Wiring devices

Abstract

To provide a wiring device that can prevent the enclosure from tilting. [Solution] The wiring device 10 comprises a housing 12, a wiring device body 13, and a cable 11. The wiring device body 13 is disposed in the housing 12. The cable 11 has a coiled portion 22, a final winding portion 23 formed at the end of the coiled portion 22, and a straight portion 24 formed in a straight line from the end of the final winding portion 23 in a direction along the central axis of the coiled portion 22. The straight portion 24 is pulled into the housing 22 from the top surface of the housing 12 and electrically connected to the wiring device body 13.

Description

Technical Field

[0006]

[0001] Embodiments of the present invention relate to wiring devices.

Background Art

[0002] Conventionally, there is a hanging type outlet as a wiring device. This hanging type outlet uses a stretchable cable having a curled portion formed in a coil shape, and the end portion on the lower end side of the curled portion of the cable is drawn into the housing and electrically connected to the outlet body in the housing.

[0003] In such a hanging type outlet, when a cable having a straight portion formed in a direction intersecting the central axis of the curled portion from the end of the outermost winding portion formed on the end side of the curled portion is used, depending on the structure for drawing the straight portion of the cable into the housing, there is a risk that the housing will be tilted with respect to the vertical direction by the cable.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] The problem to be solved by the present invention is to provide a wiring device capable of preventing the tilt of the housing.

Means for Solving the Problems

[0006] The wiring device of the embodiment includes a housing, a wiring device body, and a cable. The wiring device body is disposed in the housing. The cable has a curled portion formed in a coil shape, an outermost winding portion formed on the end side of the curled portion, and a straight portion formed linearly in a direction along the central axis of the curled portion from the end of the outermost winding portion. The straight portion is drawn into the housing from the upper surface of the housing and electrically connected to the wiring device body. [Effects of the Invention]

[0007] According to this embodiment, it is expected that the tilting of the wiring device housing can be prevented. [Brief explanation of the drawing]

[0008] [Figure 1] This is a perspective view of a wiring device showing one embodiment. [Figure 2] The above shows the cable of the wiring device, with (a) being a side view of the cable of the comparative example and (b) being a side view showing an example of the molded cable of this embodiment. [Figure 3] This is a perspective view of the cable and housing of the same wiring device. [Figure 4] This is a perspective view of the housing of the same wiring device with the cables omitted. [Figure 5] This is a perspective view showing the internal structure of the same wiring device as seen from the rear. [Figure 6] This is a perspective view showing the internal structure of the same wiring device as seen from the front. [Figure 7] This is a perspective view showing the internal structure of the same wiring device as seen from the front. [Figure 8] This is a side view showing another example of the cable for the same wiring device. [Modes for carrying out the invention]

[0009] One embodiment will be described below with reference to the drawings.

[0010] Figure 1 shows a hanging outlet as a wiring device 10. The wiring device 10 comprises a cable 11, a housing 12 disposed on the lower end of the cable 11, a wiring device body 13 (see Figures 5 to 7) disposed inside the housing 12, a suspension device 14 (see Figures 5 and 6) disposed inside the housing 12, and a connection part 15 disposed on the upper end of the cable 11. The wiring device section 16 is formed by the housing 12, the wiring device body 13 and the suspension device 14 disposed inside the housing 12, and the cable 11 and the suspension cord 55 of the suspension device 14 (see Figure 3, etc.) are connected between the wiring device section 16 and the connection part 15.

[0011] The cable 11 is shown in Figures 1 to 3 and Figures 5 to 7. The cable 11 is, for example, a vinyl parallel cord (VFF) in which multiple wires 20, each with a conductor covered in an insulator, are covered with an insulating sheath (covering) 21 with an elliptical cross-section. The cable 11 is a 3-core type having two wires 20 for voltage poles and one wire 20 for grounding.

[0012] The cable 11 is a coiled cord having a coiled portion 22 formed in a coil shape (spiral shape) around a predetermined central axis. A final winding portion 23 is formed at one end of the coiled portion 22, which is the lower end, and a straight portion 24 extends from the end of the final winding portion 23.

[0013] Figure 2(a) shows the comparative example cable 11. The comparative example cable 11 is a typical coiled cord, with a straight section 24 extending from the end of the final winding section 23 in a direction intersecting the central axis z of the coiled section 22. Specifically, the straight section 24 is arranged to extend tangentially to the circular shape of the coiled section 22 when viewed from the central axis direction (vertical direction in this embodiment). The final winding section 23 is part of the coiled section 22, and at least when viewed as a standalone cable (not assembled in the housing 12), it is formed in a coil shape (spiral shape) similar to the coiled section 22. Unlike the coiled section 22 and the final winding section 23, the straight section 24 is not formed in a coil shape (spiral shape) at least when viewed as a standalone cable (not assembled in the housing 12).

[0014] Figure 2(b) shows an example of a molded cable 11 according to this embodiment. The cable 11 is molded in such a way that the straight section 24 extending tangentially from the end of the final winding section 23 at the lower end of the curled section 22 is reoriented to align with the central axis z1 of the curled section 22. In the molding process, the cable 11 of the comparative example is placed in a mold and heated while being pressed to obtain the shape of the cable 11 shown in Figure 2(b).

[0015] By shaping the straight section 24 in a direction along the central axis z1 of the curled section 22, the final winding section 23 changes its orientation so that, at least when viewed as a standalone cable 11 (not assembled into the housing 12), it is tilted more significantly than the coiled inclination of the intermediate winding section 25 above it. In other words, the central axis z2 of the final winding section 23 changes its orientation so that it intersects the central axis z1 of the curled section 22 (intermediate winding section 25). As a result, the final winding section 23 has a lower portion 23a that detaches from the intermediate winding section 25 and protrudes downward, and an upper portion (bent portion) 23b that bends near the end of the final winding 23 so that it is smaller than the outer shape of the intermediate winding section 25 and protrudes upward. At least a part of the upper portion 23b is positioned inside the intermediate winding section 25 of the curled section 22. The arrangement of at least a portion of the upper portion 23b inside the intermediate winding portion 25 of the curled portion 22 includes cases where at least a portion of the upper portion 23b extends into the inner region of the inner circumferential surface of the intermediate winding portion 25, and cases where at least a portion of the upper portion 23b does not extend into the inner region of the inner circumferential surface of the intermediate winding portion 25, but is located below the inner region of the inner circumferential surface of the intermediate winding portion 25 when viewed from a direction along the central axis z1 of the curled portion 22.

[0016] By forming a straight section 24 along the central axis z1 of the curled section 22 and pulling it inward from the top surface of the housing 12, the internal structure of the housing 12, such as the structure for holding the cable 11, can be simplified and assembly can be improved compared to a structure in which the curled section 22 is pulled directly into the housing 12.

[0017] As shown in FIGS. 5 and 6, the tip of the straight portion 24 drawn into the housing 12 is positioned between the upper surface of the housing 12 and the winding portion 56 of the suspension device 14, and the three electric wires 20 protruding from the tip of the straight portion 24 are divided and routed so as to be dispersedly arranged in the housing 12 and connected to the wiring device main body 13.

[0018] Note that the straight portion 24 of the cable 11 refers to a region in the cable 11 that is not coiled. That is, the straight portion 24 does not necessarily have to be straight, and the straight portion 24 may include bent or curved portions. Further, a final winding portion and a straight portion may be similarly formed on the upper end side, which is the other end side of the curled portion 22.

[0019] The housing 12 is shown in FIGS. 1, 3 to 7. The housing 12 is made of resin and has insulating properties. The housing 12 is formed in an outer shape that is narrow at the upper side and wider toward the lower side when viewed from the front (front view from a direction in which the operation button 38 can be confirmed). An opening 30 for arranging the wiring device main body 13 is formed on the lower surface side of the housing 12.

[0020] The upper surface portion 31 of the housing 12 is formed in a circular shape, and a hole portion 32 through which the straight portion 24 of the cable 11 is inserted is provided in a region deviated from the center of the upper surface portion 31 toward the outer diameter side, and a hanging string insertion hole 34 is provided at the center of the upper surface portion 31.

[0021] The end of the final winding portion 23 of the cable 11 is located outside the housing 12, and the straight portion 24 on the end side from the end of the final winding portion 23 is inserted through the hole portion 32 and arranged inside the housing 12. It is preferable that the lower portion 23a of the final winding portion 23 does not contact the housing 12 in order to prevent the housing 12 from tilting, but it may contact within a range where the influence on the tilt of the housing 12 is small.

[0022] On the front side of the housing 12, an operation button 38 for operating the suspension device 14 is arranged so as to be push-operable. On the back side of the housing 12, a hook 39 for hooking the middle of the power cord is attached so that no tension is applied to the power cord connected to the wiring device main body 13.

[0023] The housing 12 comprises a first housing section 41 on the front side and a second housing section 42 on the rear side, and is formed in two parts in the front-to-back direction. The housing 12 is assembled as a single unit by combining the first housing section 41 and the second housing section 42 and fastening them with screws.

[0024] As shown in Figure 4, the upper surface portion 31 of the housing 12 and the holes 32 provided in this upper surface portion 31 are divided and formed by a first housing portion 41 and a second housing portion 42, and are constructed by combining the first housing portion 41 and the second housing portion 42.

[0025] The upper surface 31 of the first housing portion 41 is provided with a projection 43 that protrudes from the first housing portion 41 towards the second housing portion 42, and the tip of this projection 43 constitutes approximately half the area of ​​the hole portion 32. The projection 43 is provided with a pull cord insertion hole 34 corresponding to the center position of the upper surface portion 31, and a metal ring (eyelet) 44 is attached to this pull cord insertion hole 34.

[0026] As shown in Figure 5 (with the second housing 42 removed), the upper area on the inner surface of the first housing portion 41 is provided with a plurality of retaining portions 45 in the area below the hole 32, which accommodate and hold the straight portion 24 of the cable 11 between it and the second housing portion 42.

[0027] A suspension device 14 is screw-fastened to the central area of ​​the inner surface of the first housing portion 41. A metal suspension cord guide 46 is positioned on the inner surface of the first housing portion 41, between the suspension device 14 and the suspension cord insertion hole 34, to slidably guide the suspension cord 55. The cord guide 46 is sandwiched and held between the first housing portion 41 and the second housing portion 42.

[0028] A wiring device body 13, fitted into the opening 30, is positioned in the lower area of ​​the inner surface of the first housing portion 41. The wiring device body 13 is held in place by being sandwiched between the first housing portion 41 and the second housing portion 42.

[0029] As shown in Figure 6 (with the first housing 41 removed) and Figure 7 (with the first housing 41 and the suspension device 14 etc. removed), the upper area on the inner side of the second housing portion 42 is provided below the hole 32, and a linear holding portion 47 is provided to hold the straight portion 24 of the cable 11 that is pulled in from the hole 32 in a straight line along a direction perpendicular to the upper surface portion 31 (hereinafter referred to as the vertical direction).

[0030] In the central area of ​​the inner surface of the second housing portion 42, a rectangular frame-shaped winding portion holding portion 48 is provided, which fits the winding portion 56 of the suspension device 14 between it and the first housing portion 41. On both sides of the winding portion holding portion 48 and above and below the winding portion holding portion 48, groove-shaped wire holding portions 49 are provided, which connect the upper and lower areas of the second housing portion 42 and allow each wire 20 of the cable 11 to be inserted and held.

[0031] A wiring device body 13, fitted into the opening 30, is positioned in the lower area of ​​the inner surface of the second housing portion 42. The wiring device body 13 is held in place by being sandwiched between the first housing portion 41 and the second housing portion 42.

[0032] Furthermore, the wiring device body 13 is, for example, a power outlet. The outlet has a resin outlet body 50, and multiple sets of a pair of connection holes and a ground hole are provided on the underside of the outlet body 50 into which a pair of plug blades and a ground blade of a power plug are inserted. Inside the outlet body 50, multiple sets of a pair of blade receiving terminals to which a pair of plug blades inserted into a pair of connection holes are electrically connected, and a ground terminal to which a ground blade inserted into a ground hole is electrically connected. On the upper side of the outlet body 50, there are wire insertion holes 51 into which the three wires 20 of the cable 11, which are electrically connected to the pair of blade receiving terminals and the ground terminal, are respectively inserted.

[0033] Note that the wiring device body 13 is not limited to a power outlet; for example, it could be a communication connector or a switch.

[0034] Furthermore, as shown in Figures 5 and 6, the suspension device 14 includes a suspension cord 55 and a winding unit 56 that can wind up and unwind the suspension cord 55, with the winding unit 56 mounted inside the housing 12. The suspension cord 55 is made of, for example, polyamide synthetic resin, and is pulled out to the outside through a suspension cord insertion hole 34 in the center of the upper surface 31 of the housing 12, inserted through the curled portion 22 of the cable 11, and connected to the connection portion 15.

[0035] The winding unit 56 includes a winding case 57, a reel for winding the suspension cord 55 inside the winding case 57, a winding spring for biasing the reel to rotate in the winding direction, a stopper mechanism for restricting the rotation of the reel in the winding direction, and a release button 58 for releasing the stopper mechanism and enabling the reel to rotate in the winding direction.

[0036] The reel is rotatable around a winding shaft in the front-to-back direction relative to the winding case 57, and rotates in a counterclockwise direction to wind up the suspension cord 55 when viewed from the front of the housing 12 (a front view from the direction in which the operation button 38 can be seen), and rotates in a clockwise direction to unwind the suspension cord 55.

[0037] The winding spring exerts a biasing force that rotates the reel in the winding direction, which is stronger than the rotational force applied to the reel in the unwinding direction by the load of the wiring device section 16. The rotation of the reel, which is biased in the winding direction by this winding spring, is restricted by a stopper mechanism.

[0038] The stopper mechanism restricts rotation of the reel only in the winding direction by engaging stopper parts provided at multiple locations (for example, four locations) around the circumferential direction of the reel with release buttons 58 located at engagement positions within the rotational range of the stopper parts. In the opposite direction, the unwinding direction, rotation of the reel is enabled by moving the release buttons 58 to a release position outside the rotational range of the stopper parts (the same release position as when the release buttons 58 are pressed).

[0039] The release button 58 is movable in the forward and backward direction along the axial direction of the reel's winding shaft and is biased by a release button spring toward a forward engagement position where it can engage with the reel's stopper. When the release button 58 is pushed from the front, it moves to the rear release position, releasing its engagement with the stopper and allowing the reel to rotate in the winding direction. Furthermore, when the wiring device section 16 is lowered without pushing the release button 58, the reel can rotate in the unwinding direction. This is because the stopper rotates in the unwinding direction along with the reel, causing the inclined surfaces of the stopper and the release button 58 to come into contact and push the release button 58 from the forward engagement position to the rear release position. In this case, as the reel completes one rotation, the release button 58 repeatedly comes into contact with and passes over multiple stopper sections, resulting in the release button 58 moving multiple times in the forward and backward direction.

[0040] A rectangular frame-shaped first fitting portion 59 is provided on the front side of the winding case 57, which fits into the inner surface of the first housing portion 41, and a rectangular frame-shaped second fitting portion 60 is provided on the rear side of the winding case 57, which fits into the inside of the winding portion holding portion 48 of the second housing portion 42. The second fitting portion 60 is provided with a groove portion 61 through which one of the electric wires 20 of the cable 11 is inserted.

[0041] A release button 58 protrudes from the front of the winding case 57. The release button 58 is located on the back side of the operation button 38, which is positioned between the first housing 41 and the winding case 57. When the operation button 38 is pressed from the front, the release button 58 is activated and the stopper mechanism is released. The operation button 38 is attached to the tip of the release button 58 by press-fitting or the like.

[0042] A pull-out hole 62 is provided on the upper side of the winding case 57 from which the hanging cord 55 is pulled out. The hanging cord 55 pulled out from the pull-out hole 62 is then pulled out to the outside through the hanging cord insertion hole 34.

[0043] The pull-out hole 62 is located to the left of the center when viewed from the front of the housing 12, and the suspension cord 55 from the reel is pulled out from the pull-out hole 65 diagonally to the right. A suspension cord guide 46 is used to guide the suspension cord 55 pulled out from the pull-out hole 62 to change direction toward the suspension cord insertion hole 34. The suspension cord guide 46 is made of a metal plate curved with a large curvature, for example, a radius of 20 mm or more, and is sandwiched and held between the first housing part 41 and the second housing part 42.

[0044] Furthermore, as shown in Figure 1, the connection part 15 is connected to the suspension cord 55 of the suspension device 14 to suspend the housing 12. The connection part 15 is composed of a plug that is electrically and mechanically detachably attached to any position on a lighting duct (wiring duct) installed on the ceiling side. The connection part 15 may also be a plug that is electrically and mechanically detachably attached to a ceiling hook or the like installed on the ceiling surface, or a mounting device that is directly installed on the ceiling surface.

[0045] Next, we will explain how to assemble the wiring device 10.

[0046] As shown in Figure 5, the first fitting portion 59 of the winding portion 56 of the suspension device 14 is fitted to the inner surface of the first housing portion 41 and secured with screws. A suspension cord guide 46 is attached to the first housing portion 41, and the suspension cord 55 is pulled out to the outside through the suspension cord insertion hole 34 (ring 44) via the convex side of the suspension cord guide 46. The end of the suspension cord 55 pulled out to the outside through the suspension cord insertion hole 34 is passed through the curled portion 22 of the cable 11.

[0047] Each of the three wires 20 protruding from the straight section 24 of the cable 11 is inserted into the respective wire insertion holes 51 on the upper side of the wiring device body 13 to make an electrical connection.

[0048] As shown in Figure 6 (the winding section 56 is not yet positioned in the second housing section 42 at this stage of assembly) and Figure 7, the wiring device body 13 is fitted into the opening 30 of the second housing section 42 from the inner side of the second housing section 42, and the straight section 24 of the cable 11 is fitted into the hole 32 of the upper surface section 31 of the second housing section 42, and the straight section 24 is also fitted into the straight holding section 47 of the second housing section 42. In this state, the straight section 24 is held in a straight line along the vertical direction of the housing 12 from the hole 32 of the upper surface section 31, and the tip of the straight section 24 is positioned between the hole 32 of the upper surface section 31 and the positioning area of ​​the winding section 56. The three wires 20 between the tip of the straight section 24 of the cable 11 and the wiring device body 13 are fitted and held in the wire holding sections 49 on both sides of the winding section fitting section 48 and within the winding section fitting section 48.

[0049] The first housing section 41 and the second housing section 42 are assembled and fixed together with screws. The cable 11, each electric wire 20, the wiring device body 13, the suspension cord guide 46, and the winding section 56 are sandwiched and held between the first housing section 41 and the second housing section 42.

[0050] By combining the first housing portion 41 and the second housing portion 42, the upper surface portion 31 of the first housing portion 41 and the upper surface portion 31 of the second housing portion 42 are joined together, and a hole portion 32 is formed in the upper surface portion 31 of the housing 12.

[0051] The straight section 24 of the cable 11 is drawn into the housing 12 through the hole 32 and held in a straight line along the vertical direction perpendicular to the upper surface 31 by the straight holding section 47 within the housing 12. The tip of the straight section 24 is positioned between the hole 32 of the upper surface 31 and the winding section 56. Each electric wire 20 drawn out from the tip of the straight section 24 is separated and held by each electric wire holding section 49 of the second housing section 42, positioned on both sides of and inside the second fitting section 60 of the winding section 56, and connected to the wiring device body 13.

[0052] Meanwhile, the tip of the suspension cord 55, which is inserted into the coiled portion 22 of the cable 11, is connected to the connector 15, and the upper end of the cable 11 is electrically and mechanically connected to the connector 15.

[0053] To use the wiring device 10, the connection part 15 is attached to the lighting duct and electrically connected. The wiring device part 16 is suspended and supported from the connection part 15 by a suspension cord 55 that is unwound from the winding part 56 and connected to the connection part 15. The biasing force that biases the reel in the winding direction by the winding spring of the winding part 56 is stronger than the rotational force applied to the reel in the unwinding direction by the load of the wiring device part 16, and a stopper mechanism acts on the reel in the winding direction, so the wiring device part 16 suspended by the suspension cord 55 is supported at a constant height position. In addition, the curled part 22 of the cable 11 expands and contracts according to the distance between the connection part 15 and the housing 12, but has a biasing force in the contracting direction, and the wiring device part 16 is also suspended and supported by the cable 11.

[0054] Power is supplied to the wiring device body 13 from the lighting duct side via cable 11. Power is supplied to the electrical equipment when the plug of the power cord of the electrical equipment is plugged into the wiring device body 13.

[0055] Furthermore, pressing the operation button 38 releases the stopper mechanism of the winding unit 56, allowing the housing 12 to be raised or lowered to adjust its height. When the housing 12 is raised, the suspension cord 55 is wound into the winding unit 56 by the biasing force of the winding spring of the winding unit 56, and when the housing 12 is lowered, the suspension cord 55 is unwound from the winding unit 56 against the biasing force of the winding spring of the winding unit 56. When lowering the housing 12, the operation button 38 may be pressed, but even without pressing the operation button 38, the stopper mechanism of the winding unit 56 does not act in the direction in which the suspension cord 55 is unwound, so the housing 12 can be lowered by pulling it downwards.

[0056] After adjusting the height of the housing 12, releasing the operation of the operation button 38 activates the stopper mechanism of the winding unit 56, restricting both the winding and unwinding of the suspension cord 55 relative to the winding unit 56, and the unit is suspended by the suspension cord 55 at the adjusted height.

[0057] Furthermore, in the wiring device 10, as shown in Figure 2(b), the cable 11 is used in which the straight section 24 extending tangentially from the end of the final winding section 23 of the curled section 22 is shaped in a direction along the central axis z1 of the curled section 22, thereby preventing the housing 12 from tilting.

[0058] If, for example, a comparative example cable 11 is used in which a straight section 24 extends tangentially from the end of the final coiled section 23 in a direction intersecting the central axis z1 of the curled section 22, as shown in Figure 2(a), and the straight section 24 is reoriented to align with the central axis z1 of the curled section 22 and pulled into the housing 12 from the upper surface 31, the housing 12 is likely to tilt due to the tension on the cable 11 caused by the realignment of the straight section 24.

[0059] In contrast, by using the molded cable 11 as described above, there is no effect of tension on the cable 11 due to the change in direction of the straight section 24. Therefore, even if the straight section 24 is pulled into the housing 12 from the top surface 31 of the housing 12, the housing 12 is prevented from tilting.

[0060] Furthermore, as shown in Figure 8, the cable 11 can also be formed by creating a straight section 24 from the end of the final winding section 23 in a direction along the central axis z1 of the curled section 22, where the inclination angle of the final winding section 23 with respect to the central axis z1 coincides with the inclination angle of the curled section 22 with respect to the central axis z1.

[0061] In the case of this cable 11, when the wiring device section 16 is lowered or raised while the wiring device section 16 is suspended from the connection section 15, even if the coiled section 22 of the cable 11 extends or contracts, the inclination angle of the final winding section 23 with respect to the central axis remains the same as the inclination angle of the coiled section 22 with respect to the central axis z1. Therefore, by using this cable 11, it is possible to further reduce the influence on the tilt of the housing 12.

[0062] As described above, in the wiring device 10 of this embodiment, a cable 11 is used in which a straight section 24 is formed in the direction along the central axis z1 of the curled section 22 from the end of the final winding section 23 of the curled section 22. Since the straight section 24 is pulled into the housing 12 from the upper surface 31 of the housing 12, it is possible to prevent the housing 12 from tilting regardless of the orientation of the final winding section 23.

[0063] Since the end of the final coiled section 23 is located outside the housing 12, only the straight section 24 of the cable 11 is pulled into the housing 12. Compared to the case where the coiled section 22 is pulled directly into the housing 12, this simplifies the internal structure of the housing 12, such as the structure for routing and holding the cable 11 within the housing 12, and provides a wiring device 10 that is easy to assemble.

[0064] Since at least a portion of the final coiled portion 23 can fit inside the curled portion 22, even if the final end portion 23 comes into contact with the upper surface of the housing 12, it is possible to avoid the final end portion 23 pressing against the upper surface of the housing 12, thereby preventing the housing 12 from tilting.

[0065] Furthermore, if the three wires 20 of the cable 11 were routed between the housing 12 and the winding section 56 in a bundled state (covered by the sheath 21), the cable 11 drawn into the housing 12 would have to be bent to avoid the winding section 56, and the tension of the cable 11 could cause the housing 12 to tilt, and the housing 12 would become larger. In this embodiment, the three wires 20 of the cable 11 are routed between the housing 12 and the winding section 56 in a separated state, so the tension of the cable 11 can be distributed, reducing the effect of the cable 11 tension on the tilting of the housing 12, and the housing 12 can be made smaller.

[0066] While several embodiments of the present invention have been described, these embodiments are presented as examples only and are not intended to limit the scope of the invention. These novel embodiments can be carried out in a variety of other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their variations are included in the scope and spirit of the invention, as well as in the claims of the invention and its equivalents. [Explanation of Symbols]

[0067] 10 Wiring devices 11 Cables 12 cabinets 13 Wiring device body 15 Connection part 20 Electric wire 22 Curl section 23 Final Volume 24 Straight section 55. Hanging string 56 Winding section

Claims

1. The enclosure and; The wiring device body is installed in the aforementioned housing; The cable comprises a coiled portion, a final winding portion formed at the end of the coiled portion, and a straight portion formed in a straight line from the end of the final winding portion in a direction along the central axis of the coiled portion, wherein the straight portion is drawn into the housing from the top surface of the housing and electrically connected to the wiring device body; A wiring device characterized by having the following features.

2. The end of the final winding section is located outside the housing. Wiring device according to feature 1.

3. The inclination angle of the final coiled portion with respect to the central axis is the same as the inclination angle of the curled portion with respect to the central axis. Wiring device according to feature 1.

4. At least a portion of the final coiled portion is located inside the curled portion. Wiring device according to feature 1.

5. The housing is equipped with a winding section that allows the suspension cord to be wound up and unwound, The cable routed into the housing is a three-core type with three wires, and each of the three wires is routed between the housing and the winding section in a separated state. Wiring device according to feature 1.

6. The cable is connected to a connector that can be connected to a lighting duct. A wiring device according to any one of features 1 to 5.

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