JPS6229140U

JPS6229140U -

Info

Publication number: JPS6229140U
Application number: JP1985120566U
Authority: JP
Priority date: 1985-08-06
Filing date: 1985-08-06
Publication date: 1987-02-21

Description

[Brief explanation of the drawing]

第１図は本考案に係るシートリクライニング装
置の一実施例を示す正面図、第２図は第１図矢示
Ａ―Ａ′線の断面図、第３図は要部分解斜視図、
第４図ないし第５図は従来例の要部断面図である
。１……シート側アーム、２……シートバツク側
アーム、３……円筒状部材Ａ、４……円筒状部材
Ｂ、５……枢軸、６……内側コイルスプリング、
６ａ，６ｂ……内側コイルスプリングの折曲部、
７……外側コイルスプリング、７ａ，７ｂ……外
側コイルスプリングの折曲部、８……リリースレ
バー、１０，１１……リリースロツド。 FIG. 1 is a front view showing an embodiment of the seat reclining device according to the present invention, FIG. 2 is a cross-sectional view taken along the line A-A' in FIG. 1, and FIG. 3 is an exploded perspective view of the main parts.
4 and 5 are sectional views of main parts of the conventional example. DESCRIPTION OF SYMBOLS 1... Seat side arm, 2... Seat back side arm, 3... Cylindrical member A, 4... Cylindrical member B, 5... Pivot, 6... Inner coil spring,
6a, 6b...bent portion of inner coil spring,
7... Outer coil spring, 7a, 7b... Bent portion of outer coil spring, 8... Release lever, 10, 11... Release rod.

Claims

[Scope of utility model registration request]

a cylindrical member A fixed to the seat side arm;
The cylindrical member A and another cylindrical member B fixed to the seat back side arm having the same inner and outer diameters are engaged to be rotatable about a pivot fixed to the seat side arm, and the cylindrical member An inner coil spring having an outer diameter larger than the inner diameter of the cylindrical members A and B is inserted into the inner surface of the cylindrical members A and B with a reduced diameter, and an outer coil spring having an inner diameter smaller than the outer diameter of the cylindrical members A and B is inserted. Coil springs are inserted into the outer surfaces of the cylindrical members A and B with their diameters enlarged in the same winding direction as the inner coil springs, one ends of the bent portions of both springs are locked to the seat side arm, and the other ends are is locked to a release rod connected to a release lever, and the outer periphery of the inner spring expands with respect to the inner periphery of the cylindrical members A and B, and the cylindrical member A
, B. A continuously adjustable seat reclining device characterized in that a frictional force is generated by contracting and closing the inner circumference of the outer spring against the outer circumference of the outer spring, thereby holding the seat back immobile so as not to rotate relative to the seat.