Windshield wiper assembly for vehicles,particularly for motor vehicles

Claim 2

A vehicle windshield wiper assembly, comprising an electric motor having a rotatable single rigid drive shaft having a driving gear at each end, a windshield wiper bearing adjacent each end of said shaft, and an oscillating drive connected between said driving gear and said windshield wiper bearings adjacent each end of said shaft, housing means for said motor said windshield wiper bearings and said oscillating drive, and means on said housing means for securing said housing means as a unit on the vehicle for positioning both bearings on operative positions thereon.

Claim 3

A windshield wiper assembly, comprising an electric motor having a rotatable drive shaft having a driving geat ar each end, a windshield wiper bearing adjacent each end of said shaft, and an oscillating drive connected between said driving gear and said windshield wiper bearings adjacent each end of said shaft, an intermediate housing for said electric motor having an opening at each end through which said shaft extends, and an oscillating-gear-and-windshield-bearing housing surrounding each end of said shaft and carry said oscillating drive and said windshield wiper bearing, said housings being arranged directly adjacent each other and being fastenable as a unit to the vehicle.

Claim 4

A windshield wiper assembly, comprising an electric motor having a rotatable drive shaft having a driving geat ar each end, a windshield wiper bearing adjacent each end of said shaft, and an oscillating drive connected between said driving gear and said windshield wiper bearings adjacent each end of said shaft, an intermediate housing for said electric motor having an opening at each end through which said shaft extends, and an oscillating-gear-and-windshield-bearing housing surrounding each end of said shaft and carry said oscillating drive and said windshield wiper bearing, said housings being arranged directly adjacent each other and being fastenable as a unit to the vehicle.

Claim 5

A windshield wiper assembly, comprising an electric motor having a rotatable drive shaft having a driving gear at each end, a windshield wiper bearing adjacent each end of said shaft, and an oscillating drive connected between said driving gear and said windshield wiper bearings adjacent each end of said shaft, wherein said oscillating drive comprises a rotatable gear, said drive shaft having a driving gear in the form of a worm engaged with said rotatable gear, a bearing pin eccentrically carried on a side thereof, a connecting rod connected to said bearing pin and having a toothed segment formed at its opposite end, a windshield wiper bearing gear carried on said windshield bearing and engaged with said segment, and a toggle joint articulated to the center of said bearing gear and said toothed segment.

Claim 6

A windshield wiper assembly, comprising an electric motor having a rotatable drive shaft having a driving gear at each end, a windshield wiper bearing adjacent each end of said shaft, and an oscillating drive connected between said driving gear and said windshield wiper bearings adjacent each end of said shaft, wherein said oscillating drive comprises a rotatable gear, said drive shaft having a driving gear in the form of a worm engaged with said rotatable gear, a bearing pin eccentrically carried on a side thereof, a connecting rod connected to said bearing pin and having a toothed segment formed at its opposite end, a windshield wiper bearing gear carried on said windshield bearing and engaged with said segment, and a toggle joint articulated to the center of said bearing gear and said toothed segment.

Claim 7

A windshield wiper assembly, according to claim 3, wherein said toggle joint comprises a double butt strap enclosing said toothed segment and said bearing gear.

Claim 8

A vehicle windshield wiper assembly, comprising a central motor housing portion having an electrical stator, a single rigid shaft extending through said housing and being rotatably supported therein and having an electric rotor thereon fOr rotation upon energization of said stator, said rotor shaft extending outwardly from each end of said housing, a first oscillating-drive-and-windshield-wiper-bearing housing portion arranged around one end of said shaft, a second oscillating drive and windshield wiper bearing housing portion arranged around the opposite end of said shaft, an operating gear rotatable in each of said first and second housings and driven by said shaft, a segment member connected to said gear on one side thereof at an eccentric location and being oscillated by rotation of said gear, a windshield wiper bearing in each of said first and second housing portions for oscillatably carrying a respective windshield wiper and having windshield wiper drive gear thereon located within respective said first and second housing portions, said wiper drive gear being connected to said segment member and beingdriven thereby to oscillate said windshield wiper bearing, said first and second housing portions forming a unit adapted to be secured to the vehicle for positioning said windshield wiper bearings in operative positions thereon.

Claim 9

A vehicle windshield wiper assembly, comprising a central motor housing portion having an electrical stator, a single rigid shaft extending through said housing and being rotatably supported therein and having an electric rotor thereon fOr rotation upon energization of said stator, said rotor shaft extending outwardly from each end of said housing, a first oscillating-drive-and-windshield-wiper-bearing housing portion arranged around one end of said shaft, a second oscillating drive and windshield wiper bearing housing portion arranged around the opposite end of said shaft, an operating gear rotatable in each of said first and second housings and driven by said shaft, a segment member connected to said gear on one side thereof at an eccentric location and being oscillated by rotation of said gear, a windshield wiper bearing in each of said first and second housing portions for oscillatably carrying a respective windshield wiper and having windshield wiper drive gear thereon located within respective said first and second housing portions, said wiper drive gear being connected to said segment member and beingdriven thereby to oscillate said windshield wiper bearing, said first and second housing portions forming a unit adapted to be secured to the vehicle for positioning said windshield wiper bearings in operative positions thereon.

Claim 10

A windshield wiper assembly, according to claim 5, wherein said shaft has a worm at each end engaged with said operating gear and wherein said gears in said first and second housing portions each rotate in the same direction.

Claim 11

A windshield wiper assembly, according to claim 5, wherein said shaft has a worm at each end driving respective ones of said gears in said first and second housing portions, said gears in respective said first and second housing portions being driven in opposite directions.

Claim 12

A windshield wiper assembly, according to claim 5, wherein said segment member in said first housing portion is connected to the same side of the associated gear as said segment member of said second housing portion and they are arranged on their associated gear wheels at the same angular location relative to each other.

Claim 13

A windshield wiper assembly, according to claim 5, wherein said toothed segments are arranged to drive said gear wheels of said first and second housings housing portions in respective opposite directions.

Claim 14

A windshield wiper assembly, according to claim 5, wherein said bearing pins of said gears are displaced by 180* in respective first and second housing portions.

Claim 15

A windshield wiper assembly, according to claim 5, wherein said toothed segments drive said gear wheels in the same direction in said first and second housing positions.

Claim 16

A windshield wiper assembly, according to claim 5, wherein said toothed segments drive said gear wheels of said first and second housing portions in opposite directions.

Claim 17

A windshield wiper assembly, according to claim 5, wherein said main motor housing portion carries end flanges at each end rotatable support bearings for said motor drive shaft.

Claim 18

A windshield wiper assembly, according to claim 5, wherein said main motor housing portion includes means for aligning said shaft for positioning said first and second housing portions.

Claim 19

A windshield wiper assembly, according to claim 5, wherein said operating gears, said connecting rods with said toothed segment and said bearing gears are all arranged in substantially one action plane parallel to the longitudinal axis of said drive shaft.