JP6438640B2 - Warehouse - Google Patents

Description

  The present invention relates to a warehouse.

  Patent Document 1 describes an automatic warehouse system including a transport vehicle that travels along a route and transports a load, a load shelf, and a stacker crane. This automatic warehouse system includes a branch path that branches off from the path, a car station that is disposed at an end of the branch path and that holds the transport vehicle with a stacker crane, and a car shelf that stores the transport vehicle in the vertical direction. . Patent Documents 2-5 describe a transport device including a transport chain and a transport rail.

JP-A-2006-11202 Japanese Patent Laid-Open No. 11-320664 JP 2002-160288 A JP 2005-46872 A JP-T-2015-511908

  The automatic warehouse system and the transfer device described above have a complicated structure and tend to be expensive.

  The present invention has been made in view of the above problems of the background art, and provides a low-cost warehouse with a simple structure.

  The warehouse of the present invention that solves the above problems is a warehouse for storing stored items, and a plurality of links are connected to each other at an end by an endless track by a joint, and are formed in a disk shape, with a joint on the periphery. A first sprocket gear in which engaging portions that can be engaged are provided at intervals of the length of one link, and the first sprocket gear are formed in the same shape, and are arranged at a predetermined interval from the first sprocket gear. Two sprocket gears, a rotary drive unit that rotationally drives one of the first sprocket gear and the second sprocket gear in a state where the conveyor belt is bridged, and a box shape that can store stored items, linked to the outer surface A cabinet in which the joints at both ends of the belt are fixed, and the first sprocket gear and the second sprocket gear in a state where the conveyor belt is stretched are rotatably supported. The first support and the second support that includes driving fixing unit for fixing and supporting the rotary drive unit, and a pedestal conveying surface for sliding the cabinet in accordance with the rotation of the conveyor belt is provided, the.

  According to this, since it is a belt and gear transport mechanism, the structure is simple and can be constructed at low cost, and the joints at both ends of the link are fixed to the outer surface of the cabinet, so the cabinet can be transported smoothly. it can.

It is a top view which shows the whole structure of the warehouse of embodiment. It is an AA view side view showing the whole warehouse structure of an embodiment. It is a perspective view which shows the detail of the chain belt of a warehouse. It is a perspective view which shows the connection part of the carrier of a warehouse. It is a perspective view which shows the pressing device of a warehouse. It is a 1st top view which shows operation | movement of a warehouse. It is a 2nd top view which shows operation | movement of a warehouse.

(1. Whole warehouse structure)
An overall configuration of a warehouse according to an embodiment of the present invention will be described. As shown in FIGS. 1 and 2, the warehouse 1 is a warehouse 1 that stores stored items. The warehouse 1 includes a conveyance device 10, a plurality of cabinets 30 that are conveyed by the conveyance device 10, and a conveyance belt 11 of the conveyance device 10. A pressing device 50 for pressing, and a pedestal 70 on which the conveying device 10, the plurality of cabinets 30, and the pressing device 50 are installed.

  The transport device 10 includes a transport belt 11, a first sprocket gear 12, a second sprocket gear 13, and a rotation drive unit 14.

  The conveyor belt 11 is a chain belt, and a plurality of links 15 are connected by an endless track by a joint 16 at the end. As shown in FIG. 3, the link 15 includes a first link piece 15a, a second link piece 15b, and two collars 15c. The first link piece 15a and the second link piece 15b are formed in an oval plate shape having the same shape, and holes 15d into which the joints 16 are inserted are formed on both end sides. The collar 15c is formed in a cylindrical shape, and the joint 16 is inserted into the central hole 15e.

  Here, a procedure for connecting the link 15 at the center of FIG. 3 and the link 15 adjacent to the left side will be described. It overlaps so that the right hole 15d of the first link piece 15a adjacent to the left side is aligned below the left hole 15d of the central first link piece 15a, and further overlapped so that the hole 15e of the collar 15c is aligned. Match.

  Further, the holes 15e of the collar 15c are overlapped with each other so that the right hole 15d of the second link piece 15b adjacent to the left side coincides, and the left hole 15d of the center second link piece 15b coincides. To overlay. Then, the joint 16 is inserted through the overlapped holes 15d, 15d, 15e, 15d, and 15d, and both ends of the joint 16 are prevented from coming off by the C-ring 15e. By repeating the above procedure, the conveyor belt 11 having a predetermined length is completed.

  As shown in FIGS. 1 and 2, the first sprocket gear 12 is formed in a disk shape, and engaging portions 17 that can engage with the joints 16 are provided at the periphery of the first sprocket gear 12 at intervals of the length of one link 15. In this example, a total of eight engaging portions 17 are provided at 45 degree intervals. The first sprocket gear 12 is fitted into the rotary shaft 12a and is supported on the pedestal 70 so that the rotary shaft 12a faces upward.

  The second sprocket gear 13 is formed in the same shape as the first sprocket gear 12 and is arranged at a predetermined distance from the first sprocket gear 12. That is, the second sprocket gear 13 is fitted into the rotary shaft 13a and is rotatably supported on the pedestal 70 so that the rotary shaft 13a faces upward. A conveyor belt 11 is bridged between the first sprocket gear 12 and the second sprocket gear 13. At this time, the joint 16 of the conveyor belt 11 is fitted into the engaging portion 17 of the first sprocket gear 12 and the second sprocket gear 13.

  The rotation drive unit 14 includes a motor 18, pulleys 19 a and 19 b, and a drive belt 20. The motor 18 is disposed between the first sprocket gear 12 and the second sprocket gear 13 so that the motor shaft faces upward. The pulley 19 a is fitted into the motor shaft of the motor 18. The pulley 19 b is fitted into the rotation shaft 12 a of the first sprocket gear 12. The drive belt 20 is bridged between the pulleys 19a and 19b. The rotation drive unit 14 rotates one of the first sprocket gear 12 and the second sprocket gear 13 (in this example, the first sprocket gear 12) in a state where the conveyor belt 11 is stretched.

  The cabinet 30 is formed in a box shape in which one side surface is opened and a stored item can be stored from the open surface 31. As shown in FIG. 4, in the cabinet 30, the joints 16 at both ends of the link 15 are fixed to a side surface 32 that faces the open surface 31. That is, one end side of a bracket 34 that is bent into a L shape in a side view on a flat plate is fixed to the upper surface 33 of the cabinet 30 with a bolt 34a.

  And the other end side of this bracket 34 is formed in the substantially same shape as the 1st link piece 15a, and is fixed with the volt | bolt 34b in the joint 16 part. When the cabinet 30 is connected to the link 15 at a single point, the cabinet 30 may be staggered during transportation. However, since the cabinet 30 is connected to the link 15 with a line by the bracket 34, the cabinet 30 can be smoothly transported without wobbling.

  As shown in FIGS. 1 and 2, a total of ten cabinets 30 are arranged on the outer periphery of the conveyor belt 11 with the open surface 31 facing outward, and follow the rotation of the conveyor belt 11 around the conveyor belt 11. Be transported. A lid can be provided on the open surface 31 of the cabinet 30. By providing a lid on the open surface 31 of the cabinet 30, the stored item can be reliably stored in the cabinet 30. Furthermore, the lid can be provided with a locking mechanism. By providing a lid with a lock mechanism on the open surface 31 of the cabinet 30, the stored item can be more securely stored in the cabinet 30.

  Two casters (sliding members) 36 are attached to the bottom surface 35 of the cabinet 30 at a predetermined interval in the transport direction on the open surface 31 side, and one caster 36 is attached on the side surface 32 side. That is, the three casters 36 are arranged in a triangular shape. Thereby, the cabinet 30 can move smoothly on the conveyance surface 74 of the base 70 mentioned later.

As the caster (sliding member) 36, a caster such as a universal caster can be adopted in addition to a standard caster.
Further, the sliding member provided on the bottom surface 35 of the cabinet 30 is not limited to the caster 36. In addition to the caster 36, a normal means for reducing the friction coefficient, such as attaching a slippery material such as a POM (polyacetal) resin to the bottom surface 35 of the cabinet 30, can be employed.

  The pressing device 50 is a device that contacts the inner circumference of the conveyor belt 11 and presses the conveyor belt 11 from the inside to the outside to remove the slack of the conveyor belt 11. As shown in FIG. 5, the pressing device 50 includes a main body 51, a pressing member 52, and a pressing spring 53. FIG. 5 shows only one side of the pressing device 50, but the other side of the pressing device 50 has the same configuration. The main body 51 is formed in a flat plate shape, and is arranged so that the end portion faces the inner periphery of the conveyor belt 11. The pressing member 52 is disposed so as to protrude from the upper surface of the end of the main body 51 and move in a direction perpendicular to the rotation direction of the transport belt 11.

  That is, the pressing member 52 is formed with a plurality of (three in this example) through-grooves 52 a extending in a direction perpendicular to the rotation direction of the conveyor belt 11, and the pin 51 a standing on the upper surface of the end of the main body 51. Engaged. Thus, the pressing member 52 can move along the pin 51a by the length of the through groove 52a. The pressing spring 53 is a leaf spring and is attached to the upper surface of the end of the main body 51 so as to press the pressing member 52 against the inner periphery of the transport belt 11.

As shown in FIGS. 1 and 2, the pedestal 70 is formed of a U-shaped steel material in a rectangular frame shape, and further, the inner side of the rectangular frame is formed of a U-shaped steel material in a lattice frame shape. In the center of the pedestal 70, a first support portion 71 and a second support portion 72 that rotatably support the first sprocket gear 12 and the second sprocket gear 13 in a state where the conveyor belt 11 is spanned, and a rotational drive. A fixing portion 73 that fixes and supports the portion 14 and the pressing device 50 is provided.
Furthermore, an oval plate material is pasted around the conveying device 10 in the pedestal 70, and a conveying surface 74 on which the three casters 36 of the cabinet 30 can slide is provided.

(2. Warehouse operation)
Next, the operation of the warehouse 1 when the worker stores the stored item W and withdraws another stored item W from the warehouse 1 will be described. For example, the worker stores the stored item W in the cabinet 30A located at the right end of the plan view of FIG.

  Then, the operator operates an operation panel of the warehouse 1 such as a tablet (not shown) to pull out the stored item W stored in the cabinet 30B located next to the cabinet 30A of the warehouse 1 to thereby move the cabinet 30B. Is specified. As a result, as shown in FIG. 6, the rotation driving unit 14 starts driving, rotates the first and second sprocket gears 12 and 13, and starts transporting the cabinet 30 by the transport belt 11.

  At this time, the short diameter of the elliptical transport belt 11 is the smallest value T1, and the pressing member 52 of the pressing device 50 is pushed toward the inside of the transport belt 11, so that the transport belt 11 is loosened. First, it is in a stretched state. Therefore, the conveyance of the cabinet 30 by the conveyance belt 11 can be started smoothly.

  As shown in FIG. 7, when the first and second sprocket gears 12 and 13 start rotating (0 degrees) and then rotate 22.5 degrees, the short diameter of the ellipse-shaped conveyor belt 11 is the largest value. At T2, the pressing member 52 of the pressing device 50 is pressing toward the outside of the conveyor belt 11, so that the conveyor belt 11 is in a state where it is not slackened. Therefore, the conveyance of the cabinet 30 by the conveyance belt 11 can be continued smoothly.

  When the cabinet 30B of the warehouse 1 reaches the right end of the plan view of FIG. 7, the rotation drive unit 14 stops driving, stops the rotation of the first and second sprocket gears 12 and 13, and the cabinet 30 is moved by the conveyor belt 11. Stop conveyance. Then, the worker pulls out the stored item W stored in the cabinet 30B.

(3. Other)
In the above-described embodiment, the engagement portions 17 of the first and second sprocket gears 12 and 13 are configured to be provided at a total of eight locations at 45 ° intervals, but may be provided at a plurality of three or more locations. .

Moreover, although the cabinet 30 is configured to be arranged on the transport belt 11, the number of arrangement is not limited to ten, and may be an arbitrary number.
Further, the pressing device 50 may be omitted when the conveyor belt 11 is not slack.

(4. Effect)
The warehouse 1 according to the present embodiment is a warehouse 1 for storing a stored item W, and a plurality of links 15 are formed in a disk shape with a conveyor belt 11 connected at an end by an endless track by a joint 16, and on the periphery. The first sprocket gear 12 in which the engaging portions 17 that can be engaged with the joint 16 are provided at intervals of the length of one link 15 are formed in the same shape as the first sprocket gear 12. A second sprocket gear 13 that is spaced apart.

  In addition, the rotary drive unit 14 that rotationally drives one of the first sprocket gear 12 and the second sprocket gear 13 in a state where the conveyor belt 11 is bridged, and a box shape that can store the stored item W, are formed on the outer surface. The first support portion 71 rotatably supports the cabinet 30 in which the joints 16 at both ends of the link 15 are fixed to each other, and the first sprocket gear 12 and the second sprocket gear 13 in a state where the conveyor belt 11 is bridged. And a second support part 72, a fixing part 73 for fixing and supporting the rotation driving part 14, and a pedestal provided with a conveying surface 74 for sliding the cabinet 30 as the conveying belt 11 rotates.

  According to this, since it is a transport mechanism of the transport belt 11 and the first and second sprocket gears 12 and 13, the structure is simple, it can be constructed at low cost, and it is linked to the outer surface (side surface 32) of the cabinet 30. Since the joints 16 at both ends of the 15 are fixed, the cabinet 30 can be transported smoothly.

  Moreover, since the cabinet 30 has the sliding member (caster 36) which can slide on the conveyance surface 74, it can convey still more smoothly.

  Moreover, since the pressing device 50 that presses the transport belt 11 from the inside to the outside is fixedly supported by the fixing portion 73, the slack of the transport belt 11 can be taken and the cabinet 30 can be transported smoothly.

  1: Warehouse 10: Conveying device 11: Conveying belt 12: First sprocket gear 13: Second sprocket gear 14: Rotation drive unit 15: Link 16: Joint 17: Engaging unit 30: Cabinet 34: Bracket 36: Caster 50: Pressing device 70: pedestal 71: first support part 72: second support part 73: fixing part 74: transport surface W: stored item

Claims (3)

A warehouse for storing stored items,
A transport belt in which a plurality of links are connected by an endless track by a joint at the end;
A first sprocket gear that is formed in a disk shape and has an engagement portion that is engageable with the joint on the periphery at a distance of one link length;
A second sprocket gear that is formed in the same shape as the first sprocket gear and is spaced apart from the first sprocket gear by a predetermined distance;
A rotational drive unit that rotationally drives one of the first sprocket gear and the second sprocket gear in a state where the conveyor belt is bridged;
A cabinet that is formed in a box shape that can store the stored items, and the joint between the joints at both ends of the link is fixed to the outer surface;
A first support portion and a second support portion for rotatably supporting the first sprocket gear and the second sprocket gear in a state where the conveyor belt is stretched; a fixing portion for fixing and supporting the rotation driving portion; Bei example and a pedestal transport surface is provided to slide the cabinet with the rotation of the conveyor belt,
The pedestal is provided with a pressing device,
The pressing device is a device that contacts the inner periphery of the conveyor belt and presses the conveyor belt from the inside to the outside,
The pressing device has a main body, a pressing member, and a pressing spring,
The main body is arranged such that an end portion faces an inner periphery of the conveyor belt,
The pressing member protrudes from the main body and is arranged so as to be movable in a direction perpendicular to the rotation direction of the transport belt,
The pressing spring is attached to the main body so as to press the pressing member against the inner periphery of the conveyor belt.
Warehouse. A warehouse for storing stored items,
A transport belt in which a plurality of links are connected by an endless track by a joint at the end;
A first sprocket gear that is formed in a disk shape and has an engagement portion that is engageable with the joint on the periphery at a distance of one link length;
A second sprocket gear that is formed in the same shape as the first sprocket gear and is spaced apart from the first sprocket gear by a predetermined distance;
A rotational drive unit that rotationally drives one of the first sprocket gear and the second sprocket gear in a state where the conveyor belt is bridged;
A cabinet that is formed in a box shape that can store the stored items, and the joint between the joints at both ends of the link is fixed to the outer surface;
A first support portion and a second support portion for rotatably supporting the first sprocket gear and the second sprocket gear in a state where the conveyor belt is stretched; a fixing portion for fixing and supporting the rotation driving portion; A pedestal provided with a conveying surface for sliding the cabinet with rotation of the conveying belt,
The pedestal is provided with a pressing device,
The pressing device is a device that contacts the inner periphery of the conveyor belt and presses the conveyor belt from the inside to the outside to remove the slack of the conveyor belt,
The pressing device has a main body, a pressing member, and a pressing spring,
The main body is formed in a flat plate shape, and is arranged so that the end faces the inner periphery of the transport belt,
The pressing member protrudes from the upper surface of the end of the main body and is arranged to be movable in a direction perpendicular to the rotation direction of the conveyor belt,
The pressing member is formed with a plurality of through grooves extending in a direction perpendicular to the rotation direction of the conveyor belt, and is engaged with a pin standing on the upper surface of the end of the main body. It is possible to move along the pin by the length of the through groove,
The pressing spring is a leaf spring, and is attached to the upper surface of the end of the main body so as to press the pressing member against the inner periphery of the conveyor belt.
Warehouse. When the minor axis of the ellipse-shaped conveyor belt is the smallest value, the pressing member of the pressing device is pushed toward the inside of the conveyor belt, so that the conveyor belt is stretched loosely And
When the minor axis of the elliptical conveyor belt has the largest value, the pressing member of the pressing device presses the outer side of the conveyor belt, so that the conveyor belt is not loosely stretched. The warehouse according to claim 1 or 2 which will be in the state where it was done.

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