JPS6019601B2 - Vehicle lights - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a vehicle cocoon lamp, and more particularly to a wheel lamp in which a leg portion of a lens is bonded and fixed to a periphery of a rim or a housing.

This type of wheel lamp has a groove c formed at the periphery of an opening b of a housing a, as shown in FIGS. 1 and 2, for example.
This groove c is filled with an adhesive i such as hot melt, and then the leg e of the lens d is glued, and then the boss f of the lens d and the mounting flange g are connected with the screw i as shown in Fig. 1. Alternatively, as shown in Fig. 2, a crimping pin h is protruded from the lens d and inserted into the hole k' of the mounting flange g, and the tip of the pin h is crimped to attach the lens d to the housing a. The joints are reinforced and sealed.

However, in the structure of such a subordinate vehicle firewood lamp, an operator uses a nozzle or the like to apply adhesive i such as hot melt to the groove c of the housing a, and then quickly applies the adhesive i to the lens d. It is necessary to insert the leg part (e) into this groove part (c) and attach it firmly. Therefore, it is difficult to control the amount of adhesive (i) applied, and as a result, the water resistance of the adhesive part may decrease, or the adhesive The i protrudes and the protrusion causes a stringy phenomenon, which not only makes the finished product look unsightly, but also increases repair work and reduces work efficiency.

In addition, in order to ensure the reliability of the bonding strength, it must be reinforced with screws j or crimping pins, and the lens d is provided with a protruding boss portion f or a crimping pin h, so the structure of the lens d becomes complicated. Not only that, but a mounting flange g is attached to the outer periphery of the groove c of the housing a corresponding to the boss f or the crimping pin h.
, the structure of the housing a becomes complicated, and the boss part f,
There is a problem with molding because the pin h or the mounting flange is missing. Furthermore, it may become impossible to form the boss part f, pin h, and mounting flange g, and in that case, the boss part f or the crimping pin may be located inside (on the light source side) of the leg part e of the lens d. A lamp (not shown) with a protruding projection h has been proposed, but in this case, there are problems with the appearance that the boss f is visible from the light emitting surface of the lens d, and the boss f etc. are not the light source. There are problems with light distribution, such as blocking light from the lens, and problems such as the lens light emitting surface becoming smaller. The present invention has been made in view of the above-mentioned circumstances, and provides a novel lamp for car bran with a simple structure, which can firmly bond and seal the lens and housing, and expand the light emitting surface of the lens. The purpose is to provide.

DESCRIPTION OF THE PREFERRED EMBODIMENTS An example of the implementation of a car cocoon lamp according to the present invention will be described below with reference to the accompanying drawings.

3 and 4 show a first embodiment of the present invention, 1
2 is a housing made of polar synthetic resin such as ABS resin, acrylic resin, or polycarbonate resin, and 2 is a lens made of acrylic resin or polycarbonate resin disposed on the front side of the housing, and a lamp chamber is defined by this housing and the lens 2. A light bulb 5 is disposed within 4 via a socket 51.

At the joint between the housing and the lenses 2, a joint leg 21 is provided on the periphery of the lens 1, and a groove 12 for accommodating the joint leg 21 is provided on the periphery of the entrance 11 of the housing. For example, a loop-shaped metal body, such as a wire 3, is disposed between the joint portion of the hair joint leg 21 and the end portion 22 of the hair joint leg 21, and the wire 3 is heated by induction using high frequency waves to form the joint leg portion 21 of the lens.
A part of the end part 22 and a part of the bottom part 12a of the groove part 12 are melted, and in this state, the lens 2 is pressed against the housing 1 side,
While the wire 3 remains embedded in the joint, the melt 6 is solidified to seal and fix the joint between the lens and the housing.
More specifically, when joining the housing 1 and the lenses 2, as shown in FIG. 3, the end 22 of the joint leg 21 of the lens 2 is placed on top of the end 22 of the joint leg 21, and the lower surface of the bottom 12a of the groove 12 of the housing 1 is connected to the receiving tool 7 equipped with the high frequency transfer coil 8. By driving the high-frequency transfer coil 8 while pressing the joint leg 21 of the lens 2 in the direction of arrow P, a gap is created between the bottom 12a of the twilling part 12, the joint leg 21, and the end 22. The sandwiched wire 3 is conductively heated, and the heat generated by the wire 3 causes the bottom 1 of the groove 12 of the housing 1 to heat up.
The joint between the inner surface of the lens 2a and the end 22 of the leg 21 of the lens 2 is melted, the wire 3 is embedded in the joint, and the molten material 6 solidifies to form the groove 12. The inner surface of the connecting leg portion 21 and the outer surface of the joint leg portion 21 are integrally fixed.

Therefore, joining and fixing the two is extremely easy, and
The wire 3, which is a loop-shaped metal body, is buried in both joints so as to have an anchor effect, so that it can be firmly joined and sealed with high mechanical strength, and its adhesive strength is extremely uniform, and the mechanical Since strong bonding and seal fixation occur at the same location, the bonding space can be made smaller and the light distribution area of the wheel lamp can be expanded. In this example, as shown in FIG. Even if there is an error, it is easy to fit together, and as shown in the opening of the figure, the side wall 12b of the groove 12
, 12b may be inclined from the bottom 12a of the groove 12 toward the end of the entrance.

In addition, in the above-mentioned embodiment, the case where the wire 3 is used as the loop-shaped metal body has been described, but the present invention is not limited to this, and the loop-shaped metal body 3 is used as the loop-shaped metal body.
A wire mesh, metal foil, etc. can be used as the material.

Moreover, although the above-described example has been described in which the housing 1 is provided with a groove, the rim may be provided with a groove to fix the rim and the lenses. FIG. 6 shows a second embodiment of the driver's lamp of the present invention. In this example, a metal-containing material 3' that generates heat by induction heating, such as a conductive paint, is provided at the bottom 12a of the groove 12 of the housing 1. Coating or filling
The lens 2 and the housing 1 are bonded and fixed by high-frequency induction heating of this loop-shaped metal-containing material 3'.

As is clear from the above-mentioned embodiments, the lamp for a car ball according to the present invention is provided with a connecting leg on the periphery of the shines, and a groove for mating the connecting leg is provided on the periphery of the opening of the rim or housing. A loop-shaped metal body was arranged in the groove, the metal body was heated by high-frequency induction to melt the joint between the joint leg and the groove, and the metal body was buried in the bushing. Since the lens and rim or housing are sealed and fixed by solidifying the molten material at the joint, the lens and rim or housing can be quickly and easily joined and sealed. , the bonding force is uniform, and the metal body is embedded in the joint, which increases mechanical strength.Furthermore, the metal body that increases this mechanical strength and the molten material seal are fixed at the same place. This has the effect of reducing the joining space and further expanding the light distribution area of the lamp.

Furthermore, since no adhesive is used unlike in the past, there is no adhesive bulging or stringy phenomenon, and the assembly work is extremely easy.

[Brief explanation of the drawing]

1 and 2 show a conventional wheel lamp, FIG. 1 is a partial sectional view of the lamp, and FIG. 2 is a partial sectional view of another example of the lamp. 3 and 4 show a first embodiment of a lamp for a car frame according to the present invention, FIG. 3 is a sectional view of the lamp, FIG. Figure 5A is a cross-sectional view showing the structure of the groove, the opening of the same figure is a cross-sectional view showing the structure of another groove, and Figure 6 is a cross-sectional view of main parts showing another embodiment of the wheel lamp odor of the present invention. . 1... Housing made of Ashige resin, etc., 12... Groove,
2... Lens, 21... Joining leg portion, 3, 3'... Loop-shaped metal body, 6... Melt, 8... High frequency shielding coil. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6

Claims (1)

[Claims] 1. A joint leg is provided on the periphery of the lens, a groove into which the joint leg fits is provided on the rim or the opening periphery of the housing, a loop-shaped metal body is disposed in the groove, and a loop-shaped metal body is disposed on the groove. The joint leg is brought into contact with the metal body, the metal body is heated by high-frequency induction to melt the joint between the joint leg and the groove, and the molten material at the joint is solidified while the metal body is buried in the joint. A vehicle lamp characterized in that a lens and a rim or a housing are sealed and fixed.