JPH0696135B2 - Ultra wide-angle nozzle for headlamp cleaner - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a cleaning technology for a headlamp cleaner for a vehicle, which ejects cleaning water for cleaning a headlamp of a vehicle while traveling, and is used for a headlamp cleaner. It relates to a wide-angle nozzle.

[Conventional technology]

Conventionally, high pressure washing water is directed from the nozzle toward the headlamp surface as a headlamp cleaner that cleans mud, insects, etc. adhering to the front of the headlamps of automobiles while traveling and recovers the light projection performance of the headlamps. It has a structure that ejects.

[Problems to be solved by the invention]

However, in recent years, headlamps have become a part of car design, and so-called proper type headlamps having different lens shapes for each car have become the mainstream, and in consideration of the design aspect and air resistance of the car, in general, The number of thin and wide headlamps is increasing. For this reason, the cleaning water that diffuses and sprays from the headlamp cleaner does not reach the entire headlamp surface, leaving behind unwashed water.However, if the washing water can be washed off entirely, it will not hit the headlamp and the surroundings. There is a problem in that the amount of cleaning water scattered to the surface increases, the amount of cleaning water used increases, the cleaning efficiency decreases, and a difference in cleaning occurs between the central portion and the outer peripheral portion.

The present invention was devised in view of the above problems, and controls the spray shape of the sprayed cleaning water so as to diffuse to a super-wide angle corresponding to the surface shape of the headlamp, without causing unwashed residue. It is an object of the present invention to provide an ultra-wide-angle nozzle for a headlamp cleaner, which is capable of uniformly cleaning the entire surface of the headlamp by effectively utilizing cleaning water having a limited amount of water.

[Means for solving problems]

In order to achieve the above object, an ultra wide-angle nozzle for a headlamp cleaner according to the present invention has a high-pressure washing sprayed from the injection port, in which the injection port opening at the end of the tubular portion has a special shape structure. Water that controls and diffuses water into a predetermined shape.In a headlamp cleaner that sprays and cleans high-pressure washing water on the headlamps of automobiles to recover the light projection rate, a short cylindrical wall that communicates with the washing water supply section A swirl forming cavity is formed by the end wall surface of the top wall formed at a position slightly retracted from the inner wall of the cylinder wall at the end portion of the short cylinder portion, and the front end of the top wall is formed in a beak shape. The front wall is curved downward in a concave shape with an appropriate curvature on the top wall, and the front shape is curved upward in a concave shape at the upper end of the front half of the short tubular portion corresponding to the drain edge. And its end face slightly descends toward the cylinder wall. Forming a Kyokuen, washing water injection port which is connected with the side edges of the appropriate curvature respectively at both ends of 該彎 songs edge and draining edge is to the subject matter to be opened in the swirl cavity.

[Action]

The ultra wide-angle nozzle for a headlamp cleaner supplies high-pressure cleaning water of an appropriate pressure to the swirl forming cavity, so that the cleaning water supplied to the swirl forming cavity is washed off by the water flow flowing out from the cleaning water jet port. A high-speed vortex is formed in the vicinity of the washing water jet port in the upper washing water that has been split in step. Due to this vortex, the cleaning water ejected from the cleaning water injection port becomes droplets when discharged from the cleaning water injection port and rapidly decompressed, and is regulated by an arcuate water cutting edge, curved edge and side edge. It ejects in the ejected direction and collides with the front surface of the headlamp at a high speed.

The above-mentioned ultra wide-angle nozzle for headlamp cleaner is controlled to inject the washing water over the entire surface of the thin and wide ultra-wide-angle headlamp by the curved shape of the water draining edge and the curved edge that constitute the washing water injection port facing each other. However, uniform cleaning can be performed.

〔Example〕

Embodiments of an ultra wide-angle nozzle for a headlamp cleaner according to the present invention will be described below with reference to the drawings.

FIG. 1 is a vertical cross-sectional view of a headlamp cleaner configured by using a wash water injection nozzle according to the present invention, FIG. 2 is a front view of the wash water injection nozzle, FIG. 3 is the same plan view, and FIG. Second
FIG. 4 is a cross-sectional view taken along the line IV-IV in the drawing, where 1 is a short cylindrical portion that is continuously projected from the axis O of the spherical base portion 2 having a spherical outer periphery, and the spherical base portion 2 is formed at the end of the nozzle case 51. The head lamp cleaner 50 is fixed to the bumper a or the like of the automobile by being fitted into the spherical recess 52 so that the fixed angle can be adjusted. In the short tubular portion 1, a tubular wall 3 is bored from the end of the spherical base portion 2 to the axis O, and a beak-shaped top wall 4 formed at the end of the short tubular portion 1.
The end wall surface 5 constitutes a vortex flow forming cavity portion 7 in which the wash water injection port 6 is opened on one side of the end portion of the short tubular portion 1. The front end 4a of the beak-shaped top wall 4 is formed by receding slightly from the inner diameter of the cylindrical wall 3 and extends from the front end 4a at an angle α of approximately 90 degrees.
Of the beak-shaped top wall 4 has a planar shape that intersects at a position of approximately 180 degrees of the cylindrical wall 3, and the droop width gradually increases from the front end 4a of the beak-shaped top wall 4 along the side edge 4b, and the front shape is downward. A water draining edge 8 curved in a concave shape is formed, and an upper edge portion of the wash water injection port 6 is formed. Reference numeral 9 is a curved edge formed on the upper end of the front half of the short tubular portion 1 in correspondence with the drainage edge 8, and the front shape is curved upward in a concave shape, and the end surface 9a is a tubular wall 3a.
Slightly (about 8 degrees) inclined downward, and the curved edge 9 and the water draining edge 8 are connected at both ends by side edges 10 having appropriate curvatures to form the front shape of the wash water injection port 6. .

The headlamp cleaner ultra-wide-angle nozzle configured as described above supplies high-pressure cleaning water of appropriate pressure to the swirl forming cavity 7 through the nozzle case 51, so that cleaning water in the form of water droplets can be generated from the cleaning water injection port 6. Ejection, left and right diffusion angle β is 140 degrees,
A vertical diffusion angle γ of 21 degrees can be achieved. That is,
The washing water supplied to the swirl forming cavity 7 has the water cutting edge 8 located inside the cylindrical wall 3, so that the upper washing water divided at the water cutting edge 8 by the water flow flowing out from the washing water jet port 6 is ,
A high-speed vortex is formed in the vicinity of the wash water injection port 6. Due to this swirl, the cleaning water ejected from the cleaning water injection port 6 is
When it is discharged from the wash water injection port 6 and rapidly depressurized, it becomes water droplets and also has an arc-shaped water cutting edge 8, curved edge 9 and side edge.
It ejects in the ejection direction regulated by 10, forms an ejection pattern as shown in FIG. 5, and collides with the front surface of the headlamp at a high speed.

The above-described ultra-wide-angle nozzle for a headlamp cleaner is a thin and wide ultra-wide nozzle for cleaning water, due to the curved shape below the water draining edge 8 forming the cleaning water jet port 6 and the curved shape above the curved edge 9 facing each other. The wide-angle headlamp is controlled so that it is sprayed over the entire surface, and no unwashed residue is generated.

An ultra wide-angle nozzle for a headlamp cleaner according to the present invention,
As shown in the above embodiment, in particular, since the front shape of the water draining edge 8 is curved upward in a concave shape, even if the headlamp is thin and horizontally long, there is no unwashed residue and the cleaning water is sprayed onto the surface to be sprayed. In order to increase the cleaning efficiency, it is possible to inject almost uniformly.

〔The invention's effect〕

An ultra wide-angle nozzle for a headlamp cleaner according to the present invention,
With the above-mentioned configuration, the cleaning water that has become water droplets is largely diffused in the width direction and is evenly sprayed, so that there is no unwashed residue on thin and wide headlamps, and cleaning efficiency is improved. In addition to being able to do so, it has excellent characteristics such as enabling efficient use of washing water.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view of a headlamp cleaner configured by using a cleaning water jet nozzle according to the present invention, and FIG. 2 is a front view of a cleaning water jet nozzle showing an embodiment of an ultra wide-angle nozzle for a headlamp cleaner. 3 is a plan view of the same, FIG. 4 is a sectional view taken along line IV-IV in FIG. 2, and FIG. 5 is an injection pattern diagram. 1 ... Short cylinder part, 2 ... Spherical base part 3 ... Cylinder wall, 4 ... Beak-shaped top wall, 5 ... End wall surface, 6 ... Wash water injection port, 7 ... Vortex forming cavity part, 8 ... Drainer Edge 9 ... Bent edge, 10 ... side edge

Claims (1)

[Claims] 1. A headlamp cleaner for spraying high-pressure washing water onto a headlamp of an automobile to recover the light projection rate, wherein a short cylindrical portion of a short cylinder portion communicating with a washing water supply portion and a short cylinder portion of the short cylindrical portion. The end wall surface of the top wall formed at a position slightly retracted from the inner wall of the cylindrical wall constitutes a swirl forming cavity, and the front end of the top wall is formed into a beak shape, and the end wall is formed on the top wall. The front shape constitutes a water draining edge which is curved downward in a concave shape with an appropriate curvature, and the front shape is curved upward in a concave shape at the upper end of the front half portion of the short tubular portion corresponding to the water draining edge, and its end face is curved. A curved water edge that is slightly inclined and descends toward the cylinder wall is formed, and a wash water injection port, in which the curved edge and the water draining edge are connected at both ends by side edges of appropriate curvature, is opened in the swirl forming cavity. A super wide-angle nozzle for headlamp cleaners.