JPH0132565Y2 - - Google Patents

Description

[Detailed description of the invention] [Technical field] This invention relates to a suspension support for supporting a shock absorber and a coil spring to the body in an automobile suspension, mainly a MacPherson strut type suspension. be.

[Prior art]

Conventional suspension supports have a total of three components: an atsupa support with an elastic body, a spring seat, and a spring insulator made of an elastic material.
It was made up of parts. Therefore, problems have arisen in terms of equipment weight, cost, and installation space.

[Purpose of invention]

Therefore, the purpose of this invention is to provide a suspension support that can reduce the weight of equipment, reduce costs, and narrow the installation space.

[Structure of the idea]

In order to achieve the above object, this invention is based on a strut-type suspension in which an upper flange and a lower flange are formed on the outside of a substantially cylindrical inner bracket fixed to the upper end of the piston rod of the shock absorber. An annular elastic body is fitted into the bracket with it sandwiched between both flanges, and an upper support part and a lower support part are provided with grooves formed on the outside of the elastic body and projecting upward and downward, and An outer support part is provided on the outside of the lower support part to which the upper end of the coil spring comes into contact, and an outer bracket fixed to the car body is fitted into the groove of the elastic body. The upper support part is sandwiched between the inner bracket and the outer bracket, and the lower support part of the same elastic body is sandwiched between the outer bracket and the coil spring. The role of each part of the oscillator is fulfilled by one part.

〔Example〕

An embodiment of this invention will be described below with reference to the drawings. In FIG. 1, which shows a cross section of the suspension support, an inner bracket 11 is fixed coaxially to the upper end of a piston rod 10 of a shock absorber. This inner bracket 11 is a cylindrical body 1 having a cylindrical shape and having an annular mounting flange 13 projecting inward at its lower end.
2 and an annular sheet 14 bonded to the lower surface of the mounting flange 13 by welding, and the cylindrical body 1
Two mounting flanges 13 are fastened to the piston rod 10 with nuts 15 and 16. On the outside of the inner bracket 11, there is an upper flange 17 annularly projecting from the upper end of the cylinder 12, and a lower flange 18 on the outer periphery of the seat 14 that projects from the cylinder 12.
is formed. The inner bracket 11 has an annular elastic body 19 attached to both flanges 1.
It is fitted between 7 and 18. A concave groove 20 is formed in an annular shape on the outside of the elastic body 19, and an upper support part 21 and a lower support part 22 that project upward and downward are provided. Lower support part 22
An outer support portion 24 is provided protruding from the outer side of the coil spring 23 to which the upper end of the coil spring 23 comes into contact. In addition,
A protrusion 25 is formed in an annular shape at the outer end of the lower surface of the lower support portion 24 to prevent the coil spring 23 from shifting. The concave structure 20 of the elastic body 19 has a bolt 27 and a nut 2 attached to the body 26 of the automobile.
An outer bracket 29 fixed by 8 is fitted. Outer bracket 29 is elastic body 1
The upper support part 21 of the elastic body 19 is formed into an annular shape with a U-shaped cross section along most of the outer side surfaces except for the outer side of the upper support part 21 of the elastic body 19. The lower support portion 24 of the elastic body 19 is held between the horizontal portion 31 of the outer bracket 29 and the upper end of the coil spring 23. In addition,
In the figure, reference numeral 32 indicates a bound stopper disposed below the inner bracket 11 at the upper end of the piston rod 10, and reference numeral 33 indicates a cap 33 fitted onto the upper portion of the cylindrical body 12 of the inner bracket 11. Further, as is well known, the lower end of the outer cylinder of the shock absorber (not shown) and the lower end of the coil spring 23 are supported by a suspension arm on which a wheel of the strut suspension is mounted or a member on the arm side.

In the suspension support described above, as shown in FIG.
8 and the horizontal portion 31 of the outer bracket 29, absorption occurs through compression and shear against the elasticity of the lower support portion 22 of the elastic body 19 (particularly the portion clearly indicated by the broken line circle A1). be done. Also, the load applied downward to the piston rod 10 (arrow B)
Due to the relative proximity of the upper flange 17 of the inner bracket 11 and the upper end flange portion 30 of the outer bracket 29, the upper support portion 21 of the elastic body 19
It is absorbed by compression against the elasticity of (particularly the part indicated by the broken line circle B1). Further, the reaction force (arrow C) of the coil spring 23 is received by the elasticity of the outer support portion 24 of the elastic body 19 (particularly the portion indicated by the broken line circle C1).

Therefore, the suspension support described above, together with the inner bracket 29, plays the role of a conventional top support, the outer bracket 29 also plays the role of a conventional spring seat, and the elastic body 19 acts as a spring insulator. It will also play a role. That is, the outer bracket 29 serves both as an outer bracket as a top support and as a spring seat, and the elastic body 19 serves as both an elastic body as a top support and as a spring insulator.

Note that the elastic body 19 may be adhered to the inner bracket 11 and the outer bracket 29, but
Both brackets 1 are simply fitted using elasticity.
1 and 29, it is possible to reduce manufacturing costs and improve the degree of freedom in supporting characteristics.

[Effect of idea]

That is, according to this invention, unlike the conventional one in which the Atsupa support, spring seat, and spring insulator are composed of separate parts,
Since each part fulfills the role of each conventional part, it is possible to reduce the number of parts by two parts compared to the conventional one, thereby reducing the weight of the equipment.
It is possible to reduce costs and narrow the installation space.

[Brief explanation of the drawing]

The drawing shows one embodiment of this invention.
The figure is a sectional view of the suspension support, and FIG. 2 is a schematic explanatory view thereof. 10... Piston rod, 11... Inner bracket, 17... Upper flange, 18... Lower flange, 19... Elastic body, 20... Concave groove, 21...
...Upper support part, 22...Lower support part, 23...Coil spring, 24...Outer support part, 26...
Body, 29...outer bracket.

Claims (1)

[Scope of utility model registration request] In a strut type suspension, an upper flange and a lower flange are formed on the outside of a roughly cylindrical inner bracket fixed to the upper end of the piston rod of the shock absorber, and an annular elastic body is installed between both flanges. The elastic body is fitted in a sandwiched state, and has a concave groove formed on the outside of the elastic body and an upper support part and a lower support part that protrude upward and downward, and the upper end of the coil spring is installed outside the lower support part. a protruding outer support portion to which the portion is abutted;
An outer bracket fixed to the car body is fitted into the groove of the elastic body, and the upper support part of the elastic body is held between the inner bracket and the outer bracket, and the lower support part of the elastic body is held between the outer bracket and the outer bracket. A suspension support that is sandwiched between a bracket and a coil spring.