Machine element or mechanism – Gearing – Directly cooperating gears
Reexamination Certificate
2005-01-18
2005-01-18
Bucci, David A. (Department: 3682)
Machine element or mechanism
Gearing
Directly cooperating gears
C074S402000
Reexamination Certificate
active
06843148
ABSTRACT:
The invention concerns a gear motor (1), in particular for driving vehicle equipment, comprising a rotor provided with a rotor shaft (6), a reduction gearbox housing (14) containing a cog wheel engaged in an endless screw of the shaft and capable of driving an output member (12). The invention is characterised in that it comprises means (12) for eliminating, under predetermined axial compression (F), all axial play between one end (6a) of the rotor shaft and the housing wall (13). Said means can comprise a plug (15) housed in the housing (14) end (13) and a piston (18), inserted between the plug (15) and the shaft (6) end (6a); the plug (15) exerts on the piston (18) and the shaft (6) the axial thrust (7) which is adjusted when being mounted, and is axially locked in the corresponding position by melting the housing (14) plastic material in the grooves or recesses (19) of the piston (18) surface, then in solidifying said plastic material. The suppression of axial play in the rotor shaft (6) eliminates all the disturbing noises caused by changes in rotational direction.
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Bucci David A.
Carlson & Gaskey & Olds
McAnulty Timothy
Meritor Light Vehicle Systems (France)
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