JP7093994B2 - Connection position adjustment mechanism and agricultural work machine - Google Patents

Description

One embodiment of the present invention relates to a connection position adjusting mechanism and an agricultural work machine.

Currently, in order to reduce the working hours of farm work, the automation of farm work machines is being promoted, and various farm work machines are being developed. In particular, agricultural work machines (cultivators and puddling machines) that are attached to the rear of traveling machines such as tractors and can be replaced according to the type of work such as cultivating and puddling can be replaced just like attachments to the tractor. It is possible to handle various farm work, which greatly contributes to the cost reduction of farm work.

Agricultural work machines such as tillers and puddlers have a work rotor that cultivates or agitates the field by rotating the work claws. Agricultural work machines having a work rotor have a leveling mechanism behind the work rotor in order to level the fields that have been roughened by the work with the work claws. In these agricultural work machines, in order to efficiently work on the field, it is preferable that the width in the direction orthogonal to the traveling direction of the traveling machine is large. However, the above-mentioned farm work machine needs to travel on a farm road or a general road when moving from a storage place for storing the farm work machine to a place for work (for example, a field). Therefore, the width of the agricultural work machine is limited.

Therefore, for example, as in Patent Document 1, by rotating (rotating) the side work body with respect to the central work body provided in the agricultural work machine, the side work body is folded and stored sideways. Agricultural work machines have been developed that can switch between the deployed state and the deployed state of the workpiece. In such an agricultural work machine, in order to work uniformly on the field, it is preferable that the central work body and the side work body are lined up in a straight line in the deployed state. In the agricultural work machine at the time of shipment, even if the central work body and the side work body are adjusted so as to line up in a straight line in the deployed state, the positional relationship between the two may shift due to deterioration over time. In such a case, it is necessary to adjust the positional relationship between the central working body and the lateral working body in the deployed state. In Patent Document 1, the position of the folding work body 24 in the unfolded state is adjusted by adjusting the position of the contact plate portion 53 by operating the operation portion 52.

Japanese Unexamined Patent Publication No. 2006-166765

However, in the case of the technique described in Patent Document 1, since the position of the contact plate portion 53 is adjusted and the position is fixed only by the operation portion 52 (bolt member 60), the burden on the operation portion 52 is large. There is a problem that the position of the contact plate portion 53 is easily displaced.

One embodiment of the present invention has been made in view of the above problems, and an object of the present invention is to provide a connection position adjusting mechanism and an agricultural work machine in which the position is not easily displaced in the deployed state.

The connection position adjusting mechanism (connection position adjusting mechanism 70) in one embodiment of the present invention includes a first member (central working body 10C or central shield cover 24C) having a first locking member (first locking member 900). A second member (right working body 10R or right shield cover 24R, or left working body 10L or left shield cover 24L) rotatably connected to the first member, and the second member. A contact member (contact member 100) that is slidable with respect to the second member and abuts on the first locking member in a deployed state, and a slide of the contact member. A position adjusting member (position adjusting member 200) that adjusts the position of the contact member in the moving direction, and a fixing member (fixing member 300) that fixes the position of the contact member with a member different from the position adjusting member. Have.

The fixing member may act on the abutting member from a direction different from the direction in which the position adjusting member acts on the abutting member.

The fixing member may act on the abutting member in a direction from the abutting member toward the second member.

A second locking member provided on the abutting member and locked to the first locking member in a deployed state to regulate the rotation of the second member with respect to the first member ( It may further have a second locking member 400).

A rotary connecting member (rotary connecting member 500) that is rotatably connected to one of the first member and the second member and is in contact with the other of the first member and the second member, and the first member. A power source (power source 600 or rotating cylinder 46b) provided on the member or the second member to supply power to the rotating connecting member, and a connection connecting the rotating connecting member and the second locking member. Further having a rod (connecting rod 700), the rotary connecting member rotates the second member by the power received from the power source, and the power received from the power source is connected. It may be transmitted to the second locking member via a rod.

The second locking member is rotatably connected to the abutting member, and the other of the first member and the second member is the second member of the rotary connecting member when the second member rotates. It is different from the first region when it slides with the rotary connecting member in one region (first region 511) and the second locking member rotates and locks to the first locking member. It may slide with the rotary connecting member in the second region (second region 513) of the rotary connecting member.

The connecting rod may be expandable and contractible.

The connecting rod is attached to the first rod (first rod 710), the second rod (second rod 720) which is slidably connected to the first rod, and the first rod. A stopper (stopper 730) that regulates the sliding movement of the second rod with respect to the first rod in the direction in which the connecting rod extends, and an elastic member (elastic member 740) that applies an elastic force in the direction in which the connecting rod extends. You may have.

The stopper may be detachably attached to the first rod at different positions in the expansion / contraction direction of the connecting rod.

The connection position adjusting mechanism (connection position adjusting mechanism 70) in one embodiment of the present invention includes a first member (central working body 10C or central shield cover 24C) having a first locking member (first locking member 900). The second member (right working body 10R or right shield cover 24R, or left working body 10L or left shield cover 24L) rotatably connected to the first member, and the second member. The contact member (contact member 100) that is slidable and comes into contact with the first locking member when the second member is deployed, and the contact member in the slide movement direction of the contact member. A position adjusting member (position adjusting member 200) for adjusting the position of the second member, and the second member, which is provided on the contact member and locked to the first locking member in a deployed state of the second member. It has a second locking member (second locking member 400) that regulates rotation with respect to the first member.

The agricultural work machine according to the embodiment of the present invention is provided with any of the above-mentioned connection position adjusting mechanisms, a first work rotor having a work claw provided with the first member, and the second member. It has a second working rotor having a working claw.

According to one embodiment of the present invention, it is possible to provide a connection position adjusting mechanism and an agricultural work machine in which the position is not easily displaced in the deployed state.

It is a perspective view which looked at the structure of the agricultural work machine (deployed state) which concerns on one Embodiment of this invention from the back side. It is a perspective view which looked at the structure of the agricultural work machine which concerns on one Embodiment of this invention (the state which only the left side work body was housed) from the back side. It is the figure which magnified the connection part of the central working body and the side working body in the figure which looked at the agricultural working machine which concerns on one Embodiment of this invention from the front. It is an enlarged view of the connection position adjustment mechanism on the side work body side in the view which looked at the agricultural work machine which concerns on one Embodiment of this invention from the front. It is a figure which shows the contact member (hook bracket) used for the connection position adjustment mechanism which concerns on one Embodiment of this invention. It is a figure which shows the rotary connecting member (cylinder arm) used for the connecting position adjusting mechanism which concerns on one Embodiment of this invention. It is a figure which shows the connection rod (push rod and connect rod) used in the connection position adjustment mechanism which concerns on one Embodiment of this invention. It is an enlarged view of the connection position adjustment mechanism on the side work body side in the figure which looked at the agricultural work machine which concerns on one Embodiment of this invention from the side. It is an enlarged view of the connection position adjustment mechanism on the side work body side in the figure which looked at the agricultural work machine which concerns on one Embodiment of this invention from the bottom. It is a figure explaining the rotation operation of the side work body with respect to the central work body, and the figure explaining the function of the rotation connection member in the state, in the figure which saw the agricultural work machine which concerns on one Embodiment of this invention from the front. .. It is a figure explaining the rotation operation of the side work body with respect to the central work body, and the figure explaining the function of the rotation connection member in the state, in the figure which saw the agricultural work machine which concerns on one Embodiment of this invention from the front. .. It is a figure explaining the rotation operation of the side work body with respect to the central work body, and the figure explaining the function of the rotation connection member in the state, in the figure which saw the agricultural work machine which concerns on one Embodiment of this invention from the front. .. It is a figure explaining the rotation operation of the side work body with respect to the central work body, and the figure explaining the function of the rotation connection member in the state, in the figure which saw the agricultural work machine which concerns on one Embodiment of this invention from the front. ..

Hereinafter, embodiments of the connection position adjusting mechanism and the agricultural work machine according to the embodiment of the present invention will be described with reference to the drawings. However, the connection position adjusting mechanism and the agricultural work machine according to one embodiment of the present invention can be implemented in many different modes, and are not construed as being limited to the contents of the examples shown below. In the drawings referred to in this embodiment, alphabets are added after the same reference numerals or the same reference numerals to the same parts or parts having similar functions, and the repeated description thereof will be omitted. For example, when the working machine of the present invention is composed of three working bodies, a central working body, a left working body, and a right working body, "C" is added after the number to indicate that each working body has a part. , "L" and "R" may be added.

In the specification and claims of the present application, unless otherwise specified, "upper" indicates a direction vertically away from the field, and "lower" indicates a direction vertically approaching the field. Further, "front" indicates the direction in which the traveling machine is located with respect to the working machine, and "rear" indicates the direction 180 ° opposite to the front. Further, "left" indicates the left when facing the direction in which the traveling machine is located with respect to the working machine, and "right" indicates the direction 180 ° opposite to the left.

The agricultural work machine according to the present embodiment can be used as an agricultural work machine such as a tiller or a puddling machine, which is connected to the rear part of a traveling machine such as a tractor and cultivates or stirs a field by rotating a work claw. .. The agricultural work machine according to the present embodiment has a storage state in which the width of the agricultural work machine is narrowed by folding a part of the agricultural work machine, and a deployed state in which the width of the agricultural work machine is widened by expanding a part of the agricultural work machine. Can be used for switchable agricultural work machines. In the present embodiment, the features of one embodiment of the present invention will be described using a puddling machine as an example of the agricultural work machine, but the agricultural work machine according to the embodiment of the present invention may be a cultivator or a cultivator. It can also be applied to agricultural work machines other than puddling machines. Also, techniques between different embodiments can be combined as long as there is no particular technical conflict. In the present embodiment, a configuration for restricting the rotation angle between the central working body and the side working body as the connecting position adjusting mechanism will be described, but the connecting position adjusting mechanism can be applied to a rotating mechanism other than the above.

<First Embodiment>
[Structure of working machine 10]
Hereinafter, the configuration of the working machine 10 according to the first embodiment will be described in detail with reference to FIGS. 1 and 2. FIG. 1 is a perspective view of the configuration of an agricultural work machine (deployed state) according to an embodiment of the present invention as viewed from the rear side. FIG. 2 is a perspective view of the configuration of the agricultural work machine (state in which only the left work body is housed) according to the embodiment of the present invention as viewed from the rear side. Since FIG. 2 is a diagram in which the position of the left working body 10L is only changed with respect to FIG. 1, some of the above-mentioned reference numerals are omitted in FIG. 1 for convenience of explanation.

As shown in FIG. 1, the working machine 10 according to the present embodiment includes a central working body 10C, a left working body 10L, and a right working body 10R, and has a structure divided into three. The central working body 10C is arranged in the central portion of the working machine 10 and functions as a working machine main body. The left working body 10L and the right working body 10R are rotatably attached to both left and right ends of the central working body 10C in the vertical direction. The working machine 10 can be folded so as to be overlapped with the central working body 10C by rotating the left side working body 10L and the right side working body 10R diagonally upward, and by rotating diagonally downward, as shown in FIG. Can be deployed. When the left working body 10L and the right working body 10R are not particularly distinguished, these may be referred to as side working bodies.

Here, the state in which the left working body 10L and the right working body 10R are overlapped on the central working body 10C and folded is referred to as a stored state. The stored state is a state in which the width of the working machine 10 in the direction orthogonal to the traveling direction of the traveling machine body is reduced. Further, a state in which the left working body 10L, the right working body 10R, and the central working body 10C are arranged side by side is called a deployed state. The deployed state is a state in which the working machine 10 is extended in a direction orthogonal to the traveling direction of the traveling machine body.

Next, the central working body 10C will be described. The central working body 10C supports a top mast 12 and a lower link connecting part 14 that function as a connecting part with a traveling machine such as a tractor, an input shaft 16 for transmitting power from the traveling machine, and a central working body 10C extending in the left-right direction. Support frame 18, transmission frame (chain case) 20C, gear box 22, central shield cover 24C, work rotor (not shown), first central leveling body 28C, second central leveling body 30C, apron control mechanism 31a and 31b. , And a central leveler control mechanism 32C. Although not shown, the work rotor is provided with a plurality of work claws.

The top mast 12 is provided in the front central portion of the central working body 10C, and the lower link connecting portions 14 are provided in two front left and right positions of the central working body 10C. The top mast 12 and the lower link connecting portions 14 provided at the left and right two places are connected to the top link of the traveling machine (not shown) and the lower links (three-point link hitch mechanism) provided at the left and right two places, respectively, and the working machine 10 Is mounted on the rear of the traveling machine so that it can be raised and lowered. The working machine 10 and the traveling machine may be connected via an auto hitch frame mounted on the three-point link hitch mechanism of the traveling machine.

The input shaft 16 is provided in the gear box 22 provided in the front central portion of the central work body 10C, and inputs the power transmitted from the traveling machine body to the work machine 10. The input shaft 16 is connected to the PTO shaft of the traveling machine body, and power is transmitted from the PTO shaft via a universal joint or the like.

The support frame 18 also serves as the main body frame of the central working body 10C, and extends in the left-right direction with respect to the traveling direction of the traveling machine body on both the left and right sides of the gear box 22. Here, a transmission shaft (not shown) is contained in the support frame 18 arranged between the gear box 22 and the transmission frame 20C. By this transmission shaft, power for rotating the working rotor is transmitted from the gear box 22 to the transmission frame 20C.

The central shield cover 24C is provided along the support frame 18 and is arranged so as to cover the upper part of the work rotor. The soil crushed by the work rotor hits the inner wall of the central shield cover 24C and is further crushed, and at the same time, falls and returns to the field again. As described above, the central shield cover 24C has both a function of preventing the scattering of soil rolled up by the work rotor and a function of crushing the soil.

The work rotor of the central work body 10C has a configuration in which a plurality of work claws are attached to a rotary shaft (not shown) rotatably supported below the central shield cover 24C by using a flange or a holder. Have. The power input from the input shaft 16 is changed in the gearbox 22, transmitted via the transmission shaft in the support frame 18, the transmission frame 20C, and the like, and converted into the rotary motion of the work rotor.

The first central leveling body 28C is rotatably attached to the central shield cover 24C, and is usually called an apron. The second central leveling body 30C is rotatably attached to the first central leveling body 28C in the vertical direction, and is usually called a leveler. The first central leveling body 28C serves as a cover for returning the mud and soil scattered by the rotation of the work rotor of the central working body 10C to the field, and the ground leveling member that presses the second central leveling body 30C against the field to perform the leveling work. To play the role of. The second central ground leveling body 30C plays a role as a ground leveling member for leveling the surface of the field by directly contacting the field.

The apron control mechanisms 31a and 31b are installed between the central shield cover 24C and the first central leveling body 28C, and function as means for controlling the vertical rotation of the first central leveling body 28C. The apron control mechanisms 31a and 31b have a pressurizing mode that hinders the upward rotation of the first central leveling body 28C and a non-pressurizing mode that does not hinder the upward rotation of the first central leveling body 28C. It is switchable, and in the pressurizing mode, an urging force that hinders upward rotation is exerted on the first central leveling body 28C. This urging force is realized by the reaction force of the springs arranged on the link rods constituting the apron control mechanisms 31a and 31b. By setting the apron control mechanisms 31a and 31b to the pressure mode, the soil crushing performance and the ground leveling performance of the first central leveling body 28C can be improved, and the field can be finished more efficiently.

The central leveler control mechanism 32C is installed between the central shield cover 24C and the second central leveling body 30C, and functions as a means for controlling the vertical rotation of the second central leveling body 30C. The central leveler control mechanism 32C has a soil leveling mode in which the second central leveling body 30C is fixed in a downwardly oriented state (soil leveling state) and a ground leveling mode in which the second central leveling body 30C does not hinder the vertical rotation. It is switchable. The mode switching is realized by restricting or releasing the operation of the link rod constituting the central leveler control mechanism 32C.

Next, the left working body 10L will be described. The left side work body 10L includes a left side shield cover 24L, a work rotor 26L (see FIG. 2) arranged below the left side shield cover 24L, a transmission frame (chain case) 20L, a first left side leveling body 28L, and a second left side leveling body. It is equipped with 30 L, a left side leveler control mechanism 32L, and a left side extension leveling body rotation mechanism 34L. The roles played by the left shield cover 24L, the transmission frame 20L, the first left side leveling body 28L, the second left side leveling body 30L, and the left side leveler control mechanism 32L are the same as the corresponding elements in the above-mentioned central working body 10C, respectively. Therefore, the description here is omitted.

Here, as shown in FIG. 2, the work rotor 26L includes a rotary shaft 26La and a plurality of work claws 26Lb arranged around the rotary shaft 26La via a holder. When the rotating shaft 26La is rotated by the power transmitted via the transmission frame 20L, the working claws 26Lb arranged around the rotating shaft 26L rotate all at once, and the soil in the field is crushed and agitated. Although not shown, the working rotors of the central working body 10C and the right working body 10R have the same configuration as the working rotor 26L.

Returning to FIG. 1, the left side extension leveling body rotation mechanism 34L is a mechanism for rotating the left side extension leveling body 36L rotatably connected to the second left side leveling body 30L of the left side working body 10L. be. The left-side extended ground leveling body 36L is provided extending from the end of the left-side working body 10L in the left direction of the working machine 10, and is responsible for the ground-leveling work in the outer region of the left-side working body 10L. The second left side leveling body 30L and the left side extension leveling body 36L are rotatably connected by the extension leveling body connecting portion 38L so that the left side extension leveling body 36L is folded toward the second left side leveling body 30L. It is rotatable.

Here, in the present embodiment, the left extension leveling body rotation mechanism 34L includes a drive motor unit 34La, a rotation arm 34Lb, and a connecting wire 34Lc. One end of the rotating arm 34Lb is connected to the drive motor unit 34La, and the other end is connected to the connecting wire 34Lc. Further, one end of the connecting wire 34Lc is connected to the rotating arm 34Lb, and the other end is connected to the left side extension leveling body 36L.

When the drive motor unit 34La operates, a rotational driving force is generated, and the rotating arm 34Lb rotates in a substantially horizontal direction. In conjunction with the rotational operation of the rotating arm 34Lb, the left extended ground leveling body 36L pulled by the connecting wire 34Lc rotates via the extended ground leveling body connecting portion 38L. This makes it possible to store and deploy the left extension leveling body 36L.

In the present embodiment, an example in which the left extended ground leveling body rotation mechanism 34L is composed of the drive motor unit 34La, the rotating arm 34Lb, and the connecting wire 34Lc is shown, but the left side is interposed via the extended ground leveling body connecting portion 38L. Any other mechanism may be used as long as it is a mechanism that allows the extended ground leveling body 36L to rotate.

Next, the right working body 10R will be described. The right side work body 10R includes a right side shield cover 24R, a work rotor (not shown) arranged below the right side shield cover 24R, a transmission frame (chain case) 20R, a first right side leveling body 28R, and a second right side leveling body 30R. , Right leveler control mechanism 32R, and right side extension leveling body rotation mechanism 34R. Here, the roles of the right side shield cover 24R, the transmission frame 20R, the first right side ground leveling body 28R, the second right side leveling body 30R, the right side leveler control mechanism 32R, and the right side extended ground leveling body rotation mechanism 34R are described above. Since it is the same as each corresponding element in the left working body 10L, the description here is omitted. Further, the right-side extended ground leveling body 36R and the extended ground-leveling body connecting portion 38R are the same as the above-mentioned left-side extended leveling body 36L and the extended ground-leveling body connecting portion 38L.

Further, in the working machine 10 according to the present embodiment, the central working body 10C, the left working body 10L, and the right working body 10R are provided with central soil gathering plates 40Ca and 40Cb, left side soil gathering plate 40L, and right side soil gathering plate 40R, respectively. .. These are plates for controlling the water flow (actually, the flow of water including soil) generated during the puddling work, and by providing these soil gathering plates, the finish of the field surface can be improved.

For example, the central soil gathering plates 40Ca and 40Cb are provided at positions where the soil is returned to the ruts of the tires and the like of the traveling machine traveling in front of the working machine 10, and contribute to the flattening of the undulations of the field caused by the ruts. Further, the left side soil gathering plate 40L and the right side soil gathering plate 40R pull the soil inward and draw the water flow around it to the back side of each soil gathering plate. As a result, even if straw or the like is floating outside the ends of the left working body 10L and the right working body 10R, it is drawn into each working rotor by the water flow and contributes to the improvement of the finish of the field surface.

Further, in the working machine 10 according to the present embodiment, the left side working body 10L and the right side working body 10R are provided with a left side leveler control mechanism 32L and a right side leveler control mechanism 32R, respectively. The left side leveler control mechanism 32L and the right side leveler control mechanism 32R, like the central leveler control mechanism 32C, are means for restricting or releasing the vertical rotation of the second left side leveling body 30L and the second right side leveling body 30R, respectively. Functions as.

The left working body 10L and the right working body 10R described above rotate by the action of the rotating cylinders 46a and 46b via the working body rotating mechanisms 44a and 44b provided at both ends of the central working body 10C, and described above. Will be in the stowed or unfolded state. At that time, the first central leveling body 28C and the first left side leveling body 28L, and the first central leveling body 28C and the first right side leveling body 28R are connected by the first connecting portions 48a and 48b, respectively. Further, the second central leveling body 30C and the second left side leveling body 30L, and the second central leveling body 30C and the second right side leveling body 30R are connected by the second connecting portions 50a and 50b, respectively.

In the present specification and claims, the collective term of the left working body 10L and the right working body 10R may be referred to as a "side working body". In addition, the general term for the first left side leveling body 28L and the first right side leveling body 28R is called "first side leveling body", and the general term for the second left side leveling body 30L and the second right side leveling body 30R. Sometimes called "second lateral leveling body".

[Structure of working body rotation mechanism 44]
FIG. 3 is an enlarged view of a connecting portion between a central working body and a side working body in a front view of the agricultural working machine according to the embodiment of the present invention. In FIG. 3, the central working body 10C and the right working body 10R are shown in an enlarged manner. In the following description, the configurations of the central working body 10C and the right working body 10R will be described, but the configurations of the central working body 10C and the left working body 10L are the same. That is, in the following description, the right working body 10R can be replaced with the left working body 10L.

As shown in FIG. 3, the working body rotating mechanism 44b has a working body rotating arm 60 (60R and 60C) and a connecting position adjusting mechanism 70. The work body rotation arm 60 determines the rotation range of the right side work body 10R with respect to the central work body 10C. That is, the working body rotating arm 60 provides the rotation center of the right working body 10R with respect to the central working body 10C. The connection position adjusting mechanism 70 determines the angle of the right working body 10R with respect to the central working body 10C in the rotation range in the deployed state. Thereby, the connection position of the right side working body 10R with respect to the central working body 10C can be adjusted.

The work body rotation arm 60 has a central work body rotation arm 60C and a right side work body rotation arm 60R. These are rotatably connected at the connecting portion 61. The central working body rotating arm 60C is fixed to the central shield cover 24C. The right working body rotating arm 60R is fixed to the right shield cover 24R. That is, the right working body 10R rotates about the connecting portion 61 with respect to the central working body 10C. The central working body 10C is provided with a first locking member 900. The first locking member 900 is fixed to the central shield cover 24C.

Here, the central working body 10C or the central shield cover 24C may be referred to as a first member. The right working body 10R or the right shield cover 24R may be referred to as a second member. The left working body 10L or the left shield cover 24L may be referred to as a second member.

The connection position adjusting mechanism 70 includes a contact member 100, a position adjusting member 200, a fixing member 300, a second locking member 400, a rotary connecting member 500, a power source 600, and a connecting rod 700.

The contact member 100 is a member that can be slidably moved with respect to the right side shield cover 24R. In the state where the right working body 10R is deployed, the contact member 100 comes into contact with the first locking member 900. Since the abutting member 100 abuts on the first locking member 900, the rotation of the right working body 10R is restricted, so that the connection position (rotation angle) of the right working body 10R with respect to the central working body 10C in the deployed state. Is decided. That is, the position of the right working body 10R with respect to the central working body 10C in the deployed state is determined by the position of the contact member 100 in the slide moving direction of the contact member 100. Since the abutting member 100 can be slidably moved, the connecting position can be adjusted steplessly. The detailed configuration of the contact member 100 will be described later. The contact member 100 can also be referred to as a hook bracket.

The position adjusting member 200 adjusts the position of the abutting member 100 in the slide moving direction of the abutting member 100. In the present embodiment, the position adjusting member 200 is provided on the opposite side of the central working body 10C with respect to the contact member 100 in the deployed state. In other words, the position adjusting member 200 is provided on the side opposite to the side where the contact member 100 and the central working body 10C are in contact with the contact member 100. When the position adjusting member 200 pushes the contact member 100 toward the central working body 10C in the deployed state, the position of the contact member 100 is adjusted. In other words, the position adjusting member 200 acts on the abutting member 100 in the slide moving direction of the abutting member 100. Specifically, a bolt is used as the position adjusting member 200. By screwing in the bolt and pushing the contact member 100 with the tip of the bolt, the position of the contact member 100 is adjusted.

In the present embodiment, the position adjusting member 200 is configured by using a push bolt as described above, but the configuration is not limited to this. The position adjusting member 200 may have a function of sliding and moving the contact member 100, and may be an expansion / contraction mechanism whose expansion / contraction operation is controlled by, for example, a motor. Further, the position adjusting member 200 may be provided at a position different from the position on the opposite side of the central working body 10C with respect to the contact member 100. For example, the position adjusting member 200 may be provided at a position where the position adjusting member 200 overlaps with the abutting member 100 in the direction in which the right side working body 10R extends, or may be provided on the central working body 10C side with respect to the abutting member 100.

The fixing member 300 is a member different from the position adjusting member 200. The fixing member 300 fixes the position of the abutting member 100 in the slide moving direction of the abutting member 100 at a place different from the place where the position adjusting member 200 adjusts the position of the abutting member 100. The fixing member 300 acts on the abutting member 100 from a direction different from the sliding moving direction of the abutting member 100. Specifically, a bolt is used as the fixing member 300, and the bolt acts on the abutting member 100 in the direction from the abutting member 100 toward the right side shield cover 24R.

In the present embodiment, the configuration in which the fixing member 300 acts on the abutting member 100 in the direction from the abutting member 100 toward the right side shield cover 24R is exemplified, but the configuration is not limited to this. For example, when the configuration shown in FIG. 3 is defined that the fixing member 300 fixes the contact member 100 to the right side shield cover 24R from "above" the contact member 100, the fixing member 300 is a position adjusting member. The position of the contact member 100 may be fixed from a "side" different from the direction in which the 200 acts on the contact member 100. Alternatively, each of the contact member 100 and the right side shield cover 24R is provided with holes so that the contact member 100 can be fixed at multiple stages in the slide moving direction, and a member such as a pin is provided in each hole. The position of the contact member 100 may be fixed by passing it through.

The second locking member 400 is locked to the first locking member 900 in the deployed state to restrict the rotation of the right working body 10R with respect to the central working body 10C. The second locking member 400 is provided on the contact member 100. The second locking member 400 is rotatably connected to the abutting member 100. The state in which the second locking member 400 is locked to the first locking member 900 is referred to as a locked state. On the other hand, a state in which the second locking member 400 is not locked to the first locking member 900 or is in a positional relationship in which the second locking member 400 cannot be locked is referred to as an unlocked state. In the present embodiment, the locked state and the unlocked state are switched by the rotation of the second locking member 400. Although the details will be described later, the tip of the second locking member 400 has a hook shape, and in the locked state, the tip of the second locking member 400 is first locked with respect to the first locking member 900. The member 900 wraps around on the side opposite to the position where the member 900 comes into contact with the abutting member 100 (see FIG. 4).

In the present embodiment, the configuration in which the second locking member 400 is rotatably connected to the abutting member 100 is exemplified, but the configuration is not limited to this configuration. For example, the second locking member 400 is connected to the abutting member 100 so as to slide and move in a direction intersecting the sliding moving direction of the abutting member 100 (for example, in an orthogonal direction) with respect to the abutting member 100. You may.

The rotary connecting member 500 is rotatably connected to the central working body 10C. Specifically, the rotary connecting member 500 rotates around the connecting portion 591 fixed to the central shield cover 24C. The detailed configuration of the rotary connecting member 500 will be described later, but the rotary connecting member 500 rotates the right working body 10R while being in contact with a part of the right working body 10R. That is, the rotation of the rotary connecting member 500 causes the right working body 10R to rotate with respect to the central working body 10C. The rotary connecting member 500 can also be referred to as a cylinder arm.

The power source 600 is rotatably connected to the central working body 10C. In this embodiment, the power source 600 corresponds to the rotating cylinder 46b shown in FIG. Specifically, the power source 600 has a cylinder tube 610 and a piston rod 620. The cylinder tube 610 is rotatably connected to the central working body 10C at the connecting portion 630. The connection portion 630 is fixed to the support frame 18. The piston rod 620 is rotatably connected to the rotary connecting member 500 at the connecting portion 640. By the expansion and contraction operation of the cylinder tube 610 and the piston rod 620, the rotary connecting member 500 rotates around the connecting portion 591. In other words, the power source 600 powers the rotary connecting member 500. In other words, the rotary connecting member 500 converts the linear power of the power source 600 into rotary power.

The connecting rod 700 is rotatably connected to each of the second locking member 400 and the rotary connecting member 500. That is, the connecting rod 700 connects the rotary connecting member 500 and the second locking member 400. The power of the power source 600 is transmitted to the second locking member 400 by the connecting rod 700, and the second locking member 400 rotates. That is, the power of the power source 600 is transmitted to the second locking member 400 via the rotary connecting member 500 and the connecting rod 700, so that the locked state and the unlocked state can be switched. Although the details will be described later, the connecting rod 700 can be expanded and contracted. However, the connecting rod 700 does not have to be expandable and contractible.

In this embodiment, the configuration in which the first locking member 900, the rotary connecting member 500, and the power source 600 are provided on the central working body 10C and the second locking member 400 is provided on the right working body 10R is exemplified. However, it is not limited to this configuration. For example, only the rotary connecting member 500 and the power source 600, or the power source 600 may be provided on the right working body 10R. In this case, the first locking member 900 and the second locking member 400 may be provided on the central working body 10C and the right working body 10R, respectively, as in FIG. 3, and the first locking member 900 is the right working body. The second locking member 400 may be provided on the central working body 10C and is provided on the 10R.

[Structure of Rotating Connecting Member 500]
FIG. 4 is an enlarged view of the connection position adjusting mechanism on the side working body side in the view of the agricultural working machine according to the embodiment of the present invention as viewed from the front. FIG. 4 shows the rotary connecting member 500 in the locked state. As shown in FIG. 4, in the locked state, the first contact portion 110 of the contact member 100 is in contact with the first region 910 of the first locking member 900. Further, in the locked state, the tip portion 410 of the second locking member 400 is located on the second region 920 side opposite to the first locking member 900 on the opposite side of the first region 910. In the locked state, even if an external force is applied to the right working body 10R in the direction in which the right working body 10R rotates upward, the tip portion 410 is locked to the second region 920 of the first locking member 900. , The upward rotation of the right working body 10R can be restricted.

The right shield cover 24R includes a pedestal 2410, a first holding portion 2420, and a second holding portion 2430. The pedestal 2410 is sandwiched between the first holding portion 2420 and the second holding portion 2430. The pedestal 2410 projects toward the front side of the paper in FIG. The contact member 100 slides on the pedestal 2410. The pedestal 2410 is provided with a through hole through which the fixing member 300 can penetrate. Alternatively, when the fixing member 300 is a screw, the pedestal 2410 is provided with a screw hole corresponding to the shape of the fixing member 300. The first holding portion 2420 is provided on one end side of the pedestal 2410. The first holding portion 2420 is provided with a through hole or a screw hole through which the position adjusting member 200 can pass. The tip portion 210 of the position adjusting member 200 penetrates the first holding portion 2420 and is in contact with the second contact portion 120 of the contact member 100. The first holding portion 2420 holds the position adjusting member 200. The second holding portion 2430 is provided on the other end side of the pedestal 2410. The second holding portion 2430 is provided with an opening 2431 (see FIG. 8) through which the contact member 100 can penetrate. The second holding portion 2430 holds the contact member 100.

The right working body 10R has a continuous sliding portion 2450. The continuous sliding portion 2450 is fixed to the right working body rotating arm 60R. That is, the continuous sliding portion 2450 rotates together with the right side shield cover 24R and the right side working body rotating arm 60R. Although the details will be described later, the continuous sliding portion 2450 receives rotational power from the rotary connecting member 500 by sliding with the intermittent sliding portion 510 (see FIG. 6) provided in the rotary connecting member 500.

The contact member 100 is pressed against the pedestal 2410 by a plurality of fixing members 300. A part of the plurality of fixing members 300 is provided at different positions in the slide moving direction of the contact member 100. The number of fixing members 300 closer to the first locking member 900 is larger than the number of fixing members 300 farther from the first locking member 900. Due to the contact with the first locking member 900, a very strong force is applied to the side of the contact member 100 close to the first locking member 900. Therefore, by increasing the number of the fixing members 300 on the side close to the first locking member 900, the contact member 100 can be fixed more firmly. The number of fixing members 300 may be two or less, or four or more.

FIG. 5 is a diagram showing a contact member (hook bracket) used in the connection position adjusting mechanism according to the embodiment of the present invention. 5A is a plan view of the contact member 100, and FIG. 5B is a first side view of the contact member 100 as viewed from the direction of arrow B. C) is a second side view of the contact member 100 as viewed from the direction of the arrow C of the contact member 100 of (A).

As shown in FIG. 5, the contact member 100 has an elongated hole 130 and a connection portion 140 in addition to the first contact portion 110 and the second contact portion 120 described above. As shown in FIGS. 5B and 5C, the first contact portion 110 has a larger plate thickness than the other regions. In this example, since the reinforcing member 111 is provided on the first contact portion 110, the plate thickness of the first contact portion 110 is larger than the plate thickness of the other region. The elongated hole 130 has a length in the slide moving direction of the abutting member 100, and is a through hole penetrating from the front surface to the back surface of the abutting member 100. When the fixing member 300 penetrates the elongated hole 130, the contact member 100 can slide and move in the longitudinal direction of the elongated hole 130 in a state where the fixing member 300 is loosened. That is, the movable range of the contact member 100 is determined by the shape of the elongated hole 130. The connecting portion 140 is a cylindrical member. The connection portion 140 is provided with a through hole 141 (or a hollow portion). By inserting the columnar connecting portion of the second locking member 400 into the connecting portion 140, the second locking member 400 is rotatably connected to the abutting member 100.

FIG. 6 is a diagram showing a rotary connecting member (cylinder arm) used in the connecting position adjusting mechanism according to the embodiment of the present invention. FIG. 6A is a plan view of the rotary connecting member 500, and FIG. 6B is a first side view of the rotary connecting member 500 when the rotary connecting member 500 of FIG. 6 is viewed from the direction of arrow B. Yes, (C) is a second side view of the rotary connecting member 500 seen from the direction of the arrow C of the rotary connecting member 500 of (A).

As shown in FIG. 6, the rotary connecting member 500 has a main body portion 501, an intermittent sliding portion 510, a connecting portion 520, 530, 540, a support column 550, and a support plate 560. The main body 501 is a plate-shaped member.

The intermittent sliding portion 510 is a through hole provided in the plate-shaped main body portion 501. The intermittent sliding portion 510 has a first region 511 having a length in the first direction D1 and a second region 513 having a length in the second direction D2. That is, the first region 511 and the second region 513 have a longitudinal direction different from that of the second region 513. The side wall of the intermittent sliding portion 510 in the first region 511 has a curved shape in a plan view. The curved shapes of the upper part and the lower part of the first region 511 are different shapes. These curved shapes are adjusted so that excessive pressure is not applied to the intermittent sliding portion 510 and the continuous sliding portion 2450 during the rotational operation of the right working body 10R. In the state of FIG. 4, the continuous sliding portion 2450 penetrates the intermittent sliding portion 510, and the continuous sliding portion 2450 is caused by the rotation of the rotary connecting member 500 to form the first region 511 and the first region 511 of the intermittent sliding portion 510. Two regions 513 are slid.

The connecting portion 520 is rotatably connected to the connecting portion 591 fixed to the central shield cover 24C. The connection portion 520 is a cylindrical member, and a rotation shaft is inserted into the hollow portion thereof. The connecting portion 530 is rotatably connected to the piston rod 620. The connecting portion 530 is a columnar member, and is inserted into a circular member provided at the tip of the piston rod 620. The connecting portion 540 is rotatably connected to the connecting rod 700. The connecting portion 540 is a columnar member, and is inserted into the connecting portion 715 (see FIG. 7) provided at the tip of the connecting rod 700. The connecting portion 540 is connected to the main body portion 501 by two columns 550 and a support plate 560 connected to the columns 550.

FIG. 7 is a diagram showing a connecting rod (push rod and connect rod) used in the connecting position adjusting mechanism according to the embodiment of the present invention. In FIG. 7, the connecting rod 700 is shown in a disassembled state. As shown in FIG. 7, the connecting rod 700 has a first rod 710, a second rod 720, a stopper 730, and an elastic member 740. The first rod 710 can also be called a push rod. The second rod 720 can also be called a connect rod.

The first rod 710 has a stopper mounting portion 711, a stopper 713, and a connecting portion 715. The first rod 710 is divided into a first region 701 and a second region 703. In the first region 701, a plurality of stopper installation portions 711 are provided on the first rod 710. In the present embodiment, the stopper installation portion 711 is provided with a through hole penetrating the first rod 710. The plurality of stopper mounting portions 711 are arranged in the longitudinal direction of the first rod 710. In other words, the plurality of stopper installation portions 711 are provided at different positions in the expansion / contraction direction of the connecting rod 700. A stopper 730 is inserted into the stopper installation portion 711. Further, in the first region 701, an elastic member 740 is provided around the first rod 710. In the second region 703, a connecting portion 715 is provided at the tip end portion of the first rod 710. The connecting portion 715 is connected to the connecting portion 540 of the rotary connecting member 500. A stopper 713 is provided between the first region 701 and the second region 703. The stopper 713 has a larger diameter than the other regions and restricts the movement of the elastic member 740 in the direction from the first region 701 to the second region 703. In this example, the stopper 713 has a disk shape.

The shape of the stopper installation portion 711 may be any shape as long as the stopper 730 can be installed, and may be a shape other than the through hole. Further, the shape of the stopper 713 may be any shape as long as it can regulate the movement of the elastic member 740, and may be a shape other than the disk shape. For example, as the stopper 713, the same configuration as that of the stopper installation portion 711 can be applied. By providing a plurality of through holes similar to the stopper installation portion 711 instead of the stopper 713, the position for restricting the movement of the elastic member 740 may be adjustable.

The second rod 720 has a sliding portion 721, a connecting arm 723, and a connecting portion 725. The sliding portion 721 has a cylindrical shape. The inner diameter of the cylindrical hollow portion is slightly larger than the outer diameter of the first rod 710 in the first region 701. The connecting arm 723 is fixed to the sliding portion 721. A connecting portion 725 is provided at the tip of the connecting arm 723. The connecting portion 725 is connected to the second locking member 400.

The stopper 730 has a shape that can be attached to and detached from the stopper installation portion 711. For example, the stopper 730 has a pin shape. The stopper 730 can be attached to and detached from different positions in the expansion / contraction direction of the connecting rod 700. The stopper 730 restricts the second rod 720 to slide and move in the direction in which the connecting rod 700 extends with respect to the first rod 710. The elastic member 740 has an elastic force and acts on the first rod 710 and the second rod 720 to apply the elastic force in the direction in which the connecting rod 700 extends.

The stopper 730 may have a shape that can be installed in the stopper installation portion 711, and may have a shape other than the pin shape. The shape of the stopper 730 can be appropriately changed according to the shape of the stopper installation portion 711. Further, when the position of the stopper 713 can be adjusted as described above, a member whose position cannot be adjusted such as the stopper 713 may be provided instead of the stopper installation portion 711 and the stopper 730. In the present embodiment, the coil spring is used as the elastic member 740, but a member other than the coil spring may be used as long as it has the above-mentioned function.

By inserting the first rod 710 with the elastic member 740 attached into the sliding portion 721, the second rod 720 is slidably connected to the first rod 710. In the state where the first rod 710 and the second rod 720 are connected, the elastic member 740 is in a compressed state. By installing the stopper 730 in the stopper installation portion 711 in this state, the connecting rod 700 is configured. With this structure, the expansion / contraction operation of the connecting rod 700 is realized. The stopper 730 regulates the sliding movement of the second rod 720 in the direction in which the connecting rod 700 extends. That is, the length of the connected rod 700 in the extended state is determined by the position of the stopper 730.

Since the connecting rod 700 can be expanded and contracted, it is possible to suppress the destruction of the connecting position adjusting mechanism 70 as described below. For example, when the distance between the central working body 10C and the right working body 10R in the deployed state is longer than an appropriate distance, the second locking member 400 is rotating and changing from the unlocked state to the locked state. The tip 410 of the second locking member 400 hits the first locking member 900. Even in such a case, the connecting rod 700 can be shrunk to suppress the destruction of the connecting position adjusting mechanism 70.

Further, since a plurality of stopper installation portions 711 are provided, the length of the connecting rod 700 can be adjusted. By being able to adjust the length of the connecting rod 700, it is possible to suppress problems when the locked state is changed to the unlocked state as described below. For example, in FIG. 4, when the contact member 100 is fixed at a position where it slides to the left, the second locking member 400 also moves to the left together with the contact member 100. At this time, since the second locking member 400 is locked to the first locking member 900, the rotation angle of the second locking member 400 does not change even if the second locking member 400 moves to the left. In such a case, the connecting rod 700 is in a contracted state as compared with the state before the contact member 100 and the second locking member 400 move to the left. Therefore, the distance (angle change amount) that the rotary connecting member 500 should rotate in order to change from the locked state to the unlocked state becomes large. As a result, the right side working body 10R may be lifted by the rotary connecting member 500 and the connecting position adjusting mechanism 70 may be destroyed before the locked state is changed to the unlocked state.

Even in such a case, for example, by changing the position where the stopper 730 is installed to the stopper installation portion 711 on the second region 703 side, the length of the connecting rod 700 can be shortened, and the locked state is changed to the unlocked state. Therefore, the distance that the rotary connecting member 500 should rotate can be reduced. Therefore, even in the above case, the destruction of the connection position adjusting mechanism 70 can be suppressed.

FIG. 8 is an enlarged view of the connection position adjusting mechanism on the side working body side in the view of the agricultural working machine according to the embodiment of the present invention from the side. FIG. 9 is an enlarged view of the connection position adjusting mechanism on the side working body side in the view of the agricultural working machine according to the embodiment of the present invention as viewed from below. FIG. 8 corresponds to the first side view of each member as viewed from the direction of arrow B in FIGS. 5 and 6. FIG. 9 corresponds to a second side view of each member as viewed from the direction of arrow C in FIGS. 5 and 6. As shown in FIGS. 8 and 9, the second holding portion 2430 is provided with an opening 2431. The contact member 100 is provided so as to penetrate the opening 2431. Further, as described above, the connecting portion 540 of the rotary connecting member 500 is connected to the connecting portion 715 of the connecting rod 700. Similarly, the connecting portion 725 of the connecting rod 700 is connected to the second locking member 400.

Since the abutting member 100 penetrates the opening 2431, for example, even when the fixing member 300 is removed, it is possible to prevent the abutting member 100 from falling off.

[Rotating operation of the side working body and function of the rotating connecting member 500]
10 to 13, the rotation operation of the right side working body 10R and the function of the rotation connecting member 500 at that time will be described. 10 to 13 are views for explaining the rotational operation of the side working body with respect to the central working body in the front view of the agricultural working machine according to the embodiment of the present invention, respectively, and the rotary connecting member in the state thereof. It is a figure explaining the function of. In FIGS. 10 to 13, the positional relationship between the rotary connecting member 500 and the continuous sliding portion 2450 in each state is shown in the region surrounded by the square. In each of the states of FIGS. 10 to 13, the rotation angle of the rotation connection member 500 is different, but the orientation of the rotation connection member 500 shown in the area surrounded by the square is unified.

FIG. 10 is a diagram showing a state immediately before the right working body 10R in the stored state starts to rotate. In the stowed state, the right working body 10R is located above the central working body 10C. The rotating cylinder 46b, which is the power source 600, is in the most contracted state. In this state, a force that tends to rotate downward is acting on the right working body 10R due to its own weight. Therefore, when the power source 600 operates to rotate the right working body 10R (that is, the rotating cylinder 46b extends), the rotation connecting member 500 rotates in the R1 direction and rotates with the rotation. When the intermittent sliding portion 510 provided on the connecting member 500 pushes the continuous sliding portion 2450, the rotation of the right working body 10R is started. Therefore, immediately before the right working body 10R starts to rotate, the continuous sliding portion 2450 is in contact with the first region 511 of the intermittent sliding portion 510.

FIG. 11 is a diagram showing a state in which the right working body 10R has started to rotate upward. In this state, the rotating cylinder 46b begins to extend, and the rotating connecting member 500 rotates in the R1 direction. While changing from the state shown in FIG. 10 to the state shown in FIG. 11, the continuous sliding portion 2450 moves in the direction of the arrow in the intermittent sliding portion 510 while sliding with the intermittent sliding portion 510 of the first region 511. do.

When the rotating cylinder 46b further extends from the state shown in FIG. 11, the rotating connecting member 500 further rotates in the R1 direction, and is in the state shown in FIG. FIG. 12 is a diagram showing a state immediately after the right working body 10R is rotated to the deployed state. In this state, the second locking member 400 is not yet locked to the first locking member 900. During the period from the state of FIG. 11 to the state of FIG. 12, the continuous sliding portion 2450 moves in the direction of the arrow in the intermittent sliding portion 510 while sliding with the intermittent sliding portion 510 of the first region 511. do. Then, in the state of FIG. 12, the continuous sliding portion 2450 reaches the vicinity of the boundary between the first region 511 and the second region 513.

The arrow indicating the locus of the continuous sliding portion 2450 makes a U-turn in the middle, but this is because the center of gravity of the right working body 10R crosses the fulcrum due to the rotation of the right working body 10R and the gravity of the right working body 10R causes it. It means that the direction of the action received by the rotary connecting member 500 in the rotational direction is reversed. That is, when the continuous sliding portion 2450 is slid with the first region 511-1 on the upper side, the rotary connecting member 500 lifts the right working body 10R. On the other hand, when the continuous sliding portion 2450 is slid with the lower first region 511-2, the rotary connecting member 500 supports the right working body 10R that tries to rotate downward by its own weight. ..

When the rotation cylinder 46b further extends from the state shown in FIG. 12, the rotation connecting member 500 further rotates in the R1 direction, and the state shown in FIG. 13 is obtained. During the period from the state of FIG. 12 to the state of FIG. 13, the continuous sliding portion 2450 moves in the direction of the arrow in the intermittent sliding portion 510 while sliding with the intermittent sliding portion 510 of the second region 513. do. Since the longitudinal direction of the second region 513 is different from the longitudinal direction of the first region 511, the rotary connecting member 500 is while the continuous sliding portion 2450 is sliding with the intermittent sliding portion 510 of the second region 513. Rotates the second locking member 400 with almost no rotation of the right working body 10R. By this operation, the second locking member 400 changes from the unlocked state to the locked state.

As described above, the continuous sliding portion 2450 slides with the rotary connecting member 500 in the first region 511 of the rotary connecting member 500 when the right working body 10R rotates. Further, when the second locking member 400 rotates and is locked to the first locking member 900, the continuous sliding portion 2450 is connected to the rotary connecting member 500 in the second region 513 of the rotary connecting member 500. Sliding.

In this embodiment, the configuration in which the continuous sliding portion 2450 slides with the rotary connecting member 500 is exemplified, but the configuration is not limited to this configuration. The member that slides the rotary connecting member 500 may be a member that rotates together with the right working body 10R, and may slide with other members fixed to the right working body 10R.

Further, in the present embodiment, the configuration in which the continuous sliding portion 2450 is fixed to the right working body 10R and the rotary connecting member 500 is rotatably connected to the central working body 10C is exemplified, but the configuration is not limited to this. .. For example, contrary to the above, the continuous sliding portion 2450 may be fixed to the central working body 10C, and the rotary connecting member 500 may be rotatably connected to the right working body 10R.

Although the present invention has been described above with reference to the drawings, the present invention is not limited to the above-described embodiment, and can be appropriately modified without departing from the spirit of the present invention. For example, a person skilled in the art who has appropriately added, deleted, or changed the design of a component based on the connection position adjusting mechanism and the agricultural work machine of the present invention is also the present invention as long as it has the gist of the present invention. Included in the range. Further, each of the above-described embodiments can be appropriately combined as long as there is no contradiction with each other, and technical matters common to each embodiment are included in each embodiment even if there is no explicit description.

Further, even if the action / effect is different from the action / effect brought about by the embodiment of each of the above-mentioned embodiments, those which are clear from the description of the present specification or which can be easily predicted by those skilled in the art are referred to. Naturally, it is understood that it is brought about by the present invention.

10: Working machine, 10C: Central working body, 10L: Left working body, 10R: Right working body, 12: Top mast, 14: Lower link connecting part, 16: Input shaft, 18: Support frame, 20C, 20L, 20R : Transmission frame, 22: Gear box, 24C: Central shield cover, 24L: Left shield cover, 24R: Right shield cover, 26L: Work rotor, 26La: Rotating shaft, 26Lb: Work claw, 28C: 1st central ground leveling body, 28L: 1st left side ground plane, 28R: 1st right side ground preparation body, 30C: 2nd central ground preparation body, 30L: 2nd left side ground preparation body, 30R: 2nd right side ground preparation body, 31a: apron control mechanism, 32C: central leveler Control mechanism, 32L: Left side leveler control mechanism, 32R: Right side leveler control mechanism, 34L: Left side extension leveling body rotation mechanism, 34La: Drive motor unit, 34Lb: Rotating arm, 34Lc: Connecting wire, 34R: Right side extension leveling body Rotation mechanism, 36L: Left side extension leveling body, 36R: Right side extension leveling body, 38L, 38R: Extension leveling body connection part, 40C: Central soil gathering plate, 40L: Left side soil gathering plate, 40R: Right side soil gathering plate, 44, 44a, 44b: Working body rotating mechanism, 46a, 46b: Rotating cylinder, 48a: First connecting part, 50a: Second connecting part, 60: Working body rotating arm, 60C: Central working body rotating arm, 60R: Right side Working body rotating arm, 61: Connection part, 70: Connection position adjustment mechanism, 100: Contact member, 110: First contact part, 111: Reinforcing member, 120: Second contact part, 130: Long hole, 140: Connection part, 141: Through hole, 200: Position adjustment member, 210: Tip part, 300: Fixing member, 400: Second locking member, 410: Tip part, 500: Rotating connection member, 501: Main body part, 510 : Intermittent sliding part, 511: 1st area, 513: 2nd area, 520, 530, 540, 591, 630, 640: Connection part, 550: Support column, 560: Support plate, 600: Power source, 610: Cylinder Tube, 620: Piston rod, 700: Connecting rod, 701: 1st area, 703: 2nd area, 710: 1st rod, 711: Stopper installation part, 713: Stopper, 7 15: Connection part, 720: Second rod, 721: Sliding part, 723: Connecting arm, 725: Connection part, 730: Stopper, 740: Elastic member, 900: First locking member, 910: First area, 920: 2nd region, 2410: pedestal, 2420: 1st holding part, 2430: 2nd holding part, 2431: opening, 2450: continuous sliding part

Claims (17)

The first member having the first locking member and
A second member rotatably connected to the first member,
A contact member provided on the second member, slidable with respect to the second member, and abutting on the first locking member in a deployed state.
A position adjusting member that adjusts the position of the contact member in the slide moving direction of the contact member, and a position adjusting member.
A fixing member that fixes the position of the contact member with a member different from the position adjusting member, and
Have,
The contact member is provided with a long hole having a length in the slide moving direction of the contact member and penetrating the contact member.
The fixing member is a connection position adjusting mechanism that penetrates the elongated hole and is fixed to the second member . The connection position adjusting mechanism according to claim 1, wherein the fixing member acts on the abutting member from a direction different from the direction in which the position adjusting member acts on the abutting member. The connection position adjusting mechanism according to claim 2, wherein the fixing member acts on the contact member in a direction from the contact member toward the second member. The first member having the first locking member and
A second member rotatably connected to the first member,
A contact member provided on the second member, slidable with respect to the second member, and abutting on the first locking member in a deployed state.
A position adjusting member that adjusts the position of the contact member in the slide moving direction of the contact member, and a position adjusting member.
A fixing member that fixes the position of the contact member with a member different from the position adjusting member, and
A second locking member provided on the contact member and locked to the first locking member in a deployed state to regulate the rotation of the second member with respect to the first member . Connection position adjustment mechanism to have . A rotary connecting member rotatably connected to one of the first member and the second member and in contact with the other of the first member and the second member.
A power source provided on the first member or the second member to give power to the rotary connecting member, and
A connecting rod that connects the rotary connecting member and the second locking member,
Have more
The rotary connecting member rotates the second member by the power received from the power source, and transmits the power received from the power source to the second locking member via the connecting rod. The connection position adjusting mechanism according to claim 4. The second locking member is rotatably connected to the abutting member.
The other of the first member and the second member
When the second member rotates, it slides with the rotation connecting member in the first region of the rotation connecting member.
When the second locking member rotates and is locked to the first locking member, it slides with the rotary coupling member in a second region of the rotary coupling member different from the first region. , The connection position adjusting mechanism according to claim 5. The connecting position adjusting mechanism according to claim 5 or 6, wherein the connecting rod is expandable and contractible. The connecting rod
With the first rod
A second rod that is slidably connected to the first rod and
A stopper attached to the first rod and restricting the sliding movement of the second rod with respect to the first rod in the direction in which the connecting rod extends.
An elastic member that gives an elastic force in the direction in which the connecting rod extends,
The connection position adjusting mechanism according to any one of claims 5 to 7. The connection position adjusting mechanism according to claim 8, wherein the stopper is detachably attached to the first rod at different positions in the expansion / contraction direction of the connection rod. The first member having the first locking member and
A second member rotatably connected to the first member,
A contact member that is slidable with respect to the second member and abuts on the first locking member in a deployed state.
A position adjusting member that adjusts the position of the contact member in the slide moving direction of the contact member, and a position adjusting member.
A second locking member provided on the contact member and locked to the first locking member in a deployed state to regulate the rotation of the second member with respect to the first member. ,
Connection position adjustment mechanism having. A rotary connecting member rotatably connected to one of the first member and the second member and in contact with the other of the first member and the second member.
A power source provided on the first member or the second member to give power to the rotary connecting member, and
A connecting rod that connects the rotary connecting member and the second locking member,
Have more
The rotary connecting member rotates the second member by the power received from the power source, and transmits the power received from the power source to the second locking member via the connecting rod. The connection position adjusting mechanism according to claim 10. The second locking member is rotatably connected to the abutting member.
The other of the first member and the second member
When the second member rotates, it slides with the rotation connecting member in the first region of the rotation connecting member.
When the second locking member rotates and is locked to the first locking member, it slides with the rotary coupling member in a second region of the rotary coupling member different from the first region. The connection position adjusting mechanism according to claim 11. The connecting position adjusting mechanism according to claim 11 or 12, wherein the connecting rod is expandable and contractible. The connecting rod
With the first rod
A second rod that is slidably connected to the first rod and
A stopper attached to the first rod and restricting the sliding movement of the second rod with respect to the first rod in the direction in which the connecting rod extends.
An elastic member that gives an elastic force in the direction in which the connecting rod extends,
The connection position adjusting mechanism according to any one of claims 11 to 13. The connection position adjusting mechanism according to claim 14, wherein the stopper is detachably attached to the first rod at different positions in the expansion / contraction direction of the connection rod. The connection position adjusting mechanism according to any one of claims 1 to 15.
A first work rotor having a work claw provided on the first member,
A second work rotor having a work claw provided on the second member,
Agricultural work machine with. The connection position adjusting mechanism according to any one of claims 1 to 3, wherein the position adjusting member is movable in the slide moving direction.

Images