JPH10144124A - Shade to be used in luminaire - Google Patents

Abstract

PROBLEM TO BE SOLVED: To constitute a shade to be used in a luminaire with a few parts and attempt labor saving in an assembling process. SOLUTION: A light transmitting part 4 and a fitting structure 5 which constitute a shade are formed integrally, and the fitting structure 5 is consisted of a board protrusion 51, a groove structure 53 which is formed along it, and an inclined part 52 which is formed continuously on the bottom of the groove structure 53. The depth in both ends of the groove structure 53 becomes shallower gradually by the inclined part 52.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a light-transmitting shade which is mounted on a mounting surface such as a ceiling and is used by being mounted on a lighting fixture body provided with a lighting lamp.

[0002]

2. Description of the Related Art Heretofore, as a detachable structure of a lighting fixture body provided with an illumination lamp and mounted on a mounting surface such as a ceiling and a shade, the lighting fixture body is urged to protrude in a radial direction. In some cases, a raised and retractable member is provided, and a locking projection is formed on the inner peripheral surface of the shade.

At the tip of the retractable member, an inclined surface is formed on the shade side, and when the shade is installed, the inclined surface is pushed while being pushed by a protruding portion. Once installed, the retractable member that stops the shade is hidden inside the shade, so it is difficult to operate the retractable member to remove the shade. Has been adopted.

[0004] For that purpose, the following special structure is required. For example, there is a case in which a notch is formed in a part of a shading projection part formed on a shade, instead of the whole circumference. In this method, the shade is turned so that the position of the retractable member coincides with the position of the notch, and the shade is removed. Also,
For example, there is a configuration in which the protrusion member formed on the inner peripheral surface of the shade is gradually formed shallow so that the retractable member is pushed in when the shade is turned.

[0005]

For the above structure, it is necessary to form a protrusion on the inner peripheral surface of the shade, but the protrusion and the light-transmitting portion of the shade need to be doubled. Because of this, it could not be released by mold molding, and could not be manufactured. Therefore, the projecting portion is formed on a separately manufactured light-impermeable member, and the light-impermeable member is fixed to the light-impermeable member. In addition, the light-impermeable member has a three-part structure in order to be mounted on the shade main body made of the light-transmissive member. Labor saving was difficult, and this was a major bottleneck in cost reduction. Also, it was difficult to propose a new design.

An object of the present invention is to configure a shade with a small number of parts and to save labor in an assembling process.

[0007]

According to the present invention, there is provided a shade provided with a light-transmitting portion, which is mounted on a mounting surface such as a ceiling and mounted on a lighting fixture body provided with a lighting lamp.
A protrusion is provided on the inner peripheral surface of the mounting portion of the shade, and a protruding / retracting member urged to protrude in the radial direction is disposed on the lighting fixture main body. A wedge-shaped member having an inclined surface formed on the mounting surface side and a substantially flat portion formed on the mounting surface side is formed, and when the shade is pressed against the mounting surface side for mounting, the projecting portion presses the inclined surface of the retractable member. By inserting the retractable member into the shade, the retractable member can be mounted and, after mounting, the projection portion is hung by the substantially flat portion of the wedge-shaped member of the retractable member. Is configured to be integrally formed with the light transmitting portion.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of a shade according to the present invention will be described with reference to the drawings. As shown in FIG. 1, a lighting fixture 1 fixed to a mounting surface P such as a ceiling.
The shade 3 according to the present invention is mounted on the lighting fixture body 2. The lighting fixture main body 2 includes a lighting lamp such as a fluorescent lamp and a lighting mechanism such as a switch. It should be noted that electric lights and lighting mechanisms are omitted in each figure.

The shade 3 is formed by integrally molding a translucent plastic translucent portion 4 formed into a bowl shape and a mounting structure 5 formed on the inner peripheral surface of the mounting portion.

The mounting structure 5 includes a plate-like protrusion 51 substantially parallel to the mounting surface P, and an inclined portion 52 disposed along the protrusion 51.
It is composed of Such mounting structures 5 are formed at three locations around the entire circumference of the shade 3. In the vicinity of the outer periphery of the lighting fixture main body 2, three members 6 are provided at three locations around the entire periphery. The retractable member 6 is supported by a box 61 fixed to the lighting fixture main body 2 so as to be able to protrude and retract, and is urged in a radial direction by a spring built in the box 61.

The tip of the retractable member 6 is formed in a wedge shape with an inclined surface 62 formed on the shade side and a substantially flat portion formed on the mounting surface P side.

FIG. 2 is an enlarged perspective view of the mounting structure 5, in which the light transmitting portion 4 and the mounting structure 5 constituting the shade 3 are integrally formed. The groove-shaped structure 53 is formed along the groove-shaped structure 53, and the inclined portion 52 is formed continuously on the bottom surface of the groove-shaped structure 53.
Note that the depth of both end portions of the groove-shaped structure 53 is gradually reduced by the inclined portion 52.

The cutout portion 54 is a cutout hole of a mold formed when the projecting portion 51 is formed. In order to cover the cutout portion 54, an annular opaque cover 7 is attached as shown in FIG.

In the above configuration, when the shade 3 is mounted, the inclined surface 62 of the retractable member 6 is
By pressing by 51, the retractable member 6 is pushed up and mounted while being pushed toward the center. Once mounted, the retractable member 6 advances in the radial direction and supports the projection 51 of the shade 3 on a substantially flat surface, so that the shade 3 does not come off from the lighting fixture body 2.

Since the mounting structure 5 is hidden by the opaque cover 7, the appearance is prevented from being impaired.

Next, when the shade 3 is to be removed, when the shade 3 is rotated, the tip of the retractable member 6 becomes inclined.
It is gradually pushed in by 52 and detaches from the protruding part 51 to reach the notch 55. In this notch portion 55, there is no member to be engaged, such as a protruding portion, so that the shade 3 easily comes off.

It is to be noted that the mounting structure may be constituted by the projecting portion and the cutout portion without forming the inclined portion. The retractable member 6
Is not limited to three, but may be two or four or more.

[0018]

As described above, according to the present invention, a convenient shade that can be attached by simply pushing it in and removed by simply turning it can be constituted by a small number of parts, so that the labor of the assembling process can be saved. An effect is obtained that a lighting fixture having excellent design properties can be manufactured and provided at low cost.

[Brief description of the drawings]

FIG. 1 is a partial cross-sectional view of a mounted state of a lighting fixture provided with a shade according to the present invention.

FIG. 2 is a perspective view of a portion of the shade of the present invention before assembly.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Lighting fixture 2 Lighting fixture main body 3 Shade 4 Translucent part 5 Mounting structure 51 Projection part 6 Projecting member

Claims (1)

[Claims] 1. A shade provided with a light-transmitting portion, which is mounted on a mounting surface such as a ceiling and mounted on a lighting fixture main body provided with an illuminating lamp. The lighting fixture body is provided with a retractable member urged to protrude in a radial direction, and an inclined surface is formed on a shade side at a tip end of the retractable member, and a substantially flat portion is formed on a mounting surface side. When the wedge-shaped member is formed, and the shade is pressed against the mounting surface side and mounted, by pressing the inclined surface of the retractable member by the protrusion, the retractable member is pushed in and mounted. In a shade for use in a lighting fixture configured to lock the protrusion by a substantially flat portion of a wedge-shaped member of a protruding and retractable member after mounting, the protrusion is integrally formed with the light-transmitting portion. Shade used in luminaires.