JP2010140798A - Luminaire - Google Patents

Abstract

Provided is a lighting fixture that can be easily attached and that can be prevented from falling after the attachment.
An arm 32 that supports a lamp body 20 having a light source 21 at its tip is supported by a bottom portion 41 of a flange 40, and the flange 40 is attached to a mounting plate 50 attached to a mounted portion 11. The lighting fixture 10 is attached to the attached portion 11. At this time, the front end portion 542 of the locking portion 54 provided on the mounting plate 50 can be easily positioned by contacting the stopper portion 44 of the engaging portion 47 of the flange 40. In addition, in the state of being in contact with the stopper portion 44, the front end portion 542 of the locking portion 54 is temporarily supported by the inclined surface 45 of the flange 40, so that the flange 40 can be easily attached to the mounting plate 50. Furthermore, after attaching the luminaire 10 to the attachment portion 11 by attaching the flange 40 to the attachment plate 50, even if the set screw is loosened, the locking portion 54 moves along the inclined surface 45, and the drop prevention recess 46. Since it fits in, it can prevent fall reliably.
[Selection] Figure 4

Description

  The present invention relates to a lighting fixture that is attached to a mounted portion by attaching a flange that supports a lamp body having a light source to a mounting plate that is attached to the mounted portion.

Conventionally, there has been proposed a lighting fixture in which a lamp body having a light source is supported by an arm, and a flange that supports the arm is attached to an attached portion (see, for example, Patent Document 1).
As shown in FIG. 5, in the lighting fixture 100 described in Patent Document 1, a lamp body 102 having a light source 101 is rotatably held at the tip of an arm 103. The upper end portion of the arm 103 is rotatably supported by a disk-like flange 104.
On the other hand, a mounting plate 106 is attached to the ceiling 105 with screws 107. The mounting plate 106 is provided with a screw member 109 protruding downward. A power line 110 is drawn into the flange 104 through the central portion of the mounting plate 106.

Accordingly, the lighting fixture 100 is attached to the ceiling 105 by passing through the flange 104 with the screw member 109 of the mounting plate 106 attached to the ceiling 105 and fastening the cap nut 108 to the tip of the screw member 109 on the lower surface of the flange 104. .
Utility Model Registration No. 2554116

However, in the luminaire 100 as described above, when the luminaire 100 is attached to the ceiling 105, first, the power line 110 penetrating the attachment plate 106 attached to the ceiling 105 is connected to the terminal inside the flange 104. Must be connected to the stand. At this time, until the cap nut 108 is fastened, the operator needs to support the heavy lighting device 100, and the mounting workability is poor.
Further, since the lighting fixture 100 is supported by the cap nut 108, there is a problem that the lighting fixture 100 may fall if the cap nut 108 is loosened.

  The present invention has been made to solve the conventional problems, and an object of the present invention is to provide a lighting fixture that can be easily mounted and can prevent falling after the mounting.

  The lighting fixture of the present invention includes a lamp having a light source, an arm that supports the lamp, a flange having a bottomed cylindrical shape that has an upper surface opened and supports the arm at the bottom, and is attached to a mounted portion. And a mounting plate for locking the flange, wherein the lighting device protrudes inward along the inner peripheral surface of the flange, and has an inclined surface having a stopper at one end and a fall prevention continuous to the other end of the inclined surface. An engaging portion having a recess is provided, and an L-shaped locking portion that protrudes downward and outward from the outer peripheral surface of the mounting plate and that can be fitted into the fall preventing recess is provided at the tip.

With this configuration, the arm that supports the lamp body having the light source at the tip is supported at the bottom of the flange. By attaching the flange to the mounting plate attached to the mounted portion, the lighting fixture is attached to the mounted portion. Mounted. At this time, it is possible to easily position the front end portion of the engaging portion provided on the mounting plate by contacting the stopper portion of the engaging portion of the flange.
Moreover, in the state contact | abutted to the stopper part, the front-end | tip part of a latching | locking part is temporarily supported by the inclined surface of the flange, Therefore A flange can be easily attached to a mounting plate.
In addition, after attaching the lighting fixture to the mounted part by attaching the flange to the mounting plate, even if the set screw is loosened, the locking part moves along the inclined surface and fits into the fall prevention recess, so Can be reliably prevented.

  In the present invention, the front end of the locking portion provided on the mounting plate can be easily positioned by contacting the stopper portion of the engaging portion of the flange. Moreover, in the state contact | abutted to the stopper part, the front-end | tip part of a latching | locking part is temporarily supported by the inclined surface of the flange, Therefore A flange can be easily attached to a mounting plate. In addition, after attaching the lighting fixture to the mounted part by attaching the flange to the mounting plate, even if the set screw is loosened, the locking part moves along the inclined surface and fits into the fall prevention recess, so Therefore, it is possible to provide a lighting apparatus having an effect that can be reliably prevented.

Hereinafter, the lighting fixture of embodiment of this invention is demonstrated using drawing.
1 is a perspective view showing a lighting apparatus according to an embodiment of the present invention, FIG. 2 is a sectional view taken along the line II-II in FIG. 1, FIG. 3 is a perspective view of a mounting plate and a flange as viewed from above, and FIG. It is a disassembled perspective view of a board and a flange.

As shown in FIG. 1 and FIG. 2, the luminaire according to the embodiment of the present invention is a spotlight 10 that is used by being attached to a ceiling 11 that is a mounted portion, for example.
The spotlight 10 has a cylindrical lamp body 20, and reflects light from a ceramic metal halide lamp (hereinafter referred to as “lamp”) 21 as a light source and the lamp 21 in a predetermined direction. The reflecting plate 22 is provided.

  The lamp 21 is attached to a screw base socket 25 fixed inside the lamp body 20. The reflector 22 has a substantially parabolic shape, and the center of the lamp 21 is disposed at the focal position of the reflector 22. A front frame 27 is fitted into the opening of the lamp body 20 from the front and is mounted in a rotating manner. The front end of the reflector 22 is pressed against the rear surface of the front frame 27 by a reflector fixing spring 26 and fixed. A ballast box 24 containing a ballast 23 for lighting the lamp 21 is attached to the upper part of the lamp body 20. It is desirable in terms of appearance that the ballast box 24 has a cylindrical shape having the same outer diameter as that of the lamp body 20 as if it is an extended portion of the lamp body 20.

The lamp body 20 is supported by an overall U-shaped support member 30 so as to be rotatable in the vertical direction. The support member 30 includes a connecting portion 31 provided horizontally at the upper portion and a pair of arms 32 and 32 extending downward from both ends of the connecting portion 31.
The connecting portion 31 is supported by the turning shaft portion 35 so as to be turnable on a flange 40 described later. The turning shaft portion 35 has a shaft member 351 provided in a vertically distant manner from the connecting portion 31 and is supported by the flange 40 so as to be turnable. One arm 352 is provided at a central portion of the shaft member 351 in a direction intersecting with the connecting portion 31 (for example, an orthogonal direction), and a screw 353 is attached to the tip of the arm 352.

  The lower end portion of each arm 32 supports the lamp body 20 by a rotation shaft 33 so as to be rotatable. A fan-shaped rotation fixing portion 34 centering on the rotation shaft 33 is provided on the distal end side of the rotation shaft 33 in the arm 32. The rotation fixing portion 34 is provided with an arc-shaped groove 341 centered on the rotation shaft 33, and a screw 342 whose tip is screwed into the lamp body 20 is slidably provided in the groove 341. It has been.

  Accordingly, by turning the support member 30 about the turning shaft 35, the lamp body 20 turns in the horizontal direction. The turning of the support member 30 can be fixed by tightening the screw 353. Further, the lamp body 20 is rotated in the vertical direction around the rotation shaft 33 of the arm 32 and fixed by the screw 342 of the rotation fixing portion 34, thereby positioning the lamp body 20 in a desired direction. Can do. Then, by tightening the screw 342, the vertical rotation of the lamp body 20 can be fixed. Thereby, illumination light can be irradiated to a desired direction.

  The flange 40 that supports the support member 30 in a pivotable manner has a bottomed cylindrical shape with an open top surface, and supports the support member 30 in the center of the bottom portion 41 in a pivotable manner. A terminal block 48 is provided on the upper surface 413 of the bottom portion 41, and a wiring connected to the socket 25 through the inside of the support member 30 by connecting a power supply line (not shown) connected to a commercial power supply. Power is supplied via

  A groove 412 is provided on the lower surface 411 of the bottom 41 around the shaft member 351, and when the screw 353 provided on the arm 352 of the support member 30 is tightened, the tip of the screw 353 is placed inside the groove 412. The intrusion is fixed and the turning of the support member 30 is fixed.

  As shown in FIG. 4, an engaging portion 47 that protrudes inward along the inner peripheral surface 421 of the side wall 42 is provided. The engaging portion 47 has an inclined surface 45 that is inclined along the circumferential direction of the inner peripheral surface 421, and a stopper portion 44 is provided downward continuously from one end (lower end) of the inclined surface 45. Further, a fall prevention recess 46 that is recessed upward is provided to the other end (upper end) of the inclined surface 45. An attachment hole 422 for fixing the flange 40 is provided in the side wall 42 of the flange 40, and a fixing screw 43 is attached.

  As shown in FIGS. 3 and 4, the mounting plate 50 attached to the ceiling 11 has a size and a shape that can be fitted into the inner peripheral surface 421 of the flange 40. In the center of the mounting plate 50, a power supply hole 51 for wiring a power supply line is provided so as to pass through. A mounting hole 52 for mounting the mounting plate 50 to the ceiling 11 on both sides in the radial direction across the power supply hole 51. , 52 are provided. The mounting hole 52 has a large-diameter portion 521 through which the head of a mounting screw (not shown) can pass and a small-diameter portion 522 through which the screw portion can pass but the head cannot pass.

  A pair of brackets 53 are bent downward on the outer peripheral portion of the mounting plate 50 at a point-symmetrical position with respect to the mounting hole 52. The bracket 53 has a screw hole 531 into which the fixing screw 43 is screwed.

  On the outer peripheral portion of the mounting plate 50, a locking portion 54 is bent downward on a diameter orthogonal to the diameter connecting the pair of brackets 53. The locking portion 54 has an overall L-shape from a vertical wall 541 that extends downward and a horizontal wall 542 that is bent outward from the lower end of the vertical wall 541. The vertical wall 541 is provided closer to the center than the outer periphery so that the horizontal wall 542 is housed inside the flange 40 and does not contact the inner peripheral surface 421 of the flange 40. The horizontal wall 542 has a size and a shape that can be fitted into the drop prevention recess 46 of the flange 40.

Next, the operation | movement which attaches the lighting fixture 10 of this invention to the ceiling 11 is demonstrated.
First, the mounting plate 50 is attached to a desired position on the ceiling 11, and the power line drawn out from the back of the ceiling 11 is pulled out from the power hole 51 of the mounting plate 50.

  Next, the tip of the power line is connected to the terminal block 48 attached to the bottom 41 of the flange 40. The flange 40 to which the lamp body 20 is attached via the support member 30 is fitted to the outside of the attachment plate 50. Then, the flange 40 is turned in the direction A in FIG. 4, the stopper portion 44 of the engaging portion 47 of the flange 40 is brought into contact with the end surface 543 of the horizontal wall 542 of the mounting plate 50, and the flange 40 is attached to the mounting plate 50. Position with respect to.

  As a result, the end surface 543 of the horizontal wall 542 contacts the stopper portion 44 and is positioned in the turning direction, and the upper surface of the horizontal wall 542 is locked to the upper end portion of the inclined surface 45 and positioned in the vertical direction. For this reason, the mounting hole 422 provided in the side wall 42 of the flange 40 and the screw hole 531 of the bracket 53 of the mounting plate 50 coincide with each other, so that the flange 40 is fixed to the mounting plate 50 with the fixing screw 43.

  As described above, in the lighting fixture 10 according to the embodiment of the present invention described above, the horizontal wall 542 of the locking portion 54 provided on the mounting plate 50 is brought into contact with the stopper portion 44 of the engaging portion 47 of the flange 40. Can be easily positioned.

  Further, in the state where it abuts against the stopper portion 44, the horizontal wall 542 of the locking portion 54 is temporarily supported in the vertical direction by the inclined surface 45 of the flange 40, so that the flange 40 can be easily attached to the mounting plate 50. it can.

  Further, after the lighting apparatus 10 is attached to the ceiling 11 by attaching the flange 40 to the attachment plate 50, even if the fixing screw 43 is loosened, the horizontal wall 542 moves along the inclined surface 45 and enters the drop prevention recess 46. Since it fits, fall of the lighting fixture 10 can be prevented reliably.

  In addition, the lighting fixture of this invention is not limited to embodiment mentioned above, A suitable deformation | transformation, improvement, etc. are possible.

The perspective view which shows the lighting fixture concerning embodiment of this invention Sectional view at II-II position in Fig. 1 Perspective view of mounting plate and flange as seen from above Exploded perspective view of mounting plate and flange A perspective view of a conventional lighting device

Explanation of symbols

10 Lighting equipment 11 Ceiling (attached part)
20 Lamp body 21 Lamp (light source)
32 Arm 40 Flange 41 Bottom 421 Inner peripheral surface 44 Stopper portion 45 Inclined surface 46 Fall prevention recess 47 Engagement portion 50 Mounting plate 54 Locking portion 542 Horizontal wall (tip portion)

Claims (1)

A lamp body having a light source;
An arm for supporting the lamp body;
A flange having a bottomed cylindrical shape with an open top surface and supporting the arm at the bottom;
A mounting plate attached to the mounted portion and locking the flange,
Protruding inward along the inner peripheral surface of the flange, provided with an inclined surface having a stopper portion at one end and an engaging portion having a fall-preventing recess continuous with the other end of the inclined surface,
An illuminating device comprising an L-shaped locking portion that protrudes downward and outward from an outer peripheral surface of the mounting plate, and a tip portion of which can be fitted into the drop prevention concave portion.

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