JPS6072109A - Illuminator - 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 [Technical Field of the Invention] The present invention relates to improvements in support structures for bowl-shaped reflectors in lighting equipment.

[Technical background of the invention and its problems]

Conventionally, in a lighting device such as a flashlight, a lamp is disposed in a main body having a light projection window, a reflector enclosing the lamp is formed into a bowl shape with a metal plate, and the lamp is mounted through the bottom of the reflector. A hole is provided, the periphery of the hole is formed with a simple thread, and this threaded cylinder is supported by being screwed into a support member.

If such a conventional reflector is formed by molding from glass or the like and used for a spotlight, the light gathering ability and reflectance of the reflector will be improved, but on the other hand, the threaded part is also molded, so It requires extremely high precision in the mold, which is not only troublesome but also has the disadvantage of poor moldability.

[Purpose of the invention]

The present invention facilitates manufacturing by molding a bowl-shaped reflector that projects the light of the lamp forward, and also enables high-precision molding with a simple mold.Moreover, this improvement may cause new drawbacks. It is an object of the present invention to provide a lighting fixture with an improved support structure that eliminates the problem.

[Summary of the invention]

a pair of locking portions protruding forward from the bottom of the main body having a holding portion protruding from the front;
An elongated mounting in which the inner surface is formed as a reflective surface and the outer surface is held by a holding part on the bottom surface of the bowl-shaped reflector, in which the locking part passes in the longitudinal direction, is a hole, and this mounting is rotated to the inner surface around the hole. An engaging part is provided with which the locking pawl engages, and the lamp that passes through the hole is enclosed in a reflector, so the reflector can be molded using a simple mold and can be held with high precision. did.

[Embodiments of the invention] The details of this development will be explained with reference to illustrated embodiments.

The figure shows an example of a spotlight to which the present invention is applied. In the figure, (1) is a support (not shown) that hangs down from the surface, (2) is a cover held on this support (1), and (
3) is a main body provided in this cover (2), (4) is a collar-shaped holding part formed on the front edge of this main body (3), (
5) is a locking portion protruding forward from the bottom of the main body (3), (6) is a bowl-shaped reflector supported by the holding portion (4) of the main body (3) and the locking portion; is a lamp, for example a halogen bulb, mounted in the socket (8) and inserted into the reflector (6).

As shown in Figure 5, the main body (3) is a cylindrical body made of metal with a bottom, the bottom wall Gυ is attached to the inner surface of the cover (2), and the socket (8) is accommodated within the peripheral wall (3).

As shown in FIG. 6, the locking portion (5) connects the tips of the columns (52) that are erected forward from the base (51) fixed to the inner surface of the bottom wall (3) of the main body (3) in opposite directions. It is formed into a locking claw (53) by bending in the direction, and is located much lower (in the light projection direction) than the holding part (4).

The reflector (6) is formed by molding glass, synthetic resin, etc., and has a paraboloid of rotation reflective surface (61) on its inner surface, and a brim-shaped attached portion (62) on its outer surface to form a holding portion. (4), the rectangular mounting hole (63) is provided on the bottom surface through which the lamp (7) can easily penetrate, and the long axis direction of this hole (63) is in the locking part (5). It has a dimension that allows the locking claw (53) to pass through while facing backward, and the inner surface of the periphery in the short axis direction is engaged with the locking claw (53) when the reflector (6) rotates. (64), and this engaging portion (64).
4) is a locking claw (
53) is tapered to tighten it.

Next, a method for assembling this lighting fixture will be explained.

Attach the main body (3) inside the cover (2) as shown,
Fix the bottom wall (3]). Next, the locking parts (5), (5)
are erected on the bottom wall 01+inner surface of the main body (3) at predetermined intervals, and several sockets (8) are also installed. Then, remove the reflector (6) and attach it to the main body (3) with the hole (63) first.
), and for installation, insert the long axis of the hole (63) in the direction of both locking claws (53), (53), and then insert the locking claws (
53), (53) is installed by inserting the reflector (
6) Enter inside. Then, the supported part of the reflector (6) (
62) comes into contact with the holding part (4) of the main body (3), so if you just rotate the reflector (6) about 90 degrees, the locking claw (53) will come into contact with the holding part (4) of the main body (3).
) and (53) engage with the engaging portions (64) and (64), and are pressed in the light projection direction by the taper to fix the reflector (6).

Therefore, when installing the lamp, pass through the hole (63) and attach it to the socket (8).When disassembling the lamp, operate in the reverse order.

In this way, even though the reflector (6) is manufactured by molding, this lighting fixture simply has an engaging part (64) around the short axis direction of the mounting hole (63), and also has an engaging part (64) on the outer surface. Supported part (62)
It can be supported by simply forming the engaging part (64) and the supported part (62), and high precision can be easily obtained in the height difference between the engaging part (64) and the supported part (62).The mold structure is simple and moldability is good, making it suitable for mass production. In addition, since the body (3) is configured in a cylindrical shape, the reflector (6) can sit comfortably, and even if some of the light from the lamp (when installed) leaks backward through the corner of the mounting hole (63). There is no risk of the lamp being blocked by the main body (3) and leaking to the outside, and the wall surface of the cover (2) will not be heated by the heat radiated from the base of the lamp (4).

Note that the hole (63) for mounting the reflector (6) is not limited to a rectangular shape, but may be any shape having different orthogonal axes, such as an oval shape or an oval shape. Further, the supported portion may be positioned anywhere on the outer surface of the reflector (6).

Further, the locking part (5) may be permanently fixed to the main body (3) by welding or the like, or may be integrally molded.
3) may be provided anywhere. Furthermore, if the locking part (5) is given elasticity to be displaced in the direction in which the reflector (6) enters, the reflector (6) can be more easily attached and detached, making it easier to sit on. Also, the main body (
3) does not require a bottom wall.

For example, as shown in Fig. 7, four pillars (41), (41), etc. are erected on the periphery of the annular body (3), and the tips of the pillars are bent outward to form a claw-shaped holding part. (4) and two pillars (52), (52) on the inner edge of the main body (3).
It is also possible to form a locking pawl (53) by standing upright and bending its tip outward.

Further, the reflector only needs to be bowl-shaped, and its optical properties are not critical.

〔Effect of the invention〕

The lighting device of the present invention includes a pair of locking portions each having a locking claw bent in opposite directions from the bottom of the main body, which has a holding portion protruding from the front, and an elongated hole in the bottom surface. Attachment is accomplished by holding and rotating the outer surface of the reflective bowl in the holding section.The locking pawl of the locking section that enters from the long side direction of the hole engages with the peripheral inner surface in the short axis direction. Even if molded, it can be installed accurately and firmly, and it can be easily mass-produced using a simple mold.

[Brief explanation of the drawing]

FIG. 1 is a side view of one embodiment of the lighting fixture of the present invention, FIG. 2 is a sectional view, FIG. 3 is an enlarged sectional view of the main part, and FIG.
5 is an enlarged perspective view of the holding member, FIG. 6 is an enlarged perspective view of the locking part, and 7 is an enlarged rear view of the main part.
The figure is a perspective view of another example of the main body. (2)...Cover (3)...Body (4)...Holding part (5)...Engagement part (6)...Reflector (51
)...Latching claw (61)...Reflective surface (62)...
Supported part (63) - Mounting hole (64) - Engagement part (force - lamp (8) - Socket Representative Patent Attorney Inoue - Male Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6

Claims (3)

[Claims] (1) For books with a holding part protruding from the front. A pair of locking portions projecting forward from the bottom of the main body and having their tips bent in opposite directions to form locking/claws. The inner surface is formed as a reflective surface, and the outer surface is held by the holding part,
The elongated attachment through which the pair of locking portions pass in the long sleeve direction on the bottom surface is formed on the hole and the inner surface around the hole in the short axis direction, and the locking claw engages with the locking portion when rotated. a bowl-shaped reflector provided with a lamp; and a lamp that is mounted through a hole and enclosed in the reflector. A lighting fixture characterized by comprising: (2) The lighting device according to claim 1, wherein the engaging portion is tapered so as to press the locking pawl forward as the reflector rotates. (3) The lighting device according to claim 1, wherein the main body is formed in a cylindrical shape.