JP2005082398A - Movable load shelf - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a movable load shelf having less number of parts and enabling picking therefrom without moving the movable shelf and the other movable shelves when both sides of the movable shelf are occupied by a fixed load shelf or the other movable load shelves by a simple and inexpensive structure. <P>SOLUTION: The pair of load shelves 9L and 9R are installed on a vehicle 7 on both sides of a working space 8 for load retrieval operation. One line of rail 20 supported on a plurality of through beams 12 installed across both load shelves 9L and 9R is disposed on the upper side of the working space 8, and a picking cart 30 moving in the working space 8 is installed by suspending it from the rail 20. A deck 36 on which the picked load is mounted is installed on the picking cart 30. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a moving load shelf.

  In order to increase the storage efficiency of the warehouse, at least one mobile load rack is arranged between a pair of fixed load racks, and between the selected fixed load rack and the mobile load rack adjacent thereto, or A technique for moving the moving load rack so that a work path for loading and unloading work is opened between the selected moving load rack and the adjacent moving load rack; A moving load shelf provided with a pair of load shelves with a passage for unloading work using a handcart is described in Patent Document 1 described later.

  In addition, a mast (guide pillar) that moves horizontally in the longitudinal direction of the load shelf using a pair of upper and lower rails as guides in the space for unloading work formed between the load shelves, and ascending and descending using the mast as a guide Japanese Patent Application Laid-Open No. 2004-228688 describes a transporting device that includes a workbench to perform.

And a telescopic mast that horizontally moves in the longitudinal direction of the cargo rack using a pair of rails arranged above the space in a space for unloading work formed between the cargo racks, and the telescopic mast. Patent Document 3 discloses a pallet picking device including a workbench (stage) connected to the lower end of the pallet.
JP-A-6-329214 JP-A 48-6464 JP 2001-106305 A

  In the moving load shelf described in Patent Document 1, the wheelbarrow may come into contact with the load shelf and cause collapse in the load shelf or the wheelbarrow. In order to solve this problem, if a rail that guides the movement of the wheelbarrow is provided on the floor surface of the passage, contact between the wheelbarrow and the cargo rack can be prevented, but there is a possibility that the operator may hit the rail and fall down. is there.

  When the technique described in Patent Document 3 is applied to a moving load shelf, a work table (stage) on which picked goods and an operator are placed and a pair of rails for guiding the movement of the telescopic mast are located above the picking work space. However, there is no possibility that the operator will go to the rail that guides the movement of the workbench, but the number of parts is large, the assembly time is long, and the assembly cost is high. There is a similar problem even if the technique described in Patent Document 2 is applied to a moving load shelf. Moreover, in the prior art described in Patent Document 2, since the movement of the work table is automatically controlled, there is a problem that a very complicated and expensive control device is required, and the equipment cost is remarkably expensive.

  In consideration of these problems of the prior art, the present invention has a simple and inexpensive configuration with a small number of parts, so that the moving load is closed when both sides of the moving load are blocked by a fixed load or another moving load. It is an object of the present invention to provide a moving load shelf that can be picked from the moving load shelf without moving the shelf or another moving load shelf.

  In order to achieve this object, the present invention relates to a moving load shelf in which a pair of load shelves are installed across a work space for unloading work on a carriage, and both load shelves are located above the work space. A plurality of beams installed across a pair of cargo racks at appropriate intervals in the longitudinal direction, a single rail fixed below the center of the plurality of beams, and suspended from the rails The present invention adopts a technical means characterized in that it comprises a picking cart that moves in a work space, and the picking cart is provided with a loading platform on which picked goods are mounted.

  According to this configuration, even if both sides of the moving load shelf are blocked by the fixed load shelf or other moving load shelves, the worker can, for example, use the permanent passage or the worker passage provided on the opposite side as necessary. Since you can enter the work space and take out the luggage from the cargo racks on both sides of the work space, you can move other mobile cargo racks that block the cargo rack and the movable cargo rack, and there is a work path next to the mobile cargo rack. There is no need to wait until it is opened, and the workability of the unloading work can be significantly improved. In addition, since the movement of the picking cart is guided by the rail, there is no possibility that the picking cart will come into contact with the load rack, and there is a possibility that the collapsing may occur in the load rack or in the picking cart due to the contact between the picking cart and the load rack. Also disappear. In addition, since only one rail for guiding the picking cart is provided, the number of parts is small and the configuration is simplified.

  In the present invention, the beam supporting the one rail may be provided separately from the beam connecting the columns of the load shelf arranged in the moving direction of the movable load shelf, but the moving load is sandwiched between the work spaces. It can be constituted by a through beam that connects a pair of load rack columns arranged in the moving direction of the rack. Use of this through beam can significantly reduce the number of parts, further shorten the assembly time, and further reduce the assembly cost.

  By the way, the rail extends from the work space to a permanent passage provided in one or both of the directions perpendicular to the moving direction of the moving load shelf so that the loading platform of the picking cart can be moved to the permanent passage. More preferably. Further, instead of this configuration, an auxiliary rail located on the extension line of the rail of the movable luggage rack is provided in the permanent passage, and the picking cart is transferred between the rail of the movable luggage rack and the auxiliary rail. You may comprise.

  According to these configurations, since the loading platform of the picking cart can be moved to the permanent passage and the cargo can be easily taken out from the loading platform to the permanent passage, the workability of the unloading operation can be further enhanced.

  The picking cart is provided with a suspension traveling device that suspends the picking cart from the rail so as to be movable in the longitudinal direction of the load shelf, and the suspension traveling device includes a motor such as an electric motor or an internal combustion engine as necessary. And the picking cart can be driven by the power of the prime mover.

  According to this configuration, the worker is released from the work of pushing and pulling the picking cart, and the labor load on the worker is further greatly reduced.

  According to the present invention, since the work space for picking work is provided between the loading shelves of the moving luggage rack, both sides of the moving luggage rack are blocked by other moving luggage racks and fixed loading racks. However, since the worker can enter the work space and pick from the load shelf without moving the movable load shelf or another movable load shelf, the workability of the unloading operation is greatly improved. Moreover, since the picking cart movement is guided by a single rail, the number of parts is smaller and the configuration is much simpler and the assembly time is shorter than when a pair of rails are provided for guiding the picking cart movement. It can be shortened and the assembly cost can be greatly reduced.

  Of course, since the picking cart is guided by the rails and moves, the picking cart can contact the load rack, and the load in the load rack and the load collapse in the picking cart due to the picking cart contacting the load rack can be ensured. Can be prevented. In addition, since the rail is arranged on the upper side of the work space, there is no possibility that the operator may go to the rail.

  In the present invention, when a configuration is adopted in which the beam is composed of a through beam connecting a pair of load rack straddles across a work space, the number of parts can be further greatly reduced and the configuration is further increased. As a result, the assembly time can be further shortened, and the assembly cost can be greatly reduced.

  Also, in the present invention, the rail is extended to a permanent passage used for loading and unloading provided in one or both of the directions perpendicular to the moving direction of the moving load shelf, and the loading platform of the picking cart is provided. By adopting a configuration characterized in that it can be moved to a permanent passage, the loading platform of the picking cart can be moved to the permanent passage and unloaded from the loading platform to the permanent passage easily. It is possible to further improve the properties.

  Furthermore, in the present invention, the picking cart is provided with a work table on which an operator gets on and picks in addition to the loading platform, and a traveling drive device is provided for traveling the picking cart with the rail as a guide. By adopting the configuration characterized by the fact that the worker is released from the labor of pushing and pulling the picking cart, the labor load of the worker can be further reduced and the workability of the unloading work can be reduced. Can be further increased.

  A moving luggage rack according to an embodiment of the present invention will be described in detail with reference to the drawings as follows. In the drawings, FIG. 1 is a plan view of a movable luggage rack according to the present invention, FIG. 2 is a front view of the movable luggage rack, FIG. 3 is a longitudinal side view of the movable luggage rack, and FIG. FIG. 5 is a perspective view of the mobile load rack, FIG. 5 is a plan view of the load rack equipment including the mobile load rack, and FIG. 6 is a front view of the load rack equipment.

  5 and 6 are two fixed luggage shelves 2L and 2R arranged at both left and right ends when viewed from the front, and 2 arranged so as to be movable in the left and right directions between them. As shown in FIG. 5, in order to load and unload from the cargo rack facility 1 on the front side (front side), as shown in FIG. The permanent passage 4 is provided. On the ground between the fixed load shelves 2L and 2R, a load rail 5 is installed to support the weight of both the moving load shelves 3L and 3R, and guide the movement of the load load shelves 3L and 3R. For example, a temporary passage 6 connected to the permanent passage 4 is opened between the right fixed load shelf 2R and the right movable load shelf 3R, and fixed by, for example, a forklift that has entered the temporary passage 6 via the permanent passage 4. The loading shelf 2R or the moving loading shelf 3R can be loaded, or for example, picking from the fixed loading shelf 2R or the moving loading shelf 3R can be performed using an order picking lift.

As shown in FIGS. 1, 2, and 4, the left movable load rack 3 </ b> L is provided with a carriage 7 that moves in the left-right direction with the support rail 5 as a guide, and an unloading operation ( A pair of left and right cargo racks 9L and 9R are provided with a work space 8 for picking. As shown in FIG. 5, the carriage 7 is formed in a rectangular shape that is short in the left-right direction and long in the front-rear direction in plan view, and is driven by a motor (not shown) such as an electric motor and moves in a direction parallel to the short side.

  In addition, as shown in FIG. 4, there are a plurality of moving load shelves 3 </ b> L standing on the carriage 7 at a predetermined interval in the direction perpendicular to the movement direction of the carriage 7, that is, in the front-rear direction. 4) one-span portal ramen structure 10 is provided. As shown in FIGS. 2 and 4, the portal ramen structure 10 is formed between the left and right outer columns 11 raised from the left and right ends of the carriage 7 when viewed from the front, and the upper ends of the outer columns 11. It is comprised with the through beam 12 constructed by.

  As shown in FIG. 4, the lower end of the outer column 11 is fixed to the carriage 7, and the upper ends of the outer columns 11 arranged in the front and rear are the outer upper girders 13, and the intermediate heights are between the outer middle columns. Each digit 14 is connected in order. Further, as shown in FIGS. 1 to 4, inner struts 15 are provided at a predetermined distance from each outer strut 11 at a position overlapping with each outer strut 11 when viewed from the side. A lower end of each inner column 15 is fixed to the carriage 7, and an upper end portion thereof is fixed to the through beam 12. Further, as shown in FIGS. 3 and 4, at the position of each inner column 15, the through beam 12 is sequentially connected by an inner upper beam 16 that overlaps with the outer upper beam 13 when viewed from the side surface. The intermediate height portions are sequentially connected by an inner middle girder 17 that overlaps with the outer middle girder 14 when viewed from the side. In addition, as shown in FIGS. 2 and 4, the outer support column 11 and the inner support column 15 arranged inside and outside are connected by a middle beam 18 at an intermediate height portion thereof.

  In plan view, the load receiving plate 19 covering the space developed between the inner upper girder 15 and the outer upper girder 11 over the entire length in the front-rear direction of the carriage 7 is provided on the upper surface of the carriage 7, the inner middle girder 17, The left and right loading shelves 9L and 9R including the upper and lower two-stage load receiving plates 19 are configured by being stretched on the upper surfaces of the beam 14 and the middle beam 18.

  Accordingly, the work space 8 is a space defined by the carriage 7, the inner struts 15 of the left and right cargo racks 9L and 9R, and the through beams 12 when viewed from the front. 9L, 9R inner upper girder 15 and a space defined by the frame structures 10 at both front and rear ends. When viewed from the side, the upper surface of the carriage 7, the inner upper girder 15 of the left and right cargo racks 9L, 9R, It is a rectangular space defined by the frame structures 10 at the front and rear ends.

  A rail 20 fixed to the central lower surface of the through beam 12 of each portal ramen structure 10 is provided on the lower lower surface of the through beam 12 of each rigid frame structure 10. As shown in FIGS. 1 and 3, a picking cart 30 described later on the rail 20 includes a suspension traveling device 21A including a prime mover 22 for traveling the picking cart 30, and a suspension traveling device 21B not equipped with a prime mover. It is supported through suspension.

  The picking cart 30 may be hung on the rail 20 with one suspension traveling device, but by hanging on the rail 20 with two suspension traveling devices 21A, 21B spaced at an appropriate interval in the moving direction of the picking cart, The picking cart 30 can be prevented from tilting or swinging in the moving direction, and the lower end of the picking cart 30 can be brought close to the bottom surface of the work space 8 to increase the volume of the picking cart 30. .

  7 is a plan view of a suspended traveling device 21A provided with a prime mover 22, FIG. 8 is a front view thereof, and FIG. 9 is a side view thereof. As shown in FIGS. 7 to 9, the suspended traveling device 21 </ b> A includes a square groove-shaped bracket 23 as viewed from the front, and in the groove of the bracket 23, left and right groove side walls 24 of the bracket 23 Two wheels 25 that are rotatably supported around a horizontal axis (left and right axis) are disposed at appropriate intervals in the front-rear direction.

  The prime mover 22 is composed of, for example, an electric motor with a brake (electric motor), and is supported on the outer surface of the groove side wall 24 of one of the brackets 23 (right side in this case) via, for example, a speed reduction transmission mechanism 26, and the prime mover 22 One of the left and right wheels 25 (or two wheels) may be driven via the deceleration transmission mechanism 26.

  As shown in FIG. 8, the groove bottom wall 27 of the bracket 23 is fixed to the ceiling frame 31 of the picking cart 30, and the rail head 28 of the rail 20 is held between the groove bottom wall 27 and the wheel 25. The suspension traveling device 21 </ b> A travels with the rail 20 as a guide by rolling the wheel 25 on the upper surface of the head 28. Further, the position of the picking cart 30 is controlled by starting and stopping the prime mover 22. A control operation tool (switch) for controlling starting and stopping of the prime mover 22 is provided in the picking cart 30.

  The power that is the power source of the prime mover 22 is supplied from the outside using, for example, a captyre cable. A battery may be mounted and electric power may be supplied from the battery. The suspended traveling device 21B not provided with the prime mover 22 is configured in the same manner as the suspended traveling device 21A with the prime mover except that the prime mover 22 and the transmission mechanism 26 are omitted.

  By the way, as shown in FIGS. 2 and 3, the picking cart 30 includes a ceiling frame 31, six columns 32 suspended from the ceiling frame 31, and a floor fixed to the lower ends of these columns 32. 33. As shown in FIG. 1, the ceiling frame 31 includes a rectangular peripheral frame 34 that is long in the front-rear direction, and two cross members 35 that are arranged in parallel with the short sides of the peripheral frame 34 at an appropriate interval in the front-rear direction. The suspension traveling devices 21A and 21B are fixed to the cross members 35.

  As shown in FIG. 3, the support columns 32 are suspended from the four corners of the peripheral frame 34 and an intermediate front portion in the front-rear direction of the peripheral frame 34, and the front floor from the intermediate front support column 32 in the front-rear direction. A portion 33 is a loading platform 36 on which picked luggage is placed, and a rear portion is a working platform 37 on which an operator gets on. In addition, an upper and lower two-stage loading rack 38 on which picked loads are placed is provided above the loading platform 36 as necessary. Although not shown in the drawing, on the work table 37, a fixed type or fixed position located at a predetermined height from the floor 33 is provided so that a high-position baggage can be safely picked if necessary. Is provided with a foldable step.

  The home position of the picking cart 30 is set in the work space 8 so as not to obstruct the passage of the permanent passage 4 as shown by a solid line in FIGS. 1 to 3, for example. From the worker passage provided on the opposite side of the normal passage 4 of the carriage 7 to the work space 8, the vehicle 7 enters the work table 37 of the empty picking cart 30 stopped at the home position. An operator who has entered the picking cart 30 operates the control operation tool (switch) to control the prime mover 22, moves the picking cart 30 to the position of a preselected baggage, picks the baggage, picks up the load carrier 36 or , Is placed on the load shelf 38. When the previously selected package is taken out, the picking cart 30 is moved to the position of the next selected package as necessary, and picking is performed.

  In addition, as a method of stopping the picking cart 30 that has started to move, there are a manual control method by an operator's switch operation and the like, and a method of automatically stopping at the position of the load, and as a method of automatically stopping, numerical control, What is necessary is just to employ | adopt position detection by a timer control, a sensor, etc.

  When the picking of the luggage as scheduled is completed, the picking cart 30 is moved toward the permanent passage 4, the picked luggage is taken out from the picking cart 30 to the permanent passage 4, and is placed on, for example, a wheelbarrow and carried out of the warehouse. . Here, in this embodiment, as shown in FIGS. 1 and 3, the rail 20 extends from the work space 8 to the permanent passage 4 to move the loading platform 36 to the central portion in the passage width direction of the permanent passage 4. Thus, it is possible to easily take out the cargo to the permanent passage 4 from the cargo bed 36 and the cargo shelf 38 thereabove.

  After taking out the picked baggage from the picking cart 30 in this way, the worker moves the picking cart 30 to the home position, stops, and descends from the work space 8 to the permanent passage 4. In this embodiment, since a part of the work table 37 can be moved to the permanent passage 4, the worker can get off the permanent passage 4 while taking out the cargo from the cargo bed 36 or the shelf 38. . Of course, when the loading platform 36 of the picking cart 30 is positioned in the permanent passage 4, the package is loaded on the loading platform 36 or the loading rack 38, and then the loading is loaded into a predetermined position on the loading rack 9L, 9R. You can also.

  Now, as described above, an operator gets on and off the picking cart 30 in the moving load shelf 3L, picks up a load from the load shelves 9L and 9R to the picking cart 30, and takes out the load from the picking cart 30 in the permanent passage 4. Can be executed regardless of whether or not both sides of the moving load rack 3L in the moving direction are blocked by the fixed load rack 2L and the other moving load rack 3R. Therefore, according to this movable luggage rack 3L, the movable luggage rack 3L and other movable luggage racks 3R are moved and the movable luggage rack 3L is not waited for the temporary passage 6 to be opened beside the movable luggage rack 3L. The picking of 3L luggage can be performed, and the workability of unloading work is remarkably improved.

  Moreover, since the number of rails 20 that guide the movement of the picking cart 30 is halved compared to the prior art, the number of parts of the moving load rack 3L can be reduced, and the configuration of the moving load rack 3L is very simple. As a result, the assembly work time can be shortened and the assembly work cost can be greatly reduced. Further, by guiding the movement of the picking cart 30 with the single rail 20, the picking cart 30 is prevented from coming into contact with the loading racks 9L and 9R, and the load caused by the contact of the picking cart 30 with the loading racks 9L and 9R is prevented. Load collapse in the shelves 9L and 9R and the picking cart 30 can be prevented. Of course, there is no possibility that the operator will hit the rail 20 and fall.

  The configuration of the other moving load rack 3R in the load rack facility 1 is exactly the same as that of the moving load rack 3L, and the same action or effect can be obtained.

It is a top view of the present invention. It is a front view of the present invention. It is a vertical side view of the present invention. It is a perspective view of the present invention. It is a top view of the present invention. It is a front view of the present invention. It is a top view of the present invention. It is a front view of the present invention. It is a side view of the present invention.

Explanation of symbols

3L mobile load shelf 3R mobile load shelf 4 permanent passage 7 cart 8 work space 9L load shelf 9R load shelf 12 through beam 19 rail 20 picking cart 36 load platform 37 work platform

Claims (4)

In a moving cargo rack where a pair of cargo racks are installed across a work space for unloading work on a carriage,
A plurality of beams laid over a pair of cargo racks at an appropriate interval in the longitudinal direction of both cargo racks on the upper side of the work space, and one strip fixed below the central portion of the beam beams A rail, and a picking cart that hangs on the rail and moves in the work space,
A moving load shelf, wherein the picking cart is provided with a loading platform for loading picked items.   The moving load shelf according to claim 1, wherein the beam is a through beam connecting struts of a pair of load shelves across a work space.   The rail is extended to a permanent passage used for loading and unloading provided in one or both of the directions perpendicular to the moving direction of the movable loading shelf so that the loading platform of the picking cart can be moved to the permanent passage. The moving load shelf according to claim 1 or 2, characterized in that it is made.   In addition to the loading platform, the picking cart is provided with a work platform on which an operator gets on and picks, and a traveling drive device that travels the picking cart with the rail as a guide is provided. The moving load shelf according to any one of claims 1 to 3.

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