JP2012232087A - Device for preventing furniture from overturning - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device for preventing furniture from overturning that can be attached to furniture without being influenced by existence/non-existence of a beam for a ceiling or a wall and the height of the furniture and that requires no special tools nor experts when attaching to furniture and allows housewives to easily attach to furniture.SOLUTION: The device for preventing furniture from overturning includes furniture connection shafts 300 that have its lower end part mounted to swing to a floor connector 100 fixed on the floor and have its upper end part removably connected to a shaft connector 200 mounted on the rear face of furniture. The furniture connection shafts are an upper and lower division type, and an upper shaft 301 and a lower shaft 302 are connected by a connector 304 for adjusting the length. In an upper part of the upper shaft 301, a cylinder body 311 wherein a spring 313 is incorporated in an elongated state and a piston body 312 are provided. At the top of the cylinder body 311, a pin shaft 316 is installed in a protruding manner. A rock screw 317 is screwed to the pin shaft 316, to be turned into a connected part 310, and a fork arm 203 of the shaft connector 200 is held and fixed to the same.

Description

  The present invention relates to a fall prevention device for furniture such as a chest, a bookcase, and a cupboard.

  Especially in Japan, which is an earthquake-prone country, furniture such as chests, bookcases, cupboards, etc. must always have anti-falling measures as an indispensable item regardless of the degree of earthquake, that is, weak or strong.

Various devices have been developed as conventional techniques for preventing furniture from falling.
The conventional furniture fall prevention technology has mainly been a tension mechanism installed between the top of the furniture and the ceiling.
However, since the tension mechanism installed between the top of the furniture and the ceiling is high, installation and construction required specialized tools and workers. However, if matching with the position of the beam on the ceiling cannot be achieved, the arrangement of furniture must be changed forcibly. In some cases, there are no beams, and in such a case, it is impossible to adopt the mechanism, which is the worst. However, it is necessary to limit the height of the furniture to a lower one to reduce the degree of collapse damage.

  The present invention can be attached to furniture without the presence or absence of beams on the ceiling or wall and the height of the furniture, and does not require specialized tools and workers when installing. It is an object of the present invention to provide an excellent furniture fall prevention device that can be easily installed even by a housewife and can be installed permanently without impairing the function of the furniture as an interior.

The present invention satisfies the above-mentioned problems, and features thereof are as follows (1) to (2).
(1) It is installed on the floor where furniture is installed, and has a floor connector 100 that is fixed to the furniture installation floor where both lower side portions of the back side of the furniture are located, and the back side of the furniture And a furniture connecting shaft 300 which is attached to each of the upper both sides of the upper and lower sides of the upper and lower ends of the connecting connector 200 so that the lower end of the connecting connector 200 can swing and the upper end of the furniture connecting shaft 300 is detachably connected to the shaft attaching / detaching connector 200. A fall prevention device for furniture, characterized by having it.
(2) The furniture connecting shaft 300 is of a vertically divided type, and the upper shaft 301 and the lower shaft 302 are connected by a connecting tool 304 for adjusting the length. Prevention device.
(3) A to-be-connected tool 310 is provided on the upper shaft 301, and the to-be-connected tool 310 includes a cylinder body 311 and a piston body 312 that are mounted so as to be vertically slidable. A pin shaft 316 and a lock screw 317 screwed into the pin shaft 316 are projected, and a spring 313 for connecting the inside and the inserted piston main body 312 is built in an extended state. The upper shaft 301 is inserted and connected and fixed by a screw 319. A key groove 314 having a predetermined length is provided on the outer periphery of the piston main body 312, and the cylinder main body 311 is inserted into the key groove 314 to restrict the vertical movement of the cylinder main body 311. A lock pin 315 is provided, and the shaft attachment / detachment connector 200 is connected to a main body 201 to be attached to the back surface of furniture, and connected to the main body 201. A bifurcated arm 203 having an open part 202 for inserting and inserting the pin shaft 316 of the connected tool 310 from the left and right sides, and tightening a lock screw 317 of the pin shaft 316 inserted into the open part 202 and the top of the cylinder body 311 The apparatus according to (2) above, wherein the bifurcated arm 203 is sandwiched and fixed between the lock screws 317.
(4) The floor connector 100 includes a shaft attachment portion 103 that connects and supports the lower portion of the lower shaft 302 so as to be swingable, and a base portion 101 that threadably connects the coaxial attachment portion 103 to the flooring floor. It comprises a suction cup 110 for adsorbing and connecting the landing part 103 to the flooring floor via the sucker support 111, or a base part 112 having a U-shaped cross section for holding and connecting the axial attachment part 103 to the tatami type floor. The furniture fall prevention device according to (2) above

  The fall prevention device for furniture of the present invention according to the present invention is not affected by the presence or absence of beams on the ceiling or wall and the height of the furniture, and is not affected by the specifications of floors such as flooring and tatami. It is easy to install, and requires no special tools and workers for installation, and can be easily and easily installed by ordinary housewives. It is an excellent device that can be permanently installed without impairing

The front view of the fall prevention apparatus of the furniture of Example 1 (: direct attachment to a flooring) of this invention It is a top view from arrow AA of FIG. It is a side view from arrow BB of FIG. It is a top view from arrow CC of FIG. It is a side view which shows the one part modification shown in FIG. (: Suction board connection to flooring) FIG. 10 is a side view showing another modification of the part shown in FIG. 3. (: Directly attached to the tatami mat) It is explanatory drawing which expands and shows the to-be-connected tool 310 shown in FIG. 1 independently.

  The best mode for carrying out the present invention has the technical conditions described in the above features, and specific embodiments thereof will be introduced in detail in the following examples.

1 to 4, the furniture overturn prevention device of this example is installed on a so-called furniture installation floor such as a tatami mat or flooring on which furniture is installed.
The fall prevention device includes a floor connector 100 that is connected and fixed to a furniture installation floor on which both lower side portions on the back side of furniture are located, left and right side portions on the upper side on the back side of furniture, and both left and right sides in the center portion. The main components are a shaft attachment / detachment connector 200 that is connected and fixed to each other, and a furniture connection shaft 300 that is swingably attached to the floor connector 100 and has an upper end portion removably connected to the attachment / detachment connector 200. .

The furniture connecting shaft 300 is of a vertically divided type, and the upper shaft 301 and the lower shaft 302 are connected by a connecting tool 304 for adjusting the length comprising a pair of shaft insertion holes 304a and a fixing screw 304b.
A coupled tool 310 is attached to the upper portion of the upper shaft 301 as shown in FIG. The coupled tool 310 has a cylinder body 311 and a piston body 312 mounted so as to be slidable in the vertical direction. The cylinder body 311 has a pin shaft 316 and a lock screw 317 screwed into the pin shaft 316 projecting from the top. And a spring 313 for connecting the inserted piston in an extended state. The piston body 312 has a cylindrical body 318 at the lower portion, and the upper shaft 301 is inserted into the cylinder body 318 and connected and fixed by a screw 319. A key groove 314 having a predetermined length is provided on the outer periphery of the piston body 312. A lock pin 315 is provided which is inserted into 314 and restricts the vertical movement of the cylinder body 311.

The shaft attaching / detaching connector 200 on both the left and right sides of the upper part on the back side of the furniture forms an opening 202 for inserting and inserting the pin shaft 313 of the connected tool 310 from the left and right in the base part 201 attached to the back surface of the furniture. The pin shaft 313 is inserted into the open portion 204 from the left and right, and then the lock screw 314 is tightened to clamp the bifurcated arm 203 between the top of the cylinder body 311 and the lock screw 314.
The shaft attachment / detachment coupler 200 is also provided on both the left and right sides of the central portion on the back side of the furniture. This shaft attachment / detachment connector 200 has the same configuration as the shaft attachment / detachment connector 200 on the left and right sides of the upper part on the back side of the furniture described above, but fixes only the front / rear motion of the lower part of the upper shaft 301. It has a bifurcated arm 203 formed with an open portion 202 for inserting the lower portion of the upper shaft 301 from the left and right into a base portion 201 attached to the rear surface of the kind.

  The floor connector 100 is a direct attachment type when the floor is a flooring F as shown in FIGS. In this floor connector 100, a flat base 101 is directly screwed and fixed to a front portion of a flooring F with a screw 102, and a lower portion of a furniture connecting shaft 300 is pivotally attached to an upper portion so as to be able to swing left and right by a predetermined angle. A shaft attachment portion 103 is formed.

  FIG. 5 shows a modified example of the floor coupler 100. The floor coupler is a flooring F. The floor coupler 100 is connected to the surface of the flooring by a suction disk. The suction cup type floor connector 100 includes a suction cup 110 and a suction cup support 111 for connecting and supporting the suction cup 110 to the lower shaft 302.

FIG. 6 shows another modified example of the floor connector 100, in which the floor is a tatami T, and a U-shaped base section that is fixed in contact with the upper and lower surfaces and side surfaces of the side end of the tatami T. 112, and a shaft attachment portion 103 is formed on the upper portion to attach the lower portion of the lower shaft 302 so as to be swingable left and right by a predetermined angle.
When the floor is a tatami T, even if the tatami T is reduced in weight by the weight of furniture due to long-term use and the furniture falls, the initial position in the key groove 314 of the lock pin 315 of the connected tool 310 is set to the upper limit position. By making the descent operation free, the reduced thickness is absorbed by the restoring force of the extended spring 311 and the overall length of the furniture connecting shaft 300 is automatically changed to follow and fall down without lifting the back of the furniture. To prevent.
When the floor is flooring F, since there are almost no cases like the tatami mat T, the lock pin 315 of the coupled tool 310 prevents and fixes the vertical sliding movement between the cylinders.

Next, when furniture is arranged on the wall side of the flooring F, an example of a method for attaching a fall prevention device to furniture will be introduced next.
1. Step 1
The fall prevention device is set in advance on the wall side, and the furniture connecting shaft 300 has a lower floor connector 100 attached to the floor side of the flooring F so as to freely swing within a predetermined upward swing angle, and to the cylinder. While the lock pin 315 is positioned at the lower limit position of the keyway 314 by the contraction force of the spring 313 of the main body 311, the length of the furniture connecting shaft 300 is changed from the furniture height to the key by the connecting tool 304 for adjusting the length. The value obtained by subtracting the groove 314 is made close to the center of the wall. Further, the lock screw 317 of the pin shaft 316 is set in advance so that the bifurcated arm 205 is loosely positioned therebetween.
2. Step 2
Next, after the furniture is arranged on the wall side, the furniture connecting shaft 300 is rotated left and right from the central portion of the wall, and then the cylinder body 311 is locked until the lock pin 315 is positioned at the upper limit of the keyway 314. Next, the pin shaft 316 is inserted into the open portion 204 of the bifurcated arm 205 from the side thereof, and the lower shaft of the upper shaft 301 is attached to the middle portions on both sides of the furniture. Insert into the opening 204.
3. Step 3
Next, the locking screw 317 screwed to the pin shaft 316 of the coupled tool 310 is tightened, and the bifurcated arm 205 is sandwiched and fixed between the top of the cylinder body 311 and the locking screw 317.
Therefore, the furniture fall prevention devices are all located at the rear of the furniture so that the interior function of the hidden furniture is not damaged at all.
4). The furniture is stably supported by the two furniture connecting shafts 300 of the fall-preventing device according to the preceding item 3 with the rear portion being always pressed at a predetermined height according to the previous item 3.
5). In the case of an abnormal condition in which the furniture shakes due to external vibrations or vibrations in the state of the previous item 3, the swing is forcibly suppressed by the pulling force of the furniture connecting shaft 300 to prevent resonance, and the furniture posture is brought into a normal state in a short time. In particular, it is possible to reliably prevent a forward tilting in advance.
When the floor is a tatami mat, the tatami sinks due to the weight of the furniture, so that if the length of the furniture connecting shaft 300 is fixed, the furniture becomes an unstable forward leaning posture. However, the restoration of the spring 313 prevents this. By absorbing the sinking amount of furniture by force, it always keeps following furniture normally.
6). In addition, the fall prevention device of the present example can easily adjust the overall height (length) of the furniture connecting shaft 300 by the length adjusting connector 304 according to the height of the furniture. Therefore, the furniture can be easily and safely dealt with in a variety of shape specifications, such as being able to quickly and stably support the furniture.

  Since the present invention has the above-described excellent safety effects, it greatly contributes not only to producers in the furniture production industry but also to users who use them.

F flooring 203 bifurcated arm T tatami mat 300 furniture connecting shaft 100 floor connecting tool 301 upper shaft 101 base of floor connecting tool 302 lower shaft 102 screw 304 connecting tool for adjusting length 103 shaft mounting part 310 connected tool 110 sucker 311 cylinder Main body 111 Suction cup support 312 Piston main body 112 U-shaped base 313 Spring 200 Shaft attachment / detachment tool 314 Key groove 201 Base 316 Pin shaft 202 Opening portion 317 Lock screw 315 Lock pin for restricting vertical movement of cylinder main body

Claims (4)

  It is installed on the floor where the furniture is installed, and has a floor connector 100 that is fixed to the floor where the lower sides of the back side of the furniture are positioned, and both upper side parts on the back side of the furniture. And a furniture connecting shaft 300 for detachably connecting the lower end portion to the floor connecting device 100 and detachably connecting the upper end portion to the shaft attaching / detaching connector 200. The fall prevention device of furniture characterized by this.   2. The furniture overturn prevention device according to claim 1, wherein the furniture connecting shaft 300 is of a vertically divided type, and the upper shaft 301 and the lower shaft 302 are connected by a connecting tool 304 for adjusting the length.   A connected tool 310 is provided on the upper shaft 301, and the connected tool 310 has a cylinder body 311 and a piston body 312 that are mounted so as to be slidable up and down, and the cylinder body 311 has a pin shaft 316 at the top. And a lock screw 317 that is screwed to the piston body 312 and a spring 313 that is connected to the piston body 312 in an extended state. The piston body 312 has a cylindrical body 318 at the bottom, and the upper shaft 301 is inserted into the cylinder body 318. The cylinder body 311 is provided with a lock pin 315 that is inserted into the key groove 314 and restricts the vertical movement of the cylinder body 311. The shaft attachment / detachment coupler 200 is connected to the main body 201 to be attached to the back surface of the furniture, and to the coupled tool 310 connected thereto. And a bifurcated arm 203 having an open portion 202 into which the shaft 316 is inserted and removed from the left and right. A lock screw 317 of the pin shaft 316 inserted into the open portion 202 is tightened to fork between the top of the cylinder body 311 and the lock screw 317. The apparatus according to claim 2, wherein the arm 203 is clamped and fixed.   The floor connector 100 includes a shaft attachment portion 103 that connects and supports the lower portion of the lower shaft 302 in a swingable manner, and a base portion 101 that threadably connects the coaxial attachment portion 103 to the flooring floor. It is composed of a suction cup 110 that is adsorbed and connected to the flooring floor F via a suction cup support 111, or a base portion 112 having a U-shaped cross section that holds and connects the pivoting portion 103 with the tatami mat type floor T. The furniture overturn prevention device according to claim 2.

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