JP2017081657A - Transfer system and automatic warehouse - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a transfer system and an automatic warehouse which facilitate operator's taking in and out a rolling carriage and enable a transfer device to reliably transfer a rolling carriage.SOLUTION: A transfer system 1 comprises stations ST, a transfer device 124 and guide rails 18. The stations ST have loading surfaces 14 to load a rolling carriage 200 with rotatable wheels 202 and can take in and out the rolling carriage 200. The transfer device 124 can lift up and transfer the rolling carriage 200 between the stations ST. The guide rails 18 are installed on the stations ST and regulate rotation of the wheels 202 of the rolling carriage 200 and can be lifted in a manner that changes lengths of upward protrusion from the loading surfaces 14.SELECTED DRAWING: Figure 9

Description

  The present invention relates to a transfer system and an automatic warehouse.

  2. Description of the Related Art Conventionally, there is known a transfer system that includes a station that can carry a rolling cart and a transfer device that can transfer the rolling cart carried in the station. As such a transfer system, for example, Patent Document 1 describes a technique for guiding a wheel of a cage truck that gets into a lifter by providing a wheel guide to a lifter provided at a loading / unloading position.

JP-A-9-86610

  In the prior art as described above, it is desirable that when an operator carries in / out a rolling cart with respect to a station (carrying in and / or carrying out, the same applies hereinafter), the carrying in / out operation can be easily performed. On the other hand, at the time of transfer by the transfer device, it is required to reliably guide the wheels of the rolling cart and to transfer the rolling cart reliably.

  The present invention has been made in view of the above circumstances, and facilitates the loading and unloading of the rolling cart by an operator, and enables the transfer device to reliably transfer the rolling cart. The purpose is to provide a loading system and automatic warehouse.

  A transfer system according to the present invention is a transfer system for transferring a rolling carriage having a turnable wheel, and has a mounting surface on which the rolling carriage is placed. Or a station capable of carrying out, a transfer device capable of lifting and transferring the rolling carriage between the stations, and a guide rail provided at the station for regulating the turning of the wheels of the rolling carriage, The guide rail is configured to be movable up and down so that the protruding length protruding upward from the placement surface changes.

  In this transfer system, the guide rail is configured to be movable up and down. Therefore, when the rolling cart is carried in / out by an operator, for example, the guide rail is lowered to reduce the protruding length, thereby preventing the guide rail from interfering with the loading / unloading operation, thereby making the rolling cart easy. Can be carried in and out. In addition, when the rolling carriage is transferred by the transfer device, for example, the guide rail is raised to ensure a sufficient projection length, so that the wheels are reliably guided by the guide rail and the rolling carriage is reliably transferred. it can. That is, it is possible to facilitate the carrying-in / out of the rolling cart by the operator and to reliably transfer the rolling cart by the transfer device.

  In the transfer system according to the present invention, the guide rail can be moved up and down so that the protrusion length is smaller when the rolling cart is carried in and / or carried out by the operator than when the rolling cart is transferred by the transfer device. May be. In this case, the above-described effects and the effects of facilitating the loading and unloading of the rolling cart by the operator and the reliable transfer of the rolling cart by the transfer device can be suitably exhibited.

  The transfer system according to the present invention controls the operation of the drive unit that raises and lowers the guide rail, and the drive unit, and allows the operator to carry in and / or carry the rolling cart than when the rolling cart is transferred by the transfer device. And a control unit that raises and lowers the guide rail so that the protruding length becomes small during unloading. According to this configuration, it is possible to perform the elevation by controlling the operation of the drive unit by the control unit.

  In the transfer system according to the present invention, the transfer device includes a slide fork that extends in a lower space of the rolling carriage and lifts up the bottom surface of the rolling carriage, and a rolling on which the rolling carriage is placed on the slide fork. And a guide member that is provided on the outer side of the carriage mounting region and restricts the movement of the rolling carriage. In this case, the loading position of the rolling cart by the operator can be corrected by the guide member of the slide fork.

  An automatic warehouse according to the present invention is an automatic warehouse comprising the above transfer system, a rack in which a rolling cart is accommodated, and a stacker crane that travels along a track, and the transfer device is a stacker crane. The rack is provided on one side and the other side through the track, and a plurality of stations are provided at the bottom of the rack, and the station provided on the rack on one side is It is a loading station for loading a moving cart, and a station provided in the other rack is a shipping station for loading a rolling cart.

  Even in this automatic warehouse, it is possible to facilitate the carrying-in / out of the rolling cart by the operator and to reliably transfer the rolling cart by the transfer device. Moreover, in an automatic warehouse, many rolling carts can be carried in and out by using the lowest level of the rack as a station. By positioning the warehousing station and the warehousing station on opposite sides of each other through the track, the direction of the wheels is maintained without changing the direction of the rolling trolley when leaving and leaving the trolley. )be able to.

  ADVANTAGE OF THE INVENTION According to this invention, it becomes possible to carry out loading / unloading of the rolling trolley by an operator, and to reliably transfer the rolling trolley by the transfer device.

It is a perspective view showing typically a part of automatic warehouse concerning one embodiment. It is a top view which shows typically a part of automatic warehouse of FIG. It is a perspective view which shows a rolling trolley typically from below. It is a side view which shows a transfer apparatus typically. It is a top view which shows a station typically. It is a side view which shows typically the time of the guide rail descending in a station. It is a side view which shows typically the time of the raise of the guide rail in a station. It is a side view which shows a fixed block typically. (A) is sectional drawing which follows the AA line of FIG. (B) is sectional drawing which follows the BB line of FIG.

  Hereinafter, embodiments will be described in detail with reference to the drawings. In addition, the same code | symbol is attached | subjected to the same or an equivalent element, and the overlapping description is abbreviate | omitted.

  As shown in FIGS. 1 and 2, the automatic warehouse 100 includes a plurality of racks 101 in which rolling carts 200 are stored, and a stacker crane 102 that travels along a track 51. The automatic warehouse 100 is installed in a building (not shown), for example. The rolling cart 200 is a target to be stored in the rack 101.

  As shown in FIG. 3, the rolling cart 200 is a so-called cart, a cart, or a cart called a roll box pallet, and accommodates a load. The rolling cart 200 may mean not only an empty cart that does not contain a load, but also one that includes a cart and a load contained in the cart.

  The rolling cart 200 includes a main body 201 and wheels 202 attached to the lower portion of the main body 201. The main body 201 is configured such that a fence-like member is erected on the periphery of a rectangular base so as to be opened and closed. The wheel 202 is attached to each of the lower four corners of the main body 201. The wheel 202 is a so-called free caster whose direction (traveling direction) can be freely changed. The wheel 202 can be rotated (rolled) around a rolling axis along the horizontal direction, and can turn around a turning axis along the vertical direction (vertical direction, Z-axis direction in the figure).

  As shown in FIGS. 1 and 2, the plurality of racks 101 include racks 101 </ b> A and 101 </ b> B that are erected on one side and the other side (both sides) with a track 51. The racks 101A and 101B face each other with a predetermined interval. At the lowermost stage of the racks 101A and 101B, a station ST capable of carrying in and out (carrying in and / or carrying out) the rolling cart 200 is provided. Specifically, a storage station ST1 for storing the rolling cart 200 is provided at the bottom of the rack 101A on one side. A delivery station ST2 for delivering the rolling cart 200 is provided at the lowermost stage of the other rack 101B. In the warehouse station ST1, the rolling cart 200 is entered into the automatic warehouse 100 by an operator. At the delivery station ST2, the rolling cart 200 is delivered from the automatic warehouse 100 by an operator.

  A plurality of shelves 31 are provided in each of the racks 101A and 101B. The shelf portion 31 has a pair of placement surface portions 32 on which the wheels 202 of the rolling cart 200 are placed. Each of the pair of placement surface portions 32 has a planar placement surface located on the same horizontal plane. A plurality of shelves 31 are provided along the left-right direction (Y-axis direction in the drawing), and a plurality of shelves 31 are provided along the up-down direction. In the present embodiment, the loading station ST1 and the unloading station ST2 are provided with a loading / unloading shelf 10 including a guide rail 18 that can be moved up and down, which will be described later. At least one of the pair of placement surface portions 32 in the shelf portion 31 is provided with a shelf portion wheel guide (not shown) for guiding the wheels 202 of the rolling cart 200 to be transferred. The shelf wheel guide has a pair of plate-like members that are erected on the placement surface 32 so as to be parallel to each other and aligned in the Y-axis direction. The shelf wheel guide forms a groove portion in cooperation with the placement surface of the placement surface portion 32.

  The stacker crane 102 conveys the rolling cart 200 between the warehousing station ST <b> 1 and the shipping station ST <b> 2 and the shelf 31, and puts the rolling cart 200 in and out of the shelf 31. The stacker crane 102 includes a carriage 121, a mast 122, a lifting platform 123, and a transfer device 124.

  The carriage 121 moves in the left-right direction (Y-axis direction in the figure) along the track 52. The track 52 extends along the left-right direction S between the racks 101A and 101B. The track 52 is laid on the floor surface. The mast 122 extends along the vertical direction, is attached to the carriage 121 and moves together with the carriage 121. The elevator 123 moves up and down along the mast 122.

  The transfer device 124 is a device that can lift and transfer the rolling cart 200 to and from the station ST. Specifically, the rolling cart 200 placed on the loading / unloading shelf 10 of the warehouse station ST1 is lifted to the transfer device 124 and transferred (loaded). The rolling cart 200 mounted on the transfer device 124 is lowered to the loading / unloading shelf 10 of the shipping station ST2 and transferred (unloaded). Further, the transfer device 124 is a device that can lift and move the rolling cart 200 between the racks 31 of the rack 101. Specifically, the rolling cart 200 mounted on the transfer device 124 is lowered to the shelf 31 and transferred. The rolling cart 200 placed on the shelf 31 is lifted and transferred to the transfer device 124.

  As shown in FIG. 4, the transfer device 124 can transfer the rolling cart 200 in a state where the rolling cart 200 is lifted, that is, in a state where the wheels 202 are lifted up. The transfer device 124 is a slide fork type transfer device, and includes a slide fork 124 a that extends in a lower space of the rolling carriage 200 and lifts up the bottom surface of the rolling carriage 200.

  On the slide fork 124a, a guide member 126 is provided outside the rolling table mounting region R on which the rolling cart 200 is mounted. The guide member 126 is a member that regulates the horizontal movement of the rolling cart 200. Here, the guide member 126 is erected on one side and the other side of the rolling table mounting region R in the extending direction of the slide fork 124a (X-axis direction in the drawing). The guide member 126 is disposed at a predetermined clearance from the rolling table on-board placement region R.

  In the present embodiment, a loading / unloading shelf 10 is provided at the loading station ST1 and the loading station ST2 (see FIG. 2). As shown in FIGS. 5 to 7, the loading / unloading shelf 10 includes a pair of placement surface portions 11 </ b> A and 11 </ b> B for placing the rolling cart 200 and one placement surface portion of the placement surface portions 11 </ b> A and 11 </ b> B. And a wheel guide 12 provided on 11B.

  Each of the placement surface portions 11A and 11B has a planar placement surface 14 located on the same horizontal plane. The placement surface portions 11A and 11B extend along the X-axis direction and are juxtaposed at a predetermined distance in the Y-axis direction (a distance corresponding to the distance between the wheels 202 in the Y-axis direction). The placement surface portions 11 </ b> A and 11 </ b> B are fixed to the frame 15.

  The wheel guide 12 guides the rolling cart 200 to be carried in and out, and corrects the rolling cart 200 to suppress unintended movement of the rolling cart 200. The wheel guide 12 is provided from one end of the placement surface portion 11B to the other end. The wheel guide 12 has a pair of plate-like members that are erected on the placement surface portion 11B so as to be parallel to each other and aligned in the Y-axis direction. The wheel guide 12 forms a groove portion in cooperation with the placement surface 14. The width of the groove is set to be slightly larger than the width of the wheel 202 and is set to such a width that the wheel 202 cannot freely turn. The wheel guide 12 regulates the turning of the wheel 202 positioned therein, and maintains the direction of the wheel 202 in the transfer direction (X-axis direction).

  The wheel guide 12 is configured by being divided into a plurality of parts, and includes a first wheel receiving part 16, a second wheel receiving part 17, and a guide rail 18. The 1st wheel receiving part 16 is provided in the one end part of the X-axis direction in the mounting surface part 11B. The 2nd wheel receiving part 17 is provided in the other end part of the X-axis direction in the mounting surface part 11B. The first wheel receiver 16 and the second wheel receiver 17 are fixed to the frame 15. In the groove portions of the first wheel receiving portion 16 and the second wheel receiving portion 17, the wheels 202 of the mounted rolling cart 200 are respectively positioned.

  Although the height of the 1st wheel receiving part 16 is not specifically limited, For example, it is set higher than the height which lifts the rolling trolley | bogie 200 with the transfer apparatus 124, for example. Although the height of the 2nd wheel receiving part 17 is not specifically limited, For example, it is set lower than the height which lifts the rolling trolley | bogie 200 with the transfer apparatus 124. FIG. The tip end portions on the outer side in the X-axis direction of the first wheel receiving portion 16 and the second wheel receiving portion 17 are formed in a tapered shape that is inclined so that the groove width becomes wider toward the outside (see FIG. 5). The wheel guide 12 holds the wheels 202 of the rolling cart 200 in the automatic warehouse 100.

  As shown in FIG. 8, a fixed block 19 that positions the wheels 202 of the mounted rolling cart 200 is provided on the mounting surface portion 11 </ b> B. Here, the fixed block 19 is disposed at a position corresponding to the inside of the groove portion of the first wheel receiving portion 16. The fixed block 19 functions as a stopper that restricts rolling of the wheels 202. The fixed block 19 has a wedge shape and is disposed in front of and behind the wheel 202. The fixed block 19 is set to allow a backlash of about 5 mm, for example. The height of the fixed block 19 is set to be lower than the height at which the rolling carriage 200 is lifted by the transfer device 124.

  As shown in FIGS. 6, 7, and 9, the guide rail 18 is disposed between the first wheel receiving portion 16 and the second wheel receiving portion 17 in the placement surface portion 11 </ b> B, and extends along the X-axis direction. Extend. The upper portion of the guide rail 18 is formed in a tapered shape that is inclined so that the groove width increases as it goes upward (see FIG. 9). Thereby, when the rolling cart 200 is transferred, the direction of the wheel 202 can be adjusted along the transfer direction even when the direction of the wheel 202 is deviated from the transfer direction.

  Here, the guide rail 18 is configured to be movable up and down so that a protruding length (hereinafter simply referred to as “projecting length”) that is a length in the vertical direction protruding upward from the placement surface 14 changes. The guide rail 18 can be moved up and down so that the protrusion length is smaller when the rolling cart 200 is carried in and out by the operator than when the rolling cart 200 is transferred by the transfer device 124.

  Specifically, the guide rail 18 is supported by the frame 15 via a lifting guide 21 and a driving device (driving unit) 22. The elevating guide 21 supports the guide rail 18 and guides the elevating of the guide rail 18 with respect to the frame 15. For example, the elevating guide 21 is attached to both ends of the guide rail 18 in the X direction. The drive device 22 includes a motor (not shown) and an eccentric cam (not shown) connected to the rotation shaft of the motor, and supports the guide rail 18 through the eccentric cam so as to be movable up and down. The guide rail 18 moves in the vertical direction with respect to the frame 15 between the raised position and the lowered position every time the motor of the driving device 22 is rotated by a certain amount (for example, 180 °).

  For example, when the guide rail 18 is in the lowered position and the eccentric cam is rotated by rotating the motor by a certain amount in the driving device 22, the guide rail 18 is guided to the position of the top dead center by the eccentric cam while being guided by the lift guide 21. Ascend (lifted). As a result, the guide rail 18 rises to a raised position that protrudes with a first protruding length (for example, 100 mm) that extends further upward than the first wheel receiving portion 16 and the second wheel receiving portion 17.

  On the other hand, when the guide rail 18 is in the raised position and the eccentric cam is rotated by rotating the motor by a certain amount in the driving device 22, the guide rail 18 is guided by the lifting guide 21 to the position of the bottom dead center by the eccentric cam. Descent. As a result, the guide rail 18 descends to a lowered position where the guide rail 18 protrudes with a second protrusion length (for example, 30 mm) below the first wheel receiver 16 and the second wheel receiver 17. The second protrusion length is smaller than the first protrusion length, in other words, the first protrusion length is larger than the second protrusion length.

  A controller 23 that controls the operation of the drive device 22 is connected to the drive device 22. The control unit 23 raises and lowers the guide rail 18 so that the protrusion length becomes smaller when the rolling cart 200 is carried in and out by the operator than when the rolling cart 200 is transferred by the transfer device 124. Specifically, the control unit 23 determines, for example, whether the guide rail 18 is positioned in the ascending position or the descending position based on a request from a host controller (automatic warehouse controller or the like). Then, the control unit 23 starts the operation of the driving device 22 based on, for example, the position of the guide rail 18 detected by the photoelectric sensor 24 in order to position the guide rail 18 at either the determined ascending position or descending position. / Or stop. In the illustrated example, a photoelectric sensor 24 is provided on the frame 15, and the position of the guide rail 18 is detected by detecting either the upper end or the lower end of a predetermined portion of the guide rail 18 with the photoelectric sensor 24.

  Or you may provide the guide raising / lowering switch (elevation operation part) which an operator operates raising / lowering of the guide rail 18, and the control part 23 performs operation | movement of the drive device 22 according to operation of a guide raising / lowering switch in this case. The guide rail 18 is moved up and down to either the raised position or the lowered position according to the operation of the guide raising / lowering switch.

  In the above, at least the station ST (the entry station ST1 or the exit station ST2), the transfer device 124, the guide rail 18, the drive device 22, and the control unit 23 constitute the transfer system 1. That is, the automatic warehouse 100 includes the transfer system 1. In addition, each structure or each element with which the automatic warehouse 100 is provided can also be understood as being provided with the transfer system 1.

  Next, operations performed in the transfer system 1 and the automatic warehouse 100 will be described. In the following description, when an operator loads and unloads the rolling cart 200 into and out of the station ST, and when transferring the rolling cart 200 mounted on the station ST by the transfer device 124, Each is illustrated.

[When carrying in / out]
First, for example, based on the transfer status of the stacker crane 102 and / or the mounting state of the rolling cart 200 at the station ST, a request for lowering the guide rail 18 from the host controller to the control unit 23 to the lowered position. Is output. Alternatively, the operator performs an operation of lowering the guide rail 18 via the guide lift switch, and a request to lower the guide rail 18 is output from the guide lift switch to the control unit 23. The status and state of the stacker crane 102 and / or the station ST can be detected by, for example, a camera, a light shielding sensor, a limit switch, or the like.

  In response to the request, the control unit 23 controls the operation of the driving device 22 to project the guide rail 18 in the raised position with a second projecting length that projects upward from the mounting surface 14 to such an extent that the wheel 202 can be guided. The lowering position is lowered (see FIGS. 6 and 9A). In this state, the operator carries the rolling cart 200 as it is into the station ST without placing it on a dedicated pallet or the like, and places the rolling cart 200 on the placement surface portions 11A and 11B of the station ST. Each wheel 202 of the rolling carriage 200 enters the wheel guide 12 from the second wheel receiving portion 17, reaches the first wheel receiving portion 16 while being guided by the guide rail 18, and is positioned by the fixed block 19. In addition, since the taper shape is formed so that the outer side in the X direction of the second wheel receiving portion 17 expands when the rolling cart 200 is carried in, the direction of the wheel 202 is determined regardless of which direction the wheel 202 faces. Can be adjusted along the transfer direction.

[When transferring by transfer equipment]
First, for example, based on the transfer status of the stacker crane 102 and / or the mounting state of the rolling carriage 200 at the station ST, a request to raise the guide rail 18 from the host controller to the control unit 23 to the raised position. Is output. Alternatively, the operator performs an operation to raise the guide rail 18 via the guide raising / lowering switch, and a request to raise the guide rail 18 is output from the guide raising / lowering switch to the control unit 23.

  In response to the request, the control unit 23 controls the operation of the driving device 22 so that the guide rail 18 in the lowered position protrudes upward from the placement surface 14 with a first protrusion length that can reliably control the turning of the wheel 202. It raises to the ascending position (see FIGS. 7 and 9B). In this state, the slide fork 124 a of the transfer device 124 extends in the lower space of the rolling carriage 200, and the rolling carriage 200 is lifted so as to crawl the bottom surface of the rolling carriage 200. The lifting of the rolling carriage 200 may be realized by the elevator 123 of the stacker crane 102 or may be realized by an elevator structure provided separately in the transfer device 124. At this time, since the outer side in the X direction of the first wheel receiving part 16 is tapered, a slight positional deviation of the transfer device 124 can be allowed. Thereafter, the transfer device 124 transfers the rolling cart 200 toward the shelf 31 in a state where the rolling cart 200 is lifted.

  As described above, in the transfer system 1 of the present embodiment, the guide rail 18 that restricts the turning of the wheels 202 of the rolling cart 200 is provided at the station ST where the rolling cart 200 can be carried in and out. The guide rail 18 is configured to be movable up and down so that the protruding length from the mounting surface 14 changes. Therefore, when the rolling cart 200 is carried in and out by an operator, for example, the guide rail 18 is lowered to reduce the protruding length, thereby preventing the guide rail 18 from interfering in the loading and unloading work. 200 can be carried in and out easily. When the rolling cart 200 is transferred by the transfer device 124, the rolling cart 200 is lifted by the transfer device 124 by, for example, raising the guide rail 18 to ensure a sufficient protrusion length. However, the wheel 202 can be reliably guided by the guide rail 18 and the rolling cart 200 can be reliably transferred. That is, it is possible to facilitate the carrying-in / out of the rolling cart 200 by an operator and to reliably transfer the rolling cart 200 by the transfer device 124.

  In the transfer system 1, the guide rail 18 can be moved up and down so that the protrusion length becomes smaller when the rolling cart 200 is carried in and out by the operator than when the rolling cart 200 is transferred by the transfer device 124. Yes. Thereby, while the operator can easily carry the rolling cart 200 in and out, the above-described effect of reliably transferring the rolling cart 200 by the transfer device 124 can be suitably exhibited.

  The transfer system 1 includes a drive device 22 that moves the guide rail 18 up and down, and a control unit 23 that controls the operation of the drive device 22. According to this configuration, the control unit 23 controls the operation of the drive device 22 as described above, so that the operator can carry the rolling cart 200 in and out more than when the rolling cart 200 is transferred by the transfer device 124. It is possible to raise and lower the guide rail 18 that sometimes reduces the protruding length.

  In the transfer system 1, the transfer device 124 includes a slide fork 124 a that lifts the rolling carriage 200 so as to crawl the bottom surface of the rolling carriage 200, and a guide member 126 provided on the slide fork 124 a. . Even when the loading position of the rolling cart 200 by the operator is deviated from, for example, the rolling table mounting region R by the guide member 126 of the slide fork 124a, the rolling cart 200 is mounted on the rolling table mounting region R. It can correct so that it may be mounted in R.

  The automatic warehouse 100 includes a transfer system 1, a stacker crane 102 that travels along a track 51, and racks 101 </ b> A and 101 </ b> B on both sides via the track 51. A warehouse station ST1 is provided at the bottom of the rack 101A, and a warehouse station ST2 is provided at the bottom of the rack 101B. In this way, by using the lowermost stage of the racks 101A and 101B as the stations ST1 and ST2, a large number of rolling carts 200 can be easily carried in and out. By positioning the entry station ST1 and the exit station ST2 on opposite sides of each other via the track 51, the direction of the wheels 202 is maintained without changing the direction when the rolling cart 200 enters and exits (the rolling cart 200 is moved). Easy direction).

  As mentioned above, although embodiment of this invention was described, this invention is not limited to the said embodiment. The configuration, number, shape, and the like of each element are not limited to the configuration, number, shape, and the like in the above-described embodiment, and can be changed as appropriate.

  In the above embodiment, the drive device 22 that raises and lowers the guide rail 18 is provided. However, instead of or in addition to the drive device 22, a manual mechanism that manually operates the guide rail 18 by an operator's operation is provided. Also good. For example, a configuration including one or a plurality of gears and an operation lever may be adopted as the manual mechanism. According to the manual mechanism, the operator can raise and lower the guide rail 18 manually. In the above embodiment, the station ST is provided at the bottom of the racks 101A and 101B. However, for example, in the case of a rack straddling a plurality of floors, the station ST may be provided on each floor.

  DESCRIPTION OF SYMBOLS 1 ... Transfer system, 14 ... Mounting surface, 18 ... Guide rail, 22 ... Drive apparatus (drive part), 23 ... Control part, 51 ... Track, 100 ... Automatic warehouse, 101, 101A, 101B ... Rack, 102 ... Stacker crane, 124 ... Transfer device, 124a ... Slide fork, 126 ... Guide member, 200 ... Rolling carriage, 202 ... Wheel, R ... Rolling carriage mounting area, ST ... Station, ST1 ... Receiving station, ST2 ... Exit station.

Claims (5)

A transfer system for transferring a rolling carriage having a rotatable wheel,
A station having a mounting surface on which the rolling cart is mounted and capable of carrying in and / or unloading the rolling cart;
A transfer device capable of lifting and transferring the rolling carriage to and from the station;
A guide rail that is provided at the station and regulates the turning of the wheel of the rolling carriage,
The said guide rail is a transfer system comprised so that raising / lowering is possible so that the protrusion length which protrudes upwards from the mounting surface may change.   The guide rail can be moved up and down so that the protruding length becomes smaller when the rolling cart is carried in and / or carried out by an operator than when the rolling cart is transferred by the transfer device. The transfer system according to claim 1. A drive unit for raising and lowering the guide rail;
The guide rail is controlled to control the operation of the drive unit so that the protrusion length is smaller when the rolling cart is carried in and / or out by an operator than when the rolling cart is transferred by the transfer device. The transfer system according to claim 2, further comprising a control unit that moves up and down. The transfer device is
A slide fork that extends in a lower space of the rolling carriage and lifts up the bottom surface of the rolling carriage;
4. The guide member according to claim 1, further comprising a guide member that is provided on an outer side of the rolling base on-vehicle placement area on which the rolling carriage is placed in the slide fork, and that regulates movement of the rolling carriage. The transfer system according to one item. The transfer system according to any one of claims 1 to 4,
A rack in which the rolling cart is accommodated;
An automatic warehouse comprising a stacker crane that travels along a track,
The transfer device is movable along the track by the stacker crane,
The rack is provided on one side and the other side through the track,
A plurality of the stations are provided at the bottom of the rack,
The station provided in the rack on one side is a warehousing station for warehousing the rolling cart,
The said station provided in the said rack of the other side is an automatic warehouse which is a delivery station which delivers the said rolling cart.

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