JPH0571336U - Seismic isolation floor equipment - Google Patents

Abstract

(57) [Summary] [Purpose] Providing a new seismic isolation floor device that has a good seismic isolation effect even when it vibrates in all directions such as an earthquake, and does not cause the device installed on the floor to move or fall. To do. [Structure] A panel 9 for supporting the catching device 4 with respect to the outer frame portion 11 via a vibration isolator 12 (22) is formed.
The height of the portion of the device 4 on which the catching foot 10 is placed is higher than the outer frame portion 11 by a predetermined height.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention relates to a vibration-isolated floor device for protecting a computer device or the like installed on the floor from an earthquake or vibration.

[0002]

[Prior Art]

 Conventionally, the floor of a computer room, a control room, etc. usually has a double floor structure as shown in FIG. In the double-floor structure, support legs 2 are erected at a predetermined number of places on a fixed floor 1 such as concrete. Then, the four corners of the rectangular panel-shaped floor panel 3 are supported by the supporting legs 2, and a large number of floor panels 3 are laid on the fixed floor 1 to form two It constitutes a heavy floor. In addition, in the space between the fixed floor 1 of the double floor and the floor panel 3, a wiring for communication is laid out. Moreover, although the computer device 4 and the like are installed on the floor panel 3, the seismic isolation leg 5 is interposed so that the computer device 4 or the like is not easily fallen and destroyed when an earthquake occurs.

As shown in FIG. 11, the seismic isolation leg 5 is formed by attaching a mounting bolt 8 supported by an elastic member 7 to a central portion of a leg base 6. The mounting bolt 8 is configured to be eccentric while elastically deforming the elastic member 7 on the leg base 6.

The seismic isolation leg 5 is used with its mounting bolt 8 fastened to the bottom of the computer device 4 and the leg stand 6 left on the floor panel 3. When an earthquake occurs, as shown by the solid line in FIG. 11, even if the footrest 6 moves in the direction of the lateral seismic wave, the mounting bolt 8 is eccentric while deforming the elastic member 7, and the acceleration received by the computer device 4 is changed. It is intended to prevent the computer device 4 from falling down and being destroyed to some extent.

[0005]

[Problems to be solved by the device]

 In the conventional means for arranging the computer device on the floor panel of the conventional double floor structure as described above, the seismic isolation leg attached to the bottom of the computer device is placed without being fixed. Although there is a seismic isolation effect, seismic waves are accompanied by vertical vibrations, so there was a problem that the seismic isolation effect is not sufficient when vibrations occur in all directions as in a general earthquake. In addition, since the seismic isolation legs are not fixed to the floor panel, the computer device may move or fall if it is subjected to vibration such as a large earthquake. In such a situation where the computer device moves or falls, the computer device comes into contact with another device or an operator, causing a secondary disaster such as damage to the device or injury to the operator. There was a problem that there was something to do.

In view of the above-mentioned point, the present invention can be expected to have a seismic isolation effect even when it vibrates in all directions such as a general earthquake, and the device installed on the floor will largely move or fall. The purpose is to newly provide a seismic isolation floor device that prevents such a situation.

[0007]

[Means for Solving the Problems]

 In the seismic isolation floor device of the present invention, a panel is constructed so as to support the trapping device through a vibration isolator arranged from the opening portion of the outer frame portion to the inside, and the trapping foot of the device is fastened to this panel. It is characterized in that it is fixed and the part of the panel where the catching foot is placed is higher than the outer frame by a predetermined height.

[0008]

[Action]

 With the above-mentioned structure, a good seismic isolation effect can be obtained not only for horizontal vibrations but also for vertical or rotational vibrations. Furthermore, by changing the shape and material of the anti-vibration material, which is a component of the seismic isolation structure, and by changing the height of the part where the gripping foot of the device to be installed on the panel is placed, the weight and resonance circumference of the device to be installed The seismic isolation effect can be improved by responding to various conditions such as the wave number and the position of the center of gravity, and the magnitude of vibration.

[0009]

【Example】

 An embodiment of the seismic isolation floor device of the present invention will be described below with reference to FIGS. 1 to 9, parts corresponding to those of the conventional example shown in FIGS. 10 and 11 are designated by the same reference numerals, and detailed description thereof will be omitted.

1 to 6 showing a first embodiment of the present invention, 1 is a fixed floor, 2 is a support leg, 3 is a floor panel, 4 is a computer device, and 9 is a panel of a seismic isolation floor device.

The panel 9 of the seismic isolation floor device is formed in a rectangular shape having the same outer diameter as the general floor panel 3 of the double floor structure, and as shown in FIGS. It is to be installed on the support leg in place of the floor panel at the position of 10. As shown in FIG. 2, the panel 9 of the seismic isolation floor device has a rectangular frame-shaped vibration isolator 12 disposed inside the outer frame 11 formed in a rectangular frame shape. A rectangular plate-shaped panel portion 13 is arranged on the opening peripheral portion 12b to form a single floor panel as a whole. As shown in FIG. 1, the outer frame portion 11 is formed in a cross-sectional shape such that the outer portion 11a is one step higher and the inner portion 11b is one step lower than the central portion in the cross-section length direction. The outer portion 12a of the vibration isolator 12 is laid on the inner portion 11b of the outer frame portion 11. A support plate 14 is embedded in the outer side portion 12a, and a screw rod 15 having one end fixed to the support plate 14 and projecting is fastened with a through nut 16 to a through hole formed in the outer frame portion inner portion 11b. The middle portion of the cross section of the vibration isolator 12 is formed thin so as to be easily elastically deformed.

The outer peripheral portion of the panel portion 13 is superposed on the upper flat surface of the opening peripheral portion 12b of the vibration isolator 12, and the bolt 17 standing on the panel portion 13 is passed through a through hole formed in the opening peripheral portion 12b. Tighten at 18.

A through hole is drilled at a predetermined position in the central portion of the panel portion 13, and a nut 20 is fitted into a bolt 19 passed through the installation foot portion 10 of the computer device 4 to attach the computer device 4 to the panel portion 13. Fixed to. The vibration-damping material 12 in the first embodiment is not limited to the above-described structure, but is shown in FIG. 2A-A line cross-sectional view corresponding to the weight and center of gravity of the computer device 4, for example. As shown, the middle portion of the cross section may be formed in a corrugated shape to facilitate elastic deformation. Alternatively, as shown in FIGS. 4 and 5, large and small circular holes 21 may be formed in the middle portion of the cross section of the vibration isolator 12. Furthermore, by raising the height position of the upper surface of the panel portion 13 to a required height above the upper surface of the floor panel 3, a seismic isolation structure can be provided which corresponds to the magnitude of the vibration of the computer device 4 in the vertical, horizontal, or rotational directions. Is.

Next, a second embodiment of the present invention will be described with reference to FIGS. In the present embodiment, the outer frame portion 11 and the vibration-proof material portion 22 constitute the panel 9 of the seismic isolation floor device.

The outer frame portion 11 has a rectangular frame shape, and the cross-sectional shape is formed such that the outer portion 11a is one step higher and the inner portion 11b, which is bent at the center portion of the cross section and is continuous, is one step lower.

As shown in the sectional shapes of FIGS. 8 and 9, the vibration-proof material portion 22 has a vertical side portion 22b formed by bending and rising from a support portion 22a placed on the inner portion 11b of the outer frame portion. .. Further, the plate portion 22c is formed by bending the upper portion of the vertical side portion 22b horizontally. In this way, as shown in FIG. 7, the fixing bolt 23 is passed through a through hole at a predetermined center position of the flat plate portion 22c formed in the central portion of the panel 9 and the fixing bolt 23 is connected to the computer. The computer device 4 is passed through the installation foot 10 of the device 4 and fastened with a nut 24, and the computer device 4 is fixedly installed on the double floor panel 9.

Further, in the present embodiment, when the height of the vertical side portion 22b of the vibration isolator 22 is increased as shown in FIG. A good seismic isolation effect can be expected for large swings in the vertical direction, and a good seismic isolation effect can be expected for vertical, horizontal, or rotational small swings by lowering the vertical side portion 22b as shown in FIG. .. Furthermore, by changing the material of the vibration-proof material 22 to an appropriate one, the natural frequency of the vibration-proof material is changed to correspond to the resonance frequency, and the seismic isolation effect can be improved.

It should be noted that the present invention is not limited to the above-described embodiments, and it goes without saying that various other configurations can be adopted without departing from the gist of the present invention.

[0019]

[Effect of the device]

 As described above in detail, according to the seismic isolation floor device of the present invention, the panel is configured to support the catching device through the vibration isolator arranged from the opening portion of the outer frame portion to the inside thereof. In addition to fastening and fixing the trapping foot of the device, the height of the part where the trapping foot of the panel is placed is set higher than the outer frame by a predetermined height, so it is not a horizontal vibration but a vertical or rotational movement. A good seismic isolation effect can also be obtained for vibrations in the direction. Furthermore, by changing the shape and material of the anti-vibration material, which is a component of the seismic isolation structure, and by changing the height of the part where the trapping foot of the device to be installed on the panel is placed, the weight and resonance of the device to be installed There is an effect that the seismic isolation effect can be improved by responding to various conditions such as frequency and position of the center of gravity, and also depending on the magnitude of vibration.

Also, since the device is fixed to the panel, it is possible to prevent the device from moving or falling due to vibration and to prevent damage to the device or injury to workers. .. At the same time, the seismic isolation floor device panel is compatible with the floor panel of the general double floor structure, so it is possible to easily correspond to the device currently installed on the double floor by simply replacing it. There is an effect.

[Brief description of drawings]

FIG. 1 is a longitudinal cross-sectional view of a main part showing a first embodiment of a base isolation floor device of the present invention.

FIG. 2 is a perspective view showing the vibration damping material of the above-mentioned embodiment taken out.

FIG. 3 is an enlarged cross-sectional view corresponding to FIG. 2A-A showing another configuration example of the vibration isolator in the above-described embodiment.

FIG. 4 is an enlarged plan view showing a part of still another configuration example of the vibration damping material in the above-described embodiment.

FIG. 5 is an enlarged cross-sectional view corresponding to FIG. 2A-A line showing still another configuration example of the vibration damping material in the above-described embodiment.

FIG. 6 is a partial cross-sectional front view showing a state in which a computer device is installed in the double-floor seismic isolation floor device in the above embodiment.

FIG. 7 is a perspective view of a seismic isolation floor device panel showing a second embodiment of the present invention.

FIG. 8 is a longitudinal sectional view of an enlarged main part of the above embodiment.

FIG. 9 is an enlarged longitudinal sectional view of an essential part showing another example of the configuration of the above embodiment.

FIG. 10 is a partial sectional front view illustrating a conventional double floor structure and a base isolation leg.

FIG. 11 is a partially sectional front view illustrating a conventional seismic isolation leg portion.

[Explanation of symbols]

 1 ... Fixed floor 3 ... Floor panel 4 ... Computer device 9 ... Panel 10 ... Installation foot 11 ... Outer frame 12 ... Vibration isolator 13 ... Panel 21 ... Circular hole 22 ... Vibration isolator

Claims (1)

[Scope of utility model registration request] 1. A seismic isolation floor device in which various devices are trapped on a floor panel having a double floor structure, wherein the trapping device is provided via a vibration-proof material arranged from the opening of the outer frame portion to the inside. The panel is configured to support, and the panel and the catching foot of the device are fastened and fixed, and the height of the part of the panel where the catching foot of the device is placed is higher than the outer frame portion by a predetermined height. A seismic isolation floor device characterized by being configured.