Back to results
US 5,998,895 AGranted
Seal for starter motor drive
AssigneeJohnson Electric Automotive, Inc.
InventorsRobert Thrasher, Eduardo Rodriguez
Life of this patent
Estimating the term…
Abstract
An improved drive arrangement for a starter motor includes a rubber cushion between a drive plate and a pinion gear. The rubber cushion has seals at inner and outer locations which seal against the drive plate. In this way, the area between the drive plate and the rubber cushion is sealed to prevent contaminants from reaching the area and harming the connection between the drive plate and cushion.
Claims7
A drive assembly for a starter motor comprising:
- an electric motor having a drive shaft, said drive shaft having a thread over at least a portion of its axial length;
- a drive plate having an internal thread received on said portion of said drive shaft;
- a pinion gear to be driven by said drive shaft, said pinion gear having gear teeth to selectively engage a portion of an engine starter, said drive plate being positioned closer to said motor than said pinion gear;
- and
- a cushion positioned between said drive plate and said pinion gear, said cushion having a channel receiving a flange portion of said drive plate in a channel, said rubber cushion having a radially inner lip sealing on said drive plate at an inner neck spaced toward said pinion gear from said flange portion and a radially outer lip sealing on said drive plate at a position spaced radially outwardly of said inner lip.
2 more elements
A drive assembly for a starter motor comprising:
- an electric motor having a drive shaft, said drive shaft having a thread over at least a portion of its axial length;
- a drive plate having an internal thread received on said threaded portion of said drive shaft;
- a pinion gear to be driven by said drive shaft, said pinion gear having gear teeth to engage a ring gear of a vehicle engine starter said drive plate being positioned closer to said motor than said pinion gear;
- and
- a rubber cushion positioned between said drive plate and said pinion gear, said cushion having a channel receiving a flange portion of said drive plate, said cushion having a radially inner lip sealing on said drive plate at an inner neck spaced toward said pinion gear from said flange portion and an outer lip sealing on said flange on a side facing said motor.
2 more elements
Dependencies are inferred from the claim text.