JPS6028701B2 - Cleaning device for the front glass of automobile lights - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention comprises a supply device for cleaning liquid and at least one cleaning nozzle connected to the supply device by a conduit and directed towards the windshield, the cleaning nozzle being connected to the liquid supply conduit. It has a nozzle body through which a connected nozzle passage passes,
The present invention relates to a washing device for a windshield of an automobile lamp, in which a torsion body having at least two cleaning liquid passing passages extending obliquely with respect to the marking line of the nozzle passage in a circumferential area is provided in the nozzle passage.

Cleaning devices of this type are already known, the passage channels of which are provided evenly distributed in the torsion body, so that the droplets are evenly distributed over the cross section of the jet emerging from the cleaning nozzle.

Although such jets would seem well suited for uniform cleaning of glass, in reality the glass is severely curved, highly slanted, and/or the distance between the nozzle and the glass is not suitable when the size is larger than a certain size. Because of the spatial position of the glass relative to the direction of travel and the curvature of the glass and the associated special flow conditions of the glass area, the glass is therefore non-uniformly soiled, so that the known cleaning devices clean it non-uniformly; Even if you can clean the glass part. The cleaning equipment must still be operational. Furthermore, if the liquid jet has to cover too large an area, the direction of the liquid jet can also be changed. On the other hand, the cleaning device according to the present invention is characterized in that the entrances of the passageway at the end face of the liquid supply conduit of the twisted body are distributed non-uniformly over the circumference. This has the advantage that even if the glass is unevenly soiled, the glass can be cleaned uniformly.

By locally condensing the spray jet, a better directional stability is obtained, so that even glass areas relatively remote from the nozzle can be cleaned effectively. Furthermore, such a cleaning device is economical in that cleaning liquid is no longer unnecessarily sprayed onto already clean glass areas, which makes it particularly useful when the supply of cleaning liquid is limited. is important. The invention will be explained below with reference to the embodiments shown in the drawings.

The cleaning device 10 shown in FIG. 1 for a windshield 11 of a motor vehicle lamp 12 has a storage container 13 for cleaning liquid and is designed as a suction-discharge pump 14 and is connected to the storage container 13 via a suction line 15 . It has a feeding device.

The pump 14 has a discharge conduit 16 on the discharge side, and branch conduits 17 and 18 branching from the discharge conduit 16 are connected to cleaning nozzles 19 and 20, respectively. The closing ends of the cleaning nozzles 19 and 20 are each directed towards the windshield 11 of the motor vehicle lamp 12. Each of the cleaning nozzles 19 or 20 has a nozzle body 25 (FIG. 2) through which a nozzle passageway 26 extends longitudinally.

A branch line 17 or 18 of the cleaning device 10 can be connected to the nozzle channel 26 . Nozzle passage 26 has nozzle open □2
7 has a constriction point 28 which is directed towards the nozzle opening 27. In front of the narrow area 28 in the flow direction of the cleaning liquid (arrow 29), there is a nozzle body 2
A torsion body 30 is provided in the nozzle passage 26 of No. 5 and fits into the nozzle passage 26 like a plug. The torsion body 30 has three groove-like recesses 32 (FIG. 3) on its surface 31, these recesses 32 forming passages for the cleaning liquid. The passageway 32 in this embodiment extends helically, so that a twist is imparted to the cleaning liquid before it passes through the corner 28 and exits the nozzle entrance 27. In contrast to the illustrated embodiment, the passageway 32 is
Instead of a spiral groove-like recess in the circumferential surface of the torsion body 30, it is also possible to form it as a straight hole extending obliquely to the wire in the peripheral area of the torsion body 30. It is of no importance whether all passage passages 32 have the same angle of inclination with respect to the axis of the nozzle passage 36. Furthermore, it is also conceivable to provide a passageway extending spirally and a passageway extending linearly in the same twisted body. As can be seen in FIG. 3, the torsion body 30 has a spout 33 for a passageway 32 at its end face 31' facing away from the liquid supply conduit 17 or 18. The openings 33 are provided non-uniformly around the circumference. Thereby, the density of the liquid jet 34 emerging from the nozzle opening 27 can be made to vary in its cross section. The passage passage 32, which is formed as a groove-like recess in the circumferential surface of the torsion body 30, extends from the end face 31' of the torsion body 30.
The adjacent openings 33 are arranged such that the intervals between them are different. Furthermore, as can be seen from FIG. 3, another passage passage 35 is provided at the center of the circle (pitch circle) in which the entrance 33 of the passage passage 32 is located, and its axis coincides with the rut line of the nozzle passage 26. However, as shown in FIG. 4, the entrances 133 and 134 of the passage passage 32 are arranged in groups
In this case, the two open rows 33, 134 can also be placed adjacent to each other.

In this case as well, the Sekiguchi 133 is located on the pitch circle of the passageway 32.
, 134 have two different mutual spacings. Furthermore, in this embodiment as well, the entrance of another passageway 135 is provided at the center of the pitch circle where the entrances 133, 134 are located. Furthermore, as shown in FIG. 4, the cross section of the passageway 32 can also have a different size. When the twisted body 30 is assembled into the nozzle body 25 in the state shown in FIG.
6 forms the outer boundary of the passageway 32.

[Brief explanation of the drawing]

Fig. 1 is a basic configuration diagram of a cleaning device according to the present invention, Fig. 2 is a vertical sectional view of a nozzle body into which a twisted body of an injection nozzle belonging to the cleaning device is inserted, and Fig. 3 shows the twisted body of Fig. 2. FIG. 4, a view seen in the direction of arrow m, is a view corresponding to FIG. 3 of a torsion body having a different configuration. 10...Cleaning device, 11...Front glass, 12
...Light, 14... Supply device, 16-18
......Supply conduit, 19,20...Cleaning nozzle, 25...Nozzle body, 26...Nozzle passage, 30...Twisted body, 32 ,35,13
5... Passage passage, 33, 133, 134... Open □. Fig. lFIg. 2 Fig. 3 Fi9. Mu

Claims (1)

[Claims] 1. A cleaning liquid supply device, and at least one cleaning nozzle connected to the supply device by a conduit and directed toward the front glass, the cleaning nozzle being a nozzle connected to the liquid supply conduit. In a cleaning device in which a torsion body is provided in the nozzle passage, which has a nozzle body through which a passage passes, and which has at least two cleaning liquid passage passages in its peripheral area extending obliquely to the axis of the nozzle passage, the liquid in the torsion body 30 is characterized in that the openings 33 or 133, 134 of the passage channel 32 at the end face remote from the supply conduits 16, 17, 18 are distributed non-uniformly over the circumference;
Cleaning device for the front glass of automobile lights. 2. Cleaning device according to claim 1, characterized in that the passage channels 32 extend with different slopes. 3 Opening 33 of passage passage 32 on end face of torsion body 30
The cleaning device according to claim 1 or 2, wherein 133 and 134 are provided on one circle. 4. The cleaning device according to claim 3, wherein a passage passage 35 or 135 extending along the axis of the nozzle passage 26 opens at the center of the circle. 5. Claim 3 or 4, characterized in that the intervals between adjacent openings (33 or 133, 134) of the passage passage 32 on the end face of the torsion body 30 are different.
Cleaning equipment as described in Section. 6. The cleaning device according to claim 1, wherein the passage passage 32 is formed as a groove-like recess on the circumferential surface of the torsion body 30. 7. Cleaning device according to one of claims 1 to 6, characterized in that the passage channels 32 have different cross sections.