JP2016060621A - Article storage facility - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an article storage facility capable of providing a fall prevention body, without causing significant limitation to arrangement relation between an article storage device and an article transfer device which transfer an article.SOLUTION: An article storage facility 1 comprises: a ladder 50 for a worker, which is detachably or fixedly attached to an article storage device 10 from a first direction L1 side, so as to have a part which is disposed between a pair of article storage shelves 11, 12 in view from an extension direction L; and a fall prevention body 60 for surrounding partially a worker who ascends and descends the ladder 50 from both sides of a width direction W and the first direction L1 side. The fall prevention body 60 is fixed to a first mast 31 and a second mast 32 respectively so as to be supported by the first mast 31 and the second mast 32 at both sides of the width direction W.SELECTED DRAWING: Figure 5

Description

  The present invention is an article storage device including a pair of article storage shelves arranged in a horizontal direction facing each other across a movement path of an article transporter, and one side in the extending direction of the movement path with respect to the article storage apparatus. An article transfer device that is arranged side by side on the first direction side and transfers an article to and from the article storage device at a plurality of article transfer positions set in the vertical direction. A first mast that is erected along the direction, and an article is transferred between the first mast and the article storage device at a height corresponding to each of the plurality of article transfer positions. A first lifting platform is provided on one side of the central portion of the moving passage in the width direction of the moving passage, and is supported by the second mast so as to be raised and lowered by the second mast. Multiple goods transfer position with Of a second elevation frame for transferring an article between the article storage device at a height corresponding to an article storage facility having the other side than the center portion of the path in the width direction.

  As such an article storage facility, an article storage facility described in JP-A-7-109008 (Patent Document 1) is known. The article storage facility described in Patent Document 1 includes a walkway (2, 3) constructed between a pair of article storage shelves (1A, 1B), and a ladder for an operator to climb up the walkway (2, 3) ( 22 and 23). The worker can easily perform maintenance work (maintenance inspection work) on the upper part of the article storage shelf by climbing the corridor using the ladder.

Japanese Patent Laid-Open No. 7-109008

  By the way, depending on the height of the ladder, the installation environment, and the like, a fall prevention body (back basket) that partially surrounds the worker ascending and descending the ladder may be provided. In the case where the article storage facility is provided with a fall prevention body, the fall prevention body can be provided without greatly restricting the arrangement relationship between the article storage apparatus and the article transfer apparatus in which the article is transferred. It is desirable to be provided. This is because when the arrangement relationship is largely restricted, the installation cost of the equipment increases due to the complicated construction of the equipment, and the space occupied by the article storage device and the article transfer device increases. This is because there is a risk of increasing the size. However, Patent Document 1 does not include a description of the fall prevention body, and the arrangement configuration of the fall prevention body that does not greatly restrict the arrangement relationship between the article storage device and the article transfer device has not yet been clarified. Absent.

  Therefore, it is desired to realize an article storage facility that can be provided with a fall prevention body without greatly restricting the arrangement relationship between the article storage apparatus to which the article is transferred and the article transfer apparatus.

  According to the present invention, an article storage device comprising a pair of article storage shelves arranged side by side in the horizontal direction across the movement path of the article carrier, and one of the extending directions of the movement path with respect to the article storage apparatus An article transfer device that is arranged side by side on the first direction side and transfers an article to and from the article storage device at a plurality of article transfer positions set in the vertical direction. A first mast standing up and down along the vertical direction, and the article storage device at a height corresponding to each of the plurality of article transfer positions supported by the first mast so as to be movable up and down. A first mast for transferring articles between the first mast and the second mast that is provided upright along the up-and-down direction while being provided on one side of the central portion of the moving passage in the width direction of the moving passage; By the second mast A second lifting platform that is supported so as to be movable up and down and that transfers articles to and from the article storage device at a height corresponding to each of the plurality of article transfer positions; The characteristic configuration of the article storage facility provided on the other side of the center portion is the above-described article storage device with respect to the article storage device so as to have a portion arranged between the pair of article storage shelves as viewed in the extending direction. A ladder for an operator that is detachably or fixedly attached from the first direction side, and a fall prevention body that partially surrounds the worker who ascends and descends the ladder from both sides in the width direction and the first direction side. The fall prevention body is fixed to each of the first mast and the second mast so as to be supported on both sides in the width direction by the first mast and the second mast. It is in.

According to said characteristic structure, since a fall prevention body is fixed to each of the 1st mast and the 2nd mast, in the arrangement | positioning relationship between the articles | goods storage apparatus and articles | goods transfer apparatus in which articles are transferred It is possible to realize an article storage facility capable of providing a fall prevention body without giving a large restriction.
If it explains supplementarily, a 1st mast is a mast which supports a 1st lifting platform so that raising / lowering is possible, and a 2nd mast is a mast which supports a 2nd lifting platform so that raising / lowering is possible. Therefore, even in the configuration in which the article storage device and the article transfer device are arranged side by side in the extending direction as described above, there is generally a space in which no other member is arranged around the first mast or the second mast. Exists. In said characteristic structure, a fall prevention body can be provided using said existing space by employ | adopting the structure which fixes a fall prevention body to each of a 1st mast and a 2nd mast. As a result, the fall prevention body can be provided without significantly restricting the positional relationship between the article storage device and the article transfer device.
In addition, according to said characteristic structure, compared with the case where the advantage which can attain weight reduction of a ladder compared with the case where a fall prevention body is fixed to a ladder, and the case where a support member for exclusive use which supports a fall prevention body is provided. There is also an advantage that the equipment can be simplified.

  Here, the first mast is arranged at a position that is closer to the center of the moving passage in the width direction than the first lifting platform and overlaps with the first lifting platform as viewed in the width direction, The second mast is disposed at a position closer to the center of the moving passage in the width direction than the second lifting platform and overlaps with the second lifting platform when viewed in the width direction, and the fall prevention The body is preferably provided so as to protrude toward the first direction with respect to the first mast and the second mast.

  According to this configuration, a space is formed on the first direction side with respect to the first mast and the second mast so as to extend from the central portion of the moving passage to both sides in the width direction, and the fall prevention body is provided using the space. be able to. Therefore, the length (size) in the width direction and the extending direction of the fall prevention body can be appropriately ensured without greatly restricting the arrangement relationship between the article storage device and the article transfer device.

  As described above, in the configuration in which the fall prevention body is provided so as to protrude toward the first direction with respect to the first mast and the second mast, the first mast and the second mast are: The ladder is disposed at the same position in the extending direction, and the ladder has a portion disposed between the first mast and the second mast from the attachment portion with respect to the article storage device. It is preferable that the apparatus is attached to the article storage device so as to extend in the direction side and the lower side.

  According to this configuration, the ladder can be attached to the article storage device using the space between the first mast and the second mast with an inclination in consideration of ease of ascending and descending of the worker. Moreover, it can also suppress that the space | interval of the extension direction between the part in which the ladder in an article | item storage apparatus is attached, and a 1st mast and a 2nd mast receives restrictions by a ladder. Therefore, not only the fall prevention body but also the ladder can be provided without greatly restricting the arrangement relationship between the article storage device and the article transfer device.

  Further, in the article storage facility having each configuration described above, the article storage apparatus includes a walkway between the pair of article storage shelves for the worker who moves along the extending direction to walk between the pair of article storage shelves. It is preferable that a person can climb the corridor and is attached to the article storage device, and at least a part of the fall prevention body is disposed at a position higher than the corridor.

  According to this configuration, the worker can perform maintenance work on the article storage device in the space above the walkway in the moving passage by climbing the walkway using the ladder. At this time, since at least a part of the fall prevention body is disposed at a position higher than the corridor where the worker climbs, safety of the worker ascending and descending the ladder can be appropriately ensured.

The perspective view of a part of the article storage facility according to the embodiment of the present invention The side view of a part of the article storage facility according to the embodiment of the present invention The perspective view of a part of the article transfer device according to the embodiment of the present invention A side view of a part of an article transfer device according to an embodiment of the present invention The top view of a part of the article storage facility according to the embodiment of the present invention

  An embodiment of an article storage facility according to the present invention will be described with reference to the drawings. As shown in FIGS. 1, 2, and 5, the article storage facility 1 includes an article storage device 10 and an article transfer device 30. The article storage device 10 includes a pair of article storage shelves that are arranged to face each other in the horizontal direction H with the movement path 21 of the article transporter 20 in between. That is, the movement passage 21 is formed between a pair of article storage shelves that are spaced apart from each other in the horizontal direction H. Here, one of the pair of article storage shelves is a first article storage shelf 11 and the other is a second article storage shelf 12. The width direction W of the movement passage 21 is a horizontal direction H in which the first article storage shelf 11 and the second article storage shelf 12 face each other, and the extending direction L of the movement passage 21 is a horizontal direction orthogonal to the width direction W. H. Hereinafter, a direction toward one side in the extending direction L is referred to as a first direction L1, and a direction toward the other side in the extending direction L (a direction opposite to the first direction L1) is referred to as a second direction L2.

  As shown in FIG. 2, the article 2 is stored in each of the first article storage shelf 11 and the second article storage shelf 12. The article 2 is, for example, a container or a cardboard box. Each of the first article storage rack 11 and the second article storage shelf 12 includes a plurality of (in this example, six) storage units 17 in the vertical direction V (vertical direction). As shown in FIG. 1, each of the storage units 17 includes a support 16 that can place and support a plurality of articles 2 while shifting the position in the extending direction L. That is, a plurality of articles 2 can be stored side by side in the extending direction L in each of the storage portions 17. Each of the first article storage shelf 11 and the second article storage shelf 12 includes a plurality of support columns 14 extending along the vertical direction V, and a plurality of beam members 15 (horizontal members) extending along the extending direction L. ing. In the present specification, “along a certain direction” is not limited to being parallel to the direction, but is used as a concept including a case of being inclined with respect to the direction (for example, an inclination angle of less than 10 degrees). The column 14 is erected on the floor surface of the article storage facility 1, and the beam material 15 is supported by the column 14. The support 16 is installed between a pair of beam members 15 arranged at different positions in the width direction W at the same position in the vertical direction V.

  The article storage apparatus 10 includes a relay unit that supports the article 2 received in the article storage apparatus 10 and the article 2 output from the article storage apparatus 10 at an end of the article storage apparatus 10 on the first direction L1 side. ing. Specifically, the article storage device 10 includes a first relay unit 91 at an end of the first article storage shelf 11 on the first direction L1 side, and an end of the second article storage shelf 12 on the first direction L1 side. The second relay unit 92 is provided. In this embodiment, each of the 1st relay part 91 and the 2nd relay part 92 is comprised using the conveyor (this example roller conveyor) which conveys the articles 2 mounted and supported in the extending direction L. Moreover, in this embodiment, the 1st relay part 91 is provided corresponding to each of the storage parts 17 of the 1st article storage shelf 11, and is provided with the same number of stages (6 stages in this example) as the said storage part 17. The relay units 92 are provided in the same number of stages (six in this example) as the storage units 17 corresponding to the storage units 17 of the second article storage shelf 12. Each of the first relay portions 91 is arranged side by side on the first direction L1 side with respect to the storage portion 17 of the corresponding step (the same step) in the first article storage shelf 11, and each of the second relay portions 92 is The second article storage shelf 12 is arranged side by side on the first direction L1 side with respect to the storage section 17 of the corresponding stage (the same stage).

  The article transport body 20 is configured to travel and move along the extending direction L in the moving path 21. The article transport body 20 includes a transfer device that transfers the article 2 between the (self) and the transfer target unit. The transfer target part includes the storage part 17 of the first article storage shelf 11, the storage part 17 of the second article storage shelf 12, the first relay part 91, and the second relay part 92. The article transport body 20 transports the article 2 between the first relay unit 91 and the storage unit 17 or between the second relay unit 92 and the storage unit 17 by the travel operation and the transfer operation of the transfer device. To do. For example, when the article 2 is stored in the article storage device 10, the article transporter 20 transfers the article 2 supported by the first relay unit 91 or the second relay unit 92 to the first article storage shelf 11 or the second one. The two article storage shelves 12 are transported to the storage unit 17. Further, when the article 2 is unloaded from the article storage device 10, the article transporter 20 takes the article 2 stored in the storage unit 17 of the first article storage shelf 11 or the second article storage shelf 12 into the first. It is transported to the relay unit 91 or the second relay unit 92. In this example, the transfer device included in the article transport body 20 is configured using a mechanism that moves a pair of clamp portions that sandwich the article 2 from both sides in the extending direction L in the width direction W.

  The travel path of the article transport body 20 is formed in a plurality of stages in the vertical direction V in the movement path 21. In the present embodiment, the travel path of the article transporter 20 corresponds to each of the storage sections 17 of the first article storage rack 11 or the second article storage rack 12 and has the same number of stages as the storage section 17 (6 in this example). Step) is formed. The article transport body 20 includes an article 2 between the storage unit 17 at the same stage as the travel route on which the article transport body 20 travels, and the first relay section 91 or the second relay section 92 at the same stage as the travel path. Transport. At least one article transport body 20 is provided in each of a plurality of stages of travel routes. In the present embodiment, the travel path of the article transport body 20 is formed by a pair of beam members 15 that face the width direction W with the moving path 21 interposed therebetween. One of the pair of beam members 15 forming the traveling path is the beam member 15 provided in the first article storage shelf 11, and the other is the beam member 15 provided in the second article storage shelf 12. Each of the pair of beam members 15 that form the travel path includes a support surface that supports the article transport body 20 from below, and the article transport body 20 extends along the extending direction L while being supported by the support surface. Move.

  In the present embodiment, the article storage device 10 includes a pair of article storage shelves (a first article storage shelf 11 and a second article storage shelf 12) that walks along a walkway 13 where an operator who moves along the extending direction L walks. Have in between. In this example, the walkway 13 is configured by a plate-like body that is laid between a pair of beam members 15 that face in the width direction W across the moving passage 21. The plate-like body is, for example, a porous plate such as a mesh plate (net plate) or a punching plate. In the present embodiment, as shown in FIG. 2, the walkway 13 is configured such that the walking path 21 is a space in which a lower three-stage travel route is formed (a space in which the lower three-stage storage portion 17 is formed). And a space in which the upper three-stage travel route is formed (a space in which the upper three-stage storage portion 17 is formed) is provided at a position that is partitioned vertically.

  The article transfer device 30 is arranged side by side with respect to the article storage device 10 on the first direction L1 side. The article transfer apparatus 30 transfers the article 2 between (self) and the article storage apparatus 10 at a plurality of article transfer positions P (see FIG. 2) set in the vertical direction V. The article transfer position P is a height (position in the vertical direction V) set corresponding to each of the positions in the vertical direction V where at least one of the first relay unit 91 and the second relay unit 92 is provided. . In the present embodiment, both of the first relay unit 91 and the second relay unit 92 are provided at each of the six different vertical positions V, and a total corresponding to each of the six vertical positions V. Six article transfer positions P are set. The article transfer device 30 transfers the article 2 to be stored in the article storage device 10 to the first relay unit 91 or the second relay unit 92 to be transferred, and transfers the article 2 to be transferred from the item storage device 10. Received from the target first relay unit 91 or the second relay unit 92. At this time, the transfer of the article 2 is performed at the article transfer position P corresponding to the first relay unit 91 or the second relay unit 92 to be transferred. Note that the first relay unit 91 or the second relay unit 92 to be transferred is a relay unit at the same stage as the storage unit 17 at the storage destination or the source of the article 2.

  The article transfer device 30 is erected along a vertical direction V, a first mast 31 erected along the vertical direction V, a first lifting platform 41 supported by the first mast 31 so as to be movable up and down. A second mast 32 and a second lifting platform 42 supported by the second mast 32 so as to be movable up and down. Each of the first mast 31 and the second mast 32 is erected on the floor surface of the article storage facility 1. As shown in FIG. 5, the first mast 31 and the first lifting platform 41 are arranged on one side (in the width direction W) of the central portion 21 a of the moving passage 21 in the width direction W, and the first article storage shelf 11. Is also arranged on one side in the width direction W. The second mast 32 and the second lifting platform 42 are disposed on the other side (in the width direction W) of the moving passage 21 in the width direction W, and the second article storage shelf 12 is also in the width direction W. It is arrange | positioned at the other side. The first lifting platform 41 is arranged side by side on the first direction L1 side with respect to the first relay portion 91 when viewed in the vertical direction V, and the second lifting platform 42 is the second relay portion viewed in the vertical direction V. 92 are arranged side by side on the first direction L1 side.

  In the present embodiment, the first mast 31 and the second mast 32 are arranged at the same position in the extending direction L. That is, the first mast 31 and the second mast 32 are separately arranged on both sides (in the width direction W) with respect to the central portion 21a of the moving passage 21 in the width direction W at the same position in the extending direction L. ing. Here, “arranged in the same position in the extending direction L” is not limited to the case where the respective central portions in the extending direction L are arranged in the same position in the extending direction L, but in the extending direction L. This is used as a concept including a case where the respective center portions in the extending direction L are shifted in the extending direction L within a range where at least a part of each arranging region overlaps. In this example, as shown in FIG. 5, the cross-sectional shapes of the first mast 31 and the second mast 32 (the cross-sectional shape perpendicular to the vertical direction V) are parallel to the extending direction L through the central portion 21a. The lines are symmetrical with respect to each other with a straight line extending in the direction of the axis of symmetry. And the center part in the extending direction L of each of the 1st mast 31 and the 2nd mast 32 is arrange | positioned in the mutually same position in the extending direction L.

  Further, in the present embodiment, as shown in FIG. 5, the first mast 31 is closer to the center portion 21 a side of the moving passage 21 in the width direction W than the first lift 41 and is viewed in the width direction W. It is arranged at a position overlapping with one lifting platform 41. Further, the second mast 32 is arranged on the side of the central portion 21a of the moving passage 21 in the width direction W with respect to the second lifting platform 42 and at a position overlapping the second lifting platform 42 when viewed in the width direction W. Yes. In this example, the first mast 31 is disposed at a position where the entire first mast 31 overlaps with the first lifting platform 41 when viewed in the width direction W, and the second mast 32 is second when viewed in the width direction W. The entire mast 32 is disposed at a position overlapping the second lifting platform 42.

  The article transfer device 30 includes a lifting motor 43 (see FIGS. 3 and 4) corresponding to each of the first lifting platform 41 and the second lifting platform 42, and by rotating the corresponding lifting motor 43, The first lifting platform 41 and the second lifting platform 42 are moved up and down separately. 3 and 4, the first elevator 41 and the second elevator 42 are not shown in order to facilitate understanding of a ladder 50 and a fall prevention body 60 described later. In this embodiment, each of the 1st raising / lowering stand 41 and the 2nd raising / lowering stand 42 is comprised using the conveyor (this example belt conveyor) which conveys the articles 2 mounted and supported in the extending direction L. As shown in FIG. Each of the first lifting platform 41 and the second lifting platform 42 transfers the article 2 between (self) and the article storage device 10 at a height corresponding to each of the plurality of article transfer positions P. Specifically, in a state where the first elevator 41 is moved up and down to the article transfer position P corresponding to the first relay unit 91 to be transferred, that is, the first elevator 41 and the first relay to be transferred. By controlling the respective conveying operations of the first lifting platform 41 and the first relay unit 91 to be transferred in a state in which the heights of the respective article placement surfaces of the unit 91 coincide with each other, the article 2 between them is controlled. Is transferred. Further, in a state where the second lift 42 is moved up and down to the article transfer position P corresponding to the second relay unit 92 to be transferred, that is, the second lift 42 and the second relay unit 92 to be transferred. The articles 2 are transferred between the two lifting platforms 42 and the second relay part 92 to be transferred by controlling the conveying operations of the second lifting platform 42 and the second relay unit 92 to be transferred in a state where the heights of the respective article placement surfaces are matched. Is done.

  As shown in FIGS. 1 and 2, in the present embodiment, the article storage facility 1 passes the article 2 to be stored in the article storage apparatus 10 to the article transfer apparatus 30 or the article 2 to be output from the article storage apparatus 10. As conveyors for receiving from the article transfer device 30, a first conveyor 81, a second conveyor 82, a third conveyor 83, and a fourth conveyor 84 are provided. As shown in FIGS. 1 and 5, the first conveyor 81 and the third conveyor 83 are arranged side by side in the first direction L <b> 1 with respect to the first lifting platform 41 when viewed in the vertical direction V, and the second conveyor 82. And the 4th conveyor 84 is located in the 1st direction L1 side with respect to the 2nd lifting platform 42 seeing in the up-down direction V, and is arrange | positioned. With the first lifting platform 41 moved up and down to a height corresponding to the first conveyor 81, the article 2 is transferred between the first lifting platform 41 and the first conveyor 81. The article 2 is transferred between the first lifting platform 41 and the third conveyor 83 while being moved up and down to a height corresponding to the three conveyors 83. Further, the article 2 is transferred between the second elevator 42 and the second conveyor 82 in a state where the second elevator 42 is moved up and down to a height corresponding to the second conveyor 82, and the second elevator 42 Is moved up and down to a height corresponding to the fourth conveyor 84, the article 2 is transferred between the second elevator 42 and the fourth conveyor 84.

  The first lifting platform 41 is a lifting platform for receiving articles 2 that are stored in the article storage device 10, and the second lifting platform 42 is a lifting platform for supporting articles 2 that are output from the article storage device 10. In this case, the first conveyor 81 and the third conveyor 83 are warehousing conveyors, and the second conveyor 82 and the fourth conveyor 84 are warehousing conveyors. Moreover, let the 1st lifting / lowering base 41 be the lifting / lowering stand for the goods which support the goods 2 discharged from the goods storage apparatus 10, and the 2nd lifting / lowering base 42 will be the lifting / lowering base for the receipts which support the goods 2 which enter the goods storage apparatus 10 In this case, the first conveyor 81 and the third conveyor 83 are used for delivery, and the second conveyor 82 and the fourth conveyor 84 are used for entry.

  As shown in FIGS. 3 to 5, the article storage facility 1 includes an operator ladder 50 that is detachably attached to the article storage device 10 from the first direction L <b> 1 side, and an operator who goes up and down the ladder 50. And a fall prevention body 60 that partially surrounds from both sides in the width direction W and from the first direction L1 side. The ladder 50 is located with respect to the article storage device 10 so as to have a portion arranged between the pair of article storage shelves (the first article storage shelf 11 and the second article storage shelf 12) when viewed in the extending direction L. It is attached. In this example, with the ladder 50 attached to the article storage device 10, the entire ladder 50 is disposed between the pair of article storage shelves as viewed in the extending direction L. The ladder 50 includes a pair of vertical rails and a plurality of horizontal rails installed between the pair of vertical rails while being spaced apart in the longitudinal direction of the vertical rails. The ladder 50 is attached to the article storage device 10 with the horizontal rail in a direction along the width direction W. An operator goes up and down the ladder 50 with his feet on the horizontal rail from the first direction L1 side. In other words, the side of the ladder 50 where the worker ascends and descends is the first direction L1 side with respect to the ladder 50.

  As shown in FIGS. 3 to 5, the ladder 50 includes a mounting portion 51 that can be freely attached to and detached from the mounted portion 18 provided in the article storage device 10. In this example, the attached portion 18 is disposed on the second direction L2 side with respect to the first mast 31 and the second mast 32. As shown in FIG. 4, the ladder 50 is connected to the article storage device 10 by engaging the attachment portion 51 of the ladder 50 carried from the first direction L1 side with the attached portion 18 with respect to the article storage device 10. And attached from the first direction L1 side. In the present embodiment, the attached portion 18 is supported by a pair of target struts 14a that are a pair of struts 14 disposed at the end of the article storage device 10 on the first direction L1 side. The pair of target struts 14 a are separately arranged on both sides (in the width direction W) at the same position in the extending direction L with respect to the central portion 21 a of the moving passage 21 in the width direction W. The attached portion 18 is supported by the pair of target columns 14a by being fixed to a connecting member that connects the pair of target columns 14a in the width direction W. In the present embodiment, the mounted portion 18 is configured by a rod-shaped member provided along the width direction W, and the mounting portion 51 is formed by a hook-shaped member that engages the mounted portion 18 from above. It is configured. The attachment portions 51 are provided on both sides in the width direction W at the end portion (upper end portion) of the ladder 50 in the longitudinal direction of the vertical rail. In this example, in a state where the ladder 50 is attached to the article storage device 10, an end portion (lower end portion) opposite to the attachment portion 51 in the ladder 50 is used for the elevator motor 43 for the operator to pass therethrough. It is fixed with respect to the platform 44 provided on the upper side of the. Moreover, in this example, the handrail 70 which the operator who raises / lowers the ladder 50 grips is fixed to each of the pair of target columns 14a.

  In the present embodiment, the ladder 50 is attached to the article storage device 10 so that an operator can climb the corridor 13. In order to allow the ladder 50 to be attached, the attached portion 18 is provided at a height corresponding to the height of the walkway 13 as shown in FIGS. 3 and 4. Specifically, in this example, the attached portion 18 is provided at the same height (similar height) as the walkway 13. The worker uses the ladder 50 to climb the stairs 13 to store in the space above the gallery 13 in the moving passage 21 (in this example, the space in which the upper three-stage storage portion 17 is formed). Maintenance work for the unit 17 and the like can be performed. In addition, the operator passes over the step platform 44 with the ladder 50 not attached to the article storage device 10 and between the first mast 31 and the second mast 32 than the walkway 13 in the moving passage 21. By entering the lower space (in this example, the space in which the lower three-stage storage portion 17 is formed), maintenance work for the storage portion 17 and the like can be performed in the space. As shown in FIG.4 and FIG.5, in this embodiment, the ladder 50 is from the attachment part 51 with respect to the article | item storage apparatus 10 so that it may have a part arrange | positioned between the 1st mast 31 and the 2nd mast 32. It is attached to the article storage device 10 so as to extend in the first direction L1 side and the lower side. In the present embodiment, in a state where the ladder 50 is attached to the article storage device 10, the end of the ladder 50 opposite to the attachment portion 51 is in the first direction L1 side relative to the first mast 31 and the second mast 32. (Slightly in the first direction L1 side in this example).

  The fall prevention body 60 is provided so as to partially surround the worker who goes up and down the ladder 50 from both sides in the width direction W and from the first direction L1 side. Here, “partially enclosing” means partially enclosing the operator when viewed from above, that is, the operator in the circumferential direction (circumferential direction based on the central axis of the body). It means to enclose partly. That is, the fall prevention body 60 does not have the part arrange | positioned at the 2nd direction L2 side with respect to the operator who goes up and down the ladder 50. FIG. The fall prevention body 60 is fixed to each of the first mast 31 and the second mast 32 so as to be supported by the first mast 31 and the second mast 32 on both sides in the width direction W. In the present embodiment, as shown in FIG. 3 to FIG. 5, the fall prevention body 60 is formed so as to extend along the vertical direction V and a plurality of frames 62 arranged side by side in the vertical direction V. A connecting portion 63 that connects the bodies 62 and a fixing portion 61 that is formed so as to extend along the extending direction L and fix the connecting portion 63 to the first mast 31 or the second mast 32 are provided. The fall prevention body 60 is fixed to each of the first mast 31 and the second mast 32 so as not to hinder the up-and-down movement of the first lifting platform 41 and the second lifting platform 42. In this example, the fixed part 61 is connected to the end part of each of the first mast 31 and the second mast 32 facing each other.

  In the present embodiment, the plurality of frame bodies 62 are configured in the same manner except for the arrangement position in the vertical direction V. Specifically, each of the frame bodies 62 is formed in an angular U shape that opens in the second direction L2 when viewed in the vertical direction V (see FIG. 5). That is, the frame body 62 extends in the extending direction L from the first portion extending along the width direction W and the one end portion of the first portion in the width direction W (the upper end portion in FIG. 5) toward the second direction L2. And a third portion extending along the extending direction L from the other end of the first portion in the width direction W (the lower end in FIG. 5) toward the second direction L2. I have. The first part is a part arranged on the rear side (back side) of the worker who goes up and down the ladder 50, and the second part is the worker who goes up and down the ladder 50 as viewed in the extending direction L. It is a part arrange | positioned at the left side, and a 3rd part is a part arrange | positioned at the right side of the operator who goes up and down the ladder 50 seeing in the extending direction L. FIG. And as the connection part 63, the 1st connection part 63a which connects each 1st part of several frame 62, the 2nd connection part 63b which connects each 2nd part of several frame 62, and several A third connecting portion 63 c that connects the third portions of the frame body 62 is provided. The second connecting portion 63b is fixed to the first mast 31 by the fixing portion 61 at a plurality of locations in the vertical direction V (two locations in this example), and the third connecting portion 63c is a plurality of locations in the vertical direction V (in this example, It is fixed to the second mast 32 by the fixing portion 61 at two places).

  In the present embodiment, as shown in FIGS. 3 to 5, the fall prevention body 60 is provided so as to protrude toward the first direction L <b> 1 with respect to the first mast 31 and the second mast 32. In this example, the fixing portion 61 is provided so as to extend from the first mast 31 or the second mast 32 to the first direction L1 side, and each of the plurality of frame bodies 62 has the first mast 31 and the second mast 32 as a whole. It arrange | positions rather than the 1st direction L1 side. In the present embodiment, at least a part (only a part in this example) of the fall prevention body 60 is disposed at a position higher than the walkway 13. That is, the upper end portion of the fall prevention body 60 (the uppermost frame body 62 in this example) is arranged at a position higher than the walkway 13, and in this example, it is arranged at a position higher than the upper end portion of the handrail 70. . Further, the lower end portion of the fall prevention body 60 (the lowermost frame body 62 in this example) is disposed at a position lower than the walkway 13. In the relationship with the ladder 50 attached to the article storage device 10, the upper end portion of the fall prevention body 60 is disposed at a position higher than the upper end portion of the ladder 50, and the lower end portion of the fall prevention body 60 is placed on the ladder 50. It is arrange | positioned in the position lower than the upper end part.

[Other Embodiments]
Other embodiments of the article storage facility according to the present invention will be described. Note that the configurations disclosed in the following embodiments can be applied in combination with the configurations disclosed in other embodiments as long as no contradiction arises.

(1) In the above embodiment, the configuration in which the fall prevention body 60 is provided so as to protrude toward the first direction L1 with respect to the first mast 31 and the second mast 32 has been described as an example. However, the embodiment of the present invention is not limited to this, and the configuration in which the fall prevention body 60 is provided so as to protrude toward the second direction L2 with respect to the first mast 31 and the second mast 32, or the fall prevention body 60. The first mast 31 and the second mast 32 may be provided so as to protrude in both the first direction L1 side and the second direction L2 side. In addition, a configuration in which the fall prevention body 60 is provided so as not to protrude in any of the first direction L1 side and the second direction L2 side with respect to the first mast 31 and the second mast 32, that is, the fall prevention body 60 has the first A configuration having only a portion arranged between the first mast 31 and the second mast 32 is also possible.

(2) In the above embodiment, the first mast 31 is closer to the central portion 21a side of the moving passage 21 in the width direction W than the first lift table 41 and The second mast 32 is disposed at the overlapping position, and the second mast 32 is closer to the central portion 21a side of the moving passage 21 in the width direction W than the second lift table 42, and the second lift table 42 is seen in the width direction W. The configuration arranged at the overlapping position has been described as an example. However, the embodiment of the present invention is not limited to this. For example, the configuration in which the first mast 31 is disposed at a position that does not overlap the first lifting platform 41 when viewed in the width direction W, that is, the first mast 31 is disposed at a position different from the first lifting platform 41 in the width direction W. It is also possible to adopt a configuration. In this case, with respect to the arrangement area in the width direction W, at least a part of the arrangement area of the first mast 31 may overlap with the arrangement area of the first lifting platform 41. Similarly, the second mast 32 is arranged at a position that does not overlap the second lifting platform 42 when viewed in the width direction W, that is, the second mast 32 is at a position different from the second lifting platform 42 in the width direction W. It is also possible to adopt a configuration in which they are arranged. In this case, regarding the arrangement area in the width direction W, at least a part of the arrangement area of the second mast 32 may overlap with the arrangement area of the second lifting platform 42.

(3) In the above embodiment, the first mast 31 and the second mast 32 are arranged at the same position in the extending direction L, and the ladder 50 is interposed between the first mast 31 and the second mast 32. The structure attached to the article storage device 10 so as to extend from the attachment portion 51 to the article storage device 10 to the first direction L1 side and the lower side so as to have a portion to be disposed has been described as an example. However, the embodiment of the present invention is not limited to this, and is configured to be attached to the article storage device 10 so that the ladder 50 does not have a portion disposed between the first mast 31 and the second mast 32. You can also For example, the configuration in which the first mast 31 and the second mast 32 are arranged at different positions in the extending direction L, and the inclination angle with respect to the vertical direction V in the direction in which the ladder 50 extends from the mounting portion 51 are from the example of the above embodiment. Or a configuration in which the first mast 31 and the second mast 32 are arranged closer to the first direction L1 than the example of the above-described embodiment. In this case, the ladder 50 attached to the article storage device 10 can be configured not to have a portion disposed between the first mast 31 and the second mast 32.

(4) In the above embodiment, a configuration in which a part of the fall prevention body 60 is disposed at a position higher than the walkway 13 has been described as an example. However, the embodiment of the present invention is not limited to this, and the configuration in which the whole fall prevention body 60 is arranged at a position higher than the walkway 13 or the whole fall prevention body 60 is arranged at a position lower than the walkway 13. It is also possible to adopt a configuration.

(5) In the above-described embodiment, the configuration in which the frame body 62 is formed in an angular U shape (cornered U shape) that opens toward the second direction L2 when viewed in the vertical direction V has been described as an example. . However, the embodiment of the present invention is not limited to this, and the shape of the frame body 62 when viewed in the vertical direction V is a rounded U-shape (a U-shape without corners) that opens to the second direction L2 side. Or it is good also as the round V shape (V shape without a corner | angular shape) etc. which open to the 2nd direction L2 side. Further, in the above embodiment, the fall prevention body 60 includes a plurality of frame bodies 62 provided side by side in the vertical direction V, that is, the fall prevention body 60 moves the worker up and down the ladder 50 in the vertical direction. A configuration partially enclosing in V has been described as an example. However, the embodiment of the present invention is not limited to this, and the fall prevention body 60 may be configured to continuously surround the worker who ascends and descends the ladder 50 in the vertical direction V. In this case, the fall prevention body 60 is configured using, for example, a plate-like member.

(6) In the above embodiment, the configuration in which the plurality of frame bodies 62 included in the fall prevention body 60 are the same as each other except for the arrangement position in the vertical direction V has been described as an example. However, the embodiment of the present invention is not limited to this, and the plurality of frame bodies 62 may have different configurations in addition to the arrangement position in the vertical direction V. For example, with respect to the arrangement position of the end portion on the first direction L1 side in the frame body 62 (the first portion extending in the width direction W in the example of the above embodiment), the lowermost frame body 62 is the uppermost frame body 62. It can be set as the structure arrange | positioned rather than the 1st direction L1 side. In this case, with respect to the arrangement position of the end portion on the first direction L1 side of each of the frame bodies 62 arranged between the uppermost frame body 62 and the lowermost frame body 62, the other nearest the upper side It can be set as the structure arrange | positioned in the 1st direction L1 side rather than the same position as the frame 62, or the said frame 62.

(7) In the above-described embodiment, the configuration in which the ladder 50 is detachably attached to the article storage device 10 from the first direction L1 side has been described as an example. However, the embodiment of the present invention is not limited to this, and the ladder 50 may be fixedly attached to the article storage device 10. In this case, the ladder 50 may be fixed to the article storage device 10 in an inclined posture as shown in FIG. 3, or the ladder 50 may be fixed to the article storage device 10 in a posture along the vertical direction V. In the case of the latter configuration, the ladder 50 may be fixed to the article storage device 10 so as to be swingable around a swing axis parallel to the vertical direction V. In this case, when the ladder 50 is not used so that the worker can enter the space below the corridor 13 in the moving passage 21 from between the first mast 31 and the second mast 32, the ladder 50 is used. Is rotated about 90 degrees around the swing axis from the direction in use (the direction in which the horizontal rails constituting the ladder 50 are along the width direction W), and the ladder 50 is oriented in the direction along the extending direction L. It can be set as the structure arrange | positioned.

(8) In the above-described embodiment, the configuration in which the article storage device 10 includes the walkway 13 has been described as an example. However, the embodiment of the present invention is not limited to this, and the article storage device 10 may be configured not to include a walkway. For example, for an operator who can move up and down in the movement path 21 between a retreat height which is a height above the movement space of each article transport body 20 and a work height which is a height in the movement space. A scaffold may be provided in place of the walkway. In this case, the ladder 50 is attached to the article storage device 10 so that the worker can climb to the worker scaffold located at the work height, and at least a part of the fall prevention body 60 is located at the work height. It can be set as the structure arrange | positioned in a position higher than a person's scaffold. In the above-described embodiment, the article storage device 10 has been described as an example of a configuration including the single walkway 13, but the article storage device 10 includes a plurality of walkways 13 at different positions in the vertical direction V. You can also. In this case, for example, the upper end portion of the fall prevention body 60 is disposed at a position higher than the highest walkway 13, and the lower end portion of the fall prevention body 60 is located at a position lower than the lowest walkway 13 or the walkway 13. It can be set as the structure arrange | positioned in the position between the second lowest walkway 13.

(9) Regarding other configurations as well, it should be understood that the embodiments disclosed herein are illustrative in all respects and that the scope of the present invention is not limited thereby. Those skilled in the art will readily understand that modifications can be made as appropriate without departing from the spirit of the present invention. Accordingly, other embodiments modified without departing from the spirit of the present invention are naturally included in the scope of the present invention.

1: Article storage facility 2: Article 10: Article storage device 11: First article storage shelf (article storage shelf)
12: Second article storage shelf (article storage shelf)
13: Walkway 20: Article transport body 21: Movement path 21a: Central part 30: Article transfer device 31: First mast 32: Second mast 41: First lifting platform 42: Second lifting platform 50: Ladder 51: Installation Part 60: Fall prevention body 70: Handrail H: Horizontal direction L: Extension direction L1: First direction P: Article transfer position V: Vertical direction W: Width direction

Claims (4)

An article storage device comprising a pair of article storage shelves arranged opposite to each other in the horizontal direction across the movement path of the article transporter, and a first that is one side in the extending direction of the movement path with respect to the article storage apparatus An article transfer device that is arranged side by side on the direction side and transfers an article to and from the article storage device at a plurality of article transfer positions set in the vertical direction,
The article transfer device is supported by a first mast erected along a vertical direction, and is supported by the first mast so as to be movable up and down, and at a height corresponding to each of the plurality of article transfer positions. A first lifting platform for transferring articles to and from the storage device is provided on one side of the central portion of the moving passage in the width direction of the moving passage and is erected along the vertical direction. A mast, and a second lifting platform that is supported by the second mast so as to be movable up and down and that transfers articles to and from the article storage device at a height corresponding to each of the plurality of article transfer positions, An article storage facility provided on the other side of the central portion of the moving passage in the width direction,
For an operator detachably or fixedly attached to the article storage device from the first direction side so as to have a portion arranged between the pair of article storage shelves as viewed in the extending direction. The ladder of
A fall prevention body that partially surrounds the worker ascending and descending the ladder from both sides in the width direction and the first direction side, and
The article storage facility fixed to each of the first mast and the second mast so that the fall prevention body is supported on both sides in the width direction by the first mast and the second mast. The first mast is disposed at a position that is closer to the center of the moving passage in the width direction than the first lifting platform and overlaps the first lifting platform as seen in the width direction,
The second mast is located on the side of the central portion of the moving path in the width direction than the second lifting platform, and is disposed at a position overlapping the second lifting platform as seen in the width direction,
The article storage facility according to claim 1, wherein the fall prevention body is provided so as to protrude toward the first direction with respect to the first mast and the second mast. The first mast and the second mast are arranged at the same position in the extending direction,
The article storage device extends from the attachment portion to the article storage device to the first direction side and the lower side so that the ladder has a portion disposed between the first mast and the second mast. The article storage facility according to claim 2, wherein the article storage facility is attached to the container. The article storage device includes a walkway between the pair of article storage shelves for an operator to move along the extending direction.
The ladder is attached to the article storage device so that an operator can climb the corridor,
The article storage facility according to any one of claims 1 to 3, wherein at least a part of the fall prevention body is disposed at a position higher than the walkway.

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