Title:
NEGATIVE PRESSURE-TYPE BOOSTER DEVICE
Document Type and Number:
WIPO Patent Application WO/2015/182733
Kind Code:
A1
Abstract:
The present invention addresses the problem of standardizing a front shell of a booster shell of a negative pressure-type booster device by modifying the shape of a reinforcement rib provided to the front shell so as to satisfy the demand for varying the installation pitch and installation angle of tie-rod holes with one and the same front shell. A front shell (2a) configuring a booster shell of a negative pressure-type booster device in combination with a rear shell includes a reinforcement rib (10) formed by bending the shells, wherein the reinforcement rib (10) is formed along a virtual ellipse of which the center is located at the center of the front shell (2a), with the major axes of the ellipse disposed on a line (L1) connecting the centers of two tie-rod holes (12) provided in the front shell (2a).
Inventors:
SUZUKI KIMIYASU (JP)
Application Number:
PCT/JP2015/065495
Publication Date:
December 03, 2015
Filing Date:
May 29, 2015
Export Citation:
Assignee:
ADVICS CO LTD (JP)
International Classes:
B60T13/56
Foreign References:
| JP2007076437A | 2007-03-29 | |||
| JPS56163953A | 1981-12-16 | |||
| JPH0642503U | 1994-06-07 |
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