JP2008235216A - Lighting fixture - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lighting fixture whose panel in front of a light source can be dismounted without using a stepladder or the like. <P>SOLUTION: The lighting fixture 10 has a panel frame 22 screwed to a fixed frame 21 with a line in the thickness direction (up and down direction in Fig.1) of a ceiling plate 11 as an axial line CL, and holes 22a for engaging pins installed on the panel frame 22. The positioning pins 31 installed on a lamp changer 30 are engageable with the holes 22a for engaging pins. A worker engages the positioning pins 31 installed on the lamp changer 30 with the holes 22a for engaging pins of the panel frame 22 from below of the lighting fixture 10, and turns and dismantles the panel frame 22. Using an incandescent lamp or a compact self-ballasted fluorescent lamp as a lamp 23 and using a lamp changer (not shown in figure) which can grip the lamp 23, the lamp 23 can be replaced. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a luminaire having a light source in a lamp attached to a ceiling, for example.

There has been a lighting fixture that can be opened and closed with a replacement fixture in the past as a convenient way of exchanging lamps of incandescent lamps and fluorescent lamps mounted on the ceiling on the floor (see, for example, Patent Document 1).
This lighting fixture 100 is embedded in a ceiling 106, has a rectangular box-like fixture body 101, has an opening 103 on the lower surface, and a light distribution control member 102 is provided in the opening 103 so that it can be opened and closed. It has been. A rotation receiving portion 104 is provided at one edge portion of the opening 103, and a locking receiving portion 105 is provided at the opposite edge portion of the opening 103, and a locking collar 107 that is locked to the ceiling 106 at the opening edge portion. Is provided. A lamp socket 107 is attached to each of the opposing side walls inside the instrument body 101, and a fluorescent lamp 108 is mounted between the lamp sockets 107.

  The light distribution control member 102 has an attachment portion 109 that is rotatably attached to the rotation receiving portion 104 at one end portion, and the locking portion 110 that is detachably locked to the locking receiving portion 105 is the other end. And an operation receiving portion 111 for engaging and disengaging the locking portion 110. The attachment portion 109 is detachably attached to the rotation receiving portion 104. When the locking portion 110 of the light distribution control member 102 is detached, the light distribution control member 102 can be rotated from the horizontal posture to the hanging posture. . The locking part 110 is provided at a support part 112 provided at the other end of the light distribution control member 102, and is provided on the support part 112 so as to be able to protrude and retract outward from the other end part of the light distribution control member 102. The locking member 113 is fitted into the hole of the stopper portion 105, and the spring 114 projects and biases the locking member 113. The operation receiving portion 111 is suspended from the locking member 113 to form a slit 115. Further, the operation tool 116 for operating the operation receiving portion 111 is a rod-like member having an operation portion 117 that is detachably engaged with the operation receiving portion 111 at the upper portion and a grip portion 118 at the lower portion.

Accordingly, the operator holds the grip portion 118 of the operation tool 116 from below the lighting device 100 and hooks the grip portion 117 at the tip on the slit 115 provided in the operation receiving portion 111 of the lighting device 100 to receive the operation receiver. The light distribution control member 102 can be opened by removing the locking member 113 of the portion 111 from the locking receiving portion 105.
JP-A-11-306837 (FIG. 1)

  By the way, in the lighting fixture embedded in a high position such as the ceiling and having rainproof performance, the structure in which the operation tool 116 is hooked and opened like the lighting fixture 100 described above cannot sufficiently exhibit the rainproof performance. There was a problem.

  The present invention has been made to solve the conventional problems, and an object of the present invention is to provide a lighting apparatus capable of removing a panel in front of a light source without using a stepladder or the like.

  The lighting fixture of the present invention has a lamp body arranged from the opening of the ceiling plate to the back of the ceiling, a fixed frame attached to the opening, and a line along the thickness direction of the ceiling plate inside the fixed frame as an axis. It has a panel frame screwed to the fixed frame and a pin fitting hole provided in the panel frame, and a positioning pin provided in a lamp changer can be engaged with the pin fitting hole. It has a certain configuration.

  With this structure, the panel frame attached by screwing to the fixed frame attached to the front surface of the lamp body embedded in the ceiling plate is removed, and the lamp accommodated in the lamp body is replaced with the lamp. Replace with a changer. At this time, the operator engages the positioning pin provided on the lamp changer with the pin fitting hole of the panel frame and removes the panel frame by rotating from the lower side of the lighting fixture. The panel frame attached at a high place can be removed without any problems. Moreover, when attaching a panel frame, it can attach similarly using the lamp changer from the downward direction of a lighting fixture.

  Moreover, the lighting fixture of this invention has the structure by which the said pin fitting hole is provided along the direction which cross | intersects with respect to the said axis line.

  With this configuration, since the pin fitting hole is provided along the direction intersecting the axis, similarly, by using the lamp changer provided with the positioning pin in the direction intersecting the axis, The panel frame attached at a high place can be removed without using a stepladder or the like. In this case, the pin fitting hole cannot be seen from the lower side of the lighting fixture, so that the appearance is good.

  In the present invention, a panel frame that is screwed around an axis in the thickness direction of the ceiling plate is provided on a fixed frame that is attached to the opening on the front surface of the lamp body that is embedded in the ceiling plate. Since the pin fitting hole is provided, the panel frame can be removed from the lower side of the lighting fixture using the lamp changer. For this reason, an operator can provide the lighting fixture which has the effect that the panel frame ahead of a lamp | ramp can be removed, without using a stepladder etc. FIG.

Hereinafter, the lighting fixture of embodiment of this invention is demonstrated using drawing.
FIG. 1 is a cross-sectional view of a lighting fixture according to a first embodiment of the present invention.

  As shown in FIG. 1, the luminaire 10 includes a lamp body 20 that is disposed from the opening 11 a of the ceiling plate 11 to the ceiling back 12, a fixed frame 21 that is attached to the opening 11 a, and a ceiling plate inside the fixed frame 21. 11 has a panel frame 22 screwed to the fixed frame 21 with a line along the thickness direction (vertical direction in FIG. 1) as an axis CL, and a pin fitting hole 22a provided in the panel frame 22. ing. And the positioning pin 31 provided in the lamp changer 30 can be engaged with the pin fitting hole 22a.

  The lamp body 20 has a bottomed cylindrical shape or a regular polygonal column shape, and is embedded in the ceiling plate 11 with the opening 20a facing downward. The bottom surface 20b of the lamp body 20 is located on the upper side, and a socket 24 is attached to the center portion. A lamp 23 as a light source is attached by rotation and is electrically connected. Therefore, when replacing the lamp 23, the panel frame 22 and the panel 25 are removed, and the lamp 23 is rotated and removed. When attaching, the lamp 23 is rotated and attached, and then the panel frame 22 and the like are rotated and attached. As the lamp 23, a light bulb or a light bulb type fluorescent lamp can be used.

  A fixing frame 21 having a circular notch 21a is attached to the lower end portion of the lamp body 20 so as to project outward from the side wall 20c in a brim shape corresponding to the cross-sectional shape of the lamp body 20. Yes. The circular notch 21a has a stopper portion 21b positioned on the upper side and having a small radius, and a mounting portion 21c positioned on the lower side of the stopper portion 21b and having a large radius and a screw 21d formed on the inner peripheral surface. ing. The fixed frame 21 is attached to the lower surface of the ceiling board 11 with an adhesive, a screw, or the like via a cushion member 21f.

  A panel frame 22 is attached to the notch 21 a of the fixed frame 21. The panel frame 22 is formed on the entire disk, and a circular notch 22b is provided at the center located below the lamp 23, and a transparent panel 25 is attached thereto. A screw 22 c is formed on the outer peripheral surface of the panel frame 22, and is screwed into the screw 21 d of the fixed frame 21. Therefore, the panel frame 22 and the panel 25 can be attached to and detached from the fixed frame 21 by rotating the panel frame 22. A plurality of pin fitting holes 22 a are formed in the thickness direction on the lower surface of the panel frame 22.

  The lamp changer 30 includes a rod member 32 having a long circular cross section and a support plate 33 having a disk shape, for example, attached to the tip end surface of the rod member 32. Positioning pins 31 are implanted on the upper surface of the support plate 33 at positions corresponding to the positions of the pin fitting holes 22 a on the lower surface of the panel frame 22. The number of positioning pins 31 may be as many as the number of pin fitting holes 22a, but at least two are sufficient if they are provided at distant positions (for example, opposing positions).

  Therefore, when replacing the lamp 23, the operator extends the lamp changer 30 from below the lighting fixture 10 toward the lighting fixture 10, and positions the positioning pins 31 provided on the upper surface of the support plate 33 on the panel frame 22. Is inserted into the pin fitting hole 22a. Then, the positioning pin 31 is not dropped from the pin fitting hole 22a, and the bar member 32 of the lamp changer 30 being gripped is rotated about the axial direction to remove the panel frame 22 from the fixed frame 21. With the panel frame 22 placed on the support plate 33 so as not to fall, the lamp changer 30 is lowered and the panel frame 22 is removed.

As described above, in the lighting device 10 according to the first embodiment of the present invention, the operator inserts the positioning pin 31 provided on the lamp changer 30 from the lower side of the lighting fixture 10 into the pin fit of the panel frame 22. Since the panel frame 22 is rotated and removed by engaging with the joint hole 22a, the panel frame 22 attached at a high place can be removed without using a stepladder or the like.
Further, as described above, by using a light bulb or a bulb-type fluorescent lamp as the lamp 23, the lamp 23 can be replaced using a lamp changer (not shown) that can hold the lamp 23.

Next, 2nd Embodiment of the lighting fixture of this invention is described using drawing.
FIG. 2 is a cross-sectional view of a lighting fixture according to a second embodiment of the present invention. In addition, the same code | symbol is attached | subjected to the site | part which is common in 1st Embodiment mentioned above, and the overlapping description is abbreviate | omitted.

  As shown in FIG. 2, in the illumination device 10 </ b> B according to the second embodiment of the present invention, the pin fitting hole 22 a is provided along the direction intersecting the axis line CL (the left-right direction in FIG. 2). That is, the pin fitting hole 22a is formed radially outward on the inner peripheral surface of the panel frame 22B. In the lamp changer 30 </ b> B, a disk-shaped support plate 33 having an outer diameter smaller than the inner diameter of the notch 22 b of the panel frame 22 is provided, and the positioning pins 31 are provided in the radial direction from the side surface of the support plate 33. In addition, the positioning pin 31 is provided so that it can be controlled to appear and disappear from the side surface of the support plate 33 when an operator operates a lever or the like at the lower portion of the bar member 32.

  Accordingly, when replacing the lamp 23, the operator extends the lamp changer 30B toward the lighting fixture 10 from below the lighting fixture 10B. At this time, the operator operates an operation portion (not shown) provided below the support bar 32 to retract the positioning pin 31, and in this state, the support plate 33 is inserted into the notch 22 b of the panel frame 22. To do. Next, the positioning pin 31 is protruded by operation of the operation portion and is inserted into the pin fitting hole 22 a of the panel frame 22. In this state, the bar member 32 of the gripped lamp changer 30B is rotated about the axial direction to remove the panel frame 22 from the fixed frame 21. With the panel frame 22 placed on the support plate 33 so as not to fall, the lamp changer 30 is lowered and the panel frame 22 is removed.

  As described above, in the lighting device 10B according to the second embodiment described above, it is possible to obtain the same operations and effects as those of the lighting device 10 according to the first embodiment described above. Moreover, since the pin fitting hole 22b provided in the panel frame 22 cannot be visually recognized from the lower side, the design can be improved.

  In the lighting device 10B described above, the panel frame 22 is gripped from the center side, but the panel frame 22 can also be gripped from the outside. In this case, when the panel frame 22 is attached to the fixed frame 21, a part of the outer peripheral surface of the panel frame 22 protrudes downward from the fixed frame 21, and a pin fitting hole 22 a is formed in this protruding portion. To be provided. In the lamp changer, the positioning pin is provided so as to protrude radially inward of the support plate.

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

  A panel frame that is screwed around an axis in the thickness direction of the ceiling plate is provided in a fixed frame that is attached to the opening on the front surface of the lamp body that is embedded in the ceiling plate, and a pin fitting hole is provided in this panel frame. Thus, the panel frame can be removed from the lower side of the lighting fixture using the lamp changer. For this reason, the operator has the effect that the panel frame in front of the lamp can be removed without using a stepladder or the like, and is useful as a lighting fixture having a light source in a lamp attached to the ceiling, for example. is there.

Sectional drawing of the illuminating device in 1st Embodiment of this invention. Section of the lighting device in the second embodiment of the present invention Sectional view showing a conventional ceiling-mounted illumination device

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Lighting fixture 11 Ceiling board 11a Opening 12 Ceiling back 20 Lamp body 21 Fixed frame 22 Panel frame 22a Pin fitting hole 30 Lamp changer 31 Positioning pin CL Axis

Claims (2)

A lamp that is placed from the ceiling plate opening to the back of the ceiling;
A fixed frame attached to the opening;
A panel frame that is screwed to the fixed frame with a line along the thickness direction of the ceiling plate as an axis inside the fixed frame;
A pin fitting hole provided in the panel frame;
A lighting fixture, wherein a positioning pin provided on a lamp changer is engageable with the pin fitting hole.   The lighting fixture according to claim 1, wherein the pin fitting hole is provided along a direction intersecting the axis.

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