JP3136469B2 - Vehicle lighting - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a novel vehicular lamp. More specifically, in a vehicle lamp having a light source portion of a light bulb disposed in a synthetic resin lamp body and having a set spring for attaching the light bulb to the reflector in a state of being elastically contacted with the reflector from the back side thereof. And a technique for easily attaching a set spring to a reflecting mirror.

[0002]

2. Description of the Related Art In order to position a light source portion of a light bulb in a reflector through a bulb mounting hole formed in a reflector made of a synthetic resin, a vehicle configured to attach the light bulb to the reflector using a set spring. A lighting fixture is known from Japanese Utility Model Application Laid-Open No. 62-165601 and the like.

The reflector (A) of a vehicle lamp described in Japanese Utility Model Application Laid-Open No. 62-165601 has a set spring (B) for supporting a set spring (B) at a lip (1a) of a bulb mounting hole (1). An engaging portion (2) is formed.

[0004] A set spring (B) is attached to the engaging portion (2).
A fitting groove (2a) into which the engaging portion (B1) is fitted is formed, and a screw (4) is screwed in the vicinity of the fitting groove (2a).

[0005] The screw (4) is screwed into the engaging portion (2) via a washer (4b) so that the washer (b) covers a part of the fitting groove (2a). Has become.

Thus, the set spring (B) is in a state where the engaging portion (B1) is fitted in the fitting groove (2a).
By screwing the screw (4) to the engaging portion (2) via the washer (4b), the screw (4) can be attached to the back surface of the reflecting mirror (1) so as to be able to move up and down.

[0007]

However, when the set spring (B) is mounted on the reflecting mirror (A) as described above, the screw (4) must be an essential component for that purpose, and the number of parts must be reduced. With the increase, there has been a problem that the screwing step becomes indispensable and the assembling workability is poor.

Therefore, an object of the present invention is to make it possible to easily attach a set spring to a reflecting mirror.

[0009]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, a vehicular lamp according to the present invention has a light source portion of a light bulb disposed in a synthetic resin reflector through a light bulb mounting hole formed in the reflector. Equipped with a set spring for attaching the light bulb to the reflector in a state of being in elastic contact with the reflector from the back side,
The set spring is substantially U-shaped by a main portion and both arms projecting substantially perpendicular to the main portion. The set spring is supported by the support portion of the reflector and the back portion of the light bulb. And a hooked portion formed at at least one end of these long sides and hooked on a hook portion of the reflecting mirror, wherein the support portion includes a support member and the support member. A guide member having a space in which the main portion of the supported portion of the set spring is inserted between the support member and the support member as viewed in these arrangement directions, with the member interposed therebetween; A locking protrusion protruding from the side on which the guide members are arranged is formed, and the distance between the two guide members on the side remote from each other, that is, the distance between the outer surfaces is the distance between the two arms of the supported portion of the set spring. It has been made substantially equal to.

Therefore, in the vehicular lamp of the present invention, the mounting of the set spring to the reflecting mirror does not require a troublesome operation such as screwing, and the main part of the supported portion of the set spring is supported by the supporting member and the guide. The set spring can be supported by the reflector simply by being inserted between the members and hooking on the locking projections of the support member, so that the number of parts is reduced and the mounting workability is improved.

[0011]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a vehicular lamp according to an embodiment of the present invention.

FIGS. 1 to 7 show a first embodiment of a vehicular lamp according to the present invention.

Reference numeral 1 denotes a headlamp, and a lamp space 4 is defined by a container-shaped lamp body 2 opened forward and a front lens 3 covering the opening of the lamp body 2 from the front.

The lamp body 2 is formed of a synthetic resin, and has a concave portion 2a opened forward. A lens installation portion 5 for mounting the front lens 3 is formed on the front opening edge, and an installation groove 5a that opens forward is formed in the lens installation portion 5.

The rear wall 6 of the lamp body 2 is integrally formed with a cylindrical portion 7 projecting rearward.

The front lens 3 has a front portion 8 covering the front surface of the concave portion 2a of the lamp body 2 and a peripheral wall portion 9 protruding rearward from the periphery of the front portion 8 and is integrally formed of synthetic resin. Then, the rear end portion 10 of the peripheral wall portion 9 is fitted into the installation groove 5a of the lamp body 2 via the sealant 11, and in that state, the clips 12, 12,...
reference. ), The rear end portion 10 of the peripheral wall portion 9 and the installation portion 5 are sandwiched from the side, so that the front lens 3 is connected to the lamp body 2.
Fixed to

Reference numeral 13 denotes a reflecting mirror made of synthetic resin. Although not shown, the reflecting mirror 13 is supported by the lamp body 2 so as to be tiltable up and down and left and right in the lamp space 4 by an aiming mechanism (not shown).

The reflecting mirror 13 is formed by integrally forming an effective reflecting portion 14a having a predetermined reflecting surface and a side portion 14b protruding forward from the periphery of the effective reflecting portion 14a. As shown in FIG. 3, a tube portion 15 projects rearward substantially at the center of the rear end portion of the effective reflection portion 14a, and a bulb mounting hole 16 is formed in the tube portion 15. (See FIG. 1).

From the inner peripheral surface of the cylindrical portion 15 to the inner flange 17
The inside of the inner flange 17 is a bulb insertion hole 18, and the rear surface 19 of the inner flange 17 is a positioning surface for positioning the bulb in the optical axis direction described later.

Positioning notches 20 and 2 reaching the rear end are provided on the inner surface of a portion of the cylindrical portion 15 behind the inner flange 17.
0 and 20 are formed, whereby positioning in the direction around the optical axis of the electric bulb described later is performed.

The set spring 21 is formed of a wire spring material, and has a supported portion 22, two long sides 23, 23, and a hooked portion 2 connected to the tip of each of the long sides 23, 23.
4 and 24 are integrally formed.

The supported portion 22 is positioned substantially perpendicularly to the optical axis (extending substantially in the front-rear direction) of the reflecting mirror 13, and the main portion 22a and the main portion 22a from both ends of the main portion 22a.
The two arms 22b, 22b extending substantially at right angles to each other and parallel to each other are formed to have a substantially U-shape when viewed from the front-back direction.

The long sides 23, 23 are the arms 2 of the supported part 22.
2b and 22b extend in parallel with each other when viewed from the front-back direction, form a substantially rectangular shape when viewed from the side, and each long side portion 23 extends obliquely forward from the tip of the arm portion 22b of the supported portion 22. It comprises a first node 23a and a second node 23b extending obliquely rearward from the tip of the first node 23a, and a joint 23c between the first node 23a and the second node 23b is a flange of a light bulb to be described later. It is a pressing portion for pressing.

The hooked portions 24, 24 are connected to the distal ends of the second nodes 23b, 23b of the long sides 23, 23, respectively. Each hooked portion 24 includes a base piece 24 a extending substantially forward from the tip of the second node 23 b of the long side portion 23, a hook piece 24 b connected to the front end of the base piece 24 a and extending away from the long side portion 23. Consists of

The supporting portion 25 for supporting the supported portion 22 of the set spring 21 is formed in a portion of the cylindrical portion 15 of the reflecting mirror 13 which is partially cut off at a lower side. A prismatic support member 26 projects rearward from a position slightly away from the bulb insertion hole 18 on a plane 25a located in the same plane as the positioning surface 19. A locking projection 27 is formed on a surface of the support member 26 on the side of the bulb insertion hole 18. The locking projection 27 has a locking surface 27a facing forward, and a surface 27b behind the locking surface 27a is an inclined surface that is inclined so as to move away from the bulb insertion hole 18 as it goes rearward. ing. When viewed from the side, the distance between the locking surface 27a and the surface 25a in the same plane as the positioning surface 19 is slightly larger than the wire diameter of the main portion 22a of the supported portion 22 of the set spring 21. Have been.

Guide members 28, 28 project rearward at positions substantially on both sides of the support member 26 in a surface 25a which is in the same plane as the positioning surface 19. The position of the guide members 28 is determined by the position of the guide member 2 when viewed from the side.
Surfaces 28a, 28a located on the support member 26 side of 8, 28
The distance between the support member 26 and the surface of the support member 26 facing the bulb insertion hole 18 is the main portion 22 of the supported portion 22 of the set spring 21.
Therefore, the distance between the surfaces 28a, 28a and the tip of the locking projection 27 when viewed from the side is the same as that of the supported portion 22 of the set spring 21. The diameter is smaller than the diameter of the main portion 22a. Also,
The surfaces of the guide members 28, 28 located on opposite sides, that is, the space between the outer surfaces 28b, 28b are formed to be substantially the same as or slightly smaller than the space between the arms 22b, 22b of the supported portion 22 of the set spring 21. Have been. In addition, the guide member 2
The surfaces 28a, 28a of the support members 26, 8 on the side of the support member 26 and the outer side surfaces 28b, 28b form a substantially right angle.

The surfaces 28c, 28c of the guide members 28, 28 on the side of the bulb insertion hole 18 are formed as curved surfaces as viewed from the rear, and form a part of the inner surface of the bulb mounting hole 16.

The corners formed by the rear end surfaces of the guide members 28 and each side surface are chamfered.

Of the walls forming the cylindrical portion 15, the ends facing the outer surfaces 28b, 28b of the guide members 28, 28 extend outward from the ends facing the outer surfaces 28b, 28b.
b, the wall portions 29, 29 which are parallel to b are projected, and the wall portions 29, 29 and the outer side surfaces 28b of the guide members 28, 28,
Guide grooves 30 having a width substantially equal to or slightly larger than the wire diameter of the arms 22b of the supported portion 22 of the set spring 21 are formed between the guide grooves 30 and 28b.

A notch 31 is formed in a portion of the inner flange 17 and the flat surface 25a corresponding to the front of the locking surface 27a of the locking protrusion 27 of the support member 26, and the notch 31 is formed by the locking protrusion 27. Of the mold for forming the locking surface 27a.

Thus, the set spring 21 is supported by such a supporting portion 25 as follows.

The arm portions 22b, 22b of the supported portion 22 of the set spring 21 are inserted into the guide grooves 30, 30, respectively.
The main portion 22a is inserted between the support member 26 and the guide members 28, 28 from behind. During this time, the main portion 22a slides on the inclined surface 27b of the locking projection 27 and is brought closer to the guide members 28,28. The tip of the locking projection 27 and the surface 28 of the guide members 28, 28 on the support member 26 side
a, 28a are smaller than the wire diameter of the main part 22a when viewed from the side, so that the main part 22a
The center part of the main part 22a is bent upward by the inclined surface 27b.
You can pass the front of the front. The central portion of the main portion 22a is where the locking projection 27 has passed the front end to the front,
The bent main portion 22a returns to its original position, and the central portion of the main portion 22a is located on the front side of the locking surface 27a of the locking projection 27, whereby the main portion 22a is separated from the support member 26 and the guide member 2
8, 28;
The support portion 25 is supported by the main portion 22a so as to be rotatable around the main portion 22a.

With the set spring 21 supported in this manner, the corners formed by the surfaces 28a, 28a of the guide members 28, 28 on the support member 26 side and the outer surfaces 28b, 28b are the supported portions of the set spring 21. 22 comes close to or slightly in contact with the inside of the corner formed by the main part 22a and the arms 22b, 22b.
A play is prevented in the arrangement direction of 8, 8, that is, in the left-right direction. For example, hook pieces 24 b, 24
It is easy to perform the operation of hooking b, and the effect of stabilizing the state in which the bulb described later is attached to the reflector 13 is exhibited.

Further, since the guide grooves 30, 30 are formed on both right and left sides of the support portion 25, the guide grooves 30, 30 are formed.
The main portion 22a may be inserted between the support member 26 and the guide members 28, 28 while guiding the arm portions 22b, 22b to the arm members 22b, and the operation of supporting the set spring 21 on the support portion 25 is extremely easy. .

Further, since the guide members 28, 28 have a columnar shape and are formed integrally with the reflecting mirror 13, the structure is simple and the manufacturing can be performed at low cost.

Further, since the die-cutting holes 31 are formed at corresponding positions on the front side of the locking surface 27a of the locking projection 27, a mold portion for forming the locking surface 27a is formed by the original metal mold. It is possible to pull out the mold in the forward direction, which is the direction in which the mold is pulled out.
It is not necessary to use a slide mold for forming a, and the mold can be formed at low cost, and the molding process is simplified, which contributes to cost reduction.

The hook portions 32, 32 are provided on the cylindrical portion 15 of the reflecting mirror 13.
It is formed in a portion located above. Hooks 32, 32
Are formed side by side so as to be located on both sides of the positioning notch 20 located on the upper side, and are formed symmetrically left and right. One of them will be described in detail.

The hook portion 32 has a substantially L-shaped projection 33 viewed from above so as to face a wall 20 a defining the side of the positioning notch 20. The projection 33 extends rearward from a plane in the same plane as the positioning surface 19. It is formed by projecting toward. As a result, an engagement notch 34 having a substantially L-shape as viewed from above is formed, and the engagement notch 34 is formed with an introduction portion 34a extending in the front-rear direction and an engagement extending laterally from the front end of the introduction portion 34a. A portion 34b. A rear surface 33 of a portion 33a of the protrusion 33 protruding toward the wall 20a.
b is formed on an inclined surface that is displaced forward as it approaches the wall 20a. The front surface 33c of the portion 33a is a locking surface that is displaced rearward as the distance from the wall 20a increases. The locking surface 33c is formed so that a rearmost portion 33d (hereinafter, referred to as a "rear portion") is located slightly behind the positioning surface 19.

The reflecting mirror 13 has at least the projection 3
The portion corresponding to the front side of the third portion 33a is provided with a punching hole 35 reaching the inner surface. Thereby, the protrusion 3
The third portion 33a can be formed without using a slide mold.

To mount a light bulb on the reflector 13,
Do the following:

Reference numeral 36 denotes a light bulb, which comprises a glass bulb 38 in which a filament 37 is sealed and supported by a base 39.
A positioning flange 40 is formed on the base 39, and a positioning protrusion 41 is formed from an outer peripheral edge of the positioning flange 40.
41, 41 are protrudingly provided.

Thus, the glass bulb 38 passes through the bulb insertion hole 18 from the rear of the reflector 13 so that the bulb 1
3 and the positioning projections 41, 41,
41 is a positioning notch 20 formed on the inner surface of the cylindrical portion 15;
The positioning flange 40 abuts on the positioning surface 19 of the reflecting mirror 13 by being engaged with 20, 20. Thereby, the light bulb 36 is positioned with respect to the reflecting mirror 13. That is, the positioning flange 40 abuts on the positioning surface 19 to perform positioning in the optical axis direction. Positioning in the direction is performed.

Then, the set spring 21 is rotated upward. Then, the long side 2 of the set spring 21
The joints 23c of the bulbs 3 and 23 come into contact with the rear surface of the positioning flange 40 of the bulb 36. Therefore, the long side 23,
The hooked parts 24, 24 are pushed forward while bending 23, and the hook pieces 24b, 24b are introduced into the introduction portions 34a, 34a of the engagement notches 34, 34 of the hooks 32, 32. The space between the hook pieces 24b, 24b is
c, 33c, corresponding to the depths 33d, 33d, the hooking pieces 24b, 24b
3 are bent so that the ends thereof approach each other, so that the inclined surfaces 33b, 33 of the projection 33 approach each other.
b, and is inserted into the introduction portions 34a, 34a. Then, the hook pieces 24b, 24b are
4b, the rebound force due to the long sides 23, 23 being bent causes the hook pieces 24
b, 24b move away from each other, and except for the force pressing the hooked parts 24, 24 forward, the elastic force stored by bending the long sides 23, 23 As a result, the hooking pieces 24b, 24b move rearward, and the locking surfaces 33c, 33c of the hooking portions 32, 32, 3
Engage with 3d, 33d. Even in this state, the long side portions 23 of the set spring 21 are in a state in which the tips thereof are bent forward so that the knot portions 23 are provided.
c and 23c press the positioning flange 40 of the bulb 36 forward, whereby the positioning flange 40 firmly abuts the positioning surface 19 of the reflector 13 and the bulb 36 is securely supported by the reflector 13. Become.

As described above, the two long sides 23,
When a set spring 21 having hooked portions 24, 24 at the distal end of 23 is used, and these two hooked portions 24, 24 are engaged with the respective hooks 32, 32, the positioning flange of the light bulb 36 is formed. The force is evenly applied to the left and right 40,
The state of attachment of the bulb 36 to the reflector 13 is stabilized. However, even if the hooked portion 24 is provided only at the tip of the one long side portion 23, there is no problem in mounting the light bulb 36.

It should be noted that the above-described punched holes 35, 35 not only contribute to the punching during molding, but also the punched holes 35, 3
5, the engagement surfaces 33c, 3c of the hooks 32, 32
3c, the locking pieces 24b, 24b of the set spring 21 can be locked to the locking surface 33 even if the locking pieces 24b, 24b
c, 33c, so that the bending of the long sides 23, 23 of the set spring 21 is increased, and the positioning flange 40 of the electric bulb 36 is attached to the positioning surface 19 of the reflector 13 with a stronger force. You can push.

FIG. 8 shows a vehicle lamp according to a second embodiment of the present invention.

The second embodiment is the same as the first embodiment except that the supporting portion and the hooking portion are different from those in the first embodiment. Therefore, the different portions are described in detail. The same reference numerals as in the first embodiment denote the same parts as in the first embodiment, and a description thereof will be omitted.

At substantially the center of the rear end of the reflecting mirror 13A, a tube portion 42 is provided so as to project rearward, and a light bulb mounting hole 43 is formed in the tube portion 42. And the cylindrical portion 4
An inner flange (not shown) similar to that of the first embodiment is protruded from the inner peripheral surface of the light emitting element 2, and the inside of the inner flange is a light bulb insertion hole.
Are positioned in the optical axis direction.

Positioning notches 44, 44, reaching the rear end on the inner surface of the portion behind the inner flange of the cylindrical portion 42,
44 are formed, whereby the electric bulb 36 is positioned in the direction around the optical axis.

The lower portion of the cylindrical portion 42 is further extended downward, and the extended portion 45 is provided with the supported portion 2 of the set spring 21.
The support part 46 which supports 2 is formed.

A support member 47 having a columnar shape at a substantially central portion in the left-right direction at a position below the rear surface of the extension portion 45.
Is projected rearward. A locking projection 48 is formed on the surface of the support member 47 on the side of the bulb mounting hole 43, that is, on the upper surface. The locking projection 48 has a locking surface 48 facing forward.
a, and a surface 48b rearward from the locking surface 48a is an inclined surface that is inclined away from the bulb mounting hole 43 toward the rear. The distance between the rear surface of the extension portion 45 and the locking surface 48a when viewed from the side is equal to or slightly larger than the wire diameter of the main portion 22a of the supported portion 22 of the set spring 21.

The supporting member 47 on the rear surface of the extension 45
And guide members 49, 49 projecting rearward at positions slightly closer to the bulb mounting hole 43 side. More specifically, the positions of the guide members 49, 49 are determined by the surfaces 49a, 49a of the guide members 49, 49 located on the support member 47 side and the support member 4 when viewed from the side.
7 is slightly larger than the wire diameter of the main portion 22a of the supported portion 22 of the set spring 21.
The distance from the side between the end portions 9a and 49a and the tip of the locking projection 48 is the main portion 2 of the supported portion 22 of the set spring 21.
2a is smaller than the wire diameter. Also, the guide member 4
9, 49 opposite surfaces, ie the outer surface 4
The interval between 9b and 49b is substantially the same as or slightly smaller than the interval between the arms 22b and 22b of the supported portion 22 of the set spring 21. In addition, the surfaces 49a, 49a of the guide members 49, 49 on the support member 47 side and the outer surface 49b,
It forms a substantially right angle with 49b.

The extension portion 45 includes a portion corresponding to the front of the locking surface 48a of the locking projection 48 of the support member 47, from which it reaches the bulb mounting hole 43 and the bulb insertion hole (not shown), and is provided with the reflecting mirror 13A. A notch 50 is formed on the inner surface, and the notch 50 serves as a die-cutting hole for forming a locking surface 48 a of the locking projection 48.

Thus, the set spring 21 is supported by such a supporting portion 46 as follows.

The arms 22 b of the supported portion 22 of the set spring 21 are connected to the outer surfaces 49 of the guide members 49.
b, 49b with the main portion 22
a is inserted between the support member 47 and the guide members 49, 49 from behind. During this time, the main portion 22a slides on the inclined surface 48b of the locking projection 48, and
It is approached to 9, 49 side. The tip of the locking projection 48 and the surfaces 49a, 49 of the guide members 49, 49 on the support member 47 side.
a in the state viewed from the side between the main part 22a
The main portion 22a is bent upward by the central portion thereof being pressed against the inclined surface 48b, so that the central portion of the main portion 22a has the front end of the locking projection 48 on the front side. You can pass through. At the center of the main portion 22a, the bent main portion 22a returns to its original position when the locking projection 48 has passed the front end to the front end. , Whereby the main portion 22a is connected to the support member 47 and the guide members 49, 49.
In a state where the support portion 4
6 is a state where the main part 22a is supported so as to be rotatable around the center of rotation.

With the set spring 21 thus supported, the corners formed by the surfaces 49a, 49a of the guide members 49, 49 on the support member 47 side and the outer surfaces 49b, 49b are the supported portions of the set spring 21. Since the main part 22a and the arm parts 22b, 22b of the set 22 are in close or light contact with each other, the guide member 4 of the set spring 21
The backlash is prevented in the arrangement direction of 9 and 49, that is, in the left-right direction. For example, the hook pieces 24b and 24
The effect of easily performing the operation of hooking b and stabilizing the state in which the bulb 36 is attached to the reflecting mirror 13 is exhibited.

The hooks 51, 51 are formed on the opposite side of the support 46 with respect to the bulb mounting hole 43, that is, on the upper part of the tube 42. Two engaging notches 52, 52 for communicating the inside and the outside of the cylindrical portion 42 are formed in a wall portion forming the cylindrical portion 42. When viewed from above, one of the engagement notches 52 has a substantially L-shape, and the other has a substantially inverted L-shape. That is, the engagement notches 52, 52 are opened at the rear end and extend substantially in the front-rear direction.
a, 52a, 52a extending laterally from the front end of 52a
b, and the rear surfaces of the engaging portions 52b, 52b, ie, the locking surfaces 52c, 52c, are inclined so as to be displaced rearward as they move away from the introduction portions 52a, 52a.

Further, the introduction portions 52 of the engagement notches 52, 52 are provided.
Projections 53, 53 slightly projecting rearward are formed at the opening edges located on the opposite sides of the projections 53a, 52a.
The side surfaces 53a, 53a, including the introduction portions 52a, 52a, which are located on opposite sides of each other, are inclined surfaces that are inclined so as to move away from each other as going backward.

Thus, the glass bulb 38 of the light bulb 36 is inserted into the inside of the reflecting mirror 13A from behind the reflecting mirror 13A through a not-shown light bulb insertion hole, and the positioning projections 41, 4 are provided.
1, 41 are positioning notches 4 formed on the inner surface of the cylindrical portion 42.
4, 44, 44 and the positioning flange 4
0 is brought into contact with a positioning surface (not shown) of the reflecting mirror 13A.

Thus, the bulb 36 is connected to the reflecting mirror 13A.
The set spring 21 is rotated upward in a state where it is positioned with respect to. Then, the nodes 23c, 23c of the long sides 23, 23 of the set spring 21 abut on the rear surface of the positioning flange 40 of the bulb 36. Then, the side of the hooked portions 24, 24 is pushed forward while bending the long sides 23, 23, and the hooking pieces 24b, 24b are pulled into the hooking portions 51, 5, 5.
The first engagement notches 52, 52 are introduced into the introduction portions 52a, 52a. The interval between the hooking pieces 24b, 24b corresponds to the depths 52d, 52d of the locking surfaces 52c, 52c, but the hooking pieces 24b, 24b
3 and 23 are bent so that the ends thereof approach each other, so that the inclined surfaces 53a, 53a approach each other.
To be inserted into the introduction portions 52a, 52a.
Then, the hook pieces 24b, 24b are engaged with the engaging portions 52b, 52b.
When the position corresponding to is reached, the rebound force due to the long sides 23, 23 being bent causes the hook pieces 24b,
24b move away from each other, and except for the force pressing the hooked portions 24, 24 forward, the hooking is carried out by the elastic force stored by bending the long sides 23, 23. The pieces 24b, 24b move rearward, and the locking surfaces 52c of the hooks 51, 51, 52d,
52d. Even in this state, set spring 2
Since the long sides 23 of the 1 are bent so that their tips go forward, their long sides 23, 23
3c presses the positioning flange 40 of the bulb 36 forward, whereby the positioning flange 40
A firmly contacts the positioning surface (not shown)
6 is reliably supported by the reflecting mirror 13A.

[0061]

As apparent from the above description, the vehicle lamp of the present invention has a light source portion of a light bulb disposed in a synthetic resin reflector through a light bulb mounting hole formed in the reflector. A set spring is provided for attaching the bulb to the reflector while being in elastic contact with the reflector from the rear side. The set spring is substantially coaxial with the main part and the both arms protruding substantially perpendicular to the main part. A long-side portion that is shaped like a letter and is supported by the support portion of the reflector, and two long sides that press the rear portion of the bulb forward; A hook portion to be hooked on the hook portion, wherein the support portion is located on both sides of the support member and the support member, and is set between the support member when viewed in the arrangement direction thereof. Having a space into which the main part of the supported part is inserted And a member, the locking projection which projects on the side of the guide member are arranged is formed in the support member, 2
The distance between the side surfaces of the two guide members on the far side, that is, the outer surface, is substantially equal to the distance between the two arms of the set spring supported portion.

Therefore, in the vehicular lamp of the present invention, the mounting of the set spring to the reflector does not require a complicated operation such as screwing, and the main part of the supported portion of the set spring is supported by the supporting member and the guide. The set spring can be supported by the reflector simply by being inserted between the members and hooking on the locking projections of the support member, so that the number of parts is reduced and the mounting workability is improved.

It should be noted that the specific shapes and structures of the respective parts shown in each of the above-described embodiments are merely examples of the embodiment when the present invention is implemented, and the technical features of the present invention are not limited thereto. The scope should not be construed as limiting.

[Brief description of the drawings]

FIG. 1 shows a first embodiment of a vehicular lamp according to the present invention together with FIGS. 2 to 7, which is a longitudinal sectional side view.

FIG. 2 is an enlarged rear view of a main part.

FIG. 3 is an enlarged rear view of a main part of the reflecting mirror.

FIG. 4 is an enlarged sectional view taken along the line IV-IV in FIG. 3;

FIG. 5 is an enlarged sectional view taken along line VV in FIG. 3;

FIG. 6 is an enlarged perspective view of a set spring.

FIG. 7 is an enlarged perspective view of a main part showing a state where a light bulb is attached.

FIG. 8 is an enlarged perspective view of a main part of a vehicle lamp according to a second embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Headlight (vehicle lamp), 13 ... Reflector, 16 ... Bulb mounting hole, 19 ... Positioning surface, 21 ... Set spring,
22 ... supported part, 22a ... main part, 22b ... arm part, 23 ...
Long side portion, 24: hooked portion, 25: support portion, 26: support member, 27: locking projection, 28: guide member, 28a: surface on the support member side, 28b: outside surface, 29: wall portion, Reference numeral 30: guide groove, 31: hole for punching, 32: hook portion, 35: punching hole (space), 36: bulb, 37: filament (light source), 40: positioning flange (flange), 13A ...
Reflector 43, bulb mounting hole, 46 support, 47 support member, 47 support member, 48 locking projection, 49 guide member, 49a support member side surface, 49b outer surface, 50
… Notch (hole for die cutting), 51… Hook

Continuation of front page (58) Field surveyed (Int.Cl. ⁷ , DB name) F21S 8/10 F21V 19/00

Claims (7)

(57) [Claims] 1. A light source section of a light bulb is disposed in a synthetic resin reflecting mirror through a light bulb mounting hole formed in the reflecting mirror, and the light bulb is attached to the reflecting mirror in a state of being elastically contacted with the reflecting mirror from the back side. The set spring has a substantially U-shape by a main part and both arms projecting substantially perpendicular to the main part, and is supported by the support part of the reflector. And two long sides for pressing the rear part of the light bulb forward, and a hooked portion formed at at least one end of these long sides and hooked on a hook of the reflector. A guide member having a space in which the main part of the supported portion of the set spring is inserted between the support member and the support member, which are located on both sides of the support member and viewed in the arrangement direction thereof. The support member projects to the side where the guide members are arranged. A locking projection is formed, and the distance between the two guide members on the side remote from each other, that is, the distance between the outer surfaces is substantially equal to the distance between both arms of the supported portion of the set spring. Vehicle lighting. 2. The space between the support member and the guide member as viewed in the direction in which the guide members are arranged is slightly larger than the wire diameter of the main part of the supported portion of the set spring, and as viewed in the direction in which the guide members are arranged. 2. The vehicular lamp according to claim 1, wherein the distance between the tip of the locking projection and the guide member is smaller than the wire diameter of the main part of the supported part of the set spring. 3. A die-cutting hole formed in a portion corresponding to the locking projection as viewed in the front-rear direction and penetrating through an inner surface side of the reflecting mirror. A vehicle lighting device according to claim 1. 4. The guide member has a columnar shape, and an outer surface thereof and a surface of the support member adjacent thereto intersect at a substantially right angle, and the corner that forms the substantially right angle is a main portion of the supported portion of the set spring. And near or lightly contact the inside of the part where both arms intersect,
4. The vehicular lamp according to claim 1, wherein the set spring is restricted from moving in the direction in which the main part of the supported part extends. 5. A wall is formed near the outer surface of the guide member, and a guide groove is formed between the wall and the outer surface of the guide member, into which the arm of the supported portion of the set spring is inserted. The vehicular lamp according to claim 4, wherein: 6. A hook portion to be hooked on each hook portion is formed at a tip of each of two long side portions. The vehicle lamp according to claim 4 or claim 5. 7. A flange is formed on the light bulb, a positioning surface for positioning the flange is formed on the reflecting mirror, and a hooked portion is provided in front of the hooking portion for hooking the hooked portion of the set spring. A space is formed for allowing movement forward of the positioning surface, wherein the space is formed.
Or the vehicle lighting device according to claim 6.