JP6150204B2 - lighting equipment - Google Patents

Description

  The present invention relates to a lighting fixture.

  Conventionally, as shown in FIG. 9, there has been provided a lighting fixture including a fixture body 2 having a storage recess 20 in which a light emitting diode 10 is stored (see, for example, Patent Document 1). Hereinafter, the vertical direction is based on FIG. That is, the direction in which the housing recess 20 is opened is referred to as the downward direction.

  The light source block 1 formed by mounting the light emitting diode 10 on the substrate 11 is fixed to the inner bottom surface of the housing recess 20 by, for example, screwing. The light emitting diode 10 is lit by electric power supplied from the outside via the cable 3.

  In addition, a reflecting plate 41 having a cylindrical reflecting portion 411 whose inner diameter increases downward is housed and fixed in the housing recess 20 so as to surround the light emitting diode 10 by the reflecting portion 411. The reflection plate 41 has a frame portion 412 that surrounds the reflection portion 411, and the frame portion 412 is positioned with respect to the instrument body 2 by contacting the inner peripheral surface of the storage recess 20. The inner peripheral surface of the reflecting portion 411 is white or mirrored, and distributes light from the light emitting diode 10 downward.

  Furthermore, the above-described lighting fixture includes a disc-shaped translucent panel 42 that is made of a translucent material and closes the housing recess 20. Light from the light emitting diode 10 is emitted downward through the translucent panel 42. The translucent panel 42 is prevented from falling off the housing recess 20 by an annular presser plate 43 that is screwed and fixed around the opening of the housing recess 20 together with the reflector 41 by three screws 82.

  Further, as shown in FIGS. 10 and 11, heat radiation fins 21 project from the upper surface of the instrument body 2 (that is, the outer bottom surface of the housing recess 20). Between the radiation fins 21, a cable storage chamber 210 is formed that opens upward and stores a part of the cable 3. The cable 3 is introduced from the cable storage chamber 210 into the storage recess 20 through a cable insertion portion (not shown) formed of a through hole opened in the inner bottom surface of the storage recess 20 and the inner bottom surface of the cable storage chamber 210. Furthermore, after the cable 3 is wound around the winding projection 211 protruding from the inner bottom surface of the cable storage chamber 210, the cable 3 passes through the insertion notch 212 provided on the one side wall of the cable storage chamber 210. It is pulled out to the side of the storage chamber 210. The lighting fixture includes a tension stopper 5 that is screwed to the winding convex portion 211 to cover the cable housing chamber 210 as viewed from above and sandwich the cable 3 between the inner surface of the insertion notch 212.

JP 2012-48996 A

  In the above lighting fixture, at the time of assembly, first, after fixing the light source block 1 to the fixture body 2 with the opening of the housing recess 20 of the fixture body 2 facing upward, the cable 3 is inserted through the cable insertion portion, The reflector 41, the translucent panel 42, and the presser plate 43 are fixed to the instrument body 2. Thereafter, with the instrument body 2 turned upside down and the opening of the storage recess 20 facing downward, the cable 3 is wound around the winding convex portion 211 and the cable 3 is pulled out through the insertion notch 212 and the tension is stopped. 5 is attached.

  That is, in the above-mentioned lighting fixture, it is necessary to turn the fixture body 2 upside down at least once during assembly, and the assemblability is relatively low.

  This invention is made | formed in view of the said reason, The objective is to provide the lighting fixture with which the assembly property was improved.

The lighting fixture of the present invention is coupled to a fixture main body having a housing recess for storing an electrical light source, a cable insertion portion through which a cable electrically connected to the light source is inserted, and the fixture main body. A tension stopper that sandwiches the cable between the instrument body and a translucent panel that is made of a light-transmitting material and covers the opening of the storage recess by being coupled to the instrument body, and the cable insertion part is wherein provided on the opening edge of the accommodating recess Ri Do from the groove for communication between the interior and the exterior of the housing recess, the anchorage, the panel nip sandwiching the light-transmitting panel between the instrument body is integrally provided with It is characterized by.

  According to the present invention, the introduction of the cable into the cable insertion portion and the attachment of the tension stopper to the instrument body can be performed from the same direction as the direction in which the light source is housed in the housing recess. Thereby, the assemblability is improved as compared with the case where the cable insertion portion is a through hole opened in the inner bottom surface of the housing recess, for example.

(A)-(c) each shows the principal part of embodiment of this invention, (a) is a disassembled perspective view, (b) is a perspective view which shows the state from which the tension | tensile_strength was isolate | separated, (c) is a perspective view. It is. It is a top view which shows the same as the above. It is sectional drawing in the AA cross section of FIG. 2 which shows the same as the above. It is a perspective view which shows the same as the above. It is a disassembled perspective view which shows the same as the above. (A)-(c) shows the instrument main body same as the above, respectively, (a) is a front view, (b) is a bottom view, (c) is a left view. It is a perspective view which shows the instrument main body same as the above. It is the perspective view seen from the direction different from FIG. 7 which shows the instrument main body same as the above. It is a disassembled perspective view which shows the conventional lighting fixture. It is a perspective view which shows the state from which the tension | tensile_strength stopper was removed in the same as the above. It is a perspective view which shows the same as the above.

  The lighting fixture of the present invention includes a housing recess 20 in which an electrical light source (light emitting diode 10) is housed, and a cable insertion portion 22 through which the cable 3 electrically connected to the light source (light emitting diode 10) is inserted. An instrument body 2 is provided. In addition, the lighting fixture of the present invention includes a tension stopper 5 that is coupled to the fixture body 2 and sandwiches the cable 3 with the fixture body 2, and the cable insertion portion 22 is provided at the opening edge of the storage recess 20 and stored. It consists of the groove | channel which connects the inside and outside of the recessed part 20, It is characterized by the above-mentioned.

  The lighting fixture includes a transparent panel 42 made of a light-transmitting material and coupled to the fixture main body 2 to cover the opening of the housing recess 20, and the tension stopper 5 is transparent to the fixture main body 2. It is preferable that a panel sandwiching portion (first piece 51) sandwiching the panel 42 is provided integrally.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

  This embodiment is provided with the instrument main body 2 which has the accommodation recessed part 20 in which the light emitting diode 10 as an electrical light source is accommodated, as shown in FIGS. Hereinafter, the vertical direction will be described with reference to FIG. That is, the direction in which the housing recess 20 is opened is referred to as the downward direction.

  The instrument body 2 has a heat radiation fin 21 projecting from the outer bottom surface of the storage recess 20 to the side, but the bottom of the device body 2 has a bottomed cylindrical shape except for the heat radiation fin 21.

  The light-emitting diode 10 constitutes the light source block 1 together with a substrate 11 on which the light-emitting diode 10 is mounted and a reflection frame 12 that is ring-shaped and is coupled to the substrate 11 so as to surround the light-emitting diode 10. The inner peripheral surface of the reflection frame 12 is inclined so as to increase its inner diameter downward, and is mirror-like or white so as to reflect the light of the light emitting diode 10, thereby lowering the light of the light emitting diode 10 downward. Light distribution. The light source block 1 is fixed to the inner bottom surface of the housing recess 20 by, for example, screwing. The two electric wires 31 electrically connected to the light emitting diode 10 through the substrate 11 are bundled to form the cable 3.

  In addition, a reflection plate 41 having a cylindrical reflection portion 411 whose inner diameter increases downward is surrounded by the reflection portion 411 on the lower side of the light source block 1 in the housing recess 20 and surrounds the optical axis of the light emitting diode 10. Stored and fixed in shape. The inner peripheral surface of the reflecting portion 411 is white or mirrored, and distributes light from the light emitting diode 10 downward. Further, the reflection plate 41 has an annular frame portion 412 that surrounds the reflection portion 411, and the inner peripheral surface of the storage recess 20 is located above the frame portion 412 of the reflection plate 41 as shown in FIGS. 6 to 8. A plurality of support convex portions 201 that come into contact with each other are projected. The reflection plate 41 is prohibited from being displaced upward by the support convex portion 201, and is orthogonal to the vertical direction by the frame portion 412 contacting the inner peripheral surface of the storage concave portion 20 below the support convex portion 201. Displacement in the direction is prohibited.

  Furthermore, the above-described lighting fixture includes a translucent panel 42 that is made of a translucent material and closes the housing recess 20. Light from the light emitting diode 10 is emitted downward through the translucent panel 42. The translucent panel 42 includes a window portion 421 that covers the reflecting portion 411 of the reflecting plate 41 when viewed from below, and an annular frame portion 422 that surrounds the window portion 421. The window part 421 bulges slightly below the frame part 422. Further, a support step 202 is provided on the inner peripheral surface of the housing recess 20 so that the lower inner diameter is larger than the upper inner diameter. Displacement upward with respect to 2 is prohibited. The translucent panel 42 includes two engaging pieces 423 and one screwing piece 424 that protrude outward in the radial direction from the frame portion 422. The two engaging pieces 423 and the one screwing piece 424 are arranged at substantially equal intervals (that is, about every 120 °) in the circumferential direction of the frame portion 422. In addition, on the inner peripheral surface of the storage recess 20, there are two introduction recesses 203 that are opened downward to introduce the engaging pieces 423 on the lower side of the support step 202, and screwed pieces 424 that are opened downward. And a screwing recess 204 into which is introduced. Further, each engagement piece 423 has an L-shape that protrudes counterclockwise when viewed from the lower end. In addition, an engagement recess 205 (see FIG. 7) into which the distal end portion of the engagement piece 423 can be engaged is provided on the wall in the counterclockwise direction when viewed from below in each introduction recess 203. That is, when the translucent panel 42 is attached to the instrument main body 2, each engaging piece 423 is introduced into the introduction recess 203, and then the translucent panel 42 is viewed counterclockwise with respect to the instrument main body 2. Rotate to Then, the distal end portion of each engagement piece 423 is engaged with the engagement recess 205, thereby preventing the translucent panel 42 from dropping downward from the instrument body 2.

  In addition, the instrument body 2 has a cable insertion portion 22 formed of a groove that is provided on the opening edge of the storage recess 20 (that is, the lower surface of the instrument body 2) and communicates the inside and the outside of the storage recess 20. The cable insertion part 22 has a first groove 221 that is open to the inside and outside in the radial direction of the instrument body 2 and a lower part, and a lower end that communicates with the first groove 221 and extends upward on the outer peripheral surface of the instrument body 2. A second groove 222. Further, a guide convex portion 23 that guides the cable 3 is projected from the outer peripheral surface of the instrument body 2. A groove 231 having one end communicating with the upper end of the second groove 222 and the other end opened outward in the radial direction of the instrument body 2 is provided on the lower surface of the guide convex portion 23.

  Further, the present embodiment includes a tension stopper 5 that is coupled to the instrument body 2 and sandwiches the cable 3 with the instrument body 2. For example, the tension stopper 5 is formed by bending and punching a metal plate. The tension stopper 5 covers the screw insertion recess 204 and the cable insertion portion 22 when viewed from below, the cable insertion portion 22 as viewed from the outside in the radial direction of the instrument body 2, and the guide protrusion 23. And a second piece 52 sandwiching the cable 3 therebetween. In the instrument main body 2, a screw hole 206 is provided in the screwing recess 204, and the tension stopper 5 is inserted into a screw insertion hole 510 (see FIG. 5) provided in the first piece 51 and the above screw hole. It is fixed to the instrument body 2 by screws 81 that are screwed onto 206. Further, the screwing piece 424 of the translucent panel 42 has a notch 425 through which the screw 81 is inserted. The translucent panel 42 is rotated with respect to the instrument body 2 and in a direction to release the engagement of the engagement piece 423 with respect to the engagement recess 205 by sandwiching the screw 81 on the inner surface of the notch 425. It is forbidden. That is, the translucent panel 42 is fixed together with the fixing of the tension stopper 5 to the instrument body 2. The first piece 51 is a panel sandwiching part that sandwiches the translucent panel 42 between the instrument main body 2 and the first piece 51. As a result, the assemblability is improved as compared to the case where separate screws 81 and 82 are required to fix the tension stopper 5 and the translucent panel 42 as in the conventional examples of FIGS.

  In addition, holding grooves 232 are provided on the inner surfaces of the grooves 231 of the guide convex portion 23 facing each other. The second piece 52 of the tension stopper 5 is positioned with respect to the instrument main body 2 by storing both ends of the upper end in the width direction (direction directed in the circumferential direction of the instrument main body 2) in the holding grooves 232, respectively. The Further, the tension stopper 5 has an effect of tension stopper by sandwiching the cable 3 between the upper end of the second piece 52 and the bottom surface of the groove 231 of the guide protrusion 23.

  Furthermore, this embodiment is embedded in a mounting hole (not shown) provided in the ceiling material. The present embodiment includes a frame body 6 that has a flange portion 61 that contacts the lower surface of the ceiling material around the embedding hole and is coupled to the lower side of the instrument body 2, and a flange portion 61 of the frame body 6. And three attachment springs 7 sandwiching the ceiling material therebetween. More specifically, the frame 6 has a cylindrical outer cylinder portion 62 whose axial direction is directed vertically as a whole, and a lower end portion connected to the inner peripheral surface of the outer cylinder portion 62, and an inner diameter and an outer diameter upward. And a reflecting portion 63 that is inclined so as to be small. The reflection part 63 surrounds the window part 421 of the translucent panel 42 at the upper end part. Moreover, the inner peripheral surface of the reflection part 63 is made into a mirror surface or white, and distributes the light of the light emitting diode 10 emitted through the translucent panel 42 downward. The flange portion 61 protrudes radially outward over the entire circumference of the lower end of the outer tube portion 62. Further, the mounting springs 7 are fixed to the outer peripheral surface of the outer cylinder part 62 and are arranged at substantially equal intervals in the circumferential direction of the outer cylinder part 62. As means for fixing each attachment spring 7 to the frame body 6, known means such as fitting, uneven engagement, and screwing can be used as appropriate.

  According to the above configuration, the introduction of the cable 3 into the cable insertion portion 22 and the attachment of the tension stopper 5 to the instrument body 2 are the same as the directions in which the light emitting diodes 10 are stored in the storage recesses 20 (in the description above). Can be done from the bottom in the definition). That is, the fixing of the light source block 1 and the like to the instrument body 2, the introduction of the cable 3 into the cable insertion portion 22, and the attachment of the tension stopper 5 to the instrument body 2 are all performed in the opening of the storage recess 20 of the instrument body 2. It can be performed from above in a state of facing upward. Thereby, for example, as compared with the case where the cable insertion portion 22 is a through hole opened in the inner bottom surface of the housing recess 20 as in the conventional examples of FIGS.

  Further, the area of the cable 3 that is routed on the outer surface of the instrument body 2 (the cable insertion portion 22 and the guide convex portion 23) is smaller than that of the example (cable storage chamber 210) of FIGS. The heat dissipation can be improved by increasing the number of heat dissipating fins 21.

2 Device body 3 Cable 5 Tension stopper 10 Light emitting diode (light source)
20 Storage recess 22 Cable insertion part 42 Translucent panel 51 1st piece (panel clamping part)

Claims (1)

An instrument body having a storage recess for storing an electrical light source, and a cable insertion portion through which a cable electrically connected to the light source is inserted,
A tension stopper coupled to the instrument body and sandwiching the cable with the instrument body ;
A translucent panel made of a material having translucency and coupled to the instrument body to cover the opening of the storage recess ;
The cable insertion portion is Ri Do from the groove for communication between the interior and the exterior of the housing recess provided in the opening edge of the housing recess,
The lighting fixture , wherein the tension stopper is integrally provided with a panel sandwiching portion for sandwiching the translucent panel with the fixture main body .

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