JPH0115946Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a vibration isolating device.
This invention relates to an improvement in a device that is disposed on the bottom side of equipment that generates vibrations to prevent the vibrations of the equipment from being transmitted to the installation surface, floor, etc.

Many vibration isolators of this type have been proposed and implemented in the past, but most of them are constructed by incorporating a vibration absorber into a large frame that is approximately the same size as the outer circumference of the bottom of the equipment. Because of this, they are large and heavy, making it extremely difficult to transport and install the equipment, as well as increasing equipment costs.Moreover, if unbalanced loads are applied to equipment, structural damage may occur. It was necessary to slide the vibration absorber to the required location using complicated moving means.

The present invention was researched and developed to solve the above problem, and consists of a board, a pedestal placed above the board, and a vibration absorber installed between the board and the pedestal. is equipped with a hollow base, a spring accommodating body in which a plurality of springs are individually arranged and housed in each accommodating chamber, each of which has an upper end protruding outward, and a through hole is provided in the center, and a screw rod part. It consists of a pedestal support with a mounting rod suspended below the top plate, and the spring housing is placed on the base, and the mounting rod of the pedestal support is inserted into the through hole of the housing. A screw rod part is made to protrude into the base, and an adjustment nut is screwed onto the screw rod part so that the spring pressure of the vibration absorber can be adjusted. This invention relates to a vibration isolating device constructed by fixing the substrate and the base, and the top plate and the pedestal, respectively, and further providing clamp members for engaging equipment at required locations on the pedestal.

Embodiments of the present invention will be described below with reference to the accompanying drawings. 1 is a board provided with a mounting hole 2 for installing equipment, and 3 is arranged on the top of the board with a vibration absorber 4 interposed therebetween. The frame has a rectangular planar shape.

As shown in FIGS. 3 and 4, the vibration absorber 4 includes a hollow cubic base 5 and a composite coil spring 6 arranged and housed evenly on all sides, with each upper end facing outward. A rubber spring housing 8 that protrudes from the top and has a through hole 7 in the center, and a mounting rod 10 that has a threaded rod portion 9 at its lower end are attached to the top plate 1.
1 and a pedestal support 12 suspended below the
Place the spring housing 8 on the base 5, insert the mounting rod 10 of the gantry support 12 into the through hole 7, and screw the adjustment nut 13 onto the protruding threaded rod 9 from the inside of the base 5. The spring pressure of the composite coil spring 6 is adjusted by tightening and loosening the nut.

The pedestal 3, which has a rectangular planar shape, has a long hole 15 and a fixing member 16 in the side wall 14 in the longitudinal direction, so that the engagement interval width 17 can be adjusted to large or small. The combination clamp members 18 are attached at two locations with a required spacing between them, and a stopper 19 for positioning equipment is provided protruding from the upper surface of the outside of the pedestal.

Therefore, when attaching the pedestal 3 to the top of the board 1 via the vibration absorber 4, the vibration absorbers 4, 4 are arranged in parallel at the bottom of the pedestal in the longitudinal side direction, and the base 5 is fixed to the board 1. At the same time, the pedestal 3 is fixed to the top plate 11 of the pedestal support 12 to constitute a vibration isolator A for the side of equipment. On the installation stand P
The four sides of the equipment M are placed on the pedestal 3, and the mounting frame F at the bottom is secured with the clamp member 18, so that the equipment M is fixed at a predetermined position. It is used as a vibration isolator for the side of equipment by supporting it, and in FIG. The vibration isolator has the following functions and effects.

(1) Because it is small and lightweight, it is easy to transport to the site and handle during facility work, etc., and is inexpensive.

(2) Excellent anti-vibration performance can be achieved by the parallel combination spring action of the composite coil spring 6 and the rubber spring housing 8.

(3) The adjustment nut 13 allows the spring pressure of the vibration absorber 4 to be optimally adjusted according to the load of the equipment.

(4) Since it can be freely attached and detached without being restricted by the size or shape of equipment, it can be easily and reliably used with existing equipment on-site, and even when equipment is subjected to unbalanced loads. Unbalanced loads can be dealt with by freely changing the mounting position.

(5) The clamp member 18 and the stopper 19 can reliably and stably support equipment at a predetermined position.

(6) Since a plurality of springs are housed separately in each housing chamber provided in the spring housing body, each spring is always held in a fixed position in a stable state.
Excellent spring function can be achieved without causing the springs to move erratically or become entangled with each other, and the container can protect the springs by acting as a cover for the springs.

(7) Since the board and the base and the top plate and the pedestal are fixed, for example, after installing the equipment, it is found that there is an eccentric center of gravity or an uneven load, and it becomes necessary to change the position of the vibration isolator. Traditionally,
It was necessary to use strong jacks to raise the required parts of the equipment before moving the vibration isolator, but in the case of this equipment, the gantry support can be moved by turning the required vibration isolator adjustment nuts. By pulling it down, the stand can be pulled down together with its top plate to create a gap between it and the equipment, and therefore the vibration isolator can be easily moved without using jacks.

As detailed above, according to the present invention, unlike conventional products, the device is small and lightweight, so it is extremely simple and easy to transport to the site and handle during facility work, etc., and can be provided at low cost. In addition, it is possible to optimally adjust and set the spring pressure of the vibration absorber, and it is possible to reliably and stably support equipment at a predetermined side position. It can be used reliably on-site, and when an uneven load occurs on equipment, it can be easily moved to deal with the uneven load, and it has various effects such as maintaining good vibration isolation performance. With this, the functions and effects of (6) and (7) above can be achieved.

[Brief explanation of the drawing]

The figures show an embodiment of the present invention; Fig. 1 is a partially cutaway plan view showing the state in which it is used in the side part of equipment, Fig. 2 is a side view thereof, and Fig. 3 is an enlarged cross-section of the main part. 4 is a sectional view taken along the line A--A in FIG. 3, and FIG. 5 is a plan view showing the arrangement of equipment. 1... Board, 3... Mount, 4... Vibration absorber, 5...
...Hollow base, 6...Spring, 7...Through hole, 8...Spring housing, 9...Threaded rod part, 1
0...Mounting rod, 11...Top plate, 12...
... Frame support, 13... Adjustment nut, 18... Clamp member.

Claims (1)

[Scope of utility model registration request] It consists of a board, a pedestal placed above the board, and a vibration absorber installed between the board and the pedestal. It is composed of a spring housing body which is housed in a spring housing body, each of which has its upper end projecting outward, and has a through hole in the center, and a pedestal support body in which a mounting rod with a threaded rod part is suspended below the top plate. Then, the spring housing is placed on the base, and the mounting rod of the frame support is inserted into the through hole of the housing so that the threaded part protrudes into the base, and the adjustment nut is screwed into the threaded part. The spring pressure of the vibration absorbers is configured to be adjustable, and the required number of vibration absorbers are arranged in the side direction of the pedestal, and the board and the base and the top plate and the pedestal are respectively fixed, and the pedestal is A vibration isolator constructed by providing clamp members for engaging equipment at required locations.