JP2017081672A - Check stopper and conveyor device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a check stopper capable of suppressing a load of an object to be transported applied to a lifting part for lifting up and down the check stopper when movement of the object to be transported is inhibited, and capable of moving to a direction of inhibiting movement of the object, and a conveyor device.SOLUTION: A check stopper 20 comprises: a stopper body 30 for inhibiting movement of an object 1 in a reverse direction; a lifting device 40 for lifting up and down the stopper body 30; and a first mechanical stopper 22 for inhibiting rotation of the stopper body 30, in which a centroid of the stopper body 30 is deflected to one end side. A side to which the centroid is deflected, has an engagement part 32 and a protrusion 34, and a side different from the side to which the centroid is deflected, has an inhibition part 33. In a state in which the engagement part 32 is held at a lower side of the transport plane H of the object 1 by deflection of the centroid, and the lifting device 40 contacts the protrusion 34, when the protrusion 34 is raised, the engagement part 32 is raised to an upper side of the transport plane H of the object 1, and when the first mechanical stopper 22 inhibits the inhibition part 33, the engagement part 32 is held at an upper side of the transport plane H of the object 1, in the check stopper.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a check stopper that prevents movement of a transported object in a reverse direction at a predetermined position on a transport path of the transported object.

  2. Description of the Related Art Conventionally, in a conveyor device that conveys an article, the article conveyed to the end of the conveyor device may be carried out of the conveyor device to another place by a transfer device such as a forklift. At this time, the conveyed article may be pushed by the transfer device and pushed back in the direction opposite to the conveying direction of the conveyor device. In order to prevent the article from being pushed back in the reverse direction, the movement of the article in the conveyance direction of the conveyor device is allowed, but the movement in the direction opposite to the conveyance direction of the article is prevented. A check stopper may be provided.

  As shown in Patent Document 1, the conventional check stopper has a stopper portion that protrudes from the conveying surface of the conveyor device by raising and lowering a stopper portion that prevents movement of the article in the reverse direction by an actuator or a spring. Yes.

JP 2002-46830 A

  However, the conventional check stopper using the actuator (elevating part) prevents the movement of the article in the stopper part directly connected to the actuator (elevating part). The load of the article applied to the part is also applied to the actuator (elevating part) as it is. Therefore, there is a problem that the actuator (elevating part) is easily damaged. In addition, the conventional check stopper using a spring (lifting / lowering part) cannot intentionally contract the spring (lifting / lowering part) to lower the stopper part. There was a problem that it could not be moved intentionally in the direction of

  Therefore, the present invention suppresses the load of the conveyed object that is applied to the lifting and lowering unit that raises and lowers the check stopper when the movement of the conveyed object is prevented, and moves the article in the reverse direction (the direction that prevents the movement of the article). An object of the present invention is to provide a check stopper and a conveyor device that can be intentionally performed.

  The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.

That is, the check stopper according to claim 1 of the present invention is provided on the transport path of the transported object and allows the transported object to move in the transport direction, but in the transport direction of the transported object. A non-return stopper that prevents movement in the reverse direction, and is provided so as to be rotatable by a rotation shaft, and the movement of the conveyed object in the reverse direction is prevented by locking the conveyed object. A stopper part, a raising / lowering part that raises and lowers the stopper part in a direction perpendicular to the conveyance surface of the object to be conveyed, and a first restriction part that inhibits the rotation of the stopper part. A bending member that bends from one end to the other end, the center of gravity of the bending member being biased toward one end of the bending member, and formed on the side of the center of gravity that is biased to lock the object to be conveyed. The locking portion is formed on a side different from the side where the center of gravity is biased. A restraining portion that is restrained by the first restraining portion; and a contact portion that is formed on a side where the center of gravity is biased and abuts against the lifting portion. The holding part is held at a position below the transfer surface of the transfer object, and the abutting part is raised in a state in which the elevating part is in contact with the abutting part. The stop portion is raised to a position above the transport surface of the object to be transported, and the first restraining portion restrains the stop portion, so that the locking portion is held at a position above the transport surface of the transport object. Is.
In the above configuration, the locking part is raised in a state where the lifting part is in contact with the contact part of the stopper part, and the first stopping part stops the stopping part of the stopper part, so that the locking part is It is held at a position above the transport surface. On the other hand, when the elevating part does not raise the locking part, the locking part is held at a position below the transport surface of the object to be transported.

According to a second aspect of the present invention, in the check stopper according to the first aspect, the locking portion of the stopper portion descends to a position below the conveyance surface of the object to be conveyed due to the deviation of the center of gravity of the stopper portion. In this case, the stopper portion is provided with a second stopping portion that stops the stopping portion of the stopper portion at a position below the transfer surface of the object to be transferred.
In the above configuration, when the locking portion of the stopper portion is lowered to a position below the conveyance surface of the conveyed object due to the deviation of the center of gravity of the stopper portion, the stopper portion of the stopper portion is held at a position below the conveyance surface of the conveyance object. Is done.

According to a third aspect of the present invention, in the check stopper according to the first or second aspect, the contact portion of the stopper portion is provided in the vicinity of the rotating shaft and on the side where the center of gravity is biased. Is.
In the above configuration, the abutting portion provided in the vicinity of the rotation shaft and on the side where the center of gravity is biased in the stopper portion is moved up and down by the lifting portion.

According to a fourth aspect of the present invention, in the check stopper according to any one of the first to third aspects, the elevating portion is configured such that a portion that contacts the contact portion of the stopper portion is a rotating body. It is what is done.
In the above configuration, the elevating part raises the locking part in a state where the rotating body is in contact with the contact part of the stopper part.

The invention according to claim 5 is a conveyor device for transporting a transported object along a transport path, and allows movement of the transported object in the transport direction, but with respect to the transport direction of the transported object. A check stopper that prevents movement in the reverse direction is provided on the transfer path, and the check stopper is provided on the transfer path of the transfer object, and allows the transfer of the transfer object in the transfer direction. A non-return stopper for preventing movement of the object to be conveyed in a direction opposite to the conveying direction, wherein the stopper is rotatably provided by a rotation shaft, and the object to be conveyed is locked by locking the object to be conveyed. A stopper for preventing the object from moving in the reverse direction; a lifting / lowering part for raising and lowering the stopper in a direction perpendicular to the conveying surface of the object to be conveyed; and a first stopping part for restricting the rotation of the stopper. The stopper portion is folded from one end to the other end. A bending member that bends, the center of gravity of the bending member being biased toward one end of the bending member, the locking portion that is formed on the side of the center of gravity that is biased and that holds the object to be transported, and the center of gravity is biased A restraining portion formed on a side different from the side and restrained by the first restraining portion, and a contact portion formed on a side where the center of gravity is biased and abutting against the lifting portion, The holding portion is held at a position below the conveyance surface of the object to be conveyed, and the abutting portion is raised in a state where the elevating portion is in contact with the abutting portion. The locking part is raised to a position above the transport surface of the object to be transported, and the first restraining part restrains the restraining part, so that the latching part becomes the object to be transported. Is held at a position above the transport surface.
In the above configuration, the locking part is raised in a state where the lifting part is in contact with the contact part of the stopper part, and the first stopping part stops the stopping part of the stopper part, so that the locking part is It is held at a position above the transport surface. On the other hand, when the elevating part does not raise the locking part, the locking part is held at a position below the transport surface of the object to be transported.

  According to the check stopper and the conveyor device of the present invention, the stopper part and the restraining part are separated from the elevating part, and the load caused by the conveyed object when the check stopper prevents the movement of the conveyed object. Since it is received by the stopping part separated from the lifting part, the load due to the conveyed object is not directly applied to the lifting part. For this reason, it is possible to prevent the lifting part from being damaged by the load of the transported object. Also, when the article is intentionally moved in the reverse direction (the direction that prevents the movement of the article) because the locking portion is held at a position below the conveyance surface of the article to be conveyed due to the deviation of the center of gravity of the stopper part. But it can be easily handled.

It is a side view of a conveyor apparatus provided with the non-return stopper which concerns on this invention. It is a perspective view of the non-return stopper which concerns on this invention. It is a side view of the non-return stopper which concerns on this invention. It is a top view of the non-return stopper which concerns on this invention. It is a side view of the stopper main body of the non-return stopper which concerns on this invention. It is a figure which shows operation | movement of the non-return stopper which concerns on this invention. It is a perspective view of the non-return stopper of another Example which concerns on this invention. It is a side view of the non-return stopper of another Example which concerns on this invention. It is a perspective view of the non-return stopper of another Example which concerns on this invention.

The check stopper 20 and the conveyor apparatus 10 according to the present invention will be described.
As shown in FIG. 1, the conveyor device 10 includes an automatic warehouse (not shown) for storing an article 1 (an example of “conveyed object”), loading of the article 1 into a transport vehicle (not shown), or the like. The article 1 is transported between a cargo handling work facility 2 that loads and unloads the article 1 from a transport vehicle (not shown) or the like. One end of the conveyor device 10 is provided in the cargo handling work facility 2. At one end of the conveyor device 10, an article stop position S where the article 1 is stopped to transfer the article 1 to the forklift 3 on the cargo handling facility 2 is provided.
The conveyor device 10 is a roller conveyor in which a plurality of transport rollers 11 are rotatably provided along a transport path 12, and the article 1 is placed and transported by the transport action of the transport rollers 11. The conveyor device 10 is configured to be able to be driven in forward and reverse directions in order to transfer the articles 1 conveyed from the automatic warehouse to the forklift 3 and to convey the articles 1 transferred from the forklift 3 to the automatic warehouse. Yes.

  The conveyor device 10 is provided with a check stopper 20 that allows the article 1 to move in the conveyance direction K but prevents the article 1 from moving in the opposite direction to the conveyance direction K. Specifically, the check stopper 20 moves the article 1 to the forklift 3 in the conveyance direction K (an example of “conveyance direction of the object to be conveyed”) when the article 1 is transferred from the conveyor device 10 to the forklift 3. Although movement is allowed, the direction in which the article 1 is pushed away from the forklift 3 by the fork of the forklift 3 (an example opposite to the conveyance direction K of the article 1 and “reverse to the conveyance direction of the article to be conveyed”) Stop moving to. The check stopper 20 is provided on the conveying path 12 of the article 1 on the one end side of the conveyor device 10. Specifically, the check stopper 20 is provided at a position away from the end of the conveyor device 10 by a predetermined distance so as to face one side surface of the transport roller 11 of the conveyor device 10. Here, the predetermined distance is a distance determined by the size of the article 1 conveyed to the conveyor device 10 (specifically, the size of a pallet or the like on which the article 1 is placed).

As shown in FIGS. 2 to 4, the check stopper 20 includes a base 21 and a stopper main body 30 (an example of a “stopper portion”) provided to face one side surface of the transport roller 11 in the conveyor device 10. The elevating device 40 (an example of “elevating part”), a first mechanical stopper 22 (an example of “first restraining part”), and a second mechanical stopper 25 (an example of “second restraining part”).
The base 21 is a member that supports each component of the check stopper. The base 21 is provided at a position facing one side surface of the transport roller 11 and below the transport surface H (FIG. 6) of the articles 1 in the conveyor device 10. The base 21 supports the stopper body 30, the lifting device 40, the first mechanical stopper 22, and the second mechanical stopper 25.
The base 21 includes a rotation shaft 31 and supports the stopper body 30 via the rotation shaft 31 so as to be rotatable. The rotation shaft 31 is provided in a direction orthogonal to the horizontal direction with respect to the conveyance direction K of the article 1 in the conveyor device 10.
As shown in FIG. 5, the stopper main body 30 is a plate-like bending member that bends from one end to the other end. The stopper body 30 is pivotally supported by the rotation shaft 31. In the stopper main body 30, a region where the bending member is long in the width direction is formed in a region on one side centering on the rotation shaft 31, and a region where the bending member is short in the width direction is the rotation shaft 31. It is formed in the region on the other side as the center. That is, the stopper main body 30 is formed such that the area in one side centered on the rotation shaft 31 is larger than the area in the other side region centered on the rotation shaft 31. For this reason, the center of gravity of the stopper body 30 is biased toward one end side of the bending member (a region on one side centered on the rotation shaft 31), and the stopper body 30 rotates toward the one end side around the rotation shaft 31. Held.
The stopper main body 30 prevents movement in the direction opposite to the conveyance direction K of the article 1 in the conveyor device 10. Specifically, the stopper main body 30 prevents the movement of the article 1 in the direction in which the article 1 is pushed by the fork of the forklift 3 and moves away from the forklift 3 (the direction opposite to the conveyance direction K of the article 1).
The stopper body 30 has a region where the center of gravity is biased (a region on one side centered on the rotation shaft 31) as a locking portion 32 that locks the article 1. The movement of the article 1 is prevented when one end face of the article 1 (the end face which is the rear end with respect to the conveyance direction K of the article 1) abuts.

In the stopper main body 30, a region different from the side on which the center of gravity is biased (the region on the other side around the rotation shaft 31) is a restraining portion 33 that is restrained by the first mechanical stopper 22 and the second mechanical stopper 25.
The stopper main body 30 abuts on the first mechanical stopper 22 on a first abutting surface 33a which is one end surface of the restraining portion 33 and is formed in parallel with the one end surface 32a of the locking portion 32 in the same direction. Further, the stopper main body 30 contacts the second mechanical stopper 25 at a second contact surface 33b which is the other end surface of the restraining portion 33 and is formed in parallel with the one end surface 32a of the locking portion 32 in the opposite direction. .
As shown in FIGS. 2 to 5, the stopper body 30 is provided with a protrusion 34 (an example of a “contact portion”) for the lifting device 40 to lift and lower the stopper body 30 in the locking portion 32. In other words, a portion (protrusion 34) on which the lifting device 40 acts on the stopper body 30 is provided in a region where the center of gravity is biased in the stopper body 30 (a region on one side centered on the rotation shaft 31). The protrusion 34 is formed in a cylindrical shape, and protrudes in the axial direction of the rotation shaft 31 from the surface of the stopper main body 30 opposite to the side facing the conveying roller 11. The protrusion 34 is provided in the vicinity of the rotation shaft 31 and is disposed in parallel with the rotation shaft 31. In other words, the protrusion 34 is an area on the stopper body 30 on the side where the center of gravity is biased (area of the locking portion 32), and is disposed at a position on the rotating shaft 31 side. By providing the protrusion 34 in the vicinity of the rotation shaft 45, the stopper main body 30 is raised and lowered from the vicinity of the rotation shaft 31 (on the rotation shaft 31 side).

The elevating device 40 elevates and lowers the stopper body 30 in the direction perpendicular to the conveyance surface H of the article 1. Specifically, the elevating device 40 raises and lowers the locking portion 32 of the stopper body 30 in the vertical direction by raising and lowering the protrusion 34 of the stopper body 30. The lifting device 40 is mainly composed of a solenoid 41 and a lifting rod 42.
The solenoid 41 is a drive source for moving the lifting rod 42 up and down. The solenoid 41 is provided on the base 21 on the side of the stopper body 30 and below the protrusion 34.
The raising / lowering rod 42 is a part which raises / lowers the latching | locking part 32 of the stopper main body 30. As shown in FIG. The elevating rod 42 is formed by a pair of rods. The elevating rod 42 moves up and down in the upper part of the solenoid 41 by driving the solenoid 41. A roller 44 is pivotally supported at the tip of the lifting rod 42.
The roller 44 is a rotating body fixed to a rotating shaft 45 that is rotatably supported by the elevating rod 42. The roller 44 comes into contact with the tip portion of the protrusion 34 when the locking portion 32 of the stopper main body 30 is moved up and down. That is, the lifting device 40 is provided separately from the stopper main body 30. The roller 44 is disposed below the protrusion 34 of the stopper portion and orthogonal to the protrusion 34.

The first mechanical stopper 22 is a plate-like member extending in the vertical direction. The first mechanical stopper 22 restrains the restraining portion 33 of the stopper body 30 at a position perpendicular to the conveyance surface H of the article 1 when the lifting device 40 raises the locking portion 32 of the stopper body 30. is there. The first mechanical stopper 22 is provided on a path along which the restraining portion 33 rotates. The first mechanical stopper 22 contacts the first contact surface 33 a of the stop portion 33 at a position where the stop portion 33 is perpendicular to the conveyance surface H of the article 1. Accordingly, the stopper main body 30 is held at a position where the one end surface 32 a of the locking portion 32 is perpendicular to the conveyance surface H of the article 1.
The second mechanical stopper 25 is a protruding member that protrudes perpendicular to the base 21. The second mechanical stopper 25 is configured to restrain the restraining portion 33 of the stopper body 30 at a position below the conveying surface H of the article 1 when the stopper body 30 rotates due to the deviation of the center of gravity. The second mechanical stopper 25 is provided so as to be orthogonal to the path along which the stopping portion 33 rotates. The second mechanical stopper 25 abuts on the second abutment surface 33 b of the restraining portion 33 at a position where the locking portion 32 is positioned below the conveying surface H of the article 1. Thereby, the stopper main body 30 is held at a position below the conveying surface H of the article 1.

Next, the operation of the check stopper 20 will be described.
As shown in FIG. 6A, the check stopper 20 is configured so that the stopper main body 30 has a direction in which one end surface 32a of the locking portion 32 faces downward due to the deviation of the center of gravity (conveying direction K, opposite in FIG. 6). (Clockwise direction) and is positioned below the conveying surface H of the article 1 in the conveyor device 10. At this time, the restraining portion 33 rises toward a position above the transport surface H of the article 1, but the rise is restrained by the second abutment surface 33 b abutting against the second mechanical stopper 25. For this reason, the stopper main body 30 (the locking portion 32 and the restraining portion 33) is held at a position below the conveying surface H of the article 1. And the conveyance of the articles | goods 1 in the conveyor apparatus 10 is attained from both directions (a conveyance direction K and the reverse direction to the conveyance direction K).
As shown in FIG. 6B, the check stopper 20 raises the lifting rod 42 by driving a solenoid 41 of the lifting device 40 by a controller (not shown). Then, the roller 44 that is pivotally supported by the elevating rod 42 contacts the protrusion 34 of the stopper main body 30.
As shown in FIG. 6C, the check stopper 20 further raises the lifting rod 42 to lift the protrusion 34 upward while the roller 44 is in contact with the protrusion 34. Thereby, the latching | locking part 32 of the stopper main body 30 raises, and the stop part 33 of the stopper main body 30 falls. And the latching | locking part 32 of the stopper main body 30 becomes a position above the conveyance surface H of the articles | goods 1 in the conveyor apparatus 10. FIG.
As shown in FIG. 6D, the check stopper 20 is configured such that the first mechanical stopper 22 stops the stop portion 33 of the stopper body 30 (the first contact surface 33a of the stop portion 33 is the first mechanical stop 22). The locking portion 32 of the stopper body 30 is held at a position above the conveying surface H of the article 1. At this time, the one end surface 32 a of the locking portion 32 of the stopper main body 30 is held so as to be perpendicular to the conveying surface H of the article 1 in the conveyor device 10.
The non-return stopper 20 is a locking portion 32 of the stopper main body 30 and stops the article 1 at one end surface 32a above the conveying surface H of the article 1 in the conveyor device 10. At this time, the one end surface of the article 1 abuts against the one end face 32 a of the locking portion 32, so that the load of the article 1 is applied to the stopper body 30 and the first mechanical stopper 22 that stops the stopping portion 33 of the stopper body 30. It takes. On the other hand, the lifting device 40 is separated from the stopper body 30 only by the roller 44 of the lifting rod 42 being in contact with the protrusion 34 of the stopper body 30, so that the article 1 hanging on the locking portion 32 of the stopper body 30. Is not directly applied to the lifting device 40 (the lifting rod 42). Moreover, since the part which contact | abuts the latching | locking part 32 of the stopper main body 30 is the roller 44 which is a rotary body, the load of the articles | goods 1 can be released to the stopper main body 30 side.

As described above, in the check stopper 20 and the conveyor device 10, the stopper main body 30, the first mechanical stopper 22, and the lifting device 40 are separated, and the check stopper 20 prevents the article 1 from moving. Since the load by the article 1 is received by the first mechanical stopper 22, the load by the article 1 is not directly applied to the lifting device 40. Therefore, damage to the lifting device 40 due to the load of the article 1 can be prevented.
In the check stopper 20 and the conveyor device 10, the protrusion 34 of the stopper main body 30 (the portion of the stopper main body 30 that makes contact with the lifting device 40) is an area of the locking portion 32 of the stopper main body 30 and is on the rotating shaft 31 side. Accordingly, the movable range of the elevating rod 42 of the elevating device 40 can be narrowed (the distance by which the elevating rod 42 of the elevating device 40 elevates and lowers the stopper body 30) can be reduced. Therefore, the installation space for the lifting device 40 can be reduced, and the check stopper 20 itself can be reduced in size.
In the check stopper 20 and the conveyor apparatus 10, the load that is caused by the article 1 when the check stopper 20 prevents the movement of the article 1 is configured by forming a portion that contacts the locking portion 32 of the stopper body 30 with the roller 44. Can be easily released to the stopper main body 30 side. Therefore, the load is not applied to the lifting device 40, and damage to the lifting device 40 due to the load can be prevented.

In the present embodiment, the configuration of the check stopper 20 is not limited, and a check stopper 20A of another example as shown in FIGS. 7 and 8 may be used.
The non-return stopper 20A of another embodiment includes a base 21A, a stopper main body 30A (an example of a “stopper”), an elevating device 40A (an example of an “elevating part”), and a first mechanical stopper 22A (an “restraining part”). For example).
The stopper main body 30A of the check stopper 20A according to another embodiment is different in shape from the stopper main body 30 of the check stopper 20. Specifically, the stopper main body 30A of the check stopper 20A is formed so that the area of the locking part 32A is narrower than the area of the stopping part 33A. Further, the stopper main body 30A has a weight attached to the locking portion 32A in order to bias its center of gravity toward the locking portion 32A. In the check stopper 20A, the roller 44A of the lifting device 40A is lifted and lowered in a state where it is in contact with the lower end surface in the vicinity of the rotation shaft 31A in the region of the locking portion 32A of the stopper main body 30A, thereby locking the locking portion 32A. Is moved up and down around the rotation shaft 31A. That is, the stopper main body 30A is not provided with the protrusion 34 on the stopper main body 30 of the check stopper 20, and the locking portion 32A also serves as a contact portion that contacts the roller 44A of the lifting device 40A.
In the present embodiment, one check stopper 20 is provided on the side of the conveyor device 10 (conveying roller 11). However, the present invention is not limited to this. For example, one check stopper 20 is provided. May be provided at the center of the conveyor device 10. Further, as shown in FIG. 9, two or more check stoppers 20 may be provided on both sides of the conveyor device 10 (conveying roller 11). In this case, the stopper main bodies 30 of the pair of check stoppers 20 may be connected by the connecting member 50 and the pair of check stoppers 20 may be interlocked. Furthermore, the connecting member 50 may be formed of a member such as a weight, and the connecting member 50 may bias the center of gravity of the stopper main body 30 toward one end (the locking portion 32 side).
In the present embodiment, the conveyor device 10 is configured by a roller conveyor, but is not limited thereto, and may be configured by, for example, a belt conveyor.
In the present embodiment, the check stopper 20 is provided at the end of the conveyor device 10 between the automatic warehouse and the cargo handling work facility 2, but is not limited thereto. The article 1 may be a place where movement in the direction opposite to the conveyance direction should be prevented.
In the present embodiment, the stopper main body 30 is held at a position below the conveying surface H of the article 1 by restraining the second mechanical stopper 25. However, the present invention is not limited to this, and the second mechanical stopper 25 is provided. Instead, the stopper body 30 may be held at a position below the conveyance surface H of the article 1 by adjusting the center of gravity of the stopper body 30.
In the present embodiment, in the lifting device 40, the portion that contacts the protrusion 34 of the stopper main body 30 is configured by the roller 44. However, the present invention is not limited to this, and the protrusion is in contact with the protrusion 34. As long as the configuration can raise 34, for example, a projection-shaped member that can contact the projection 34 may be used.

1 Goods (conveyed items)
DESCRIPTION OF SYMBOLS 10 Conveyor apparatus 12 Conveyance path 20 Check stopper 22 1st mechanical stopper (1st control part)
25 Second mechanical stopper (second stop)
30 Stopper body (Stopper part)
31 Rotating shaft 32 Locking portion 33 Stopping portion 34 Protrusion (contact portion)
40 Lifting device (lifting unit)
44 Roller (Rotating body)
H Conveyance surface of goods (conveyance surface of objects to be conveyed)
K transport direction (conveyance direction of the object to be transported)

Claims (5)

A non-return stopper provided on a transport path of the transported object, allowing movement of the transported object in the transporting direction, but preventing movement of the transported object in the reverse direction;
A stopper provided so as to be pivotable by a pivot shaft, and blocking the transported object in a reverse direction by locking the transported object;
An elevating part that raises and lowers the stopper part in a direction perpendicular to the conveying surface of the object to be conveyed;
A first stop portion for stopping rotation of the stopper portion;
With
The stopper portion is
A bending member that bends from one end to the other end, the center of gravity of the bending member being biased toward one end of the bending member;
A locking portion that is formed on the side where the center of gravity is biased and locks the object to be conveyed;
A restraining portion formed on a side different from the side where the center of gravity is biased and restrained by the first restraining portion;
An abutting portion formed on the side where the center of gravity is biased and in contact with the elevating part;
Have
Due to the bias of the center of gravity, the locking portion is held at a position below the transport surface of the transported object,
By raising the abutting part in a state where the elevating part abuts on the abutting part, the abutting part is pivoted about the pivot shaft, and the locking part is above the conveying surface of the object to be conveyed. Raised to position,
The non-return stopper, wherein the first restraining portion restrains the restraining portion, whereby the latching portion is held at a position above the transport surface of the transported object. When the locking portion of the stopper portion descends to a position below the conveyance surface of the object to be conveyed due to the deviation of the center of gravity of the stopper portion, the stopper portion of the stopper portion is positioned below the conveyance surface of the object to be conveyed. The non-return stopper according to claim 1, further comprising a second stop portion that stops at the second stop portion. The check stopper according to claim 1, wherein the contact portion of the stopper portion is provided in the vicinity of the rotation shaft and on the side where the center of gravity is biased. The non-return stopper according to any one of claims 1 to 3, wherein a part of the elevating part that is in contact with a contact part of the stopper part is constituted by a rotating body. A conveyor device for transporting a transported object along a transport path, wherein the transported object is allowed to move in the transport direction, but the transported object is prevented from moving in a direction opposite to the transport direction. A stop stopper is provided on the transport path,
The check stopper is
A non-return stopper provided on a transport path of the transported object, allowing movement of the transported object in the transporting direction, but preventing movement of the transported object in the reverse direction;
A stopper provided so as to be pivotable by a pivot shaft, and blocking the transported object in a reverse direction by locking the transported object;
An elevating part that raises and lowers the stopper part in a direction perpendicular to the conveying surface of the object to be conveyed;
A first stop portion for stopping rotation of the stopper portion;
With
The stopper portion is
A bending member that bends from one end to the other end, the center of gravity of the bending member being biased toward one end of the bending member;
A locking portion that is formed on the side where the center of gravity is biased and locks the object to be conveyed;
A restraining portion formed on a side different from the side where the center of gravity is biased and restrained by the first restraining portion;
An abutting portion formed on the side where the center of gravity is biased and in contact with the elevating part;
Have
Due to the bias of the center of gravity, the locking portion is held at a position below the transport surface of the transported object,
By raising the abutting part in a state where the elevating part abuts on the abutting part, the abutting part is pivoted about the pivot shaft, and the locking part is above the conveying surface of the object to be conveyed. Raised to position,
The conveyor device, wherein the first restraining portion restrains the restraining portion, whereby the locking portion is held at a position above the transport surface of the object to be transported.

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