JPH03206260A - Earthquake insulating floor member - Google Patents

Abstract

PURPOSE:To sharply insulate vibration and swing transmitted to an underfloor ground by intercoupling the bottom part of a main operation recessed part and the lower end of a resilient member so that the lower end thereof is freely movable in the direction of radiation within a range of a regulation round hole centering around the center of the bottom part. CONSTITUTION:A main operation recessed part 2 being the operation region of a resilient member 13 is formed in the central part of a base member 1. An auxiliary operation part 3 rising along an upper peripheral wall and a slide flange part 4 extending from the upper end of an inner wall in the direction of radiation are formed. A base plate member 10 is placed on an upper surface, and a coupling column body 11 is formed on an under surface in a position where the inner side thereof is positioned facing the inner wall of the auxiliary motion part 3. The resilient member 13 is coupled to the lower part thereof, and a plurality of resilient legs 9 are disposed to the lower part of the member 1. During the occurrence of an earthquake, vibration is ensured within expansion and contraction of the resilient member 13. When a very strong earthquake occurs, vibration is resiliently regulated through operation of a regulating member located between the peripheral side of the coupling column body 11 and the peripheral wall of the auxiliary operation part 3, and in vertical vibration, earthquake insulating operation is ensured through expansion and contraction of the resilient legs 9.

Description

Detailed Description of the Invention [Industrial Field of Application] The present invention relates to a floor in which a large number of decorative materials are arranged in series on a subfloor surface, and various decorative materials are subsequently or previously arranged thereon to form a floor. The present invention relates to a seismic isolation floor member, which is a type of member and can attenuate earthquakes and other vibrations or rocking.

[Jubei's technology] Conventional seismic isolation means basically support the floor by
It has been proposed that legs are formed at the bottom of a plate and rubber is attached to the lower ends of these legs.

[Problems to be Solved by the Invention] As mentioned above, the conventional seismic isolation means simply attaches rubber to the lower ends of the legs that support the planks, so the floor constructed using this means does not have a satisfactory isolation structure. It is not something that can produce a seismic effect.

The present invention relates to a floor member that constitutes the floor of a building by laying or pasting a decorative material on the upper surface, and which has a high seismic isolation effect against vibrations and rocking in the horizontal and vertical directions. The purpose is to provide

[Means for Solving the Problems] The gist of the configuration of the present invention is that a circular main movement recess is formed in the center of the base member from a plane that is the movement area of the elastic member described later, and the main movement A sleeve auxiliary movement part is formed on the upper outer periphery of the recessed part, and includes a ring-shaped sliding surface and a peripheral wall raised up from the outer periphery, and a slide collar part is formed that extends in a radial direction from the upper end of the peripheral wall of the auxiliary movement part. A board member is slidably placed on the upper surface of the sliding flange of the base member, and a coupled cylindrical body is placed on the lower surface of the board member so that its peripheral side faces the peripheral wall of the auxiliary operation section. and when the connecting cylindrical body attempts to exceed the range of the main operating recess due to relative radial movement between the peripheral wall of the auxiliary operating part and the circumferential side of the connecting cylindrical body; A regulating member is provided to elastically regulate further relative movement in the radial direction, and the base member and the substrate member are connected so that the lower end is at the bottom of the main operation recess of the base member and the upper end is at the bottom of the main operation recess of the base member. The bottom part of the main operation recess and the bottom end of the elastic member are connected to the lower part of the coupling cylindrical body by respective elastic members, and the bottom end of the elastic member is connected to a regulating circle centered on the center of the bottom part. This seismic isolation floor member is configured to be able to move freely only in the radial direction within the range of the hole, and further includes a plurality of elastic legs arranged at the bottom of the base member.

The diameter of the bottom of the main operation recess is preferably determined in consideration of how much horizontal amplitude can be tolerated during an earthquake or the like.

When configuring the peripheral wall of the main operation recess mentioned above to have a tapered shape, it is also good to determine the opening angle from the same point of view. If possible, in the event of the largest anticipated earthquake, when the lower end of the elastic member undergoes a relative rocking motion in the opposite horizontal direction, the side part of the elastic member should be easily attached to the inner periphery of the main operating recess. It is best to set it so that it does not come into contact with the

Further, it is appropriate that the base member is reinforced by forming a plurality of ribs extending in a radial direction from the outer periphery of a protrusion that bulges out at the bottom, which is the back side of the main operation recess. The upper portions of the plurality of ribs are of course integrally connected to the lower surface of the slide flange.

Furthermore, it is appropriate that the slide flange is formed into an annular shape when viewed from above.

The substrate member is suitable for attaching a decorative material of the same size to its upper surface, or for laying a decorative material on its upper surface after installing the seismic isolation floor member. for example,
It can be constructed from plastic or wooden boards. It is appropriate for the planar shape to be a square when viewed from above for the purpose of use.

A freely slidable connection between the sliding flange and the substrate member can be ensured by a free configuration. for example,
This can be achieved by making each joint surface smooth by coating the surface with tetrafluoroethylene resin, etc. Alternatively, it can be realized by a configuration in which a plurality of balls are rotatably disposed on either the upper surface of the slide collar or the lower surface of the substrate member, and the other facing surface is joined to the plurality of balls.

The regulating member may be configured, for example, as a tire tube-shaped member that is wrapped around the circumference of the coupled cylindrical body. Alternatively, it may be constructed of an annular tube slidably disposed on the sliding surface of the auxiliary operating section, and a spring interposed between the outer periphery of the annular tube and the peripheral wall of the auxiliary operating section.

The elastic member may be made of a material having appropriate elasticity and may have an appropriate shape. For example, it is a bar-shaped or column-shaped member with suitable coupling means at its upper and lower ends. Alternatively, a columnar elastic body is formed at a position corresponding to the diameter of the ring-shaped elastic body, and a columnar elastic body is formed at a position corresponding to both ends of the columnar elastic body.
As in the above example, each member is provided with appropriate coupling means. It is preferable that the ring-shaped elastic body is configured to be slightly thinner on both sides. Still another example is a member having a configuration in which the columnar elastic body is removed from the above member. Alternatively, as a more preferred example, the elastic member can be constructed as a hollow ball provided with suitable coupling means on the upper and lower sides. This hollow ball is naturally made of a suitable elastic material.

At the bottom of the main operation recess, for example, a regulating circular hole with an inwardly protruding stopper flange is provided on the upper edge, and on the other hand, as a means for connecting the lower end of the elastic member, a diameter of the regulating circular hole is used as a means for connecting the lower end of the elastic member. Attach a connecting disk configured to have a smaller diameter, insert this connecting disk into the regulating hole from the back side of the main operation recess,
By being engaged with the retaining collar, the lower end of the elastic member is coupled so as to be movable only in the radial direction within the regulating hole.

For example, when the elastic legs are formed with ribs on the back surface of the base member as described above, mounting holes are provided in the ribs, and the elastic legs made of a suitable elastic material are mounted in the ribs to hold the elastic legs. can be entered.

[Function] Since the present invention is configured as described above, in various buildings, a plurality of them can be arranged in series on the subfloor, and then or in advance, a decorative material can be arranged on the upper surface of the substrate member. According to
The floor can be easily constructed, and the floor can attenuate vibrations or shaking caused by earthquakes or the like transmitted to the subfloor.

These seismic isolation floor members can be easily used in buildings by constructing a flat subfloor in the required area, arranging them in succession on the subfloor, and pasting or laying a decorative material on the top surface or in advance. floor can be constructed.

It is assumed that a slight gap is left at the outer edge of the area where the seismic isolation floor member is installed, that is, at a position adjacent to a wall surface, etc., and a cushion member, for example, is placed in that gap. Alternatively, in the event of an earthquake or the like, it is appropriate to arrange an auxiliary plate at the above position near the outer edge of the base member and decorative material of the seismic isolation floor member so that it can move forward and backward under the base member.

According to the seismic isolation floor member of the present invention, the seismic isolation floor can be extremely easily constructed at a required position.

In addition, when a floor is constituted by this seismic isolation floor member in this manner, even when vibrations are transmitted to the subfloor due to an earthquake or the like, the seismic isolation effect can be performed very efficiently.

In the case of a relatively small earthquake, the horizontal shaking is
In the case of the main shaking, the lower end of the elastic member can move freely in the horizontal radial direction relative to the bottom of the main movement recess of the base member within the limits of the regulation circular hole. Since the base plate member slides relatively freely on the slide flange in response to this, an almost perfect seismic isolation effect can be obtained. If the swing becomes larger than this and the lower end of the elastic member comes into contact with the periphery of the regulating hole due to horizontal radial movement, the lower end of the elastic member will move further in the radial direction. The movement of the base member is restricted, and as a result, the relative rocking of the base member on the slide flange beyond this can be performed within the range of the elastic elasticity of the elastic member. In this way, when the swing is small, the lower end of the elastic member can freely move in the horizontal radial direction within the regulating hole, so that the free sliding movement on the sliding flange of the substrate member is not restricted, and If the swing is large and the lower end of the elastic member tries to move beyond the regulation range, the lower end of the elastic member will be limited to the regulation circular hole and will move freely on the sliding flange of the base plate member. The sliding movement can be performed within the range of elasticity of the elastic member. However, in either case, a sufficient seismic isolation effect can be obtained.

Furthermore, in the case of an extremely large earthquake, the large shaking will cause an extremely large relative movement of the base member in the radial direction, and the elastic member will be stretched to the maximum extent, causing the coupling cylinder to move into the main operating recess. This leads to trying to go beyond the scope. In this case, a regulating member is disposed between the circumferential side of the coupled columnar body and the circumferential wall of the auxiliary operation portion to elastically regulate further relative movement in the radial direction. As a result of this action, movement that attempts to exceed that range is gently regulated. Therefore, even in the event of an earthquake near the limit of the damping effect of this seismic isolation floor member, the damping effect will not be lost immediately, but will gradually decrease. Therefore, the adverse effects of changes in acceleration on people, objects, etc. on the floor supported by this seismic isolation floor member can be reduced.

If, for example, one of the various effective sliding means described above is provided between the base member and the sliding flange, the seismic isolation effect described above can be achieved very effectively.

Furthermore, against vibrations in the vertical direction, seismic isolation is ensured by the elastic expansion and contraction action in the axial direction of the elastic legs placed at the bottom of the base member. These elastic legs also contribute to improving the feeling of walking on the floor. [Embodiment 1] An embodiment of the present invention will be described below based on the drawings.

As shown in FIG. 1, a main operation recess 2 that expands upward is formed in the center of the base member 1, and an annular slide surface 3a and an annular slide surface 3a are formed on the upper outer peripheral edge of the main operation recess 2. An auxiliary operating section 3 is constituted by a circumferential wall 3b raised on the periphery, and an annular slide collar section 4 extending radially from the upper end of the circumferential wall 3b of the auxiliary operating section 3 is constituted. The upper surface of the slide collar portion 4 is configured to be a smooth surface.

As shown in FIGS. 1 and 3, a regulating circular hole 5 is bored at the bottom of the main operation recess 2, and a retaining collar 6 is made to project inward from the upper edge of the inner periphery.

Further, the main operation recess 2 is provided on the lower surface side of the base member l.
As shown in FIGS. 1 and 3, ribs 7a. . 7a...
, 7b, 7b... are configured. Said rib 7a. 7a・
. . constitutes two ribs integrally, and the rib 7b. 7b... is composed of only one line. Either slide flange 4
, hangs down from the slide surface 3a of the auxiliary operation part 3 and the lower surface of the main operation recess 2, and its lower end is at the same height as the lower end of the circumference of the regulating circular hole 5 formed on the lower surface of the protrusion. Moreover, each of the above-mentioned ribs 7a. A leg support part 8 is provided at the lower outer end of each of the parts 7a..., and an approximately gourd-shaped elastic leg 9 is provided in each of these support holes.
Insert and hold.

Further, a substrate member 10 is slidably placed on the upper surface of the slide collar portion 4 of the base member 1.

The substrate member 10 is a square plate material when viewed from above,
At the center of the lower part, a connecting cylinder l1 is formed to hang down. As shown in FIG. 1, the length of the coupling cylindrical body 11 is determined so that its lower end is located at a position slightly higher than the sliding surface 3a of the auxiliary operating section 3. Further, a circular recess is formed at the center of the lower end of the coupling cylindrical body 11, and a female screw 12 is formed through the center thereof to the upper surface of the substrate member 10 itself.

The base member l and the substrate member 10 are elastic members l.
Combined by 3.

As particularly shown in FIG. 1, the elastic member 13 is basically constituted by a hollow ball-shaped elastic body l4, with a lower coupling disc l5 fixed to one of its diametrically opposite ends, and an upper surface to the other. Fix the upper coupling disk l7 with the male screw 16 erected in the center. The diameter of the lower coupling disk 15 is determined so that it is smaller in diameter than the regulation circular hole 5 and larger than the inner diameter of the retaining collar 6. Further, the upper coupling disk 17 is configured to have a smaller diameter than the inner diameter of the retaining collar 6.

Therefore, the elastic member 13 passes through the inner side of the retaining collar 6 of the base member 1, and connects the male screw l6 and the upper coupling disc l.
7 and the hollow ball-shaped elastic body 14 are inserted into the main operation recess 2, and the lower coupling disk 15 at the lower end is locked with the retaining collar 6. Furthermore, the male screw l6 of the upper coupling disk l7 is screwed into the female screw l2. The hollow ball-shaped elastic body 14 can be pulled in the direction of both ends to release the retaining collar 6.
The diameter is such that it can pass through the inside of the

In this way, the base member 1 and the substrate member 10 are connected to the elastic member l.
3 will be combined.

Further, on the sliding surface 3a of the auxiliary operation section 3, as shown in FIGS. 1 and 2, an annular tube 18 having a square cross section is slidably arranged. The above circular tube 1
8 has an outer diameter smaller than the diameter of the peripheral wall 3b. Further, the height is made to match the height of the peripheral wall 3b of the auxiliary operation section 3. The annular tube 18 is not only slidably disposed on the slide surface 3a as described above, but also slidable on the lower surface of the substrate member 10. Further, springs 19, 19, . . . are arranged at angular intervals of 60 degrees between the outer periphery of the annular tube 18 and the inner surface of the peripheral wall 3b.

Further, in this example, a decorative material 20 is attached to the upper surface of the substrate member 10 in advance.

In this actual journey example, the structure as described above is useful for configuring the floors of various buildings to have the function of attenuating earthquakes and other shaking. Moreover, it is easy to install. First, a flat subfloor 2l is constructed in the area where the floor is to be constructed, as in the general case. This seismic isolation floor member may be arranged in series on the floor base 2l that is configured flat as described above. That is, with the lower surface side of the base member l facing down, adjacent seismic isolation floor members are connected to each other with the base member 10
They may be laid on the subfloor 2l with their sides in contact with each other. The work is completed when the entire target area is covered in this way.

Note that a slight gap is left at the outer edge of the installation area of the seismic isolation floor member, that is, at a position adjacent to a wall surface, etc., and at that position, in the event of an earthquake, the substrate member 10 and the decorative material 20 are placed under the base member 10 and the decorative material 20.
We will install an auxiliary plate that allows the area near the outer edge to move forward and backward. Therefore, the seismic isolation floor member of this embodiment can be extremely easily installed in a required position to form a floor.

Furthermore, when a floor is constructed using this seismic isolation floor member in this manner, even when vibrations are transmitted to the subfloor 21 due to an earthquake or the like, the seismic isolation effect can be performed very efficiently.

In the case of a relatively small earthquake, the horizontal shaking is
In the case where the vibration is the main shaking component, the lower coupling disk l5 of the elastic member l3 is relatively free to move in the horizontal radial direction within the limits of the regulation circular hole 5 formed at the bottom of the main movement recess 2. Correspondingly, the base plate member 10 relatively slides on the slide flange 4, so that an almost perfect seismic isolation effect can be obtained. Further, the swinging becomes larger than this, and the lower coupling disk 15 of the elastic member 13 attempts to exceed the range of the regulation circular hole 5 due to its horizontal radial movement, and the hollow ball-shaped elastic body 14
When the connecting portion comes into contact with the inner edge of the retaining collar 6, the connecting portion engages with the inner edge of the retaining collar 6, and the sliding collar portion of the base plate member 10 beyond this comes into contact with the inner edge of the retaining collar 6. The relative rocking of the elastic member 13 can be performed within the range of the elastic elasticity of the hollow ball-shaped elastic body l4 of the elastic member 13. The hollow ball-shaped elastic body 14 has the same elasticity in any direction, and has the advantage of a large expansion and contraction rate.

In this way, when the swing is small, the lower coupling disk l5 of the elastic member l3 can freely move in the horizontal radial direction within the regulation circular hole 5, so that the base plate member 10 can freely slide on the slide collar 4. If the movement of the lower coupling disc l5 of the elastic member 13 exceeds the regulation range, the free movement on the sliding collar 4 of the base plate member 10 may occur. The above-mentioned elastic member l
This means that the elastic elasticity of the hollow ball-shaped elastic body l4 of No. 3 is permissible, and an effective seismic isolation effect can be achieved.

Furthermore, when an extremely large earthquake causes a very large relative movement of the substrate member 10 in the horizontal direction and the hollow ball-shaped elastic body l4 of the elastic member l3 is extremely stretched, the lower surface of the substrate member 10 is The coupled cylindrical body 1l is attached to the annular tube l placed on the sliding surface 3a of the auxiliary operation section 3.
It comes into contact with the inner circumference of 8. Then, the annular tube 18 is pushed by the coupling columnar body 11 and moves in the radial direction while being elastically restricted by the springs 19, l9, . . . . However, the slide surface 3a. Peripheral wall 3b. Annular tube 18, springs l9, l9..., and connecting cylindrical body l1
Due to this action, near the amplitude limit of this seismic isolation floor member, the relative movement in the horizontal radial direction of the coupled cylindrical body 11 and the substrate member 10 constituting it is suddenly restricted, and immediately An extreme phenomenon such as a loss of seismic isolation effect does not occur, and the seismic isolation effect is gradually lost.

This can reduce the negative impact caused by sudden changes in acceleration on people, objects, etc. on the floor supported by this.

In addition, with respect to vibrations in the vertical direction, a seismic isolation effect is ensured by the elastic expansion and contraction action in the axial direction of the elastic legs 9, 9, . . . arranged at the lower part of the base member l.

[Effects of the Invention] According to the present invention, when an earthquake or other vibration occurs, the vibrations or rocking transmitted to the subfloor can be largely blocked, and members higher than the board member can be protected from more than extremely slight vibrations. Things are made not to be transmitted. In the case of a relatively small earthquake, the lower part of the elastic member can move freely in the horizontal radial direction within the limits of the regulating hole, ensuring free sliding movement on the sliding flange of the base plate member. If the rocking becomes larger than this, the sliding movement of the base plate member on the sliding flange will be within the range of the elastic elasticity of the elastic member. By ensuring that
Obtain agricultural immunity. Furthermore, in the case of an extremely large earthquake, when the coupling cylinder formed laterally on the lower surface of the base plate member swings to the full limit of the main operation recess, the circumferential side of the coupling column and the auxiliary operation part Further swinging of the coupled cylindrical body is elastically regulated by the action of the regulating member formed between the circumferential wall and the circumferential wall. However, near the limit of the amplitude of the seismic isolation floor member, an extreme phenomenon such as sudden loss of seismic isolation does not occur, but the seismic isolation effect is gradually lost. This can reduce the adverse effects of sudden changes in acceleration on people, objects, etc. on the floor supported thereby.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, and FIG. 1 is a partially cutaway schematic front view of a seismic isolation floor member installed in a floor substructure;
FIG. 2 is a schematic plan view of the seismic isolation floor member with the base plate member removed, and FIG. 3 is a schematic bottom view of the seismic isolation floor member with the base plate member removed. ■...Base member, 2...Main operation recess, 3...Auxiliary operation part, 3a...Sliding surface, 3b...Peripheral wall, 4
. . . Slide flange, 5. Regulation circular hole, 6. Removal prevention flange, 7a. 7b...Rib, 8...Leg support part, 9
... Elastic leg, 10 ... Substrate member, 11 ... Coupling cylindrical body, 12 ... Female screw, l3 ... Elastic member, 14.
...Hollow ball-shaped elastic body, l5...Lower coupling disk, l
6...Male thread. 17... Upper connecting disk, 18...
Annular tube, l9... subring, 20... decorative material, 2 1... floor base.

Claims (1)

[Claims] In the center of the base member, a circular main operating recess is formed when viewed from a plane that is the operating area of the elastic member described later, and on the upper outer periphery of the main operating recess, a ring-shaped sliding surface and its an auxiliary operating section consisting of a peripheral wall raised on the outer periphery, and a sliding flange section extending in a radial direction from an upper end of the peripheral wall of the auxiliary operating section; a substrate member on the upper surface of the sliding flange section of the base member; A coupling cylindrical body is configured to be slidably mounted on the lower surface of the substrate member such that its peripheral side faces the peripheral wall of the auxiliary operation section, and the peripheral wall of the auxiliary operation section and the coupling cylindrical body If the connected cylindrical body attempts to exceed the range of the main operating concave part due to relative radial movement, it will prevent further relative radial movement. A regulating member that elastically regulates is disposed, and the base member and the substrate member are connected by an elastic member whose lower end is connected to the bottom of the main operation recess of the base member and whose upper end is connected to the lower part of the coupling columnar body. and connect the bottom of the main operation recess and the lower end of the elastic member so that the lower end of the elastic member can freely move only in the radial direction within the range of a regulating circular hole centered on the center of the bottom. A seismic isolation floor member comprising: further comprising: a plurality of elastic legs disposed at the bottom of the base member;