JP2015005414A - Lighting fixture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lighting fixture which can make a space of an upper part rather than T-bars minimally indispensable when fixing a fixture main body on the T-bars, and can secure an actual work space between a ceiling face and the lighting fixture.SOLUTION: A lighting fixture 10 comprises: a fixture main body 40 which has a square top plate and a sidewall erected from the peripheral edge of the top plate, and is opened at a floor side; and an attachment leg 30 which is attached to the sidewall for installing the fixture main body 40 to T-bars 20 constituting a system ceiling arranged at a ceiling face. The attachment leg 30 is formed into an L-shape with one side as a fixed part 32 and the other side as a support part 31, an attachment leg fixing part 60 for attaching the attachment let 30 to the sidewall, and an opening 50 for making the support part 31 protrude to the outside from the fixture main body 40 are arranged, and by the attachment motion of the fixed part 32 to the attachment leg fixing part 60 from the inside of the fixture main body 40, the support part 31 is extruded from the opening 50, and the T-bars 20 and the support part 31 are engaged with each other.

Description

  The present invention relates to a lighting fixture.

  Conventionally, it is known that the instrument main body 3 is fixed to the ceiling surface 2 by engaging the instrument main body 3 with the T-bar 1 (see, for example, Patent Document 1;

JP-A-10-289614

  However, when trying to engage the mounting portion 42 provided on the instrument body 3 as described above with the top portion 12 of the T-bar 1, the instrument body 3 is once inclined with respect to the ceiling surface 2 and the adjacent T-bar is disposed. It is necessary to go through one space and then return the instrument body 3 to a horizontal position. Then, by lowering the horizontal instrument body 3 in the vertical direction, the T-bar 1 and the mounting portion 42 are engaged, and the visual instrument body 3 is fixed. If it is such an attachment method, as above-mentioned, the instrument main body 3 had to be once moved on T-bar 1, and the extra space was required above T-bar 1. FIG.

  The present invention was made to solve the conventional problems, and when fixing the instrument body on the T-bar, it is possible to minimize the space above the T-bar. As a result, it aims at providing the lighting fixture which can ensure the actual activity space below a ceiling surface.

  The lighting fixture according to the present invention includes a fixture main body having a square top plate and a side wall erected from the periphery of the top plate, the fixture main body being open to the floor side, and a T bar that constitutes a system ceiling provided on the ceiling surface. In a luminaire provided with a mounting leg provided on the side wall for mounting the mounting leg, the mounting leg is L-shaped with one side as a fixing part and the other side as a supporting part, and fixing the mounting leg for mounting the mounting leg on the side wall And an opening for projecting the support part outward from the instrument body, and the support part is pushed out of the opening part by the operation of attaching the fixing part to the attachment leg fixing part from the inside of the instrument body. It is provided so that a support part may engage.

  Further, in the lighting fixture of the present invention, the fixing portion is provided with a long hole toward the support portion, the mounting leg fixing portion is provided with a female screw, and the female screw is inserted into the long hole through the male screw. When the fixing part is tightened on the instrument body by screwing with the screw, the support part passes through the opening from the inside of the instrument body and is pushed out of the instrument body. It may be provided so as to turn outward from the outside.

  Moreover, in the lighting fixture of this invention, a support part engages with the highest point of the vertical side of the said T-bar, and an opening part may be substantially the same height as the highest point.

  Moreover, the lighting fixture of this invention may have a hook part engaged with the highest point of the vertical side of T-bar at the front-end | tip of a support part.

  In the present invention, a mounting leg that engages with the T-bar is provided on the instrument body, and a support portion that is a part of the mounting leg is provided on the instrument body by an operation of tightening the mounting leg with a screw from the inside of the instrument body. The support portion is engaged with the T-bar by being pushed out from the opening. With this configuration, when the instrument body is attached to the T-bar, it is not necessary to move the entire instrument body to the upper part of the T-bar, and the space above the T-bar can be saved.

Sectional drawing of the lighting fixture of embodiment which concerns on this invention, and T-bar Sectional drawing of the instrument main body of embodiment which concerns on this invention The inner side view of the instrument main body of embodiment which concerns on this invention Side view of mounting leg of embodiment according to the present invention Mounting operation diagram of the embodiment according to the present invention Installation completion diagram of the embodiment according to the present invention

  Hereinafter, embodiments of the present invention will be described with reference to FIGS.

  FIG. 1 is a side view of a luminaire 10 according to the present invention and a T-bar 20 provided on the ceiling. The lighting fixture 10 is used as a lighting fixture for a system ceiling.

  The lighting fixture 10 includes a fixture main body 40, a mounting leg 30, a male screw 90, and a light source accommodating portion 100. Hereinafter, the description will be made sequentially.

  The fixture body 40 has a square top plate and a side wall erected from the periphery of the top plate, and has a shape that opens to the floor when a lighting fixture is installed on the ceiling. In the present embodiment, the top plate and the side wall are integrally formed. However, the top plate and the side wall may be provided as separate parts.

  Moreover, the height from the top plate of the side wall erected on the top plate needs to be high enough to accommodate the power supply unit 70 for supplying power to the light source used in the lighting fixture 10.

  Further, a mounting leg 30 is provided on the side wall of the instrument body 40. The mounting leg 30 is L-shaped, and is composed of a fixed portion 32 and a support portion 31, and the support portion 31 extends from the inside to the outside through an opening 50 provided on the side wall. .

  The lighting fixture 10 is held so as to be fixed on the ceiling surface by fitting the extended mounting leg 30 with the T-bar 20.

  A method for attaching the attachment leg 30 will be described. The fixing portion 32 which is a part of the mounting leg 30 is fixed to the mounting leg fixing portion 60 provided on the inner side wall of the instrument main body 40 by the male screw 90.

  The fixture body 40 has a square top plate and a side wall erected from the periphery of the top plate, and has a shape that opens to the floor when a lighting fixture is installed on the ceiling. The height of the side wall set up here needs to be high enough to accommodate the power supply unit 70 for supplying power to the light source used in the lighting fixture 10.

Although a light source is not shown in FIGS. 1-4, the light source in a present Example assumes LED. However, the light source is not limited to the LED, and may be any light source such as a fluorescent lamp and an organic EL.

  Moreover, the fixing | fixed part 32 is attached to the attachment leg fixing | fixed part 60 provided in the inner side wall of the instrument main body 40, and the support part 31 engages with the support receiving part 21 which is the highest point on the ceiling side of T-bar. Installed.

  The fixture main body 40 is fixed to the T bar 20 by the fixing portion 32 engaging with the support receiving portion 21 of the T bar 20.

  The fixing portion 32 is fixed to a mounting leg fixing portion 60 provided on the inner side wall of the instrument body 40. By fixing the fixing portion 32 to the mounting leg fixing portion 60, the mounting leg 30 is fixed to the instrument body 40. The mounting leg fixing portion 60 is provided with a female screw 91, and the mounting leg 30 can be fixed to the instrument body 40 using the male screw 90. Regarding other fixing methods, any means of generally assumed fixing methods may be employed.

  The instrument body 40 is provided with an opening 50 so that the support portion 31 of the mounting leg 30 can protrude from the inside of the instrument body 40 to the outside.

  The fixing portion 32 of the mounting leg 30 is provided with a long hole 80 that extends in the direction of the support portion 31, that is, along the longitudinal direction. The male screw 90 is passed through the elongated hole 80 and the screw can be fastened to fix the mounting leg fixing portion 60. The process of screwing the mounting leg 30 into the mounting leg fixing portion 60 is shown in FIGS. FIG. 5 shows a process of screwing the mounting leg 30 to the instrument body 40.

  As shown in FIG. 5, the fixing portion 32 of the mounting leg 30 is screwed into the mounting leg fixing portion 60, whereby the support portion 31 is moved downward from above the T bar. Therefore, when the instrument body 40 is mounted on the T-bar, the support part 31 does not protrude from both sides of the instrument body 40, and the instrument body 40 can be lifted to the installation position without tilting the instrument body 40. Since it is not necessary to make the instrument main body 40 slant, it becomes possible to save the space above the support receiving portion 21 as much as possible.

  Further, when the fixing portion 32 is fixed to the mounting leg fixing portion 60, it seems that the head of the male screw 90 moves from the long hole 80 provided in the fixing portion 32 to the bottom.

  FIG. 6 shows a state where the mounting leg 30 is fixed to the mounting leg fixing part 60. In a state where the instrument main body 40 is fixed to the T-bar 20, the height position of the opening 50 provided in the instrument main body 40 is set to be equal to the height of the support receiving portion 21. Since it becomes equal height, the instrument main body 40 can be kept horizontal.

  Further, a hook portion 33 is provided at the tip of the support portion 31. By providing the hook portion 33, the support portion 31 and the support receiving portion 21 are engaged, and the instrument main body 40 can be prevented from dropping due to slight shaking or the like. In order to further improve the function of preventing the fall due to vibration, it is possible to enhance the effect by providing a pad (not shown) for absorbing vibration at the tip of the support portion 31 and the hook portion 33.

  Next, a description will be given of the case where the instrument body 40 is detached from the T bar 20. The mounting leg 30 that supports the instrument body 40 and the T-bar 20 is fixed by at least one male screw 90. That is, by loosening the male screw 90, the support portion 31 is rotated upward by the weight of the instrument body 40. As a result, the hook portion 33 and the support receiving portion 21 are disengaged, and the instrument body 40 can be detached from the T bar 20.

  In this way, by fixing the fixing portion 32 with at least one male screw 90, it is possible to easily attach and detach, and it is an easier detachment function than the conventional fitting type and spring mounting type. Yes. As a result, it becomes easy to change the mounting position of the instrument body 40, such as a layout change.

  The present invention can be utilized when mounting a lighting fixture on a T-bar.

DESCRIPTION OF SYMBOLS 10 Lighting fixture 20 T bar 21 Support receiving part 30 Attachment leg 31 Support part 32 Fixing part 33 Hook part 40 Instrument main body 50 Opening part 60 Attachment leg fixing part 70 Power supply unit 80 Long hole 90 Male screw 91 Female screw 100 Light source accommodating part

Claims (4)

A square top plate,
An instrument body having a side wall erected from the periphery of the top plate;
In a lighting fixture comprising a mounting leg provided on the side wall for mounting the fixture main body on a T-bar constituting a system ceiling,
The mounting leg has a substantially L shape having a fixing part fixed to a mounting leg fixing part provided on the side wall, and a support part engaged with the T bar,
The side wall is provided with an opening for projecting the support portion outward from the instrument body,
A lighting fixture, wherein the fixing portion is attached to the mounting leg fixing portion from the inside of the fixture main body so that the support portion and the T-bar are engaged with each other. The fixing portion is provided with a long hole extending in the longitudinal direction,
The mounting leg fixing part is provided with a female screw,
When the fixing portion is tightened by the instrument main body by screwing with the female screw through a male screw through the elongated hole, the support portion passes through the opening from the inside of the instrument main body and passes through the opening. The lighting apparatus according to claim 1, wherein the lighting apparatus is pushed out of the main body. The support portion engages with a support receiving portion of the T-bar;
The lighting apparatus according to claim 1, wherein the opening is substantially the same height as the support receiving part. The lighting fixture according to claim 1, wherein a hook portion that engages with the support receiving portion is provided at a tip of the support portion.