Brushing – scrubbing – and general cleaning – Attachments – Optical-member-attachable cleaner
Patent
1993-06-23
1995-03-21
Scherbel, David A.
Brushing, scrubbing, and general cleaning
Attachments
Optical-member-attachable cleaner
1525004, 1525034, B60S 132, B60S 148/1/46
Patent
active
053983700
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
This invention relates to a wiper system for windshields of motor vehicles, and more particularly to a wiper arm which can be attached to an oscillatorily drivable wiper shaft and have a washing fluid line extend within the wiper arm.
It is common practice today to provide washing nozzles directly at the wiper arm or at the wiper blade in which the washing fluid is supplied through a fluid line extending along the wiper arm. The attachment piece of the wiper arm is known to be covered by a cap made from plastic material. This cap protects the connection between the wiper arm and the wiper shaft. This cap also improves the appearance if the wiper arm is connected to the wiper shaft outside of the vehicle body. On the other hand, many modern motor vehicles are provided with a slot between the windshield and the motor hood, out of which the wiper arms project. The wiper shaft is located below the slot opening so that it is covered by the body sheet. Consequently, a cover is no longer provided. As well as in the case of wiper arms with a cover as in the case of wiper arms without a cover, it may be necessary to safely retain the fluid line in the area of the attachment piece.
A fluid line extending through a sleeve-shaped holding element adjacent a wiper arm comprised of a covered attachment piece is known from German Patent DE-GM 87 06 029.
Also, wiper arms are already known wherein a washing fluid line extends within a U-shaped joint piece. This, for example, is shown in German Patent DE-OS 25 09 876. In particular the fluid line protrudes through the attachment piece and extends throughout the joint piece after passing beneath the hinge of the joint piece. Washing fluid line passages through the wiper shaft are known from U.S. Pat. No. 3,887,956 and from German Patent Nos. DE-OS 39 07 967 and DE-OS 39 07 968. This arrangement also requires the fluid line to extend beneath the hinge of the joint piece.
SUMMARY OF THE INVENTION
The object of the present invention is to design a wiper system for windshields of motor vehicles in which the washing fluid line easily attaches to the wiper arm and is covered either by a cap or by the wiper arm itself.
To achieve this object in accordance with the invention the attachment piece laterally comprises a depression in which the fluid line extends and which is covered by a planar wall of the joint piece or by a cover of the attachment piece. The fluid line can be easily mounted in this depression. The die for forming the attachment piece will not become more complicated as a result of the removal of a recess for a bearing of the joint between the attachment piece and the joint piece in the direction of the axis of the joint since it is the direction that corresponds with the mold removing direction of the depression also.
When the fluid line is in the depression, it should not be pressed together so that its inside cross-section is decreased. Therefore, the distance of the planar wall from the deepest point of the depression should correspond at least approximately to the outside diameter of the fluid line.
For the purpose of assembly of the fluid line it is possible to make the depression accessible vertically to the planar wall or in the direction of the axis of the joint between the attachment piece and the joint piece, respectively, in such a way that the cover is assembled only afterwards or that the cover is in a folded down position during the assembly. However, when the cover or the joint piece are brought into their assembled position it has to be assured that the fluid line remains in the depression. Therefore, it seems more preferable to have the groove accessible in parallel to the planar wall. Then the fluid line can be pressed into the depression through the access, while being deformed in cross-section, yet resuming its original shape as soon as it is in the depression.
Guiding of the fluid line is advantageous, especially in those areas in which the course of the fluid line is bent. Therefore, there is a depression at least
REFERENCES:
patent: 3008170 (1961-11-01), Marks
patent: 3427675 (1962-02-01), Tibbet
patent: 3670354 (1972-06-01), Weber
patent: 3887956 (1975-06-01), Wind
patent: 3916473 (1975-11-01), Williams
Gorner Eugen
Karl Helmut
Krizek Oldrich
Graham Gary K.
ITT Automotive Europe GmbH
Lewis J. Gordon
Scherbel David A.
Seitter Robert P.
LandOfFree
Wiper system having a depression for accommodating a fluid hose does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Wiper system having a depression for accommodating a fluid hose, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Wiper system having a depression for accommodating a fluid hose will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1140947