JPS5838174Y2 - Anti-vibration bearing device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement in a vibration-proof support device that supports a support object on a bolt via an elastic material such as rubber.

Conventionally, in this kind of zero vibration bearing device, in order to absorb vertical and horizontal vibrations, a pair of shock absorbers 3°3 are placed opposite each other with nuts 2, 2 attached to a bolt 1, as shown in Fig. 1. Annular protrusions 5, 5 are integrally molded on the edges of the bolt insertion holes 4, 4 on the opposing surfaces of both buffer bodies 3 and 30, and both protrusions 5, 5 are hung. Insert into the hole 7 of the support piece 6 of a ceiling nozzle, etc., butt each other, and hold the support piece 6 between the end faces 8, 8, or only one shock absorber 3 as shown in Fig. 2. It is known that in forming the protrusion 5, the protrusion 5 is fitted into the hole 7 of the support piece 6, and the support piece 6 is sandwiched between the end surfaces 8, 8 of both buffer bodies 3.

However, in this type of conventional device, as shown in FIG. 3, the hole 1 of the support piece 6 may fall off from the protrusion 5, and even if the bolt 1 and the support piece 6 are in contact, it may not be noticed. Moreover, as shown in FIG. 4, there are cases where the thickness of the support piece 6 is smaller than the height of the protrusion 5, and in such cases, a sufficient vibration-proofing effect cannot be obtained.

In view of the above points, the present invention completely prevents the bearing piece from shifting and coming into contact with the bolt, completely isolates the bolt from the bearing piece, and provides sufficient clamping regardless of the thickness of the bearing piece. The purpose is to provide a vibration isolating support device that is easy to manufacture, and its gist is to provide a pair of cylindrical shock absorbers made of an elastic material with a bolt insertion hole in the center; In the anti-vibration support device, the shock absorbers are fitted with each other and attached with bolts, and a support piece is sandwiched between the shock absorbers. - or two or more insertion legs and - or two or more insertion recesses are formed alternately, and a support piece having a hole surrounding the insertion leg is sandwiched on the outside of one end surface of the buffer body. forming a plane that fits each insertion leg of the one buffer body into the corresponding insertion recess of the other buffer body, and the other corresponding to each insertion recess of the one buffer body; A vibration isolating device is characterized in that a support piece is sandwiched between the flat surfaces of a pair of shock absorbers by fitting the insertion legs of the shock absorbers into each other.

Next, the implementation of the present invention will be explained with reference to FIG. 5 and the following drawings.

In this example, a 71 banger for a suspended ceiling is vibration-proof supported on a hanging bolt, and in the figure, 10 is a bolt, 11.11 is a buffer, 12 and 12 are tightening nuts, and 13//i banger is constructed. 14 is a hole in the support piece 13, and 15 is a channel material for a suspended ceiling.

The buffer bodies 11 and 11U are made of an elastic material such as rubber or synthetic rubber, and are each molded into the same shape.

This buffer body 11 has a bolt insertion hole 16 in the center, and a pair of insertion legs 17 which are located on opposite end faces and protrude from the edges of the bolt insertion hole 16 to face each other. 17 is fitted into the shape.

The pair of shock absorbers 11, 11 formed in this manner face each other and fit the insertion legs 17.17 on one side into the insertion recesses 18, 18 on the other side, thereby creating a gap between the end surfaces 11a, 11a. A cylindrical partition wall 19 is formed.

And, the insertion leg portions 17 of the pair of buffer bodies 11', 11
．． 17 are respectively inserted into the holes 14 of the support piece 13 from above and below and connected to each other, and the bolts 10 are inserted centrally and fixed with the tightening pads 12 to support the support piece 13.

In addition, 11b in the figure is a metal washer fixed to the end face of the buffer body 11.

Further, in the above embodiment, a pair of insertion legs 11 are formed to protrude from the edge of the bolt insertion hole 16 of the buffer body 11, facing each other, but the present invention is not limited to this.
The insertion leg portion 17 is molded to protrude from one or more of the two shock absorbers I.
It is only necessary that L11 be fitted into each other.

The anti-vibration support device of the present invention is constructed as described above, and is provided with insert legs and insert recesses alternately on the peripheral edge of the bolt insertion hole on the joint end surface of a pair of shock absorbers, and has a shock absorber on one side. Because the insertion leg of the body fits into the insertion recess on the other side and is inserted into the hole of the support piece, the support piece and bolt can be completely isolated, making installation easier. It is something.

Furthermore, since the insertion legs are not butted against each other, the insertion depth Act is dynamically adjusted according to the thickness of the support piece, so that effective support can be achieved regardless of the thickness of the support piece.
In addition, since both buffer bodies have the same shape, there is no need to separate them, and one mold can be used for mass production, which is convenient for manufacturing.

[Brief explanation of the drawing]

Figures 1 and 2 are longitudinal cross-sectional views showing separate conventional examples, Figures 3 and 4 are vertical cross-sectional views showing poor bearing conditions in the conventional examples, and Figure 5 is one embodiment of the present invention. 6 is a perspective view showing the buffer body in the same embodiment, FIG. 7 is a plan view of the same, FIG. 8 is a sectional view taken along line I-I in FIG. 7, and FIG. It is a sectional view taken along the line J-IJ. 10...Bolt, 11...Buffer, 1
2...Tightening nut, 13...Bearing piece,
14...hole, 16...bolt insertion hole,
11...Plug-in leg part, 18...Plug-in recessed part.

Claims (1)

[Scope of utility model registration request] A pair of cylindrical buffer bodies made of an elastic material with a bolt insertion hole in the center are provided, the pair of buffer bodies are fitted together and attached with bolts, and a support piece is sandwiched between the two buffer bodies. In the anti-vibration bearing device, one end face of the shock absorber has an insertion leg portion on the ring and two or more insertion recesses along the edge of the bolt insertion hole in the center of one end surface of the buffer body. A flat surface is formed alternately on the outer side of one end surface of the buffer body for holding a support piece having a hole surrounding the insertion leg portion, and each of the insertion leg portions of the one buffer body is connected to the other side. The flat surfaces of the pair of buffer bodies are fitted into the respective four insertion parts of the buffer bodies, and the respective insertion legs of the other buffer body corresponding to the respective insertion recesses of one of the buffer bodies are fitted. A vibration isolator characterized by having a support piece sandwiched between them.