JPH064529Y2 - Halogen bulb mounting structure - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a novel mounting structure for a halogen bulb, and more specifically, the halogen bulb (1) is attached to the ceiling surface of a cylindrical adapter (2) with a bottom opening, and the adapter is attached. (2) A notch groove (8) that opens to the lower edge of the adapter (2) is formed on the side surface of the adapter (2). Article
Fit the upper end of (5) into the notch groove (8) and fix the external lead rod (7) drawn from the halogen bulb (1) to the housing body.
The present invention relates to a halogen bulb mounting structure, characterized in that it is fixed to the bottom of (3).

As shown in FIG. 7, the conventional halogen bulb (1 ') mounting structure is such that the halogen bulb (1') is attached to the housing body (3 ') via the adapter (2'), and the housing body (3 ' ) And the flange (16 ') which is a separate body, the flange (16')
The relative position between the filament and the filament (15 ') of the halogen bulb (1) was three-dimensionally determined. However, as shown in Fig. 2, a product in which the flange (9) is integrated with the housing body (3) by resin molding is now on the market, and the flange (9 ') is three-dimensionally manufactured as in the past. Move to halogen bulb
It is no longer possible to position the (1 ') relative to the filament (15').

The present invention has been made in order to address such a problem, and its purpose is to mount a halogen bulb in which the filament and the flange of the halogen bulb can be positioned relative to each other without moving the flange. To provide.

An embodiment of the present invention will be described below. The housing body (3) is formed of, for example, a thermoplastic resin molded product, and the flange (9) is integrally formed.
The flange (9) has square positioning notches (10) formed at three locations, and an outer brim (11) is projected above the flange (9) and above the outer brim (11). A step portion (12) is formed on the outer periphery of the upper part of the housing body (3). A positioning groove (13) is formed in the stepped portion (12). The housing body (3) is provided with a cylindrical adapter mounting hole (4) that opens upward, and a plurality of ridges (5) are formed in the vertical direction (in other words, on the inner surface of the adapter mounting hole (4)). For example, it is almost parallel to the center line). The halogen bulb (1) is, for example, one in which the upper end of the glass tube (6) is sealed and the lower end is pinch-sealed, and the filament (15) is arranged inside the glass tube (6) in two steps, the upper filament ( A concave light-shielding plate (16) is arranged on the back part of 15). The adapter (2) is a cylinder with a bottom opening that is made by drawing a metal plate, has a notch groove (8) that opens to the lower edge on the side surface, and the halogen bulb (1) is mounted on the ceiling surface. .
The head of the glass tube (6) of the halogen bulb (1) is painted black. The filament (15) is supported by three internal lead rods (18) of long, medium and short. Said ridge (5)
And, the notch groove (8) is formed at three places, but of course, it is not limited to this, and it can be increased or decreased as necessary.

Then, chuck the adapter (2) into the automatic machine and loosely fit it into the adapter mounting hole (4) of the housing body (3),
The LCL of (1) is adjusted, but the ridge (5) is made long and the upper end of the ridge (5) is processed to make LC
Adjust L. That is, when adjusting LCL,
The upper end of (5) is heated to soften it, and in that state the adapter (2)
Is pressed against the ridge (5) and the ridge (5) is deformed to adjust the LCL. At this time, the upper end of the softened ridge (5) is pushed into the notch groove (8) of the adapter (2),
It works as a detent for (2). This deformed portion is referred to as a notch groove fixing portion (14). Further, if the locking recess (17) is formed in the notch groove (8) as shown in FIG. 6, the deformed portion enters the locking recess (17), and the fixation of the adapter (2) is made more complete. . In addition, the ridge
Halogen bulb (1) with adapter (2) while (5) is softening
Is moved in the up-down direction and tilted in the front-rear direction and the left-right direction to determine the relative position of the filament (15) with respect to the flange (9). When the adjustment of the LCL is completed, the outer lead rod (7) of the halogen bulb (1) is soldered or welded to the bottom of the housing body (3) to fix the halogen bulb (1). As a result, the halogen bulb (1) is completely fixed.

As described above, according to the present invention, since the protrusion is provided on the inner surface of the housing body, the adapter is three-dimensionally adjusted with respect to the housing body by processing the end portion of the protrusion as much as necessary. It has the advantage of being able to easily adjust the LCL of the halogen light bulb. Furthermore, by attaching the halogen light bulb to the adapter and forming a notch groove that opens to the lower edge of the adapter on the side surface of the adapter, Since the protrusion is provided on the inner side surface and the upper end of the protrusion is fitted and fixed in the notch groove,
The effect of stopping the rotation of the adapter is exerted, and at the same time, the external lead rod led out from the halogen bulb is fixed to the bottom of the housing body, so the halogen bulb is pulled by the external lead rod. As a result, the halogen bulb is completely fixed, and as a result, even if the flange is formed integrally with the housing body, no problem occurs.

[Brief description of drawings]

FIG. 1 ... Plan view of an embodiment of the present invention, FIG. 2 ... Front view of one embodiment of the present invention, FIG. 3 ... Plan view of a housing body of the present invention, FIG. 4 ... Adapter of the present invention Front view when mounted on a halogen bulb, FIG. 5 ... Enlarged sectional view of mounting state of the present invention, FIG. 6 ... Partial sectional view of another embodiment of notch groove of the present invention, FIG. 7 ... Conventional example Sectional view of. (1)… Halogen bulb, (2) Adapter (3)… Housing body, (4) Adapter mounting hole (5)… Protrusion, (6)… Glass tube (7)… External lead rod, (8)… Notch Groove (9 ') ... Flange, (10) ... Positioning notch (11) ... Outer collar, (12) ... Step (13) ... Positioning groove, (14) ... Notch groove fixing part (15) ... Filament, ( 16)… Concave light shield (17)… Locking recess, (18)… Internal lead bar.

Claims (4)

[Scope of utility model registration request] 1. A cylindrical bulb having an opening at the bottom, in which a halogen bulb is mounted on the ceiling surface of the cylindrical adapter, and a notch groove is formed on the side surface of the adapter to open to the lower edge of the adapter so that the adapter can be loosely fitted. Characterized in that a protrusion is provided on the inner surface of the housing body of the above, the upper end of the protrusion is fitted into and fixed to the notch groove, and the external lead rod led out from the halogen bulb is fixed to the bottom of the housing body. Light bulb mounting structure. 2. A practical use characterized in that, when adjusting the LCL of a halogen bulb, the upper end portion of the ridge is heated and softened, the softened deformed portion is indented and hardened into the notch groove, and this deformed and hardened portion serves as the notch groove fixing portion. The halogen bulb mounting structure according to claim 1 of the new model registration claim. 3. The mounting structure for a halogen light bulb according to claim 1, wherein a locking recess is formed in the notch groove. 4. The mounting structure for a halogen light bulb according to claim 1, wherein at least the protruding portion of the housing body is made of a thermoplastic resin.