Planetary gear reduction mechanism in particular for motor...

Details Planetary gear reduction mechanism in particular for motor... Planetary gear reduction mechanism in particular for motor...

2007-10-16

2007-10-16

Ridley, Richard (Department: 3682)

Machine element or mechanism

Engine starters

Automatic

C074S411000

Reexamination Certificate

active

10487954

ABSTRACT:
A reduction gearbox with an epicyclic gear train is provided for a motor vehicle starter. This gearbox includes a crown (30) comprising a outer crown part (31) and an inner crown part (32) carrying an internal set of teeth (33) together with shock absorbing elements (34). The the damping elements (34) are made in the form of plates disposed in seatings which consist of complementary recesses (36, 37) formed respectively in an outer peripheral face (38) of the inner crown part (32) and in an inner peripheral face (39) of the outer crown part (31). Each recess has a depth which increases in a direction of relative angular displacement between the two crown parts, considered from the peripheral surface, over a length (a) which corresponds to the length of the plate, to a value (b) which is substantially equal to the thickness of the plate.

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patent: 6664652 (2003-12-01), Chane-Waye
patent: 0 622 557 (1994-11-01), None
patent: 1 222 610 (1960-06-01), None

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