JP7256452B2 - Reloading auxiliary device - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reloading assisting device for assisting the reloading work of an object to be transported, which is conveyed by a conveying device such as a conveyor, onto a workbench.

In a production line for products such as automobile bumpers, 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. be. The transported object transported to the end portion by the transport device is placed by an operator on a workbench spaced downstream in the transport direction from the end portion for inspection or transport to another manufacturing line. may be replaced.

JP-A-1-257684

However, when a worker standing on the opposite side of the workbench from the conveying device puts the transported object on the end portion onto the workbench, he or she must extend his/her hand to the end portion above the workbench. In other words, it is necessary to lean forward to grasp the object to be conveyed, and the person must bend forward to take a posture. Moreover, the above operation is repeated. Therefore, there is a problem that the burden on the operator increases.

SUMMARY OF THE INVENTION The present invention has been made in view of such circumstances, and an object of the present invention is to reduce the burden on a worker when transferring an object to be conveyed from the terminal end of a conveying device to a workbench. To provide a replacement auxiliary device.

A reloading assisting device for solving the above-described problems assists the work of reloading a transported object transported to a terminal end portion by a transporting portion of a transporting device onto a workbench spaced apart from the terminal end portion downstream in the transport direction. A change auxiliary device, at least a part of which is arranged between the carrier device and the workbench, has an end on the side of the carrier device as an upstream end, and an end on the side of the workbench as a downstream end, and a placing portion on which the transported object is placed, and by rolling on the seesaw, it moves between the upstream end and the downstream end A trolley, a pedal provided on the opposite side of the transport device across the seesaw so that it can be raised and lowered, and a first pedal whose upstream end is higher than the downstream end in response to the descent of the pedal due to a stepping operation. and a driving mechanism for swinging the seesaw so that the upstream end is lower than the downstream end in a second tilted state in accordance with the upward movement of the pedal.

According to the above configuration, when the seesaw is inclined with respect to the horizontal plane, the carriage on the seesaw rolls on the seesaw to move toward the lower one of the upstream end and the downstream end. .

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

Therefore, when the object conveyed to the terminal end of the conveying portion is placed on the placing portion of the carriage located at the upstream end of the seesaw and is lowered by depressing the pedal, the object is lowered. , the seesaw is swung so as to be in the first tilted state. The carriage with the object to be conveyed placed on the placement portion rolls on the seesaw to move toward the downstream end. Therefore, the worker can transfer the workbench to the workbench without reaching to the end portion above the workbench, that is, without leaning over. The worker does not have to bend forward to take a forward slouching posture when transferring the transported object.

Note that when the pedal is lifted after the transported object is transferred to the work table, the seesaw is swung so as to be in the second inclined state in accordance with the lift. By rolling on the seesaw, the cart moves to an upstream end that is lower than the downstream end.

According to the reloading auxiliary device, it is possible to reduce the burden on the operator when the transported object is reloaded from the terminal end of the transporting device to the workbench.

FIG. 2 is a schematic configuration diagram showing the state of the remounting assist device before the pedal is stepped on in one embodiment. FIG. 4 is a schematic configuration diagram showing a state of the remounting assist device immediately after a pedal stepping operation is started in one embodiment. FIG. 10 is a schematic configuration diagram showing a state of the 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. FIG. 4 is a schematic configuration diagram showing the state of the reloading assist device when the holding of the pedal is released by the release mechanism in one embodiment. FIG. 10 is a schematic configuration diagram showing a state of the remounting assist device in which the pedal has started to rise in one embodiment. Schematic configuration diagram showing a state of the remounting assist device in which the pedal is raised to the upper end of the movable range in one embodiment.

An embodiment of the remounting assist device will be described below with reference to the drawings.
In FIG. 1, part of a conveying device 10 and a workbench 13 in a manufacturing line for products such as automobile bumpers are illustrated by two-dot chain lines.

The conveying device 10 conveys a manufactured product, an intermediate product in the middle of manufacturing, or the like as a transported object A, and is configured by, for example, a conveyor. The conveying device 10 has, at its upper end portion, a conveying section 11 that conveys the object to be conveyed A with the direction from right to left in FIG. 1 being the conveying direction. Note that FIG. 1 shows only the end portion 11e of the conveying portion 11. As shown in FIG.

The workbench 13 is provided for inspecting the transferred object A and for transferring the transferred object A to another manufacturing line. The workbench 13 is arranged at a position separated from the terminal end portion 11e of the conveying device 10 toward the downstream side in the conveying direction. The workbench 13 has, at its upper end, a work section 14 where the inspection work and work for transportation to another manufacturing line are performed.

In the manufacturing line described above, the worker W carries out the work of transferring the transported object A transported to the end portion 11 e onto the workbench 13 . This work is performed with the worker W standing facing the workbench 13 and the conveying device 10 on the opposite side of the workbench 13 from the conveying device 10 . The reloading assist device 20 of the present embodiment is for assisting the worker W in reloading the transferred object A. As shown in FIG.

An outer shell portion of the remounting assist device 20 is configured by a frame (not shown). The lower end of the frame is constituted by a fixedly arranged base 21 . The transfer assist device 20 includes a seesaw 22 , a carriage 30 , pedals 35 and a drive mechanism 40 .

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

The seesaw 22 has a pair of rails 23 extending in the transport direction. Both rails 23 are arranged parallel to each other above the base 21 in a direction perpendicular to the plane of the drawing. The seesaw 22 is arranged in a state straddling the conveying device 10 and the workbench 13 . More specifically, an intermediate portion of the seesaw 22 in the transport direction is arranged between the transport device 10 and the workbench 13 . Here, the end portion of the seesaw 22 on the transport device 10 side is referred to as "upstream end portion 24", and the end portion on the workbench 13 side is referred to as "downstream end portion 25". The upstream end 24 is recessed into the transport device 10 and the downstream end 25 is recessed into the workbench 13 .

The carriage 30 has a plurality of wheels 31 at its lower end and rests on the rails 23 on these wheels 31 . The carriage 30 has a mounting portion 32 on which the transferred object A is mounted at its upper end portion. Further, the carriage 30 has a pressing portion 33 at its downstream end for pressing a release lever 72 (to be described later) to tilt it. When the seesaw 22 is tilted with respect to the horizontal plane, the carriage 30 configured as described above rolls on the seesaw 22 to move toward the lower one of the upstream end 24 and the downstream end 25 .

In each rail 23, a stopper 26 is provided at a portion adjacent to the upstream end portion 24 on the upstream side, and a stopper 27 is provided at a portion adjacent to the downstream end portion 25 on the downstream side. The stopper 26 contacts the wheel 31 on the upstream side of the truck 30 positioned at the upstream end 24 to restrict the truck 30 from moving further upstream. The stopper 27 comes into contact with the wheels 31 on the downstream side of the truck 30 positioned at the downstream end 25, thereby restricting the truck 30 from moving further downstream.

A vertically extending vertical guide shaft 36 is fixed on the base portion 21 and below the downstream end portion 25 . The pedal 35 is provided on the opposite side of the transport device 10 with the seesaw 22 interposed therebetween. The pedal 35 includes a tubular portion 35a with both upper and lower ends opened, and a stepping portion 35b projecting downstream from the tubular portion 35a. The cylindrical 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 portion to be stepped on by the worker W. As shown in FIG.

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

- As the pedal 35 rises, the upstream end portion 24 enters a tilted state lower than the downstream end portion 25 (hereinafter referred to as the "second tilted state").
A moving space 12 is provided in the conveying device 10 in order to allow the upstream end portion 24 that has entered the conveying device 10 to move up and down as the seesaw 22 swings in a state where the carriage 30 is placed thereon. ing. The movement space 12 allows the upstream end portion 24 to move up and down below the terminal end portion 11e in response to the rocking motion of the seesaw 22 . In the movement 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 end portion 11e and a position lower than the end portion 11e as the upstream end portion 24 moves up and down. allow.

Further, in order to allow the downstream end portion 25, which has entered the workbench 13, to move up and down along with the rocking of the seesaw 22 with the carriage 30 placed thereon, the workbench 13 is provided with a movement space 15. ing. The movement space 15 allows the downstream end portion 25 to move up and down below the working portion 14 as the seesaw 22 swings. 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 than the working portion 14 as the downstream end portion 25 moves up and down. allow.

The drive mechanism 40 includes a first support member 41 and a second support member 46 that are both rod-shaped. The first support member 41 is arranged between the base portion 21 and the seesaw 22 so as to be inclined with respect to the seesaw 22 . In this embodiment, the first support member 41 is arranged in an inclined state so as to become lower toward the downstream side. An upper end portion of the first support member 41 is connected to the seesaw 22 by a shaft 42 . An intermediate portion in the length direction of the first support member 41 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 so as to be inclined with respect to the seesaw 22 and the first support member 41 . In this embodiment, the second support member 46 is arranged in an inclined state so as to become higher toward the downstream side. A lower end portion of the second support member 46 is connected to the base portion 21 by a shaft 47 .

The first support member 41 and the second support member 46 intersect each other in an X shape when the transfer 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 in the length direction of the first support member 41 . 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 moves the second support member 46 along with the tilting of the first support member 41 until the middle of the period in which the first support member 41 tilts in order to switch the seesaw 22 from the second tilt state to the first tilt state. approach. The push-up roller 43 comes into contact with the second support member 46 from the middle of the above period 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 inclinations of the first support member 41 and the second support member 46 according to the elevation of the pedal 35 . For this purpose, the drive mechanism 40 has a lower horizontal guide shaft 51 , a lower slider 52 and a transmission mechanism 53 . The lower horizontal guide shaft 51 extends upstream of the vertical guide shaft 36 in the transport direction in the lower portion between the base portion 21 and the seesaw 22 . The lower horizontal guide shaft 51 is fixed to the base 21 at both ends. The lower slider 52 is attached to the lower lateral guide shaft 51 so as to be slidable in the delivery direction. A lower end portion 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 upward and downward movement of the pedal 35 into movement in the transport direction and transmitting the movement to the lower slider 52 separated upstream from the pedal 35 . The transmission mechanism 53 includes a plurality of pulleys 54 and a cable 55 that connects the pedals 35 and the lower slider 52 and is hung on the plurality of pulleys 54 . As the cable 55, one having a length that satisfies the following conditions is used.

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

The plurality of pulleys 54 and cables 55 are arranged so that the pedals 35 can be raised and lowered under the workbench 13 .
The driving mechanism 40 further includes a deceleration mechanism 56 between the upper end portion of the second support member 46 and the seesaw 22 that decelerates the rocking motion of the seesaw 22 in response to the lifting of the pedal 35 . A portion of the deceleration mechanism 56 is configured by the push-up roller 43 described above. The deceleration mechanism 56 includes an upper horizontal guide shaft 57, an upper slider 58, and an elastic member in addition to the push-up roller 43 described above.

The upper horizontal guide shaft 57 is arranged below the seesaw 22 and inclined with respect to the seesaw 22 so as to be higher toward the upstream side. Both ends of the upper horizontal guide shaft 57 are fixed to the seesaw 22 . The upper slider 58 is slidably mounted on 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 . On the upper horizontal guide shaft 57 , a locking portion 59 is formed as a protrusion at a location away from the upper slider 58 to the upstream side. In this embodiment, the elastic member is a coil spring 61 and is mounted around the upper horizontal guide shaft 57 between the upper slider 58 and the engaging portion 59 .

The reloading auxiliary device 20 includes a holding mechanism 65 and a release mechanism 71 in addition to the above configuration. The holding mechanism 65 is a mechanism that holds 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 upstream of the vertical guide shaft 36 and near the upper portion of the base portion 21 . The holding member 66 is supported by a shaft 67 so as to be vertically tiltable 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 restricting mechanism (not shown) that restricts the holding member 66 from tilting below the horizontal state.

The claw portion 68 is tiltably supported in the vertical direction by a shaft 69 provided at a portion of the holding member 66 away from the shaft 67 to the downstream side. A portion of the claw portion 68 protrudes downstream from the holding member 66 . An urging force is always applied to the claw portion 68 by a return spring (not shown) to tilt the claw portion 68 upward. However, the holding mechanism 65 is provided with a restricting mechanism (not shown) that restricts 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 restricted from tilting upward, and is tilted with respect to the horizontal state together with the holding member 66 so as to become higher toward the downstream side (see FIG. 5). The tilted posture is a posture in which the holding member 66 is in a horizontal state and the claw portions 68 are inclined so as to become lower 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 an elongated release lever 72 and a cable 74 . The release lever 72 is tiltably supported by a shaft 73 on a support portion 29 hanging down from the downstream end portion 25 at an intermediate portion in the length direction of the release lever 72 . The upper end of the release lever 72 protrudes upward from the downstream end 25 . The release lever 72 has an upright state extending in the vertical direction as indicated by solid lines in FIG. can be tilted between a tilted state in which it is tilted so as to be positioned at

The release lever 72 swings in accordance with the downward movement of the pedal 35 and rolls on the rail 23 in the first inclined state to press the carriage 30 moving from the upstream end 24 toward the downstream end 25 . When pressed by the portion 33, it is in a tilted state. The release lever 72 is in an upright state in cases other than the above.

The cable 74 is for transmitting the tilting motion 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, one having a length that satisfies the following conditions is used.

- When the release lever 72 is in the upright state, the holding member 66 is not pulled, and the holding mechanism 65 is placed in the holding posture or the tilted posture.
- When the release lever 72 is in an inclined state, the holding member 66 is pulled to set the holding mechanism 65 to the holding release posture.

Next, the operation of this embodiment configured as described above will be described. In addition, effects caused by the action will also be described.
FIG. 1 shows a state before transferred object A conveyed to end portion 11 e is transferred to workbench 13 by transfer auxiliary device 20 . In this state, the operator W has not stepped on the pedal 35 yet, and the pedal 35 is positioned at the upper end of the movable range. The seesaw 22 is in a second inclined state in which the upstream end 24 is lower than the downstream end 25 , and the carriage 30 is positioned at the lowest point of the seesaw 22 , the upstream end 24 . The wheels 31 on the upstream side of the truck 30 are in contact with the stoppers 26, and the truck 30 is restricted from moving further upstream. The upstream end portion 24 and the mounting portion 32 of the carriage 30 thereon are positioned below the terminal portion 11e. The mounting portion 32 is spaced downward from the transferred object A on the end portion 11e.

The weights of the upper members 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. As shown in FIG. The lower slider 52 receives a downstream force from the first support member 41 and is positioned at the downstream end of the movable range. The pedal 35 connected to the lower slider 52 via a cable 55 and a plurality of pulleys 54 is pulled upward and positioned at the upper end of its movable range.

Also, the push-up roller 43 is spaced downward from the second support member 46 . The coil spring 61 is compressed from its free state, and the release lever 72 is in an upright state. The holding mechanism 65 adopts 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. As shown in FIG. A cable 74 connecting the release lever 72 and the holding member 66 is slack.

When transferring the object A from the end portion 11e to the placing portion 32 of the carriage 30, the operator W puts his/her foot F on the stepping portion 35b of the pedal 35, as indicated by the two-dot chain line in FIG. and depress the same pedal 35. Then, the pedal 35 descends along the vertical guide shaft 36 . The movement of this pedal 35 is transmitted to the lower slider 52 via a cable 55 and a plurality of pulleys 54 . The lower slider 52 is pulled by the cable 55 and slides upstream along the lower horizontal guide shaft 51 . The lower end portion of the first support member 41 moves upstream while the contact point of the first support member 41 with respect to 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 such that the upstream end 24 is higher than in FIG.

As the upstream end portion 24 moves upward, when the placing portion 32 of the carriage 30 on the upstream end portion 24 becomes higher than the terminal portion 11e, the transferred object A on the terminal portion 11e is moved by the placing portion 32. pushed upwards. The transported object A is transferred from the terminal end portion 11e to the placement portion 32 .

After the seesaw 22 moves from the second tilted state in FIG. 2, in which the upstream end 24 is higher than the downstream end 25 . Therefore, the carriage 30 with the object A placed on the placement portion 32 rolls on the rails 23 to move toward the downstream end portion 25 which is lower than the upstream end portion 24 .

As shown by the two-dot chain line in FIG. 2, when the carriage 30 is rolling on the upstream side of the release lever 72, the pressing force of the pressing portion 33 of the carriage 30 is not applied to the release lever 72. The release lever 72 remains in the upright state. 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 cylindrical portion 35a and is inclined so as to become lower toward the downstream side. Thus, the posture of the holding mechanism 65 is switched from the holding posture to the tilting posture.

As shown in FIG. 3, when the pedal 35 is further depressed and lowered, the lower slider 52 slides further upstream, and the inclination angle of the first support member 41 further increases. 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 by the push-up roller 43 is applied to the second support member 46 . The inclination angle, which is the angle that the second support member 46 forms with the horizontal plane, increases. An upstream force acts on the upper slider 58 to which the upper end of the second support member 46 is connected. The upper slider 58 slides upstream along the upper horizontal guide shaft 57 while compressing the coil spring 61 . As a result, the seesaw 22 moves upward while maintaining the tilted state.

Further, by the stepping operation, the cylindrical portion 35a of the pedal 35 descends to a position lower than the claw portion 68 of the holding mechanism 65 in the tilted posture, and when it reaches the lower end of the movable range, as shown in FIG. The lower slider 52 reaches the upstream end of its movable range. Also, the claw portion 68 returns to a horizontal state by the biasing force of a 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 restricted by the restricting mechanism from tilting upward from the attitude extending along the line connecting the two shafts 67 and 69, in this case, from the horizontal attitude. Therefore, even if the worker W removes the foot F from the pedal 35 and the downward force is no longer applied to the pedal 35 and the pedal 35 attempts to move upward, the upward movement is restricted by the claw portion 68 . be. Since the pedal 35 is held at the lower end of the movable range, the seesaw 22 is held in the first inclined state without continuing to step on the pedal 35 until the carriage 30 carrying the object to be conveyed A reaches the downstream end portion 25. be able to.

As indicated by the two-dot chain line in FIG. 3 , when the carriage 30 carrying the object A is moved to a location near the downstream end 25 , the pressing portion 33 comes into contact with the upper end of the release lever 72 . Further, when the carriage 30 moves downstream, the pressing portion 33 presses the upper end portion of the release lever 72 downstream. 4, the release lever 72 is tilted so that the upper portion of the release lever 72 is located downstream of the lower portion of the shaft 73. Become. The tilting motion 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 indicated by the two-dot chain line in FIG. 4 , the holding mechanism 65 rises along with the holding member 66 with respect to the horizontal plane toward the downstream side in a state in which the claw portion 68 is restricted from tilting upward with respect to the holding member 66 . It switches to the holding release posture inclined as shown in FIG. In the hold release posture, the claw portion 68 moves upstream from the movable range of the cylindrical portion 35a of the pedal 35, and the force that holds the pedal 35 at the lower end of the movable range is lost. The pedal 35, which is exerting an upward force via the cable 55 and the plurality of pulleys 54, tends to rise.

When the carriage 30 moves further downstream and the pressing portion 33 no longer presses the upper end portion of the release lever 72 downstream, the release lever 72 is moved by its own weight, as indicated by the two-dot chain line in FIG. The tilted state is switched to the standing state indicated by the solid line.

Further, when the carriage 30 reaches the downstream end 25 , the wheels 31 on the downstream side hit the stopper 27 . Therefore, movement of the truck 30 to the downstream side stops. On the other hand, the transferred object A on the mounting section 32 continues to move downstream due to inertia. The transported object A slides downstream on the placing section 32 and is placed on the working section 14 as indicated by the solid line in FIG. 4 .

As shown in FIG. 5, when the pedal 35 is raised, each part of the transfer assist device 20 operates in the opposite manner to when the pedal 35 is lowered.
That is, the lower slider 52 begins to slide downstream along the lower horizontal guide shaft 51 . The lower end portion of the first support member 41 moves downstream while the contact portion of the first support member 41 with respect to the support roller 28 changes. The inclination angle of the first support member 41 becomes smaller as the pedal 35 rises. The upper end of the first support member 41 moves downward. In addition, the position of the push-up roller 43 changes as the first support member 41 tilts. The push-up force of the push-up roller 43 to the second support member 46 becomes smaller, and the inclination angle of the second support member 46 becomes smaller. An upper slider 58 to which the upper end of the second support member 46 is connected slides downstream along the upper horizontal guide shaft 57 . The coil spring 61 expands with this sliding. As a result, the seesaw 22 oscillates so that the tilt angle, which is the angle formed with the horizontal plane, becomes smaller than the tilt angle shown in FIG. It is spaced downward from the transferred object A placed on the part 14 .

When the pedal 35 is further raised, the inclination angle of the first support member 41 is further reduced, and along with this, the push-up roller 43 is separated downward from the second support member 46 .
Due to the rocking motion, the seesaw 22 moves from the first inclined state in FIG. , the upstream end 24 is lower than the downstream end 25, as shown in FIG. Therefore, the carriage 30 on the downstream end 25 moves toward the upstream end 24 lower than the downstream end 25 by rolling on the rail 23 as indicated by the two-dot chain 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 decelerates the rocking motion of the seesaw 22 . That is, the seesaw 22 slowly swings so that the upstream end 24 is lower than the downstream end 25 . Therefore, the movement speed of the carriage 30 rolling on the rail 23 toward the upstream end 24 is reduced. The impact when the wheel 31 on the upstream side hits the stopper 26 and the truck 30 stops at the upstream end portion 24 can be alleviated. When the mounting portion 32 of the carriage 30 reaches the upstream end portion 24, it is positioned below the terminal portion 11e. The transfer auxiliary device 20 enters a standby state in preparation for the next transfer operation of the transferred object A, and returns to the same state as in FIG. 1 described above.

As described above, according to the present embodiment, the worker W can move the object A, which has been conveyed to the end portion 11 e , to the downstream end portion 25 of the seesaw 22 by stepping on the pedal 35 . Therefore, the worker W does not need to extend his hand to the end portion 11e above the work table 13, that is, he does not need to lean over, and transfer the transferred object A from the end portion 11e to the work table 13. You don't have to bend your back and bend forward when doing this. It is possible to reduce the burden on the worker W when transferring the transferred object A from the end portion 11e to the workbench 13. As shown in FIG. As a result, it is possible to reduce the fatigue of the worker W when the reloading work is repeated.

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

- By providing the movement space 12 in the conveying device 10, the upstream end portion 24 is allowed to move up and down below the end portion 11e in response to the rocking motion 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 stepping on the pedal 35 and lowering it, the transferred object A on the end portion 11 e can be reloaded onto the mounting portion 32 of the carriage 30 .
- By providing the movement space 15 in the working table 13 , the downstream end portion 25 is allowed to move up and down below the working portion 14 in response to the rocking motion of the seesaw 22 . In addition, 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 with the transferred object A placed on the placing portion 32 to the downstream end portion 25 , the transferred object A can be transferred onto the working portion 14 . The worker W does not have to carry out the work of holding the transferred object A and replacing it on the working part 14 . Also in this respect, the burden on the worker W can be reduced.

It should be noted that the above-described embodiment can also be implemented as a modified example in which this is changed as follows. The above embodiments and the following modifications can be combined with each other within a technically consistent range.

- The seesaw 22 may be arranged so that the upstream end 24 moves up and down along with the rocking thereof on the downstream side of the terminal end 11e instead of inside the conveying device 10 . In this case, the transferred object A is placed on the placing portion 32 of the carriage 30 on the upstream end portion 24 after reaching the terminal end portion 11e.

The seesaw 22 may be arranged so that the downstream end 25 moves up and down upstream of the work unit 14 instead of inside the work table 13 as the seesaw 22 swings. In this case, the worker W carries out the work of holding the transferred object A and transferring it from the downstream end portion 25 onto the working portion 14 .

- In the deceleration mechanism 56 , the coil spring 61 may be stretched to decelerate the rocking motion of the seesaw 22 in response to the pedal 35 being lifted.
- A spring of a different type from the coil spring 61 may be used as the elastic member. Also, as the elastic member, a member different from the spring may be used on condition that it has elasticity.

- If the impact when the carriage 30 stops at the upstream end 24 is so small as to be negligible, the reduction mechanism 56 may be omitted.
- The holding mechanism 65 and the release mechanism 71 may be omitted. In this case, the worker W keeps stepping on the pedal 35 until the truck 30 reaches the downstream end 25 .

DESCRIPTION OF SYMBOLS 10... Conveying apparatus, 11... Conveying part, 11e... End part, 12, 15... Space for movement, 13... Workbench, 20... Replacing auxiliary device, 21... Base part, 22... Seesaw, 24... Upstream end part, 25 Downstream end portion 30 Carriage 32 Mounting portion 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... Engaging portion, 61... Coil spring (elastic member), 65... Holding mechanism, 71...Releasing mechanism, A...Transported object.

Claims (8)

A reloading auxiliary device for assisting the work of reloading a transported object transported to a terminal end portion by a transporting portion of a transporting device onto a workbench spaced downstream from the terminal end portion in the transport direction,
At least a part of the seesaw is disposed between the conveying device and the workbench, has an end on the conveying device side as an upstream end, and has an end on the workbench side as a downstream end and,
a carriage that has a placement portion on which the object to be transported is placed, and that rolls on the seesaw to move between the upstream end and the downstream end;
a pedal provided to be able to move up and down on the side opposite to the transport device across the seesaw;
The upstream end is higher than the downstream end in a first inclined state in response to lowering of the pedal by a stepping operation, and the upstream end is lower than the downstream end in response to raising of the pedal. and a driving mechanism for swinging the seesaw so as to be in a second tilted state. The conveying device allows the upstream end portion to move up and down below the terminal end portion in accordance with the rocking motion of the seesaw, and the mounting portion of the carriage on the upstream end portion is configured to: 2. A transfer assist device according to claim 1, further comprising a moving space for allowing vertical movement between a position higher than said end portion and a position lower than said end portion as said upstream end portion moves up and down. further comprising a base immovably arranged at the bottom of the seesaw;
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 a first support member arranged between the base and the seesaw, and between the base and the seesaw, the seesaw and the first seesaw. A rod-shaped second support member arranged in an inclined state with respect to both of the support members,
3. The drive mechanism according to claim 1, wherein the drive mechanism swings the seesaw by changing the inclinations of the first support member and the second support member according to the elevation of the pedal. Transfer aid. The drive mechanism includes a lower horizontal guide shaft extending in the conveying direction, a lower slider slidably mounted on the lower horizontal guide shaft, and a lower slider that converts the elevation of the pedal into movement in the conveying direction. and a transmission mechanism for transmitting,
4. The transfer assist device according to claim 3, wherein the upper end of said first support member is connected to said seesaw, and the lower end of said first support member is connected to said lower slider. 5. The transfer assist device according to claim 4, wherein the transmission mechanism includes a plurality of pulleys and a cable that connects the pedal and the lower slider and is hung on the plurality of pulleys. a lower end of the second support member is connected to the base;
6. The drive mechanism according to any one of claims 3 to 5, further comprising a deceleration mechanism between the upper end of the second support member and the seesaw for decelerating the rocking motion of the seesaw in response to the upward movement of the pedal. or 1. A remounting auxiliary device according to item 1. The speed reduction mechanism includes an upper horizontal guide shaft arranged below the seesaw and fixed to the seesaw at both ends ; 7. The remounting assisting device according to claim 6, further comprising an upper slider to which a portion is connected, and an elastic member arranged between the locking portion provided on the upper horizontal 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 carriage that is provided between the downstream end and the holding mechanism, rolls on the seesaw that is rocked in accordance with the descent of the pedal, and moves from the upstream end toward the downstream end. 8. The remounting assist device according to any one of claims 1 to 7, further comprising a release mechanism that is actuated by the pedal to release the holding of the pedal by the holding mechanism.

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