JP6811431B2 - lighting equipment - Google Patents

Description

The present invention relates to a luminaire, and more particularly to a luminaire having a light source unit and a fixture body that supports the light source unit.

As a conventional example, the lighting equipment described in Patent Document 1 will be illustrated. This conventional example includes a rectangular box-shaped fixture body having an open lower surface, a light source unit, and a frame that holds the light source unit and is attached to the fixture body. The frame is fixed to the light source unit so as to accommodate the light source unit inside. Further, the frame has a plurality of fixed springs. Each fixed spring is composed of a torsion coil spring having a coil portion and a pair of arm portions. A hook-shaped locking portion is provided at the tip of each arm.

The instrument body has a hole through which the arm of each fixed spring is inserted. The light source unit is attached to the fixture body by hooking a pair of arms provided by each fixing spring of the frame on the edge of the hole of the fixture body.

Japanese Unexamined Patent Publication No. 2014-232713

By the way, in the above-mentioned conventional example, when the light source unit is attached to the instrument body, the arms of each of the plurality of fixing springs project greatly above the top surface of the instrument body. For this reason, the above-mentioned conventional example has a problem that a space for releasing the arm portion of each fixed spring is required above the instrument main body, and it is difficult to improve the workability of the construction work.

An object of the present invention is to provide a lighting fixture that can easily improve the workability of construction work.

The lighting fixture according to one aspect of the present invention has a light source unit and a fixture main body that supports the light source unit. The light source unit includes a light source, a plate-shaped mounting member to which the light source is mounted, and a mounting spring. The mounting spring is composed of a torsion coil spring having a coil portion and an arm portion. The arm portion is formed in a U shape. The mounting spring is configured to support the coil portion and the end portion of the arm portion by the mounting member in a state where the arm portion protrudes from the mounting member. The instrument body is formed in a box shape having an opening on one surface, and has an accommodating portion into which a part of the light source unit including the mounting member is inserted through the opening and a hooking portion on which the mounting spring is hooked. Be prepared. The accommodating portion has a flat plate-shaped bottom wall facing the mounting member along the insertion direction of the light source unit, and a side wall rising from the peripheral edge of the bottom wall. The hook portion has a hole that penetrates the side wall in the thickness direction thereof, and is configured such that the arm portion of the mounting spring is hooked on the edge of the hole in the side wall. The light source unit is supported by the instrument body by the spring force of the mounting spring in a state where the arm portion is hooked on the hook portion.

The lighting fixture of the present invention has an effect that it is easy to improve the workability of construction work.

FIG. 1 is a perspective view of a lighting fixture according to an embodiment of the present invention. FIG. 2 is a side view of the same lighting fixture. FIG. 3 is another side view of the same luminaire. FIG. 4 is an exploded perspective view of the same lighting fixture. FIG. 5 is an exploded perspective view of the fixture body in the same lighting fixture. FIG. 6 is a cross-sectional view of a main part of the same lighting fixture. FIG. 7 is a front view of one of the pair of hooks in the same lighting fixture. FIG. 8 is a front view of the other hooking portion of the pair of hooking portions in the same lighting fixture. FIG. 9 is an exploded perspective view of the light source unit in the same lighting fixture as viewed from below. FIG. 10 is an exploded perspective view of the light source unit as seen from above. FIG. 11 is a perspective view in which the cover of the light source unit of the above is omitted. FIG. 12 is a front view of the fixture in the same lighting fixture. FIG. 13 is a plan view of the same fixture. FIG. 14 is a side view of the same fixture. FIG. 15 is a side view of the same fixture. FIG. 16 is a perspective view seen from below of a modified example of the light source unit of the above.

The lighting fixture according to the embodiment of the present invention will be described in detail with reference to the drawings. The lighting fixture 1 of the present embodiment is an embedded lighting fixture that is embedded and arranged in the ceiling. The configuration described in the following embodiments is only an example of the present invention. The present invention is not limited to the following embodiments, and various modifications can be made depending on the design and the like as long as the effects of the present invention can be achieved. That is, the luminaire 1 is not limited to the embedded luminaire, and may be, for example, a luminaire directly attached to the ceiling.

As shown in FIGS. 1 and 4, the lighting fixture 1 of the present embodiment includes a light source unit 2 and a fixture main body 10 that supports the light source unit 2. However, in the following description, unless otherwise specified, the vertical, front-rear, and left-right directions of the luminaire 1 are defined in FIG.

As shown in FIGS. 4 and 5, the instrument body 10 has a rectangular parallelepiped-shaped (box-shaped) accommodating portion 11 having an open lower surface and a quadrangular pyramid-shaped (square tubular) reflecting member 12 having an open upper surface and a lower surface. And have. The accommodating portion 11 has a square bottom wall 110 and four rectangular side walls 111 protruding downward from the four sides of the bottom wall 110. The bottom wall 110 has a plurality of insertion holes 1100 through which a power supply line for power supply is inserted. The power line inserted through the insertion hole 1100 is electrically connected to the terminal block 13 attached to the lower surface of the bottom wall 110. Further, the bottom wall 110 has a plurality of bolt insertion holes 1101 into which hanging bolts 90 embedded in the ceiling frame 9 of the building are inserted (see FIG. 4). These plurality of bolt insertion holes 1101 are provided in the bottom wall 110 so as to be arranged in a row in the left-right direction. The bottom wall 110 and the four side walls 111 of the accommodating portion 11 are preferably integrally formed of a metal plate such as a steel plate.

Each of the left side wall 111 and the right side wall 111 has a pair of locking portions 112 and a pair of conducting portions 113 (see FIG. 5). The pair of locking portions 112 project obliquely upward from the inner surface of each side wall 111 (see FIG. 6). It is preferable that these locking portions 112 are formed by cutting up a part of the side wall 111. Further, the pair of conductive portions 113 are formed by cutting and raising a part of the side wall 111 (see FIG. 5). Further, each of the left side wall 111 and the right side wall 111 has a pair of restricting pieces 115. The pair of restricting pieces 115 have a substantially rectangular flat plate shape, and project from the inner side surfaces at both ends in the longitudinal direction (front-rear direction) of each side wall 111 so as to be parallel to the front side wall 111 and the rear side wall 111. It is preferable that these regulation pieces 115 are formed by cutting up from each side wall 111.

Each of the front side wall 111 and the rear side wall 111 has a pair of locking portions 112 and a hooking portion 114 (see FIG. 5). Similar to the locking portions 112 of the left and right side wall 111s, the pair of locking portions 112 are formed so as to project obliquely upward from the inner side surface of each side wall 111 by cutting up a part of the side wall 111. Has been done. The hooking portion 114 is provided at the center of the side wall 111 in the longitudinal direction. The hook portion 114 has a hole that penetrates the side wall 111 in the thickness direction thereof. As shown in FIG. 7, the hook portion 114 on the front side has an inverted U-shaped hole when viewed from the front-rear direction. As shown in FIG. 8, the hooking portion 114 on the rear side includes a rectangular temporary holding piece 1140 that protrudes upward from the lower edge and a rectangular first projecting piece 1141 that protrudes downward from the upper edge. It has a hole formed in a substantially H shape. Further, the hooking portion 114 on the rear side has a second projecting piece 1142 that protrudes upward from the end in the longitudinal direction (left-right direction) of the temporary holding piece 1140. That is, in the hole of the hook portion 114 on the rear side, a portion sandwiched between the temporary holding piece 1140 and the second projecting piece 1142 and the first projecting piece 1141 is formed in a hook shape along the vertical direction.

The reflective member 12 includes four reflectors 120, four side plates 121 projecting upward from the upper end of each reflector 120, and a frame 122 projecting from the lower end of each reflector 120 in the front-rear direction and the left-right direction. Has (see FIG. 5). Each reflector 120 is formed in a trapezoidal shape. Each side plate 121 is formed in a substantially trapezoidal shape. Each side plate 121 is coupled to the corresponding one side wall 111 of the four side walls 111 of the accommodating portion 11. The frame body 122 is formed in a square frame shape and is connected to the lower ends of each of the four reflectors 120. The reflecting member 12 is configured to adjust the light distribution of the light emitted by the light source unit 2 by the inner surfaces (reflecting surfaces) of the four reflecting plates 120.

The four side plates 121 are all formed in the same shape. Each side plate 121 has a pair of rectangular locking holes 123, a rectangular through hole 124, and a pair of trapezoidal holes 125 (see FIG. 5). The through hole 124 is provided substantially in the center of the side plate 121 in the longitudinal direction. The pair of holes 125 are provided on both sides of the through holes 124 along the longitudinal direction of the side plate 121. The pair of locking holes 123 are provided on both sides of the pair of holes 125 along the longitudinal direction of the side plate 121 and the longitudinal direction thereof is aligned with the longitudinal direction of the side plate 121. A pair of locking holes 123 are provided in each of the four side plates 121, and a pair of locking portions 112 are provided in each of the four side walls 111 of the accommodating portion 11. Inserted one by one. The locking portion 112 inserted into the locking hole 123 is locked to the side plate 121 by hitting the upper edge of the locking hole 123 in each side plate 121 (see FIGS. 4 and 6).

As described above, a total of eight locking portions 112 are locked to the side wall 111, so that the accommodating portion 11 and the reflective member 12 are combined to form the instrument main body 10 (see FIG. 4). Further, the pair of conductive portions 113 provided on each side wall 111 are bent so as to be inserted into the corresponding holes 125 (see FIG. 4). The bent conductive portion 113 contacts the edge of the hole 125 in the side plate 121. That is, the accommodating portion 11 is electrically conductive with the reflecting member 12 via the conductive portion 113. Further, the hooking portion 114 provided on the side wall 111 overlaps with the through hole 124 provided on the side plate 121 along the thickness direction (front-back direction) of the side wall 111 and the side plate 121 (see FIG. 4).

As shown in FIGS. 9 and 10, the light source unit 2 includes two LED (Light Emitting Diode) modules 3, a mounting member 4, a cover 5, a power supply unit 6, a wireless communication unit 7, and two mountings. It is equipped with a tool 8.

The mounting member 4 has a square mounting plate 40 and four side plates 41 protruding downward from each of the four sides of the mounting plate 40. However, it is preferable that the mounting plate 40 and the four side plates 41 are integrally formed by bending a metal plate such as a zinc steel plate. Each of the four side plates 41 is formed in an elongated rectangular shape.

Each of the two LED modules 3 is configured by mounting a large number of LEDs 30 on the mounting surface (lower surface) of the rectangular mounting board 31. Each LED 30 is, for example, a white LED for illumination that emits white light. These plurality of LEDs 30 are arranged in a grid pattern on the mounting surface of the mounting board 31, and are electrically connected to each other via a wiring conductor (copper foil) formed on the mounting surface. Further, on the mounting surface of each mounting board 31, a receptacle connector 32 electrically connected to each LED 30 via a wiring conductor is mounted. The receptacle connector 32 is removably connected to a plug connector connected to the output line of the power supply unit 6 as described later. The two LED modules 3 are attached to the lower surface of the mounting plate 40 by screwing so as to be arranged at intervals in the left-right direction (see FIG. 11).

The power supply unit 6 has a power supply circuit configured by mounting electronic components on a printed wiring board 61, and a case 60 accommodating the power supply circuit (see FIG. 10). The power supply circuit includes an input connector 62, a rectifier, a power factor improving circuit, a step-down DC / DC converter, an output connector 63, and the like. The input connector 62 is electrically connected to the terminal block 13 via an electric wire. The power supply circuit converts the AC power input from the input connector 62 into DC power, and then outputs the converted DC power from the output connector 63 via an electric wire (output line). DC power is supplied to each LED 30 of each LED module 3 via a plug connector and a receptacle connector 32 connected to the tip of the output line.

In the printed wiring board 61, a wiring conductor (copper foil) is formed on the component surface of a long rectangular flat plate-shaped insulating substrate. So-called lead components such as an input connector 62, an output connector 63, a smoothing capacitor, and a choke coil are mounted on the surface of the printed wiring board 61. Then, the surface mount component of the electronic components constituting the power supply circuit is mounted on the solder surface of the printed wiring board 61. However, the input connector 62 is mounted on one end (left end) of the printed wiring board 61 in the longitudinal direction, and the output connector 63 is mounted on the other end (right end) of the printed wiring board 61 in the longitudinal direction. As shown in FIG. 10, the case 60 is formed in a long box shape by a metal plate material. The case 60 houses the printed wiring board 61 inside so that the input connector 62 and the output connector 63 are exposed. The power supply unit 6 is screwed to the front end of the upper surface of the mounting plate 40 so that the longitudinal direction of the case 60 coincides with the left-right direction (see FIG. 10).

As shown in FIG. 10, the wireless communication unit 7 includes a housing 70 made of synthetic resin, a signal cable 71, a plug connector 72, and the like. The wireless communication unit 7 is configured to acquire a control command from a wireless signal (for example, a wireless signal using a radio wave in the 920 MHz band as a medium) received by an antenna housed in the housing 70. The wireless signal is transmitted from the transmitter and transmits a control command for turning on / off the lighting fixture 1 and / or dimming. The wireless communication unit 7 is configured to transmit a control command acquired from the wireless signal to the power supply circuit of the power supply unit 6 via the signal cable 71 and the plug connector 72. The plug connector 72 is electrically connected to the receptacle connector provided in the power supply unit 6. The power supply circuit of the power supply unit 6 is configured to turn on / off and dimm the LED module 3 by adjusting the DC power output from the output connector 63 in response to a control command transmitted from the wireless communication unit 7. ing.

The wireless communication unit 7 is mounted on the upper surface of the mounting plate 40 (see FIG. 10). The mounting plate 40 is provided with a hole 400 through which a part of the housing 70 of the wireless communication unit 7 (antenna accommodating portion 700 accommodating the antenna) is inserted (see FIG. 9). The housing 70 of the wireless communication unit 7 is fixed to the upper surface of the mounting plate 40 with the antenna accommodating portion 700 inserted through the hole 400. However, the hole 400 is located between the two LED modules 3 on the lower surface of the mounting plate 40. Therefore, the antenna accommodating portion 700 projects downward from between the two LED modules 3 on the lower surface of the mounting plate 40 (see FIG. 11).

As shown in FIG. 10, the cover 5 has a square bottom portion 50, a peripheral wall portion 51 rising upward from the peripheral edge of the bottom portion 50, and four mounting portions 52 provided at the upper ends of the peripheral wall portion 51. There is. The bottom portion 50, the peripheral wall portion 51, and the four mounting portions 52 are preferably integrally formed of a translucent synthetic resin material such as an acrylic resin or a polycarbonate resin. Further, it is preferable that at least the bottom portion 50 and the peripheral wall portion 51 are configured so as to diffuse light by applying a textured treatment to the surfaces thereof. Alternatively, it is preferable that at least the bottom portion 50 and the peripheral wall portion 51 are configured to diffuse light by mixing a diffusing agent into the synthetic resin material. Each mounting portion 52 includes a rectangular projecting piece 520 projecting from the upper end of the peripheral wall portion 51 in parallel with the bottom portion 50, an engaging piece 521 formed in a hook shape and projecting upward from the upper end of the peripheral wall portion 51, and a peripheral wall. It has a protrusion 522 that projects upward from the upper end of the portion 51.

The cover 5 is attached to the attachment member 4 so that the peripheral wall portion 51 is housed inside the side plate 41 of the attachment member 4. Here, in the mounting plate 40 of the mounting member 4, one mounted portion 42 is provided at a position corresponding to the four mounting portions 52 of the cover 5, that is, at the center in the longitudinal direction on the four sides of the mounting plate 40. (See FIGS. 9 and 10). Each mounted portion 42 has a mounting hole 420 that penetrates the mounting plate 40 in the thickness direction, and a caulking piece 421 that projects upward from the edge of the mounting hole 420 along the side plate 41. The engaging piece 521 and the protrusion 522 of each mounting portion 52 are inserted into the corresponding mounting holes 420 from the bottom to the top of the mounting plate 40 (see FIG. 10). Then, each crimping piece 421 is crimped inward, so that the engaging piece 521 engages with the crimping piece 421. That is, the cover 5 is attached to the attachment plate 40 of the attachment member 4 so as to accommodate the peripheral wall portion 51 inside the side plate 41 (see FIG. 10).

The two fixtures 8 have the same configuration. Each fixture 8 has a mounting spring 80 and a mounting bracket 85 for mounting the mounting spring 80 to the mounting plate 40 (see FIGS. 10 and 12-15). The mounting spring 80 is composed of a torsion coil spring having a coil portion 81, two arm portions, and a terminal portion 84. The longer arm of the two arms is called the first arm 82, and the shorter arm is called the second arm 83. The first arm portion 82 has a hook piece 820, a first arm piece 821, and a second arm piece 822. The first arm piece 821 projects in the radial direction of the coil portion 81 from the terminal of the coil portion 81. However, a plurality of locations (for example, two locations) in the longitudinal direction of the first arm piece 821 are bent in the same direction (downward) (see FIG. 15). The hook piece 820 is formed in a U shape when viewed from the front-rear direction, and is connected to the tip of the first arm piece 821 at one end in the longitudinal direction and to the tip of the second arm piece 822 at the other end in the longitudinal direction ( See FIG. 13). The rear end of the second arm piece 822 is connected to the terminal portion 84. However, a plurality of locations (for example, two locations) in the longitudinal direction of the second arm piece 822 are bent in the same direction (downward) (see FIG. 14). The terminal portion 84 projects from the rear end of the second arm piece 822 substantially in parallel with the hook piece 820.

The mounting bracket 85 has a base 850, a first support portion 851, a second support portion 852, a regulation portion 853, and a fixing portion 854. The base 850 is formed in a substantially rectangular flat plate shape (see FIG. 12). The first support portion 851 is provided at one end in the longitudinal direction of the base 850. The first support portion 851 is formed in a bridge shape and is inserted through the coil portion 81 of the mounting spring 80 (see FIG. 13). That is, the first support portion 851 is configured to rotatably support the coil portion 81 around its axis. The second arm piece 822 is hooked on the base 850 (see FIG. 15).

The second support portion 852 is provided at the other end of the base 850 in the longitudinal direction. The second support portion 852 is formed in a semi-cylindrical shape, and the terminal portion 84 of the mounting spring 80 is inserted through the second support portion 852 (see FIGS. 12 to 14). That is, the second support portion 852 is configured to rotatably support the first arm portion 82 about the terminal portion 84 as an axis. In other words, the second support portion 852 is configured to rotatably support the first arm portion 82 with the end portion of the second arm piece 822 as a fulcrum. Here, when viewed from the thickness direction (vertical direction) of the base 850, the axes of the coil portion 81 and the axes of the second support portion 852 are substantially linearly aligned (see FIG. 12). On the other hand, when viewed from the longitudinal direction (left-right direction) of the base 850, the axis of the coil portion 81 is above the axis of the second support portion 852 (see FIG. 14).

The restricting portion 853 is formed in a rectangular flat plate shape, and is configured to project diagonally upward from one end in the lateral direction of the base 850. That is, the regulating portion 853 is configured to regulate the displacement (rotation) of the first arm portion 82 by abutting the tip thereof on the first arm piece 821. The fixing portion 854 projects upward from the base 850 so as to line up with the second support portion 852 along the lateral direction of the base 850, and a circular screw insertion hole 855 is provided on the upper surface thereof (see FIG. 12). The mounting bracket 85 is fixed to both ends in the front-rear direction and the center position in the left-right direction on the upper surface of the mounting plate 40 by screwing the screws inserted into the screw insertion holes 855 of the fixing portion 854 into the screw holes of the mounting plate 40. (See FIG. 10). Then, the first arm portion 82 of the mounting spring 80 projects to the outside of the mounting plate 40 (see FIG. 11).

Here, the second arm piece 822 is formed longer than the first arm piece 821. Therefore, in the state where the mounting spring 80 is attached to the mounting bracket 85, the second arm piece 822 protrudes in the direction away from the mounting bracket 85 from the first arm piece 821, so that the hook piece 820 and the second arm piece 822 are separated. It is slightly bent (see FIGS. 12-15). However, when an upward force is applied to the first arm portion 82, the coil portion 81 is displaced upward while being supported by the first support portion 851. Therefore, when viewed from the axial direction of the coil portion 81, the first arm piece 821 And the terminal of the second arm piece 822 (terminal unit 84) substantially overlap. As a result, the bending of the hook piece 820 and the second arm piece 822 when an upward force is applied to the first arm portion 82 is eliminated, so that the hook piece 820 is substantially parallel to the axis of the coil portion 81. It becomes a state.

Next, the work of constructing the lighting fixture 1 on the ceiling will be described. The worker who performs the construction work first inserts the power line into the insertion hole 1100 of the bottom wall 110, and then attaches the instrument body 10 to the suspension bolt by tightening the nut 91 to the suspension bolt 90 inserted through the bolt insertion hole 1101. (See FIG. 4). Further, the operator arranges the instrument main body 10 on the ceiling by connecting the power supply line drawn from the insertion hole 1100 to the terminal block 13. In the instrument main body 10, since the accommodating portion 11 and the reflective member 12 are electrically conducted by the conductive portion 113, it is possible to save the trouble of performing grounding work on both the accommodating portion 11 and the reflective member 12.

Subsequently, the operator inserts the hook piece 820 of the rear mounting spring 80 into the hole of the hook portion 114 provided on the rear side wall 111 through the through hole 124 provided in the rear side plate 121. At this time, the operator inserts the longitudinal end of the hook piece 820 from above the second projecting piece 1142 in the hole of the hooking portion 114, and then from between the temporary holding piece 1140 and the first projecting piece 1141. Insert the entire hook piece 820. If an operator applies an upward force to the first arm 82 of the mounting spring 80 to insert it into the hole of the hook 114, the hook piece 820 of the first arm 82 is substantially parallel to the axis of the coil 81. It becomes easier to improve workability. Then, the operator can temporarily hold the light source unit 2 on the instrument main body 10 by hooking the hook piece 820 of the first arm portion 82 on the temporary holding piece 1140 of the hook portion 114. Here, since the displacement of the first arm portion 82 is regulated at the position corresponding to the restricting portion 853 of the mounting bracket 85, plastic deformation due to excessive displacement is suppressed.

The operator connects the terminal block 13 and the power supply unit 6 while the light source unit 2 is temporarily held by the instrument main body 10. In the temporary holding state, even if the hooking piece 820 moves between the temporary holding piece 1140 and the first projecting piece 1141, the hooking piece 820 is caught by the second projecting piece 1142, so that the mounting spring 80 is carelessly used. It is extremely unlikely that it will come off the hook 114.

Then, after inserting the first arm portion 82 of the front mounting spring 80 into the hole of the hooking portion 114 provided on the front side wall 111, the operator lifts the light source unit 2 and accommodates it in the accommodating portion 11. When the light source unit 2 is housed in the housing portion 11, the first arm portion 82 of each mounting spring 80 is hooked on the edge of the hooking portion 114 of the side wall 111. As a result, the light source unit 2 is supported by the instrument body 10 by the spring forces of the two mounting springs 80. The construction work of the lighting fixture 1 is completed by the above procedure. The position of the light source unit 2 in the housing portion 11 is restricted by the upper surface of the mounting plate 40 of the mounting member 4 hitting the lower end of the regulation piece 115 of the housing portion 11 (see FIG. 6). Therefore, in the lighting fixture 1, the power supply unit 6 does not hit the mounting plate 40, and the stress applied from the fixture main body 10 to the light source unit 2 can be reduced.

Here, the mounting spring 80 of the light source unit 2 is outside the housing portion 11 through a hole of the hooking portion 114 provided on the side wall 111 of the housing portion 11 in a state where the light source unit 2 is mounted on the fixture main body 10. It protrudes (see FIG. 2). That is, in the lighting fixture 1, since the arms of the plurality of fixed springs do not protrude above the top surface of the fixture body 10 as in the conventional example, the first arm of the mounting spring 80 is above the fixture body 10. No space is required for the part 82 to escape. As a result, the luminaire 1 can easily improve the workability of the construction work.

Further, the first arm portion 82 is oriented away from the bottom wall 110 along the insertion direction (vertical direction) of the light source unit 2 as it is separated from the mounting member 4 along the direction (front-back direction) protruding from the mounting member 4. It is formed so as to bend downward). Therefore, it is possible to prevent the first arm portion 82 of the mounting spring 80 protruding from the side wall 111 from interfering with the member above the instrument main body 10 and reducing the workability of the construction work.

Further, the light source unit 2 includes a plurality of mounting springs 80 (for example, two). At least one of these two mounting springs 80 is arranged on each of the two opposing sides (front side and rear side) of the mounting member 4. Therefore, when the operator removes the light source unit 2 from the instrument body 10, the light source unit 2 may be pulled down from the instrument body 10 and then the mounting springs 80 may be pulled out from the holes of the hooking portions 114. It becomes easier to improve workability when removing.

However, the two fixtures 8 included in the light source unit 2 do not necessarily have to have the same structure. For example, as a modification of the light source unit 2, as shown in FIG. 16, the fixture 8 on one side may have a hook-shaped hook metal fitting 86 instead of the mounting spring 80. The hook metal fitting 86 is formed in a hook shape and projects outward from the end of the mounting member 4 of the light source unit 2. The hook metal fitting 86 can be hooked on the hook portion 114 of the side wall 111 of the fixture body 10 to temporarily hold the light source unit 2 on the fixture body 10. Then, the light source unit 2 is supported by the accommodating portion 11 of the instrument main body 10 by hooking the hook metal fitting 86 on the hook portion 114 on the rear side and hooking the mounting spring 80 on the hook portion 114 on the front side.

By the way, since the mounting spring 80 is a torsion coil spring having a basic shape having only one coil portion 81, the first arm portion 82 is rotated while the hook piece 820 is kept parallel to the axis of the coil portion 81. Is difficult. Therefore, the mounting bracket 85 of the mounting tool 8 has a first support portion 851 that rotatably supports the coil portion 81 around its axis, and a first arm portion 82 that rotatably supports the first arm portion 82 as a fulcrum. It is provided with two support portions 852. The second support portion 852 is configured to arrange the rotation fulcrum of the first arm portion 82 at a position close to the mounting member 4 (mounting plate 40) with respect to the axis of the coil portion 81. Therefore, the bending of the hook piece 820 and the second arm piece 822 when the first arm portion 82 is rotated by applying a force is eliminated, so that the hook piece 820 is in a state of being substantially parallel to the axis of the coil portion 81. Can be. When the hook piece 820 is in a state of being substantially parallel to the axis of the coil portion 81, the operator can easily insert the hook piece 820 into the hole of the hook portion 114.

As described above, the lighting fixture 1 has a light source unit 2 and a fixture main body 10 that supports the light source unit 2. The light source unit 2 includes a light source (LED module 3), a mounting member 4 formed in a plate shape and to which the LED module 3 is mounted, and a mounting spring 80. The mounting spring 80 is composed of a torsion coil spring having a coil portion 81 and an arm portion (first arm portion 82). The first arm portion 82 is formed in a U shape. The mounting spring 80 is configured to support the end portions of the coil portion 81 and the first arm portion 82 with the mounting member 4 in a state where the first arm portion 82 is projected from the mounting member 4. The appliance main body 10 is formed in a box shape having an opening on one surface, and has an accommodating portion 11 into which a part of the light source unit 2 including the mounting member 4 is inserted through the opening, and a hooking portion 114 on which the mounting spring 80 is hooked. To be equipped. The accommodating portion 11 has a flat plate-shaped bottom wall 110 facing the mounting member 4 along the insertion direction of the light source unit 2, and a side wall 111 rising from the peripheral edge of the bottom wall 110. The hook portion 114 has a hole that penetrates the side wall 111 in the thickness direction thereof, and is configured so that the first arm portion 82 of the mounting spring 80 is hooked on the edge of the hole in the side wall 111. The light source unit 2 is supported by the instrument main body 10 by the spring force of the mounting spring 80 in a state where the first arm portion 82 is hooked on the hook portion 114.

Since the luminaire 1 is configured as described above, the arms of each of the plurality of fixed springs do not protrude above the top surface of the fixture body as in the conventional example, and the mounting springs are mounted above the fixture body 10. No space is required to allow the first arm 82 of the 80 to escape. As a result, the luminaire 1 can easily improve the workability of the construction work.

In the luminaire 1, the first arm portion 82 is the bottom wall of the accommodating portion 11 along the insertion direction (vertical direction) of the light source unit 2 as it separates from the mounting member 4 along the direction protruding from the mounting member 4. It is preferably formed so as to bend away from 110.

If the luminaire 1 is configured as described above, the first arm portion 82 projecting outside the side wall 111 of the accommodating portion 11 is arranged below the bottom wall 110 of the accommodating portion 11 and above the instrument main body 10. It is possible to prevent the object existing in the first arm portion 82 from interfering with the first arm portion 82.

In the luminaire 1, the light source unit 2 preferably includes a plurality of mounting springs 80. The mounting member 4 is preferably formed in the shape of a quadrilateral plate. It is preferable that at least one of the plurality of mounting springs 80 is arranged on each of the two opposing sides of the mounting member 4.

If the lighting fixture 1 is configured as described above, it becomes easy to improve workability when removing the light source unit 2 from the fixture main body 10.

In the lighting fixture 1, the fixture body 10 preferably includes a plurality of hooking portions 114. The hooking portion 114 of one of the plurality of hooking portions 114 projects from the edge of the hole in the side wall 111 so as to prevent the insertion of the first arm portion 82 (first projecting piece 1141 and second projecting piece 1142). ) Is preferable.

If the luminaire 1 is configured as described above, it is difficult for the first arm portion 82 to come out from the hole of the hooking portion 114 by being caught by the projecting pieces (first projecting piece 1141 and second projecting piece 1142). It is possible to reduce the possibility that the 80 will inadvertently come off the hooking portion 114.

In the luminaire 1, the light source unit 2 has a regulating portion 853 that faces the mounting member 4 with the first arm portion 82 interposed therebetween and regulates the displacement of the first arm portion 82 along the direction away from the mounting member 4. Is preferable.

If the luminaire 1 is configured as described above, the displacement of the first arm portion 82 is regulated at the position corresponding to the regulation portion 853 of the mounting bracket 85, so that the plastic deformation of the first arm portion 82 due to excessive displacement is suppressed. Is planned.

In the luminaire 1, the light source unit 2 has a first support portion 851 that rotatably supports the coil portion 81 around its axis, and a second support portion 82 that rotatably supports the first arm portion 82 with its end as a fulcrum. It is preferable to provide a support portion 852. The second support portion 852 is preferably configured so that the fulcrum is arranged at a position close to the mounting member 4 with respect to the axis of the coil portion 81.

If the luminaire 1 is configured as described above, the hooking piece 820 and the second arm piece 822 are not bent when the first arm portion 82 is rotated by applying a force, so that the hooking piece 820 is eliminated. Can be in a state substantially parallel to the axis of the coil portion 81. When the hook piece 820 is in a state of being substantially parallel to the axis of the coil portion 81, the operator can easily insert the hook piece 820 into the hole of the hook portion 114.

1 Lighting equipment 2 Light source unit 3 LED module (light source)
4 Mounting member 11 Accommodating part 80 Mounting spring 81 Coil part 82 First arm part (arm part)
110 Bottom wall 111 Side wall 114 Hooking part 851 1st support part 852 2nd support part 853 Restriction part 1141 1st projecting piece (projecting piece)
1142 Second projectile (projection piece)

Claims (6)

It has a light source unit and an instrument body that supports the light source unit.
The light source unit includes a light source, a mounting member formed in a plate shape to which the light source is mounted, and a mounting spring.
The mounting spring is composed of a torsion coil spring having a coil portion and an arm portion.
The arm is formed in a U shape,
The mounting spring is configured to support the coil portion and the end portion of the arm portion by the mounting member in a state where the arm portion protrudes from the mounting member.
The instrument body is formed in a box shape having an opening on one surface, and has an accommodating portion into which a part of the light source unit including the mounting member is inserted through the opening and a hooking portion on which the mounting spring is hooked. Prepare,
The accommodating portion has a flat plate-shaped bottom wall facing the mounting member along the insertion direction of the light source unit, and a side wall rising from the peripheral edge of the bottom wall.
The hook portion has a hole that penetrates the side wall in the thickness direction thereof, and is configured such that the arm portion of the mounting spring is hooked on the edge of the hole in the side wall.
The light source unit is a lighting fixture in which the arm portion is hooked on the hook portion and is supported by the fixture main body by the spring force of the mounting spring. The arm portion is formed so as to bend away from the bottom wall of the accommodating portion along the insertion direction of the light source unit as the arm portion is separated from the mounting member along a direction protruding from the mounting member. The lighting equipment according to claim 1, wherein the lighting equipment is provided. The light source unit includes a plurality of the mounting springs.
The mounting member is formed in the shape of a quadrilateral plate.
The luminaire according to claim 1 or 2, wherein the plurality of mounting springs are arranged at least one on each of two opposing sides of the mounting member. The instrument body is provided with a plurality of the hooking portions.
3. The third aspect of claim 3, wherein one of the plurality of hooking portions has a protrusion protruding from the edge of the hole in the side wall so as to prevent the insertion of the arm portion. Lighting equipment. Claims 1 to 4 include the light source unit having a regulating portion that faces the mounting member with the arm portion interposed therebetween and regulates the displacement of the arm portion along a direction away from the mounting member. The lighting equipment according to any one of the above. The light source unit includes a first support portion that rotatably supports the coil portion around its axis, and a second support portion that rotatably supports the arm portion with its end as a fulcrum.
The second support portion according to any one of claims 1 to 5, wherein the fulcrum is arranged at a position close to the mounting member with respect to the axis of the coil portion. Lighting equipment.

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