JPH0459941B2 - - 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 largely and uniformly in a transverse direction so that all parts of a thin type broad head lamp are cleaned without having the 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 upward 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 at the top end in the front half part of the short cylindrical part 1. Cleaning water injection port 6 connected with wide 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] [Industrial Application Field] The present invention relates to a cleaning technology for an automobile headlamp cleaner that spouts washing water for washing the headlights of a car while the car is running, and an ultra-wide-angle headlamp cleaner for the headlamp cleaner. It concerns the nozzle.

[Conventional technology]

Conventionally, headlamp cleaners have been used to clean mud, insects, etc. that adhere to the front of a car's headlamp while driving, and restore the headlamp's light emitting performance.It has a structure that sprays high-pressure cleaning water from a nozzle toward the headlamp surface. are 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, which have different lens shapes for each car, have become mainstream, and when considering car design and air resistance,
In general, thin and wide headlamps are becoming more common. For this reason, the cleaning water that diffuses and jets out from the headlamp cleaner does not reach the entire headlamp surface, leaving some residue behind.However, if this could be washed away, the cleaning water would diffuse around the headlamp. However, there was a problem in that the amount of cleaning water used increased and the cleaning efficiency decreased.

The present invention was devised in view of the above-mentioned problems, and controls the spray shape so that the sprayed cleaning water is diffused over an ultra-wide angle in accordance with the surface shape of the thin and wide headlamp. It is an object of the present invention to provide an ultra-wide-angle nozzle for a headlamp cleaner, which does not cause water leakage and can effectively utilize the limited amount of cleaning water.

[Means for Solving the Problems] That is, the ultra-wide-angle nozzle for a headlamp cleaner according to the present invention has an injection port that opens at the end of the cylindrical portion and has a specially shaped structure. It controls and diffuses the jetting high-pressure washing water into a predetermined shape.
In a headlamp cleaner that sprays high-pressure washing water onto the headlamp of an automobile to restore its light projection efficiency, the cylindrical wall of a short cylindrical portion that communicates with a washing water supply section;
The end wall surface of the top wall formed at the end of the short cylindrical portion forms a vortex forming cavity, and the front end of the top wall has a beak-like top wall whose hanging width gradually decreases from the front end along the side edge. The front shape forms a curved cut edge toward the upper side edge, and corresponding to the cut edge, the front shape curves toward the upper side edge or forms a straight line at the upper end of the front half of the short tube portion. At the same time, the edge forms a curved edge that slopes downward slightly toward the cylinder wall, and the cleaning water injection port, which connects the curved edge and the cut edge with side edges of appropriate curvature at both ends, is connected to the vortex flow. The gist is that the opening is formed in the formed cavity.

[Effect]

The above ultra-wide angle nozzle for headlamp cleaner is
By supplying high-pressure washing water at an appropriate pressure to the swirl forming cavity, the washing water supplied to the swirl forming cavity is divided into upper washing water separated by the water cut edge by the water flow flowing out from the washing water jet port. A high-speed vortex is formed near the cleaning 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 the jet is regulated by the water cutting edge, curved edge, and side edge. It ejects in the direction of the headlight and hits the front of the headlamp at high speed.

The above ultra-wide angle nozzle for headlamp cleaner is
By controlling the upwardly curved shape of the opposing side edges of the water cutting edge and the curved edge that constitute the washing water injection port, the washing water is controlled to be sprayed over the entire surface of the thin and wide ultra-wide angle headlamp, thereby leaving no residue after washing. There is no such thing.

〔Example〕

DESCRIPTION OF THE PREFERRED EMBODIMENTS Examples 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 relate to a first embodiment, in which FIG. 1 is a longitudinal sectional view of a head lamp cleaner constructed using a cleaning water injection nozzle according to the present invention, and FIG.
The figure is a front view of the cleaning water injection nozzle, FIG. 3 is a plan view of the same, and FIG. 4 is a sectional view taken along the - line in FIG.
It is a short cylindrical part that protrudes continuously from the spherical base 2.
This constitutes a headlamp cleaner 50 which is fitted into a spherical recess 52 formed at the end of a nozzle case 51 so as to be able to adjust its fixed position, thereby fixing the cleaning water injection nozzle 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.
The end wall surface 5 of the beak-shaped top wall 4 formed at the end of the short cylindrical portion 1 constitutes a vortex forming cavity 7 in which a cleaning water injection port 6 is opened on one side of the end of the short cylindrical portion 1. 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 from the cylinder wall 3.
The beak-shaped top wall 4 has a planar shape that intersects at the horizontal position, and the hanging width gradually decreases from the front end 4a of the beak-shaped top wall 4 along the side edges 4b, and the front shape is curved toward the upper side edge. The edge 8 forms the upper edge of the cleaning water injection port 6. Also, 9
is 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;
The curved edge 9 and the cutting 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 having the above configuration has a vortex forming cavity 7 through a nozzle case 51.
By supplying high-pressure washing water at the appropriate pressure,
Cleaning water in the form of water droplets is ejected from the cleaning water spout 6, and the horizontal diffusion angle β is 140 degrees, and the vertical diffusion angle γ is 140 degrees.
It is possible to achieve 21 degrees. That is, since the water cut edge 8 is located inside the cylindrical wall 3, the washing water supplied to the vortex forming cavity 7 is divided by the water flow flowing out from the wash water injection port 6 at the water cut edge 8. The upper washing water forms a high-speed vortex near the washing 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. The injection range is ejected in the injection direction regulated by the A curve, B curve, and C curve formed in the side edge 10, and the injection control corresponds to each of the curves as shown in FIG. Parts A, B,
It forms a spray pattern with C and impinges on the front face of the headlamp at high velocity.

The above ultra-wide angle nozzle for headlamp cleaner is
The upwardly curved shape of the opposing side edges of the water cutting edge 8 and the curved edge 9 that constitute the cleaning water injection port 6 prevents the cleaning water from being sprayed outside the lens, and also prevents the cleaning water from being sprayed into a thin and wide shape. The spray is controlled so that it is sprayed over the entire surface of the ultra-wide-angle headlamp, and 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 has a water incision 8 whose front shape is curved toward the upper side edge, a curved edge 9 that extends in the horizontal direction opposite to the water incision 8, and a curved edge 9 and the water incision 8 at both ends. The parts are connected by side edges 10 of appropriate curvature,
It is possible to form a spray pattern whose lower side is nearly linear as shown in FIG.

As shown in the above embodiment, the ultra-wide-angle nozzle for a headlamp cleaner according to the present invention, in particular, has the frontal shape of the water cutting edge 8 curved upward toward the side edge, so that the cleaning water can be sprayed approximately on the sprayed surface. The purpose is to spray uniformly and increase cleaning efficiency.

〔Effect of the invention〕

Since the ultra-wide-angle nozzle for a headlamp cleaner according to the present invention is configured as described above, the cleaning water in the form of water droplets is widely dispersed in the width direction and sprayed uniformly, so that it is suitable for thin and wide headlamps. It has excellent features such as not only being able to improve cleaning efficiency without leaving any residue after washing, but also enabling efficient use of washing water.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal cross-sectional view of a head lamp cleaner constructed using a cleaning water injection nozzle according to the present invention, and FIG. 2 is a first embodiment of the ultra-wide-angle nozzle for a head lamp cleaner according to the present invention. A front view of the water jet nozzle, FIG. 3 is a plan view of the same, FIG. 4 is a sectional view taken along the - line in FIG. 2, FIG. 5 is a jet pattern diagram, and FIG. 6 is a cleaning water jet nozzle showing another embodiment. FIG. 7 is a sectional view taken along the line -- in FIG. 6, and FIG. 8 is an injection pattern diagram. 1...Short cylindrical part, 2...Spherical base, 3...Cylinder wall,
4...Beak-shaped top wall, 5...End wall surface, 6...Washing water injection port, 7...Swirl flow forming cavity, 8...Water incisal edge, 9
...curved edge, 10...lateral edge.

Claims (1)

[Scope of Claims] 1. A headlamp cleaner that sprays high-pressure washing water onto the headlamp of an automobile to restore its lighting efficiency, comprising: a cylindrical wall of a short cylindrical portion that communicates with a washing water supply section; and the short cylindrical portion. The end wall surface of the top wall formed at the end of the top wall forms a vortex forming cavity, and the front end of the top wall has a beak-shaped top wall whose hanging width gradually decreases along the side edge from the front end to form a frontal shape. forms a water cut edge that is curved toward the upper side of the side edge, and corresponding to the water cut edge, the front shape of the upper end of the front half of the short cylinder portion is curved toward the upper side of the side edge or becomes straight. , the edge forms a curved edge that slopes downward slightly toward the cylindrical wall, and a cleaning water injection port in which the curved edge and the cut edge are connected at both ends by side edges of appropriate curvature is connected to the swirl forming cavity. An ultra-wide-angle nozzle for headlamp cleaners characterized by an opening.