JPH0738958B2 - Ultra wide-angle nozzle for headlamp cleaner - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a headlamp cleaner for a headlamp cleaner for a vehicle, which is related to a cleaning technique for a vehicle headlamp cleaner that ejects cleaning water for cleaning a vehicle headlamp during traveling. It relates to an ultra wide-angle nozzle.

[Conventional technology]

Conventionally, as a headlamp cleaner for cleaning the mud, insects, etc. adhering to the front of the headlamps of automobiles while traveling, as a headlamp cleaner for recovering the light projection performance of the headlamps, as shown in FIG.
A headlamp cleaner configured by using a washing water jet nozzle as shown in (c) has a structure in which high-pressure washing water is jetted toward the headlamp surface.

[Problems to be solved by the invention]

However, in recent years, headlamps have been incorporated as a part of car design, and so-called proper type headlamps with different lens shapes have become the mainstream for each car, and in consideration of car design and air resistance, generally, With a large number of thin and wide headlamps, sufficient turbulence cannot be obtained depending on the above-mentioned conventional wash water injection nozzle (a),
In addition, the jetting force (arrow) acts in the direction in which the jetting from the jetting port is blocked in the nozzle (b) or (c), and the washing water diffused from the headlamp cleaner does not reach the entire headlamp surface. However, if there is an unwashed residue, if you can wash it all off, the amount of cleaning water scattered around without hitting the headlamps will increase and the amount of cleaning water used will increase, increasing the cleaning efficiency. As it drops
There is a problem that a cleaning difference occurs between the central portion and the outer peripheral portion.

The present invention was devised in view of the above problems, while controlling the injection shape and injection density so as to diffuse and inject the cleaning water into the surface shape of the ultra-wide-angle headlamp, it exerts a powerful cleaning power, Moreover, it is an object of the present invention to provide a super wide-angle nozzle for a headlamp cleaner, which uniformly utilizes the cleaning water having a limited amount of water to uniformly clean the entire surface of the headlamp.

[Means for solving problems]

In order to achieve the above object, an ultra-wide-angle nozzle for a headlamp cleaner according to the present invention has a swirl forming cavity formed at an end of a tubular portion having a special shape structure, and a liquid ejected from the injection port. Blows off dirt with dripping high-pressure wash water,
In the headlamp cleaner that improves the forced peeling action by injecting high-pressure cleaning water onto the headlamps of automobiles to recover the light emission rate, the cylindrical wall of the short cylinder part communicating with the cleaning water supply part, With respect to the vortex flow forming cavity formed by the end wall surface of the top wall formed at the end of the short tubular portion, the front shape is curved or linear with an appropriate curvature, which is formed at the front end of the top wall. A water-cutting edge, a curved edge in which the front shape formed at the upper end of the front half of the short tubular portion corresponding to the water-cutting edge is curved or linear with an appropriate curvature, and the curved edge and the water-cutting edge are both ends. A cleaning water injection port is opened by the edges connected to each other with appropriate curvatures, and the water draining edge extends from the end wall of the top wall of the draining edge formed in a substantially planar shape toward the inside of the curved edge at a substantially right angle. A bead for turbulent flow with a certain amount of droop It is an gist and.

[Action]

The above-mentioned ultra-wide-angle nozzle for headlamp cleaner supplies high-pressure washing water at an appropriate pressure to the swirl forming cavity, so that the washing water supplied to the swirl forming cavity is caused by the water flow flowing out from the washing water jet port. A high-speed vortex is formed in the vicinity of the washing water jet port in the upper washing water that has been split in step. Since this eddy flow constitutes a turbulent bead portion that hangs at a substantially right angle from the end wall surface where the water cutting edge is formed in a substantially planar shape, the vortex flow split at the water cutting edge collides with the end wall surface and is forced to face. The vortex center becomes a turbulent flow that constantly vibrates.
Due to the turbulent flow, the cleaning water ejected from the cleaning water injection port becomes droplets when discharged from the cleaning water injection port and rapidly decompressed, and at the arc-shaped water cutting edge, curved edge and side edge. It jets out in a regulated jetting direction, collides with the front surface of the headlamp at a high speed, and forcibly removes the dirt adhering to the surface to be cleaned and at the same time blows it away.

〔Example〕

Hereinafter, an embodiment of an ultra wide-angle nozzle for a headlamp cleaner according to the present invention will be described with reference to the drawings.
The figure shows the first embodiment.

In the drawings, reference numeral 1 denotes a short cylindrical portion which is continuously projected from an axis O of a spherical base 2 having a spherical outer periphery.
Is a head lamp cleaner 50 for fixing the cleaning water injection nozzle to a bumper a or the like of an automobile by being fitted into a spherical recess 52 formed at an end of a nozzle case 51 so that a fixed angle can be adjusted.
The short cylindrical portion 1 has a substantially planar shape including a cylindrical wall 3 formed at the axis O from the end of the spherical base 2 and a beak-shaped top wall 4 formed at the end of the short cylindrical portion 1. The end wall surface 5 constitutes a vortex flow forming cavity portion 7 in which the wash water injection port 6 is opened on one side of the end portion of the short tubular portion 1. The front end 4a of the beak-shaped top wall 4 is slightly retracted with respect to the inner diameter position of the cylindrical wall 3 and is approximately 90 degrees from the front end 4a.
The side edges 4b, 4b extending at an angle α of degrees form a planar shape such that they intersect at an approximately 180 degree position of the cylindrical wall 3, and gradually extend from the front end 4a of the beak-shaped top wall 4 to the side edge 4b. The dripping width h becomes smaller, and the front shape constitutes a turbulent flow bead portion composed of the water cutting edge 8 curved upward, and forms the upper edge of the wash water injection port 6. Also, 9 is a curved edge formed at the upper end of the front half of the short tubular portion 1 corresponding to the drain edge, the front shape is curved upward, and the end surface 9a is slightly (approximately) toward the tubular wall 3. (8 degrees), and the curved edge 9 and the water drain edge 8 are connected at both ends by side edges 10 having appropriate curvatures to form the front shape of the wash water injection port 6. The headlamp cleaner ultra-wide-angle nozzle configured as described above supplies high-pressure cleaning water of appropriate pressure to the swirl forming cavity 7 through the nozzle case 51, so that cleaning water in the form of water droplets can be generated from the cleaning water injection port 6. Ejection, 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, when the high-pressure cleaning water is supplied to the swirl forming cavity 7, the water cutting edge 8 is located inside the cylindrical wall 3 at the cleaning water injection port 6, so that the water cutting edge is generated by the water flow flowing out from the cleaning water injection port 6. The upper wash water divided in 8 forms a high-speed vortex near the wash water injection port 6. Since this vortex flow forms a turbulent bead that droops at a substantially right angle (droop width h) from the end wall surface 5 in which the water cutting edge 8 is formed in a substantially planar shape, the vortex flow split at the water cutting edge 8 is the end wall surface 5 The vortex center vibrates continuously (see Fig. 5) and becomes a turbulent flow. Due to this turbulent flow, the water pressure in the vicinity of the wash water jet port 6 pulsates, and the wash water jetted from the wash water jet port 6 is discharged from the wash water jet port 6 and becomes a droplet when rapidly depressurized. In addition, the arc-shaped water draining edge 8, the curved edge 9 and the side edge 10 ejected in the ejection direction regulated by the sixth
An ejection pattern as shown in the figure is formed to hit the front surface of the headlamp at high speed. The water that has been made into droplets is
The cleaning water constitutes the cleaning water injection port 6, and the water cutting edge 8 and the curved edge 9
When the spray control is applied to a thin and wide ultra wide-angle headlamp surface shape due to the opposed shapes, the excellent effect of forcibly peeling off the dirt adhering to the surface to be cleaned and at the same time blowing off the dirt is exhibited.

That is, the super wide-angle nozzle for a headlamp cleaner according to the present invention is arranged such that the flush water injection port 6 has a substantially planar end wall surface 5 of the top wall 4 of the swirl forming cavity 7 and extends substantially inward from the curved edge 9 toward the inside. By constructing the water cutting edge 8 having an appropriate amount of drooping width h extending, a bead portion for turbulent flow is formed, and it is possible to change the washing water into a water drop shape. Therefore, the front shape of the flush water injection port 6 can be variously modified as follows without changing the cross-sectional shape of the turbulent flow bead portion.

7 to 14 show another embodiment relating to the front shape of the cleaning water injection port 6, and the plane shape thereof is the same as that of the above embodiment, as shown in FIG. Mouth 6
The swirl forming cavity 7 includes a water draining edge 8 having an appropriate amount of hanging width h extending from the substantially planar end wall surface 5 of the top wall 4 toward the inside of the curved edge 9 at a substantially right angle.

The flush water injection port 6 in FIG. 7 is made linear by increasing the curvature of the curved edge 9 to make it infinite. The flush water injection port 6 has a water draining edge 8 whose front shape is curved upward, a curved edge 9 which extends in the horizontal direction facing the water draining edge 8, and the curved edge 9 and the water draining edge 8 are appropriately provided at both ends. The side edges 10 having a curvature are connected to each other so that an injection pattern as shown in FIG. 8 can be formed.

The flush water injection port 6 of FIG. 9 is formed by gradually increasing the hanging width of the water cutting edge 8 from the front end of the beak-shaped top wall 4 along the side edge 4b, and bending the front shape of the water cutting edge 8 downward. Yes, the water curving edge 8 curved downward, the curving edge 9 facing the water cutting edge 8 and curving upward, and the curving edge 9 and the water cutting edge 8 are connected to each other at side edges 10 having appropriate curvatures. It is configured so that an injection pattern as shown in FIG. 10 can be formed.

Further, the flush water injection port 6 in FIG. 11 is made linear by increasing the curvature of the curved edge 9 in the embodiment of FIG. 9 to make it infinite, and the front shape is curved downward. The draining edge 8 and the curved edge 9 that extends in the horizontal direction facing the draining edge 8 and the curved edge 9 and the draining edge 8 are connected by side edges 10 having appropriate curvatures at both ends. The injection pattern shown in the figure can be formed.

Further, the flush water injection port 6 of FIG. 13 is made linear by increasing the curvature of the water cutting edge 8, the curved edge 9 and the side edge 10 in each of the above embodiments to make them infinite. The shape is a substantially rectangular shape, and an injection pattern as shown in FIG. 14 can be formed.

An ultra wide-angle nozzle for a headlamp cleaner according to the present invention,
As shown in the above embodiment, when high-pressure washing water is supplied to the vortex flow forming cavity portion 7, turbulent flow is generated by the turbulent flow bead portion formed by the water cutting edge 8, and the water pressure in the vicinity of the washing water jet port 6 due to the turbulent flow is generated. The washing water spouted from the washing water spouting port 6 becomes water droplets due to the pulsation, and the washing water is jetted at a wide angle corresponding to the super wide-angle headlamp surface shape without causing left-right separation of the jetting pattern. It is possible to exert a strong cleaning action of forcibly peeling off the dirt adhering to the cleaning surface, and at the same time, blowing it off and removing it, so that the cleaning efficiency can be increased.

〔The invention's effect〕

An ultra wide-angle nozzle for a headlamp cleaner according to the present invention,
With the above configuration, the washing water that has become water droplets is largely diffused in the width direction and exerts a strong washing power, and is uniformly sprayed on the surface to be washed, so unwashed residue occurs in the thin and wide headlamp. It has excellent characteristics such as that the cleaning efficiency can be improved without the above.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view of a headlamp cleaner configured by using a cleaning water jet nozzle according to the present invention, and FIG. 2 is a washing 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 jet nozzle, FIG. 3 is a plan view of the same, FIG. 4 is a sectional view taken along line IV-IV in FIG. 2, and FIG. 5 is an enlarged view showing the action of the swirl forming cavity in FIG. 6
FIG. 7 is an injection pattern diagram, FIG. 7 to FIG. 14 are main part front views showing other embodiments relating to wash water injection ports having different front shapes, and injection pattern diagrams corresponding thereto, FIG.
(A) to (C) are cross-sectional views of essential parts of a conventional cleaning water jet nozzle. 1 ... Short cylinder part, 2 ... Spherical base part 3 ... Cylinder wall, 4 ... Top wall 5 ... End wall surface, 6 ... Wash water injection port, 7 ... Vortex forming cavity part, 8 ... Water cutting edge 9 …… Bent edge, 10 …… side edge

Claims (1)

[Claims] 1. A headlamp cleaner for spraying high-pressure washing water onto a headlamp of an automobile to recover the light projection rate, wherein a short cylindrical portion of a short cylinder portion communicating with a washing water supply portion and a short cylinder portion of the short cylindrical portion. With respect to the vortex flow forming cavity formed by the end wall surface of the top wall formed at the end, a water cutting edge which is formed at the front end of the top wall and whose front shape is curved or has a straight line with an appropriate curvature, A curved edge in which the front shape formed at the upper end of the front half portion of the short tubular portion is curved or linear in correspondence with the drainage edge, and the curved edge and the drainage edge are appropriately curved at both ends. An appropriate amount of hanging width is formed by opening the washing water injection port by the connected side edges and extending toward the inside of the curved edge at a substantially right angle from the end wall surface formed in the substantially planar shape of the top wall of the water draining edge. A turbulent bead portion having a Ultra-wide-angle nozzle lamp cleaner.