JP2008206716A - Furniture overturning prevention device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an furniture overturning prevention device which is adaptable to diversified conditions of the ceiling surface of a dwelling house and diversified shapes of top boards of furniture by making resisting forces work against intense three-dimensional forces and facilitate its installation on the top board surface of the furniture and the ceiling surface of the dwelling house with a lighter weight. <P>SOLUTION: The furniture overturning prevention device 1 comprises a central post 10 which is provided with the first top board pressing plate 18, the first ceiling pressing plate 16, the first freely stretchable post part 11 and the first intermediate support plate 17 and disposed at its central part and corner posts 20, 20, 20 and 20 which are provided respectively with the second top board pressing plate 28, the second ceiling pressing plate 26, the second freely stretchable post part 21 and the second intermediate support plate 27. A crossing brace 30 is so arranged between the central post 10 and the corner posts 20 as to cross the first brace 31 for connecting the first intermediate support plate 17 and the second top board pressing plate 28 and the second brace 32 for connecting the second intermediate support plate 27 and the first top board pressing plate 18. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a furniture overturn prevention device that effectively prevents the furniture from overturning.

  2. Description of the Related Art Conventionally, as a method for preventing the furniture from falling down, for example, at a business office, an L-shaped fixing bracket shown in Patent Document 1, for example, a wall or ceiling is provided with a mounting hole and fixed with bolts. Bolt fixing type is a tributary.

  Moreover, in general households, for example, the length adjustment shown in Patent Document 2 is possible, and a furniture fall prevention device called a tension rod is not screwed between the top plate of furniture and the ceiling of the house. A pole type that is installed in the gap between the furniture and the ceiling, presses both the furniture and the ceiling, and prevents the furniture from falling over is popular.

  As an improvement of the conventional technology, for example, as shown in Patent Literature 3, two or more jacks are arranged at regular intervals, and a storage space-equipped furniture fall prevention device with a storage space in the central space is provided. There is a rectangular parallelepiped gap furniture type installed in the gap between the furniture and the ceiling without screwing.

On the other hand, in recent years, it is important for corporations not to interrupt their business as much as possible when they encounter a major earthquake, and even if the business is unavoidably suspended, it will resume its business as soon as possible. Therefore, “Business Continuity Plan (BCP)” pursuing business continuity is being promoted. In particular, for large furniture, there is a high possibility that it will endanger the lives of employees, who are the key to business continuity. Therefore, the BCP guidelines recommend that it is important to take measures to prevent large furniture from falling. ing.
JP 2006-116127 A Japanese Unexamined Patent Publication No. Hei 8-242954 JP-A-2005-144109

  However, with the wall bolt fixed type, it is necessary to make anchors and other mounting holes in the wall and ceiling where the fixing brackets are mounted, and the wall and ceiling will be damaged, and the wall and ceiling can be fixed. There are various problems such as that there is no such thing and that it is difficult to attach the fixing brackets to the concrete floor surface in the case of the free access floor surface.

  In addition, the pole type is effective for vertical movement, but if a strong three-dimensional force such as a large earthquake is applied, the strut will fall off easily, causing it to fall over. There is a problem that the prevention function is not performed.

  Furthermore, in the gap furniture type where the furniture is placed on the furniture, since the fall prevention device is heavy, it is generally not easy to install in the gap between the furniture top plate and the ceiling of the house at a high position. There is a problem that it is not possible to cope with various conditions of the ceiling surface of the house and various top plate shapes of furniture, and it is necessary to select the size of the furniture to be mounted for each furniture to prevent falling .

  On the other hand, according to the “Research Results of the Investigation Committee on Prevention of Falling and Falling of Office Furniture and Home Appliances” issued by the Tokyo Fire Department in March 2006, rocking phenomenon occurs if the earthquake has a seismic intensity of 6 or higher. It has been reported that there is a risk of falling for the pole type and gap furniture type. Therefore, there is a current situation that there is no sufficient fall prevention device in terms of protecting human lives.

  The object of the present invention is to exert a resistance against a strong force in a three-dimensional direction, can cope with various states of the ceiling surface of the house and various top plate shapes of furniture, is lightweight, An object of the present invention is to provide a furniture overturn prevention device that can be easily installed on the top surface of furniture and the ceiling of a house without being screwed.

  In order to prevent the furniture from falling over in the event of a major earthquake, the inventors of the present invention have examined the commercial products in particular and sorted out the problems, and based on the following five conditions, the ceiling surface of the house and the furniture We designed furniture fall prevention device to be installed on the top of the floor. (1) Must have strength to withstand strong vibration. (2) It has a variable function of height corresponding to various environments. (3) It has a variable function that can be stored lightly so that it can be easily carried. (4) Do not damage furniture and houses, and (5) Target general furniture dimensions (1800 mm x 1140 mm x 30 mm).

  The inventors of the present invention have examined what is necessary to protect human lives, and have large furniture and office furniture that can withstand the severe data of the “Japan Architecture Center (BCJ)”. As a result of various studies and diligent efforts regarding the furniture overturn prevention device used in the present invention, the present invention has been completed.

  That is, the furniture overturn prevention device of the present invention includes a first top plate pressing plate that presses the top plate surface of furniture, a first ceiling pressing plate that presses the ceiling surface of a house, and the first ceiling plate. A first strut portion that fixes the plate pressing plate and the first ceiling pressing plate at both ends and is extendable and a first intermediate disposed at any position in the longitudinal direction of the first strut portion A central support column disposed in the central portion, a second top plate pressing plate for pressing the top surface of furniture, and a second ceiling pressing plate for pressing the ceiling surface of the house, The second top plate pressing plate and the second ceiling pressing plate are fixed to both ends, and the second column portion is made to be extendable and disposed at any position of the second column portion. Two intermediate support plates, and four corner posts arranged around the central support post, and between the central support post and the corner support posts, the first intermediate support plate and the A cross brace that intersects the first brace connecting the two top plate pressing plates and the second bracing connecting the second intermediate support plate and the first top plate pressing plate. It is characterized by being.

  In the furniture overturn prevention device of the present invention, for the four corner posts, the second intermediate support plate of the corner post and the second top plate pressing plate of the corner post closest to the corner post are connected. And adopting a configuration in which a fourth bracing is arranged in which the second brace that is connected to the second intermediate support plate of the corner post and the second top plate pressing plate of the corner post that is closest to the corner post. Can do.

  In the furniture overturn prevention device of the present invention, the cross section in the width direction of the first brace and the cross section in the width direction of the second brace are substantially U-shaped, and the back surface of the first brace and the first A configuration in which the back of the two braces intersects can be employed.

  In the furniture overturn prevention device of the present invention, the first brace and the first intermediate support plate, the first brace and the second top plate pressing plate, the second brace and the second intermediate plate The support plate, the second bracing, and the first top plate pressing plate can all be connected via a rod end.

  In the furniture overturn prevention device of the present invention, the third brace and the fourth brace can adopt a configuration in which a wire provided with a length adjuster is used.

  By using the furniture toppling prevention device of the present invention, not only in the vertical direction, but also in a strong case when a large-scale earthquake occurs or an unexpected accident in which force is instantaneously applied due to a person or object hitting it is strong Since it exhibits a resistance against a force in a three-dimensional direction, there is an advantage that furniture can be effectively prevented from falling. In addition, it can be said that the furniture fall prevention device of the present invention is epoch-making in terms of protecting human lives.

  The furniture fall prevention device of the present invention can cope with the environment of the place to be installed, i.e., various states of the ceiling surface of the house and various top plate shapes of the furniture, and after installation. It has the advantage of being able to cope with aging and having a high degree of freedom.

  Since the furniture fall prevention device of the present invention is lightweight, it can be easily installed in the gap between the furniture top plate and the ceiling of the house, and can be folded. There is also an advantage that it can be easily done.

  By using the furniture overturn prevention device of the present invention, there is also an advantage that the ceiling can be supported even when a large-scale earthquake occurs.

  Embodiments of the present invention will be described with reference to the drawings. The furniture overturn prevention device 1 of the present invention includes one central column 10 and four corner columns 20, 20, 20, 20.

  The central column 10 is disposed in the central part of the furniture overturn prevention device 1. The central column 10 includes a first top plate pressing plate 18, a first ceiling pressing plate 16, a first column unit 11, and a first intermediate support plate 17.

  The first top plate pressing plate 18 presses the top plate surface of the furniture. The furniture in the present invention includes all of what is generally called furniture. Specifically, for example, furniture (cupboards, chests, bookcases, chests, etc.), office furniture (lockers, etc.), home appliances ( Refrigerators, etc.). A clamp 19 c fixed to one end of the first support column 11 is attached to the upper surface of the first top plate pressing plate 18. For example, an adhesive, a peelable pressure-sensitive adhesive sheet, or a cushioning material having an adhesive effect may be inserted into the lower pressing surface of the first top plate pressing plate 18 so as to closely press the top plate surface of furniture. Well, in order to limit the buckling load generated in the hollow column and maintain the internal slidability, a gap material made of synthetic resin may be inserted. The first top plate pressing plate 18 may be provided with screw holes.

  The first ceiling pressing plate 16 presses the ceiling surface of the house. A clamp 19 a that is fixed to the other end of the first support column 11 is attached to the lower surface of the first ceiling pressing plate 16. For example, an adhesive, a peelable pressure-sensitive adhesive sheet, or a cushioning material having an adhesive effect may be inserted into the upper pressing surface of the first ceiling pressing plate 16 in order to press the ceiling surface of the house closely. In order to limit the buckling load generated in the support column and maintain the internal slidability, a resin gap material may be inserted. Unlike the first top plate pressing plate 18, the first ceiling pressing plate 16 may have a weak force for pressing the ceiling surface of the house.

  The first support column 11 corresponds to various states of the ceiling surface of the house where the furniture fall prevention device 1 is to be installed, and is configured to be stretchable in order to easily cope with secular changes after installation. . The stretchable structure of the first support column 11 may be a two-stage type or a three-stage type. In the case of the two-stage expansion / contraction structure, the first support column 11 includes, for example, a hollow first upper support 12 and a hollow first having an outer diameter slightly larger than the outer diameter of the first upper support 12. The lower support 14 and the first fixing tool 15a installed near the boundary between the first upper support 12 and the first lower support 14 are adjusted to a desired length by the first fixing tool 15a. (FIG. 1). In the case of a three-stage telescopic structure, the first support column 11 includes, for example, a hollow first upper support column 12 and a hollow body having an outer diameter slightly larger than the outer diameter of the first upper support column 12. The first middle strut 13, the hollow first lower strut 14 having an outer diameter slightly larger than the outer diameter of the first middle strut 13, and the boundary between the first upper strut 12 and the first middle strut 13 The first fixing tool 15a installed in the vicinity and the first fixing tool 15b installed in the vicinity of the boundary between the first middle strut 13 and the first lower strut 14 are configured. To adjust to the desired length (FIG. 2). As a method of adjusting and fixing the hollow support column to a desired length, for example, a method of using a split on the shaft of the hollow support column or a method of using a friction formula for increasing the surface pressure may be used. .

  The first intermediate support plate 17 is disposed at any position in the longitudinal direction of the first support column 11. The first intermediate support plate 17 is fixed at a predetermined position in the longitudinal direction of the first support column 11 by a clamp 19b attached to the lower surface.

  The corner struts 20, 20, 20, 20 are arranged around the central strut 10. The corner column 20 includes a second top plate pressing plate 28, a second ceiling pressing plate 26, a second column portion 21, and a second intermediate support plate 27.

  The second top plate pressing plate 28 presses the top surface of the furniture. A clamp 29 c fixed to one end of the second support column 21 is attached to the upper surface of the second top plate pressing plate 28. For example, an adhesive, a peelable pressure-sensitive adhesive sheet, or a cushioning material having an adhesive effect may be inserted into the lower pressing surface of the second top plate pressing plate 28 to closely press the top surface of furniture. Well, in order to limit the buckling load generated in the hollow column and maintain the internal slidability, a gap material made of synthetic resin may be inserted. The second top plate pressing plate 28 may be provided with screw holes.

  The second ceiling pressing plate 26 presses the ceiling surface of the house. A clamp 29 a fixed to the other end of the second support column 21 is attached to the lower surface of the second ceiling pressing plate 26. For example, an adhesive, a peelable pressure-sensitive adhesive sheet, or a buffer material having an adhesive effect may be inserted into the upper pressing surface of the second ceiling pressing plate 26 so as to closely press the ceiling surface of the house. In order to limit the buckling load generated in the support column and maintain the internal slidability, a resin gap material may be inserted. Unlike the second top plate pressing plate 28, the second ceiling pressing plate 26 may have a weak force for pressing the ceiling surface of the house.

  The second support column 21 corresponds to various states of the ceiling surface of the house where the furniture fall prevention device 1 is to be installed, and is configured to be stretchable in order to easily cope with a secular change after installation. . The telescopic structure of the second support column 21 may be a two-stage type or a three-stage type. In the case of the two-stage expansion / contraction structure, the second support column 21 includes, for example, a hollow second upper support 22 and a hollow second having an outer diameter slightly larger than the outer diameter of the second upper support 22. The lower support 24 and the second fixing tool 25a installed near the boundary between the second upper support 22 and the second lower support 24 are adjusted to a desired length by the second fixing tool 25a. (FIG. 1). In the case of a three-stage expansion / contraction structure, the second support column 21 includes, for example, a hollow second upper support 22 and a hollow having a diameter slightly larger than the outer diameter of the second upper support 22. The second middle strut 23, the hollow second lower strut 24 having an outer diameter slightly larger than the outer diameter of the second middle strut 23, and the boundary between the second upper strut 22 and the second middle strut 23 The second fixing tool 25a installed near the second fixing tool 25b installed near the boundary between the second middle support 23 and the second lower support 24, and the second fixing tools 25a and 25b. To adjust to the desired length (FIG. 2). As a method of adjusting and fixing the hollow support column to a desired length, for example, a method of using a split on the shaft of the hollow support column or a method of using a friction formula for increasing the surface pressure may be used. .

  The second intermediate support plate 27 is disposed at any position in the longitudinal direction of the second support column 21. The second intermediate support plate 27 is fixed at a predetermined position in the longitudinal direction of the second support column 21 by a clamp 29b attached to the lower surface.

  A first brace 31 in which the first intermediate support plate 17 and the second top plate pressing plate 28 are connected to the central column 10 and the corner column 20, and a second intermediate support plate 27 and the first top plate press. A cross brace 30 that intersects the second brace 32 connected to the plate 18 is disposed. Thereby, the action point of the load applied to the first brace 31 works near the center of the second top plate pressing plate 28, and the action point of the load applied to the second brace 32 is the first ceiling. It works near the center of the plate pressing plate 18.

  Here, since the furniture fall prevention device 1 is composed of one central column 10 and four corner columns 20, 20, 20, and 20, the central column 10 has four cross bars 30, 30, 30, 30 will be connected. These four crossing bars 30, 30, 30, and 30 do not cause the entire furniture toppling prevention apparatus 1 to shake in the same direction, and the lateral force acting in the direction of the opposite column and the top surface of the furniture. Since the drag is generated against the vertical force acting on the furniture, it effectively limits the tilting of the furniture.

  By making the cross section in the width direction of the first brace 31 and the cross section in the width direction of the second brace 32 substantially U-shaped, the back of the first brace 31 and the back of the second brace 32 intersect each other The torsional strength increases.

  In addition, by connecting the intersection of the first bracing 31 and the second bracing 32 with, for example, a rivet 33, the torsional strength is further increased, and the shift in the center direction of the shaft is eliminated. The method of connecting the intersections of the first bracing 31 and the second bracing 32 is not particularly limited as long as the intersection angle of the first bracing 31 and the second bracing 32 can be freely changed. , Rivet method, screwing, and fastening punch.

  The furniture fall prevention device 1 corresponds to various states of the ceiling surface of the house. For example, as shown in FIG. 3, even if the height of the ceiling of the house varies depending on the location, if the furniture toppling prevention device 1 is used, the central post 10 is set to a desired length and the first fixture 15a and the like, and the corner struts 20, 20, 20, and 20 are set to a desired length and fixed with the second fixtures 25a, 25a, 25a, 25a, etc. and the cross braces 30, 30, 30, 30 By changing the crossing angle, it can be installed between the ceiling surface of the house and the top surface of the furniture.

  The first brace 31 and the first intermediate support plate 17, the first brace 31 and the second top plate pressing plate 28, the second brace 32 and the second intermediate support plate 27, the second brace 32 and the first The top plate pressing plate 18 includes, for example, a spherical bush 35a having a spherical contact surface, a head fitting with the spherical bush 35a, a female screw portion on the inner diameter, and a lock nut 35b. It is preferable to connect via the rod end 35 comprised from the shaft-shaped attachment part.

  When the second brace 32 and the first top plate pressing plate 18 in the central column 10 are connected via the rod end 35, the spherical bush 35a moves freely, so that it moves in the horizontal direction ( 4 (a), (b), (c)), movement in the rotational direction (FIG. 5 (a), (b), (c)), and movement in the vertical direction (FIG. 6 (a)). ), (B), (c)), the three-dimensional direction change of the cross brace 30 can be performed, and the positions of the four corner struts 20, 20, 20, 20 can be changed. Therefore, it can be freely deformed in accordance with the top plate shape of the furniture, particularly the width of the top plate of the furniture. Further, when the first brace 31 and the first intermediate support plate 17 in the central column 10 are connected via the rod end 35, the first top plate press in the second brace 32 and the central column 10 is also used. The same effect as when the plate 18 is connected via the rod end 35 is produced. Therefore, as shown in FIG. 7 (a), when the shape of the top plate of the furniture is rectangular, even if the top plate has a different ratio between the long side and the short side, it can be sufficiently handled. As shown in b), even if the shape of the top plate of the furniture is an arc-shaped rectangle, it can be sufficiently handled.

  The first brace 31 and the second top plate pressing plate 28 in the corner post 20 are connected via the rod end 35, and the second brace 32 and the second intermediate support plate 27 in the corner post 20 are connected. When connected via the rod end 35, when the furniture overturn prevention device 1 is removed from the top surface of the furniture by changing the layout of the furniture or the like, the second top plate pressing plate 28 of the corner post 20 is removed. In consideration of the peeling characteristics of the tensile strength and shear strength of the adhesive sheet attached to the lower pressing surface, the horizontal surface of the spherical bush 35a described above can be obtained even if the rotational peeling method with the central axis of the corner post 20 as the rotation center is adopted. The movement in the direction and the movement in the vertical direction can be removed with little influence on the cross bar 30. Therefore, the connection via the rod end 35 to the second intermediate support plate 27 or the second top plate pressing plate 28 in the corner column 20 is particularly effective for office furniture whose layout changes are relatively frequent.

  As a method of connecting via the rod end 35, for example, the first top plate pressing plate 18, the first intermediate support plate 17, the second top plate pressing plate 28 or the second intermediate support plate 27 is internally threaded. After the hole is provided, the fixing bolt is inserted into the rod from the female screw hole provided in the first top plate pressing plate 18, the first intermediate support plate 17, the second top plate pressing plate 28 or the second intermediate support plate 27. The rod end 35 is screwed toward the female thread portion of the end 35 and the first top plate pressing plate 18, the first intermediate support plate 17, the second top plate pressing plate 28, or the second intermediate support plate 27. After that, the link node 34 provided at the tip of the first brace 31 or the second brace 32 and the spherical bush 35a of the rod end 35 are coupled by the pivot shaft pin 36 so as to be rotatable. It is done. In addition, after attaching the furniture fall prevention device 1 to the top plate surface of the furniture by the lock nut 35b, the horizontal rotation angle of the corner posts 20, 20, 20, 20 arranged at the four corners is 5 degrees. Will be able to limit within.

  For example, as shown in FIG. 8 (a), the four corner posts 20, 20, 20, 20 are the most from the second intermediate support plate 27 of the target corner post 20 and the target corner post 20. The wire connected to the second top plate pressing plate 28 of the near corner post 20, that is, the third brace 41, the second top plate pressing plate 28 of the target corner post 20 and the corner closest to the corner post. When a wire connected to the second intermediate support plate 27 of the column, that is, the fourth bracing 42 is arranged, the third bracing 41 and the fourth bracing 42 cause furniture generated by the behavior of furniture during an earthquake. The difference in force in the horizontal plane between the top plate of the roof and the ceiling of the house is limited to the direction of the wire tension, making it difficult to cause displacement in the diagonal direction, and more effective deformation of the furniture fall prevention device caused by the load during an earthquake Can be restricted. The connection method of the third bracing 41 or the fourth bracing 42 and the second intermediate support plate 27 or the second top plate pressing plate 28 is not particularly limited, and examples thereof include screwing. In addition, it is preferable to coat the wire with a synthetic resin, and the wire coated with the synthetic resin bites the length adjuster and exhibits higher holding ability.

  When the length adjuster 43 is provided in the third bracing 41 and the fourth bracing 42, the wire can be adjusted to an optimum length at the time of setting the furniture fall prevention device 1 or the like. . As the length adjuster 43, for example, as shown in FIG. 8 (b), a synthetic resin having a wire through hole penetrating in the longitudinal direction and having an outer peripheral surface tapered in a wire tension direction. Examples include a cylindrical male member manufactured, a female member having a fitting hole for fitting with the cylindrical male member, and a fixture that pivotally supports the female member. It is not limited.

  The furniture fall prevention device 1 can be folded, for example, as shown in FIG. 9 and can be easily moved because it is small in size.

The furniture overturn prevention device of the present invention does not cause the furniture to tilt with respect to the floor surface due to the rotational moment force for overturning the furniture caused by the force applied to the furniture and the building during an earthquake, for example. Demonstrates the effect of preventing falling. In the rocking phenomenon, the fall prevention control is possible by controlling the lateral force generated on the upper part of the furniture. When the furniture is installed on the wall side, the horizontal required force F to prevent rocking at the top of the furniture in the case of using the furniture-wall model where there is a wall surface that does not cause sliding lateral movement is: equation _(1): F = can be expressed by _{{K H · h- (1-} K V) · b} · W / q. Incidentally, K _H is seismic intensity in the horizontal direction by the earthquake motion, K _V is seismic vertical by ground motion, W is the weight of the furniture, b is the horizontal distance from the rocking center to the center of gravity, h is the center of gravity from the floor The distance, q, indicates the height from the floor to the furniture fixing part. The above-described formula (1) is a formula that is currently used as a basis for seismic design. In addition, during earthquake motion, distortion occurs on the ceiling and floor, and the force generated at this time must be considered as stress.

  The furniture overturn prevention device 1 of the present invention, for example, presses the top plate 60 of the furniture 70 with the first top plate pressing plate 18 and the second top plate pressing plates 28, 28, 28, 28, One central column 10 and four corner columns 20, 20, 20 are pressed against the ceiling 50 of the house by the first ceiling pressing plate 16 and the second ceiling pressing plates 26, 26, 26, 26. , 20 are installed on the top surface 60 of the furniture and the ceiling surface 50 of the house (FIG. 10). Here, it is desirable that the second top plate pressing plates 28, 28, 28, 28 be arranged as much as possible outside the top plate 60 of the furniture 70, that is, at the four corners. Further, it is desirable that the pressing is performed manually so that it acts on both the top plate 60 of the furniture 70 and the ceiling 50 of the house with the maximum force that does not affect the ceiling 50 of the house.

  After the furniture fall prevention device 1 of the present invention is installed on the top surface 60 of the furniture and the ceiling surface 50 of the house, the furniture 70 is not fixed to the floor 80 when a large-scale earthquake occurs. The force that restricts the lateral movement of the furniture 70 and the force due to the mass and acceleration of the heavy furniture 70 acts as a couple due to the frictional force between the furniture 70 and the floor 80, and the bottom surface of the furniture 70 (rectangular shape) However, the furniture 70 is likely to fall over, with the central column 10 and the four corner columns 20, 20, 20, 20 being used for the furniture by the rotation moment. Since the displacement amount of the distance between the top surface 60 and the ceiling surface 50 of the house is converted into a load on the ceiling surface 50 of the house, the furniture 70 can be effectively prevented from falling.

  Using the furniture overturn prevention device of the present invention shown in FIG. 1, a vibration experiment was performed based on the BCJ standard in an environment assuming an office environment. The vibration test was conducted in March 2006 by the Tokyo Fire Department, which was published in the “Results of Investigation by the Research Committee on Prevention and Falling Prevention of Office Furniture and Home Appliances”. This was performed in accordance with The ceiling was a plasterboard. The floor was P tile. The vibrating object was integrated office furniture with a total weight of 360 kg, including its own weight and weight. One first top plate pressing plate and four second top plate pressing plates are pressed against the top plate of the integrated office furniture, and one first ceiling pressing plate and four second top plates are mounted on the ceiling of the gypsum board. One central column and four corner columns were arranged to press the ceiling pressing plate. The pressing was done manually so that it exerts the maximum force that does not affect the ceiling and acts on both the furniture top and the house ceiling. The four second top plate pressing plates were arranged on the outer side as much as possible without departing from the top plate of the furniture. After that, a dynamic test was conducted by adding a Kobe Ocean Meteorological Typhoon (NS wave) to the Hyogoken-Nanbu Earthquake with a shaker, and the behavior of the vibrating object and the installation status of the equipment were confirmed visually.

  As a result, the visual behavior of the vibrating object was almost stable, and no deformation, damage or deviation of the fall prevention device was observed.

  As a result, it is clear that the furniture overturn prevention device of the present invention can withstand all the above-mentioned problems and withstands strong vibrations, and it is considered that the fundamental idea of the overturn prevention device has been overturned.

It is a perspective view showing the outline of one embodiment of furniture fall prevention of the present invention. It is a perspective view which shows the outline of other one Embodiment of furniture fall prevention of this invention. It is a front view which shows an example after installing one Embodiment of furniture fall prevention of this invention in the ceiling surface of a non-uniform house. (A) It is a top view which shows an example of the positional relationship of the 1st top plate press board used for furniture fall prevention of this invention, and a part of 2nd bracing, (b) 1st top plate press plate It is a top view which shows another example of the positional relationship with a part of 2nd bracing, and (c) Another example of the positional relationship between a 1st top-plate pressing board and a part of 2nd bracing FIG. (A) It is a side view which shows an example of the positional relationship of the 1st top plate press plate used for furniture fall prevention of this invention, and a part of 2nd bracing, (b) 1st top plate press plate It is a side view which shows another example of the positional relationship with a part of 2nd bracing, and (c) Another example of the positional relationship between a 1st top-plate pressing board and a part of 2nd bracing FIG. (A) It is a front view which shows an example of the positional relationship of the 1st top plate press plate used for furniture fall prevention of this invention, and a part of 2nd bracing, (b) 1st top plate press plate It is a front view which shows another example of the positional relationship with a part of 2nd bracing, and (c) Another example of the positional relationship between a 1st top-plate pressing board and a part of 2nd bracing FIG. (A) It is a top view which shows an example of the positional relationship of the center support | pillar and corner support used for furniture fall prevention of this invention, (b) The top view which shows another example of the positional relationship of a center support | pillar and a corner support It is. (A) It is a figure which shows an example of the corner support | pillar which has arrange | positioned the 3rd bracing and the 4th bracing used for the furniture fall prevention of this invention, (b) The length adjuster used for the furniture fall prevention of this invention It is a figure which shows an example. It is a perspective view which shows an example of the state which folded one Embodiment of furniture fall prevention of this invention. It is a perspective view which shows an example of the state which installed one embodiment of the furniture fall prevention of this invention in the ceiling surface of a house, and the top plate surface of furniture.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Furniture fall prevention apparatus 10 Center support | pillar 11 1st support | pillar part 12 1st upper support | pillar 13 1st middle support | pillar 14 1st lower support | pillar 15a, 15b 1st fixing tool 16 1st ceiling pressing board 17 1st One intermediate support plate 18 First top plate pressing plates 19a, 19b, 19c First clamp 20 Corner column 21 Second column 22 Second upper column 23 Second middle column 24 Second lower column 25a , 25b Second fixture 26 Second ceiling pressing plate 27 Second intermediate support plate 28 Second top plate pressing plates 29a, 29b, 29c Second clamp 30 Cross bracing 31 First bracing 32 Second Brace 33 Rivet 34 Link node 35 Rod end 35a Spherical bush 35b Lock nut 36 Rotating shaft pin 41 Third brace 42 Fourth brace 43 Length adjusting device 50 Ceiling surface 60 of house 60 Top plate surface 70 of furniture Furniture 0 Floor

Claims (5)

A first top plate pressing plate for pressing a top plate surface of furniture, a first ceiling pressing plate for pressing a ceiling surface of a house, the first top plate pressing plate, and the first ceiling pressing plate. A first support column that is fixed at both ends and is extendable and includes a first intermediate support plate that is disposed at any position in the longitudinal direction of the first support column, and is disposed at the center. One central column, a second top plate pressing plate that presses the top surface of furniture, a second ceiling pressing plate that presses the ceiling surface of the house, the second top plate pressing plate, and the first A second supporting column part that is fixed to both ends and is extendable and a second intermediate support plate that is disposed at any position of the second supporting column part; The first brace connecting the first intermediate support plate and the second top plate pressing plate between the central column and the corner column. If, furniture fall prevention device, characterized in that is obtained by placing a cross brace which crosses the second brace which connects the said second intermediate support plate and said first top plate pressing plate. The furniture toppling prevention device further connects, for the four corner posts, a second intermediate support plate of the corner post and a second top plate pressing plate of the corner post closest to the corner post. And a fourth brace connecting the second intermediate support plate of the corner post and the second top plate pressing plate of the corner post closest to the corner post. The furniture overturn prevention device according to claim 1. The cross section in the width direction of the first brace and the cross section in the width direction of the second brace are substantially U-shaped, and the back of the first brace and the back of the second brace intersect. The furniture overturn prevention device according to claim 1 or 2. The first brace and the first intermediate support plate, the first brace and the second top plate pressing plate, the second brace and the second intermediate support plate, the second brace and the above 4. The furniture overturn prevention device according to claim 1, wherein all of the first top plate pressing plates are connected via a rod end. 5. The furniture fall prevention device according to any one of claims 2 to 4, wherein the third bracing and the fourth bracing are wires each having a length adjuster.

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