Step down gear train, more specifically for an adjusting...

Details Step down gear train, more specifically for an adjusting... Step down gear train, more specifically for an adjusting...

2006-05-09

2006-05-09

Wright, Dirk (Department: 3681)

Planetary gear transmission systems or components

Planet periphery surrounds axis of interacting gear

Reexamination Certificate

active

07041024

ABSTRACT:
A step down gear train, more specifically for an adjusting device of a motor vehicle seat, comprising an output shaft (22) rotating about an output axis (34), a pinion (20) that is connected to the output shaft (22), a housing (24) that comprises a housing portion (26) which is located in immediate proximity to the pinion (20) and has a passageway (28) for the output shaft (22), a first fixed gear wheel having external teeth that is connected to the housing portion (26) and comprises a bearing hole (32) which is centered on the output axis (34), a second gear wheel having external teeth that is connected to the pinion (20) and comprises a bearing protrusion (38) which is adapted to mate with the bearing hole (32), a cam gear (39) having internal teeth that meshes with both the first and the second gear wheel (30, 36), that has a gear axis which is offset an eccentricity value e relative to the output axis (34), that has a bearing hole (44) which is adapted to mate with the output shaft (22) and has the same axis as the output shaft (22) and an input shaft (52) that is in direct or indirect rotating communication with the cam gear (39).

REFERENCES:
patent: 4379976 (1983-04-01), Pitchford et al.
patent: 6543850 (2003-04-01), Becker et al.

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