JP2017097998A - Lighting fixture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lighting fixture which can easily perform an installation operation to a wiring duct without spoiling an appearance in an installed state.SOLUTION: A lighting fixture 10 includes a power supply part 12, a lighting body 14 and a plug part 13. The power supply part 12 is cylindrically mounted around a fixture central axis 17, and a groove part 26 is formed on the peripheral surface at one end side in the axial direction. The lighting body 14 is mounted on the other end side in the axial direction, of a power supply part 12. The plug part 13 includes: a turnable part 51 turnably mounted on the end surface at one end side of the power supply part 12 around the fixture central axis 17; an operation part 47 turnably disposed in the groove part 26 of the power supply part 12 and turning around the fixture central axis 17 together with the turnable part 51; and a connection part 54 projecting from the turnable part 51. The turnable part 51 and the connection part 54 are inserted into a wiring duct 11 and turned, so that the connection part 54 is connected to the wiring duct 11.SELECTED DRAWING: Figure 1

Description

  Embodiments described herein relate generally to a lighting fixture installed in a wiring duct.

  2. Description of the Related Art Conventionally, there is a lighting device such as a spotlight that is used by being installed at an arbitrary position of a wiring duct installed on a ceiling or an upper space. In such a lighting fixture, the power source is provided in a rectangular box shape that is long in the lateral direction along the wiring duct, the plug portion connected to the wiring duct is provided at the longitudinal end of the power source, and the lamp body is Often provided at the bottom of the power supply.

  The plug portion inserts a rotating portion into the groove portion of the wiring duct, and rotates the rotating portion with the operation portion, so that the connecting portion protruding from the rotating portion is electrically and mechanically connected to the wiring duct. Configured to be connected.

  When installing this luminaire in the wiring duct, operate the operation part of the plug part provided at the end of the power supply part with the other hand while supporting the vicinity of the center of the power supply part long in the lateral direction with one hand. In other words, it is not easy to install the lighting fixture in the wiring duct.

  There is also a lighting fixture in which the plug portion can be installed in the wiring duct by inserting the plug portion into the groove portion of the wiring duct and rotating the plug portion and the power source portion together. In this case, since a spring mechanism or the like is provided in the plug portion to prevent it from coming off from the wiring duct, the plug portion is long and the gap between the wiring duct and the power supply portion becomes large. The appearance will be damaged.

JP2013-26135A

  The problem to be solved by the present invention is to provide a luminaire that can easily be installed in a wiring duct without impairing the appearance of the installed state.

  The lighting fixture of embodiment is provided with a power supply part, a lamp body, and a plug part. The power supply unit is provided in a cylindrical shape with the instrument central axis as a center, and a groove is provided on a circumferential surface on one end side in the axial direction. The lamp body is provided on the other end side in the axial direction of the power supply unit. The plug part is a rotating part provided on the end face of one end side of the power supply part so as to be rotatable around the instrument central axis, and is provided in a groove part of the power supply part so as to be rotatable. And a connecting portion projecting from the rotating portion. The connecting portion is connected to the wiring duct by inserting and rotating the rotating portion and the connecting portion into the wiring duct.

  According to the present invention, it can be expected that the installation work to the wiring duct is facilitated without impairing the appearance of the installation state.

It is a side view of the installation state of the lighting fixture which shows one Embodiment. It is a side view in which the plug part of a lighting fixture same as the above exists in an attachment / detachment position. It is a perspective view of the state which the plug part of the lighting fixture same as the above rotated to the attachment position. It is a perspective view of the state which the plug part of the lighting fixture same as the above rotated to the attachment or detachment position. It is sectional drawing of a lighting fixture same as the above.

  Hereinafter, an embodiment will be described with reference to FIGS. 1 to 5.

  As shown in FIGS. 1 and 2, the lighting fixture 10 is a spotlight used for lighting, for example, exhibits and products. The luminaire 10 is configured to be installed and electrically connected to an arbitrary place of the wiring duct 11 installed on the ceiling side.

  The wiring duct 11 is formed in a U-shaped cross section having a groove that opens at the center of the lower surface, and the edges for attaching the lighting device 10 are provided along the longitudinal direction on both sides of the groove, and the lighting device is provided on both sides in the groove. A pair of conductors for supplying power to 10 are arranged along the longitudinal direction.

  As shown in FIGS. 1 to 5, the luminaire 10 includes a power supply unit 12, a plug unit 13, a lamp body 14, an arm 15, and the like. The power source unit 12, the plug unit 13, and the lamp body 14 are arranged concentrically around the instrument center axis 17. In the figure, the optical axis 18 of the lamp body 14 is directed downward so as to coincide with the instrument central axis 17. Further, hereinafter, one end side in the axial direction along the fixture central axis 17 of the lighting fixture 10 will be described as an upper side, and the other end side will be described as a lower side.

  Further, the power supply unit 12 is cylindrical with the instrument center axis 17 as the center, and the axial dimension along the instrument center axis 17 is longer than the radial dimension.

  The power supply unit 12 includes a cylindrical power supply case 20 and a power supply circuit 21 disposed inside the power supply case 20.

  The power supply case 20 is made of an insulating resin, and includes a cylindrical body portion 23, an upper surface cover 24 that closes the upper surface of the body portion 23, and a lower surface cover 25 that closes the lower surface of the body portion 23.

  A groove 26 is provided on the peripheral surface on the upper end side of the power supply unit 12. The groove portion 26 is provided in a region of approximately 45 ° in the circumferential direction of the power supply unit 12, and is opened on the peripheral surface side and the upper surface side of the power supply unit 12.

  A cutout 27 is formed in the body 23 corresponding to the position of the groove 26. The cutout portion 27 is opened at the peripheral surface and the upper end of the body portion 23.

  In the center of the upper surface cover 24, a plug rotation hole 28 is formed around the instrument center shaft 17. In the periphery of the upper surface cover 24, a recess 29 that forms the groove 26 corresponding to the position of the groove 26 is formed. The recessed portion 29 includes a peripheral surface portion 30 provided with a smaller diameter than the outer diameter of the body portion 23, an end surface portion 31 provided between the peripheral surface portion 30 and the body portion 23, and side surface portions 32 provided on both sides in the circumferential direction. Have. The groove portion 26 is formed in a fan shape with the instrument central shaft 17 as the center by the notch portion 27 of the body portion 23 and the recess portion 29 of the upper surface cover 24. Further, the upper surface cover 24 is formed with a protrusion 33 that is inserted into the groove of the wiring duct 11 from below and fitted. The protruding portion 33 protrudes at a position that does not interfere with the plug portion 13 at a position shifted by approximately 45 ° from one end of the groove portion 26 and by approximately 180 ° from the other end. Further, a plurality of screw insertion holes 34 for screwing the upper surface cover 24 to the body portion 23 are provided in the peripheral portion of the upper surface cover 24.

  The lower surface cover 25 is formed with an arm rotation hole 35 to which the arm 15 is rotatably attached. A heat radiating plate 36 is attached to the lower surface of the lower surface cover 25.

  The power supply circuit 21 includes a pair of circuit boards 38 and a plurality of electronic components mounted on the circuit boards 38, respectively. The pair of circuit boards 38 are accommodated in the power supply case 20 along the vertical direction along the instrument center axis 17. The power supply circuit 21 is electrically connected to the plug unit 13, receives AC power from the plug unit 13, converts it to a predetermined DC power source, and supplies it to the lamp body 14 side.

  The plug portion 13 includes a rotating member 40, a fixing member 41, a pressing member 42, and a pair of electrodes 43.

  The rotating member 40 includes a cylindrical tube portion 44, a ring portion 45 projecting around the tube portion 44, a pair of attachment portions 46 projecting from above the ring portion 45 of the tube portion 44, and a cylinder An operation unit 47 connected to the unit 44 is provided. The lower end of the cylindrical portion 44 is rotatably fitted in the plug rotation hole 28 of the upper surface cover 24, the ring portion 45 is rotatably contacted with the upper surface of the upper surface cover 24, and the operation portion 47 is The power supply unit 12 is rotatably disposed in the groove part 26.

  The operating portion 47 is provided at the tip of a lever portion 48 that protrudes from the cylindrical portion 44 (ring portion 45) in the outer diameter direction, and is inserted into the groove portion 26 of the power supply portion 12 from above and inside the groove portion 26. Can be rotated. At the upper end of the operation portion 47, a fan-shaped protruding edge portion 49 is provided that protrudes in the outer diameter direction and the circumferential direction, respectively. The operation portion 47 is disposed in the groove portion 26, but the protruding edge portion 49 protrudes out of the groove portion 26. Further, the protruding edge portion 49 is located above the upper end of the power supply portion 12, and the power supply portion 12 It is comprised so that it may not interfere. Note that the protruding edge portion 49 may not be provided in the operation portion 47. The direction in which the operation portion 47 protrudes from the cylindrical portion 44 is in a positional relationship orthogonal to the direction in which the pair of attachment portions 46 protrude from the cylindrical portion 44.

  The fixing member 41 is disposed on the lower surface side of the upper surface cover 24, the pressing member 42 is inserted into the cylindrical portion 44 from above, and a screw 50 is inserted through the fixing member 41 and screwed to the pressing member 42. As a result, the upper surface cover 24 is sandwiched between the ring portion 45 of the rotating member 40 and the fixing member 41, and the rotating member 40, the fixing member 41, and the pressing member 42 are rotatably held integrally. The cylindrical portion 44, the fixing member 41, and the pressing member 42 of the rotating member 40 constitute a rotating portion 51 that is provided on the upper end surface of the power source portion 12 so as to be rotatable about the instrument central axis 17.

  The pair of electrodes 43 penetrates the cylindrical portion 44 of the rotating member 40 and is held between the cylindrical portion 44 and the pressing member 42. The upper ends of the pair of electrodes 43 project from the cylindrical portion 44 in the radial direction. The direction in which the pair of electrodes 43 protrudes is orthogonal to the direction in which the operation portion 47 protrudes from the tube portion 44, and is in a positional relationship that coincides with the direction in which the pair of attachment portions 46 protrude from the tube portion 44. The lower ends of the pair of electrodes 43 can be brought into contact with a pair of contact pieces 53 fixed to the fixed substrate 52, and can be electrically connected to the power supply circuit 21 through the pair of contact pieces 53. The pair of electrodes 43 and the pair of attachment portions 46 constitute a connection portion 54 that is electrically and mechanically connected to the wiring duct 11.

  Accordingly, the plug portion 13 is disposed on the upper end surface of the power supply portion 12 so as to be rotatable about the instrument central axis 17, and is rotatably disposed in the groove portion 26 of the power supply portion 12. 51 has an operation part 47 that rotates about the instrument central axis 17 and a connection part 54 that protrudes from the rotation part 51, and the rotation part 51 and the connection part 54 are inserted into the groove of the wiring duct 11. The connecting portion 54 is configured to be connected to the wiring duct 11 by being rotated.

  The lamp 14 includes a housing 60, a light source 61, a lens 62, and the like.

  The housing 60 is made of metal and has a cylindrical shape. The casing 60 (lamp body 14) and the power supply unit 12 are formed to have the same outer diameter. A recess 64 is formed on the front side of the housing 60, an irradiation opening 65 is formed, and a plurality of heat radiation fins 66 are provided on the rear side of the housing 60. An arm mounting member 67 for rotatably mounting the arm 15 is screwed to one radiating fin 66.

  The light source 61 is disposed on the back side surface of the recess 64 of the housing 60 so as to face the irradiation opening 65. The light source 61 includes a light emitting module 68. The light emitting module 68 includes a substrate 69 and a plurality of light emitting elements 70 mounted on the substrate 69. For example, as the light emitting module 68, a COB module is used in which a light emitting surface 71 is formed by sealing LEDs as a plurality of light emitting elements 70 mounted on a substrate 69 with a phosphor layer.

  The lens 62 is constituted by, for example, a Fresnel lens.

  The arm 15 is made of an insulating resin and has an arm portion 80 and a rotating cylinder 81 provided at the upper end of the arm portion 80.

  The arm portion 80 is formed in a plate shape, and a lower end thereof is attached to an arm attachment member 67 fixed to the lamp body 14 so as to be rotatable about a shaft 67a. Thereby, the vertical direction of the optical axis 18 of the lamp body 14 can be adjusted.

  The rotating cylinder 81 has a cylindrical portion 82 and a flange portion 83 that projects from the outer periphery of the lower end of the cylindrical portion 82. The cylindrical portion 82 is inserted into the arm rotation hole 35 of the power supply unit 12, the flange portion 83 is in contact with the lower surface of the lower surface cover 25, and the fixing member 84 is fixed to the cylindrical portion 82 above the lower surface cover 25. The lower surface cover 25 is sandwiched between the flange portion 83 and the fixing member 84, and the rotating cylinder 81 is rotatably attached to the lower surface cover 25.

  In the center of the rotating cylinder 81, a wiring hole 85 is formed through which wiring for electrically connecting the power supply circuit 21 and the light source 61 is passed.

  And in order to install the lighting fixture 10 comprised in this way in the wiring duct 11, as shown in FIG.2 and FIG.4, it is set as the state which rotated the operation part 47 of the plug part 13 to the attachment or detachment position. In other words, the operation unit 47 is turned to the attaching / detaching position on one end side of the groove 26. In this state, the operation portion 47 is positioned in a direction orthogonal to the protrusion 33, and the pair of connection portions 54, that is, the pair of electrodes 43 and the pair of attachment portions 46 are aligned with the protrusion 33 in a straight line. Located in.

  As shown in FIG. 2, the power supply unit 12 is grasped by hand, and the rotation unit 51, the pair of connection parts 54 (the pair of electrodes 43 and the pair of attachment parts 46), and the protrusion 33 are placed in the groove of the wiring duct 11. Inserted from below, the ring portion 45 is brought into contact with the lower surface of the wiring duct 11.

  Thereafter, as shown in FIG. 1, the operation portion 47 of the plug portion 13 is rotated to the connection position. That is, the operation unit 47 is rotated to the connection position on the other end side of the groove 26.

  At this time, since the power supply unit 12 is cylindrical, the power supply unit 12 can be gripped with one hand, and the plug unit 13 is provided at the upper end of the power supply unit 12 in the axial direction. Since the operation unit 47 rotates about 17, the operation unit 47 can be rotated with the fingertip of one hand while holding the power supply unit 12 with one hand. In addition, the groove portion 26 is provided on the peripheral surface of the power supply unit 12, and the operation unit 47 is rotatably disposed in the groove portion 26. The outer diameter of the power supply unit 12 and the outer diameter of the operation unit 47 are substantially the same. Accordingly, the operation unit 47 can be easily rotated with the fingertip of one hand while holding the power supply unit 12 with one hand.

  In addition, by providing the width (the length in the circumferential direction) of the groove portion 26 corresponding to the width that the operation portion 47 rotates between the attachment / detachment position and the connection position, the end surface of the groove portion 26 functions as a stopper, The operating portion 47 for rotating the operation can be stopped at the attaching / detaching position or the connecting position, and the operability can be improved. Furthermore, the groove part 26 may be provided with a holding part such as a protrusion or a concave part for holding the operation part 47 in a state of being rotated to the attachment / detachment position or the connection position. When the operation unit 47 is rotated, the operation unit 47 gets over the holding unit and rotates.

  By rotating the operation portion 47 to the connection position, the pair of mounting portions 46 engages on the groove edge portion of the wiring duct 11, and the groove of the wiring duct 11 is between the ring portion 45 and the pair of mounting portions 46. The pair of electrodes 43 are electrically connected to the pair of conductors in the wiring duct 11 so that the AC power can be supplied to the lighting fixture 10.

  In the state where the lighting fixture 10 is installed in the wiring duct 11, since the operation portion 47 is the rotary plug portion 13, the gap between the power source portion 12 and the wiring duct 11 is narrow, and the appearance is good.

  Further, the lamp body 14 can orient the optical axis 18 of the lamp body 14 in a directly downward direction as shown by a solid line in FIG. Further, as shown by a two-dot chain line in FIG. 1, the lamp body 14 rotates the lamp body 14 with respect to the arm 15, so that the optical axis 18 of the lamp body 14 can be arbitrarily changed from a directly downward direction to a horizontal direction. It can be adjusted to the direction. Further, by rotating the arm 15 with respect to the power supply unit 12, the optical axis 18 of the lamp body 14 can be adjusted to an arbitrary horizontal direction.

  When AC power is supplied from the wiring duct 11 to the luminaire 10, the power circuit 21 converts the AC power into a predetermined DC power and supplies the DC power to the light source 61. The light source 61 supplied with the DC power emits light and irradiates light in the direction of the optical axis 18.

  Further, when the luminaire 10 is removed from the wiring duct 11, the operation unit 47 is rotated to the attachment / detachment position while holding the power supply unit 12. Accordingly, the pair of electrodes 43 are separated from the conductor of the wiring duct 11, and the pair of attachment portions 46 are separated from the wiring duct 11 and are disposed on the grooves of the wiring duct 11. Therefore, by moving the power supply unit 12 downward, the rotating unit 51, the pair of connection units 54 (the pair of electrodes 43 and the pair of attachment units 46), and the protrusion 33 are removed from the groove of the wiring duct 11 downward. be able to.

  And in the lighting fixture 10 of this embodiment, the installation work to the wiring duct 11 can be made easy, without impairing the external appearance of an installation state. That is, in the luminaire 10, since the operation portion 47 is the rotary plug portion 13, the gap between the power supply portion 12 and the wiring duct 11 is narrow, and the appearance of the installed state is not impaired. In addition, since the power supply unit 12 is cylindrical, the power supply unit 12 can be gripped with one hand, and the plug unit 13 is provided at the upper end in the axial direction of the power supply unit 12, and the instrument central shaft 17 of the power supply unit 12 is provided. Since the operation unit 47 rotates around the center, the operation unit 47 can be rotated with the fingertip of one hand while holding the power supply unit 12 with one hand, facilitating installation work on the wiring duct 11. it can. Moreover, since the groove portion 26 is provided on the peripheral surface of the power supply unit 12 and the operation unit 47 is rotatably disposed in the groove portion 26, the power supply unit 12 is operated with one hand while holding the power supply unit 12 with one hand. The part 47 can be easily rotated, and the installation work of the luminaire 10 to the wiring duct 11 can be facilitated.

  In addition, since the protruding portion 33 fitted to the wiring duct 11 is provided at a position different from the groove portion 26 on the upper end surface of the power supply portion 12, it is possible to prevent the protruding portion 33 and the operation portion 47 from interfering with each other. Can do.

  In addition, since the power source unit 12, the plug unit 13, and the lamp body 14 with the optical axis 18 oriented in the direct downward direction are provided concentrically around the instrument central axis 17, the design can be improved. Furthermore, since the power supply unit 12 and the lamp body 14 are provided in a cylindrical shape having the same diameter, a sense of unity can be obtained and the design can be improved.

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

10 Lighting equipment
11 Wiring duct
12 Power supply
13 Plug part
14 lamp
17 Instrument center axis
18 optical axis
26 Groove
33 Protrusion
47 Control panel
51 Rotating part
54 Connection

Claims (3)

A power source provided in a cylindrical shape around the instrument central axis, and provided with a groove on the circumferential surface on one end side in the axial direction;
A lamp provided on the other axial end of the power source;
A rotating part provided on the end face of one end side of the power supply part so as to be rotatable around the instrument central axis, and a pivot part disposed in the groove part of the power supply part so as to be rotatable together with the rotating part and the instrument central axis And a connecting portion protruding from the rotating portion, and the connecting portion is rotated by inserting the rotating portion and the connecting portion into a wiring duct. A plug portion connected to the wiring duct;
The lighting fixture characterized by comprising. The lighting fixture according to claim 1, further comprising: a protruding portion fitted to the wiring duct at a position different from the groove portion on an end face on one end side of the power supply unit. The lighting apparatus according to claim 1 or 2, wherein the plug unit, the power supply unit, and the lamp body with the optical axis directed in a directly downward direction are provided concentrically around the instrument central axis. .

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