Title:
ANTIVIBRATION APPARATUS
Document Type and Number:
WIPO Patent Application WO/2013/046628
Kind Code:
A1
Abstract:
Provided is an antivibration apparatus having a novel structure allowing separate adjustment of each spring on a main rubber elastic body according to the required spring characteristics. An outer circumferential linking rubber (28) and a first and second axial-direction projecting rubber (30, 32) are formed on the main rubber elastic body (14). An outer attachment member (18) is provided on both sides of a stepped part (42) with a small-diameter cylinder (44) and a large-diameter cylinder (46), an inward-projecting part (48) being formed in the opening of the small-diameter cylinder (44) and an inner circumferential cylinder wall (58) being formed on a restraining member (54) affixed to the opening of the large-diameter cylinder (46). The outer circumferential linking rubber (28) is disposed in the space facing the direction perpendicular to the axis of an inner attachment member (12) and the inward-projecting part (48). The first axial-direction projecting rubber (30) is held by compression in the axial direction between the inner attachment member (12) and the inward-projecting part (48). The second axial-direction projecting rubber (32) is held by compression in the axial direction between the restraining member (54) and the inner attachment member (12) and stepped part (42), and is also held by compression in the direction perpendicular to the axis between the inner circumferential cylinder wall (58) and the large-diameter cylinder (46).
Inventors:
MIZUKAWA HIROKI (JP)
SHIMIZU YORISHIGE (JP)
ICHIKAWA HIROYUKI (JP)
SHIMIZU YORISHIGE (JP)
ICHIKAWA HIROYUKI (JP)
Application Number:
PCT/JP2012/006055
Publication Date:
April 04, 2013
Filing Date:
September 24, 2012
Export Citation:
Assignee:
TOKAI RUBBER IND LTD (JP)
International Classes:
F16F15/08; F16F1/38
Foreign References:
| JP2008144921A | 2008-06-26 | |||
| JP2006177544A | 2006-07-06 | |||
| JP2003202053A | 2003-07-18 | |||
| JP2009036295A | 2009-02-19 | |||
| JP2010091042A | 2010-04-22 | |||
| JPH07145851A | 1995-06-06 | |||
| US20020056953A1 | 2002-05-16 |
Attorney, Agent or Firm:
KASAI, Yoshitaka et al. (JP)
Yoshitaka Kasai (JP)
Yoshitaka Kasai (JP)
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Claims: