JP2010215080A - Lighting unit for vehicle - Google Patents

Abstract

A headlamp that can reinforce the most loaded portion from the bumper side with an outer lens and suppress the occurrence of cracks.
In a headlamp that forms a lamp chamber with a lamp housing and an outer lens, a bumper holding portion for holding a bumper is set near the lower edge of the outer lens. A support rod 60 that supports the bumper holding portion 62 from below is provided on the lamp housing 5 located behind the portion 62.
[Selection] Figure 2

Description

  The present invention relates to a vehicular lamp, and more particularly to a vehicular lamp having a structure capable of suppressing the occurrence of breakage in a portion overlapping with a bumper edge in a car outer lens.

  As a vehicular lamp, for example, there is a headlamp 100 as shown in FIG. The headlamp 100 has a recess 102 formed in the lower part (near the lower edge) of the outer lens 101. The upper edge end 104 of the bumper 103 is inserted into the recess 102, and the bumper 103, the outer lens 101, In some cases, the gap 105 is set small to improve the design appearance. Further, in such a headlamp 100, a conventional technique is known in which a retainer (not shown) is interposed between the bumper 103 (see, for example, Patent Document 1).

  In the above prior art, a retainer (not shown) locked to the recess 102 is fixed to the lamp housing 106 side of the headlamp 100, and the upper edge 104 of the bumper substantially disposed in the recess 102 is formed. By fitting and fixing to the retainer, the movement in the gap direction between the headlamp 100 and the bumper 103 is regulated to improve the installation accuracy.

JP 2008-162551 A

  However, in the headlamp 100 shown in FIG. 4, since the upper edge end portion of the bumper 103 is placed on the concave portion 102 of the outer lens 101, when an unnecessary external force or load is applied to the bumper 103, There is a problem that 107 is expanded and cracks are easily generated. As shown in FIG. 4, since the concave portion 102 of the outer lens 101 is a narrow space, there is a gap between the bumper holding surface 102A and the lower surface (contact surface) 104A of the upper edge end portion 104 of the bumper 103. It is difficult to secure. Therefore, when an external force is applied to the bumper 103 with a slight gap, the lower surface 104A of the upper edge end portion 104 of the bumper 103 is pressed against the bumper holding surface 102A of the recess 102, and thus the above problem cannot be solved.

  When the retainer fixed to the lamp housing 106 is interposed between the headlamp 100 and the bumper 103 as in the above prior art, the retainer (not shown) disposed in a narrow space in the recess 102 and the upper edge of the bumper 103 It is difficult to insert a tool for fixing and operating the end 104. In addition to the retainer, the above-described prior art also requires a bumper bracket and a screw for fastening the bumper bracket, which increases the number of parts. Further, there is a problem that it is not possible to take measures to fix the bumper 103 more firmly than necessary in order to prevent the occurrence of cracks in the outer lens 101 of the headlamp 100 due to pedestrian protection requirements.

  Therefore, an object of the present invention is to provide a bumper mounting structure that can locally reinforce the most loaded portion of the outer lens without increasing the number of parts, thereby suppressing the occurrence of cracks and is advantageous for pedestrian protection. It is in providing the vehicle lamp which can employ | adopt.

  A feature of the present invention is a vehicular lamp that forms a lamp chamber with a lamp housing and an outer lens. A bumper holding portion for holding a bumper is provided in the vicinity of the lower edge of the outer lens. The gist is that a support member capable of supporting the bumper holding portion from below is extended to the lamp housing located at the rear.

  Here, it is preferable that the bumper receiving surface that receives the bumper of the bumper holding portion and the support member receiving surface that receives the bumper holding portion of the support member are provided so as to be parallel to the lamp optical axis direction.

  Further, the bumper holding portion is a portion formed so as to be folded back so that the vicinity of the lower edge of the outer lens is recessed toward the lamp chamber, and the end of the bumper holding portion on the lamp chamber side is the length direction of the support member It is preferable to be located closer to the base side of the support member than the center.

  According to the present invention, it is possible to realize a vehicular lamp that can locally reinforce a portion of the outer lens that is most loaded and suppress the occurrence of cracks.

  Moreover, according to this invention, the vehicle lamp which can employ | adopt a bumper attachment structure advantageous to a pedestrian protection is realizable.

  Furthermore, according to the present invention, it is possible to realize a vehicular lamp that can suppress an increase in cost without increasing the number of mounting parts on the bumper side, and can be easily mounted.

It is a perspective view which shows the principal part of the vehicle which shows the part to which the headlamp as a vehicle lamp which concerns on embodiment of this invention was attached. 1 shows a headlamp according to a first embodiment of the present invention, and is a cross-sectional view of an essential part of the AA cross section of FIG. FIG. 4 is a cross-sectional view of a main part of a portion corresponding to the AA cross section of FIG. 1, showing a headlamp according to a second embodiment of the present invention. It is principal part sectional drawing which shows the conventional headlamp periphery.

  Hereinafter, a headlamp 1 as a vehicular lamp according to each embodiment of the present invention will be described with reference to the drawings. In each embodiment, the present invention is applied to a headlamp as a vehicular lamp, but the vehicular lamp according to the present invention includes a fog lamp, a front combination lamp, and the like.

(First embodiment)
FIG. 1 is a perspective view of a main part showing an external appearance of a headlamp 1 according to a first embodiment of the present invention attached to a vehicle body, and FIG. 2 is a cross-sectional view taken along line AA of FIG.

  The headlamps 1 are mounted on both sides of the front part of the vehicle, and are arranged in a region surrounded by a bumper 2, a hood 3, and a fender 4, as shown in FIG. As shown in FIG. 2, the headlamp 1 includes a lamp housing 5, an outer lens 6, a reflector 7, and a light source 8. In the headlamp 1, a lamp chamber 10 is formed by the lamp housing 5 and the outer lens 6.

  The lamp housing 5 is made of, for example, a resin material. As shown in FIG. 2, the lamp housing 5 has a hollow container shape in which an opening is formed in a front end portion 51 that emits light and a rear end portion 52 to which the light source 8 is attached.

  In the front end portion 51, a seal groove portion 53 is formed over the entire periphery of the opening edge. An edge 61 of the outer periphery of the outer lens 6 is fitted into the groove of the seal groove 53 via a filled seal member 54. The structure of the outer lens 6 will be described later.

  A light source side member 81 to which the light source 8 is attached is attached to the opening of the rear end portion 52 of the lamp housing 5 to close the opening. A substantially cylindrical reflector 7 that circulates and surrounds the light source 8 is arranged around the front end of the light source side member 81. The reflector 7 is attached to the lamp housing 5 in the lamp chamber 10 via an optical axis adjusting mechanism (not shown). In FIG. 2, the alternate long and short dash line a indicates the optical axis of the light source 8.

  A plurality of attachment portions 55 that are attached and fixed to the vehicle body side member 9 are extended on the outer side portion of the lamp housing 5. The lamp housing 5 may be attached to a part around the front of the automobile such as a radiator core and a radiator support in addition to the vehicle body side member 9.

  As shown in FIG. 2, a support rod (support bolt) 60 as a support member projects forward from the lower portion of the lamp housing 5 in the lamp chamber 10. In addition, the part which receives the lower surface of the bumper holding | maintenance part 62 mentioned later in the support rod 60 is set so that it may be parallel to the optical axis a direction. In the present embodiment, the protruding direction of the support rod 60 is set to be parallel to the optical axis a direction, and the peripheral surface of the support rod 60 is set to be parallel to the lower surface of the bumper holding portion 62.

  The support rod 60 is fixed by being screwed into the thick rod mounting portion 56 formed at the lower portion of the lamp housing 5 from the outside toward the inside. The support rod 60 includes a head portion 60A, a male screw portion 60B, and a rod portion 60C. Between the head 60A of the support rod 60 and the rod mounting portion 56, an O-ring 57 is interposed to maintain watertightness. Depending on the width dimension of the headlamp 1, a plurality of support rods 60 may be arranged at predetermined intervals in the vehicle width direction. The support rod 60 may be attached to the support rod 60 without the head 60A using a washer, a nut, or the like.

  The outer lens 6 is formed of a resin material having transparency. The outer lens 6 is recessed toward the inner side of the lamp chamber 10 (bent so as to be folded back) at the lower portion (near the lower edge) when mounted on the vehicle, and recessed at the front side (concave groove). A bumper holding part 62 forming 63 is formed. The bumper holding portion 62 is formed in the outer lens 6 so that an end edge portion 21 of the bumper 2 described later overlaps. As shown in FIG. 2, the lower side surface (bumper receiving surface) 62A in the groove of the recess 63 is set to be parallel to the optical axis a direction. Accordingly, the lower side surface 62A is set to be parallel to the protruding direction of the support rod 60.

  The outer lens 6 is fixed in a state in which the peripheral edge 61 is fitted in the seal groove 53 of the lamp housing 5 via the seal member 54.

  The upper portion of the bumper 2 is an upper end portion of the design surface shown in FIG. 1 and is bent obliquely downward toward the vehicle side, and the edge portion 21 of the bent portion is the lower surface of the concave portion 63 of the outer lens 6. The shape is bent so as to be parallel to 62A.

  As shown in FIG. 2, in a state where the bumper 2 and the headlamp 1 are mounted on the vehicle side, the end edge portion 21 of the bumper 2 enters the recess 63 in the outer lens 6 and is disposed on the lower side surface 62A. Has been. In a normal state, the load from the bumper 2 side is set so as not to reach the lower side surface 62A.

  The end of the bumper holding portion 62 (the end of the bent portion) is set so as to be positioned closer to the base side of the support rod 60 than the center in the length direction of the protruding portion of the support rod 60.

  In the headlamp 1 having such a configuration, for example, when an obstacle collides with the bumper 2, the end edge portion 21 of the bumper 2 is pressed against the lower side surface 62 </ b> A of the bumper holding portion 62 of the outer lens 6 and a load is applied. However, since the support rod 60 is disposed on the lower side of the bumper holding portion 62, the bending of the bumper holding portion 62 is not expanded by a slight load, and a crack occurs at the end of the bumper holding portion 62. Can be suppressed. In addition, in the edge part 21 of the bumper 2, in the part which does not overlap with the headlamp 1, since a displacement is accept | permitted according to a load, it has an attachment structure advantageous for pedestrian protection.

  Further, in the headlamp 1 having such a configuration, the support rod 60, the lower side surface 62A of the peripheral edge of the outer lens 6, and the end edge portion 21 of the bumper 2 are set so as to be parallel to each other. When a load having a rear component is applied to 2, these members slide to each other and allow displacement, which works advantageously for pedestrian protection and suppresses breakage of the members.

  According to the headlamp 1 according to the present embodiment, the occurrence of cracks in the bumper holding portion 62 of the outer lens 6 can be suppressed. In addition, since the bumper holding portion 62 that is most likely to crack in the outer lens 6 is locally supported by the support rod 60, it is not necessary to strengthen the mounting strength of the bumper 2 more than necessary, and it is advantageous for bumper mounting for pedestrian protection. A structure can be adopted. Moreover, according to this Embodiment, the increase in cost can be suppressed, without increasing the number of attachment parts by the side of the bumper 2. FIG. Further, the headlamp 1 having the above configuration has an effect of facilitating the mounting of the bumper 2.

  Further, in the headlamp 1 according to the present embodiment, the end of the bumper holding portion 62 is set to be located closer to the base side than the center of the protruding length of the support rod 60. It is possible to prevent the support rod 60 from being damaged or bent when a load is applied to the holding portion 62. Therefore, it is possible to suppress the occurrence of cracks at the end portion of the bumper holding portion 62 of the outer lens 6.

(Second Embodiment)
FIG. 3 is a cross-sectional view of a main part showing a headlamp 1A according to the second embodiment of the present invention. The present embodiment differs from the first embodiment in that a support protrusion 58 integrally formed with the lamp housing 5 is provided as a support member. Other configurations in the present embodiment are the same as those in the first embodiment, and a description thereof will be omitted. Therefore, in the present embodiment, only the configuration of the support protrusion 58 will be described.

  As shown in FIG. 3, the support protrusion 58 includes a support protrusion 58A and reinforcing ribs 58B formed in a triangular shape over the lamp housing 5 to reinforce the support protrusion 58A. . The supporting protrusions 58 </ b> A extend forward from the inner wall of the lamp housing 5. The upper surface of the support protrusion 58A is set to be parallel to the optical axis a direction. The reinforcing ribs 58B include those formed on the lower side of the supporting protrusions 58A and those formed on the upper side. The reinforcing rib 58B formed on the lower side is integrally formed on the lower surface of the support protrusion 58A so as to extend from the lower surface of the tip portion of the support protrusion 58A to the lamp housing 5. The reinforcing rib 58B formed on the upper side is integrally formed on the base side of the supporting protrusion 58A up to the lamp housing 5 so as not to interfere with the bumper holding portion 62 of the outer lens 6.

  In the headlamp 1A having such a configuration, since the supporting projection 58 is integrally formed with the lamp housing 5, the cost and the mounting can be reduced without increasing the number of parts on the bumper 2 side and the headlamp 1A side. Labor saving can be achieved, and the occurrence of cracks in the bumper holding portion 62 in the outer lens 6 can be suppressed.

Also in the headlamp 1A according to the present embodiment, similarly to the first embodiment, the bumper holding portion 62 that is most likely to crack in the outer lens 6 is locally supported by the support protrusions 58. Therefore, it is not necessary to strengthen the mounting strength of the bumper 2 more than necessary, and a bumper mounting structure that is advantageous for pedestrian protection can be employed.
(Other embodiments)

  The first and second embodiments of the present invention have been described above. However, it should not be understood that the description and drawings constituting a part of this disclosure limit the present invention. From this disclosure, various alternative embodiments, examples and operational techniques will be apparent to those skilled in the art.

  For example, in the first and second embodiments, the present invention is applied to a headlamp as a vehicular lamp. However, the present invention is applied to a fog lamp, a front combination lamp, and the like arranged adjacent to a bumper. May be applied.

  In the second embodiment, a plurality of support protrusions 58 may be arranged in parallel, and the width dimension of the support protrusion 58A is set wide in the single support protrusion 58. May be. In addition, when the width dimension of the support protrusion 58A is set wide, the number and thickness of the reinforcing ribs 58B may be appropriately changed.

1, 1A Headlamp (Vehicle lamp)
2 Bumper 5 Lamp housing 6 Outer lens 8 Light source 10 Lamp chamber 21 Edge (bumper)
58 support protrusion 58A support protrusion 58B reinforcing rib 60 support rod 62 bumper holding part 62A lower side 63 recess

Claims (3)

A vehicular lamp that forms a lamp chamber with a lamp housing and an outer lens,
A bumper holding portion for holding the bumper is provided in the vicinity of the lower edge of the outer lens,
A vehicular lamp characterized in that a support member capable of supporting the bumper holding portion from below is extended to the lamp housing located behind the bumper holding portion.   The bumper receiving surface that receives the bumper of the bumper holding portion and the support member receiving surface that receives the bumper holding portion in the support member are provided so as to be parallel to the lamp optical axis direction. Item 2. A vehicle lamp according to Item 1. The bumper holding portion is a portion formed so as to be folded back so that the vicinity of the lower edge of the outer lens is recessed toward the lamp chamber,
3. The vehicle according to claim 1, wherein an end of the bumper holding portion on the lamp chamber side is located closer to a base side of the support member than a center in a length direction of the support member. Lamps.

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