JPH0110802Y2 - - Google Patents

Description

[Detailed description of the invention] <Industrial application field> The present invention relates to a front lens for an automotive lamp, and more specifically, a lens body installed in front of a lamp chamber of a lamp and a dummy installed outside the lamp chamber. This invention relates to an improvement of a front lens formed into the same body as a lens.

<Prior art> A conventional front lens of this type has the following structure, as shown in FIG.
In order to create a sense of identity between the lens body 1 and the dummy lens 3 when the front lens is viewed from the front when the light is not lit, a fisheye step 1a similar to the fisheye step 1a is formed on the inner surface of the lens body 1 on the inner surface of the dummy lens 3. Eye step 6 was formed. Therefore, when rainwater enters the inner surface of the dummy lens, water droplets tend to adhere and stay in each valley of the fisheye step 6, and when the light is off, the water droplets disturb the step pattern of the fisheye step and impair the overall appearance of the front lens. The problem was that when the light was turned on, the water droplets produced a light that was confusing for driving safety, and the water droplets that had accumulated in the valleys of the fisheye step did not disappear easily.

Therefore, it was considered to solve the above problem by painting the inner surface of the fisheye step of the dummy lens, but painting not only loses the sense of identity between the lens body and the dummy lens, but also increases the number of man-hours and costs. become.

<Problems to be solved by the invention> The present invention was made in view of the conventional problems described above.The dummy lens has the same appearance as the lens body, and furthermore, it is difficult to prevent rainwater from penetrating into the inner surface of the dummy lens. To provide a front lens of an automobile lamp at a low cost, in which water droplets do not adhere and remain on the inner surface of a dummy lens and quickly disappear even when water drops are removed.

<Means for solving the problem> The front lens of the automotive lamp of the present invention that achieves the above object consists of a lens body installed in front of the lamp chamber of the lamp body and a dummy lens installed outside the lamp chamber. They are formed into the same body with a bulkhead/mounting wall in between, and
The dummy lens is formed to extend around the vehicle body side so that its tip has an appropriate gap between it and the vehicle body, and the inner surface of the dummy lens has the same pitch as the fisheye step formed on the inner surface of the lens body. The feature is that semi-cylindrical dummy steps are formed in the vertical direction.

<Example> Hereinafter, an example of implementing the present invention will be described based on the drawings.

The front lens A is made of glass or resin,
A lens body 1 installed in front of the light chamber 2 of the light body B,
A dummy lens 3 is installed outside the lamp chamber 2, and a dummy lens 3 is formed protruding between the lens body 1 and the dummy lens 3, and is installed in a seal groove 8 of the lamp body B in an airtight manner via a packing or a sealant 9. It is constructed by forming a partition wall/mounting wall 4 into the same body.

The lens body 1 has a fisheye step 1a on its inner surface as in the past so that the required light distribution as a lamp can be obtained.
It is installed in front of the lamp chamber 2 of the lamp body B. Then, a partition wall/mounting wall 4 is formed protrudingly in a surrounding shape on the outer peripheral edge of the lens body 1, and
A dummy lens 3 is extended and formed at an outer horizontal position with a partition wall/mounting wall 4 in between.

The dummy lens 3 is formed to wrap around toward the vehicle body C side, and is formed so that its tip 3a has a gap 10 with an appropriate distance between it and the vehicle body C, and has no light distribution performance on its inner surface. A dummy step 7 is formed. The gap 10 is provided to allow wind to enter the inner surface of the dummy lens 3 when the vehicle is running.

The dummy step 7 is formed into a semi-cylindrical shape with the same pitch as the fisheye step 1a formed on the inner surface of the lens body 1, and is continuous in the vertical direction, that is, in the vertical direction when the front lens A is installed on the lamp body B. They are formed in parallel like this.

<Effects of the invention> Since the front lens of the automotive lamp of the invention is constructed in this manner, when viewed from the front when the lamp is not lit, the dummy lens and the lens body appear to be the same body, providing an excellent appearance. . In other words, semi-cylindrical dummy steps of the same pitch as the fisheye steps formed on the inner surface of the lens body are formed vertically on the inner surface of the dummy lens, so that when the front lens is viewed from the front when the light is not lit, the lens body The step lines of the dummy lens and the step lines of the dummy lens appear to be at the same pitch.
Therefore, the lens body and the dummy lens have the same appearance, and the appearance of the front lens can be improved.

Moreover, even if rainwater were to enter the inner surface of the dummy lens, the semi-cylindrical dummy steps are formed vertically on the inner surface of the dummy lens, so the rainwater would quickly flow down along the dummy steps. , since water droplets do not remain stuck on the inner surface of the dummy step forever, and in addition, there is a gap between the tip of the dummy lens and the vehicle body to allow wind to enter the inner surface of the dummy lens when driving. The water droplets adhering to the inner surface of the dummy lens are blown away and dried by the action of the introduced wind, so that the water droplets do not remain stuck on the inner surface of the dummy lens forever and disappear quickly.

In addition, the dummy step formed on the inner surface of the dummy lens does not affect the light distribution performance of the front lens, so it is easy to design and manufacture. There is no need to paint the inner surface of the lens,
Cost reduction can be expected.

Therefore, the intended purpose can be achieved.

[Brief explanation of the drawing]

FIG. 1 is a front perspective view showing an example of the implementation of the present invention;
Fig. 2 is a cross-sectional plan view of an automobile lamp constructed by installing a front lens according to the present invention on a lamp body, and is attached to a vehicle body, and Fig. 3 is an inner side showing a part of the front lens according to the present invention. A perspective view, FIG. 4 is a perspective view showing a conventional example. In the figure, A is the front lens, B is the lamp body, C is the vehicle body,
1 is a lens body, 1a is a fisheye step, 2 is a lamp chamber,
3 is a dummy lens, 3a is its tip, 4 is a mounting wall that also serves as a bulkhead, 7 is a dummy step, 10 is a gap,
It is.

Claims (1)

[Scope of utility model registration request] A lens body installed in the front of the light chamber of the light body and a dummy lens installed outside the light chamber are formed into the same body with a bulkhead/mounting wall in between, and the tip of the dummy lens is connected to the vehicle body. A semi-cylindrical dummy step of the same pitch as the fisheye step formed on the inner surface of the lens body is vertically formed on the inner surface of the dummy lens. A front lens of an automotive lamp characterized by a formed.