JPH0243284B2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical background of the invention and its problems] As shown in FIG. A chandelier type lamp supporting a plurality of lamps 3 is well known. Since such lighting equipment is large and heavy, it is required to be mounted firmly to the ceiling surface.

The conventional mounting structure is shown in Figures 5 and 6.
In the figure, 4 is the indoor ceiling surface, and 5 is this ceiling surface 4.
It is a recessed hook ceiling installed in the. The hook ceiling 5 consists of a sealing body 6 and an annular mounting bracket 7, and the mounting bracket 7 integrally has a pair of L-shaped supporting pieces 9, 9 on its periphery with a claw 8 erected at its tip. ing. 10 is a mounting ring, and this mounting ring 10 has a pair of notches 1 on the inner peripheral edge.
1, 11 are formed, and an arc-shaped through hole 12... and a pair of screw holes 13, 13 are bored in the plane part, and furthermore, a pair of studs 14, 14 and a hooking part 15, which is cut and raised, are formed on the lower surface. 15 are provided.

A power cord 18 and temporary fastening chains 19, 19 are led out from the upper surface side of the main body 1 of the lighting fixture, and a ceiling cap 20 corresponding to the ceiling body 6 is attached to the tip of the power cord 18. In addition, 21 and 21 are the above-mentioned mounting ring 10
A locking screw that can be screwed into the screw holes 13, 13 of
Reference numerals 2 and 22 designate insertion holes into which the studs 14 and 14 can be inserted, and 23 and 23 designate decorative screws into which the studs 14 and 14 can be screwed.

First, the attachment ring 10 is placed below the hook ceiling 5, and the notches 11, 11 are made to face the support pieces 9, 9. Then, push up the mounting ring 10, insert the support pieces 9, 9 into the notches 11, 11, rotate the mounting ring 10 in this state, and then move the mounting ring 10 downward and insert it into the through holes 12, 12. The claws 8, 8 are advanced, and the inner peripheral edge of the mounting ring 10 is dropped onto the upper surface of the support pieces 9, 9 to support it. Then, screw the locking screws 21, 21 into the screw holes 13, 13 from below the mounting ring 10, and
As shown in FIG. 6, the tips of the mounting rings 10 are brought into contact with the ceiling surface 4, respectively, and the inner circumferential edges of the mounting rings 10 are pressed and locked against the upper surfaces of the support pieces 9, 9 by this contact pressure. After this, the main body 1 of the lighting fixture is placed below the mounting ring 10, and the temporary chains 19, 19 are attached to the hooking part 15,
15 to temporarily fix the main body 1 in a suspended state. In this state, the sealing cap 20 is connected to the sealing body 6. Then, the main body 1 is pushed up, the studs 14, 14 are inserted into the insertion holes 22, 22, decorative nuts 23, 23 are screwed onto the tips of the studs, and the main body 1 is supported by these decorative nuts 23, 23.

However, in such a conventional mounting structure, when the tips of the locking screws 21, 21 are brought into contact with the ceiling surface 4, especially if the ceiling surface 4 is made of a soft material such as gypsum board, the engagement may occur. Set screw 21,
There was a problem in that the tip of the ring 21 easily dug into the ceiling surface 4, making it difficult to stably lock the mounting ring 10, and also damaging the ceiling surface 4. Furthermore, after the main body 1 is attached to the ceiling surface 4, the main body 1 is rotated when the direction of the light fixture is to match the interior of the room.Even in such a case, the locking screw 21 , 21 is the main body 1
Since it rotates integrally with the holder, there is a problem in that the tip of the holder may damage the ceiling surface 4.

[Purpose of the invention]

This invention was made with attention to these points, and its purpose is to always be able to stably lock the mounting ring to the support piece, and to
To provide a ceiling-mounted lighting fixture that is free from the risk of damaging the ceiling surface.

[Summary of the invention]

That is, in this invention, the peripheral edge of a mounting ring is dropped onto the upper surface of a support piece provided on a ceiling surface, a locking screw is screwed into this mounting ring, and the tip of this locking screw is brought into contact with the ceiling surface. A U-shaped protection device in which the mounting ring is pressed and locked against the support piece using contact pressure, and the main body of the lighting fixture is attached to the mounting ring, with leg pieces integrally attached to both ends of the smooth base. While forming a plate, a pair of long slit-shaped slide holes are formed in parallel along the radial direction of the mounting ring, and the legs of the protection plate are inserted into the slide holes from above, and the mounting ring is inserted into the mounting ring. Insert a locking screw toward the lower surface of the base of the protection plate from above, raise the protection plate by screwing this locking screw, and bring the tip of the locking screw into contact with the ceiling surface through this protection plate. This is how it was done.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to FIGS. 1 to 3. It should be noted that since this invention is an improvement in the peripheral portion of the locking screw, only the main portion thereof will be illustrated, and the other portions will be explained using the same reference numerals as shown in FIG. 5.

The mounting rings 10 each have a pair of mounting rings 10 facing each other with the screw holes 13, 13 in between.
A long slit-shaped slide hole 2 along the radial direction of
5... is drilled. Protective plates 26, 26 are attached to the mounting ring 10 through these slide holes 25. This protective plate 26 is made of a metal material, for example, and has leg pieces 2 on both ends of a smooth base 27.
8, 28 integrally formed in a U-shape,
Furthermore, a locking collar 29 is attached to the tip edge of each leg piece 28, 28.
29 is formed by bending. And this protective plate 2
6 is a slide hole 25, while elastically deforming the leg pieces 28, 28 inward from the upper surface side of the mounting ring 10.
25 and is attached to the mounting ring 10 so as to straddle the tip of the locking screw 21 screwed into the screw hole 13.

When the locking screw 21 is screwed forward, the tip of the locking screw 21 comes into contact with the base 27 of the protection plate 26, and the protection plate 26 rises together with the locking screw 21, causing the base 27 to rise. It comes into contact with the ceiling surface 4. The inner peripheral edge of the attachment ring 10 is pressed against the support piece 9 at this contact surface, and the attachment ring 10 is locked to the hook ceiling 5. Thereafter, the main body 1 of the lighting fixture is attached to the ceiling surface 4 in the same manner as described above.

According to such a configuration, the tip of the locking screw 21 does not directly contact the ceiling surface 4, but contacts via the base 27 of the smooth protection plate 26 having a large area, so that the ceiling surface 4 is made of a soft material. To prevent the tip of the locking screw 21 from digging into the ceiling surface 4 of the mounting ring 10, even if the locking screw 21 is the same, so that a constant pressure is always applied to the mounting ring 10 to stably lock the mounting ring 10. is possible,
Moreover, the ceiling surface 4 will not be damaged. Furthermore, a pair of long slit-shaped slide holes 25, 25 are formed parallel to each other along the radial direction of the mounting ring 10, and the leg pieces 28, 28 of the protection plate 26 are inserted into these slide holes 25, 25 for protection. Since the plate 26 is supported, the base 2 of this protective plate 26
The edges on both sides of the base 27 are arranged along the circumferential direction of the mounting ring 10, so that when the mounting ring 10 is rotated to change the direction of the lamp 3, the edges on both sides of the base 27 can be attached to the ceiling. There is no possibility of damaging surface 4. In other words, if the edges of both side edges of the base 27 are arranged at right angles to the circumferential direction of the mounting ring 10, when the protection plate 26 moves in the circumferential direction in response to the rotation of the mounting ring 10, the base The edges of the base portion 27 easily damage the ceiling surface 4, but in this invention, the edges of the base portion 27 are arranged along the circumferential direction of the mounting ring 10, so that such damage does not occur. There are no advantages.

〔Effect of the invention〕

As explained above, according to the present invention, even if the ceiling surface is made of a soft material, the mounting ring can always be stably locked to the support piece, and there is no fear of damaging the ceiling surface. This effect is achieved.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of the main parts showing an embodiment of the present invention, Fig. 2 is a plan view of the mounting ring, Fig. 3 is a perspective view of the protection plate, and Fig. 4 is a typical direct-mounting type. FIG. 5 is an exploded perspective view showing the prior art, and FIG. 6 is a sectional view of the main parts. 1...Body of the lighting fixture, 4...Ceiling surface, 9...
Support piece, 10... Mounting ring, 13... Screw hole, 21
... Locking screw, 26 ... Protection plate.

Claims (1)

[Claims] 1. Drop the periphery of the mounting ring onto the top surface of the support piece provided on the ceiling surface, screw the locking screw into this mounting ring, bring the tip of this locking screw into contact with the ceiling surface, and use this contact pressure to install. In a device in which the ring is pressed and locked to the support piece and the main body of the lighting fixture is attached to this mounting ring, a U-shaped protection plate is formed that has leg pieces integrally on both end edges of the smooth base. On the other hand, a pair of long slit-shaped slide holes are formed parallel to each other in the radial direction of the mounting ring, and the legs of the protection plate are inserted into the slide holes from above, and the protection plate is inserted through the mounting ring. A locking screw is screwed toward the lower surface of the base of the ceiling, and a protective plate is raised by the screwing of the locking screw, and the tip of the locking screw is brought into contact with the ceiling surface through this protective plate. Ceiling-mounted lighting equipment.