JP2013171814A - Vehicle lamp - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicle lamp supporting a lens with a locking structure with an excellent appearance.SOLUTION: A vehicle lamp 1 is provided with an inner lens 5 and an extension 4 for retaining the inner lens 5 from a back side. On an upper end part of the inner lens 5, there is formed a locking concave part 51 opened upward; and on the extension 4, there is formed a locking convex part 41 for locking with the locking concave part 51 of the inner lens 5.

Description

  The present invention relates to a vehicular lamp.

  Conventionally, a vehicle lamp mounted on a vehicle includes various lenses for controlling light distribution of light emitted from a light source. Such a lens is generally held by a holding member (for example, a housing) at a plurality of locations on the peripheral edge.

  As the lens holding structure, a hook structure in which the hook portion provided on the lens is locked to the locking portion of the holding member is preferably used. While this hook structure can be relatively firmly fixed, there are cases where the number and the number of hook portions are limited depending on the molding conditions when the hook portion is integrally molded with the peripheral edge of the lens.

  Specifically, in forming the hook part, a set of main parts for forming the main surface (front surface and rear surface) of the lens as a mold for forming a hole (or convex part) in the hook part. In addition to the mold, a slide mold that can slide in a direction different from the contact / separation direction of the main mold must be used. For this reason, depending on the desired location and number of hook portions, interference between the two slide molds that form adjacent hook portions may occur, which may make molding impossible.

Therefore, in such a case, a fitting structure that does not require a slide mold for molding the lens is applied to a place where the hook structure cannot be applied among a plurality of places where the holding structure is provided.
As shown in FIG. 2A, the fitting structure 70 is configured to fit a protrusion 81 that protrudes laterally from an end of the lens 80 into an insertion hole 91 formed in the holding member 90 ( By inserting, the lens 80 is held by the holding member 90 (see, for example, Patent Documents 1 to 3). In this fitting structure 70, since the protrusion 81 is simply provided at the end of the lens 80, the protrusion 81 can be integrally formed with the lens 80 without using a slide mold. .

Japanese Patent No. 4322974 Utility Model Registration No. 2572351 Utility Model Registration No. 2553521

  However, in the fitting structure 70 in which the protruding portion 81 of the lens 80 is fitted into the insertion hole 91 of the holding member 90, since the light does not easily enter into the insertion hole 91, the lamp is viewed from the front (the lens 80 side). When viewed, as shown in FIG. 2 (b), only the portion provided with the fitting structure 70 appeared dark, and the appearance was impaired.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a vehicular lamp that holds a lens in a fitting structure and has a good appearance.

In order to solve the above problems, the present invention provides:
A lens and a holding member for holding the lens from the rear;
In a vehicle lamp comprising:
A fitting recess that opens to the side is formed at the end of the lens,
The holding member is formed with a fitting convex portion to be fitted into the fitting concave portion of the lens.

  According to the present invention, the lens is held on the holding member by the fitting structure in which the fitting convex portion formed on the holding member is fitted into the fitting concave portion formed on the end portion of the lens. As a result, unlike the conventional fitting structure in which the protrusion formed on the lens is fitted into the insertion hole of the holding member, the insertion member is not formed with an insertion hole that is difficult for light to enter. It is possible to prevent only the portion provided with the joint structure from appearing dark. Therefore, the appearance of the portion provided with the fitting structure can be made inconspicuous as compared with the conventional case, and the appearance of the lamp can be improved.

It is a fragmentary sectional view of the vehicular lamp in an embodiment. It is the fragmentary sectional view in the (a) fitting structure part of the conventional vehicle lamp, (b) It is an A arrow view of (a).

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a partial cross-sectional view of a vehicular lamp 1 according to the present embodiment.
In the following description, “front”, “rear”, “left”, “right”, “upper”, and “lower” refer to the direction viewed from the vehicular lamp 1 unless otherwise specified. .

  As shown in FIG. 1, the vehicular lamp 1 includes a housing 2 whose front surface is open and an outer lens 3 that covers the front opening of the housing 2. An extension 4 and an inner lens 5 are housed inside the lamp chamber formed by the housing 2 and the outer lens 3.

  Among these, the extension 4 is made of an opaque member formed in a bent plate shape, has a recess 4a that opens forward, and holds the inner lens 5 in the recess 4a. On the upper inner side surface of the concave portion 4a, a fitting convex portion 41 to be fitted into a fitting concave portion 51 of the inner lens 5 to be described later is projected downward. The fitting convex portion 41 is formed to have a predetermined length in the left-right direction (perpendicular to the plane of FIG. 1) along the upper inner surface of the concave portion 4a, and the front end surface (lower end surface) in a cross section orthogonal to the left-right direction. ) Is formed in a smooth arc shape.

  On the other hand, the inner lens 5 is a translucent member for controlling light distribution from a light source (not shown), and is formed in a substantially flat plate shape orthogonal to the front-rear direction. A fitting recess 51 that opens upward is formed at the upper end (upper end surface) of the inner lens 5. The fitting concave portion 51 is a portion into which the fitting convex portion 41 of the extension 4 is fitted, and is formed in a shape corresponding to the shape of the fitting convex portion 41. That is, the fitting recess 51 is formed to have a predetermined length in the left-right direction (perpendicular to the plane of FIG. 1) corresponding to the shape of the fitting protrusion 41, and the inner surface in a cross section orthogonal to the left-right direction. Is formed in a smooth arc shape. Therefore, the inner lens 5 is held by the extension 4 from the rear by a fitting structure in which the fitting convex portion 41 of the extension 4 is fitted to the fitting concave portion 51.

  Moreover, the part located ahead of the upper end part in which the fitting recessed part 51 was formed among the front surfaces 52 of the inner lens 5 becomes the process part 52a to which the fine embossing process or the cut process was given. That is, the processed portion 52a is a surface on which fine wrinkles or lens cuts are formed, and diffuses light transmitted through the processed portion 52a.

  According to the vehicle lamp 1 described above, the fitting convex portion 41 formed on the extension 4 (holding member) is fitted into the fitting concave portion 51 formed on the upper end portion of the inner lens 5 (lens). The inner lens 5 is held by the extension 4 depending on the structure. As a result, unlike the conventional fitting structure in which the protrusion formed on the lens is fitted into the insertion hole of the holding member, the insertion member is not formed with an insertion hole that is difficult for light to enter. It is possible to prevent only the portion provided with the joint structure from appearing dark. Therefore, the appearance of the portion provided with the fitting structure can be made inconspicuous as compared with the conventional case, and the appearance of the vehicular lamp 1 can be improved.

  Further, the extension 4 (holding member) holds the inner lens 5 (lens) from the rear by the fitting convex portion 41, that is, the inner lens by the fitting convex portion 41 provided in front of the extension 4. Unlike the conventional holding member that holds the lens by providing an insertion hole that opens to the front side, the protruding portion to the rear side due to the insertion hole is eliminated. , Can reduce the back meat. Thereby, while being able to reduce manufacturing cost, the freedom degree of a lamp room layout can be raised.

  In addition, since the fitting recess 51 and the fitting protrusion 41 are each formed in a smooth arc shape, unlike the case where the fitting recess 51 and the fitting protrusion 41 are formed in, for example, an angular rectangle, the Irregular reflection of light at the fitting recess 51 and the fitting projection 41 can be suppressed, and the appearance of the portion provided with the fitting structure can be made more inconspicuous.

  Further, since the processing portion 52a located in front of the upper end portion where the fitting recess 51 is formed in the front surface 52 of the inner lens 5 is subjected to fine embossing or cutting, the processing portion 52a is The transmitted light can be diffused to make the appearance of the portion provided with the fitting structure more inconspicuous.

  The embodiments to which the present invention can be applied are not limited to the above-described embodiments, and can be appropriately changed without departing from the spirit of the present invention.

  For example, in the above embodiment, the extension 4 has been described as the holding member according to the present invention, but the holding member may be a housing or a bracket as long as it holds the inner lens 5. Other lenses different from the outer lens 3 and the inner lens 5 may be used.

  Further, the position of the fitting recess 51 in the inner lens 5 does not have to be the upper end portion, and may be anywhere as long as it is an end portion (peripheral portion) of the inner lens 5. The position of the fitting convex portion 41 to be fitted into the fitting concave portion 51 is not particularly limited as long as it is a portion corresponding to the fitting concave portion 51 in the extension 4.

  Moreover, the fitting convex part 41 of the extension 4 may make it easy to reflect light by vapor-depositing an aluminum film.

DESCRIPTION OF SYMBOLS 1 Vehicle lamp 2 Housing 3 Outer lens 4 Extension (holding member)
4a Concave part 41 Fitting convex part 5 Inner lens (lens)
51 Fitting recess 52 Front 52a Processing part

Claims (3)

A lens and a holding member for holding the lens from the rear;
In a vehicle lamp comprising:
A fitting recess that opens to the side is formed at the end of the lens,
The vehicle lamp according to claim 1, wherein the holding member is formed with a fitting convex portion to be fitted into the fitting concave portion of the lens.   The vehicular lamp according to claim 1, wherein the fitting concave portion and the fitting convex portion are each formed in a smooth arc shape corresponding to each other.   3. The vehicle according to claim 1, wherein a portion of the front surface of the lens positioned in front of the end portion where the fitting recess is formed is subjected to graining or cutting. Lamps.

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