Claims for Patent: 4,866,812

Summary for Patent: 4,866,812

Title:	Wiperblade of windshield wiper
Abstract:	A wiperblade comprising a main yoke having on the longitudinally central portion formed by two side plates spaced apart and parallel, non-circular and aligning through holes formed in the side plates, and a pin having non-circular portions corresponding to the non-circular holes in the side plates, said pin being inserted from the outside of either of the side plates so as to constitute a pivotal connecting portion between the wiperblade and a wiper arm.
Inventor(s):	Arai; Masaru (Yono, JP)
Assignee:	Nippon Wiperblade Co., Ltd. (JP)
Application Number:	07/163,110
Patent Claims:	1. A wiperblade holder comprising: a main yoke having two spaced opposed parallel side plates defining a longitudinal central portion opening; means attached to said wiperblade holder for holding a wiper blade; a non-circular through hole in each said parallel side plate of said main yoke, and said non-circular through holes being aligned for receiving a pin therethrough; a tubular pin received in said non-circular through holes, said tubular pin having first and second ends, each said first and second ends being non-circular and mating with said non-circular through holes in said side plates, a pivot pin-receiving tube means in said tubular pin for receiving a pivot pin of a windshield wiper arm of the side clip type having a sideways projecting pivot pin, and a reduced diameter portion defined on said tubular pin for engaging a spring retainer; and a spring retainer engaging said reduced diameter portion of said tubular pin, said spring retainer being supported on said tubular pin between said two side plates of said main yoke. 2. A wiperblade holder comprising: a main yoke having two spaced opposed parallel side plates defining a longitudinal central portion opening; means attached to said wiperblade holder for holding a wiper blade; a non-circular through hole in each said parallel side plate of said main yoke, and said non-circular through holes being aligned for receiving a pin therethrough; a tubular pin received in said non-circular through holes, said tubular having first and second ends, each said first and second ends being non-circular and mating with said non-circular through holes in said side plates, a pivot pin-receiving tube means in said tubular pin for receiving a first subportion of a pivot pin, and a reduced diameter portion defined on said tubular pin for engaging a spring retainer; a pivot pin, first and second subportions on said pivot pin, said first subportion being received in said pivot pin-receiving tube means in said tubular pin, and a wiper arm receiving means on said second subportion of said pivot pin for receiving a wiper arm of the type having no sideways projecting pivot pin; and a spring retainer engaging said reduced diameter portion of said tubular pivot pin, said spring retainer being supported on said tubular pin between said two side plates of said main yoke. 3. A wiperblade holder comprising: a main yoke having two spaced opposed parallel side plates defining a longitudinal central portion opening for receiving a U-hook type wiper arm therein; means attached to said wiperblade holder for holding a wiper blade; a non-circular through hole in each said parallel side plate of said main yoke, and said non-circular through holes being aligned for receiving a pin therethrough; a pivot pin received in said non-circular through holes, said pivot pin having first and second ends, and each said first and second ends being non-circular and mating with said non-circular through holes in said side plates; and a connecting member disposed between said parallel side plates of said main yoke, bore means in said connecting member for rotatably and detachably engaging said pivot pin, a U-shaped portion on said connecting member for mating with a U-shaped end of a U-hook type wiper arm, and a retaining portion on said connecting member for detachably engaging a retaining opening of a U-shaped end of a U-hook type wiper arm. 4. A wiperblade holder comprising: a main yoke having two spaced opposed parallel side plates defining a longitudinal central portion opening; means attached to said wiperblade holder for holding a wiper blade; a non-circular through hole in each said parallel side plate of said main yoke, and said non-circular through holes being aligned for receiving a pin therethrough; a pivot pin received in said non-circular through holes, said pivot pin having first and second ends, and each said first and second ends being non-circular and mating with said non-circular through holes in said side plates; a connecting member disposed between said parallel side plates of said main yoke, bore means in said connecting member for rotatably and detachably engaging said pivot pin, an elongated slot in said connecting member for mating with a flat end of a bayonet type wiper arm, and an engaging opening in said connecting member for engaging a projection on a retaining member; and a retaining member inserted in said elongated slot of said connecting member for cooperating with said connecting member for retaining a flat end of a bayonet type wiper arm mating in said elongated slot when said retaining member and said connecting member are in an engaged position, and a projection on said retaining member for engaging said engaging opening in said connecting member when said retaining member is in a released position.