JPH08222014A - Vehicle lighting - Google Patents

Abstract

(57) [Abstract] [Purpose] In a vehicle lamp in which a light source is arranged in a lamp chamber defined by a reflecting mirror and an inner lens, while improving the vibration resistance of the inner lens detachably attached to the reflecting mirror. Make it easy to attach the inner lens to the reflector. [Structure] A headlamp 1 has a reflecting mirror 19 and an inner lens 28 arranged in a lamp body 2, and
A light bulb 44 is disposed in a lamp chamber 37 defined by the inner lens 28 and the inner lens 28. A support member 29 having an elastic contact piece 35 elastically contacted with a protrusion 28a formed on the lower edge of the inner lens 28 is provided on the bottom surface portion 25 of the reflection portion 21, and an attachment member 36 formed of an elastic material, The inner lens 28 is attached to the reflecting mirror 19 by means of 36 with its upper edge abutting the ribs 24a, 24a of the reflecting mirror 19.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicular lamp in which a light source is arranged in a lamp chamber defined by a reflecting mirror and an inner lens, and improves the vibration resistance of the inner lens attached to the reflecting mirror. An object of the present invention is to provide a new vehicular lamp in which a lens can be easily attached to a reflecting mirror.

[0002]

2. Description of the Related Art A vehicular lamp is provided with a reflecting mirror arranged in a lamp space defined by a lamp body and a lens covering the opening, and an inner lens provided so as to cover the opening of the reflecting mirror. Are known.

FIG. 13 shows an example a of such a lamp.

Reference numeral b is a lamp body made of synthetic resin, and an opening c facing forward (the irradiation direction of the lamp is the front).
Are covered by the outer lens d.

In a lamp space e defined by the lamp body b and the outer lens d, a reflecting mirror f made of synthetic resin is arranged, and the reflecting mirror f has a front-facing opening g.
have. Screw holes h, h, ... for fixing an inner lens, which will be described later, to the upper edge of the reflecting mirror f with screws.
.. (only one of them is shown in the figure) is formed,
Further, the engaging hole i is provided at a position near the front end of the bottom surface of the reflecting mirror f.
Are formed.

Reference numeral j denotes an inner lens which covers the opening g of the reflecting mirror f from the front, and a lens step (not shown) is formed. The inner lens j has notches k, k, ... (Only one of which is shown in the drawing) formed at its upper edge portion, and an engaging projection 1 is provided at the lower edge portion. There is.

When fixing the inner lens j to the reflecting mirror f, the lower edge portion of the inner lens j is positioned by engaging the engaging projection 1 with the engaging hole i of the reflecting mirror f. After that, the upper edge of the inner lens j is brought into contact with the front end of the reflecting mirror f, and the mounting screws m, m, ... (Only one of them is shown in the drawing is shown through the notches k, k ,. ) Are screwed into the screw holes h, h ,.

Reference numeral n denotes a light bulb, the glass bulb o of which passes through a light bulb insertion hole p and a light bulb mounting hole q formed in the lamp body b and the reflection mirror f, respectively, and an inner lens j and a reflection mirror f.
It is located in a lamp room r defined by and.

[0009]

By the way, in the above lamp a, the upper edge of the inner lens j is fixed to the reflecting mirror f by screwing, and the engaging projection of the inner lens j is fixed. Since l is engaged with the engaging hole i of the reflecting mirror f, vibration (vehicle vibration or the like) is directly transmitted from the reflecting mirror f to the inner lens j, and the inner lens j
There is a problem that it may cause cracks and the like. Further, since the upper edge portion of the inner lens j is fixed to the reflecting mirror f by screws, there is a problem that the work is troublesome.

[0010]

In order to solve the above-mentioned problems, the vehicular lamp of the present invention has a reflecting mirror and an inner lens arranged in the lamp body, and an image is formed by the reflecting mirror and the inner lens. In a vehicular lamp in which a light source is arranged in a lamp chamber formed, a reflecting mirror is provided with a supporting portion for elastically contacting and supporting a protrusion formed on a lower edge portion of an inner lens, and an upper edge of the inner lens. A mounting member made of an elastic material is provided to mount the portion in contact with the reflecting mirror.

[0011]

Therefore, according to the present invention, the projection formed on the lower edge of the inner lens is elastically contacted with the support, and
Since the upper edge portion of the inner lens is attached to the reflecting mirror by using the elastic attaching member, the vibration transmitted from the reflecting mirror to the inner lens can be absorbed by the supporting portion and the attaching member, and the inner lens It can be easily attached to the reflecting mirror.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The details of the vehicular lamp of the present invention will be described below with reference to the illustrated embodiments. In addition, the illustrated embodiment is one in which the present invention is applied to a vehicle headlight.

Reference numeral 1 denotes a headlight, and a lamp space 4 is defined by a lamp body 2 which is open to the front and a front lens 3 which covers the opening of the lamp body 2 from the front.

The lamp body 2 is made of synthetic resin and has a recess 2a which is open toward the front. A lens mounting portion 5 for mounting the front lens 3 is formed on the front opening edge, and the lens mounting portion 5 is formed with a mounting groove 5a that is open toward the front.

The lamp body 2 has two parts 2A and 2B.
Are connected to each other, and a reflection means for the traveling beam is arranged in the accommodation space 4A defined by the portion 2A and the portion of the front lens 3 corresponding thereto, and the portion 2B and the corresponding front surface. Reflecting means for the passing beam is arranged in the accommodation space 4B defined by the lens 3 portion.

The rear wall 6 of the portion 2A is integrally formed with a cylindrical tubular portion 7 projecting rearward, and a protrusion projecting from the inner peripheral surface of the tubular portion 7 toward the center of the tubular portion 7. A large circular opening 9 is formed by the wall 8.

Further, a cylindrical tubular portion 11 projecting rearward is integrally formed on the rear wall 10 of the portion 2B, and is provided so as to project from the inner peripheral surface of the tubular portion 11 toward the center of the tubular portion 11. A large circular opening 13 is formed by the protruding wall 12.

The front lens 3 is formed by integrally forming a front surface portion 14 that covers the front surface of the recess 2a of the lamp body 2 and a peripheral wall portion 15 that projects rearward from the peripheral edge of the front surface portion 14 with a synthetic resin. Then, the rear end portion 17 of the peripheral wall portion 15 is fitted into the installation groove 5a of the lamp body 2 through the sealant 16, and in that state, the leaf spring clips 18, 18 ,.
The front lens 3 is fixed to the lamp body 2 by sandwiching the rear end portion 17 of the peripheral wall portion 15 and the mounting portion 5 from the side by (see FIG. 1).

Reference numeral 19 is a reflecting mirror made of synthetic resin, and a reflecting portion 20 for a traveling beam and a reflecting portion 21 for a low beam are integrally formed. Although not shown, the reflecting mirror 19 is supported on the lamp body 2 by an aiming mechanism (not shown) so that it can be tilted vertically and horizontally in the lamp space 4.

The reflecting portion 20 is formed by integrally forming an effective reflecting portion 20a having a predetermined reflecting surface and a side surface portion 20b projecting forward from the peripheral edge of the effective reflecting portion 20a. A light bulb mounting hole 22 is formed in a substantially central portion of the effective reflection portion 20a (see FIG. 2), and a notch 22a continuously extending laterally is formed for positioning the light bulb. There is.

The reflecting portion 21 is formed by integrally forming an effective reflecting portion 21a having a predetermined reflecting surface and a side surface portion 21b protruding forward from the peripheral edge of the effective reflecting portion 21a.

In the portion of the side surface portion 21b near the front end of the upper surface portion 23, rearward recesses 24, 24 are formed (only one of them is shown in FIG. 4), and the front edge of the upper surface portion 23 is formed. Notches 23a, 23 are provided in front of the recesses 24, 24.
a are formed respectively. Then, on the inner surface of the upper surface portion 23, the walls forming the recesses 24, 24 and the notches 23a, 23a
Between the ribs 24a, 24a, ...
Is integrally formed with the upper surface portion 23. The rib 24
are provided for abutting and receiving the upper edge portion of the inner lens, which will be described later, and for reinforcing the reflecting portion 21.

Reference numeral 25 denotes a bottom surface portion of the side surface portion 21b, which is shown in FIG.
Further, as shown in FIG. 8, the step 25a is formed by lowering the portion near the front end of the step 25a, and the fitting hole 26 having a substantially trapezoidal shape in a plan view is adjacent to the front side of the step 25. Formed (see FIG. 8). The fitting hole 26 is provided for attaching a support member that supports a lower edge portion of the inner lens described later.

FIG. 7 shows the effective reflection portion 21a at the substantially central portion thereof.
As shown in FIG. 3, a light bulb mounting hole 27 is formed, and the light bulb mounting hole 27 is a substantially I-shaped hole extending in the vertical direction,
A notch 27a extending continuously to the side is formed for positioning the bulb.

Reference numeral 28 denotes an inner lens that covers the opening of the reflecting portion 21, and is made of a glass material. As shown in FIG. 10A, the inner lens 28 is formed with a protrusion 28a projecting downward at the lower end thereof, and engaging grooves 28b, 28b are formed on the upper edge of the front surface thereof. The ridges 28c, 2 which are formed to project forward when formed
8c is formed. The distance between the protrusions 28c and 28c is substantially equal to the distance between the cutouts 23a and 23a of the reflecting portion 21. Further, the engagement groove 28b has a flat portion 28d extending in the left-right direction as shown in an enlarged manner in FIG.

In the present embodiment, the support portion for receiving the projection 28a of the inner lens 28 and supporting it is a synthetic resin support member 29 formed separately from the reflecting portion 21. There is. The supporting member 29 is attached to the reflecting portion 21 by fitting it from above into a fitting hole 26 formed in the bottom surface portion 25 of the reflecting portion 21.

As shown in FIGS. 11 and 12, the support member 29 is provided with a recess 29a which is substantially trapezoidal in plan view. The concave portion 29a facing upward has a bottom surface portion 30,
Front surface portion 31, rear surface portion 32, right side surface portion 33, left side surface portion 34
Is surrounded by the bottom surface 25 and the rear surface 32.
A resilient contact piece 35 is formed so as to cut and raise a middle portion in the left-right direction and straddle both of them. That is,
The elastic contact piece 35 is bent in a V shape when viewed from the side, and its upper end is projected forward from a portion near the upper edge of the rear surface portion 32, extends obliquely downward, and is further bent downward. And is continuous with the bottom portion 30. This bullet contact piece 35
Is provided to absorb the vibration transmitted from the reflecting portion 21 via the protrusion 28a.

It should be noted that the front surface portion 31 is formed with a claw portion 31a whose upper end portion projects toward the front, and the rear surface portion 32 has a claw portion 32a, 32a whose upper end portion projects toward the rear.
Are formed on both sides of the elastic contact piece 35, and these claw portions 3
When the support member 29 is fitted in the fitting hole 26 of the reflecting portion 21, the upper ends of the supporting members 1a, 32a, and 32a are fitted in the fitting hole 2.
It is provided so as to be elastically contacted with the opening edge of 6 from the lower side, so that the support member 29 is not easily disengaged from the fitting hole 26.

Reference numerals 36 and 36 denote attachment members for attaching the upper edge portion of the inner lens 28 to the reflection portion 21 and are made of an elastic material. As the mounting member 36, for example, as shown in FIG. 5, a clip made of a leaf spring whose side surface is formed into a substantially Ω shape by folding back both end portions 36a, 36a is used. The reason why the mounting member 36 is made of an elastic material is to absorb the vibration transmitted from the reflecting portion 21 to the inner lens 28. Therefore, the mounting member 36 is not limited to a leaf spring and may be made of a synthetic resin material or the like. Of course good things.

In attaching the inner lens 28 to the reflecting portion 21, first, the support member 29 is fitted into the fitting hole 26 of the reflecting portion 21, and then the protrusion 2 of the inner lens 28 is fitted.
8a is fitted into the recess 29a of the support member 29 (see FIG. 6). As a result, the protrusion 28 of the inner lens 28
The elastic contact piece 35 of the support member 29 is elastically contacted with and supported by the rear surface of a. Then, the inner lens 28 is tilted toward the reflecting portion 21 so that the back surface of the upper edge portion thereof is ribs 24a, 24.
After being brought into contact with a, ..., As shown in FIG. 4, the end portions 3 of the attachment members 36, 36 (only one of which is shown in the figure).
6a and 36a are the engagement grooves 2 of the inner lens 28, respectively.
8b and the recessed portions 24, 24 of the upper surface portion 23 of the reflection portion 21 and the protrusions 28c, 28c of the inner lens 28 and the portion near the front end of the reflection portion 21 are laterally sandwiched to reflect the inner lens 28. It may be attached to the part 21. In this way, the lamp chamber 37 is defined by the inner lens 28 and the reflecting portion 21.

Reference numeral 38 is a light bulb for a traveling beam (see FIG. 2), and its glass bulb 38a has an opening 9 in the lamp body 2.
Through the light bulb mounting hole 22 of the reflection part 20 and is arranged in the reflection part 20. The base portion 39 of the light bulb 38 is provided with a flange 40 at a position slightly rearward from the middle.
When attaching the light bulb 38 to the reflection part 20,
Glass bulb 3 while positioning the lamp with respect to the bulb mounting hole 22.
8a and the front half of the base portion 39 are inserted into the bulb mounting hole 22, and the flange 40 is brought into contact with the rear surface of the reflecting portion 20. Then, the light bulb 38 may be attached to the reflecting portion 20 while the flange 40 is pressed against the rear surface of the reflecting portion 20 by elastically contacting the rear end of the base portion 39 with the set spring 41. In addition, the set spring 41 has a part of the reflection portion 2
0 is screwed to the rear surface, and one end thereof is locked to a locking claw 42 projecting on the rear surface of the reflecting portion 20. Also, the light bulb 38
The base portion 39 projects rearward from the bulb mounting hole 22 in a state where the base portion 39 is mounted on the reflection portion 20, and the contact piece 43 projects rearward from the rear end surface of the base portion 39.

Reference numeral 44 is a light beam for a low beam, and its glass bulb 44a is arranged in the lamp chamber 37 from the opening 13 of the lamp body 2 through the light bulb mounting hole 27 of the reflecting portion 21. The base portion 45 of the light bulb 44 is provided with a flange 46 at a position slightly rearward from the middle. When attaching the light bulb 44 to the reflection portion 21, the glass bulb 44a and the front half of the base portion 45 are inserted into the light bulb attachment hole 27 while positioning the light bulb 44 in the light bulb attachment hole 27, and the flange 46 is attached to the reflection portion. 21 to abut the rear surface. Then, the light bulb 44 may be attached to the reflecting portion 21 while the flange 46 is pressed against the rear surface of the reflecting portion 21 by elastically contacting the set spring 47 with the rear end of the base portion 45. still,
A part of the set spring 47 is screwed to the rear surface of the reflecting portion 21, and one end of the set spring 47 is locked to a locking claw 48 protruding from the rear surface of the reflecting portion 21. Further, when the light bulb 44 is attached to the reflecting portion 21, a contact piece 49 is provided from the rear end surface of the base portion 45 protruding rearward from the light bulb attaching hole 27.
Is projected to the rear.

Numerals 50 and 50 'are adapter members which are attached to the rear ends of the reflecting portions 20 and 21, respectively. still,
Since these adapter members have the same configuration, only the member 50 relating to the low beam light bulb 44 will be described, and the other member 50 ′ will be given the same reference numerals as those given to the member 50. The description is omitted.

The adapter member 50 has contact parts 49 of the light bulb 44 and connector parts 51, 51 to which the rear ends of the base parts 45 are respectively connected, and the contact parts forming part of the connector parts 51, 51. 51a, 51a are projected rearward from the rear end face. In addition, the adapter member 50 has a base 4
5 is attached to the rear end portion of the reflecting portion 21 by means not shown so as to cover the portion near the rear end of 5.

Reference numerals 52 and 52 'denote caps for holding the adapter member 50, which are attached to the rear ends of the portions 2A and 2B of the lamp body 2, respectively. Since the caps 52 and 52 'have the same structure, only the cap 52 related to the low beam light bulb 44 will be described, and the other cap 52' has a cap 5 for each part.
The description is omitted by assigning the same reference numerals to the reference numeral 2.

The cap 52 is a rubber socket cover 5
3 and a lock ring 54 formed of synthetic resin in a ring shape.

The socket cover 53 comprises a holding portion 53a for holding the adapter member 50 and a body portion 53b attached to the lock ring 54, which are connected by a thin bellows portion. When attaching the cap 52 to the lamp body 2, first, the body portion 53 b is attached to the lock ring 54, and then the front end portion of the lock ring 54 is fitted into the opening 13 of the lamp body 2 and the front end portion of the lock ring 54. The locking portions 54a, 54a, ... Formed in the above are inserted into notches (not shown) formed continuously with the opening 13 of the lamp body 2, and then the lock ring 54 is rotated. As a result, the front end of the lock ring 54 is fitted in the opening 13 of the lamp body 2 and the cap 52 is attached to the rear end of the lamp body 2B.

In the headlight 1, however, the projection 28a of the inner lens 28 is elastically contacted by the elastic contact piece 35 while being received by the recess 29a of the support member 29. Since the upper edge portion of 28 is attached to the reflecting portion 21 using the attaching members 36 and 36 having elasticity, the vibration transmitted to the inner lens 28 from the reflecting portion 21 is absorbed by the elastic contact piece 35 and the attaching members 36 and 36. It is possible to improve the vibration resistance of the inner lens 28 attached to the reflecting portion 21. When attaching the inner lens 28 to the reflecting portion 21, the protrusion 28 a of the inner lens 28 is inserted into the concave portion 29 a of the supporting member 29, and then the upper edge portion of the inner lens 28 and the front end portion of the reflecting portion 21 are attached. Since it is only necessary to sandwich the mounting members 36, 36, the mounting work is easy.

In the above embodiment, the support member 29 is used.
Is a member separate from the reflecting portion 21, but not limited to this,
The elastic contact piece 35 may be formed integrally with the reflecting portion 21. Further, in the above embodiment, the fitting hole 2 of the bottom surface portion 25 of the reflecting portion 21 is used.
6 shows an example in which the elastic contact piece 35 of the support member 29 fitted in 6 is elastically contacted with the protrusion 28a of the inner lens 28. It may be configured to elastically contact the protrusion 28a of the lens 28.

[0040]

As is apparent from the above description, according to the present invention, a protrusion is formed on the lower edge of the inner lens, and the protrusion is elastically contacted with the support provided on the reflecting mirror. Since the upper edge of the inner lens is attached to the reflecting mirror by the elastic attaching member, the vibration transmitted from the reflecting mirror to the inner lens can be absorbed by the supporting portion and the attaching member. The work of attaching to the mirror can be easily performed.

[Brief description of drawings]

FIG. 1 shows an example in which the present invention is applied to a vehicle headlight together with FIGS. 2 to 12, and is a front view.

FIG. 2 is a sectional view taken along line II-II in FIG.

FIG. 3 is an enlarged sectional view taken along line III-III in FIG.

FIG. 4 is an enlarged cross-sectional view taken along the line IV-IV of FIG.

FIG. 5 is an enlarged perspective view showing a mounting member for mounting an inner lens on a reflecting mirror.

6 is an enlarged cross-sectional view showing a VI portion shown in a circle of FIG. 3 in an enlarged manner.

FIG. 7 shows a reflecting mirror together with FIGS. 8 and 9, and is a front view.

FIG. 8 is a plan view.

9 is an enlarged cross-sectional view taken along the line IX-IX in FIG.

10A and 10B show an inner lens, FIG. 10A is a front view, and FIG. 10B is an enlarged cross-sectional view taken along the line BB of FIG.

11 is a perspective view showing a supporting member for supporting a protrusion formed on the lower edge of the inner lens, together with FIG. 12. FIG.

12A is a plan view, FIG. 12B is a front view, and FIG. 12C is a rear view.

FIG. 13 is a vertical sectional view showing an example of a conventional vehicle lamp.

[Explanation of symbols]

 1 Headlight (vehicle lamp) 2 Lamp body 19 Reflector 28 Inner lens 29 Supporting member (supporting part) 36 Mounting member 37 Lamp room 44 Light bulb (light source)

Claims (1)

[Claims] 1. A vehicle lamp having a reflector and an inner lens arranged in a lamp body, wherein a light source is arranged in a lamp chamber defined by the reflector and the inner lens. The reflecting mirror is provided with a supporting portion for elastically contacting and supporting the protrusion formed on the edge portion, and is formed of an elastic material for attaching the upper edge portion of the inner lens in contact with the reflecting mirror. A vehicle lamp having a mounting member.