JPH0459942B2 - - Google Patents

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 automobile 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 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. There are more and more head lamps. 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 was made to wash away the entire area, it would not hit the headlamp and would be scattered around the headlamp. This has led to problems such as an increase in the amount of cleaning water used, a decrease in cleaning efficiency, and 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 and spray density so that the cleaning water is diffused and sprayed in the front direction of the spray nozzle over the surface shape of the ultra-wide-angle headlamp, and also eliminates any unwashed water. To provide an ultra-wide-angle nozzle for a headlamp cleaner which can uniformly clean the entire surface of a headlamp by effectively using the limited amount of cleaning water and without causing any problem.

[Means for solving problems]

That is, the ultra-wide-angle nozzle for a headlamp cleaner according to the present invention has a jet nozzle that opens at the end of a cylindrical portion and has a special planar structure, and high-pressure cleaning liquid droplets are jetted from the nozzle. In a headlamp cleaner that controls and diffuses water into a predetermined shape, the headlamp cleaner sprays high-pressure washing water onto the headlamp of an automobile to restore its lighting efficiency, and the cylindrical wall of a short cylindrical portion that communicates with a washing water supply section; and the end wall surface of the top wall formed at the end of the short cylindrical portion,
A water cut edge is formed on the front end of the top wall, and the front shape is curved toward the upper side edge or downward from the side edge with an appropriate curvature, and the short cylindrical portion corresponds to the water cut edge. The front surface formed at the upper end of the front half has a curved edge that curves or becomes straight as it moves upward toward the side edge, and a side edge that connects the curved edge and the water cut edge with appropriate curvature at both ends, so that cleaning water can be In addition to having an open injection port, the planar shape of the incisal edge forms a beak-like protrusion with the starting point of the tip of the curvature appropriately at a position approximately corresponding to the inner diameter of the curved edge, and the ridgeline of the beak-like protrusion is approximately 90 degrees. The gist is that the planar shape is configured with an apex angle of .

[Effect]

The above ultra-wide angle nozzle for headlamp cleaner is
By supplying high-pressure washing water at an appropriate pressure to the vortex-forming cavity, the washing water supplied to the vortex-forming cavity is divided into upper washing water at 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 is regulated by the arc-shaped water incisal edge, curved edge, and side edge. The fuel ejects in the direction of the jet and hits the front of the headlamp at high speed. At this time, the planar shape of the cleaning water injection port is set such that the semi-circular inner diameter of the curved edge and the position approximately corresponding to the inner diameter of the curved edge are the starting point of the tip of the curvature, and approximately
Because it has a deformed crescent shape formed by the outer diameter of the cut edge made of beak-like protrusions that make up the ridgeline with a 90 degree apex angle, the cleaning water that jets out diagonally upwards is directly connected to the cleaning water jet. The opposing shapes of the water cutting edge and the curved edge make it possible to control the jetting to a thin, wide, ultra-wide-angle headlamp surface shape, and at the same time, control the jetting density of droplets to achieve uniform cleaning.

〔Example〕

Hereinafter, embodiments of the ultra-wide-angle nozzle for headlamp cleaners according to the present invention will be described with reference to the drawings.
1 to 5 show a first embodiment.

In the drawings, 1 is a short cylindrical portion that protrudes continuously from the axis O of a spherical base 2 having a spherical outer periphery,
The spherical base 2 is fitted into a spherical recess 52 formed at the end of a nozzle case 51 in a fixed angle adjustable manner, and constitutes a head lamp cleaner 50 for fixing the cleaning water injection nozzle to a bumper a of an automobile or the like. It consists of The short cylindrical part 1 has an axis O from the end of the spherical base 2.
A vortex flow is formed with a cleaning water injection port 6 opened on one side of the end of the short cylindrical portion 1 by the cylindrical wall 3 perforated in the cylindrical portion 1 and the end wall surface 5 of the beak-shaped top wall 4 formed at the end of the short cylindrical portion 1. Cavity 7
Configure. The front end of the beak-like top wall 4 constitutes a beak-like protrusion 4a with an appropriate curvature, and the starting point of the tip corresponds to the inner diameter position (arrow A) of the cylinder wall 3, and is slightly retracted to d. The side edges 4b, 4b extending at an angle α of approximately 90 degrees from the cylindrical wall 3 form a planar shape such that they intersect at a position of approximately 180 degrees, and extend along the side edge 4b from the front end of the beak-shaped top wall 4. The hanging width gradually decreases, and the front shape forms a curved water cutting edge 8 toward the upper side edge, forming the upper edge of the washing 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 shape is curved upward toward the side edge, and the end surface 9a is formed on the cylindrical wall 3. The direction is slightly (approximately 8
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 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 injection port 6, and the horizontal diffusion angle β is 140 degrees, and the vertical diffusion angle γ is 140 degrees.
A super wide angle 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, so that the upper wash water separated by the water cutting edge 8 due to the water flow flowing out from the washing water injection port 6 forms a high-speed vortex in the vicinity of the washing water injection port 8. do. Because of this vortex, the cleaning water jetted from the cleaning water jetting port 6 is
When the water is released from the water and the pressure is rapidly reduced, it becomes water droplets, and at this time, the planar shape of the washing water injection port 6 becomes
The inner diameter of the semicircular arc shape of the curved edge 9 and the position approximately corresponding to the inner diameter of the curved edge 9 are set as the starting point A of the tip part of the appropriate distance ratio, and approximately
Since it has a deformed crescent shape formed by the outer diameter of the cut edge 8 made of the beak-like protrusion 4a forming a ridge line with an apex angle of 90 degrees, a spray pattern as shown in FIG. 6 is formed. The cleaning water jetted obliquely upward is controlled to be sprayed into a thin and wide ultra-wide-angle headlamp surface shape by the opposing shapes of the water cutting edge 8 and the curved edge 9 that constitute the cleaning water injection port 6, and at the same time, the liquid droplets are uniform cleaning can be achieved by controlling the jetting density, and the lower end of the jetting direction of the cleaning water jetted diagonally downward is controlled to be jetted to the lower corner of the ultra-wide-angle headlamp surface shape,
This causes the washing water to flow down to the corner, causing a washing action.

That is, the ultra-wide-angle nozzle for the headlamp cleaner has the planar shape of the cleaning water injection port 6 shaped into a modified crescent shape by the inner diameter of the curved edge 9 and the outer diameter of the cut edge 8, so that the nozzle can be tilted upwardly. This is to control the jetting of cleaning water to be thin and wide, and at the same time to control the jetting density of droplets, and the front shape of the cleaning water jetting port 6 can be changed in various ways as follows without changing the planar shape. can do.

7 to 12 show other embodiments regarding the front shape of the cleaning water injection port 6. As shown in FIG. The front end of the top wall 4 constitutes a beak-like protrusion 4a with an appropriate curvature, the starting point of the tip corresponds to the inner diameter position (arrow A) of the cylinder wall 3, and the side extends from the front end at an angle α of approximately 90 degrees. Edges 4b, 4b are abbreviations of cylinder wall 3
Intersect at 180 degrees.

The cleaning water injection port 6 shown in FIG. 7 is formed by increasing the curvature of the curved edge 9 and making it infinite, thereby making it straight. The washing water injection port 6 has a water cutting edge 8 whose front shape is curved toward the upper side edge, and a curved edge 9 facing the water cutting edge 8 and extending in the horizontal direction.
The curved edge 9 and the cut edge 8 are connected at both ends by side edges 10 of appropriate curvature, so that an injection pattern as shown in FIG. 8 can be formed. According to this embodiment, it is possible to forcibly clean the lower corner of the ultra-wide-angle headlamp surface shape.

The cleaning water injection port 6 in FIG. 9 gradually increases the hanging width of the water cut edge 8 from the front end of the beak-shaped top wall 4 along the side edge 4b, and changes the front shape of the water cut edge 8 toward the lower side edge. A water cut edge 8 which is curved toward the lower side edge, a curved edge 9 which is opposite to the water cut edge 8 and curved toward the upper side edge, and the curved edge 9
and a cut edge 8 are connected at both ends by side edges 10 of appropriate curvature, so that an injection pattern as shown in FIG. 10 can be formed. In this embodiment, it is possible to concentrate the injection center at the center of the ultra-wide-angle headlamp surface shape.

Further, the cleaning water injection port 6 in FIG.
In the illustrated embodiment, the curvature of the curved edge 9 is increased,
It is made into a straight line by making it infinite, and the front shape is curved toward the lower side edge 8, the curved edge 9 that extends in the horizontal direction opposite to the side edge 8, and the curved edge 9. and a cut edge 8 are connected at both ends by side edges 10 of appropriate curvature, so that an injection pattern as shown in FIG. 12 can be formed.

As shown in the above-mentioned embodiment, the super wide-angle nozzle for headlamp cleaners according to the present invention has a planar shape of the cleaning water injection port determined by the inner diameter of the curved edge 9 and the outer diameter of the cut edge 8, as described above. By having a modified crescent-shaped configuration, it is possible to control the spraying of washing water that is ejected diagonally upward in a thin and wide manner, and at the same time to control the jetting density of droplets, so that even if the headlamp is thin and horizontally long, there will be no unwashed water left. The cleaning water is sprayed almost uniformly on the sprayed surface without causing any problem, thereby improving the 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 leaving any residue after washing and improving cleaning efficiency.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view of a headlamp cleaner constructed using a cleaning water injection nozzle according to the present invention;
FIG. 2 is a front view of a cleaning water injection nozzle showing a first embodiment of the ultra-wide-angle nozzle for a headlamp cleaner according to the present invention, FIG. 3 is a plan view of the same, and FIG. 5 is an enlarged view of the beak-like protrusion in FIG. 3, FIG. 6 is a jet pattern diagram, and FIGS. 7 to 12 each show other embodiments of cleaning water jet ports with different front shapes. FIG. 2 is a front view of a main part and a diagram of a jetting pattern corresponding thereto. 1...Short cylindrical part, 2...Spherical base, 3...Cylinder wall,
4...Beak-like top wall, 4a...Beak-like process, 4b...
Side edge, 5... End wall surface, 6... Cleaning water injection port, 7...
...vortex-forming cavity, 8... water incision, 9... curved edge,
10...Side 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 light emission efficiency, comprising: a cylindrical wall of a short cylindrical portion that communicates with a washing water supply section; and the short cylindrical portion. The vortex forming cavity is formed at the front end of the top wall, and the front shape is curved toward the upper side edge with an appropriate curvature, or the side edge is formed at the front end of the top wall. A water cutting edge that is curved downward, and a curved edge that corresponds to the water cutting edge, and a front face formed at the upper end of the front half of the short cylinder portion is curved or straight as the side edge is turned upward; A cleaning water injection port is opened by a curved edge and a side edge that connects the water cut edge with an appropriate curvature at both ends, and the planar shape of the water cut edge has a position corresponding to the inner diameter of the curved edge with an appropriate curvature. 1. An ultra-wide-angle nozzle for a headlamp cleaner, characterized in that a beak-like protrusion is formed as a starting point at the tip, and the ridgeline of the beak-like protrusion has an apex angle of approximately 90 degrees.