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US 5,430,908 AGranted
Windshield wiping system with wiper blade reversal mechanism
AssigneeFord Motor Company
InventorXiaoming Deng
Life of this patent
Estimating the term…
Abstract
A system for wiping a windshield includes a pivot shaft rotatably connected to a source of oscillatory rotation. The system also includes an arm for positioning a wiper blade against the windshield. The wiper blade forms an angle of inclination with respect to a normal to the windshield. Gears connected to the pivot shaft and to the arm provide reversal of the angle of inclination when rotation of the pivot shaft reverses.
Claims6
A system for wiping a surface, said system comprising:
- a wiper blade further comprising a wiping portion having an edge adapted for wiping contact with said surface, said wiping portion having a plane passing through said edge and generally bisecting said wiping portion;
- means for positioning said wiper blade against said surface at an angle of inclination to a normal to said surface to be wiped, said positioning means being rotatably mounted about a first axis of rotation such that rotation of said means about said first axis of rotation modifies said angle of inclination;
- first gear means attached to said positioning means and having an axis of rotation coincident with said first axis of rotation;
- means for transmitting rotation from a reversible rotation source to reversible rotation of said wiper blade about a second axis of rotation;
- and
- second gear means, having an axis of rotation coincident with said second axis of rotation, operatively connected to said first gear means for reversing said angle of inclination of said wiper blade when said rotation about said second axis reverses direction.
3 more elements
A system for wiping a windshield surface, said system comprising:
- a pivot shaft mounted for reversible rotation about a first axis;
- an arm pivotally mounted to said shaft for rotation about a second axis of rotation;
- a wiper blade coupled to said arm and positioned with respect to said windshield surface by said arm, said wiper blade further comprising a wiping portion having an edge adapted for wiping contact with said windshield surface, said wiping portion having a plane passing through said edge and generally bisecting said wiping portion, said plane having an angle of inclination with respect to a normal to said windshield surface;
- a first gear fixed to said pivot shaft for rotation therewith about said first axis of rotation;
- and
- a second gear coupled with said first gear and fixed to said arm for rotation therewith about said second axis of rotation;
- said first gear and said second gear responsive to reversal of rotation of said pivot shaft about said first axis of rotation for rotating said arm and reversing said angle of inclination.
4 more elements
Dependencies are inferred from the claim text.