JPS6354963A - Ultra-wide angle nozzle for head clamp cleaner - Google Patents

Abstract

PURPOSE:To improve cleaning efficiency and to permit efficient use of cleaning water by injecting the cleaning water in the form of the water drops diffusing widely and uniformly in a transverse direction so that all parts of a thin type broad head lamp are cleaned without leaving uncleaned parts. CONSTITUTION:A vortex forming cavity 7 is formed of a cylindrical wall 3 of a short cylindrical part 7 communicating with a cleaning water supplying part and an end wall surface 5 of a top wall 4 constituted at the end of the short cylindrical part 1. A draining edge 8 having the front face shape curved downward at an adequate curvature is further constituted at the front end of the top wall 4. A curved edge 9 having the front face shape curved upward or formed to a straight shape so as to comply with the shape of the edge 8 is formed to the top end in the front half part of the short cylindrical part 1. Cleaning water injection port 6 connected with side edges 10 of respectively adequate curvatures provided with the curved edge 9 and the draining edge 8 at both ends is opened to the vortex forming cavity 7. Namely, the cleaning water is injected in the form of the water drops diffused widely and uniformly in the transverse direction; therefore, the thin type broad head lamp is cleaned without leaving uncleaned parts and the cleaning efficiency is improved.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a cleaning technique for an automobile headlamp cleaner that spouts washing water for washing the headlights of an automobile while the vehicle is running. It concerns wide-angle nozzles.

[Conventional technology]

Conventionally, headlamp cleaners have been used to clean mud, insects, etc. that adhere to the front of a car's headlights while driving, and restore the headlamp's light emission performance by directing high-pressure washing water from a nozzle toward the headlamp surface. A type with a spouting structure is used.

[Problem that the invention seeks to solve]

However, in recent years, headlamps have become a part of car design, and so-called proper headlamps with different lens shapes have become mainstream. Wide headlamps are becoming more common.

For this reason, the cleaning water sprayed out from the headlamp cleaner is not able to reach the entire headlamp surface, leaving some residue behind.However, if this could be made to wash away the entire headlamp, it would not hit the headlamp and would not hit the area around the headlamp. There was a problem in that cleaning water was splashed around the edges, increasing the amount of cleaning water used, reducing cleaning efficiency, and creating a difference in cleaning between the center and the outer periphery.

The present invention was devised in view of the above-mentioned problems, and controls the spray shape so that the sprayed cleaning water is spread over a super wide angle in accordance with the surface shape of the headlamp, and also eliminates the possibility of leaving any residue after washing. Another object of the present invention is to provide an ultra-wide-angle nozzle for a headlamp cleaner that can uniformly clean the entire surface of a headlamp by effectively using a limited amount of cleaning water.

[Means for solving problems]

That is, in the ultra-wide-angle nozzle for a headlamp cleaner according to the present invention, the injection port opening at the end of the cylindrical portion is structured in a special shape, and the high-pressure cleaning water jetted from the injection port is controlled in a predetermined shape. In a headlamp cleaner that sprays high-pressure washing water onto automobile headlamps to restore the light emission efficiency, the cylindrical wall of the short cylindrical portion that communicates with the washing water supply section and the cylindrical wall of the short cylindrical portion are The end wall surface of the top wall formed at the end portion forms a vortex forming cavity, and the front end of the top wall forms a cut edge whose front shape is curved downward with an appropriate curvature,
Corresponding to the cut edge, a curved edge whose front shape is upwardly curved or straight is formed at the upper end of the front half of the short cylindrical part, and the curved edge and the cut edge have appropriate curvatures at both ends, respectively. The main feature is that a cleaning water injection port connected at a side edge is opened into the swirl forming cavity.

[Effect]

The ultra-wide-angle nozzle for headlamp cleaners supplies high-pressure cleaning water at an appropriate pressure to the vortex-forming cavity, and the cleaning water supplied to the vortex-forming cavity is applied to the water cutting edge by the water flow flowing out from the cleaning water jet port. A high-speed vortex is formed in the upper wash water separated by the wash water jet in the vicinity of the wash water injection port. Due to this vortex, when the cleaning water jetted from the cleaning water jetting port is rapidly depressurized, it becomes water droplets and is regulated by the arc-shaped water incisal edge, curved edge, and side edge. It ejects in the direction of the jet and hits the front of the headlamp at high speed.

The above-mentioned ultra-wide-angle nozzle for headlamp cleaner controls the cleaning water to be sprayed over the entire surface of the thin and wide ultra-wide-angle headlamp by the upwardly curved shape of the cutting edge and the curved edge that make up the cleaning water injection port. This allows for uniform cleaning.

〔Example〕

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

1 to 4 show the first embodiment.
The figure is a longitudinal cross-sectional view of a headlamp cleaner constructed using the cleaning water injection nozzle according to the present invention, FIG. 2 is a front view of the cleaning water injection nozzle, FIG. 3 is a plan view of the same, and FIG. 1 is a sectional view taken along the line IV-I' in the figure, and 1 is a short cylindrical part that protrudes continuously from the axis O of a spherical base 2 having a spherical outer periphery, and the spherical base 2 is an end of a nozzle case 51. The headlamp cleaner 50 is fitted into a spherical recess 52 having a fixed angle adjustment, and the headlamp cleaner 50 is fixed to a bumper a of an automobile or the like. The short cylindrical portion 1 has a cylindrical wall 3 bored from the end of the spherical base 2 to the axis O, and an end wall surface 5 of a beak-like top wall 4 formed at the end of the short cylindrical portion 1. A vortex forming cavity 7 is formed with a cleaning water injection port 6 opened at the end side. The front end 4a of the beak-shaped top wall 4 is set back slightly d from the inner diameter of the cylinder wall 3, and the side edges 4b, 4b extending at an angle α of approximately 90 degrees from the front end 4a are approximately 180 degrees apart from the inside diameter of the cylinder wall 3. The beak-like top wall 4 has a planar shape that intersects at the angle position, and the hanging width gradually increases from the front end 4a of the beak-shaped top wall 4 along the side edges 4b, forming a cut edge 8 with a downwardly curved frontal shape. This forms the upper edge of the cleaning water injection port 6. Further, reference numeral 9 denotes a curved edge formed at the upper end of the front half of the short cylindrical portion 1 in correspondence with the above-mentioned water cut edge 8, and the front surface is curved upward, and the end surface 9a is slightly bent toward the cylindrical wall 3. (approximately 8 degrees),
The curved edge 9 and the cut edge 8 are connected at both ends by side edges 10 of appropriate curvature to form the front shape of the cleaning water injection port 6.

The ultra-wide-angle nozzle for a headlamp cleaner configured as described above supplies high-pressure cleaning water with an appropriate pressure to the vortex forming cavity 7 through the nozzle case 51, so that the cleaning water in the form of water droplets is released from the cleaning water injection port 6. Spout, left and right diffusion angle β is 140
degree, and the vertical diffusion angle T of 21 degrees can be achieved.

That is, the cleaning water supplied to the vortex forming cavity 7 flows through the water cut edge 8.
is located inside the cylindrical wall 3, the upper wash water separated by the water cut edge 8 due to the water flow flowing out from the wash water injection port 6 forms a high-speed vortex in the vicinity of the wash water injection port 8.

Due to this vortex, the cleaning water jetted from the cleaning water jetting port 6 becomes water droplets when it is discharged from the cleaning water jetting port 6 and is rapidly depressurized, and forms an arcuate water incisal edge 8, a curved edge 9, and a water droplet. It is ejected in the ejection direction regulated by the side edge 10, forms a ejection pattern as shown in FIG. 5, and hits the front surface of the headlamp at high speed.

The ultra-wide-angle nozzle for headlamp cleaners has a downwardly curved shape with a water cutting edge 8 constituting the cleaning water injection port 6, and an upwardly curved shape where the curved edges 9 face each other. The spray is controlled to cover the entire surface of the wide-angle headlamp, so no residue is left behind.

6 and 7 show another embodiment of the present invention, in which the curvature of the curved edge 9 of the cleaning water injection port 6 is increased to infinity in the first embodiment. By doing this, it is made into a straight line. That is, the cleaning water injection port 6
, a water cut edge 8 whose front shape is curved upward, and a water cut edge 8
A curved edge 9 extending in the horizontal direction facing the curved edge 9 and side edges 10 of appropriate curvature at both ends of the curved edge 9 and the cut edge 8.
The cleaning water is jetted out forming a jetting pattern as shown in FIG.

The ultra-wide-angle nozzle for headlamp cleaners according to the present invention includes:
As shown in the above embodiment, in particular, by curving the frontal shape of the water cutting edge 8 upward, even if the headlamp is thin and long, there will be no unwashed residue, and the washing water will be sprayed onto the sprayed surface. The purpose is to spray evenly and increase cleaning efficiency.

〔Effect of the invention〕

The ultra-wide-angle nozzle for headlamp cleaners according to the present invention includes:
With the above configuration, the cleaning water that has turned into droplets is widely dispersed in the width direction and is evenly sprayed, so there is no leftover residue for thin and wide headlamps, improving cleaning efficiency. It has excellent features, such as not only being able to perform cleaning, but also enabling efficient use of cleaning water.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal cross-sectional view of a headlamp cleaner constructed using a cleaning water injection nozzle according to the present invention, and FIG. A front view, FIG. 3 is a plan view of the same, FIG. 4 is a sectional view taken along the line IV-■ in FIG. 2, FIG. 5 is a jet pattern diagram, and FIG. 6 is a front view of a cleaning water jet nozzle showing another embodiment. 7 is a sectional view taken along the line ■--■ in FIG. 4, and FIG. 8 is an injection pattern diagram. 1...Short cylindrical part 2...Spherical base 3...
Cylindrical wall 4...Beak-shaped top wall 5...End wall surface 6...Washing water injection lower...Worlpool forming cavity 8...Water incision 9...Curved edge 10
... Side patent applicant Koito Seisakusho Co., Ltd. Agent Patent attorney 1) Kazuo + eP Norito ω
■ Mouth 1... Short cylindrical part 2... Spherical base 3... Cylinder wall 4... Beak-shaped top wall 5... End wall surface 6... Cleaning water injection port a... Vortex forming cavity Part 8...Curved edge 9...Curved edge 10...Side edge Fig. 4 Fig. 5

Claims (1)

[Claims] In a headlamp cleaner that sprays high-pressure washing water to clean the headlamps of automobiles to restore the light emission efficiency, the cylindrical wall of the short cylindrical part that communicates with the washing water supply part and the end of the short cylindrical part are configured. The end wall surface of the top wall forms a vortex forming cavity, and at the front end of the top wall, a water cut edge whose front shape is curved downward with an appropriate curvature is formed, and the short tube corresponds to the water cut edge. A curved edge whose front shape is curved upward or straight is formed at the upper end of the front half of the part, and the cleaning water injection port is connected at both ends by side edges of appropriate curvature. An ultra-wide-angle nozzle for a headlamp cleaner characterized by opening in a vortex-forming cavity.