JP6008074B2 - lighting equipment - Google Patents

Description

  The present invention relates to a lighting fixture attached to a wiring duct.

  A wiring duct mounting luminaire generally has a plug portion for electrical and mechanical connection and a connection portion for metal mechanical connection. (For example, refer to Patent Document 1.)

Japanese Patent No. 4066618

  However, when the connection part for mechanical connection is made of metal, when it is attached to the wiring duct, it is necessary to consider the insulation distance between the conductive part (current-carrying part) in the wiring duct and the connection part. It was difficult to design.

  In addition, considering the insulation distance between the conductive part (current-carrying part) and the connection part in the wiring duct, if the connection part is made of resin, deterioration of the resin due to crazing, etc., or damage due to excessive load is considered, In the worst case, the instrument may fall.

  The lighting fixture to be attached to the wiring duct in the present invention is formed in a rectangular parallelepiped fixture main body and a plate shape, and is attached such that the plate-like plane is parallel to the bottom surface of the fixture main body and is rotatable. A resin-made protruding piece and a metal metal plate housed in the protruding piece.

  According to the present invention, the insulation distance between the conductive portion and the connection portion in the wiring duct can be maintained, and even if the resin portion of the connection portion is damaged, the lighting apparatus can be prevented from being detached from the wiring duct. it can.

1 is a perspective view showing a lighting fixture of Embodiment 1. FIG. It is a perspective view which shows the use condition of the lighting fixture of FIG. It is a disassembled perspective view which shows the state which decomposed | disassembled the lighting fixture of FIG. It is a perspective view which shows the baseplate of the lighting fixture of FIG. It is a disassembled perspective view which shows the state which decomposed | disassembled the lamp body of the lighting fixture of FIG. It is a disassembled perspective view which shows the state which decomposed | disassembled the connection part of the lighting fixture of FIG. It is the front view, side view, top view, and bottom view when the connection part of the lighting fixture of FIG. 3 is seen from six directions. It is a perspective view which shows the process of attaching the lighting fixture of FIG. 1 to a wiring duct. It is a fragmentary sectional view which shows the partial cross section of the lighting fixture of FIG. 8, and a wiring duct. It is a side view which shows the state which crazing generate | occur | produced in the connection tool of FIG. FIG. 10 is a perspective view showing another lighting fixture of the first embodiment. FIG. 6 is a perspective view showing a connection part of a lighting fixture according to a second embodiment. It is a side view which shows the state in which crazing generate | occur | produced in the connection tool of FIG. FIG. 10 is an exploded perspective view showing a connection part of a lighting fixture according to Embodiment 3. It is a disassembled perspective view which shows the state which decomposed | disassembled the connection part of FIG.

Embodiment 1 FIG.
FIG. 1 is a perspective view showing the lighting fixture of Embodiment 1, and FIG. 2 is a perspective view showing a usage state of the lighting fixture of FIG.

The luminaire 1000 includes a main body 100 and a lamp body 200 attached to the lower surface of the main body 100.
The lighting fixture 1000 is detachably attached to a wiring duct 300 installed on a ceiling or the like.

FIG. 3 is an exploded perspective view showing a state where the lighting apparatus of FIG. 1 is disassembled.
The main body 100 covers an outer case 110, an insulating material 120 attached to the outer case 110, a lighting device 130 attached on the insulating material 120 and housed in the outer case 110, and the lighting device 130. A rectangular bottom plate 140 attached to the outer case 110, a connection portion 150 rotatably attached to the center of the bottom plate 140, and a plug unit 160 attached to the outer case 110.

The outer case 110 has a box shape with an opening on one side, and protrudes from a cuboid-shaped lighting device storage portion 111 for storing the lighting device 130 and one end in the longitudinal direction of the lighting device storage portion 111, and a plug unit 160 is attached to the outer case 110. And a plug unit housing portion 112 having a U-shaped cross section.
The outer case 110 is formed of a material having high thermal conductivity made of aluminum die casting.

FIG. 4 is a perspective view showing a bottom plate of the lighting apparatus of FIG. 3.
The bottom plate 140 has screw holes 141 provided at four corners forming a rectangular shape, a rotation shaft hole 142 provided at substantially the center, and 0, 30, 60, and 90 degrees around the rotation shaft hole 142. Four positioning holes 143 provided at an angle are formed. The bottom plate 140 is attached to an opening portion of the lighting device storage unit 111 and is fixed to the lighting device storage unit 111 by a screw inserted into the screw hole 141.
The rotation shaft hole 142 is threaded by a tap or the like.

  The plug unit 160 includes a plug attachment case 161, a plug attachment plate 162 attached to the plug attachment case 161, a plug 163, a plug fastener 164 for rotatably attaching the plug 163 to the plug attachment plate 162, and a circular fastener. 165 and screws 166.

  The plug mounting case 161 has a box shape with one surface opened.

  The plug mounting plate 162 is formed with a plug mounting hole 162a to which the plug 163 is mounted. The plug attachment plate 162 is attached to the plug attachment case 161 with a screw or the like (not shown) so as to close the opening of the plug attachment case 161.

  The plug 163 is partially fitted into the plug mounting hole 162a, and the central portion is formed into a hollow rotating shaft 163a, a mechanical contact piece 163b protruding in two directions from the curved surface of the rotating shaft 163a, and the rotating shaft 163a. It has the operation part 163c provided and an electrical contact piece (not shown).

  The mechanical contact piece 163b has a function of detachably fixing the main body 100 (lighting fixture 1000) to the wiring duct 300. The mechanical contact piece 163b mechanically contacts the duct rail 300 when the operation portion 163c is operated and the rotation shaft 163a rotates.

  The electrical contact piece physically and electrically contacts the conductive portion of the wiring duct 300 and has a function of supplying power to the lighting device 130 via the internal wiring of the main body 100. The electrical contact piece mechanically and electrically contacts the duct rail 300 when the operation portion 163c is operated and the rotation shaft 163a rotates.

  The plug fastener 164 includes an insertion shaft portion 164a that is inserted into the central portion of the rotation shaft 163a, and a conical locking portion 164b that is provided on one end side of the insertion shaft portion 164a. The outer periphery of the conical bottom surface of the locking portion 164b is larger than the outer shape around the axis of the insertion shaft portion 164a.

  The circular fastener 165 has a circular shape. The circular fastener 165 abuts on the distal end of the insertion shaft portion 164a of the plug fastener 164 (the other end opposite to one end of the insertion shaft portion 164a on which the locking portion 164b is provided), and is inserted into the insertion shaft by a screw 166. It is fixed to the tip of the part 164a. By fixing the circular fastener 165 to the insertion shaft portion 164a, the locking portion 164b of the plug fastener 164 and the circular fastener 165 sandwich the plug mounting plate 162, and the plug 163 can be rotated to the plug mounting plate 162. Can be attached.

  The lamp body 200 has a “U” -shaped arm portion 210 attached to the main body 100, a rotation restricting portion 220 that determines a rotation range of the arm portion 210, and a pivotable rotation of the arm portion 210. A shaft screw portion 230 that fixes both the restriction portion 220 and the arm portion 210 to the main body 100 (the outer case 110), a lamp main body 240, and two screws 250 that fix the lamp main body 240 to the arm portion 210 in a rotatable manner. And a nut 260 screwed to the shaft screw portion 230.

FIG. 5 is an exploded perspective view showing a state in which the lamp body of the lighting fixture of FIG. 3 is disassembled.
The lamp body 240 includes a cylindrical portion 241, a heat radiating portion 242 in which a plurality of fins are formed from the cylindrical portion 241, an LED substrate 244 on which a light emitting diode 243 (hereinafter referred to as LED 243) is mounted, and the LED substrate 244. The LED board fixing tool 245 for fixing the lens part 241 to the cylindrical part 241, the lens part 246 attached to the LED board fixing tool 245, the lens fixing tool 247 for fixing the lens part 246 to the cylindrical part 241 and the lens fixing tool 247. And the three screws 248 for fixing the LED board fixture 245 to the cylindrical part 241 and the heat dissipation of the LED board 244 efficiently transferred to the cylindrical part 241 by being interposed between the LED board 244 and the cylindrical part 241. It consists of a sheet 249.

  The cylindrical portion 241 includes a circular circular attachment portion 241a to which the LED substrate 244 is attached, a hollow cylindrical inner frame portion 241b standing from the circular attachment portion 241a, and a plurality of protrusions radially projecting from the inner frame portion 241b. Connecting portion 241c and an outer frame portion 241d attached to the connecting portion 241c and covering the outer periphery of the inner frame portion 241b.

  A space portion surrounded by the inner frame portion 241b, the connecting portion 241c, and the outer frame portion 241d has a function of radiating heat generated by the LED 243 (heat transferred to the cylindrical portion 241).

  6 is an exploded perspective view showing a disassembled state of the connecting portion of the lighting fixture in FIG. 3, and FIG. 7 is a six-face view showing six faces of the connecting portion of the lighting fixture in FIG. a) is a front view of the connecting portion, FIGS. 7B and 7C are side views of the connecting portion, FIG. 7D is a rear view of the connecting portion, and FIGS. (F) is a side view of a connection part.

  The connecting portion 150 includes an operation lever portion 151, a metal plate 152 accommodated in the operation lever portion 151, a metal plate cover 153 that covers the metal plate 152, and a cylindrical and hollow rotary shaft portion 154 (hereinafter referred to as a “rotating shaft portion”). , Spacers 154 and collars 154), and screws 155 and washers 156 inserted into the rotating shaft portion 154.

The operation lever portion 151 is formed of a resin material such as polybutylene terephthalate (PBT) or polycarbonate.
The operation lever portion 151 includes a protruding piece 151a, a lever portion 151b extending from the protruding piece 151a, a convex knob portion 151c provided in the lever portion 151b, and a hemispherical convex portion corresponding to the positioning hole 143. 151d.

  In the outer shape of the protruding piece 151a, two opposing long sides a and a composite side b that connects both ends of the long side a are formed. The composite side b is composed of a short side b1 substantially perpendicular to the long side a and a tapered side b2 formed at an obtuse angle with respect to the short side b1. Therefore, the outer shape of the protruding piece 151a is a hexagonal shape. The protruding piece 151 a has a recess 151 aa for storing the metal plate 152.

  The metal plate 152 is a flat plate or rectangular metal plate, and a round hole 152a is formed at the center.

  The metal plate cover 153 includes a flat plate-shaped and rectangular pressing cover 153a and a ring-shaped screw concealing cover portion 153b standing from the vicinity of the center of the pressing cover 153a.

  The presser cover 153a is formed with a round hole 153c into which the rotary shaft portion 154 is inserted at the approximate center of the screw concealment cover portion 153b.

  The screw concealment cover portion 153b is provided to improve the appearance of the lighting fixture 1000 by surrounding the screw head of the screw 155.

  The rotating shaft portion 154 regulates the amount of tightening when the screw 155 is tightened into the rotating shaft hole 142 of the bottom surface 140 by the length of the rotating shaft portion 154 so that the connecting portion 150 can easily rotate. Is.

  The washer 156 is intended to make the screw 155 difficult to loosen and improve the slidability of the connecting portion 150 when the screw 155 is tightened into the rotation shaft hole 142 of the bottom surface 140.

  Next, after describing the structure (one example) of the wiring duct 300 to which the lighting fixture 1000 is attached, a process of attaching the lighting fixture 1000 to the wiring duct 300 will be described.

  FIG. 8 is a diagram illustrating a process of attaching a lighting fixture to a wiring duct attached to a ceiling or the like, and FIG. 8A is a perspective view illustrating a position of an operation lever portion before the lighting fixture is attached to the wiring duct. FIG.8 (b) is a perspective view which shows the position of the operation lever part in the state which attached the lighting fixture to the wiring duct.

  9 is a partial cross-sectional view showing a part of the lighting fixture of FIG. 8 and a cross section of the wiring duct, and FIG. 9A is a cross-sectional view taken along line AA of the wiring duct in FIG. 9 (b) is a cross-sectional view taken along the line BB of the wiring duct in FIG. 9 (a), and FIG. 9 (c) is a cross-sectional view taken along the line AA of the wiring duct in FIG. d) is a BB cross-sectional view of the wiring duct of FIG.

  The wiring duct 300 has, for example, a base main body portion 310 having a “U” cross-sectional shape, and two convex pieces projecting inward on both sides of the base main body portion 310 so that the cross-sectional shape is “F”. Two outer engagement portions 320 and two electric engagement portions 330 having a letter shape, and a conductive portion 340 (hereinafter referred to as a surface opposite to the outer engagement portion 320) of the electric engagement portion 330. , Also referred to as a conductive plate 340).

  The two outer engaging portions 320 are provided inside the side surface of the base main body 310 through a predetermined space. The outer engagement portion 320 contacts the bottom plate 140 of the lighting fixture 1000 to be attached, and the protruding piece 151a and the mechanical contact piece 163b engage with each other.

  Similarly to the outer engagement portion 320, the two electric engagement portions 330 are provided inside the side surface of the base main body portion 310 through a predetermined space. The electrical engagement portion 330 is in contact with an electrical contact piece.

  The connecting portion 150 and the plug 163 of the bottom plate 140 of the luminaire 1000 are inserted into the wiring duct 300 between the two outer engagement portions 320 and the two electric engagement portions 330, and the bottom plate 140 is inserted into the two outer engagement portions. 320 is contacted.

  Next, by operating the lever portion 151b of the connecting portion 150 to rotate the protruding piece 151a, the protruding piece 151a comes into contact with and fits into the two outer engagement portions 320.

  Since the connection part 150 is attached to the substantially center part of the bottom plate 140, even if the load of the lamp 200 is applied to one end side of the main body 100, the other end of the main body 100 (bottom plate 140) is used with the connection part 150 as a fulcrum. Since the side is pressed against and contacts the wiring duct, it is possible to maintain the state in which the bottom plate 140 is in contact with the wiring duct 300 (outer engagement portion 320).

Finally, when the operation portion 163c of the plug 163 is operated to rotate the mechanical contact piece 163b, the mechanical protrusion piece 163b comes into contact with and fits into the two outer engagement portions 320, and the electrical contact piece Comes into contact with the conductive portion 340 of the electrical engagement portion 330 and is conducted.
Thus, the lighting fixture 1000 is attached to the wiring duct 300.

  Therefore, since the metal plate 152 is covered with the metal plate cover 153 made of a resin material, the lighting fixture 1000 is attached to the wiring duct 300, and the wiring piece 150a is also connected to the outer engagement portion 320. The insulating (space) distance between the duct 300 and the conductive plate 340 can be maintained.

  Next, the crazing phenomenon (hereinafter also referred to as crazing cracking) will be described. After that, oils or solvents adhere to the lighting fixture 1000 (connection portion 150) attached to the wiring duct 300, and the crazing phenomenon occurs in the connection portion 150. The case where it occurs will be described.

  FIG. 10 is a side view showing a state in which a crazing phenomenon has occurred in the connection portion of FIG. FIG. 10 shows a state in which the crazing phenomenon occurs and the resin material of the connecting portion 150 is cracked (α portion in the figure).

  When the lighting fixture 1000 is installed in a use environment such as a factory or a store with a lot of oils and solvents, vaporized oils and solvents may adhere to the lighting fixture 1000.

  If oil or grease adheres to a portion where stress is applied when molding a resin material and there is residual stress (or a portion where excessive stress is applied when the lighting fixture 1000 is installed), that portion (oil or fat or Cracks start from the part where the solvent is attached to the residual stress or the part where the excessive stress is applied. This crack causes a crazing phenomenon that becomes gradually deeper and the resin material may be broken.

  When the plug 163 and the connection portion 150 are formed of only a resin material, if this crazing phenomenon occurs in the resin material of the plug 163 and the connection portion 150, the resin material of the plug 163 and the connection portion 150 breaks, and the worst In such a case, the luminaire 1000 may come off (fall) from the wiring duct 300.

However, the connecting portion 150 has a metal plate 152 sandwiched between the protruding piece 151a and the metal plate cover 153 inside.
Therefore, even if a crazing phenomenon occurs in the resin material (for example, the protruding piece 151a and the metal plate cover 153) of the connection portion 150 (α portion in FIG. 10) and the resin material is broken, the metal plate 152 is connected to the wiring duct 300 ( It is caught by the outer shell engaging portion 320).

  A rotation shaft portion 154 and a screw 155 are inserted into the round hole 152 a of the metal plate 152, and the screw 155 is screwed to the bottom surface 140.

  Therefore, when the metal plate 152 is caught by the outer shell engaging portion 320, the state where the bottom plate 140 is brought into contact with the outer shell engaging portion 320 via the screw 155 can be maintained, and the luminaire 1000 is detached from the wiring duct 300. Can be prevented from falling.

  In this embodiment, the case where the rotary shaft hole 142 is threaded is described. However, the rotary shaft hole 142a is formed without threading, and the screw 155 is inserted into the rotary shaft hole 142a. The screw 155 may be fixed with a nut or the like.

  In the present embodiment, the case where the metal plate 152 is inserted into the recess 151aa of the protruding piece 151a and pressed by the pressing cover 153a has been described. However, the metal plate 152 is a resin material of the protruding piece 151a or the metal plate cover 153. It may be integrally molded (so-called insert molding) so as to be covered.

  Further, in the present embodiment, the case where the connection portion 150 is provided in the approximate center of the bottom plate 140 has been described. However, the connection portion 150 may be provided so as to be positioned closer to the center of gravity of the lighting fixture 1000.

  Specifically, for example, as in a lighting fixture 1000a shown in FIG. 11, the lamp 200 is provided from the substantially center (point A in FIG. 11) to the end side where the lamp body 200 (arm part 210) is provided. .

  When the lighting fixture 1000a is attached to the wiring duct 300, the connection portion 150 (metal plate 152) serves as a fulcrum, and the bottom surface 140 opposite to the one side to which the lamp body 200 is attached is pressed against the outer engagement portion 320. To make contact.

  In this state, if the connection portion 150 is disposed near the center of gravity of the lighting fixture 1000a, the contact force with which the bottom surface 140 is pressed against the outer engagement portion 320 can be reduced according to the lever principle.

  That is, due to the weight of the lamp 200, the gap between the bottom surface 140 on the side to which the lamp 200 is attached and the outer engagement portion 310 tends to increase with the connection portion 150 as a fulcrum, but the connection portion 150 is close to the center of gravity of the lighting fixture 1000a. With the arrangement, even if the contact force with which the bottom surface 140 is pressed against the outer engagement portion 320 is small, the gap between the bottom surface 140 on the side where the lamp 200 is attached and the outer engagement portion 310 can be reduced. The instrument 1000a can be attached in a stable state by the wiring duct 300.

  Therefore, even when the crazing phenomenon occurs in the connection part 150 and the resin material is cracked, the metal plate 152 can serve as a fulcrum and the lighting fixture 1000a can be maintained attached to the wiring duct 300. .

Embodiment 2. FIG.
The present embodiment is a modification of the connecting portion of the first embodiment.
In the present embodiment, the same components as those in the first embodiment are denoted by the same reference numerals and description thereof is omitted. Moreover, since the external shape of the lighting fixture in this Embodiment is the same as that of the lighting fixture of Embodiment 1, illustration is abbreviate | omitted and it demonstrates in detail about the connection part different from Embodiment 1. FIG.

  The lighting fixture 1000b includes a main body 100a and a lamp body 200 attached to the lower surface of the main body 100a.

  The main body 100 a covers the outer case 110, the insulating material 120 attached to the outer case 110, the lighting device 130 attached on the insulating material 120 and housed in the outer case 110, and the lighting device 130. A rectangular bottom plate 140 attached to the outer case 110, a connecting portion 150 a rotatably attached to the substantially center of the bottom plate 140, and a plug unit 160 attached to the outer case 110.

  12A and 12B are perspective views illustrating a connection portion of the lighting fixture according to the second embodiment. FIG. 12A is a perspective view of the connection portion, and FIG. 12B is a connection portion of FIG. A perspective view showing a metal plate to be insert-molded, FIG. 12C is a cross-sectional perspective view showing a CC cross section of the connecting portion in FIG.

  The connecting portion 150a is inserted into the operating lever portion 157, a metal lever 170 that is insert-molded in the operating lever portion 157, a cylindrical and hollow rotating shaft portion 154 (not shown), and the rotating shaft portion 154. A screw 155 (not shown) and a washer 156 (not shown) are provided.

  The metal lever 170 includes a metal plate 171, a connecting metal plate 172 formed by being bent at a substantially right angle from the metal plate 171, and an operation metal formed by being bent at a substantially right angle from the connecting metal plate 172. It consists of a plate 173.

  The metal lever 170 is molded (insert molding) so as to be covered with the resin material of the operation lever portion 157, the metal plate 171 and the connecting metal plate 172 are covered with the protruding piece 151a, and the operation metal plate 173 is the lever portion. 151b is covered.

The metal plate 171 corresponds to the metal plate 152 of the first embodiment and has a similar function.
The connection metal plate 172 has a function of physically connecting the metal plate 171 and the operation metal plate 173.
The operation metal plate 173 is formed in a “<” shape, and one end side is connected to the connection metal plate 172.

In the present embodiment, the process of attaching the lighting fixture 1000b to the wiring duct 300 is the same as that in the first embodiment, and thus the description thereof is omitted.
Further, the case where the crazing phenomenon occurs in the protruding piece 151a of the connecting portion 150a is the same as that of the first embodiment, and thus the description thereof is omitted.

  Next, a case where oil and fat or a solvent adheres to the lighting fixture 1000b (connection portion 150a) attached to the wiring duct 300 and a crazing phenomenon occurs at the joint portion between the protruding piece 151a and the lever portion 151b will be described.

  FIG. 13 is a side view showing a case where a crazing phenomenon occurs in the operation lever portion of the connection portion in FIG. FIG. 13 shows a state in which the crazing phenomenon occurs and the resin material between the protruding piece 151a and the lever portion 151b is cracked (β portion in the figure).

  Even if the crazing phenomenon causes a crack (break) at the joint portion (β portion) between the protruding piece 151a and the lever portion 151b, the protruding piece 151a is engaged with the wiring duct 300 (outer engagement portion 310). Because of this state, the state where the lighting fixture 1000b is attached to the wiring duct 300 is maintained.

  However, when the crazing phenomenon causes a crack at the joint between the protruding piece 151a and the lever portion 151b, and the lever portion 151b is operated when this crack is generated, the crack is further deepened only by the resin material portion. There is.

  Therefore, when the connection part 150 is formed only of the resin material, the crack is deepened by operating the lever part 151b, and the protruding piece 151a cannot be rotated. In the worst case, the lever part 151b is It may break.

  However, since the metal lever 170 is insert-molded in the operation portion 150a of this embodiment, even if the resin material of the operation lever portion 157 breaks due to the crazing phenomenon, the metal lever 170 does not break due to the crazing phenomenon. Since the metal lever 170 is integrally formed with the metal plate 171, the connecting metal plate 172, and the operation metal plate 173, the protruding piece 151a can be rotated.

  Thus, since the connection part 150a has the metal lever 170 (the metal plate 171, the connection metal plate 172, the operation metal plate 173), even if the resin material of the connection part 150a is broken by the crazing phenomenon, the illumination is performed. The instrument 1000b can be easily removed from the wiring duct 300.

  As described above, the same effects as those of the first embodiment can be obtained, and even when the resin material such as the joint between the protruding piece 151a and the lever portion 151b is broken due to the crazing phenomenon or the like. The operation metal plate 173 can be operated, and the metal plate 171 can be rotated via the connection metal plate 172.

  In the present embodiment, the connecting portion 150b is formed by insert molding so that the rotating shaft 151, the protruding piece 151a, the lever portion 151b, the knob portion 151c, the metal plate 171, the connecting metal plate 172, and the operation metal plate 173 are integrated. Although the case of forming has been described, it may be constituted by separate parts, or may be partially integrally formed.

Embodiment 3 FIG.
The present embodiment is a modification of the connecting portion of the first and second embodiments.
In the present embodiment, the same components as those in the first and second embodiments are denoted by the same reference numerals and description thereof is omitted. Moreover, since the external shape of the lighting fixture in this Embodiment is the same as that of the lighting fixture of Embodiment 1, illustration is abbreviate | omitted and it demonstrates in detail about the connection part different from Embodiment 1 and Embodiment 2. FIG.

  The lighting fixture 1000c includes a main body 100b and a lamp body 200 attached to the lower surface of the main body 100b.

  The main body 100 b covers the outer case 110, the insulating material 120 attached to the outer case 110, the lighting device 130 attached on the insulating material 120 and accommodated in the outer case 110, and the lighting device 130. A rectangular bottom plate 140 attached to the outer case 110, a connecting portion 150 b rotatably attached to substantially the center of the bottom plate 140, and a plug unit 160 attached to the outer case 110.

  FIG. 14 is a perspective view showing a connection portion of the lighting fixture of the present embodiment, FIG. 14 (a) is a perspective view of the connection portion, and FIG. 14 (b) is a connection of FIG. 14 (a). 14C is a perspective view showing a metal plate for operation to be insert-molded in the part, FIG. 14C is a cross-sectional perspective view showing a DD cross section of the connection part in FIG. 14A, and FIG. It is a disassembled perspective view which shows the state which the connection part of 14 (a) decomposed | disassembled.

  The connection portion 150b includes an operation lever portion 158, a metal plate 152b accommodated in the operation lever portion 158, a metal plate cover 159 that covers the metal plate 152b, and a hexagonal column-shaped and hollow rotation shaft portion 154a (hereinafter referred to as a “rotating shaft portion”). , A spacer 154a and a collar 154a), a screw 155 inserted into the rotating shaft portion 154a, a washer 156, and an operation metal plate 174 insert-molded into the operation lever portion 151.

  The operation lever portion 151 is formed of a resin such as polybutylene terephthalate (PBT) or polycarbonate.

  The operation lever portion 158 includes a protruding piece 151e, a lever portion 151b extending from the protruding piece 151e, a convex knob portion 151c provided in the lever portion 151b, and a hemispherical convex portion corresponding to the positioning hole 143. 151d (not shown) and an operation metal plate 174 that is insert-molded so as to be covered with the lever portion 151b.

  The metal plate 152b is a flat plate or rectangular metal plate, and a hexagonal hole 152c is formed at the center.

  The operation metal plate 174 has a “<” shape and is formed with a hexagonal hole 174 a on one end side.

  The metal plate cover 159 has a flat plate-shaped and rectangular pressing cover 153d and a ring-shaped screw concealing cover portion 153b erected from the vicinity of the center of the pressing cover 153d.

  The holding cover 153d is formed with a hexagonal hole 153e into which the rotary shaft portion 154a is inserted substantially at the center of the screw concealing cover portion 153b.

  When the screw 155 is tightened into the rotation shaft hole 142 of the bottom surface 140, the rotation shaft portion 154a is restricted to a tightening amount up to the length of the rotation shaft portion 154a, so that the connection portion 150 can be easily rotated. It is.

  The rotating shaft portion 154a is inserted into the hexagonal hole 152c of the metal plate 152b and the hexagonal hole 174a of the operation metal plate 174. Therefore, when the operation metal plate 174 is movable, the metal plate 152b can be moved via the rotation shaft portion 154a.

  Since the process of attaching the lighting fixture 1000c to the wiring duct 300 is the same as the process of attaching the lighting fixture 1000 of Embodiment 1 to the wiring duct 300, the description thereof is omitted.

  In addition, when oil and fat or a solvent adheres to the lighting fixture 1000c (connection portion 150b) attached to the wiring duct 300 and crazing cracks occur in the connection portion 150b, the same as in the first and second embodiments. Therefore, explanation is omitted.

  In this embodiment, since the connecting portion 150b includes the protruding piece 151e, the lever portion 151b, the metal plate 152b, the rotating shaft portion 154a, and the operation metal plate 174, the same effects as those of the first or second embodiment. Can be obtained.

  1000, 1000a, 1000b, 1000c Luminaire, 100, 100a, 100b body, 110 outer case, 111 lighting device storage, 112 plug unit storage, 120 insulation material, 130 lighting device, 140, 140a bottom plate, 141 screw hole, 142, 142a Rotating shaft hole, 143 Positioning hole, 150, 150a, 150b Connection part, 151 Operation lever part, 151a, 151e Protruding piece, 151aa Recessed part, 151b Lever part, 151c Knob part, 151d Convex part, 152, 152b Metal plate , 152a Round hole, 152c Hexagonal hole, 153, 159 Metal plate cover, 153a, 153d Holding cover, 153b Screw concealed cover part, 153c Screw hole, 153e Hexagonal hole, 154, 154a Rotating shaft part, 155 156 Washer, 157 Operation lever part, 160 Plug unit, 161 Plug attachment case, 162 Plug attachment plate, 162a Plug attachment hole, 163 Plug, 163a Rotating shaft, 163b Mechanical contact piece, 163c Operation part, 164 Plug fastener, 164a Insertion shaft portion, 164b Locking portion, 165 Circular fastener, 166 Screw, 170 Metal lever, 171 Metal plate, 172 Metal plate for connection, 173, 174 Metal plate for operation, 174a Hexagonal hole, 200 Lamp body, 210 Arm Part, 220 rotation restricting part, 230 shaft screw part, 240 lamp body, 241 cylindrical part, 241a circular mounting part, 241b inner frame part, 241c connecting part, 241d outer frame part, 242 heat radiation part, 243 light emitting diode (LED) 244 LED substrate, 24 5 LED board fixing tool, 246 lens part, 247 lens fixing tool, 248 screw, 249 heat dissipation sheet, 250 screw, 260 nut, 300 wiring duct, 310 base body part, 320 outer engagement part, 330 electrical engagement part, 340 Conductive part (conductive plate).

Claims (6)

In a lighting fixture that is provided with an opening and is attached to a wiring duct having a conductive portion inside,
A rectangular parallelepiped instrument body;
By being rotationally attached to the surface of the instrument main body facing the opening and being inserted inside the wiring duct from the opening, and rotating in a direction parallel to the surface facing the opening. A resin-made protruding piece that engages with an outer engagement portion provided on both sides of the opening;
In the state where the protruding piece is engaged with the outer shell engaging portion, a metal metal plate that is housed inside the protruding piece so as to be disposed on both sides of the opening,
The lighting fixture characterized by having. A lever portion attached to the projecting piece and rotating the projecting piece;
A metal operation metal plate that is housed in the lever portion and formed integrally with the metal plate,
The lighting fixture according to claim 1, comprising: A lever portion attached to the projecting piece and rotating the projecting piece;
A metal operation metal plate that is housed in the lever portion and connected via a rotation shaft portion that serves as an axis of rotation of the metal plate and the protruding piece,
The lighting fixture according to claim 1, comprising: The projecting pieces, one of claims 1 to 3, characterized in that arranged in the center of gravity closer to the luminaire from substantially the center of the substantially center or the opening surface facing the opening surface opposed to The lighting fixture according to one item. 5. The lamp according to claim 1, further comprising: a lamp that is attached to one end side of the instrument main body in a longitudinal direction and to a face that faces the face that faces the opening to which the protruding piece is attached. The luminaire described. It has a plug that is attached to one end in the longitudinal direction of the instrument body and the same surface as the surface facing the opening to which the protruding piece is attached, and that is locked to the wiring duct and that is fed from the wiring duct. The lighting fixture according to any one of claims 1 to 5, characterized in that: