Title:
PHYSICAL QUANTITY SENSOR
Document Type and Number:
WIPO Patent Application WO/2011/071140
Kind Code:
A1
Abstract:
Provided is a physical quantity sensor having excellent impact resistance and sticking resistance.
The physical quantity sensor is configured to comprise a movable part (50) that is displaced in a height direction and a protruding stopper part (51) that is disposed opposite the movable part (50) in the height direction and restricts the displacement of the movable part (50). The outer periphery (51b) of the opposite surface (51a) to the movable part (50) of the stopper part (51) is provided with a first contact end (53) and a second contact end (54). The first contact end (53) is a portion at which the movable part (50) first comes into contact with the opposite surface (51a) when being displaced in the direction in which the movable part moves closer to the stopper part (51), and the second contact end (54) is a portion at which the movable part (50) first separates from the opposite surface (51a) when being displaced in the direction in which the movable part moves away from the state of contact with the stopper part (51). The length of contact with the movable part of the first contact end (53) is longer than the length of contact with the movable part of the second contact end (54).
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Inventors:
UTO YOSHITAKA (JP)
OKAWA HISANOBU (JP)
MIYATAKE AKIRA (JP)
KOBAYASHI TOSHIHIRO (JP)
TAKAHASHI TORU (JP)
SATO KIYOSHI (JP)
KIKUIRI KATSUYA (JP)
OKAWA HISANOBU (JP)
MIYATAKE AKIRA (JP)
KOBAYASHI TOSHIHIRO (JP)
TAKAHASHI TORU (JP)
SATO KIYOSHI (JP)
KIKUIRI KATSUYA (JP)
Application Number:
PCT/JP2010/072204
Publication Date:
June 16, 2011
Filing Date:
December 10, 2010
Export Citation:
Assignee:
ALPS ELECTRIC CO LTD (JP)
UTO YOSHITAKA (JP)
OKAWA HISANOBU (JP)
MIYATAKE AKIRA (JP)
KOBAYASHI TOSHIHIRO (JP)
TAKAHASHI TORU (JP)
SATO KIYOSHI (JP)
KIKUIRI KATSUYA (JP)
UTO YOSHITAKA (JP)
OKAWA HISANOBU (JP)
MIYATAKE AKIRA (JP)
KOBAYASHI TOSHIHIRO (JP)
TAKAHASHI TORU (JP)
SATO KIYOSHI (JP)
KIKUIRI KATSUYA (JP)
International Classes:
G01P15/02; G01P15/125; H01L29/84
Domestic Patent References:
| WO2008026331A1 | 2008-03-06 |
Foreign References:
| JP2001074771A | 2001-03-23 | |||
| JPH05172846A | 1993-07-13 | |||
| JP2000338126A | 2000-12-08 |
Attorney, Agent or Firm:
NOZAKI, Teruo et al. (JP)
Teruo Nozaki (JP)
Teruo Nozaki (JP)
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