Goods shelf of automatic warehouse

Abstract

A shelf (10) of an automated warehouse (1) is provided with a first horizontal beam member (13), a second horizontal beam member (15), and a shelf member (20). The first horizontal beam member (13) has a pair of beam holes (130). The pair of beam holes (130) penetrate through the rear side surface (13D) so as to form protruding portions that protrude in directions facing each other. The second horizontal beam member (15) has a fitted portion fitted to one end of the shelf member (20), and an insertion hole (15Af) penetrating the second upper surface in the thickness direction. The shelf member (20) has: a support surface (21); a first protruding piece (22); an insertion surface (23) having a fitting hole (23A) into which the protrusion (133) is fitted when the insertion surface (23) is inserted into the beam hole (130); a rear fitting part (29); and a claw part (29D) that is inserted into the insertion hole (15Af) in a state in which the second horizontal beam member (15) is fitted to the rear fitting part (29).

Description

Technical Field

[0001] One aspect of the present invention relates to a rack for an automated warehouse, etc., which is used for the automated warehouse and holds goods. Background Art

[0002] Shelves used to hold goods in automated warehouses and the like are known. For example, Patent Document 1 discloses an automated warehouse shelf comprising: four upright pillars disposed at the four corners of a rectangle; two beam members disposed parallel to and in front of the four pillars in the left-right direction; and shelf members mounted on the two beam members. In the automated warehouse shelf disclosed in Patent Document 1, one of the beam members is engaged with one end of the shelf member in the front-to-back direction, thereby securing the shelves to each other. This facilitates installation compared to fastening using bolts or other fastening members.

[0003] Prior art literature

[0004] Patent Literature

[0005] Patent Document 1: Japanese Patent Application Laid-Open No. 2021-46271 Summary of the Invention

[0006] Problems to be solved by the invention

[0007] However, in the aforementioned conventional automated warehouse racks, although it is easy to fix one end of the shelf member in the front-to-back direction to one of the beam members, if a fastening member such as a bolt is used as a method for fixing the other end of the shelf member in the front-to-back direction to the other of the beam members, the effect is halved. In addition, when the shelf member is fitted and fixed to two beam members, it is necessary to be able to suppress movement in any one of the three mutually orthogonal axial directions.

[0008] Therefore, an object of one aspect of the present invention is to provide a rack for an automated warehouse having a fitted fixed structure and capable of suppressing movement of a shelf member relative to a beam member in any one of three mutually orthogonal axial directions.

[0009] Means for solving problems

[0010] 14. The automated warehouse of claim 13, wherein the shelves extend in a first direction and are capable of arranging a plurality of goods in the first direction, and are capable of transferring goods in a horizontal direction from one side of a second direction perpendicular to the first direction, and are provided with: a first horizontal beam member extending in the first direction; a second horizontal beam member extending in the first direction and being arranged opposite to the first horizontal beam member in the second direction, and being arranged on the other side of the second direction relative to the first horizontal beam member; and a shelf member configured in a manner erected on the first horizontal beam member and the second horizontal beam member, and holding goods, the first horizontal beam member comprising: a first upper surface inclined downward from one side toward the other side; a rear side surface extending downward from the other side end of the first upper surface and perpendicular to the second direction; and a pair of beam holes penetrating in the thickness direction across the first upper surface and the rear side surface. The cam is threaded with a threaded hole, and the cam has a pair of holes therethrough, the pair of holes being inserted through the rear side surface so as to form protrusions protruding in directions opposite to each other, the second horizontal beam member comprising: a fitted portion fitted by one side end portion of the shelf member; and an insertion hole passing through a second upper surface perpendicular to the vertical direction in the thickness direction, the shelf member being formed by bending a plate-like member and comprising: a supporting surface for supporting goods from below; a first protruding piece being provided so as to protrude to one side from one side end portion of the supporting surface and contacting the first upper surface of the first horizontal beam member; a pair of insertion surfaces being formed as a pair of beam holes that can be respectively inserted into the first horizontal beam member, and respectively forming fitting holes for the protrusions to fit in when the pair of beam holes are respectively inserted; a rear fitting portion fitting the fitted portion of the second horizontal beam member; and a claw portion being inserted into the insertion hole in a state where the fitted portion of the second horizontal beam member is fitted by the rear fitting portion.

[0011] In the shelves of the automatic warehouse of this structure, the shelf components are fixed to the first horizontal beam component and the second horizontal beam component by the following first to fourth fixing structures. The first fixing structure is a structure in which the shelf component is fixed relative to the first horizontal beam component in the first direction by inserting (engaging) the insertion surface of the shelf component into the beam hole of the first horizontal beam component. The second fixing structure is a structure in which the shelf component is fixed relative to the first horizontal beam component in the second direction and the vertical direction (a direction orthogonal to both the first direction and the second direction) by engaging the engaging hole formed on the insertion surface with the protrusion formed on the first horizontal beam component. The third fixing structure is a structure in which the shelf component is fixed relative to the second horizontal beam component in the vertical direction by engaging the engaging portion of the shelf component with the engaged portion of the second horizontal beam component. The fourth fixing structure is a structure in which the shelf component is fixed relative to the second horizontal beam component in the first and second directions by inserting (engaging) the claw formed on the shelf component into the insertion hole formed on the second horizontal beam component. In an automated warehouse rack according to one aspect of the present invention, the positioning functions of the four fixing structures, namely the first fixing structure, the fourth fixing structure, and the like, are combined to prevent the shelf member from moving relative to the first horizontal beam member and the second horizontal beam member in any one of the first direction, the second direction, and the vertical direction. That is, despite the interlocking fixing structure, the shelf member can be prevented from moving relative to the beam member in any one of the three mutually orthogonal axial directions without using fastening members such as bolts.

[0012] In an automated warehouse rack according to one aspect of the present invention, the first protruding piece may include a first surface inclined upward from one end portion of the support surface toward one side, and a second surface inclined downward from one end portion of the first surface toward one side, wherein the second surface contacts the first upper surface of the first horizontal beam member. In this structure, it is possible to prevent goods held on the shelf member from flying out to one side.

[0013] In an automated warehouse shelf according to one aspect of the present invention, the second surface may contact the first upper surface such that the inclination of the second surface intersects the inclination of the first upper surface. In other words, when the inclination of the second surface and the inclination of the first upper surface are parallel, the second surface and the first upper surface do not contact each other. This structure effectively prevents the shelf member from moving in the second direction during the transfer of goods.

[0014] In an automated warehouse shelf according to one aspect of the present invention, the rear engaging portion may include a first engaging surface extending in the second direction; a second engaging surface extending vertically downward from the other end of the first engaging surface; and a third engaging surface extending from the vertically downward end of the second engaging surface toward one side in the second direction, the third engaging surface being inclined downward from the other side toward the one side. In this structure, the elastic force of the metal flat plate member is utilized to suppress movement of the shelf member in the first direction, and installation of the shelf member relative to the second horizontal beam member is facilitated.

[0015] In the shelves of the automatic warehouse of one aspect of the present invention, a plurality of shelf components may be arranged at intervals in the first direction, and the shelf components may include: a supporting surface, wherein a first supporting surface and a second supporting surface are provided in a pair in a manner opposite to each other in the first direction; and a guide surface formed between the first supporting surface and the second supporting surface in the first direction, protruding upward from the first supporting surface and the second supporting surface, and extending along the second direction, wherein the guide surface is formed by bending a plate-like component between the first supporting surface and the second supporting surface in the first direction. The shelf components of this structure support one end portion of the goods in the first direction from below by the first supporting surface of the shelf components on one side adjacent to each other, and support the other end portion of the goods in the first direction from below by the second supporting surface of the shelf components on the other side adjacent to each other, thereby holding the goods. In addition, in the shelf components of this structure, the guide surface can prevent the goods from shifting in the first direction.

[0016] In an automatic warehouse rack according to one aspect of the present invention, the shelf member may include a second protruding piece protruding from the other end of the second direction of the guide surface toward one side and the other side of the first direction. In this structure, the goods can be prevented from flying out from the other side of the second direction.

[0017] Effects of the Invention

[0018] According to one aspect of the present invention, despite the fitting and fixing structure, the shelf member can be prevented from moving relative to the beam member in any one of the three axial directions orthogonal to each other. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a perspective view showing a portion of a shelf used in an automated warehouse according to one embodiment.

[0020] Figure 2 This is a side view of a portion of the automated warehouse according to one embodiment as viewed from the X direction.

[0021] Figure 3 Yes Figure 1 A three-dimensional view of the shelf components included in the shelf.

[0022] Figure 4 Observed from the X direction Figure 1 Cross-sectional view of the shelf.

[0023] Figure 5 (A) is a perspective view of the connection portion between the first horizontal beam member and the shelf member as viewed from obliquely above. Figure 5 (B) is a perspective view of the connection portion between the first horizontal beam member and the shelf member as viewed from obliquely below.

[0024] Figure 6 This is a developed view of a beam hole portion formed in the first horizontal beam member developed in a planar manner.

[0025] Figure 7 This is a perspective view of the connection portion between the second horizontal beam member and the shelf member as viewed from obliquely above.

[0026] Figure 8 (A) and Figure 8 (B) is a diagram illustrating a procedure for attaching the shelf member to the second horizontal beam member.

[0027] Figure 9 (A) and Figure 9 (B) is a diagram illustrating a procedure for attaching the shelf member to the first horizontal beam member. DETAILED DESCRIPTION

[0028] Below, a shelf 10 (a shelf for an automated warehouse) according to one embodiment is described with reference to the accompanying drawings. In the description of the accompanying drawings, identical elements are denoted by identical reference numerals and duplicate descriptions are omitted. In this embodiment, for ease of description, the extending direction of the shelf 10 is defined as the X direction (first direction), the direction perpendicular to the X direction in the horizontal plane is defined as the Y direction (second direction), and the direction perpendicular to both the X and Y directions is defined as the Z direction (vertical direction).

[0029] like Figure 1 and Figure 2 As shown, the automatic warehouse 1 is a device that can automatically move goods T from the outside of the automatic warehouse 1 to the shelf 10 using a first conveying device 50 that can convey goods T in a horizontal direction and a second conveying device (not shown) that can convey goods T in a vertical direction, and automatically move goods T held on the shelf 10 to the outside of the automatic warehouse 1.

[0030] The automated warehouse 1 includes a pair of shelves 10, 10, a first conveyor device 50, and a second conveyor device (not shown). The pair of shelves 10, 10 can each hold a plurality of goods T arranged in the X direction, a horizontal direction, and can also hold a plurality of goods T arranged in the Z direction, a vertical direction. Hereinafter, the arrangement in the Z direction will sometimes be referred to as a "layer." The details of the structure of the pair of shelves 10, 10 will be described later.

[0031] A first conveyor device 50 is disposed for each level along the X direction between a pair of shelves 10, 10 disposed opposite each other in the Y direction. The first conveyor device 50 is not particularly limited as long as it can convey held goods T and transfer goods T between the shelves 10. In this embodiment, the first conveyor device 50 includes a pair of rails 51, 51 and a travel carriage 53 that travels on the pair of rails 51, 51.

[0032] A pair of rails 51, 51 are arranged so as to be opposed to each other in the Y direction and extend in the X direction. In addition, the pair of rails 51, 51 is composed of the first horizontal beam member 13 of the shelf 10, which will be described in detail later. The traveling trolley 53 has: a pair of traveling rollers 55, 55, which roll on the first guide surface 13A of the pair of first horizontal beam members 13, 13 (a pair of rails 51, 51); a pair of side rollers 57, 57, which roll on the second guide surface 13B of the pair of first horizontal beam members 13, 13 (a pair of rails 51, 51); and a transfer device 59, which transfers the goods T by sliding from the traveling trolley 53 to the shelf 10, or from the shelf 10 to the traveling trolley 53. The pair of traveling rollers 55, 55 is driven by a driving unit such as a motor not shown. The transfer device 59 is composed of, for example, an arm not shown that can push the goods T to the side of the shelf 10 or pull the goods T in from the side of the shelf 10.

[0033] The second conveyor device is disposed along the Z direction at the ends of each of the pair of racks 10, 10 in the X direction. The second conveyor device is not particularly limited as long as it can convey the held goods T and transfer the goods T between each level of the racks 10 and a conveyor device (not shown) outside the automated warehouse 1. The second conveyor device is, for example, a vertical conveyor that conveys the goods T in the Z direction.

[0034] The shelf 10 includes column members 11 , first horizontal beam members 13 , second horizontal beam members 15 , and shelf members 20 .

[0035] The column members 11 are columnar members installed upright on the floor or foundation of the building where the automated warehouse 1 is located. The column members 11 extend in the Z direction and are arranged at predetermined intervals in the X direction. The column members 11 are composed of a first column member 11A arranged on one side in the Y direction and a second column member 11B arranged on the other side in the Y direction.

[0036] The first horizontal beam members 13 are beam members extending in the X-direction along the arrangement direction of the first column members 11A. A plurality of first horizontal beam members 13 are arranged in the Z-direction. The first horizontal beam members 13 are provided corresponding to each of the aforementioned layers. The first horizontal beam members 13 are secured to the first column members 11A via brackets 11Aa provided on the first column members 11A.

[0037] The second horizontal beam member 15 is a beam member extending in the X-direction along the arrangement direction of the second column members 11B. The second horizontal beam member 15 is arranged so as to oppose the first horizontal beam member 13 in the Y-direction. Furthermore, a plurality of second horizontal beam members 15 are arranged in the Z-direction. The second horizontal beam members 15 are provided corresponding to each of the aforementioned layers. The second horizontal beam members 15 are secured to the second column members 11B via brackets (not shown) provided on the second column members 11B.

[0038] Hereinafter, when the shelf 10 is viewed in a manner in which the second horizontal beam component 15 appears to be closer to the inside than the first horizontal beam component 13, the front view is defined. In the front view, one side in the Y direction (i.e., the side on which the first horizontal beam component 13 is configured) is sometimes referred to as the front side, and the other side in the Y direction (i.e., the side on which the second horizontal beam component 15 is configured) is sometimes referred to as the rear side.

[0039] The first horizontal beam member 13 will be described in more detail. Figures 2 to 4 As shown, the first horizontal beam member 13 includes a first guide surface 13A, a second guide surface 13B, an upper surface (first upper surface) 13C, a rear side surface 13D, a first connecting surface 13E, a second connecting surface 13F, a third connecting surface 13G, and a lower surface 13H. The first horizontal beam member 13 is formed by bending a plate-shaped member made of a material such as steel, aluminum, or stainless steel by press working or the like, thereby forming the first guide surface 13A, the second guide surface 13B, the upper surface 13C, the rear side surface 13D, the first connecting surface 13E, the second connecting surface 13F, the third connecting surface 13G, and the lower surface 13H.

[0040] As described above, the first horizontal beam member 13, together with the first horizontal beam member 13 of the shelf 10 disposed opposite to each other in the Y direction, forms a pair of rails 51, 51 of the first conveyor device 50. The first guide surface 13A forms a surface on which the travel rollers 55 of the first conveyor device 50 can roll. The first guide surface 13A is a surface perpendicular to the Z direction and parallel to the horizontal plane. The second guide surface 13B forms a surface on which the side rollers 57 of the first conveyor device 50 can roll. The second guide surface 13B is a surface perpendicular to the Y direction and parallel to the vertical plane.

[0041] The upper surface 13C carries one end (front end) of the shelf component 20 in the Y direction. The upper surface 13C is inclined downward from the front side (one side) in the Y direction toward the rear side (the other side). The rear side surface 13D is a surface extending downward from the rear side end of the upper surface 13C and is a surface orthogonal to the Y direction. The first connecting surface 13E and the second connecting surface 13F are surfaces that connect the first guide surface 13A and the second guide surface 13B. The third connecting surface 13G is a surface that connects the second guide surface 13B and the upper surface 13C. On the first horizontal beam component 13, a beam hole 130 is formed from a part of the upper surface 13C to a part of the rear side surface 13D. The beam hole 130 is a portion for inserting the insertion surface 23 of the shelf component 20 described in detail later. The beam hole 130 will be described in detail later.

[0042] Next, the second horizontal beam member 15 will be described in more detail. Figures 3 to 7 As shown, the second horizontal beam member 15 is composed of a first C-shaped steel 15A and a second C-shaped steel 15B. The first C-shaped steel 15A has an upper edge (engaged portion) 15Aa, an upper flange (engaged portion, second upper surface) 15Ab, a web 15Ac, a lower flange 15Ad, and a lower edge 15Ae. The first C-shaped steel 15A is formed by bending a plate-like member made of steel, aluminum, stainless steel, or other materials through a press process or the like, thereby forming the upper edge 15Aa, upper flange 15Ab, web 15Ac, lower flange 15Ad, and lower edge 15Ae.

[0043] The upper flange 15Ab is a portion that becomes the upper surface (second upper surface) of the second horizontal beam member 15. An insertion hole 15Af is formed in the upper flange 15Ab, and a claw portion 29D formed on the shelf member 20, which will be described in detail later, can be inserted into the insertion hole 15Af. The upper edge 15Aa is a portion that hangs down downward from the rear end of the upper flange 15Ab. The lower flange 15Ad is a portion that becomes the lower surface of the second horizontal beam member 15. The web 15Ac is a portion that connects the upper flange 15Ab and the lower flange 15Ad and extends in the Z direction. The lower edge 15Ae is a portion that is erected upward from the rear end of the lower flange 15Ad.

[0044] The second C-shaped steel 15B includes an upper edge 15Ba, an upper flange 15Bb, a web 15Bc, a lower flange 15Bd, and a lower edge 15Be. The second C-shaped steel 15B is formed by bending a plate-like member made of a material such as steel, aluminum, or stainless steel by press working, thereby forming the upper edge 15Ba, upper flange 15Bb, web 15Bc, lower flange 15Bd, and lower edge 15Be.

[0045] The upper flange 15Bb forms the upper surface of the second horizontal beam member 15. The upper edge 15Ba extends downward from the front end of the upper flange 15Bb. The lower flange 15Bd forms the lower surface of the second horizontal beam member 15. The web 15Bc connects the upper flange 15Bb and the lower flange 15Bd and extends in the Z direction. The lower edge 15Be extends upward from the front end of the lower flange 15Bd.

[0046] The first C-shaped steel 15A and the second C-shaped steel 15B are arranged in a back-to-back position (back-to-back position) with the web 15Ac and the web 15Bc contacting each other. The first C-shaped steel 15A and the second C-shaped steel 15B are connected to each other by bolts, rivets, welding, etc. The first C-shaped steel 15A has a portion that is engaged with the rear side engagement portion 29 of the shelf member 20, which will be described in detail later.

[0047] The shelf members 20 are used to hold (load) cargo T. The shelf members 20 are mounted on the first horizontal beam member 13 and the second horizontal beam member 15. The shelf members 20 are arranged at predetermined intervals in the X direction. The cargo T is loaded so as to span between one shelf member 20 and the other shelf member 20 adjacent to each other in the X direction.

[0048] The shelf member 20 includes a support surface 21, a first protruding piece 22, an insertion surface 23, a guide surface 25, a second protruding piece 26, and a rear fitting portion 29. The shelf member 20 is formed by bending a plate-shaped member formed of a material such as steel, aluminum, or stainless steel by a press process or the like, thereby forming the support surface 21, the first protruding piece 22, the insertion surface 23, the second protruding piece 26, the guide surface 25, and the rear fitting portion 29.

[0049] The support surface 21 is a portion that supports the cargo T from below. That is, the support surface 21 is a surface on which the cargo T is placed. The support surface 21 includes a first support surface 21A and a second support surface 21B that form a pair, sandwiching the guide surface 25 in the X direction (see FIG. Figure 5(A) in FIG. 1 ). That is, it includes a first support surface 21A disposed on one side (the left side) of the guide surface 25 in the X direction, and a second support surface 21B disposed on the other side (the right side) of the guide surface 25 in the X direction. The pair of support surfaces 21, 21 (the first support surface 21A and the second support surface 21B) are each a plane perpendicular to the Z direction and is a flat surface formed along the guide surface 25 extending in the Y direction.

[0050] The first protruding piece 22 is a portion that protrudes forward from the front end of the support surface 21 in the Y direction. The first protruding piece 22 has a first surface 22A that slopes upward from the front end of the support surface 21 toward the front side, and a second surface 22B that slopes downward from the front end of the first surface 22A toward the front side. The inclination of the second surface 22B is different from the inclination of the upper surface 13C. In other words, the direction in which the second surface 22B extends in the Y direction intersects with the direction in which the upper surface 13C extends in the Y direction, and is not parallel to each other.

[0051] The insertion surface 23 is a surface that extends downward from the ends of each of the pair of support surfaces 21, 21 in the X direction and is a surface that is perpendicular to the X direction. The pair of insertion surfaces 23, 23 are respectively inserted into the beam hole 130 of the first horizontal beam member 13, which will be described in detail later. A fitting hole 23A is formed on each of the pair of insertion surfaces 23, 23. When the insertion surface 23 is inserted into the beam hole 130, the protrusion 133 formed in the beam hole 130 is inserted into the fitting hole 23A. The fitting hole 23A is a portion that penetrates in the thickness direction. The fitting hole 23A is arranged at a position below the center portion of the insertion surface 23 in the Z direction. The opening shape of the fitting hole 23A is not particularly limited and can be, for example, a rectangular shape.

[0052] The pair of insertion surfaces 23, 23 are configured to expand so as to gradually separate from each other as they move downward from the pair of support surfaces 21, 21, in a state (parts state) before the shelf member 20 is attached to the first horizontal beam member 13. The pair of insertion surfaces 23, 23 are configured to deform so as to narrow the distance between the lower ends of the pair of insertion surfaces 23, 23 when a force is applied to bring the pair of insertion surfaces 23, 23 closer to each other.

[0053] The guide surface 25 is a component that restricts movement of the goods T placed on the shelf member 20 in the X direction. It also serves to guide the goods T in the Y direction while restricting movement of the goods T in the X direction when the goods T are transferred to the shelf member 20. The guide surface 25 includes a pair of side surfaces 25A, 25A, which contact portions of the side surfaces of the goods T, and an upper surface 25B connecting the pair of side surfaces 25A, 25A. Each of the pair of side surfaces 25A, 25A further includes a front guide surface 25C. The pair of front guide surfaces 25C, 25C guide the goods T from the upper surface 13C of the first horizontal beam member 13 toward the support surface 21.

[0054] The pair of second protruding pieces 26, 26 have surfaces perpendicular to the Y direction and protrude from the rear end of the guide surface 25 in the Y direction to both one side (right side) and the other side (left side) in the X direction. The pair of second protruding pieces 26, 26 prevent the cargo T from flying out of the support surface 21 to the rear side in the Y direction.

[0055] The rear fitting portion 29 is the portion that fits the shelf member 20 into the second horizontal beam member 15. The first C-shaped steel 15A (the fitted portion) of the second horizontal beam member 15 is fitted into the rear fitting portion 29, thereby securing the shelf member 20 vertically relative to the second horizontal beam member 15 (a third fixing structure). The rear fitting portion 29 is formed at the rear end portion in the Y direction. The rear fitting portion 29 includes a first fitting surface 29A, a second fitting surface 29B, a third fitting surface 29C, and a claw portion 29D. The first fitting surface 29A is the portion that is parallel to the upper flange 15Ab of the first C-shaped steel 15A when the shelf member 20 is mounted on the second horizontal beam member 15. The second fitting surface 29B is the portion that is parallel to the upper edge 15Aa of the first C-shaped steel 15A when the shelf member 20 is mounted on the second horizontal beam member 15. The third fitting surface 29C is the portion that extends from the lower end portion of the second fitting surface 29B toward the front. The third fitting surface 29C is inclined downward from the lower end of the second fitting surface 29B toward the front side. In other words, the third fitting surface 29C is formed so as to be farther away from the first fitting surface 29A toward the front side.

[0056] The claw portion 29D is a portion that protrudes downward from the first fitting surface 29A and is formed so as to be insertable into the insertion hole 15Af formed in the upper flange 15Ab of the first C-shaped steel 15A of the second horizontal beam member 15 when the shelf member 20 is mounted on the second horizontal beam member 15. When the claw portion 29D is inserted into the insertion hole 15Af, the rear portion of the shelf member 20 is fixed in the X and Y directions (fourth fixing structure).

[0057] Next, the beam hole 130 formed on the first horizontal beam member 13 for connecting the shelf member 20 to the first horizontal beam member 13 will be described. Figure 6 As shown, the beam holes 130 are paired in the X direction. The pair of beam holes 130, 130 are formed so that the pair of insertion surfaces 23, 23 of the shelf member 20 can be inserted therein.

[0058] The pair of beam holes 130, 130 are portions extending from a portion of the upper surface 13C to a portion of the rear side surface 13D in the thickness direction. When viewing the first horizontal beam member 13 from above in the Z direction, the pair of beam holes 130, 130 are each open upward from a portion of the upper surface 13C to a portion of the rear side surface 13D. The pair of beam holes 130, 130 (hereinafter referred to as beam holes 130) each have a lower end portion 131 forming an inner edge of the beam hole 130, a first side edge portion 132, a protruding portion 133, a second side edge portion 134, an upper end portion 135, a third side edge portion 136, a fourth side edge portion 137, and a fifth side edge portion 138.

[0059] The lower end portion 131 is formed on the rear side surface 13D and extends in the X-direction from the lower end of the inner edge forming the beam hole 130. The first side edge portion 132 is formed on the rear side surface 13D and extends in the Z-direction. The protrusion 133 is formed on the rear side surface 13D and protrudes from the first side edge portion 132 toward the inside of the beam hole 130 at a position upwardly spaced from the lower end portion 131. The most protruding portion 133A of the protrusion 133 is positioned below the center of the beam hole 130 in the Z-direction. The protrusion 133 has a lower edge 133B that rises as it approaches the most protruding portion 133A, and an upper edge 133C that descends as it approaches the most protruding portion 133A.

[0060] The second side edge portion 134 is formed on the upper surface 13C and is a portion extending in the Y direction at the upper end of the inner edge forming the beam hole 130. The upper end portion 135 is formed on the upper surface 13C and is a portion extending in the X direction at the upper end of the inner edge forming the beam hole 130. The third side edge portion 136 is formed on the upper surface 13C and is a portion extending in the Y direction at the upper end of the inner edge forming the beam hole 130. The third side edge portion 136 is opposite to the second side edge portion 134 in the X direction. The fourth side edge portion 137 is a portion formed on the rear side surface 13D and is opposite to the upper end edge 133C in the X direction. The fifth side edge portion 138 is a portion formed on the rear side surface 13D and is extended in the Z direction. The fifth side edge portion 138 connects the fourth side edge portion 137 to the lower end portion 131.

[0061] The pair of beam holes 130, 130 are arranged such that the protrusions 133 of the respective beam holes 130 protrude inward from the first side edge 132 arranged on the outside. In other words, the pair of beam holes 130, 130 are arranged in line symmetry with each other.

[0062] Next, the state in which the insertion surface 23 of the shelf member 20 is inserted into the beam hole 130, that is, the state in which the front end portion (front engaging portion 27) of the shelf member 20 is engaged with the first horizontal beam member 13, will be described. When the insertion surface 23 is inserted into the beam hole 130, the shelf member 20 is fixed relative to the first horizontal beam member 13 in the X direction (a first fixing structure). Furthermore, when the insertion surface 23 is inserted into the beam hole 130, the engaging hole 23A is inserted with the protrusion 133, and the engaging hole 23A engages with the protrusion 133, thereby fixing the shelf member 20 relative to the first horizontal beam member 13 in the Y and Z directions (a second fixing structure). Furthermore, the lower end portion 131 of the beam hole 130 is in contact with the lower edge 23C of the insertion surface 23. Thus, the position of the shelf member 20 relative to the first horizontal beam member 13 in the Z direction is determined, and the shelf member 20 is stably held by the first horizontal beam member 13. Furthermore, the lower end of the fitting hole 23A contacts the lower edge 133B of the protruding portion 133. Thus, two upper and lower points are determined, and movement of the insertion surface 23 with respect to the Z direction is suppressed.

[0063] Furthermore, a portion of the insertion surface 23 above the fitting hole 23A abuts against the third side edge 136 of the beam hole 130, located opposite the first side edge 132. Furthermore, a portion of the insertion surface 23 below the fitting hole 23A abuts against the first side edge 132 below the protrusion 133. Two surfaces of a single insertion surface 23 in the X direction abut against the inner edge of the beam hole 130, thereby suppressing movement of the insertion surface 23 in the X direction. More specifically, the distance between the first side edge 132 and the third side edge 136 in the X direction corresponds to the thickness of the insertion surface 23 of the shelf member 20. The outer surface of the insertion surface 23 below the fitting hole 23A is in close contact with the first side edge 132 extending in the vertical direction, while the inner surface of the insertion surface 23 above the fitting hole 23A is in close contact with the third side edge 136. This state also applies to the insertion surface 23 located on the opposite side in the X direction. Thus, the movement of the shelf member 20 relative to the first horizontal beam member 13 in the X direction is suppressed.

[0064] Next, the order of installing the shelf member 20 on the first horizontal beam member 13 and the second horizontal beam member 15 will be described. First, the order of installing the rear end portion of the shelf member 20 on the second horizontal beam member 15 will be described. Figure 8 As shown in (A) in FIG, the rear engaging portion 29 formed at the rear end portion of the shelf member 20 is hooked on the second horizontal beam member 15. More specifically, the shelf member 20 is tilted so that the rear end portion of the shelf member 20 is downward, and the third engaging surface 29C of the rear engaging portion 29 is moved downward toward the lower edge 15Ae of the first C-shaped steel 15A.

[0065] Next, while the rear engaging portion 29 is hooked onto the second horizontal beam member 15, the shelf member 20 is pulled forward in the Y direction and tilted to a horizontal position. At this time, by tilting the shelf member 20 to a horizontal position while the rear end portion 23B of the insertion surface 23 contacts the upper edge 15Ba of the second C-shaped steel 15B, the shelf member 20 can be roughly positioned relative to the second horizontal beam member 15 in the Y direction.

[0066] Moreover, if Figure 8 As shown in (B) in FIG. 1 , when the shelf member 20 is tilted to a horizontal position, the claw portion 29D of the rear fitting portion 29 is inserted into the insertion hole 15Af formed in the upper flange 15Ab of the first C-shaped steel 15A of the second horizontal beam member 15. Thus, the rear end portion (rear fitting portion 29) of the shelf member 20 is positioned in the Z direction by the first fitting surface 29A, the second fitting surface 29B, and the third fitting surface 29C and the first C-shaped steel 15A, and is positioned in the X and Y directions by the claw portion 29D and the insertion hole 15Af.

[0067] Next, the procedure for mounting the front end portion of the shelf member 20 on the first horizontal beam member 13 will be described. As described above, when the shelf member 20 is tilted to a horizontal state, as shown in FIG. Figure 9 As shown in (A) in FIG. 1 , the front end of the insertion surface 23 of the shelf member 20 is inserted into the beam hole 130 formed in the first horizontal beam member 13. In this state, a downward force is applied to the front end of the shelf member 20, causing the lower edge 23C of the insertion surface 23 to contact the upper edge 133C of the protrusion 133 of the beam hole 130. Then, as the insertion surface 23 is guided downward by the downward force, it deforms in the X direction toward the paired insertion surface 23 (inward).

[0068] Furthermore, when a downward force is applied to the front end of the shelf member 20, the lower edge of the fitting hole 23A of the insertion surface 23 passes over the most protruding portion 133A of the protrusion 133 and contacts the first side edge 132. At this time, a part of the protrusion 133 is inserted into the fitting hole 23A of the insertion surface 23, forming a Figure 9 The state shown in (B) in FIG. Furthermore, the action of the insertion surface 23 described above is also the same for the other insertion surface 23 of the pair. Thus, the front end portion (front fitting portion 27) of the shelf member 20 is positioned relative to the X direction by the first side edge portion 132 of the beam hole 130 and the insertion surface 23, and is positioned relative to the Y and Z directions by the protrusion 133 of the beam hole 130 and the fitting hole 23A of the insertion surface 23. Thus, the shelf member 20 can be mounted on the first horizontal beam member 13 and the second horizontal beam member 15.

[0069] In addition, the order for removing the shelf member 20 from the first horizontal beam member 13 and the second horizontal beam member 15 is carried out in the reverse order of the above-mentioned installation order. First, by applying force to the pair of insertion surfaces 23, 23 of the shelf member 20 in a direction approaching each other (inward), the protrusion 133 is removed from the state of being inserted into the fitting hole 23A, and the front end of the shelf member 20 is lifted upward. As a result, the fitting between the front end (front fitting portion 27) of the shelf member 20 and the first horizontal beam member 13 is released. Next, while the shelf member 20 is tilted so that the rear end of the shelf member 20 is downward, the shelf member 20 is moved backward. As a result, the fitting between the rear end (rear fitting portion 29) of the shelf member 20 and the second horizontal beam member 15 is released. In this way, the shelf member 20 can be removed from the first horizontal beam member 13 and the second horizontal beam member 15.

[0070] The effects of the shelf 10 of the above embodiment will be described. In the shelf 10 of the above embodiment, the shelf member 20 is fixed to the first horizontal beam member 13 and the second horizontal beam member 15 by the above-mentioned first to fourth fixing structures. In addition, the first fixing structure is a structure in which the shelf member 20 is fixed relative to the first horizontal beam member 13 in the X direction by inserting (engaging) the insertion surface 23 of the shelf member 20 into the beam hole 130 of the first horizontal beam member 13. The second fixing structure is a structure in which the shelf member 20 is fixed relative to the first horizontal beam member 13 in the Y direction and the Z direction by engaging the beam hole 130 formed on the insertion surface 23 with the protrusion 133 formed on the first horizontal beam member 13. The third fixing structure is a structure in which the shelf member 20 is fixed relative to the second horizontal beam member 15 in the Z direction by engaging a part of the first C-shaped steel 15A of the second horizontal beam member 15, i.e., the engaged portion, with the rear side engaging portion 29 of the shelf member 20. The fourth fixing structure is a structure for fixing the shelf member 20 to the second horizontal beam member 15 in the Y and X directions by inserting (fitting) the claw portion 29D formed on the shelf member 20 into the insertion hole 15Af formed on the second horizontal beam member 15 .

[0071] In the shelf 10 of the above embodiment, the positioning functions of the four fixing structures are combined with each other, thereby preventing the shelf member 20 from moving in any one of the X, Y, and Z directions relative to the first horizontal beam member 13 and the second horizontal beam member 15. In other words, although it is a fitting fixing structure, it is possible to prevent the shelf member 20 from moving in any one of the three mutually orthogonal axial directions relative to the first horizontal beam member 13 and the second horizontal beam member 15 without using fastening members such as bolts.

[0072] In the rack 10 of the above embodiment, the first protruding piece 22 includes a first surface 22A that is inclined upward from one end portion of the support surface 21 toward one side, and a second surface 22B that is inclined downward from one end portion of the first surface 22A toward one side, and the second surface 22B is in contact with the upper surface 13C of the first horizontal beam member 13. This can prevent the cargo T held on the shelf member 20 from flying forward.

[0073] In the above-described embodiment of the shelf 10, the second surface 22B and the upper surface 13C are in contact with each other so that the inclination direction of the second surface 22B and the inclination direction of the upper surface 13C intersect with each other. In other words, in the above-described embodiment, when the inclination direction of the second surface 22B and the inclination direction of the upper surface 13C are parallel to each other, the second surface 22B and the upper surface 13C do not contact each other. This effectively prevents the shelf member 20 from moving forward in the Y direction when transferring goods T.

[0074] In the shelf 10 of the above embodiment, the third engaging surface 29C of the rear engaging portion 29 is inclined downward from the rear side toward the front side. Thus, the elastic force of the flat plate member formed of metal is utilized to suppress the movement of the shelf member 20 in the Z direction, and the installation of the shelf member 20 relative to the second horizontal beam member 15 becomes easy.

[0075] The shelf 10 of the above-described embodiment includes a plurality of shelf members 20 arranged at intervals in the X-direction. The shelf members 20 include support surfaces 21, each comprising a first support surface 21A and a second support surface 21B, which are paired in the X-direction; and guide surfaces formed between the first and second support surfaces 21A, 21B in the X-direction, projecting upward from the first and second support surfaces 21A, 21B, and extending in the Y-direction. The shelf members 20 of this embodiment support the right side of the cargo T in the X-direction from below via the first support surface 21A of one adjacent shelf member 20, and support the left side of the cargo T in the X-direction from below via the second support surface 21B of the other adjacent shelf member 20, thereby holding the cargo T. Furthermore, the guide surfaces 25 of the shelf members 20 of this embodiment prevent the cargo T from shifting in the X-direction.

[0076] In the rack 10 of the embodiment described above, the shelf member 20 includes the second protruding pieces 26 protruding in both directions of the X direction from the rear end of the guide surface 25 in the Y direction. This prevents the articles T from flying out from the rear side in the Y direction.

[0077] Although one embodiment has been described above, one aspect of the present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of one aspect of the present invention.

[0078] The conveying device provided in the automated warehouse 1 and conveying the cargo T may be any type of device. For example, a conveying device such as a stacker crane may be provided so as to be able to travel in the X direction and to have a transfer device that can move in the Z direction.

[0079] While the above-described embodiment and modifications illustrate an example in which the first horizontal beam member 13 also serves as the rail 51 for the traveling carriage 53, the first horizontal beam member 13 and the rail 51 may be provided separately. In this case, the rail 51 is provided along the first horizontal beam member 13 on the front side in the Y direction of the first horizontal beam member 13. Furthermore, when a transport device such as a stacker crane is provided as described above, the rail 51 is provided on the floor, etc., where the racks 10 are installed.

[0080] In the above embodiment and the above modification, an example of a second horizontal beam member having a structure of two arranged C-shaped steels is given for description. However, the second horizontal beam member may be composed of a single C-shaped steel or channel-shaped steel with different cross-sectional shapes.

[0081] The shelf member 20 of the above embodiment and the above modification has been described as having the guide surface 25 formed thereon. However, the guide surface 25 may be omitted and the shelf member 20 may be formed solely with the flat support surface 21. In this case, by forming the support surface 21 to a size capable of carrying one or more items T, one or more items T can be held on one shelf member 20.

[0082] The first protruding piece 22 of the shelf member 20 in the above embodiment and the above modification is described as being bent so that the center portion in the Y direction becomes convex. However, it may be formed in a straight line without being bent.

[0083] The third engaging surface 29C of the rear engaging portion 29 of the shelf member 20 in the above-described embodiment and the above-described modified example is described as being inclined downward from the rear side toward the front side in the Y direction, but it may also extend horizontally from the rear side toward the front side. That is, when the first engaging surface 29A, the second engaging surface 29B, and the third engaging surface 29C are viewed from the X direction, they may also be formed into a "コ" shape.

[0084] The technical subject matter of one aspect of the present invention can be described as follows. [1]

[0086] A shelf of an automated warehouse, extending along a first direction and capable of arranging a plurality of goods in the first direction, and capable of transferring the goods in a horizontal direction from one side in a second direction orthogonal to the first direction, comprising:

[0087] a first horizontal beam member extending along the first direction;

[0088] a second horizontal beam member extending in the first direction, disposed opposite to the first horizontal beam member in the second direction, and disposed on the other side of the first horizontal beam member in the second direction; and

[0089] The shelf member is arranged so as to be mounted on the first horizontal beam member and the second horizontal beam member and holds the goods.

[0090] The first horizontal beam member includes: a first upper surface inclined downward from the one side toward the other side; a rear side surface extending downward from an end portion of the other side of the first upper surface and perpendicular to the second direction; and a pair of beam holes penetrating in the thickness direction across the first upper surface and the rear side surface, the pair of beam holes penetrating the rear side surface in a manner of forming protrusions protruding in directions opposite to each other.

[0091] The second horizontal beam member has: a fitted portion, which is fitted by one end portion of the shelf member; and an insertion hole, which penetrates the second upper surface perpendicular to the vertical direction in the thickness direction.

[0092] The shelf member is formed by bending a plate-shaped member.

[0093] The shelf component has:

[0094] a supporting surface supporting the cargo from below;

[0095] a first protruding piece provided so as to protrude from the end portion of the one side of the support surface toward the one side and in contact with the first upper surface of the first horizontal beam member;

[0096] a pair of insertion surfaces formed to be respectively inserted into the pair of beam holes of the first horizontal beam member, and each formed with a fitting hole for the protrusion to fit into when the protrusion is respectively inserted into the pair of beam holes;

[0097] a rear engaging portion engaging with the engaged portion of the second horizontal beam member; and

[0098] The claw portion is inserted into the insertion hole in a state in which the engaged portion of the second horizontal beam member is engaged by the rear engaging portion. [2]

[0100] The shelf of the automatic warehouse according to [1], wherein

[0101] The first protruding piece has a first surface inclined upward from an end portion of one side of the support surface toward the one side, and a second surface inclined downward from an end portion of the one side of the first surface toward the one side.

[0102] The second surface is in contact with the first upper surface of the first horizontal beam member. [3]

[0104] The shelf of the automatic warehouse according to [2], wherein

[0105] The second surface is in contact with the first upper surface such that an inclination direction of the second surface intersects with an inclination direction of the first upper surface. [4]

[0107] The rack of the automatic warehouse according to any one of [1] to [3], wherein

[0108] The rear fitting portion includes: a first fitting surface extending along the second direction; a second fitting surface extending from the other end of the first fitting surface toward the vertically downward direction; and a third fitting surface extending from the vertically downward end of the second fitting surface toward the one side of the second direction.

[0109] The third fitting surface is inclined downward from the other side toward the one side. [5]

[0111] The rack of the automatic warehouse according to any one of [1] to [3], wherein

[0112] A plurality of shelf members are arranged at intervals in the first direction.

[0113] The shelf member comprises: the supporting surfaces, the first supporting surface and the second supporting surface being arranged in a pair in a manner that the first supporting surface and the second supporting surface are opposed to each other in the first direction; and a guide surface formed between the first supporting surface and the second supporting surface in the first direction, protruding upward from the first supporting surface and the second supporting surface and extending along the second direction,

[0114] The guide surface is formed by bending a plate-shaped member between the first support surface and the second support surface in the first direction. [6]

[0116] The shelf of the automatic warehouse according to [5], wherein

[0117] The shelf member includes a second protruding piece that protrudes from an end portion of the guide surface on the other side in the second direction toward two directions in the first direction.

[0118] Explanation of symbols

[0119] 1: Automatic warehouse; 10: Shelf (shelf of automatic warehouse); 11: Column component; 13: First horizontal beam component; 13C: Upper surface (first upper surface); 13D: Rear side; 15: Second horizontal beam component; 15A: First C-shaped steel; 15B: Second C-shaped steel; 20: Shelf component; 21: Support surface; 21A: First support surface; 21B: Second support surface; 22: First protrusion; 22A: First surface; 22B: Second surface; 23: Insertion surface; 23A: Fitting hole; 25: Guide surface; 26: Second protrusion; 27: Front fitting portion; 29: Rear fitting portion; 29D: Claw; 50: First conveying device; 51: Track; 53: Traveling trolley; 130: Beam hole; 133: Protrusion.

Claims

1. A shelf of an automated warehouse, extending in a first direction and capable of arranging a plurality of goods in the first direction, and capable of transferring the goods horizontally from one side in a second direction orthogonal to the first direction, comprising: a first horizontal beam member extending along the first direction; a second horizontal beam member extending along the first direction, arranged opposite to the first horizontal beam member in the second direction, and arranged on the other side of the first horizontal beam member in the second direction; as well as The shelf member is arranged so as to be mounted on the first horizontal beam member and the second horizontal beam member and holds the goods. The first horizontal beam member includes: a first upper surface inclined downward from the one side toward the other side; a rear side surface extending downward from an end portion of the other side of the first upper surface and perpendicular to the second direction; and a pair of beam holes penetrating in the thickness direction across the first upper surface and the rear side surface, the pair of beam holes penetrating the rear side surface in a manner of forming protrusions protruding in directions opposite to each other. The second horizontal beam member has: a fitted portion, which is fitted by one end portion of the shelf member; and an insertion hole, which penetrates the second upper surface perpendicular to the vertical direction in the thickness direction. The shelf member is formed by bending a plate-shaped member. The shelf component has: a supporting surface supporting the cargo from below; a first protruding piece provided so as to protrude from the end portion of the one side of the support surface toward the one side and in contact with the first upper surface of the first horizontal beam member; a pair of insertion surfaces formed to be respectively inserted into the pair of beam holes of the first horizontal beam member, and each formed with a fitting hole for the protrusion to fit into when the protrusion is respectively inserted into the pair of beam holes; a rear engaging portion engaging with the engaged portion of the second horizontal beam member; as well as The claw portion is inserted into the insertion hole in a state in which the engaged portion of the second horizontal beam member is engaged by the rear engaging portion.

2. The shelf of the automatic warehouse according to claim 1, wherein: The first protruding piece has a first surface inclined upward from an end portion of one side of the support surface toward the one side, and a second surface inclined downward from an end portion of the one side of the first surface toward the one side. The second surface is in contact with the first upper surface of the first horizontal beam member.

3. The shelf of the automatic warehouse according to claim 2, wherein: The second surface is in contact with the first upper surface such that an inclination direction of the second surface intersects with an inclination direction of the first upper surface.

4. The shelf of the automatic warehouse according to any one of claims 1 to 3, wherein: The rear fitting portion includes: a first fitting surface extending along the second direction; a second fitting surface extending from the other end of the first fitting surface toward the vertically downward direction; and a third fitting surface extending from the vertically downward end of the second fitting surface toward the one side of the second direction. The third fitting surface is inclined downward from the other side toward the one side.

5. The shelf of the automatic warehouse according to any one of claims 1 to 3, wherein: A plurality of shelf members are arranged at intervals in the first direction. The shelf member comprises: the supporting surfaces, the first supporting surface and the second supporting surface being arranged in a pair in a manner that the first supporting surface and the second supporting surface are opposed to each other in the first direction; and a guide surface formed between the first supporting surface and the second supporting surface in the first direction, protruding upward from the first supporting surface and the second supporting surface and extending along the second direction, The guide surface is formed by bending a plate-shaped member between the first support surface and the second support surface in the first direction.

6. The shelf of the automatic warehouse according to claim 5, wherein: The shelf member includes a second protruding piece that protrudes from an end portion of the guide surface on the other side in the second direction toward one side and the other side in the first direction.

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