JP6197753B2 - Goods transport equipment - Google Patents

Description

  The present invention is provided with a travel rail disposed along a travel route, an article transport cart that moves on the travel rail, and a travel device that travels the article transport cart along the travel route. The travel rail has a travel surface on which the travel wheels of the article transport carriage roll, and the travel device is disposed over the entire length of the travel path with both ends connected to the article transport carriage. The present invention relates to an article conveying facility including a loop-shaped and strip-shaped belt body and a driving body that moves the belt-shaped body along a longitudinal direction thereof.

  A conventional example of such an article conveyance facility is described in Japanese Unexamined Patent Application Publication No. 2009-029569 (Patent Document 1). In the article conveying facility of Patent Document 1, the belt-like body is arranged so as to form a loop in a plan view. In other words, pulleys that rotate around the longitudinal axis are arranged at both ends of the travel path, and the belts are wound around the pair of pulleys so that the belts form a loop in plan view. It is arranged. And it is comprised so that a pulley may be rotationally driven with the apparatus for driving | running | working, and a strip | belt-shaped body may be moved to the longitudinal direction, and an article conveyance trolley may be moved along a driving | running route.

JP 2009-029569 A

  In the conventional article transport facility, the belt-like body is disposed so as to form a loop in plan view. In the case where the belt-like body is arranged in this way, the width of the belt-like body forming the loop in plan view is often wider than the lateral width of the belt-like body. Therefore, compared to the case where the loop is formed so as to form a loop when viewed in the lateral direction of the path, a wider space is required in the lateral direction of the path in order to install the strip, and it is difficult to install the strip. In particular, a storage shelf for storing articles may be provided on the lateral side of the travel route. In such a case, it is necessary to install the belt-like body avoiding the storage shelf. It is difficult to install.

Therefore, the belt-like body is arranged so as to form a loop when viewed in the lateral direction of the path, so that the belt-like body can be installed in a relatively narrow space in the lateral direction of the path, and the traveling device is configured compactly in the lateral direction of the path It is possible to do.
However, in the case where the belt-like body is arranged so as to form a loop when viewed in the lateral direction of the path in this way, the upper portion of the belt-like body is in a posture along the horizontal direction, so that the belt-like body is likely to hang down. Therefore, it is necessary to separately provide a member that supports the hanging strip-like body, and the configuration of the article transport facility is complicated.
Thus, there is a demand for an article transport facility having a simple configuration while the traveling device is compactly configured in the path width direction.

The characteristic configuration of the article transport facility according to the present invention includes: a travel rail disposed along a travel path; an article transport carriage that moves on the travel rail; and the article transport carriage that travels along the travel path. A traveling device, wherein the traveling rail includes a traveling surface on which traveling wheels of the article transport cart roll, and the travel device is connected to the article transport cart at both ends. In an article conveyance facility comprising a loop-like and belt-like belt-like body disposed over the entire length of the path, and a driving body that moves the belt-like body along its longitudinal direction,
The upper portion of the belt-like body in a state in which the belt-like body has an upper portion located above the running surface of the running rail and a lower portion located below the running surface of the running rail. Is disposed in a state of being directly above the traveling surface, and the traveling rail is a center in the lateral direction of the path perpendicular to the longitudinal direction of the path that is the longitudinal direction of the traveling path in the upper part of the traveling rail. Both ends of the path width direction at the upper portion of the traveling rail with respect to the portion are formed to protrude upward, the traveling surface is formed on the upper surface of the central portion of the traveling rail, and the belt-shaped body The upper portion is supported, and the distance between the both end portions of the traveling rail is at a point wider than the width of the belt-like body in the path width direction .

According to this characteristic configuration, the band-shaped body is disposed in a state in which the upper portion and the lower portion exist, so that the band-shaped body is disposed in a state in which a loop is formed in the path width direction view. Therefore, it is possible to install the band-like body in a relatively narrow space in the path lateral width direction compared to the case where the band-like body is arranged in a state of forming a loop in plan view, and the travel device is configured compactly in the path lateral width direction. be able to.
And the upper part of a strip | belt shaped object is arrange | positioned so that it may be located just above a running surface. Therefore, it is possible to receive and support the upper part of the belt-like body that hangs down on the running surface of the traveling rail, and the upper part of the belt-like body hangs down so that the belt-like body comes into contact with surrounding members such as a power supply line. Can be prevented. In addition, by receiving and supporting the belt-like body on the running surface of the running rail, it is not necessary to separately provide a member for receiving and supporting the belt-like body.
In this way, the belt-like body is disposed so as to form a loop when viewed in the lateral direction of the path, and the traveling device can be configured compactly in the lateral direction of the path. By receiving and supporting the portion, it is not necessary to separately provide a member for receiving and supporting the belt-like body, and the configuration of the article transport facility can be simplified.

Further, according to this characteristic configuration, the traveling surface is formed on the upper surface of the central portion in the path width direction of the traveling rail, and both end portions of the traveling rail in the path width direction are formed to protrude upward. Therefore, the upper part of the belt-like body received and supported by the running surface of the running rail is restricted or suppressed from moving in the path lateral width direction at both end portions of the running rail. In contrast, it is possible to prevent a part or all of the upper portion from shifting in the lateral direction of the path and moving downward from the traveling surface.

  Further, it is preferable that the belt-like body is disposed in a state where a lower portion thereof is positioned below the traveling rail, and a support body that supports the lower portion of the belt-like body is provided.

According to this configuration, since the belt-like body is disposed in a state where the lower portion thereof is positioned below the travel rail, for example, a hollow shape in which a space through which the lower portion of the belt-like body passes is formed in the travel rail. Therefore, it is not necessary to form a traveling rail, and the traveling rail shape can be simplified.
Moreover, since the support body which supports the lower part of a strip | belt-shaped body is provided, it can prevent beforehand that the lower part of the strip | belt-shaped body which hangs down contacts a surrounding member.

  In addition, a storage shelf for storing articles is provided on a lateral side of the travel path, the article transport carriage includes a transfer device for transferring articles to and from the storage shelf, and the travel rail includes: It is preferable that it is supported by the storage shelf.

According to this configuration, the article transport carriage can transfer articles to and from the storage shelf by the operation of the transfer device. In addition, the traveling rail is supported by the storage shelf, and the storage shelf exists near the traveling rail, but the belt-like body forms a loop when viewed in the lateral direction of the path, and the upper portion of the belt-like body is connected to the traveling surface of the traveling rail. Since it is located immediately above, it is easy to dispose the belt-like body without interfering with the storage shelf.
In addition, since it is easy to form a space below the traveling rail by supporting the traveling rail with the storage shelf, for example, when the strip is disposed in a state where the lower part of the strip is located below the traveling rail It is easy to dispose the belt-like body.

  Further, the article transporting carriage includes a carriage main body provided with the traveling wheel, a mast erected on the carriage main body, and a lifting transfer device that moves up and down along the mast, and the lifting transfer The apparatus includes an elevating body that moves up and down along the mast and the transfer device mounted on the elevating body, and the elevating and transferring apparatus is in a longitudinal direction of the travel path. In the path width direction orthogonal to the plane view, it exists from a position directly above the traveling rail to a position on the first direction which is one side of the path width direction with respect to the traveling rail, and the lift transfer device It is preferable that the first portion located on the first direction side with respect to the traveling rail is formed in a shape projecting downward with respect to the second portion located immediately above the traveling rail in the lifting / lowering transfer device. It is.

According to this structure, the 1st part of the raising / lowering transfer apparatus is formed in the shape which protrudes below with respect to the 2nd part of an raising / lowering transfer apparatus. That is, the lifting / lowering transfer device is formed in a shape in which the lower end height of the second part is located above the lower end height of the first part.
By forming the lifting / lowering transfer device in such a shape, for example, the lifting / lowering transferring device until the first portion of the lifting / lowering transfer device overlaps the traveling rail in the path width direction view along the path width direction. The lifting / lowering movement range of the lifting / lowering transfer device can be widened.

  In addition, a plurality of the traveling rails are supported on the storage shelf in a state of being arranged in the vertical direction, and a plurality of the article transport carts are provided in the vertical direction in a form supported by each of the plurality of traveling rails. Is preferred.

  According to this configuration, since a plurality of article transport carts are provided in the vertical direction, a plurality of articles can be shared and transported by the plurality of article transport carts, so that the transport efficiency of the articles can be improved. . Moreover, the floor area required for installing the article transport facility can be reduced by installing a plurality of article transport carts arranged in the vertical direction.

  In addition, a power supply line for supplying power to the article transport carriage is disposed along a longitudinal direction of the travel path, and the belt-like body has the upper portion located above the power supply line. In addition, it is preferable that the lower portion is disposed in a state of being positioned below the feeder line.

  According to this configuration, it is possible to supply power to the article transport cart that travels and moves along the travel route by the power supply line. Then, by arranging the feeder line in a state where the upper part is located above the feeder line and the lower part is located below the feeder line, the internal space of the belt-like body arranged in a loop shape is used. Thus, the feeder line can be arranged, and the article conveying facility can be configured compactly.

Main floor plan of automated warehouse Front view of main parts of automated warehouse Side view of stacker crane Front view of an automated warehouse showing multiple stacker cranes lined up and down Side view of the engagement transfer transport device Operation explanatory diagram of the engagement transfer device when transferring the container to and from the front storage unit Operation explanatory diagram of the engagement transfer device when transferring the container to and from the storage unit on the back side Operation explanatory diagram of the engagement transfer device when transferring the container Front view of the lower part of the stacker crane Bottom view of stacker crane Front view showing traveling rail and traveling strip

Hereinafter, an embodiment of the present invention will be described with reference to the drawings by using an example in which the article conveying facility according to the present invention is applied to an automatic warehouse.
As shown in FIG.1 and FIG.2, in an automatic warehouse, the storage shelf 2 provided with the storage part 1 which accommodates the container C as an article | item, the carrying-in apparatus 3 which carries the container C in an automatic warehouse, and an automatic warehouse An unloading device 4 for unloading the container C, and a stacker crane 5 as an article conveying cart that travels along the longitudinal direction Y of the traveling path E formed in front of the storage shelf 2 and transports the container C. Is provided.

  The storage shelves 2 are provided on both lateral sides of the travel route E, and the pair of storage shelves 2 are installed facing each other. As shown in FIGS. 1, 2, and 4, a plurality of sets of storage shelves 2 are juxtaposed in the path width direction X with a pair of storage shelves 2 as a set. FIG. 1 shows a pair of storage shelves 2 that form a pair, and FIG. 2 shows a pair of storage shelves 2 that form a pair and one storage shelf 2 that forms another pair. In FIG. 4, two pairs of storage shelves 2 are shown. As shown in FIGS. 1 and 2, each of the pair of storage shelves 2 is provided with a plurality of storage portions 1 arranged in the vertical direction and the longitudinal direction Y of the path.

〔container〕
As shown in FIG. 1, the container C is formed in a rectangular shape in plan view. Then, the container C is conveyed by the stacker crane 5 and stored in the storage unit 1 in a posture in which the longitudinal direction of the container C is along the path width direction X and the short side direction of the container C is along the path longitudinal direction Y. And as shown in FIG. 5, the 1st to-be-engaged part 8 and the 2nd to-be-engaged part 9 are formed in the edge part of the longitudinal direction (path | route width direction X) of the container C. As shown in FIG.
The first engaged portion 8 is formed such that a first engaging portion 32 described later can be engaged from below and the first engaging portion 32 can be detached downward. The second engaged portion 9 is formed such that a second engaging portion 33 described later can be engaged from below and the second engaging portion 33 can be detached downward.

〔Storage rack〕
As shown in FIGS. 1 and 2, the storage shelf 2 includes a plurality of column frames 11 arranged in the path longitudinal direction Y, and a shelf plate 12 that is positioned between the column frames 11 and arranged in parallel in the vertical direction. , And is configured. Incidentally, the shelf board 12 is connected and supported by a pair of column frames 11 located on both sides in the path longitudinal direction Y.
A storage section 1 for storing the container C is formed on the shelf board 12, and a plurality of storage sections 1 are arranged in parallel in the path longitudinal direction Y on the single shelf board 12 and in the path lateral width direction X. Two are arranged side by side. A pair of storage shelves 2 adjacent to each other in a back-to-back state (a pair of storage shelves 2 illustrated on the right side in FIG. 2) also serves as a part of the support frame 11.

[Goods transportation equipment]
As shown in FIGS. 2 and 3, in the article transport facility, the traveling rail 14 disposed on the traveling route E along the route longitudinal direction Y, and the traveling route E along the route longitudinal direction Y are disposed. The guide rail 15 and the stacker crane 5 that travels on the travel rail 14 and is guided along the longitudinal direction Y by the travel rail 14 and the guide rail 15 are provided. The stacker crane 5 travels along a traveling path E formed between the pair of storage shelves 2 along the longitudinal direction Y of the stacker crane, conveys the container C from the loading device 3 to the storage unit 1, and stores the storage unit 1. It is comprised so that the container C may be conveyed to the carrying-out apparatus 4 from.
As will be described later, the stacker crane 5 is provided with a carriage main body 18 that moves on the traveling rail 14 and a traveling device 22 that moves the carriage main body 18 along the traveling route E, and transports articles. The facility is provided with a traveling rail 14, a carriage body 18, and a traveling device 22.

  As shown in FIG. 4, a plurality of traveling rails 14 and a plurality of guide rails 15 (three each in this embodiment) are supported by the storage shelf 2 in a state of being arranged in the vertical direction, and the stacker crane 5 is disposed in the plurality of traveling directions. A plurality (three in this embodiment) are provided in the vertical direction in a form supported by each of the rails 14. That is, the article transport facility is provided with a plurality of traveling rails 14, guide rails 15, and stacker cranes 5.

  The traveling rail 14 and the guide rail 15 are connected and supported by the storage shelf 2. In other words, one side of the path width direction X (left side in FIGS. 1 and 2) is the first direction side, and the other side of the path width direction X (right side in FIGS. 1 and 2) is the second direction side. The travel rail 14 and the guide rail 15 are connected and supported by the support frame 11 of the storage shelf 2 located on the second direction side in the path width direction X of the pair of storage shelves 2 forming the set. In this way, the traveling rail 14 and the guide rail 15 supported by the support frame 11 are disposed in the traveling path E closer to the second direction side than the center in the path lateral width direction X.

[Stacker crane]
As shown in FIG. 3, the stacker crane 5 is provided with traveling wheels 17 and moves on the traveling rail 14, a mast 19 erected on the carriage body 18, and moves up and down along the mast 19. An elevating body 20 and an engagement mounting / conveying device 21 provided in the elevating body 20 are provided. The engagement mounting / conveying device 21 corresponds to a transfer device, and the engagement mounting / conveying device 21 and the lifting / lowering body 20 constitute a lifting / lowering transfer device 24.

A distance measuring sensor S1 for detecting the traveling position of the carriage main body 18 is provided at the end of the traveling path E in the longitudinal direction Y of the carriage. The carriage main body 18 detects the elevation position of the elevator 20. A lifting distance measuring sensor S2 is provided.
A control device (not shown) for controlling the operation of the stacker crane 5 drives the traveling device 22 based on the detection information of the traveling distance measuring sensor S1, and travels the carriage main body 18 to the traveling target position. Then, the operation of the traveling device 22 and the lifting device 23 is controlled so that the lifting device 23 is driven based on the detection information of the lifting distance measuring sensor S2 and the lifting body 20 is moved up and down to the lifting target position. Is configured to do.

[Engagement transfer device]
As shown in FIG. 5, the engagement placing and conveying device 21 is provided with a conveying conveyor 25, an engagement and transfer device 26, an elevating and moving device 27, a slide moving device 28, a guide rail 29, and a position detection sensor 30. ing.
The transport conveyor 25 is configured by a belt conveyor that places and transports the containers C along the path width direction X by driving the conveyor motor 31.
The elevating / lowering device 27 is composed of an electric cylinder that supports the engagement transfer device 26, and moves up and down in the vertical direction, thereby moving the engagement transfer device 26 up and down as shown in FIGS. 6 to 8. It is configured to let you. Further, the elevating / lowering device 27 is supported by the slide rail 34 so as to be movable in the path width direction X.
The slide moving device 28 slides the engagement transfer device 26 along the path width direction X as shown in FIGS. 6 and 8 by moving the elevating / lowering device 27 along the slide rail 34. It is configured.
As shown in FIGS. 6 and 7, the engagement transfer device 26 moves the first engagement portion 32 and the second engagement portion 33 integrally in the path lateral width direction X as shown in FIGS. 6 and 7. It is configured to move.
The guide rail 29 is provided so as to contact and guide the container C transported by the transport conveyor 25 and the container C transferred by the engagement transfer device 26 along the lateral direction X of the path.
A plurality of position detection sensors 30 are provided so as to detect the position of the container C located at a preset setting position on the conveyor 25.

And the engagement mounting conveyance apparatus 21 moves the engagement transfer apparatus 26 in and out, moves the engagement transfer apparatus 26 in the direction along the lateral direction X of the path by the slide movement apparatus 28, and moves up and down. As shown in FIGS. 6 and 7, as the engagement transfer device 26 moves up and down by 27, the storage unit 1 located on the first direction side (left side in FIG. 6) in the path lateral width direction X and on the conveyor 25 The container C is configured to be transferred to and from the first position P1. In addition, although illustration is abbreviate | omitted, the accommodating part located in the 2nd direction side of the path | route width direction X by making the exit / retreat direction of the engagement transfer apparatus 26 and the slide movement direction of the engagement transfer apparatus 26 reverse. 1 and the second position P2 on the conveyor 25 are configured to transfer the container C. The second position P2 is located on the second direction side in the path width direction X from the first position P1.
In addition, as shown in FIG. 8, the engagement placement transport device 21 places and transports the containers C on the transport conveyor 25 in a state where the engagement transfer device 26 is retracted downward, so that the first position The container C is configured to move between P1 and the second position P2.

As shown in FIG. 2, the lifting / lowering device 24 composed of the lifting body 20 and the engagement mounting / conveying device 21 is a first direction in the path width direction X from the top of the traveling rail 14 to the traveling rail 14. It is provided in a state where it exists up to the side position. In the lifting / lowering transfer device 24, the lower end portion at the end on the second direction side in the path width direction X is notched, and the first direction side in the path width direction X with respect to the traveling rail 14 in the lifting / lowering transfer device 24. The first portion 24a located at the position is formed in a shape protruding downward with respect to the second portion 24b located immediately above the traveling rail 14 in the lifting / lowering transfer device 24.
When the lifting / lowering transfer device 24 is moved down to the lower end of the lifting / lowering movement range of the lifting / lowering transfer device 24, the lower end of the first portion 24 a in the lifting / lowering transfer device 24 is positioned below the upper end of the traveling rail 14. The lower end of the second portion 24b of the lifting / lowering transfer device 24 is located above the upper end of the traveling rail 14, and the first portion 24a of the lifting / lowering transfer device 24 is viewed in the path width direction along the path width direction X. It will be in the state which overlaps with the traveling rail 14.

  By the way, even with the single engagement mounting and conveying device 21, the portion located on the first direction side in the path width direction X with respect to the traveling rail 14 is formed in a shape protruding downward with respect to the portion located immediately above the traveling rail 14. Has been. In the portion of the engagement mounting / conveying device 21 that protrudes downward, an elevating / lowering device 27, a slide moving device 28, a conveyor motor 31, a slide rail 34, and an exit / retreat motor 35 are disposed. In the state where the lifting / lowering transfer device 24 is moved down to the lower end of the lifting / lowering movement range of the lifting / lowering transfer device 24, the lower end of the portion projecting downward in the engagement mounting / conveying device 21 is higher than the upper end of the traveling rail 14. Located below.

[Car body]
As shown in FIGS. 3 and 9, the cart body 18 includes a wheel support portion 37 positioned at each of both ends of the cart body 18 in the path longitudinal direction Y, and a connecting portion that connects the pair of wheel support portions 37 to each other. 38. The traveling wheel 17 and the guide wheel 39 are rotatably supported by the wheel support portion 37.

  As shown in FIG. 9, the connecting portion 38 is connected to the wheel support portion 37 so as to be positioned on the first direction side in the path lateral width direction X with respect to the wheel support portion 37. It is located on the first direction side in the path lateral width direction X with respect to the rail 14. As shown in FIG. 3, the mast 19 is connected and supported at the center of the connecting portion 38 in the longitudinal direction Y of the path, and as shown in FIG. It is located in the first direction side in the direction X and is provided in a state of overlapping the traveling rail 14 when viewed in the lateral direction of the path.

  The operation of the carriage main body 18 is controlled by a control device so as to travel and move along a route travel direction Y in a travel travel range set in advance. Is provided with a damper D that contacts the carriage main body 18 that has traveled and moved beyond the travel movement range.

[Elevator]
As shown in FIG. 2 and FIG. 3, the lifting device 23 has a loop-shaped and strip-shaped lifting belt shape in which both end portions are connected to the lifting body 20 and arranged over the entire length of the lifting path of the lifting body 20. The body 40 and the raising / lowering drive motor 41 which moves the raising / lowering strip | belt-shaped body 40 along the longitudinal direction are provided. The elevating belt-like body 40 is wound around a first elevating pulley 42 supported by the carriage body 18 and a second elevating pulley 43 supported by the upper end portion of the mast 19. The elevating device 23 moves the elevating body 20 up and down by rotating the first elevating pulley 42 with the elevating drive motor 41 and moving the elevating belt 40 along the longitudinal direction thereof. It is configured.

[Equipment for traveling]
As shown in FIG. 1 and FIG. 3, the traveling device 22 has a loop-like and strip-like belt-like body in which both ends are connected to the carriage main body 18 and disposed over the entire length of the traveling route E. A belt-like body 45 and a travel drive motor 46 as a drive body for moving the travel belt-like body 45 along the longitudinal direction thereof are provided. The travel strip 45 is wound around a first travel pulley 47 and a second travel pulley 48 disposed at both ends of the travel route E. The traveling device 22 causes the carriage main body 18 to travel by causing the traveling drive motor 46 to rotationally drive the first traveling pulley 47 and moving the traveling strip 45 along the longitudinal direction thereof. It is configured.
In this manner, the traveling device 22 travels and moves the cart body 18 by rotating one of the plurality of traveling pulleys around which the traveling strip 45 is wound by the traveling drive motor 46. It is configured.

Next, the traveling rail 14 and the traveling strip 45 will be described.
As shown in FIGS. 9 and 10, the traveling rail 14 includes a traveling surface F on which the traveling wheels 17 of the carriage main body 18 roll. In other words, a portion located at the center of the route width direction X in the upper part of the traveling rail 14 is defined as a central portion 14a, and a portion located at both ends of the route width direction X in the upper portion of the traveling rail 14 is defined as both end portions 14b. The rail 14 is formed in a shape in which both end portions 14b protrude upward with respect to the central portion 14a. Thus, the central portion 14a that is recessed downward is formed between both end portions 14b of the traveling rail 14, and the traveling surface F is formed on the upper surface of the central portion 14a. Incidentally, a portion of the upper surface of the traveling rail 14 where the traveling wheel 17 is assumed to roll is defined as a traveling surface F.

The traveling rail 14 is formed in a C-shape that opens on the first direction side in the lateral direction X of the path when viewed in the longitudinal direction of the path. In the interior space of the traveling rail 14, a power supply line 51 that supplies electric power to the carriage main body 18 is arranged in a state along the path longitudinal direction Y.
Further, an end portion on the first direction side in the lateral direction X of the path in the lower part of the traveling rail 14 protrudes downward to form a guide part 14 c that guides the guide wheel 39 along the longitudinal direction Y of the path.

The first traveling pulley 47 and the second traveling pulley 48 are provided at the end of the traveling route E in a state of rotating around the axis along the lateral direction X of the route. The travel strip 45 wound around the first travel pulley 47 and the second travel pulley 48 is provided in a state of forming a loop when viewed in the lateral direction of the path.
Further, the first traveling pulley 47 and the second traveling pulley 48 are arranged such that the upper end is located above the traveling surface F of the traveling rail 14 and the lower end is located below the traveling surface F. The traveling belt-like body 45 is provided so as to surround the traveling rail 14 when viewed in the lateral direction of the path. The traveling strip 45 provided in this way is in a state of surrounding the traveling surface F of the traveling rail 14 when viewed in the lateral direction of the path, and from the upper portion 45a positioned above the traveling surface F and the traveling surface F. The lower portion 45b located below is disposed.

  The travel rail 14 supports and supports a support body 52 that supports the lower portion 45 b of the travel strip 45. The support body 52 is connected to the side surface of the traveling rail 14 on the second direction side in the path width direction X, and a portion protruding downward from the lower end of the traveling rail 14 is bent toward the first direction side in the path width direction X. Is formed. The support body 52 is bent and bent in the first direction side so as to place and support the lower portion 45b of the traveling belt-like body 45 located below the traveling rail 14 at a portion located directly below the traveling rail 14. Configured.

  The first traveling pulley 47 and the second traveling pulley 48 are provided so as to be aligned with the traveling surface F in the path longitudinal direction Y. The traveling belt 45 wound around the first traveling pulley 47 and the second traveling pulley 48 has an upper portion 45a positioned immediately above the traveling surface F of the traveling rail 14 and a lower portion 45b disposed on the traveling rail 14. It is arrange | positioned in the state located immediately below.

Then, as shown in FIG. 10, when the carriage body 18 is moved to the first direction side (the right side in FIG. 10) that is one side of the path longitudinal direction Y, the first rotating body is rotated by the travel drive motor 46. By driving, the upper part 45a of the travel strip 45 located on the first direction side in the path longitudinal direction Y from the carriage body 18 is moved to the first direction side in the path longitudinal direction Y, so that the cart body 18 is It moves to the first direction side of the path longitudinal direction Y.
At this time, as shown in FIG. 10, the upper portion 45a located on the second direction side, which is the other side of the path longitudinal direction Y, hangs down, but as shown in FIGS. The upper portion 45a can be received and supported by the traveling surface F of the traveling rail 14 located immediately below. Further, the lower portion 45b also hangs down, and the lower portion 45b that hangs down can be received and supported by the support body 52.

[Another embodiment]
( 1 ) In the above embodiment, the support body 52 that receives and supports the lower portion 45b of the belt-like body is provided. However, the travel rail 14 is formed in a hollow shape without providing the support body 52, and the lower portion 45b of the belt-like body. May be disposed in the inner space of the traveling rail 14 so that the traveling rail 14 receives and supports the lower portion 45b of the belt-like body.

( 2 ) In the above embodiment, the traveling rail 14 is supported on the storage shelf 2, but the traveling rail 14 may be supported on the floor surface.

( 3 ) In the above-described embodiment, a plurality of article transport carts are arranged on the travel route E in a state where they are arranged in the vertical direction, but only one article transport cart may be disposed on the travel route E. In addition, a plurality of article transport carts may be arranged on the travel route E in a state where they are aligned in the route longitudinal direction Y or in a state where they can be moved by passing each other.

( 4 ) In the above-described embodiment, the power supply line 51 is provided along the travel route E, and power is supplied to the article transport carriage through the power supply line. However, the power supply cable is connected to the article transport carriage and the power supply cable is connected. The article conveying cart may be supplied with power.
Even when the power supply line 51 is provided, the position where the power supply line 51 is provided such that the power supply line 51 is provided above the upper part 45a of the strip or the power supply line 51 is provided below the lower part 45b of the strip. It can be changed as appropriate.

( 5 ) In the above embodiment, the article transporting carriage is the stacker crane 5, but the article transporting carriage is configured along the traveling rail 14 such that the article transporting carriage is configured by a traveling carriage that travels on the rail outside the automatic warehouse. Any cart that travels and moves can be used.

2 Storage shelves 5 Stacker crane (goods transport cart)
DESCRIPTION OF SYMBOLS 14 Traveling rail 14a Center part 14b Both end part 17 Traveling wheel 18 Bogie main body 19 Mast 22 Traveling device 24 Elevating transfer device 45 Traveling strip | belt-shaped body (band-shaped body)
45a Upper part 45b Lower part 46 Driving motor for driving (driving body)
51 Power supply line 52 Support body C Container (article)
E Travel route F Travel surface

Claims (6)

A travel rail disposed along the travel path, an article transport carriage that moves on the travel rail, and a travel device that travels the article transport truck along the travel path, and
The traveling rail includes a traveling surface on which traveling wheels of the article transport cart roll,
The traveling device has a loop-like and belt-like belt-like body having both ends connected to the article transport carriage and arranged over the entire length of the travel route, and moves the belt-like body along its longitudinal direction. An article transport facility comprising:
The upper portion of the belt-like body in a state in which the belt-like body has an upper portion located above the running surface of the running rail and a lower portion located below the running surface of the running rail. Is disposed in a state located directly above the running surface ,
The travel rail in the path width direction in the upper part of the travel rail with respect to a central portion in the path width direction perpendicular to the longitudinal direction of the path that is the longitudinal direction of the travel path in the upper part of the travel rail. Both ends are formed in a shape that protrudes upward,
The running surface is formed on the upper surface of the central portion of the running rail and supports the upper portion of the belt-like body,
The article conveying facility in which the distance between the both end portions of the traveling rail is wider than the width of the belt-like body in the path width direction . The belt-like body is disposed in a state where a lower portion thereof is located below the travel rail;
The article transport facility according to claim 1, wherein the support for supporting the lower portion is provided in the strip. A storage shelf for storing articles is provided on the lateral side of the travel route,
The article transport carriage is provided with a transfer device for transferring articles to and from the storage shelf,
The traveling rail, an article transport facility according to claim 1 or 2, wherein is supported by the storage rack. The article transport cart includes a cart body provided with the traveling wheels, a mast erected on the cart body, and a lift transfer device that moves up and down along the mast. An elevating body that moves up and down along the mast, and the transfer device equipped in the elevating body,
The lifting / lowering transfer device is in a path lateral width direction orthogonal to the longitudinal direction of the travel path, which is a longitudinal direction of the travel path, in a plan view and from one side of the travel lateral width direction to the travel rail from directly above the travel rail. And the first part located on the first direction side with respect to the traveling rail in the lifting / lowering transfer device is directly above the traveling rail in the lifting / lowering transfer device. The article conveying facility according to claim 3 , wherein the article conveying facility is formed in a shape projecting downward with respect to the second portion located at the position. A plurality of the traveling rails are supported in a state of being arranged in the vertical direction on the storage shelf,
The article conveyance facility according to claim 3 or 4 , wherein a plurality of the article conveyance carriages are provided in a vertical direction in a form supported by each of the plurality of travel rails. A power supply line for supplying power to the article transport carriage is disposed along a longitudinal direction of the travel path, which is a longitudinal direction of the travel path,
The strip is, the upper portion according to any one of claims 1 to 5, wherein the feed line than located above and the lower part is arranged in a state located below the feed line Goods conveying equipment.

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