JP2007037990A - Furniture with quake absorbing function - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide furniture with quake absorbing function, which can absorb quake (rolling) during the earthquake effectively with its relatively simple structure. <P>SOLUTION: The furniture comprises the furniture body 1 with the base of the square outer shape and the floor plate 2 laid under the furniture body. On each of the four corners of the base 10 of the furniture body, a corner plate 11 is attached and on each of the corners of the upper surface 20 of the floor plate, a smoothing plate 21 with low friction resistance so that each corner plate 11 can slide against the smoothing plate 21, when the furniture body 1 is mounted on the floor plate. Furthermore, a slide limiting means 3 is proved between the base 10 of the furniture body and the upper surface 20 of the floor plate to prevent each corner plate 11 on the furniture body from coming off from each smoothing plate 21 on the floor plate. With such simple structure, the furniture can obtain optimal quake-absorbing effect. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to furniture that is mainly installed on a floor surface in a room and that has a seismic isolation function that can reduce the influence of vibration when an earthquake occurs. The furniture covered in this application includes wooden items used in homes such as chests and cupboards, and steel items such as document storage used in offices. is there.

  As a measure for preventing furniture overturning when a strong earthquake occurs, it has been generally performed to fix furniture to a floor surface or a wall surface using a fixing bracket. In general, this type of furniture fixing bracket is often attached to a floor surface or a wall surface with a screw.

  In addition, as a measure for preventing the furniture from falling, there is a conventional one in which casters (many of which use spheres) are attached to the lower four corners of the furniture so that the furniture can be moved relative to the floor surface. . In this furniture with casters, even if the floor surface shakes violently when an earthquake occurs, the following movement of the furniture is reduced, and the seismic isolation effect can be exhibited. In addition, as a well-known example provided with the seismic isolation device for furniture by this type of caster, there is one disclosed in Japanese Patent Application Laid-Open No. 2002-213530, for example.

JP 2002-213530 A

  By the way, if the furniture is fixed to the floor or wall using a fixture as described above, the furniture itself will not fall over even if a relatively strong earthquake occurs, but the furniture will vibrate with the floor of the house. Therefore, the problem remains that the items in the furniture are easily damaged due to falls, falls, collisions, and the like. In addition, the fixing bracket is often fixed to the floor or wall surface of the house by screwing, and when the furniture and the fixing bracket are removed, the screw hole marks remain on the floor surface or the wall surface, which makes it unsightly. is there.

  On the other hand, with a caster provided on the lower surface of the furniture so that the furniture can be moved relative to the floor surface by rolling, the seismic isolation function at the time of the earthquake will be high, but the furniture will be able to operate with a relatively small lateral pushing force. There is a problem that it moves carelessly. Moreover, in the furniture seismic isolation device of Patent Document 1, the movement is restricted by a spring in order to prevent the furniture from moving too lightly (unintentionally) by a caster. In this case, the spring and its attachment are attached. In addition to the need for members, the structure of the seismic isolation device as a whole is complicated.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a furniture with a seismic isolation function capable of effectively isolating the vibration (rolling) at the time of occurrence of an earthquake with a relatively simple structure.

  The present invention has the following configuration as means for solving the above problems. The present invention is directed to furniture with a seismic isolation function.

Invention of Claim 1 of the Present Invention The furniture with seismic isolation function of the invention of claim 1 of the present application is composed of a furniture body having a rectangular bottom surface shape and a floor plate laid on the lower part of the furniture body.

  The furniture body can be of any appropriate type and size as long as the bottom surface has a rectangular shape. For example, the furniture body may be wooden furniture or steel furniture in terms of material. For wooden furniture, for example, chests and cupboards (cabinets) can be adopted, and for steel furniture, for example, document storage Warehouses and steel shelves can be used.

  The floorboard is approximately the same shape and size as the outer shape of the bottom surface of the furniture body. Further, for example, a wooden plate or a plastic plate can be used as the floor plate.

  The furniture with seismic isolation function of the present application attaches corner plates to the four corners of the bottom surface of the furniture body, and attaches smooth plates with small frictional resistance to the four corner portions of the top surface of the floor plate, and the furniture body is placed on the floor plate. Each corner plate is slidable with respect to each smooth plate in the mounted state.

  Each corner plate on the bottom surface of the furniture main body has an appropriate shape such as a triangular shape, a quadrangular shape, and an L shape, and has a relatively small area. The material of each corner plate is not particularly limited, but is preferably made of resin (for example, fluorine-based or nylon-based) in order to make it easy to slide on the smooth plate. Each corner plate is attached such that the lower surface of the plate protrudes downward from the bottom surface of the furniture body by the thickness of the corner plate.

  Each of the smooth plates at the four corners of the top surface of the floor plate is made of a material having a low frictional resistance (for example, made of fluorine or nylon resin) and has a predetermined area. The smooth plate is necessary at the four corners of the top surface of the floor plate, but one plate having a size that can cover the entire surface of the top surface of the floor plate may be used, or it may be continuous 2 to the left or right or back and forth. You may arrange | position in the four corner part of a flooring board upper surface using the sheet-like long plate-shaped thing.

  When the furniture body is placed on the floor plate, each corner plate and each smooth plate can slide relative to each other in the horizontal plane when a strong earthquake (vibration) occurs.

  Furthermore, the furniture with seismic isolation function of the present application has a relative sliding between the furniture main body and the bottom plate so that each corner plate on the furniture main body side does not fall off on each smooth plate on the floor plate side between the bottom surface of the furniture main body and the top surface of the floor plate. Sliding range limiting means for limiting the range is provided.

  This sliding range limiting means allows the relative movement range of the furniture body and the floor plate only in a range where each corner plate does not fall off the smooth plate, and functions as a stopper. In addition, as this sliding range restriction | limiting means, what has an appropriate structure can be employ | adopted if it has said stopper function.

  In the furniture with seismic isolation function according to the first aspect of the present invention, a floor plate is placed at a predetermined position on the floor, and the furniture body is placed on the floor plate. In this installed state, the bottom surface outline of the furniture body and the floor board outline are the same shape and the same size, so the floor board outline does not protrude from the bottom outline of the furniture body. In this installed state, only the corner plates (four locations) on the furniture body side are in contact with the smooth plates on the floor plate side. Therefore, since the contact area between the bottom surface of the furniture body and the top surface of the floor plate is very small, and the top surface of each smooth plate has a small frictional resistance, the bottom surface of the furniture body (each corner plate) and the top surface of the floor plate (each smooth plate) Is in a state where it can slide moderately. The contact area between the bottom surface of the furniture body and the top surface of the floorboard is very small. However, if an article is stored in the furniture body, the overall weight on the furniture body side becomes considerably large, and the pressing force (or pulling force) during normal use is increased. Then the furniture body doesn't move carelessly.

  And when a strong earthquake occurs in the installation state of this seismic isolation function furniture, and the installation floor surface sways violently due to the strong vibration at that time, the floorboard will sway abruptly following the floor surface, but furniture Since the main body has a stationary inertia, the floorboard slides with respect to the furniture main body, so that the swing of the furniture main body is reduced and a so-called seismic isolation effect is exhibited. Further, in this furniture with seismic isolation function, the sliding range limiting means allows relative sliding between the furniture body and the floor plate only within a range where each corner plate on the bottom surface of the furniture body does not fall off from each smooth plate on the top surface of the floor plate. The furniture body (corner plate) can be prevented from falling off from the floor plate (smooth plate) while exhibiting the seismic isolation function.

The invention of claim 2 of the present application is the furniture with seismic isolation function according to claim 1 of the present invention, wherein the floorboard is fixed on the floor surface of the furniture installation position and between the bottom of the furniture body and the floorboard. In addition, a tilt prevention means for preventing the furniture body from tilting with respect to the top surface of the floorboard is provided.

  As a means for fixing the floor plate on the floor surface, for example, a plurality of gel sheets having an appropriate adhesive force are attached near the outer periphery of the lower surface of the floor plate, and the floor plate is fixed on the floor surface with each gel sheet. You can adopt things.

  The tilt prevention means prevents the furniture body from tilting with respect to the floorboard in a state in which the furniture body and the floorboard are relatively movable within a predetermined range as in claim 1. An engagement projection (for example, a stepped roller) projecting sideways is provided on the side of the furniture, while an annular step shelf that engages the engagement projection from the lower surface side is provided on the bottom surface of the furniture main body. It is possible to adopt a structure in which the shelf on the furniture body side is engaged with the engaging convex part on the floor plate in almost the entire relative movement range.

  By the way, if the height of the furniture body is high relative to the bottom area, the furniture body is tilted even if it has a seismic isolation function as in claim 1 when an earthquake with a large amplitude occurs. Such an action may work. Therefore, in the furniture with seismic isolation function according to claim 2, the tilt prevention means prevents the furniture body from tilting with respect to the floorboard, and the floorboard is fixed on the floor surface. It has a function to prevent.

Invention of Claim 3 In the invention of claim 3 of the present application, in the furniture with seismic isolation function of claim 1 or 2, a buffering coil spring is interposed between the bottom of the furniture body and the floorboard.

  This coil spring for buffering does not have a spring function or a pulling function when the furniture body is placed at a normal position (completely overlapped position) on the floorboard, and the furniture body moves horizontally from the normal position with respect to the floorboard. The spring function is exerted so as to urge the furniture main body toward the original position.

  This coil spring is installed mainly in a state of exerting a spring function in the front-rear direction with respect to the furniture body. Further, only one coil spring may be used, but a plurality (for example, two) may be used with an interval on the left and right. In addition, this coil spring may be installed in a state having a resilient function when compressed, or may be installed in a state having a pulling function when expanded, and further both compression and expansion are performed. Each of them may be installed with a spring function.

  If the coil spring for buffering is provided between the bottom of the furniture body and the floor board as in the furniture with seismic isolation function according to claim 3, a strong earthquake occurs and the relative movement between the furniture body and the floor board is intense. Even if it becomes, the buffering action of the coil spring works and the sliding range limiting means does not collide drastically.

Effect of the Invention of Claim 1 The furniture with seismic isolation function according to claim 1 of the present application is installed in a state where each corner plate at the bottom corner of the furniture body is placed on each smooth plate on the top surface of the floor plate. Then, although each corner plate on the furniture body side and each smooth plate on the floor plate side have a small area, they are in surface contact and have an appropriate frictional resistance. The furniture body does not move inadvertently in the normal usage range. On the other hand, when a strong earthquake (vibration) occurs, each corner plate on the furniture body side and each smooth plate on the floor board side slide relative to each other. become.

  Therefore, in the furniture with seismic isolation function of claim 1 of the present application, it can be used in a stable state normally, and when a strong earthquake occurs, the furniture body exhibits the seismic isolation function, so There is an effect that a function of preventing damage caused by falls, falls, collisions, etc. occurs.

  Further, in the furniture with seismic isolation function according to claim 1 of the present application, the relative movement range of the furniture main body and the floorboard is limited to a range in which each corner plate does not fall off from each smooth plate by the sliding range limiting means (stopper mechanism). Therefore, there is an effect that the furniture body can be prevented from falling off from the floor plate while ensuring the seismic isolation function as described above.

  Furthermore, in the furniture with seismic isolation function according to claim 1 of the present application, the corner plate is attached to each of the bottom corners of the furniture body, and the smooth plate is attached to each of the top corners of the floor plate. It has the effect of achieving both the seismic isolation function when an earthquake occurs.

Advantages of the Invention of Claim 2 In the invention of claim 2 of the present application, in the furniture with seismic isolation function of claim 1, the floor plate is fixed on the floor surface at the furniture installation position, and the furniture body is located on the top surface of the floor plate. Tilt prevention means for preventing tilting is provided.

  Therefore, in the furniture with the seismic isolation function of claim 2, in addition to the effect of the claim 1 (seismic isolation effect), the furniture body surely falls down by the tilt prevention means even if a strong earthquake (vibration) occurs. There is an effect that can be prevented.

Effect of the Invention of Claim 3 The invention of claim 3 of the present invention is the furniture with seismic isolation function according to claim 1 or 2, wherein a buffer coil spring is interposed between the bottom of the furniture body and the floor plate. .

  Therefore, in the furniture with seismic isolation function according to claim 3, in addition to the effect of claim 1 or 2, even if a strong (large amplitude) earthquake occurs and the relative movement between the furniture body and the floorboard becomes intense, Further, the shock absorbing effect of the coil spring provides a further seismic isolation effect, and there is an effect that the sliding range limiting means does not collide drastically and safety is further improved.

  The embodiment of the present application will be described with reference to FIGS. 1 to 12. FIGS. 1 to 10 show the first embodiment of the furniture with seismic isolation function corresponding to claims 1 to 2, and FIGS. FIG. 12 shows the furniture with seismic isolation function of the second embodiment corresponding to claim 3 of the present application.

1 to 10 The first embodiment of the furniture with seismic isolation function is a furniture body 1 having a rectangular bottom surface shape as shown in FIG. 1 and a floor plate 2 laid on the lower part of the furniture body 1. It consists of and. In this embodiment, wooden furniture such as a cupboard (cabinet) is adopted as the furniture with seismic isolation function.

  And this furniture with a seismic isolation function is used by installing the floor board 2 in a fixed state on the floor surface 8 and placing the furniture body 1 on the floor board 2 as shown in FIGS.

  The size of the furniture body 1 is not particularly limited. In this embodiment, the furniture body 1 has a horizontal width of 600 mm, a depth width of 460 mm, and a height of about 820 mm. In addition, the furniture body 1 of this embodiment is provided with a hinged door type storage portion at the upper and lower steps, respectively, and a sliding door type storage portion at the middle step.

  The lower part of the furniture body 1 is formed in a rectangular box shape with a front plate 12, left and right side plates 13, 14 and a rear plate 15. A thick plate-like reinforcing bar 16 is attached to the bottom of the furniture body 1 so as to straddle between the left and right side plates 13 and 14 at a position near the rear plate. The reinforcing bar 16 has a thickness of about 45 mm and a depth width of about 150 mm.

  Respectively small corner plates 11, 11,... Are attached to the four corners of the bottom surface 10 of the furniture body 1, respectively. In this embodiment, each corner plate 11, 11,... Has a substantially triangular shape and has a lateral width and a depth width of about 100 mm. The corner plate 11 may be a rectangular plate or an L plate in other embodiments.

  The lower surfaces of the corner plates 11, 11,... Protrude downward from the bottom surface 10 of the furniture main body by the plate thickness. When the furniture main body 1 is placed on a flat surface (the upper surface 20 of the flooring plate), each corner plate 11 , 11... Are in contact with the mounting surface. Each corner plate 11 is preferably made of a slippery material (for example, fluorine or nylon resin).

  The floorboard 2 has the same shape and size as the furniture main body bottom surface 10 (a square having a left-right width of 600 mm and a depth width of 460 mm). The floor plate 2 has a thickness of 20 mm.

  On the top surface 20 of the floor plate 2, smooth plates 21, 21,. Each of the smooth plates 21, 21,... Is made of a material having a low frictional resistance (for example, made of fluorine or nylon resin) and has a predetermined area (for example, a size of 150 mm × 150 mm). In this embodiment, four smooth plates 21, 21,... Are attached to the four corners of the floor plate upper surface 20, but in other embodiments, the entire surface of the floor plate upper surface 20 is covered with one sheet. The thing of the magnitude | size which can be coat | covered may be used, or you may use the thing of the shape of two long plates which continue in the left-right or front-back.

  The floor plate 2 is fixed on the floor surface 8 with adhesive sheets 5, 5. In this embodiment, the fixing points by the adhesive sheet 5 are implemented at a total of eight places, as shown in FIG. 5, including the four corners of the floor plate 2 and the middle part of each side. In addition, it is good to use this adhesive sheet 5 (for example, a gel sheet) whose adhesive force is not so strong in order not to leave the adhesion trace on the floor surface 8.

  As shown in FIG. 2 and FIG. 3, this furniture with seismic isolation function fixes the floor board 2 on the floor surface 8 with the adhesive sheets 5, 5... And places the furniture body 1 on the top of the floor board 2. Installed. In addition, this kind of furniture is installed close to the wall 9 as shown in FIG. In this installed state, the external shape of the bottom surface 10 of the furniture body does not protrude from the outer periphery of the top surface 20 of the floorboard, so that the appearance is good. In this installed state, each corner plate 11, 11,... Of the furniture body bottom surface 10 is placed on each smooth plate 21, 21,. .. And the smooth plates 21, 21... Can slide relative to each other in a horizontal plane. As shown in FIGS. 2 and 3, in a state where the furniture body 1 is placed at a normal position (completely overlapped position) on the floor board 2, the wall 9 is close to the rear surface of the furniture body 1 and will be described later. The tilt prevention means 4 (engagement between the stepped long hole 41 and the stepped roller 46) prevents the furniture body 1 from moving further with respect to the floor plate 2.

  In this furniture with seismic isolation function, the corner plates 11, 11... On the furniture body 1 side are the smooth plates 21, 21 on the floor board 2 side between the bottom surface 10 of the furniture body 1 and the upper surface 20 of the floor board 2. ..A sliding range limiting means 3 for preventing the furniture body 1 from falling off and a tilt preventing means 4 for preventing the furniture body 1 from tilting with respect to the floor board 2.

  In this embodiment, the sliding range limiting means 3 has a horizontally long and small stopper material 31 (about 30 mm) attached to a substantially central portion in the depth direction of the top surface 20 of the floor plate. The stopper material 31 is provided with cushioning materials 32, 32,. And in the state which mounted the furniture main body 1 in the normal position on the flooring board 2, as shown in FIG. 6, between the rear surface of the stopper material 31 (front end surface of the rear surface buffer material 32), and the front surface 16a of the reinforcement bar | burr 16 And the left and right side surfaces of the stopper material 31 (the front end surfaces of the left and right side cushioning materials 32 and 32) and the inner surfaces of the left and right side plates 13 and 14, respectively. , Each has a space of dimension M (M = 15 mm).

  The sliding range limiting means 3 limits the relative movement range between the furniture body 1 and the floor board 2 as follows.

  First, in the front-rear direction, as shown in FIG. 6, the furniture body 1 is shown in a solid line and a chain line (reference numeral 1 '), that is, the front surface 16a of the reinforcing bar 16 is indicated by a chain line (reference numeral 16a'). Further, it can move within a range of dimension L (L = 60 mm) until it abuts against the stopper material 31 (rear cushioning material 32). Even when the furniture main body 1 is moved to the front side with respect to the floor plate 2 maximally, each corner plate 11 on the furniture main body 1 side advances only to the position indicated by reference numeral 11 ′. The corner plates 11, 11,... Do not fall off the smooth plates 21, 21,.

  On the other hand, in the left-right direction, as shown in FIG. 8, the position (reference numeral 13 ′) where the inner surface of the left side plate 13 of the furniture body 1 abuts the left end surface of the stopper material 31 (the front end surface of the left side cushioning material 32). ) And the position where the inner surface of the right side plate 14 of the furniture body 1 abuts on the right end surface of the stopper member 31 (the front end surface of the right side cushioning member 32) (the position indicated by reference numeral 14 ') (2M) = 30 mm). And in the movable range of the left-right direction, each corner plate 11,11 ... will not drop off from each smooth plate 21,21 ... on the flooring board 2 side.

  The tilt prevention means 4 includes left and right stepped long holes 41 and 41 provided in the reinforcing bar 16 of the furniture body 1 and left and right stepped rollers 46 and 46 provided in the upper surface 20 of the floor plate 2. Yes.

  Two stepped long holes 41 are provided at two positions obtained by dividing the left-right width of the furniture body 1 in the reinforcing bar 16 into three equal parts. And this stepped long hole 41 is an oval whose depth direction is slightly longer than the left-right direction, as shown in an enlarged view in FIG. 4, and has a small diameter hole 42 on the lower side and a large diameter hole 43 on the upper side. An annular step shelf surface 44 is provided at the boundary. In addition, the short diameter width W (FIG. 4) of the small diameter hole 42 of the stepped long hole 41 is 60 mm, and the large diameter hole 43 is larger than the inner surface of the small diameter hole 42 by about 15 mm over the entire circumference.

  The stepped rollers 46 and 46 are provided in a vertical posture at two positions corresponding to the stepped long holes 41 and 41 on the floor top surface 20. As shown in the enlarged view of FIG. 4, the stepped roller 46 supports a two-stage roller having a small diameter portion 47 on the lower side and a large diameter portion 48 on the upper side so as to be rotatable on the top surface 20 of the floor plate by a shaft 49. . The diameter of the small diameter portion 47 of the stepped roller 46 is 30 mm, and the diameter of the large diameter portion 48 is 50 mm.

  And in order to unite these tilt prevention means 4 and 4 (the stepped long hole 41 and the stepped roller 46), the large diameter part 48 of the stepped roller 46 is made into the stepped long hole 41 as shown in FIG. The roller large-diameter portion 48 can be positioned at the height of the large-diameter hole 43 through the small-diameter hole 42 while being aligned with the small-diameter hole 42.

  The front-rear positional relationship between the stepped long holes 41, 41 and the stepped rollers 46, 46 is as follows. In the state where the outer shape of the bottom surface 10 of the furniture body is completely overlapped with the outer shape of the floor plate 2, as shown by the solid line in FIG. The large-diameter portions 48, 48 of the attached rollers 46, 46 are in positions to be engaged with the front end side shelf surfaces 44, 44 of the stepped long holes 41, 41, respectively. When the furniture body 1 is moved to the foremost position with respect to the floor plate 2 as shown by a chain line in FIG. 6 (reference numeral 1 ′), each stepped elongated hole is indicated by a chain line (reference numerals 41 ′ and 41 ′). It moves to a position, and each roller large diameter part 48 and 48 comes to engage on the rear end side shelf surfaces 44 and 44 of each stepped long hole 41 and 41, respectively.

  Further, as shown in FIG. 8, when the furniture body 1 moves to the left or right with respect to the floor plate 2, the large diameter portions 48, 48 of the stepped rollers 46, 46 are formed in the stepped long holes 41, 41. It engages on the shelf surfaces 44, 44 on either the left or right side.

  Accordingly, when the furniture body 1 and the floorboard 2 move relative to each other in the event of an earthquake, the large diameter portions 48, 48 of the stepped rollers 46, 46 are in the state of the stepped long holes 41, 41 in most states. The step shelf surfaces 44 and 44 of the stepped long holes 41 and 41 are stepped even when the furniture body 1 is tilted by the vibration and is engaged with any position on the surfaces 44 and 44. By engaging the large-diameter portions 48, 48 of the rollers 46, 46 from below, the furniture body 1 can be reliably prevented from falling.

  As described above, the furniture with seismic isolation function of the first embodiment is installed by fixing the floor board 2 on the floor surface 8 with the adhesive sheet 5 and placing the furniture body 1 on the floor board 2. In the installed state, the corner plates 11, 11... On the bottom surface 10 of the furniture body are placed on the smooth plates 21, 21. In this installed state, as shown in FIG. 6, the stepped long hole 41 and the stepped roller 46 of the tilt prevention means 4 are in an engaged state.

  When a strong earthquake occurs in this installed state, each of the corner plates 11, 11... And each of the smooth plates 21, 21. It moves relative to each other, and a seismic isolation function for the furniture body 1 occurs. That is, a phenomenon that the swing of the furniture body 1 becomes small for the magnitude of the earthquake (vibration) appears. Further, the relative movement range between the furniture body 1 and the floorboard 2 is limited to a range in which each corner plate 11 does not fall off from the smooth plate 21 by the sliding range limiting means 3, so that the furniture exhibits a seismic isolation function. It is possible to prevent the main body 1 from dropping off from the floor plate 2.

  Note that the relative movement direction of the furniture body 1 and the floorboard 2 at the time of the earthquake is not limited to simple movements such as the front-rear direction in FIG. 6 and the left-right direction in FIG. 8, but for example, as shown in FIG. Although the floor plate 2 may be relatively displaced in the rotational direction, the stopper function of the sliding range limiting means 3 works before any of the corner plates 11, 11,. Thus, the relative movement range between the furniture body 1 and the floorboard 2 is restricted.

  In addition, when a more intense vibration occurs and the action of tilting the furniture body 1 works, the tilt prevention means 4 and 4 work to lock the furniture body 1 on the floor board 2 while the floor board. Since 2 is being fixed on the floor surface 8, the trouble that the furniture main body 1 falls together with the flooring board 2 can be eliminated.

11 and FIG. 12 The basic structure of the furniture with seismic isolation function of the second embodiment of the second embodiment is the same as that of the first embodiment, and FIG. 11 corresponds to FIG. 3 of the first embodiment. FIG. 12 corresponds to FIG. In addition, in the furniture with a seismic isolation function of the second embodiment, the same reference numerals as those of the first embodiment are the same as those portions of the first embodiment, and their configuration and The description of the function uses the one of the first embodiment.

  In the furniture with seismic isolation function of the second embodiment, buffer coil springs 6 and 6 are interposed between the bottom of the furniture body 1 and the floor plate 2. That is, in the second embodiment, the coil springs 6 and 6 are interposed at two left and right positions between the reinforcing bar 16 provided at the bottom of the furniture body 1 and the stopper material 31 provided on the floor plate 2, respectively.

  Each of the coil springs 6 and 6 does not have a spring function or a pulling function when the furniture body 1 is placed at a normal position (completely superposed position) on the floor board 2, but the furniture body 1 is not attached to the floor board 2. Thus, when moving forward from the normal position (or when the floor board 2 moves backward with respect to the furniture body 1), the coil springs 6 and 6 are compressed to exhibit a resilient function.

  Incidentally, in the furniture with seismic isolation function of this embodiment, as shown in FIGS. 11 and 12, when the furniture body 1 is placed at a normal position on the floor plate 2, the stepped roller 46 has a stepped long hole 41. The furniture body 1 cannot move further backward with respect to the floor board 2. Therefore, in this embodiment, the furniture body 1 can only move forward from the normal position with respect to the floor board 2.

  Then, in the furniture with seismic isolation function of the second embodiment, when a strong earthquake occurs and the furniture body 1 and the floorboard 2 move relative back and forth, and the coil springs 6 and 6 are compressed, the coils A springing function is generated in the springs 6 and 6, and a further seismic isolation effect is exerted on the furniture body 1. In addition, due to the buffering function of the coil springs 6 and 6, a sudden collision between the stopper material 31 on the floor plate 2 side and the reinforcing bar 16 on the furniture body 1 side can be avoided.

  In another embodiment, the coil springs 6 and 6 are installed between the stopper member 31 and the front plate 12 of the furniture body 1 so that the furniture body 1 moves forward from the normal position with respect to the floor plate 2 ( Alternatively, when the floor plate 2 moves backward with respect to the furniture body 1, the coil springs 6 and 6 may be extended to exhibit a pulling function.

It is a perspective view of the state which isolate | separated the furniture main body and floorboard of the furniture with a seismic isolation function of this application 1st Example. It is a front view of the installation state of the furniture with a seismic isolation function of FIG. FIG. 3 is a side view of FIG. 2. It is an expansion perspective view of the tilt prevention means used for the furniture with a seismic isolation function of FIG. It is explanatory drawing at the time of the assembly of the furniture with a seismic isolation function of FIG. FIG. 6 is a cross-sectional view corresponding to VI-VI in FIG. 2. FIG. 7 is a cross-sectional view corresponding to VII-VII in FIG. 6. It is explanatory drawing at the time of the left-right movement from the state of FIG. It is the IX-IX cross section equivalent figure of FIG. FIG. 7 is a state diagram when the furniture body moves in the rotation direction from the installation state of FIG. 6. It is a side view (figure 3 equivalent figure) of the furniture with a seismic isolation function of this-application 2nd Example. It is a XII-XII cross-section equivalent figure of FIG.

Explanation of symbols

  1 is a furniture body, 2 is a floor plate, 3 is a sliding range limiting means, 4 is a tilt prevention means, 5 is an adhesive sheet, 6 is a coil spring, 8 is a floor surface, 10 is a bottom surface of the furniture body, 11 is a corner plate, 16 Reinforcing bars, 20 is an upper surface of the floor plate, 21 is a smooth plate, 31 is a stopper material, 41 is a stepped long hole, and 46 is a stepped roller.

Claims (3)

A furniture body (1) having a rectangular bottom surface and a floor plate (2) laid on the lower part of the furniture body (1) and having the same shape and size as the shape of the bottom surface (10) of the furniture body,
The corner plates (11, 11,...) Are respectively attached to the four corner portions of the bottom surface (10) of the furniture body (1), and the smooth plates having a small frictional resistance are respectively provided to the four corner portions of the upper surface (20) of the floor plate (2). (21) is attached so that each corner plate (11) and each smooth plate (21) can slide relative to each other in a state in which the furniture body (1) is placed on the floor plate (2). With
The furniture body (1) is provided so that each corner plate (11) on the furniture body side does not fall from each smooth plate (21) on the floor board side between the bottom surface (10) of the furniture body and the top surface (20) of the floor board. And a sliding range limiting means (3) for limiting the relative sliding range of the floorboard (2),
This is a furniture with seismic isolation function. The floorboard (2) is fixed on the floor surface (8) at the furniture installation position, and the furniture body (1) is placed on the floorboard upper surface (20) between the bottom of the furniture body (1) and the floorboard (2). A tilt prevention means (4) for preventing tilting with respect to the
The furniture with seismic isolation function according to claim 1. A buffer spring (6, 6) is interposed between the bottom of the furniture body (1) and the floor plate (2).
The furniture with seismic isolation function according to claim 1 or 2.

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