Wiper arm assembly for motor vehicles

Details Wiper arm assembly for motor vehicles Wiper arm assembly for motor vehicles

1988-08-05

1990-04-24

Hornsby, Harvey C.

Brushing, scrubbing, and general cleaning

Attachments

Optical-member-attachable cleaner

1525023, 1525035, B60S 136

Patent

active

049187805

ABSTRACT:
The wiper arm assembly according to the invention comprises a mounting head (1) rigidly secured to a drive shaft (A-B), a channel (2) rotatably connected to the mounting head (1), spring means (4) capable of biasing the channel (2) towards the surface to be wiped, a sliding element (9) located inside the channel (2) and provided with an arm extension (3) for attaching thereto (3a) a wiper blade (not shown), and a rod (12) articulated at one of its ends (11)to the sliding element (9) and, at the other of its ends (11a), to the vehicle body (14) at a certain distance from the drive shaft (A-B). When the channel (2) is oscillating about the drive shaft (A-B) said rod (12) imports a back and forth movement to the sliding element (9) and thus to the arm extension (3) and to the wiper blade (not shown). Solid anti-friction means are provided between the sliding element (9) and the channel (2). The solid anti-friction means may consist of a plastic sheath (13), or of a ball bearing, or of a roller bearing, etc.

REFERENCES:
patent: 2308212 (1943-01-01), Scott-Iversent et al.
patent: 3003173 (1961-10-01), Ziegler
patent: 3010137 (1961-11-01), Krohm
patent: 4447928 (1984-05-01), Schuch et al.
patent: 4625359 (1986-12-01), Egner-Walter et al.

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