JP2500123Y2 - Light source bulb mounting structure - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for detachably attaching a light source bulb to a bulb holder provided in a reflector of a vehicle lamp or a lamp housing.

[0002]

2. Description of the Related Art A light source bulb in an automobile headlamp may be fixedly attached to a lamp housing or fixedly to a reflector. Which of the above formats is used depends on the structure of the optical axis adjusting device of the headlight.

FIG. 4 is a sectional view showing a conventional example of a headlamp of the type in which a light source bulb is attached to a reflector.

The lamp housing 1 is fixedly mounted on the vehicle body of an automobile.

The reflector 2 is rotatably supported with respect to the lamp housing 1 by an optical axis adjusting device (not shown).

A valve holder 3 is fixed to the rear opening of the reflector 2.

The light source bulb 4 is provided with a mounting flange 4a. The mounting flange 4a is applied to the bulb holder 3 and pressed by a spring 5 to be fixed.

Reference numeral 6 denotes a rubber waterproof cover mounted so as to cover the rear opening of the lamp housing 1.

Reference numeral 7 is an annular cap to which the cover 6 is attached.

The electric wire 10 and the light source bulb 4 are connected by a connector 11.

[0011]

In the light source bulb mounting structure of the above-mentioned conventional example (FIG. 4), it is difficult to attach / detach the light source bulb 4 to replace it, particularly to attach the light source bulb.

That is, the light source bulb 4 is positioned almost as shown in the figure, and the mounting flange 4a is pressed against the valve holder 3 while the spring 5 presses the mounting flange 4a so that the spring 5 is engaged with the valve holder 3. It must be hooked into a slot (not shown) and secured. Performing this operation by putting a fingertip into the rear opening of the lamp housing 1 requires a high degree of skill, a great deal of labor, and a long time.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a mounting structure for quickly and easily attaching / detaching a light source bulb to / from a bulb holder without requiring special skill. And

[0014]

SUMMARY OF THE INVENTION A light source bulb mounting structure of the present invention created to achieve the above object is a bulb holder, and a light source bulb having a mounting flange that abuts a bulb mounting surface of the bulb holder. A light source bulb mounting structure comprising: spring means for pressing the mounting flange toward the bulb holder, wherein the bulb holder is provided with a hook having a curved shape toward the light source bulb. Is a tubular portion, a longitudinal cut provided on the rear end side of the tubular portion, a flange-shaped engaging portion provided on the front end side of the tubular portion and engaging with the hook, A pressing spring fixed to the front of the flange-like engaging portion and abutting on the mounting flange is provided.

[0015]

According to the above arrangement, a. When the pressing spring of the above-mentioned spring means is applied to the mounting flange of the light source bulb from the rear side and this is inserted into the bulb holder, the flange-shaped engaging portion engages with the hook, and the light source bulb's mounting portion Installation work is performed.

B. Further, when a force is applied to compress the width of the cut portion by applying a hand force, the flange-shaped engaging portion contracts and disengages from the hook, so that the light source bulb can be removed quickly and easily.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a light source bulb mounting structure according to the present invention.
It is sectional drawing which shows an Example. Reference numeral 12 denotes a bulb holder, which includes an inner flange 12a that abuts a mounting flange 13a of the light source bulb 13. 13b is a terminal for energizing the light source bulb.

Although the bulb holder 12 of this embodiment is a member fixed to the reflector of the vehicular lamp, the bulb holder 12 may be installed in the lamp housing when the present invention is carried out. The light source bulb 1 is attached to the bulb holder 12.
Hook 1 that bends towards 3 (ie towards the inside)
2b is provided.

Reference numeral 14 is a holder constituted by spring means. Reference numeral 14a is a tubular portion that forms the main body of the holder 14. FIG. 2 shows a rear view in the direction of arrow A shown in FIG. 1, and FIG. 3 shows a perspective view of the holder 14 as a single item.

A longitudinal cut 14a ₁ is provided on the rear end side of the cylindrical portion 14a as shown in FIG. In the present invention, the front and rear names are such that the direction of projection of the lamp is the front and the opposite direction is the rear.

A flange 14b is provided continuously with the front end of the tubular portion 14a so as to engage with the hook 12b. Further, a pressing spring 14c is integrally connected to the front side of the flange 14b. In the assembled state shown in FIG. 1, the tubular portion 1
When the force of the fingertip is applied to 4a to squeeze it in the directions of arrows B and B ', the tubular portion 14a is provided with the slit 14a ₁ shown in FIG. 3, so that the diameter can be easily reduced. It is elastically deformed. When the tubular portion 14a elastically contracts, the flange 14b integrally formed with the cylindrical part 14a also contracts,
It comes off from the hook 12b of the valve holder 12. In this way, the mounted state of the light source bulb by the holder 14 of this example can be released quickly and easily.

In order to mount the light source bulb 13 on the bulb holder 12 using this holder 14, the holder 14
The holding spring 14c of the light source bulb 13 to the mounting flange 13
a in contact with the valve holder 12 toward the left in FIG.
Push it in. Then, the flange 14b of the holder 14 engages with the hook 12b of the valve holder, so that the mounting work can be performed quickly and easily.

[0023]

The light source bulb mounting structure of the present invention comprises a bulb holder, a light source bulb having a mounting flange that abuts the bulb mounting surface of the bulb holder, and spring means for pressing the mounting flange toward the bulb holder. In the mounting structure of the light source bulb, the bulb holder is provided with a hook having a curved shape toward the light source bulb, and the spring means has a tubular portion,
A longitudinal cut provided on the rear end side of the tubular portion, a flange-shaped engaging portion provided on the front end side of the tubular portion for engaging with the hook, and the flange-shaped engaging portion. The light source bulb can be quickly and easily attached / detached to / from the bulb holder without requiring special skill because it has a pressing spring that is fixed to the front of the above and abuts against the mounting flange.

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of a light source bulb mounting structure according to the present invention.

FIG. 2 is a rear view of the above embodiment as viewed in the direction of arrow A.

FIG. 3 is a perspective view of a single holder of the embodiment.

FIG. 4 is a cross-sectional view showing a conventional light source bulb mounting structure.

[Explanation of symbols]

 1 Lamp Housing 2 Reflector 3 Bulb Holder 4 Light Source Bulb 4a Mounting Flange 5 Spring 6 Cover 7 Cap 10 Electric Wire 11 Connector 12 Valve Holder 12a Inner Flange 12b Hook 13 Light Source Bulb 13a Mounting Flange 13b Terminal 14 Holding Tool 14a Cylindrical Part 14b Flange 14c Presser spring

Claims (1)

(57) [Scope of utility model registration request] 1. A light source bulb mounting structure comprising: a bulb holder; a light source bulb having a mounting flange that abuts a bulb mounting surface of the bulb holder; and spring means for pressing the mounting flange toward the bulb holder. The above-mentioned bulb holder is provided with a hook having a curved shape toward the light source bulb, and the above-mentioned spring means has a tubular portion and a longitudinal slit provided at the rear end side of the tubular portion. A flange-shaped engaging portion that is provided on the front end side of the tubular portion and that engages with the hook; and a pressing spring that is fixed in front of the flange-shaped engaging portion and abuts against the mounting flange. The light source bulb mounting structure is characterized in that