Title:
SUSPENSION DEVICE AND ASSEMBLY METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2021/157408
Kind Code:
A1
Abstract:
The present invention realizes a structure for a suspension device (1) that can be readily assembled and can readily secure the total contraction amount possible by a coil spring. A bearing unit (5) is disposed between a section of a ball screw shaft (4) on the other axial side and an upper shell (2). A side surface, on the one axial side, of a pressing plate (35) that constitutes the bearing unit (5) and is prevented from rotating relative to the upper shell (2) is abutted against a side surface, on the other axial side, of a flange section (9) of the upper shell (2), with a stopper holder (50) therebetween. The bearing unit (5) supports the ball screw shaft (4) in the upper shell in a manner enabling rotation of the ball screw shaft (4). The circumscribed circle diameter of a ball nut (6) and an inner tube (61) is smaller than the inner diameter dimension of the flange section (9). In other words, an intermediate assembly (124) including the ball nut (6) and the inner tube (61) can pass through the inner side, in the radial direction, of the flange section (9) of the upper shell (2) during assembly of the suspension device (1).
Inventors:
YAMAMOTO SHIN (JP)
SUSHI TAKAHIRO (JP)
KYO CYOU (JP)
OIKE MITSURU (JP)
SUZUKI SHUNSUKE (JP)
SUSHI TAKAHIRO (JP)
KYO CYOU (JP)
OIKE MITSURU (JP)
SUZUKI SHUNSUKE (JP)
Application Number:
PCT/JP2021/002474
Publication Date:
August 12, 2021
Filing Date:
January 25, 2021
Export Citation:
Assignee:
NSK LTD (JP)
International Classes:
B60G17/015; F16F15/03; F16H25/20; F16H25/22
Domestic Patent References:
| WO2011142039A1 | 2011-11-17 | |||
| WO2013065674A1 | 2013-05-10 |
Foreign References:
| JP2005090697A | 2005-04-07 | |||
| JP2008279975A | 2008-11-20 | |||
| JPH0459408A | 1992-02-26 | |||
| JP2010228579A | 2010-10-14 |
Other References:
See also references of EP 4011658A4
Attorney, Agent or Firm:
KIWA INTERNATIONAL (JP)
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