JPH0327283Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a vehicular lamp. Specifically, the present invention relates to a vehicular lamp in which a bulb disposed within a reflector is surrounded by a cap.

[Conventional technology]

For example, as a conventional vehicle light,
There is a vehicle lamp described in Japanese Patent No. 3206, and the vehicle lamp will be described below with reference to FIGS. 5 and 6.

In the figure, 1 is a metal reflector, and this reflector 1 has a reflecting part 11 having a reflecting surface 10 in the form of a paraboloid of revolution, and a rising wall part 12 integrally provided in the center of the reflecting part 11. The bottom (or top) of the rising wall 12 is opened to provide a valve insertion hole 13, and the rising wall 12 is provided with a caulking tongue piece 14.

2 is a metal cap support ring, and this cap support ring 2 has a hollow thin cylindrical shape;
Valve insertion hole 2 with a small diameter circular hole at one end (upper end)
4 is opened, and an inner flange portion 20 is provided at the peripheral edge of the valve insertion hole 24. On the other hand, the other end (lower end) is opened, and a flange portion 21 is provided at the edge of the lower end opening. A caulking tongue piece 23 is provided on the body portion 22 of the cap support ring 2 in correspondence with the tongue piece 14 of the reflector 1.

3 is a synthetic resin cap; this cap 3
is colored in a predetermined color and has a hollow cylindrical shape with one end (upper end) closed in a dome shape and the other end (lower end) open. A flange portion 30 is provided at the edge of this lower end opening. The outer diameter of the cap 3 is smaller than the inner diameter of the inner flange 30 of the cap support ring 2. Further, the outer diameter of this flange portion 30 is larger than the inner diameter of the inner flange portion 20 of the cap support ring 2,
Moreover, it is smaller than the inner diameter of the body portion 22 of the cap support ring 2.

4 is a metal valve holder, and this valve holder 4 consists of a small diameter cylindrical part 40 and a large diameter cylindrical part 41. Tongue piece 400 for caulking on small diameter cylindrical part 40
are provided corresponding to the tongue piece 14 of the reflector 1 and the tongue piece 23 of the cap support ring 2. A bottomed cylindrical portion 402 is provided to protrude rearward from the annular portion 401 of the small diameter cylindrical portion 40, and a valve insertion hole 403 is provided at the bottom of the bottomed cylindrical portion 402. One end of a plate spring 42 is rotatably attached to the large diameter cylindrical portion 41, and an engagement hole 410 is provided at a location corresponding to the engagement portion 421 at the other end of the plate spring 42 of the large diameter cylindrical portion 41. A valve insertion hole 420 is provided in the middle portion of this plate spring 42.

5 is a valve, and this valve 5 is a filament 5
A glass tube 51 in which 0 is sealed, and a cap part 52 integrally provided rearward from the rear of this glass tube 51.
, a terminal 53 protruding rearward from the rear part of the base part 52 , and a flange part 54 integrally provided in the middle of the base part 52 .

Thus, the flange portion 30 of the cap 3 is placed on the annular portion 401 of the small diameter cylindrical portion 40 of the valve holder 4. Next, the cap support ring 2 is externally fitted onto the small diameter cylindrical portion 40 of the valve holder 4 from the cap 3 side, and the inner flange portion 20 of the cap support ring 2 is
is brought into contact with the flange portion 30 of the cap 3, and the flange portion 21 of the cap support ring 2 is brought into contact with the annular portion 411 of the large diameter cylindrical portion 41 of the valve holder 4.
and the tongue piece 400 of the valve holder 4,
The cap support ring 2, cap 3, and valve holder 4 are assembled once. The cap 3 of this assembly is inserted into the reflector 1 through the valve insertion hole 13 of the reflector 1, and the flange portion of the cap support ring 2 is brought into contact with the open end surface of the valve insertion hole 13 of the upright wall portion 12 of the reflector 1. Along with letting
The tongue piece 23 of the cap support ring 2, the tongue piece 400 of the valve holder 4, and the tongue piece 14 of the reflector 1 are made to face each other. Then, the reflector 1, the cap support ring 2, the tongue pieces 14, 2 of the valve holder 4.
Caulk 3,400. Then, the cap support ring 2 and the valve holder 4 are connected to the reflector 1.
The flange portion 30 of the cap 3 is clamped and fixed between the inner flange portion 20 of the cap support ring 2 and the annular portion 401 of the small diameter cylindrical portion 40 of the valve holder 4. Then, the glass bulb 51 of the bulb 5 is inserted into the cap 3 in the reflector 1 through the bulb insertion hole 403 of the bulb holder 4, and the flange portion 54 of the bulb 5 is inserted into the bulb holder 4.
is brought into contact with the bottom of the bottomed cylindrical portion 402. Then,
The plate spring 42 is inserted into its valve insertion hole 42.
0 through the terminal 53 of the valve 5 and the base part 52
and the engaging portion 421 of the plate spring 42 is engaged with the engaging hole 410 of the valve holder 4. Then, the flange portion 54 of the valve 5 is clamped and fixed between the bottom of the bottomed cylindrical portion 402 of the valve holder 4 and the plate spring 42, and as a result, the valve 5 is placed inside the reflector 1 and its periphery is covered with the cap 3. It is arranged so that it can be attached and removed in a closed state.

[Problem that the invention attempts to solve]

However, in the conventional vehicle lamp described above, the flange portion 30 of the synthetic resin cap 3 is placed between the inner flange portion 20 of the metal cap support ring 2 and the annular portion 401 of the metal bulb holder 4. Since they are clamped and fixed, the cap support ring 2 and the bulb holder 4 thermally expand and deform due to the lighting heat of the bulb 5, causing the inner flange portion 20 of the cap support ring 2 and the annular portion 40 of the bulb holder 4 to
The flange portion 30 of the cap 3 that is clamped and fixed between the There is a risk that play may occur in the clamping and fixing part with 401. Also, the flange portion 30 of the cap 3 is connected to the inner flange portion 20 of the cap support ring 2.
The reflector 1, the cap support ring 2, the tongue pieces 14, 23 of the valve holder 4,
400, the cap support ring 2 and valve holder 4 are assembled to the reflector 1, and the cap 3 is assembled to the reflector 1 at the same time. Cracks may occur in the portion 30.
Furthermore, since the cap 3 is once assembled to the cap support ring 2 and the valve holder 4, and then the cap 3 is assembled to the reflector 1 via the cap support ring 2 and the valve holder 4, the cap 3 is assembled to the cap support ring 2 and the valve holder 4.
It also requires a process for assembling the reflector and the valve holder 4, and a process for assembling these assemblies (cap 3, cap support ring 2, valve holder 4) to the reflector 1, resulting in problems such as a large number of assembly processes. .

The purpose of this invention is to prevent cracks from occurring in the flange portion of the cap, and to prevent play from occurring at the assembly portion of the cap.
Furthermore, it is an object of the present invention to provide a vehicular lamp that requires fewer assembly steps.

[Means for solving problems]

In this invention, an elastic member is interposed between the flange part of the cap and the periphery of the valve insertion hole of the reflector or the valve holder, and the flange part of the cap is pressed and fixed to the periphery of the valve holder or the valve insertion hole of the reflector. It is characterized by what it did.

[Effect]

This invention uses the elastic action of an elastic member interposed between the flange of the cap and the periphery of the bulb insertion hole of the reflector or the bulb holder to prevent the periphery of the bulb insertion hole of the reflector and the bulb holder from being affected by the heat of lighting the bulb. It can absorb thermal expansion and thermal deformation. Furthermore, it is possible to absorb the shock that occurs when the bulb holder is fixed to the reflector with the cap, elastic member, and bulb holder set on the reflector. Furthermore, due to the elastic action of the elastic member, the flange part of the cap can be directly pressed and fixed to the periphery of the bulb insertion hole of the reflector and assembled, or it can be pressed and fixed to a valve holder and then assembled to the reflector via the valve holder. can.

〔Example〕

Hereinafter, two examples of the vehicle lamp according to the present invention will be described with reference to FIGS. 1 to 4.

1 to 3 show a first embodiment of a vehicle lamp according to the present invention, in which FIG. 1 is a longitudinal sectional view, FIG. 2 is an exploded perspective view, and FIG. 3 is a longitudinal sectional view of an elastic member. It is.

In the figure, the same reference numerals as in FIGS. 5 and 6 indicate the same parts.

In the figure, reference numeral 15 denotes a boss portion integrally provided on both sides of the upright wall portion 12 on the outer surface of the reflector 1.

Reference numeral 6 denotes an elastic member, and this elastic member 6 is a so-called wave washer, in which peaks 60 and valleys 61 are alternately provided at equal intervals of 90° on a ring-shaped thin steel plate. As a result,
It has elastic force in the axial direction (arrow direction). The outer diameter of this elastic member 6 is the same as that of the body 22 of the cap support ring 2.
smaller than the inner diameter of

7 is a metal valve holder, and this valve holder 7 is provided with a valve insertion hole 71 in one end (upper end) surface of a hollow cylindrical portion 70. The other end (lower end) of the cylindrical portion 70 is opened, and a mounting piece 72 is integrally provided on the opening edge in a direction perpendicular to the axis of the cylindrical portion 70.
The insertion hole 7 of the mounting screw 73 is inserted into the mounting piece 72.
4, and mounting portions 76 and 77 of the mounting spring 8, which will be described later, are provided, respectively.

8 is the mounting spring, this mounting spring 8
is made by bending a steel wire, and includes a mounting part 80 formed by bending approximately the middle part into a U-shape, and the mounting part 80.
A pressing part 81 is formed by bending both ends of the two pressing parts 81 into a chevron shape in the same direction, and an engaging part 82 is formed by bending one end of the two pressing parts 81. The mounting part 80 of this mounting spring 8 is attached to the valve holder 7.
Attach it to the mounting part 76 of.

Thus, the cap support ring 2 is inserted into the bulb insertion hole 13 of the reflector 1, and the flange portion 21 of the cap support ring 2 is brought into contact with the edge of the bulb insertion hole 13 of the upright wall portion 12 of the reflector 1. Next, attach the cap 3 to the valve insertion hole 1 of the reflector 1.
3 and the valve insertion hole 2 of the cap support ring 2
4, and the flange portion 30 of the cap 3 is brought into contact with the inner flange portion 20 of the cap support ring 2. Subsequently, the elastic member 6 is inserted into the bulb insertion hole 13 of the reflector 1 and the body portion 22 of the cap support ring 2, and the elastic member 6 is brought into contact with the flange portion 30 of the cap 3. Then, the cylindrical part 70 of the valve holder 7 is inserted into the valve insertion hole 13 of the reflector 1 and the body part 22 of the cap support ring 2, and the cylindrical part 70 of the valve holder 7 is inserted into the elastic member 6.
At the same time, the mounting piece 72 of the valve holder 7 is brought into contact with the boss portion 15 of the reflector 1. Then, the valve holder 7 is fixed to the reflector 1 with the mounting screw 73. Then, due to the elastic action of the elastic member 6 interposed between the valve holder 7 and the flange portion 30 of the cap 3, the flange portion 30 of the cap 3 is moved against the cap support ring 2.
The flange portion 21 of the cap support ring 2 is press-fixed to the edge of the bulb insertion hole 13 of the reflector 1. As a result, the cap support ring 2, cap 3, elastic member 6, and valve holder 7 can be assembled and fixed in the valve insertion hole 13 of the reflector 1.

Since the vehicle lamp of the present invention in this embodiment has the above-described configuration, the glass bulb 51 of the bulb 5 is inserted into the cap 3 through the bulb insertion hole 71 of the bulb holder 7 and the ring-shaped elastic member 6. Then, the flange portion 54 of the valve 5 is brought into contact with the edge of the valve insertion hole 71 of the cylindrical portion 70 of the valve holder 7. Next, while pressing the pressing part 81 of the mounting spring 8 against the flange part 54 of the valve 5, the engaging part 82 of the mounting spring 8 is engaged with the engaging part 77 of the valve holder 7. The portion 54 is clamped and fixed between the edge of the valve insertion hole 71 of the cylindrical portion 70 of the valve holder 7 and the pressing portion 81 of the mounting spring 8, and as a result, the valve 5 is placed inside the reflector 1 and its circumference is covered with the cap 3. It is arranged so that it can be attached and detached in a closed state.

At this time, the flange portion 30 of the cap 3 is pressed and fixed to the inner flange portion 20 of the cap support ring 2 by the elastic action of the elastic member 6 interposed between the flange portion 30 of the cap 3 and the valve holder 7. Therefore, even if the reflector 1, cap support ring 2, and bulb holder 7 thermally expand or deform due to the heat of lighting the bulb 5, the elastic action of the elastic member 6 will cause the reflector 1, cap support ring 2, and bulb to Thermal expansion and thermal deformation of the holder 7 can be absorbed. Therefore, the flange portion 30 of the cap 3 which is pressed and fixed to the inner flange portion 20 of the cap support ring 2 by the elastic action of the elastic member 6
There is no risk of cracks occurring in the cap, and there is no risk of looseness occurring at the press-fixed portion between the inner flange portion 20 of the cap support ring 2 and the flange portion 30 of the cap 3. Furthermore, with the cap support ring 2, cap 3, elastic member 6, and valve holder 7 set on the reflector 1, the impact generated when the valve holder 7 is fixed to the reflector 1 is also absorbed by the elastic action of the elastic member 6. be able to. Therefore, there is no possibility that the flange portion 30 of the cap 3 will be cracked when the valve holder 7 is fixed to the reflector 1.

Further, the flange portion 30 of the cap 3 is pressed and fixed to the inner flange portion 20 of the cap support ring 2 by the elastic action of the elastic member 6, and the cap 3 is assembled to the reflector 1 via the cap support ring 2. The cap support ring 2, cap 3, elastic member 6, and valve holder 7 can be attached to the reflector 1 in just one step of assembling the valve holder 7, which has been set on the reflector 1 together with the cap support ring 2, cap 3, and elastic member 6. Can be assembled. Therefore, the number of assembling steps can be reduced compared to a conventional vehicular lamp which consists of a step of assembling the cap to the cap support ring and the bulb holder, and a step of assembling these assemblies to the reflector.

In the above-described embodiment, the cap support ring 2 is a separate part from the reflector 1, but when it is assembled to the reflector 1 together with the cap 3, elastic member 6, and valve holder 7, it becomes integrated with the reflector 1. It can be considered as 1.
At this time, the bulb insertion hole 24 of the cap support ring 2 is regarded as the bulb insertion hole of the reflector 1.

FIG. 4 is a sectional view showing a second embodiment of the vehicle lamp according to the present invention.

The vehicle lamp according to this embodiment does not include a cap support ring, and an inner upright wall portion 16 is integrally provided inwardly protruding from the upright wall portion 12 of the reflector 1. A small-diameter valve insertion hole 18 is provided in one end surface (upper end surface) of this inner upstanding upper wall portion 16 . The flange portion 30 of the cap 3 is brought into contact with the inner flange portion 19 of the peripheral portion of the small-diameter valve insertion hole 18, and the elastic member 6 is interposed between the flange portion 30 of the cap 3 and the valve holder 4. The bulb holder 4 is fixed to the reflector 1.

The vehicular lamp of the present invention in this embodiment can achieve the same effects as the vehicular lamp of the first embodiment described above, and can also reduce the number of parts because a cap support ring is not required. .

In the above embodiment, the elastic member 6 is interposed between the flange portion 30 of the cap 3 and the valve holder 7, and the flange portion 30 of the cap 3 is inserted into the periphery of the valve insertion hole 18 of the reflector 1. The elastic member 6 is pressed and fixed to the flange portion 19 (inner flange portion 20 at the peripheral edge of the valve insertion hole 24 of the cap support ring 2), but on the contrary, the elastic member 6 is fixed to the cap 3.
The flange portion of the cap 3 is interposed between the flange portion 30 of the reflector 1 and the inner flange portion 19 of the peripheral edge of the valve insertion hole 18 of the reflector 1 (or the inner flange portion 20 of the valve insertion hole 24 of the cap support ring 2). 30 may be press-fixed to the valve holder 7.

[Effect of idea]

As is clear from the above, the vehicle lamp of the present invention has an elastic member interposed between the flange of the cap and the periphery of the bulb insertion hole of the reflector or the bulb holder, and the flange of the cap is connected to the bulb holder or the bulb holder. Since it is press-fixed to the periphery of the reflector's bulb insertion hole, the bulb lighting heat is absorbed by the elastic action of the elastic member interposed between the flange of the cap and the periphery of the reflector's bulb insertion hole or the bulb holder. It is possible to absorb thermal expansion and thermal deformation of the periphery of the bulb insertion hole of the reflector and the bulb holder. Therefore,
Due to the elastic action of the elastic member, there is no risk of cracking the peripheral edge of the bulb insertion hole of the reflector or the flange of the cap that is press-fixed to the bulb holder. Furthermore, there is no risk of looseness occurring at the peripheral edge of the bulb insertion hole of the reflector or at the press-fixed portion between the bulb holder and the flange portion of the cap.
Furthermore, with the cap, elastic member, and bulb holder set on the reflector, the impact generated when the bulb holder is fixed to the reflector can be absorbed by the elastic action of the elastic member. Therefore, when fixing the valve holder to the reflector,
There is no risk of cracking on the flange of the cap. Furthermore, due to the elastic action of the elastic member, the flange part of the cap can be directly pressed and fixed to the periphery of the bulb insertion hole of the reflector and assembled, or it can be pressed and fixed to a valve holder and then assembled to the reflector via the valve holder. can. Therefore, the cap, elastic member, and valve holder can be assembled to the reflector by just one step of assembling the bulb holder set with the cap and elastic member to the reflector, and the step of assembling the cap to the cap support ring and the valve holder. The number of assembly steps can be reduced compared to conventional vehicular lamps, which include steps of assembling these assemblies to reflectors.

[Brief explanation of drawings]

1 to 3 show a first embodiment of a vehicle lamp according to the present invention, in which FIG. 1 is a longitudinal sectional view, FIG. 2 is an exploded perspective view, and FIG. 3 is a longitudinal sectional view of an elastic member. It is. FIG. 4 is a sectional view showing a second embodiment of the vehicle lamp according to the present invention. FIG. 5 is a sectional view showing a conventional vehicular lamp, and FIG. 6 is an exploded perspective view of the conventional vehicular lamp. 1...Reflector, 18...Valve insertion hole, 1
9...Inner flange part, 2...Cap support ring, 20...Inner flange part, 24...Valve insertion hole, 3...Cap, 30...Flange part, 5...
...Valve, 6...Elastic member, 7...Valve holder.

Claims (1)

[Scope of utility model registration request] a reflector having a valve insertion hole; a valve holder fixed to the reflector; and a valve disposed within the reflector via the valve holder;
In a vehicular lamp having a flange portion and a cap that covers the periphery of the bulb, an elastic member is interposed between the flange portion of the cap and the periphery of the bulb insertion hole of the reflector or the bulb holder. A vehicular lamp characterized in that the flange part of the cap is pressed and fixed to the peripheral part of the bulb insertion hole of the bulb holder or the reflector.