Four-hinged wiper arm for a windshield wiper system

Details Four-hinged wiper arm for a windshield wiper system Four-hinged wiper arm for a windshield wiper system

2005-12-20

2005-12-20

Kim, John (Department: 1744)

Brushing, scrubbing, and general cleaning

Attachments

Optical-member-attachable cleaner

C015S250310, C015S250351

Reexamination Certificate

active

06976285

ABSTRACT:
The invention relates to a four-hinged wiper arm for a windshield wiper system, especially for an automobile wherein a connecting rod is pivotally connected to a driving arm in a first bearing point and to a control arm in a second bearing point. A hinged part is coupled to the connecting rod. A wiper blade that can be placed on the hinged part or on a wiper rod connected to the hinged part can be pressed against the windshield to be wiped by a spring element that is mounted on the four-hinged wiper arm. In order to ensure good wiping quality and low-noise operation over a long service period, the invention provides that the connecting rod or the driving arm or the control arm is fitted with an antifriction bearing at least one of the two locating points of the four hinged wiper arm. According to advantageous embodiments of the invention, the four-hinged wiper arm is fitted with an antifriction bearing on both bearing points, whereby the antifriction bearing is preferably a deep groove ball bearing.

REFERENCES:
patent: 2615190 (1952-10-01), Shaw et al.
patent: 3734582 (1973-05-01), Beauchet
patent: 4683605 (1987-08-01), Leroy et al.
patent: 5009412 (1991-04-01), Roodenburg et al.
patent: 5884357 (1999-03-01), Schill et al.
patent: 5934589 (1999-08-01), Young
patent: 2145168 (1985-03-01), None
Current Solutions, Inc., Ball Bearing Vs. Sleeve Fans: A Comparison in Performance, www.currentsolutions.com/knowledge/ballbearingvssleevefans.htm.

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