JPH0583702B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an elastic body for a floor member used in a floor member constituting a seismic isolation floor.

[Prior Art] Various floor structures are known that are designed to prevent vibrations generated in a room from being transmitted to other rooms, and to prevent vibrations from other places from being transmitted to equipment placed above them. ing.

However, these floor structures are not constructed using unit components such as floor panels.

The present inventor has developed a floor member that is a unit component that can easily constitute an excellent seismic isolation floor,
This was proposed (Patent Application No. 51886, 1983). However, this technology is not yet publicly known.

[Problems to be Solved by the Invention] The present invention relates to an elastic body for a floor member, which is a component of the above-mentioned floor member. It is an object of the present invention to provide an elastic body for a floor member that can support a wide range of supporting loads by extending the upper and lower limits.

[Means for Solving the Problems] The gist of the configuration of the present invention is that elastic body insertion holes are bored in the lower surface of the upper plate and the upper surface of the lower plate in one-to-one correspondence with each other. In an elastic body for a floor member, the upper end is inserted into the insertion hole of the plate, and the lower end is inserted into the insertion hole of the lower plate, and these are coupled in a vibrationally insulated state to constitute the floor member. This is an elastic body for a floor member in which an annular groove is formed in the circumferential direction in the middle.

The upper plate and the lower plate can be made of any material and other materials that may be selected, unless there is a reason that the above structure is inconvenient.

When the elastic body insertion hole is bored on the lower surface of the upper plate, the lower surface may be formed in a flat state and the holes may be formed in an appropriate arrangement, but legs may be formed on the lower surface. , it may be perforated on the lower surface of the leg body. The elastic body insertion hole to be drilled in the upper surface of the lower plate may be similarly drilled in the upper surface of the flat state, but leg auxiliary bodies are configured at positions corresponding to the leg bodies and the holes are drilled in these. It's also good to do. This configuration is preferable because the space between the partition walls constituted by the leg body and the leg auxiliary body can be used as a passage for wiring or piping.

Note that each of the elastic body insertion holes is appropriately deep enough to insert about 1/3 of the length of the elastic body.

The rubber member constituting the elastic body for floor members is not limited to a specific one, as long as it has the necessary elasticity, mechanical strength, weather resistance, etc. Natural rubber-based or chloroprene-based synthetic rubbers are generally suitable.

Further, it is preferable that the annular groove has a plurality of protrusions oriented in the radial direction at regular angular intervals from the center of the elastic body on the lower wall or the upper wall thereof.

[Function] Since the present invention is constructed as described above, it functions as follows.

As mentioned above, the elastic body for flooring is assembled by inserting the upper end into the insertion hole of the upper plate and the lower end into the insertion hole of the lower plate, and joining them with a slight gap between them. It constitutes a member.

Therefore, if this floor material is placed on the subfloor of the target building to form a floor, both fairly heavy and light items may be placed on the floor without any distinction. The desired seismic isolation effect can be secured without any problems.

As mentioned above, a circumferential annular groove is formed in the middle of the elastic body, and when an article or the like is placed on the floor and the elastic body contracts, the width of the contraction is small and still A state in which the upper wall and lower wall of the annular groove are separated,
That is, when only lightweight items are placed on the floor, the load is mainly elastically supported by the small diameter portion located inside the annular groove, and this portion performs a seismic isolation function. Furthermore, when heavier items are placed on the floor, the floor sinks significantly, and the upper wall of the annular groove joins with the lower wall, causing the narrow diameter part to disappear, causing the elastic body to sink. The entire structure will bear the load, and the entire structure will also perform a seismic isolation function.

In the above case, the method of action changes in two stages depending on the difference in weight, but as mentioned above, if the upper wall or lower wall has protrusions oriented radially from the center. The effect is slightly different depending on the load at the stage where the upper or lower wall that faces them comes into contact with the upper or lower wall, and in the case of such a load,
Mainly, the small diameter portion and the protrusions support the load and provide seismic isolation.

Therefore, it can support a wide range of loads, and with a type of elastic body, it can be used for most floor configurations, from large to small weights.

Furthermore, forming the annular groove in the elastic body is advantageous for vibrations in the horizontal direction.

[Example] An example of the present invention will be described below based on the drawings.

As shown in FIGS. 1 to 3, the elastic body 1 has an annular groove 2 by removing the central part of the cylindrical member in the circumferential direction.
The lower wall 3 of this annular groove 2 is provided with eight protrusions 4, 4, . . . facing in the radial direction at angular intervals of 45°. In the figure, 5 is an upper wall, and 6 is a narrow diameter portion. Further, a bolt 9 for fixing to the upper plate 8 of the floor member 7, which will be described later, is coaxially provided at the upper end of the elastic body 1.

On the other hand, FIG. 4 is an exploded perspective view of a floor member 7 that uses the above-mentioned elastic bodies 1, 1, . . . It is composed of bodies 1, 1...

As shown in FIGS. 4 and 5, the upper plate 8 has three rows of legs 12, 12, 12, which are rectangular parallelepiped-shaped protrusions, arranged in parallel on the lower surface of a plate having a square plane. In addition, insertion holes 13, 13, . . . for the elastic body 1 are bored in the lower surfaces of the legs 12, 12, 12. As shown in FIG. 6, bolt holes 14 penetrating through the upper surface of the upper plate 8 are formed in the insertion holes 13, 13, . to be drilled.

As shown in FIG. 4, one insertion hole 13 is placed near the end of each of the legs 12 on both sides, and one insertion hole 13 is placed in the center of the middle leg 12. Further, the depth thereof is set to 1/3 of the length of the elastic body 1 in the axial direction.

The decorative board 10 is made of a plastic member having the same planar dimensions as the top board 8.

On the other hand, as shown in FIGS. 4 to 6, the lower plate 11 has three rows of leg auxiliary bodies 16, 16, 16, which are rectangular parallelepiped-shaped protrusions, on the upper surface of a square plate.
The insertion holes 17, 17, . It was drilled in correspondence with 13...

In this example, since the configuration is as described above,
First, construct the floor member as follows.

First, the elastic body 1 is inserted from the upper end side into all the insertion holes 13, 13... bored in the legs 12, 12, 12 of the upper plate 8, and the bolt 9 is passed through the bolt hole 14, and the nut is inserted. A nut 18 is attached to the tip of the bolt 9 that protrudes from the nut insertion portion 15.
Screw and secure. Thereafter, a decorative board 10 is attached to the upper surface of the upper board 8.

Furthermore, the upper surface of the lower plate 11 is made to correspond accurately to the lower surface of the upper plate 8, and the insertion holes 17, 17 are prepared in advance.
A small amount of adhesive is inserted into the upper plate 8, and the lower ends of the elastic bodies 1 fixed in the insertion holes 13, 13, . . . are inserted into the insertion holes 17, 17, respectively, and fixed. In this way, about 1/3 of the middle of the elastic body 1 is exposed between the lower surface of the legs 12, 12... of the upper plate 8 and the upper surface of the leg auxiliary bodies 16, 16... of the lower plate 11, and a gap corresponding to that amount is exposed. It will be open.

In this way, the floor member 7 is constructed.

Next, construction of a floor using this floor member 7 will be explained. Here, an example of configuring the floor of a reinforced concrete building will be explained.

First, a necessary number of floor members 7, 7, . . . are prepared for installation in the corresponding area.

After doing so, the floor members 7, 7, . . . are sequentially arranged on the floor base 19.

As shown in FIG. 5, the floor members 7, 7, . . . are arranged with the lower surface of the lower plate 11 bonded and adhered onto the floor base 19. The arrangement is such that the floor member 7 is placed at a constant distance from the wall 20 at the position where it touches the wall 20 around the room, and an inelastic gap member 21a is inserted in the lower part of the gap created. , an elastic gap member 21b is inserted into the upper part. The thickness of the non-elastic gap member 21a is the same as the thickness of the lower plate 11, and the elastic gap member 21b has the thickness of the upper plate 8 and the decorative plate 10 and the mutual gap between the upper plate 8 and the lower plate 11. Add the distance to the thickness.

Note that when installing the floor member 7 in this way,
If necessary, install telephone wires, electric wires, gas piping, etc. in sequence in the gaps created between one row of the leg bodies 12, elastic bodies 1, and leg auxiliary bodies 16 and those of the adjacent row. Enter.

However, the floor constructed in this way is constructed by using the elastic bodies 1, 1...
Since the top plate 8 is supported, the feeling of walking is soft. In addition, in the event of an earthquake or other vibration,
As mentioned above, the upper plates 8, 8, etc., which make up the floor surface, are vibrationally insulated from the members below the lower plate 11 by the elastic bodies 1, 1..., so that the shaking of the main body of the building is absorbed by the floor. It doesn't show much on the surface. Such an effect is
The elastic bodies 1, 1... are inserted into the insertion holes 13, 13... and 1
7, 17, etc., and is constructed to be long enough to obtain sufficient elasticity in relation to the gap between the upper plate 8 and the lower plate 11, so that this can be achieved reliably.

Further, as shown in FIG. 5, an elastic gap member 21 is provided at a position where the upper plates 8, 8...
The insertion of b also further enhances the above effects. Therefore, a floor constructed using this floor member 7 is most suitable for a room in which it is necessary to install articles or equipment to avoid vibration.

By the way, the elastic body 1 used here
Since the annular groove 2 in the circumferential direction is formed in the middle, when relatively lightweight articles are placed on the floor, there is little sinkage, and the elastic bodies 1, 1... The weight will be supported by the narrow diameter portion 6 of. Therefore, elasticity suitable for its weight is ensured, and an appropriate seismic isolation effect can be obtained even when vibrations such as an earthquake occur.

Furthermore, when a slightly heavier article is placed on the floor, the sinking becomes slightly larger, and the upper wall 5 of the annular groove 2 descends to a position where it contacts the protrusions 4, 4, . . . In this way, the weight applied to the floor is supported by the narrow diameter portion 6 and the protrusions 4, 4, and elasticity suitable for the weight is ensured. Appropriate seismic isolation effects can also be obtained against vibrations such as earthquakes.

When an article heavier than the above is placed on the floor, the sinking becomes even greater, and the upper wall 5 of the annular groove 2 comes into contact with the lower wall 3. In this case, the narrow diameter portion 6 essentially disappears, and the weight is supported only by the large diameter portion of the elastic body 1. Therefore, elasticity suitable for the large weight is ensured, and an appropriate seismic isolation effect can be obtained.

In this way, a circumferential annular groove 2 is formed in the middle of the elastic body 1, and protrusions 4, 4, . . . are formed on the lower wall 3 of the annular groove 2. Depending on the load, as described above, the load may be supported only by the narrow diameter portion 6, the load may be supported by the narrow diameter portion 6 and the protrusions 4, 4, etc., or the upper wall 5 and the lower wall 3 may be in contact with each other. Since the large diameter portion as a whole can be deformed to support the load, a type of elastic body 1 can cover a wide range of supported loads.

Further, the provision of the annular groove 2 in the elastic body 1 brings about good results even against vibrations in the horizontal direction.

[Effects of the Invention] When a floor is configured according to the present invention, in the event of an earthquake or other vibration, the upper plate forming the floor surface will be supported by the subfloor etc. via an elastic body, so that Vibrations are blocked here and are not transmitted to the articles placed on top of them. Also, the floor feels soft when walking on it.

Furthermore, a circumferential annular groove is formed in the middle of the elastic body, and the depth of sinkage differs depending on the supported load, and in the case of lightweight, the load is supported only by the narrow diameter part, In the case of weight, the upper wall and lower wall are in contact and the large diameter portion supports the load as a whole, so a type of elastic body can cover a wide range of supported loads.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention.
The figure is a front view of the elastic body, Figure 2 is a plan view of the elastic body,
Figure 3 is a sectional view taken along the line A-A in Figure 1, Figure 4 is an exploded perspective view of the floor member, Figure 5 is a partially cutaway explanatory view of the floor member installed on the subfloor, and Figure 6 is It is a partially cutaway enlarged sectional view of the floor member. 1... Elastic body, 2... Annular groove, 3... Lower wall, 4
... Protrusion, 5 ... Upper wall, 6 ... Narrow diameter part, 7 ... Floor member, 8 ... Upper plate, 9 ... Bolt, 10 ... Decorative board, 11 ... Lower plate, 12 ... Legs, 13, 17...
... Insertion hole, 14 ... Bolt hole, 15 ... Nut insertion part, 16 ... Leg auxiliary body, 18 ... Nut, 19
...Floor base, 20...Wall, 21a, 21b...Gap members.

Claims (1)

[Scope of Claims] 1. Elastic body insertion holes are formed in the lower surface of the upper plate and the upper surface of the lower plate in one-to-one correspondence with each other, and the upper end is inserted into the insertion hole of the upper plate, and the elastic body insertion hole is inserted into the insertion hole of the lower plate. In an elastic body for a floor member, which is constructed by inserting the lower end into a columnar rubber member and connecting them in a vibrationally insulated state to form a floor member, there is a floor member in which an annular groove is formed in the circumferential direction in the middle of a columnar rubber member. Elastic body for parts. 2. The elastic material for a floor member according to claim 1, wherein a plurality of protrusions oriented in a radial direction at regular angular intervals from the center of the rubber member are formed on the lower wall or the upper wall of the annular groove.