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US 4,545,088 AGranted
Windshield wiper installation
AssigneeITT Industries, Inc.
InventorsAlfred Kohler, Oldrich Krizek
Life of this patent
Estimating the term…
Abstract
A windshield wiper assembly includes a helical compression spring arranged laterally staggered relative to the wiper shaft in such a way that the center line of the helical compression spring runs alongside the wiper shaft. This permits the wiper arm to be made very compact and low, so that it can be used in motor vehicle windshield wiper installations having a concealed parking position.
Claims12
A windshield wiper assembly comprising:
- a wiper rod for carrying a wiper blade;
- a fastening member having a bore for receiving a wiper shaft;
- a link articulated on said fastening member, said link comprising a hollow member having two side walls and a center portion connecting said side walls;
- a helical compression spring disposed within said hollow member and extending substantially in the longitudinal direction of said wiper rod, said helical compression spring having one end coupled to said wiper rod;
- a yoke coupled to said fastening member for supporting the other end of said spring on said fastening member;
- wherein
- said helical compression spring is positioned laterally staggered relative to said bore such that the center line of said spring is spaced apart from the longitudinal axis of said bore at a distance greater than the radius of said wiper shaft;
- and
- said longitudinal axis intersects an imaginary line parallel to said wiper rod at a point between said one end of said helical compression spring and the point of support of said element on said fastening member.
6 more elements
A windshield wiper assembly comprising:
- a wiper rod for carrying a wiper blade;
- a fastening member comprising a lateral elongation including a bore for receiving a wiper shaft;
- an asymmetrically formed link articulated on said fastening member, said link comprising a hollow member having two side walls and a center portion connecting said side walls;
- a helical compression spring disposed within said hollow member and coupled at one end to said wiper rod;
- a yoke coupled to said fastening member for supporting the other end of said spring on said fastening member and;
- wherein said helical compression spring is positioned laterally staggered relative to said bore such that the center line of said spring is spaced apart from the longitudinal axis of said bore at a distance greater then the sum of the radius of said wiper shaft and the outside radius of said helical compression spring;
- and
- wherein said wiper rod and said helical spring are arranged alongside one of said side walls wherein said helical spring directly acts upon said wiper rod and acts on said fastening member via a suspension pin, and said lateral elongation extends parallel to said helical spring.
5 more elements
Dependencies are inferred from the claim text.