Title:
RECLINING MECHANISM RATCHET, METHOD FOR MANUFACTURING RECLINING MECHANISM RATCHET, AND APPARATUS FOR MANUFACTURING RECLINING MECHANISM RATCHET
Document Type and Number:
WIPO Patent Application WO/2014/148357
Kind Code:
A1
Abstract:
A reclining mechanism ratchet (50) which is tiltably supported with respect to a base plate and on which an annular internal gear (54) surrounding recesses is formed on a surface-side facing the base plate, wherein a rear-side annular portion (60) having an outer peripheral surface positioned at a radial position between the pitch circle and the addendum circle of the internal gear (54) is formed on the rear side surface of the ratchet (50). As a result, it is possible to form the internal gear (54) with high-precision so as to produce the ratchet (50) in a smaller size, and also to improve the durability of a die for forming the internal gear (54).
Inventors:
HIGASHI JUNICHI (JP)
Application Number:
PCT/JP2014/056706
Publication Date:
September 25, 2014
Filing Date:
March 13, 2014
Export Citation:
Assignee:
SHIROKI CORP (JP)
International Classes:
A47C1/025; B60N2/22
Foreign References:
| JP2004049771A | 2004-02-19 | |||
| JP2007297047A | 2007-11-15 | |||
| FR2845045A1 | 2004-04-02 |
Attorney, Agent or Firm:
MIURA, Kunio et al. (JP)
Kunio Miura (JP)
Kunio Miura (JP)
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