Brushing – scrubbing – and general cleaning – Attachments – Optical-member-attachable cleaner
Patent
1988-12-20
1991-09-10
Hornsby, Harvey C.
Brushing, scrubbing, and general cleaning
Attachments
Optical-member-attachable cleaner
1525005, 1525024, 1525041, B60S 124
Patent
active
050462164
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
This invention relates to a windshield wiper system comprising the features of a driving member guided in a frame and connected with a carrier provided with a seal.
A windshield wiper system of this kind is for example known from the British patent specification 887 114. The windshield wiper system has two rubber strips arranged opposite each other which are riveted onto the frame and serve as a seal, which rubber strips rest against two opposite longitudinal surfaces of the carrier for the windshield wiper by means of self-supporting edges. The carrier has an approximately rectangular cross-section and the said edges rest against two opposite longitudinal lateral edges of the former. This kind of seal does not meet increased demands. At least after a longer service life a wear of the edges of the rubber seal has to be feared. Then ice or snow can penetrate into the frame and impede the movability of the driving member and thus of the windshield wiper.
SUMMARY OF THE INVENTION
It is an object of the present invention to create a windshield wiper system of the initially mentioned kind which ensures a good cleaning of the window pane as long as possible and in addition looks as advantageously as possible.
According to the invention this problem is solved by a windshield wiper system having the features of a driving member cooperating with a carrier provided with a seal. In two different places of the length of this carrier of the said windshield wiper system sealing elements rest against it. In this case the sealing safety is at least twice as good as in the above described windshield wiper system. The seal according to the invention not only makes possible the above described multiple sealing, but entails or makes possible further advantages because it encloses a hollow space. So it has to be assumed that in the hollow space enclosed by the seal and thus in front of the driving member a relative warm climate prevails, when an air cushion is available. Consequently a cold surrounding climate does not have too great an effect on the driving member and thus in cold weather too a reliable driving of the windshield wiper is possible. If the seal serves in addition as a heating hose even greater reliability of immaculate operation of the driving member is insured and thus of the windshield wiper.
Of course it is not necessary that the seal is exactly formed in the manner of a hollow cylinder and the carrier and the seal need not penetrate the carrier exactly diametrically. It has only to be taken care that the carrier does not penetrate the seal very close to its wall, so that there is a hollow space chamber on its both sides which ensures or enables the above mentioned effects.
However also the additional function of the seal to serve as a water discharge popt entails advantages alone or in addition to the heating hose function as stated as additional function above. So for example condensation water coming into existence in the interior of the seal can rapidly flow off due to the hollow-cylindrical shape of the former. If desired this discharge can be accelerated by conducting through it a gaseous medium by conducting through it compressed air. The latter can be carried away by the slip stream, if required.
If the seal is furthermore constructed according to a further advantageous embodiment wherein the hollow cylinder forming the seal is slotted in its circumferential direction, an even better sealing is ensured.
A making of the seal and/or of the guide frame from a noise-suppressing material is especially suitable, if the windshield wiper system is provided for a motor vehicle. Then the driver's attention is not drawn away from what happens in the traffic by unnecessarily loud windshield wiper driving noises.
The noise-suppression of the seal can even be improved wherein the seal with strips has a larger surface and can thus suppress noises better than one without strip(s) of this kind.
By the developments shown in the following both the protection of the driving member against
REFERENCES:
patent: 1490168 (1924-04-01), Ford et al.
patent: 1506004 (1924-08-01), Noonan
patent: 1644545 (1927-10-01), Robertson
patent: 1672136 (1927-05-01), Scott
patent: 1828410 (1931-10-01), Hardman
patent: 1841734 (1932-01-01), Hueber
patent: 1871987 (1932-08-01), Hardman
patent: 2253029 (1941-08-01), Hart
patent: 2785429 (1957-03-01), Walters
patent: 3623182 (1971-11-01), Parker
Baungarter Peter
Egner-Walter Bruno
Prohaska Hans
Schmid Eckhardt
Teutsch Melitta
Graham Gary K.
Hornsby Harvey C.
Lewis J. Gordon
Seitter Robert P.
SWF Auto-Electric GmbH
LandOfFree
Windshield wiper system 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 system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Windshield wiper system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-530595