Wiper arm with helical torsion spring

Details Wiper arm with helical torsion spring Wiper arm with helical torsion spring

B - Operations, Transporting

60

S

15/34

B60S 1/34 (2006.01)

Patent

CA 1287454

ABSTRACT (Fig. 10) The invention relates to a simplified wiper arm for motor vehicles. It comprises only a channel (1), an arm extension (2), a mounting head (3), a helical spring (4) and a rivet (5) acting as articulation means between the channel (1) and the mounting head (3). The mounting head (3) is secured to the drive shaft (7) in the area (6) located between the arm extension (2) and the helical spring (4). The geometrical axis of the helical spring (4) extends substantially perpendicularly to the geometrical axis of the drive shaft (7). One of the extremities (4b) of the helical spring (4) exerts a pressure or load on the channel (1) and on the arm extension (2) via a protruding tongue(1a')provided on the channel (1).

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