Title:
TIRE PNEUMATIC PRESSURE DETECTING DEVICE
Document Type and Number:
Japanese Patent JPH06293205
Kind Code:
A
Abstract:
PURPOSE: To provide a tire pneumatic pressure detecting device capable of detecting pneumatic pressure by reversing the pole of a magnet without being affected by a centrifugal force.
CONSTITUTION: When a tire inflation pressure is lowered to retract a bellows 5, and the spring force of a spring 7 exceeds the attracting force of a magnet, a rotor magnet 3 is separated from a set magnet 4. Then the rotor magnet 3 is rotated by a resiliency of a magnet 8 for reverse rotation, pulled by an attraction force of the magnet 8 for reverse rotation, and then stopped by a stopper 15. Thus the magnetic pole of the rotor magnet 3 is reversed to detect the lowering of the tire pneumatic pressure.
Inventors:
TSUDA HIROSHI
IWASE KOJI
NOMURA TAKESHI
MATSUI KAZUMA
IWASE KOJI
NOMURA TAKESHI
MATSUI KAZUMA
Application Number:
JP18127793A
Publication Date:
October 21, 1994
Filing Date:
July 22, 1993
Export Citation:
Assignee:
NIPPON DENSO CO
International Classes:
B60C23/00; B60C23/02; G01L17/00; (IPC1-7): B60C23/00; B60C23/02; G01L17/00
Attorney, Agent or Firm:
Hirohiko Usui
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