JPH08252140A - Furniture fall prevention equipment - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a furniture fall prevention device capable of stably preventing furniture fall due to effective tension. [Structure] Two flat plate portions 5, which are brought into contact with the ceiling side of a house and the roof side of furniture, are supported by height-adjustable legs 7. The leg portion 7 is inclined at an angle of approximately 4 ° with respect to the perpendicular of the contact surface 17 of the flat plate portion 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a furniture-type furniture fall prevention device which is arranged between a top plate of furniture and a ceiling of a house.

[0002]

2. Description of the Related Art Conventionally, various appliances have been proposed for preventing furniture from falling due to an earthquake or the like. As an example, Fig. 6 shows a furniture-type furniture overturning prevention device. Furniture fall prevention device (hereinafter simply referred to as "device") 71
Is composed of two flat plate portions 73 and a leg portion 75 which is adjustable in height for supporting the flat plate portion 73 and is perpendicular to the flat plate portion 73. By adjusting the height of the leg portions 75 so that the two flat plate portions 73 contact the top plate 83 of the furniture 81 and the ceiling 85 of the house, respectively, and by stretching the space between the top plates 83 and 85, the furniture 81 Is prevented from falling. In addition to this strut system, for example, a pulling system in which engaging devices are attached to the wall 90 and the furniture 81 and the furniture 81 to fall is pulled by the wall 90 side, or an L-shaped fixing device is used. Using furniture 81 as wall 90 or pillar (not shown)
There are fixed methods such as fixing to, but these other methods,
It is necessary to firmly attach the engaging device and the fixing device. On the other hand, in the strut type device 71, the wall is made of gypsum board, soil, thin plate, etc., and the pillar is not in an appropriate position, so that the engaging device and the fixing device are firmly attached. It can be used even when it is not easy, and it is relatively easy to install and remove the device.

[0003]

By the way, since the apparatus 71 of the staking method as shown in FIG. 6 tries to prevent the furniture 81 from falling over by only the stake in the direction perpendicular to the top plate 83, For example, in many cases, the effect on the horizontal movement of the furniture 81 that acts when the furniture 81 tries to fall forward (direction of arrow J) is not sufficient, and the furniture cannot be prevented from falling. was there. Further, the device 71 has a connecting portion 77 between the flat plate portion 73 and the leg portion 75.
However, there is a drawback that the connecting portion 77 is easily broken due to its structural weakness. The present invention has been conceived in view of such circumstances, and an object thereof is to provide a furniture overturning prevention device by a projecting method capable of stably preventing furniture overturning by strengthening the projecting force. Especially.

[0004]

In order to achieve the above object, a first invention is a projecting type furniture overturning prevention device arranged between a top plate of furniture and a ceiling of a house, Two flat plate portions that are in contact with the top plate and the ceiling are supported by leg portions whose heights are freely adjustable so that the contact surfaces are parallel to each other, and a support shaft for the leg portions is provided. Is a furniture overturning prevention device characterized by being inclined at a predetermined angle with respect to the perpendicular of the contact surface. A second aspect of the invention is a furniture fall prevention device in which at least one of the two flat plate portions is provided with a screw hole for fixing to the top plate and / or the ceiling. A third aspect of the present invention is a furniture fall prevention device, in which a reinforcing material that prevents the leg from falling is provided at a joint between the leg and the flat plate. A fourth aspect of the invention is a furniture fall prevention device in which a cushion material is provided on the contact surface of the flat plate portion. A fifth aspect of the present invention is a furniture fall prevention device in which the predetermined angle is approximately 4 °.

[0005]

According to the first aspect of the present invention, the support shaft of the leg is adjusted by adjusting the height of the leg while the two flat plates are in contact with the top plate of furniture and the ceiling of the house. Is stretched between the top plate and the ceiling in a state of being inclined at a predetermined angle with respect to the perpendicular of the contact surface. Therefore, if this furniture fall prevention device is arranged so that the direction of inclination of the legs matches the direction in which the furniture easily falls, a force component of the urging force in that direction acts, and the urging force itself also acts. Is larger than that in the case where it is perpendicular to the contact surface, it is possible to effectively prevent the furniture from toppling over. According to the second invention,
At least one of the two flat plates can be easily fixed to the top plate and / or the ceiling with screws. As a result, it is possible to prevent the furniture fall prevention device from being displaced even when vibration is applied. Therefore, it is possible to stably prevent furniture fall while maintaining an effective thrust force. You can According to the third aspect of the invention, since the reinforcing member is provided at the joint between the leg portion and the flat plate portion, the joint portion, which is structurally weak, is reinforced, and stable in a state where an effective thrust force is maintained. The furniture can be prevented from falling. According to the fourth invention, since the cushion member is provided on the contact surface of the flat plate portion, the friction coefficient on the contact surface is increased, and the effective thrust force can be stably maintained. The plate and ceiling will not be damaged by the flat plate part. According to the fifth aspect of the present invention, since the inclination angle of the support shaft of the leg portion is approximately 4 °, it is possible to prevent the furniture from falling over in a state in which an effective urging force works properly.

[0006]

Embodiments of the present invention will be described below with reference to the accompanying drawings for the understanding of the present invention. The following embodiments are examples of embodying the present invention and are not intended to limit the technical scope of the present invention.

FIG. 1 is an external perspective view showing the entire structure of a furniture-type furniture fall prevention device (hereinafter simply referred to as “device”) 1 according to an embodiment of the present invention, with a part thereof broken away. Instrument 1
Is composed of a pair of an upper body 3a and a lower body 3b. Since the upper body 3a and the lower body 3b are configured symmetrically, the respective parts of the two are denoted by the same reference numerals in the following description. Each of the upper body 3a and the lower body 3b includes a wooden flat plate portion 5 and a leg portion 7. The flat plate portion 5 of the upper body 3a is on the ceiling of the house,
The flat plate portions 5 of the lower body 3b are respectively brought into contact with the top plate of furniture. The height of the legs 7 can be freely adjusted, and the upper and lower flat plate portions 5
Are supported in parallel. The leg portion 7 includes a tubular portion 9 in which four plates are combined in a rectangular tubular shape, and a prismatic core portion 11 inserted and fixed in the tubular portion 9. In the inside 9a of the tubular portion 9,
A space into which two core parts 11 can be inserted is formed,
When the upper body 3a and the lower body 3b are paired and combined, one core part 11 is provided on one side of the inside 9a of the tubular part 9 so that the positions of the two core parts 11 are symmetric. It is stuck in. The height of the tube portion 9 is slightly lower than half the height of the core portion 11. The leg portion 7 is joined to the flat plate portion 5 while being inclined at a predetermined angle. Details of this inclination angle will be described later. The respective core portions 11 of the upper body 3a and the lower body 3b are inserted into one side of the opposing tubular portion 9 as shown by the chain double-dashed line. A screw hole 15 is formed in the core portion 11 at a predetermined location exposed from the tubular portion 9. In use, after the depth of insertion into the tube portion 9 of the core portion 11 is adjusted so that the two flat plate portions 5 come into contact with the ceiling and the top plate, the screw 16 is inserted into the screw hole 15 to make two Core 11
To fix. As a result, the height of the leg portion 7 is adjusted so as to stretch the space between the ceiling and the top plate.

On the contact surface 17 of the flat plate portion 5, there is provided a cushion material 19 for increasing the friction coefficient between the contact surface 17 and the ceiling and the top plate. This cushion material 19
Thereby, the appliance 1 can be stably arranged in a state where it is stretched between the ceiling and the top plate. Further, by providing the cushion material 19, it is possible to prevent the surfaces of the ceiling and the top plate from being damaged by the wooden flat plate portion 5. Further, the flat plate portion 5 is provided with a screw hole 21. This screw hole 21 is screw 23
Is used to fix the flat plate portion 5 to the ceiling and the top plate. In the figure, the screw holes 21 are provided at two locations on one side of the flat plate portion 5 where the leg portion 7 is sandwiched. However, the present invention is not limited to this, and the leg portion 7 is sandwiched between the two locations illustrated. They may be provided at two locations on the opposite side and fixed with screws. Furthermore, screw holes 21 are provided at a total of four places, that is, two places shown in the figure and two places on the opposite side, and all of them are fixed with screws, or, for example, if the ceiling side is a beam member, a top plate. On the side, one to three of the four screw holes 21 may be selected and screwed so that they can be screwed to the core material of the furniture. As the screw 23, it is preferable to use a tapping screw screw (long press screw) in order to prevent the wooden flat plate portion 5 from breaking easily and to firmly fix the wooden flat plate portion 5 at the contact destination.

In the portion 25 where the flat plate portion 5 and the leg portion 7 are joined (hereinafter referred to as "joint portion") 25, the leg portion 7 is reinforced on the side inclined at the above-mentioned predetermined angle and on the side opposite thereto. Materials 29a and 29b are attached. FIG. 2 is an external perspective view showing a usage example of the device 1. In the figure, the appliance 1 is mounted between the furniture 31 and the ceiling 33. Lower body 3
The flat plate part 5 of b is arranged on the top plate 35 of the furniture 31, and the height of the leg part 7 is adjusted in a state where the flat plate part 5 of the upper body 3 a is in contact with the ceiling 33. As a result, the top plate 35 and the ceiling 3
3 is stretched and the furniture 31 is prevented from falling.
In the illustrated example, the furniture 31 has a back surface on the wall 41,
The left side surface is arranged so as to face the wall 43. Therefore, in order to prevent the fall mainly in the forward direction (indicated by arrow A), the instrument 1 is mounted with the side where the leg portion 7 is inclined as the front. The relationship between the falling direction of furniture and the inclination of the legs 7 will be described later.

The flat plate portion 5 is fixed to the top plate 35 and the ceiling 33 by screws 23. In some cases, it is only necessary to screw one of the top plate 35 and the ceiling 33, or there is no need for screwing (when the distance between the top plate 35 and the ceiling 33 is extremely short). By the strut of the device 1,
The pressing force applied to each of the ceiling 33 and the top plate 35 is dispersed because the flat plate portion 5 is wide. Therefore, the leg 7
As compared with a case where such a columnar object is directly brought into contact with the ceiling 33 or the top plate 35, a problem that the ceiling 33 and / or the top plate 35 is locally damaged by a strong pressing force is generated. Hateful. Further, as shown in the figure, the flat plate portion 5 of the upper body 3a is preferably brought into contact with a portion of the ceiling 33 where a member having a certain thickness and strength such as the beam member 45 is arranged. In the instrument 1, since a member having a large area such as the flat plate portion 5 is brought into contact with the ceiling 33, there is an advantage that it is easy to make contact with the place where the beam 45 is arranged.

FIG. 3 is a schematic side view showing the action of the urging force of the instrument 1 in comparison with a conventional instrument, and FIG.
7 is a side view of the usage state of the device 1 of the present embodiment shown in FIG. 4, and FIG. 9B is a side view of the usage state of the conventional device 71 under the same conditions. In (a), what is indicated by a one-dot chain line is the center of gravity axis of the urging force of the device 1, which is hereinafter referred to as the support axis C. For reasons to be described later, the leg portion 7 is tilted so that the support shaft C forms an angle of 4 ° with the perpendicular of the contact surface 17. The top plate 3 of the tension force of this support shaft C
The points of action on the 5 side and the ceiling 33 side are a and b, respectively.
Shown in. Further, a point which is the center of the rotational movement of the furniture 31 when the furniture 31 falls is indicated by a point c at the lowermost end of the front portion. Similarly, in the conventional instrument 71 of (b), those corresponding to the support shaft C and the action points a and b of (a) above are the support shaft D and the action points d and e, respectively. The center point of rotation is indicated by a point c as in (a). Further, in order to make the comparison conditions the same, the operating point a of the instrument 1 and the operating point d of the instrument 71 on the top plate 35 are located at the same position.

When the furniture 31 is shaken back and forth, the furniture 31
Tries to fall around point c. At this time, furniture 3
The contact point a between the tool 1 and the device 1 is a₁Move on the locus of. On the other hand, vessels
Assuming that the tool 1 does not leave the ceiling 33,
Rotate. At that time, the contact point a with the top plate 35 of the device 1 is the device.
1 goes into furniture 31 as much as it is tilted a₂Locus of
It moves above, so that the furniture 31 and the appliance 1 come into contact with each other at the contact point a.
If the furniture 1 is about to fall down,₁,
a₂Distance g₁, The fixture 1 is on the ceiling 33 or furniture
You need to dig into 31. On the other hand, in the case of (b)
Is not attached because the device 1 is not tilted.
Contact point d along the top plate 35 of the furniture 31 (enter the furniture 31
Locus d) ₂The locus of the contact point d on the furniture side that moves above
d₁Is the same as in FIG. Therefore, the trajectory d ₁, D₂while
Distance g₂Is (as much as the instrument 31 is tilted) in (a)
Case distance g ₁Smaller than This is taken with the tool 1 tilted
In the conventional device 71 that cannot be attached, the device 71 is slightly
The furniture 31 can be rolled just by inserting it into the ceiling 33 or the furniture 35.
It means defeating. On the other hand, in (a)
In the instrument 1 that is attached at an angle according to this embodiment,
As the tilt angle θ increases, the fixture 1 moves toward the ceiling 33 or
Unless the house is deeply immersed in the furniture top 35,
This means that the tool 31 cannot fall. Instrument like this
As the thrust force of 1, the larger the inclination θ is, the larger the force is obtained.
However, in reality, the beam material increases as the contact b moves away from the wall 41.
As the deflection of 45 (see Fig. 2) increases, there is a limit to θ.
is there. In the experiment by the inventor, θ is preferably around 4 °,
Desirable was 4 °.

Referring to FIG. 4, the protrusion in this embodiment
The characteristic point of the action of force will be further described. Same figure
(A) and (b) are the same as FIG. 3 (a) and (b), respectively.
Of the device 1 of the present embodiment and the conventional device 71 in the use example
It is a typical side view. In order to facilitate the explanation,
Explanation is made assuming that the magnitude of the protrusion tension with the device 71 is the same.
Reveal Referring to (a), the thrust force C of the support shaft C
₀Is the point a₁Component C in the normal direction to the locus of₁And tangent
Component C in the direction₂Can be divided into On the other hand, refer to (b)
And the thrust force D of the support shaft D₀Is the point d₁Normal of the locus of
Directional force D₁And tangential component D ₂Can be divided into point
a₁On the locus of E, the falling force E of the furniture 31₁Works, as well
And point d₁Fall force H on the trajectory of₁Works. Falling power E₁
And fall force H₁And are the same in size. And above
Component force of component force C₂And component D₂And the falling force E₁
And fall force H₁It becomes a resistance against. As shown,
In the case of device 1, since the support axis C is inclined, the tangential direction
Directional component C₂Is the tangential component D of the device 71 ₂Greater than
Since it will be harder, it will effectively prevent the furniture 31 from falling over.
Can be stopped.

As described with reference to FIGS. 3 and 4,
In the appliance 1 of the present embodiment, the support shaft C is inclined to increase the urging force, and the component force of the urging force is strengthened in the falling direction to effectively prevent the furniture from falling. I am able to do it. Regarding the angle at which the legs 7 are tilted, as a result of considering the general structure of furniture, the distance between the top plate of furniture and the ceiling of the house, the size of the flat plate portion 5, the assembly cost of the appliance 1, etc. In the case of the device 1 shown in FIG.
It was judged that it is practically preferable to make an angle of 4 ° with the contact surface 17 of the flat plate portion 5. Furthermore, in the case of the present embodiment, by using wooden members for the leg portions 7 and the flat plate portion 5, it is possible to achieve an aesthetic harmony with general wooden furniture so that the device 1 can be worn without any discomfort. ing.

Next, a device 51 obtained by variously modifying the device 1 will be described with reference to FIG. The configuration of the device 1 is a practically desirable configuration example in consideration of the fall prevention effect, the assembly cost, and the like, but the following modifications may be added depending on the balance between the effect and the practicality. Instrument 5
Reference numeral 1 is formed by connecting and supporting an upper body 53a and a lower body 53b, which are formed by molding a hardened plastic, by a metallic core portion 64. Each of the upper body 53a and the lower body 53b is shown in FIG.
The flat plate portion 55 and the tubular portion 57 corresponding to the flat plate portion 5 and the tubular portion 7 of the device 1 are integrally formed. A part of the core portion 64 is inserted and fixed inside the tubular portion 57 of the upper body 53a, and the remaining portion is inserted into the tubular portion 57 of the lower body 53b. The upper body 53 can be adjusted by adjusting the insertion depth.
The height of the device 51 is adjusted so that the a and the lower body 53b come into contact with the ceiling 33 and the top plate 35, respectively. Normally, the upper body 53a and the lower body 53b are fixed to the ceiling 33 and the top plate 35 by screws 61. The tubular portion 57 on the lower body 53b side is provided with a stopper 59 for fixing the core portion 64. Also, the flat plate portion 5 of the device 1
Is a rectangle long in the direction of inclination of the leg 7,
The flat plate portion 55 of No. 1 has a square shape so that the device 51 does not easily fall down due to shaking in the lateral direction (arrow I). By doing so, the arrangement of the device 51 is more stabilized, and the number of cases where the fixing screw 61 is unnecessary is increased.

[0016]

As described above, the furniture fall prevention device according to the first aspect of the present invention can be used in a state where the support shaft of the leg portion is inclined at a predetermined angle with respect to the perpendicular of the contact surface. Since the top plate of the furniture and the ceiling of the house are stretched, if this furniture fall prevention device is placed so that the inclination direction of the legs matches the direction in which the furniture easily falls, the pulling force in that direction can be increased. The component force works strongly, and since the tension force itself is greater than when the legs are provided in the direction perpendicular to the contact surface, it is possible to effectively prevent the furniture from falling. According to the furniture fall prevention device of the second invention,
By fixing the flat plate to the top plate and / or the ceiling with a screw, even if vibration is applied, the position of the furniture is prevented from being displaced, and the stable tension of the furniture is maintained while maintaining an effective tension force. It is possible to prevent falls. According to the furniture overturning prevention device of the third aspect of the present invention, it is possible to prevent the structurally weak connecting portion between the leg portion and the flat plate portion from being easily damaged, and to stably fall over the furniture while maintaining an effective tension force. Can be prevented. According to the furniture fall prevention device of the fourth invention,
By increasing the friction coefficient on the abutment surface with the cushion material, an effective tension force can be maintained stably.
Also, the flat plate will not damage the top plate and ceiling. According to the furniture overturning prevention device of the fifth aspect of the present invention, it is possible to prevent the overturning of furniture in a state in which the effective supporting force is appropriately exerted by setting the inclination angle of the support shaft of the leg portion to approximately 4 °.

[Brief description of drawings]

FIG. 1 is an external perspective view showing a partially broken structure of a furniture fall prevention device according to an embodiment of the present invention.

FIG. 2 is an external perspective view showing a usage example of a furniture fall prevention device.

FIG. 3 is a schematic side view showing the action of a thrust force.

FIG. 4 is a schematic side view showing the action of a thrust force.

FIG. 5 is an external perspective view showing a modified example of the furniture fall prevention device.

FIG. 6 is an external perspective view showing an example of a conventional overhanging furniture fall prevention device.

[Explanation of symbols]

 1,51 ... Furniture fall prevention device 5,55 ... Flat plate portion 7,57 ... Leg portion 11,64 ... Core portion 21 ... Screw holes 29a, 29b ... Reinforcement material 17 ... Abutting surface 19 ... Cushion material

Claims (5)

[Claims] 1. A furniture-type furniture fall prevention device that is arranged between a top plate of furniture and a ceiling of a house, and has two flat plate portions that are in contact with the top plate and the ceiling, respectively. Is supported by legs whose height can be freely adjusted so that the contact surfaces are parallel, and the support shaft of the legs is inclined at a predetermined angle with respect to the normal to the contact surface. Furniture fall prevention device characterized by the following. 2. At least one of the two flat plate portions
The furniture fall prevention device according to claim 1, wherein a screw hole for fixing to the top plate and / or the ceiling is provided in one of them. 3. The furniture fall prevention device according to claim 1 or 2, wherein a reinforcing member for preventing the leg from collapsing is provided at a joint between the leg and the flat plate. 4. The furniture fall prevention device according to claim 1, wherein a cushioning material is provided on the contact surface of the flat plate portion. 5. The furniture fall prevention device according to claim 1, 2, 3 or 4, wherein the predetermined angle is approximately 4 °.