JP2013218903A - Lighting fixture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent rotation of a lighting fixture body installed in an adaptor.SOLUTION: A lighting fixture 10 is detachably mounted on a cylindrical adaptor 30 with locking parts 32 each having a recessed part on an upper surface projected from an outer circumferential face. The lighting fixture 10 is provided with a lighting fixture body 11 and a rotation prevention part 12. The lighting fixture body 11 includes a circular opening part 11a. The rotation prevention part 12 is arranged at a peripheral part of the opening 11a. The lighting fixture body 11 is supported by the adaptor 30 when the adaptor 30 is fitted into the opening part 11a and the peripheral part of the opening part 11a is mounted on an upper face of the locking part 32 of the adaptor 30. The rotation prevention part 12 is inserted into the recessed part of the locking part 32 of the adaptor 30.

Description

  The present invention relates to a lighting fixture. In particular, the present invention relates to a luminaire in which the luminaire main body and the cover of the luminaire can be attached and detached safely and easily when being attached to a ceiling or the like via an adapter.

  By fixing lighting fixtures to the wiring fixtures arranged on the ceiling via an adapter, there is an increasing number of fixtures that allow ordinary people to fix the lighting fixtures directly to the ceiling without the intervention of an electrician. .

  By the way, in such a luminaire, when it is attached to the adapter halfway, if the cover is to be removed to clean the cover and the cover is rotated, the luminaire main body rotates at the same time and the cover cannot be removed.

  Moreover, if rotation rotates many times, there exists a possibility that the electrical connection part of an adapter may remove | deviate from a terminal, or the electric wire pulled out from the adapter may be disconnected.

  In the conventional lighting fixture, the rotation stopper that protrudes from the peripheral portion of the central space portion of the lighting fixture main body toward the side surface of the adapter hits the side surface of the locking portion of the adapter to prevent rotation (for example, Patent Document 1). reference).

JP 2007-257879 A

  In the conventional luminaire, the rotation stopper cannot completely prevent the rotation, and there is a problem that the luminaire main body slightly rotates when the cover is rotated for attachment / detachment.

  An object of this invention is to prevent rotation of the lighting fixture main body with which the adapter was mounted | worn, for example.

A lighting apparatus according to one aspect of the present invention includes:
A luminaire that is detachably attached to a cylindrical adapter with a locking portion having a depression on the upper surface protruding from the outer peripheral surface,
A lighting fixture body provided with a circular opening, wherein the adapter is fitted into the opening, and a peripheral edge of the opening is supported on the upper surface of the locking portion of the adapter, thereby being supported by the adapter. A lighting fixture body,
A rotation stopper provided at a peripheral edge of the opening and inserted into a recess of the locking portion of the adapter.

  According to one aspect of the present invention, since the rotation stop portion of the lighting fixture is inserted into the recess of the locking portion of the adapter, the rotation of the lighting fixture body attached to the adapter can be prevented.

Sectional drawing of the lighting fixture which concerns on Embodiment 1, the cover attached to a lighting fixture, the adapter with which a lighting fixture is mounted | worn, and the wiring fixture to which an adapter is attached. FIG. 3 is an enlarged perspective view of a portion (center portion) of the lighting fixture main body according to the first embodiment. The figure which shows the procedure which attaches the upper stage of the lighting fixture main body which concerns on Embodiment 1 to an adapter. The figure which shows the state with which the lower stage of the lighting fixture main body which concerns on Embodiment 1 was mounted | worn with the adapter. The part (center part) expansion perspective view of the lighting fixture main body which concerns on Embodiment 2. FIG. The part (center part) expansion perspective view of the lighting fixture main body which concerns on Embodiment 3. FIG.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the description of each embodiment, the directions such as “up”, “down”, “left”, “right”, “front”, “back”, “front”, “back” are However, it is not intended to limit the arrangement or orientation of devices, instruments, parts, or the like.

Embodiment 1 FIG.
FIG. 1 is a cross-sectional view of a lighting fixture 10, a cover 20 attached to the lighting fixture 10, an adapter 30 to which the lighting fixture 10 is detachably mounted, and a wiring fixture 40 to which the adapter 30 is attached according to the present embodiment. In FIG. 1, hatching of the cross section is omitted. FIG. 2 is an enlarged perspective view of a portion (center portion) of the luminaire main body 11.

  In FIG. 1, the adapter 30 has a cylindrical shape, and an L-shaped plug 31 protrudes from the upper surface thereof. Further, a locking portion 32 protrudes from the outer peripheral surface of the adapter 30. The locking portion 32 is supported by a spring inside the adapter 30 and is urged toward the outside of the adapter 30 by the elastic force of the spring. When pressed from the outside, the locking portion 32 is retracted toward the inside of the adapter 30. . Two locking portions 32 are provided at positions symmetrical with respect to the center of the adapter 30 in plan view. That is, two locking portions 32 are provided so that the positions of the adapter 30 in the circumferential direction are separated from each other by about 180 degrees. As will be described later, the upper surface of the locking portion 32 has a recess. An electrical connection portion 33 (connector) extends from the lower surface of the adapter 30. The electrical connection portion 33 is electrically connected to the L-shaped plug 31 inside the adapter 30. On the lower surface of the adapter 30, there is also provided a button 34 for shrinking the locking portion 32 to the inside of the adapter 30 with the spring described above. The button 34 may not be provided, or may be replaced by a structure such as a handle that shrinks the locking portion 32 inward by another structure.

  The luminaire 10 includes a luminaire main body 11, a rotation stop portion 12, a lighting device storage portion 13, and a packing 14.

  Two annular lamps 15 are detachably attached to the luminaire body 11. The annular lamp 15 is, for example, an LED lamp or a fluorescent lamp. The number of annular lamps 15 that can be attached to the luminaire main body 11 is not limited to two, and may be one or three or more.

  At the center of the luminaire main body 11, circular openings 11a are provided in two upper and lower stages in plan view. Note that the opening 11a is not limited to two stages, and may be provided in one stage or three or more stages. By having a plurality of openings 11a, the same lighting fixture 10 can be attached to the wiring fixture 40 having different thicknesses (heights).

  As shown in FIG. 2, the upper part of the central part of the luminaire main body 11 is recessed only in that part rather than the inner diameter so that the locking part 32 of the adapter 30 can be easily inserted. That is, the notch 11b is formed at a position corresponding to the locking portion 32 of the adapter 30 at the peripheral edge of the upper opening 11a. Further, there is a rotation stop portion 12 provided to stop the rotation of the locking portion 32 of the adapter 30 at the center position along the ridge line of the notch 11b. The rotation stopper 12 is erected downward (toward the lower stage) from the peripheral edge of the upper opening 11 a, and the height thereof is lower than the height of the locking part 32 of the adapter 30. Two rotation stoppers 12 are provided at the peripheral edge of the upper opening 11a. Two rotation stoppers 12 are provided at positions symmetrical to the center of the opening 11a in plan view in accordance with the locking part 32 of the adapter 30. That is, two rotation stoppers 12 are provided such that the positions of the openings 11a in the circumferential direction are separated from each other by about 180 degrees. Note that the number of the rotation stoppers 12 is not limited to two, but may be one, or may be three or more as in the second embodiment described later. Moreover, the same rotation stop part 12 (for example, two) may be provided also in the peripheral part of the lower opening part 11a.

  The lighting device storage unit 13 stores a lighting device or the like (not shown) for lighting the annular lamp 15.

  The packing 14 is formed of sponge, rubber, or the like, and is provided on the upper surface of the lighting fixture body 11, for example, in an annular shape.

  Below, the procedure which attaches the lighting fixture 10 to a ceiling etc. by combining the lighting fixture 10, the cover 20, the adapter 30, and the wiring fixture 40 shown in FIG. 1 is demonstrated.

  The wiring device 40 is attached to a ceiling or the like in advance. Prior to mounting the lighting fixture 10, the L-shaped plug 31 protruding upward of the adapter 30 is inserted into a metal receiver (not shown) on the lower surface of the wiring fixture 40 and turned to turn the adapter 30 to the wiring fixture 40. Fix it.

  As described above, the central portion of the luminaire main body 11 is structured to be attached in two stages. The upper stage is attached to a thin wiring device 40, and the lower stage is attached to a standard wiring device 40. Here, it is assumed that a standard wiring device 40 is attached to a ceiling or the like.

  FIG. 3 is a diagram illustrating a procedure for attaching the upper stage of the lighting fixture body 11 to the adapter 30.

  As described above, the central portion of the luminaire main body 11 has the notch 11b so that the locking portion 32 of the adapter 30 can be easily inserted (see FIG. 2). When the notch 11b is aligned with the position of the locking portion 32 of the adapter 30 and the central portion of the luminaire main body 11 is pushed up from below (step 1 in FIG. 3), the locking of the adapter 30 protruding from the side surface of the adapter 30 is performed. Since the portion 32 is tapered, the pushing-up force is a force that temporarily pushes the locking portion 32 into the cylinder of the adapter 30. In this way, while pushing the locking part 32 into the inside of the adapter 30 or by retracting the spring with the button 34 on the lower surface of the adapter 30 and retracting the locking part 32 into the inside of the adapter 30, The adapter 30 is hidden in the opening 11a (central space). When the luminaire main body 11 is further lifted upward and the upper stage of the luminaire main body 11 passes through the locking portion 32 of the adapter 30 (step 2 in FIG. 3), the locking portion 32 is again removed from the adapter 30 by the restoring force of the spring. Since it protrudes, the upper stage of the luminaire body 11 is placed on the locking portion 32 of the adapter 30 and the downward movement is stopped (step 3 in FIG. 3).

  As described above, the adapter 30 is fitted into the opening 11 a of the lighting fixture body 11, and the peripheral portion of the upper opening 11 a is placed on the upper surface of the locking portion 32 of the adapter 30. Is supported by the adapter 30. In this state, since the rotation stopper 12 provided at the peripheral edge of the upper opening 11 a is inserted into the recess 32 a of the locking portion 32 of the adapter 30, the rotation of the lighting fixture body 11 is prevented.

  When the standard wiring fixture 40 is attached to the ceiling or the like, the packing 14 on the upper surface of the lighting fixture main body 11 does not reach the ceiling or the like when the upper stage of the lighting fixture main body 11 is attached to the adapter 30. Even if it arrives, it is in a state where it is not sufficiently adhered. When the cover 20 is to be attached to the lighting fixture 10 in this state, the packing 14 cannot prevent the lighting fixture main body 11 from rotating together with the cover 20. However, in the present embodiment, since the rotation stopper 12 is fitted in the recess 32 a of the locking portion 32 of the adapter 30, it is possible to prevent the lighting fixture body 11 from rotating with the cover 20.

  FIG. 4 is a diagram illustrating a state in which the lower part of the luminaire main body 11 is attached to the adapter 30 and the luminaire 10 is attached to a ceiling or the like.

  When the central portion of the luminaire main body 11 is further pushed up from below, the locking portion 32 of the adapter 30 is pushed into the adapter 30 again. Or if the button 34 in the lower surface of the adapter 30 is pushed and the spring inside the adapter 30 is shrunk, the latching | locking part 32 of the adapter 30 will retract inside the adapter 30 again. In this state, when the lighting fixture body 11 is further lifted upward and the lower stage of the lighting fixture body 11 passes through the locking portion 32 of the adapter 30, the locking portion 32 protrudes from the adapter 30 again by the restoring force of the spring. The lower stage of the luminaire main body 11 is placed on the locking portion 32 of the adapter 30, and the downward movement is stopped.

  Thus, the adapter 30 is fitted into the opening 11 a of the lighting fixture body 11, and the peripheral portion of the lower opening 11 a is placed on the upper surface of the locking portion 32 of the adapter 30. Is supported by the adapter 30. When the rotation stopper 12 is also provided at the peripheral edge of the lower opening 11 a, the rotation stopper 12 is inserted into the recess 32 a of the locking portion 32 of the adapter 30. Is reliably prevented.

  When the standard wiring fixture 40 is attached to a ceiling or the like, when the lower stage of the luminaire main body 11 is attached to the adapter 30, the packing 14 on the upper surface of the luminaire main body 11 comes into close contact with the ceiling or the like. Therefore, the rotation of the lighting fixture body 11 can be prevented by the packing 14 even if the rotation stopper 12 is not provided at the peripheral edge of the lower opening 11a. In this state, the electrical connection portion 33 that has come out of the adapter 30 passes downward through the central space of the lighting fixture body 11 (see FIG. 3). The electrical connection portion 33 is inserted into the receiving side (not shown) of the luminaire main body 11 to complete the power connection. In addition, you may perform the operation | work which connects the electrical connection part 33 to the lighting fixture main body 11 immediately after step 3 of FIG.

  Thereafter, the cover 20 is rotated and held on a metal fitting (not shown) of the luminaire main body 11. At this time, as described above, since the packing 14 on the upper surface of the luminaire main body 11 is in close contact with the ceiling or the like, the luminaire main body 11 hardly rotates with the cover 20.

  As described above, in the present embodiment, since the rotation stop portion 12 is provided in the first stage of the lighting fixture body 11, the lighting fixture body 11 does not rotate and is stable and safe even when the cover 20 is attached or detached. This has the effect of easy handling.

Embodiment 2. FIG.
In the present embodiment, differences from the first embodiment will be mainly described.

  In the present embodiment, the number of the notches 11b and the rotation stoppers 12 of the luminaire main body 11 is not two, but four.

  FIG. 5 is an enlarged perspective view of a portion (center portion) of the luminaire main body 11.

  As shown in FIG. 5, two notches 11b are formed at positions A and C symmetrical with respect to the center of the opening 11a in a plan view at the peripheral edge of the upper opening 11a. Further, two other cutouts 11b are formed at positions B and D symmetrical with respect to the center of the opening 11a in plan view. In the present embodiment, the luminaire main body 11 can be mounted on the adapter 30 by aligning the positions A and C with the position of the locking portion 32 of the adapter 30, It is also possible to attach the luminaire main body 11 to the adapter 30 in accordance with the position. In other words, in the present embodiment, the luminaire 10 can be attached to the ceiling or the like by directing the luminaire 10 in a direction arbitrarily selected from two different directions (for example, orthogonal to each other) (particularly, the cover 20 is provided). This is useful in the case of a rectangular parallelepiped).

  At the center position along the ridgeline of each notch 11b, there is a rotation stopper 12. That is, four rotation stoppers 12 are provided at positions A to D at the peripheral edge of the upper opening 11a. Two adjacent rotation stoppers 12 are provided such that the positions of the openings 11a in the circumferential direction are about 90 degrees apart from each other.

  The numbers and positions of the notches 11b and the rotation stoppers 12 can be changed as appropriate.

  According to this Embodiment, it becomes possible to attach the lighting fixture 10 to arbitrary positions in the circumferential direction.

Embodiment 3 FIG.
The difference between the present embodiment and the second embodiment will be mainly described.

  In this Embodiment, the shape of the rotation stop part 12 of the lighting fixture main body 11 is a triangle shape by sectional view.

  FIG. 6 is an enlarged perspective view of a portion (center portion) of the luminaire main body 11.

  As shown in FIG. 6, in the present embodiment, the rotation stopper 12 moves downward from the peripheral edge of the upper opening 11a so that the width in the radial direction of the opening 11a is gradually reduced (toward the lower stage). ) It is erected. Thereby, the latching | locking part 32 of the adapter 30 is easy to attach or detach, and it becomes difficult to get on the rotation-stop part 12 in a rotation direction.

  As mentioned above, although embodiment of this invention was described, you may implement in combination of 2 or more among these embodiment. Alternatively, one of these embodiments may be partially implemented. Alternatively, two or more of these embodiments may be partially combined. In addition, this invention is not limited to these embodiment, A various change is possible as needed.

  DESCRIPTION OF SYMBOLS 10 Lighting fixture, 11 Lighting fixture main body, 11a Opening part, 11b Notch, 12 Anti-rotation part, 13 Lighting device accommodating part, 14 Packing, 15 Ring lamp, 20 Cover, 30 Adapter, 31 L-shaped plug, 32 Engagement Stop, 32a dent, 33 electrical connection, 34 button, 40 wiring device.

Claims (5)

A luminaire that is detachably attached to a cylindrical adapter with a locking portion having a depression on the upper surface protruding from the outer peripheral surface,
A lighting fixture body provided with a circular opening, wherein the adapter is fitted into the opening, and a peripheral edge of the opening is supported on the upper surface of the locking portion of the adapter, thereby being supported by the adapter. A lighting fixture body,
A lighting fixture comprising: a rotation stopper provided at a peripheral edge of the opening and inserted into a recess of the locking portion of the adapter.   The lighting fixture according to claim 1, wherein a plurality of the rotation stoppers are provided so that positions of the openings in the circumferential direction are different from each other.   The lighting apparatus according to claim 2, wherein at least two of the plurality of rotation stoppers are provided such that positions of the openings in the circumferential direction are separated from each other by approximately 90 degrees.   The lighting device according to any one of claims 1 to 3, wherein the rotation stopper is erected from a peripheral edge of the opening so that a width in a radial direction of the opening is gradually narrowed. In the lighting fixture body, the opening is provided in two upper and lower stages,
The lighting fixture according to any one of claims 1 to 4, wherein the rotation stopper is provided at a peripheral edge of the upper opening.

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