JPH01166146U

JPH01166146U -

Info

Publication number: JPH01166146U
Application number: JP5638288U
Authority: JP
Priority date: 1988-04-26
Filing date: 1988-04-26
Publication date: 1989-11-21
Anticipated expiration: 2003-04-26
Also published as: JPH0529560Y2

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例たる自動車用サスペ
ンシヨンブツシユを示す縦断面図であり、第２図
はかかるサスペンシヨンブツシユを構成するゴム
弾性体の加硫成形品を示す縦断面図である。また
、第３図は、第２図に示されているゴム弾性体の
形状の特徴を説明するための比較例としてのゴム
弾性体を示す、第２図に対応する縦断面図である
。更に、第４図は、従来の筒状ゴムブツシユを示
す縦断面図である。１０：内筒金具、１２：外筒金具、１４：ゴム
弾性体、２２：球状凸面、２４：取付溝、２８：
円弧状凸面、３２：突条。 FIG. 1 is a longitudinal sectional view showing a suspension bushing for an automobile, which is an embodiment of the present invention, and FIG. 2 is a longitudinal sectional view showing a vulcanized product of a rubber elastic body constituting the suspension bushing. It is. Further, FIG. 3 is a longitudinal sectional view corresponding to FIG. 2, showing a rubber elastic body as a comparative example for explaining the characteristics of the shape of the rubber elastic body shown in FIG. Furthermore, FIG. 4 is a longitudinal sectional view showing a conventional cylindrical rubber bushing. 10: Inner cylinder metal fitting, 12: Outer cylinder metal fitting, 14: Rubber elastic body, 22: Spherical convex surface, 24: Mounting groove, 28:
Arc-shaped convex surface, 32: protrusion.

Claims

[Claim for Utility Model Registration] By fitting the outer cylinder fitting onto the outer peripheral surface of the cylindrical rubber elastic body fixed to the outer peripheral surface of the inner cylinder metal fitting, the inner cylinder fitting and the outer cylinder fit together. A cylindrical rubber bush in which a metal fitting and a metal fitting are arranged at a predetermined distance in the radial direction, and both metal fittings are elastically connected by the tubular rubber elastic body, the axially intermediate portion of the inner cylinder fitting. The outer circumferential surface is an outwardly convex spherical convex surface, and the inner circumferential surface of the outer cylindrical metal fitting is inwardly convex, with an inner diameter increasing from the axial center toward both axial ends. The outer cylinder of the cylindrical rubber elastic body has an arcuate convex surface, and the minimum inner diameter part of the outer cylinder metal fitting and the maximum outer diameter part of the inner cylinder metal fitting are positioned opposite to each other in the radial direction. The outer circumferential surface on which the metal fitting is externally fitted is made larger in diameter by a predetermined dimension on both sides in the axial direction than the arc-shaped concave surface corresponding to the inner peripheral surface of the outer cylinder metal fitting. 1. A cylindrical rubber bushing characterized in that a press-fitting rate is set larger at both side portions of the outer cylindrical metal fitting than at the axial center portion thereof.