JP2015050019A - Lighting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lighting device capable of improving the degree of freedom for a light irradiation direction and ensuring smooth rotation of a rotational part.SOLUTION: A leg 41 of a rotation restriction section 40 is a region fitted into a fitting groove 33 of a decorative frame 30. The rotation restriction section 40 slidably moves relatively to the decorative frame 30 when the leg 41 is fitted into the fitting groove 33 and slidably moves in the fitting groove 33. A pedestal 42 of the rotation restriction section 40 supports an annular convex portion 22 of a rotational body 20 of a lamp body 10 in a state in which the rotational body 20 is fitted into the decorative frame 30 and in which the leg 41 of the rotation restriction section 40 is fitted into the fitting groove 33. Since the decorative frame 30 includes a plurality of convex portions 35 on an upper end face of a side circumferential surface 32, the decorative frame 30 abuts on the annular convex portion 22 of the rotational body 20 via points by the respective convex portions 35.

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.

  However, since the rotation amount of the inner frame with respect to the outer frame is restricted to a predetermined amount, the lighting device has a low degree of freedom in the rotation of the inner frame with respect to the outer frame and a low degree of freedom in the light irradiation direction of the lighting device. .

Japanese Patent No. 5169615

  The problem to be solved by the present invention is to provide a lighting device that increases the degree of freedom in the direction of light irradiation.

  The illumination device according to an example of the embodiment includes a lamp, a rotation frame, and a rotation restricting unit. The lamp is mounted with a light emitting element, and a rotating drum having a convex portion is mounted around the lamp. The rotating frame is fitted into the rotating cylinder so that the first rotation is possible. The rotation restricting portion is inserted into an insertion groove portion provided in the rotation frame, slides in the insertion groove portion, contacts the convex portion, and restricts the first rotation.

  According to the illuminating device concerning an example of embodiment, the freedom degree of the irradiation direction of light can be raised and rotation of a rotation part can be performed smoothly.

FIG. 1 is a perspective view illustrating a lighting device according to an embodiment. FIG. 2 is an exploded perspective view of the lighting device according to the embodiment. FIG. 3 is a perspective view illustrating an aspect of rotation of the lamp body of the lighting apparatus according to the embodiment. FIG. 4 is a perspective view of a decorative frame of the lighting device according to the embodiment. FIG. 5 is a perspective view illustrating a manner in which the rotating drum is fitted into the decorative frame in the lighting device according to the embodiment. FIG. 6 is a perspective view illustrating a rotation restricting portion of the illumination device according to the embodiment. FIG. 7 is a perspective view illustrating an aspect of attaching the rotation restricting unit to the illumination device according to the embodiment. FIG. 8A is a perspective view illustrating an aspect of attaching the rotation restricting unit to the illumination device according to the embodiment. FIG. 8B is a perspective view illustrating an aspect of attaching the rotation restricting unit to the illumination device according to the embodiment. FIG. 9 is a perspective view of the illumination device according to the embodiment as viewed from the light irradiation side direction. FIG. 10 is a diagram illustrating a manner of mounting the color rendering filter in the lighting apparatus according to the embodiment. FIG. 11 is a diagram illustrating an outline of a cross-section of an end portion of the color rendering filter mounted in the lighting device according to the embodiment. FIG. 12A is a perspective view illustrating a manner of wiring an electric cable in the lighting apparatus according to the embodiment. FIG. 12B is a top view illustrating a manner of wiring of the electric cable in the lighting device according to the embodiment.

  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, a rotation frame, and a rotation restricting unit. The lamp is mounted with a light emitting element, and a rotating drum having a convex portion is mounted around the lamp. The rotating frame is fitted into the rotating cylinder so that the first rotation is possible. The rotation restricting portion is inserted into an insertion groove portion provided in the rotation frame, slides in the insertion groove portion, contacts the convex portion, and restricts the first rotation.

  In the illumination device according to the second embodiment described below, the rotation restricting unit further includes a leg, a pedestal, a holding unit, and a contact part. The leg portion is inserted into the insertion groove portion and slides in the insertion groove portion. The pedestal is in contact with an annular projection provided in an annular shape on the outer periphery of the rotating drum and supports the rotating drum. The holding part holds the support of the annular convex part by the pedestal part. The abutting portion abuts on the convex portion and restricts the first rotation.

  In the lighting device according to the third embodiment below, the lamp further includes an insertion portion. The insertion part is mounted with the light emitting element inside the lamp body by the second rotation with respect to the rotation cylinder centering on the rotation center line having a torsional positional relationship with the rotation center line of the first rotation. The cable is inserted between the inside and the outside of the lamp body at a position where the cable connected to the board to be exposed is not exposed to the illumination direction side by the light emitting element.

[Embodiment]
(Configuration of lighting device)
FIG. 1 is a perspective view illustrating a lighting device according to an 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. 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 lighting device 1 includes a lamp body 10 and a decorative frame 30.

  The lamp body 10 includes heat radiating fins 11 and a rotating drum 20. The heat radiating fins 11 are formed in a substantially triangular shape by a metal having excellent heat radiating properties such as aluminum die casting. The radiating fin 11 has a fixing hole 11a for binding and fixing an electric cable (not shown) connected to the lower substrate 12 (see FIG. 2).

  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 convex portion 21 extending in the outer peripheral direction at one location on the upper end of the substantially cylindrical shape.

  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 a side peripheral surface 32 that stands up from the inner periphery of the flange 31. The decorative frame 30 corresponds to a rotating frame that rotates the inserted rotating cylinder 20 along the inner periphery of the decorative frame 30.

  The illuminating device 1 is formed by inserting the rotating drum 20 of the lamp body 10 into the decorative frame 30. The rotating drum 20 is fitted into the decorative frame 30 until the annular convex portion 22 provided on the outer periphery of the rotating drum 20 contacts the upper end of the decorative frame 30. The decorative frame 30 has two fixing portions 34 a to 34 b positioned on the side peripheral surface 32 at substantially equal intervals.

  In the state where the annular protrusion 22 is in contact with the upper end of the decorative frame 30, the rotating drum 20 is inserted into the fixing portions 34 a to 34 b with their tips inserted into the fixing portions 34 a to 34 b, respectively. Attached to the decorative frame 30. That is, when the fixing members 50a to 50b are claw-engaged with the fixing portions 34a to 34b, the annular members 22 are pressed from above. In this way, the rotating body 20 can be rotated by sliding on the inner periphery of the decorative frame 30.

  In addition, since the fixing | fixed part 34a-34b attaches the rotation trunk | drum 20 to the decorative frame 30, the number and arrangement position can be changed suitably.

  In addition, the decorative frame 30 has an insertion groove portion 33 for inserting the rotation restricting portion 40 at one place on the periphery of the upper end. The fitting groove portion 33 is provided along the cylindrical circumference of the decorative frame 30. The insertion groove portion 33 includes an insertion groove 33a (see FIG. 8B) positioned on the outer peripheral side of the decorative frame 30, and an insertion support portion 33b (see FIG. 8B) positioned on the inner peripheral side of the decorative frame 30 adjacent to the insertion groove 33a. Have. The length of the insertion groove 33a is longer than the length of the insertion support portion 33b.

  The length in the width direction of the leg portion 41 (see FIG. 6) of the rotation restricting portion 40 fitted into the fitting groove portion 33 is shorter than the length of the fitting groove portion 33. That is, the rotation restricting portion 40 can slide along the insertion groove portion 33 in a state where the leg portion 41 is inserted in the insertion groove portion 33.

  The rotation restricting portion 40 is inserted in the insertion groove portion 33 in advance when the rotation barrel 20 of the lamp body 10 is inserted into the decorative frame 30. In other words, the rotation barrel 20 of the lamp body 10 is attached to the decorative frame 30 after the rotation restricting portion 40 is inserted into the insertion groove portion 33.

  When the rotation cylinder 20 rotates on the inner periphery of the decorative frame 30, the rotation restriction unit 40 restricts the rotation more than the contact state by contacting the convex portion 21 of the rotation cylinder 20. Here, as described above, the rotation restricting portion 40 is slidable along the insertion groove portion 33 in a state where the leg portion 41 is inserted into the insertion groove portion 33. Therefore, even if the rotation cylinder 20 rotates in the inner periphery of the decorative frame 30, and the convex part 21 of the rotation cylinder 20 contact | abuts, the rotation control part 40 is along the insertion groove part 33 in the contacted state. Slide to allow further rotation of the rotating barrel 20.

  However, sliding of the rotation restricting portion 40 along the insertion groove portion 33 is restricted by the length of the insertion groove portion 33. Therefore, finally, the rotation of the rotation cylinder 20 on the inner periphery of the decorative frame 30 is the rotation restriction part 40 that reaches one end of the insertion groove part 33 in the rotation direction, and the convex part 21 of the rotation cylinder 20. Rotation is regulated by the contact of. The same is true even if the rotation of the rotating cylinder 20 is in the reverse direction.

  In this way, the rotation restricting portion 40 slides along the fitting groove portion 33 in a state where the rotation restricting portion 40 is in contact with the convex portion 21 of the rotation drum 20, so that the rotation drum 20 is located on the inner periphery of the decorative frame 30. A rotation angle of 360 ° or more can be ensured. The rotation angle that the rotation cylinder 20 can secure on the inner periphery of the decorative frame 30 is the length in the width direction of the leg portion 41 (see FIG. 6) of the rotation restriction portion 40 and the insertion groove portion 33. It depends on the length.

  In addition, the decorative frame 30 has attachment springs 60 a to 60 c attached to the side peripheral surface 32. The attachment springs 60a to 60c are metal plate elastic members. The attachment springs 60 a to 60 c are bent to a position substantially parallel to the side peripheral surface 32 of the decorative frame 30 by being pressed upward by an external force while being attached to the side peripheral surface 32 of the decorative frame 30.

  When the lighting device 1 is embedded in a ceiling of a building, the mounting springs 60 a to 60 c are bent to a position where the mounting springs 60 a to 60 c are substantially parallel to the side peripheral surface 32 of the decorative frame 30. And the illuminating device 1 is inserted in the ceiling embedding hole in the state by which the attachment springs 60a-60c were bent to the position substantially parallel to the side peripheral surface 32 of the decorative frame 30. And the illuminating device 1 is pushed up until the flange 31 contacts a ceiling. The attachment springs 60 a to 60 c are restored to the state shown in FIG. 1 by being no longer pressed by an external force, and sandwich the ceiling wall with the flange 31. Thereby, the illuminating device 1 is embedded and installed in the ceiling.

(Structure of the lamp)
FIG. 2 is an exploded perspective view of the lighting device according to the embodiment. FIG. 2 is a perspective view of the illuminating device 1 according to the embodiment when viewed from the upper oblique direction that is the opposite side of the light irradiation direction. 2, illustration of the fixing portions 34a to 34b, the fixing members 50a to 50b, and the mounting springs 60a to 60c is omitted.

  The lighting device 1 is configured by fitting the lamp body 10 into the decorative frame 30 together with the rotation restricting portion 40. 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 illustrated in FIG. 2, 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. 2, reference numeral 13a is given to one lens, but each of the truncated cone-shaped members formed on the lens base 13 corresponds to the lens 13a. 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 includes a concave portion along the inner periphery of the lens base 13 and a guide groove that guides a convex portion of the 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 convex portions for attachment 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 convex portion to enter from the above-described guide groove and rotating by a predetermined angle after the convex portion reaches the above-described concave portion.

  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 drum 20 has a convex portion 21 on the periphery of the upper end. As described above, the convex portion 21 of the rotating drum 20 abuts against the rotation restricting portion 40 fitted in the fitting groove portion 33 of the decorative frame 30, so that the rotating drum 20 is predetermined with respect to the decorative frame 30. It is restricted to turn beyond the turning angle.

(Mode of rotation of the lamp)
FIG. 3 is a perspective view illustrating an aspect of rotation of the lamp body of the lighting apparatus according to the embodiment. As shown in FIG. 3, the lamp body 10 has a heat radiating fin 11 serving as a rotation center line serving as a central axis when the II-II line (or II line) is rotated with respect to the rotation barrel 20. Can be rotated until it comes into contact with the inner periphery of the rotating cylinder 20. As described above, the lamp body 10 can be rotated within a predetermined range with the II-II line (or II line) as a rotation center line, and the light irradiation angle can be adjusted.

(Composition of makeup frame)
FIG. 4 is a perspective view of a decorative frame of the lighting device according to the embodiment. Furthermore, the decorative frame 30 has a plurality of convex portions 35 that are positioned at predetermined intervals on the upper end surface of the side peripheral surface 32. Since the decorative frame 30 has a plurality of convex portions 35 on the upper end surface of the side peripheral surface 32, each convex portion is brought into contact with the annular convex portion 22 of the rotating drum 20 as shown in FIG. It will contact through the point by 35.

  In this manner, the decorative frame 30 and the annular convex portion 22 of the rotating drum 20 are in contact with each other via the plurality of convex portions 35, thereby reducing the contact area and reducing the frictional resistance due to the contact. Therefore, the rotating drum 20 can be rotated more smoothly with respect to the decorative frame 30. Note that the number of the convex portions 35 can be changed according to the material of the rotary drum 20 and the decorative frame 30, the torque required for the rotary drum 20 to rotate with respect to the decorative frame 30, and the like.

  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. In any of these cases, the decorative frame 30 and the annular convex portion 22 of the rotating drum 20 abut on each other via the plurality of convex portions 35, so that the rotating drum 20 has an appropriate frictional resistance against the decorative frame 30. Can be rotated smoothly.

(Structure of the rotation restricting part)
FIG. 6 is a perspective view illustrating a rotation restricting portion of the illumination device according to the embodiment. The rotation restricting portion 40 of the lighting device 1 according to the embodiment includes a leg portion 41, a pedestal portion 42, a first step portion 43, a second step portion 44, and a third step portion 45. In the rotation restricting portion 40, the respective portions are positioned in the order of the leg portion 41, the pedestal portion 42, the first step portion 43, the second step portion 44, and the third step portion 45 from below.

  The leg portion 41 has contact portions 41a to 41b at both ends in the width direction. The pedestal portion 42 has a pedestal surface 42a including, for example, convex portions 42b to 42c on the upper surface. The number of convex portions included in the pedestal surface 42a is not limited to two. The length of the base part 42 in the width direction is longer than the length of the leg part 41 in the width direction. The pedestal portion 42 has a convex portion 42d that protrudes toward the leg 41 below the pedestal surface 42a and includes contact portions 42e to 42f.

  As for the rotation control part 40, the 1st step part 43 is located in the part in which the base surface 42a of the base part 42 is not located. The length in the width direction of the first step portion 43 is the length in the width direction of any of the leg portion 41, the pedestal portion 42, the first step portion 43, the second step portion 44, and the third step portion 45. Longer than that.

  A second step portion 44 is positioned above the first step portion 43. The length of the second step portion 44 in the width direction is shorter than the length of the first step portion 43 in the width direction. The second step portion 44 includes a pressing plate 44 a provided so as to face the pedestal surface 42 a of the pedestal portion 42.

  A third step 45 is located above the second step 44. The length of the third step 45 in the width direction is shorter than the length of the second step 44 in the width direction. The third step portion 45 includes contact portions 45a to 45b.

(Attachment mode of rotation restricting part)
7, FIG. 8A, FIG. 8B are perspective views showing an aspect of attachment of the rotation restricting portion to the illumination device according to the embodiment. FIG. 8B is an enlarged view of the vicinity of a portion where the rotation restricting portion 40 shown in FIG. 8A and the convex portion 21 of the rotation barrel 20 abut. The rotation restricting portion 40 has the configuration shown in FIG. 6 and the function of each portion is as follows.

  The leg portion 41 of the rotation restricting portion 40 is a portion that is inserted into the insertion groove 33a in the insertion groove portion 33 of the decorative frame 30 (see FIG. 8B). The rotation restricting portion 40 slides with respect to the decorative frame 30 when the leg portion 41 is fitted in the fitting groove 33a and slides in the fitting groove 33a. When the leg portion 41 is inserted into the insertion groove 33a, the convex portion 42d of the rotation restricting portion 40 comes into contact with the insertion support portion 33b and is supported by the insertion support portion 33b (see FIG. 8B).

  The pedestal portion 42 of the rotation restricting portion 40 is configured so that the rotating drum 20 of the lamp body 10 is fitted in the decorative frame 30 and the leg portion 41 of the rotation restricting portion 40 is fitted in the fitting groove 33a. 20 annular protrusions 22 are supported (see FIGS. 7, 8A, and 8B). At this time, the annular convex portion 22 of the rotation barrel 20 is pressed from above by the pressing plate 44 a of the rotation restricting portion 40. That is, the annular convex portion 22 of the rotating drum 20 is positioned so as to be sandwiched between the pedestal surface 42a of the pedestal portion 42 and the pressing plate 44a. Accordingly, the annular convex portion 22 of the rotating drum 20 is supported by the pedestal surface 42a by the pressing plate 44a.

  In addition, the contact part in which the base part 42 of the rotation control part 40 contact | abuts with the cyclic | annular convex part 22 of the rotation trunk | drum 20 becomes the convex parts 42b-42c provided in the base surface 42a. Therefore, the annular convex portion 22 of the rotating drum 20 is held in contact with the convex portions 42b to 42c by the pressing plate 44a. Thereby, when the rotating drum 20 rotates along the inner periphery of the decorative frame 30, frictional resistance due to contact with the rotation restricting portion 40 can be reduced, and smooth along the inner periphery of the decorative frame 30. Can be rotated.

  In the second step portion 44, the rotating drum 20 rotates along the inner periphery of the decorative frame 30, and the convex portion 21 of the rotating drum 20 is connected to the third step portion 45 of the rotation restricting portion 40. The convex portion 21 is supported in a state of being in contact with the contact portion 45a or the contact portion 45b (see FIGS. 7, 8A, and 8B).

  For example, when the rotating drum 20 rotates along the inner periphery of the decorative frame 30 in the direction A shown in FIG. 8B, the convex portion 21 of the rotating drum 20 moves to the third step 45 of the rotation restricting portion 40. It abuts on the abutting part 45a. When the convex portion 21 of the rotary drum 20 is in contact with the contact portion 45a of the third step 45 of the rotation restricting portion 40 and the rotary drum 20 further rotates in the A direction, The rotation restricting portion 40 slides in the A direction while maintaining the contact state.

  And the contact part 41b of the rotation control part 40 contacts the terminal end of the insertion groove 33a in the A direction, and the contact part 42f of the rotation control part 40 contacts the terminal end of the insertion support part 33b in the A direction. . At this time, since the first step portion 43 is the widest portion in the rotation restricting portion 40, the end portion in the A direction of the first step portion 43 is supported by the end in the A direction of the fitting groove 33a. The

  Alternatively, for example, when the rotating drum 20 rotates along the inner periphery of the decorative frame 30 in the A direction, the rotation restricting portion 40 slides in the A direction along with the rotation. And the contact part 41b of the rotation control part 40 contacts the terminal end of the insertion groove 33a in the A direction, and the contact part 42f of the rotation control part 40 contacts the terminal end of the insertion support part 33b in the A direction. . The contact portion 41b of the rotation restricting portion 40 contacts the end of the insertion groove 33a in the A direction, and the contact portion 42f of the rotation restricting portion 40 contacts the end of the insertion support portion 33b in the A direction. When the rotating drum 20 is further rotated in the A direction in the contact state, the convex portion 21 of the rotating drum 20 is in contact with the third step portion 45 of the rotation restricting portion 40 while maintaining the contact state. It contacts the part 45a.

  On the other hand, for example, when the rotating drum 20 is rotated along the inner periphery of the decorative frame 30 in the direction B shown in FIG. 8B, the convex portion 21 of the rotating drum 20 is the third step of the rotation restricting portion 40. It abuts on the abutting part 45b of the part 45. When the convex portion 21 of the rotary cylinder 20 is in contact with the contact portion 45b of the third step 45 of the rotation restricting portion 40 and the rotary cylinder 20 further rotates in the B direction, The rotation restricting portion 40 slides in the B direction while maintaining the contact state.

  And the contact part 41a of the rotation control part 40 contacts the end of the insertion groove 33a in the B direction, and the contact part 42e of the rotation control part 40 contacts the end of the insertion support part 33b in the B direction. . At this time, since the first step portion 43 is the widest portion in the rotation restricting portion 40, the end portion in the B direction of the first step portion 43 is supported by the end in the B direction of the fitting groove 33a. The

  Alternatively, for example, when the rotating drum 20 rotates along the inner periphery of the decorative frame 30 in the B direction, the rotation restricting portion 40 slides in the B direction along with the rotation. And the contact part 41a of the rotation control part 40 contacts the end of the insertion groove 33a in the B direction, and the contact part 42e of the rotation control part 40 contacts the end of the insertion support part 33b in the B direction. . The contact portion 41a of the rotation restricting portion 40 abuts on the end in the B direction of the fitting groove 33a, and the contact portion 42e of the turn restricting portion 40 abuts on the end of the fitting support portion 33b in the B direction. When the rotating drum 20 is further rotated in the B direction in the contact state, the convex portion 21 of the rotating drum 20 is in contact with the third step 45 of the rotation restricting portion 40 while maintaining the contact state. It contacts the part 45b.

  In this way, the rotation restricting portion 40 that abuts on the convex portion 21 of the rotating drum 20 and restricts the rotation of the rotating drum 20 corresponds to the rotation of the rotating drum 20 along the fitting groove 33. Slide. For this reason, the rotation cylinder 20 can ensure a rotation angle of 360 ° or more in the rotation restriction by the convex portion 21 and the rotation restriction portion 40. Therefore, the freedom degree of the irradiation direction of the light of the illuminating device 1 can be raised.

(Aspect of color rendering filter installation and schematic configuration)
FIG. 9 is a perspective view of the illumination device according to the embodiment as viewed from the light irradiation side direction. Moreover, FIG. 10 is a figure which shows the aspect of mounting | wearing of the color rendering filter in the illuminating device concerning embodiment. Moreover, FIG. 11 is a figure which shows the outline of the cross section of the edge part of mounting | wearing of the color rendering filter in the illuminating device concerning Embodiment.

  As shown in FIG. 9, when the lighting device 1 according to the embodiment is attached to a ceiling (not shown), the flange 31 of the decorative frame 30 and the lens frame 15 of the lamp body 10 are attached to the ceiling. Visible from below. As shown in FIG. 9, the color rendering filter 14 has finger hooks 14a to 14b at both ends of a substantially circular diameter. The finger hooks 14 a to 14 b are formed to have a size that does not hinder the irradiation of light that passes through the color rendering filter 14.

  As shown in FIG. 10, the lens frame 15 has a structure in which the diameter of the inner circumference becomes shorter from the opening on the side where the color rendering filter 14 is attached toward the lens base 13 side. The lens frame 15 has a groove 15c drilled on the inner periphery. The groove 15c is provided at a position offset from the opening of the lens frame 15 by a predetermined amount in the lens base 13 side direction.

  The groove portion 15c is substantially L-shaped, and is formed along the inner periphery of the lens frame 15 from the vicinity of the first groove cut from the opening side of the lens frame 15 and the vicinity of the lens base 13 side of the first groove. A second groove is drilled. And the groove part 15c has the fitting hole 15c1 in the surface at the side of the lens base 13 near the cutting tip of the second groove.

  Although not shown in FIG. 10, the lens frame 15 has a groove portion (second groove portion) similar to the groove portion 15c and the fitting hole 15c1 at a position generally facing the groove portion 15c and the fitting hole 15c1 on the inner periphery. And a fitting hole (second fitting hole).

  As shown in FIG. 10, the color rendering filter 14 has finger hook portions 14 a to 14 b on the III-III line corresponding to one of the diameters. For example, the color rendering filter 14 has a convex portion 14b1 having a predetermined length extending in the C direction shown in FIG. 10 from the vicinity of the standing portion of the finger hanging portion 14b on the outer periphery of the color rendering filter 14 in the vicinity of the finger hanging portion 14b. And the convex part 14b1 has the protrusion part 14b2 which protrudes in the surface side direction opposite to the surface in which the finger hook part 14b of the color rendering filter 14 is provided in the front-end | tip part of C direction.

  As schematically shown in FIG. 11 in a cross-section along the line III-III shown in FIG. 10, the color rendering filter 14 is located generally on the outer periphery so as to face the finger hook portion 14b, the convex portion 14b1, and the protrusion portion 14b2. Furthermore, it has the finger hook part 14a, the convex part 14a1, and the projection part 14a2. The finger hook part 14a, the convex part 14a1, and the protrusion part 14a2 have the same shape as the finger hook part 14b, the convex part 14b1 and the protrusion part 14b2. The D direction shown in FIGS. 10 and 11 indicates the same direction.

  The color rendering filter 14 is attached to the lens frame 15 as follows. That is, the operator holds the finger hooks 14a to 14b, the convex portion 14a1 to the first groove of the groove portion 15c, and the convex portion 14b1 to the first groove of the second groove portion to the deepest. Fit. Since the lens frame 15 has a structure in which the diameter of the inner periphery decreases from the opening on the side where the color rendering filter 14 is attached toward the lens base 13, the operator can form the convex portion 14 a 1 in the first groove portion 15 c. The convex portion 14b1 can be easily fitted into the first groove of the second groove portion described above.

  Then, the operator inserts the convex portion 14a1 into the first groove of the groove portion 15c and the convex portion 14b1 into the first groove of the second groove portion, respectively, from the state where the operator engages the finger hook portions 14a to 14a to 14d. While holding 14b, the color rendering filter 14 is rotated in the direction C shown in FIG.

  Then, the color rendering filter 14 rotates, the tip of the convex portion 14a1 in the rotational direction is at the end of the second groove of the groove 15c, and the tip of the convex portion 14b1 in the rotational direction is the second groove of the second groove portion described above. Abuts against the end of At this time, in the color rendering filter 14, the projection 14a2 is fitted into the fitting hole 15c1, and the projection 14b2 is fitted into the second fitting hole. In this way, the color rendering filter 14 is attached to the lens frame 15. The operator can rotate the lamp body 10 by holding the finger hook portions 14 a to 14 b of the color rendering filter 14 attached to the lens frame 15.

  As described above, the manner of mounting and the schematic configuration of the color rendering filter 14 have been described. However, the mounting mode and the schematic configuration described above can be applied not only to the color rendering filter 14 but also to general members attached to the lens frame 15.

(Electrical cable wiring)
FIG. 12A is a perspective view illustrating a manner of wiring an electric cable in the lighting apparatus according to the embodiment. Moreover, FIG. 12B is a top view which shows the aspect of the wiring of the electric cable in the illuminating device concerning embodiment.

  The lamp body 10 of the lighting device 1 has an electric cable 16 for supplying power to a built-in substrate 12 (see FIG. 2). As shown in FIG. 2 etc., the shape of the radiation fin 11 which the lamp body 10 has is a substantially triangle. For this reason, one of the two hypotenuses of the substantially triangular shape of the radiation fin 11 is caused by the rotation of the lamp body 10 about the II-II line (see FIGS. 2, 3, 12A, and 12B). Part of the decorative frame 30 may be exposed from the lower side. In the illuminating device 1, when the electric cable 16 is routed around the portion of the radiation fin 11 exposed by the rotation, the electric cable 16 is exposed from below by the rotation.

  Therefore, the lighting device 1 is provided with an insertion hole 11b through which the electric cable 16 is inserted into the portion of the radiation fin 11 that is not exposed even by rotation, and the electric cable 16 is connected to the built-in substrate 12. 12A and 12B show two insertion holes 11b, the number of insertion holes 11b is not limited to two. The lighting device 1 prevents the electric cable 16 from being exposed from below by connecting the electric cable 16 to the substrate 12 via the insertion hole 11b, and prevents a decrease in aesthetic appearance. Alternatively, the lighting device 1 can protect the electric cable 16.

  Or as shown to FIG. 12A and FIG. 12B, you may provide the through-hole 11b in the area | region where an area is narrow among two areas | regions of the radiation fin 11 divided | segmented by the II-II line seeing from perpendicular | vertical upper direction. That is, by providing the insertion hole 11b on the R direction side shown in FIG. 12B, it is possible to prevent the electric cable 16 from being exposed from below, to prevent a decrease in aesthetics, and to protect the electric cable 16. Increase more.

(Effect of embodiment)
As described above, according to the embodiment, with respect to the horizontal rotation angle of the lamp body, while providing a rotation restriction for preventing twisting of the power line from the viewpoint of simplifying the structure and minimizing the number of parts, With a simple configuration, it is possible to rotate 360 ° or more. Alternatively, according to the embodiment, it is possible to reduce the frictional resistance and increase the operability of the rotation without increasing the number of parts for the horizontal rotation of the lamp body.

  Alternatively, according to the embodiment, even if the light irradiation direction of the lamp body is changed, the electric cable is not exposed below the ceiling, so that it is possible to prevent the appearance from being deteriorated and to protect the electric cable. Alternatively, according to the embodiment, it is possible to easily attach an instrument such as a filter attached to the light irradiation surface side of the lamp body, and to improve the operability of the movable operation and horizontal rotation of the instrument after the attachment. .

  In the above embodiment, the plurality of convex portions 35 are positioned on the upper end surface of the side peripheral surface 32 of the decorative frame 30 at a predetermined interval. However, the present invention is not limited thereto, and the plurality of convex portions 35 may be provided on the side of the annular convex portion 22 of the rotating drum 20 that is in contact with the upper end surface of the side peripheral surface 32 of the decorative frame 30. Can be smoothly rotated with respect to the decorative frame 30.

  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 1 Illuminating device 10 Lamp body 11 Radiation fin 11b Insertion hole 14 Color rendering filters 14a and 14b Finger hook parts 14a1 and 14b1 Projection parts 14a2 and 14b2 Projection part 15 Lens frame 15c Groove part 15c1 Fitting hole 16 Electrical cable 20 Rotating trunk 21 Projection part 22 annular convex part 30 decorative frame 31 flange 32 side peripheral surface 33 fitting groove part 33a fitting groove 33b fitting support part 35 convex part 40 rotation restricting part 41 leg part 41a, 41b contact part 42 base part 42a base surface 42b, 42c convex Part 42d Convex part 42e, 42f Contact part 43 First step part 44 Second step part 44a Holding plate 45 Third step part 45a, 45b Contact part

Claims (3)

A lamp body on which a light emitting element is mounted and a rotating drum having a convex portion is mounted;
A rotating frame in which the rotating cylinder is fitted so as to be capable of a first rotation;
A rotation restricting portion that is inserted into an insertion groove portion provided in the rotation frame, slides in the insertion groove portion, and contacts the convex portion to restrict the first rotation;
A lighting device comprising: The rotation restricting portion is
A leg portion that is inserted into the insertion groove portion and slides in the insertion groove portion;
A pedestal for supporting the rotating drum in contact with an annular projection provided annularly on the outer periphery of the rotating drum;
A holding portion that holds the support of the annular convex portion by the pedestal portion;
An abutting portion that abuts against the convex portion and restricts the first rotation;
The illumination device according to claim 1, further comprising: The lamp is
The light-emitting element is mounted inside the lamp body by the second rotation with respect to the rotation cylinder centering on the rotation center line having a twisted positional relationship with the rotation center line of the first rotation. An insertion portion for inserting the cable between the inside and the outside of the lamp body at a position where the cable connected to the substrate to be formed is not exposed to the illumination direction side by the light emitting element;
The illumination device according to claim 1, further comprising:

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