JP4106890B2 - Vehicle lighting - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a vehicular lamp, and more particularly to a vehicular lamp such as a headlamp.
[0002]
[Prior art]
This type of vehicular lamp is mounted in a housing having a front opening, a mounting groove on the periphery of the housing, and forms a lamp chamber with the housing, and is disposed in the lamp chamber so as to A reflector that reflects the illumination light and an inner panel for concealing the gap between the reflector and the housing are provided.
[0003]
In general, the inner panel is fixed to the lens by a screw-type fixing means, and the screw-type fixing means is provided at, for example, a boss portion provided on the inner wall of the lens and a peripheral edge portion of the inner panel, It is comprised from the flange part arrange | positioned opposingly, and the screw which fixes an inner panel to a lens through these flange parts and boss | hub parts.
[0004]
However, when such a screw-type fixing means is used, the number of parts increases because a part called a screw is required, and the assembly man-hour increases corresponding to the number of screws, resulting in an increase in assembly cost. It tends to end up. In addition, in the screw type fixing means, the boss portion can be seen from the outside of the vehicular lamp through the lens, which may reduce the design value.
[0005]
As a solution to such a problem, for example, there is a vehicular lamp as disclosed in Japanese Patent Application Laid-Open No. 11-7809. This vehicular lamp has a structure in which a holding piece is provided on an inner wall of a lens to sandwich and fix a part of the inner plate between the lens and the housing. In such a vehicular lamp, the number of screws can be reduced, so that the assembly cost can be kept low.
[0006]
[Problems to be solved by the invention]
However, the conventional vehicular lamp has a structure that is relatively weak in the lateral and vertical displacements of the vehicle since the inner lens is simply sandwiched between the lens and the housing from the longitudinal direction of the vehicle.
[0007]
The present invention has been made against the background of such a conventional technique, and it is an object of the present invention to provide a vehicular lamp that can securely fix an inner panel while reducing the number of screws.
[0008]
[Means for Solving the Problems]
According to a first aspect of the present invention, there is provided a vehicular lamp comprising a housing, a lens assembled and fixed to the housing to form a lamp chamber, and an inner panel disposed in the lamp chamber. And an engagement piece projecting from the inner wall surface of the lens substantially parallel to the mounting direction of the lens to the housing, and an opening formed in the inner panel to pass through the engagement piece to temporarily hold the inner panel. holding the engaging hole, the inner panel, wherein is temporarily held with a holding section provided at mutually opposing positions of the lens and housing across the inner panel to fix assembled the lens to the housing fixing And an inner panel fixing means including a holding portion. Furthermore, in the invention according to claim 1, the sandwiching portion is a rib projecting from the housing toward the inner panel at a position corresponding to the engagement hole of the inner panel, and the rear surface of the inner panel A rib abutting on a peripheral edge of the engagement hole of the inner panel, and a base portion provided wide at a base end portion of the engagement piece in a direction orthogonal to a protruding direction of the engagement piece, And a base portion that abuts against the periphery of the engagement hole of the inner panel on the front surface of the panel.
[0009]
According to the first aspect of the present invention, there is provided an engagement piece that protrudes from the inner wall surface of the lens and is formed substantially parallel to the direction in which the lens is assembled to the housing, and is opened in the inner panel and is inserted through the engagement piece. An engagement hole for temporarily holding the inner panel on the lens, and a sandwiching portion which is provided at a position where the lens and the housing face each other and which fixes the temporarily held inner panel when the lens is assembled and fixed to the housing; Therefore, the screw-type fixing means can be reduced or eliminated. Therefore, the number of parts and the number of assembling steps can be reduced and the assembling cost can be reduced. The inner panel fixing means according to the present invention has a structure in which the inner panel is held between the lens and the housing in a state where the inner panel is held by inserting the engagement piece of the lens into the engagement hole of the inner panel. Therefore, the inner panel can be securely fixed in the lamp chamber. In the present invention, at least one inner panel fixing means may be configured as an inner panel fixing means including an engaging piece, an engaging hole, and a holding portion.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 is a front view of a vehicular lamp according to this embodiment, FIG. 2 is a top view of the vehicular lamp, FIG. 3 is a cross-sectional view taken along line BB in FIG. 1, and FIG. FIG. 5 is a cross-sectional view taken along the line GG in FIG. 1, FIG. 6 is a cross-sectional view taken along the line H-H in FIG. 1, and FIG. 5 is an enlarged cross-sectional view, FIG. 8 is a cross-sectional view showing the main part of the present invention along the line JJ in FIG. 1, and FIG. 9 is a cross-sectional view along the line KK in FIG.
[0011]
The vehicular lamp according to this embodiment is an example applied to the headlamp 1, and the outer side in the vehicle width direction is a lamp unit 1A for traveling (also used for passing), and the central side in the vehicle width direction is an auxiliary lamp unit 1B. In this embodiment, the headlamp on the left side of the vehicle is illustrated and described.
[0012]
The headlamp 1 includes a housing 11, a lens 13 that forms a lamp chamber 15 between the housing 11, a travel valve 17 and an auxiliary valve 19 provided in the lamp chamber, and the travel valve. 17 includes a reflector 21 that reflects the illumination light emitted from 17, and an inner panel 23 that conceals the housing 11 and the end portions of the reflector 21 and a gap therebetween.
[0013]
The housing 11 is fixed to the vehicle body, and has a mounting groove 25 that opens toward the front surface at the periphery of the front opening.
[0014]
The lens 13 has an assembly leg portion 27 inserted and fixed in the assembly groove 25 of the housing 11 to form a lamp chamber 15 between the lens 13 and the housing 13. The housing 11 and the lens 13 are inserted between the housing 11 and the lens 13 by inserting the assembly leg 27 of the lens 13 in a state where the assembly groove 25 of the housing 11 is filled with the hot melt material 53. While the gap is sealed, it is fixed by locking the lance 49 of the mounting leg 27 and the locking hole 51 of the mounting groove 25.
[0015]
The traveling valve 17 is mounted on a substantially cylindrical valve mounting opening 37 that opens at the center of the reflector 21 (FIG. 3), while the auxiliary valve 19 opens at the center of the inner panel 23 in the vehicle width direction. Is mounted and fixed to the substantially cylindrical valve mounting opening 32 (FIG. 4).
[0016]
A shade 20 is fixed to the reflector 21, and the shade 20 shields direct light traveling forward from the bulb 17. The reflector 21 is supported by the housing 11 so as to be tiltable in the vertical and horizontal directions, and an irradiation range using the bulb 17 as a light source can be selected according to the tilt. 6, 29 is a spherical seat portion of the housing 11, 31 in FIG. 6 is an aiming fulcrum of the reflector 21, and 33 in FIG. 6 is an up-down direction for tilting the reflector 21 up and down around the aiming fulcrum 31. Aiming means, 35 in FIG. 3, is a grommet that prevents water from entering the lamp chamber 15.
[0017]
Here, the inner panel 23 provided in the lamp chamber 15 is fixed to the lens 13 by a plurality of fixing means. The fixing means for the inner panel 23 is roughly divided into two types of fixing means. One is an existing screw type fixing means 47, and the other is an engagement piece 39 of the lens 13, an engagement hole 41 of the inner panel 23, a base portion 39b as a holding portion of the lens 13, A feature of the present embodiment is that the fixing means includes a rib 45 as a holding portion of the housing 11. The details will be described below.
[0018]
In the vicinity of the upper edge of the inner wall surface of this lens 13, as shown in FIGS. Has been. The engagement piece 39 is formed substantially parallel to the assembly leg portion 27. That is, the engagement piece 39 is formed substantially parallel to the direction in which the lens 13 is assembled to the housing 11. In addition, base portions 39 b are formed on both sides of the base end portion of the engagement piece 39.
[0019]
On the other hand, as shown in FIGS. 5 and 7 to 9, the inner panel 23 is provided at a position facing the engagement pieces 39, 39 of the lens 13, and the engagement pieces 39, 39 are inserted into the inner panel 23. Engagement holes 41 and 41 for temporarily holding the lens 23 on the lens 13 are provided. That is, when the inner panel 23 is fixed to the lens 13, the engagement pieces 39 and the engagement holes 41 serve as temporary holding means for temporarily holding the inner panel 23 on the lens 13. Further, on the back surface side of the engagement holes 39, 39 of the inner panel 23, there are a horizontal wall formed substantially parallel to the engagement piece 39 and a pair of vertical walls protruding substantially vertically from both ends of the horizontal wall. Protrusions 43 and 43 having a substantially U-shaped cross section are provided so as to serve as penetration guides for the engagement pieces 39 and 39.
[0020]
As shown in FIGS. 5 and 7 to 9, the housing 11 is provided at a position facing the base portion 39 b as the “clamping portion” of the lens 13, and between the base portion 39 b of the lens 13. Ribs 45, 45 are provided as “clamping portions” for clamping the inner panel 23.
[0021]
Therefore, when the lens 13 in which the inner panel 23 is temporarily held via the engagement pieces 39 and 39 and the engagement holes 41 and 41 is assembled and fixed to the housing 11, the ribs 45 and 45 (clamping portion) of the housing 11 and the lens The inner panel 23 is sandwiched and fixed between the lens 13 and the housing 11 by 13 base portions 39b (clamping portions).
[0022]
When the headlamp 1 is actually assembled, first, the inner panel 23 is temporarily held on the lens 13 while positioning the upper end of the inner panel 23 by the engagement pieces 39 and 39 and the engagement holes 41 and 41. Next, in this state, the lower end portion of the inner panel 23 is fixed by the screw-type fixing means 47, that is, the lower end portion of the inner panel 23 is fixed to the boss portions 48 and 48 at the lower end of the lens 13 with screws S and S. Thus, a temporary assembly including the lens 13 and the inner panel 23 is obtained. By assembling the temporary assembly to the housing 11, the assembly of the headlamp 1 is completed. At this time, the rib 45 of the housing 11 contacts the rear end surface of the protrusion 43 of the inner panel 23, while the rear surface of the base portion 39 b of the lens 13 contacts the front surface of the inner panel 23. The inner panel 23 is sandwiched and fixed between the two.
[0023]
According to such a configuration, the screw type fixing means 47 can be reduced as the fixing means of the inner panel 23. For this reason, the number of parts is reduced by the amount corresponding to the reduction in the number of screws S, the number of assembly steps is reduced, and the cost can be reduced. At this time, while having a structure in which the screw type fixing means 47 is reduced, the inner panel 23 is temporarily held so as not to move in the vehicle width direction left and right and up and down directions via the engagement pieces 39 and the engagement holes 41. The inner panel 23 is securely fixed by adopting fixing means that sandwiches the vehicle so as to be sandwiched from both sides in the vehicle front-rear direction.
[0024]
Moreover, according to this embodiment, since the two temporary holding means which consist of the engagement piece 39, the engagement hole 41, and the clamping parts 39b and 45 are provided, it respond | corresponds to each engagement hole 41 and 41. When the engaging pieces 39, 39 are inserted, the inner panel 23 is positioned on the lens 13, and the fixing operation of the inner panel 23 with the screw S is facilitated.
[0025]
Further, in general, in the screw type fixing means 47, the boss portion can be seen from the outside of the headlamp 1 through the lens 13, and the design value may be lowered. For example, the fixing means on the upper edge side of the lens 13 is constituted by the fixing means including the engaging piece 39, the engaging hole 41, and the holding portions 39b, 41 according to the present invention. It is not necessary to provide a boss portion having a low design property on the edge side, and a decrease in design property can be minimized.
[0026]
【The invention's effect】
According to the first aspect of the present invention, at least one of the fixing means for the inner panel includes an engagement piece that protrudes from the inner wall surface of the lens substantially parallel to the mounting direction of the lens to the housing. An engagement hole that is opened in the inner panel and passes through the engagement piece to temporarily hold the inner panel, and is provided at a position where the lens and the housing face each other. Since it comprises the holding part which holds and fixes the held inner panel, the screw type fixing means can be reduced. Therefore, the number of parts is reduced by the number of screws reduced, the screw tightening operation is omitted, and the inner panel mounting operation can be simplified. Although the fixing means does not use such a screw, the inner panel is held between the lens and the housing while the inner panel is held by inserting the lens engaging piece into the inner panel engaging hole. Because of the holding structure, the inner panel can be reliably and easily fixed.
[Brief description of the drawings]
FIG. 1 is a front view showing an embodiment of a vehicular lamp according to the present invention.
FIG. 2 is a top view of the vehicular lamp.
FIG. 3 is a cross-sectional view taken along line BB in FIG.
4 is a cross-sectional view taken along line DD in FIG. 1. FIG.
FIG. 5 is a cross-sectional view taken along the line GG in FIG.
6 is a cross-sectional view taken along the line HH in FIG. 1. FIG.
7 is an enlarged cross-sectional view of FIG. 5 showing the main part of the present invention.
8 is a cross-sectional view of the main part of the present invention along the line JJ in FIG. 1. FIG.
9 is a cross-sectional view taken along the line KK in FIG.
[Explanation of symbols]
1 Headlamp (vehicle lamp)
DESCRIPTION OF SYMBOLS 11 Housing 13 Lens 15 Lamp chamber 17 Bulb 21 Reflector 23 Inner panel 25 Assembly groove 27 Assembly leg part 39 Engagement piece 39b Base part (lens clamping part)
41 engagement hole 45 rib (holding part of housing)

Claims (1)

In a vehicular lamp comprising a housing, a lens that is assembled and fixed to the housing and forms a lamp chamber between the housing, and an inner panel disposed in the lamp chamber,
An engagement piece projecting from the inner wall surface of the lens substantially parallel to the mounting direction of the lens to the housing, and an engagement opening through the engagement piece and temporarily holding the inner panel through the inner panel And a pinching portion provided at a position where the lens and the housing face each other across the inner panel, and when the lens is assembled and fixed to the housing, the temporarily held inner panel is pinched and fixed. An inner panel fixing means comprising a holding portion ,
The holding portion is
A rib projecting from the housing toward the inner panel at a position corresponding to the engagement hole of the inner panel, the rib contacting the peripheral edge of the engagement hole of the inner panel on the rear surface of the inner panel;
A base portion that is wide at a base end portion of the engagement piece in a direction orthogonal to a protruding direction of the engagement piece, and abuts against a peripheral edge of the engagement hole of the inner panel on the front surface of the inner panel. The foundation,
Vehicle lamp, characterized in that it is composed of.

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