Hinge, particularly for seat with adjustable back rest and metho

Details Hinge, particularly for seat with adjustable back rest and metho Hinge, particularly for seat with adjustable back rest and metho

1982-05-10

1984-09-04

Lyddane, William E.

Chairs and seats

Movable back

Tiltable

16354, 291592, 74804, A47C 124, B21K 130, B23P 1514

Patent

active

044693761

ABSTRACT:
A hinge has two hinge parts pivotally connected with one another and an adjusting and fixing device including interengaging external and internal gears, wherein each gear has an annular groove formed by deformation in the region of its teeth root circle so that during formation of the annular groove the material is displaced toward the teeth tips of the respective gear.

REFERENCES:
patent: 1352021 (1920-09-01), Opperman
patent: 3337940 (1967-08-01), Stihl et al.

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