JPS6359363A - Nozzle for head lamp cleaner - Google Patents

Abstract

PURPOSE:To increase the degree of freedom in the molding of a nozzle and to finely control washing water, by providing the collar member engaging with a nozzle case and a nozzle member having a washing water jet orifice formed thereto as separate molded bodies to form a plurality of split structures. CONSTITUTION:A collar member 1 having a spherical engaging outer peripheral surface 2 is constituted so that the inner surface of the water passing port 3 opened to the bottom surface of said collar member 1 forms a short inner cylinder 4 and the depressed part 5 reaching the outer peripheral part of the cylinder 4 from the upper surface side of the collar member 1 is formed. A nozzle member 6 wherein a top wall 8 is formed to the upper end of a cylindrical main body 7 has such a structure that the lower end of the cylindrical main body 7 is engaged wit the depressed part 5 of the collar member 1 and the lower end of a water passage 9 is integrally engaged with the inner cylinder 4 so as to be externally fitted thereto. By this separate molded body structure, a washing water jet orifice 10 and the water passage 9 can be molded into pref. shapes and the fine control of the jet shape and jet density of washing water becomes possible.

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 navel lamp of an automobile while the automobile 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 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.

In addition, in recent years, headlamps have become a part of car design, and so-called proper headlamps with different lens shapes have become mainstream in Tosei cars. Since there are many wide headlamps, this type of headlamp cleaner controls the washing water sprayed out from the headlamp cleaner into the shape of the headlamp surface by regulating the shape of the washing water spout opening in the nozzle. ing.

[Problem that the invention seeks to solve]

However, in the nozzle of the above-mentioned headlamp cleaner, the cleaning water jetting port is generally opened on the side of the water passage, and the delicate shape of the cleaning water jetting port determines the diffusion shape, but the molding of the nozzle Because molding conditions such as undercuts must be taken into account when cleaning, the shape of the jet cannot be controlled sufficiently, resulting in unwashed water, and cleaning water that scatters around the headlight without hitting the headlamp, making it difficult to clean. The problem was that the amount of water used increased and sufficient cleaning efficiency could not be obtained.

The present invention was devised in view of the above-mentioned problems, and it designs a cleaning water injection port that can control the injection shape and injection density so that the cleaning water is sprayed particularly in a diffused manner over the surface shape of an ultra-wide-angle headlamp. It is an object of the present invention to provide a nozzle for a headlamp cleaner that can perform the following steps.

[Means for solving problems]

That is, the headlamp cleaner nozzle according to the present invention has the following features:
In headlamp cleaners that spray high-pressure washing water onto automobile headlamps to restore their light emission efficiency, a nozzle that is pivotally fitted to the top of a nozzle case and that spouts out washing water is
The gist of the present invention is that the collar member that fits into the nozzle case and the nozzle member that forms the cleaning water spout are of a multi-segmented structure formed by an open molded body.

Further, in the multi-segment structure, a part of the split surface of the split molded body can be configured as one component over the nozzle member and the collar member.

[Effect]

The above-mentioned headlamp cleaner nozzle, like a single molded nozzle, 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 flushed from the cleaning water jet port. A high-speed vortex is formed near the washing water injection port in the upper washing water separated by the water cut edge due to the outflowing water flow, and this vortex causes the washing water jetted from the washing water injection port to flow out from the washing water injection port. When released and rapidly depressurized, it turns into water droplets and is ejected in a direction regulated by the shape of the water passageway that communicates with the cleaning water injection port and the core, hitting the front of the headlamp at high speed. , clean the headlamp surface. However, in the nozzle according to the present invention, the collar member that fits into the nozzle case and the nozzle member that forms the cleaning water spout are each formed by split molding, and the nozzle has a multi-segment structure, so undercuts in molding are not taken into consideration. This increases the degree of freedom in molding without having to do anything, makes it possible to mold the cleaning water injection port and passageway into a desired shape, and makes it possible to finely control the injection shape and injection density of the cleaning water. This constitutes an ultra-wide-angle spray nozzle that has particularly high cleaning effects.

〔Example〕

Embodiments of the headlamp cleaner nozzle according to the present invention will be described below with reference to the drawings.
This shows a first example.

In the drawings, reference numeral 1 denotes a collar member having a spherical fitting outer circumferential surface 2, and the inner surface of a water inlet 3 opened at the bottom constitutes a short cylindrical inner cylinder 4, and the inner cylinder 4 is connected from the top side. A concave portion 5 is formed extending to the outer peripheral portion. Reference numeral 6 denotes a nozzle member having a top wall 8 formed at the upper end of a cylindrical body 7, and the lower end of the cylindrical body 7 is fitted into the concave portion 5 of the collar member 1, and the lower end of the water passage 9 is fitted into the concave portion 5 of the collar member 1. It has a structure in which it is externally fitted onto the inner cylinder 4 and integrated. The washing water injection port 10 opened at the front surface of the top of the cylindrical body 7 gradually increases in hanging width from the front end of the top wall 8 along the side edges, and has a water cut edge 11 whose front shape is curved downward. It forms the upper edge of the cleaning water injection port 10. Further, reference numeral 12 denotes a curved edge formed at the upper end of the front half of the cylindrical body 7 in correspondence with the water cut edge 11, and the front shape is curved downward, and the curved edge 12 and the water cut edge 11 are connected at both ends. , which form a front shape connected by side edges 13, respectively. The front end of the top wall 8 constitutes a beak-like protrusion 8a with an appropriate curvature, the tip part of which is slightly retracted from the inner diameter position of the cylindrical body 7, and a side edge extending from the front end at an angle α of approximately 90 degrees. 8b, 8b form a planar shape that intersects the outer diameter of the cylindrical main body 7 at approximately 180 degrees.

The cleaning water injection nozzle constructed by fitting and integrating the collar member 1 and the nozzle member 6 includes a water passage 9, a top wall 8, and an inner cylinder 4.
A vortex forming cavity 14 surrounded by
The fitting outer circumferential surface 2 is fitted into a spherical recess 52 formed at the end of a nozzle case 51 by adjusting the fixed angle, thereby configuring a headlamp cleaner 50 that is fixed to a bumper a of an automobile or the like.

When the headlamp cleaner nozzle having the above configuration is supplied with high-pressure cleaning water at an appropriate pressure through the nozzle case 51,
Washing water is blown at a high flow rate from the water inlet 3 of the inner cylinder 4 into the vortex forming cavity 14, and the upper washing water separated by the cut edge 11 forms a high-speed vortex near the washing water injection port 10. Due to this vortex, when the cleaning water jetted from the cleaning water jetting port 10 is discharged from the cleaning water jetting port 10 and the pressure is rapidly reduced, it becomes water droplets, and due to the shape of the cleaning water jetting port 10, it becomes thin and wide. The jet is controlled to match the ultra-wide-angle headlamp surface shape, and at the same time, the spray density of droplets can be controlled to achieve uniform cleaning.

6 to 9 show a second embodiment of the present invention, in which the inner cylinder 4 of the first embodiment is constructed from another member.

That is, the collar member 1 having a spherical fitting outer circumferential surface 2 has a step hole 21 formed continuously in the recessed part 5 and penetrating through the upper and lower surfaces, and the nozzle member 6, which is separately molded, has a lower end portion for external use. It is provided with an outer crotch portion 22 that fits into the stepped hole 21. Also, 2
Reference numeral 3 denotes an inner cylinder of a separate member that fits into the lower end of the water passage 9 of the nozzle member 6, and communicates with the vortex forming cavity 14 via a water hole 24 formed in the inner cylinder 23.

Furthermore, FIGS. 10 to 13 show a third embodiment, in which the lower half of the water passage 9 is connected to the collar member 1 and the nozzle member 6.
It is composed of

That is, the collar member 1 having the spherical fitting outer circumferential surface 2 has a semi-cylindrical water passage portion 25 at a concentric position in the first half of the axial position of the recessed portion 5.
is set upright, and an inner cylinder 23, which is a separate member, is fitted into an elliptical hole 26 opening at the bottom.

On the other hand, the nozzle member 6 has a cleaning water injection port 10 opened at the upper end of the cylindrical body 7, and a semi-cylindrical part corresponding to the semi-cylindrical water passage part 25 in the first half of the lower half of the cylindrical body 7. The lower end of the cylindrical main body 7 is fitted into the concave portion 5 and integrated with the semi-cylindrical water passage portion 27.
5 and the semi-cylindrical notch 27, and the water inlet 2 of the inner cylinder 23
4 is formed.

Therefore, since the nozzle according to the present invention has a structure in which the collar member 1 and the inner cylinder 23 are molded as separate members from the nozzle member 6, the cleaning water jetting port 10 and the through hole, which affect the jetting shape and jetting density of the cleaning water, The water channel 9 can now be designed freely, and the washing water can be delicately controlled.

〔Effect of the invention〕

Since the nozzle for a headlamp cleaner according to the present invention is configured as described above, the collar member that fits into the nozzle case and the nozzle member that forms the cleaning water spout are each formed by separate molding, and the nozzle has a multi-segmented structure. This feature increases the degree of freedom in molding, making it possible to mold the cleaning water injection port and passageway into a preferred shape. It has excellent features such as being able to be controlled and, in particular, being able to configure an ultra-wide-angle injection nozzle.

[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 water injection showing a first embodiment of the headlamp cleaner nozzle according to the present invention. A vertical cross-sectional view of the nozzle, FIG. 3 is a plan view of the same,
FIG. 4 is a front view of the nozzle member, FIG. 5 is a sectional view taken along the line V-V in FIG. 8 is a longitudinal sectional view of the nozzle member, FIG. 9 is a longitudinal sectional view of the inner cylinder, FIG. A plan view, FIG. 12 is a longitudinal sectional view of the nozzle member,
FIG. 13 is a longitudinal sectional view of the inner cylinder. 1...Collar member 3, 24...Water port 4.23.
... Inner cylinder 5 ... Concave portion 6 ... Nozzle member
7... Cylindrical body 8... Top wall 9
... Water flow channel 10 ... Cleaning water injection port 14 ... Vortex forming cavity 25 ... Semi-cylindrical water passage section 27 ... Semi-cylindrical notch Patent distributor Koito Seisakusho Co., Ltd. Agent Patent Attorney Front 1) Japanese Male Figure 2 Figure 4 Figure 5 Figure 6 Figure 6... Nozzle member 7... Cylindrical body 8... Top wall 9... Water passage Figure 8 Figure 9 Fig. 10 6... Nozzle member Fig. 12

Claims (1)

[Claims] In headlamp cleaners that spray high-pressure washing water onto automobile headlamps to restore their light emission efficiency, a nozzle that is pivotally fitted to the top of a nozzle case and that spouts out washing water is
A nozzle for a headlamp cleaner, characterized in that it has a multi-segmented structure in which a collar member that fits into the nozzle case and a nozzle member that forms a cleaning water spout are separately molded.