JPH08252139A - Furniture fall preventing device - Google Patents

Abstract

PURPOSE: To make it possible to fix a furniture in a fall preventing condition without screwing it to other furniture, pillars, beams, or cross pieces in a room, and moreover, even for a place where no pillars are available. CONSTITUTION: A leg seat 11 is connected to one end of a hollow main shaft 1a, and a leg seat 12 is connected, at the other end of said main shift 1a, to the tip of a sub-shaft 1b which is inserted coaxially into said main shaft, and expandably or fixably, wherein either one of the leg seat 11 or the leg seat 12 is made rotatable relative to the main shaft 1a or the sub-shaft 1b to which it is connected.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a furniture fall prevention tool, and more particularly, to a fall prevention tool in which the upper end of the furniture is fixed in relation to a house in the event of an earthquake.

[0002]

2. Description of the Related Art As a countermeasure against earthquakes, a method of fixing furniture and constituent members of a house with metal fittings is adopted. This method has the advantage that large pieces of furniture can be fixed with small metal fittings. However, in the case of this one,
This work is very troublesome because the ends of the top of the furniture are fixed to the pillars and beams of the house using wood screws. In addition, depending on the indoor conditions, there may be no pillars or beams in a position that matches the installed furniture, which makes it difficult to use.

Further, when the furniture is moved, the metal fitting in the recessed place must be removed, which is troublesome. The present invention has been made in view of such a point,
It is an object of the present invention to make it possible to easily fix furniture in a fall-prevention state without screwing it to furniture, a pillar, a beam, a crosspiece, or the like in a room, and even if there is no pillar or the like.

[Invention of Claim 1]

[0005]

[Technical Means] A technical means of the present invention for solving the above-mentioned problem is to "install a leg seat perpendicular to one end of a hollow main shaft (1a).
(11) are connected in series, and a leg seat (12) is connected to the other end of the main shaft (1a) at a right angle to the tip of the auxiliary shaft (1b) coaxially and telescopically fixed. , Either the leg seat (11) or the leg seat (12) is rotatable relative to the main shaft (1a) or the sub shaft (1b) with which it is connected.

[0006]

The above technical means operates as follows. Pedestal (1
Place 1) alongside the top of the furniture and position it near the interior wall,
Align the seat (12) with the ceiling surface facing this top surface, and
The degree of fitting between (1a) and the counter shaft (1b) is adjusted. As a result, a repulsive force is applied between the ceiling and the top surface of the furniture via the leg seats (11) and (12) from the shaft portion including the main shaft (1a) and the sub shaft (1b).

Therefore, when the furniture is about to fall, a part of the top surface (inner wall surface side) tries to approach the ceiling side,
The repulsive force prevents this approach and prevents the furniture from falling over. The distance between the furniture and the ceiling varies depending on the conditions of the room and the furniture, but since the length of the shaft portion including the main shaft (1a) and the sub shaft (1b) is freely expandable and contractable, it is possible to meet various conditions.

Also, when mounting either the leg seat (11) or the leg seat (12), the leg seat (11) or the leg seat (12) is rotatable relative to the main shaft (1a) or the sub shaft (1b) with which it is connected. The leg seat (11) and the leg seat
After setting the predetermined posture of (12), the other posture can be adjusted, so that there is no concern that the leg seat (11) and the leg seat (12) in the mounted state become misaligned.

[0009]

[Effect] Since the fall prevention function is exhibited only by interposing it between the ceiling and the top surface of the furniture, the mounting work becomes very easy. Since the postures of the leg seats (11) and (12) are not uneven, there is no fear of impairing the exterior appearance of the room. Moreover, since the fall prevention tool is arranged along with the wall surface on which the furniture is installed, the appearance is less likely to be impaired in this respect as well.

[Other inventions] The invention according to claim 2 is the spindle.
(1a) and the auxiliary shaft (1b) have sufficient fixing strength at the fitting part and fine adjustment of the connection length is possible.The technical means adopted for this purpose is "main shaft (1a) ) Axis (1b)
The fitting part of is equipped with an adjustment fixing bolt (3) that screw-threads through the meat part of the main shaft (1a) in the radial direction, and the operating cylinder (2) is connected to the end of the main shaft (1a) in a cylindrical pair state. The operation tube (2) is inserted into and connected to the tube portion (13) protruding from the central portion of the leg seat (11) in a cylindrical state so as to have a movement allowance in the axial direction within a certain range. A biasing means is interposed between the bottom of the tubular portion (13) and the bottom of the operating barrel (2), and the operating barrel (2)
The adjusting bolt (21) fixed to the above is screwed into the screw portion (14) formed in the lid body closing the end of the main shaft (1a).

In this structure, the connecting length of the main shaft (1a) and the counter shaft (1b) can be adjusted mainly by the tightening position of the adjusting fixing bolt (3) with respect to the counter shaft (1b). Then tighten the adjustment fixing bolt (3) at the previously adjusted position,
The tip of the main shaft (1b) is pressed against the outer peripheral surface of the sub shaft (1b).
The position of the countershaft (1b) with respect to a) is fixed.

After that, in order to finely adjust the connecting length of the main shaft (1a) and the sub shaft (1b), the operation cylinder (2) is rotated to fit the main shaft (1a) and the operation cylinder (2). Adjust the degree. Counter shaft (1b) and operating tube
Since it is screwed with (2) through the adjusting bolt (21), the operating tube (2) is coupled to the tube portion (13) in a certain range with a certain axial movement allowance. Operation tube
The rotation of (2) adjusts the distance of the main shaft (1a) to the leg seat (11). As a result, after once mounted in the temporarily fixed state, the connection length between the main shaft (1a) and the sub shaft (1b) can be finely adjusted by rotating the operation tube (2).

Further, the repulsive force acting between the main shaft (1a) and the auxiliary shaft (1b) between the ceiling and the top surface of the furniture can also be adjusted, and the pressure contact force between the leg seat (11) and the furniture top surface and the leg seat can be adjusted. The pressure contact force between (12) and the ceiling surface can be adjusted according to the strength of each corresponding surface. Further, the operating cylinder (2) is acted on by the biasing means interposed between the operating cylinder (2) and the cylinder portion (13). Therefore, if furniture installed on the floor such as a tatami mat sinks after attaching the fall-prevention tool, depending on the movement allowance between the operation tube (2) and the tube part (13), Since the distance from the leg seat (12) is widened and the biasing force of the biasing means is applied, even if the furniture is sunk in this way, the fall prevention device does not fall down and safety is improved. improves.

[0014]

Embodiments of the present invention described above will now be described in detail with reference to the drawings. 1 to 3, the leg seat (11) and the leg seat (12) are configured in a vertically long rectangular plane shape, and the main shaft (1a) or the auxiliary shaft (1a) or the auxiliary shaft is formed in the center thereof. The shaft (1b) is connected.

The main shaft (1a) is cylindrical and is located on the top surface side of the furniture, and the sub shaft (1b) is slidably fitted on the upper end of the main shaft (1a). The upper end of the counter shaft (1b) is press-fitted and fixed to a cylindrical portion (15) formed at the center of the leg seat (12) and opened downward, and the whole is made of a metal tube and covered with a synthetic resin coating. A thick portion is formed at the upper end of the main shaft (1a), and a female screw portion is radially penetrated through the thick portion, and an adjustment fixing bolt (3) is screwed into the thick portion. This adjustment fixing bolt
The tip of (3) is a taper with an obtuse angle.

A cylindrical portion (13) is formed at the center of the upper surface of the leg seat (11), and a middle cylinder (16) projects from the center of the bottom portion thereof. Between the inner cylinder (16) and the inner circumference of the cylinder part (13), as shown in FIG.
The compression spring (B) is inserted. An operating cylinder (2) which is opened upward and which is fitted in a cylindrical pair state with the lower end of the main shaft (1a) is rotatably accommodated in the cylindrical part (13), and the upper part thereof is
It projects upward from the tubular portion (13). An operating portion (22) having continuous outer peripheral surface is formed at the protruding end.

At the center of the bottom of the operating tube (2), an adjusting bolt (2
1) is attached, and the operation tube (2)
It is screwed into the screw portion (14) provided on the lid at the lower end of b).
In order to fix the operation tube (2) and the adjustment bolt (21) to the leg seat (11) in a retaining state, the middle tube (16) is configured to open downward. A support cylinder (17) protruding from the bottom surface of the bottom of the cylinder (2) is fitted into the top opening of the middle cylinder (16). And, on one side of this penetrating part, a snap ring (23)
By installing a push nut (24) on the other side, the adjusting bolt (21) is fixed to the bottom of the operating tube (2), and the diameter of the push nut (24) is that of the middle tube (16). Since it is set larger than the top opening, the operation tube (2)
Also, the adjusting bolt (21) is attached to the leg seat (11) so as not to come off. The base end of the adjusting bolt (21) is fixed to the bottom of the operating tube (2) so that it cannot rotate relative to the bottom, but the operating tube (2) rotates relative to the tube (13). It is possible to move.

Further, a fixed space (for example, 10 mm) is set between the bottom of the operation cylinder (2) and the top of the middle cylinder (16) which is determined by the mounting position of the push nut (24). ing. Therefore, in the non-use state, the fall prevention tool of this embodiment has the bottom portion and the middle portion of the operation tube (2) as shown in FIG.
The space is created between the top of (16) and the urging force of the compression spring (B). The compression spring (B) is set to exert a biasing force of about 100 kg in the maximum compressed state and about 50 kg to 70 kg in the mounting length state.

The fall of furniture (K) at the time of an earthquake is effective if the initial shaking can be prevented. Therefore, the compression spring (B)
The urging force of can prevent the furniture from shaking. In addition, if the compression spring (B) is set to the maximum compression state at the time of installation, even if the furniture sinks for a certain period after installation, the axial direction of the operation tube (2) and the tube section (13) These fitting parts extend according to the movement allowance of the compression spring (B).
Is applied to maintain the leg seats (11) and (12) in contact with the furniture and the ceiling within the range of the urging force. Therefore, it is possible to absorb an increase in the distance between the furniture and the ceiling due to the sinking.

A pair of anti-slip rubber plates (18) and (18) are attached and fixed to the lower surface of the leg seat (11) and the upper surface of the leg seat (12), and are attached to the top surface or ceiling of the furniture. Installed leg seat (11), leg seat (1
2) is less slippery. In addition, the leg seat (1
Since 1) and the leg seat (12) have through holes (H) (H) at both ends in the longitudinal direction, use these through holes (H) to fix to furniture or ceiling surface with wood screws etc. It is also possible.

The fall prevention tool of this embodiment is used as shown in FIGS. In this use, loosen the adjustment fixing bolt (3) and then adjust the fitting degree of the counter shaft (1b) to adjust the connecting length of the main shaft (1a) and the counter shaft (1b).
In the shorter the eye than the distance between the top surface of the (K) and (K ₁₎ ceiling surface and (R), inserting the anti-tip device between the top surface (K ₁₎ and the ceiling surface (R). At this time, the leg seat (11) is located at the rear end of the furniture (near the interior wall surface), and the leg seat (12) is attached to the ceiling surface (R) above it.

After this, loosen the adjusting fixing bolt (3) and
By re-adjusting the connection length between (1a) and counter shaft (1b),
The pedestal (11) and the pedestal (12) are in contact with the surfaces facing each other. Then, the operation cylinder (2) is rotated to adjust the sub shaft (1b) so as to move upward with respect to the main shaft (1a). As a result, the distance between the lower surface of the leg seat (11) and the upper surface of the leg seat (12) is finely adjusted, and they are respectively brought into contact with the top surface (K ₁ ) or the ceiling surface (R) with a predetermined pressure.

Before the fine adjustment, the upper surface of the leg seat (12) may not contact the ceiling surface (R). At this time,
If the connecting portion between the main shaft (1a) and the leg seat (11) is simply fitted, it may wobble, but in this embodiment, the compression spring (B) causes the bottom portion of the operating tube (2) to move. Since it is pushed upward, the fitting posture of the operation tube (2) with respect to the tube portion (13) is stable. Therefore, since the straight state of the connecting portion between the leg seat (11) and the main shaft (1a) is stable, the mounting work is easy.

In addition, in this embodiment, since there is a certain gap between the operating cylinder (2) and the cylinder part (13), the lower surface of the leg seat (11) can be slightly inclined, so that the ceiling (R) And top of furniture (K) (K ₁ )
Even though and are not exactly parallel, each leg is attached to the ceiling (R) and top (K
It surely adheres to ₁ ), and the fall prevention effect is sure.

[Brief description of drawings]

FIG. 1 is a front view of an embodiment of the present invention.

[Figure 2] Side view

[Fig. 3] Vertical sectional view

FIG. 4 is an enlarged view of a fine adjustment mechanism section.

FIG. 5 is a front view of the usage state.

FIG. 6 is a side view thereof.

[Explanation of symbols]

 (1a) ・ ・ ・ Main shaft (11) ・ ・ ・ Leg seat (1b) ・ ・ ・ Spindle (12) ・ ・ ・ Leg seat (3) ・ ・ ・ Adjustment fixing bolt (2) ・ ・ ・ Operating cylinder (13) ) ・ ・ ・ Cylinder (21) ・ ・ ・ Adjusting bolt (14) ・ ・ ・ Screw

Claims (3)

[Claims] 1. A hollow main shaft (1a) is provided with a leg seat (11) connected to one end of the hollow main shaft (1a) at a right angle thereto, and a sub-portion inserted coaxially with the other end of the main shaft (1a) so as to be expandable and contractible. A leg seat (12) is connected to the tip of the shaft (1b) at a right angle thereto, and either the leg seat (11) or the leg seat (12) is connected to the main shaft (1a) or the auxiliary shaft. A furniture fall prevention tool that is rotatable relative to (1b). 2. An adjusting fixing bolt (3) for screwing a flesh portion of the main shaft (1a) in a radial direction is provided at a fitting portion of the sub shaft (1b) of the main shaft (1a). 1a) is fitted onto the operation tube (2) in a cylindrical pair state, and this operation tube (2) protrudes from the center of the leg seat (11).
3) is inserted and connected in a cylindrical state so as to have a certain range of movement in the axial direction, and an urging means is interposed between the bottom part of the cylinder part (13) and the bottom part of the operation cylinder (2). At the same time, the furniture according to claim 1, wherein the adjusting bolt (21) fixed to the operation tube (2) is screwed into a screw portion (14) formed in a lid body that closes the end of the main shaft (1a). Preventive device. 3. The furniture fall prevention tool according to claim 2, wherein a slight gap is provided between the outer peripheral surface of the operation cylinder (2) and the inner peripheral surface of the cylinder portion (13).