JPS6359360A - Super-wide-angle nozzle for head lamp cleaner - Google Patents

Abstract

PURPOSE:To uniformly wash the entire surface of a head lamp by effectively utilizing a limited quantity of water, by forming the plane shape of the jet orifice opened to the end part of a cylindrical part into a specific structure. CONSTITUTION:The high pressure washing water supplied to a vortex stream forming cavity part 7 through a nozzle case is formed into water droplets by the water stream flowing out from a washing water jet orifice 6 and the high speed vortex stream divided by a drain edge 8 and formed in the vicinity of the jet orifice 6. At this time, the drain edge 8 of the washing water jet orifice 6 is formed by the tip 4a of a top wall part 4 having a curvature of which the diameter is almost the same with the inner diameter of a curved edge 9, and the jet orifice 6 is formed so as to have a plane shape wherein the tip of the drain edge 8 is set to a start point at the inner diameter position A of the curved edge 9 and the ridgeline 4b thereof terminates at the outer diameter position of the curved edge 9 and a limit wall 11 is formed to the opening shoulder part of the jet orifice 6. As a result, the limit wall 11 suppresses the upward scattering force of the washing water injected at a corner part and a jet direction is configurationally limited to a thin wide shape.

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 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 an increasing number of thin and wide headlamps. For this reason, the cleaning water sprayed out from the headlamp cleaner does not reach the entire headlamp surface, leaving a residue behind.However, if this could be made to wash away the entire headlamp surface, it would not hit the headlamp and would not hit the surrounding area. There was a problem in that cleaning water was splashed around, 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 and spray density so that cleaning water is sprayed at an ultra-wide angle and diffused into the surface shape of the soap lamp, and in particular prevents unwashed corners. It is an object of the present invention to provide an ultra-wide-angle nozzle for a headlamp cleaner, which can uniformly clean the entire surface of a headlamp by effectively utilizing the 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 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 illumination efficiency, the cylindrical wall of the short cylindrical part that communicates with the washing water supply section. , an end wall surface of the top wall formed at the end of the short cylindrical portion, and a water cut edge formed at the front end of the top wall, and a water cut edge corresponding to the water cut edge of the short tube portion. A cleaning water injection port having a substantially rectangular front shape is opened by a curved edge formed at the upper end of the front half and side edges connecting the curved edge and the cut edge at both ends, respectively;
The water incisal edge is formed by the tip of the head wall having a curvature that is approximately the same as the inner diameter of the curved edge, and the tip of the water incisal edge starts at the curved inner diameter position and its ridge line converges at the outer diameter position of the curved edge. The main feature is that the washing water injection port is configured to have a planar shape, and a regulating wall is formed at the opening shoulder of the washing water injection port.

[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 ejects in the direction of the jet and hits the front of the headlamp at high speed. At this time, the water cut edge forms a planar shape of the cleaning water injection port starting from the curved inner diameter position and ending at the outer diameter position of the curved edge, and a regulating wall is provided at the opening shoulder of the cleaning water injection port. Because of this, the regulating wall suppresses the upward splashing of the washing water ejected from the corner of the washing water injection port, pulls down both sides of the spray pattern, and creates a thin and wide ultra-wide-angle soap lamp surface shape. At the same time as jetting control, uniform cleaning can be achieved by controlling the jetting density of droplets.

〔Example〕

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an ultra-wide-angle nozzle for a headlamp cleaner according to the present invention will be described below with reference to FIGS. 1 to 5.

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. A headlamp cleaner 5 which is adjustable and fitted and which identifies the cleaning water injection nozzle on 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 O, and an end wall surface 5 of the top wall 4 formed at the end of the short cylindrical portion 1. A vortex forming cavity 7 having a cleaning water injection port 6 opened on the - side is configured. The front end of the top wall 4 constitutes a tip starting point 4a having the same curvature as the inner diameter of the cylinder wall 3, and the starting point 4a is located at the inner diameter position of the cylinder wall 3 (arrow A
) and extends at an angle α from the front end of the cough.
, 4b form a planar shape that intersects the outer diameter of the short cylindrical portion l at approximately 180 degrees, and the front end of the top wall 4 forms a water cutting edge 8, and the upper edge of the washing water injection port 6 It forms a part. 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 water cut edge 8, and the curved edge 9 and the water cut edge 8 are connected to the side edges 10 at both ends.
The side edge 10 is a guide wall cut obliquely from the inner diameter to the outer diameter of the short cylindrical portion 1. 12, and a regulating wall 11 is formed on both shoulders of the washing water injection port 6 so that both ends of the water cut edge 8 overlap the ends of the curved edge 9 due to the relative position in a plane.

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, the cleaning water supplied to the vortex forming cavity 7 is separated from the water flow flowing out from the cleaning water injection port 6 by the water cutting edge 8, and the cleaning water is divided by the high speed vortex formed near the cleaning water injection port 8. The cleaning water jetted from the jetting port 6 becomes water droplets. At this time, the water cut edge 8 of the cleaning water injection port 6 is formed by the tip 4a of the top wall 4 having a curvature that is approximately the same as the inner diameter of the curved edge 9, and the tip of the water cut edge 8 starts from the inner diameter position A of the curved edge 9. and the planar shape of the cleaning water injection port 6 is configured such that the ridge line 4b ends at the outer diameter position of the curved edge 9, and the regulating wall 11 is formed at the opening shoulder of the cleaning water injection port 6. The regulation wall 1
1 suppresses the splashing of the cleaning water spouted from the cleaning water jetting port 6 upward at the corners, regulates the jetting direction of the cleaning water to the shape of the thin and wide ultra-wide-angle headlamp surface, and at the same time controls the jetting density of droplets. The purpose is to spray uniformly and improve cleaning efficiency.

Next, FIGS. 6 and 7 show another embodiment of the present invention, in which the surface of the regulating wall 11 is further expanded in order to lower the cleaning pattern on both sides.

That is, in this embodiment, the guide wall 12 constituting the side edge 10 of the cleaning injection port 6 is constructed continuously by a tangent line extending from the inner diameter of the cylinder wall 3, and the tangential structure of the guide wall 12 forms a curved edge. The area of the regulating wall 11 portion of the water cutting edge 8 that covers the water cut edge 9 is increased, and the force of the regulating wall 11 to suppress scattering of the washing water in the upward direction at the corner that is ejected from the washing water injection port 6 is increased, and the direction in which the washing water is ejected is It has an excellent effect of regulating the shape to be thin and wide.

〔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 drawings]

FIG. 1 is a vertical cross-sectional view of a headlamp cleaner configured using a cleaning water injection nozzle according to the present invention, and FIG. 2 is a cleaning water showing a first embodiment of an ultra-wide-angle nozzle for a headlamp cleaner according to the present invention. A front view of the 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. 2, FIG. 5 is a sectional view taken along the line V-V in FIG. 2, and FIG. FIG. 7 is a vertical sectional view of the main part showing the embodiment, and is a sectional view taken along the line ■--■ in FIG. 6. ■...Short cylindrical part 2...Spherical base 3...
Cylinder wall 4... Top wall 4a... Starting point
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 11
... Regulation wall 12 ... Guidance wall patent applicant
Koito Seisakusho Co., Ltd. Representative Patent Attorney 1) Kazuo Figure 1 Figure 2 Figure 4 Figure 1...Short tube part 2...Spherical base Figure 5 Figure 3...Cylinder wall 4...Top wall Figure 6 Figure 7

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. a vortex forming cavity formed of an end wall surface of the top wall, a water cut edge formed at the front end of the top wall, and a curved edge formed at the upper end of the front half of the short cylindrical portion corresponding to the water cut edge; A cleaning water injection port having a substantially rectangular front shape is opened by the side edges connecting the curved edge and the water cut edge at both ends, and the tip of the top wall has a curvature that is approximately the same as the inner diameter of the curved edge. The tip of the water incisal edge has a planar shape that starts at the inner diameter position of the curved edge, and the ridge line converges at the outer diameter position of the curved edge, and is regulated by the opening shoulder of the washing water injection port. An ultra-wide-angle nozzle for headlamp cleaners that features a wall.