Brushing – scrubbing – and general cleaning – Attachments – Optical-member-attachable cleaner
Reexamination Certificate
1999-08-09
2001-04-03
Graham, Gary K. (Department: 1744)
Brushing, scrubbing, and general cleaning
Attachments
Optical-member-attachable cleaner
Reexamination Certificate
active
06209166
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The invention is directed to a windshield wiper with a wiper arm, and, more particularly, to a windshield wiper comprising a wiper arm, which is supported in a drivable manner and which carries a wiper blade at its free end, a holding clip for connecting the wiper blade with the wiper arm in a detachable and articulated manner as well as an intermediate piece for adapting different wiper arms and holding clips for connection with the wiper arm.
2. Prior Art
Windshield wipers of the type mentioned above are known. These windshield wipers are commonly used to wipe windshields of motor vehicles so as to ensure good visibility for the driver of the vehicle. For this purpose, the windshield wipers have a wiper arm which is displaceable via a wiper drive in a swinging or pendular motion. The wiper arm is connected by one end with a wiper shaft which is fixed with respect to the body of the vehicle, while the other free end of the wiper arm carries a wiper blade. A holding clip which is arranged at the free end of the wiper arm in a detachable and articulated manner is provided for connecting the wiper blade with the wiper arm. The detachable arrangement makes it possible to exchange worn wiper blades, while the articulated arrangement permits the wiping movement to be adapted to curved windshields. It is known to connect the wiper arm with the holding clip by an intermediate piece which permits the wiper arm to be adapted to the holding clip. A disadvantage in this respect consists in that this intermediate piece is tailored to a wiper arm or to a holding clip, necessitating a corresponding quantity of different intermediate pieces which are usually delivered along with the wiper blades and from which the appropriate intermediate piece is to be chosen.
SUMMARY OF THE INVENTION
It is an object of the present invention to provide a windshield wiper with a wiper arm which does not have the above-described disadvantage and is adapted to receive and hold a number of different sized wiper blades.
According to the invention a windshield wiper comprising a wiper blade, a holding clip engaging and holding the wiper blade and an intermediate piece for connecting the holding clip together with the wiper blade in a detachable and articulated manner with any one of a number of different wiper arms of different dimensions, wherein the intermediate piece is provided with a receiving area for insertion of each different-sized wiper arm. The receiving area is provided with a plurality of respectively different-sized receiving portions for the different-sized wiper arms which are inserted through a pocket opening provided in one end of the intermediate piece. The respectively different-sized receiving portions have correspondingly different transverse cross-sections decreasing in a stepped manner in an insertion direction for the wiper arms. The intermediate piece advantageously comprises two housing halves connected in one piece with each other by an elastic member, which is a tubular spring extending around the intermediate piece between the two housing halves and connecting the two housing halves, so that the two housing halves may be squeezed together for connection of the intermediate piece with the holding clip and the wiper blade and so that the two housing halves can move apart when one of the different wiper arms is inserted in the intermediate piece.
The windshield wiper according to the invention has the advantage over the prior art that it is possible to adapt the detachable, articulated connection between the wiper arm and holding clip by means of an individual intermediate piece. Due to the fact that the intermediate piece forms a receiving area which is adapted for receiving wiper arms of various dimensions in a positive and frictional engagement, it is possible to insert the wiper arm into the receiving area of the intermediate piece in a simple manner, wherein, in accordance with the dimensioning of the wiper arm, an automatic positive and frictional engagement is carried out in a portion of the receiving area which corresponds to this dimensioning of the wiper arm. Therefore, for example, it is possible when delivering the wiper blade to supply only one intermediate piece which can be fastened to different wiper arms without additional tools and without extra assembly.
Advantageous developments of the invention follow from the rest of the features mentioned in the subclaims.
REFERENCES:
patent: 3871050 (1975-03-01), Baut et al.
patent: 4348782 (1982-09-01), Fournier
patent: 4970751 (1990-11-01), Fisher et al.
patent: 5435041 (1995-07-01), Ho
patent: 5611103 (1997-03-01), Lee
patent: 3331310 (1985-03-01), None
patent: 141186 (1985-05-01), None
patent: 2562013 (1985-04-01), None
Pollaris Eric
Westermann Klaus-Juergen
Graham Gary K.
Robert & Bosch GmbH
Striker Michael J.
LandOfFree
Windshield wiper does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Windshield wiper, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Windshield wiper will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2511370