Rotation angle detector having detection heads disposed...

Details Rotation angle detector having detection heads disposed... Rotation angle detector having detection heads disposed...

2007-04-16

2008-10-14

Assouad, Patrick (Department: 2862)

Electricity: measuring and testing

Magnetic

Displacement

C324S207210

Reexamination Certificate

active

07436174

ABSTRACT:
The present invention relates to a rotation angle detector for use mainly in detecting rotation angles of a vehicle's steering shaft, with a simplified and low-cost configuration. For this purpose, a first detection head and a second detection head are disposed perpendicularly to a rotor, and a spur gear formed outside the periphery of the first detection head is allowed to engage with a face gear formed on the bottom face of the periphery of the rotor. This can provide the first detection head with a simplified configuration in which magnetic sensors are provided together with a controller on a single circuit board. The configuration enables the rotation angle detector to perform the detection reliably and cheaply.

REFERENCES:
patent: 6909282 (2005-06-01), Onishi et al.
patent: 6941241 (2005-09-01), Lee et al.
patent: 7073398 (2006-07-01), Kondo et al.
patent: 2002/0097044 (2002-07-01), Tateishi et al.
patent: 2005/0258824 (2005-11-01), Uehira et al.
patent: 2005-156163 (2005-05-01), None
Computer translation of Detailed Description section of JP 2005-156163 A into English from Japanese Patent Office Website, printed Dec. 26, 2007, 6 pages.

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