Title:
POSITION SENSOR AND VEHICLE SEAT POSITION SENSOR
Document Type and Number:
WIPO Patent Application WO/2008/029702
Kind Code:
A1
Abstract:
A position sensor comprises a movable member movably disposed on a base member
and a proximity sensor for measuring the position of the movable member. The proximity
sensor has a magnetic field generating section, a sensing section for sensing
a variation of the magnetic field according to the displacement of the movable
member, and a nonmagnetic projecting section projecting toward an object to
be sensed. By using the position sensor, it is possible to avoid surrounding small
magnetic materials from approaching the magnetic field generating section
of the proximity sensor by means of the nonmagnetic projecting section projecting
from the proximity sensor toward the object. Therefore, adhesion of the surrounding
magnetic materials to the proximity sensor is prevented thereby to improve the
sensing accuracy. In a seat position sensor containing the constitution of this
position sensor, the base member is constituted of a lower rail fixed to a vehicle
body floor, and the movable member is constituted of an upper rail fitted to a vehicle
seat, slidably engaged with the lower rail, and fixable at an arbitrary slide
position on the lower rail.
Inventors:
NISHIDE HARUTOMI (JP)
Application Number:
PCT/JP2007/066883
Publication Date:
March 13, 2008
Filing Date:
August 30, 2007
Export Citation:
Assignee:
HONDA MOTOR CO LTD (JP)
NISHIDE HARUTOMI (JP)
NISHIDE HARUTOMI (JP)
International Classes:
B60N2/06; H01H36/00; B60N2/07; B60N2/90; B60R21/26; G01B7/00
Foreign References:
| JP2006151334A | 2006-06-15 | |||
| JPH09511357A | 1997-11-11 | |||
| JP2003337004A | 2003-11-28 | |||
| JP2005041245A | 2005-02-17 | |||
| JP2004259455A | 2004-09-16 |
Attorney, Agent or Firm:
SHIGA, Masatake et al. (Yaesu Chuo-k, Tokyo 53, JP)
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