DE2113098C3

DE2113098C3 - Headlight windshield wiper systems for vehicles, in particular for motor vehicles

Info

Publication number: DE2113098C3
Application number: DE19712113098
Authority: DE
Inventors: Kurt 7121 Kleiningersheim; Deutscher Hans-Christian 7140 Ludwigsburg Bauer
Original assignee: SWF-Spezialfabrik für Autozubehör Gustav Rau GmbH, 7120 Bietigheim-Bissingen
Filing date: 1971-03-18
Publication date: 1977-01-27

Description

aus der öffnung des Zierringes (28) ragt, sich an der 40 verbunden, das direkt mit dem in der Rohrführung 32protrudes from the opening of the decorative ring (28), is connected to the 40, which is directly connected to the in the pipe guide 32

Scheinwerferscheibe (18) abstützt und das Antriebsrad (30) und das Ende des Antriebskabels (12) abdeckt.Headlight disc (18) and the drive wheel (30) and the end of the drive cable (12) covers.

Die Erfindung betrifft eine Scheinwerfer-Scheibenwischeranlage für Fahrzeuge, insbesondere für Kraftfahrzeuge, gemäß dem Oberbegriff des Anspruches 1.The invention relates to a headlight windshield wiper system for vehicles, in particular for motor vehicles, according to the preamble of claim 1.

Eine derartige Scheinwerfer-Scheibenwischeranlage ist aus der US-PS 30 58 142 bekannt. Bei dieser bekannten Anlage wird der Tragring über ein Antriebsrad angetrieben, welches außerhalb des Tragringes angeordnet ist und mit dessen Außenverzahnung im Eingriff steht. Das Antriebsrad wird direkt durch eine in der Fahrzeugkarosserie gelagerte Antriebswelle angetrieben, welche über Zahnradgetriebe und weitere Lagerwellen von einem im Motorraum befestigten Antriebsmotor in Drehbewegungen versetzt wird.Such a headlight windshield wiper system is known from US Pat. No. 3,058,142. At this known system, the support ring is driven by a drive wheel which is outside of the support ring is arranged and is in engagement with the external teeth. The drive wheel is driven directly by a Drive shaft mounted in the vehicle body, which is driven via gear transmission and others Bearing shafts is set in rotary motion by a drive motor fixed in the engine compartment.

Der Antrieb des Tragringes über eine Außenverzahnung und einem damit im Eingriff stehenden Antriebsrad erfordert einen breiten Zierring, damit alle Antriebselemente abgedeckt sind. Dieser Platz steht aber nicht immer zur Verfügung, da um den Scheinwerfer oft nur ein ganz schmaler Rand der Fahrzeugkarosserie vorgesehen ist. Ein weiterer Nachteil ist die Kopplung des Antriebsrades mit dem Antriebsmotor über weitere Lagerwellen und Zahnraddrehbaren Antriebskabel 12 im Eingriff steht. Dieses Antriebskabel 12 ist an sich bekannt und arbeitet wie eine Antriebsschnecke auf das Antriebsrad 30. Dieses Antriebskabel 12 führt mit der Rohrführung 32 zu dem unter der Karosserie an geeigneter Stelle befestigten Antriebsmotor.The drive of the support ring via an external toothing and a drive wheel that is in engagement with it requires a wide trim ring so that all drive elements are covered. This place stands but not always available as there is often only a very narrow edge around the headlight Vehicle body is provided. Another disadvantage is the coupling of the drive wheel with the Drive motor via further bearing shafts and gear-rotatable drive cable 12 is in engagement. This Drive cable 12 is known per se and works like a drive worm on the drive wheel 30. This Drive cable 12 leads with pipe guide 32 to the one fastened under the body at a suitable point Drive motor.

Der Tragring 13 ist als Zahnkranz mit Innenverzahnung ausgebildet und steht mit den Ritzeln 21 im Eingriff, so daß er darüber radial unverschiebbar festgelegt ist. Die axiale Festlegung des Tragringes 13 erfolgt über die an den Stützlagern angebrachten Führungsscheiben 33, die in eine umlaufende Nut der Innenverzahnung des Tragringes 13 eingreifen. Der Tragring 13 weist einen die Verzahnung und die Ritzel 21 der Stützlager überdeckenden Flansch auf, an dem die Federschiene 14 des Wischblattes befestigt ist. Dieses Wischblatt erstreckt sich diametral über die Scheinwerferscheibe 18 und ist daher an zwei Stellen mit dem Tragring 13 verbunden. In die Federschiene 14, die sich an die Wölbung der Scheinwerferscheibe 18 anpaßt, ist eine Gummi-Wischleiste 15 eingesetzt.The support ring 13 is designed as a ring gear with internal teeth and is with the pinions 21 in Engagement, so that it is fixed about it radially immovable. The axial fixing of the support ring 13 takes place via the guide disks 33 attached to the support bearings, which are inserted into a circumferential groove of the The internal teeth of the support ring 13 engage. The support ring 13 has a toothing and the pinion 21 of the support bearing overlapping flange to which the spring rail 14 of the wiper blade is attached. This wiper blade extends diametrically over the headlight disk 18 and is therefore in two places connected to the support ring 13. In the spring rail 14, which is attached to the curvature of the headlight disk 18 adapts, a rubber wiper strip 15 is used.

Zusammen mit dem Wischblatt ist ein Dichtungsring 26 am Tragring 13 befestigt, der mit einer Dichtungslippe durch die öffnung des Zierringes 28 ragt. Diese Dichtungslippe stützt sich im Anschluß an das runde Wischfeld an der Scheinwerferscheibe 18 ab und verhindert ein Eindringen des abgestreiften Schmutzes zu den Antriebselementen. Der Dichtungsring 26 wirdTogether with the wiper blade, a sealing ring 26 is attached to the support ring 13, which has a sealing lip protrudes through the opening of the decorative ring 28. This sealing lip is based on the round one Wiping field on the headlamp windshield 18 and prevents penetration of the stripped dirt to the drive elements. The sealing ring 26 is

mit einem Bördelring 34 befestigt, der zwei radiale Aufnahmen für die Federschiene 14 des Wischblattes trägt Die Befestigung übernehmen Schrauben 35, die in eine Gewindeaufnahme des Tragringes 13 verschraubt werden. Die Aufnahmen im Bordelring 34 nehmen die Federschiene 14 des Wischblattes bündig auf, so daß sich die mit der Kante des Zierringes 28 verbundene Dichtungsleiste 27 über den gesamten Umfang an dem Bordelring 34 abstützen und den Raum unterhalb des Zierringes 28 vollkommen abdichten kann.fastened with a flanged ring 34, the two radial receptacles for the spring rail 14 of the wiper blade The fastening is carried out by screws 35 which are screwed into a threaded receptacle of the support ring 13 will. The recordings in the Bordelring 34 take the spring rail 14 of the wiper blade flush so that the sealing strip 27 connected to the edge of the decorative ring 28 over the entire circumference of the Support Bordelring 34 and seal the space below the decorative ring 28 completely.

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

Claims

Patent claims:

1. Headlight wiper system for vehicles, especially for motor vehicles, with a Over the headlight rotating wiper blade, which is designed as a toothed ring Support ring is attached to one of the headlights surrounding frame ring over at least three each offset by the same angle Pinion is rotatably mounted, the support ring, the frame ring and the pinion by means of a for Headlight disc are covered towards the open decorative ring and the support ring by means of a drive wheel is drivable, the axis of rotation of which is aligned parallel to the axis of rotation of the support ring and with is coupled to a drive motor arranged in the engine compartment, characterized in that that the drive wheel (30) is rigidly and coaxially connected to one of the pinions (21), that the support ring (13) has internal teeth and that the drive wheel (30) over the end of a rotating Drive cable (12) can be driven, which is guided in a pipe guide (32) under the decorative ring (28) and there is in engagement with the side of the drive wheel (30) facing the disc center.

2. Headlight windshield wiper system according to claim 1, characterized in that the support ring (13) has a circumferential inner groove into which guide disks (33) engage, which on the Support bearings of the pinion (21) are applied and the support ring (13) axially immovable to the frame ring (29) so that the drive wheel (30) is held in engagement with the end of the drive cable (12).

3. Headlight windshield wiper system according to claim 1 or 2, characterized in that the support ring (13) covers the internal toothing Has outer flange to which a sealing ring (26) is attached, which is provided with a sealing lip gearboxes that take up additional space in the engine compartment and any attachment of the drive motor not allow. .

It is the object of the invention to provide a headlight windshield wiper system of the type mentioned in such a way that the space required for the drive elements is still significantly reduced under the decorative ring and that the drive motor by appropriate Coupling with the drive wheel at any point in the engine compartment in any orientation can be without affecting the drive of the support ring.

This is achieved according to the invention by the features listed in the characterizing part of claim 1. The design of the support ring with internal teeth and the rigid connection of the drive wheel with a pinion shrink the space required for the drive elements so that a very narrow decorative ring is sufficient for covering , especially since this drive wheel is still driven by a flexible drive cable, the implementation of which through the vehicle body and its guidance to the drive motor, which can be attached at will, no longer cause any difficulties.

Further advantageous developments, in particular with the attachment and the cover of the Deal with drive elements, can be found in the subclaims.

The invention is explained in more detail using an exemplary embodiment shown in the drawing, only the support bearing via which the support ring with the wiper blade can be driven is shown in section.

A frame ring 29 is arranged around the round headlight disk 18, which has at least three by 120 ° has offset support bearings. The support bearing shown also takes over the drive. In the frame ring 29 is a Shaft 31 set on which a pinion 21 is rotatably mounted. This pinion 21 is not closer than one designated bearing bush with a drive wheel 30