JP2762392B2 - Furniture fall prevention device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fall prevention device for safely fixing various kinds of furniture which are likely to fall due to vibration caused by an earthquake or other sudden accident.

[0002]

2. Description of the Related Art Heretofore, various types of overturn prevention tools or devices of this type have been known.
There is a device like No.27. However, it is not always reliable in terms of completeness and safety, and the intended purpose has been achieved against vibrations caused by earthquakes, etc. due to breakage of the central shaft pipe or loosening of the tightening point There were drawbacks such as the inability to do so.

[0003]

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide an apparatus which is practically used without the above-mentioned situation during use.

[0004]

According to the present invention, a fixing nut is screwed into a lower end of a screw shaft erected at the center of a lower fixing base, and an adjusting nut is screwed into an intermediate portion. A cover branch pipe is inserted into an outer part, and at least a lower end of the cover branch pipe is formed in a shape to be engaged with the fixing nut. An ammunition is interposed between the lower end of the adjustment branch of the step and an upper end of the uppermost adjustment branch is fitted to a fixed branch protruding from the center of the upper fixed base.

[0005]

When the lower fixing base is to be fixed on the upper surface of the object, the lower end of the cover branch pipe is engaged with the inner fixing nut and rotated to fix the nut on the screw shaft. Engage the lower end of the cover branch with the nut and move up and down on the screw shaft,
The position is appropriately moved according to the length of the space between the connecting branch pipe and the ceiling surface.

When the position of the adjusting nut is almost determined,
The cover branch pipe is lowered to cover the screw shaft including the inner fixing nut and the adjustment nut.

Next, the first adjustment branch pipe is inserted so as to cover the screw shaft, the lower end of the first adjustment branch pipe is fitted inside the upper end of the cover branch pipe, and the lower end thereof is connected to the upper end of the adjustment nut. Abuts the upper surface of the interposed ammunition. Thereby, the next adjustment branch pipe is inserted and connected. The number of adjusting branch pipes to be connected is arbitrary.

[0008] After the connection of each adjusting branch pipe, the length adjustment between the furniture and the ceiling surface is performed by the above-mentioned bullet.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference numeral 1 denotes a screw shaft having a lower end fixed to the center of a lower fixed base 2 and standing upright. The lower end of the screw shaft is sandwiched between a lower fixed base 2 and fixed nuts 3 inside and outside. Screw 3 '.

Reference numeral 4 denotes an adjusting nut screwed onto the screw shaft 1.
A cover branch pipe 5 is provided on the outer side of the adjustment nut and the screw shaft 1.
Is fitted. At least the lower end 6 of the cover branch pipe 5 has a hexagonal shape, and the lower end 6 engages with the adjustment nut 4 or engages with the inner fixing nut 3.
The inner fixing nut 3 rotates together with the cover branch pipe 5 to be tightened. Therefore, no spanner is required. The adjusting nut 4 has a corner surface in contact with the inner surface of the cover branch pipe.

Reference numeral 7 denotes an ammunition installed above the adjusting nut 4 on the screw shaft 1. The upper end of the ammunition comes into contact with the lower end surface of the adjusting branch 8 to be described later. The upper end 5 ′ of the cover branch pipe 5 is squeezed inward, and its diameter is substantially equal to the outer diameter of the adjustment branch pipe 8 described later.

Reference numeral 8 denotes an adjustment branch connected to the upper side of the cover branch 5, and the length of the adjustment branch is set to another adjustment branch 1 described later.
It is good to prepare various things including 0.

Reference numeral 9 denotes an upper end portion of the adjusting branch tube 8. The diameter of the upper end portion is smaller than that of the main body portion so that the adjusting branch tube 8 can be easily fitted and connected.

Numeral 10 designates another adjusting branch in which the narrow upper end 9 of the adjusting branch 8 is fitted to the lower end. The diameter of the upper end 11 of this adjusting branch is smaller than that of its main body. Make it easier.

The connection between the upper and lower adjusting branch pipes may be connected to each other through a joint. Also,
The number of fitting and connection of the adjustment branch pipes is arbitrary, and after the connection, the length is adjusted by the position of the adjustment nut 4 and the elasticity of the elastic machine 7.

Reference numeral 12 denotes a narrow upper end 1 of the adjusting branch pipe 10.
Reference numeral 1 denotes a fixed branch pipe fitted to the lower end, and the upper end 13 of the fixed branch pipe is attached to the center of the upper fixed base 14 via the split pin 15. The means for attaching the upper fixed base may be a screw type using bolts and nuts.

Reference numeral 16 denotes a base shape of another example of the lower fixed base 2 or the upper fixed base 14, which has a mountain wave shape to exhibit an elastic effect of absorbing vibration.

Reference numeral 17 denotes a bellows-like 1 in the middle portion of the adjusting branch pipe.
8 shows another example of the adjusting branch pipe, which exerts an elastic effect of absorbing vibration. The bellows portion 18 may be provided at one place or two places.

[0019]

As described above, according to the present invention, the upright support force of the intermediate adjusting branch pipe is adjusted by the position of the adjusting nut and the elasticity of the elastic machine. In addition, the fixed support between the ceiling and the ceiling can be performed reliably and safely, and its connection and handling is simple, and its effect as a device to prevent furniture from falling over due to the intensity of vibration due to earthquake etc. It is big.

[Brief description of the drawings]

FIG. 1 is an overall exploded perspective view.

FIG. 2 is a front view of the entire use.

FIG. 3 is a front view of a main part cut away.

FIG. 4 is a partially cutaway front view of a base portion of another example.

FIG. 5 is a half-cut front view of another example of the adjusting branch section.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Screw shaft 2 Lower fixed base 3 Inner fixed nut 4 Adjustment nut 5 Cover branch 6 Hexagonal lower end 7 Ammunition 8 Adjustment branch 10 Other adjustment branch 12 Fixed branch 14 Upper fixed base

Claims (3)

(57) [Claims] 1. A fixing nut is screwed into a lower end portion of a screw shaft erected at a central portion of a lower fixing base, and an adjusting nut is screwed into an intermediate portion. A cover branch pipe is inserted into outer portions of both nuts. At least the lower end of the cover branch is formed in a shape to be engaged with the fixing nut, an arbitrary number of adjustment branches are connected to the upper side of the cover branch, and the adjustment nut and the lower end of the first stage adjustment branch are connected to the adjustment nut. A device for preventing furniture from overturning, in which an ammunition is interposed therebetween and the upper end of the uppermost adjusting branch is fitted to a fixed branch protruding from the center of the upper fixed base. 2. The furniture overturn prevention device according to claim 1, wherein the upper and lower fixed bases are formed in a mountain wave shape. 3. The furniture overturn prevention device according to claim 1, wherein the adjusting branch pipe has a bellows portion formed in the middle.