JP2001128766A - Fall prevention device of articles in article shelf - Google Patents

Abstract

PROBLEM TO BE SOLVED: To securely keep a fall prevention bar on an article shelf in a simple structure and prevent a article projected forward out of the article shelf from dropping. SOLUTION: Engaging claws 11 formed at the rear end of bar support brackets 12, 13 are selectively engaged with a plurality of engaging holes in which the engaging claws 11 of a shelf support bracket 8 of a pair of right and left supports 4, 5 can be selectively fixed, thereby, a pair of right and left bar support brackets 12, 13 can be projected forward in the pair of right and left supports 4, 5, and a fall prevention bar 18 that fastening members 19, 19 are screwed in the both right and left ends is hung on notched recesses 20 formed at the front end of the bar support bracket to hold the bar support bracket by the fastening member and the end of the fall prevention bar and install the fall prevention bar 18 at the front ends of the pair of bar support brackets.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for preventing an article placed on a shelf board of an article shelf from falling off the shelf board due to vibration or the like.

[0002]

2. Description of the Related Art In the article fall prevention device described in Japanese Utility Model Publication No. 3003619, every time an article is taken out of a shelf board, a fall prevention bar is slid up and down. In the seismic drop prevention device described in Japanese Patent Application Laid-Open No. 11-178665, a horizontal rod is rotated via an arm when an article is taken out from a shelf. In the fall prevention device described in Japanese Patent Application Laid-Open No. H11-89655, a fall prevention rod is fitted to a bearing portion.

[0003]

However, the first device for preventing the article from falling and the second device for preventing the seismic drop from falling have a complicated structure and increase the cost. In the last drop prevention device, when the fall prevention rod was pushed backward by mistake, the fall prevention rod sometimes came off the bearing. Furthermore, in each of the above-described devices, it is not possible to prevent an article protruding forward from an article shelf from falling.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an article fall prevention device which has a simple structure and which can securely hold a fall prevention bar on an article shelf and can prevent articles protruding forward from the article shelf from falling. And

[0005]

According to the present invention, the above-mentioned problem is solved as follows. (1) In an article shelf in which a plurality of engaged holes capable of selectively engaging engagement claws of a shelf receiving bracket for supporting a shelf plate are drilled in the vertical direction of a pair of right and left columns, the article supporting hole is located behind the bar supporting bracket. By selectively engaging an engaging claw formed at an end with the engaged hole, a bar support bracket is protruded forward from each of the columns, and a drop-prevention bar in which fastening members are screwed into left and right ends. Over the notch recess formed at the tip of the bar support bracket, and sandwiching the bar support bracket between the fastening member and the end of the drop prevention bar, thereby forming the pair of bar support brackets. Install a fall prevention bar at the tip.

(2) In the above item (1), the tightening member is a headed screw having a head for holding the bar support bracket between the end of the fall prevention bar and the fastening member. An annular ridge is provided on one of the opposing surfaces of the end portion and the head of the headed screw, and a projection having a smaller diameter than the inner diameter of the annular ridge is provided on the other.

(3) In the above item (1), the opening of the notch recess is directed obliquely upward and forward.

(4) In the above item (1), an L-shaped bar support bracket receiving recess is formed in a front corner of the facing surface of the pair of right and left columns, and a rear end of the bar support bracket is formed. A step is formed along the opposed surface and the bar supporting bracket receiving recess.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to FIGS. The article shelf (1) comprises four cylindrical pillars (3), (3), (4), (5) standing upright in front of and behind a pair of left and right horizontal leg rods (2) (2) facing in the front-back direction. ), A pair of right and left columns (3) and (3) at the rear, and a horizontal rod (6) facing the left and right, and a pair of left and right columns (3) and (4).
(3) (5) A plurality of engaged holes provided in the vertical direction.
(7) a pair of left and right shelf receiving brackets (8) and (8) facing in the front-rear direction for selectively engaging and connecting engaging claws (not shown);
The shelf plate (9) passed over the pair of shelf support brackets (8) forms a left-right symmetry.

A plurality of shelves 9 are provided, for example,
An article (W1) such as an OA device such as a personal computer can be placed thereon, and an article (W2) is provided below the article shelf (1).
Can be inserted.

[0011] Opposite surfaces (4) of a pair of front left and right columns (4) and (5)
a) A pair of left and right bar support brackets (12) projecting forward into three selected engaged holes (7) among a plurality of engaged holes (7) drilled in (5a). At the rear end of (13), three engaging claws (11) projecting outward are engaged. Note that the bar support brackets (12) and (13) are bent inwardly stepped at the rear portion, and an engagement claw (11) is provided on the rear end piece.

It is longer than the bar support brackets (12, 13),
A similar shape (22) (23) is also prepared, but the length is the same as the shorter (12) (13) except for the length, so the description of the longer (22) (23) Is omitted.

The opposing surfaces (4) of a pair of front left and right columns (4) and (5)
a) At the front corner of (5a), L-shaped bar support placket receiving recesses (14) and (15) are formed in plan view. This receiving recess (14)
(15) is combined with the steps (16) and (17) formed at the rear part of the bar support brackets (12) and (13), whereby an external force in the vertical and horizontal directions is applied to the fall prevention bar (18) described later. This is also to prevent the tips of the bar support brackets (12) and (13) from tilting up, down, left and right, and to the bracket side supports (14a) (15b) parallel to the front It consists of bracket rear supports (14b) (15b).

The inward step portions (16) and (17) formed at the rear ends of the bar support brackets (12) and (13) correspond to the opposing surfaces (4a) and (5) of the column (4).
a) and the bar support placket receiving recesses (14) and (15). That is, the inward step (16) (17)
Are formed by bending the rear ends of the bracket bodies (12a) and (13b) in close contact with the bracket side supports (14a) and (15b) and the rear ends of the bracket bodies (12a) and (13b) to form the bracket rear supports (14b). )
(15b) The rear surface portion (16a) (17a) which is in close contact with the rear surface portion (16a)
A rear extension (16b) formed by bending the inner end of (17a) backward
7b). The rear extending portions (16b) (17b) are provided with engaging claws (11) projecting outward.

At the tips of the bar support brackets (12) and (13), a cutout recess (20) is formed at the tip of the bar support bracket (12) and (13). I have.
The notch recess (20) has a fastening member screwed into female screw holes (21) (left female screw holes are not shown) formed at the left and right ends of the pipe-shaped drop prevention bar (18) facing left and right. The headed screw (19) is engaged.

Headed screw (19) screwed to drop prevention bar (18)
Into the notch recess (20) and tighten the bar support bracket (12) (13) from both sides with the head (19a) of the headed screw (19) and the end of the drop prevention bar (18). The fastening and drop prevention bar (18) is installed on the bar support brackets (12) and (13).

An annular ridge (18a) is formed on the side end surface of the fall prevention bar (18), and the inner diameter (D1) of the annular ridge (18a) is formed on the headed screw (19). ), A projection (19b) with a smaller diameter (D2) is formed, and with the tightening of the headed screw (19),
The protrusion (19b) deforms a part of the bar support brackets (12) and (13) to some extent into the annular ridge (18a) to deform the fall prevention bar (18) into the bar support bracket (12) ( It is designed so that it can be securely installed at 13).

The distance between the openings (20a) of the notched recesses (20) is determined by dropping the headed screws (19) into the notched recesses (20),
Until the (19) is tightened, the headed screw (19) is
Screw part (19c) of headed screw (19) so as not to come off from (20)
It is slightly smaller than the diameter of

A bar support bracket (12) (1) is mounted on the article shelf (1).
3) The fall prevention bar (18) provided through is connected to the article (W1).
To prevent movement and falling. For the article (W2) that protrudes greatly from the article shelf (1), the movement of the article (W2) is prevented by using the long bar support brackets (22) and (23). The articles are taken in and out by loosening the headed screw (19) and removing the fall prevention bar (18) from the bar support bracket (12) (13) or (22) (23).

[0020]

According to the first aspect of the present invention, the fastening member is tightened to provide the fall prevention bar on the article shelf.
Since the bar is installed at the tip of the pair of bar support brackets, the fall prevention bar can be securely held on the goods shelf as a simple structure, and the movement and fall of the goods can be reliably prevented.

Further, since the fall prevention bar is fastened to the bar support bracket by the fastening member, even if the fall prevention bar is touched by the human body, the fall prevention bar is moved from the bar support bracket. It is possible to reliably prevent the article from moving and falling without being detached.

Further, since the fall prevention bar is provided at the tip of a pair of bar support brackets projecting forward from the article shelf, it is possible to prevent the article projecting forward from the article shelf from falling. .

According to the second aspect of the present invention, when the headed screw is closed and a part of the bar support bracket is slightly deformed toward the annular ridge by the annular ridge and the projection, the deformation is reduced. Utilization can prevent the fall prevention bar from coming off the bar support bracket.

According to the third aspect of the present invention, since the opening of the cutout recess is directed obliquely upward and forward, the fall prevention bar can be easily incorporated into the bar support bracket.

According to the fourth aspect of the present invention, the combination of the receiving recess and the step prevents the bar support bracket from tilting in the vertical and horizontal directions, thereby reliably preventing the article from moving and falling. it can.

[Brief description of the drawings]

FIG. 1 is a perspective view of one embodiment of the present invention.

FIG. 2 is a perspective view showing a state where a fall prevention bar is removed and an article is pulled out.

FIG. 3 is an exploded perspective view of a fall prevention bar and a bar support bracket.

FIG. 4 is also an assembled plan view of the fall prevention bar and the bar support bracket, and is a partially broken view.

FIG. 5 is a view taken in the direction of arrows VV in FIG. 4;

[Explanation of symbols]

 (D1) Inner diameter of annular ridge (D2) Outer diameter of protrusion (W1) (W2) Article (1) Article shelf (2) Leg (3) Strut (4) Strut (4a) Opposing surface (5) Post (5a) Opposing surface (6) Side rod (7) Engagement hole (8) Shelf receiving bracket (9) Shelf (10) Trolley (11) Engagement claw (12) (13) Bar support bracket (12a ) (13b) Bracket body (14) (15) Recessed recess (14a) (15a) Bracket side receiver (14b) (15b) Bracket rear receiver (16) (17) Inward step (16a) (17a) Rear part (16b) (17b) Backward extension (18) Fall prevention bar (18a) Annular ridge (19) Headed screw (19a) Headed (19b) Projection (19c) Screw (20) Notch recess ( 20a) Opening (21) Female screw hole (22) (23) Bar support bracket

Claims (4)

[Claims] A bar support bracket is provided on an article shelf in which a plurality of engaging holes capable of selectively engaging engagement claws of a shelf receiving bracket for supporting a shelf board are formed in a vertical direction of a pair of right and left columns. By selectively engaging the engaging claw formed at the rear end of the bar with the engaged hole, the bar support bracket is projected forward from each of the columns, and the fastening members are screwed to the left and right ends. The prevention bar is spanned over a notch recess formed at the tip of the bar support bracket, and the bar support bracket is sandwiched between the fastening member and the end of the fall prevention bar, and the pair of bar supports is supported. An article fall prevention device for an article shelf, wherein a fall prevention bar is provided at the tip of a bracket. 2. A head screw having a head for holding the bar support bracket between the end of the fall prevention bar and the fastening member, and the end of the fall prevention bar and a head of a head screw. The article fall prevention device according to claim 1, wherein an annular ridge is provided on one of the surfaces facing the portion, and a projection having a diameter smaller than the inner diameter of the annular ridge is provided on the other. 3. The article drop prevention device according to claim 1, wherein the opening of the notch recess faces obliquely forward and upward. 4. An L-shaped bar support bracket receiving recess formed in a plan view at a front corner of the opposing surface of the pair of right and left columns, and the opposing surface and the bar are formed at the rear end of the bar support bracket. The article fall prevention device according to claim 1, wherein a step portion is formed along the support bracket receiving recess.