Movable storage device

Abstract

To prevent pallets loaded on a movable platform or cargo loaded on the pallets from sliding down.SOLUTION: A slip stop member (1) comprises a first layer (2) and a second layer (3). The first layer (2) has a first through hole (4). The second layer (3) has a second through hole (5) coaxial with the first through hole (4), and is provided on the first layer (2). A diameter of the second through hole (5) is larger than a diameter of the first through hole (4).SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] This embodiment is a non-slip member that prevents the load from sliding off the movable loading platform. of It relates to a movable storage device. [Background technology]

[0002] One example of a storage device is a movable storage device that includes a plurality of movable loading platforms of different heights that are slidably supported on inclined rails via wheels. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2004-269104 [Patent Document 2] Japanese Patent Application Laid-Open No. 2014-156306 Summary of the Invention [Problem to be solved by the invention]

[0004] In a movable storage device with inclined rails, when the movable loading platform moves from the back to the front, it is necessary to prevent the pallet loaded on the movable loading platform or the load loaded on the pallet from sliding down to the front side of the movable storage device due to inertial force.

[0005] The present embodiment has been made in consideration of the above-mentioned circumstances, and provides an anti-slip member for preventing a pallet loaded on a movable loading platform or a load loaded on the pallet from slipping off. Equipped with The object is to provide a mobile storage device. [Means for solving the problem]

[0006] According to this embodiment The movable storage device comprises a pair of inclined rails, a plurality of movable cargo platforms of different heights each movably supported on the inclined rails via wheels, and an anti-slip member fixed to the top surface of at least one of the movable cargo platforms using bolts and nuts.The non-slip member includes a first layer and a second layer. The first layer has a first through hole. The second layer has a second through hole coaxial with the first through hole and is provided on the first layer. The diameter of the second through hole is larger than the diameter of the first through hole. The edges of the top surface of the second layer are chamfered. The first layer is disk-shaped. The first through-hole is concentric with the first layer. The second layer is disk-shaped. The second through-hole is concentric with the second layer. The first layer is metal. The second layer is ether-based polyurethane. [Effects of the Invention]

[0007] According to this embodiment, in a movable storage device equipped with inclined rails, it is possible to prevent a pallet loaded on a movable loading platform or a load loaded on the pallet from slipping off. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 2 is a top perspective view showing an example of an anti-slip member according to the first embodiment. [Figure 2] FIG. 2 is a bottom perspective view showing an example of an anti-slip member according to the first embodiment. [Figure 3] FIG. 2 is a side view showing an example of an anti-slip member according to the first embodiment. [Figure 4] FIG. 2 is a top view showing an example of an anti-slip member according to the first embodiment. [Figure 5] 1 is a vertical cross-sectional view showing an example of an anti-slip member according to a first embodiment. [Figure 6] FIG. 2 is a bottom view showing an example of an anti-slip member according to the first embodiment. [Figure 7] 1 is a vertical cross-sectional view showing an example of a state in which the anti-slip member according to the first embodiment is installed on a movable platform using bolts and nuts. [Figure 8] 3 is a top perspective view showing an example of a state in which a bolt and a nut are attached to the anti-slip member according to the first embodiment. FIG. [Figure 9] 3 is a bottom perspective view showing an example of a state in which a bolt and a nut are attached to the anti-slip member according to the first embodiment. FIG. [Figure 10] 1 is a perspective view showing an example of a movable storage device equipped with an anti-slip member according to a first embodiment. [Figure 11]FIG. 2 is a perspective view showing an example of a state in which a plurality of movable loading platforms of the movable storage device according to the first embodiment are deployed in the depth direction. [Figure 12] 3 is a side view illustrating an example of a pallet and a loaded state of goods in the movable storage device according to the first embodiment. FIG. [Figure 13] 1 is a perspective view showing an example of a state in which an anti-slip member according to a first embodiment is installed on a movable loading platform. [Figure 14] FIG. 2 is a perspective view showing an example of the relationship between the anti-slip member, the movable platform, and the pallet according to the first embodiment. [Figure 15] FIG. 10 is a front view showing an example of a movable storage device of a first comparative example. [Figure 16] FIG. 10 is a front view showing an example of a movable storage device of a second comparative example. [Figure 17] FIG. 11 is a front view showing an example of a movable storage device of a third comparative example. [Figure 18] FIG. 11 is a side view showing an example of a state in which a pallet is caught between the stopper and the rear movable loading platform in the movable storage device of the third comparative example. [Figure 19] FIG. 11 is a side view showing an example of a state in which a pallet is caught on a stopper in the movable storage device of the third comparative example. [Figure 20] FIG. 2 is a front view showing an example of a movable storage device according to the first embodiment. [Figure 21] FIG. 10 is a vertical cross-sectional view showing an example of an anti-slip member according to a second embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0009] The present embodiment will be described below with reference to the drawings, in which the same parts are designated by the same reference numerals.

[0010] (First embodiment) FIG. 1 is a top perspective view showing an example of an anti-slip member 1 according to a first embodiment. FIG. 2 is a bottom perspective view showing an example of the anti-slip member 1 according to the first embodiment. FIG. 3 is a side view showing an example of the anti-slip member 1 according to the first embodiment.

[0011] The anti-slip members 1 are installed on the upper surfaces of multiple movable loading platforms provided in the mobile storage device. Pallets and the loads loaded on the pallets are placed on the anti-slip members 1. The relationship between the anti-slip members 1 and the mobile storage device will be explained later using Figures 10 to 13.

[0012] In the first embodiment, the anti-slip member 1 is disk-shaped, but may be other shapes such as a triangular shape or a rectangular shape.

[0013] The non-slip member 1 comprises a first layer 2 and a second layer 3 .

[0014] The first layer 2 is, for example, disk-shaped and has a vertical through-hole 4 in the center. The first layer 2 is made of a metal such as iron. The first layer 2 is made of a material harder than the second layer 3.

[0015] The second layer 3 is, for example, disk-shaped and has a vertical through-hole 5 in the center. The second layer 3 is placed on the top surface of the first layer 2. The through-hole 5 in the second layer 3 and the through-hole 4 in the first layer 2 are coaxial. The diameter of the through-hole 5 in the second layer 3 is larger than the diameter of the through-hole 4 in the first layer 2. The second layer 3 is formed of a material softer than the first layer 2, such as resin. More specifically, the second layer 3 may be made of ether-based polyurethane. The angle of the second layer 3 is preferably, for example, about 90 degrees. The coefficient of friction of the second layer 3 is greater than the coefficient of friction of the top surface of the movable platform.

[0016] The corner formed by the top surface and side surface of the second layer 3 (i.e., the edge portion of the top surface of the second layer 3) is chamfered and has a slope 6 that is inclined relative to the top surface and side surface of the second layer 3.

[0017] FIG. 4 is a top view showing an example of the anti-slip member 1 according to the first embodiment.

[0018] The circumference of the circular upper surface of the second layer 3 is chamfered. A through-hole 5 is formed in the second layer 3 so as to be concentric with the circular upper surface of the second layer 3.

[0019] The through hole 5 in the second layer 3 has a larger diameter than the through hole 4 in the first layer 2. Therefore, in the top view of Figure 4, the through hole 4 in the first layer 2 and the surrounding area of ​​the through hole 4 appear behind the through hole 5 in the second layer 3.

[0020] Fig. 5 is a vertical cross-sectional view showing an example of the anti-slip member 1 according to the first embodiment, showing the cross-section AA in Fig. 4. The size shown in Fig. 5 is an example and can be changed as appropriate.

[0021] The diameter of the upper and lower surfaces of the first layer 2 may be, for example, 40 mm. The diameter of the through-hole 4 in the first layer 2 may be, for example, 8.5 mm. The thickness of the first layer 2 may be, for example, 1.6 mm.

[0022] The diameter of the lower surface of the second layer 3 may be, for example, 40 mm. The diameter of the through-hole 5 in the second layer 3 may be, for example, 15 mm. The thickness of the second layer 3 may be, for example, 4 mm.

[0023] The chamfer offset (D×D) for the second layer 3 may be, for example, D=2 mm. In other words, the corners of the circumferential portion of the upper surface of the second layer 3 are chamfered by 2 mm in the horizontal direction and 2 mm in the vertical direction.

[0024] FIG. 6 is a bottom view showing an example of the anti-slip member 1 according to the first embodiment.

[0025] The circular lower surface of the first layer 2 is formed with a through-hole 4 concentric with the lower surface of the first layer 2 .

[0026] FIG. 7 is a vertical cross-sectional view showing an example of a state in which the anti-slip member 1 according to the first embodiment is attached to a movable platform 9 using a bolt 7 and a nut 8. As shown in FIG.

[0027] The movable loading platform 9 has a through-hole 10 that penetrates from the upper surface of the movable loading platform 9 to the inner surface facing the upper surface.

[0028] The bolt 7 has a head 7a and a threaded portion 7b. The thickness (height) of the head 7a of the bolt 7 is smaller than the thickness of the second layer 3. The head 7a of the bolt 7 is housed in the through-hole 5 of the second layer 2 and contacts the upper surface of the first layer 2.

[0029] The screw portion 7b passes through the through-hole 4 of the first layer 2 and the through-hole 10 of the movable loading platform 9, and the tip of the screw portion 7b protrudes downward from the inner surface of the movable loading platform 9.

[0030] The nut 8 is attached to a threaded portion 7b that protrudes downward from the inner surface of the movable platform 9.

[0031] The first layer 2 and the movable loading platform 9 are fixed together by the head 7a, the threaded portion 7b and the nut 8 of the bolt 7.

[0032] FIG. 8 is a top perspective view showing an example of a state in which a bolt 7 and a nut 8 are attached to the anti-slip member 1 according to the first embodiment.

[0033] FIG. 9 is a bottom perspective view showing an example of a state in which a bolt 7 and a nut 8 are attached to the anti-slip member 1 according to the first embodiment.

[0034] 8 and 9 show a state in which the movable platform 9 has been removed from FIG.

[0035] FIG. 10 is a perspective view showing an example of a movable storage device 11 equipped with the anti-slip member 1 according to the first embodiment.

[0036] Figure 11 is a perspective view showing an example of the movable loading platforms C1 to C3 of the movable storage device 11 according to the first embodiment deployed in the depth direction. The movable loading platforms C1 to C3 correspond to the movable loading platform 9 in Figure 7 above. The movable loading platforms C1 to C3 of the movable storage device 11 deploy in the depth direction with pallets and loads loaded on these movable loading platforms C1 to C3, but for clarity, the pallets and loads are omitted from Figure 11.

[0037] The movable storage device 11 includes a pair of left and right rails 12a, 12b, a plurality of movable loading platforms C1 to C3, a horizontal platform 13, and a front member 14. In the first embodiment, an example in which there are three movable loading platforms C1 to C3 will be described, but the number of movable loading platforms may be one or more.

[0038] The rails 12a and 12b are installed parallel to each other. The rails 12a and 12b are inclined, and one end (front side or front face side) of the rails 12a and 12b is positioned lower than the other end (rear side or back face side) of the rails 12a and 12b. The one end of the rails 12a and 12b may be referred to as the low end, and the other end of the rails 12a and 12b may be referred to as the high end.

[0039] In the first embodiment, each of the movable carriers C1 to C3 is a frame formed of four metal rectangular tubes having a rectangular cross section.

[0040] The movable loading platform C1 has a first loading section for loading a load in a horizontal state, a plurality of first wheels, and a plurality of first legs. One end (upper end) of each first leg is connected to the first loading section (frame portion), and the other end (lower end) of each first leg has a first wheel. The movable loading platform C1 is located at the lowest level among the movable loading platforms C1 to C3.

[0041] The movable loading platform C2 has a second loading section, a plurality of second wheels, and a plurality of second legs. One end of each second leg is connected to the second loading section, and the other end of each second leg has a second wheel. The movable loading platform C2 is located in the middle of the movable loading platforms C1 to C3.

[0042] The movable loading platform C3 includes a third loading section, a plurality of third wheels, and a plurality of third legs. One end of each third leg is connected to the third loading section, and the other end of each third leg includes a third wheel. The movable loading platform C3 is located at the top of the movable loading platforms C1 to C3.

[0043] When the movable carriers C1 to C3 are at their lowest positions, the positions and lengths of the first to third legs are different. As a result, the heights of the first to third loading sections of the multiple movable carriers C1 to C3 are different. More specifically, the top surface of the first loading section of the movable carrier C1 is lower than the bottom surface of the second loading section of the movable carrier C2. The top surface of the second loading section of the movable carrier C2 is lower than the bottom surface of the third loading section of the movable carrier C3.

[0044] As a result, as shown in FIG. 10, the movable platforms C1 to C3 can be stacked one on top of the other at their lowest positions.

[0045] Each of the multiple movable loading platforms C1 to C3 can move on rails 2a and 2b via first to third wheels, respectively. Each of the multiple movable loading platforms C1 to C3 can load pallets and loads onto the upper surfaces of the first to third horizontal loading sections.

[0046] The horizontal platform 13 is installed between the lower end sides of the pair of rails 12a, 12b. The upper surface U0 of the horizontal platform 13 is horizontal. In the first embodiment, at least a portion of the upper surface U0 is higher than the inclined upper surfaces of the lower end sides of the rails 12a, 12b. The upper surface U0 is located lower than the lower surface of the movable platform C1 at its lowest position.

[0047] In the first embodiment, the horizontal base 13 may include two rail-like members that are disposed inside and along the rails 12a and 12b, extend horizontally in the front-rear direction, and are substantially parallel to the rails 12a and 12b. In other words, the rail-like members that constitute the horizontal base 13 are disposed facing the inner side surfaces of the rails 12a and 12b, respectively.

[0048] In this way, by forming the horizontal base 13 with two rail-like members, the horizontal base 13 can be easily installed.

[0049] The last load is placed on the upper surface U0 of the horizontal platform 13.

[0050] The front member 14 is installed on the front of the mobile storage device 11. The front member 14 is a rack structural member that can be attached to and detached from two pillars installed on the front of the mobile storage device 11, and its installation height can be freely adjusted. The front member 14 has a frame shape, is installed almost horizontally, and is a member that receives the front ends of the inclined rails 12a and 12b. In the first embodiment, the upper end of the front member 14 protrudes above the upper surface U0 of the horizontal platform 13. The front member 14 prevents pallets and loads loaded on the horizontal platform 13 from falling forward from the front.

[0051] FIG. 12 is a side view illustrating a loading state of pallets P0 to P3 and loads B0 to B3 in the movable storage device 11 according to the first embodiment.

[0052] As explained above using Figure 10, when no load is loaded on the movable loading platforms C1 to C3 (empty state), the movable loading platforms C1 to C3 are at the lowest position of the rails 12a, 12b and are positioned above the horizontal platform 13, stacked vertically.

[0053] In the loading operation, first, with the movable loading platforms C1 to C3 at the lowest positions of the rails 12a and 12b, a load B3 is placed on the top surface of the uppermost movable loading platform C3 by a forklift or the like. In the first embodiment, the load B3 (palletized load B3) loaded on the pallet P3 is loaded onto the movable loading platform C3.

[0054] Next, pallet P2 (or load B2 loaded on pallet P2) pushes the topmost movable loading platform C3 (and pallet P3 and load B3 loaded on movable loading platform C3) backward (upward on the slope of rails 12a, 12b), and load B2 loaded on pallet P2 is loaded onto the next movable loading platform C2.

[0055] Next, the pallet P1 (or the load B1 loaded on the pallet P1) moves while pushing the movable loading platform C2 (and the pallet P2 and load B2 loaded on the movable loading platform C2) to the back, and the load B1 loaded on the pallet P1 is loaded onto the next movable loading platform C1.

[0056] Finally, the pallet P0 (or the load B0 loaded on the pallet P0) moves while pushing the movable loading platform C1 (and the pallet P1 and load B1 loaded on the movable loading platform C1) to the back, and the load B0 loaded on the pallet P0 is loaded onto the horizontal platform 13.

[0057] The unloading process is carried out in the reverse order of the loading process.

[0058] Specifically, in the carrying-out operation, first, the pallet P0 on the horizontal platform 13 and the load B0 loaded on the pallet P0 are carried out by a forklift or the like.

[0059] Then, due to gravity, the movable platform C1, pallet P1, and load B1 descend (slide) along the rails 12a and 12b to the level platform 13 at its lowest position.

[0060] Next, the pallet P1 on the movable loading platform C1 and the load B1 loaded on the pallet P1 are carried out by a forklift or the like.

[0061] Then, due to gravity, the movable loading platform C2, pallet P2, and load B2 descend along rails 12a and 12b to above the movable loading platform C1, which is at its lowest position.

[0062] Next, the pallet P2 on the movable loading platform C2 and the load B2 loaded on the pallet P2 are carried out by a forklift or the like.

[0063] Then, due to gravity, movable platform C3, pallet P3 and load B3 descend along rails 12a and 12b to above movable platform C2, which is at its lowest position.

[0064] Finally, the pallet P3 on the movable loading platform C3 and the load B3 loaded on the pallet P3 are carried out by a forklift or the like.

[0065] In the first embodiment, anti-slip members 1 are provided on the upper surface of each of the movable loading platforms C1 to C3, and pallets P1 to P3 are loaded on these anti-slip members 1. Therefore, in the first embodiment, the pallets P1 to P3 can be prevented from slipping more effectively than if the pallets P1 to P3 were loaded directly on the upper surfaces of the movable loading platforms C1 to C3, and when the movable loading platforms C1 to C3 move from the back to the front and stop, the pallets P1 to P3 and the loads B1 to B3 can be prevented from sliding forward due to inertial force. Furthermore, if the pallets P1 to P3 do not slide at all, when the movable loading platforms C1 to C3 move from the back to the front and stop, there is a possibility that the loads B1 to B3 loaded on the pallets P1 to P3 will slide off or tip over. However, the anti-slip member 1 of the first embodiment can reduce the inertial force to the extent that the pallets P1 to P3 and loads B1 to B3 do not slide down or the loads B1 to B3 do not tip over when the movable loading platforms C1 to C3 move from the back to the front and stop.

[0066] 13 is a perspective view showing an example of a state in which the anti-slip member 1 according to the first embodiment is installed on the movable platform C3. The same applies to the states in which the anti-slip member 1 is installed on the other movable platforms C1 and C2.

[0067] An anti-slip member 1 is installed on the upper surface in front of the movable loading platform C3 and fixed with a bolt 7 and a nut 8.

[0068] FIG. 14 is a perspective view showing an example of the relationship between the anti-slip member 1, the movable platform C3, and the pallet P3 according to the first embodiment.

[0069] The anti-slip member 1 is installed on the upper surface of the intersecting frame members that make up the movable loading platform C3. The anti-slip member 1 is fixed to the upper surface of the frame members with bolts 7 and nuts 8. A pallet P3 is placed on the anti-slip member 1.

[0070] In the first embodiment described above, the thickness of the anti-slip member 1 can be reduced. Furthermore, the anti-slip member 1 can have sufficient strength even when it is thin, and can be prevented from peeling off from the movable loading platforms C1 to C3. For example, the anti-slip member 1 can be made thinner and stronger than when rubber is simply attached to the movable loading platforms C1 to C3.

[0071] The anti-slip member 1 does not completely stop the movement of the pallets P1-P3 and the loads B1-B3 on the pallets P1-P3. The pallets P1-P3 on the anti-slip member 1 slide within the range allowed by the impact when the movable loading platforms C1-C3 descend from the back to the front along the inclined rails 12a, 12b and stop. This prevents the loads from shifting due to inertial force.

[0072] The anti-slip member 1 according to the first embodiment is formed by pouring resin into a special mold. By employing this method of formation, it is possible to increase the adhesive strength between the first layer 2, which is made of metal, and the second layer 3, which is made of resin. Furthermore, because no machining is required to manufacture the second layer 3, the anti-slip member 1 can be manufactured simply and at low cost.

[0073] In the anti-slip member 1 of the first embodiment, the second layer 3 is made of a urethane material with excellent wear resistance, and furthermore, since it is attached to the movable loading platforms C1 to C3 with bolts 7 and nuts 8, it can be easily replaced if it becomes worn.

[0074] Furthermore, in the first embodiment, the anti-slip members 1 are attached to the front side of the movable loading platforms C1 to C3, so that the attachment and detachment operations can be easily performed.

[0075] Therefore, in the first embodiment, the maintenance effort can be reduced.

[0076] In the first embodiment, by installing an anti-slip member 1 on the upper surface of the corner where the square tubes of the movable loading platforms C1 to C3 intersect, it is possible to prevent the square tubes from bending when pallets P1 to P3 and loads B1 to B3 are loaded on the movable loading platforms C1 to C3.

[0077] The effects of the first embodiment will be described below in comparison with first to third comparative examples.

[0078] FIG. 15 is a front view showing an example of a movable storage device 15 of the first comparative example.

[0079] In the movable storage device 15 of this first comparative example, the movable loading platforms C1 to C3 are not provided with anti-slip members 1. If the movable loading platforms C1 to C3 are made of metal, the pallets P1 to P3 loaded on the movable loading platforms C1 to C3 are prone to slipping.

[0080] FIG. 16 is a front view showing an example of a movable storage device 16 of a second comparative example.

[0081] In the movable storage apparatus 16 of the second comparative example, a stopper SP extending vertically is provided on the front member 14 of the movable storage apparatus 15 of the first comparative example to prevent the pallets P1-P3 stacked on the movable loading platforms C1-C3 from sliding off. In the movable storage apparatus 16 of the second comparative example, a forklift cannot use the pallets P1-P3 to push the movable loading platforms C1-C3, and therefore cannot be used as a measure to prevent the pallets P1-P3 from falling.

[0082] FIG. 17 is a front view showing an example of a movable storage device 17 of the third comparative example.

[0083] In the movable storage device 17 of the third comparative example, stoppers SP1-SP3 extending vertically are provided on the front surface of each of the movable loading platforms C1-C3 to prevent the pallets P1-P3 from falling forward. The horizontal positions of the stoppers SP1-SP3 on the front surface of each of the multiple movable loading platforms C1-C3 are staggered when the movable loading platforms C1-C3 are stacked on top of each other.

[0084] In the movable storage device 17 of this third comparative example, as shown in Figure 18, the pallet P1 gets pinched between the stopper SP1 and the rear movable loading platform C2 due to line pressure from the rear movable loading platform C2, making it difficult to remove the pallet P1 from the movable loading platform C1.

[0085] Furthermore, in the movable storage device 17 of the third comparative example, as shown in FIG. 19, the pallet P1 may get caught on the stopper SP1.

[0086] In contrast, in the movable storage device 11 according to the first embodiment, as shown in FIG. 20, the anti-slip member 1 is installed on the upper surface of the front portion of the movable loading platforms C1 to C3, at the corner where the rectangular tubes of the movable loading platforms C1 to C3 intersect.

[0087] In the first embodiment, the problems of the first to third comparative examples can be solved.

[0088] Specifically, in the first embodiment, the anti-slip member 1 has a higher coefficient of friction than the metal movable loading platforms C1 to C3, and therefore can prevent the pallets P1 to P3 or the loads B1 to B3 on the pallets P1 to P3 from slipping off the movable loading platforms C1 to C3.

[0089] In the first embodiment, when the anti-slip member 1 is installed on the movable loading platforms C1 to C3, it does not interfere with the operation of pushing the movable loading platforms C1 to C3 with the pallets P1 to P3.

[0090] In the first embodiment, unlike the third comparative example, the pallets P1, P2 do not become pinched between the stoppers SP1, SP2 and the rear movable loading platforms C2, C3 due to line pressure from the rear movable loading platforms C2, C3, so the pallets P1, P2 and the loads B1, B2 can be easily removed from the movable loading platforms C1, C2.

[0091] In the first embodiment, the pallets P1 to P3 and the loads B1 to B3 are placed on the anti-slip member 1, so the pallets P1 to P3 do not get caught on the stoppers SP1 to SP3 as in the third comparative example.

[0092] In the first embodiment, the anti-slip members 1 may be installed on the upper surfaces of the rear portions of the movable loading platforms C1 to C3, at corners where the rectangular tubes of the movable loading platforms C1 to C3 intersect.

[0093] (Second embodiment)

[0094] In the second embodiment, a modified example of the anti-slip member 18 according to the first embodiment will be described.

[0095] FIG. 21 is a vertical cross-sectional view showing an example of an anti-slip member 18 according to the second embodiment.

[0096] The anti-slip member 18 has a plate-shaped main body 18a. The anti-slip member 18 according to the second embodiment has an integral structure, unlike the anti-slip member 1 according to the first embodiment, which has a two-layer structure of a first layer 2 and a second layer 3. The anti-slip member 18 may be made of, for example, ether-based polyurethane. The coefficient of friction of the anti-slip member 18 is assumed to be greater than the coefficient of friction of the upper surfaces of the movable loading platforms C1 to C3.

[0097] The main body 18a of the anti-slip member 18 is, for example, disk-shaped and has a vertical through-hole 18b in the center that passes through the main body 18a from the top to the bottom. The main body 18a may have another shape instead of a disk shape. The through-hole 18b includes a hole 19 on the bottom side and a hole 20 on the top side. The hole 19 on the bottom side and the hole 20 on the top side are coaxial.

[0098] The diameter of the holes 19 on the lower surface side is different from the diameter of the holes 20 on the upper surface side. The diameter of the holes 20 on the upper surface side is larger than the diameter of the holes 19 on the lower surface side.

[0099] The corners formed by the top and side surfaces of the anti-slip member 18 are chamfered and have inclined portions 21 that are inclined relative to the top and side surfaces.

[0100] The thickness of the anti-slip member 18 is, for example, 6 mm.

[0101] The diameter of the lower surface of the anti-slip member 18 may be, for example, 40 mm.

[0102] The diameter of the hole 19 on the lower surface side may be, for example, 8.5 mm. The length (height) of the hole 19 on the lower surface side in the axial direction may be, for example, 3 mm.

[0103] The diameter of the upper surface side hole 20 may be, for example, 18 mm, and the axial length of the upper surface side hole 20 may be, for example, 3 mm.

[0104] The chamfer offset (D×D) may be, for example, D=2 mm. In other words, the corners of the circumferential portion of the upper surface of the anti-slip member 18 are chamfered by 2 mm in the horizontal direction and 2 mm in the vertical direction.

[0105] The length of the through hole 19 on the underside of the anti-slip member 18 according to the second embodiment is longer than the length of the through hole 4 in the first layer 2 of the anti-slip member 1 according to the first embodiment. In this way, even when the anti-slip member 18 is formed of resin without using metal, when the anti-slip member 18 is attached to the movable loading platforms C1 to C3 with the bolts 7 and nuts 8, the anti-slip member 18 can be prevented from being damaged and coming off the movable loading platforms C1 to C3.

[0106] The anti-slip member 18 according to the second embodiment can be made using fewer types of materials than the anti-slip member 1 according to the first embodiment described above, which simplifies the manufacturing process and reduces manufacturing costs.

[0107] In the second embodiment, the same effect as in the first embodiment described above can be obtained, and the pallets P1 to P3 loaded on the movable loading platforms C1 to C3 and the loads B1 to B3 loaded on the pallets P1 to P3 can be prevented from sliding off.

[0108] In the above embodiments, the anti-slip members 1, 18 are described as being provided on the movable storage device 11, but they may also be provided on other devices to prevent the load from slipping.

[0109] Furthermore, the present invention is not limited to the above-described embodiments, and the components can be modified and embodied in practice without departing from the spirit of the invention. Furthermore, various inventions can be formed by appropriately combining multiple components disclosed in the above-described embodiments. For example, some components may be omitted from all the components shown in the above-described embodiments. Furthermore, components from different embodiments may be appropriately combined. [Explanation of symbols]

[0110] 1,18...anti-slip member, 2...first layer, 3...second layer, 4,5...through hole, 6,21...inclined portion, 7...bolt, 7a...head, 7b...screw portion, 8...nut, 9,C1 to C3...movable loading platform, 10...through hole, 11...movable storage device, 12a,12b...rail, 13...level base, 14...front member, P0 to P3...pallet, B0 to B3...load, 19,20...hole

Claims

1. A pair of inclined rails; a plurality of movable loading platforms of different heights each movably supported on the inclined rail via wheels; an anti-slip member fixed to an upper surface of at least one of the plurality of movable loading platforms using bolts and nuts; Equipped with The anti-slip member is a first layer having a first through hole; a second layer provided on the first layer, the second layer having a second through hole coaxial with the first through hole; Equipped with The diameter of the second through hole is larger than the diameter of the first through hole, the edge of the upper surface of the second layer is chamfered; the first layer is disc-shaped; the first through hole is concentric with the first layer; the second layer is disc-shaped; the second through hole is concentric with the second layer; the first layer is a metal; the second layer is an ether-based polyurethane; Movable storage device.

2. A movable storage device as claimed in claim 1, wherein the anti-slip member is attached to the front side of at least one of the plurality of movable cargo platforms.

3. A movable storage device as claimed in claim 1, wherein the anti-slip member is provided on a corner portion of at least one of the plurality of movable cargo platforms.

Images