JPS63210434A - Vibrationproof board - Google Patents

Abstract

PURPOSE:To obtain the high vibration absorbing efficiency in all the directions by installing the upper and lower supporting bodies which move vertically, interposing a ring-shaped rubber tube charged with the air having a prescribed pressure, and by installing the shift regulating plates which contact the inside or outside of the tube, onto each supporting body. CONSTITUTION:A vibrationproof board 12 is installed at the position of each wheel 10 of an air compressor 9, and the compressor 9 is supported onto a floor surface through the vibrationproof board 12. Therefore, even if the compressor 9 operates, and the vibration is transmitted onto the vibrationproof board 12, the compressor 9 is supported between the upper and lower parts of a rubber tube 2 formed into a ring form and the inner and outer wheels. Therefore, the vibration of the compressor 9 which acts in all the directions of the vibrationproof board 12 is absorbed uniformly in reasonable ways by the whole tube 2. Further, the sliding between the tube 2 and the upper supporting body 4, lower supporting body 5, the first and second regulating plates 6 and 7 can be improved by planting wires 3 onto the outer peripheral surface on the sectional surface of the tube 2, and the movement of each member is made smooth, and the vibrationproof effect and the durability of the tube 2 can be improved markedly.

Description

Detailed Description of the Invention (Industrial Application Field) The present invention is applicable to an engine that generates vibrations in a state in which transmission of vibrations is cut off, various devices that use the engine as a drive source, or motor-driven devices. This invention relates to an improvement of a vibration isolation table that supports arbitrary equipment such as compressors that generate vibrations.

(Prior Art) Conventionally, for example, if a compressor with relatively large vibrations is supported indoors without any anti-vibration measures,
The vibrations of the compressor are transmitted through the floor and may damage surrounding equipment or
This not only caused the walls of the building to vibrate, which not only degraded the surrounding working environment, but also shortened the lifespan of equipment and buildings.

Therefore, when supporting equipment that generates large vibrations, a vibration-absorbing rubber cushion or air cushion is interposed between the floor or room and the equipment that generates vibrations.

(Problem to be solved by the invention) In such a case, even if a cushion with a simple structure can absorb vertical vibration with sufficient durability, it will not only be insufficient in absorbing horizontal vibration, but also the cushion itself For example, if the rubber of the cushioning material and the supporting member are sewn together, it may damage the part. In this case, not only the structure of the vibration isolator becomes complicated and large, but also the price of the vibration isolator becomes considerably high.

(Means for Solving the Problems) The present invention provides an upper support and a lower support that move up and down at an angle of /υ with a ring-shaped rubber tube filled with air at a preset pressure. A first regulating plate is attached to the lower support that contacts one of the inner and outer circumferences of the ring of the tube to regulate displacement of the contact surface, and the first regulation plate is in contact with the other of the inner and outer circumferences of the ring of the tube. The vibration isolating table is equipped with a second regulating plate that regulates the displacement of the contact surface.

(Function) In the case of the vibration isolation table configured in this way, the imaging generating device is supported between the top and bottom of the ring-shaped rubber tube and between the inner and outer rings, so the structure is simple, and the top and bottom The entire tube can receive vibrations evenly and easily in all directions, especially in the horizontal direction, especially in the face-centered angle, and in the diagonal direction.As a result, not only is the vibration absorption efficiency high, but the imaging absorption efficiency is also directional. Therefore, the durability is extremely high because there is no local stress concentration.

(Example) Next, the configuration of an example of the present invention will be described with reference to the drawings.

It is a ring-shaped rubber tube 72 in which air is sealed at a preset pressure via an air supply and air release valve 1, and flocking 3 for reducing the coefficient of friction is applied to the outer peripheral surface of the cross section of the tube 2. Upper support body 4 that moves up and down with tube 2 in between
In the lower support body 5, on the lower surface of the upper support body 4, there is a first regulating plate 6 that contacts one of the inner circumference and the outer circumference of the ring of the boob 2, in this case, the inner circumference of the ring and regulates the displacement of the contact surface.
A second regulating plate 7 is attached to the upper surface of the lower support 5 to contact the other of the inner and outer circumferences of the ring of the tube 2, in this case, the outer circumference of the ring, and to regulate the displacement of the contact surface GJ. The valve 1 is exposed through a hole 8 made in the center of the lower support 4 so that air can be supplied and air removed, and a support supported by the lower support 4 is placed on the lower support 4 A stop that engages with the support to prevent movement of the support, in this case a wheel 10 of an image generating device, for example an air breech 9.
A stopper 11 is attached that comes into contact with the compressor 9 to prevent movement of the near compressor 9.

Next, the operation of this embodiment will be explained.

The vibration isolation table 12 configured in this way is used as an air compressor 9.
In a state where the near compressor 9 is installed at each wheel 10 position and supported on the floor via the vibration isolator 12, the air compressor 9 is operated and the near compressor 9 is
Even if the vibration from
Even if the vibrations from the vibration isolation table 12 act in all directions, normal to the plane, plane, and diagonal directions, the vibrations of the compressor 9h1 and the like are absorbed uniformly and easily by the tube 2 body, and therefore,
In this case, even if the structure of the vibration isolator 12 is simple, the vibration absorption efficiency is not only low, but also there is no directionality in the vibration absorption efficiency, and therefore, stress is not concentrated locally, so the durability of the vibration isolator 12 is significantly improved. can do.

In addition, in this embodiment, j! ? ! Because the flocking 3 for reducing the coefficient of friction is applied, there is good sliding between the tube 2 and the lower support 4, lower support 5, first regulation plate 6, and second regulation plate 7, and each member is suitable for vibration absorption. It is possible to further improve the vibration absorption effect and the durability of the tube 2 by making the movement smoother.
By making the regulating plate 6 and the second regulating plate 7 into the first regulating plate 6A and the second regulating plate 7A which are formed in an arc shape as shown in FIG. It can be a difficult situation.

(Effects of the Invention) The present invention is characterized in that an upper support and a lower support are installed to sandwich a ring-shaped rubber tube 1 filled with air at a preset pressure, and the tube is attached to the upper support. A first regulating plate is attached to the lower support that contacts one of the inner and outer circumferences of the ring to regulate the displacement of the contact surface thereof, and the lower support is in contact with the other of the inner and outer circumferences of the ring of the tube. It is located on a vibration isolating table equipped with a second M control plate that regulates the displacement of the surface.

As a result, although the present invention is simple and compact in construction, the entire tube receives vibrations evenly and easily in all directions, including the top, bottom, left, and right directions, especially perpendicular to the surface and diagonal directions. There is an effect that the durability of the vibration isolation table can be significantly improved by eliminating the directionality in the imaging absorption efficiency while obtaining the imaging absorption efficiency.

[Brief explanation of the drawing]

FIG. 1 is a front view of one embodiment of the invention, FIG. 2 is a plan view thereof, and FIG. 3 is a front view of another embodiment of the invention. 2...Tube 4...Upper support 5...
Lower support 6... First regulating plate 7... Second regulating plate 11... Stopper 12... Vibration isolating base

Claims (5)

[Claims] (1) An upper support and a lower support are provided that move up and down across a ring-shaped rubber tube filled with air at a preset pressure, and the upper support comes into contact with one of the inner and outer circumferences of the ring of the tube. a first regulating plate that regulates the displacement of the contact surface thereof, and a second regulating plate that contacts the other of the inner and outer circumferences of the ring of the tube on the lower support and regulates the displacement of the contact surface; A vibration-isolating stand that is characterized by attaching. (2) The vibration isolation according to claim 1, characterized in that a stopper is formed on the upper support body to engage with the support supported by the vibration isolation table and prevent the support from moving. The stand. (3) The vibration isolation table according to claim 1, wherein the vibration isolation table is equipped with a valve for supplying air to the tube and for releasing air. (4) The vibration isolating table according to claim 1, wherein the outer peripheral surface of the cross section of the tube is provided with flocking for reducing the coefficient of friction. (5) The vibration isolating table according to claim 1, wherein the first regulating plate and the second regulating plate are formed in an arc shape substantially along the outer periphery of the cross section of the tube.