JPS6319645Y2 - - Google Patents

Description

[Detailed description of the invention] This proposal relates to an improved configuration of elastic support devices for electric compressors, electric motors, etc., and is particularly designed to prevent shock absorbers from sliding against the periphery of the through holes in the legs during long-term use, causing damage or cracks. This prevents it from deteriorating quickly.

Conventionally, this kind of device has a bolt 2 installed on a base 1 as shown in FIG. 1, and a lower buffer body 3,
The coil spring 4, the upper buffer body 5, and the leg body 7 of the main body 6 of the device are sequentially mounted through the coil spring 4, the engagement body 8 integrated with the upper buffer body 5 is made to protrude upward from the through hole 9 of the leg body 7, and the bolt 2 The overhanging edge 8A of the engaging body 8 was pressed against the leg body 7 through a washer 11 with a nut 10 screwed into the leg body 7. Therefore, the leg body 7 swings up and down due to the elasticity of the coil spring 4 etc. due to the vibration of the device main body 6 etc. Therefore, the engaging body 8 is always in vertical sliding contact with the periphery of the through hole 9 of the leg body 7, and the engaging body 8 made of a soft material such as rubber or synthetic resin can be used for a long period of time while the leg body 7 is made of a hard material such as a steel plate. During use, they were rubbed and damaged, and cracks occurred, resulting in rapid deterioration. In particular, if the periphery of the opening of the through hole 9 in the leg body 7 is burr-like after being drilled, the above-mentioned disadvantages will be even more severe.

The present invention has been made in consideration of the above points, and will be described below with reference to Figs. 2 and 3.

A lower plate-like body 22 is attached to a base 21 by welding or the like, and a lower shock absorber 24, a coil spring (elastic body) 25, an upper shock absorber 26, and a leg body 28 of the main body 27 of the device and the engaging body 29 are sequentially penetrated and fitted, and then the nut 30 is inserted into the bolt 23.
are screwed together to elastically support the device main body 27 on the base 21. The lower buffer body 24 is made of an elastic member such as rubber or synthetic resin, and has an annular groove 31 opened on the upper surface thereof, into which the lower end of the coil spring 25 is inserted. The upper buffer body 26 is made of an elastic member such as rubber or synthetic resin, and is loosely fitted into the coil spring 25 and has a flange shape that extends outward from the top and rests against the upper end surface of the coil spring 25. An edge 26A is formed, and the inner diameter of the central through hole 32 is approximately the same diameter as the through hole 33 of the leg body 28. The engaging body 29 is molded from an elastic member such as rubber or synthetic resin material,
A hanging portion 29A that fits into the through hole 33 of the leg body 28 and the central through hole 32 of the upper buffer body 26 and an overhanging edge 29B having a larger diameter than the through hole 33 that extends outward and abuts the upper surface of the leg body 28 are integrated. As it is molded,
A protective cylinder 34 made of a hard material with high strength such as metal or hard synthetic resin is embedded and integrally formed into a substantially tangled shape. This protective cylinder 34 has an upper end protruding edge 34A extending outwardly from the protruding edge 2 of the engaging body 29.
9B and the hanging portion 29 of the engaging body 29
A protection portion 34B hanging down along the direction A is exposed to the outside so as to cover the outer periphery of the hanging portion 29A, and is brought into contact with the periphery of the through hole 33 of the leg body 28. Although the lower buffer body 24 and the upper buffer body 26 are provided, the performance will be improved, but they are not necessarily required.
As shown in FIG. 3, the protruding edge 34A of the engaging body 29
It may be completely buried in the overhanging edge 29B.

As described above, in this case, a hard protective cylinder is provided between the outer peripheral surface of the hanging part of the engaging body and the inner peripheral edge of the through hole of the leg body, so the protective cylinder reinforces the engaging body and reduces damage and deterioration of the engaging body. At the same time, the outer periphery of the hanging part of the engaging body that comes into sliding contact with the periphery of the through hole of the leg body is covered with a protective cylinder,
Since the engaging body does not come into direct sliding contact with the periphery of the through hole of the leg, the engaging body is prevented from being rubbed by the leg and being damaged or cracked. Furthermore, the protective tube can be integrally combined at the same time when molding the engaging body, and molding is simple.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a main part of a conventional device, FIG. 2 is a sectional view of a main part of the device of the present invention, and FIG. 3 is a sectional view of a main part of another embodiment of the present invention. 28...leg body, 29...engaging body, 34...protection tube.

Claims (1)

[Scope of utility model registration request] a base; an elastic body provided on the base to support the legs of the device body; a bolt whose lower part is attached to the base and passes through the elastic body; A soft engaging body whose hanging part is fitted into a through hole of the body, and a nut screwed into the upper part of the bolt, and a hard protection is provided between the outer peripheral surface of the hanging part and the inner peripheral edge of the through hole. An elastic support device characterized by being provided with a tube.