JP6593746B2 - Light source unit and lighting apparatus - Google Patents

Description

  The present invention relates to a light source unit and a lighting fixture, and more particularly to a light source unit configured by housing a light source in a case, and a lighting fixture including the light source unit.

  As a conventional example, a light source unit and a lighting fixture described in Patent Document 1 are illustrated. The lighting fixture described in Patent Document 1 (hereinafter referred to as a conventional example) includes a light source unit and a fixture body. The instrument body is provided with a rectangular recess on its lower surface over the entire length in the longitudinal direction, and is configured to accommodate the light source unit in the recess. The light source unit includes an LED module, a support member that supports the LED module, a waterproof case that houses the support member that supports the LED module, a power supply device, and a fixture.

  In the light source unit, fixtures are screwed to both ends in the longitudinal direction. Each attachment includes a fixing portion that is fixed to the instrument body. The fixing portion is provided with a hole through which a fixing screw is inserted. The fixing screw is configured not to come out of the hole of the fixing portion by attaching a washer made of synthetic resin to the screw portion inserted through the hole.

Japanese Patent Laying-Open No. 2015-88242

  By the way, in a prior art example, when a metal washer is attached to a screw part, there is a problem that workability at the time of attaching to a screw part is lower than that of a synthetic resin washer.

  This invention is made | formed in view of the said subject, and it aims at suppressing the fall of workability | operativity, using a metal washer.

The light source unit of the present invention includes a light source, a case that accommodates the light source, and a fixture for attaching the case to an instrument body, and the fixture includes a first fixing portion that is fixed to the case, A second fixing portion that is fixed to the instrument body; and a connecting portion that connects the first fixing portion and the second fixing portion, wherein the screw portion of the mounting screw is inserted through the second fixing portion. The mounting screw has a built-in screw in which a metal washer is incorporated in the screw portion, and the connecting portion has a passage hole through which the screw portion and the washer can pass. The screw insertion hole is configured to be connected to the passage hole, and the mounting screw has a wave washer between the head and the washer, and the head is connected to the second fixing portion. The wave washer is attached to the second fixing portion so that the wave washer is disposed on the same side. Hole, the wave washer formed into a not pass through the size and wherein the Rukoto.

  The lighting fixture of this invention is equipped with the light source unit and the fixture main body to which the said light source unit is attached, It is characterized by the above-mentioned.

  The light source unit and the lighting fixture of the present invention have an effect that it is possible to suppress a decrease in workability while using a metal washer.

It is sectional drawing of the light source unit and lighting fixture which concern on this embodiment. It is a disassembled perspective view of the light source unit and lighting fixture which concern on this embodiment. It is the top view which abbreviate | omitted one part of the LED module and support member in the light source unit which concerns on this embodiment. FIG. 4A is a cross-sectional view of the fixture of the light source unit according to the present embodiment and a mounting screw not attached to the fixture, and FIG. 4B is the attachment of the light source unit according to the present embodiment and the fixture attached to the fixture. It is sectional drawing which abbreviate | omitted a part of screw. It is a perspective view of the fixture of the light source unit which concerns on this embodiment. It is sectional drawing which abbreviate | omitted one part of the light source unit and lighting fixture which concern on this embodiment. It is the perspective view which a part of light source unit concerning this embodiment omitted. 8A is a front view of the lighting fixture according to the present embodiment, FIG. 8B is a plan view of the lighting fixture according to the present embodiment, and FIG. 8C is a left side view of the lighting fixture according to the present embodiment. It is sectional drawing which abbreviate | omitted one part of the attachment screw attached to the fixture of the light source unit which concerns on this embodiment, and a fixture.

  Hereinafter, the light source unit 2 and the lighting fixture according to the present embodiment will be described in detail with reference to the drawings. The configurations described in the following embodiments are merely examples of the present invention. The present invention is not limited to the following embodiments, and various modifications can be made according to the design and the like as long as they do not depart from the technical idea of the present invention. Further, in the following description, unless otherwise specified, each direction of up and down, front and rear, and left and right is defined in FIG. That is, the longitudinal direction of the light source unit 2 and the lighting fixture is the left-right direction, the short direction of the light source unit 2 and the lighting fixture is the front-rear direction, and the height direction of the light source unit 2 and the lighting fixture is the vertical direction. In the following, “direction” and “direction” are distinguished from each other. For example, in the “left-right direction”, there are two directions of “leftward” and “rightward”. When two “directions” are not distinguished from each other, “˜direction” is set, and when two “directions” are distinguished from each other, It is called “to direction”.

  As shown in FIGS. 1 and 2, the lighting fixture according to this embodiment includes a light source unit 2 and a fixture body 1. The lighting apparatus according to the present embodiment is a moisture-proof / rain-proof lighting apparatus, such as a ceiling of an open corridor of an apartment house, an eaves of an outdoor bicycle parking lot, an eaves of a truck yard in a warehouse, or a ceiling of a food factory with high humidity. It is preferable to be installed in the However, the light source unit and the lighting fixture to which the technical idea of the present invention can be applied are not limited to the moistureproof / rainproof type.

  The instrument main body 1 is formed in a long rectangular parallelepiped shape (box shape) whose bottom surface is opened by a metal plate such as a zinc steel plate. More specifically, the instrument main body 1 includes a top plate 10, a pair of first side walls 11A and 11B, and a pair of second side walls 12A and 12B (see FIG. 2). The top plate 10 is formed in a long rectangular flat plate shape. The top plate 10 has a hole through which the power cable is inserted and a long hole through which the mounting bolt is inserted at the center in the lateral direction (front-rear direction) and the center in the longitudinal direction (left-right direction) and both ends. Each is preferably provided. The pair of first side walls 11 </ b> A and 11 </ b> B are formed in a long rectangular flat plate shape whose longitudinal dimension is equal to the longitudinal dimension of the top plate 10. One first side wall 11 </ b> A protrudes downward from the front end of the top plate 10, and the other first side wall 11 </ b> B protrudes downward from the rear end of the top plate 10. In addition, the pair of second side walls 12 </ b> A and 12 </ b> B are formed in a rectangular flat plate shape whose longitudinal dimension is equal to the lateral dimension of the top plate 10. One second side wall 12A protrudes downward from the left end of the top plate 10, and the other second side wall 12B protrudes downward from the right end of the top plate 10. Note that mounting bases 13A and 13B are attached to both ends of the top plate 10 in the longitudinal direction. The mounting bases 13A, 13B protrude inward from the fixed piece 130 fixed to the top plate 10, the vertical piece 131 protruding from the fixed piece 130 along the second side walls 12A, 12B, and the lower end of the vertical piece 131. And an attachment piece 132 (see FIG. 2). Each attachment piece 132 is provided with a screw hole (female screw) 133.

  As shown in FIGS. 1 to 3 and 7, the light source unit 2 includes an LED module 3 and a support member 4 that supports the LED module 3. Furthermore, the light source unit 2 preferably includes a case 5 that accommodates the support member 4 that supports the LED module 3, a power supply device 6, a fixture 7, and a fixture 8.

  The LED module 3 includes a substrate (printed wiring board) 31 formed in a rectangular plate shape that is long in the left-right direction (see FIGS. 2 and 3). The substrate 31 is preferably composed of, for example, a metal substrate or a ceramic substrate. A plurality of LEDs (light emitting diodes) 30 are mounted on the lower surface of the substrate 31 so as to be arranged at regular intervals along the longitudinal direction (see FIG. 3). The plurality of LEDs 30 are electrically connected in series via a conductor (copper foil) formed on the substrate 31. The conductor formed on the substrate 31 is electrically connected to the output terminal of the power supply device 6 via a connector mounted on the substrate 31 and an electric wire electrically connected to the connector.

  In addition, the substrate 31 is provided with a plurality of first groove portions 310 and second groove portions 311 at both ends (front end and rear end) in the short direction at intervals along the longitudinal direction (see FIG. 3). . The first groove portion 310 and the second groove portion 311 are preferably formed by cutting the front end and the rear end of the substrate 31 into a rectangular shape.

  The support member 4 is formed in a square shape by bending a sheet metal (see FIGS. 1 and 2). That is, the support member 4 includes a bottom plate 40 that is formed in a long and rectangular plate shape, and a pair of side plates 41 that rises upward along the longitudinal direction from both ends in the short width direction (front-rear direction) of the bottom plate 40.

  As shown in FIG. 3, the support member 4 includes a plurality of hook portions 43 that protrude forward (downward) from the front surface (lower surface) of the bottom plate 40 and a plurality of protrusions 44 that protrude forward from the front surface of the bottom plate 40. Have. The hook 43 is formed in a bowl shape. The hook portion 43 is inserted into the first groove portion 310 and is configured to hook and support the substrate 31 by sandwiching the substrate 31 with the bottom plate 40. The protrusion 44 is inserted into the second groove 311 and is configured to restrict the movement of the substrate 31 in the longitudinal direction. That is, the substrate 31 is slid in the longitudinal direction from the state of being placed on the front surface (lower surface) of the bottom plate 40, whereby the edge of the first groove portion 310 is hooked on the hook portion 43, and the second groove portion 311 is engaged. The protrusion 44 is inserted and is attached to the bottom plate 40.

  The power supply device 6 includes a power supply board and a storage case 60 for storing the power supply board (see FIG. 7). The power supply board is formed of a printed wiring board formed in a rectangular plate shape that is long in the left-right direction. The printed wiring board includes at least circuit components (for example, a transformer, a diode, a capacitor, etc.) that are required to generate the lighting power of the LED 30. Etc.) has been implemented. The storage case 60 is formed in a rectangular box shape that is open at both ends in the longitudinal direction (left-right direction). Moreover, it is preferable that the storage case 60 is attached to the upper surface of the support member 4 (the bottom plate 40) using a screw etc., for example.

  The case 5 includes a case main body 50, two end members 51, and a waterproof packing 52 (see FIG. 2). The case main body 50 is formed in a long cylindrical shape with both ends in the longitudinal direction opened by a synthetic resin material, and is configured to accommodate the LED module 3 and the support member 4 therein (FIGS. 1 and 2). reference). The support member 4 is fixed to the case main body 50 by three fixing tools 7 as will be described later.

  The case main body 50 includes a long and flat rear wall 500, a pair of side walls 501 projecting downward from both ends along the longitudinal direction of the rear wall 500, and a front wall 502 connecting the lower ends of the pair of side walls 501. (See FIG. 2). However, the connection part of a pair of side wall 501 and the front wall 502 is formed in the curved surface shape which protrudes outside (refer FIG. 1). Further, the pair of side walls 501 are curved outward so as to be separated from the rear wall 500 downward (see FIG. 1). Furthermore, the front wall 502 is formed in a semi-cylindrical shape that bulges downward from both ends toward the center. However, the case main body 50 is preferably formed by two-color extrusion molding of a synthetic resin material (such as acrylic resin or polycarbonate resin) having translucency and a synthetic resin material having no translucency. Here, a part formed of a synthetic resin material having translucency is referred to as a transmission part 503, and a part formed of a synthetic resin material having no translucency is referred to as a non-transmission part 504 (FIG. 1). reference). That is, the light emitted from the LED module 3 is subjected to light distribution control when passing through the transmission unit 503. Note that the transmissive portion 503 is preferably configured to diffuse light by mixing a diffusing material or forming a large number of irregularities.

  As shown in FIGS. 1, 2, and 7, the end member 51 includes a first bottom wall 510, a second bottom wall 511, an outer peripheral wall 512, an inner peripheral wall 513, and a cover portion 514. The first bottom wall 510 is formed in a shape similar to the outer shape of the case body 50 viewed from the left-right direction when viewed from the thickness direction (left-right direction). The second bottom wall 511 is formed in a shape (substantially semicircular shape) whose outer shape viewed from the thickness direction (left-right direction) is similar to the outer shape of the transmission part 503 of the case body 50 viewed from the left-right direction. The outer peripheral wall 512 is formed in a cylindrical shape that protrudes from the periphery of the first bottom wall 510 over the entire periphery. The inner peripheral wall 513 is formed in a cylindrical shape that protrudes from the first bottom wall 510 so as to face the outer peripheral wall 512. The cover part 514 protrudes in the thickness direction of the second bottom wall 511 from the arc-shaped portion of the peripheral edge of the second bottom wall 511, and the surface thereof is the same curved surface (substantially semi-cylindrical surface) as the surface of the outer peripheral wall 512. It is formed into a shape (see FIG. 2). A cylindrical recess 5140 is provided at the center of the lower surface of the cover portion 514 (see FIGS. 2 and 6). Further, a circular hole 5141 is formed in the bottom wall of the recess 5140. In addition, at the front end and the rear end of the inner peripheral surface of the cover portion 514, a protruding wall 515 that protrudes inward along the front-rear direction is integrally provided, and each protruding wall 515 and the inner peripheral surface of the cover portion 514 It is preferable that a space be formed between (see FIG. 6).

  The waterproof packing 52 is formed in a shape (cylindrical shape) similar to the outer peripheral wall 512 and the inner peripheral wall 513 of the end member 51 by a material having elasticity such as silicone resin. The waterproof packing 52 is press-fitted into a space surrounded by the first bottom wall 510, the outer peripheral wall 512, and the inner peripheral wall 513 of the end member 51 (see FIGS. 1 and 6). Further, the waterproof packing 52 is provided with a groove 520 over the entire circumference on the surface exposed from the tips of the outer peripheral wall 512 and the inner peripheral wall 513. And the edge part in the longitudinal direction of the case main body 50 is press-fit in this groove | channel 520 (refer FIG.1 and FIG.6). That is, the gap between the end member 51 and the case main body 50 is sealed by the waterproof packing 52, and the intrusion of water (rain water or the like) into the case main body 50 is suppressed.

  The fixture 7 includes a fixed piece 70, a pair of attachment pieces 71, and a pair of side walls 72 (see FIGS. 1 and 7). However, all the three fixtures 7 have the same structure. The fixing piece 70 is formed in a rectangular flat plate shape, and is provided with a screw hole 700 at one end (right end) in the lateral direction (left and right direction) and substantially at the center (see FIG. 7).

  The pair of attachment pieces 71 have a rectangular flat plate shape and are provided so as to protrude downward from the front end and the rear end of the fixed piece 70. Each mounting piece 71 is provided with a hook-shaped hook 73, a protrusion 74 having a shape obtained by dividing a sphere into four equal parts, and a rectangular hole (see FIG. 1). However, the protrusion 74 and the hole are arranged below the hook portion 73 so as to be lined up in the left-right direction.

  The pair of side walls 72 have a rectangular flat plate shape and are provided so as to protrude downward from the left end and the right end of the fixed piece 70.

  The fixing tool 7 hooks the hook portion 73 to the tip (upper end) of each side plate 41 of the support member 4, inserts the protrusion 74 into the hole provided in each side plate 41, and the crimping piece 410 bent and raised from each side plate 41. Are attached to the support member 4 by caulking them in the holes of the attachment pieces 71 (see FIGS. 1 and 7). In addition, it is preferable that these three fixing tools 7 are each attached to the both ends and center of the longitudinal direction (left-right direction) of the supporting member 4 (refer FIG. 7).

  As shown in FIGS. 1, 2, 5, and 7, the fixture 8 is connected to the first fixing portion 80, the second fixing portion 81, and the first fixing portion 80 and the second fixing portion 81. The part 82 is integrally formed by processing a metal plate. Further, the fixture 8 includes an attachment screw 83 for screwing the second fixing portion 81 to the attachment piece 132 of the instrument body 1.

  The first fixed portion 80 is formed in a flat rectangular plate shape, and a truncated cone-shaped protrusion 800 is provided at the center in the front-rear direction. A circular screw insertion hole 801 passes through the top surface of the protrusion 800 (see FIG. 5). Further, it is preferable that a bridge 802 protruding upward is formed at one end (the left end in FIG. 5) of the first fixing portion 80. A vertical wall 803 that rises upward is provided at the other end (the right end in FIG. 5) of the first fixing portion 80.

  The connecting portion 82 has a rectangular flat plate-like horizontal piece 820 whose one end (left end in FIG. 5) is connected to the upper end of the vertical wall 803, and a rectangular shape whose upper end is connected to the other end (right end in FIG. 5) of the horizontal piece 820. It is preferable to have a flat vertical piece 821. That is, it is preferable that the connection part 82 has the horizontal piece 820 and the vertical piece 821, and is formed in L shape seeing from the front-back direction (refer FIG. 4A). Further, the vertical piece 821 has a passage hole 822 formed at substantially the center in the front-rear direction. The passage hole 822 is preferably composed of a first passage hole 822A and a second passage hole 822B. The first passage hole 822A is preferably formed in a rectangular shape in which the length dimension in the vertical direction is larger than the length dimension in the front-rear direction. The second passage hole 822B is preferably formed in a rectangular shape in which the length dimension in the front-rear direction is longer than the length dimension in the vertical direction. The second passage hole 822B is preferably formed so as to partially overlap the lower portion of the first passage hole 822A (see FIG. 5).

  The second fixing portion 81 has a rectangular flat plate shape and is configured to protrude horizontally and outward (rightward in FIG. 5) from the lower end of the vertical piece 821 of the connecting portion 82. The second fixing portion 81 is provided with a long hole-like screw insertion hole 810 at substantially the center in the front-rear direction (see FIGS. 5 and 7). The screw insertion hole 810 is connected to the passage hole 822 of the connecting portion 82 at one end (left end in FIG. 5) (see FIGS. 4A and 5). In addition, a pair of protrusions 811 are preferably provided on the upper surface of the second fixing portion 81. The pair of protrusions 811 are formed in a hemispherical shape protruding upward (see FIG. 5).

  Further, as shown in FIG. 5, the fixture 8 preferably includes a plurality (two in the illustrated example) of the first reinforcing portions 84 and a plurality (two in the illustrated example) of the second reinforcing portions 85. . The two first reinforcing portions 84 are composed of protrusions extending from the first fixing portion 80 to the second fixing portion 81 through the connecting portion 82. In addition, such a 1st reinforcement part 84 can be formed by a drawing process, for example. It is preferable that the two second reinforcing portions 85 protrude outward from the front end and the rear end of the connecting portion 82 and be bent in an L shape toward the second fixing portion 81. The two second reinforcing portions 85 are preferably configured to protrude below the second fixing portion 81.

  As shown in FIG. 4A, the mounting screw 83 is a screw with a washer built-in step. Furthermore, the mounting screw 83 incorporates two washers, a metal flat washer 833 and a metal wave washer 834. However, the flat washer 833 is incorporated between the screw portion 832 and the cylindrical portion 831, and the wave washer 834 (also referred to as a wave washer) is incorporated in the cylindrical portion 831. The diameter of the wave washer 834 is preferably larger than the diameter of the flat washer 833 and smaller than the diameter of the head 830 of the mounting screw 83. In addition, as for the attachment screw 83, it is preferable that the surrounding wall 8301 is formed in the front surface (surface in which the cross hole 8300 is formed) of the head 830 (refer FIG. 4A).

  The attachment screw 83 is attached to the second fixing portion 81 in the following procedure. That is, as shown in FIG. 4A, the operator passes the screw portion 832 through the first passage hole 822A of the connecting portion 82 and passes the plain washer 833 through the second passage hole 822B. At this time, since the length dimension in the longitudinal direction of the second passage hole 822B is larger than the diameter of the plain washer 833 and smaller than the diameter of the wave washer 834, the operator can only remove the plain washer 833. Two passage holes 822B can pass through. Then, the worker moves the attachment screw 83 from the passage hole 822 to the screw insertion hole 810 of the second fixing portion 81 (see FIGS. 4B and 5). Here, the screw insertion hole 810 is configured such that the width dimension in the short direction is larger than the diameter of the cylindrical portion 831 of the mounting screw 83 and smaller than the diameter of the plain washer 833. Accordingly, the attachment screw 83 is attached to the second fixing portion 81 without the screw portion 832 falling off from the screw insertion hole 810.

  Next, the assembly procedure of the light source unit 2 will be described. An operator inserts and accommodates the support member 4 to which the LED module 3, the power supply device 6, and the three fixtures 7 are attached into the case body 50 from one end side in the longitudinal direction. Further, the operator fixes the case main body 50 to the three fixtures 7 attached to the support member 4. That is, the operator inserts the fixing screws 53 into the screw insertion holes respectively provided at both ends and the center in the longitudinal direction of the rear wall 500 of the case main body 50, and is fixed to one screw hole 700 of each fixing piece 70. Screw 53 is screwed (see FIG. 6).

  Subsequently, the operator covers the end member 51 to which the waterproof packing 52 is attached on the end portion of the case main body 50, and then attaches the fixture 8 to which the attachment screw 83 is attached to the end member 51. That is, the operator inserts the upper part of the outer peripheral wall 512 of the end member 51 into the space between the vertical wall 803 of the first fixing part 80 and the connecting part 82, and the lower part of the pair of second reinforcing parts 85. Are inserted into the space between each protruding wall 515 and the inner peripheral surface of the cover portion 514 from above (see FIG. 6). Then, the operator inserts the screw 804 into the screw insertion hole 801 of the first fixing portion 80 of the fixture 8, and the screw 804 passes through the hole provided in the rear wall 500 of the case main body 50 to the other of the fixing pieces 70. Screwed into the screw hole 700. That is, when the fixture 8 is fixed (screwed) to the fixture 7, the end member 51 and the waterproof packing 52 are prevented from coming off by the connecting portion 82 of the fixture 8 (see FIGS. 6 and 7). Further, since the passage hole 822 of the connecting portion 82 is blocked by the first bottom wall 510 of the end member 51 (see FIG. 6), the attachment screw 83 cannot pass through the passage hole 822 and is separated from the fixture 8. There is no. The light source unit 2 is assembled as described above.

  Next, the construction procedure of the lighting fixture will be described. After attaching the instrument main body 1 to the ceiling, the operator inserts the upper part of the light source unit 2 (the part above the second fixing portion 81 of the two attachments 8) into the opening on the lower surface of the instrument main body 1. Then, the operator inserts the driver shaft into the recess 5140 of the cover portion 514 of the end member 51, and inserts it into the screw insertion hole 810 of the second fixing portion 81 through the hole 5141 provided in the bottom wall of the recess 5140. The mounting screw 83 is tightened (see FIG. 6). At this time, the operator cannot visually recognize the cross hole 8300 of the mounting screw 83 through the hole 5141. However, since the peripheral wall 8301 is provided on the front surface of the head 830 of the mounting screw 83, if the tip of the driver is placed inside the peripheral wall 8301, the operator can cross the tip of the driver with the cross even if the operator cannot see it directly. It can be easily fitted into the hole 8300. Then, when the operator turns the attachment screw 83 using a screwdriver, the attachment screw 83 is screwed into the screw hole 133 of the attachment piece 132 of the instrument body 1. As a result, the second fixing portion 81 of the fixture 8 is screwed (fixed) to the attachment piece 132 of the instrument body 1. Finally, it is preferable for the operator to cover the mouth of the concave portion 5140 exposed on the surface of the cover portion 514 with a tape or the like so as to be blindfolded. Thus, the installation of the lighting fixture is completed by attaching the light source unit 2 to the fixture main body 1 (see FIGS. 8A, 8B, and 8C).

  By the way, the fixture 8 is electrically connected to the support member 4 via the fixture 7. Therefore, in a state where the second fixing portion 81 is screwed to the attachment piece 132, the metal portion of the light source unit 2 (the support member 4, the storage case 60 of the power supply device 6, the fixture 7, the fixture 8) and the instrument body 1. Is electrically connected via the fixture 8. That is, the head portion 830 of the mounting screw 83 and the second fixing portion 81 are electrically connected via the wave washer 834, whereby the metal portion of the light source unit 2 and the instrument body 1 are electrically connected. . Here, since the screw insertion hole 810 of the second fixing portion 81 is a long hole, when there is no wave washer 834, the contact pressure between the head 830 and the second fixing portion 81 is insufficient and sufficient conduction is achieved. There is a risk that it will not be obtained (contact resistance will increase). However, in the light source unit 2 according to the present embodiment, the contact pressure between the head 830 and the second fixing portion 81 is increased by the spring force of the wave washer 834, so that compared with the case where there is no wave washer 834. Sufficient conduction can be obtained. In addition, since the screw insertion hole 810 is a long hole, the mounting screw 83 can move in the screw insertion hole 810 when the synthetic resin case body 50 expands and contracts due to heat. The stress applied to the case body 50 from the instrument body 1 can be relaxed.

  As described above, the light source unit 2 according to the present embodiment includes the light source (LED module 3), the case 5 that houses the LED module 3, and the fixture 8 for attaching the case 5 to the instrument body 1. The fixture 8 includes a first fixing portion 80 that is fixed to the case 5, a second fixing portion 81 that is fixed to the instrument body 1, and a connecting portion 82 that connects the first fixing portion 80 and the second fixing portion 81. Have The second fixing portion 81 has a screw insertion hole 810 through which the screw portion 832 of the mounting screw 83 is inserted. The attachment screw 83 is a built-in screw in which a metal washer (a plain washer 833) is incorporated in the screw portion 832. The connecting portion 82 has a passage hole 822 through which the screw portion 832 and the flat washer 833 can pass. The screw insertion hole 810 is configured to be connected to the passage hole 822.

  Moreover, the lighting fixture which concerns on this embodiment is provided with the light source unit 2 and the fixture main body 1 to which the light source unit 2 is attached.

  In the light source unit 2 and the lighting fixture according to the present embodiment, if the mounting screw 83 in which the flat washer 833 is incorporated is passed through the passage hole 822, the mounting screw 83 is inserted into the screw insertion hole 810 connected to the passage hole 822. Can be made. Therefore, in the light source unit 2 and the lighting fixture according to the present embodiment, the metal washer (flat plate) is compared with the case where the metal washer is attached to the attachment screw after the screw portion of the attachment screw is inserted into the screw insertion hole. A reduction in workability can be suppressed while using the washer 833).

  Further, in the light source unit 2 according to the present embodiment, the fixture 8 is blocked by the case 5 in a state where the first fixing portion 80 is fixed to the instrument body 1, and the screw portion 832 and the flat washer 833 are passed through the hole 822. It is preferable that it is configured not to pass through.

  If the light source unit 2 according to the present embodiment is configured as described above, it is possible to prevent the mounting screw 83 from being separated from the fixture 8 in a state where it is removed from the fixture body 1.

  Furthermore, in the light source unit 2 according to the present embodiment, the mounting screw 83 preferably has a wave washer 834 between the head 830 and the flat washer 833. The attachment screw 83 is preferably attached to the second fixing portion 81 such that the head 830 and the wave washer 834 are arranged on the same side with respect to the second fixing portion 81.

  If the light source unit 2 according to the present embodiment is configured as described above, the contact pressure between the head 830 of the mounting screw 83 and the second fixing portion 81 can be increased using the spring force of the wave washer 834. . As a result, the light source unit 2 according to this embodiment can obtain a sufficient electrical connection by electrically connecting the metal portion of the light source unit 2 and the instrument body 1.

  Further, in the light source unit 2 according to the present embodiment, the passage hole 822 is preferably formed in a size that the wave washer 834 cannot pass.

  If the light source unit 2 according to the present embodiment is configured as described above, it is difficult to erroneously place the wave washer 834 on the same side as the flat washer 833.

  In the light source unit 2 according to the present embodiment, the fixture 8 is configured to move the head 830 in a direction approaching the second fixing portion 81 when the screw portion 832 and the flat washer 833 pass through the passage hole 822. It is preferable.

  If the light source unit 2 according to the present embodiment is configured as described above, after the screw portion 832 and the flat washer 833 pass through the passage hole 822, the head 830 is moved to the second fixed portion by the spring force of the wave washer 834. Move away from 81. Therefore, the light source unit 2 according to the present embodiment can prevent the attachment screw 83 from inadvertently passing through the passage hole 822 and leaving the attachment tool 8. For example, in the light source unit 2 according to the present embodiment, when the distance between the second passage hole 822B and the second fixing portion 81 is increased, the head portion 830 is obtained when the screw portion 832 and the flat washer 833 pass through the passage hole 822. Can be moved in a direction approaching the second fixing portion 81. Alternatively, if a protrusion is provided in the vicinity of the passage hole 822 on the upper surface of the second fixing portion 81, the head washer 830 can ride on the protrusion, so that the head 830 can be moved in a direction closer to the second fixing portion 81. .

  In the light source unit 2 according to this embodiment, the mounting screw 83 preferably has a wave washer 834 between the head 830 and the flat washer 833. The attachment screw 83 is preferably attached to the second fixing portion 81 such that the wave washer 834 is disposed on the same side as the flat washer 833 with respect to the second fixing portion 81.

  If the light source unit 2 according to the present embodiment is configured as described above (see FIG. 9), the wave washer 834 is attached as compared with the case where the wave washer 834 is arranged on a different side (lower side and upper side) from the flat washer 833. The workability of the work of attaching the attachment screw 83 to the tool 8 can be improved.

  Furthermore, in the light source unit 2 according to the present embodiment, the second fixing portion 81 protrudes in the same direction (upward) as the screw portion 832 around the screw insertion hole 810 and contacts the instrument main body 1 (attachment piece 132). It is preferable to have a plurality of protrusions 811.

  If the light source unit 2 according to the present embodiment is configured as described above, when the mounting screw 83 is tightened with the plurality of protrusions 811 in contact with the mounting piece 132, the second fixing portion 81 is bent and mounted. The contact pressure between the head portion 830 of the screw 83 and the second fixing portion 81 is increased. That is, if the light source unit 2 according to the present embodiment is configured as described above, the contact pressure between the head 830 and the second fixing portion 81 can be increased without using the wave washer 834.

1 Instrument body 2 Light source unit 3 LED module (light source)
DESCRIPTION OF SYMBOLS 5 Case 8 Mounting tool 80 1st fixing | fixed part 81 2nd fixing | fixed part 82 Connection part 83 Mounting screw 810 Screw insertion hole 811 Protrusion 822 Passing hole 830 Head 832 Screw part 833 Plain washer (washer)
834 Wave washer

Claims (4)

A light source, a case containing the light source, and a fixture for attaching the case to the instrument body,
The fixture includes a first fixing part fixed to the case, a second fixing part fixed to the instrument body, and a connecting part that connects the first fixing part and the second fixing part. ,
The second fixing portion has a screw insertion hole through which a screw portion of an attachment screw is inserted. The attachment screw is a built-in screw in which a metal washer is incorporated in the screw portion. The threaded portion and the washer have a passage hole through which the thread insertion hole is configured to be connected to the passage hole ;
The mounting screw has a wave washer between the head and the washer, and the second fixing portion is arranged such that the head and the wave washer are arranged on the same side with respect to the second fixing portion. Attached to the
The passage hole, the wave washer is formed in a non-size passage source unit according to claim Rukoto.   The fixture is configured so that the screw portion and the washer cannot pass through the passage hole by being blocked by the case in a state where the first fixing portion is fixed to the instrument body. The light source unit according to claim 1. The said fixture is comprised so that the said head part may be moved to the direction which approaches the said 2nd fixing | fixed part, when the said screw part and the said washer pass the said passage hole, The said 1 or 2 is comprised. The light source unit described. An illumination fixture comprising: the light source unit according to any one of claims 1 to 3; and a fixture main body to which the light source unit is attached .

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