JP2015050171A - Lighting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lighting device that can be fixedly attached to an indoor ceiling easily and firmly.SOLUTION: In a fixing portion, a spring is assembled into a pedestal. Spring legs of the spring are fitted into predetermined grooves of an attachment part of a decorative frame. Pedestal legs of the pedestal abut on predetermined regions of the attachment part of the decorative frame. Presser plates extending from portions near both ends of a pedestal surface of the pedestal press a rotational body of a light element from an upper end periphery. A ceiling board is held between an arm of the spring and a flange of the decorative frame, thereby fixing a lighting device to the ceiling board.

Description

  Embodiments described herein relate generally to a lighting device.

  2. Description of the Related Art In recent years, lighting devices using a semiconductor light emitting element such as an LED (Light Emitting Diode) as a light source have been used. For example, there is an illuminating device that allows a lamp body having a light source to freely rotate as a rotation center line serving as a central axis when the apparatus body rotates in the vertical and horizontal directions. Such an illuminating device is attached so that the substantially cylindrical inner frame to which the lamp body is attached can be rotated by sliding with respect to the substantially cylindrical outer frame for fixing the illuminating device itself to the indoor ceiling, The amount of rotation of the inner frame relative to the outer frame is restricted to a predetermined amount. And such an illuminating device is attached and fixed to an indoor ceiling by pinching the board of an indoor ceiling with the flange part which an outer frame has, and the elastic member attached to the outer frame.

  However, such an illuminating device is unstable to be fixed to the indoor ceiling, and the lamp body having the light source is used as a rotation center line serving as a central axis when the vertical direction and the horizontal direction of the illuminating device body are rotated. When rotating, the attachment and fixing to the indoor ceiling may be unexpectedly released.

Japanese Patent No. 5169615

  The problem to be solved by the present invention is to provide an illuminating device that can be easily and firmly attached and fixed to an indoor ceiling.

  The illumination device according to an example of the embodiment includes a lamp, a rotation frame, a holding unit, and an elastic unit. The lamp body is mounted with a light emitting element, and a rotating drum is mounted. The rotating frame has a peripheral portion at one peripheral end of a substantially cylindrical shape that is inserted into a hole of the ceiling plate, and the rotating drum is inserted so as to be rotatable. The holding unit is attached to the rotating frame in a state where the rotating drum is fitted in the rotating frame, and holds the fitting of the rotating drum into the rotating frame. The elastic portion is attached to the rotation frame, and holds the rotation frame, the holding portion, and the ceiling plate together with the peripheral edge by an elastic force.

  According to the lighting device according to the example of the embodiment, the mounting and fixing to the indoor ceiling can be simplified and strengthened.

FIG. 1 is a perspective view illustrating a configuration of a lighting device according to an embodiment. FIG. 2 is a top view illustrating the configuration of the illumination device according to the embodiment. FIG. 3 is a perspective view illustrating a configuration of a fixing portion of the lighting device according to the embodiment. FIG. 4 is an exploded perspective view illustrating a configuration of the illumination device according to the embodiment. FIG. 5 is an exploded perspective view illustrating a configuration of a lamp body of the lighting apparatus according to the embodiment. FIG. 6 is a perspective view illustrating the lighting device according to the embodiment. FIG. 7 is a diagram illustrating an attachment mode in which the lighting device according to the embodiment is attached to the indoor ceiling. FIG. 8 is a diagram illustrating an attachment aspect in which the lighting device according to the embodiment is attached to the indoor ceiling.

  Hereinafter, an illumination device according to an embodiment will be described with reference to the drawings. In the embodiment, configurations having the same functions are denoted by the same reference numerals, and redundant description is omitted. In addition, the illuminating device demonstrated by the following embodiment only shows an example, and does not limit embodiment. For example, in the following embodiments, the lighting device is a universal downlight that is installed on the ceiling of a building and uses an LED (Light Emitting Diode) as a light source. However, the present invention is not limited to this, and the lighting device may use a general semiconductor light source as a light source. Further, the following embodiments and modifications may be combined as appropriate within a consistent range.

  A lighting device according to a first embodiment below includes a lamp body, a rotating frame, a holding portion, and an elastic portion. The lamp body is mounted with a light emitting element, and a rotating drum is mounted. The rotating frame has a peripheral portion at one peripheral end of a substantially cylindrical shape that is inserted into the mounting hole of the ceiling plate, and the rotating cylinder is inserted so as to be rotatable. The holding unit is attached to the rotating frame in a state where the rotating drum is fitted in the rotating frame, and holds the fitting of the rotating drum into the rotating frame. The elastic portion is attached to the rotation frame, and holds the rotation frame, the holding portion, and the ceiling plate together with the peripheral edge by an elastic force.

  Further, in the lighting device according to the second embodiment described below, the holding unit further includes a pedestal part, a standing part, an upper surface, a pressing part, and a leg part. An elastic part is mounted on the base part. The standing part is erected on the pedestal part. The upper surface extends from the standing portion to the outer peripheral side of the rotating frame and presses the elastic portion placed on the pedestal portion. The pressing portion extends from the pedestal portion to the inner peripheral side of the rotating frame, and presses one peripheral end of the rotating drum when attached to the rotating frame. The leg portions extend from opposite ends along the substantially cylindrical circumference of the rotating frame of the pedestal portion to the side opposite to the side where the standing portion stands, and the surfaces facing each other abut against a predetermined portion of the decorative frame. .

  Further, in the illumination device according to the third embodiment below, the elastic portion further includes an arm portion and a protection portion. The arm portion extends to the outer peripheral side of the rotation frame. A protection part is attached to the front-end | tip extended to the outer peripheral side of the rotation frame of an arm part, and protects a front-end | tip.

[Embodiment]
(Configuration of lighting device)
FIG. 1 is a perspective view illustrating a configuration of a lighting device according to an embodiment. FIG. 2 is a top view illustrating the configuration of the illumination device according to the embodiment. FIG. 1 is a perspective view of an illuminating device 1 according to an embodiment as seen from an upper oblique direction that is the opposite side of the light irradiation direction. FIG. 2 is a top view of the illumination device 1 according to the embodiment shown in FIG. 1 as viewed from above, which is the opposite side of the light irradiation direction. In addition, the A direction shown in FIG. 1 and FIG. 2 is the same direction.

  The lighting device 1 is a downlight embedded in a ceiling of a building, for example, and emits light downward as shown in FIG. 1 by causing a semiconductor light emitting element such as an LED mounted therein to emit light. The illuminating device 1 includes a lamp body 10, a decorative frame 30, a rotation restricting portion 40, and fixing portions 60a to 60c.

  The lamp body 10 includes heat radiating fins 11, a lens frame 15, and a rotating drum 20. The heat radiating fins 11 are formed of a metal having excellent heat radiating properties such as aluminum die casting. The lens frame 15 is assembled below the heat radiating fins 11 and accommodates a substrate on which LEDs are arranged as light sources. The rotating cylinder 20 is formed in a substantially cylindrical shape by a metal such as aluminum die casting. In the lighting device 1, the heat radiation fin 11 side of the lamp body 10 is referred to as the upper side, and the rotating drum 20 side is referred to as the lower side. The rotating cylinder 20 has a protrusion 21 extending in the outer peripheral direction at one location on the upper end of the substantially cylindrical shape (see FIG. 2).

  The decorative frame 30 is formed of, for example, a metal such as aluminum die casting. The decorative frame 30 has a substantially cylindrical shape whose upper and lower ends open in a substantially circular shape. The decorative frame 30 adjusts the irradiation direction of the light irradiated from the lamp body 10 by the cylindrical shape of the decorative frame 30. The decorative frame 30 has a substantially annular flange 31 below, and has a peripheral side wall 32 standing from the inner periphery of the flange 31. The decorative frame 30 corresponds to a rotating frame that rotates the inserted rotating cylinder 20 by sliding along the inner periphery of the decorative frame 30.

  The rotation restricting portion 40 is attached to one place of the peripheral side wall 32 of the decorative frame 30 by screwing of a screw 41. The rotation restricting portion 40 has a contact portion 40 a that extends from the attachment position to the decorative frame 30 toward the center direction of the decorative frame 30 above the upper circumferential edge of the rotating cylinder 20 fitted in the decorative frame 30. Have. When the lamp body 10 rotates along the inner periphery of the decorative frame 30, the protrusion 21 of the rotating barrel 20 comes into contact with the contact portion 40 a to restrict the rotation of the lamp body 10.

  The decorative frame 30 includes attachment portions 33a to 33c that are arranged on the peripheral side wall 32 at substantially equal intervals. As shown in FIG. 1, the fixing portions 60 a to 60 c are attached to the attachment portions 33 a to 33 c, respectively. The fixing portions 60a to 60c are attached to the attachment portions 33a to 33c by inserting spring leg portions 60a2-3L and 60a2-3R, which will be described later, into predetermined insertion grooves of the attachment portions 33a to 33c. As will be described in detail later, the fixing portions 60 a to 60 c fix the lighting device 1 to the ceiling plate by sandwiching the ceiling plate to which the lighting device 1 is attached with the flange 31 of the decorative frame 30.

  In FIG. 1, the arm portions 60a2-2 to 60c2-2 of the attachment portions 33a to 33c are shown in different modes. The attachment portions 33a to 33c have the same configuration except for the attachment positions. The arm portions 60a2-2 to 60c2-2 are in an initial state in a state where an external force is not applied to the aspect shown in FIG.

  The arm part 60a2-2 shown in FIG. 1 is located at a position where the arm part 60a2-2 is moved slightly upward by the external force against the elastic force applied to the arm part 60a2-2 from the mode shown in FIG. Further, the arm portion 60b2-2 shown in FIG. 1 is further moved upward by the external force against the elastic force applied to the arm portion 60b2-2 as compared with the arm portion 60a2-2 shown in FIG. It is in the position moved to. In addition, the arm portion 60c2-2 shown in FIG. 1 makes the arm portion 60c2-2 as much as possible by an external force that resists the elastic force applied to the arm portion 60c2-2, as compared with the arm portion 60b2-2 shown in FIG. It is in the position moved up.

  As shown in FIGS. 1 and 2, the fixing portions 60 a to 60 c are attached to the decorative frame 30 in a state where the lamp body 10 in which the rotating drum 20 is fitted is fitted into the decorative frame 30. And the fixing | fixed part 60a-60c hold | suppresses the upper end of the rotation trunk | drum 20 from upper direction with the holding | pressing board part 60a1-1L, 60a1-1R-60c1-1L, 60c1-1R. The holding plate portions 60a1-1L, 60a1-1R to 60c1-1L, and 60c1-1R are made from the pedestal portions 60a1-1 to 60c1-1, which will be described later, of the fixing portions 60a to 60c attached to the outer periphery of the decorative frame 30. It is the extending | stretching part extended | stretched toward the center direction. Then, the holding plate portions 60 a 1-1 L, 60 a 1-1 R to 60 c 1-1 L, and 60 c 1-1 R hold down the upper end circumference of the rotating drum 20 of the lamp body 10 fitted in the decorative frame 30. Even if the rotating drum 20 rotates with respect to the decorative frame 30, the fixing portions 60 a to 60 c do not come into contact with the protruding portion 21 and restrict the rotation.

  And the rotation trunk | drum 20 is attached to the makeup | decoration frame 30 so that rotation by the holding | suppression board part 60a1-1L, 60a1-1R-60c1-1L, and 60c1-1R is possible, and it comes out of the decoration frame 30. It is suppressed.

  The rotating drum 20 and the decorative frame 30 are the same or different materials considering the frictional resistance and the rotating torque when the rotating drum 20 rotates with respect to the decorative frame 30. For example, both the rotating drum 20 and the decorative frame 30 may be metal. Alternatively, for example, both the rotating drum 20 and the decorative frame 30 may be a resin such as ABS (Acrylonitrile Butadiene Styrene) resin. Alternatively, for example, one of the rotating drum 20 and the decorative frame 30 may be a metal and the other may be a resin. Alternatively, for example, the rotating drum 20 and the decorative frame 30 may be formed of materials having different friction coefficients.

(Structure of fixed part and attachment mode to decorative frame)
FIG. 3 is a perspective view illustrating a configuration of a fixing portion of the lighting device according to the embodiment. FIG. 4 is an exploded perspective view showing the configuration of the illumination device according to the embodiment. In FIG. 3, since the fixing parts 60a to 60c have the same configuration, the fixing part 60a will be described as a representative. Further, in FIG. 4, for convenience of explanation, the lamp body 10 is not shown, and only a mode in which the fixing portions 60 a to 60 c are attached to the decorative frame 30 is shown. However, actually, after fitting the lamp body 10 into the decorative frame 30, the fixing portions 60 a to 60 c are attached to the decorative frame 30, and the rotating drum 20 of the lamp body 10 is pressed so as not to come out of the decorative frame 30.

  As shown in FIGS. 3 and 4, the fixing portion 60a includes a pedestal portion 60a1, a spring portion 60a2, and a cap portion 60a3.

  The pedestal portion 60a1 includes holding plate portions 60a1-1L and 60a1-1R extending from the vicinity of both ends of the pedestal surface 60a1-1. The pedestal portion 60a1 has pedestal leg portions 60a1-2L and 60a1-2R extending downward from the holding plate portions 60a1-1L and 60a1-1R, respectively. The pedestal portion 60a1 extends from a standing surface 60a1-3 standing from one end of the pedestal surface 60a1-1, and an upper surface 60a1 extending from the standing surface 60a1-3 and forming a plane substantially parallel to the pedestal surface 60a1-1. -4. The pedestal portion 60a1 has an insertion hole 60a1-5 through which the screw 60a4 is inserted on the pedestal surface 60a1-1.

  As described above, the holding plate portions 60a1-1L and 60a1-1R are portions that hold the rotating drum 20 of the lamp body 10 from the upper periphery when the fixing portion 60a is attached to the attachment portion 33a of the decorative frame 30. is there. The pedestal legs 60a1-2L and 60a1-2R come into contact with a predetermined portion of the attachment portion 33a when the fixing portion 60a is attached to the attachment portion 33a of the decorative frame 30, and the pedestal portion with respect to the attachment portion 33a. This is the part that holds the mounting position of 60a1.

  The upper surface 60a1-4 extends from the vicinity of both ends of the upper surface 60a1-4 in the direction opposite to the direction in which the pressing plate portions 60a1-1L and 60a1-1R extend, and the upper pressing plate portions 60a1-4L and 60a1-4R extend. Have The upper surface 60a1-4, the upper presser plate portions 60a1-4L, and 60a1-4R are substantially U-shaped when viewed from above. The substantially U-shaped portion is a portion with which the arm portion 60a2-2 comes into contact when an arm portion 60a2-2 of a spring portion 60a2 described later is elastically deformed by an external force and pushed up to the maximum. .

  The pedestal portion 60a1 has a substantially U-shape when viewed from the side, with the pedestal surface 60a1-1, the standing surface 60a1-3, and the upper surface 60a1-4. As will be described later, the substantially U-shaped portion is a portion in which the coil springs 60a2-1L and 60a2-1R of the spring portion 60a2 are accommodated. The coil springs 60a2-1L and 60a2-1R are pressed from above by the upper pressing plate portions 60a1-4L and 60a1-4R.

  The spring part 60a2 is formed of an elastic metal. The spring part 60a2 includes coil springs 60a2-1L and 60a2-1R, substantially U-shaped arm parts 60a2-2, and spring leg parts 60a2-3L and 60a2-3R. The spring leg 60a2-3L extends downward substantially parallel to the pedestal leg 60a1-2L from the first winding end of the coil of the coil spring 60a2-1L.

  Similarly, the spring leg 60a2-3R extends downward substantially parallel to the pedestal leg 60a1-2R from the first winding end of the coil of the coil spring 60a2-1R. The spring leg portions 60a2-3L and 60a2-3R pass through the vicinity of the extending bases of the holding plate portions 60a1-1L and 60a1-1R of the pedestal portion 60a1 and extend downward from above the pedestal portion 60a1.

  The arm portion 60a2-2 has a substantially U-shaped first end connected to the second winding end of the coil of the coil spring 60a2-1L. In addition, the second end of the substantially U-shaped end of the arm 60a2-2 is connected to the second winding end of the coil of the coil spring 60a2-1R.

  The spring part 60a2 is, for example, a torsion spring. The coil springs 60a2-1L and 60a2-1R of the spring part 60a2 give an elastic force to the arm part 60a2-2. The coil springs 60a2-1L and 60a2-1R are described below as an initial state with respect to the decorative frame 30 in a state where the spring leg portions 60a2-3L and 60a2-3R are inserted into the predetermined insertion grooves of the attachment portion 33a of the decorative frame 30. The arm portion 60a2-2 is positioned at the position shown in FIG.

  When the arm portion 60a2-2 is pulled upward from the state shown in FIG. 6, the arm portion 60a2-2 is lifted against the elastic force of the coil springs 60a2-1L and 60a2-1R. In order to maintain the state in which the arm portion 60a2-2 is pulled upward, it is necessary to hold the arm portion 60a2-2 with a counter force against the elastic force of the coil springs 60a2-1L and 60a2-1R.

  Note that the substantially U-shaped tip portion of the arm portion 60a2-2 is fitted with the cap portion 60a3, and the substantially U-shaped tip portion is protected. The cap part 60a3 is formed of a resin such as an ABS resin.

  As shown in FIG. 4, the spring part 60a2 to which the cap part 60a3 is attached is assembled to the pedestal part 60a1. Then, the spring leg portions 60a2-3L and 60a2-3R of the assembled spring portion 60a2 are inserted into predetermined insertion grooves of the attachment portion 33a of the decorative frame 30. In addition, the pedestal legs 60a1-2L and 60a1-2R of the pedestal 60a1 come into contact with predetermined portions of the attachment portion 33a of the decorative frame 30.

  The pedestal portion 60a1 is made by the pedestal legs 60a1-2L and 60a1-2R with the spring legs 60a2-3L and 60a2-3R being inserted into the predetermined insertion grooves of the attachment portion 33a of the decorative frame 30. The attachment of the fixing part 60a in the frame 30 is reinforced. Furthermore, the base part 60a1 holds the mounting position of the fixing part 60a on the decorative frame 30 by the base leg parts 60a1-2L and 60a1-2R. The pedestal portion 60a1 is fixed to the decorative frame 30 by inserting the screw 60a4 through the insertion hole 60a1-5 and screwing it into the predetermined screw hole of the attachment portion 33a.

  The method for fixing the pedestal portion 60a1 to the decorative frame 30 is not limited to screwing with a screw, but may be a push pin or the like. The pedestal portion 60b1 and the pedestal portion 60c1 are also fixed to the decorative frame 30 in the same manner as the pedestal portion 60a1.

  The fixing portion 60a is easily attached to the decorative frame 30 with the above-described configuration. Further, the fixing portion 60a has at least one of the pedestal leg portions 60a1-2L and 60a1-2R facing each other of the mounting portion 33a even when the rotating drum 20 is rotated by sliding with respect to the decorative frame 30. Since it contacts the predetermined part, the fixed position of the decorative frame 30 can be maintained.

(Structure of the lamp)
FIG. 5 is an exploded perspective view illustrating a configuration of a lamp body of the lighting apparatus according to the embodiment.

  The lamp body 10 includes a radiation fin 11, a substrate 12, a lens base 13, a color rendering filter 14, a lens frame 15, and a rotating drum 20. As shown in FIG. 5, the lamp body 10 is configured by assembling a rotating drum 20, a lens frame 15, a color rendering filter 14, a lens base 13, a substrate 12, and a radiation fin 11 from below.

  The radiating fins 11 radiate heat generated by a light source mounted downward on the substrate 12 positioned below. The radiating fin 11 has holes at both ends of a substantially circular diameter on the flat surface. In addition, the radiating fin 11 is routed upward by an electric cable (not shown) that supplies power to a light source mounted on the substrate 12.

  The substrate 12 has LEDs (not shown) disposed as light sources on the lower surface. The substrate 12 has a control circuit (not shown) that supplies power to the plurality of LEDs via the above-described electric cable and controls light emission of the LEDs. The substrate 12 has notches at both ends of a substantially circular diameter.

  The lens base 13 has a lens 13a. In FIG. 5, reference numeral 13 a is given to one lens, but each truncated cone-shaped member formed on the lens base 13 corresponds to the lens 13 a. The lens base 13 diverges or focuses light from the LEDs disposed on the substrate 12 by the lens 13a. The lens base 13 accommodates the substrate 12 from above and a color rendering filter 14 is attached from below. The lens base 13 is provided with a groove for attaching the color rendering filter 14 on the inner periphery. The groove portion has a concave portion along the inner periphery of the lens base 13 and a guide groove that guides a protrusion of a color rendering filter 14 described later from the lower end of the lens base 13 to the concave portion.

  The lens base 13 has curved portions at both ends of the diameter of the substantially cylindrical main body. The curved portion becomes a concave portion on the outer periphery of the lens base 13 and becomes a convex portion on the inner periphery of the lens base 13. When the lens base 13 accommodates the substrate 12 from above, the notch of the substrate 12 is aligned with the convex portion of the lens base 13.

  The color rendering filter 14 adds color to the light when transmitting the light emitted from the LEDs arranged on the substrate 12. The color rendering filter 14 has protrusions that are attached to the lens base 13 at both ends of a substantially circular diameter. The color rendering filter 14 is attached to the lens base 13 by causing the protrusion to enter from the above-described guide groove and rotating by a predetermined angle after the protrusion reaches the above-described concave portion. Similar to the color rendering filter 14, various members in place of the color rendering filter 14 may be attached.

  The lens frame 15 accommodates the lens base 13 on which the substrate 12 is accommodated and the color rendering filter 14 is attached. The lens frame 15 has convex portions projecting toward the inner periphery at both ends of a substantially circular diameter. The convex part of the lens frame 15 has a screw hole. The lens frame 15 is attached with the heat radiation fin 11 from above in a state where the substrate 12 is accommodated and the lens base 13 with the color rendering filter 14 is accommodated.

  When the lens frame 15 accommodates the lens base 13 from above, the concave portion of the lens base 13 is aligned with the convex portion of the lens frame 15 described above. The radiating fin 11 is attached to the lens frame 15 by aligning the hole of the radiating fin 11 and the screw hole of the lens frame 15, and then using the screw inserted through the hole of the radiating fin 11 as the screw hole of the lens frame 15. This is done by screwing. The attachment of the radiating fin 11 to the lens frame 15 is not limited to screwing but may be pinned.

  Further, the lens frame 15 has rotation shaft ports 15a and 15b. The lens frame 15 has a rotation shaft hole penetrating the rotation shaft ports 15a and 15b along the line II shown in FIG.

  The rotating cylinder 20 accommodates the lens frame 15 from above. The rotating cylinder 20 has rotating shaft ports 23a and 23b. The rotating cylinder 20 accommodates the lens frame 15, aligns the II line of the lens frame 15 and the II-II line of the rotating cylinder 20, and then screws or pins from the rotating shaft ports 23a and 23b. Insert and fix. In this way, the lamp body 10 including the lens frame 15 is fixed to the rotating body 20. Alternatively, the rotating body 20 is mounted around the lamp body 10. Then, the lamp body 10 can be rotated with respect to the rotating body 20 as a rotation center line serving as a central axis when the II-II line (or II line) is rotated.

  In addition, a rotation center line serving as a central axis when the rotation cylinder 20 rotates on the inner periphery of the decorative frame 30 and a rotation center serving as a center axis for rotating the lamp body 10 with respect to the rotation cylinder 20. The II-II line (or II line), which is a line, is in a positional relationship of torsion in space.

  Further, the rotating cylinder 20 has a protrusion 21 on the periphery of the upper end. As described above, the protrusion 21 of the rotating drum 20 comes into contact with the contact portion 40 a of the rotation restricting portion 40 attached to the decorative frame 30, so that the rotating drum 20 is in contact with the decorative frame 30. It is restricted to rotate beyond a predetermined rotation angle.

(Appearance of lighting device with fixed part)
FIG. 6 is a perspective view illustrating the lighting device according to the embodiment. FIG. 6 shows an initial state of a fixed state in which the lamp body 10 is attached to the decorative frame 30 and the lamp body 10 is fixed to the decorative frame 30 by the fixing portions 60 a to 60 c in the lighting device 1. In the illuminating device 1 in the state shown in FIG. 6, cap portions 60a3 to 60c3 are fitted to the curved distal ends of the arm portions 60a2-2 to 60c2-2 of the fixing portions 60a to 60c, respectively. Hereinafter, the state of the lighting device 1 in the state of the arm portions 60a2-2 to 60c2-2 illustrated in FIG. 6 is referred to as an initial state.

  And in the state shown in FIG. 6, the front-end | tip part which attached the cap parts 60a3-60c3 of the arm parts 60a2-2 to 60c2-2 of the fixing | fixed part 60a-60c has gone around to the downward direction of the flange 31 of the decorative frame 30. . For this reason, as for the decorative frame 30, the front-end | tip part of cap part 60a3-60c3 becomes a leg, and does not contact a placement surface directly.

  Here, the lower surface of the decorative frame 30 is a portion exposed to the outside when the lighting device 1 is attached to the ceiling. On the other hand, the fixing portions 60a to 60c including the cap portions 60a3 to 60c3 are portions that are not exposed to the outside and hidden in the ceiling when the lighting device 1 is attached to the ceiling.

  Therefore, as shown in FIG. 6, the decorative frame 30 does not come into direct contact with the arrangement surface, so that, for example, before the operation of attaching the lighting device 1 to the ceiling surface starts, contact with the surface on which the lighting device 1 is temporarily placed. Thus, the decorative frame 30 can be prevented from being damaged or damaged.

(Attachment mode for attaching the lighting device to the indoor ceiling)
FIG. 7 and FIG. 8 are diagrams illustrating an attachment aspect in which the lighting device according to the embodiment is attached to the indoor ceiling. FIG. 8 is a view of the lighting device 1 attached in the direction B shown in FIG.

  When the lighting device 1 is embedded and installed in the ceiling plate 100 of a building, the arm portions 60a2-2 to 60c2-2 of the fixing portions 60a to 60c are pulled up to positions where they are substantially parallel to the peripheral side wall 32 of the decorative frame 30. It is done. And the illuminating device 1 is inserted in the embedding hole of the ceiling board 100 in the state which the fixing | fixed part 60a-60c was pulled up to the position substantially parallel to the surrounding side wall 32 of the decorative frame 30. FIG. And the illuminating device 1 is pushed up until the flange 31 contacts a ceiling.

  The arm portions 60 a 2-2 to 60 c 2-2 are not pressed by an external force, so that the arm portions 60 a 2-2 to 60 c 2-2 are in the state shown in FIGS. Thereby, the illuminating device 1 is embedded and installed in the ceiling board 100.

(Modification)
In the above embodiment, the spring parts 60a2 to 60c2 of the fixing parts 60a to 60c arranged evenly on the peripheral side wall 32 of the decorative frame 30 of the lighting device 1 are torsion springs. However, the present invention is not limited to this, and a leaf spring may be used. Moreover, in the above embodiment, the fixing part was set to three fixing parts 60a to 60c. However, the present invention is not limited to this, and the fixing portions may be provided at approximately equal intervals in two places or four or more places of the decorative frame 30.

  Further, in the above embodiment, for example, the pressing plate portions provided in the fixing portion 60a are the two pressing plate portions 60a1-1L and 60a1-1R. However, the present invention is not limited to this, and the number of pressing plate portions extending from the pedestal surface 60a1-1 may be one or three or more.

(Effect by embodiment and modification)
According to the embodiment and the modification described above, in the lighting device 1, the fixing portions 60 a to 60 c are arranged on the peripheral side wall 32 of the decorative frame 30 at substantially equal intervals. And the fixing | fixed part 60a-60c hold | suppresses plate part 60a1-1L and 60a1 which hold | suppress so that the rotation trunk | drum 20 of the lamp body 10 may not remove | deviate from the decorative frame 30 to the base parts 60a1-60c1 which support spring part 60a2-60c2. -1R to 60c1-1L, 60c1-1R. Thereby, the illuminating device 1 can hold down the rotation cylinder 20 fitted to the decorative frame 30 with an equal force, and can stabilize the rotation of the lamp body 10 along the inner periphery of the decorative frame 30. it can. Moreover, the illuminating device 1 can hold | suppress so that the rotation trunk | drum 20 of the lamp body 10 may not remove | deviate from the decorative frame 30, without increasing a number of parts.

  Moreover, according to the above embodiment and modification, the illuminating device 1 is the spring part 60a2-60c2 of the fixing | fixed part 60a-60c, for example, if it is the fixing | fixed part 60a, two coil springs 60a2-1L and 60a2-1R will be demonstrated. A screw 60a4 is disposed between them. And the illuminating device 1 fixes the fixing | fixed part 60a to the decorative frame 30 with the screw 60a4. Thereby, the illuminating device 1 can attach the fixing | fixed part 60a-60c to the decorative frame 30 with space saving and one screw. With such a configuration, since it can be applied to each of the fixing portions 60a to 60c arranged evenly on the peripheral side wall 32 of the decorative frame 30 of the lighting device 1, even in the case of the large lighting device 1, space saving and one screw are possible. Thus, the fixing portions 60 a to 60 c can be attached to the decorative frame 30.

  Moreover, according to the above embodiment and modification, the front-end | tip of arm part 60a2-2-60c2-2 of fixing | fixed part 60a-60c is a decorative frame in the initial state of the illuminating device 1, for example, at the time of attachment construction of the illuminating device 1. Do not touch 30. Therefore, the illuminating device 1 can protect the illuminating device 1 without damaging the decorative frame 30 in the initial state by the cap portions 60a3 to 60c3 provided for protecting the operator's finger during construction work. .

  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 embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and their modifications are included in the scope and gist of the invention, and are also included in the invention described in the claims and the equivalents thereof.

DESCRIPTION OF SYMBOLS 10 Lamp body 20 Rotating drum 30 Decorative frame 31 Flange 32 Peripheral side wall 33a, 33b, 33c Attachment part 60a, 60b, 60c Fixed part 60a1, 60b1, 60c1 Base part 60a1-1, 60b1-1, 60c1-1 Base surface 60a1 -1L, 60a1-1R, 60b1-1L, 60b-1R, 60c1-1L, 60c1-1R Holding plate 60a1-2L, 60a1-2R, 60b1-2L, 60b1-2R, 60c1-2L, 60c1-2L Portions 60a1-3, 60b1-3, 60c1-3 Standing surfaces 60a1-4, 60b1-4, 60c1-4 Upper surfaces 60a1-4L, 60a1-4R, 60b1-4L, 60b1-4R, 60c1-4L, 60c1- 4R presser plate portions 60a1-5, 60b1-5, 60c1-5 insertion holes 60a2, 60b2, 0c2 Spring portions 60a2-1L, 60a2-1R, 60b2-1L, 60b2-1R, 60c2-1L, 60c2-1R Coil springs 60a2-2, 60b2-2, 60c2-2 Arm portions 60a2-3L, 60a2-3R, 60b2- 3L, 60b2-3R, 60c2-3L, 60c2-3R Spring leg portions 60a3, 60b3, 60c3 Cap portions 60a4, 60b4, 60c4 Screws

Claims (3)

A lamp body on which a light emitting element is mounted and a rotating drum is mounted;
A rotating frame having a peripheral edge at one peripheral end of a substantially cylindrical shape that is inserted into the mounting hole of the ceiling plate, and in which the rotating drum is rotatably inserted;
A holding portion that is attached to the rotating frame in a state where the rotating drum is fitted into the rotating frame, and holds the fitting of the rotating drum into the rotating frame;
An elastic part attached to the rotating frame and holding the rotating frame, the holding part and the ceiling plate together with the peripheral edge by an elastic force;
A lighting device comprising: The holding part is
A pedestal portion on which the elastic portion is placed;
A standing part standing on the pedestal part;
An upper surface extending from the standing portion to the outer peripheral side of the rotating frame and pressing the elastic portion placed on the pedestal portion;
A pressing portion that extends from the pedestal portion toward the inner peripheral side of the rotating frame and presses one peripheral end of the rotating barrel when attached to the rotating frame;
The pedestal portion extends from both ends of the rotating frame along the substantially cylindrical circumference to opposite sides of the side where the standing portion is erected, and the surfaces facing each other are in contact with predetermined portions of the rotating frame. The contacting leg;
The illumination device according to claim 1, further comprising: The elastic part is
An arm extending to the outer peripheral side of the rotating frame;
A protection portion that is attached to a distal end of the arm portion extending toward the outer peripheral side of the rotating frame and protects the distal end;
The illumination device according to claim 1, further comprising:

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