JP5520107B2 - lighting equipment - Google Patents

Description

  The present invention relates to a lighting fixture.

  Conventionally, a ceiling embedding comprising a lamp body that is embedded in an embedding hole formed in a ceiling material and holds an electric light source, and a lighting device that lights the light source held by the lamp body A type of luminaire is provided. The ceiling material is arranged so that a gap (hereinafter referred to as “wiring space”) in which the power line and the communication line are arranged is formed between the construction material such as concrete, The lighting device is disposed in the wiring space. In said lighting fixture, the appearance seen from the lower side of the ceiling material is improved compared with the case where a lighting device is arrange | positioned under the ceiling material. Furthermore, when the lighting device is arranged in a direction along the ceiling surface (the lower surface of the ceiling material) with respect to the lamp body, the wiring space is smaller than when the lighting device is mounted on the upper side of the lamp body. Even if it is narrower (that is, the distance between the ceiling material and the building material is smaller), the arrangement is possible.

  Further, in the above-described ceiling-embedded lighting fixture in which the lighting device is arranged in a direction along the ceiling surface (the lower surface of the ceiling material) with respect to the lamp body, the lamp is lit within the plane intersecting the ceiling surface. There is one in which a lighting device is connected to a lamp body so as to be rotatable with respect to the body (for example, see Patent Document 1). That is, when performing the work of introducing the lighting device and the lamp body into the embedding hole, the above work is compared by rotating the lighting device so as to be displaced upward with respect to the lamp body. Easily.

Japanese Patent Laid-Open No. 5-28818

  However, in the lighting fixture in which the lighting device is rotatably connected to the lamp as described above, if the rotation range of the lighting device with respect to the lamp is excessively large, an electric wire that connects the lighting device and the lamp body at the time of installation. Breakage due to excessive bending, and breakage due to excessive movement of the lighting device with respect to the lamp body.

  This invention is made | formed in view of the said reason, The objective is to provide the lighting fixture which is hard to generate | occur | produce a disconnection and a failure | damage at the time of arrangement | positioning.

  The first invention is a lamp body that is embedded and disposed in a manner that at least a part projects above the ceiling material in an embedded hole penetrating the ceiling material, and holds an electrical light source, A lighting device that turns on the light source, a first fixing portion that is fixed to a portion of the lamp body that is located above the ceiling material, and a protruding portion that protrudes in a direction along the ceiling surface than the lamp body. A mounting plate; and a second mounting plate that is rotatably connected to the protruding portion of the first mounting plate in a plane intersecting the ceiling surface and holds the lighting device. Is in contact with the protruding portion of the first mounting plate, so that the rotation range of the second mounting plate with respect to the first mounting plate can be reduced, so that at least a part of the lighting device is on the ceiling surface with respect to the lamp body. There is a limiting part that limits the range to be located in the direction along And said that you are.

  According to a second invention, in the first invention, a rotation range of the second mounting plate with respect to the first mounting plate and a rotation range in a direction in which the lighting device is displaced downward is defined with respect to the first mounting plate. The second mounting plate is provided with a limiting portion that is restricted by contacting the protrusion of the first mounting plate from above at a position farther from the lamp body than the rotation axis of the second mounting plate. It is characterized by that.

  According to a third invention, in the first invention or the second invention, the rotation range of the second mounting plate relative to the first mounting plate in the direction in which the lighting device is displaced upward, A limiting portion that restricts by contacting the protruding portion of the first mounting plate from below at a position farther from the lamp body than the rotation axis of the second mounting plate with respect to the first mounting plate is the second mounting plate. It is provided in.

  According to the present invention, disconnection and breakage are less likely to occur at the time of disposition than when the rotation range of the second mounting plate relative to the first mounting plate is not limited.

It is explanatory drawing which shows embodiment of this invention. It is explanatory drawing which shows the method of arrange | positioning the same. It is a perspective view which shows the same as the above. It is a top view which shows the same as the above.

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

  In this embodiment, as shown in FIGS. 1 to 4, a lamp body 1 that is embedded in an embedded hole CE <b> 1 penetrating the ceiling material CE and holds an electrical light source LA, and a lamp body And a lighting device 2 that turns on the light source LA held by 1. 1 and 2 are partially omitted from the illustration of the internal structure based on the cross-sectional view taken along the line AA of FIG.

  The ceiling material CE is a plate-like member disposed so that the wiring space CS is formed between the construction material CO such as concrete, and the lamp body 1 has an upper end above the ceiling material CE, that is, a wiring space. It is arranged so as to protrude into the CS.

  For example, a light emitting diode can be used as the light source LA held by the lamp body 1, and in this case, the lighting device 2 can include a known DC power supply circuit in an appropriate case 21. As the light source LA, another known electrical light source may be used. In any case, the lighting device 2 can be realized by a known technique, and thus detailed illustration and description thereof are omitted.

  Hereinafter, in the description of the structure, the top, bottom, left, and right are based on FIG. 1, and the direction (vertical direction in FIG. 4) perpendicular to the paper surface of FIG. That is, the description is based on the direction in which the lower surface (ceiling surface) CE2 is disposed with respect to the horizontal ceiling material CE.

  The lamp body 1 as a whole has a cylindrical shape with the axial direction directed in the vertical direction, and protrudes horizontally outward from the lower end of the main body 11 over the entire circumference from the lower end of the main body 11. And an annular flange 12 provided.

  In addition, a parabolic light distribution recess 10 is opened on the lower surface of the main body portion 11 of the lamp body 1 so that the central axis is directed in the vertical direction and the inner diameter is increased downward. Furthermore, the lamp body 1 holds a panel 13 made of a material that allows light from the light source LA to be exposed at the bottom of the light distribution recess 10, and the light source LA emits light downward through the panel 13. The lamp 1 is held in the direction. Furthermore, the inner peripheral surface of the light distribution recess 10 totally reflects or irregularly reflects the light from the light source LA. Total reflection and irregular reflection as described above can be realized by applying a treatment such as painting, plating, or polishing to the inner peripheral surface of the light distribution recess 10 as necessary.

  Further, on the outer peripheral surface of the main body portion 11 of the lamp body 1, three attachment springs 3 each made of a leaf spring are held at substantially equal intervals in the circumferential direction. Each mounting spring 3 is fixed to the outer peripheral surface of the main body 11 of the lamp body 1 with one surface in the thickness direction fixed by, for example, fitting, and the opposite of the lamp body 1 in the fixing section 31. A pinching portion 32 projecting from the lower end of one surface directed to the side, and a hooking portion 33 projecting from the tip of the pinching portion 32 to one side in the thickness direction of the pinching portion 32. The sandwiching portion 32 has the thickness direction substantially vertical when the attachment spring 3 is elastically restored, and is elastically deformed so that the hook portion 33 is located above the fixed portion 31 as indicated by a broken line in FIG. To a state in which the thickness direction is directed in the radial direction of the main body 11 of the lamp body 1 (hereinafter referred to as “standing state”). When the sandwiching portion 32 is in the above-mentioned standing state, the protruding direction of the hooking portion 33 from the sandwiching portion 32 is outward in the radial direction of the main body portion 11 of the lamp body 1. That is, when the present embodiment is arranged, the lamp body 1 is attached to the ceiling material CE by hooking the hook portions 33 of the respective mounting springs 3 on the ceiling material CE around the upper opening of the embedding hole CE1. It can be temporarily held. Further, when the lamp body 1 is displaced upward from the state in which the lamp body 1 is temporarily held as described above, each of the attachment springs 3 is elastically restored to some extent. Here, the ceiling member CE is elastically sandwiched between the flange portion 12 of the lamp body 1 and the sandwiching portion 32 of the mounting spring 3, and the vertical displacement of the lamp body 1 with respect to the ceiling member CE is prohibited.

  In addition, in the present embodiment, a fixing portion 41 fixed to the upper surface, which is a portion located above the ceiling material CE in the main body portion 11 of the lamp body 1, and a direction along the ceiling surface CE2 from the lamp body 1 ( A first mounting plate 4 having a protruding portion 42 protruding in the right direction in FIG. 1 is provided. Further, the second mounting plate 5 holding the lighting device 2 is connected to the projecting portion 42 of the first mounting plate 4 so as to be rotatable in a plane intersecting the ceiling surface CE2 (in the plane of FIG. 1). .

  More specifically, the first mounting plate 4 and the second mounting plate 5 are formed by punching and bending metal plates, respectively. In addition to the lighting device 2, a terminal block 6 is held on the second mounting plate 5. The terminal block 6 is housed in a housing 61 made of an insulating material such as a synthetic resin, in which a plurality of wire insertion holes 61a (see FIG. 3) are opened, and inside each one of the wire insertion holes 61a. And a plurality of well-known quick connection terminals (not shown) held therein. Each fast connection terminal is electrically connected to at least one other fast connection terminal in the housing 61. That is, a plurality of electric wires (not shown) each having one end inserted into the electric wire insertion hole 61a and the other end connected to one of the light source LA and the lighting device 2, and the above-described quick connection terminal Thus, electrical connection between the light source LA and the lighting device 2 is achieved.

  The fixing portion 41 of the first mounting plate 4 is screwed and fixed to the upper surface of the main body portion 11 of the lamp body 1 with the thickness direction directed in the vertical direction. Further, the protruding portion 42 of the first mounting plate 4 further includes a base piece 42a extending rightward from the fixing portion 41, a connecting piece 42b protruding downward from both front and rear ends of the base piece 42a, and a base And an extension piece 42c extending rightward and downward from the piece 42a.

  The second mounting plate 5 includes a lighting device holding portion 51 in which the lighting device 2 is fixed on one surface directed downward, a terminal block holding portion 52 in which the terminal block 6 is fixed on one surface directed downward, and a terminal block holding And a connecting portion 53 that protrudes downward from both front and rear ends of the left end portion of the portion 52 and extends to the left of the terminal block holding portion 52. For fixing the lighting device 2 to the lighting device holding unit 51 and fixing the terminal block 6 of the terminal block holding unit 52, well-known means such as screwing and uneven engagement can be used as appropriate. In addition, the space between the terminal block holding part 52 and the lighting device holding part 51 is bent by about 30 ° in the upward convex direction. Thereby, compared with the case where the said part is not bent and the terminal block holding | maintenance part 52 and the lighting device holding | maintenance part 51 become planar shape as a whole, as shown in FIG. The minimum wiring space CS required for introduction to the upper side of the ceiling material CE is small (that is, the conditions necessary for the arrangement are loose).

  Here, each coupling piece 42b of the first mounting plate 4 and each coupling portion 53 of the second mounting plate 5 are provided with circular bearing holes (not shown) that are coaxial with each other. And each connection part 42b of the 1st attachment plate 4 is pinched | interposed between the connection parts 53 of the 2nd attachment plate 5, and said connection part 53 of the 2nd attachment plate 5 is made to mutually communicate. The screw SC1 is inserted together with the one connecting piece 42b of the first mounting plate 4 respectively. As a result, the second mounting plate 5 is rotatable within a plane as shown in FIG. 1 which is a surface intersecting the ceiling surface CE2 with respect to the first mounting plate 4 with the central axis of each screw SC1 as a rotation axis. It has become. For example, each of the screws SC1 is dropped when the screw SC1 is screwed together and the connecting piece 42b of the first mounting plate 4 and the connecting portion 53 of the second mounting plate 5 are sandwiched between the head of the screw SC1. (Not shown). Further, the entire extension piece 42c of the first mounting plate 4 is a portion that is further away from the lamp body 1 than the above-described rotating shaft.

  Here, the rotation range of the second mounting plate 5 with respect to the first mounting plate 4 and in the direction in which the lighting device 2 is displaced downward (that is, the clockwise direction in FIG. 1) is indicated by a broken line in FIG. As shown, the left end of the terminal block holding portion 52 as the limiting portion of the second mounting plate 5 is in contact with the extension piece 42c of the protruding portion 42 of the first mounting plate 4 from above (hereinafter referred to as “lower limit position”). It is limited by. The left end portion of the terminal block holding portion 52 of the second mounting plate 5 is bent upward so that the surface of the second mounting plate 5 that contacts the first mounting plate 4 is curved as described above. In the above lower limit position, the lighting device 2 is located on the right side of the lamp body 1.

  Further, at the lower end portion of each connecting portion 53 of the second mounting plate 5, a restriction protrusion is provided at a portion closer to the terminal block holding portion 52 than the above-described rotation shaft and closer to the above-described rotation shaft than the extension piece 42 c. The part 54 protrudes inward in the front-rear direction. The rotation range of the second mounting plate 5 relative to the first mounting plate 4 and in the direction in which the lighting device 2 is displaced upward (that is, the counterclockwise direction in FIG. 1) is the second mounting plate 5. The restricting convex portion 54 is restricted to a position (hereinafter referred to as an “upper limit position”) where the restricting convex portion 54 comes into contact with the extended piece 42c of the protruding portion 42 of the first mounting plate 4 from below. Even in the above upper limit position, the lighting device 2 is located on the right side of the lamp body 1. That is, the lighting device 2 is located on the right side of the lamp body 1 (that is, the direction along the ceiling surface CE2) over the entire rotation range (movable range) of the second mounting plate 5 with respect to the first mounting plate 4.

  According to the said structure, compared with the case where the rotation range of the 2nd attachment plate 5 with respect to the 1st attachment plate 4 is not restrict | limited, the lighting device 2 moves excessively with respect to the lamp body 1, and is damaged by momentum. In addition, disconnection of the electric wires connecting the lighting device 2, the terminal block 6, and the lamp body 1 to each other is less likely to occur during the installation.

  By the way, in this embodiment, the clockwise rotation range is limited by the extension piece 42c provided at the tip portion of the first mounting plate 4, but the structure that limits the counterclockwise rotation range (restriction convex portion 54). Similarly to the above, it is possible to provide a restricting portion for restricting the clockwise rotation range in the connecting portion 53 of the second mounting plate 5. However, when such a structure is adopted, two types of limiting portions are provided in the connecting portion 53 of the second mounting plate 5, so that the width (vertical height) of the connecting portion 53 may be increased. There is sex. When the width of the connecting portion 53 of the second mounting plate 5 is increased, the upper peripheral edge of the embedding hole CE1 in the ceiling material CE interferes with the connecting portion 53, and work for inserting the lamp body 1 into the embedding hole CE1. There is a risk that the performance will deteriorate. On the other hand, in the present embodiment, the restricting portion (terminal block holding portion 52) that restricts the clockwise rotation range is provided at a site different from the connecting portion 53 of the second mounting plate 5, and thus the connecting portion 53 It is possible to improve the workability by suppressing the increase in the width dimension.

DESCRIPTION OF SYMBOLS 1 Lamp body 2 Lighting device 4 1st attachment plate 5 2nd attachment plate 41 Fixing part 42 Protrusion part 52 Terminal block holding | maintenance part (restriction part)
54 Restriction convex part (restriction part)
CE Ceiling material CE1 Embedded hole CE2 Ceiling surface LA Light source

Claims (3)

A lamp body that is embedded and disposed in a form protruding at least partially above the ceiling material with respect to the embedded hole penetrating the ceiling material, and holding an electrical light source;
A lighting device for lighting the light source;
A first mounting plate having a fixed portion fixed to a portion located above the ceiling member in the lamp body and a protruding portion protruding in a direction along the ceiling surface from the lamp body;
A second mounting plate that is rotatably connected to the protruding portion of the first mounting plate in a plane intersecting the ceiling surface and holds the lighting device;
The second mounting plate is in contact with the projecting portion of the first mounting plate, so that the rotation range of the second mounting plate relative to the first mounting plate is set, and at least a part of the lighting device is the lamp body. A restricting portion is provided that restricts within a range that is positioned in a direction along the ceiling surface.   The rotation range of the second mounting plate relative to the first mounting plate in the direction in which the lighting device is displaced downward is set to be greater than the rotation axis of the second mounting plate relative to the first mounting plate. The lighting device according to claim 1, wherein a limiting portion is provided on the second mounting plate that is restricted by contacting the protruding portion of the first mounting plate from above at a position away from the body. .   The rotation range of the second mounting plate relative to the first mounting plate in the direction in which the lighting device is displaced upward is set to be greater than the rotation axis of the second mounting plate relative to the first mounting plate. The limiting part which restrict | limits by making it contact | abuts from the downward direction to the said protrusion part of the said 1st attachment board in the position away from the body is provided in the said 2nd attachment board. The luminaire described.

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