JPH08336432A - Member for preventing furniture from falling down - Google Patents

Abstract

PURPOSE: To provide a member for preventing furniture from falling down which comprises a small number of assembly parts, is structurally simple and is capable of positively preventing furniture from falling down without any restrictions in a waggling/rocking direction of furniture and its installation. CONSTITUTION: This member for preventing furniture from falling down consists of a pair of seat plate members 1, 1, a freely rotatable support member 3 installed upright on each seat plate member, a screw shaft member 5 provided in an orthogonal direction with the support member on the tip of each support member, and a lever member 6 with both end parts supported on both screw shaft members in a freely rotating manner. Thus each support member 3 and the lever member 6 freely rotate to each other as a second rotary joint, so that the member for preventing funiture from falling down can be installed in the three dimensional direction and the freely bending manner.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a furniture overturning preventive tool used for fixing furniture such as a closet and a bookshelf to a wall or a pillar in a room so as to prevent the furniture from overturning in the event of an earthquake.

[0002]

2. Description of the Related Art Conventionally, as a means for preventing furniture from falling over, furniture is held by a string member such as a chain, a string, or a wire that is hung between a fixed portion such as a pillar, a wall, a lintel, or a lasso. There is a means. There is also a means for directly connecting the furniture and the fixed portion with an L-shaped metal fitting.

[0003]

The above-mentioned means for preventing falls by a cord member such as a chain, a cord, or a wire has the disadvantage that it cannot prevent falls depending on the direction of the furniture shaking, such as during an earthquake. The L-shaped metal fitting does not have the drawbacks of the cord member, but there is an inconvenience that the mounting is restricted depending on the distance and the angular relationship between the furniture and the fixed portion.

As a solution to the above problems, for example, as disclosed in Japanese Utility Model Publication No. 3-47548,
A fall prevention tool for furniture has been proposed in which a plurality of rigid members are directly connected via a universal joint mechanism. However, since the furniture fall prevention tool having the above-mentioned configuration has a large number of parts to be assembled and the entire structure is complicated, it takes time to manufacture and the cost becomes high.

[0005]

It is an object of the present invention to reduce the number of parts to be assembled,
The main object of the invention is to provide a furniture overturning preventive tool that has an extremely simple structure and is capable of reliably preventing the overturning of furniture without being restricted by the swinging direction of the furniture or installation.

[0006]

A fall prevention tool for furniture according to the present invention comprises a pair of seat plate members which can be attached to furniture and a fixed portion by screws or the like, and an upright position on each seat plate member. A rotatably provided support member, a shaft member provided at a tip portion of the support member in a direction orthogonal to the support member, and hung between support members on the seat plate members, The gist is that both ends are composed of a lever member rotatably supported by the shaft member.

[0007]

According to the above construction, the seat plate member and the strut member form a mutually rotatable first rotary joint, and further, the lever member and the strut member, which are suspended between the strut members, are mutually connected. Since two freely rotatable second rotary joints are formed, the first rotary joint and the two second rotary joints can be used to prevent the third-order preventive device according to the mutual position and the angular relationship between the furniture and the fixed portion. It can be freely bent and attached in the original direction.

[0008]

1 to 3 show an embodiment of the present invention. In the figure, (1) and (1) are a pair of rectangular metal seat plate members,
(2) is a bowl-shaped protrusion that is made to protrude at the central portion of each seat plate member (1) by pressing, and (3) is a metal that is rotatably provided in an upright state on this bowl-shaped protrusion (2). A pillar member made of steel, and in this embodiment, the small diameter portion formed at the lower end of the pillar member (3) is inserted into the hole formed in the bowl-shaped protrusion (2), and the washer (4) is inserted from the back side of the protrusion. After that, the small-diameter portion is caulked, so that the column member (3) and the seat plate member (1) form a first rotary joint that is rotatable with respect to each other.

Each of the strut members (3) has a tip end branched into a bifurcated shape, and a screw shaft member (5) is detachably attached to the bifurcated portion in a direction orthogonal to the strut member. ing. (6)
Is a lever member hung over the tip of each of the column members (3), and the lever member (6) has both ends rotatably supported by the screw shaft member (5). (6)
Two second revolute joints which are rotatable with respect to each other are formed by and the column member (3).

The seat plate member (1) is provided with screw through holes (1a) at its four corners, and wood screws (7) are attached to furniture or a fixed portion such as a wall or a pillar through the screw through holes. The seat plate member (1) can be attached to furniture or a fixed portion by screwing.

4 to 6 show examples of use of the furniture fall prevention tool. FIG. 4 is a plan view showing a state in which the furniture (A) and the pillar (B) are connected with a preventive tool, and FIG. 5 is a state in which the furniture (A) and the pillar (B) are connected with a preventive tool. 6 is a plan view showing a state in which the furniture (A) and the pillar (B) in a non-parallel relationship with the furniture (A) are connected to each other.

The furniture fall prevention tool having the above-mentioned structure is provided for each seat plate member.
(1) and the strut member (3) form a mutually rotatable first revolute joint, and the lever member (6) and strut member ((6) straddled between the strut members (3) and (3) 3) and (3), two second rotary joints that are rotatable with respect to each other are formed.
As shown in the example of use, the fall prevention tool can be freely bent and attached in the three-dimensional direction according to the positional relationship and the angular relationship between the furniture and the fixed portion.

According to the above construction, the lever member (6)
Is supported by the pillar member (3) by the screw shaft member (5), so by removing the screw shaft member (5), it is possible to replace it with a lever member having a different length prepared in advance, As a result, the range of use of the preventive tool can be expanded.
Further, if necessary, a cord member such as a chain or a wire can be connected instead of the lever member (6).

The strength of the product of the present invention was measured at the Small and Medium Enterprise Promotion Center in the Joto area of Tokyo under the following conditions. For comparison, four products of other companies (furniture overturning preventive devices for the same purpose) sold in the general market were prepared and measured under the same conditions to obtain the maximum tensile strength. The results are shown in Table 1.

Test conditions Tester: AG-5KND manufactured by Shimadzu Corporation Tensile speed: 10 mm / min Test chamber temperature: 23 ° C. The results are shown in Table 1.

[0016]

[Table 1]

As shown in the above table, the product of the present invention has a higher tensile strength than the products of other companies on the market, and therefore it is recognized that the product of the present invention has a high earthquake resistance when used for furniture and the like.

[0018]

As described in detail above, according to the present invention,
The number of parts to be assembled is 2 seat plate members, 2 column members, 2 shaft members, 1 lever member, and the overall structure is extremely simple, so the design is easy and the structure has high strength. It is possible to inexpensively provide a fall prevention tool for furniture having the above.

[Brief description of drawings]

FIG. 1 is a front view of a fall prevention tool for furniture according to an embodiment of the present invention.

FIG. 2 is a plan view of the fall prevention tool.

FIG. 3 is a side view of the fall prevention tool.

FIG. 4 is a plan view showing an example of use of the fall prevention tool.

FIG. 5 is a side view showing another example of use of the fall prevention tool.

FIG. 6 is a plan view showing another usage example of the fall prevention tool.

[Explanation of symbols]

 1 Seat plate member 1a Screw through hole 2 Bowl-shaped protrusion 3 Strut member 4 Washer 5 Screw shaft member 6 Lever member 7 Wood screw A Furniture B Pillar

Claims (2)

[Claims] 1. A pair of seat plate members that can be attached to furniture and a fixed part by screws or the like, and a support member and a support member that are rotatably provided in an upright state on the seat plate members. A lever member that is hung between a shaft member provided at a tip end portion of the shaft member in a direction orthogonal to the pillar member and a pillar member on the both seat plate members, and has both ends rotatably supported by the shaft member. A fall prevention tool for furniture, characterized by comprising: 2. A seat plate member, a support member rotatably provided on the seat plate member in an upright state, and a detachable member provided at a tip end portion of the support member in a direction orthogonal to the support member. A fall prevention tool for furniture, comprising a free shaft member.