JPS62100960A - Adaptor for halogen lamp - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an adapter for directly attaching a halogen light bulb having a small-diameter base structure to an incandescent light bulb socket fixture having a large-diameter socket structure, and particularly relates to an adapter for using the halogen light bulb with a small-diameter base structure. This made it possible to exchange

BACKGROUND OF THE INVENTION Halogen light bulbs, which have a high emission color temperature, excellent color rendering properties, and are attracting attention as small and lightweight light source light bulbs, have recently been increasingly used in store lighting and the like.

By the way, the small and lightweight feature of this halogen light bulb is achieved by the use of special lighting equipment, but on the other hand, lighting with this light bulb requires such special equipment, so the light bulb's When adopting this method, there were some inconveniences such as the need to newly install equipment for the purpose.

In particular, in stores that used ceiling-mounted downlights for indoor lighting, in order to adopt halogen bulbs, it is necessary to renovate the entire ceiling in order to remove the existing fixtures. It was inconvenient that I had to do it.

On the other hand, as is well known, this halogen light bulb generates a large amount of heat when lit, and the bulb itself is small, so the temperature of the tube wall becomes high when the bulb is lit. Contact with the exterior of the light bulb must be avoided to prevent dangers such as fire.In addition, if spot lighting is attempted using the light bulb to improve the lighting effect, the temperature of the illuminated surface that has been illuminated with condensed light will rise. , are accustomed to altering or discoloring the illuminated object.

By the way, this effect of heat on the object to be illuminated has been solved by the development of a dichroic mirror, which consists of a light-condensing surface made of a light-transmissive material such as glass with a multilayer coating of a heat ray-transmissive film. There is.

Problems to be Solved by the Invention In such a conventional situation, if it is possible to use a halogen light bulb using existing incandescent light bulb lighting equipment, it is possible to fully utilize the characteristics of the halogen light bulb as a light source method. In addition, it can be used easily with reduced construction costs and the like, which is effective in popularizing the light bulb.

Therefore, as a means of using this halogen bulb in an incandescent lamp lighting device, an adapter having an incandescent bulb base can be considered, but if the above-mentioned dichroic mirror is attached to this adapter to increase its usefulness, the mirror can be used. Since it can be used relatively permanently, it is preferable to construct it so that it can be reused by replacing the halogen bulb (lighting life of 1,500 hours). Since the angular positional relationship with the reflective surface is regulated to achieve its function, if the adapter is configured to allow bulb replacement, the mounting position of the halogen bulb to be installed is specifically determined by the connection between the bulb and the mirror. It is necessary to install the positional relationship correctly. However, with the normal socket structure, the metal fittings and hook
Considering the processing accuracy of 2 Toro and the assembly condition, it cannot be expected to maintain the accuracy of the light bulb mounting position.

By the way, there are high-precision device configurations for halogen light bulb sockets, such as those found in automobile headlights, but when targeting the adapter, such high-precision socket devices are costly. It is difficult to adopt it due to the built-in space.

Therefore, the first object of the present invention is to develop an adapter that makes it possible to attach a halogen light bulb with a small-diameter cap to an incandescent light bulb. The purpose of this project is to develop a safety device that protects and prevents contact with exterior objects, and also to develop a device configuration that makes it possible to attach a reflective shade such as the dichroic mirror, which can be attached using a socket cap device with a particularly simple structure. Our goal is to provide an adapter that allows you to replace light bulbs with high positional accuracy.

Means for Solving the Problems To achieve this, in the present invention, the interior body having a small-diameter socket opening for attaching a halogen bulb and the exterior body having a large-diameter mounting opening for attaching a reflective shade are made of heat-resistant molded material. Consisting of
An incandescent lamp cap is attached to the assembly base of the inner body.

Then, the rim of the socket opening is formed on the surface that abuts against the cap mounting base of the halogen light bulb. On the other hand, the socket fitting disposed in the mouth is assembled with a loose fit in the vertical axis direction and the horizontal axis direction with respect to the mouth. Preferably, it is convenient to configure the vertical length of the portion constituted by the inner body and the outer body so that the entire length from the end of the cap to the tip of the reflective shade is approximately the length of an incandescent light bulb.

Function According to the above-mentioned means of the present invention, the interior body having the socket opening for a halogen light bulb acts as a shield for the light bulb to which the exterior body is attached. As a result, the radiant heat from the halogen bulb while it is lit does not directly affect the attached fixture, and the reflector shade, which is integrally attached to the tip of this exterior body, directs the luminous flux from the bulb at an irradiation angle of 10° to 60''.
However, if this is a dichroic mirror, the wavelength component in the heat ray range of the light beam is transmitted toward the rear of the mirror, and the light in the visible light range is reflected under the condensed light.

Due to these effects and the structure of the small-diameter receiving socket in the interior body and the incandescent bulb cap provided at the assembly base, it is possible to use halogen light bulbs with caps of different diameters in existing incandescent light bulb fixtures. becomes.

The holder, which is loosely fitted into the socket opening, accepts the halogen bulb base that is screwed into it, but the holder alone cannot secure the bulb; With the rim of the bulb's base mounting base in contact with the abutting surface of the socket rim, the receiver is pulled up vertically by the amount of play, and the base, its mounting base, socket rim, and receiver are pulled up vertically by the amount of play. The bulb is secured when the metal is tightened together. Furthermore, with this tightening, the mutually inclined surfaces of the edge of the bulb base attachment base and the abutting surface of the socket opening come into close contact with each other over the entire circumference, thereby restricting the lateral play of the receiver. As a result, the position and orientation of the installed halogen light bulb are regulated by the socket edge, so the structure of the socket opening, specifically the mirror assembled integrally with the socket opening component (exterior body) By ensuring the height position and center position relative to the socket, it can be installed in the socket opening in an appropriate state.

Next, preferred embodiments of the adapter of the present invention will be described in detail.

Embodiment FIG. 1 is a half-cut longitudinal sectional side view showing an embodiment of the adapter of the present invention, which includes a funnel-shaped reflective cap L at the tip, a cylindrical exterior body 2 made of ceramic material, and an interior body fitted therein. It consists of a base cap 3 made of heat-resistant synthetic resin (PPS) and a base for an incandescent light bulb 4 (E2B) at the rear end.

The reflective shade l is made of glass and is a dichroic mirror whose funnel-shaped inner surface is coated with an optical multilayer reflective film, which transmits wavelength components in the heat range and reflects light in the visible light range. Depending on the shape of the reflecting surface, the light from the light source is condensed at an irradiation angle of about 10° to 60°.

The exterior body 2 to which this reflective shade 1 is attached at the tip by cementing or by fixing means such as using a locking fitting 5 has a wall having a small-diameter receiving lower part in which a halogen light bulb 6 is mounted in the cylindrical inner middle part of the exterior body 2. A partition section 8 having a shape is provided.

The lip 9 of the receiving lower is connected to the halogen bulb 6.
There is no inclined surface that abuts against the cap mounting base edge lO. Further, the partition portion 8 functions as a receiving seat for fixing the base cap 3 fitted to the exterior body 2 by tightening it with screws 12.

Prior to integrally assembling the exterior body 2 and the base cap 3, a small-diameter screw holder 1 is inserted into the lower holder from the rear.
3 (Ell) is inserted. That is, as shown in FIG. 2, the holder 13 made of a conductive metal is integrally formed with a flange 14 projecting horizontally from the outer periphery of the rear end of a cylinder having a screw groove by means of embossing molding or the like. , and one end of the lead piece 1B is integrally attached to the ear piece 15 by bending a part of the flange part 14 by spot explosion bonding. On the other hand, a part of the thick inner peripheral edge of the tip of the base cap 3, which is fitted with the tip in contact with the back surface of the partition part 8, is shaved off to form an engagement groove 11, so that it can be inserted loosely into the receiving lower. The screw holder 13 has a flange 14 that has some margin in the gap between the engagement groove 11 and the side surface of the partition part 8 formed by assembling the exterior body 2 and the cap cap 3. (It is in a loose condition) and is stuck.

An incandescent lamp cap 4 and a center electrode 17 are attached to the outer periphery and rear end of the cap cap 3. When assembling, the other end of the lead piece 18 is placed along the incandescent bulb cap 4. There is no electrical connection between them. In addition, a metal piece 18 whose tip is bent to form a center contact piece 18 having an elastic action is provided extending from the center electrode 17 through the hollow body portion of the base cap 3;
The bent base of the center piece 18 is placed against the stepped portion 20 of the cap 3, and the scissors piece 18 is placed so as to face the area into which the tip electrode of the halogen bulb 6 enters.

Furthermore, several opening windows 21 are provided in a part of the exterior body 2, and heat dissipation fins may be formed on the outer peripheral wall of the windows 21 if necessary. This shows the electrically insulating fixing part provided between the

The vertical length of the middle body is configured such that the overall length from the base end to the tip of the reflector is approximately the length of an incandescent light bulb.

Also, although not shown, as another embodiment of the present invention,
The exterior body and the base cap serving as the interior body may be integrally constructed of a heat-resistant molded material such as ceramics, and in this case, it is effective to use a vertically divided mating mold due to the need for die cutting.
Furthermore, the flange portion 14 of the screw receiver 13 and the lead piece 16 may be integrated.

According to the embodiment of the present invention having such a configuration, when the cap cap 3 to which the incandescent lamp cap 4 and the center electrode 17 are attached is assembled to the exterior body 2, the engagement groove 11 and the partition portion 8
The screw holder 13, which is attached by loosely sandwiching the flange 14 in the gap formed between the side surface of the screw holder 13, is movable in the screw axial direction of the holder 13 within the range of the play of the flange 14 in the gap. Moreover, the receiver 13 can be moved to some degree in the warp direction within the range of the looseness of the receiver 13 relative to the socket 8.

Therefore, when the reflector l is attached to the tip of the exterior body 2 and the halogen bulb 6 is attached to the adapter body,
When the cap of the light bulb 6 is inserted from the installation side of the reflector l toward the receiving lower, and screwed together with the screw receiver 13, the halogen light bulb 6 that enters the space is guided by the receiver 13. At the end of the screwing operation, the edge of the base 10 comes into contact with the inclined rim 9 of the receiving lower, and the mutual abutting action of these abutting surfaces causes the screw holder 13 to move within the above-mentioned tolerance range. It is fixed for the first time by moving and tightening the receiving lower between the flange 14 and this contact surface.

With this operation, the center position of the light bulb 6 regulated by the contact surface and the insertion position are simultaneously determined.

Therefore, by accurately determining the positional relationship between the lower receiving part, especially the mouth edge 9, and the reflective shade 1 for the installed state of the halogen light bulb 6, the halogen light bulb 6 with a standardized shape and structure can be used. It can always be mounted in a fixed position regardless of the accuracy of the entire receiver structure. Therefore, even when replacing a light bulb when the light bulb is broken due to use over time, the newly installed halogen light bulb 6 can be easily installed in a predetermined position.

In addition, in order to achieve the above-mentioned effect of installing a halogen bulb,
In order to prevent the screw holder 13 from interfering with the halogen bulb 6 to which it is attached, the screw holder 13 is configured to have a cylindrical shape with both ends open. Of course, the length is such that it does not touch the base of the halogen bulb 6.

Then, the adapter body with the halogen bulb 6 attached,
The incandescent lamp base 4 can be attached to an existing incandescent lamp lighting fixture for lighting use. At this time, the side of the main body near the light source of the halogen bulb 6 is surrounded by the ceramic exterior body 2, and air convection and surface heat radiation are measured by using the opening window 21 and heat radiation fins provided there as necessary. This prevents direct contact with the light bulb and also prevents the exterior body 2 from heating up. However, since the light source is highly heated, the exterior body 2 is also heated considerably, so the base cap 3 is made of a synthetic resin material with low thermal conductivity. By configuring this, it is possible to reduce the adverse effects of conduction heat on the socket portion of the incandescent lamp lighting fixture. On the other hand, when the exterior body 2 and the base cap 3 are integrally constructed from a ceramic material, it is effective in terms of ease of processing.

In addition, by configuring the vertical length of the adapter body to be approximately the length of an incandescent light bulb, it increases compatibility with existing incandescent light bulb lighting equipment and eliminates discomfort during use. It is valid.

Effects of the Invention As described above, according to the adapter of the present invention, the rim of the socket opening for mounting a halogen bulb of the main body with a reflective shade, which has an incandescent bulb cap at one end, is formed on the surface that abuts against the rim of the base for mounting the cap of the light bulb. In addition, with the structure in which the socket metal fitting disposed in the mouth is loosely fitted into the mouth, a halogen light bulb can be used by first attaching it to an incandescent light bulb socket with a different diameter cap, and this halogen light bulb By being compatible with incandescent bulbs, it can be applied to existing incandescent bulb lighting fixtures.In particular, when a halogen bulb is attached to the main body, it can be positioned by matching the lip of the socket with the base of the bulb, so it can be easily applied over time. Even when replacing a halogen light bulb due to breakage due to use, the new light bulb can be installed and positioned very easily and appropriately.
This makes it possible to replace such halogen light bulbs, which require positioning of the light source in relation to the reflector, at any time. Furthermore, this can be achieved with an extremely simple configuration compared to the conventional socket cap structure, which is technically and processing highly sophisticated, and the adapter of the present invention is extremely effective as a truly practical device. It is what it is.

[Brief explanation of drawings]

FIG. 1 is a half-cut side view showing an embodiment of the adapter of the present invention, and FIG. 2 is a partially longitudinal side view showing an enlarged view of the main mechanism in the first embodiment. 1. Reflective shade, 2. Exterior body, 3. Base cap, 4
・Incandescent light bulb cap, 5Φ・Halogen bulb, 7・Fist socket, 8φ・Partition part, 9・・Brim, 10・・Base base,
11. Engagement groove, 13. Screw holder, 140 collar, 1B-. Lead piece, 17. Center electrode, 18Φ
・Center contact piece, 21...Opening window

Claims (7)

[Claims] (1) An interior body having a small-diameter socket opening for attaching a halogen bulb and an exterior body having a large-diameter mounting opening for attaching a reflective shade are constructed of heat-resistant molded material, and the assembly base for both bodies is made of heat-resistant molded material. In a structure in which an incandescent lamp cap is attached to a
An adapter for a halogen light bulb, wherein the rim of the socket opening is formed on a surface that abuts against the rim of the base for attaching the base of the halogen bulb, and a socket fitting disposed inside the socket is loosely fitted into the opening. (2) The adapter for a halogen light bulb according to claim 1, wherein the inner body and the outer body are integrally molded. (3) The adapter for a halogen light bulb according to claim 1, wherein the inner body and the outer body are molded separately and assembled together. (4) The halogen light bulb according to claim 1, wherein the vertical length of the structure is such that the overall length from the base end to the tip of the reflector is approximately the length of an incandescent light bulb. adapter for (5) The adapter for a halogen light bulb according to claim 1, wherein the exterior body is provided with a ventilation opening window and a radiation fin. (6) The halogen light bulb according to claim 1, wherein the socket fitting comprises a cylindrical screw receiver having a flange for hanging, and a fixed elastic center contact piece independent of the receiver. adapter for (7) The adapter for a halogen light bulb according to claim 1, wherein the reflective shade is a dichroic mirror treated with a heat ray transmitting film.