JP5116430B2 - Turn lamp for vehicle - Google Patents

Description

The present invention belongs to the technical field of vehicle turn lamps provided in vehicles such as automobiles.

  Generally, in this type of vehicle lamp, there is a door mirror provided on the door of the vehicle (vehicle body), and a turn lamp (direction indicator) is integrally attached to the door mirror, together with a turn lamp provided independently on the front and rear of the vehicle. It is known that it is made more appealing to the people around it by lighting it. Among these, it is proposed that the turn lamp is configured to be lit using a light emitting diode.

In what constitutes a turn lamp using the light emitting diode, the door mirror is provided with a long solid light guide (optical fiber) and a light source that irradiates one end in the longitudinal direction of the light guide, It has been proposed that light is emitted from the entire length of the light guide by turning on the light source to enhance the design of the door mirror and the visibility of the turn lamp.
JP 2000-103287 A

  By the way, in the above-mentioned conventional one, the other end in the longitudinal direction of the light guide is located outward in the lateral direction of the vehicle body, and the illuminance at the laterally outward position of the vehicle body satisfies the legal standard as a turn lamp. Illuminance is required. On the other hand, since the light emitting diode is configured to irradiate one end in the longitudinal direction of the light guide, light attenuation is assumed at the other end in the longitudinal direction. In this case, if light leakage occurs at the one end in the longitudinal direction, which is the light source arrangement side, or if the alignment between the light emitting diode and the turn lamp is shifted, the attenuation of light at the other end in the longitudinal direction becomes more remarkable. Therefore, there is a problem that the necessary illuminance cannot be secured and the function as a turn lamp may not be achieved, and there is a problem to be solved by the present invention.

The present invention, which was created for the purpose of solving these problems in view of the such circumstances above, the invention of claim 1, a turn signal lamp incorporated in the vehicle door mirror body, the turn A base housing that is housed inside the body, an inner housing that is incorporated in the front side of the base housing, and an outer lens that covers a front portion of the inner housing and is exposed to the outside along with the outer peripheral surface of the body. The inner housing is configured by integrating a long solid light guide member and an inner member in the left-right direction, and the inner member includes a pair of upper and lower flange pieces, A groove-shaped integrated piece that connects and integrates the flange pieces, and the flange piece extends from the vehicle left-right inner end. And a support piece portion formed so as to be positioned on the inner end side of the integrated piece portion, and the light guide member includes a hemispherical light incident portion that reaches the support piece portion, and the light incident portion. The light source is configured to include a light guide portion that extends outward in the left-right direction and is fitted and held in the integrated piece portion. It is located on the end side and is opposed, and emits light to the inner end side of the light incident portion, and a light blocking means by crease processing is provided on the light source facing portion of the outer lens and the rear surface of the light guide portion. This is a turn lamp for a vehicle.
A second aspect of the invention is the vehicle turn lamp according to the first aspect , wherein the light blocking means of the outer lens is covered with a body and cannot be seen from the outside.

According to the first aspect of the invention, there is no loss of light in the vicinity of the light source, and uniform light can be emitted without attenuation of light from one end portion to the other end portion of the light guide.
According to the invention of claim 2, the light guide can be prevented from being attenuated with a simple configuration.

Next, embodiments of the present invention will be described with reference to the drawings.
In the drawings, reference numeral 1 denotes a door mirror provided on a door of a vehicle, and an opening (not shown) is formed at a portion facing the rear (rear of the vehicle) of the body 1a constituting the door mirror 1, and the opening In addition, a rear confirmation mirror (not shown) is fitted in such a manner that its position can be adjusted. A portion facing the front of the body 1a is formed in a shape that bulges forward, and a turn lamp 2 in which the present invention is implemented is integrally incorporated in a lower portion of the bulging portion.

In addition, although the left-right symmetrical thing is provided in the left-right door body of a vehicle, the door mirror 1 demonstrates the door mirror 1 provided in the vehicle left side shown in FIG. 1, and abbreviate | omits description of the right-side door mirror 1 here. To do.
The turn lamp 2 incorporated in the door mirror 1 is set so as to be incorporated into the body 1a as one assembly part at a lower portion of the front bulge portion of the body 1a. As shown in FIG. 2, the turn lamp 2 covers a base housing (corresponding to the housing of the present invention) 3 and the inner housing 4 accommodated inside the body 1 a, and further covers a front portion of the inner housing 4. And an outer lens (corresponding to the lens of the present invention) 5 exposed to the outside together with the outer peripheral surface of the body 1a.

  The base housing 3 will be described with reference to FIG. The base housing 3 is integrally formed of a non-translucent resin material, and is formed in a curved shape that is long in the left-right direction so as to be installed in a lower part of the door mirror body 1a. The left end portion is formed in a shape that bends in an R shape toward the rear. The base housing 3 is provided with a bottom piece 3a and is formed with a recess 3b that opens from the front part toward the left part, and the recess 3b is formed by incorporating the inner housing 4 from the front of the recess 3b. It is set to be blocked. Incidentally, 3c is a connection part with an external power source, and 3d is an attachment piece for integrating with the body 1a.

On the other hand, the inner housing 4 is formed of a translucent resin material, and as shown in FIG. 4, is elongated in the left-right direction like the base housing 3, and the left end portion is folded in an R shape toward the rear. Although configured in a curved shape, the inner housing 4 of the present embodiment has a long solid shape and a circular cross section (cylindrical shape) light guide portion 6a (corresponding to the light guide member of the present invention). ) And the inner member 7 are integrated.
As shown in FIG. 5, the inner member 7 includes a pair of upper and lower flange pieces 7a and 7b and an integrated piece 7c that connects the flange pieces 7a and 7b. The integrated piece portion 7c is formed in a concave groove shape that deviates more backward than the upper and lower flange piece portions 7a and 7b, and the left end side portion is notched so as to be connected to the upper and lower flange piece portions 7a and 7b. A hollow portion 7d is formed between them. Reference numeral 7e denotes a support piece that extends from the right ends of the upper and lower flange pieces 7a and 7b and is positioned on the right end side of the integrated piece 7c. The support piece 7e will be described later. The first light emitting diode 9 disposed in the light source unit 8 is configured to be fixedly supported in a positioning manner. In addition, the inner member 7 may be subjected to, for example, a squeezing process as a whole, or a reflective film may be applied to the whole as a light blocking means, and the inner member 7 is non-transparent, preferably a non-translucent resin. When the light blocking means is provided in this way, the light source unit 8 incorporated behind the inner member 7 cannot be seen from the outer lens 5 side, and the design is improved. It is possible to prevent light leakage of the light source unit 8.

  The light guide member 6 is formed of a transparent member (translucent resin material), and as shown in FIG. 6, a hemispherical light incident portion 6b is formed at the right end in the left-right direction on the vehicle body side. A cylindrical light guide 6a is formed at a position facing the front of the vehicle body from the light entrance 6b. Further, the light guide member 6 is formed with a flat inner lens portion 6c at a left end portion bent in an R shape toward the rear. The light guide member 6 is assembled into the inner member 7 from the front, and the light guide portion 6a is fitted and held in the concave groove shape of the integrated piece portion 7c. The inner lens portion 6c is It is configured to be exposed rearward through the hollow portion 7d and to directly face the base housing 3. Further, the light guide 6a of the light guide member 6 is provided with light blocking means for preventing light leakage on the rear surface 6d which is a curved inner portion. The light blocking means here has a non-smooth surface on the rear surface. It is comprised so that light may be interrupted | blocked by giving a grain processing. Further, the inner lens portion 6c of the light guide member 6 is provided with irregular reflection means for irregularly reflecting light incident on the rear surface 6e. The irregular reflection means here forms a plurality of irregular surfaces on the rear surface. By doing so, it is configured to diffusely reflect.

The light source unit 8 is configured to be incorporated between the base housing 3 and the inner housing 4. In the present embodiment, the first, second, and third light emitting elements that serve as the light source of the turn lamp 2 are used. The diodes 9, 10, and 11 are integrated with the bus bar 12 being appropriately connected, and the integrated light source unit 8 is configured to be incorporated into the inner housing 4 in a holding state. Then, the turn lamp 2 is configured by integrating the integrated state of the inner housing 4 and the light source unit 8 as a unitized inner assembly between the base housing 3 and the outer lens unit 5. Is set to
The bus bar 12 of the light source unit 8 is formed in a curved shape, and first to third light emitting diodes 9, 10, and 11 are appropriately wired and necessary electronic components are mounted on the curved inner surface serving as a rear side surface. A substrate 13 is provided. The light emitting diodes 9, 10, 11 are all general-purpose ones, and the first light emitting diode 9 supported by the support piece 7 e of the inner member 7 is one of the light guide members 6 in the longitudinal direction. Is located on one end side (right end side) of the light incident part 6b at the end of the light-emitting element and is disposed so as to emit light toward the light incident part 6b. The second and third light emitting diodes 10 and 11 are hollow. The light guide member 6 exposed to the base housing 3 side through the portion 7d is positioned behind the inner lens portion 6c, and emits light toward the left front side and the left side through the inner lens portion 6c. It is arranged to do. As a result, the light guide member 6 is switched from the light incident part 6b to the light guide part 6a and the inner lens part 6c by the lighting of the first light emitting diode 9 arranged on the right end side (one end part of the present invention) of the light incident part 6b. The light is emitted from the front side to the left side in a state where the inner lens portion 6c is irregularly reflected by the lighting of the second and third light emitting diodes 10 and 11. Is set.
Incidentally, by making the light incident part 6b of the light guide member 6 into a hemispherical shape, light from the first light emitting diode 9 is scattered and guided toward the light guide part 6a and the inner lens part 6c. It is set so that the attenuation of light can be reduced. In the present embodiment, the second and third light emitting diodes 9 and 10 are provided at the left end, which is the laterally outward portion of the vehicle body, so that light enters the inner lens portion 6c, and light is emitted from the inner lens portion 6c. Therefore, the illuminance that satisfies the legal standard for the turn lamp 2 can be reliably radiated.

The outer lens 5 is arranged so as to cover the front of the inner housing 4, and the turn lamp 2 is configured by integrating the outer peripheral edge of the base housing 3 and the outer peripheral edge of the outer lens 5 in abutment. Yes. The outer lens 5 is integrally formed of a translucent resin material, and a first light emitting diode 9 supported by a support piece 7e formed on the inner member 7 of the inner housing 4 is arranged as shown in FIG. The light source facing portion 5a facing the provided portion is configured to be close to the first light emitting diode 9 through the step portion 5b. Furthermore, although the light blocking means is formed in the light source facing portion 5a, in this embodiment, the light blocking means is configured by squeezing the light source facing portion 5a. Incidentally, as the light blocking means, it is possible to use means such as attaching a non-light-transmitting seal or forming a non-light-transmitting film such as a reflective film.
As a result, the light emitted from the first light emitting diode 9 is not emitted to the outside via the light source facing portion 5a of the outer lens 5 (light leakage), and the light guide member 6 is efficiently irradiated. Thus, the light is prevented from being attenuated on the left end side of the light guide portion 6a, and the light is uniformly emitted over the entire left and right direction of the light guide portion 6a so that the visibility can be improved. .

  Further, the door mirror 1 of the present embodiment is configured such that when the turn lamp 2 is incorporated in the body 1a, the outer peripheral edge of the outer lens 5 and the light source facing portion 5a are covered with the body 1a. . As a result, these portions cannot be seen from the outside of the door mirror 1, the light incident portion 6 b of the light guide member 6 is reliably shielded from light, further preventing light leakage, and making surrounding people feel dazzling. Such a problem can be eliminated, and the design is improved.

In the embodiment configured as described above, the turn lamp 2 incorporated in the door mirror 1 emits light from the light guide member 6 incorporated in the inner housing 4 at the front part of the vehicle. The first light-emitting diode 9 that is incident from the light portion 6b emits light that is elongated in the left-right direction from the light guide portion 6a, and is incident on the inner lens portion 6c outside the vehicle body in the left-right direction. The third light emitting diodes 10 and 11 emit light from the inner lens portion 6c outward in the left-right direction. Thereby, the turn lamp 2 can improve the visibility from the front of the vehicle and from the outside in the left-right direction, and the turn lamp 2 is excellent in design.
Further, in this structure, the light source facing portion 5a of the outer lens 5 facing the first light emitting diode 9 is provided with a light blocking means, and the light of the first light emitting diode 9 leaks through the outer lens 5 to the outside. Therefore, the light entering the light guide member 6 is not lost, and the light is attenuated during the period from the light incident part 6b to the inner lens part 6c via the light guide part 6a. Thus, it is possible to avoid a situation where the illuminance is insufficient and to radiate uniform light from the light guide member 6 (light guide portion 6a).

  In addition, since the light blocking means formed in the light source facing portion 5a of the outer lens 5 is wrought, the configuration can be simplified.

  Furthermore, in the case where the present invention is implemented, it is incorporated into the door mirror 1 as the turn lamp 2, and in this case, the light source facing portion where the light blocking means (texture processing) of the outer lens 5 is applied. 5a is configured to be covered with the body 1a of the door mirror 1, so that the first light-emitting diode 9 is covered with the light source facing portion 5a of the outer lens 5 and the body 1a to make the surrounding people feel dazzling. In addition, light leakage of the first light emitting diode 9 is more reliably prevented, and the turn lamp 2 having excellent functionality and design can be obtained.

It is a whole perspective view of a door mirror. 2A, 2B, and 2C are a front view of a turn lamp, a sectional view taken along line XX in FIG. 2A, and a side view, respectively. 3A, 3B, and 3C are a plan view, a front view, and a side view of the base housing, respectively. 4A, 4B, 4C, and 4D are a plan view, a front view, a rear view, and a side view of the inner assembly, respectively. 5 (A), (B), (C), and (D) are a plan view, a front view, an XX cross-sectional view, and a side view, respectively, of the inner member. 6A, 6B, and 6C are a plan view, a front view, and a cross-sectional view taken along line XX in FIG. 6B, respectively. FIGS. 7A, 7B, and 7C are a plan view, a front view, and a side view of the outer lens, respectively.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Door mirror 1a Body 2 Turn lamp 3 Base housing 4 Inner housing 5 Outer lens 6 Light guide member 6a Light guide part 6c Inner lens part 7 Inner member 8 Light source unit 9 First light emitting diode 12 Bus bar 13 Substrate

Claims (2)

A turn signal lamp incorporated in the door mirror body for a vehicle covering, the turn lamp, a base housing to be accommodated inside the body, the inner housing being incorporated into the front of the base housing, the front portion of the inner housing The inner housing is formed by integrating a long, solid light guide member and an inner member in the left-right direction. The inner member extends from a pair of upper and lower flange pieces, a concave groove-like integrated piece that connects and integrates the flange pieces, and an inner end of the flange piece in the vehicle left-right direction. And a support piece formed so as to be positioned on the inner end side of the integrated piece, and the light guide member is a hemispherical shape reaching the support piece And a light guide portion that extends outward from the light entrance portion in the left-right direction and is fitted and held in the integrated piece portion. The light source is fixedly supported by the support piece portion in a positioning manner. The light incident portion is located on the inner end side in the left-right direction and is opposed to the light incident portion, and emits light toward the inner end side of the light incident portion. A vehicle turn lamp provided with light blocking means by grain processing . 2. The vehicle turn lamp according to claim 1 , wherein the light blocking means of the outer lens is configured to be covered with a body and not visible from the outside.

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