JPS634321Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an automobile headlamp, and more specifically, to an improvement in the mounting structure for mounting a halogen H1 bulb to a holder attached to a reflector.

As shown in FIGS. 1 and 2, a conventional headlamp of this type has a holder c attached to a rear opening b of a reflector a, and a bulb d attached to the holder c.
The flange e is removably attached by the elastic force of a spring f. The holder c has an insertion hole g in its center for inserting the bulb d, and has a pair of protrusions h protruding from its back surface formed with an upper engaging part i and a lower engaging part j, respectively, While engaging the lower part k of the spring f to the lower engaging part j, the upper engaging part i
By engaging the upper part l of the spring f, the spring f presses the flange e of the valve d against the holder c, thereby attaching the valve d. Further, the terminal d' of the valve d is connected by being inserted into the connector m of the power supply.

By the way, the conventional headlamp shown above uses a spring f to assemble the bulb d to the holder c, but since the spring f cannot press the entire surface of the flange e, no impact force is applied to the vehicle body. If such problems are added, there is a risk that the valve d will shake, and there is a problem that the number of parts and the number of assembly steps will increase. Furthermore, since the valve d and the connector m are assembled by simply inserting the connector m into the terminal d' of the valve d, there is a possibility that looseness may occur between the valve d and the connector m.

In view of the above circumstances, the present invention aims to provide an automobile headlamp that reduces the number of parts and assembly man-hours, and allows bulbs and connectors to be assembled securely without rattling.

An embodiment of the present invention will be described below with reference to FIGS. 3 to 7.

The automobile headlamp according to the present invention includes a bulb 1,
Holder 3 attached to the rear opening of reflector 2
and a connector 4 connected to the valve 1.

As shown in FIGS. 3 and 4, the holder 3 has a mounting protrusion 31 facing forward on its front surface, and the mounting protrusion 31 extends along the peripheral edge 21 forming the rear opening of the reflector 2. By fitting, the reflector 2 is attached. Further, an insertion hole 32 for inserting the bulb 1 is provided in the center of the holder 3. An annular wall 33 is formed on the back surface of the holder 3 for attaching the connector 4, and an appropriate number of holes 34 for engaging the connector are formed in a part of the annular wall 33. More specifically, the annular wall 33 has an appropriate wall thickness and protrudes rearward at a position centered on the insertion hole 32 on the back surface of the holder 3.
are provided, for example, at two opposing positions so as to penetrate the annular wall 33 in the diametrical direction.

On the other hand, the bulb 1 is of the halogen H1 type and has a flange 11 approximately in the center thereof, and a terminal 12 for connecting to the connector 4 at the rear thereof. It is configured to be inserted into the insertion terminal 45.

Further, as shown in FIG. 6, the connector 4 is formed into a substantially cylindrical shape from synthetic resin, rubber, etc., and has a positive side 12a of the terminal 12 at the front thereof.
A positive plug-in terminal 45a and a negative plug-in terminal 45b formed so that the negative wire 12b can be inserted are buried, and both terminals 4
5a and 45b are made to protrude rearward. and,
On the outer periphery of the connector 4, an arcuate wall 41 that can be fitted onto the annular wall 33 is provided for attachment to the holder 3.
and a projecting piece 42 corresponding to the engagement hole 34. The arcuate wall 41 is connected to the connector 4
It consists of a rear wall part 41a extending in the diametrical direction from the outer circumferential part of the rear wall part 41a, and an arcuate fitting part 41b protruding forward from the end of the rear wall part 41a. 41b can be fitted onto the annular wall 33. In addition, the overhanging piece 4
2 is formed at a position facing the engagement hole 34 of the holder 3 and extends laterally toward the front, and has a claw portion 43 formed at the tip of the projecting piece 42 that can engage with the engagement hole 34. ing. This claw portion 43 has an arrowhead shape with its rear end face standing up at a right angle and the thickness gradually decreasing from there to the tip, and when the arcuate wall 41 is fitted onto the annular wall 33, an overhanging piece is formed. 42 is bent so that the claw portion 43 can be engaged with the engagement hole 34. Further, a pressing piece 44 is formed on the overhanging piece 42 at a position opposite to and rearward from the claw part 43, so that when the pressing piece 44 is pressed forward, the overhanging piece 42 can be bent. . Therefore, overhang piece 4
A thin wall portion 42' is formed at the base of the pressing piece 44.
The projecting piece 42 is made to easily bend when pressed.

Since the headlamp according to the present invention has the above-described configuration, in order to set the bulb 1, the connector 4 is
Insert the terminal 12 of the bulb 1 into the connector to hold the bulb 1 in the connector. In this state, insert the bulb 1 into the insertion hole 32 of the holder 3 attached to the reflector 2, and insert the arc of the connector 4 into the annular wall 33 of the holder 3. The connector 4 is assembled to the holder 3 by externally fitting the wall 41 and bending the projecting piece 42 so that its claw portion 43 is engaged with the engagement hole 34 of the annular wall 33. As a result, the flange 11 of the bulb 1 is sandwiched between the back surface of the holder 3 and the front surface of the connector 4, so that the bulb can be reliably attached.

As a result, compared to the conventional technology, the spring is no longer necessary, which reduces the number of parts and the number of assembly steps.
In addition, since the flange 11 of the bulb 1 is sandwiched between the holder 3 and the connector 4, the bulb 1 can be securely attached and does not rattle.
The bulb 1 is not simply attached to the connector 4, but the connector 4 and the holder 3 are connected by the engagement of the engagement hole 34 and the claw portion 43, so that the bulb 1 and the connector 4 can be securely attached to the holder 3 without rattling.
The claw portion 43 can be easily engaged with and disengaged from the engagement piece 4, and as long as the projection piece 42 is not bent, the engagement between the engagement hole 34 and the claw portion 43 can reliably prevent the projection piece 42 from coming off.

As described above, according to the present invention, the arcuate wall of the connector is fitted onto the annular wall of the holder, and the claw at the tip of the overhanging piece of the connector is engaged with the engagement hole of the holder to connect the connector and the holder. Since the structure is such that the valve flange is sandwiched between the connector and the holder in this state, the number of parts and assembly man-hours can be reduced, and the parts do not rattle each other. It has the effect of being able to be assembled securely.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing an example of the configuration of a conventional automobile headlamp, and FIG. 2 is a view taken along the arrow in FIG. 1 with the connector removed. FIG. 3 is a sectional view showing an embodiment of an automobile headlamp according to the present invention;
4 is an exploded sectional view, FIG. 5 is a view taken in the direction of the arrow in FIG. 4, FIG. 6 is an exploded perspective view showing the valve and connector, and FIG. 7 is a view of the connector seen from the front. 1... Valve, 11... Flange, 12... Terminal,
2... Reflector, 3... Holder, 32... Insertion hole, 33... Annular wall, 34... Engagement hole, 4...
Connector, 41... Arc wall, 42... Projecting piece, 43... Claw portion, 44... Pressing piece.

Claims (1)

[Scope of utility model registration request] The holder consists of a halogen H1 bulb having a flange, a holder having an insertion hole through which the bulb can be inserted and attached to the rear opening of the reflector, and a connector into which a terminal of the bulb is inserted to hold the bulb. A rearwardly facing annular wall is formed on the back surface of the connector, and an appropriate number of engagement holes are formed in a part of the annular wall, and an arcuate wall that can be fitted onto the annular wall of the holder is formed on the outer periphery of the connector. an overhanging piece corresponding to the engagement hole of the holder, and a claw portion capable of engaging with the engagement hole is formed at the tip of the overhanging piece, and an overhanging piece is provided at a position rearward from the claw portion. Forming a pressing piece for bending,
The holder and connector are assembled by fitting the arcuate wall of the connector onto the annular wall of the holder and engaging the claw portion of the projecting piece with the engagement hole of the holder, and inserting the valve between the holder and the connector. An automobile headlamp characterized by a flange that is clamped.