JPH0244411Y2 - - Google Patents

Description

[Detailed Description of the Invention] The vehicle lamp of the present invention will be explained according to the following items.

A. Industrial field of application B. Overview of the invention C. Prior art [Figure 5] D. Problem that the invention attempts to solve E. Means for solving the problem F. Example a. Lamp body b. Outer lens c. Lens cover d. Inner Lens, filter e Effect G Effect of the invention (A Field of industrial application) The present invention relates to a novel vehicular lamp. Specifically, it is a vehicle lamp that covers an outer lens with the front surface of an inner lens that has a protrusion formed on the front surface and a reflective surface formed on a part of the protrusion, and that does not receive strong external light from directly above or horizontally. To provide a new vehicular lamp which does not give dazzling light to external objects even when the vehicle is exposed to sunlight, and which does not cause damage to the protrusions during assembly.

(B Summary of the invention) The vehicle lamp of the present invention has a protrusion formed on the front surface, and a portion of the protrusion serves as a reflective surface. Covered with a lens cover with a large protrusion,
As a result, the lens cover blocks external light from directly above, and prevents external light coming from the horizontal direction to the periphery of the inner lens from hitting the front surface of the inner lens, allowing the inner lens to block external light. This prevents glare from being reflected and dazzling external objects, and furthermore, since the lens cover protrudes forward from the protrusions, it prevents other objects such as the outer lens from being exposed to the inner lens during assembly. It is possible to prevent damage to the protrusion due to collision with the protrusion.

(C Prior Art) [Figure 5] For the purpose of preventing so-called false lighting, a protrusion is formed on the front surface of the inner lens, and a reflective surface is formed on a part of the protrusion to prevent light from the light source. There is a vehicle lamp that emits light forward by reflecting it on a reflective surface formed on the protrusion, and usually the front of the inner lens is covered with an outer lens in order to protect the reflective surface. .

Figure 5 shows an example of such a conventional vehicle lamp.
This shows that.

Reference numeral b designates a lamp body, which is open at the front and has a light bulb c attached to the center of the rear.

d is an inner lens arranged to cover the front opening of the lamp body b, and the front surface thereof is formed with a number of protrusions e, e, ... extending in the horizontal direction and having a triangular cross-sectional shape. . Then, one surface f, f,... forming the protrusions e, e,...
is a reflective surface, and the other surfaces g, g, . . . are transmissive surfaces.

h is an outer lens placed on the front side of the inner lens d.

However, in the case of the above vehicle lamp a, the light bulb c
The light from the inner lens d is reflected by the reflecting surfaces f, f, ... of the protrusions e, e, ... formed on the inner lens d, and passes through the transmitting surfaces g, g, ... to the adjacent reflecting surfaces f, f, ... The light is incident on the reflecting surfaces f, f, . . . and is emitted toward the front of the lamp.

(Problem that the D idea aims to solve) However, the conventional vehicle lights as mentioned above a.
However, there is a problem in that when there is strong external light, it becomes a dazzling light to others.

For example, when the sun is almost directly overhead, the light i passes through the side part j of the outer lens h and hits the reflective surfaces f, f, ... formed on the protrusions e, e, ... of the inner lens d. As a result, the light is reflected and irradiated approximately in front of the lamp. Also, when the sun is at a very low position, such as when the sun is twilight, the light k passes through the outer lens h and enters the inside, and is reflected by the flat part l formed on the front edge of the inner lens d. This also irradiates the front of the lamp.

When the vehicle lamp is used, for example, as a rear signal light of an automobile, the lights i and k dazzle the driver of a following vehicle, resulting in a significant impediment to traffic safety.

In addition, after the lamp is assembled, the front surface of the inner lens d is protected by the outer lens h, but before assembly, there is a protruding portion on the front surface of the inner lens d. ,
Since the protrusions e, e, ... are formed, there is a high risk that external objects will collide with them, and during assembly, the protrusions e, e, ..., especially their reflective surfaces f,
There is a problem that f, . . . are easily damaged.

(E Means for Solving Problems) In order to solve the above-mentioned problems, the vehicle lamp of the present invention has an inner lens in which a protrusion is formed on the front surface and a reflective surface is formed on a part of the protrusion. A lens cover is provided on the peripheral edge of the lens cover to cover the lens cover, and the amount of forward protrusion of the lens cover is made larger than that of the protrusion.

Therefore, according to the vehicle lamp of the present invention, the light coming from almost directly above through the outer lens is blocked by the lens cover and cannot enter any further inside. Since the periphery of the inner lens is covered with a lens cover, light coming from a low position is not reflected forward by the periphery of the inner lens. The light is not emitted forward, and does not dazzle other objects.

Furthermore, since the amount of forward protrusion of the lens cover is larger than that of the protrusion, objects moving toward the protrusion from the outside of the inner lens are blocked by the lens cover. It is possible to reduce the chance that the protrusion is damaged.

(F. Example) Below, details of the vehicle lamp of the present invention will be described according to Example 1 illustrated.

(a Lamp Body) 2 is a lamp body, which is made of synthetic resin. The front of lamp body 2 is open,
A substantially parabolic reflecting surface 3 is formed on the inner surface. A mounting hole 4 is formed in the rear central portion of the lamp body 2, a socket 5 is removably mounted in the mounting hole 4, and a light bulb 6 is removably mounted in the socket 5. The filament 7 of the light bulb 6 is located approximately at the focal point of the reflecting surface 3.

A receiving edge 8 that projects outward is integrally formed on the opening edge of the lamp body 2, and receiving grooves 9 and 10 that open toward the front are formed in the receiving edge 8. .

(b Outer Lens) Reference numeral 11 denotes an outer lens, which is made of a colorless transparent or smoke-colored synthetic resin.

The outer lens 11 has a front part 12 and a front part 1.
and a side portion 13 extending rearward from the peripheral edge of the lamp body 2.
It is fitted into an outer receiving groove 10 formed in the receiving edge 8 of the lamp body 2 and fixed to the lamp body 2 with an adhesive 14.

(c Lens Cover) 15 is a lens cover, which is made of a non-reflective colored synthetic resin. The lens cover 15 has an annular shape extending substantially along the opening edge of the lamp body 2 when viewed from the front.
In addition, the cross section is shaped like a rectangular channel with an opening at the rear. That is, the inner side part 16 and the outer side part 17 are spaced apart from each other inside and outside and are opposed to each other in substantially parallel manner.
and a front part 18 connecting these front ends are integrally formed.

The rear end of the outer edge 17 of the lens cover 15 is fitted into the inner receiving groove 9 provided in the receiving edge 8 of the lamp body 2, and is attached to the lamp body 2 by the adhesive 14. Fixed.

(d Inner lens, filter) 19 is an inner lens. The inner lens 19 is made of transparent synthetic resin. A projecting wall 20 is formed from the peripheral edge of the inner lens 19 and projects forward.

21, 21, ... are protrusions formed on the front surface of the inner lens 19, extending in the horizontal direction,
It has a triangular cross-sectional shape. Of the two surfaces constituting the protrusions 21, 21, . . ., one 21a, 21a, . . . is a reflective surface, and the other 21b, 21b, . The reflective surfaces 21a, 21a, . . . are formed by, for example, vacuum-depositing aluminum on these surfaces.

On the front surface of the inner lens 19, a flat portion 22 extending in a band shape is formed between the region where the protrusions 21, 21, . . . are formed and the protruding wall 20. Also,
This plane part 22 has several insertion holes 23, 23,
...is being formed.

24, 24, . . . are cylindrical lens elements formed to extend horizontally on the rear surface of the inner lens 19, and are formed corresponding to the protrusions 21, 21, . The parallel light incident on... is the protrusion 21,
The light is focused on the reflective surfaces 21a, 21a, . . .

Reference numeral 25 denotes a filter disposed inside the inner lens 19, that is, on the side of the light bulb 6, which colors the transmitted light in an appropriate color, for example, red or amber, and also colors the transmitted light in order to obtain a desired light distribution. Appropriate lens elements for control are formed.

A projecting wall 26 projecting forward is integrally formed on the peripheral edge of the filter 25.

Also, several boss seats 27, 27, . . . are formed along the inner surface of the projecting wall 26, and insertion holes 28, 28, . is formed. These insertion holes 28, 28, . . . are formed so as to coincide with the insertion holes 23, 23, . .

Thus, the filter 25 is superimposed on the rear surface of the inner lens 19 so that its protruding wall 26 abuts against the peripheral edge of the rear surface of the inner lens 19, and in this state, the mounting screws 29, 29, . . .
5 and the insertion holes 23, 23, . . . formed in the inner lens 19.
after being inserted into the inner side 16 of the lens cover 15.
The inner lens 19 and filter 25 are supported by the lamp body 2 via the lens cover 15. At this time, the rear end surface of the inner side part 16 of the lens cover 15 is brought into contact with the flat part 22 of the inner lens 19, and the length of the inner side part 16 of the lens cover 15 in the front-rear direction is the protrusion of the inner lens 19. The protrusion amount is considerably larger than that of 21, 21, .

(e Effect) Therefore, in the case of the above-mentioned vehicle light 1,
Of the light emitted from the filament 7 of the light bulb 6, the light directed toward the reflective surface 3 is reflected by the reflective surface 3 and becomes light substantially parallel to the optical axis x--x. After passing through the filter 25, the light enters the rear surface of the inner lens 19, and enters the cylindrical lens elements 24, 2.
4, the reflective surface 21 of the protrusions 21, 21,...
a, 21a,... Then, it is reflected by the inner surface of these reflecting surfaces 21a, 21a,... and passes through the transmitting surfaces 21b, 21b,... and then the reflecting surfaces 21a, 21 of the adjacent protrusions 21, 21,...
The light is reflected by the outer surfaces of a, .

When outside light 30 comes from almost directly above, for example, sunlight near noon, the light 30 passes through the outer lens 11 and enters the lamp 1, but is blocked by the lens cover 15. To prevent this, the protrusion 21 provided on the front surface of the inner lens 19,
The light cannot reach the reflective surfaces 21a, 21a, . . . and does not cause dazzling light.

In addition, when external light 31 from a low position hits, for example, strong western sunlight at dusk, since the flat part 22 at the peripheral edge of the front surface of the inner lens 19 is covered by the lens cover 15, The light 31 is not reflected by the flat portion 22 and does not become dazzling light.

(G Effect of the invention) As is clear from the above description, the vehicle lamp of the present invention has a protrusion formed on the front surface and a reflective surface formed on a part of the protrusion. The vehicular lamp covered with a lens is characterized in that a lens cover is provided to cover the peripheral edge of the front surface of the inner lens, and the amount of forward protrusion of the lens cover is larger than the amount of protrusion of the protrusion.

Therefore, according to the vehicle lamp of the present invention, the light coming from almost directly above through the outer lens is blocked by the lens cover and cannot enter any further inside. Since the periphery of the inner lens is covered with a lens cover, light coming from a low position is not reflected forward by the periphery of the inner lens. The light is not emitted forward, and does not dazzle other objects.

Furthermore, since the amount of forward protrusion of the lens cover is larger than that of the protrusion, objects moving toward the protrusion from the outside of the inner lens are blocked by the lens cover. It is possible to reduce the chance that the protrusions are damaged.

[Brief explanation of the drawing]

1 to 4 show an example of the implementation of the vehicle lamp of the present invention, in which FIG. 1 is a front view, FIG. 2 is a front view with the outer lens removed, and FIG.
FIG. 4 is an enlarged sectional view taken along the line - in FIG. 1, and FIG. 5 is a longitudinal sectional view showing an example of a conventional vehicle lamp. Explanation of symbols: 1...vehicle lamp, 11...outer lens, 15...lens cover, 19...inner lens, 21...projection, 21a...reflective surface.

Claims (1)

[Scope of Claim for Utility Model Registration] A vehicular lamp comprising an outer lens covering the front surface of an inner lens having a protrusion formed on the front surface and a reflective surface formed on a part of the protrusion, A vehicular lamp characterized in that a lens cover is provided to cover a peripheral portion, and the amount of forward protrusion of the lens cover is larger than the amount of protrusion of the protrusion.