JP5903316B2 - Air vibration isolation floor - Google Patents

Description

  The present invention relates to an air vibration isolation floor, and more particularly to an air vibration isolation floor that is blocked by air so that floor vibrations are not transmitted downstairs.

  Conventionally, the floor above the floor has been a floating floor, and the floor has been supported by rubber feet on a concrete concrete slab that separates the floor from above. Vibrations and sounds generated by children jumping on the floor are absorbed by the rubber feet and are not easily transmitted downstairs. (See Patent Document 1)

  However, since many rubber feet are installed because it is necessary to support heavy objects such as chests and bookcases, vibrations on the floor are not necessarily cut off and often cause troubles.

Japanese Utility Model Publication No. 7-34136

  An object of the present invention is to provide an air vibration isolation floor that can separate a floor from a concrete slab, support the floor with air, and prevent vibrations on the floor from being transmitted to the floor.

An air vibration-isolating floor according to the present invention covers a concrete slab separating a building hierarchy, a floor installed above the concrete slab, a periphery of the concrete slab and the lower side of the floor, and the concrete slab and the floor. A first sealing material that forms a first airtight space between the floor, a cushion material that is attached between the floor and the surrounding wall, an outer cylinder that is attached to the through hole of the floor, and an inner portion that is inserted into the outer cylinder When the air supply port provided on the side surface of the outer cylinder and the air supply port provided on the side surface of the inner cylinder communicate with each other, the compressed air from the air tank is supplied to the first airtight space. When the floor rises and the air supply port of the outer cylinder and the air supply port of the inner cylinder are not communicated with each other, the floor floating height maintaining valve is configured to block the compressed air from the air tank, and the first airtight space pressure from the air tank to An air feeding mechanism that automatically feeds air to maintain the amount of air in the first airtight space, and the floor is lifted from the concrete slab by the compressed air supplied to the first airtight space. It is supported.

  The floor has a waterproof sheet attached to the bottom, and a waterproof paint is applied to the concrete slab.

  A second sealing material that covers the outside of the first sealing material is further provided, and a second airtight space is formed outside the first airtight space.

  When the air pressure in the first hermetic space rises due to an impact applied to the floor, the piston in the cylinder is pushed up, and when the air pressure in the first airtight space is relaxed, the vibration absorber is lowered by its own weight. Is attached to the floor.

Another air vibration isolation floor according to the present invention includes a concrete slab separating a floor of a building, a floor installed above the concrete slab, covering the concrete slab and a lower side of the floor, the concrete slab, a first seal member forming a first airtight space between the floor, a cushion member mounted between the floor and the surrounding wall, a height sensor for detecting the height of the floor until the concrete slab A solenoid control valve that controls on / off of the valve so that the height sensor has a predetermined height, and automatically sends compressed air from the air tank to the first airtight space, An air supply mechanism for maintaining the air amount in the first airtight space, and the floor is made of the concrete by the compressed air supplied to the first airtight space. Characterized in that it is supported lifted from Love.

  According to the air vibration isolation floor according to the present invention, the concrete slab and the lower periphery of the floor are covered with the first sealing material to form the first airtight space, and compressed air is supplied into the first airtight space. Can support the floor with air. Since the floor is supported by the compressed air, the vibration of the floor is dispersed by the air, so that the vibration of the floor is cut off and not transmitted to the downstairs via the concrete slab as compared with the case where the floor is supported by the rubber feet. A cushioning material is attached between the floor and the wall, so that even if the floor shakes, it does not hit the wall and does not make a bumping sound. Since the air feeding mechanism for automatically feeding the compressed air from the air tank to the first hermetic space is provided, the air amount in the first hermetic space can be automatically maintained regardless of manual operation.

  Since a waterproof sheet is attached to the bottom of the floor and a waterproof paint is applied to the concrete slab, air leakage from the floor plate joints and concrete cracks can be prevented.

  The second sealing material is provided so as to cover the outside of the first sealing material, and the second airtight space is formed outside the first airtight space, so that the floating of the floor is maintained even if the first sealing material is damaged. And increased reliability.

  When the air pressure in the first airtight space rises due to an impact on the floor, the piston in the cylinder is pushed up, and when the air pressure in the first airtight space is relaxed, a vibration absorber is installed on the floor where the piston descends by its own weight. Therefore, even when a child jumps on the floor, or when a large number of people jump on the floor due to exercise or dance, the impact is alleviated and the impact is not transmitted downstairs. Further, the expansion of the first seal material can be suppressed. Furthermore, the allowable range of the thickness of the first sealing material can be increased.

  As the air feeding mechanism, an air feeding mechanism (M1) having a pressure adjusting valve that automatically opens the valve and feeds compressed air of the air tank when the air pressure in the first hermetic space is lower than a predetermined air pressure is provided. Compressed air is automatically fed into the airtight space, and the air pressure in the first airtight space can be maintained constant. Even if the floor is lowered, there is no need to manually send compressed air. Moreover, since the safety valve is also provided, the internal air can be released to the outside when the pressure in the first hermetic space becomes abnormally high. The pressure control valve is suitable when the load variation on the floor is small.

  As the air feed mechanism, a height sensor that detects the distance between the floor and the concrete slab and an air feed mechanism (M2) that includes a solenoid control valve that controls on / off of the valve are provided. Thus, the compressed air can be automatically fed into the first hermetic space. For example, even when a heavy object is installed on the floor, the floor can be maintained at a certain height without changing the set value.

  As the air feeding mechanism, the air feeding mechanism (M3) of the floor floating height holding valve composed of the outer cylinder and the inner cylinder is provided. Therefore, the air feeding mechanism provided on the side of the outer cylinder and the side of the inner cylinder are provided. When the air supply port is in communication, the compressed air from the air tank is supplied to the first airtight space. When the floor rises and the air supply port of the outer cylinder and the air supply port of the inner cylinder are not in communication, the air tank Since the compressed air from is cut off, the floor height can be made constant. The floor floating height holding valve can automatically and quickly send a large amount of compressed air into the first airtight space, and is suitable for a case where the load variation on the floor is large.

It is sectional drawing of the air vibration isolation floor by this invention. In FIG. 1, an air feeding mechanism (M1) is provided. It is a perspective view of the 1st sealing material and 2nd sealing material of FIG. FIG. 2 is an operation explanatory diagram of the vibration absorber in FIG. 1, (A) is when the floor is not impacted, (B) is when the floor is impacted, and the piston is moved by the air pressure in the first airtight space. Shows the rise. It is a block diagram at the time of replacing with the air feeding mechanism (M1) of FIG. 1 and having an air feeding mechanism (M2). It is a block diagram at the time of replacing with the air feeding mechanism (M1) of FIG. 1 and having an air feeding mechanism (M3). FIG. 6 is an operation explanatory diagram of the air feeding mechanism (M3) of FIG. 5, (A) shows a case where compressed air is sent from the air tank to the first airtight space, (B) (C) shows a case where the floor is further raised from the state of (B) and the exhaust port is opened.

  Hereinafter, an air vibration isolation floor according to the present invention will be described with reference to the drawings.

  FIG. 1 is a cross-sectional view of the air vibration isolation floor 100. The air vibration isolation floor 100 covers the periphery of the concrete slab 1 that separates the floors of the building, the floor 2 that is disposed on the concrete slab 1 and forms the lower surface of the living space, and the lower side of the concrete slab 1 and the floor 2. The first sealing material 3a provided so as to form the first airtight space 7 between the concrete slab 1 and the floor 2 and the air compressor 4 for supplying compressed air to the inside of the first sealing material 3a were generated. And an air tank 4a for storing compressed air. According to this configuration, compressed air can be easily injected into the first hermetic space 7. The floor 2 can be lifted with respect to the concrete slab 1 by the air pressure of the compressed air filled in the first sealing material 3a. Specifically, the material of the first sealing material 3a is rubber. A cushion material 6 was attached between the floor 2 and the surrounding wall, and the wall side and the floor side were fixed with a scissors. Since the cushion material 6 has many holes and is soft, even if the floor 2 shakes, the floor 2 does not collide with the wall, and there is no collision sound. An expansion joint (expansion plate) 5 is placed on the cushion material 6.

  As shown in FIG. 1, an air feed mechanism 20 that automatically feeds compressed air from the air tank 4 a into the first airtight space 7 and maintains the air amount in the first airtight space 7 to the discharge port of the air tank 4 a. (M1) was provided. M <b> 1 is a first example of the air feeding mechanism 20. Specifically, it consists of a pressure regulating valve 17 and a safety valve 18. When the air pressure in the first hermetic space 7 is lower than the predetermined air pressure, the pressure regulating valve 17 automatically opens the valve to send the compressed air in the air tank 4a, and the air pressure in the first airtight space 7 is higher than the predetermined air pressure. If so, close the valve. The safety valve 18 releases air to the outside when the air pressure in the first hermetic space 7 becomes abnormally high. According to the air feeding mechanism 20 (M1), compressed air is automatically fed into the first hermetic space 7, so that it does not take time and effort.

For example, when the floor 2 has an area of 50 m ² (= 10 m × 5 m), the amount of air filled in an airtight space with a height of 10 cm (= 0.1 m) is 5 m ³ . Even if a load of about 500 kgf is applied to the floor 2, since the load is dispersed in the air, the air pressure per unit area (cm ² ) is 0.001 kgf / cm ² (= 500 ÷ (10 × 5 × 100 cm × 100 cm). )) And very little pressure. Therefore, the performance of the pump of the air compressor 4 may be small.

  It is preferable to apply a waterproof sheet 9 to the bottom of the floor 2 and apply a waterproof paint 10 to the surface of the concrete slab 1. According to this, the airtightness of the first airtight space 7 can be improved. That is, the waterproof sheet 9 can prevent air from leaking from a gap or the like generated at the joint between the rectangular plates constituting the floor 2. The waterproof paint 10 closes the cracks on the surface of the uneven concrete slab 1, so that the seal material 3 can be adhered and bonded.

  As shown in FIG. 1, a second sealing material 3 b is further provided so as to cover the outside of the first sealing material 3 a, and a second airtight space 8 is formed outside the first airtight space 7. When a child jumps on the floor 2 or when many people jump on the floor due to exercise or dance, the floor 2 is pressed downward, and the air pressure in the first airtight space 7 rises. The first sealing material 3a expands. On the other hand, since the second sealing material 3b and the second airtight space 8 are provided, even when the first sealing material is broken, the floating of the floor can be maintained and the reliability is increased. Since the air leakage check valve 12 leading from the second airtight space 8 to the room is provided, the amount of air movement can be checked by opening the valve. For example, when the amount of air moves greatly, it can be determined that the first sealing material 3a is broken.

  As shown in FIG. 1, a vibration absorber 11 was attached on the floor 2. When a child jumps or a large number of people jump on the floor due to exercise or dance, an impact is applied to the floor 2 and the air pressure in the first hermetic space 7 increases. At that time, the piston 11a in the cylinder 11b is pushed up. When the impact is reduced and the air pressure in the first hermetic space 7 is relaxed, the piston 11a descends in the cylinder 11b with its own weight. A spring 11c is provided at the upper part of the cylinder 11b to prevent the piston 11a from rising. The weight of the piston 11a is a weight that does not increase with the air pressure of the compressed air set in the first hermetic space 7.

  FIG. 2 is a perspective view of the sealing material 3. The first sealing material 3a and the second sealing material 3b are made of rubber, belt-shaped and annular. As for the 1st sealing material 3a, a lower end peripheral part is couple | bonded with the concrete slab 1 and an upper end peripheral part is couple | bonded with the floor | bed 2 so that compressed air may not leak. As for the 2nd sealing material 3b, a lower end peripheral part is couple | bonded with a side wall, and an upper end peripheral part is couple | bonded with the floor | bed 2.

  FIG. 3 is an operation explanatory view of the vibration absorber 11 of FIG. 1, FIG. 3A shows a case where no impact is applied to the floor 2, and FIG. 3B shows a case where an impact is applied to the floor 2. The case where the piston 11a is raised by the air pressure in the first hermetic space 7 is shown. When a child jumps on the floor 2 or when many people jump on the floor due to exercise or dance, an instantaneous increase in air pressure under the floor is transmitted to the lower floor via the concrete slab 1. Cheap. As shown in FIG. 3A, when the floor 2 is raised, the weight of the piston 11a exceeds the air pressure of the first hermetic space 7, and the piston 11a does not rise. As shown in FIG. 3B, when an impact is applied to the floor 2, the piston 11a is pushed up by air pressure, and the impact is alleviated. The air above the cylinder 11b is pushed out from the upper opening 11d when the piston 11a rises. The piston 11a then descends due to its own weight. In the state of FIG. 3A, the piston 11a closes the lower opening of the cylinder 11b. The vibration absorber 11 can keep the air pressure in the first hermetic space 7 constant and make it difficult to transmit an impact to the downstairs.

  FIG. 4 is a configuration diagram in the case where an air feeding mechanism 20 (M2) is provided instead of the air feeding mechanism (M1) of FIG. M <b> 2 is a second example of the air feeding mechanism 20. The air feeding mechanism 20 (M2) includes a height sensor 13 that detects the distance between the floor 2 and the concrete slab 1, and a solenoid control valve 16 that is controlled to be turned on and off. As the height sensor 13, for example, an infrared sensor that measures a short distance (several centimeters to several tens of centimeters) can be used. The solenoid control valve 16 can maintain the height of the floor 2 at a predetermined height by opening and closing the valve by on / off control from a control unit (not shown). When the height of the floor 2 fluctuates due to impact, it is desirable to control the height with a time difference. According to the air feeding mechanism 20 (M2), even if a heavy object is added to the floor 2, it can be made to follow a certain height.

  FIG. 5 is a configuration diagram in the case where an air feeding mechanism 30 (M3) is provided instead of the air feeding mechanism 20 (M1) of FIG. M3 is a third example of the air feeding mechanism 20. The air feeding mechanism 20 (M3) includes a floor floating height holding valve 15 including an outer cylinder 15b attached to the through hole of the floor 2 and an inner cylinder 15c inserted into the outer cylinder 15b. When the air supply port 15d provided and the air supply port 15d provided on the side surface of the inner cylinder 15c communicate with each other, the compressed air from the air tank 4a is supplied to the first airtight space 7 and the floor 2 rises. When the air supply port 15d of the outer cylinder 15b and the air supply port 15d of the inner cylinder 15c are not in communication, the compressed air from the air tank 4a is shut off. When the load on the floor 2 fluctuates and the floor 2 is lowered, the air supply port 15d of the outer cylinder 15b and the inner cylinder 15c communicate with each other and the compressed air is automatically fed, so that the floor 2 is maintained at a constant height. it can.

  FIG. 6 is an operation explanatory diagram of the air feeding mechanism 20 (M3) including the floor flying height holding valve 15 of FIG. 6A shows a case where compressed air is sent from the air tank 4a to the first hermetic space 7. FIG. 6B shows a case where the floor 2 rises and the supply of compressed air from the air tank 4a is blocked. 6 (C) shows a case where the floor 2 is raised from the state (B) and the exhaust port 15e is opened. The outer cylinder 15 b of the floor flying height holding valve 15 is attached to the floor 2 and rises together with the floor 2. The inner cylinder 15c is inserted into the outer cylinder 15b, the rotation is blocked by the outer cylinder 15b, and the bottom is in contact with the concrete slab 1. By turning the height adjusting handle 15h, the center shaft including the level foot 15g is rotated, and the inner cylinder 15c screwed to the center shaft is raised or lowered. Thereby, the positional relationship between the air supply port 15d of the outer cylinder 15b and the inner cylinder 15c is changed, and for example, by raising the inner cylinder 15c, the compressed air blocking position can be made higher than before. The upper portion of the inner cylinder 15c is pressed by a piston pressing spring 15f, and the piston pressing spring 15f is pressed by a cap 15a.

  An exhaust port 15 e is provided in the outer cylinder 15 b and the inner cylinder 15 c of the floor floating height holding valve 15. As shown in FIG. 6C, when the supply of compressed air is not interrupted for some reason and the floor 2 further rises from the state of (B), the exhaust ports of the outer cylinder 15b and the inner cylinder 15c. 15e communicates and the internal compressed air escapes to the outside. That is, the floor flying height holding valve 15 also has a function of a safety valve.

  According to the present embodiment, since the floor is supported by the air layer, the vibration of the floor is absorbed, and the floor is suitable as an air vibration-isolating floor that does not transmit floor vibration or impact to the downstairs.

DESCRIPTION OF SYMBOLS 1 Concrete slab 2 Floor 3 Seal material 3a 1st seal material 3b 2nd seal material 4 Air compressor 4a Air tank 5 Expansion joint 6 Cushion material 7 First airtight space 8 Second airtight space 9 Waterproof sheet 10 Waterproof paint 11 Vibration absorber 11a Piston 11b Cylinder 11c Spring 11d Upper opening 12 Air leak check valve 13 Height sensor 15 Floor floating height holding valve 15a Cap 15b Outer cylinder 15c Inner cylinder 15d Air supply port 15e Exhaust port 15f Piston presser spring 15g Level foot 15h Height Adjusting handle 16 Solenoid control valve 17 Pressure adjusting valve 18 Safety valve 20 Air feeding mechanism 20 (M1) First example of air feeding mechanism 20 (M2) Second example of air feeding mechanism 20 (M3) First of air feeding mechanism three Example 100 air anti-vibration floor

Claims (5)

A concrete slab that separates the building hierarchy,
A floor installed above the concrete slab;
A first sealing material that covers the periphery of the concrete slab and the lower side of the floor and forms a first airtight space between the concrete slab and the floor;
A cushioning material attached between the floor and the surrounding wall;
It consists of an outer cylinder attached to the through hole of the floor and an inner cylinder inserted into the outer cylinder, and an air supply port provided on the side surface of the outer cylinder communicates with an air supply port provided on the side surface of the inner cylinder When the compressed air from the air tank is supplied to the first airtight space and the floor rises and the air supply port of the outer cylinder and the air supply port of the inner cylinder are not communicated with each other, the compression from the air tank is performed. consists of a floor flying height retention valve for shutting off air, the automatically fed by the compressed air from the air tank to the first airtight space, an air infeed mechanism to maintain the amount of air in the first airtight space, but Provided,
An air vibration-isolating floor, wherein the floor is lifted and supported from the concrete slab by compressed air supplied to the first airtight space.
A concrete slab that separates the building hierarchy,
A floor installed above the concrete slab;
A first sealing material that covers the periphery of the concrete slab and the lower side of the floor and forms a first airtight space between the concrete slab and the floor;
A cushioning material attached between the floor and the surrounding wall;
A height sensor for detecting the height of the floor until the concrete slab, the height sensor is configured to include a solenoid control valve for on-off controlling the opening and closing of the valve to a predetermined height, the first A feeding air feeding mechanism that automatically feeds compressed air from the air tank into the airtight space and maintains the amount of air in the first airtight space; and
An air vibration-isolating floor, wherein the floor is lifted and supported from the concrete slab by compressed air supplied to the first airtight space.
The floor at the bottom tarpaulin is attached, air antivibration floor according to claim 1 or 2, wherein the concrete slab is characterized in that waterproof paint is applied.
3. The air vibration isolator according to claim 1, wherein a second seal member that covers the outside of the first seal member is further provided, and a second air tight space is formed outside the first air tight space. 4. floor.
When the air pressure in the first hermetic space rises due to an impact applied to the floor, the piston in the cylinder is pushed up, and when the air pressure in the first airtight space is relaxed, the vibration absorber is lowered by its own weight. but air antivibration floor according to claim 1 or 2, characterized in that attached to the floor.

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