JP5246930B2 - Turn lamp for door mirror - Google Patents

Description

The present invention belongs to the technical field of turn lamps for door mirrors provided in vehicles.

  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 in the long light guide or the alignment between the light emitting diode and the turn lamp is shifted, the attenuation of light at the other end in the long direction becomes more remarkable, which is necessary. There is a problem that the 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 of the door mirror to be incorporated into the vehicle, the turn The lamp is configured such that an inner lens is provided along the outer lens between the outer housing and the outer lens, and the inner lens is irradiated by a light source unit provided between the inner lens and the outer housing. The inner lens has a light diffusing portion and a lens base portion, and half mirror deposition is performed on the front surface of the lens base portion, and a light guide that guides the light in a long shape is formed on the front surface of the half mirror deposition portion. This is a turn lamp for a door mirror that is arranged .

By setting it as invention of Claim 1, it can be set as the turn lamp for door mirrors which satisfy a legal requirement and was excellent also in the design property.

Next, a first reference example of the present invention will be described with reference to FIGS.
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 the present invention is applied to a portion extending from the middle in the left-right direction of the middle portion in the up-and-down direction to the outer side in the left-right direction. Tanran-flops 2, which is has been incorporated in an integrated manner.

The left and right door mirrors 1 are provided on the left and right door bodies of the vehicle, but here, as shown in FIG. 1, the door mirror is provided on the left side (passenger seat side in the right-hand drive vehicle) from the viewpoint inside the vehicle. 1 will be described, and the description of the right side door mirror 1 will be omitted.
The turn lamp 2 incorporated in the door mirror 1 is set so as to be incorporated as one assembly part in the portion of the front bulge portion of the body 1a. As shown in FIG. 2, the turn lamp 2 includes an outer housing 3 housed inside the body 1a and an outer lens 4 that covers the front portion of the outer housing 3 and is exposed to the outside together with the outer peripheral surface of the body 1a. The inner lens 5 is provided along the outer lens 4 between the outer housing 3 and the outer lens 4, and the inner housing 6 is provided on the outer housing 3 side of the inner lens 5. A light source unit 7 is provided between the housing 6 and the outer housing 3.

  The outer housing 3 is integrally formed of a non-transparent member (non-translucent resin material), is elongate in the left-right direction so as to be installed in the middle portion in the vertical direction of the door mirror body 1a, and The left end portion that is outward in the left-right direction has a curved shape that bulges forward by bending in an R shape toward the rear, and includes a bottom piece 3a formed in an acute triangle shape with the right end portion as a vertex. ing. Further, a side piece 3b extending forward from the outer peripheral edge of the bottom piece 3a is formed, whereby the outer housing 3 is formed with a recess 3c that opens from the front part to the left part. Yes.

  The outer lens 4 is integrally formed of a transparent member (translucent resin material), has an elongated shape in the left-right direction that covers the front of the outer housing 3, has a curved shape that bulges forward, and has a right end portion. It is formed with a cover piece 4a formed in an acute triangle shape with a vertex. The outer lens 4 extends in the vertical direction from the side piece portion 4b extending rearward from the outer peripheral edge portion of the cover piece 4a, and from the upper and lower edges of the side piece portion 4b. The cover piece 4a and the side piece part 4b form a recess 4d that opens from the rear part to the left part. Thus, in a state where the outer lens 4 and the outer housing 3 are integrated by abutting the side pieces 3b and 4b, the recesses 3a and 4a face each other between the bottom piece 3a and the cover piece 4a. A hollow portion is formed.

  The inner lens 5 is provided in a hollow portion formed between the outer housing 3 and the outer lens 4, but is disposed so as to be laminated behind the outer lens 4. Similar to the shape of the outer lens cover piece 4a, the inner lens 5 is a lens base that is elongated in the left-right direction, has a curved shape that bulges forward, and has an acute triangular shape with the right end as a vertex. The lens base portion 5a is provided with a pair of upper and lower light guide pipes (mainly) along the left and right lateral zones of the upper and lower edges of the lens base portion 5a. 5b and 5c (corresponding to the light guide of the invention) are provided in a fixed state. Furthermore, the lens base portion 5a extends rightward from the left end portion (outward in the left-right direction of the door mirror 1), and the right end portion is a top portion in a state where the lens base portion 5a is positioned in the middle portion in the vertical direction of the light guide pipes 5b and 5c. A sharp-angled triangular light diffusing portion 5d is provided, and the left end portion of the light diffusing portion 5d is located at the left and right outer ends of the door mirror 1, and a portion that requires illuminance that satisfies legal requirements. Is set to correspond to

The lens base portion 5a is formed as a smooth lens integrally molded with a transparent member (translucent resin material).
Further, the pair of upper and lower light guide pipes 5b and 5c are formed in a long solid shape and a circular cross section (columnar shape) by a transparent member (translucent resin material), respectively. These light guide pipes 5b and 5c are arranged in a non-parallel positional relationship, and are right-angled portions of the light-guide pipes 5b and 5c, and have an acute triangular shape on the right end side of the lens base portion 5a. The part facing the top part is integrally connected by the connecting part 5e to form a V-shape that expands toward the left end side. And as will be described later, the pair of upper and lower light guide pipes 5b and 5c are configured to emit a long light by allowing the light source to enter the connecting portion 5e as a light input portion. These light guide pipes 5b and 5c are provided with a wobbling process on the rear surface (surface on the outer housing 3 side) so as to prevent light incident on the light guide pipes 5b and 5c from leaking. It is configured. Here, in the present embodiment, the lens base portion 5a and the light guide pipes 5b and 5c are individually formed, and the formed lens base portion 5a and the light guide pipes 5b and 5c are integrally fixed. Thus, the inner lens 5 is configured.
Further, the light diffusing portion 5d is integrally formed when the lens base portion 5a formed of a transparent member is molded, is thicker than the lens base portion 5a, and is provided with light diffusing means. It is comprised by. Here, as the light diffusing means, any structure capable of diffusing light, such as forming a convex lens, or making the front surface non-smooth (for example, frosted glass, lens cut, etc.) It may be the method. And it is comprised so that the diffused light may be radiated | emitted by making a light source enter into the light-diffusion part 5d.

An inner housing 6 provided behind the inner lens 5 is disposed along the outer housing 3 and is elongated in the left-right direction and bulges forward by a non-transparent member (non-translucent resin material). It is formed in a curved shape. Further, the right end portion of the inner housing 6 that is opposed to the connecting portion 5e of the light guide pipes 5b and 5c on the right end side of the inner lens 5 is cut out.
On the other hand, a light source unit 7 is provided in a laterally long space formed between the inner housing 6 and the outer housing 3, and the light source unit 7 is provided with a support means (not shown) provided on the rear surface of the inner housing 6. It is configured to be supported on the inner housing 6 (for example, a locking body such as a locking claw). The light source unit 7 includes a first light source 7a for entering the lens base portion 5a of the inner lens 5, a second light source 7b for entering the connection portion 5e of the light guide pipes 5b and 5c, and light diffusion. The third and fourth light sources 7c and 7d having different irradiation directions so as to enter the part 5d and various electronic components necessary for supplying power to the first to fourth light sources 7a, 7b, 7c and 7d are provided. The board 7e and the bus bar 7f that electrically connects the board 7e and the first to fourth light sources 7a, 7b, 7c, and 7d are configured as a unit in a long shape. The first to fourth light sources 7a, 7b, 7c, and 7d are each composed of a light emitting diode.

The first light source 7a of the light source unit 7 enters the lens base portion 5a of the inner lens 5 from the rear through a first through hole 6b formed in the first inclined surface 6a formed at the right end portion of the inner housing 6. The second light source 7b is configured to enter the connecting portion 5e of the inner lens 5 from the right side from a notched portion of the right end portion of the inner housing 6. Further, the third and fourth light sources 7c and 7d of the light source unit 7 are respectively formed on the second and third inclined surfaces 6c and 6d having different inclination directions by being formed in a mountain shape at the left end portion of the inner housing 6. The light diffusing part 5d is configured to enter the light diffusing part 5d through the second and third through holes 6e and 6f, so that the light diffusing part 5d has the third light source 7c in the right direction for the right side part. The fourth light source 7d is configured to enter the left direction with respect to the left side portion. With this configuration, the inner lens 5 emits (emits light) from the right side portion of the base lens portion 5a, the entire length of the upper and lower light guide pipes 5b and 5c that are long in the left-right direction, and the entire light diffusion portion 5d. Thus, the light is emitted from the left and right direction of the turn lamp 2 so that the turn lamp 2 can be seen from both the front side and the outside in the left and right direction, and the design can be improved. Has been.
At this time, in a state where the first to fourth light sources 7a, 7b, 7c, and 7d are not lit, the transparent outer lens 4 and the inner lens 5 are transparently transmitted through the transparent lens base portion 5a, that is, the light source unit. However, in this case, since the inner housing 6 is provided in front of the light source unit 7 (on the outer lens 4 side), it can be seen through the transparent portion. The inner housing 6 is made of a non-transparent member, and the light source unit 7 is not exposed from the outside, so that it is possible to prevent problems such as poor design.
Reference numeral 7g denotes an external terminal connected to the substrate 7e, and is configured to be pulled out of the outer housing 3 through a through hole 3d formed in the side piece 3b of the outer housing 3.

In the first reference example configured as described above, the turn lamp 2 includes an inner lens 5 having a lens base portion 5a, a pair of upper and lower light guide pipes 5b and 5c, and a light diffusion portion 5d. 5a, a pair of upper and lower light guide pipes 5b and 5c, and a light diffusing portion 5d are irradiated by the first to fourth light sources 7a, 7b, 7c and 7d of the light source unit 7 supported by the inner housing 6, respectively. Therefore, the turn lamp 2 emits light in the laterally long shape by the second light source 7b and light from the lens base portion 5a based on the first light source 7a inwardly in the lateral direction of the vehicle. It is emitted toward the front and has a good design. Furthermore, about the outside in the left-right direction of the vehicle where illuminance based on legal requirements is required, light is emitted in a diffused state from the light diffusing unit 5d irradiated by the third and fourth light sources 7c, 7d, Legal requirements are surely satisfied, whereby the turn lamp 2 that satisfies both design and functionality can be obtained. Moreover, in the course of long-term use, light emitted from the pair of upper and lower light guide pipes 5b and 5c irradiated from the inner side in the left-right direction by the second light source 7b may be attenuated outward in the left-right direction. Even so, the light emission from the light diffusing portion 5d provided on the outer side in the left-right direction does not cause a situation where the legal requirements are insufficient, and the functionality and design are maintained for a long time. The turn lamp 2 can be used.

  Further, in this structure, since the inner housing 6 made of a non-transparent member is provided between the inner lens 5 and the light source unit 7, the outer lens 4 which is a transparent member when the turn lamp 2 is turned off. The light source unit 7 is not exposed through the lens base portion 5a of the inner lens 5, and the design can be further improved.

  In addition, since the inner lens 5 is provided with a pair of upper and lower light guide pipes 5b and 5c, a plurality of long light beams extending in the left-right direction of the turn lamp 2 are emitted. In addition to excellent performance, the visibility of the turn lamp 2 can be further improved.

  In this case, the pair of upper and lower light guide pipes 5b and 5c are arranged in a non-parallel relationship. In particular, in the present embodiment, a connecting portion 5e is formed at the right end portion to form a V-shape. It has become. As a result, not only is the design superior, but also the pair of upper and lower light guide pipes 5b and 5c is irradiated with one second light source 7b from the right end side by irradiating the connecting portion 5e of the upper and lower light guide pipes 5b and 5c. Both 5c can be emitted, the number of parts can be reduced, and the cost can be reduced.

Further, in the first reference example , the inner lens 5 includes a lens base portion 5a and a light diffusing portion 5d which are integrally formed, and a pair of upper and lower light guide pipes 5b and 5c are integrally formed. Since the structure is fixed, the design of the inner lens 5 can be diversified, and the design can be further improved.

In the inner lens of the first reference example , the transparent lens base portion may be subjected to half mirror vapor deposition, and in this way, the light source exposed from the inner housing when the light is extinguished can also be seen. Thus, the design is further improved, and the half-mirror vapor-deposited portion functions as a reflecting surface when the lamp is turned on, and the turn lamp can be emitted with higher visibility. Further, a pair of light guides may be provided individually.

The present invention can be implemented as in the embodiment shown in FIG.
Turn lamp 8 of the present implementation includes outer housing 9, the outer lens 10, inner lens 11, and a light source unit 12, that no inner housing is provided, the upper and lower pair and the light diffusion portion 11a of the inner lens 11 The basic configuration is the same as that of the first reference example except that half mirror deposition R is applied to the front surface of the lens base portion 11d formed between the light guide pipes 11b and 11c. It has become. By configuring in this way, there is an advantage that the light source unit is not exposed from the outside when the lamp is turned off, the design can be improved, and the number of parts can be reduced because the inner housing is not provided.

Further, in the turn lamp 12 of the second reference example shown in FIG. 3B, the inner lens 13 is integrally formed including a pair of upper and lower light guide pipes 13a, and is supported by the inner housing 14. The configuration is the same as that of the first embodiment except that the half mirror vapor deposition R is applied between the upper and lower light guide pipes 13a of the inner lens 13. . In this case, the number of parts can be reduced and the configuration can be simplified.

1A and 1B are a front view and a side view, respectively, of a door mirror of a first reference example . It is a disassembled perspective view of the turn lamp of a 1st reference example . 3A and 3B are cross-sectional views of a turn lamp for a door mirror according to an embodiment of the present invention and a second reference example , respectively.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Door mirror 2 Turn lamp 3 Outer housing 4 Outer lens 5 Inner lens 5a Lens base part 5b Upper light guide pipe 5d Light diffusion part 5e Connection part 6 Inner housing 6b First through-hole 7 Light source unit 7a First light source 7e Substrate

Claims (1)

A turn lamp for a door mirror incorporated in a vehicle, wherein the turn lamp is provided between an outer housing and an outer lens, an inner lens is provided along the outer lens, and the inner lens is connected to the inner lens and the outer housing. The inner lens is configured to irradiate with a light source unit provided therebetween, and the inner lens is formed with a light diffusing portion and a lens base portion, and half mirror deposition is performed on the front surface of the lens base portion. A turn lamp for a door mirror having a structure in which a light guide for guiding light in a long shape is arranged on the front surface of the unit .

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