JPH0729772Y2 - Work equipment replacement trolley - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a trolley for exchanging work equipment used when attaching or detaching various work equipment to or from a cargo bed such as a farm wagon.

[Prior Art] As a towing vehicle that is used for various purposes such as spraying compost and unloading grass, as shown in FIGS. 4 and 5, a compost spraying device b, grass, etc. are mounted on a rear loading platform a. A farm wagon in which the unloading elevator device c is attached, and a drive force transmission mechanism d for transmitting the drive force transmitted from a universal shaft such as a tractor is provided to the devices b and c attached to the lower part of the loading platform. It has been known.

By the way, in the conventional case, the device b selected according to the purpose,
As a method to attach c etc. to the loading platform, use the front loader in front of the tractor to hang it with a wire rope,
Either a method of hoisting with a chain block in the hangar and adjusting the position by changing the suspension fulcrum of the wire rope or chain block, or a method of changing the stop position of the tow vehicle with respect to the suspended device is adopted. Was there.

[Problems to be Solved by the Invention] However, as a method of installing the devices b, c, etc. at a suitable position with respect to the driving force transmission mechanism d, the above method is accurate,
It is not preferable from the viewpoint of safety and workability, and it has been desired to develop a device for quickly and surely attaching or replacing the device by a simple operation.

[Means for Solving the Problems]

This device is intended to solve the above problems,
Stand jacks are erected on both sides of a trolley that can move close to and away from the farm wagon, and work equipment is engaged with load supporting members provided on both sides of the work equipment at the lifting portions of the stand jacks. Each of the stand jacks is provided with a supporting member for supporting the above, and projecting members fixed to the projecting pieces provided on both sides of the working equipment by locking means such as bolts are vertically movable on the outer circumference of each stand jack. It is provided to constitute a work equipment exchange cart.

[Action]

Since it is possible to properly set the vertical position of the compost spraying device etc. with the stand jack and move the dolly in that state, for example, move the dolly to a suitable position of the cargo bed of the farm wagon and install the device or reverse. It becomes possible to easily and quickly remove the device installed on the cargo bed.

In detail, the support metal fittings provided on the elevating part of each stand jack are engaged with the load supporting members provided on both sides of the work equipment to support the load of the work equipment, and the outer circumference of each stand jack. The projecting member provided so as to be movable in the vertical direction is fixed to projecting pieces provided on both sides of the working device by locking means such as bolts, so that the working device is supported at four points.

That is, since the working equipment is supported by the carriage at four locations by the support fittings and the protruding members provided on the left and right stand jacks respectively, the posture of the work equipment is stable without rocking when supported by the carriage. To do. In this way, the load of the work equipment is supported by the support fittings, and the swing of the work equipment is suppressed by the projecting member, so that the work equipment can be quickly and safely attached to and detached from the farm wagon.

Further, when the projecting member of the stand jack of the exchange cart is fixed to the projecting piece of the work equipment by the locking means such as bolts, the projecting member is movable in the vertical direction along the stand jack. By adjusting the vertical position of the, the work of fixing to the projecting piece on the device side can be performed easily. Further, since the positional deviation of the protruding piece on the working equipment side in the height direction can be allowed, it can be shared by various working equipment having different mounting positions of the protruding piece.

[Embodiment] A preferred embodiment of the present invention will be described below with reference to the accompanying drawings.

As shown in FIG. 1, the exchange trolley 1 is composed of a movable trolley frame 2 and a stand jack 3 supported by the trolley frame 2 to elevate and lower the compost spraying device and the like.

As shown in FIGS. 1 to 3, the bogie frame body 2 is connected to a side portion 5 of a vertical frame member 4 at one end of a horizontal frame member 6 oriented in a direction perpendicular to the vertical frame member 4. At the same time, it is composed of two frames 8 each having casters 7 attached to the lower surface of both longitudinal ends of the vertical frame member 4, and a connecting frame 9 for connecting the other end sides of the horizontal frame members 6, 6 to each other. Any one of the pin holes 10 formed at appropriate intervals in the longitudinal direction of the member 6 is selectively aligned with the pin holes 11, 11 formed at both ends of the connecting frame 9, and the pin holes 10, 11 are formed. Further, by inserting the locking pin 12, the length of the bogie frame body 2 in the width direction can be selectively adjusted.

However, in the embodiment, the vertical frame member 4, the horizontal frame member 6, and the connecting member 9 are formed of members having a rectangular cross section, and the horizontal frame member 6 is substantially the center of the vertical frame member 4 in the longitudinal direction. Installed in position.

On the other hand, the stand jack 3 comprises a first adjusting mechanism 15 and a second adjusting mechanism 25. The first adjusting mechanism 15 includes a locking pin 17 on the upper end side of an outer cylinder 16 which is vertically erected with its lower end connected to the upper surface of the vertical frame member 4 at a substantially central position in the longitudinal direction.
Forming a radial pin hole 18 into which the
A sliding cylinder (19) that is vertically movable in a space (16) is formed with pin holes (20) that are axially spaced and into which the locking pins (17) are inserted. That is, the sliding cylinder with respect to the pin hole 18 of the outer cylinder 16
Select one of the 19 pin holes 20 and align it,
By inserting the locking pin 17 into the selected pin holes 18 and 20, the sliding cylinder 19 is fixed to the outer cylinder 16, and the amount of expansion and contraction can be selectively adjusted.

On the other hand, in the second adjusting mechanism 25, the male screw 27 screwed into the female screw 26 formed on the upper inner peripheral surface of the sliding cylinder 19 has the outer peripheral surface 28.
The screw member 29 formed on the screw member 29, the support fitting 30 screwed to the screw member 29, and the handle 31 integrally fixed to a substantially intermediate position of the screw member 29.

The male screw 27 formed on the screw member 29 is formed such that the upper portion of the handle 31 is a right-hand thread and the lower portion of the handle 31 is a left-hand thread. That is, the rotation of the support bracket 30 is fixed and the handle
When 31 is rotated around the axis, the support fitting 30 and the sliding cylinder 19 are screw-fed so as to be close to and away from each other, and a double screw feed stroke can be earned.

By the way, as shown in FIG. 1, FIG. 4 and FIG. 5, the support metal fitting 30 has a head side shaft portion 36 of a lifting bolt 35 attached to both sides of the compost spreading device b (utility model). Corresponding to the load supporting member in the claims), and a bolt receiver 38 integrally formed therewith so as to receive an axial load applied through a bolt head 36 thereof. In addition, the compost spraying device b is formed on the upper portion of the outer cylinder 16.
Projecting members 42 connected to plate-like positioning members 40 (corresponding to projecting pieces in the scope of utility model registration claims) formed on both sides of the with bolts 41 are provided on the slide cylinder 19 so as to be vertically slidable. ing.

Next, the handling of the exchange cart 1 will be described.

When removing the compost spraying device b installed on the farm wagon a, first, adjust the width of the exchange cart 1 in the width direction by the horizontal frame member 6 and the connecting member 9 to bring the sliding cylinder 19 to an appropriate height. Adjust. Next, while rotating the handle 31 in the extending direction of the screw member 29, the bolt head 38 of the support bracket 40 of the exchange cart 1 is fitted to the bolt head 36 of the composting device b. Next, the positioning member 40 of the compost spraying device b and the protruding member 42 of the exchange cart 1 are connected. After that, the locking means (for example, the bolt nut 50 or the pin shown in FIGS. 4 and 5) between the farm wagon a and the compost spraying device b is released, and the handle 31 is rotated again in the extension direction to spread the compost spraying. The device b is lifted to form a sufficient space between the device b and the bed of the farm wagon a. Next, the farm wagon a is moved forward while the device b is supported by the exchange cart 1 in this manner (the exchange cart 1 may be moved backward), and the compost spraying device b and the farm wagon a may be moved. Cut it off completely.

Therefore, it is possible to disconnect the device safely, surely, and quickly.

Next, the farm wagon a is moved to another exchange trolley 1 to which the elevator device c for grass and the like is attached, the device is fixed to the farm wagon in the reverse order of the above separation, the device and the exchange trolley are separated, and the device exchange is performed. To finish.

During the work, the stand jack 3 is independently moved to make fine adjustments in mounting and dismounting.

[Effect of device]

As is clear from the above description, the exchanging dolly for working equipment according to the present invention exhibits the following excellent effects.

(1) Since the load of the work equipment is supported by the left and right support fittings, and the swing of the work equipment is suppressed by the left and right projecting members, the work equipment can be stably locked at four locations. Therefore, it is possible to safely, reliably and swiftly install and remove the work equipment such as the composting device on the farm wagon in a stable state without rocking.

(2) Since the projecting member is movable in the vertical direction along the stand jack, when the projecting member of the stand jack of the exchange cart is fixed to the projecting piece of the working equipment by a locking means such as a bolt, the projecting member projects. By adjusting the vertical position of the member along the stand jack, it is possible to easily perform the fixing work with the projecting piece on the device side. Further, since the positional deviation of the protruding piece on the working equipment side in the height direction can be allowed, it can be shared by various working equipment having different mounting positions of the protruding piece.

[Brief description of drawings]

FIG. 1 is a front view showing a preferred embodiment of the present invention, FIG. 2 is a detailed view of an essential part of FIG. 1, FIG. 3 is a detailed perspective view of an essential part of FIG. 1, FIG. 4 and FIG. FIG. 6 is a side view showing a work device attached to a farm wagon. In the figure, a is a farm wagon bed, b is a working device such as a composting device, 1 is an exchange cart, 3 is a stand jack, 30
Is a support fitting, 36 is a head side shaft of a bolt as a load supporting member, 40 is a positioning member as a protruding piece, 42 is a protruding member,
50 is a bolt nut as a locking means.

Claims (1)

[Scope of utility model registration request] 1. A replacement truck for exchanging working equipment such as a composting device attached to a farm wagon, in which stand jacks are erected on both sides of a truck that can move close to and away from the farm wagon. The lifting and lowering parts of the stand jack are respectively provided with supporting metal fittings that are engaged with load supporting members provided on both sides of the work equipment to support the work equipment, and both sides of the work equipment are provided on the outer circumference of each stand jack. A bogie for exchanging work equipment, characterized in that a projecting member fixed to a projecting piece provided on the above by a locking means such as a bolt is provided so as to be vertically movable.