JP2002223877A - Anti-drop-off device for storage shelf - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an anti-drop-off device for a storage shelf with a simple structure which is designed not to cancel an anti-drop-off mode when the storage shelf feels big jolts such as earthquakes. SOLUTION: The anti-drop-off device for the storage shelf is equipped with the following parts: A pair of catching parts 13 for the left and right are provided on right and left posts 1 on the front of the storage shelf. An anti-drop-off part 19 is placed above the front part of a shelf board 2 by catching the right and left ends of the anti-drop-off part on the catching parts 13 and prevents stored objects on the shelf board 2 from falling forward. A stopper 23, which prevents the ends of the anti-drop-off part caught on the catching parts 13 from moving upward, is placed above the catching part 13 on the front of either the right or left post 1 in a manner that the stopper 23 can move between a position where the end of the anti-drop-off part 19 is blocked to move upward and a position where the end of the anti-drop-off part 19 is allowed to move upward.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for preventing falling off of a storage shelf represented by a steel shelf or the like.

[0002]

2. Description of the Related Art FIG. 7 is an exploded perspective view showing the structure of a typical conventional steel shelf. This storage shelf has four columns
(1), a plurality of shelves (2), side plates (3), rear plates (4), connecting members (5) and the like.

[0003]

In this storage shelf, as shown in the figure, a receiving plate (6) is attached to the front edge of the shelf (2), so that the storage from the front of the shelf (2) is possible. Objects can be prevented from falling off. However, when the fixed receiving plate (6) is attached, the receiving plate (6) becomes a hindrance when the stored items are taken in and out of the shelf plate (2), and the storing operation becomes extremely inconvenient. . Also, even if it is a removable receiving plate,
In many cases, there is no place to temporarily place the removed receiving plate, which is inconvenient.

[0004] On the other hand, conventionally, as an alternative to the fixed receiving plate, there is a device provided with a fence which can be switched between a fall prevention state and an open state (for example, Japanese Utility Model No. 2).
-4603). However, in this configuration, when a large vibration such as an earthquake is received, the fence jumps up and the state is easily switched from the falling prevention state to the open state, so that the falling prevention function may not be exhibited.

The present invention has been made in view of the above-mentioned problems of the prior art, and is intended to prevent the falling-off prevention state from being released even when subjected to a large vibration such as an earthquake.
It is an object of the present invention to provide a fall prevention device for a storage shelf having a simple structure.

[0006]

According to the present invention, the above-mentioned problem is solved as follows. (1) A pair of left and right receiving tools provided on the left and right columns on the front side of the storage shelf, and the left and right ends are locked to the receiving tools, so that the shelf is located above the front of the shelf board, A fall prevention device for a storage shelf including a fall prevention member for preventing a storage item on a plate from falling forward, wherein the fall prevention device is locked to the reception device above the reception device on the front surface of one of the right and left columns. Stopper means for preventing upward movement of the end of the falling-off preventing member, a blocking position for preventing upward movement of the end of the falling-off preventing member, and allowing upward movement of the end of the falling-off preventing member. To be movable to the release position where

(2) In the above item (1), the stopper means is provided at the lower end thereof with a blocking piece for preventing the end of the falling-off preventing member from moving upward, and the upper end is pivotally attached to the front surface of the column.
The blocking piece is rotatable between a blocking position in which the blocking piece faces substantially directly below, and a release position in which the blocking piece is flipped up to the side or upward to permit the upward movement of the end of the falling-off preventing member.

(3) In the above-mentioned item (1), the stopper means is provided by contacting the frontward projecting portion with the rear upper portion of the end of the falling-off preventing member locked by the receiving member. The protrusion is elastically deformed rearward by applying a resistive force to the upward movement of the end, and is formed by an elastic member configured to allow the end of the fall-off preventing member to move upward. .

(4) In the above item (1), the stopper means is attracted to the front surface of the column by a magnetic force, so that the end of the falling-off preventing member locked at the lower end by the stopper is moved upward. The permanent magnet is designed to be blocked.

(5) In the above item (4), a magnet receiving member is provided above the receiving member on the front surface of the column and in contact with the upper end of the permanent magnet to prevent the permanent magnet from moving upward.

(6) In any one of the above-mentioned items (1) to (5), the falling-off preventing member may be a laterally oriented horizontal rod whose left and right ends are locked by a receiving member. Vertical rods hanging down from the vicinity of both left and right ends of the horizontal rod, and pivots bent outward from the lower ends of the vertical rods are provided, and the pivots can be moved up and down on the front surfaces of the left and right columns. And attached so as to be rotatable around the axis, the falling-off prevention member, the falling-off prevention position where both ends of the horizontal rod are respectively locked to the receiving device, both ends of the horizontal rod are removed from the receiving device, In addition, the horizontal rod can be moved to an open position where the horizontal rod hangs below the pivot.

[0012]

1 to 3 show a storage shelf provided with a first embodiment of the present invention. In the storage shelf shown in FIG. 7 described as a conventional example, the structure other than the receiving plate (6) is common to that of the first embodiment of the present invention, and the same reference numerals are used for them. It is shown attached.

Each of the columns (1) has an angle shape, and a bracket or a support fitting () for supporting the shelf plate (2) is provided at the center of each of the two side pieces (1a) (1a) which are perpendicular to each other. A number of rectangular engagement holes (1
0) are drilled at equal intervals in the vertical direction.

At the position above the desired shelf plate (2) on the front surface of the left and right columns (1) on the front side of the storage shelf, a receiving portion projecting forward in an L-shape at the upper end. A receiving tool (13) having a pivot guide portion (12) having a rearward U-shape at the lower end portion, and an engaging hole (11) fixed to a middle portion of the rear surface thereof.
And a rectangular projection (14), which is complementary to the above, is fitted into an appropriate engaging hole (10), and a backing plate (15) is brought into contact with the rear surface of the support (1) from behind, and the projection ( Set screw (16) penetrated from the front from 14)
Is firmly fixed by screwing it into a screw hole (17) provided in the backing plate (15).

By fixing the receiving member (13) to the column (1) in this way, the pivot guide portion (12) of the receiving member (13) and the front surface of the column (1) will be described below. Fall-off prevention member (19)
A long hole (18) is formed in the vertical direction into which the pivot (22) is fitted. Note that an upwardly facing piece (not shown) may be continuously provided at the rear end of the lower end of the receiving tool (13) so that the receiving tool (13) itself forms a complete long hole (18).

In this example, the falling-off preventing member (19) is provided with a horizontal rod (20) facing left and right such that the left and right ends are locked to the receiving portion (11) of the receiving member (13). A vertical rod (21) hanging down from the vicinity of both left and right ends of the horizontal rod (20), and a pivot (22) bent outward from the lower end of each vertical rod (21) to the left and right. twenty two)
1 to 3 by fitting vertically into a long hole (18) formed at the lower part of the left and right receiving tool (13) so as to be vertically movable and rotatable about the axis of the pivot (22). As shown by the solid line,
The left and right ends of (20) are respectively engaged with the receiving portions (11) of the receiving device (13), and the horizontal rod (20) is located at a position above and in front of the shelf plate (2). As shown by imaginary lines in FIG. 3, both ends of the horizontal rod (20) are detached from the receiving portions (11) of the stoppers (13), and
(20) can be moved to an open position that hangs down below the pivot (22) and the upper surface of the shelf (2).

Above the catch 13 on the front surface of one or both of the front left and right columns 1 and 1 (only the left column 1 in this example), a receiving portion ( The stopper (stopper means) (23), which prevents the horizontal rod (20) from moving upward from the left end of the drop-preventing member (19) locked to (11), is turned around the axis line in which the front-rear direction is oriented. It is pivoted as movable.

More specifically, an appropriate engagement hole (10) above the receiving member (13) on the front surface of the left column (1)
A rectangular projection (25) fixed to the rear surface of the vertical support plate (24) is fitted, and a stopper is attached to the cylindrical shaft (26) protruding from the front surface of the support plate (24).
A shaft hole drilled at the upper end of the vertical base piece (23a) in (23)
(27) was rotatably fitted, and a circular pressing plate (28) provided in front thereof and a center of the support plate (24) from the cylindrical shaft (26) to the protrusion (25) were penetrated. Set the rear end of the set screw (29)
(1) Screw holes (31) provided on the backing plate (30) abutting on the rear surface
The stopper (23) is pivotally attached to the front surface of the column (1) by screwing and tightening.

The stopper (23) is provided with the above-mentioned vertical base piece (23).
a), the horizontal rod (20) of the drop-off preventing member (19), which is formed to be bent forward from the lower end of the base piece (23a), and is locked to the receiving portion (11).
Blocking piece (23b) for preventing the left end of the base piece from moving upward, and a side piece (23c) bent forward from the right edge of the base piece (23a).
The blocking piece (23b) is normally located at a blocking position where the blocking piece (23b) faces almost directly below as shown by a solid line in FIG. 1 due to its own weight. As shown by the imaginary line, the blocking piece (23b) is rotated to the release position where it is located laterally or upward, thereby moving the left end of the horizontal rod (20) of the drop-off prevention member (19) upward. Can be tolerated.

Therefore, since the stopper (23) is always located at the blocking position, the left end of the horizontal rod (20) of the falling-off preventing member (19) tends to jump up due to vibrations such as an earthquake. , Its upward movement is blocked by the blocking piece (23b),
The left end of the horizontal rod (20) does not come off the receiving part (11).

When it is desired to move the stopper member (19) to the open position, first, the stopper (23) is turned to the release position, and then the stopper member (19) is lifted and the horizontal rod (20) is moved. Pull it forward to get over the upper end of the receiving part (11) of the receiving tool (13), and then leave the fall-off prevention member (19) under its own weight to pivot.
What is necessary is just to pivot forward and downward about (22).

A known elastic pressure holding means for holding the stopper (23) so as not to move unnecessarily to another position between the blocking position and the release position, and a stopper (23) include:
When it is located between the blocking position and a predetermined intermediate position, it is biased toward the blocking position, and when it is located between the intermediate position and the releasing position, it is biased toward the releasing position. It is preferable to provide a well-known spring means such as a so-called click spring. In particular, when the stoppers (23) are provided on the left and right columns (1), (1), it is desirable to provide such resilient pressure holding means and spring means.

FIG. 4 shows a main part of a storage shelf provided with a second embodiment of the present invention. The same members as those in the first embodiment are denoted by the same reference numerals, and are not illustrated.
Detailed description of them will be omitted (see FIGS. 5 and 6).
The same applies to the third embodiment shown in FIG.

In this embodiment, an elastic member (33) formed by a leaf spring which is formed in a vertical direction and has a projection (32) projecting forward in a side view at an intermediate portion in a mountain shape in a side view is used as stopper means. , The lower part of which is sandwiched between the front surface of the column (1) and the receiving member (13) and attached to the column (1), and the projection (32)
Is locked to the receiving part (11) of the stopper (13).
By contacting the rear upper part of the left end of the horizontal rod (20) of 9),
A resistance is given to the upward movement of the left end of the horizontal rod (20), and the protrusion (32) elastically deforms rearward, thereby allowing the upward movement of the left end of the horizontal rod (20). Like that. Also in this case, it is possible to prevent the falling-off preventing member (19) from falling off from the receiving member (13) when receiving a large vibration such as an earthquake.

The elastic member (33) is made of, for example, an elastic body such as rubber whose side shape protrudes forward in a mountain shape, and is directly fixed to the front surface of the column (1) with a set screw or the like. Is also good.

FIGS. 5 and 6 show a main part of a storage shelf provided with a third embodiment of the present invention. In this embodiment, the stopper means is attracted to the front surface of the column (1) by magnetic force, so that the lower end of the stopper member (19) locked to the receiving portion (11) of the stopper (13) at the lower end. A permanent magnet (34) is provided to prevent the left end of the horizontal rod (20) from moving upward.

[0027] Further, a receiving member (13) on the front surface of the column (1).
A magnet receiver (37) having a hook-shaped receiving portion (35) (36) projecting forward in an upward L-shape and a downward L-shape at the upper and lower ends at the upper and lower ends of the set screw (38) ), And the left end of the horizontal rod (20) moves upward by engaging the permanent magnet (34) with the lower receiving part (36) as shown by the solid line in FIGS. When trying to keep the permanent magnet (34) from moving upward with it,
When it is not in use, it is engaged with the lower receiving portion (36) as shown by imaginary lines in FIGS. 5 and 6, so that the permanent magnet (34) comes into contact with another object and falls. Or not to be.

Even with such a configuration, the same effects as in the first and second embodiments can be obtained.

[0029]

According to the present invention, the following effects can be obtained. (A) According to the first aspect of the present invention, even in the case of receiving a large vibration such as an earthquake, the falling-off preventing member is prevented from jumping up by the stopper means, and the falling-off preventing member is prevented from coming off the receiving member. In addition, it is possible to prevent the stored items on the shelf plate from falling off the shelf plate during an earthquake or the like, and it is safe. Further, by simply moving the stopper means from the blocking position to the release position, the falling-off preventing member can be easily removed from the receiving member, and the stored items can be freely taken in and out of the shelf. Furthermore, the structure is simple, and the existing drop-off prevention device can be easily applied only by providing the stopper means.

(B) According to the invention of claim 2, claim 1
In addition to the effects of the invention, it is possible to easily switch between the blocking position and the release position only by rotating the stopper means from the front, and it is possible to obtain an effect that operability is good.

(C) According to the invention of claim 3, claim 1
In addition to the effects of the invention, there is no need to perform the switching operation of the stopper means, the handling is easy, and the effect of mounting and dismounting the falling-off prevention member is further facilitated.

(D) According to the invention of claim 4, claim 1
In addition to the effect of the invention, the use of the permanent magnet for the stopper means can provide an effect that the work of attaching and detaching the stopper means becomes easy.

(E) According to claim 5 of the present invention, claim 1
In addition to the effects of the inventions of (4) and (4), there is an effect that the upward movement of the permanent magnet when the permanent magnet is at the blocking position can be reliably blocked by the magnet holder.

(F) According to the invention of claim 6, claim 1 is provided.
In addition to the effects of the invention, the structure of the falling-off prevention member can be simplified, and the support of the pivot and the locking of the end of the horizontal rod can be performed by a single receiving member. Can be played.

[Brief description of the drawings]

FIG. 1 is a front view of a main part of a storage shelf provided with a first embodiment of the present invention.

FIG. 2 is a vertical sectional side view taken along the line II-II of FIG.

FIG. 3 is a perspective view of a main part, similarly.

FIG. 4 is a side view of a main part of a storage shelf provided with a second embodiment of the present invention.

FIG. 5 is a perspective view of a main part of a storage shelf provided with a third embodiment of the present invention.

FIG. 6 is also a side view.

FIG. 7 is an exploded perspective view of a conventional storage shelf.

[Explanation of symbols]

 (1) Support (1a) Side piece (2) Shelf (3) Side plate (4) Rear plate (5) Connecting material (6) Receiving plate (10) Engagement hole (11) Receiving part (12) Pivot Guide part (13) Receiving tool (14) Projecting part (15) Backing plate (16) Set screw (17) Screw hole (18) Slotted hole (19) Fall prevention member (20) Horizontal rod (21) Vertical rod ( 22) Axis (23) Stopper (stopper means) (23a) Base piece (23b) Blocking piece (23c) Side piece (24) Support plate (25) Projection (26) Cylindrical shaft (27) Shaft hole (28) Holder Plate (29) Set screw (30) Patch plate (31) Screw hole (32) Projection (33) Elastic member (stopper means) (34) Permanent magnet (stopper means) (35) (36) Receiving part (37) Magnet holder (38) Set screw

Claims (6)

[Claims] 1. A pair of left and right receiving members provided on left and right columns on the front side of a storage shelf, and left and right ends thereof are engaged with the receiving members to thereby be positioned above a front portion of a shelf plate. A drop-off prevention device for a storage shelf, comprising: a drop-off prevention member for preventing a storage item on a shelf plate from falling forward; The stopper means for preventing the stopped end of the falling-off member from moving upward is provided with a stopping position for preventing the end of the falling-off preventing member from moving upward, and the upward movement of the end of the falling-off preventing member. A drop-off preventing device in a storage shelf, wherein the device is provided so as to be movable to a release position that allows a drop. 2. The stopper means comprises a stopper at the lower end for preventing the end of the stopper member from moving upward, and the upper end is pivotally connected to the front surface of the column, and the stopper is directed substantially downward. 2. The drop-off prevention device according to claim 1, wherein the stop portion is rotatable between a stop position and a release position in which the end portion of the drop-off prevention member is allowed to move upward by flipping up the side or upward. apparatus. 3. The stopper means is moved upward by an abutment of a forward-facing projection with an upper rear portion of an end of the fall-prevention member locked by the stopper. 2. The storage shelf according to claim 1, wherein the projection is elastically deformed rearward, and the projection is elastically deformed rearward to allow upward movement of an end of the falling-off preventing member. Fall prevention device. 4. A permanent magnet, wherein the stopper means is attracted to the front surface of the column by magnetic force, thereby preventing upward movement of the end of the falling-off preventing member locked at the lower end by the receiving member. The drop-off prevention device for a storage shelf according to claim 1. 5. A drop-off in a storage shelf according to claim 4, wherein a magnet receiving member is provided above the receiving member on the front surface of the column and in contact with an upper end of the permanent magnet to prevent the permanent magnet from moving upward. Prevention device. 6. A drop-off prevention member comprising: a left-right-direction horizontal rod having left and right ends locked by a receiving tool; and a vertical rod hanging down from the vicinity of both left and right ends of the horizontal rod. A pivot formed to be bent left and right outward from the lower end of the vertical rod, wherein the pivot is mounted on the front surfaces of the left and right columns so as to be vertically movable and rotatable around an axis, and the falling-off prevention member is provided. Can be moved to a drop-prevention position where both ends of the horizontal rod are respectively locked to the stopper, and an open position where both ends of the horizontal rod are removed from the stopper and the horizontal rod hangs below the pivot. The fall prevention device for a storage shelf according to any one of claims 1 to 5.