JPH0617023U - Vehicle lighting - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a vehicular lamp that enables the use of a bulb holder made of a non-conductive material. [Structure] Valve insertion hole 2 provided in reflector 20
A tubular valve holder 40 is fitted and fixed to 1A, and a locking portion 42 projecting toward the inner peripheral side of the valve holder 40 is formed at a protruding portion of the valve holder 40 to the reflector 20, and the valve holder 40 is inserted therethrough. The light emitting portion 31 of the bulb 30 is disposed inside the reflector 20, and the collar portion 33 integrally provided on the conductive mouthpiece 32 of the bulb 30 is pressed against the locking portion 42 by the spring member 50 held by the bulb holder 40. In the fixed vehicular lamp, the spring member 50 is formed of a conductive material, and the spring member 50 is provided with the terminal 51 for connecting the electric wiring, whereby the base 32 of the bulb 30 is provided.
Is electrically connected to the power source through the spring member 50.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a vehicular lamp that is used when the vehicle is running at night.

[0002]

[Prior art]

 As this type of vehicle lamp, for example, as shown in FIG. 3, a bulb 110 that emits light, a reflector 120 that reflects light from the bulb 110, and a tube fixed to a bulb insertion hole 121 of the reflector 120 are provided. Shaped valve holder 130 made of a conductive material, a housing 140 accommodating the valve 110 and the reflector 120, a spring 150 mounted in the valve holder 130 and pressing the valve 110 against the valve holder 130, and a terminal 160 for power distribution. Some have and.

The housing 140 includes a housing body 141 that houses the bulb 110 and the reflector 120, and a cap portion 142 that can be attached to and detached from the bulb insertion hole 141 a of the housing body 141. The thickness from the housing body 141 to the cap portion 142 is b.

The bulb 110 of the vehicular lamp includes a light emitting portion 111 having a filament (not shown) provided in a hollow glass member, and a bulb body attached to the light emitting portion 111 for energizing the filament. The valve body 112 includes a portion (base) 112 and a collar portion 113 which is integrally provided on the valve body portion 112 and is made of a conductive material.

An inner flange 131 is formed in a portion of the valve holder 130 protruding into the reflector 120, and a valve insertion hole 132 is formed in the inner flange 131.

The valve body portion 112 and the collar portion 113 of the bulb 110 are attached to a filament (not shown) in the light emitting portion 111 and grounded. Further, a lead wire (not shown) attached to a filament (not shown) and connected to the positive voltage side is provided at the bottom of the valve body 112.

A terminal 133 for connecting the terminal 160 connected to the ground is integrally provided on the outside of the valve holder 130 and is oriented in the longitudinal direction of the valve 110. As a result, the flange 113 of the valve 110 is connected to the ground via the valve holder 130, the terminal 133, and the terminal 160.

[0008]

[Problems to be solved by the device]

 By the way, in the vehicular lamp as shown in FIG. 3, the bulb holder 130 must be made of a conductive material such as metal in order to make a connection on the ground side. For this reason, the valve holder 130 becomes heavy, and the structure for attaching the valve holder 130 to the reflector 120 needs to be strong.

When the valve holder 130 is made of metal, the valve holder 130 needs to be surface-treated in order to prevent rust and the like. Therefore, the manufacturing cost of the valve holder 130 increases.

An object of the present invention is to eliminate the above drawbacks and to provide a vehicular lamp capable of using a bulb holder made of a non-conductive material.

[0011]

[Means for Solving the Problems]

 In order to achieve the object, the present invention has a cylindrical valve holder fitted and fixed in a valve insertion hole provided in a reflector, and a projection portion of the valve holder protruding toward the reflector, which protrudes toward an inner peripheral side of the valve holder. A stopper is formed, the light-emitting part of the bulb inserted through the bulb holder is arranged in the reflector, and the collar part integrated with the conductive mouthpiece of the bulb is engaged by the spring member held by the bulb holder. In vehicle lighting fixtures that are pressed and fixed to the stopper, the spring member is made of a conductive material and the spring member is provided with a terminal for connecting electrical wiring, so that the bulb cap is electrically connected to the power source through the spring member. I am trying to get it done.

[0012]

[Action]

 With such a configuration, the flange portion of the valve housed in the valve holder is pressed and fixed to the locking portion of the valve holder by the spring member. Since the spring member is made of a conductive material, this pressing keeps the flange of the valve in electrical contact with the spring member. Further, the spring member is provided with a terminal for electric wiring.

As a result, the electrical connection for light emission of the bulb is made via the flange of the bulb, the spring member, and the terminal.

[0014]

【Example】

 Next, an embodiment of this invention will be described with reference to the drawings.

[First Embodiment] FIG. 1 is a view showing a first embodiment of the present invention.

This vehicular lamp includes a housing 10, a reflector 20, a bulb 30, a valve holder 40, a spring 50 as a spring member, and a terminal 60.

The housing 10 is for protecting the bulb 30 and the reflector 20 from external moisture and the like. The housing 10 accommodates the reflector 20 and the valve 30 therein, and includes a housing body 11 having a valve insertion hole 11A for attaching and detaching the valve 30 and the like, and a cap portion 12 for covering the valve insertion hole 11A of the housing body 11. And an O-ring 13 that seals between the housing body 11 and the cap portion 12 when the cap portion 12 is attached to the housing body 11.

The reflector 20 is mounted in the housing and reflects the light from the bulb 30. The reflector 20 is provided with a reflecting portion 21 that reflects light and has a valve insertion hole 21A in the center thereof, and a wall portion 22 provided in the valve insertion hole 21A for fixing the valve holder 40. There is.

In order to rotatably hold the spring 50, the wall portion 22 of the reflector 20 is provided with a groove portion 23 having a width substantially equal to the diameter of the spring 50.

The valve holder 40 is for holding the valve 30. The valve holder 40 includes a tubular portion 41 having a tubular shape, an inner flange 42 provided at a protruding portion of the tubular portion 41 into the reflector 20, and a protruding portion of the tubular portion 41 to the outside of the reflector 20. And outer flanges 43, 44 provided for the minute portion. A valve insertion hole 42A is provided in the inner flange 42 of the tubular portion 41.

The tubular portion 41 of the valve holder 40 is provided with a hook portion 45 that is bent outward in order to fix the valve holder 40 to the wall portion 22 of the reflector 20.

The outer flange 43 of the valve holder 40 is sized to cover the groove portion 23 of the reflector 20 when the valve holder 40 is fixed to the wall portion of the reflector 20 by the hook portion 45.

The outer flange 44 of the valve holder 40 is provided with a hook portion 46 on which the spring 50 is hooked.

The bulb 30 emits light when a voltage is applied, and examples of the bulb 30 include an H1 bulb and an H3 bulb. The bulb 30 includes a light emitting portion 31 having a filament (not shown) therein, a valve body portion 32 attached to the light emitting portion 31 and made of a conductive material, and an integral part of the valve body portion 32. It is provided with the collar part 33 provided.

The valve body portion 32 and the collar portion 33 of the bulb 30 are portions that are attached to a filament (not shown) in the light emitting portion 31 and are grounded. A lead wire 34 attached to this filament and connected to the positive voltage side of the power source is provided at the bottom of the valve body 32.

The spring 50 is connected to the terminal 60, and is provided in the connecting portion 51 as a terminal, the pressing portion 52 that is provided in the connecting portion 51 and presses the flange portion 33 of the valve 30, and the pressing portion 52. And a rotating portion 53 rotatably attached to the groove portion 23 provided in the wall portion 22 of the reflector 20, and a rotating portion 53 provided in the rotating portion 53 so as to face the pressing portion 52 with the valve 30 as the center. And a pressing portion 54 that presses the collar portion 33 of the valve 30 and a locking portion 55 that is provided on the pressing portion 54 and that is locked by the hooking portion 46 of the valve holder 40. The connecting portion 51, the pressing portions 52 and 54, the rotating portion 53 and the locking portion 55 of the spring 50 are integrally made of a conductive material.

The connecting portion 51 of the spring 50 has a rod shape and is attached to and detached from the terminal 60.

The terminal 60 includes a terminal portion 61 to which the connecting portion 51 of the spring 50 is connected, and a lead wire 62 having one end attached to the terminal portion 61 and the other end attached to the ground. Is equipped with.

The terminal portion 61 of the terminal 60 is provided with a hole portion 63 into which the connecting portion 51 of the spring 50 is fitted.

According to the vehicular lamp having such a configuration, the connection on the negative side of the electric system is as follows. That is, when the valve 30 is attached to the valve holder 40, the locking portion 55 of the spring 50 is hooked on the hooking portion 46 of the valve holder 40. As a result, the two pressing portions 52, 54 of the spring 50 come into contact with and press the flange portion 33 of the valve 30. As a result, the flange 33 of the valve 30 and the spring 50 are electrically connected. Further, since the connecting portion 51 of the spring 50 is connected to the terminal 60, the collar portion 33 of the valve 30 passes through the pressing portions 52, 54 and the connecting portion 51 of the spring 50, and the terminal 60, and the minor portion. Connected to the side.

According to the first embodiment, since the flange portion 33 of the valve 30 is connected to the minus side via the spring 50, the valve holder 40 can be made of a non-conductive material. For this reason, the types of materials that can be used for the valve holder 40 increase, and it becomes possible to select materials according to the application.

Since a material other than metal can be used as the material of the valve holder 40, the weight of the valve holder 40 can be reduced. As a result, the reflector 20 that supports the valve holder 40 does not need to be made stronger than in the conventional case. Further, if a material other than metal is used, no surface treatment is required, so that the manufacturing cost of the valve holder 40 is reduced as compared with the conventional case.

Since the terminal portion 61 of the terminal 60 is attached to the connecting portion 51 of the spring 50 located inside the valve holder 40, the mounting position of the terminal portion 61 is larger than that of the conventional one. Move to section 33. As a result, in the first embodiment, the thickness a from the housing body 11 of the housing 10 to the cap portion 12 can be made thinner than the thickness b according to the prior art of FIG. Become.

Since the spring 50 presses the flange portion 33 of the valve 30, the spring 50 always contacts the flange portion 33, and conductivity is improved. For this reason, the connection to the ground is secured, and the occurrence of contact failure can be prevented.

Second Embodiment FIG. 2 is a diagram showing a second embodiment of the present invention.

In the second embodiment, a spring 70 and a terminal 80 are used instead of the spring 50 and the terminal 60 of the first embodiment. The other parts are the same as those in the first embodiment, and the description thereof will be omitted.

The spring 70 is connected to the terminal 70, the connecting portion 71 is provided with the pressing portion 72 for pressing the collar portion 33 of the valve 30, and the pressing portion 72 is provided with the reflector 20. A rotation part 73 rotatably attached to a groove part 23 provided in the wall part 22 of the valve, and a rotation part 73 provided on the rotation part 73 so as to face the pressing part 72 around the valve 30. A pressing portion 74 that presses the flange portion 33 of the valve 30, and a locking portion 75 that is provided on the pressing portion 74 and that is locked to the hooking portion 46 of the valve holder 40 are provided. The connecting portion 71 of the spring 70, the pressing portions 72 and 74, the rotating portion 73, and the locking portion 75 are integrally made of a conductive material.

The connecting portion 71 of the spring 70 has a U shape and is attached to and detached from the terminal 80.

The terminal 80 includes a terminal portion 81 connected to the connecting portion 71 of the spring 70, and a lead wire 82 having one end attached to the terminal portion 81 and the other end attached to the ground. .

The terminal portion 81 of the terminal 80 is provided with a hole portion 83 into which the connecting portion 71 of the spring 70 can be fitted. The cross-sectional shape of the hole 83 is a semicircle at both ends, and the semicircles are connected. With such a cross-sectional shape, the U-shaped connecting portion 71 of the spring 70 can be inserted.

According to the second embodiment, since the connecting portion 71 of the spring 70 has a U-shape, the connecting portion 71 of the spring 70 and the terminal portion 81 of the terminal 80 are firmly connected. It becomes something. In particular, if the U-shaped portion of the connecting portion 71 of the spring 70 is opened a little, the connection between the connecting portion 71 and the terminal portion 81 is further strengthened, and the occurrence of electrical contact failure is reduced. It is also possible to prevent the terminal portion 81 of the terminal 80 from falling off due to vibration.

[0042]

[Effect of device]

 As described above, according to the present invention, the electrical connection for light emission of the bulb is made via the flange portion and the spring member of the valve. As a result, the valve holder can be made using a non-conductive material.

As a result, the surface treatment of the valve holder is unnecessary and the manufacturing cost of the valve holder can be reduced as compared with the conventional case where the valve holder is made of a material such as metal.

[Brief description of drawings]

FIG. 1A is a sectional view showing a first embodiment of a vehicular lamp of the present invention, and FIG. 1B is an explanatory view seen from an arrow A.

FIG. 2A is a sectional view showing a second embodiment of the vehicular lamp of the present invention, and FIG. 2B is an explanatory view seen from an arrow B.

3A is a cross-sectional view showing an example of a conventional vehicle lamp, and FIG. 3B is an explanatory view seen from an arrow C. FIG.

[Explanation of symbols]

 20 Reflector 21A Bulb insertion hole 30 Bulb 31 Light emitting part 32 Base 33 Collar part 40 Valve holder 42 Locking part 50 Spring member 51 Terminal

Claims (1)

[Scope of utility model registration request] 1. A tubular valve holder is fitted and fixed in a valve insertion hole provided in the reflector, and a locking portion projecting toward an inner peripheral side of the valve holder is provided at a projecting portion of the valve holder toward the reflector. The light emitting portion of the bulb that is formed and inserted through the bulb holder is disposed in the reflector, and the flange portion integrally provided on the conductive mouthpiece of the bulb is a spring member held by the bulb holder. In the vehicular lamp fixed to the locking portion by pressing, the spring member is formed of a conductive material, and the spring member is provided with a terminal for connecting an electric wiring, so that the base of the bulb is inserted through the spring member. A vehicle lamp characterized in that it can be electrically connected to a power source.