JPS63242360A - Wide-angle nozzle for head lamp cleaner - Google Patents

Abstract

PURPOSE:To efficiently diffuse and spray ejected washing water while forming water droplets, by providing a turblent flow forming bead projection to the inner end of a washing water jet orifice on the drain edge side thereof so as to be formed in a protruding state on the side of the vortex stream forming cavity part of said inner end. CONSTITUTION:The washing water supplied to a vortex stream forming cavity part 8 under appropriate pressure forms the high speed water stream from a washing water jet orifice 7. At this time, since a bead projection 11 is provided to the inner end of the jet orifice 7, the upper part washing water flows while divided to form a high speed vortex stream in the vicinity of the jet orifice 7. Since this vortex stream is formed as a turblent stream wherein the center of the vortex stream always vibrates by the water stream deflecting action of the bead projection 11, said vortex stream is rapidly reduced in pressure when discharged from the jet orifice 7 to be formed into water droplets. Then, the washing water is ejected at a predetermined diffusion angle in the jet direction regulated by a water jet direction of regulating edge 9 whose front edge protrudes in a bill shape and a drain edge 10 and impinges against the front surface of a head lamp at a high speed to wash the same.

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 wide-angle nozzles.

[Conventional technology]

Traditionally, 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 emitting 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 have become mainstream, and thin and wide headlamps are generally preferred when considering car design and air resistance. The number is increasing. For this reason, the cleaning water that is diffused and jetted from the headlamp cleaner does not reach the entire headlamp surface, leaving some residue behind. However, if the jet shape is controlled so that the entire surface of the headlamp can be washed away, the headlamp can be sprayed with five points. There was a problem in that the pressure distribution of the cleaning water was uneven, resulting in a difference in cleaning between the center and the outer periphery.

The present invention was devised in view of the above problems, and it 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 the spray water is sprayed over the entire headlamp without leaving any residue. The purpose of the present invention is to propose a wide-angle nozzle for a dosin pump cleaner to uniformly clean the area.

[Means for solving problems]

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 its light emission efficiency, and the cylindrical wall of a short cylindrical part that communicates with a washing water supply section. and a vortex forming cavity is formed at the top by the inner surface of the top wall formed at the end of the short cylindrical portion,
On one side of the vortex forming cavity, a water cut edge whose front shape is curved downward or straight at the upper end of the front half of the short cylinder part;
A cleaning water injection port is opened, which is connected at both ends to a spray direction regulating edge whose front edge projects in a beak shape corresponding to the water cutting edge, and a vortex forming cavity at the inner end on the water cutting edge side is formed in the washing water injection port. The main feature is that a bead protrusion for forming turbulent flow is provided protruding from the side.

[Effect]

The wide-angle headlamp cleaner nozzle forms a high-speed water stream in which the cleaning water supplied to the vortex forming cavity at an appropriate pressure flows out from the cleaning water jet port. However, since a bead protrusion is formed at the inner end of the cleaning water injection port, the upper cleaning water separated at the core portion forms a high-speed vortex in the vicinity of the cleaning water injection port. This vortex flow is a turbulent flow in which the center of the vortex constantly vibrates due to the water flow direction changing action of the bead protrusion, so that the cleaning water jetted from the cleaning water jetting port is rapidly depressurized. At the same time as becoming water droplets,
It ejects in a direction regulated by the fountain direction regulating edge and water cutting edge, and hits the front of the headlamp at high speed. At this time, the beak-shaped fountain direction regulating wall constituting the cleaning water jetting port extends in the cleaning water jetting direction and has a predetermined opening angle with the water cut edge, so that the cleaning water spouted in an upward diagonal direction is The jet of water is controlled to the surface shape of the thin and wide ultra-wide-angle headlamp facing the cleaning water jet port, and at the same time, the jet density of droplets is controlled to achieve uniform cleaning.

〔Example〕

Embodiments 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,
Reference numeral 1 denotes a nozzle member that is fixed to a shaft hole 3 of a spherical base member 2 having a spherical outer periphery so that the axis O is continuous with the nozzle member. The nozzle case 12 is fitted into a spherical recess 14 formed at the end of the nozzle 13 in a fixed angle adjustable manner, and a headlamp cleaner is constructed by fixing the nozzle case 12 to a bumper a of an automobile or the like.

The nozzle member 1 is provided with a cylindrical wall 4 having an axis O continuous with the axial hole 3 of the spherical base member 2, and a cylindrical wall 4 having a circumference, and a top wall formed at the upper part of the cylindrical wall 4 and at the end of the nozzle member 1. 5 inner wall surface 6
Accordingly, a vortex forming cavity 8 is formed at the end of the nozzle member 1, and a cleaning water injection lower is opened on one side of the vortex forming cavity 8. The front end of the top wall 5 constitutes a beak-like projection 5a, and constitutes a fountain direction regulating edge 9 that is oblique to the axis 0 continuous to the inner wall surface 6.

Further, reference numeral 10 denotes a water cutting edge formed on the front half of the nozzle member 1 corresponding to the fountain direction regulating edge 9, which is cut approximately at right angles to the axis 0, and forms a vertical opening angle α. The water cutting edge 10 and the water fountain direction regulating edge 9 are connected at both ends to form a cleaning water injection lower having a left-right opening angle β.

At the inner end of the water cutting edge 10, the cylindrical wall 4 forms a bead protrusion 11 for turbulent flow of cleaning water, which curves and protrudes into the vortex forming cavity 8.

The wide-angle nozzle for a helad lamp cleaner configured as described above supplies high-pressure cleaning water at an appropriate pressure to the vortex forming cavity 8 through the water guide tube 3, so that the cleaning water in the form of droplets is released from the cleaning water injection lower. It is possible to achieve an ultra-wide ejection angle with a vertical diffusion angle of α and a horizontal diffusion angle of β.

That is, when cleaning water is supplied to the swirl forming cavity 8, since the swirl forming cavity 8 is configured with the bead protrusion 11, the cleaning water is jetted out at the inner edge of the water fountain direction regulating edge 9 by the water flow flowing out from the cleaning water injection lower. The upper washing water separated from the water forms a high-speed vortex near the washing water injection lower part, and collides with the inner wall surface 6 to forcibly change direction, causing the center of the vortex to constantly vibrate. The flow becomes turbulent. Due to the turbulent flow, the water pressure near the cleaning water injection lower becomes pulsating.
The cleaning water spouted from the cleaning water injection lower is discharged from the cleaning water injection lower and is rapidly depressurized and becomes water droplets.
The water is ejected in a direction regulated by the water fountain direction regulating edge 9 and the water cutting edge 10, and hits the front surface of the headlamp at high speed. When this droplet-shaped cleaning water is sprayed onto the headlamp surface, it exhibits an excellent effect of forcibly peeling off dirt adhering to the surface to be cleaned and at the same time blowing it away.

That is, the wide-angle nozzle for a headlamp cleaner according to the present invention is capable of converting the jetted cleaning water into water droplets due to the structure of the single bead protrusion formed at the inner end of the cleaning water injection lower, and the basic configuration is as follows: The design of the side surface shape can be changed in various ways as shown below without changing the structure.

First, the wide-angle nozzle for the navel lamp cleaner shown in Figure 5 is
The axis 0 is configured such that the injection direction of the cleaning water injection lower forms an acute angle γ, and a spherical inner wall surface 6 is formed on the inner surface of the top wall 5, and a vortex forming cavity is formed on the inner edge of the water cut edge 10. A turbulent flow forming structure is formed in which bead protrusions 11 protrude in the direction of the section 8.

In addition, the wide-angle nozzle for headlamp cleaner shown in Figure 6 is
The top wall 5 is located at the tip of the vortex forming cavity 8, and forms a spherical inner wall surface 6 on the inner surface, and the fountain direction regulating edge 9 of the cleaning water injection lower is arranged in a direction that is not continuous with the spherical inner wall surface 6. This figure shows a turbulent flow forming structure in which a bead protrusion 11 protruding in the direction of the vortex forming cavity 8 is formed on the inner edge of the water cutting edge 10.

〔Effect of the invention〕

Since the wide-angle nozzle for a headlamp cleaner according to the present invention is constructed as described above, the bead protrusion protruding from the vortex-forming cavity allows the cleaning water completely turned into droplets to be accurately directed onto the cleaning surface of the opposing headlamp. Since it has a structure in which the spray is diffused and sprayed, it suppresses the washing water splashing outside the thin and wide headlamp, and at the same time prevents any residue from being left behind, improving the washing efficiency. is extremely large.

[Brief explanation of drawings]

FIG. 1 is a side sectional view of a cleaning water injection nozzle showing a first embodiment of a wide-angle nozzle for a headlamp cleaner according to the present invention;
Figure 2 is a front view of the same, Figure 3 is a plan view of the same, Figure 4 is a partially cutaway side sectional view showing the installation state of the wide-angle nozzle for headlamp cleaner, and Figures 5 and 6 are respectively cleaning water. FIG. 7 is a side sectional view showing another embodiment in which the structure of the injection port is different. 1... Nozzle member 2... Spherical base member 5...
・Top wall 6...Inner wall surface 7...Washing water injection port 8...Worlpool forming cavity 9...Fountain direction regulating edge 10...Water cut edge 11...Bead protrusion Patent applicant Co., Ltd. Koito Seisakusho agent Patent attorney front 1) Japanese man l... nozzle member 2... r, do shape, (member 5... f1 part wall 6... inner wall surface 7... cleaning water injection port 8... Vortex forming cavity 9... Fountain direction regulating edge 10... Cutting edge 11... Bead protrusion 5 Figure 6

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 headlamp cleaner is configured on the cylindrical wall of the short cylindrical part communicating with the washing water supply part and the end of the short cylindrical part. A vortex forming cavity is formed at the top by the inner surface of the top wall, and on one side of the vortex forming cavity, a cut edge whose front shape is curved downward or straight is provided at the upper end of the front half of the short cylindrical part. , a cleaning water injection port is opened, which is connected at both ends to a fountain direction regulating edge whose front edge protrudes like a beak and corresponds to the water incision, and a vortex forming cavity at the inner end on the water cut edge side formed in the cleaning water injection port; A wide-angle nozzle for a headlamp cleaner, characterized by a bead projection for forming turbulent flow protruding from the side.