JP2017050127A - Lighting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problems that since an adapter is prevented from falling to an indoor side only by engagement of a locking arm with the reverse face of a ceiling in a conventional lighting device, the adapter cannot be adhered to a ceiling, especially, in the case of attaching to a ceiling in a bathroom, moisture passes a gap between a fittig hole and an adapter and comes around behind a ceiling when the adapter is not adhered to a ceiling.SOLUTION: A lighting device is such that: a longitudinal screw rod is provided in the insertion direction of a fitting hole inside an adapter; a stopper piece which swings from the inside to the outside of the adapter when rotating clockwise the screw rod from an indoor side, and moves to an indoor side along the screw rod is screwed into the screw rod; and when rotating clockwise the screw rod in a state of inserting the adapter into the fitting hole, the adapter adheres to a ceiling by sandwiching a ceiling by an edge on an indoor side of the adapter and the stopper piece.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a lighting device called a ceiling light that is fixed to a mounting hole formed in a ceiling.

  This type of conventional lighting device is known to be composed of an annular adapter that is fixed to a mounting hole formed in the ceiling, and a lighting device body that is inserted into the adapter and connected to the adapter ( For example, see Patent Document 1). As a mechanism for fixing this adapter to the mounting hole, a locking arm made of a spring plate extending in the shape of an eight is provided on the outside of the adapter so that the adapter can be mounted from the indoor side to the mounting hole. Is inserted into the mounting hole, the locking arm expands on the back side of the ceiling and engages with the back surface of the ceiling, so that the adapter does not fall into the room.

Japanese Patent Laying-Open No. 2008-34185 (FIG. 5)

  In the above-described conventional lighting device, the adapter cannot be brought into close contact with the ceiling because the locking arm only engages with the back surface of the ceiling so that the adapter does not fall into the room. In particular, when such a lighting fixture is attached to the ceiling of a bathroom, if the adapter is not in close contact with the ceiling, there is a problem in that moisture passes around the back side of the ceiling through the gap between the attachment hole and the adapter.

  In order to solve such a problem, it is also conceivable that the adapter is brought into close contact with the ceiling by locking the screw portion to the outer peripheral surface of the adapter and screwing the nut member to the screw portion of the adapter on the back side of the ceiling. It is done. However, with such a configuration, the nut member must be screwed into the adapter on the back side of the ceiling, and further the nut member must be rotated and tightened. .

  Then, this invention makes it a subject to provide the illuminating device which can adhere | attach an adapter on a ceiling only by the operation | work from the indoor side in view of said problem.

  In order to solve the above problems, an illumination device according to the present invention is an illumination device comprising an annular adapter fixed to a mounting hole formed in a ceiling and an illumination device main body fixed to the adapter. A long screw rod is provided in the direction of insertion into the mounting hole. When this screw rod is rotated clockwise from the indoor side, it swings from the inside to the outside of the adapter, and further along the screw rod to the indoor side. The stopper piece that moves toward the screw is screwed into the screw rod, and when the screw rod is turned clockwise with the adapter inserted into the mounting hole, the indoor edge of the adapter and the stopper piece The adapter is configured to be fixed to the ceiling with the ceiling interposed therebetween.

  Since the stopper piece is positioned inside the adapter when the adapter is inserted into the mounting hole, it does not interfere with the insertion of the adapter into the mounting hole. And after inserting the adapter into the mounting hole, the stopper piece moves to the outside of the adapter by rotating the screw rod from the indoor side, and further moves toward the indoor side. The adapter can be brought into close contact with the ceiling by sandwiching the ceiling with the stopper piece.

  The adapter is formed with a support portion that supports the screw rod, and it is desirable that the end portion of the support portion functions as a stopper that prevents the lighting device body from dropping out into the room.

  As is clear from the above description, the present invention allows the adapter to be in close contact with the ceiling only by work from the indoor side, thus reducing the number of adapter installation steps in the field where the adapter needs to be in close contact with the ceiling. be able to.

The perspective view which looked at the illuminating device attached to the ceiling from the back side of the ceiling Adapter before installation on the ceiling View of the adapter before it is mounted on the ceiling as seen from below The side view which shows the state which unites an illuminating device main body with the adapter attached to the ceiling

  Referring to FIG. 1, reference numeral 1 is an example of a lighting device according to the present invention. This lighting device 1 is an annular adapter 2 fixed to the ceiling C, and a lighting device main body (hereinafter simply referred to as a main body) 3 held by the adapter 2 by being inserted into the adapter 2 from the indoor side and further rotated. It consists of and.

  2 and 3, the adapter 2 has a flange-like projecting portion 21 formed at the lower end and a support portion 22 formed at the upper portion. A screw rod 23 is supported on the support portion 22 in the vertical direction. The screw rod 23 can be rotated from the indoor side in the downward direction, that is, in a state where the adapter 2 is inserted into the mounting hole of the ceiling C.

  A stopper piece 4 made of sheet metal is screwed onto the screw rod 23. When the screw rod 23 is rotated clockwise from the indoor side, the stopper piece 4 is rotated together with the screw rod 23 by a frictional force generated between the stopper piece 4 and the screw rod 23. Since a window hole 24 is formed in the support portion 22, when the stopper piece 4 rotates together with the screw rod 23, the stopper piece 4 moves to the outside of the support portion 22 through the window hole 24. Since no further window hole is formed on the opposite side of the window hole 24 across the screw rod 23, when the stopper piece 4 passes outside the support part 22 through the window hole 24, the outer surface of the support part 22. It will not be able to rotate any more after coming into contact with If the screw rod 23 is further rotated, the stopper piece 4 cannot be rotated, so that it moves in parallel downward.

  Therefore, the pressing portion 41 of the stopper piece 4 comes into contact with the back surface of the ceiling C, and the ceiling C is sandwiched between the protruding portion 21 of the adapter 2 and the pressing portion 41 from above and below. The overhanging portion 21 comes into close contact with the indoor side surface of the ceiling C as a reaction to be pressed from above.

  As shown in FIG. 4, the main body 3 is attached to the adapter 2 by inserting the main body 3 into the adapter 2 fixed to the ceiling C from below, that is, from the indoor side, and rotating the main body 3 at the insertion end. .

  When the main body 3 is rotated, the locking portion 31 of the main body 3 is positioned above the stopper portion 22a, which is the upper end of the support portion 22 of the adapter 2, and the main body 3 should fall out of the adapter 2 by any chance. Even if it tries, it was made to prevent that the latching | locking part 31 contact | abuts to the stopper part 22a, and the main body 3 falls down.

  In addition, this invention is not limited to an above-described form, You may add a various change in the range which does not deviate from the summary of this invention.

DESCRIPTION OF SYMBOLS 1 Illuminating device 2 Adapter 3 Illuminating device main body 4 Stopper piece 21 Overhang | projection part 22 Support part 22a Stopper part 23 Screw rod 24 Window hole 31 Locking part 41 Holding part C Ceiling

Claims (2)

  In a lighting device comprising an annular adapter fixed to a mounting hole formed in a ceiling and a lighting device main body fixed to the adapter, a long screw rod is provided inside the adapter in the direction of insertion into the mounting hole. When this screw rod is rotated clockwise from the indoor side, the stopper piece that swings from the inside to the outside of the adapter and moves toward the indoor side along the screw rod is screwed onto the screw rod. If the screw rod is turned clockwise with the adapter inserted in the mounting hole, the adapter is fixed to the ceiling with the edge between the indoor edge of the adapter and the stopper piece. An illuminating device characterized by being configured.   The adapter is formed with a support portion for supporting the screw rod, and an end portion of the support portion is configured to function as a stopper for preventing the lighting device body from dropping out to the indoor side. The lighting device according to claim 1, wherein

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