JP2020193055A - Transfer assist device - Google Patents

Abstract

To provide a transfer assist device adapted to alleviate the burden of an operator in transferring an object-to-be-carried onto a workbench from a terminal end of a carrier.SOLUTION: A transfer assist device 20 comprises a seesaw 22, a carriage 30, a pedal 35 and a drive mechanism 40. At least a part of the seesaw 22 is arranged between the carrier 10 and the workbench 13. The seesaw 22 has an end closer to the carrier 10 as an upstream end 24, and has an end closer to the workbench 13 as a downstream end 25. The carriage 30 has a loader 32 for resting an object-to-be-carried A, and moves between the upstream end 24 and the downstream end 25 by rolling over the seesaw 22. The pedal 35 is provided to ascend/descend oppositely to the carrier 10 across the seesaw 22. The drive mechanism 40 swings the seesaw 22 such that it becomes a first inclination state higher at the upstream end 24 than the downstream end 25 in accordance with descending of the pedal 35, and a second inclination state lower at the upstream end 24 than the downstream end 25 in accordance with ascending of the pedal 35.SELECTED DRAWING: Figure 1

Description

The present invention relates to a remounting assisting device that assists the remounting work of a transported object sent by a transporting device such as a conveyor on a workbench.

In the manufacturing line of products such as bumpers for automobiles, for example, as described in Patent Document 1, manufactured products, intermediate products in the middle of manufacturing, etc. are transported as objects to be transported by a transport device such as a conveyor. To. The object to be transported to the terminal portion by the transport device is placed by an operator on a workbench separated from the terminal portion to the downstream side in the transport direction for inspection or transportation to another production line. May be replaced.

Japanese Unexamined Patent Publication No. 1-257684

However, when a worker standing on the opposite side of the workbench with the workbench sandwiching the workbench and transferring the object to be transported on the end portion to the workbench, he reaches out to the end portion above the workbench. That is, it is necessary to lean forward and grasp the object to be transported, and the posture of bending forward is taken. In addition, the above work is repeated. Therefore, there is a problem that the burden on the worker becomes large.

The present invention has been made in view of such circumstances, and an object of the present invention is to reduce the burden on the operator when transferring the object to be transported from the terminal portion of the transport device to the workbench. The purpose is to provide a replacement assist device.

The remounting assisting device that solves the above problems assists the work of remounting the object to be transported to the terminal portion by the transporting portion of the transporting device on a workbench separated from the terminal portion to the downstream side in the transporting direction. A replacement auxiliary device, at least a part of itself, which is arranged between the transport device and the workbench, has an end on the transport device side as an upstream end, and an end on the workbench side. It has a seesaw having a downstream end portion and a mounting portion on which the object to be transported is placed, and by rolling on the seesaw, it moves between the upstream end portion and the downstream end portion. A first portion in which the upstream end portion is higher than the downstream end portion in response to a carriage, a pedal provided so as to be able to move up and down on the side opposite to the transport device across the seesaw, and the pedal being lowered by a stepping operation. The seesaw is provided with a drive mechanism that swings the seesaw so that the seesaw is in an inclined state and in a second inclined state in which the upstream end portion is lower than the downstream end portion in response to the ascent of the pedal.

According to the above configuration, when the seesaw is tilted with respect to the horizontal plane, the dolly on the seesaw moves toward the lower of the upstream end and the downstream end by rolling on the seesaw. ..

On the other hand, when the pedal is depressed and lowered, the seesaw is swung by the drive mechanism so that the upstream end portion is in the first inclined state higher than the downstream end portion. Further, when the pedal is raised, the seesaw is swung by the drive mechanism so that the upstream end portion is in the second inclined state lower than the downstream end portion.

Therefore, when the object to be transported to the end of the transport section is mounted on the mounting section of the trolley located at the upstream end of the seesaw and the pedal is depressed to lower the object, the seesaw is lowered. The seesaw is swung so as to be in the first inclined state. The dolly on which the object to be transported is placed on the mounting portion moves toward the downstream end portion by rolling on the seesaw. Therefore, the operator can transfer to the workbench without reaching to the end portion above the workbench, that is, without leaning forward. The operator does not have to take a forward-bent posture with his / her hips bent when transferring the object to be transported.

When the pedal is lifted after the object to be transported is placed on the workbench, the seesaw is swung so as to be in the second tilted state according to the lift. By rolling on the seesaw, the dolly moves to the upstream end, which is lower than the downstream end.

According to the above-mentioned transfer assist device, it is possible to reduce the burden on the operator when transferring the object to be transported from the terminal portion of the transfer device to the workbench.

In one embodiment, a schematic configuration diagram showing a state of a remounting assisting device before the pedal is depressed. In one embodiment, a schematic configuration diagram showing a state of a remounting assisting device immediately after a pedal depression operation is started. In one embodiment, a schematic configuration diagram showing a state of a remounting assist device in which the pedal is further depressed and the pedal is held at the lower end of the movable range by the holding mechanism. In one embodiment, a schematic configuration diagram showing a state of a remounting assisting device when the holding of the pedal is released by the release mechanism. In one embodiment, a schematic configuration diagram showing a state of a remounting assist device in which the pedal has begun to rise. In one embodiment, a schematic configuration diagram showing a state of a remounting assist device in which the pedal is raised to the upper end of the movable range.

Hereinafter, an embodiment of the remounting assist device will be described with reference to the drawings.
In FIG. 1, a part of a transport device 10 and a workbench 13 in a manufacturing line of a product such as an automobile bumper are shown by alternate long and short dash lines.

The transport device 10 transports a manufactured product, an intermediate product in the middle of manufacturing, or the like as an object A to be transported, and is composed of, for example, a conveyor. The transport device 10 has a transport unit 11 at its upper end that transports the object to be transported A with the direction from right to left in FIG. 1 as the transport direction. In FIG. 1, only the terminal portion 11e of the transport portion 11 is shown.

The workbench 13 is provided for inspecting the object to be transported A and for transporting the object to be transported A to another production line. The workbench 13 is arranged at a position separated from the terminal portion 11e of the transport device 10 toward the downstream side in the transport direction. The workbench 13 has a workbench 14 at its upper end, which is a place where the inspection work and the work for transporting to another production line are performed.

In the production line, the worker W performs a work of remounting the object to be transported A transported to the terminal portion 11e on the workbench 13. This work is performed in a posture in which the worker W stands toward the workbench 13 and the transfer device 10 at a position on the opposite side of the workbench 13 from the transfer device 10. The remounting assisting device 20 of the present embodiment is for assisting the remounting work of the transported object A performed by the worker W.

The outer shell portion of the remounting assist device 20 is composed of a frame (not shown). The lower end of the frame is composed of a base 21 that is immovably arranged. The remounting assist device 20 includes a seesaw 22, a carriage 30, a pedal 35, and a drive mechanism 40.

When the direction of each part in the transfer assist device 20 is specified based on the transport direction of the object A to be transported by the transport unit 11, the upstream side in the same transport direction is simply referred to as "upstream side", "upstream", or the like. , The downstream side in the transport direction is simply referred to as "downstream side", "downstream" and the like.

The seesaw 22 has a pair of rails 23 extending in the transport direction. Both rails 23 are arranged above the base 21 and parallel to each other in a direction orthogonal to the paper surface. The seesaw 22 is arranged so as to straddle the transport device 10 and the workbench 13. More specifically, the intermediate portion of the seesaw 22 in the transport direction is arranged between the transport device 10 and the workbench 13. Here, the end of the seesaw 22 on the transport device 10 side is referred to as the "upstream end 24", and the end on the workbench 13 side is referred to as the "downstream end 25". The upstream end 24 is inside the transport device 10, and the downstream end 25 is inside the workbench 13.

The carriage 30 has a plurality of wheels 31 at the lower end thereof, and is mounted on the rail 23 on those wheels 31. The trolley 30 has a mounting portion 32 on which the transported object A is mounted at its upper end. Further, the carriage 30 has a pressing portion 33 at its downstream end, which presses the release lever 72 described later to bring it into an inclined state. When the seesaw 22 is tilted with respect to the horizontal plane, the carriage 30 having the above configuration rolls on the seesaw 22 to move toward the lower of the upstream end 24 and the downstream end 25.

In each rail 23, a stopper 26 is provided at a position adjacent to the upstream side of the upstream end portion 24, and a stopper 27 is provided at a position adjacent to the downstream side of the downstream end portion 25. The stopper 26 regulates the carriage 30 from moving further upstream by coming into contact with the wheels 31 on the upstream side of the carriage 30 located at the upstream end 24. The stopper 27 restricts the carriage 30 from moving further downstream by coming into contact with the wheels 31 on the downstream side of the carriage 30 located at the downstream end 25.

A vertical guide shaft 36 extending in the vertical direction is fixed on the base portion 21 and below the downstream end portion 25. The pedal 35 is provided on the side opposite to the transport device 10 with the seesaw 22 interposed therebetween. The pedal 35 includes a tubular portion 35a in which both upper and lower ends are open, and a stepping portion 35b protruding downstream from the tubular portion 35a. The tubular portion 35a is attached to the vertical guide shaft 36 so as to be slidable in the vertical direction, that is, to be able to move up and down. The stepping portion 35b is a place where the worker W steps on.

The drive mechanism 40 is a mechanism for swinging the seesaw 22 so as to satisfy the following conditions in conjunction with the raising and lowering of the pedal 35.
-In response to the lowering of the pedal 35 by the stepping operation on the pedal 35, the upstream end portion 24 is in an inclined state higher than the downstream end portion 25 (hereinafter referred to as "first inclined state").

-As the pedal 35 rises, the upstream end 24 becomes lower than the downstream end 25 (hereinafter referred to as "second tilt state").
A moving space 12 is provided in the transport device 10 in order to allow the upstream end portion 24 that has entered the transport device 10 to move up and down with the swing of the seesaw 22 in a state where the carriage 30 is mounted. ing. The moving space 12 allows the upstream end portion 24 to move up and down below the end portion 11e in response to the swing of the seesaw 22. Further, in the moving space 12, the mounting portion 32 of the carriage 30 on the upstream end portion 24 moves up and down between a position higher than the terminal portion 11e and a position lower than the terminal portion 11e as the upstream end portion 24 moves up and down. Tolerate.

Further, a moving space 15 is provided in the workbench 13 in order to allow the downstream end portion 25 that has entered the workbench 13 to move up and down with the swing of the seesaw 22 in a state where the carriage 30 is mounted. ing. The moving space 15 allows the downstream end portion 25 to move up and down below the working portion 14 in response to the swing of the seesaw 22. Further, in the moving space 15, the mounting portion 32 of the carriage 30 on the downstream end portion 25 moves up and down between a position higher than the working portion 14 and a position lower as the downstream end portion 25 moves up and down. Tolerate.

The drive mechanism 40 includes a first support member 41 and a second support member 46, both of which have a rod shape. The first support member 41 is arranged between the base portion 21 and the seesaw 22 in an inclined state with respect to the seesaw 22. In the present embodiment, the first support member 41 is arranged in an inclined state so as to be lower toward the downstream side. The upper end of the first support member 41 is connected to the seesaw 22 by a shaft 42. The intermediate portion of the first support member 41 in the length direction is supported from below by a support roller 28 rotatably provided with respect to the frame.

The second support member 46 is arranged between the base 21 and the seesaw 22 in an inclined state with respect to the seesaw 22 and the first support member 41. In the present embodiment, the second support member 46 is arranged in an inclined state so as to be higher toward the downstream side. The lower end of the second support member 46 is connected to the base 21 by a shaft 47.

The first support member 41 and the second support member 46 intersect in an X shape when the remounting assist device 20 is viewed from the side. However, the first support member 41 and the second support member 46 are not connected to each other by a shaft or the like.

A push-up roller 43 is supported by a shaft 44 at an intermediate portion of the first support member 41 in the length direction. As shown in FIG. 1, the push-up roller 43 is separated downward from the second support member 46 when the seesaw 22 is in the second inclined state. The push-up roller 43 is accompanied by the tilting of the first support member 41 until the middle of the period in which the first support member 41 is tilted in order to switch the seesaw 22 from the second tilted state to the first tilted state. Approach. From the middle of the above period, the push-up roller 43 comes into contact with the second support member 46 and applies a push-up force to the second support member 46 from below.

The drive mechanism 40 swings the seesaw 22 by changing the inclination mode of the first support member 41 and the second support member 46 according to the raising and lowering of the pedal 35. Therefore, the drive mechanism 40 includes a lower horizontal guide shaft 51, a lower slider 52, and a transmission mechanism 53. The lower horizontal guide shaft 51 extends in the transport direction at a lower portion between the base 21 and the seesaw 22 upstream of the vertical guide shaft 36. The lower lateral guide shaft 51 is fixed to the base 21 at both ends. The lower slider 52 is slidably attached to the lower horizontal guide shaft 51 in the delivery direction. The lower end of the first support member 41 is connected to the lower slider 52 by a shaft 45.

The transmission mechanism 53 is a mechanism for converting the raising and lowering of the pedal 35 into the movement in the transport direction and transmitting the movement to the lower slider 52 away from the pedal 35 on the upstream side. The transmission mechanism 53 includes a plurality of pulleys 54, and a cable 55 that connects the pedal 35 and the lower slider 52 and is hung on the plurality of pulleys 54. As the cable 55, a cable having a length satisfying the following conditions is used.

When the pedal 35 is located at the upper end of the movable range, the lower slider 52 is located at the downstream end of the movable range (see FIG. 1).
When the pedal 35 is located at the lower end of the movable range, the lower slider 52 is located at the upstream end of the movable range (see FIG. 3).

The plurality of pulleys 54 and cables 55 are arranged so that the pedal 35 is raised and lowered at the lower part of the workbench 13.
The drive mechanism 40 further includes a speed reduction mechanism 56 between the upper end of the second support member 46 and the seesaw 22 to reduce the swing of the seesaw 22 in response to the ascent of the pedal 35. A part of the speed reduction mechanism 56 is composed of the push-up roller 43 described above. In addition to the push-up roller 43, the speed reduction mechanism 56 includes an upper lateral guide shaft 57, an upper slider 58, and an elastic member.

The upper lateral guide shaft 57 is arranged below the seesaw 22 and is inclined with respect to the seesaw 22 so as to be higher toward the upstream side. Both ends of the upper lateral guide shaft 57 are fixed to the seesaw 22. The upper slider 58 is slidably attached to the upper horizontal guide shaft 57. The upper end of the second support member 46 is connected to the upper slider 58 by a shaft 48. A locking portion 59 formed of a protrusion is formed on the upper lateral guide shaft 57 at a position separated from the upper slider 58 to the upstream side. The elastic member is composed of a coil spring 61 in the present embodiment, and is mounted around the upper lateral guide shaft 57 between the upper slider 58 and the locking portion 59.

In addition to the above configuration, the remounting assist device 20 includes a holding mechanism 65 and a releasing mechanism 71. The holding mechanism 65 is a mechanism for holding the pedal 35 lowered to the lower end of the movable range at that position.

The holding mechanism 65 includes a holding member 66 and a claw portion 68, and is arranged on the upstream side of the vertical guide shaft 36 and near the upper side of the base portion 21. The holding member 66 is supported by a shaft 67 so as to be tiltable in the vertical direction with respect to the frame. A return spring (not shown) constantly applies an urging force to the holding member 66 to tilt the holding member 66 downward. However, the holding mechanism 65 is provided with a regulating mechanism (not shown) that regulates the holding member 66 from tilting downward from the horizontal state.

The claw portion 68 is supported by the holding member 66 so as to be tiltable in the vertical direction by a shaft 69 provided at a position away from the shaft 67 on the downstream side. A part of the claw portion 68 projects downstream from the holding member 66. A return spring (not shown) constantly applies an urging force to the claw portion 68 to tilt the claw portion 68 upward. However, the holding mechanism 65 is provided with a regulating mechanism (not shown) that regulates the claw portion 68 from tilting upward from the posture extending along the line connecting the shafts 67 and 69.

The holding mechanism 65 takes one of three postures (holding posture, holding release posture, and tilting posture). The holding posture is a posture in which both the holding member 66 and the claw portion 68 are in a horizontal state (see FIG. 1). The holding release posture is a posture in which the claw portion 68 is inclined so as to be higher toward the downstream side with respect to the horizontal state together with the holding member 66 in a state where the upward tilting is restricted (see FIG. 5). The tilted posture is a posture in which the holding member 66 is in a horizontal state and the claw portion 68 is tilted toward the downstream side (see FIG. 2).

The release mechanism 71 is a mechanism for releasing the holding of the pedal 35 by the holding mechanism 65, and is provided between the downstream end portion 25 and the holding mechanism 65. The release mechanism 71 includes a long release lever 72 and a cable 74. The release lever 72 is tiltably supported by a shaft 73 with respect to a support portion 29 hanging from a downstream end portion 25 at an intermediate portion in its own length direction. The upper end portion of the release lever 72 projects upward from the downstream end portion 25. The release lever 72 is in an upright state extending in the vertical direction as shown by the solid line in FIG. 4 and the like, and the portion above the shaft 73 is on the downstream side of the lower portion as shown by the alternate long and short dash line in FIG. It is possible to tilt with and from an inclined state that is inclined so as to be located at.

The release lever 72 rolls on the rail 23 that is in the first inclined state by swinging in response to the lowering of the pedal 35, and presses the carriage 30 that moves from the upstream end 24 to the downstream end 25. When pressed by the portion 33, it is in an inclined state. The release lever 72 is in the upright state in cases other than the above.

The cable 74 is for transmitting the tilt of the release lever 72 to the holding member 66. The upper end of the cable 74 is connected to the lower end of the release lever 72, and the lower end of the cable 74 is connected to a portion of the holding member 66 away from the shaft 67. As the cable 74, a cable having a length satisfying the following conditions is used.

When the release lever 72 is in the upright position, the holding member 66 is not pulled, and the holding mechanism 65 is placed in the holding posture or the tilting posture.
When the release lever 72 is tilted, the holding member 66 is pulled to bring the holding mechanism 65 into the holding / releasing posture.

Next, the operation of the present embodiment configured as described above will be described. In addition, the effects caused by the action will also be described.
FIG. 1 shows a state before the object A to be transported, which has been transported to the terminal portion 11e, is remounted on the workbench 13 by the remounting assisting device 20. In this state, the pedal 35 has not yet been depressed by the operator W, and the pedal 35 is located at the upper end of the movable range. The seesaw 22 has an upstream end 24 in a second inclined state lower than the downstream end 25, and the carriage 30 is located at the upstream end 24, which is the lowest point of the seesaw 22. The wheels 31 on the upstream side of the trolley 30 are in contact with the stopper 26, and the trolley 30 is restricted from moving further upstream. The upstream end portion 24 and the mounting portion 32 of the carriage 30 on the upstream end portion 24 are located below the end portion 11e. The mounting portion 32 is separated downward from the object to be transported A on the terminal portion 11e.

The weights of the members above the first support member 41 and the second support member 46, such as the seesaw 22, the upper horizontal guide shaft 57, the upper slider 58, and the carriage 30, act on the first support member 41 and the second support member 46. The lower slider 52 receives a force toward the downstream side from the first support member 41 and is located at the downstream end of the movable range. The pedal 35, which is connected to the lower slider 52 via the cable 55 and the plurality of pulleys 54, is pulled upward and is located at the upper end of the movable range.

Further, the push-up roller 43 is separated downward from the second support member 46. The coil spring 61 is compressed more than in the free state, and the release lever 72 is in the upright state. The holding mechanism 65 takes a holding posture in which both the holding member 66 and the claw portion 68 are in a horizontal state below the stepping portion 35b of the pedal 35. The cable 74 connecting the release lever 72 and the holding member 66 is loosened.

When the object A to be transported is transferred from the terminal portion 11e onto the mounting portion 32 of the trolley 30, the worker W puts the foot F on the stepping portion 35b of the pedal 35 as shown by the alternate long and short dash line in FIG. Place it and step on the pedal 35. Then, the pedal 35 descends along the vertical guide shaft 36. The movement of the pedal 35 is transmitted to the lower slider 52 via the cable 55 and the plurality of pulleys 54. The lower slider 52 is pulled by the cable 55 and slides upstream along the lower lateral guide shaft 51. The lower end of the first support member 41 moves upstream while the contact point of the first support member 41 with the support roller 28 changes.

Here, the inclination angle, which is the angle formed by the first support member 41 with respect to the horizontal plane, increases as the pedal 35 descends. The upper end of the first support member 41 moves upward. On the other hand, the second support member 46 is not pushed up by the push-up roller 43 and does not tilt or hardly tilts. As a result, the seesaw 22 swings so that the upstream end portion 24 is higher than that in FIG.

When the mounting portion 32 of the carriage 30 on the upstream end portion 24 becomes higher than the terminal portion 11e as the upstream end portion 24 moves upward, the transported object A on the terminal portion 11e is moved by the mounting portion 32. Pushed up. The object to be transported A is moved from the terminal portion 11e to the mounting portion 32.

After the seesaw 22 has passed through a horizontal state in which the upstream end 24 and the downstream end 25 are at the same height from the second inclined state of FIG. 1 in which the upstream end 24 is lower than the downstream end 25 due to the above swing. , The upstream end portion 24 is in the first inclined state of FIG. 2 higher than the downstream end portion 25. Therefore, the carriage 30 on which the object to be transported A is placed on the mounting portion 32 moves toward the downstream end portion 25, which is lower than the upstream end portion 24, by rolling on the rail 23.

As shown by the alternate long and short dash line in FIG. 2, when the carriage 30 is rolling on the upstream side of the release lever 72, the pressing force by the pressing portion 33 of the carriage 30 is not applied to the release lever 72. The release lever 72 remains in the upright position. The holding member 66 in the holding mechanism 65 is not pulled by the cable 74 and is in a horizontal state. On the other hand, the claw portion 68 is pushed downward by the tubular portion 35a and is inclined so as to be lower toward the downstream side. In this way, the posture of the holding mechanism 65 is switched from the holding posture to the tilted posture.

As shown in FIG. 3, when the pedal 35 is further depressed and lowered, the lower slider 52 further slides to the upstream side, and the inclination angle of the first support member 41 becomes further large. The upper end of the first support member 41 moves further upward.

On the other hand, the push-up roller 43 comes into contact with the second support member 46, and the push-up force of the push-up roller 43 is applied to the second support member 46. The inclination angle, which is the angle formed by the second support member 46 with respect to the horizontal plane, increases. A force toward the upstream side acts on the upper slider 58 to which the upper end portion of the second support member 46 is connected. The upper slider 58 slides upstream along the upper lateral guide shaft 57 while compressing the coil spring 61. As a result, the seesaw 22 moves upward while maintaining the inclined state.

Further, when the tubular portion 35a of the pedal 35 descends to a position lower than the claw portion 68 of the tilting posture holding mechanism 65 by the stepping operation and reaches the lower end of the movable range, as shown in FIG. The lower slider 52 reaches the upstream end of the movable range. Further, the claw portion 68 returns to the horizontal state by the urging force of the return spring (not shown). That is, the holding mechanism 65 switches from the tilted posture to the holding posture. As described above, the claw portion 68 is regulated by the regulation mechanism in a posture extending along the line connecting the shafts 67 and 69, in this case, tilting upward from the posture in the horizontal state. Therefore, even if the worker W releases the foot F from the pedal 35 and the downward force is not applied to the pedal 35 and the pedal 35 tries to move upward, the upward movement is restricted by the claw portion 68. To. Since the pedal 35 is held at the lower end of the movable range, the seesaw 22 is held in the first inclined state even if the pedal 35 is not continuously depressed until the carriage 30 on which the object to be transported A reaches the downstream end 25. be able to.

As shown by the alternate long and short dash line in FIG. 3, when the carriage 30 on which the object to be transported A is placed moves to a position close to the downstream end portion 25, the pressing portion 33 comes into contact with the upper end portion of the release lever 72. Further, when the carriage 30 moves to the downstream side, the pressing portion 33 presses the upper end portion of the release lever 72 to the downstream side. By this pressing, as shown by the alternate long and short dash line in FIG. 4, the release lever 72 is tilted and tilted so that the upper portion of the release lever 72 above the shaft 73 is located downstream of the lower portion. Become. The tilt of the release lever 72 is transmitted to the holding member 66 via the cable 74. The holding member 66 is pulled by the cable 74 and tilts upward with the shaft 67 as a fulcrum. As shown by the alternate long and short dash line in FIG. 4, the holding mechanism 65 becomes higher toward the horizontal plane together with the holding member 66 in a state where the claw portion 68 is restricted from tilting upward with respect to the holding member 66. It switches to the tilted holding release posture. In the holding release posture, the claw portion 68 moves upstream from the movable region of the tubular portion 35a of the pedal 35, and the force for holding the pedal 35 at the lower end of the movable range is lost. The pedal 35, on which an upward force acts via the cable 55 and the plurality of pulleys 54, attempts to ascend.

When the carriage 30 further moves to the downstream side and the pressing portion 33 loses the force to press the upper end portion of the release lever 72 to the downstream side, the release lever 72 is shown by a two-dot chain line in FIG. 4 due to its own weight. It switches from the inclined state to the standing state shown by the solid line.

Further, when the carriage 30 reaches the downstream end portion 25, the wheel 31 on the downstream side hits the stopper 27. Therefore, the movement of the carriage 30 to the downstream side is stopped. On the other hand, the object A to be transported on the mounting portion 32 continues to move to the downstream side due to inertia. The object to be transported A is mounted on the working portion 14 as shown by a solid line in FIG. 4 by sliding on the loading portion 32 toward the downstream side.

As shown in FIG. 5, when the pedal 35 is raised, each part of the remounting assisting device 20 operates in the opposite direction to the case where the pedal 35 is lowered.
That is, the lower slider 52 starts to slide downstream along the lower lateral guide shaft 51. The lower end of the first support member 41 moves to the downstream side while the contact point of the first support member 41 with the support roller 28 changes. The inclination angle of the first support member 41 decreases as the pedal 35 rises. The upper end of the first support member 41 moves downward. Further, the position of the push-up roller 43 changes as the first support member 41 tilts. The pushing force of the pushing roller 43 with respect to the second supporting member 46 becomes smaller, and the inclination angle of the second supporting member 46 becomes smaller. The upper slider 58 to which the upper end portion of the second support member 46 is connected slides downstream along the upper lateral guide shaft 57. The coil spring 61 expands with this slide. As a result, the seesaw 22 swings so that the inclination angle formed with respect to the horizontal plane is smaller than the inclination angle in FIG. 4, and the mounting portion 32 becomes lower than the working portion 14 to perform the work. It is separated downward from the object to be transported A placed on the portion 14.

When the pedal 35 is further raised, the inclination angle of the first support member 41 becomes smaller, and the push-up roller 43 is separated downward from the second support member 46 accordingly.
Due to the above swing, the seesaw 22 goes through a horizontal state in which the upstream end 24 and the downstream end 25 are at the same height from the first inclined state in FIG. 3 in which the upstream end 24 is higher than the downstream end 25. , As shown in FIG. 6, the upstream end portion 24 is in a second inclined state lower than the downstream end portion 25. Therefore, the carriage 30 on the downstream end 25 moves toward the upstream end 24, which is lower than the downstream end 25, by rolling on the rail 23, as shown by the alternate long and short dash line in FIG. start. At this time, the upper slider 58 slides upstream while compressing the coil spring 61. The compression of the coil spring 61 slows down the swing of the seesaw 22. That is, the seesaw 22 swings slowly so that the upstream end 24 is lower than the downstream end 25. Therefore, the moving speed of the bogie 30 that rolls on the rail 23 and heads toward the upstream end portion 24 is reduced. The impact when the wheel 31 on the upstream side hits the stopper 26 and the carriage 30 stops at the upstream end 24 can be mitigated. When the mounting portion 32 of the carriage 30 reaches the upstream end portion 24, the mounting portion 32 is located below the terminal portion 11e. The remounting assisting device 20 is in a standby state in preparation for the next remounting work of the object to be transported A, and returns to the same state as in FIG. 1 described above.

As described above, according to the present embodiment, when the operator W depresses the pedal 35, the object to be transported A transported to the terminal portion 11e can be moved to the downstream end portion 25 of the seesaw 22. Therefore, the worker W does not have to reach to the end portion 11e above the workbench 13, that is, does not have to lean forward, and transfers the transported object A from the end portion 11e to the workbench 13. You don't have to bend forward and bend forward. It is possible to reduce the burden on the worker W when the object to be transported A is transferred from the terminal portion 11e to the workbench 13. As a result, it is possible to reduce the fatigue of the worker W when the remounting work is repeated.

According to this embodiment, the following effects can be obtained in addition to the above.
A pulley 54 and a cable 55 are used as the transmission mechanism 53. The pulley 54 and the cable 55 are arranged so that the pedal 35 is raised and lowered at the lower part of the workbench 13. Therefore, the operator W can step on the pedal 35 without raising the foot F to a high position. In this respect, the burden on the worker W can be further reduced.

By providing the moving space 12 in the transport device 10, the upstream end portion 24 is allowed to move up and down below the end portion 11e in response to the swing of the seesaw 22. Further, the mounting portion 32 of the carriage 30 on the upstream end portion 24 is allowed to move up and down between a position higher than the end portion 11e and a position lower than the end portion 11e as the upstream end portion 24 moves up and down. ing.

Therefore, by depressing the pedal 35 and lowering it, the object A to be transported on the terminal portion 11e can be replaced on the mounting portion 32 of the carriage 30.
By providing the moving space 15 in the workbench 13, the downstream end portion 25 is allowed to move up and down below the work portion 14 in response to the swing of the seesaw 22. Further, the mounting portion 32 of the carriage 30 on the downstream end portion 25 is allowed to move up and down between a position higher than the working portion 14 and a position lower than the working portion 14 as the downstream end portion 25 moves up and down. ing.

Therefore, by moving the carriage 30 on which the transported object A is placed on the mounting portion 32 to the downstream end portion 25, the transported object A can be moved onto the working portion 14. The worker W does not have to perform the work of grasping the object to be transported A and remounting it on the work unit 14. In this respect as well, the burden on the worker W can be reduced.

In addition, the above-described embodiment can also be implemented as a modified example in which this is modified as follows. The above embodiment and the following modifications can be implemented in combination with each other within a technically consistent range.

The seesaw 22 may be arranged so that the upstream end portion 24 moves up and down on the downstream side of the terminal portion 11e instead of the inside of the transport device 10 as the seesaw 22 swings. In this case, after the object to be transported A reaches the end portion 11e, it is placed on the mounting portion 32 of the trolley 30 on the upstream end portion 24.

The seesaw 22 may be arranged so that the downstream end portion 25 moves up and down on the upstream side of the work portion 14 instead of the workbench 13 as the seesaw 22 swings. In this case, the worker W will perform the work of grasping the object to be transported A and transferring it from the downstream end portion 25 onto the working portion 14.

In the speed reduction mechanism 56, the swing of the seesaw 22 may be reduced in response to the rise of the pedal 35 by extending the coil spring 61.
-As the elastic member, a spring of a type different from that of the coil spring 61 may be used. Further, as the elastic member, a member different from the spring may be used on condition that the member has elasticity.

If the impact when the carriage 30 stops at the upstream end portion 24 is small enough not to cause a problem, the reduction mechanism 56 may be omitted.
-The holding mechanism 65 and the releasing mechanism 71 may be omitted. In this case, the worker W keeps stepping on the pedal 35 until the carriage 30 reaches the downstream end portion 25.

10 ... Transport device, 11 ... Transport section, 11e ... Terminal section, 12, 15 ... Moving space, 13 ... Worktable, 20 ... Reloading auxiliary device, 21 ... Base, 22 ... Seesaw, 24 ... Upstream end, 25 ... downstream end, 30 ... trolley, 32 ... mounting part, 35 ... pedal, 40 ... drive mechanism, 41 ... first support member, 46 ... second support member, 51 ... lower horizontal guide shaft, 52 ... lower slider, 53 ... Transmission mechanism, 54 ... Pulley, 55 ... Cable, 56 ... Reduction mechanism, 57 ... Upper horizontal guide shaft, 58 ... Upper slider, 59 ... Locking part, 61 ... Coil spring (elastic member), 65 ... Holding mechanism, 71 ... Release mechanism, A ... Object to be transported.

Claims (8)

It is a transfer assisting device that assists the work of transferring the object to be conveyed to the end by the transfer part of the transfer device to a workbench separated from the end part to the downstream side in the transfer direction.
A seesaw in which at least a part of itself is arranged between the transport device and the workbench, and has an end on the transport device side as an upstream end and an end on the workbench side as a downstream end. When,
A dolly that has a mounting portion on which the transported object is mounted and that moves between the upstream end portion and the downstream end portion by rolling on the seesaw.
A pedal provided so as to be able to move up and down on the side opposite to the transport device across the seesaw,
The upstream end is in a first inclined state higher than the downstream end in response to the lowering of the pedal by the depression operation, and the upstream end is lower than the downstream end in response to the pedal rise. A remounting auxiliary device including a drive mechanism for swinging the seesaw so as to be in a second inclined state. The transport device allows the upstream end to move up and down below the end in response to the swing of the seesaw, and the front-mounted portion of the trolley on the upstream end. The remounting assist device according to claim 1, further comprising a moving space that allows vertical movement between a position higher than the terminal portion and a position lower than the terminal portion as the upstream end portion moves up and down. Further provided at the bottom of the seesaw with a non-movable base
The drive mechanism includes a rod-shaped first support member arranged in an inclined state with respect to the seesaw between the base and the seesaw, and between the base and the seesaw, the seesaw and the first. A rod-shaped second support member arranged in an inclined state with respect to both of the support members is provided.
The drive mechanism according to claim 1 or 2, wherein the drive mechanism swings the seesaw by changing the inclination mode of the first support member and the second support member according to the raising and lowering of the pedal. Remounting assistance device. The drive mechanism includes a lower horizontal guide shaft extending in the transport direction, a lower slider slidably mounted on the lower horizontal guide shaft, and the lower slider by converting the raising and lowering of the pedal into movement in the transport direction. Equipped with a transmission mechanism to transmit
The remounting assist device according to claim 3, wherein the upper end portion of the first support member is connected to the seesaw, and the lower end portion of the first support member is connected to the lower slider. The remounting assisting device according to claim 4, wherein the transmission mechanism includes a plurality of pulleys, a cable connecting the pedal and the lower slider, and a cable hung on the plurality of pulleys. The lower end of the second support member is connected to the base and
Any of claims 3 to 5, wherein the drive mechanism further includes a reduction mechanism for decelerating the swing of the seesaw in response to an increase in the pedal between the upper end portion of the second support member and the seesaw. The remounting assist device according to item 1. The reduction mechanism is arranged below the seesaw and is slidably attached to the upper lateral guide shaft fixed to the seesaw at both ends and the upper end portion of the first support member. The remounting assisting device according to claim 6, further comprising an upper slider to which the upper slider is connected, and an elastic member arranged between the locking portion provided on the upper lateral guide shaft and the upper slider. A holding mechanism that holds the pedal lowered to the lower end of the movable range at that position,
The dolly that is provided between the downstream end and the holding mechanism and that rolls on the seesaw that swings in response to the lowering of the pedal and moves from the upstream end to the downstream end. The remounting assist device according to any one of claims 1 to 7, further comprising a release mechanism for releasing the holding of the pedal by the holding mechanism.