Method for manufacturing toothed gears for a reclining car seat

Details Method for manufacturing toothed gears for a reclining car seat Method for manufacturing toothed gears for a reclining car seat

1993-03-19

1995-03-21

Echols, P. W.

Metal working

Method of mechanical manufacture

Gear making

B21D 5328

Patent

active

053984080

ABSTRACT:
A toothed disc for the adjustment device of a reclining car seat and a method of manufacturing the same. A material strip is placed onto a precision blanking machine. The material strip is stamped so that a portion of the material strip is displaced and formed in a first direction away from the material strip, the portion corresponding to at least one of addendum circle and a hub of a toothed gear. Next, the portion is formed in a direction towards the material strip, whereby the material corresponding to at least one of the addendum circle and a hub of the toothed gear is thickened. Then, a toothed gear is formed in the material strip. Lastly, the toothed gear is blanked from the material strip. All of the aforementioned steps are performed in sequence.

REFERENCES:
patent: 2072308 (1937-03-01), Labin
patent: 2179967 (1939-11-01), Thompson
patent: 4254540 (1981-03-01), Bilak
patent: 4469376 (1984-09-01), Pelz

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