JPS6359361A - Super-wide-angle nozzle for head lamp cleaner - Google Patents

Abstract

PURPOSE:To uniformly wash a head lamp in all parts thereof by effectively utilizing washing water, by forming the cutting angle and plane shape of the jet orifice opened to the end part of a cylindrical part into a specific structure. CONSTITUTION:The washing water supplied to a vortex stream forming cavity part 7 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 washing water jet orifice 6. At this time, the drain edge 8 is formed by the tip 4a of a top part wall 4 having a curvature of which the diameter is larger than the inner diameter of a curved edge 9, and the washing water jet orifice 6 is formed into such a plane shape that 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 to cover a short cylindrical part 1. Further, a limit wall 11 is formed to the shoulder part of the jet orifice 6 and an oblique cut structure having an angle theta formed by oblique cut parts 8a, 9a is provided thereto to enable uniform injection having a desired shape.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a headlamp cleaner, which is related to a cleaning technique for an automobile navel cleaner that spouts washing water for washing the headlamps of an automobile while driving. This relates to an ultra-wide-angle nozzle for use.

[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 navel lamps. 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. There was a problem in that cleaning water was scattered 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 problems, and controls the spray shape and spray density so that cleaning water is sprayed diffusely over the surface shape of an ultra-wide-angle headlamp, and in particular, eliminates unwashed parts in the 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 cutting angle and planar shape of the injection port opening at the end of the cylindrical part are configured to have a special shape, and the droplets ejected from the injection port are formed into a special shape. A short cylindrical part that communicates with the cleaning water supply part in a headlamp cleaner that sprays high-pressure cleaning water onto automobile headlamps to restore the light emission rate. and an end wall surface of the top wall formed at the end of the short cylindrical portion, a cut edge formed at the front end of the top wall, and a cut edge corresponding to the cut edge. The curved edges formed at the upper end of the front half of the short tube section are each cut at an angle with respect to the axis of the short tube section, and the front shape is formed by the side edges that connect the curved edges and the cut edges at both ends. A substantially rectangular cleaning water injection port is opened, and the water incisal edge is formed by a top wall tip portion having a curvature larger than the inner diameter of the curved edge, and the water incisal edge tip portion starts at the inner diameter position of the curved edge, and The gist is that the ridge line is formed into a planar shape that terminates at the outer diameter position of the curved edge, 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 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 cutting edge forms a planar shape of the cleaning water injection port starting from the inside diameter position of the curved edge and terminating the ridge line at the outside diameter position of the curved edge, and a regulating wall is provided at the opening shoulder of the cleaning water injection opening. At the same time, since the opening shoulder is lowered due to the diagonal cutting structure, the regulating wall suppresses the splashing of the washing water upward from the corner of the washing water injection port, and at the same time prevents the spraying pattern from being scattered. By pulling down both sides, spray can be controlled to a thin, wide, ultra-wide angle in the shape of a soap lamp surface, and at the same time, uniform cleaning can be achieved by controlling the spray 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. The cleaning water injection nozzle is fitted in an adjustable manner and constitutes a headlamp cleaner in which the cleaning water injection nozzle 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 0, and an end wall surface 5 of the top wall 4 formed at the end of the short cylindrical portion 1.
As a result, a vortex forming cavity 7 having a cleaning water injection port 6 opened at the end side of the short cylindrical portion 1 is formed.

The front end of the top wall 4 constitutes a tip starting point 4a having a larger curvature than the inner diameter of the cylindrical wall 3, and the starting point 4a is in contact with the inner diameter of the cylindrical wall 3 (arrow A). The side edges 4b, 4b extending from the top wall 4 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 cut edge 8, which is used to spray cleaning water. It forms the upper edge of the mouth 6. Further, reference numeral 9 denotes a curved edge formed at the upper end of the front half of the short cylindrical portion 1, corresponding to the water cut edge 8, and the curved edge 9 and the water cut edge 8 are connected to each other at both ends with the side edges 10 interposed therebetween. The side edge 10 is formed by a guide wall 12 cut at an angle from the inner diameter to the outer diameter of the short cylindrical portion l. A regulating wall 11 is formed on both shoulders of the washing water injection port 6 so that both ends of the water cutting edge 8 overlap the ends of the curved edge 9 due to the relative position in a plane. Further, both ends of the cut edge 8 and the curved edge 9 constitute diagonal cut portions 8a and 9a that are inclined downward with respect to the axis O of the short tube portion 1, and the inclined opening angle with respect to the axis O. It constitutes θ. 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, horizontal diffusion angle β is 140 degrees, vertical diffusion angle γ is 2
A super wide angle of 1 degree can be achieved. 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 larger than the inner diameter of the curved edge 9, and the tip of the water cut edge 8 starts at the inner diameter position iA of the curved edge 9. , and the ridge line 4b terminates at the outer diameter position of the curved edge 9 to form a planar shape that covers the short cylinder part 1, and a regulating wall 11 is formed at the opening shoulder of the cleaning water injection port 6, and Angle θ depending on the direction cutting parts 8a and 9a
Because it has a diagonal cutting structure, the cleaning water is sent to the cleaning water injection port 6.
At the same time, the regulating wall 11 pulls down both sides of the spray pattern while suppressing the splashing of the washing water in the upward direction at the corner where it is ejected from the washing water injection port 6, so that the washing water is ejected in a thin layer. This system regulates the shape of the ultra-wide-angle headlamp surface, and at the same time controls the spray density of droplets to ensure uniform spraying, thereby increasing 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 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 the same plan view, FIG. 4 is a sectional view taken along the line IV-TV in FIG.
The figure is a sectional view taken along line V-V in Fig. 2, Fig. 6 is a vertical sectional view of main parts showing another embodiment, and Fig. 7 is a -■-■ in Fig. 6.
FIG. 1...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 cutting edge 8a, 9a... Inclined cutting part 9... Curved edge 10... Side edge 11... Regulation wall 12...
・Guidance wall Figure 1 Figure 2

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. With respect to 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 a curved edge formed at the upper end of the front half of the short cylindrical portion corresponding to the water cut edge, respectively. The short cylinder part is cut at an angle with respect to the axis thereof, and the side edges connecting the curved edge and the water cut edge at both ends respectively open a cleaning water injection port having a substantially rectangular front shape. The edge is formed by the tip of the top wall having a radius of curvature larger than the inner diameter of the curved edge, and the cut edge tip has a planar shape that starts at the inner diameter of the curved edge and ends at the outer diameter of the curved edge. An ultra-wide-angle nozzle for a headlamp cleaner, characterized in that a regulating wall is formed at the opening shoulder of the cleaning water injection port.