JPS61202252U - - Google Patents

Description

[Brief explanation of the drawing]

FIG. 1 is a side view showing an embodiment of the seat reclining device according to the present invention, FIGS. 2 to 4 are sectional views taken along the line - to - in FIG. 1, and FIG. FIG. 6 is a front view showing the stopper of the stepless adjustment mechanism, FIG. 6 is a sectional view taken along the line - in FIG. 5, and FIG. A line diagram showing the relationship between the angle adjustment ranges, Fig. 8 is a front view showing the hook plate in the same embodiment, Fig. 9 is a front view showing the arm plate in the same embodiment, and Fig. 10 is a conventional seat reclining device. FIG. 3 is a schematic side view showing the relationship between the coarse adjustment lock position and the fine adjustment angle range according to the invention. _X1 ...Coarse adjustment first lock position, _X2 ...Coarse adjustment second lock position, α...Fine adjustment angle range, β...Non-overlapping range, 1...Lower arm, 2...Upper arm, 2a...Inner gear, 3...Intermediate gear plate (ratchet) ), 3a...outer gear, 3b...engaging groove, 4...pawl, 4a...locking portion, 8...release lever, 12...rotating shaft, 24...operating handle, 26...belt, 37...stopper arm, 38
...Pin, 29a, 39...Stoppa.

Claims (1)

[Scope of utility model registration request] In a seat reclining device that includes a stepless adjustment mechanism that finely adjusts the reclining angle of the seat back and a coarse adjustment mechanism that coarsely adjusts the reclining angle to a plurality of lock positions, A seat reclining device characterized in that a non-overlapping range is provided in which seat back inclination angle ranges do not overlap each other by fine adjustment of a step adjustment mechanism.