Anti-tipping devices for items in storage shelves

A simplified anti-tipping device for storage shelves using support panels and guide grooves with a locking mechanism addresses the complexity and cost issues of conventional designs, ensuring effective item retention and easy access.

JP7891254B2Active Publication Date: 2026-07-16AIS CO LTD

Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
AIS CO LTD
Filing Date
2023-06-07
Publication Date
2026-07-16

AI Technical Summary

Technical Problem

Conventional article tipping prevention devices in storage shelves have complex structures due to multiple components, leading to potential malfunctions and increased manufacturing costs.

Method used

An anti-tipping device comprising a pair of support panels with guide grooves and a tipping bar, where the guide grooves include vertical and horizontal portions, and a locking mechanism to secure the tipping bar, simplifying the structure and reducing parts.

Benefits of technology

The device effectively prevents stored items from tipping over with a simpler design, allowing easy removal and assembly, while reducing manufacturing costs compared to devices with electrical components.

✦ Generated by Eureka AI based on patent content.

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Abstract

To provide an object fall prevention tool on a storage rack, the improvement of the conventional object fall prevention tool on the storage rack, capable of reliably preventing objects from falling in a simple structure without causing trouble, etc. in operation.SOLUTION: An object fall prevention tool 10 on a storage rack 1 includes a fall prevention bar 40, and a pair of support panels 20 fixed to the storage rack 1 and supporting ends 41 and 41 of the fall prevention bar 40. Each support panel 20 includes a guide groove 50 for guiding the fall prevention bar 40, where the guide groove 50 includes a first groove 52 having a longitudinal part 51a extending in a vertical direction Y and a transverse part 51b extending rearward, and a second groove 52 extending downward from the rear end of the transverse part 51b. The second groove 52 includes a locking part 52a by which the fall prevention bar 40 is locked.SELECTED DRAWING: Figure 2
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Description

Technical Field

[0001] The present invention relates to an article tipping prevention device in a storage shelf for storing articles such as wine bottles and wine bottles.

Background Art

[0002] Conventionally, an article tipping prevention device in a storage shelf is known. For example, in the article tipping prevention device disclosed in Patent Document 1, a movable member to which a horizontal member for preventing the article from falling from the shelf board of the storage shelf of the article is fixed is engaged with a seismic pendulum provided on the shelf side, and is supported upward. When the pendulum swings due to vibration, the engagement is disengaged, and the horizontal member falls to a predetermined position by its own weight, preventing the article from falling from the shelf board.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the article tipping prevention device in the storage shelf disclosed in Patent Document 1, since an engagement device and seismic means are respectively provided on each shelf board of the storage shelf, the structure becomes complicated, malfunctions are likely to occur in operation, and the manufacturing cost increases due to an increase in the number of parts.

[0005] The problem of the present invention is an improvement of the article tipping prevention device in a conventional storage shelf, and an article tipping prevention device in a storage shelf that can reliably prevent the stored article from falling without malfunctioning in operation with a simple structure. It is to provide.

Means for Solving the Problems

[0006] The present invention relates to an article tipping prevention device in a storage shelf having a vertical direction and a front-rear direction.

[0007] The anti-tipping device for articles in a storage shelf according to the present invention comprises an anti-tipping bar and a pair of support panels fixed to the storage shelf and supporting both ends of the anti-tipping bar, wherein the support panels have guide grooves for guiding the anti-tipping bar, and the guide grooves include a first groove having a vertical portion extending in the vertical direction and a horizontal portion extending to the rear, and a second groove extending downward from the rear end of the horizontal portion. The aforementioned second groove extends downward while curving, The second groove is characterized by having a locking portion into which the anti-tipping bar is locked.

[0008] The anti-tipping device for articles in a storage shelf according to the present invention includes the following embodiments. (1) The lower end of the longitudinal portion of the first groove extends to the lower edge of the support panel. (2) The first groove has a plurality of transverse portions, and the second groove extends downward from the rear end of each of the transverse portions. (3) The support panel is the Delivery It has a mounting portion that is fixed to the shelf and a support portion that protrudes forward from the storage shelf, and the guide groove is formed in the support portion. (4) The support panel further comprises a locking lever that is rotatably mounted, wherein the tip of the locking lever is biased to overlap with the second groove. [Effects of the Invention]

[0009] In one or more embodiments of the present invention, an article anti-tipping device for a storage shelf has a pair of support panels that have guide grooves for guiding an anti-tipping bar, which prevents the stored articles from tipping over and allows the stored articles to be easily removed from the storage shelf by lowering the anti-tipping bar. [Brief explanation of the drawing]

[0010] The drawings illustrate specific embodiments of the anti-tipping device for articles in a storage shelf according to the present disclosure, including not only essential components of the invention but also optional and preferred embodiments. [Figure 1] Perspective view of the article tipping prevention device according to the present invention in the state of use. [Figure 2] Partial enlarged view of the article tipping prevention device. [Figure 3] Perspective view of the article tipping prevention device. [Figure 4] (A) Plan view of the support panel. (B) Side view of the support panel. [Figure 5] View similar to FIG. 2 in the state where the anti-tipping bar is lowered. [Figure 6] Plan view of the article tipping prevention device in the first embodiment. [Figure 7] Plan view of the article tipping prevention device in the second embodiment. [Figure 8] Plan view of the article tipping prevention device in the third embodiment. [Figure 9] Plan view of the article tipping prevention device in the fourth embodiment. [Figure 10] Plan view of the article tipping prevention device in the fifth embodiment. [Figure 11] Plan view of the article tipping prevention device in the sixth embodiment. [Figure 12] Plan view of the article tipping prevention device in the seventh embodiment. [Figure 13] (A) Plan view of the support panel of the eighth embodiment, (B) Plan view of the support panel viewed from above. [Figure 14] View similar to FIG. 13(A) showing the state of releasing the lock by the lock lever.

Mode for Carrying Out the Invention

[0011] Referring to the accompanying drawings, the details of the article tipping prevention device 10 in the storage shelf 1 according to the present invention will be described as follows.

[0012] As shown in FIGS. 1 to 3, the article toppling prevention device 10 in the storage shelf 1 according to the present invention is for preventing the stored articles 5 such as wine bottles, sake bottles, and foreign liquor bottles stored in the storage shelf 1 from toppling and falling, and has a vertical direction Y, a lateral direction X, and a front-rear direction Z, and includes a pair of left and right support panels 20, 20 and a rod-shaped toppling prevention bar 40.

[0013] The storage shelf 1 is a general storage shelf for business use or household use, and has a shelf board 2 and side plates 3 that support the shelf board 2. The pair of support panels 20, 20 of the article toppling prevention device 10 are fixed to the side plates 3 of the storage shelf 1 while supporting both end portions 41, 41 of the toppling prevention bar 40.

[0014] The stored articles 5 stored in the storage shelf 1 include, as shown in the figure, in addition to wine bottles, sake bottles, and foreign liquor bottles displayed in restaurants, bars, etc., apparel products such as clothes and footwear displayed in apparel stores, and various genres such as confectionery, fresh food, toys, and fresh flowers displayed in retail stores.

[0015] The support panel 20 and the toppling prevention bar 40 are preferably formed of metal or plastic. In the case of plastic, polyethylene, polypropylene, polyvinyl chloride, polystyrene, polyethylene terephthalate, ABS resin, EVA resin, polycarbonate, or polyamide can be used as the material. In addition to metal and plastic, they can also be formed from various known materials such as wood and ceramics.

[0016] Since the pair of support panels 20 are of the same shape and size, for the sake of brevity of description, only one of the support panels 20 will be described below, but it should be understood that the other support panel 20 has the same configuration.

[0017] Referring to Figure 4, the support panel 20 is substantially rectangular in shape and has upper and lower edges 20a, 20b extending in the front-rear direction Z, front and rear side edges 20c, 20d facing each other in the front-rear direction Z and extending in the up-down direction Y, and a guide groove 50 into which the end 41 of the anti-tipping bar 40 is locked. The support panel 20 also has through holes 21, 22 for fixing to the fixing holes of the side plate 3 of the storage shelf 1 via screws 8.

[0018] The guide groove 50 is L-shaped and has a first groove 51 and a second groove 52. The first groove 51 has a longitudinal portion 51a that extends vertically in the Y direction along the front edge 20c and a transverse portion 51b that extends rearward along the upper edge 20a. The second groove 52 extends downward from the rear end of the transverse portion 51b of the first groove 51. The lower end 51c of the first groove 51 extends to the lower edge 20b of the support panel 20, and a part of the lower edge 20b is open.

[0019] The second groove 52 of the guide groove 50 has a locking portion 52a at its lower end, into which the end portion 41 of the anti-tipping bar 40 is locked. The locking portion 52a is convex and curved to conform to the outer shape of the anti-tipping bar 40, and its width dimension (dimension in the front-rear direction Z) is larger than the diameter of the anti-tipping bar 40. When the end portion 41 of the anti-tipping bar 40 is positioned in the locking portion 52a, the movement of the anti-tipping bar 40 in the front-rear direction Z is restricted.

[0020] Here, the external dimensions of the support panel 20 depend on the size of the storage shelf 1, but for example, the front-to-back dimension (width dimension) W1 is 100 to 120 mm, the up-to-down dimension Y (length dimension) L1 is 150 to 190 mm, and the distance L2 from the lower edge 20b to the lower edge of the locking portion 52a of the guide groove 50 is 70 to 110 mm. The guide groove 50 is formed so that its width dimension W2 is equal, and the width dimension W2 depends on the diameter of the anti-tipping bar 40 that is supported, but for example, it is 5 to 10 mm.

[0021] Referring to Figure 1, in the state of use of the anti-tipping device 10, the end 41 of the anti-tipping bar 40 is located at the locking portion 52a of the guide groove 50, and the anti-tipping bar 40 extends laterally in the X direction in front of the stored items 5. The movement of the anti-tipping bar 40 in the front-rear direction Z is restricted by a pair of support panels 20, and the bar is stably supported. Therefore, even if the storage shelf 1 is subjected to vibration due to an earthquake or external impact, there is no risk of the stored items 5 tipping over or flying out of the storage shelf 1 and falling.

[0022] Referring to Figure 5, when a user takes out an item 5 from the storage shelf 1, they grasp the anti-tipping bar 40 and move the end 41 of the anti-tipping bar 40 upward from the locking portion 52a of the second groove 52 along the guide groove 50, and then move it from the transverse portion 51b of the first groove 51 toward the longitudinal portion 51a, until it comes into contact with the shelf board 2. When it moves toward the longitudinal portion 51a of the first groove 51, the user can release their hand from the anti-tipping bar 40, causing the anti-tipping bar 40 to fall onto the shelf board 2 by its own weight.

[0023] In this way, with the anti-tipping bar 40 lowered, the user can easily remove the stored items 5 from the front of the storage shelf 1. After removing the stored items 5, the user can grasp the anti-tipping bar 40 and move it along the guide groove 50 from the first groove 51 to the second groove 52, and lock the end 41 into the locking part 52a of the second groove 52, thereby positioning the anti-tipping bar 40 in front of the stored items 5, and once again preventing the stored items 5 from tipping over or falling by the item tipping prevention device 10.

[0024] According to the article tipping prevention device 10 of the present invention, by moving the tipping prevention bar 40 along the guide groove 50, it is possible to easily prevent the stored article 5 from tipping over or falling, and the stored article 5 can also be easily removed. Furthermore, since the article tipping prevention device 10 is composed only of a pair of support panels 20 and a tipping prevention bar 40, it has a simpler structure and can be manufactured at low cost compared to article tipping prevention devices that use electrical components.

[0025] <First Example> Figure 6 is a plan view of a support panel 20 of a first embodiment, which is an example of an embodiment of the article tipping prevention device 10 according to the present invention. The second groove 52 of the guide groove 50 of the support panel 20 extends diagonally forward from the rear end of the transverse portion 51b of the first groove 51. Due to the shape of the guide groove 50, in order to move the tipping prevention bar 40 to the first groove 51, it is necessary to move it diagonally backward along the second groove 52.

[0026] Even if a force is unexpectedly applied to the anti-tipping bar 40 that would cause it to move upward, the anti-tipping bar 40 will come into contact with the peripheral wall forming the second groove 52, preventing it from moving upward. Therefore, the anti-tipping bar 40 will not unintentionally move through the transverse portion 51b of the first groove 51 to the longitudinal portion 51a, thus maintaining its fall prevention effect.

[0027] <Second Example> Figure 7 is a plan view of a support panel 20 of a second embodiment, which is an example of an embodiment of the article tipping prevention device 10 according to the present invention. The second groove 52 of the guide groove 50 of the support panel 20 has a shape in which it extends linearly downward, then bends at the bent portion 52b and extends diagonally forward, and further bends at the bent portion 52c and extends linearly downward.

[0028] Thus, because the second groove 52 of the guide groove 50 has a shape that extends while bending downward, even if a force that would move the anti-tipping bar 40 upward is suddenly applied to the anti-tipping bar 40 while the end 41 of the anti-tipping bar 40 is locked to the locking part 52a, the bending parts 52b and 52c prevent the anti-tipping bar 40 from moving upward.

[0029] <Third Example> Figure 8 is a plan view of a support panel 20 of a third embodiment, which is an example of an embodiment of the article tipping prevention device 10 according to the present invention. The first groove 61 of the guide groove 60 of the support panel 20 has a longitudinal section 61a extending in the vertical direction Y along the front edge 20c, a lower end 61c located at the lower end edge 20b, an upper transverse section 61b extending linearly to the rear along the upper end edge 20a, and a lower transverse section 61d extending to the rear in the central part of the vertical direction Y of the support panel 20.

[0030] The second grooves 62 and 63 of the guide groove 60 extend diagonally in a straight line forward from the rear ends of the upper and lower transverse portions 61b and 61d of the first groove 61, and each has a locking portion 62a and 63a for locking the end portion 41 of the anti-tipping bar 40.

[0031] The shape of the guide groove 60 allows the fall prevention means by the anti-tipping bar 40 to be a two-tiered system, and the two anti-tipping bars 40 aligned in the vertical direction Y can prevent the stored items 5 from falling. For safer use, the anti-tipping bar 40 may be locked to both the locking parts 62a and 63a of the upper and lower second grooves 62 and 63, or it may be locked to only one of them.

[0032] For example, if the stored item 5 is a relatively short liquor bottle, the anti-tipping bar 40 can be secured to the second groove 63 located at the bottom, and if the stored item is a relatively tall wine bottle, the second groove 62 located at the top can be used, allowing the system to be used in different ways depending on the type of stored item 5.

[0033] <Fourth Example> Figure 9 is a plan view of a support panel 20 of a fourth embodiment, which is an example of an embodiment of the article tipping prevention device 10 according to the present invention. In this embodiment, the first groove 61 of the guide groove 60 of the support panel 20 has a longitudinal section 61a extending in the vertical direction Y along the front edge 20c, a lower end 61c located on the lower edge 20b side, an upper transverse section 61b extending linearly to the rear along the upper edge 20a, and a lower transverse section 61d extending to the rear in the central part of the vertical direction Y of the support panel 20.

[0034] The second grooves 62 and 63 of the guide groove 90 extend downward from the rear ends of the upper and lower transverse portions 61b and 61d of the first groove 61, bending as they go, and each has a locking portion 62a and 63a for locking the end portion 41 of the anti-tipping bar 40.

[0035] The lower end 61c of the first groove 61 is positioned spaced apart from the lower edge 20b of the support panel 20, forming a closed edge. This closed lower end 61c prevents the metal support panel 20 from warping in the longitudinal direction of the storage shelf 1 during use, and also prevents the anti-tipping bar 40 from hitting and damaging the shelf board 3.

[0036] Furthermore, in the first groove 61 of the guide groove 60, the corners located on both sides of the vertical transverse portions 61b and 61d are curved. If the corners were sharp, the cylindrical anti-tipping bar 40 might get caught on the corners, making smooth movement difficult. However, because the corners are curved, the anti-tipping bar 40 can move smoothly along the guide groove 60.

[0037] <Example 5> Figure 10 is a plan view of a support panel 20 of the fifth embodiment, which is an example of an embodiment of the article tipping prevention device 10 according to the present invention. The shape of the guide groove 60 in this embodiment is substantially the same as that of the third and fourth embodiments, so a description of the basic shape will be omitted, but the lower cross section 61d is straight, while the upper cross section 61b has a curved shape that is convex upward. Also, the second grooves 62 and 63 extend while bending downward, similar to the second embodiment.

[0038] In this embodiment, the upper transverse portion 61b of the first groove 61 has an upwardly convex curved shape, which allows the cylindrical anti-tipping bar 40 to move smoothly along the guide groove 60. In particular, the curvature R of the upper transverse portion 61b is 15 to 18, which is a relatively gentle curve, so it can be said that smoother movement can be achieved compared to a sharp curve.

[0039] <Sixth Example> Figure 11 is a plan view of a support panel 20 in an example of an embodiment of the article tipping prevention device 10 according to the present invention. The first groove 71 of the guide groove 70 of the support panel 20 has a longitudinal section 71a extending in the vertical direction Y, a lower end 71c located at the lower end edge 20b, an upper transverse section 71b extending linearly backward along the upper end edge 20a, an intermediate transverse section 71d located below the upper transverse section 71b, and a lower transverse section 71e located below the intermediate transverse section 71d.

[0040] The second grooves 72, 73, and 74 of the guide groove 70 extend diagonally in a straight line forward from the rear ends of the upper and lower transverse portions 71b, 71d and the intermediate transverse portion 71e of the first groove 71, and each has a locking portion 72a, 73a, and 74a for locking the end portion 41 of the anti-tipping bar 40.

[0041] The shape of the guide groove 70 allows the fall prevention mechanism using the anti-tipping bars 40 to be configured in three levels, and the three anti-tipping bars 40 aligned in the vertical direction Y can prevent the stored items 5 from falling. Depending on the application, the anti-tipping bars 40 can be locked to all three levels, two levels, or any one level.

[0042] <Example 7> Figure 12 is a plan view of the support panel 20 of the seventh embodiment in an example of an embodiment of the article tipping prevention device 10 according to the present invention.

[0043] In this embodiment, the support panel 20 has a mounting portion 25A that is fixed to the side plate 3 of the storage shelf 1, and a support portion 25B where the guide groove 80 is located. The mounting portion 25A has through holes 21 and 22 for fixing the support panel 20 to the side plate 3 via screws.

[0044] The first groove 81 of the guide groove 80 has a lower end 80c which is a closed end located spaced apart from the lower end 20b of the support panel 20, a longitudinal section 81a extending in the vertical direction Y, and a transverse section 81b extending rearward from the longitudinal section 81a. The transverse section 81b has an upwardly convex curved shape. The second groove 82 extends downward from the transverse section 81b while bending, and a locking portion 82a capable of locking the end 41 of the anti-tipping bar 40 is located at its lower end.

[0045] In this embodiment, the support panel 20 is fixed to the side plate 3 via the mounting portion 25A, and the guide groove 80 is located on the support portion 25B that protrudes forward from the storage shelf 1. Therefore, the anti-tipping bar 40 is located away from the shelf board 2 of the storage shelf 1.

[0046] For example, if the anti-tipping bar 40 is located inside the storage shelf 1, the anti-tipping device 10 cannot be used if the stored item 5 has relatively large external dimensions and a part of it protrudes slightly forward from the shelf board 2 of the storage shelf 1. As in this embodiment, by positioning the anti-tipping bar 40 away from the shelf board 2 of the storage shelf 1, even if a part of the stored item 5 protrudes forward from the shelf board 2, the anti-tipping bar 40 is positioned in front of the stored item 5, allowing the anti-tipping device 10 to be used properly.

[0047] Since the lower end 81c of the first groove 81 is spaced apart from the lower edge 20b of the support panel 20 and is a closed end, the anti-tipping bar 40 will not fall to the floor when the anti-tipping bar 40 is moved into the first groove 81 to remove the stored items 5 from the storage shelf 1. The lower end 81c of the first groove 81 has a curved shape that conforms to the outer shape of the cylindrical anti-tipping bar 40, similar to the locking portion 82a of the second groove 82.

[0048] <Eighth Example> Figure 13(A) is a plan view of the support panel 20 of the eighth embodiment, which is an example of an embodiment of the article tipping prevention device 10 according to the present invention; Figure 13(B) is a plan view of the support panel 20 viewed from above; and Figure 14 is a diagram similar to Figure 13(A) showing the release of the lock by the lock lever 95.

[0049] The support panel 20 of this embodiment is a two-stage type, similar to the fourth embodiment shown in Figure 9. The first groove 91 of the guide groove 90 of the support panel 20 has a longitudinal section 91a extending in the vertical direction Y along the front edge 20c, a lower end 91c located at the lower edge 20b, an upper transverse section 91b extending linearly to the rear along the upper edge 20a, and a lower transverse section 91d extending to the rear in the central part of the support panel 20 in the vertical direction Y.

[0050] The second grooves 92 and 93 of the guide groove 90 extend downward while bending from the rear ends of the upper and lower transverse portions 91b and 91d of the first groove 91, and each has a locking portion 92a and 93a for locking the end portion 41 of the anti-tipping bar 40.

[0051] At the corner where the front edge 20c and rear edge 20d of the support panel 20 intersect, a lock lever 95 is fixed so as to be rotatable via a rotating shaft 94, and a stopper 96 for restricting the rotation of the lock lever 95 is located. The lock lever 95 is L-shaped and has a base end 95A fixed to the support panel 20 via the rotating shaft 94, and a tip end 95B having an inclined surface that contacts the anti-tipping bar 40.

[0052] As shown in Figure 13(B), a biasing spring (biasing means) 97 is positioned on the rotating shaft 94, and the lock lever 95 is biased by the biasing spring 97 so that its tip 95B is positioned to overlap with the second groove 92 of the guide groove 90.

[0053] When the lock lever 95 overlaps with the second groove 92, the end portion 41 of the anti-tipping bar 40 located at the locking portion 92a of the second groove 92 is restricted from moving upward. Therefore, even if a force is unexpectedly applied to the anti-tipping bar 40, such as by an earthquake, it is possible to prevent the anti-tipping bar 40 from moving upward unintentionally.

[0054] When moving the anti-tip bar 40 from the first groove 91 to the second groove 92, the user applies a downward force to the anti-tip bar 40 while bringing it into contact with the inclined surface of its tip 95B. As shown by the dashed line in Figure 13(A), the lock lever 95 rotates in the direction of arrow P via the rotation axis 94, against the biasing force of the biasing spring 97. When the tip 95B of the lock lever 95 is out of the second groove 92, its base end 95A comes into contact with the stopper 96, restricting its rotation.

[0055] Referring to Figure 14, when moving the anti-tip bar 40 from the locking portion 92a of the second groove 92 to the first groove 91, the user rotates the lock lever 95 with their finger in the direction of arrow P so that the tip portion 95B is released from the second groove 92, and then grasps the anti-tip bar 40 and moves it upward.

[0056] In the illustrated example, the lock lever 95 is positioned only for the second groove 92, but it may also be positioned for the second groove 93 located below it. Furthermore, without a biasing spring 97 on the rotating shaft 94, the lock lever 95 may be positioned so that its tip 95B overlaps with the second groove 92 by its own weight alone.

[0057] Unless otherwise specified, the constituent materials of the article tipping prevention device 10 in the storage shelf 1 according to the present invention may be any known material commonly used in this field, without limitation. [Explanation of symbols]

[0058] 1 Storage shelf 5. Items to be stored 10. Anti-tipping devices for items in storage shelves (anti-tipping devices for items) 20 support panels 25A Mounting section 25B Support part 40 Anti-tip bar 50 Guide groove 51 First groove 51a Longitudinal section 51b Transverse section 51c Lower end of the first groove 52 2nd groove 52a Locking part 60 Guide grooves 61 First groove 61a Longitudinal section 61b Transverse section 62,63 2nd groove 70 Guide groove 71 First groove 71a Longitudinal section 71b Transverse section 72 Second groove 80 Guide groove 81 First groove 81a Longitudinal section 81b Transverse section 82 2nd groove 90 Guide groove 91 First groove 91a Longitudinal section 91b Upper transverse section 92 2nd groove 95 Locking Lever 95B Tip of the lock lever Y vertical direction Z front and back direction

Claims

1. A device to prevent items from tipping over in a storage shelf having both vertical and horizontal directions, It comprises an anti-tipping bar and a pair of support panels fixed to the storage shelf and supporting both ends of the anti-tipping bar, The support panel has a guide groove for guiding the anti-tipping bar, The guide groove includes a first groove having a vertical section extending in the vertical direction and a horizontal section extending to the rear, and a second groove extending downward from the rear end of the horizontal section. The second groove extends downward while curving, The anti-tipping device for articles in a storage shelf is characterized in that the second groove has a locking portion into which the anti-tipping bar is locked.

2. The article tipping prevention device for a storage shelf according to claim 1, wherein the lower end of the longitudinal portion of the first groove extends to the lower edge of the support panel.

3. The article tipping prevention device for a storage shelf according to claim 1 or 2, wherein the first groove has a plurality of transverse portions, and the second groove extends downward from the rear end of each of the transverse portions.

4. The support panel has a mounting portion fixed to the storage shelf and a support portion protruding forward from the storage shelf, and the guide groove is formed in the support portion.

5. The anti-tipping device for articles in a storage shelf according to claim 1 or 2, further comprising a lock lever rotatably mounted on the support panel, wherein the lock lever is biased such that its tip overlaps with the second groove.