JPH0427911B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a nozzle for a headlamp cleaner, which is related to a cleaning technique for an automotive headlamp cleaner that spouts cleaning water for cleaning the headlights of an automobile while the vehicle is running. It is something.

[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 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, and when considering car design and air resistance,
In general, thin and wide headlamps are becoming more common. For this reason, the cleaning water that diffuses and jets out from the headlamp cleaner does not reach the entire headlamp surface, leaving some residue behind.However, if the entire headlamp could be rinsed away, it would scatter around the headlamp without hitting the headlamp. This causes 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-mentioned problems, and controls the jetting shape so that the jetted cleaning water is diffused in a super wide angle over the rectangular cleaning surface of the headlamp, and does not leave any residue left unwashed. It is an object of the present invention to provide a nozzle for a headlamp cleaner that uniformly cleans the entire surface of a headlamp by effectively using a limited amount of cleaning water.

[Means for solving problems]

That is, the nozzle for a headlamp cleaner according to the present invention is a headlamp cleaner for a substantially rectangular lens that sprays high-pressure washing water onto the headlamp of an automobile to clean it and recover the light emission rate. At least one pair of opposing opening edges of the cleaning water spout are each configured to have a length corresponding to the expected expansion angle of the surface to be cleaned, and the opening edge on the far throw side with respect to the surface to be cleaned is The gist is to configure the length to be shorter than the opening edge on the opposite side. Therefore, if the headlamp cleaner is installed below the headlamp, the upper edge of the cleaning water injection port should be shorter than the lower edge, and if the headlamp cleaner is installed on the side of the headlamp, the cleaning water A measure is taken in which the inner edge of the injection port is configured to be shorter than the outer edge.

[Effect]

By supplying high-pressure cleaning water at an appropriate pressure, the headlamp cleaner nozzle diffuses the cleaning water in a fan shape from the cleaning water jetting port and sprays it in the jetting direction regulated by the opening edge of the cleaning water jetting port. However, each of the opening edges is configured to have a length corresponding to the expansion angle of view of the surface to be cleaned, and the length of the opening edge on the far throw side with respect to the surface to be cleaned is shorter than that on the opposite side. Because of this structure, the cleaning water does not hit the surface to be cleaned or is sprayed outside of the surface to be cleaned, and the cleaning water is controlled to be sprayed over the entire surface of the thin and wide ultra-wide angle head lamp. It improves efficiency.

〔Example〕

Embodiments of the headlamp cleaner nozzle according to the present invention will be described below with reference to the drawings. FIGS. 1 to 4 show an embodiment of the type in which the headlamp cleaner is installed on the front bumper of the headlamp. Figure 1 is a front view of the cleaning water injection nozzle.
FIG. 2 is a longitudinal cross-sectional view of the main part, and FIG. 3 is a schematic side view showing the installed state.

In the drawings, reference numeral 1 denotes a nozzle case with a cleaning water injection nozzle 2 pivotally mounted on the top thereof, and is attached to a bumper 51 in front of a headlamp 50 having a rectangular lens surface. The nozzle 2 has a cleaning water injection port 3 that communicates with the nozzle case 1 on the surface facing the head lamp 50 on one side of the top. A substantially rectangular hole is formed by side edges 6, 6 connecting the upper edge 4 and the lower edge 5 at both ends, respectively. Here, the lengths L1 and L2 of the upper edge 4 and lower edge 5 are as shown in FIG.
The cleaning water ejected from the cleaning water injection port 3 spreads radially, and the expected expansion angles θ1 and θ2 vary depending on the cleaning level.
Therefore, the upper edge 4 that restricts the upper edge side 50a of the headlamp 50 at the far throw position from the cleaning water jet port 3 is shorter than the lower edge 5 that restricts the lower edge side 50b (L1<L2). Moreover, the side edges 6, 6 are
The upper and lower edges 4 and 5 are formed into a straight line or an arcuate curved line with an appropriate curvature connecting both ends.

Next, FIGS. 5 and 6 show an embodiment of the type in which a headlamp cleaner is installed in the nose of an automobile on the side of the headlamp.

The headlamp cleaner is a headlamp 50
The cleaning water injection port 3 that opens in the nozzle 2 has an upper edge 4 and a lower edge 5.
A substantially rectangular hole is formed by an inner edge 6a and an outer edge 6b that connect the upper edge 4 and the lower edge 5 at both ends, respectively. Here, the lengths L3 and L4 of the inner edge 6a and the outer edge 6b are determined by the lengths L3 and L4 of the inner edge 6a and the outer edge 6b, as shown in FIG.
Since the expected expansion angles θ3 and θ4 differ depending on the cleaning level, the inner edge 6a restricts the inner edge side 50c of the headlamp 50 located at the far throw position from the cleaning water jet port 3.
is shorter than the outer edge 6b that restricts the outer edge side 50d (L3<L4).

Furthermore, FIGS. 7 and 8 show that the cleaning water injection port is
The cleaning water injection ports 3a, 3b are arranged at upper edges 4, 4, lower edges 5, 5, and inner edge 6a, respectively, according to the aforementioned expansion angle. , 6a and the outer edges 6b, 6b. In this case, since each edge is regulated to an appropriate length, parallel opposing edges as in the previous embodiment are not provided. As shown in FIG. 8, the spraying pattern of cleaning water from the nozzle is such that the cleaning water is sprayed from two cleaning water jetting ports 3a and 3b onto the cleaning surface of one headlamp 50, and the cleaning water is controlled to have a rectangular shape. It is to be washed separately with water.

That is, in the present invention, the length of the opening edge constituting the cleaning water injection port is determined based on the expected expansion angle of the cleaning water jetted from the nozzle, and the length of the opening edge constituting the cleaning water injection port is determined so that the amount of cleaning water that reaches the surface to be cleaned is not too large or insufficient. This method aims to increase the cleaning efficiency by spraying the water onto the surface to be cleaned.

〔Effect of the invention〕

Since the nozzle for a headlamp cleaner according to the present invention is configured as described above, the washing water in the form of droplets is uniformly sprayed onto the surface to be cleaned, so that there is no unwashed residue even in a thin and wide headlamp. It has excellent features such as being able to improve cleaning efficiency.

[Brief explanation of drawings]

Fig. 1 is a front view of a cleaning water injection nozzle showing a first embodiment of the head lamp cleaner nozzle according to the present invention, Fig. 2 is a longitudinal sectional view of the same main part, and Fig. 3 is a side view showing the installed state. 4 is an explanatory diagram showing the principle of the same jet pattern, FIG. 5 is a front view of a cleaning water jet nozzle showing the second embodiment, and FIG. 6 is an explanatory diagram showing the principle of the same jet pattern. FIG. 7 is a front view of a cleaning water injection nozzle showing a third embodiment, and FIG. 8 is an explanatory diagram showing the same injection pattern. DESCRIPTION OF SYMBOLS 1... Nozzle case, 2... Cleaning water injection nozzle, 3, 3a, 3b... Cleaning water injection port, 4... Upper edge, 5... Lower edge, 6, 6a, 6b... Side edge, 50
...Head lamp, 51...Bumper.

Claims (1)

[Claims] 1. In a headlamp cleaner for a substantially rectangular lens that sprays high-pressure washing water onto the headlamp of an automobile to restore its light emission efficiency, at least one pair of washing water spout openings each having a substantially rectangular opening edge formed in a washing water injection nozzle are provided. The opposing opening edges are each configured to have a length corresponding to the expected expansion angle of the surface to be cleaned, and the length of the opening edge on the far throw side with respect to the surface to be cleaned is configured to be shorter than the opening edge on the opposite side. A headlamp cleaner nozzle characterized by comprising: