Back to results
US 4,856,137 AGranted
Windscreen wiper arm of improved type
AssigneeFister S.p.A.
InventorAttilio D. Palu
Life of this patent
Estimating the term…
Abstract
A windscreen wiper arm of improved type is described, comprising a block carried for rotation by a drive shaft and supporting, with an articulated attachment, an arm element in turn supporting a blade, and in which this arm element is made in plastics material.
Claims5
An improved windscreen wiper arm adapted to carry a wiper blade thereon and adapted for attachment to a drive shaft (3) of a wiper motor, comprising:
- a U-shaped, plastic material arm element (4) adapted to support said wiper blade and comprising two side walls (32);
- a block (2) fixable for rotation with said drive shaft (3), said block (2) including a first portion (13) having a notch (16) formed therein;
- and
- articulated means for attaching and supporting said element (4) on said block (2) including a fixed pin (36) located close to one end of said element (4), said pin (36) being integrally formed with and connecting said side walls (32);
- wherein said fixed pin (36) has at least one flat side (41) extending longitudinally of the pin and is dimensioned to permit removeable engagement of said pin (36) in said notch (16) upon rotation of said element (4) about a longitudinal axis of said pin (36), thereby allowing removeable securement of said element (4) and said wiper blade to said block (2).
2 more elements
Dependencies are inferred from the claim text.