| 摘要 |
PURPOSE: A continuously operated-type vehicle seat-reclining device is provided to promote productivity and reduction of the cost by simplifying the constitution and by facilitating manufacture and assembling. CONSTITUTION: A continuously operated-type vehicle seat-reclining device(100) comprises an upper tooth bracket(101) and a lower tooth bracket(102) fixed to a seat back frame and a cushion frame in a state of having upper teeth(103) and lower teeth(104) the number of which is smaller than the number of the upper; a metal bearing(106) interposed in a cam hole(105) formed to the lower tooth bracket; a cam(110) interposed between the metal bearing and a cam-retaining ring(107) integrally projected on the upper tooth bracket with eccentricity in a wedge shape; wedge blocks(111,112) arranged on the sides of the cam, to restrict the movement of the cam; fitting projections(113,114) formed to the ends of the cams and the upper sides of the wedge blocks in a state of being interrupted by mutual engagement; operation projections(115,116) projected on the front of the cam and the wedge blocks; and a cam spring(118) combined to a spring groove(117) formed to the lower ends of the wedge blocks, to maintain the interrupted state of the wedge blocks by pushing the wedges toward the fitting projections; and a cover plate(120) combined from the outside of the lower tooth bracket by fixing a shaft projecting forward. The operation projections are situated to operation holes(121,122) of an elongated shape formed to the cover plate.
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