JPS6354964A - 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 diffused widely and uniformly in a transverse direction so that all parts of a thin type broad head lamp are cleaned without having 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 cleaning water injection port 6 formed of a draining edge 8 which is constituted of the front end of a top wall 1 and has the front face shape curved upward or downward at an adequate curvature, a curved edge 9 which is constituted at the top end in the front half part of the short cylindrical part 1 and has the front face shape curved upward or formed to a straight shape and side edges 10 connected respectively with adequate curvatures with a curved edge 9 and a draining edge 8 at both ends in opened to said cavity 7. The plane shape of the edge 8 forms a bill-shaped projection 4a with which the position corresponding approximately to the inside diameter of the edge 9 is the start point for the top end of the adequate curvature. The projection 4a is so shaped that the edge line thereof has about 90 deg. vertical angle.

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 an automobile while driving. It concerns an ultra-wide-angle nozzle.

[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 aims 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 problems, and controls the spray shape and spray density so that cleaning water is diffused and sprayed in the front direction of the spray port over the surface shape of an ultra-wide-angle headlamp, and also It is an object of the present invention to provide an ultra-wide-angle nozzle for a headlamp cleaner that uniformly cleans the entire surface of a headlamp by effectively using a limited amount of cleaning water without causing any water loss.

[Means for solving problems]

That is, in the ultra-wide-angle nozzle for a headlamp cleaner according to the present invention, the jet nozzle that opens at the end of the cylindrical part has a special planar structure, and the high-pressure cleaning droplets are jetted from the jet nozzle. In a headlamp cleaner that controls and diffuses water into a predetermined shape and sprays high-pressure washing water onto automobile headlamps to restore the light emission efficiency, the cylindrical wall of the short cylindrical part that communicates with the washing water supply section. , and the end wall surface of the top wall formed at the end of the short cylindrical portion, and a drain formed at the front end of the top wall, the front surface of which is curved upward or downward at an appropriate curvature. a curved edge formed at the upper end of the front half of the short cylindrical portion corresponding to the water cut edge, the frontal shape of which is curved upward or straight; and the curved edge and water cut edge as appropriate at both ends. The side edges connected by curvature form a cleaning water jet opening, and the planar shape of the incisal edge forms a beak-like protrusion with the tip of the curvature starting point at a position approximately corresponding to the inner diameter of the curved edge, The gist is that the ridgeline of the beak-like projection has a planar shape with an apex angle of approximately 90 degrees.

[Effect]

The ultra-wide-angle nozzle for headlamp cleaners supplies high-pressure cleaning water at an appropriate pressure to the vortex-forming cavity, so that the cleaning water supplied to the vortex-forming cavity is activated by the water flow flowing out from the cleaning water jet port to the water cut edge. 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 ejected in the direction of the jet and collided with the front of the headlamp at high speed. At this time, the planar shape of the cleaning water injection port forms a ridgeline having an apex angle of approximately 90 degrees, with the semicircular inner diameter of the curved edge and the starting point of the tip of the curvature at a position approximately corresponding to the inner diameter of the curved edge. Since it has a deformed crescent shape formed by the outer diameter of the incisal edge consisting of a beak-like protrusion, the washing water that is jetted out diagonally upward has a shape in which the incisal edge and the curved edge, which form the washing water injection port, face each other. This enables jetting to be controlled in a thin, wide, ultra-wide-angle headlamp surface shape, and at the same time, uniform cleaning can be achieved by controlling the jetting density of droplets.

〔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.
The figure shows a first embodiment.

In the drawings, reference numeral 1 denotes a short cylindrical portion that protrudes continuously from the axis 0 of a spherical base 2 having a spherical outer periphery, and the spherical base 2 forms a fixed angle with a spherical recess 52 formed at the end of the nozzle case 51. Headlamp cleaner 5, which is adjustable and fitted, and fixes the cleaning water injection nozzle to a bumper a of an automobile, etc.
It consists of 0. The short cylindrical portion 1 has a cylindrical wall 3 bored from the end of the spherical base 2 to the axis 0, 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 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 edges 4b from the front end of the beak-shaped top wall 4. The sagging width gradually decreases to form a water cutting edge 8 whose front shape is curved upward, and 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; ), and the curved edge 9 and the cut edge 8 are connected at both ends by side edges 10 of appropriate curvature, forming 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
It is possible to achieve an ultra-wide angle of 21 degrees and a vertical diffusion angle γ of 21 degrees. That is, since the water cut edge 8 is located inside the cylindrical wall 3, the wash water supplied to the vortex forming cavity 7 is divided by the water flow flowing out from the wash water injection port 6 into the upper wash water separated by the water cut edge 8. The water forms a high-speed vortex near the cleaning water injection port 8. Due to this vortex, when the cleaning water jetted from the cleaning water jetting port 6 is discharged from the cleaning water jetting port 6 and the pressure is rapidly reduced, it becomes water droplets, and at this time, the planar shape of the cleaning water jetting port 6 changes. , the semi-circular inner diameter of the curved edge 9 and a position corresponding to the inner diameter of the curved edge 9 as the starting point A of the tip of the curvature, and a beak-like protrusion 4a forming a ridgeline with an apex angle of about 90 degrees. Since it has a deformed crescent-shaped shape formed by the outer diameter of the edge 8, the cleaning water is jetted diagonally upward forming a jetting pattern as shown in FIG.
Due to the opposing shapes of the water cut edge 8 and the curved edge 9, the spray can be controlled to form a thin and wide ultra-wide-angle headlamp surface, and at the same time, the spray density of droplets can be controlled to achieve uniform cleaning.
In addition, 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, so that the cleaning water flows down to the corner to produce a cleaning action.

That is, in the ultra-wide-angle nozzle for a headlamp cleaner, the planar shape of the cleaning water injection port 6 is formed into a modified crescent shape by the inner diameter of the curved edge 9 and the outer diameter of the cut edge 8.
This is to control the spraying of cleaning water that is jetted diagonally upward in a thin and wide manner, and at the same time to control the jetting density of droplets.The frontal shape of the cleaning water jetting port 6 can be varied as follows without changing the planar shape. The design can be changed.

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 having 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. The edges 4b, 4b intersect at approximately 180 degrees of the cylinder wall 3.

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 cut edge 8 whose front shape is curved upward, a curved edge 9 that extends in the horizontal direction opposite to the water cut edge 8, and the curved edge 9 and the water cut edge 8 at both ends, respectively. They are connected at the side edges 10 of curvature to form an injection pattern as shown in FIG.

According to this embodiment, it is possible to forcibly clean the lower corner of the ultra-wide-angle headlamp surface shape.

The washing water injection port 6 shown in FIG. 9 has a water cutting edge 8 whose hanging width is gradually increased from the front end of the beak-shaped top wall 4 along the side edge 4b, and the front shape of the water cutting edge 8 is curved downward. There is a downwardly curved water incisal edge 8, an upwardly curved curved edge 9 opposite to the water incisal edge 8, and the curved edge 9 and the water incisal edge 8 are connected at both ends by side edges 10 of appropriate curvature. The first
This makes it possible to form a spray pattern as shown in FIG. In this embodiment, it is possible to concentrate the injection center to the center of the ultra-wide-angle headlamp surface shape.

Further, the cleaning water injection port 6 shown in FIG. 11 is formed by increasing the curvature of the curved edge 9 in the embodiment shown in FIG. a curved edge 9 extending in the horizontal direction opposite to the water incision 8; the curved edge 9 and the water incision 8 are connected at both ends by side edges 10 of appropriate curvature, and a first
The spray pattern shown in FIG. 2 can be formed.

For headlamp cleaner according to the present invention! Wide angle/cheating is
As shown in the above embodiment, the planar shape of the cleaning water injection port is formed into a deformed crescent shape by the inner diameter of the curved edge 9 and the outer diameter of the cut edge 8, so that the water is ejected in an upward diagonal direction. This system controls the jetting of cleaning water in a thin and wide manner, and at the same time controls the jetting density of droplets, so even if the headlamp is thin and horizontally long, there will be no unwashed residue, and the cleaning water will be sprayed approximately evenly on the sprayed surface. - to 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 being able to

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view of a headlamp cleaner configured using a cleaning water injection nozzle according to the present invention, and FIG. 2 is a cleaning showing a first embodiment of an ultra-wide-angle nozzle for a headlamp cleaner according to the present invention. A front view of the water injection nozzle, FIG. 3 is a plan view of the same, FIG. 4 is a sectional view taken along the line IV-IV in FIG.
The figure is an enlarged view of the beak-shaped protrusion in FIG. 3, FIG. 6 is a jet pattern diagram, and FIGS. 7 to 12 are front views of main parts showing other embodiments of cleaning water jet ports with different front shapes. and a corresponding jet pattern diagram. 1...Short cylindrical part 2...Spherical base 3...
Cylindrical wall 4...Beak-shaped top wall 4a...Beak-shaped projection 4b...Side edge 5...End wall surface
6...Cleansing water injection lower...vortex forming cavity part 8
...Water cut edge 9...Curved edge 10...Side edge Patent applicant Koito Seisakusho Co., Ltd. Agent Patent attorney Front 1) Kazuo Figure 1 - C dimension ~. −I+Or−ω■mouth

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. For the vortex forming cavity consisting of the end wall surface of the top wall, a water cut edge formed at the front end of the top wall and whose front shape is curved upward or downward at an appropriate curvature, and a water cut edge corresponding to the water cut edge, Cleaning water is sprayed by a curved edge formed at the upper end of the front half of the short tube part, whose front shape is curved upward or straight, and by a side edge in which the curved edge and the cut edge are connected at both ends with appropriate curvature. The planar shape of the incised edge forms a beak-like protrusion whose tip end point of curvature starts at a position approximately corresponding to the inner diameter of the curved edge, and the ridgeline of the beak-like protrusion has an approximately 90 degree angle. An ultra-wide-angle nozzle for headlamp cleaners characterized by having a vertical angle.