JPH0453333Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention relates to a cleaning technology for an automobile headlamp cleaner that spouts washing water to clean the headlights of an automobile while the car is running. It concerns the nozzle.

[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 attempts to solve]

However, in recent years, headlamps have become a part of car design, and so-called proper-type headlamps have become mainstream, and in consideration of car design and air resistance, thin and wide headlamps are becoming more common. . For this reason, the cleaning water sprayed out from the headlamp cleaner does not reach the entire headlamp surface, leaving some residue behind.However, if the entire headlamp could be washed away, the water would scatter around the headlamp without hitting the headlamp. This has resulted in 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 problems, and controls the spray shape and spray density so that the cleaning water is sprayed diffusely over the surface shape of the wide-angle headlamp, and uniformly sprays the entire surface of the headlamp without leaving any residue. The purpose of this invention is to propose a wide-angle nozzle for a headlamp cleaner that can be used to clean the headlamp cleaner.

[Means for solving problems]

That is, the wide-angle nozzle for a headlamp cleaner according to the present invention is used in a headlamp cleaner that sprays high-pressure washing water onto the headlamp of an automobile to restore the light emitting efficiency. A vortex forming cavity is formed at the top by the wall and the inner surface of the top wall formed at the end of the short cylindrical part, and a front surface is formed on one side of the vortex forming cavity at the upper end of the front half of the short cylindrical nozzle member. Opening a washing water fountain in which a water incisal edge whose shape is curved downward or straight, and a water fountain direction regulating edge whose front edge corresponding to the water incisal edge protrudes like a beak from the water incisal edge are connected at both ends. In addition, the gist is that the side cross-sectional shape of the fountain direction regulating edge is constituted by a convex curved surface having an appropriate curvature.

[Effect]

The above-mentioned wide-angle nozzle for a headlamp cleaner 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 drained by the water flow flowing out from the cleaning water jet port. A high-speed vortex is formed in the upper wash water separated at the edge near the wash water injection port. Due to this vortex, the cleaning water jetted from the cleaning water jetting port becomes water droplets when the pressure is rapidly released from the cleaning water jetting port, and forms an arcuate water incisal edge, a curved edge, and a side edge. It ejects in a regulated direction and hits the front of the headlamp at high speed. At this time, the beak-shaped fountain direction regulating wall constituting the cleaning water injection port extends in the cleaning water injection direction, and its side cross-sectional shape is constituted by a convex curved surface having an appropriate curvature.
In combination with the opening angle with the water cutting edge, the cleaning water that is jetted out diagonally upward is controlled to be jetted onto the thin and wide ultra-wide-angle headlamp surface facing the cleaning jetting port, and at the same time, the jetting density of droplets is controlled. can be cleaned evenly.

〔Example〕

DESCRIPTION OF THE PREFERRED EMBODIMENTS Examples of the wide-angle nozzle for headlamp cleaners according to the present invention will be described below with reference to the drawings.

1 to 4 show a first embodiment, in which 1 is a spherical base member 2 having a spherical outer periphery, and a shaft hole 3 of the spherical base member 2. It is a nozzle member, and the spherical base member 2 is fitted into a spherical recess 14 formed at the end of a water pipe 13 fixed to a nozzle case 12 so as to be able to adjust a fixed angle. Nozzle case 1
2 is hardened to constitute a headlamp cleaner. The nozzle member 1 has a shaft hole 3 of the spherical base member 2.
A cleaning wall 4 that is concentric with the axis O that is continuous with the nozzle member 1 is bored, and a spherical inner wall surface 6 of the top wall 5 formed at the end of the nozzle member 1 opens on one side of the end of the nozzle member 1. A vortex forming cavity 8 is formed inside the water injection port 7 . The front end of the top wall 5 has an appropriate curvature and constitutes a beak-shaped projection 5a projecting from the outer diameter surface of the nozzle member 1, and has an axis O continuous to the vortex forming cavity 8.
The fountain direction regulating edge 9 has a side cross-sectional shape formed by a convex curved surface having an appropriate curvature s.

Further, 10 is a water cutting edge formed on the front half of the nozzle member 1 corresponding to the fountain direction regulating edge 9, and is cut approximately at right angles to the axis O.
The water cutting edge 10 and the water fountain direction regulating edge 9 are connected at both ends to form the front shape of the cleaning water injection port 7.

The wide-angle headlamp cleaner nozzle configured as described above supplies high-pressure cleaning water at an appropriate pressure to the vortex forming cavity 8 through the water pipe 13, so that cleaning water in the form of water droplets is jetted out from the cleaning water injection port 7. , it is possible to achieve an ultra-wide angle with a vertical diffusion angle of α and a horizontal diffusion angle of β.

That is, when cleaning water is supplied to the vortex forming cavity 8,
The upper wash water that flows out from the washing water injection port 7 is divided at the inner edge of the fountain direction regulating edge 9, and forms a high-speed vortex near the washing water injection port 7. The vortex flow separated at the edge 9 collides with the spherical inner wall surface 6 and is forced to change direction, resulting in a turbulent flow in which the vortex center constantly vibrates. Due to this turbulent flow, the water pressure near the cleaning water jetting port 7 becomes pulsating, and the cleaning water jetted from the cleaning water jetting port 7 is rapidly depressurized and becomes water droplets. At the same time, the water jets out in the jetting direction regulated by the fountain direction regulating edge 9 and the water cutting edge 10, and collides with the front surface of the headlamp at high speed. At this time, the jetted water passes through the convex curved surface of the fountain direction regulating edge 9 having a curvature s, so the cleaning water that has passed through the cleaning water injection port 7 is rapidly depressurized and safely turns into droplets. , the spray is uniformly sprayed onto the spray target surface. This droplet-shaped cleaning water is
When sprayed onto the headlamp surface, it has an excellent effect of forcibly peeling off dirt adhering to the surface to be cleaned and simultaneously blowing it away.

That is, the wide-angle nozzle for a headlamp cleaner of the present invention has a spray direction regulating edge 9 projecting like a beak from the water cut edge 10 on the upper edge of the cleaning water injection port 7 so as to face the spray angle. It is characterized in that the side cross-sectional shape is constituted by a convex curved surface having an appropriate curvature s, and the side shape can be changed in various designs as follows without changing the basic configuration. can.

First, the wide-angle headlamp cleaner nozzle shown in _FIG . 6, and a vortex forming cavity 8 in which a bead protrusion 11 projecting inward is formed on the inner edge of the cut edge 10.

Further, the wide _- angle nozzle for a headlamp cleaner shown in FIG. Large protruding bead protrusion 1
1 and a vortex forming cavity 8 formed therein.

[Effect of idea]

Since the wide-angle nozzle for a headlamp cleaner according to the present invention is constructed as described above, the cleaning water in the form of water droplets is accurately diffused onto the cleaning surface of the opposing headlamp, and is evenly sprayed, resulting in a thin design. The cleaning efficiency can be improved by suppressing the splashing of cleaning water outside the wide headlamp, and at the same time, preventing any residue from being left behind.The practical effects of this invention after implementation are extremely large.

[Brief explanation of the drawing]

Fig. 1 is a side sectional view of a cleaning water injection nozzle showing a first embodiment of the wide-angle nozzle for a headlamp cleaner according to the present invention, Fig. 2 is a front view thereof, Fig. 3 is a plan view thereof, and Fig. 4 5 is a partially cutaway side sectional view showing the installation state of the wide-angle nozzle for headlamp cleaner.
This figure and FIG. 6 are side sectional views showing other embodiments in which the cleaning water jetting directions are different. 1... Nozzle member, 2... Spherical base member, 5...
Top wall, 6... Spherical inner wall surface, 7... Cleaning water injection port, 8... Whirlpool forming cavity, 9... Fountain direction regulating edge, 10... Water cut edge, 11... Bead protrusion.

Claims (1)

[Scope of utility model registration request] In a headlamp cleaner that sprays high-pressure washing water onto the headlamp of an automobile to restore its light projection efficiency, the cylindrical wall of a short cylindrical portion that communicates with the washing water supply section and the top portion formed at the end of the short cylindrical portion are provided. A vortex-forming cavity is formed at the top by the inner surface of the wall, and on one side of the vortex-forming cavity, a cut edge whose front shape is curved downward or straight at the upper end of the front half of the short cylindrical nozzle member. Then, a cleaning water injection port is opened, which is connected at both ends of a fountain direction regulating edge whose front edge corresponds to the water incisal edge and projects like a beak from the water incisal edge, and the side cross-sectional shape of the fountain direction regulating edge is adjusted appropriately. A wide-angle nozzle for a headlamp cleaner, characterized in that it is constructed of a convex curved surface having a curvature.