JP2019131405A - Automatic warehouse system - Google Patents

Abstract

To provide an automatic warehouse system which can store cargo with high storage efficiency in the height direction while minimizing the need to shorten intervals in the height direction of an entrance/exit.SOLUTION: An automatic warehouse system comprises: first carriages 14; storage parts 26 of multiple stages arranged in the height direction; tracks which correspond respectively to N-th (N is 1 or a greater integer) and (N+1)-th stage storage parts and allow the first carriages 14 to move thereon; and first and second support members which correspond respectively to N-th and (N+1)-th stage first tracks 40 and support the first tracks 40. The storage part 26 has an external entrance/exit part 24a through which an external carrier device allows cargo 12 to enter or exit. The first support member is disposed more closely to the external entrance/exit part 24a than the second support member is. A distance d1 in the height direction from a placement surface 30a, on which the cargo 12 in the N-th stage storage part 26 is placed, to the (N+1)-th stage first support member is longer than a distance d2 in the height direction therefrom to the (N+1)-th stage second support members.SELECTED DRAWING: Figure 10

Description

  The present invention relates to an automatic warehouse system.

  2. Description of the Related Art As a warehouse system that can efficiently store and retrieve a large number of loads in a small space, an automatic warehouse system that transports loads using a cart to a three-dimensional automatic warehouse is known. For example, in Patent Document 1, a storage shelf that can store a plurality of articles is arranged, a travel rail that can access the storage rack is laid, and the transport rail that can travel on the travel rail is used to carry in / The warehouse to be taken out is listed.

JP, 2015-157683, A

  Some automatic warehouse systems use an external transfer device such as a forklift to load an external load into a storage section of a storage shelf and unload the load from the storage section. In this case, if each doorway for carrying in / out is widened in the height direction, the interval in the height direction of the load in the storage shelf is widened, and the load accommodation efficiency is lowered. On the other hand, when the load height efficiency in the storage shelf is narrowed to increase the load storage efficiency, the entrance becomes narrower in the height direction, and when the load is lifted by a forklift during loading and unloading In order to avoid the upper part of the vehicle from colliding with the shelf, there is a possibility that problems such as difficulty in operating the forklift may occur.

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide an automatic warehouse system that can store loads with high accommodation efficiency in the height direction without shortening the distance in the height direction of the entrance and exit as much as possible. There is to do.

  In order to solve the above-described problems, an automatic warehouse system according to an aspect of the present invention is provided on each of a cart for transporting a load, a plurality of shelves provided in a height direction, and each of a plurality of shelves. And a rail for moving the carriage in the first direction, and a plurality of support members arranged side by side along the first direction in the stage of one shelf, and supporting the rail. The support member closest to the end in the first direction is provided such that the position in the height direction is higher than the other support members.

  Another aspect of the present invention is also an automatic warehouse system. The automatic warehouse system includes a cart for transporting loads, a shelf provided in a plurality of stages in the height direction, and a rail provided on each of the plurality of shelves for moving the carriage in the first direction. And a plurality of support members that are provided in each of the plurality of shelves and support the rail. The distance in the height direction from the placement surface of one shelf to the support member on the most end side among the plurality of support members that support the shelf adjacent to the upper side of the shelf is from the placement surface. It is longer than the distance in the height direction to the other support members among the plurality of support members that support the adjacent shelf portions.

  Note that any combination of the above-described constituent elements, and those obtained by replacing the constituent elements and expressions of the present invention with each other among methods, apparatuses, systems, etc. are also effective as an aspect of the present invention.

  ADVANTAGE OF THE INVENTION According to this invention, the automatic warehouse system which can store a load with the high accommodation efficiency in the height direction, without shortening the space | interval of the height direction of an entrance / exit as much as possible can be provided.

1 is a side view schematically showing an automatic warehouse system according to an embodiment. It is a top view which shows arrangement | positioning of the storage shelf of the automatic warehouse system which concerns on embodiment. 1 is a side view schematically showing an automatic warehouse system according to an embodiment. It is a front view which shows arrangement | positioning of the storage shelf of the automatic warehouse system which concerns on embodiment. It is a top view which shows a 1st trolley | bogie roughly. It is a front view which shows a 1st trolley | bogie and its periphery. It is a top view which shows a 2nd trolley | bogie roughly. It is a side view of the 2nd trolley. It is a side view which shows the 1st storage shelf of the automatic warehouse system which concerns on a comparative example. It is a side view which shows the 1st storage shelf of this Embodiment. It is a side view which shows the modification of a 1st storage shelf. It is a side view which shows the other modification of a 1st storage shelf.

  Hereinafter, the same or equivalent components, members, and processes shown in the drawings are denoted by the same reference numerals, and repeated descriptions are appropriately omitted. In addition, the dimensions of the members in each drawing are appropriately enlarged or reduced for easy understanding. Also, in the drawings, some of the members that are not important for describing the embodiment are omitted.

  FIG. 1 is a plan view schematically showing an automatic warehouse system 100 according to an embodiment. FIG. 2 is a plan view showing the arrangement of the storage shelves 20 of the automatic warehouse system 100. FIG. 3 is a side view schematically showing the automatic warehouse system 100. FIG. 4 is a side view showing the arrangement of the storage shelves 20 of the automatic warehouse system 100. In these drawings, descriptions of columns and beams that are not important for explanation are omitted, and the same applies to the following drawings.

  For convenience of explanation, as shown in the figure, an XYZ orthogonal coordinate system in which a certain horizontal direction is the X-axis direction, a horizontal direction orthogonal to the X-axis direction is the Y-axis direction, and a direction orthogonal to both, that is, the vertical direction is the Z-axis direction. Determine. In the following description, an XYZ orthogonal coordinate system will be used, but the X-axis direction, the Y-axis direction, and the Z-axis direction do not necessarily have to be orthogonal to each other as long as they intersect at about 90 degrees. The positive direction of each of the X axis, Y axis, and Z axis is defined in the direction of the arrow in each figure, and the negative direction is defined in the direction opposite to the arrow. Further, the positive direction side of the X axis may be referred to as “right side”, and the negative direction side of the X axis may be referred to as “left side”. Also, the positive direction side of the Y axis may be referred to as “front side”, the negative direction side of the Y axis as “rear side”, the positive direction side of the Z axis as “upper side”, and the negative direction side of the Z axis as “lower side”. is there. Such notation of the direction does not limit the configuration of the automatic warehouse system 100, and the automatic warehouse system 100 can be used in any configuration depending on the application.

  The automatic warehouse system 100 is a system including a storage shelf 20 that can store a large number of loads 12. In this embodiment, the load 12 is handled in a state of being placed on the pallet 12p. However, the present invention is not limited to this, and the load 12 may be handled alone without using the pallet. In addition, conveying the load 12 on the pallet 12p is simply referred to as conveying the load 12.

  The automatic warehouse system 100 includes a first storage shelf 20a, a second storage shelf 20b, a first carriage 14, a second carriage 16, a first rail 40, a second rail 42, a third rail 44, The mounting table 30 and the control unit 18 are included. When the first storage shelf 20a and the second storage shelf 20b are not particularly distinguished, they are referred to as “storage shelf 20”. Further, when the first cart 14 and the second cart 16 are not distinguished, they are called “carts”. Further, the first carriage 14, the second carriage 16, the first rail 40, the second rail 42, and the third rail 44 are collectively referred to as an “internal transport mechanism”.

  The 1st storage shelf 20a and the 2nd storage shelf 20b are arrange | positioned so that the 3rd rail 44 may be pinched | interposed. Each storage shelf 20 is a high-density storage type storage space that cannot store a large number of loads 12. The configuration of each storage shelf 20 is not particularly limited as long as a plurality of loads 12 can be accommodated and stored. In this example, each storage shelf 20 includes a plurality of (for example, three) storage stages 22 stacked in layers in the vertical direction. Each storage stage 22 includes a plurality of (for example, six) storage rows 24 arranged in the Y-axis direction, and each storage row 24 includes a plurality of (for example, three) storage units 26 connected in the X-axis direction. . The storage unit 26 is a unit for storing the load 12.

  At the end of each storage row 24 of the first storage shelf 20a opposite to the second storage shelf 20b (left side), an external for passing the load 12 carried in from the outside of the warehouse or carried out of the warehouse An entrance / exit 24a is provided. In addition, the end of the storage row 20 of each storage shelf 20 on the other storage shelf 20 side passes the load 12 transported from the other storage shelf 20 or transported to the other storage shelf 20. An internal doorway 24b is provided.

  The automatic warehouse system 100 is provided with a work space 60 in which an external transfer device such as a forklift works. The work space 60 is a space provided on the opposite side of the first storage shelf 20a from the second storage shelf 20b and is a space facing the external entrance / exit part 24a of each storage row 24. The work space 60 has a three-dimensional size such that the external transport device can carry the load 12 into the first storage shelf 20a and carry the load 12 out of the first storage shelf 20a. That is, the work space 60 has an X-axis direction dimension, a Y-axis direction dimension, and a Z-axis direction dimension that allow the load 12 to be loaded and unloaded. The X-axis direction dimension, the Y-axis direction dimension, and the Z-axis direction dimension of the work space 60 may be set larger than those of the first storage shelf 20a. By having the work space 60, the loading and unloading of the load 12 are facilitated, and the work efficiency is improved.

  The first rail 40 is provided corresponding to each storage row 24. The first rail 40 extends in the X-axis direction in the storage row 24. The second rail 42 extends in the X-axis direction on the second carriage 16. The third rail 44 extends in the Y-axis direction between the first storage shelf 20a and the second storage shelf 20b. When the 1st rail 40, the 2nd rail 42, and the 3rd rail 44 are named generically, it may only be called a rail. The rail is a member or a part having a traveling surface of a wheel configured to travel the carriage in the extending direction.

  FIG. 5 is a plan view schematically showing the first carriage 14. FIG. 6 is a front view showing the first carriage 14 and its surroundings. FIG. 6 shows a state in which the first carriage 14 travels on the first rail 40.

  The automatic warehouse system 100 further includes a plurality of vertical columns 36 extending in the Z-axis direction and a plurality of horizontal beams 38 extending in the Y-axis direction. The plurality of vertical columns 36 and the plurality of cross beams 38 form a framework of the storage shelf 20. The first rail 40 is mainly supported by the cross beam 38. The mounting table 30 is located above the first rail 40 and is connected to the first rail 40 via the connection member 50.

  The first carriage 14 travels in the X-axis direction on the traveling surface 40 a that is the upper surface of the first rail 40 in the storage row 24 in order to transport the load 12. The first carriage 14 puts the load 12 in and out of the storage unit 26. The first carriage 14 travels in the X-axis direction on a traveling surface 42 f (described later) of the second rail 42 provided on the second carriage 16 in order to get on and off the second carriage 16.

  The first carriage 14 mainly includes a vehicle body 14b, a lifting platform 14c, a lift mechanism 14d, and a plurality of (for example, four) wheels 14f. The vehicle body 14b has a substantially rectangular parallelepiped outline that is flat in the vertical direction. A motor (not shown) for driving the plurality of wheels 14f and a control circuit (not shown) for controlling the motor are mounted inside the vehicle body 14b. The first carriage 14 may be configured to incorporate a battery and drive the motor with the electric power of the battery.

  The lifting platform 14 c is a portion that lifts and holds the load 12. The lift mechanism 14d is a mechanism that raises and lowers the lifting platform 14c. In FIG. 6, the lifting platform 14 c indicated by the symbol P is in the raised state, and the lifting platform 14 c indicated by the symbol Q is in the lowered state. As indicated by reference symbol P, the lift mechanism 14 d can lift the lifting platform 14 c and lift the load 12 from the mounting surface 30 a that is the upper surface of the mounting table 30. The lift mechanism 14 d can lower the elevating table 14 c and lower the load 12 onto the mounting surface 30 a of the mounting table 30. The plurality of wheels 14 f travel on the first rail 40 and the second rail 42.

  FIG. 7 is a plan view schematically showing the second carriage 16. FIG. 8 is a side view of the second carriage 16. The second carriage 16 travels on the third rail 44 in the Y-axis direction. The second carriage 16 conveys the first carriage 14 in an empty state or a state in which the load 12 is loaded. The second carriage 16 mainly includes a vehicle body 16b, a loading portion 16c, a second rail 42, and a plurality of wheels 16f. The vehicle body 16b has a substantially rectangular parallelepiped outline that is flat in the vertical direction. A motor (not shown) that drives each wheel 16f and a control circuit (not shown) that controls the motor are mounted inside the vehicle body 16b. The wheel 16f travels on the third rail 44.

  The loading portion 16c is formed to be depressed downward from the upper surface of the vehicle body 16b in order to place the first carriage 14. The size of the loading portion 16c is a size obtained by adding a sufficient amount of margin to the size of the first carriage 14 so that the first carriage 14 can travel in the X-axis direction without interfering with the surroundings of the loading portion 16c. Is done. A second rail 42 is provided on the stacking portion 16c. The first carriage 14 travels on the second rail 42. The second rail 42 has a pair of running surfaces 42f extending in the X-axis direction. Between the pair of traveling surfaces 42f of the stacking portion 16c, there is an intermediate portion 16g that is retracted downward from the traveling surface 42f. If necessary, the intermediate portion 16g may protrude upward from the traveling surface 42f, or may be the same height as the traveling surface 42f.

  Returning to FIG. 1, the control unit 18 controls the operations of the first carriage 14 and the second carriage 16 based on the operation result from the user. The control unit 18 can be configured to include, for example, a CPU (Central Processing Unit).

  The operation of the automatic warehouse system 100 configured as described above will be described. The load 12 from the outside of the warehouse is carried into the storage unit 26 facing the external entrance / exit part 24a from the external entrance / exit part 24a by an external transfer device such as a forklift. The automatic warehouse system 100 transports and stores the loaded cargo 12 to a predetermined storage unit 26 by an internal transport mechanism including the first cart 14 and the second cart 16. The automatic warehouse system 100 transports the load 12 stored in the predetermined storage unit 26 to the storage unit 26 facing the external entrance / exit 24a by an internal transport mechanism. The conveyed load 12 is carried out of the warehouse by an external conveyance device.

  Next, the configuration around the external doorway 24a will be described in more detail.

  First, a comparative example will be described. FIG. 9 is a side view showing a first storage shelf 20a of an automatic warehouse system according to a comparative example to be compared with the present embodiment. Each of the first rails 40 at each stage is supported by a plurality of four transverse beams (support members) of the first transverse beam 38a to the fourth transverse beam 38d in this example. The first transverse beam 38a, the second transverse beam 38b, the third transverse beam 38c, and the fourth transverse beam 38d are arranged in this order from the external entrance / exit port 24a in the X-axis direction, and extend in the Y-axis direction. The first transverse beam 38a, the second transverse beam 38b, the third transverse beam 38c, and the fourth transverse beam 38d are positioned below the first rail 40 and support the first rail 40 from below.

  In this comparative example, the distance d1 from the mounting surface 30a of the Nth (N is an integer equal to or greater than 1) stage mounting table 30 to the lower surface 38aa of the first transverse beam 38a that supports the (N + 1) th stage first rail 40. Are the lower surfaces 38ba, 38ca, 38da of the second transverse beam 38b, the third transverse beam 38c, and the fourth transverse beam 38d that support the (N + 1) -th first rail 40 from the placement surface 30a of the N-th placement table 30. It becomes the same as the distance d2.

  Next, this embodiment will be described. FIG. 10 is a side view showing the first storage shelf 20a of the present embodiment. In the present embodiment, the second transverse beam 38b, the third transverse beam 38c, and the fourth transverse beam 38d are located below the first rail 40 and support the first rail 40 from below, as in the comparative example.

  Unlike the comparative example, the first transverse beam 38a is located on the left side of the first rail 40, and the lower surface 38aa is the lower surface 38ba, 38ca of the second transverse beam 38b, the third transverse beam 38c, and the fourth transverse beam 38d. It arrange | positions so that it may be located above 38da. The first transverse beam 38 a supports the first rail 40 via the support bracket 48. Further, the upper surface 38ab of the first transverse beam 38a is positioned above the traveling surface 40a that is the upper surface of the first rail 40 and lower than the mounting surface 30a that is the upper surface of the mounting table 30.

  The support bracket 48 includes a first portion 48a that is positioned below the first rail 40 and supports the first rail 40, a second portion 48b that contacts the upper surface of the first transverse beam 38a, a first portion 48a, and a second portion. A third portion 48c connecting the portion 48b; The lower surface 48aa of the first portion 48a is located above the lower surfaces 38ba, 38ca, 38da of the second transverse beam 38b, the third transverse beam 38c, and the fourth transverse beam 38d, and preferably the lower surface of the first transverse beam 38a as shown in the figure. It is located above 38aa.

  In the present embodiment, the distance d1 from the mounting surface 30a of the Nth stage mounting table 30 to the lower surface 38aa of the first transverse beam 38a that supports the (N + 1) th stage first rail 40 is the Nth stage mounting stage. It is longer than the distance d2 from the mounting surface 30a of the mounting table 30 to the lower surfaces 38ba, 38ca, 38da of the second horizontal beam 38b, the third horizontal beam 38c, and the fourth horizontal beam 38d that support the (N + 1) -th first rail 40. Become. In addition, when the lower surface of the 1st part of a bracket is located below the lower surface of a 1st cross beam, the distance to the lower surface of the 1st part of a bracket becomes the distance d1.

  The distance d3 from the external entrance / exit part 24a in the X-axis direction of the second transverse beam 38b is more specifically, from the end face 40b on the external entrance / exit part 24a side of the first rail 40 to the external entrance / exit part 24a side of the second transverse beam 38b. The distance d3 in the X-axis direction to the side surface 38bb is arranged to be longer than the assumed length L of the load 12 in the X-axis direction. As in the illustrated example, the interval w1 between the first transverse beam 38a and the second transverse beam 38b is set to the interval w2 between the other transverse beams, specifically, the interval w2 between the second transverse beam 38b and the third transverse beam 38c or the third This may be realized by making the distance w2 wider than the horizontal beam 38c and the fourth horizontal beam 38d. Note that the assumed length L of the load 12 in the X-axis direction may be the length of the pallet 12p in the X-axis direction.

Hereinafter, based on this, the effect of this embodiment will be described. When the external transport device 70 is a forklift, it is difficult to accurately operate the height of the fork of the forklift. Therefore, the height of the external entrance / exit portion 24a with respect to the load 12 is prevented so that the load 12 does not contact the first transverse beam 38a. I want to increase the margin of direction to some extent. Specifically, it is desired to increase the distance d1. On the other hand, according to the present embodiment, the distance d1 can be made longer than that of the comparative example while the distance d2 is made the same as that of the comparative example. In other words, the distance d1 can be made longer than that of the comparative example, while the height-direction intervals of the mounting tables 30 at the respective stages are the same as those of the comparative example. Furthermore, in other words, the margin in the height direction of the external entrance / exit part 24a with respect to the load 12 can be increased without reducing the accommodation efficiency of the load 12 in the height direction. In this case, when the load 12 is carried in or out by the forklift, it is possible to prevent the load 12 from coming into contact with the first transverse beam 38a.
On the other hand, according to the present embodiment, if the margin in the height direction of the external entrance / exit part 24a with respect to the load 12 is made comparable to the comparative example, that is, the distance d1 is made equivalent to the distance d1 in the comparative example. In addition, the interval in the height direction of the stage 30 can be narrower than that of the comparative example, and the upper limit of the number of the storage shelves 20 based on the height of the ceiling of the building can be increased as compared with the comparative example. . As the number of storage shelves 20 increases, the number of storage units 26 (the number of storage rows 24) × (the number of storage units 26 included in each storage row 24) increases at a stretch, and the storage efficiency of the storage shelves 20 is greatly increased. improves.
On the other hand, in the comparative example, in order to increase the margin in the height direction of the external entrance / exit part 24a with respect to the load 12, it is necessary to raise the height position of each lateral beam 38, and then the height direction of the mounting table 30 at each stage The space between the two becomes wider, and the accommodation efficiency decreases.

  Further, in the present embodiment, when the width of the external entrance / exit part 24a is made comparable to that in the comparative example, the interval in the height direction of the mounting table 30 becomes smaller than that in the comparative example. That is, it is possible to increase the accommodation efficiency of the load 12 in the height direction while making the margin in the height direction of the external entrance / exit part 24a with respect to the load 12 the same as in the comparative example. In this case, the distance d2 is shorter than that of the comparative example, but the first carriage 14 can raise and lower the load 12 with high accuracy by the lift mechanism 14d, so that there is a problem even if there is a relatively small margin in the height direction. Must not.

In the present embodiment, since the first horizontal beam 38a is positioned above the travel surface of the first rail 40, the first cart 14 is regulated by the first horizontal beam 38a so as not to fall from the external entrance / exit part 24a. The That is, the 1st cross beam 38a functions as a suppression member which suppresses that the 1st cart 14 falls from the external entrance / exit part 24a. In addition, since the 1st horizontal beam 38a is located below the mounting surface 30a of the mounting base 30, carrying in / out of the load 12 is not inhibited.
On the other hand, in the comparative example, the first cart 14 may fall from the external entrance / exit part 24a. In the comparative example, in order to suppress the first cart 14 from falling from the external entrance / exit 24a, it is necessary to prepare a suppression member separately.

  Further, in the present embodiment, the second horizontal beam 38b is arranged so that the distance d3 from the external entrance / exit portion 24a in the X-axis direction is longer than the length L in the X-axis direction of the load 12 that is assumed. The load 12 can be prevented from coming into contact with the second transverse beam 38b when the load 12 is carried in or carried out by the external transfer device 70. In the present embodiment, the interval w1 between the first transverse beam 38a and the second transverse beam 38b may be made wider than the interval w2 between the other transverse beams. In this case, the distance w1 between the first lateral beam 38a and the second lateral beam 38b can be made relatively wide while the distance w2 between the other lateral beams is made relatively narrow so as to satisfy the strength required as a storage shelf. Even if the load 12 has a relatively long length L in the axial direction, it can be prevented from contacting the second transverse beam 38b.

  The configuration and operation of the automatic warehouse system according to the embodiment have been described above. This embodiment is an exemplification, and it will be understood by those skilled in the art that various modifications can be made to combinations of the respective constituent elements and processing processes, and such modifications are also within the scope of the present invention. is there. A modification is shown below.

  In the description of the embodiment, an example in which both the first carriage 14 and the second carriage 16 are provided is shown, but the present invention is not limited to this. The configuration may be such that only the first carriage 14 is provided and the second carriage 16 is not provided. In this case, the first rail 40 in each row may not be divided on the left side and the right side of the second carriage 16 as shown in FIG. 1, and may be constituted by a continuous member.

  In the description of the embodiment, the example in which the second carriage 16 is not provided with the lifting mechanism is shown, but the present invention is not limited to this. For example, the second carriage may be a stacker crane having a lifting mechanism. In this case, the load 12 can be conveyed in the Y-axis direction and moved up and down.

  In the description of the embodiment, the example in which the second carriage 16 moves only in the Y-axis direction and does not move in the vertical direction is shown, but the present invention is not limited to this. For example, an elevating device that raises and lowers the second carriage 16 in the vertical direction may be provided so that the second carriage 16 can be moved between the stages.

  In the description of the embodiment, an example in which the first carriage 14 is provided in each row of each stage is shown, but the present invention is not limited to this. It is not essential that the first carriage 14 is provided in each row of each stage, and one may be provided in a plurality of stages, or only one in a plurality of lines.

  In the description of the embodiment, an example in which the storage shelf 20 includes a plurality of storage rows 24 is shown, but the present invention is not limited to this. The storage shelf 20 may be composed of one storage row 24.

  In the description of the embodiment, an example in which the number of the storage units 26 configuring the storage row 24 is uniform is shown, but the present invention is not limited to this. Depending on the unevenness of the wall of the building that houses the storage shelf 20, the number of storage units 26 that make up the storage row 24 may be provided with a large number of rows and a small number of rows.

  In the description of the embodiment, an example in which the number of storage rows 24 stacked in the vertical direction is uniform is shown, but the present invention is not limited to this. Depending on the height of the ceiling of the building that houses the storage shelves 20, the storage rows 24 may be provided with a region with a large number of steps and a region with a small number of steps.

  In the description of the embodiment, the first transverse beam 38a, the second transverse beam 38b, the third transverse beam 38c, and the fourth transverse beam 38d (hereinafter, only the second transverse beam 38b is described for simplicity) are configured by the same member. Although an example is shown, the present invention is not limited to this. For example, the first transverse beam 38a may be formed thinner (smaller in the height direction) than the second transverse beam 38b. In this case, as shown in FIG. 10, the first horizontal beam 38a is not provided on the outer side (left side) in the −X axis direction than the first rail 40, that is, in contact with the lower portion of the first rail 40 in the same manner as the second horizontal beam 38b. Even if it provides in this way, the distance from the 1st cross beam 38a to the mounting surface 30a can be made shorter than the distance from the 2nd cross beam 38b to the mounting surface 30a, and the effect similar to embodiment can be acquired. Can do.

  In the description of the embodiment, for the first storage shelf 20a, the distance d1 between the first lateral beam 38a closest to the outer entrance / exit part 24a and the placement surface 30a is the other second lateral beam 38b and the third lateral beam 38c. The distance d2 between each of the fourth horizontal beams 38d and the placement surface 30a is shorter than the distance d2. On the other hand, for the second storage shelf 20b, the description of the embodiment does not particularly mention the distance between the horizontal beam 38 and the mounting surface 30a, but the distance between the horizontal beam 38 and the mounting surface 30a. May be the same. That is, each of the horizontal beams 38 of the second storage shelf 20b may be provided at the same height as the second horizontal beam 38b, the third horizontal beam 38c, and the fourth horizontal beam 38d of the first storage shelf 20a. This is because, as shown in FIG. 1, no external transfer device is introduced into the second storage shelf 20b, so there is no need to increase the margin in the height direction of the doorway.

  In the description of the embodiment, an example in which the first transverse beam 38a supports the first rail 40 via the support bracket 48 has been described, but the present invention is not limited to this.

  FIG. 11 is a side view showing a modification of the first storage shelf 20a. FIG. 11 corresponds to FIG. In the example of FIG. 11, the first transverse beam 38a is fixed directly or indirectly to the end surface 40b of the first rail 40 on the side of the external entrance / exit 24a via an intermediate member (not shown). The first transverse beam 38a is disposed such that the lower surface 38aa is positioned above the lower surfaces 38ba, 38ca, 38da of the second transverse beam 38b, the third transverse beam 38c, and the fourth transverse beam 38d. In the illustrated example, the first horizontal beam 38 a is arranged such that the lower surface 38 aa is positioned above the lower surface 40 c of the first rail 40. Further, the upper surface 38ab of the first transverse beam 38a is positioned above the traveling surface 40a that is the upper surface of the first rail 40 and lower than the mounting surface 30a that is the upper surface of the mounting table 30.

  FIG. 12 is a side view showing another modification of the first storage shelf 20a. FIG. 12 corresponds to FIG. In the example of FIG. 12, the first cross beam 38a is inserted through the connecting member 50 and fixed there. The lower surface 38aa of the first transverse beam 38a is located above the lower surfaces 38ba, 38ca, 38da of the second transverse beam 38b, the third transverse beam 38c, and the fourth transverse beam 38d, and the upper surface 38ab of the first transverse beam 38a is located on the first rail 40. It is located above the traveling surface 40 a that is the upper surface and below the placement surface 30 a that is the upper surface of the placement table 30.

  According to the modified examples of FIGS. 11 and 12, the same effects as in the embodiment can be obtained.

  Any combination of the above-described embodiments and modifications is also useful as an embodiment of the present invention. The new embodiment generated by the combination has the effects of the combined embodiment and the modified examples.

  14 First bogie, 24a External entrance / exit section, 26 Storage section, 30a Placement surface, 40 First rail, 38 Cross beam, 38a First cross beam, 38b Second cross beam.

Claims (6)

A carriage for transporting the load;
A shelf provided in a plurality of stages in the height direction;
A rail provided on each of the plurality of shelves, and for moving the carriage in a first direction;
A plurality of support members arranged side by side along the first direction and supporting the rails,
The automatic warehouse system, wherein the support member closest to the end in the first direction is provided such that the position in the height direction is higher than the other support members.   The automatic warehouse system according to claim 1, wherein the support member functions as a restraining member that suppresses falling of the carriage from the end side.   3. The automatic warehouse system according to claim 1, wherein at least a part of the support member is located above a travel surface of the rail.   The distance in the first direction between the support member on the most end side and the support member adjacent to the support member on the most end side among the other support members is greater than the distance between the other support members. The automatic warehouse system according to any one of claims 1 to 3, wherein the automatic warehouse system is also wide. The load is transported on the pallet,
5. The distance from the end of the rail to the support member on the most end side among the other support members is longer than the length of the pallet in the first direction. The automatic warehouse system as described in any one of. A carriage for transporting the load;
A shelf provided in a plurality of stages in the height direction;
A rail for moving the carriage in a first direction provided on each of the shelves of a plurality of stages;
A plurality of support members that are provided on each of the plurality of shelves and support rails,
The distance in the height direction from the placement surface of one shelf to the support member closest to the end of the plurality of support members supporting the shelf adjacent to the upper side of the shelf is the placement surface described above To an other support member among the plurality of support members that support the adjacent shelf portions, the automatic warehouse system, characterized in that it is longer than the distance in the height direction.

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