JPH03116606A - Supporting structure of reflecting shade for lighting fixture - Google Patents

Abstract

PURPOSE:To readily and surely fix a reflecting shade and readily vary the position of the reflecting shade according to the form of a lamp by inserting the locking portion of each arm into the locking hole of the reflecting shade so as to connect the reflecting shade to the main body. CONSTITUTION:A plurality of radially-protruding arms 17 are fixed and supported by a hold ring 15 which is threadedly engaged with the outer peripheral face of a lighting fixture main body 12 to which a lamp 24 is mounted, and one of locking holes 20,21 formed in plural stages through respective portions of a reflecting shade 19 is selected as to the lower end locking portion 18 of each arm 17 so that the reflecting shade 19 is mounted. One of the plural stage locking holes 20,21 formed in advance through respective portions of the reflecting shade 19 correspondingly to the size of the lamp 24 is selected and the lower end locking portion 18 of each arm 17 is inserted therein so that the reflecting shade 19 is hanged and held while being suspended by the locking portion 18. Each arm 17 is fastened and pressed from above the outside of the main body 12 by a ring equipped with a screw so that each arm 17 is fixed and supported to the main body 12. Thus the reflecting shade 19 is readily and surely mounted in a position corresponding to the form of the lamp 24 by operation of loosening and fastening the hold ring 15, whereby during exchange of the lamp 24, etc. workability is enhanced.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a reflective shade for lighting equipment, and particularly relates to a support structure for mounting a reflective shade for high ceiling lighting equipment such as gymnasiums and halls.

[Prior Art] An example of the configuration of a conventional high ceiling lighting fixture is shown in FIG. A socket 2 is fixed to the main body 1, and a lamp 3 is attached to this socket 2.
is installed. Around the socket 2 on the lower side of the main body 1,
A holder 4 is provided which is integrally fixed to the main body 1. A screw is formed on the outer periphery of the holder 4. A ring 5 is screwed onto this holder 4. A reflective shade 6 covering the lamp 3 is held with its upper end sandwiched between the main body 1 and the ring 5. By tightening the ring 5, the reflective shade 6 is firmly fixed and supported on the main body 1.

Another configuration example of a conventional high ceiling lighting fixture is shown in FIG.

In this conventional example, a reflective shade 6 is fixed to the lower side of a holder 7 with screws 8. This holder 7 is a cable pipe 9
It is fixed in the desired vertical position by means of screws 10 or other suitable ramp means.

[Problems to be Solved by the Invention] In the conventional structure shown in FIG. 4, when the wattage and type of the lamp 3 changes and lamps of different sizes and shapes are installed, the center position of the lamp light changes and reflection occurs. In some cases, the center position of the shade 6 is shifted from the designed center position, and a predetermined light distribution characteristic is not achieved, making it impossible to obtain a desired lighting effect.

On the other hand, in the conventional structure shown in Fig. 5, the reflective shade 6 can be moved up and down in response to changes in the lamp shape and center position, so a predetermined light distribution characteristic can be obtained. This poses a problem in that it requires a lot of effort to install and replace, as it requires screws to adjust the vertical position.

The present invention has been made in view of the above-mentioned drawbacks of the prior art, and provides a reflective shade for lighting equipment in which the reflective shade can be easily and reliably fixed and the position of the reflective shade can be easily changed according to the shape of the lamp. The purpose is to provide a support structure for

[Means for Solving the Problems] In order to achieve the above object, a support structure for a reflective shade for a lighting device according to the present invention includes a main body on which a lamp is mounted, and a plurality of lamps projecting radially downward and outward from the main body. arm, a locking part formed at the lower end of each arm, and a reflective shade having a plurality of locking holes in the vertical direction corresponding to each arm, and the locking hole of the reflective shade is provided with the locking part formed at the lower end of each arm. The reflective shade is connected to the main body by inserting the locking part of the arm.

[Function] Depending on the size of the lamp, select one of the multiple locking holes formed in advance on the reflective shade, insert the lower end locking part of each arm, hook the reflective shade, and hold it suspended. . Each arm is fixedly held against the main body by, for example, being tightened and pressed by a threaded ring from the upper part of the outside of the main body.

[Embodiment] Fig. 1 is a sectional view of a support structure for mounting a reflective shade of a high-ceiling lighting fixture according to the present invention, and Fig. 2 is a perspective view thereof.

The main body 1 is attached to the cable vibe 11 attached to the ceiling surface 10.
2 is fixed. A screw 13 is formed on the outer periphery of the main body 12. Further, an annular support flange 14 is integrally provided at the lower part of the main body 12.

A presser ring 15 is attached to the upper side of the support flange 14 and is screwed onto the screw 13 of the main body 12.

An arm 17 for supporting the reflective shade is held between the presser ring 15 and the support flange 14. The arm 17 has a bent end 25 formed at its upper end, and a locking portion 18 bent inward at its lower end. As shown in FIG. 3, the support flange 14 of the main body 12 has, for example, three holes 16 for arm attachment. The bent end portion 25 of the arm 17 is inserted into the sixth hole 16. In this state, by tightening the aforementioned retainer ring 15, the arm 17 is firmly fixed and held on the main body 12 in a state in which it protrudes outward and diagonally downward from the main body 12. Reference numeral 19 denotes a reflective shade, and this reflective shade 19 is formed with locking holes 20 and 21 for arm attachment in two stages, upper and lower, at positions corresponding to the respective arms 17. The drawing shows a state in which the lower end locking portion 18 of the arm 17 is inserted into the upper locking hole 20, and the reflective shade 19 is hooked and held suspended. A socket 23 is fixed to the main body 12 and a lamp 24 is attached thereto. A space 22 open to the outside air is formed between the lower surface of the main body 12 and the upper surface of the reflective shade 19, and the root portion of the lamp 24 is ventilated.

In the lighting fixture with the above configuration, when replacing the lamp 24 and installing a smaller lamp, the lower end locking portion 18 of the arm 17 is removed from the upper locking hole 20 and the reflector 19 is removed.
is removed from the arm 17, and the lower end locking portion 18 of the arm 17 is inserted into the locking hole 21 on the lower side of the reflective shade 19. As a result, the reflective shade 19 is supported at a position moved upward to align with the center of the lamp.

When attaching and detaching the reflective shade 19, each arm 17 can be easily expanded outward by loosening the holding ring 15, and the lower end locking portion can be easily attached and detached. Further, by tightening the presser ring, each arm 17 is urged inward to press and hold the reflective shade 19 fixedly.

[Effects of the Invention] As explained above, in the reflective shade support structure according to the present invention, a plurality of radially protruding arms are fixedly supported by a retaining ring that is screwed onto the outer circumferential surface of the appliance body on which the lamp is attached. , Since the lower end of this arm is configured to be attached to the lower end of the arm by selecting one of the locking holes formed in multiple stages on the reflective shade, it can be easily and securely installed by loosening and tightening the presser ring. The reflective shade can be attached at a position that matches the lamp shape, improving work efficiency when replacing lamps. Further, since an open space is formed between the lower surface of the main body and the upper surface of the reflective shade, the heat dissipation effect of the lamp can be obtained.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional view showing the structure of a high-ceiling lighting fixture according to the present invention, FIG. 2 is a perspective view of the lighting fixture in FIG. 1, and FIG. 3 is an exploded perspective view of essential parts of the lighting fixture in FIG. 1. , FIG. 4, and FIG. 5 are sectional views showing different examples of conventional lighting equipment. 10: Ceiling, 12: Main body, 13: Screw, 14: Support flange, 15:
Holding ring, 17; Arm, 18: Locking part,
19: Reflective shade, 20.21: Locking hole, 24: Lamp.

Claims (1)

[Claims] A main body on which a lamp is mounted, a plurality of arms protruding diagonally downward and outward from the main body, a locking portion formed at the lower end of each arm, and a plurality of locks in the vertical direction corresponding to each arm. 1. A support structure for a reflective shade for a lighting device, comprising: a reflective shade having a stopper hole, and a locking part of the arm is inserted into a locking hole of the reflective shade to connect the reflective shade to the main body.