JP6900045B2 - Bogie connection device for automatic guided vehicles - Google Patents

Description

The present invention relates to a bogie connecting device for connecting a bogie to an automatic guided vehicle.

As a connecting device for connecting the trolley to the automatic guided vehicle, the automatic guided vehicle is provided with an engaging claw provided on the lower surface of the trolley and a locking pin provided on the automatic guided vehicle so as to be able to move up and down. A configuration has been proposed in which a trolley is connected to an automatic guided vehicle by raising the locking pin and engaging the engaging claw (for example, Patent Document 1).

Special Publication No. 52-34823

A supplier who manufactures lunch boxes, rice balls, sandwiches, etc. and delivers them to supermarkets and convenience stores stacks a plurality of transport containers (so-called number weights) containing a plurality of articles on a trolley at a work station. Then, the trolleys in which the weights are piled up are transported to the next process station where the shipping work of goods is performed. It is required to use an automatic guided vehicle to transport the trolley in order to save labor.

However, there are hundreds of trolleys used by each trader, and like the connecting device of Patent Document 1, engagement such as an engaging claw for engaging a locking pin provided on an automatic guided vehicle is engaged. For devices that need to be installed on trolleys, when introducing an automatic guided vehicle, it is necessary to install it on all trolleys including the trolley in the distribution process, which is a problem when introducing an automatic guided vehicle. It was.

An object of the present invention is to provide a trolley connecting device for an automatic guided vehicle, which can connect the trolley to an automatic guided vehicle without any processing on the trolley.

The carriage connecting device for an automated guided vehicle according to claim 1 of the present application
It is a bogie connecting device that connects a bogie (11) provided on an automatic guided vehicle (10) and provided with a side frame (13b) that rises from a mounting portion (13a) on which a load (14) is placed.
A receiving member (17) that is vertically movablely supported by a support member (16) provided on the automatic guided vehicle (10) and can come into contact with the lower surface of the above-described mounting portion (13a).
A first holding member (18) capable of contacting a first side surface (SA) facing the automatic guided vehicle (10) in the side frame (13b) when the carriage (11) is connected.
A second holding member (19) capable of contacting a second side surface (SB) opposite to the first side surface (SA) of the side frame (13b) is provided.
The receiving member (17) supports the lower surface of the above-described resting portion (13a), and the side frame (13b) is sandwiched between the first sandwiching member (18) and the second sandwiching member (19). The dolly (11) is connected to the automatic guided vehicle (10).
The receiving member (17) supports the lower surface of the above-described mounting portion (13a) so as to be able to follow the mutual vertical displacement of the connected carriage (11) and the automatic guided vehicle (10), and the displacement. It is configured to be able to buffer the force that acts with
The first holding member (18) and the second holding member (19) can buffer the force acting due to the displacement of the connected carriage (11) and the automatic guided vehicle in the proximity direction to each other. It is characterized in that it is configured to sandwich (13b).
According to the invention of claim 1, since it is not necessary to process the currently used trolley, it becomes easy to introduce an automatic guided vehicle. Moreover, since the currently used trolley is used as it is, the initial cost when introducing an automatic guided vehicle can be reduced. Further, the lower surface of the mounting portion is supported by a receiving member so as to buffer the force acting due to the mutual vertical displacement of the dolly and the automatic guided vehicle, and the dolly and the automatic guided vehicle are in the close proximity to each other. Since the side frame is sandwiched between a pair of sandwiching members so that the force acting due to displacement can be buffered, the automatic guided vehicle and the dolly are connected in response to the movement of the automatic guided vehicle and the dolly due to changes in the road surface conditions. The part absorbs the movement and does not interfere with the connected state.

In the invention according to claim 2, height adjusting means (26, 27, 28) for adjusting the holding height position of the side frame by the first holding member (18) and the second holding member (19) is provided. It is characterized by that.
According to the invention of claim 2, it is possible to easily switch to trolleys having different heights.

In the invention according to claim 3, the second holding member (19) is separated from the side frame (13b) upward from the connecting position capable of contacting the second side surface (SB) of the side frame (13b). It is characterized by being provided with a hooking member (34) that can be moved between and from the release position.
According to the invention of claim 3, the carriage can be easily connected and disconnected.

The invention according to claim 4 is characterized in that the receiving member (17) is provided with an elastic means (25) that presses the receiving member (17) against the lower surface of the above-mentioned placing portion (13a).
According to the invention of claim 4, even if the automatic guided vehicle and the trolley move up and down in response to a change in the road surface condition on which the automatic guided vehicle and the trolley travel, the movements of both vehicles are mutually transmitted. It suppresses the problem and does not interfere with the connected state.

In the invention according to claim 5, the elastic means (31) for pressing the first holding member (18) supported by the receiving member (17) against the first side surface (SA) of the side frame (13b) is provided. It is characterized by being provided.
According to the invention of claim 5, it is possible to satisfactorily hold the side frame of the carriage with a simple structure. In addition, it is possible to handle trolleys having different side frame thicknesses. Further, the connecting portion absorbs the relative inclination of both vehicles due to the change of the road surface condition on which the automatic guided vehicle and the trolley travel, so that the connected state is not hindered.

In the invention according to claim 6, the second sandwiching member (19) supported by the supporting member (16) is held at a position where the side frame (13b) is sandwiched by the first sandwiching member (18). Possible holding means (37) and
An elastic means (36) for pressing the second holding member (19) at the holding position with the holding means (37) is provided.
According to the invention of claim 6, when a situation occurs in which the automatic guided vehicle approaches the carriage during transportation, the load applied to the carriage connecting device can be suppressed.

According to the present invention, since the trolley can be connected to the automatic guided vehicle by using the trolley currently used as it is without any processing of the trolley, the introduction of the automatic guided vehicle becomes easy.

It is a schematic perspective view which shows the state which the carriage is connected to the automatic guided vehicle by the carriage connecting device. It is a schematic perspective view which shows the bogie connecting device. It is a vertical sectional side view of a main part which shows the state which the bogie is connected to the automatic guided vehicle by the bogie connecting device.

Next, a preferred embodiment of the bogie connecting device for an automatic guided vehicle according to the present invention will be described below with reference to the accompanying drawings.

As shown in FIG. 1, the trolley connecting device of the embodiment is provided on the automatic guided vehicle 10 and connects the trolley 11 to the automatic guided vehicle 10. Therefore, the automatic guided vehicle 10 and the trolley 11 will be described first. To do. The facing direction between the unmanned transport vehicle 10 and the carriage 11 when the carriage 11 is connected to the unmanned transport vehicle 10 by the carriage connecting device (the direction in which the carriage 11 is close to and separated from the side frame 13b described later) is designated as the front-rear direction. The direction that intersects the front-back direction is referred to as the left-right direction.

As shown in FIG. 1, the automatic guided vehicle 10 includes a vehicle body 12 capable of self-propelling on the floor surface of a factory or the like by power supplied from a battery, and the vehicle body 12 is loaded with a weight 14 or the like. The trolleys 11 on which the trolleys are stacked are connected, the surrounding situation is determined by a predetermined control command, and the connected trolleys 11 are carried to a target place. The trolley 11 is provided with a tray-shaped load receiving portion 13, and the load receiving portion 13 is provided with a mounting portion 13a formed in a rectangular shape with a side frame 13b rising around the trolley 11. A plurality of stacks 14 are stacked and mounted on the mounting portion 13a. On the lower side of the load receiving portion 13 (mounting portion 13a), casters 15 are arranged at the four corners thereof so as to be able to run on the floor surface, and the mounting portion 13a is positioned above the floor surface by a predetermined height. To do. Further, between the pair of casters 15 and 15 that are separated from each other in the left-right direction, a space C that allows insertion and removal of the receiving member 17 described later in the bogie connecting device is defined.

The bogie connecting device is provided at any of the front and rear ends of the vehicle body 12. The bogie connecting device is supported by a support member 16 arranged on the vehicle body 12 so as to be movable in the vertical direction, and has a receiving member 17 that can come into contact with the lower surface of the mounting portion 13a of the bogie 11 and the side frame 13b in the front-rear direction. A first sandwiching member 18 and a second sandwiching member 19 that can be sandwiched between the two sandwiching members 18 are provided, and the lower surface of the mounting portion 13a is elastically supported by the receiving member 17 from below, and the side frames 13b are supported by both sandwiching members 18 and 19. Is elastically sandwiched from the front and back so that the carriage 11 can be towably connected to the automatic guided vehicle 10.

As shown in FIG. 1, the bogie connecting device is arranged on the vehicle body 12 by a mounting base 20. The mounting base 20 is a thin plate-shaped member formed in an L shape, and a top surface base 20a extending in the horizontal direction along the upper surface of the vehicle body 12 is placed and fixed on the upper surface of the vehicle body 12, and the top surface base 20a is mounted. The holding base 20b extending downward from one end of the vehicle body 12 is configured to face the front surface of the vehicle body 12. As shown in FIG. 2, a pair of first guides 21 and 21 are arranged on the holding base 20b so as to be separated from each other on the left and right, and the support member 16 is movably supported by the first guides 21 and 21. Will be done.

As shown in FIG. 2, the support member 16 extends horizontally to the erection portion 22 supported by the first guides 21 and 21 so as to be orthogonal to the erection portion 22 and toward the front of the automatic guided vehicle 10. An extension support portion 23 is provided, and a pair of slide members 24, 24 are supported on the extension support portion 23 so as to be movable in the vertical direction. Further, each slide member 24 is supported by a slide guide 22a provided in an upright portion 22 below the extension support portion 23 so as to be movable in the vertical direction, and a slide extending below the slide guide 22a. The receiving member 17 is arranged at the lower ends of the members 24 and 24, and the receiving member 17 moves up and down along the slide guides 22a and 22a integrally with the pair of slide members 24 and 24 with respect to the extension support portion 23. It is configured to be movable in the direction. The receiving member 17 is formed in a width dimension that can be inserted into and removed from the space C between the pair of left and right casters 15 and 15 in the carriage 11, and is a lower receiving portion 17a that faces parallel to the lower side of the extension support portion 23. An introduction portion 17b that is inclined downward is provided at the tip of the lower receiving portion 17a on the extending end side. Further, each slide member 24 extending above the extension support portion 23 is provided with a regulation portion 24a, and the slide members 24, 24 between the regulation portions 24a, 24a and the extension support portion 23 are elastic. Compression springs 25, 25 as means are wound. Then, the receiving member 17 is inserted into the lower side of the load receiving portion 13 of the carriage 11 while compressing the compression springs 25, 25, so that the urging force of the compression springs 25, 25 causes the receiving member 17 to enter the lower surface of the above-mentioned placing portion 13a. It is elastically pressure-welded. That is, the receiving member 17 is pressed against the lower surface of the mounting portion 13a in a state where it can follow the mutual vertical displacement of the automatic guided vehicle 10 and the trolley 11, and the force acting on the vertical displacement. Is configured to be buffered by compression springs 25,25.

As shown in FIG. 3, a screw shaft 26 supported by a bracket 44 and rotatably arranged is erected on the top surface base 20a of the mounting base 20 in the automatic guided vehicle 10, and the screw shaft 26 is It is screwed into the female screw member 27 attached to the upper end of the upright portion 22 of the support member 16. A height adjusting handle 28 is arranged at the upper end of the screw shaft 26, and by rotating the screw shaft 26 in the forward and reverse directions by the height adjusting handle 28, the screw shaft 26 and the female screw member 27 are screwed together. Under the hood, the support member 16 can move up and down along the first guides 21, 21 to adjust the height of the support member 16. Further, as the height of the support member 16 is adjusted, the height of the support member 17 on the lower surface of the bogie, whose upper portion is supported by the support member 16, also changes. The holding height of the side frame 13b by the first holding member 18 and the second holding member 19 supported by the supporting member 16 by each component adjusting the height position of the supporting member 16 with respect to the mounting base 20. A height adjusting means for adjusting the position is configured.

As shown in FIG. 2, a pair of second guides 29, 29 are arranged on the upper surface of the lower receiving portion 17a of the receiving member 17 so as to be separated from each other on the left and right. The first holding member 18 is movably supported in the front-rear direction by the second guides 29 and 29. The first holding member 18 is provided with a first regulation wall 18b that rises at a predetermined height at the front end of the slide portion 18a supported by the second guides 29 and 29, and faces the automatic guided vehicle 10 in the side frame 13b. The first regulation wall 18b faces the outer surface (first side surface) SA of the side frame of the carriage 11. A locking member 30 is arranged on the lower receiving portion 17a, and the first holding member 18 is elastically urged toward the side frame 13b between the locking member 30 and the first regulating wall 18b. The elastic means 31 of 1 is provided. The first regulation wall 18b is pressed against the outer surface SA of the side frame in a state where it can follow the relative displacement of the automatic guided vehicle 10 and the carriage 11 in the front-rear direction when connected to the carriage 11. , The force acting due to the displacement of the two vehicles 10 and 11 in the proximity direction to each other can be buffered by the first elastic means 31. In the embodiment, the first elastic means 31 is composed of two compression springs 31a and 31a as elastic members arranged apart from each other on the left and right. The first holding member 18 is supported by the pair of second guides 29, 29 so that the first regulating wall 18b can allow a slight inclination on one side and the other side in the left-right direction.

As shown in FIG. 2, a pair of third guides 32, 32 are arranged on the extension support portion 23 of the support member 16 so as to be separated from each other on the left and right. The second holding member 19 is supported by a pair of third guides 32, 32 so as to be movable in the front-rear direction. The second holding member 19 is a movable member 33 supported by the third guides 32 and 32, and a hook member 34 rotatably supported around the axis in the left-right direction by the extending end portion of the movable member 33. And. The movable member 33 includes a second regulating wall 33b that rises at a predetermined height behind the slide portion 33a supported by the third guides 32 and 32. Further, a locking member 35 is arranged on the extension support portion 23, and the second holding member 19 is elastically placed between the locking member 35 and the second regulating wall 33b toward the holding means 37 described later. A second elastic means 36 for urging is provided. In the embodiment, the second elastic means 36 is composed of two compression springs 36a, 36a as elastic members separated from each other to the left and right.

The extension support portion 23 is provided with a holding means 37 capable of holding the second holding member 19 at a position where the second holding member 19 is held by the first holding member 18 so as to press the side frame 13b of the carriage 11. As shown in FIGS. 2 and 3, the holding means 37 includes an operation shaft 39 whose lower end is rotatably supported by the extension support portion 23 and whose upper portion is rotatably supported by the bracket 38 and which is erected. It includes a holding handle 40 arranged at the upper end of the shaft 39, and an eccentric cam 41 arranged so as to be integrally rotatable on the operating shaft 39 between the movable member 33 and the bracket 38. The peripheral surface of the eccentric cam 41 faces the wall surface of the second regulation wall 33b, and by rotating the operation shaft 39 with the holding handle 40, the second regulation wall 33b is rearward on the peripheral surface of the eccentric cam 41. The second holding member 19 urged by the second elastic means 36 moves backward against the urging force, and the second regulation wall 33b is pressed against the eccentric cam 41. The movable member 33 is formed with an elongated hole 33c in the front-rear direction through which the operation shaft 39 is inserted, and the movable member 33 is allowed to move back and forth with respect to the operation shaft 39.

As shown in FIGS. 2 and 3, the hooking member 34 has an L shape, and the locking piece 34a has a connecting position (solid line position in FIG. 3) facing the side surface of the side frame 13b of the carriage 11 and a side frame. It is supported by a support shaft 34b at the extending end of the movable member 33 so as to be movable from the release position (two-dot chain line position in FIG. 3) separated upward from 13b, and is rotatably arranged. .. The hooking member 34 has an inner surface (second side surface) SB opposite to the outer surface SA of the side frame, in which the locking piece 34a extends downward at the connecting position and the first holding member 18 faces the first holding member 18 in the side frame 13b. At the release position, the locking piece 34a rotates so as to retract to a position where the carriage 11 can be disengaged. When the locking piece 34a is connected to the carriage 11, the locking piece 34a is held by the holding means 37 at a position where the side frame 13b is sandwiched between the first regulating wall 18b of the first sandwiching member 18. A lock mechanism 42 is provided on one shaft end side of the support shaft 34b. The lock mechanism 42 is configured to be switchable between an allowable position that allows the hook member 34 to rotate and a regulated position that restricts the rotation by operating the lock handle 43. That is, by displacing the lock mechanism 42 to the allowable position, the hook member 34 can move between the connection position and the release position, and by displacing the lock mechanism 42 to the regulated position, the hook member 34 is connected. It is positioned and held in the position or release position. The position of the receiving member 17 with respect to the connecting position of the hooking member 34 is such that the receiving member 17 can enter the lower side of the receiving portion 13 and the receiving portion 13 is in relation to the height dimension of the side frame 13b. The height is set so that when it enters the lower side, it is pressed against the lower surface of the above-mentioned placement portion 13a by the urging force of the compression springs 25, 25. An adjusting means capable of changing the height position of the receiving member 17 with respect to the connecting position of the hooking member 34 may be separately provided.

Next, the operation of the bogie connecting device of the automatic guided vehicle according to the embodiment will be described. By rotating the height adjusting handle 28, the locking piece 34a of the second holding member 19 enters the inside of the side frame 13b of the carriage 11 at the connecting position of the hooking member 34, and the receiver. The elevating position of the support member 16 is adjusted so that the introduction portion 17b of the member 17 has a height that allows contact with the lower edge of the load receiving portion 13. Then, when the automatic guided vehicle 10 with the hooking member 34 positioned at the release position is brought closer to the carriage 11, the receiving member 17 receives the compression springs 25 and 25 while the introduction portion 17b is in contact with the lower edge of the receiving portion 13. It descends against the urging force and enters the lower side of the load receiving portion 13 through the space C. That is, the receiving member 17 that has entered the lower side of the load receiving portion 13 is urged by the urging force of the compression springs 25 and 25 so as to press the lower receiving portion 17a toward the lower surface of the previously described placing portion 13a. After bringing the automatic guided vehicle 10 close to the carriage 11 to a position where the first regulation wall 18b of the first holding member 18 abuts on the outer surface SA of the side frame of the carriage 11, the lock handle 43 is operated to regulate the lock mechanism 42. By displacing the hook member 34 from the position to the allowable position and moving the hook member 34 from the release position to the connecting position, the locking piece 34a of the hook member 34 enters the inside of the side frame 13b, and the side frame 13b Facing the inner SB.

The eccentric cam 41 is moved by the holding handle 40 of the holding means 37 after the lock mechanism 42 is displaced from the allowable position to the regulated position and the hook member 34 is held at the connecting position by operating the lock handle 43. By rotating horizontally, the second regulating wall 33b of the movable member 33 is pushed by the peripheral surface of the eccentric cam 41 and retracts, and the second holding member 19 acts as an urging force of the second elastic means 36. Move backwards against it. As a result, as shown in FIG. 3, the locking piece 34a of the hooking member 34 is pressed against the inner surface SB of the side frame 13b, and the automatic guided vehicle 10 and the carriage 11 are relatively close to each other, and the first The first regulating wall 18b of the holding member 18 is pressed against the outer surface SA of the side frame by the urging force of the first elastic means 31, and the side frame 13b is elastic from the front and back by the first regulating wall 18b and the locking piece 34a. The carriage 11 is connected to the automatic guided vehicle 10 while being sandwiched (to press).

When the automatic guided vehicle 10 to which the carriage 11 is connected by the carriage connecting device is driven, the second regulation wall 33b comes into contact with the eccentric cam 41 of the holding means 37, and the movement to the front (trolley side) is restricted. The carriage 11 is pulled by pulling the side frame 13b with which the locking piece 34a of the second holding member 19 abuts. At the time of this towing, the first holding member 18 is pressed against the outer surface SA of the side frame 13b by the first elastic means 31, so that the inner surface SB of the side frame 13b is separated from the locking piece 34a to the front side. Can be suppressed, and the trolleys 11 can be connected to perform traction satisfactorily. Further, when the automatic guided vehicle 10 travels so as to bend, if the carriage 11 is tilted in the left-right direction with respect to the automatic guided vehicle 10, the first holding member 18 is tilted due to the deformation of the compression springs 31a, 31a. Is absorbed, it is possible to prevent an excessive load from being applied to the carriage connecting device, and the connection state is not hindered. Further, since the receiving member 17 is urged by the compression springs 25 and 25 so as to be pressed against the lower surface of the above-mentioned placing portion 13a, the automatic guided vehicle 10 and the carriage 11 are urged by the inclination and step of the floor surface of a factory or the like. Even when the two swings up and down with each other, the receiving member 17 can elastically support the lower surface of the carriage 11 and pull it satisfactorily. Further, the compression springs 25 and 25 can buffer the force acting due to the mutual vertical displacement of the automatic guided vehicle 10 and the carriage 11, and the change in the movements of the two vehicles 10 and 11 causes the carriage connecting device. It is possible to suppress the application of an excessive load.

When disconnecting the carriage 11 by the carriage connecting device, the eccentric cam 41 is horizontally rotated by the holding handle 40 of the holding means 37, and the peripheral surface of the eccentric cam 41 is moved from the second regulation wall 33b. When separated, the second holding member 19 is urged by the second elastic means 36 to move forward, and the locking piece 34a is separated inward from the inner surface SB of the side frame 13b. Then, by operating the lock handle 43 to displace the lock mechanism 42 from the regulated position to the allowable position and moving the hook member 34 from the connecting position to the releasing position, the connection of the trolley 11 is released and the trolley 11 is released. 11 can be separated from the automatic guided vehicle 10.

Since the trolley connecting device of the embodiment is provided on the automatic guided vehicle 10, the existing trolley 11 can be used as it is without any processing on the trolley 11, so that the automatic guided vehicle 10 can be easily introduced. It becomes. In addition, the initial cost when introducing the automatic guided vehicle 10 can be reduced.

Since the carriage connecting device includes height adjusting means 26, 27, 28 capable of adjusting the holding height position of the side frame 13b by the first holding member 18 and the second holding member 19, the height of the upper end of the side frame It is possible to easily switch to the trolley 11 having a different position. Further, the locking piece 34a of the second holding member 19 whose forward movement is restricted by the holding means 37 abuts on the inner surface SB of the side frame 13b, while the first holding member 18 that can move in the front-rear direction is the first. Since the 1 regulation wall 18b is urged by the first elastic means 31 so as to be pressed against the outer surface SA of the side frame, the side frame 13b of the carriage 11 can be satisfactorily pinched with a simple configuration. Further, since the front-rear position of the first regulation wall 18b of the first holding member 18 urged by the first elastic means 31 can be changed according to the thickness of the side frame 13b, the thickness of the side frame 13b can be changed. It is possible to cope with different trolleys 11 without adjusting. Further, when the carriage 11 is connected, the first sandwiching member 18 sandwiching the side frame 13b of the carriage 11 between the locking piece 34a of the second sandwiching member 19 and the first regulating wall 18b is separated from the side frame 13b. Since the first elastic means 31 urges the carriage 11 in the proximity direction in a state where the movement in the direction is permitted, the displacements of the two vehicles 10 and 11 in the proximity direction when the carriage 11 is towed by the unmanned carrier 10. The force acting in association with the above can be buffered by the first elastic means 31, and it is possible to prevent an excessive load from being applied to the bogie connecting device due to a change in the movements of both vehicles 10 and 11. Further, since the second holding member 19 is also urged in the proximity direction by the second elastic means 36 in a state where the movement in the separation direction with respect to the side frame 13b is allowed, both vehicles 10 and 11 are relatively close to each other. Even when the carriage 11 or the weight 14 comes into contact with the second holding member 19, the force at the time of contact can be buffered by the second elastic means 36, and an excessive load is applied to the carriage connecting device. It can be suppressed from joining.

The second holding member 19 separates the hooking member 34 capable of contacting the inner surface SB of the side frame 13b from the connecting position where the locking piece 34a can contact the inner surface SB upward from the side frame 13b. Since it is movable between the release position and the carriage 11, the carriage 11 can be easily connected and disconnected.

(Change example)
The present invention is not limited to the configuration of Examples and the like, and can be modified as follows, for example. Further, not limited to the following modified examples, various embodiments may be adopted within the scope of the gist of the present invention for the configurations described in the examples and the like.
(1) Instead of manually operating the height adjusting handle 28, the holding handle 40, and the lock handle 43, even if a configuration is adopted in which a motor or other driving means can be connected to those operating parts to perform automatic operation. Good.
(2) Although a compression spring is used to apply a pressing force by the first holding member 18, the second holding member 19, and the receiving member 17, a tension spring or other spring may be used. Further, instead of the spring, an elastic body, an air cylinder, a damper, and various other configurations that can be urged to give a cushioning effect by the members 17, 18, and 19 can be adopted as the elastic means.
(3) The operation of the hooking member 34 and the movement of the second holding member 19 are performed by separate operations, but they are operated simultaneously manually or automatically by using an interlocking mechanism or the like. Is more preferable.

10 automatic guided vehicle, 11 dolly, 13a mounting part, 13b side frame, 14th weight (load)
16 Support member, 17 Receiving member, 18 1st holding member, 19 2nd holding member 20 Mounting base, 25 Compression spring (elastic means), 26 Screw shaft (height adjusting means)
27 Female screw member (height adjustment means), 28 Height adjustment handle (height adjustment means)
31 First elastic means, 34 Hook member, 36 Second elastic means, 37 Holding means SA side frame outer surface (first side surface), SB inner surface (second side surface)

Claims (6)

It is a trolley connecting device that connects trolleys provided on an automatic guided vehicle and provided with a side frame that rises from a loading portion on which cargo is placed.
A receiving member that is movably supported in the vertical direction by a support member provided on the automatic guided vehicle and can come into contact with the lower surface of the above-described mounting portion.
A first holding member capable of contacting a first side surface of the automatic guided vehicle facing the automatic guided vehicle when the carriage is connected.
A second holding member capable of contacting a second side surface of the side frame opposite to the first side surface is provided.
The receiving member supports the lower surface of the above-described resting portion, and the side frame is sandwiched between the first sandwiching member and the second sandwiching member to connect the carriage to the automatic guided vehicle.
The receiving member is configured to support the lower surface of the above-described mounting portion so as to be able to follow the mutual vertical displacement of the connected carriage and the automatic guided vehicle, and to buffer the force acting on the displacement.
The first holding member and the second holding member are configured to hold the side frame so as to be able to buffer the force acting due to the displacement of the connected carriage and the automatic guided vehicle in the proximity direction to each other. A dolly connecting device for automatic guided vehicles. The carriage connecting device for an automatic guided vehicle according to claim 1, wherein a height adjusting means for adjusting the holding height position of the side frame by the first holding member and the second holding member is provided. The second holding member is characterized by including a hooking member that can move between a connecting position that can abut on the second side surface of the side frame and a release position that is separated upward from the side frame. The carriage connecting device for an automatic guided vehicle according to claim 1 or 2. The carriage connecting device for an automatic guided vehicle according to any one of claims 1 to 3, wherein an elastic means for pressing the receiving member against the lower surface of the above-described resting portion is provided. The automatic guided vehicle according to any one of claims 1 to 4, wherein an elastic means for pressing the first holding member supported by the receiving member against the first side surface of the side frame is provided. Cart coupling device. A holding means capable of holding the second sandwiching member supported by the support member at a position where the side frame is sandwiched by the first sandwiching member.
The carriage connecting device for an automatic guided vehicle according to claim 5, wherein an elastic means for pressing the second holding member at the holding position with the holding means is provided.

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