Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
March 16, 2010
Patent Application Number
11593559
Date Filed
November 7, 2006
Patent Primary Examiner
Patent abstract
The present invention relates to a reclining device that includes an external teeth gear and an internal teeth gear and in which the rotation axis of one of the external teeth gear and the internal teeth gear revolves around the rotation axis of the other. The present invention aims to provide a reclining device of which the operation force is small and the operation force varies little. To achieve the aim, one of (a) the plane of each of the external teeth 31b that engages with the internal teeth 32b and (b) the plane of each of the internal teeth 32b that engages with the external teeth 31b is arranged to be flat, and the other of (a) and (b) is arranged to be convex.
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