JP2018014281A - Lighting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lighting device which can prevent formation of a gap between a ceiling material and the lighting device.SOLUTION: A lighting device is attached to a T bar and includes: a light source unit which emits light; a device body which houses the light source unit; an attachment member which is attached to the device body and hooks on the T bar; and a cover member which is slidably attached to a lower edge of the device body and covers a gap between the lower edge of the device body and the T bar.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a lighting apparatus installed on a system ceiling.

  Conventionally, when a lighting fixture is fixed to a system ceiling in which a T-bar is assembled in a lattice shape, it has been proposed to use an attachment member that hooks on the end surface of the fixture main body from above the T-bar (for example, see Patent Document 1). Patent Document 1 discloses a lighting fixture in which an attachment member is fixed to an end face in the longitudinal direction of an appliance main body, and the attachment member is attached by being hooked on a T-bar.

JP 2010-135179 A

  However, when the lighting fixture is attached to the ceiling using an attachment member as in Patent Document 1, there may be a gap between the T-bar or the ceiling material installed on the ceiling and the fixture body.

  The present invention has been made to solve the above-described problems, and provides a lighting fixture that can prevent a gap from being generated between the lighting fixture and a T-bar or a ceiling material. Objective.

  A lighting fixture of the present invention is a lighting fixture attached to a T-bar, a light source unit that emits light, an appliance main body that houses the light source unit, an attachment member that is attached to the fixture main body and hooked on the T-bar, A cover member is slidably attached to the lower edge of the instrument body and includes a cover member that closes between the lower edge of the instrument body and the T-bar.

  According to the lighting fixture of the present invention, when the mounting member is hooked on the ceiling material, the sliding member slides to fill the gap between the fixture main body and the ceiling material, so that the gap between the lighting fixture and the ceiling material is reached. It is possible to prevent a gap from being generated.

It is a perspective view which shows a mode that the lighting fixture which concerns on Embodiment 1 of this invention was attached to the ceiling. It is a perspective view which shows an example of the lighting fixture which concerns on Embodiment 1 of this invention. It is a disassembled perspective view of the lighting fixture of FIG.1 and FIG.2. It is a perspective view which shows a mode that the lighting fixture which concerns on Embodiment 1 of this invention is attached to T bar. It is a perspective view which shows the periphery of the side surface in the lighting fixture which concerns on Embodiment 1 of this invention. It is a disassembled perspective view which shows the periphery of the side in the lighting fixture of FIG.4 and FIG.5. It is a figure which shows the operation example when the lighting fixture which concerns on Embodiment 1 is attached to T-bar. It is a figure which shows the operation example when the lighting fixture which concerns on Embodiment 1 is attached to T-bar. It is a figure which shows the operation example when the lighting fixture which concerns on Embodiment 1 is attached to T-bar. It is a perspective view which shows a mode that the lighting fixture which concerns on Embodiment 2 of this invention is attached to T bar. It is a perspective view which shows the periphery of the side surface in the lighting fixture which concerns on Embodiment 2 of this invention. It is a disassembled perspective view which shows the periphery of the side in the lighting fixture of FIG.10 and FIG.11.

Embodiment 1 FIG.
Hereinafter, embodiments of the lighting apparatus of the present invention will be described with reference to the drawings. 1 is a perspective view showing a state in which a lighting fixture according to Embodiment 1 of the present invention is attached to a ceiling, FIG. 2 is a perspective view showing an example of the lighting fixture according to Embodiment 1 of the present invention, and FIG. FIG. 3 is an exploded perspective view of the lighting apparatus of FIGS. 1 and 2. The lighting fixture 1 in FIGS. 1 to 3 is installed on a system ceiling in which, for example, T bars are assembled in a lattice shape, and has a fixture main body 2 and a light source unit 3 accommodated in the fixture main body 2. .

  The instrument body 2 has a long shape that is concave and has an XY cross section that is substantially rectangular. A light source unit 3 is attached to the inner surface 2a of the instrument body 2, and light is irradiated from the open side. In addition, the shape of the instrument main body 2 can employ | adopt various shapes, for example, may have a rectangular parallelepiped shape. The light source unit 3 includes, for example, an LED board on which LEDs that emit light are mounted in the longitudinal direction (arrow X direction), a power supply unit that supplies power to the LEDs, and a cover that covers the LED board and the power supply unit. Yes.

  An attachment member 10 for attaching the instrument body 2 to the T bar B is fixed to the side surface 2S on the short side of the instrument body 2. FIG. 4 is a perspective view showing a state where the lighting fixture according to Embodiment 1 of the present invention is attached to the T-bar, and FIG. 5 is a side view of the lighting fixture according to Embodiment 1 of the present invention. FIG. 6 is an exploded perspective view showing the periphery of the side surface of the lighting apparatus of FIGS. 4 and 5. As shown in FIGS. 4 to 6, the attachment member 10 is attached to the back surface 2 b of the instrument body 2, extends downward from the attachment base 11, and is located on the side surface 2 </ b> S side of the instrument body 2. It has a bent portion 12 and an engaging portion 13 that protrudes outward from the bent portion 12 and is engaged with an enlarged portion BT provided at the upper portion of the T bar B at the lower edge. The attachment base portion 11 and the locking portion 13 are integrally formed by, for example, bending.

  The attachment base 11 is attached to the back surface 2b of the instrument body 2, and a fixing hole 11H into which a fixing member BL such as a screw is inserted is formed. On the other hand, as shown in FIG. 6, the instrument body 2 is formed with a through hole 2H extending in the longitudinal direction (arrow X direction). And the fixing member BL penetrates the through-hole 2H from the inner surface 2a side of the instrument main body 2, and is fixed to the fixing hole 11H. Thereby, the attachment member 10 is slidably attached in the longitudinal direction (arrow X direction) along the through-hole 2H of the instrument main body 2.

  The bent portion 12 has a shape extending in the vertical direction (arrow Z direction) from the attachment base portion 11 along the side surface 2S. In addition, the bending part 12 should just be the shape extended below, and may have the shape extended below while inclining. The locking part 13 has a shape protruding in the longitudinal direction (arrow X direction) from both side edges of the bent part 12. And the lower edge part of the latching | locking part 13 hits T bar B, and the lighting fixture 1 is hooked on T bar B. FIG.

  A protruding portion 14 that protrudes downward is provided at the tip of the lower edge of the locking portion 13, and the protruding portion 14 is hooked on the side surface of the enlarged portion BT of the T bar B. Thereby, it can prevent that the latching | locking part 13 shift | deviates to a longitudinal direction (arrow X direction). Furthermore, a protruding piece 15 that protrudes below the locking portion 13 is provided below the bent portion 12. And the recessed part is formed between the projection part 14 and the protrusion piece 15, and the attachment member 10 can be reliably hooked on T-bar B in the state which the expansion part BT of T-bar B got stuck in the recessed part.

  The lighting fixture 1 includes a cover member 20 that is slidably attached to a lower edge portion of the fixture body 2 and closes between the lower edge of the fixture body 2 and the T bar B. The cover member 20 includes a slide part 21 slidably attached to the instrument main body 2 and a cover main body 22 fixed to the slide part 21. The slide part 21 is made of a plate-like member formed in a step shape.

  Here, the opening 2X is formed in the side surface 2S of the instrument main body 2, and the upper part of the slide part 21 is inserted from the opening 2X and attached to the inner surface 2a. Further, an elongated hole 21H extending in the longitudinal direction (arrow X direction) is formed on the upper side of the slide portion 21. Then, a fixing member BL such as a screw passes through the long hole 21 </ b> H and the through hole 2 </ b> H and is inserted into the fixing hole 11 </ b> H of the attachment base 11. Then, the slide part 21 is slidably attached in the longitudinal direction (arrow X direction) along the long hole 21H. Thus, by fixing the cover member 20 to the attachment member 10, the cover member 20 can be reliably fixed without being detached from the instrument body 2. In addition, although the case where the slide part 21 is attached to the attachment base part 11 is illustrated, a hole may be provided in the instrument main body 2 and the instrument main body 2 may be slidably attached.

  The slide part 21 extends to the lower edge of the side surface 2S of the instrument main body 2, and a cover main body 22 formed in a substantially L-shaped cross section is fixed to the lower part of the slide part 21. The cover main body 22 has the same length as the short side (arrow Y direction) of the instrument main body 2, for example, and is positioned so as to overlap the lower edge of the side surface 2S of the instrument main body 2. When the slide part 21 slides in the longitudinal direction (arrow X direction), the cover body 22 also slides in the longitudinal direction (arrow X direction). Then, the area covered by the cover main body 22 moves to the T bar B side, and the cover main body 22 covers the gap between the instrument main body 2 and the T bar B. In particular, a flange portion 2L protruding outward is provided at the lower edge of the side surface 2S of the instrument body 2, and the contact area between the cover body 22 and the instrument body 2 is widened.

  The cover main body 22 is provided with a stopper portion 23 protruding to the T bar B side. The stopper portion 23 is formed, for example, by bending both ends of the cover body 22. When the stopper portion 23 slides in the longitudinal direction (arrow X direction), the tip of the stopper portion hits the web (vertical portion) BW of the T-bar B and restricts the sliding operation. Here, the width of the stopper portion 23 in the sliding direction (arrow X direction) is shorter than the width of the flange portion BF of the T bar B. Therefore, when the stopper portion 23 hits the web BW of the T bar B, the tip of the cover main body 22 is placed and held on the flange portion BF.

  Further, the upper end of the stopper portion 23 has substantially the same height as the lower side of the web BW of the T bar B, and when the stopper portion 23 hits the web BW of the T bar B, the upper end of the stopper portion 23 is Is in contact with the lower side of the enlarged portion BT of the T bar B. Then, the upper end of the stopper portion 23 is locked to the enlarged portion BT of the T bar B, and the floating is prevented.

  Thus, when the cover main body 22 covers the gap D between the instrument main body 2 and the T bar B, the cover main body 22 supports the lower side of the instrument main body 2 and the stopper portion 23 is the flange portion BF of the T bar B. It will be in the state supported by. In other words, the cover main body 22 holds the inner surface 2a of the instrument main body 2 through the slide portion 21 so as to push it up. Therefore, the lighting device 1 can be reliably fixed to the T bar B by the cover member 20 cooperating with the mounting member 10 described above. In addition, when the width of the cover main body 22 is formed substantially the same as the width W (see FIG. 3) between the T bars B, the stopper portion 23 also functions as a slide guide.

  7-9 is a figure which shows the operation example when the lighting fixture which concerns on Embodiment 1 is attached to T-bar, and the attachment method of the lighting fixture 1 is demonstrated with reference to FIGS. 7A, FIG. 8A, and FIG. 9A are side views of the lighting fixture 1 as viewed from the side, and FIG. 7B, FIG. 8B, and FIG. FIG. 7C, FIG. 8C, and FIG. 9C are perspective views of the luminaire 1 as viewed from the back.

  First, as shown in FIGS. 7A to 7C, the entire lighting fixture 1 is lifted above the T bar B. Thereafter, as shown in FIGS. 8A to 8C, the attachment member 10 slides in the longitudinal direction (arrow X direction) so that the locking portion 13 is positioned on the T bar B. When the entire lighting fixture 1 is lowered, the enlarged portion BT of the T bar B is locked in a state of being sandwiched between the protruding portion 14 and the protruding piece 15. Here, a gap D is generated between the instrument body 2 and the T bar B by the amount of sliding of the attachment member 10 (see FIG. 4).

  Therefore, as shown in FIGS. 9A to 9C, the cover member 20 slides toward the T bar B and closes the gap D between the instrument body 2 and the T bar B. At this time, the cover main body 22 supports the lower side of the instrument main body 2 and is supported by the flange portion BF of the T bar B. At this time, the upper end of the stopper portion 23 is locked to the enlarged portion BT of the T bar B.

  According to the first embodiment, when the mounting member 10 is hooked on the T bar B, the cover member 20 slides, so that the cover main body 22 causes the gap D between the instrument main body 2 and the T bar B or the ceiling material. It can block | close and can prevent that a clearance gap produces between the instrument main body 2, T-bar B, and a ceiling material.

  In addition, since the attachment member 10 is slidably attached to the fixture body 2, depending on the attachment position of the illumination fixture 1, it is possible to prevent the occurrence of a problem that the illumination fixture 1 cannot be attached to the T-bar B. Can do. That is, the system ceiling is fixed by the suspension bolt. For this reason, like the conventional lighting fixture, when the attachment member is being fixed to the side surface of the fixture main body, depending on the attachment position of the lighting fixture 1, the attachment member 10 and a suspension bolt will interfere, and the lighting fixture 1 is made. It may not be possible to install. On the other hand, in the luminaire 1 described above, since the attachment member 10 is slidably attached, the luminaire 1 can be attached to the T-bar B while avoiding interference with a suspension bolt or the like. Moreover, since the latching | locking part 13 mounted on the expansion part BT of T bar B is formed in plate shape, it can make it easy to avoid a suspension bolt and can make it difficult to interfere.

  Furthermore, the attachment member 10 is attached to the back surface of the instrument main body 2, the bent base 12 extends downward from the attachment base, and is disposed on the side surface 2S side of the instrument main body 2, and is attached to the outside of the bent part. The mounting member 10 supports from the back surface 2b side of the instrument main body 2 so that the instrument main body 2 is attached to the T bar B. It can be fixed securely.

  Further, when a protrusion 14 projecting downward is provided at the tip of the lower edge of the locking part 13, the locking part 13 is prevented from being displaced from the T bar B, and the instrument body 2 is moved to the T bar. B can be securely fixed to B. Similarly, when a protruding piece 15 protruding below the locking portion 13 is provided on the lower side of the bent portion 12, the protruding piece 15 is prevented from shifting from the T-bar B, and the instrument body 2 Can be securely fixed to the T-bar B.

  Furthermore, the cover member 20 is slidably attached to the instrument main body 2, and is fixed to the slide part 21 extending from the attachment position with the instrument main body 2 to the lower edge of the side surface 2 </ b> S, and the lower edge of the slide part 21. The cover member 20 is supported from the lower side of the fixture body 2 and securely installs the lighting fixture 1 on the T-bar B. be able to. In particular, when the flange portion 2L projecting outward is provided at the edge of the side surface 2S of the fixture body 2, the contact area between the fixture body 2 and the cover body 22 is increased, and the lighting fixture 1 is securely attached. Can be installed on T-bar B.

  Further, the cover member 20 protrudes outward, and has a stopper portion 23 that contacts the T-bar web BW when slid to the T-bar B side. When the stopper portion 23 contacts the T-bar B, the cover member 20 If the tip of the main body 22 is placed on the flange portion BF of the T bar, the cover member 20 is supported by the T bar B, and the lighting fixture 1 is securely held by the T bar B. Can do.

  Further, when the stopper portion 23 comes into contact with the web BW of the T-bar B and the upper end hits the lower side of the enlarged portion BT provided on the upper portion of the T-bar B, the stopper portion 23 becomes the enlarged portion. It will be in the state latched by BT and the lighting fixture 1 can be prevented from floating.

  Furthermore, the instrument main body 2 has a through hole 2H formed in the inner surface 2a of the light source unit 3, and an opening 2X formed in the side surface 2S, and the mounting member 10 is connected to the fixing member BL via the through hole 2H. When attached to the back surface 2b of the instrument body 2 and the slide portion 21 is inserted into the opening 2X and is slidably attached to the inner surface 2a of the instrument body 2 via the opening 2X by the fixing member BL, Since the cover member 20 is attached to the instrument main body 2 and the attachment member 10, the attachment strength of the cover member 20 can be ensured.

Embodiment 2. FIG.
FIG. 10 is a perspective view showing a state in which the lighting fixture according to Embodiment 2 of the present invention is attached to the T-bar, and FIG. 11 is a side periphery of the lighting fixture according to Embodiment 2 of the present invention. FIG. 12 is an exploded perspective view showing the periphery of the side surface of the lighting fixture of FIGS. 10 and 11. The lighting apparatus 100 will be described with reference to FIGS. In addition, in the lighting fixture 100 of FIGS. 10-12, the same code | symbol is attached | subjected to the site | part which has the same structure as the lighting fixture 1 of FIGS. 1-9, and the description is abbreviate | omitted. The difference between the lighting fixture 100 of the second embodiment and the lighting fixture 1 of the first embodiment is the configuration of the mounting member 110.

  10 to 12, the width W between the locking portions 113 provided on both side ends of the bent portion 12 is the length W between the T bars orthogonal to the T bar B on which the mounting member 110 is hooked. (See FIG. 3). Thereby, the instrument main body 2 can be locked to the T bar B in a stable state. Further, when the mounting member 110 slides in the longitudinal direction (arrow X direction), the locking portion 113 serves as a guide and can be smoothly slid.

  The embodiment of the present invention is not limited to the above embodiment, and various modifications can be added. For example, in the first and second embodiments, the case where the attachment member 10 is slidably attached is illustrated, but the attachment member 10 may be fixed to the instrument body 2. And when a clearance gap arises between the instrument main body 2 and T bar B, you may make it close | close a clearance gap with the said cover member 20. FIG. Moreover, although the case where the light source which consists of LED is used for the light source unit 3 is illustrated, you may make it use a fluorescent lamp or organic EL.

  DESCRIPTION OF SYMBOLS 1,100 Lighting fixture, 2 fixture main body, 2H through-hole, 2L collar part, 2S side surface, 2X opening, 2a inner surface, 2b back surface, 3 light source unit 10, 110 mounting member, 11 mounting base, 11H fixing hole, 12 bending Part, 13, 113 locking part, 14 protrusion part, 15 protruding piece, 20 cover member, 21 slide part, 21H oblong hole, 22 cover body, 23 stopper part, BT bar, flange part of BFT bar, BL fixing Member, Enlarged part of BT T bar, BW T bar web, D gap, W width.

Claims (10)

A lighting fixture attached to the T-bar,
A light source unit that emits light;
An instrument body that houses the light source unit;
An attachment member attached to the instrument body and hooked on the T-bar;
A lighting fixture comprising: a cover member that is slidably attached to a lower edge of the fixture body, and that covers a space between the lower edge of the fixture body and the T-bar.   The lighting fixture according to claim 1, wherein the attachment member is slidably attached from the fixture main body to the T-bar side. The mounting member is
An attachment base attached to the back of the instrument body;
A bent portion that extends downward from the mounting base and is located on the side of the instrument body;
The lighting apparatus according to claim 1, further comprising: a locking portion that protrudes outward from the bent portion and is locked to an upper portion of the T-bar at a lower edge.   The lighting fixture according to claim 3, wherein a protruding portion protruding downward is provided at a tip of a lower edge of the locking portion.   The lighting fixture according to claim 3 or 4, wherein a protruding piece protruding below the locking portion is provided below the bent portion. The locking portion is provided at both ends of the bent portion,
The lighting apparatus according to any one of claims 3 to 5, wherein a width between the two locking portions is equal to a length between the T bars orthogonal to the T bar on which the mounting member is hooked. The cover member is
A slide part which is slidably attached to the instrument body and extends from the attachment position of the instrument body to the lower edge of the side surface;
The lighting fixture according to claim 1, further comprising: a cover main body fixed to the lower edge of the slide portion and arranged to overlap the lower side of the side edge of the fixture main body. Projecting outward, and having a stopper that hits the T-bar web when slid to the T-bar side,
The lighting fixture according to claim 7, wherein when the stopper portion hits the web of the T bar, the front end side of the cover main body is placed on the flange portion of the T bar.   The lighting fixture according to claim 8, wherein when the side portion of the stopper portion hits the web of the T-bar, the upper end of the stopper portion hits the lower side of the enlarged portion provided on the upper portion of the T-bar. The instrument body has a through hole formed in the inner surface of the light source unit and an opening formed in a side surface of the instrument body,
The attachment member is attached to the back surface of the instrument body through the through hole by a fixing member,
The lighting device according to claim 8 or 9, wherein the slide portion is inserted into the opening, and is slidably attached to the attachment member via the through hole on the inner surface of the device body by the fixing member.

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