Superfine tooth seat back adjuster
First Claim
1. A hinge fitting for vehicle seats having a tiltable backrest member comprising a first hinge member connectable to a seat rest member, a second hinge member connectable to a backrest member, pivot means connecting said hinge members for relative pivoting movement, an adjustment quadrant for regulating the operative position of said second hinge member relative to said first having a toothed sector centered on said pivot means provided with fine pitch teeth, toothed pawl means and integral dual side tension linkage mounted on said first hinge member on either side of said pawl and toothed sector and in relatively movalbe compressively clamping and release relationship with said pawl and toothed sector, and manual means for effecting said clamping and release relationships.
4 Assignments
0 Petitions
Accused Products
Abstract
A vehicle seat back adjuster for achieving fine increments of adjustment in the order of 1°, without resort to translation overdrive, through employment of reaction backup for teeth in the order of 1° pitch in an adjustment quadrant minimizing yield of components which could permit fine tooth disengagement.
34 Citations
25 Claims
- 1. A hinge fitting for vehicle seats having a tiltable backrest member comprising a first hinge member connectable to a seat rest member, a second hinge member connectable to a backrest member, pivot means connecting said hinge members for relative pivoting movement, an adjustment quadrant for regulating the operative position of said second hinge member relative to said first having a toothed sector centered on said pivot means provided with fine pitch teeth, toothed pawl means and integral dual side tension linkage mounted on said first hinge member on either side of said pawl and toothed sector and in relatively movalbe compressively clamping and release relationship with said pawl and toothed sector, and manual means for effecting said clamping and release relationships.
- 17. A hinge fitting for vehicle seats having a tiltable backrest member comprising a first hinge member connectable to a seat rest member, a second hinge member connectable to a backrest member, pivot means connecting said hinge members for relative pivoting movement, an adjustment quadrant centered on said pivot means for regulating the operative position of said second hinge member relative to said first, toothed means including equally spaced surfaces at least one of which is provided with fine pitch teeth for actuating said adjustment quadrant, toothed pawl means and integral dual side tension linkage mounted on said first hinge member on either side of said pawl and toothed means in relatively movable compressively clamping and release relationship with said pawl and equally spaced surfaces, and manual means for effecting said clamping and release relationships.
Specification