Lighting fixtures

Abstract

To provide a lighting device which achieves downsizing of a plug and includes a design which blends in a space.SOLUTION: A lighting device 900 includes a plug 100 which is attached to a lighting duct. The plug 100 includes: a contact piece 4 electrically connected to the lighting duct; a wiring electrically connected to the contact piece 4; and a cylinder part. At least a part of a connection portion between the contact piece 4 and the wiring is disposed in a portion, which is located in the lighting duct, in the cylinder part when the plug 100 is attached to the lighting duct.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a lighting fixture that can be attached to a lighting duct or the like. [Background technology]

[0002] Lighting fixtures that can be detachably attached to lighting ducts have been used in the past. Patent Document 1 discloses a lighting fixture related to a lighting duct and a plug attached thereto. Hereinafter, the lighting duct may be referred to as a duct rail, a duct, or a rail. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2005-346961 A Summary of the Invention [Problem to be solved by the invention]

[0004] When installing a lighting fixture in a lighting duct, a plug (part of the lighting fixture) is often used. This plug needs to be a certain size because it needs to have functions such as wiring, conductive metal fittings, an installation mechanism, and holding the light source. However, if the plug is too large, it stands out and does not blend in with the architectural space, which is inconvenient.

[0005] The present invention has been made in consideration of the above problems, and aims to provide a lighting fixture with a compact plug and a design (appearance) that blends in with the space. [Means for solving the problem]

[0006] In order to solve the above problems, the lighting fixture of the present invention is a lighting fixture having a plug that can be attached to a lighting duct, the plug having a contactor that electrically connects to the lighting duct, wiring electrically connected to the contactor, and a tubular portion, and at least a part of the connection between the contactor and the wiring is arranged in a portion of the tubular portion that is located within the lighting duct when the plug is attached to the lighting duct. Effect of the Invention

[0007] The above-described configuration has the effect of making it possible to provide a lighting fixture with a design that blends in with the space by miniaturizing the plug to be attached to the lighting duct while providing the necessary functions such as wiring, conductive fittings, and an installation mechanism. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a perspective view of a lighting device 900 according to a first embodiment of the present invention, as viewed from the upper right. [Diagram 2] 1 is a top view of the plug 100 according to the first embodiment of the present invention (showing cross sections A and B). [Diagram 3] FIG. 2 is a right side view of the lighting fixture 900 according to the first embodiment of the present invention attached to a lighting duct D. [Figure 4] 1A is a front view of a lighting duct D. FIG. 1B is a front view of the periphery of a plug 100 in a state in which a lighting fixture 900 according to a first embodiment of the present invention is attached to a lighting duct D. [Diagram 5] FIG. 1 is a front perspective view of a plug 100 according to a first embodiment of the present invention with a base 1, a lever 3, a spring 7, and screws removed. [Figure 6] FIG. 1(a) is a rear perspective view of the plug 100 according to the first embodiment of the present invention with a base 2 and a nut 6 removed. FIG. 1(b) is a cross-sectional side view showing a state in which a contact 4 is held by a base B in the plug 100 according to the first embodiment of the present invention. [Figure 7]1A is a top perspective view of a contact 4 according to a first embodiment of the present invention, and FIG. 1B is a top perspective view of the contact 4 with an electric wire 8 connected thereto. [Figure 8] 1 is a cross-sectional view taken along line A of a plug 100 according to a first embodiment of the present invention. [Figure 9] 1A is a top perspective view of the base 1 and the lever 3 according to the first embodiment of the present invention before assembly, (b) is a cross-sectional view of the same, and (c) is a cross-sectional view of the base 1 and the lever 3 after assembly. [Figure 10] 2 is a cross-sectional view taken along line B of the plug 100 according to the first embodiment of the present invention. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] A lighting fixture 1 according to an embodiment of the present invention will be described below with reference to the drawings. Unless otherwise specified, directions are described according to up, down, left and right in each drawing, with the side where the lever 3 is arranged as shown by the outline arrow in Figures 1 and 2 being the front of the lighting fixture. Also, the lighting duct is assumed to be installed on the horizontal surface of the ceiling.

[0010] <1. First embodiment> A lighting device 900 according to a first embodiment of the present invention will now be described with reference to the drawings. As an example, lighting fixture 900 is attached to lighting duct D as shown in Fig. 3, and illuminates the floor surface side. Lighting fixture 900 includes plug 100 that engages with lighting duct D as shown in Fig. 1. Here, plug 100 is made smaller than conventional plugs, which allows lighting fixture 900 to achieve a design that blends in with the space. Hereinafter, first, the lighting duct D will be described, and then the lighting fixture 900 will be described in detail.

[0011] <1.1. Lighting Duct D> A lighting duct is a long rail-shaped component that is generally installed directly on a ceiling or suspended from a ceiling to install electrical equipment such as lighting fixtures. As shown in Figures 4(a) and 4(b), a lighting duct D has a rail portion Dr, a conductor Dc, and an opening De. The rail portion Dr is a long rail-shaped member for engaging the lighting fixture 1, and is generally made of resin. The connection conductor Dc is a conductor for transmitting power supplied from the outside to the lighting fixture, and is arranged in a long shape along the rail shape of the lighting duct. An opening De for installing the lighting fixture 1 is arranged on the underside of the lighting duct D.

[0012] <1.2. Lighting fixtures 900> The lighting fixture 900 includes a fixture body 800 and a plug 100, as shown in FIGS. <1.2.1. Instrument body 800> The fixture body 800 is a typical spotlight, and includes a lamp body 81 and an arm 82. The lamp body 81 is a cylindrical metal housing that includes a light source, etc. The arm 82 is a cylindrical metal housing, and includes wiring in the cylindrical portion for supplying power to the light source.

[0013] <1.2.2. Plug 100> The plug 100 is a part that is attached to the lighting duct D, and includes a base B, a lever 3, contacts 4L and 4R, and screws 5L and 5R. The base B also includes mounting claws 111L and 111R (hereinafter collectively referred to as "mounting claws 111"). The plug 100 also includes a nut 6, a spring 7, a wire 8, and a solder 9, as shown in Figures 5 to 10. Hereinafter, the contacts 4L and 4R may be referred to as contacts 4, and the screws 5L and 5R may be referred to as screws 5. As shown in Fig. 4(b), the contact 4 of the plug 100 of the lighting fixture 900 is attached so as to be electrically connected to the conductor Dc. At this time, the mounting claw portion 111 is engaged with and positioned on the rail portion Dr, so that the lighting fixture 900 is held in the lighting duct D without falling.

[0014] In addition, the widthwise end of the lever 3 shown in Figure 6 (a), i.e., the end of the runner portion 36 of the lever 3, is positioned to fit within the widthwise direction of the opening of the lighting duct D, thereby preventing the plug 100 from accidentally rotating horizontally, causing the mounting claw portion 111 to come off the rail portion Dr, and causing the lighting fixture 900 to fall. The screw 5 is a component that, when fastened with a nut 6, assembles and fixes the base 1 and the base 2 together. As shown in FIG. 10, the spring 7 is a part that is disposed between the lever 3 and the base 1, and holds the upper surface of the lever 3 so that it protrudes from the upper surface of the base 1 by its elastic force. The wiring 8 is an electric wire that is electrically connected to the contact 4 by solder 9 and passes through the wiring hole WH from a power source to supply power to the lamp unit 800. The portion where the wiring 8 and the contact 4 are electrically connected by the solder 9 is sometimes referred to as a solder connection portion 9c.

[0015] <1.2.2.1. Base B> The base B is a resin housing, and as shown in Figures 5, 6(a) and 8, houses the wires 8, the contacts 4, etc. Also, it includes a cylindrical portion Bc, a wire housing portion Wc, a holding portion housing portion Hc, a solder housing portion Sc and a wiring hole WH for housing the wires 8, the contacts 4, etc. The cylindrical portion Bc is a cylindrical portion above the top surface portion Bu, and includes a solder receiving portion Sc, as shown in Fig. 8. The solder receiving portion Sc is a portion that receives the solder connection portion 9c, as shown in Fig. 8. 8, the wire housing Wc is a portion for housing the wires 8, and is disposed below the upper surface portion Bu. The wire hole WH is a hole through which the wires 8 from the lamp body portion pass. The holding portion accommodating portion Hc is a portion that accommodates the holding portion 43 of the contact 4. In this embodiment, as shown in Fig. 8, most of it is located below the upper surface portion Bu, but it may overlap with the cylindrical portion Bc.

[0016] The base B is configured to be separable into a base 1 shown in FIG. 5 and a base 2 shown in FIG. 6(a), and includes mounting claw portions 111L and 111R, and an upper cover portion 22, as shown in FIG. The mounting claw portion 111L and the mounting claw portion 111R are substantially rectangular parallelepiped portions that engage with the rail portion Dr to prevent the plug 100 from falling off the lighting duct Dc. When the base B is separated into the base 1 and the base 2, the mounting claw portion 111L separates into the mounting claw element portion 11L on the base 1 side and the mounting claw element portion 21L on the base 2 side, and the mounting claw portion 111R separates into the mounting claw element portion 11R on the base 1 side and the mounting claw element portion 21R on the base 2 side. The upper cover 22 is a flat plate-like portion disposed above the contact 4 to protect the contact 4 and ensure an electrical insulation distance at the top. When the base B is separated into the base 1 and the base 2, the upper cover 22 is located on the base 2 side. The bases 1 and 2 are molded to fit together, and after assembly, are fixed with screws 5 and nuts 6. The screws 5 are disposed on the upper surface side of the plug 100. In this way, when the lighting fixture 1 is attached to the lighting duct D, the screws 5 are not visible from the outside, improving the appearance of the lighting fixture 1. The internal structure of base B will be described in detail later.

[0017] <1.2.2.2. Lever 3> The lever 3 is a resin member that is operated to release the horizontal rotation prevention state of the plug 100 when removing the lighting fixture 900 from the lighting duct D. The lever 3 includes a runner portion 36, a spring holding portion 37, and a hook portion 38, as shown in Figs. 9(a), (b), (c) and 10. The runner portion 36 is a convex portion that engages with the rail portion 16 and allows the lever 3 to move smoothly in the vertical direction without slipping. The spring holding portion 37 is a convex portion that protrudes into the spring 7 and holds the spring 7, as shown in Fig. 10. The hook portion 38 is a hook-shaped portion that engages with the hook portion 18 of the base 1 and prevents the lever 3 from slipping off the base 1.

[0018] <1.2.2.3.Contact 4> The contact 4 is a metal member having electrical conductivity for supplying power to the fixture body 800 by coming into contact with the conductor Dc when the lighting fixture 900 is attached to the lighting duct D, and is formed by bending a plate-shaped member having spring properties. As shown in Figs. 7(a) and (b), the contact 4 has a conductor connection portion 41, an insertion hole 42, a holding portion 43, and flat plate portions 41P, 42P, and 43P.

[0019] The conductor connecting portion 41 is a portion that comes into contact with the conductor Dc, the insertion hole 42 is a hole for connecting wiring, and the holding portion 43 is a recess provided on the outer edge of the contact 4 and is a portion to be held with respect to the base. The flat portion 41P is a flat portion that includes the conductor connecting portion 41. The flat portion 42P is a flat portion in which the insertion hole 42 is disposed. The flat portion 43P is a flat portion in which the holding portion 43 is disposed. In this embodiment, the contact 4 and the wiring 8 are electrically connected by inserting the wiring 8 into the insertion hole 42, but the method of electrical connection is not limited to this. It is sufficient that the wiring 8 is electrically connected to any one of the flat plate portions.

[0020] <1.2.3. Internal structure of base B> As described above, the base B is configured to be separable into the base 1 and the base 2. 6, 9(a), (b), (c), and 10, the base 1 includes mounting claw element portions 11L and 11R, a tension stop portion 15, a contact holder 14, a rail portion 16, a spring holder 17, and a hook portion 18. Hereinafter, the mounting claw element portions 11L and 11R may be referred to as mounting claw element portions 11. As shown in Figure 10, the tension stopper 15 is a convex portion that prevents the tensile stress applied to the wiring 8 from being applied to the solder connection portion 9c, and performs the tension stopper function by clamping the wiring 8 between it and the tension stopper 25 provided on the base 2. As shown in FIGS. 6( a ) and 6 ( b ), the contact holder 14 is a convex portion that fits into and engages with a recess in the holder 43 , whereby the contact 4 is held by the base 1 . As shown in FIG. 9(a), the rail portion 16 is a concave rail portion that fits with the runner portion 36 and allows the lever 3 to move smoothly relative to the base 1 without slipping. As shown in FIG. 9(b) and FIG. 10, the spring holding portion 17 is a convex portion that protrudes into the inside of the spring 7 to hold the spring 7. As shown in FIGS. 9(b) and 9(c), the hook portion 18 is a hook-shaped portion that engages with the hook portion 38 of the lever 3 to hold the lever 3 to the base 1.

[0021] 5 and 8, the base 2 includes mounting claw element portions 21L and 21R, an upper cover portion 22, an insulating plate portion 23, a contact holder portion 24, a tension stopper portion 25, and a fulcrum portion 29u and a fulcrum portion 29l. Hereinafter, the mounting claw element portions 21L and 21R may be referred to as mounting claw element portions 21, and the fulcrum portions 29u and 29l may be referred to as fulcrum portion 29. The mounting claw element portion 21 is a substantially rectangular parallelepiped portion that engages with the rail portion Dr so that the plug 100 does not fall off the lighting duct Dc. The insulating plate portion 23 is a flat plate portion for ensuring electrical insulation between the two contacts 4 . 8, the contact holding portion 24 is a convex portion that fits into and engages with a recess in the holding portion 43, thereby holding the contact 4 on the base 1. The engagement between the contact holding portion 24 and the holding portion 43 is similar to that between the contact holding portion 14 and the holding portion 43 shown in FIG. As shown in FIG. 10, tension stopper 25 is a convex portion that prevents the tensile stress applied to wiring 8 from being applied to solder connection portion 9c, and sandwiches wiring 8 between tension stopper 15 and tension stopper 25. As shown in FIG. 8, the supporting point portion 29 is a convex portion that serves as a supporting point for receiving the stress applied to the contact 4 when the lighting fixture 1 is attached to the lighting duct D.

[0022] As shown in Figures 5 and 6, the base B accommodates the wiring 8, solder 9, and nut 6 inside. The wiring 8 is an electrical wiring from the device body, and is electrically connected to the contact 4 by the solder 9. The electrical connection between the solder 9 and the contact 4 is achieved by inserting the conductor of the wiring 8 into the insertion hole 42 and electrically connecting with the solder, as shown in Figures 7(a) and (b). The solder 9 is filleted in a truncated cone shape. This portion is sometimes referred to as the solder connection portion 9c.

[0023] As shown in FIG. 8, the two contacts 4 are arranged on the base 2 facing each other with the holding portion 43 on the lower side and the conductor connecting portion 41 on the outer side. 6(a) and 8, the holding portion 43 is disposed in the holding portion housing portion Hc of the base B, and is held such that the convex portions of the contact holding portions 14 and 12 are engaged with the concave portions of the holding portion 43. Therefore, the contact 4 does not shift in the vertical direction.

[0024] As shown in FIGS. 5, 6(a) and 8, the solder receiving portion Sc is disposed in a portion where the inner wall of the tube portion Bc is bent outward, and the solder connection portion 9c is disposed in the solder receiving portion Sc. Here, the mounting claw portion 111 (i.e., the mounting claw element portions 11 and 21) is disposed so as to protrude outward from the tubular portion Bc, and its base end is connected to the solder receiving portion Sc. This state can also be said to be disposed on the back side of the mounting claw portion 111. The shape of the solder receiving portion Sc is molded so as to generally follow the truncated cone-shaped fillet of the solder connection portion 9c. Furthermore, the solder receiving portion Sc is molded so as to be bent outward with respect to a surface extending upward including a substantially vertical surface (Hp in FIG. 8) that forms the holder receiving portion Hc. In this way, by arranging the solder accommodation section Sc for accommodating the solder connection section 9c on the back side of the mounting claw element section 11, essentially the mounting claw section 111, the height direction of the plug (h shown in FIG. 8) can be made lower, contributing to a smaller plug size, compared to the commonly used arrangement in which the connection section between the contact and the wiring is arranged in the wiring accommodation section Wc below the base B. In this case, when the plug 100 is attached to the lighting duct D, at least a part of the solder connection section 9c (i.e., the connection section between the contact 4 and the wiring 8) is located inside the lighting duct D in the cylindrical section Bc. In this embodiment, the solder accommodation portion Sc is disposed at a portion where the inner wall of the tube portion Bc is bent outward, and the solder connection portion 9c is disposed at that portion, but it is not necessary to dispose the solder connection portion 9c at the portion where the inner wall of the tube portion Bc is bent outward, and it is sufficient if at least a part of the solder connection portion 9c is disposed on the back surface side of the base end of the mounting claw portion 111. As an example, a wiring connection portion may be provided that is directly welded to the contact without passing the wiring through the wiring insertion hole, and the wiring connection portion may be disposed on the back surface side of the mounting claw portion without bending the inner wall of the tube portion outward.

[0025] 7(a) and (b), the contact 4 is bent such that the flat plate portion 41P is bent in a direction substantially perpendicular to the flat plate portion 43P. The flat plate portion 42P is bent at an acute angle to the flat plate portion 41P, and at an obtuse angle to the flat plate portion 43P. By bending the contacts 4 in this manner, when the two contacts 4 are arranged on the base B facing each other with the conductor connection portions 41 on the outside, the solder connection portion 9c and the solder accommodating portion Sc can be arranged further inside the base B. By arranging them in this manner, as shown in Fig. 8, the mounting claw element portion 21 of the base B, essentially the outer wall thickness around the mounting claw portion 111, can be ensured, and they can be efficiently arranged on the back surface of the mounting claw portion 111 (the inner surface side of the base B), and the height of the plug (h shown in Fig. 8) can be reduced to make it smaller.

[0026] The insulation between the contacts 4 and the wires 8 is provided by spatial insulation due to their arrangement, insulation of the wire coating, and is supplemented by an upper cover 22 and an insulating plate 23. The insulating plate 23 may be extended downward.

[0027] As shown in Fig. 10, the wiring is clamped between tension stoppers 15 and 25 to prevent stress from being applied to solder connection portion 9c, etc. This clamping method can reduce the internal volume related to the wiring compared to the labyrinth structure of typical wiring, contributing to the miniaturization of the plug. The tension stoppers 15 and 25 may be disposed in either the wiring housing portion Wc or the cylindrical portion Bc.

[0028] <1.2.4. Function of Lever 3> As shown in Figs. 1 and 2, the lever 3 is disposed in the front direction and is disposed at a position that does not overlap with the mounting claw portion 111 when viewed from above. As shown in FIG. 9(a), the lever 3 is inserted from above the upper surface Bu of the base 1 so that the runner portion 36 is aligned with the rail portion 16. Since the runner portion 36 and the rail portion 16 are engaged with each other, the lever 3 is inserted into the base 1 without being misaligned, and can be moved smoothly in the vertical direction. When the lever 3 is further inserted, the hook portion 38 is engaged with the hook portion 18 of the base 1, and the lever 3 does not fall off the base 1 inadvertently. At this time, as shown in FIG. 10, the spring 7 is arranged in a state where it is held by the spring holding portions 17 and 37, so that the base 1 and the lever 3 are engaged with each other in a state where the lever 3 protrudes above the upper surface Bu of the base 1, as shown in FIG. 9(C) and FIG. 10. Hereinafter, this engaged state is referred to as a "locked state."

[0029] When the lighting fixture 1 is attached to the lighting duct D, it is in a locked state, and the runner portion 36 fits exactly into the opening De, as shown in Fig. 4(b). In this locked state, the plug 100 cannot be rotated horizontally unless the lever 3 is pressed down, so the lighting fixture 1 cannot be attached to or detached from the lighting duct D, and this prevents the lighting fixture 1 from accidentally falling off.

[0030] In this embodiment, the runner portion 36 is convex and the rail portion 16 is concave, but this is not limiting as long as they are engaged with each other. For example, the runner portion may be concave and the rail portion may be convex.

[0031] In this embodiment, the lever 3 maintains the locked state unless it is continuously pressed down by the spring 7, but this is not limiting and it is sufficient if the locked state can be released with a required pressing force. As an example, the engagement between the lever and the base may be maintained in the locked state by fitting or frictional force without using a spring, and the locked state may be released with a required pressing force.

[0032] <2. Extraction of invention> The configuration of a lighting fixture according to one embodiment of the present invention, as well as modifications and effects thereof, will be described below.

[0033] (1) A lighting fixture according to one embodiment of the present invention is a lighting fixture having a plug that can be attached to a lighting duct, the plug having a contact that electrically connects to the lighting duct, wiring electrically connected to the contact, and a tubular portion, and at least a part of the connection between the contact and the wiring is arranged in a portion of the tubular portion that is located within the lighting duct when the plug is attached to the lighting duct.

[0034] With this configuration, by storing the wiring inside the plug, conductive fittings, etc. in the part located inside the lighting duct, it is possible to provide a lighting fixture with a design that blends in with the space by making the plug smaller while still providing the necessary functions.

[0035] (2) The lighting device may be one as described in (1) above, in which the tubular portion has an outwardly curved portion, and the connecting portion is disposed inside the outwardly curved portion. It is also possible to use the following.

[0036] According to this configuration, while having the effect of (1) above, it is possible to provide a lighting fixture in which the electrical connection portion can be disposed in a curved portion, thereby enabling the height of the plug to be reduced.

[0037] (3) The plug may be a lighting fixture as described in (2) above, wherein the plug has a mounting claw portion protruding outward from the tubular portion, and the outwardly bent portion is a portion connected to the base end of the mounting claw portion at the tubular portion.

[0038] With this configuration, a lighting fixture can be provided that has the effect of (2) above, while enabling the height of the plug to be reduced by sharing the outwardly bent portion of the tubular portion and the portion connected to the base end of the mounting claw portion.

[0039] (4) A lighting fixture having a plug that can be attached to a lighting duct, the plug having a contactor that electrically connects to the lighting duct, wiring, and a wiring connection portion that electrically connects the contactor and the wiring, the contactor having a plurality of flat plate portions, one of the flat plate portions having a conductor connection portion that receives power supply from the lighting duct, another of the flat plate portions having the wiring connection portion, and the angle formed between one of the flat plate portions and another of the flat plate portions being an acute angle.

[0040] With this configuration, by appropriately bending the contacts inside the plug, it is possible to secure space to accommodate the conductor connection part, make the plug smaller while still providing the necessary functions, and provide a lighting fixture with a design that blends in with the space.

[0041] (5) The plug may be provided with a rail portion and a lever that allows the plug to be detached, and the lever may be provided with a runner portion, and the rail portion and the runner portion may be engaged to enable the lever to move in the upward and downward directions of the plug, as in the lighting fixture described in (1) or (4).

[0042] With this configuration, while having the effects of (1) or (4) described above, the plug can be moved vertically using the detachable lever, making it possible to provide a lighting fixture that can be smoothly attached and detached to the lighting duct.

[0043] (6) The lighting device may be as described in (5) above, in which, when the plug is attached to the lighting duct, the outer peripheral shape of the lever prevents the plug from rotating and prevents the plug from falling off the lighting duct.

[0044] According to this configuration, it is possible to provide a lighting fixture which has the effect of (5) above and is prevented from falling off the lighting duct.

[0045] (7) The plug may be formed by combining a plurality of parts, and the plurality of parts may be fixed by screws disposed on an upper surface of the plug, in the lighting device described in (1) or (4).

[0046] According to this configuration, while having the effects of (1) or (4) described above, by locating the screws for fixing the multiple parts on the upper surface of the plug, it is possible to provide a lighting fixture that improves its appearance by making the screws invisible when the lighting fixture is attached to a lighting duct.

[0047] (8) The plug may be a lighting device as described in (1) or (4) that includes two of the contacts, an insulating plate portion arranged on the side of the contacts, and a top cover portion arranged above the contacts, the insulating plate portion and the top cover portion being integrally molded to extend the insulating distance between the contacts.

[0048] According to this configuration, it is possible to provide a lighting fixture that has the effect of (1) or (4) above and that extends the insulation distance between the contacts of the electrical connection portion.

[0049] (9) (10) The plug is , tubeThe lighting fixture may also be as described in (1) or (4) above, which comprises a cylindrical portion and a wiring accommodating portion that accommodates the wiring, the cylindrical portion and the wiring accommodating portion being formed by combining a plurality of parts, the cylindrical portion and the wiring accommodating portion being provided with a convex portion facing an inner wall portion of the cylindrical portion or the wiring accommodating portion, the wiring being arranged in the cylindrical portion or the wiring accommodating portion, and when the plurality of parts are combined, the convex portion clamps the wiring, thereby providing a tension stop for the wiring.

[0050] According to this configuration, it is possible to provide a lighting fixture that has the effect of (1) or (4) above and that allows tension fixing of wiring when multiple parts are combined.

[0051] Thus, the present invention naturally includes various embodiments not described herein. Therefore, the technical scope of the present invention is defined only by the invention-specifying matters according to the claims that are appropriate from the above description. [Explanation of symbols]

[0052] 100 Plug 1, 2, B Base, Parts 111, 111L, 111R Mounting claws 11, 11L, 11R Mounting claw element part 14 Contact holding part 15 Tension stop 16 Rail section 17 Spring holder 18 Hook part 21, 21L, 21R Mounting claw element 22 Top cover 23 Insulating plate section 24 Contact holding part 25 Tension stop 29, 29u, 29l fulcrum part Bc cylinder part Sc Solder Receptacle Hc Retaining part housing Wc Wiring compartment Bu top part WH wiring hole 3 Lever 36 Runners Club 37 Spring holder 38 Hook part 4, 4L, 4R contacts 41 Conductor connection 41P flat plate part 42 Insertion hole, wiring insertion hole 42P flat plate part 43 Holding part 43P flat plate part 5, 5L, 5R screws 6 Nuts 7. Spring 8 Wiring 9 Solder 9C Solder joints, wiring joints 800 Equipment body 81 Light body part 82 Arm section 900 Lighting Equipment D Lighting Duct Dr Rail Part Dc Conductor De opening

Claims

1. A lighting fixture having a plug that is attached to a lighting duct, The plug is A tube portion is inserted through an opening along a longitudinal direction of the lighting duct; an engagement mechanism disposed on the cylindrical portion and adapted to engage with the lighting duct; a contact for electrically connecting to the lighting duct; a wiring electrically connected to the contact, a receiving portion for receiving at least a part of a connection portion between the contact and the wiring, the receiving portion being provided in a portion of the cylindrical portion that is located in the lighting duct when the lighting device is attached to the lighting duct; Lighting fixtures.

2. the tubular portion includes an outwardly curved portion; The connection portion is disposed inside the outwardly bent portion.

2. The lighting device of claim 1.

3. The plug includes a mounting claw portion that protrudes outward from the cylindrical portion, The outwardly bent portion is a portion of the tubular portion that is connected to a base end of the mounting claw portion.

3. A lighting device according to claim 2.

4. The plug includes a rail portion and A lever is provided for attaching and detaching the plug, The lever includes a runner portion, The rail portion and the runner portion are engaged with each other, thereby enabling the lever to move in the up and down direction of the plug.

2. The lighting device of claim 1.

5. When the plug is attached to the lighting duct, the outer peripheral shape of the lever prevents the plug from rotating and prevents the plug from falling off the lighting duct.

5. A lighting device according to claim 4.

6. The plug is formed by combining a plurality of parts, The parts are fixed by screws disposed on the upper surface of the plug.

2. The lighting device of claim 1.

7. The plug includes two of the contacts, an insulating plate portion disposed on a side of the contact; a top cover portion disposed above the contacts, The insulating plate portion and the upper cover portion are integrally molded to extend the insulation distance between the contacts.

2. The lighting device of claim 1.

8. The plug is A wiring housing portion for housing the wiring is provided, the tube portion and the wiring housing portion are formed by combining a plurality of parts, a convex portion facing an inner wall portion of the cylindrical portion or the wiring housing portion, the wiring is disposed in the tube portion or the wiring housing portion, When the plurality of parts are assembled, the convex portion sandwiches the wiring, thereby providing a tension stop for the wiring.

2. The lighting device of claim 1.

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