TW201804691A - Suspended type receptacle capable of suppressing tilting of the housing with respect to the vertical direction - Google Patents

Abstract

The present invention provides a suspended type receptacle capable of suppressing tilting of the housing with respect to the vertical direction. A wire (3) includes a winding part (33), a first connecting end (31) and a second connecting end (32). The winding part (33) is formed into a coil shape having a straight line along the vertical direction as a central axis (Z1). The first connecting end (31) is connected to the upper end (332) of the winding part (33) and is electrically connected to the power source. The second connecting end (32) is connected to the lower end (331) of the winding part (33) and is electrically connected to the receptacle body (2). The wire (3) is introduced into the housing (1) through an inlet (101) formed at an upper end portion of the housing (1), and the second connecting end (32) in the housing (1) is connected to the receptacle body (2). The housing (1) has a coil storage space (131) which is connected to an external space of the housing (1) through the inlet (101) and accommodates the lower end (331) of the winding part (33).

Description

Hanging socket

The present invention generally relates to a suspension type socket, and more specifically, to a suspension type socket suspended from a suspension structure.

A conventionally known suspension-type socket includes a rope body suspended from a support fixed to a ceiling, and a box body provided at the tip of the rope body so as to be freely liftable (for example, Reference 1 [Japanese Published Patent Gazette 2007-193995]).

The (ceiling) pendant socket described in Document 1 includes a cable (power source curve) and a socket body (socket portion), which can be freely connected to a plug-in plug. In the cable, portions other than both end portions are formed in a spiral shape. One end of the cable is housed in the support; the other end of the cable is introduced into the box. The socket body is connected to the end of the cable in the box body.

In the pendant socket described in Document 1, a substantially cylindrical head protrudes from the center of the top surface of the box body, and the rope body is pulled out of the box body through a hole penetrating the head. The cable is introduced into the box through a hole provided in the base portion of the head.

However, in the pendant socket described in Document 1, the end portion of the cable which is not formed in a spiral shape is introduced into the case from an obliquely upward direction through a hole provided at the bottom of the head. Therefore, the tension acts on the box body from the cable, or the spirally formed portion of the cable interferes with the head, and sometimes the box body is inclined to the vertical direction.

In view of this, an object of the present invention is to provide a hanging socket that can suppress the box body from tilting in the vertical direction.

A suspension socket of the present invention includes: a box body; a socket body; and a cable. The box body is suspended from a suspension structure. The socket body has a connection surface formed with an insertion hole for inserting an insert. The socket body accommodates at least a part of the socket body such that the connection surface is exposed from an opening formed in the box body. This cable includes: a crimped portion; a first connection end; and a second connection end. The curled portion is formed in a coil shape having a straight line along the vertical direction as a central axis. The first connection end is connected to an upper end portion of the curled portion and is electrically connected to a power source. The second connection end is connected to a lower end portion of the curled portion and is electrically connected to the socket body. The cable is introduced into the box body from an introduction port formed in an upper end portion of the box body, and the second connection end in the box body is connected to the socket body. The box body has a curled storage space, the curled storage space is connected to the outer space of the box body at the introduction port, and houses the lower end portion of the curled portion.

(1) Overview As shown in FIGS. 2 to 4, the suspension socket 10 according to this embodiment includes a box body 1, a suspension structure 9 (see FIG. 4) suspended from a building ceiling, and the like, and a socket body 2.

The hanging socket 10 of this embodiment has a function of an outlet that connects a plug of an electrical device to the outlet body 2 and supplies power to the electrical device. Here, the socket body 2 of the suspension socket 10 is a 2-hole socket that can be connected to two plugs at the same time by using an AC 100V with a ground electrode. In addition, the indoor-type hanging socket 10 exemplified in the present embodiment is used in a state where it is suspended from a building ceiling serving as a suspension structure 9. The building using the hanging socket 10 may be, for example, a non-residential building such as a factory, a school, a store, or a hospital, or may be an individual house or a collective house.

The suspension socket 10 further includes a cable 3 for electrically connecting a power source such as a system power source (commercial power source) to the socket body 2. One end (the first connection end 31) of the cable 3 is electrically connected to, for example, a power supply unit such as an embedded socket provided in the suspension structure 9. The other end (second connection end 32) of the cable 3 is electrically connected to the socket body 2. Thereby, power is supplied to the socket body 2 from a power source. Most of the cables 3 are located outside the box body 1, and only the lower end portion is introduced into the box body 1 from the introduction port 101 formed at the upper end portion of the box body 1. In addition, the cable 3 is a so-called "curly curve" formed at least in part in a coil shape, and is configured to expand and contract along a lead straight line in accordance with the distance between the box body 1 and the suspension structure 9, which will be described in detail later.

The suspension socket 10 further includes a rope body 4 for suspending the box body 1 from the suspension structure 9, and a reel 5 for winding the rope body 4. The roll 5 is stored in the case 1. The rope body 4 is pulled out from the rope body 102 from the rope hole 102 formed on the top surface of the housing body 1. The rope body 4 is pulled out to the tip portion outside the box body 1 and is fixed to the suspension structure 9 outside the box body 1. Thereby, the load applied to the box body 1 is applied to the suspension structure 9 via the rope body 4, and the box body 1 is suspended from the suspension structure 9. In addition, since the distance between the box body 1 and the suspension structure 9 along the lead line is determined by the amount of the rope body 4 pulled out from the box body 1, the winding of the rope body 4 by the reel 5 is performed. And release, so that the box body 1 moves (elevates) along the lead straight line. The reel 5 can only release the rope body 4 by restricting the rotation direction by the ratchet mechanism. Therefore, if the rope body 4 is tightened, the rope body 4 can be pulled out from the box body 1, which will be described in detail later. In addition, if the release button 61 is operated in a state where the rope body 4 has been pulled out, the restriction caused by the ratchet mechanism can be released, and the restoring force acting on the reel 5 from the winding spring 62 causes the reel 5 to roll toward Rotate around the direction of the rope body 4.

The suspension socket 10 configured in this way can raise and lower the box body 1 in a state of being suspended from the suspension structure 9, thereby adjusting the height of the box body 1. That is, the user can hold the box 1 by holding it and pull down the box 1 to lower the box 1, and the user can raise the box 1 by operating the release button 61. Therefore, the user can have the following use methods: when the hanging socket 10 is not used (when not in use), the box 1 is first raised to the vicinity of the hanging structure 9 and only when the hanging socket 10 is used (use Time), the box body 1 is lowered to a desired height. The suspension type plug 10 can be used for power supply of various electric appliances such as electric tools, lighting appliances, and cleaning equipment. (2) Details (2.1) Overall composition

Hereinafter, the suspension socket 10 according to this embodiment will be described in detail.

As shown in FIGS. 1 to 6, the hanging socket 10 of this embodiment includes, in addition to the box body 1, the socket body 2, the cable 3, the rope body 4 and the reel 5, a suspension button 61 and a winding spring. 62. The stopper portion 7 and the flange portion 90. Here, the box body 1 is composed of a combination of two members of the main body 11 and the cover member 12. FIG. 1 shows a hanging socket 10 in a state where the cover member 12 is removed.

In the present embodiment, in a state where the hanging socket 10 is mounted on the ceiling of the building as the hanging structure 9, the direction perpendicular to the horizontal plane (orthogonal) in this state is set to the "up and down direction", and the lower (Vertical direction) is set to "below" for explanation. Furthermore, the direction orthogonal to the up-down direction and the direction in which the main body 11 of the box body 1 and the cover 12 can be combined are set to the "front-rear direction", viewed from the main body 11, the cover 12 side is set to "front" For illustration. Furthermore, a direction orthogonal to both the up-down direction and the front-rear direction is set to a "left-right direction", and the hanging socket 10 is viewed from the front, and the right side is set to "right" and the left side is set to "left" Side "for illustration. The arrows shown in the figure as "up and down direction", "back and forth direction", and "left and right direction" are marked for illustration only and have no substance. However, these directions are not intended to limit the use direction of the suspension socket 10.

As shown in FIG. 4, the flange portion 90 is fixed to the suspension structure 9 using, for example, a dedicated mounting metal fitting. Thereby, the suspension socket 10 is attached to the suspension structure 9 in a state where the upper end portions of the cables 3 and the rope body 4 are held by the flange portion 90. In an example of this embodiment, the flange portion 90 is formed in a substantially hemispherical shape, and the cable 3 and the rope body 4 are pulled downward from the central portion of the bottom surface of the flange portion 90. A first connection end 31 at the upper end of the cable 3 is provided inside the flange portion 90 and is electrically connected to a power supply portion such as a buried socket. That is, in the flange portion 90, the suspension socket 10 performs a mechanical connection to the suspension structure 9 and an electrical connection to a power source (such as a system power source).

The case 1 is made of synthetic resin, and is used to store the socket body 2 and the like. For example, the case 1 is made of ABS resin. The box body 1 is a "lengthwise" shape whose front-back direction is flat and whose up-down direction is longer than the left-right direction. In addition, the box body 1 has a tapered shape having smaller dimensions in the left-right direction and the front-rear direction as it approaches the upper end. Here, the box body 1 has a shape in which there is no step difference from the lower end portion to the upper end portion, so-called "one motion form". Specifically, the outer peripheral surface of the box body 1 is slowly bent so as to project outward from the lower end to the middle part in the up-and-down direction, and is slowly protruded inward from the middle part in the up-down direction to the upper end. bending. Furthermore, when viewed from above, the outer peripheral surface of the box body 1 is a curved surface formed by being connected without steps throughout the circumference. With such a shape, for example, by holding the upper portion of the box body 1, even a user with a small hand can easily hold the box body 1 and easily perform the lifting operation of the box body 1. The surface of the case 1 is formed by a textured surface (embossed surface). The "texture processing" herein refers to a process of adding a wrinkle pattern (texture) with fine unevenness on the surface of the box body 1 during the molding of the box body 1.

As described above, the case 1 is configured by combining the main body 11 and the cover 12 in the front-rear direction. As shown in FIGS. 5 and 6, the front surface of the main body 11 is open, and the rear surface of the cover 12 is open. The main body 11 and the cover 12 are coupled to each other in the front-rear direction by matching the openings of each other. Thereby, an internal space 13 (refer to FIG. 1) for receiving the socket body 2 and the like is formed between the main body 11 and the cover 12. The main body 11 has a plurality of (here, six) coupling holes 111 (refer to FIG. 5) on the inner peripheral edge of the front opening. The cover 12 has a plurality of (here, six) engaging claws 121 (refer to FIG. 6) protruding rearward from the inner peripheral edge of the rear opening. In a state where the coupling claw 121 is hooked into the coupling hole 111, a plurality of (here, three) coupling screws 14 are locked to the cover member 12 through the main body 11, so that the cover member 12 is coupled to the main body 11.

Here, as shown in FIG. 1, the inner space 13 of the box body 1 is divided into four spaces: a curled storage space 131; a socket storage space 132; a relay space 133; and a winding space 134. In other words, the box body 1 includes: a curled storage space 131; a socket storage space 132; a relay space 133; and a winding space 134. The curl storage space 131 is a space for storing a part (lower end portion 331) of the curl portion 33 in the cable 3 to be described later. The socket storage space 132 is a space in which the socket body 2 is stored. The relay space 133 is a space between the curl storage space 131 and the socket storage space 132. The winding space 134 is a space for accommodating a mechanism for winding the rope body 4 such as the reel 5, the winding spring 62, and the stopper 7. Details of the curl storage space 131, the relay space 133, and the winding space 134 will be described later.

These four spaces (131 to 134) are substantially inside the box body 1, and are arranged in the order of the curled storage space 131, the relay space 133, the winding space 134, and the socket storage space 132 from the top. Specifically, the relay space 133 is located at the lower left of the curl storage space 131. The winding space 134 is located below the curl storage space 131 and below the relay space 133. The socket storage space 132 is located below the winding space 134. Focusing on the passage of the cable 3, the curl storage space 131 is connected to the socket storage space 132 through the relay space 133 and the winding space 134. These four spaces are only the spaces divided by the internal space 13 of the box 1 according to their functions. On the boundary of these four spaces (indicated by a dotted line in Figure 1), there is no physical separation. Space made of partitions and so on. However, at least two of these four spaces may also be physically separated by partition walls or the like.

An introduction port 101 for introducing the cable 3 into the inside of the case 1 is formed at the upper end portion of the case 1. The introduction port 101 is formed at an upper end portion of the main body 11 so as to penetrate the main body 11 in a direction crossing the vertical direction. In this embodiment, the introduction port 101 penetrates the main body 11 in the front-back direction orthogonal to the vertical direction. The introduction port 101 connects the curled storage space 131 and the external space of the case 1. Thereby, the cable 3 is introduced into the curled storage space 131 in the case 1 so as to penetrate the case 1 from the back of the case 1 in the front-rear direction. Here, the introduction port 101 is opened above so that the cable 3 can be easily inserted into the introduction port 101 from above. The introduction port 101 is not formed at the center of the main body 11 in the left-right direction, but is formed near the right end of the main body 11. The details will be described in the column of "(2.2) Cable routing structure", so that in a state where the crimped portion 33 of the cable 3 is introduced from the introduction port 101 into the case 1, the crimped portion 33 The central axis Z1 passes through a substantially central portion of the top surface of the case 1. In addition, the lid 12 has a protruding piece 123 protruding from the inner peripheral edge of the rear opening toward the rear in the position of the upper end portion with respect to the introduction port 101. The bottom surface of the convex piece 123 is formed in an R shape. With this, for example, even when the cable 3 is pulled upwards in a state where the cable 3 is inserted into the introduction port 101, the cable 3 is brought into contact with the bottom surface of the tab 123 to prevent the cover 12 from sinking toward the cable 3.

A rope hole 102 is formed on the top surface of the box body 1 to pull the rope body 4 out of the box body 1. The rope hole 102 is formed in the central portion of the top surface of the box body 1 so as to penetrate the upper wall of the box body 1 in the vertical direction. Thereby, the rope body 4 is pulled out of the box body 1 from the top surface of the box body 1 so as to penetrate the box body 1 from the up-down direction. Here, the rope hole 102 is formed on the boundary line between the main body 11 and the cover 12 so that the rope body 4 can be easily inserted into the rope hole 102 from the front. In the present embodiment, a pair of holes formed in the main body 11 and the cover 12 in a semicircular shape as viewed from above are completely brought into close contact with each other to form a circular rope hole 102. The winding of the rope body 4 in the box body 1 will be described later.

An opening 103 is formed on the bottom surface of the case 1 to expose the socket body 2. The opening portion 103 is a hole that penetrates the lower wall of the box body 1 in the vertical direction, and is formed in a rectangular shape that is long in the horizontal direction. Around the opening 103 in the box body 1, a pair of holding structures 112 and 122 for holding the socket body 2 are provided. The holding structure 112 is provided on the main body 11, and the holding structure 122 is provided on the cover 12. The holding structures 112 and 122 are opposed to each other in the front-rear direction with the opening 103 interposed therebetween.

Further, the box body 1 further includes a pair of hook members 104 protruding from the back of the main body 11. The pair of hooks 104 is a structure for hooking a power cord extending from a plug of an electrical device. With this, the hanging socket 10 can bear the load applied to the plug due to the weight of the power cord and the like through the hook 104 in a state where the plug is connected to the socket body 2.

Furthermore, a recess 124 for a button is formed on the front surface of the case 1 to accommodate the release button 61. The button recess 124 is located in the left-right center part of the front surface of the cover 12. An operation hole 125 through which a pressing rod 611 of a release button 61 described later passes is formed on the bottom surface of the button recess 124. The operation hole 125 penetrates the cover member 12 in the front-rear direction.

The socket body 2 includes a rectangular parallelepiped case 21 made of synthetic resin, and built-in components such as a tab receiving member stored in the case 21. The bottom surface of the housing 21 constitutes a connection surface 23 for connecting a plug. An insertion hole 231 is formed on the connection surface 23 to insert a blade (or pin) of the plug. The socket body 2 has a locking mechanism that prevents the tabs (or pins) of the plug from falling off by rotating the plug.

The socket body 2 accommodates at least a part of the socket body 1 so that the connection surface 23 is exposed from the opening 103 formed in the housing body 1. In this embodiment, the socket body 2 is held on the box body 1 so that the connection surface 23 protrudes slightly from the bottom surface of the box body 1, and most of the socket body 2 is housed on the box body 1. The socket body 2 is held in the opening portion 103 so as to be sandwiched from both sides in the front-rear direction by the holding structure 112 of the main body 11 and the holding structure 122 of the cover 12.

Furthermore, the socket body 2 has a terminal portion for connecting the cable 3. Here, the terminal portion is a plug-in type quick connection terminal that connects the cable 3 by inserting the second connection end 32 of the cable 3 through a terminal hole 211 formed on the top surface of the housing 21. In this embodiment, a pair of power wires and a single ground wire are connected to the socket body 2 in total, and three wires are connected.

The cable 3 includes a first connection end 31 (see FIG. 4), a second connection end 32, and a curled portion 33. The first connection end 31 is connected to the upper end portion 332 (refer to FIG. 4) of the curled portion 33 and is electrically connected to a power source. The first connection end 31 is housed in the flange portion 90. The second connection end 32 is connected to the lower end portion 331 of the curled portion 33 and is electrically connected to the socket body 2. The second connection end 32 is housed in the case 1. The first connection end 31 and the second connection end 32 are electrically connected via the curled portion 33.

The curled portion 33 is formed in a coil shape with a straight line (vertical axis) along the vertical direction (vertical direction) as the central axis Z1. Here, the central axis Z1 in the drawings is a mark for explanation only, and is an imaginary line without a substance. That is, the crimping portion 33 is configured such that a part of the cable 3 is formed in a spiral shape centered on the central axis Z1. The "spiral" herein refers to a curve formed by rising in one direction along a central axis Z1 orthogonal to the rotation surface while rotating. An example in the present embodiment is that the curled portion 33 is a spiral shape formed by rotating and revolving clockwise when viewed from above. The curled portion 33 has elasticity like a tension coil spring, and is configured to be stretchable along the central axis Z1. That is, the curled portion 33 is a so-called "curly curve", and is configured to be expandable and contractible along the central axis Z1. The curled portion 33 has a cylindrical shape centered on the central axis Z1 in an unexpanded state (at the time of close contact).

Further, in the present embodiment, the cable 3 is constituted by, for example, a flat cable, which is a plurality of core wires (a pair of power cables and ground wires) such as polyvinyl chloride parallel wires (VFF) at a certain interval. ) Are arranged in parallel and covered with a plurality of core wires by an insulating cover such as polyvinyl chloride. The cross-sectional shape of such a cable 3 is flat. Further, the cable 3 is formed so as to be flat in the radial direction (radiation direction) in the curled portion 33. In addition, in the present embodiment, the cable 3 is a twisted wire in which a core wire is composed of a plurality of wires.

In this embodiment, the rope body 4 is a twisted yarn made of synthetic resin. One end of the rope body 4 is fixed to the reel 5 in the box body 1, and after being wound around the reel 5, it is led out from the reel 5. A cylindrical guide roller 107 is arranged at the lower right position of the rope hole 102 in the box 1, and the rope body 4 led out from the reel 5 is turned upward by the guide roller 107. The rope body 4 turned upward by the guide roller 107 is pulled out of the box body 1 through the rope hole 102, and the tip portion of the rope body 4 is fixed to the suspension structure 9 outside the box body 1. As shown in FIG. 1, the rope body 4 is located outside the box body 1 on the central axis Z1 of the curled portion 33. In the suspension type socket 10, the winding amount of the rope body 4 is changed by rotating the reel 5, and the amount of the rope 4 to be pulled out from the box body 1 is changed, so that the suspension structure 9 to the box body 1 The distance changes. The overall length of the rope body 4 can be appropriately set according to the place where the hanging socket 10 is preset to be used, for example, it can be set to a distance from the hanging structure 9 (ceiling) to the floor from the building using the hanging socket 10 as The same length, or shorter than this distance.

The reel 5 winds and unwinds the rope body 4. The roll 5 is made of synthetic resin, for example, made of ABS resin. As shown in FIGS. 5 and 6, the reel 5 includes a first drum 51 that is cylindrical and winds the rope body 4 around the first drum 51, and a first flange 52 that extends radially from the front edge of the first drum 51. And a second flange 53 protruding radially from a rear end edge of the first drum 51. That is, the roll is formed into a so-called "tubular tube". A hook rope groove 521 is formed in the first flange 52, and one end of the rope body 4 is hooked and fixed to the hook rope groove 521. A second roller 54 is provided on the outer edge of the second flange 53 so as to project rearward. The second drum 54 has a cylindrical shape having a larger diameter than the first drum 51 and is formed concentrically with the first drum 51. At least one (here, four) recesses 541 that are recessed in the radial direction are formed on the periphery of the second drum 54.

In addition, the roll 5 has a front wall 55 at a position closer to the front side than the center in the front-rear direction and to the rear side than the first flange 52. A rotation shaft 551 is provided on the front surface and the back surface of the front wall 55 in a concentric manner with the first drum 51 (see FIGS. 6 and 8). A cylindrical third roller 552 is provided on the front surface of the front wall 55 so as to be concentric with the rotation shaft 551. The rotation shaft 551 is rotatably inserted into a shaft hole provided in the main body 11. On the other hand, a hollow cylinder 127 provided in the cover 12 is inserted into the third drum 552. Thereby, the reel 5 can be fixed to the box body 1 clockwise and counterclockwise as viewed from the front.

Furthermore, a spring holding frame 56 is provided behind the front wall 55. The spring holding frame 56 has a cylindrical shape with a diameter smaller than that of the first roller 51, and is provided inside the first roller 51 and the second roller 54 in a non-concentric manner with the first roller 51 and the second roller 54. An insertion groove 561 is formed in the spring holding frame 56, and one end of the winding spring 62 is inserted into the insertion groove 561.

The coil spring 62 is a so-called “flat coil spring”, and a metal plate having elasticity is configured to be wound in a spiral shape. When viewed from the front, the coil spring 62 has a spiral shape that rotates in a counterclockwise direction from the inside toward the outside. The “vortex” here refers to a curve that gradually moves away from the center as it wraps around on the same plane. In the coil spring 62, an outer end portion is inserted into the insertion groove 561 of the spring holding frame 56 and is held, and an inner end portion is wound and held in the holding tube 116 provided in the main body 11. The winding spring 62 applies an elastic force to the reel 5 in a direction in which the rope body 4 is wound (a direction of clockwise rotation when viewed from the front).

The stopper 7 is a member that restricts the rotation of the reel 5 and is formed by performing, for example, pressing and bending on a metal plate having elasticity. The stopper portion 7 is disposed in the box body 1 below the roll 5. The stopper portion 7 is fixed to the holding portion 8 in such a manner that the short-side direction is inclined toward the horizontal plane at a limited angle θA along the front-rear direction and the longitudinal direction. The holding portion 8 is provided on the box body 1.

As shown in FIG. 10, the stopper portion 7 includes: a fixing portion 71; an elastic portion 72; and a restricting portion 73. The fixing portion 71, the elastic portion 72, and the restriction portion 73 are arranged in the longitudinal direction of the stopper portion 7 in this order. In this embodiment, the fixing portion 71, the elastic portion 72, and the restricting portion 73 are arranged in this order from left to right.

The fixing portion 71 is a portion of the stopper portion 7 that is fixed to the holding portion 8. The fixing portion 71 is formed in an inverted U-shape when viewed from the front, and includes: a flat plate portion 711; and a first leg piece 712 and a second leg piece 713, both ends in the longitudinal direction from the stopper portion 7 of the flat plate portion 711. It protrudes toward one side (toward the lower right in FIG. 1) of the flat plate portion 711 in the thickness direction. On the other hand, as shown in FIG. 8, the holding portion 8 includes a holding frame 81 provided on the main body 11. The holding frame 81 is formed in a frame shape surrounding the fixing portion 71. The holding frame 81 has a long rectangular frame-like portion, and the long rectangular frame-like portion is provided so that the vertical direction is inclined toward the horizontal plane only to a right with a limited angle θA. Further, in the holding frame 81, a rectangular parallelepiped space (first clearance space) formed by recessing the central portion of the upper wall upward and a rectangular parallelepiped space formed by recessing the central portion of the lower wall downward is formed. Space (2nd clearance space). The holding frame 81 contacts the left end portion of the top surface of the flat plate portion 711, the right end portion of the top surface of the flat plate portion 711, the tips of the first leg pieces 712, and the tips of the second leg pieces 713, and holds the fixing portion 71 from all directions. Thereby, the fixed part 71 is hold | maintained to the holding frame 81 in the state which inclines to the right only by the limited angle (theta) A to a horizontal plane. In this embodiment, the holding frame 81 has the first clearance space and the second clearance space, but the holding frame 81 may not have the first clearance space and the second clearance space.

As shown in FIG. 10, the elastic portion 72 is continued to the fixing portion 71. The elastic portion 72 is formed of a cantilever-shaped plate spring, and an end portion on the side of the fixing portion 71 is used as a fixed end to elastically deform in the thickness direction. In a state where the elastic portion 72 is not elastically deformed, the top surface of the elastic portion 72 is flush with the top surface of the flat plate portion 711 of the fixing portion 71.

The restricting portion 73 is continued to the elastic portion 72 and is located on the opposite side of the fixing portion 71 with respect to the elastic portion 72. The restriction portion 73 includes a first restriction piece 731, a second restriction piece 732, and a connection piece 733. The second restricting piece 732 is connected to the elastic portion 72 and has a flat plate shape inclined to the elastic portion 72. The connecting piece 733 is continuous with the second restricting piece 732 and has a flat plate shape parallel to the elastic portion 72. The first restricting piece 731 is connected to the connecting piece 733 and has a flat plate shape inclined to the connecting piece 733.

As shown in FIGS. 1 and 8, the stopper portion 7 uses an end portion on the fixing portion 71 side of the elastic portion 72 as a fixed end, and the elastic portion 72 is elastically deformed to cause the restricting portion 73 to be displaced downward. The restriction piece 731 and the second restriction piece 732 are located in the recess 541 of the roll 5. Hereinafter, the position of the stopper 7 in this state is referred to as a "restricted position". In the restricted position, the first restricting piece 731 contacts the side surface on the right side of the recess 541 to restrict the rotation of the reel 5 in the direction of winding the rope body 4 (in the direction of clockwise rotation in FIG. 1). In the restricted position, the end portion on the restriction portion 73 side of the elastic portion 72 is substantially parallel to the tangential direction of the second drum 54.

Further, a hook piece 74 is provided on the stopper portion 7, and the hook piece 74 extends downward from the boundary line portion between the elastic portion 72 and the restricting portion 73 (direction in which the elastic portion 72 is elastically deformed). The hook piece 74 is formed in a J shape when viewed from the front, and has a shape that hooks on the rear end of the pressing rod 611 of the release button 61. When the pressing rod 611 is displaced rearward, the hook piece 74 is pressed backward and downward by the pressing rod 611. At this time, the rectangular supporting plate provided on the hook piece 74 restricts the rearward movement of the hook piece 74 due to the main body 11 being in contact with an inverted U-shaped rib provided behind the supporting plate. As a result, the hook piece 74 becomes displaced downward. When the hook piece 74 is pressed downward by the pressing bar 611 and displaced downward, the elastic portion 72 is elastically deformed downward, and the first restricting piece 731 and the second restricting piece 732 are separated from the recess 541. Hereinafter, the position of the stopper portion 7 in a state where the first restricting piece 731 and the second restricting piece 732 are separated from the recess 541 is referred to as a "release position". In the released position, since the first restricting piece 731 is located outside the recess 541, the reel 5 can be allowed to rotate in the direction of winding the rope body 4. Therefore, the rope body 4 is wound around the reel 5 by the restoring force of the winding spring 62.

The release button 61 displaces the stopper 7 between the restricted position and the released position in accordance with a user's operation. The release button 61 is made of a synthetic resin, for example, a polyacetal copolymer. The release button 61 has a flat rectangular parallelepiped shape and is housed in a button recess 124 of the case 1 so as to be movable in the front-rear direction. The release button 61 includes a rod-shaped pressing rod 611 having a rear end formed in a tapered shape. When the release button 61 is pressed and operated by the user, the pressing rod 611 moves backward and presses the hook piece 74 of the stopper 7 downward. As a result, the stopper 7 is displaced from the restricted position to the released position. Further, a reset spring 612 is disposed in the button recess 124, and when the user removes his / her hand from the release button 61, the release button 61 is moved forward by the restoring force of the reset spring 612. Thereby, the force applied to the hook piece 74 from the pressure bar 611 disappears, and the stopper portion 7 is displaced from the release position to the restricted position by the restoring force of the elastic portion 72. (2.2) Cable routing structure

Next, with reference to FIG. 1, FIG. 7A, and FIG. 7B, a winding structure in which the cable 3 is introduced into the case 1 from the introduction port 101 will be described in more detail. 7A and 7B are enlarged perspective views of main parts in a state where the cover member 12 is removed.

The cable 3 is introduced into the case 1 from an introduction port 101 formed at an upper end portion of the case 1. In the cable 3, the second connection end 32 in the box body 1 is connected to the socket body 2. Here, the box body 1 has a curled storage space 131 connected to the outer space of the box body 1 at the introduction port 101. The curl storage space 131 is a space for storing the lower end portion 331 of the curl portion 33 in the cable 3 as described above. That is, in the hanging socket 10 of this embodiment, the cable 3 is introduced into the case 1 from the introduction port 101 so that at least the lower end portion 331 of the curled portion 33 is accommodated in the case 1.

Since the lower end portion 331 of the curled portion 33 is a part of the curled portion 33, it has a shape that wraps around the center axis Z1. Therefore, in the present embodiment, in a plane (horizontal plane) orthogonal to the vertical direction, a lead-in path P1 having a shape around the central axis Z1 of the curled portion 33 is formed, and the cable 3 is guided to the lead-in path P1 through Inside the box body 1. The introduction path P1 is a passage of the cable 3 and connects the crimped storage space 131 and the outer space of the case 1. The introduction port 101 is formed on the introduction path P1. Thereby, as shown by the arrow A1, the cable 3 is guided around the central axis Z1 along the introduction path P1 and is introduced into the case 1 from behind the case 1. Therefore, the box body 1 can store the lower end portion 331 of the curled portion 33 in the curled storage space 131 while maintaining the shape of the curled portion 33. In this embodiment, the introduction path P1 is not physically separated from the surrounding space by a partition wall or the like. However, the introduction path P1 may be physically separated from the surrounding space by a partition wall or the like. The lead-in path P1 in FIG. 7A is only for explaining the passage of the cable 3 in the description, and has no entity. Similarly, the arrow A1 in FIG. 7B is only used to conceptually mark the appearance that the cable 3 is introduced into the box 1 from the introduction port 101 and has no substance.

Here, although the lower end portion 331 of the curled portion 33 is a part of the curled portion 33, since it is housed in the case 1, it has a shape that is affected by the width and the like of the internal space 13 of the case 1. Therefore, the lower end portion 331 of the curled portion 33 may have the same spiral shape as the portion other than the lower end portion 331 of the curled portion 33, or may have a spiral shape of a different diameter from the portion other than the lower end portion 331 of the curled portion 33 Or slightly collapsed shape.

Specifically, the box body 1 has a guide surface 105 that protrudes rearwardly from the left edge of the introduction port 101 of the main body 11 and is bent so that the more the leftward and rightward directions of the introduction port 101 become more toward the rear. Widen. As a result, an introduction path P1 is formed on the outside of the box body 1 with respect to the introduction port 101 so as to be curved around the central axis Z1 along the guide surface 105.

In addition, the box body 1 includes a clamping portion 106 that holds the lower end portion 331 of the curled portion 33 by sandwiching a part of the lower end portion 331 of the curled portion 33 in the curled storage space 131. In the present embodiment, the holding portion 106 is composed of a first holding piece 113 and a second holding piece 126 (see FIG. 6) located on both sides in the front-rear direction of the introduction path P1. The first holding piece 113 is provided on the main body 11, and the second holding piece 126 is provided on the cover 12. The first holding piece 113 and the second holding piece 126 are located between the introduction port 101 and the central axis Z1 in the left-right direction. In addition, the tip portion (front end portion) of the first holding piece 113 projects forward from the front surface (opening surface) of the main body 11. In contrast, the tip portion (rear end portion) of the second holding piece 126 is located at a position that does not protrude from the rear surface (opening surface) of the cover 12, that is, it is located further forward than the rear surface of the cover 12. Thereby, the lower end portion 331 of the curled portion 33 held by the clamp portion 106 is guided around the central axis Z1 so that a large circle surrounds the center axis Z1 along the inner peripheral surface of the cover 12 from the introduction port 101. Storage space 131. Therefore, an introduction path P1 is formed on the inner side of the box body 1 (that is, the curled storage space 131) with respect to the introduction port 101, and is bent so as to pass around the center axis Z1 through the clamping portion 106.

As described above, the curl storage space 131 is connected to the socket storage space 132 through the relay space 133 and the winding space 134. The relay space 133 includes an inlet 135 connected to the curled storage space 131 and an outlet 136 connected to the socket storage space 132. In this embodiment, the inlet 135 is directly connected to the curl storage space 131, and the outlet 136 is connected to the socket storage space 132 via the winding space 134. In this embodiment, the relay space 133 is located more to the left than the center axis Z1, and the entrance 135 is also located to the left of the center axis Z1. Here, the inlet 135 is formed by a space between a pair of inlet hubs 114 formed in the case 1. The outlet 136 is formed by a space between a pair of outlet hubs 115 formed in the case 1. Each of the pair of inlet hubs 114 and the pair of outlet hubs 115 is the same as the clamping portion 106 and holds the cable 3 by sandwiching a part of the cable 3.

The pair of inlet hubs 114 are located to the left of the curl storage space 131. The pair of inlet hubs 114 are arranged in an up-down direction. Thereby, the entrance 135 of the relay space 133 is comprised so that it may pass through the cable 3 in the direction which cross | intersects the up-down direction. In this embodiment, the relative directions of the pair of inlet hubs 114 are not parallel to the vertical direction, and the upper inlet hub 114 is located above and to the left of the lower inlet hub 114. Therefore, the cable 3 passing through the entrance 135 of the relay space 133 passes through the pair of entrance hubs 114 from the curled storage space 131 to the lower left.

On the other hand, the pair of outlet hubs 115 are located below the pair of inlet hubs 114. The pair of outlet hubs 115 are arranged in the left-right direction. Thereby, the exit 136 of the relay space 133 is comprised so that it may pass through the cable 3 along an up-down direction. Therefore, the cable 3 passing through the outlet 136 of the relay space 133 passes through the pair of outlet hubs 115 downward from the relay space 133. Therefore, between the entrance 135 and the exit 136 in the relay space 133, the extension direction of the cable 3 is changed from "bottom left" to "bottom".

The interval between the pair of outlet hubs 115 is set to be smaller than the interval between the pair of inlet hubs 114. In this embodiment, the cable 3 is a flat cable having a flat cross-sectional shape. The distance between the pair of inlet hubs 114 is set to be approximately the same as the long side dimension of the cross-sectional shape of the cable 3. The distance between the pair of outlet hubs 115 is set to be approximately the same as the short side dimension of the cross-sectional shape of the cable 3. Thereby, at the entrance 135 of the relay space 133, the thickness direction of the cable 3 (the short-side direction of the cross-sectional shape of the cable 3) becomes the direction along the front-rear direction. On the other hand, at the exit 136 of the relay space 133, the thickness direction of the cable 3 (the short-side direction of the cross-sectional shape of the cable 3) becomes a direction along the left-right direction. That is, the thickness direction of the cable 3 at the entrance 135 of the relay space 133 and the thickness direction of the cable 3 at the exit 136 of the relay space 133 cross each other. In other words, between the entrance 135 and the exit 136 of the relay space 133, the cable 3 is held in a twisted state.

In this embodiment, both the pair of inlet hubs 114 and the pair of outlet hubs 115 are provided on the main body 11. However, the tip portions (front end portions) of the pair of inlet hubs 114 protrude forward from the front surface (opening surface) of the main body 11. In contrast, the tip portions (front end portions) of the pair of outlet hubs 115 are provided substantially flush with the front surface (opening surface) of the main body 11 so as not to protrude from the front surface (opening surface) of the main body 11. Thereby, at the entrance 135 of the relay space 133, the pair of entrance hubs 114 can hold the cable 3 in the cover 12. On the other hand, at the exit 136 of the relay space 133, a pair of exit hubs 115 can hold the cable 3 in the main body 11.

The cable 3 introduced from the outlet 136 of the relay space 133 into the winding space 134 passes through at least one side in the left-right direction of the reel 5 and is guided to the socket storage space 132. In the present embodiment, the cable 3 is divided into two branches in the winding space 134, and is guided to the socket accommodating space 132 through both sides of the reel 5 in the left-right direction. For example, a power cord and a ground wire on one side pass through the left side of the reel 5, and a power cord on the other side pass through the right side of the reel 5 and are respectively led to the socket storage space 132. In the socket storage space 132, a second connection end 32 serving as a tip portion (lower end portion) of the cable 3 is electrically connected to the socket body 2. (2.3) Winding mechanism

Next, the winding mechanism and operation of the rope body 4 using the reel 5 will be described in more detail with reference to FIGS. 1 and 8. FIG. 8 is a cross-sectional view of a main part in a state where the cover 12 is removed from the suspension socket 10 according to the present embodiment.

As shown in FIG. 8, the reel 5 is rotatably and rotatably held in the case 1 with an axis (specifically, a rotation axis 551) along the front-rear direction as a center.

As described above, the winding spring 62 is disposed inside the reel 5, and the reel 5 receives the winding spring 62 from the winding spring 62 in a clockwise direction when viewed from the front (the direction of the imaginary arrow B1 shown in FIG. 8; hereinafter referred to as " 1st direction ").

On the other hand, one end of the rope body 4 is fixed by being hooked to the hook groove 521 of the reel 5, and is wound around the first drum 51 in a counterclockwise rotation when viewed from the front, and is wound from the first drum 51. The upper right portion of the frame is guided to the upper left along the tangent of the first drum 51 (refer to FIG. 1). The rope body 4 led out from the reel 5 is pulled out of the box body 1 through the rope hole 102, and the tip end portion thereof is fixed to the suspension structure 9. Therefore, the reel 5 receives the load from the rope body 4 due to the load applied to the object (box 1 and the like) supported by the rope body 4 and rotates counterclockwise when viewed from the front (the direction of the imaginary arrow B2 shown in FIG. 8). ; Hereinafter referred to as the "second direction").

A stopper 7 is disposed in the case 1. In the restriction position of the stopper portion 7, the restriction portion 73 is located in the recess 541. The first restricting piece 731 and the second restricting piece 732 of the restricting portion 73 face the right side and the left side of the recess 541 in the recess 541, respectively.

When the force in the second direction from the rope body 4 is smaller than the force in the first direction caused by the winding spring 62, the reel 5 is intended to rotate in the first direction (the direction of the arrow B1 in FIG. 8). At this time, as shown in FIG. 8, the side surface on the right side of the recess 541 is in contact with the first restricting piece 731, and a first direction force is applied to the first restricting piece 731 from the roll 5. At the same time, as a reaction of this force, a force in the second direction is applied to the roll 5 from the first restricting piece 731.

Here, as shown in FIGS. 8 and 10, the first predetermined angle θ1 between the first restricting piece 731 and the connecting piece 733 of the stopper portion 7 is set to less than 90 °. The angle between the right side surface of the recess 541 and the bottom surface of the recess 541 is an acute angle. Therefore, when the reel 5 is to be rotated in the first direction, the force applied from the reel 5 (the right side of the recess 541) to the first restricting piece 731 becomes more than the tangential direction of the reel 5 (the second roller 54). Upward force. Therefore, even if the force applied to the first restricting piece 731 from the roll 5 becomes large, this force is a force in a direction that displaces the first restricting piece 731 upward (toward the center side of the roll 5), so the restricting portion 73 does not Will detach from the recess 541. As a result, when the force from the rope body 4 is smaller than the force of the winding spring 62, the force in the first direction caused by the winding spring 62 in the reel 5 is caused by the rope body 4 and the first restricting piece 731. The force in the second direction is balanced. Thereby, the roll 5 is not rotated, and the vertical position of the case 1 is held.

On the other hand, when the force in the second direction from the rope body 4 is greater than the force in the first direction caused by the winding spring 62, the reel 5 is intended to rotate in the second direction (direction of arrow B2 in FIG. 8). . At this time, the left side surface of the recess 541 is in contact with the second restricting piece 732, and a second direction force is applied to the second restricting piece 732 from the roll 5. At the same time, as a reaction of this force, a force in the first direction is applied to the roll 5 from the second restricting piece 732.

Here, the fixing portion 71 is inclined only to the horizontal plane by a limited angle θA so that the end portion on the restriction portion 73 side of the elastic portion 72 is substantially parallel to the tangential direction of the second drum 54. As shown in FIGS. 8 and 10, the second predetermined angle θ2 between the second restricting piece 732 of the stopper portion 7 and the end portion on the restricting portion 73 side of the elastic portion 72 is set to a value greater than 90 °. . The angle between the left side surface of the recess 541 and the bottom surface of the recess 541 is an obtuse angle. Therefore, when the reel 5 is to be rotated in the second direction, the force applied from the reel 5 (the left side surface of the recess 541) to the second restricting piece 732 becomes more tangential to the reel 5 (the second roller 54). For downward force. Therefore, if the force applied from the roll 5 to the second restricting piece 732 increases, this force becomes a force in a direction to displace the second restricting piece 732 downward (outward of the roll 5 in the radial direction), so the restricting portion 73 Displaces downward and detaches from the recess 541. Therefore, if the user pulls the box body 1 downward, for example, and the force in the second direction applied from the rope body 4 to the roll 5 is increased, the second restricting piece 732 is separated from the recess 541 and the roll 5 Rotate in the second direction (the direction in which the rope body 4 is released).

As described above, when the stopper 7 is located at the restricted position, the suspension socket 10 of this embodiment prohibits the rotation of the reel 5 in the first direction and allows the rotation of the reel 5 in the second direction. In short, the reel 5 of the suspension-type socket 10 of this embodiment is restricted in the direction of rotation by the ratchet mechanism so that it can rotate only in the second direction (the direction in which the rope body 4 is released).

In addition, when the user moves the stopper portion 7 to the release position by pressing the operation release button 61, the restriction portion 73 is disengaged from the recess 541. At this time, the reel 5 does not receive a force from the stopper 7 and is allowed to rotate in both directions of the first direction and the second direction. Therefore, the user can use the restoring force of the winding spring 62 to wind the rope body 4 inside the box body 1 to raise the box body 1, and also can pull the box body 1 downward by resisting the restoring force of the winding spring 62. , The rope body 4 is released from the reel 5 and the box body 1 is lowered. When the user removes his / her hand from the release button 61, the stopper portion 7 returns to the restricted position, the restricted portion 73 is located in the recess 541 of the roll 5, and the restricted portion 73 can restrict the rotation of the roll 5 again.

As described above, in the suspension-type socket 10 of this embodiment, the second restricting piece 732 is provided in the stopper portion 7. The second restricting piece 732 has a function of restricting the reel 5 from rotating in the direction of releasing the rope body 4 and receiving the rotational force of the reel 5 in the direction of releasing the rope body 4 to displace the second restricting piece 732 outside the recess 541. Features. Hereinafter, this second limiting piece 732 will be described in more detail.

When the force in the second direction applied to the reel 5 from the rope body 4 is greater than the force in the first direction applied to the reel 5 from the winding spring 62, the second restricting piece 732 applies a combined force of these forces Force in the 2nd direction. Of this resultant force, the component of the direction in which the second restricting piece 732 is to be disengaged from the recess 541 (the force in the normal direction of the second roller 54) increases with the angle of the second restricting piece 732 to the tangential direction of the second roller 54 The smaller it is near 90 °. That is, the closer the angle of the tangential direction of the second restricting piece 732 to the second drum 54 is to 90 °, the more difficult it is for the restricting portion 73 to come off the recess 541. In this embodiment, in order to have a function of restricting the rotation of the reel 5 in the direction of releasing the rope body 4, the second restricting piece 732 sets the angle of the second restricting piece 732 to the tangential direction of the second drum 54 to be close to 90 ° angle.

Here, as shown in FIG. 8, when the stopper portion 7 is in the restricted position, the end portion on the restriction portion 73 side of the elastic portion 72 is substantially parallel to the tangent direction of the second drum 54, and the fixed portion 71 is only horizontal to the horizontal surface. The inclination defines the angle θA. The angle between the second restricting piece 732 and the end portion on the restricting portion 73 side of the elastic portion 72 is set to the second predetermined angle θ2. That is, in the stopper portion 7 of this embodiment, the second restricting piece 732 is at the restricting position, and is inclined only about the second predetermined angle θ2 with respect to the tangential direction of the second drum 54. In the present embodiment, the magnitude of the second predetermined angle θ2 is set to an angle larger than 90 ° and close to 90 °.

In a specific example, the limited angle θA is 15 °, and the second predetermined angle θ2 is 110 °. Thereby, the second restricting piece 732 can suppress this rotation when the reel 5 is intended to rotate in the second direction. That is, even when a load exceeding the restoring force of the coil spring 62 is applied to the case 1, the load can be supported by the stopper 7. (2.4) Protective structure

As described above, in the present embodiment, the second restricting piece 732 is provided in the stopper 7. Even if the load applied to the case 1 exceeds the restoring force of the winding spring 62, the second restricting piece 732 can suppress the reel. 5 Rotate in a direction to release the rope body 4. In particular, if the width of the stopper 7 (the length of the front-back direction) is increased and the elastic force of the elastic portion 72 is increased, a larger load can be supported by the second restricting piece 732. However, at this time, a force due to a load applied to the case 1 is applied to the fixing portion 71 and the holding portion 8 via the second restricting piece 732. Therefore, the pendant socket 10 of the present embodiment further includes a protective structure for supporting a force applied to the fixing portion 71 and the holding portion 8 via the second restricting piece 732. Hereinafter, this protection structure will be described with reference to FIGS. 8, 9A, 9B, and 10.

As described above, the stopper portion 7 is formed by pressing and bending a metal plate. As shown in FIGS. 9A and 9B, a concave portion 714 is formed on a part of the outer peripheral edge of the fixing portion 71 (specifically, the flat plate portion 711) made of a metal plate. Further, a convex portion 82 is provided inside the holding frame 81 in the main body 11. The convex portion 82 has a shape corresponding to the concave portion 714 of the stopper portion 7 and is pressed into the concave portion 714. In this embodiment, the raised portion 82 is a rib extending from the upper left to the lower right when viewed from the front. As described above, by inserting the convex portion 82 into the concave portion 714, the displacement in the front-rear direction of the restricting portion 73 centered on the fixed portion 71 can be suppressed.

As shown in FIGS. 9A and 9B, a contact piece 715 is provided on the fixing portion 71. The contact piece 715 protrudes from the end edge of the recessed portion 714 in the thickness direction of the fixed portion 71 and contacts the protruding portion 82 from one side in the longitudinal direction of the stopper portion 7. Specifically, the contact piece 715 protrudes downward from the edge on the left side of the recessed portion 714 and contacts the side surface on the left side of the protruding portion 82. When the second restricting piece 732 receives a force in the second direction from the roll 5, the stopper 7 is stretched upward and right by the roll 5. Therefore, from the left end edge portion of the recess 714 of the stopper 7, the The raised portion 82 applies a force toward the upper right. In this embodiment, since the stopper 7 includes the contact piece 715, the force applied to the convex portion 82 from the edge portion of the recessed portion 714 can be dispersed by the contact piece 715. Furthermore, in this embodiment, the contact piece 715 is formed by bending an end edge portion of the recessed portion 714 of the stopper 7, and the boundary between the end edge portion of the recessed portion 714 and the contact piece 715 is formed in an R shape. Thereby, compared with the case where the edge part of the recessed part 714 and the boundary line of the contact piece 715 are not R-shaped, the possibility that the edge part of the recessed part 714 may fall into the convex part 82 becomes low.

As shown in FIGS. 9A, 9B, and 10, in the suspension socket 10 of this embodiment, the tips of the first leg piece 712 and the tips of the second leg piece 713 are chamfered. In particular, the tip of the first leg piece 712 near the restriction portion 73 is chamfered. Therefore, even if a force in the second direction is applied to the second restricting piece 732 from the roll 5, the stopper 7 is stretched upward and right by the roll 5, and the tips of the leg pieces 712 and 713 may fall into the holding frame 81. Sex becomes low. The tips of these leg pieces 712 and 713 may be formed in an R shape or a C shape.

As shown in FIG. 8, the holding frame 81 includes a first contact portion 831 and a second contact portion 832. The first contact portion 831 and the second contact portion 832 are opposed to each other in the lengthwise direction of the stopper portion 7 of the flat plate portion 711 of the stopper portion 7 and are in surface contact with the flat plate portion 711. Thereby, rotation of the fixing portion 71 in a plane perpendicular to the front-rear direction (in a plane parallel to the paper surface in FIG. 8) can be suppressed, and inclination of the fixing portion 71 around the longitudinal direction of the stopper portion 7 can be suppressed. Specifically, the first contact portion 831 is in surface contact with the right end portion of the top surface of the flat plate portion 711, and the second contact portion 832 is in surface contact with the left end portion of the top surface of the flat plate portion 711. In order to widen the contact area between the first contact portion 831 and the second contact portion 832 and the flat plate portion 711, the interval between the first contact portion 831 and the second contact portion 832 is set smaller than that of the first leg piece 712 and the first The space between the two leg pieces 713. In this embodiment, the interval between the first contact portion 831 and the second contact portion 832 is set to about 1/2 of the interval between the first leg piece 712 and the second leg piece 713.

In addition, as shown in FIG. 8, first to seventh reinforcing ribs 811 to 817 are set on the outer peripheral portion of the holding frame 81. The first reinforcing rib 811 protrudes from the top surface of the outer peripheral portion of the holding frame 81 in a direction orthogonal to the top surface (upper left). The second reinforcing rib 812 protrudes from the left surface of the outer peripheral portion of the holding frame 81 toward the upper left. The third reinforcing rib 813 protrudes from the right side of the outer peripheral portion of the holding frame 81 toward the upper right. The fourth reinforcing rib 814 projects from the left side of the outer peripheral portion of the holding frame 81 toward the lower left. The fifth reinforcing rib 815 protrudes from the right side of the outer peripheral portion of the holding frame 81 toward the lower right. The sixth and seventh reinforcing ribs 816 and 817 protrude from the bottom surface of the outer peripheral portion of the holding frame 81 in a direction orthogonal to the bottom surface (lower right).

In particular, in the holding frame 81, a fifth reinforcing rib 815 is provided on an outer peripheral portion of a portion that is in contact with the tip of the first leg piece 712. Further, in the holding frame 81, a fourth reinforcing rib 814 is provided on an outer peripheral portion of a portion that is in contact with the tip of the second leg piece 713. With this, even if the second restricting piece 732 receives a force in the second direction from the reel 5, the stopper portion 7 is stretched to the upper right by the reel 5, and the fourth reinforcing rib 814 and the fifth reinforcing rib 815 It is possible to prevent, for example, deformation of the holding frame 81.

Since the pendant socket 10 according to the present embodiment is provided with the above-mentioned protection structure, even when a force is applied to the second restricting piece 732 from the reel 5, it is possible to suppress, for example, a positional deviation of the fixing portion 71. Moreover, since the suspension socket 10 of this embodiment is provided with the said protective structure, the stopper part 7 which receives the restoring force of the winding spring 62 can be hold | maintained more firmly. Therefore, the thickness of the coil spring 62 can be increased, and the restoring force of the coil spring 62 can be increased, and an unintended drop of the case can be more suppressed. (3) advantages

As described above, the suspension socket 10 of the first aspect includes the case 1, the socket body 2, and the cable 3. The box body 1 is suspended from a suspension structure 9. The socket body 2 has a connection surface 23 formed with an insertion hole 231 for inserting a tab. The socket body 2 accommodates at least a part of the socket body 1 so that the connection surface 23 is exposed from the opening 103 formed in the housing body 1. The cable 3 includes a crimped portion 33, a first connection end 31, and a second connection end 32. The curled portion 33 is formed in a coil shape with a straight line in the vertical direction as the central axis Z1. The first connection end 31 is connected to the upper end portion 332 of the curled portion 33 and is electrically connected to a power source. The second connection end 32 is connected to the lower end portion 331 of the curled portion 33 and is electrically connected to the socket body 2. The cable 3 is introduced into the box body 1 from the introduction port 101 formed at the upper end portion of the box body 1, and the second connection end 32 is connected to the socket body 2 in the box body 1. The box body 1 has a curled storage space 131 which is connected to the outer space of the box body 1 at the introduction port 101 and houses a lower end portion 331 of the curled portion 33.

According to this configuration, the cable 3 is introduced into the box body 1 from the introduction port 101 formed at the upper end portion of the box body 1, and the lower end portion 331 of the crimped portion 33 in the cable 3 is housed in the crimped portion of the box body 1. Storage space 131. Therefore, even if the tension acts on the case 1 from the cable 3, the direction in which the tension acts becomes the direction along the central axis Z1 of the curled portion 33, and the inclination of the case 1 to the vertical direction can be suppressed. In addition, since the lower end portion 331 of the curled portion 33 is housed in the case body 1, interference between the curled portion 33 and the case body 1 is unlikely to occur, and interference caused by the curled portion 33 and the case body 1 can be suppressed. The box body 1 is tilted in the vertical direction. As a result, it is possible to provide the hanging socket 10 which can suppress the vertical tilt of the case 1.

In the suspension socket 10 of the second aspect, which is in the first aspect, the introduction port 101 is formed on the introduction path P1 for connecting the curled storage space 131 and the external space of the case 1. The introduction path P1 is a shape formed by revolving around the central axis Z1 of the curled portion 33 in a plane orthogonal to the vertical direction. According to this configuration, the cable 3 is guided around the central path Z1 of the curled portion 33 around the central axis Z1 in a plane orthogonal to the vertical direction, and is introduced into the case 1 from the introduction port 101. Therefore, in the introduction port 101, the shape (spiral shape) of the curled portion 33 is not easily collapsed, and the load acting on the case 1 from the cable 3 can be suppressed to be small. However, this configuration is not necessary for the suspension socket 10, and the introduction path P1 may be appropriately omitted.

In the hanging socket 10 of the third aspect, which is connected to the first or second aspect, the box body 1 further has a clamping portion 106 that clamps the lower end portion of the curled portion 33 in the curled storage space 131. Part 331 holds the lower end portion 331 of the curled portion 33. According to this configuration, since the lower end portion 331 of the curled portion 33 can be held by the curled storage space 131, the clamp portion 106 has a function of preventing the cable 3 from coming loose from the case 1. Furthermore, since the lower end portion 331 of the curled portion 33 is held, even if tension is applied to the case 1 from the cable 3, the lower end portion 331 of the curled portion 33 can be restrained from moving in the case 1. However, this configuration is not a necessary configuration of the hanging socket 10, and the clamping portion 106 may be appropriately omitted.

In the suspension socket 10 of the fourth aspect, which is in any of the aspects 1 to 3, the portion of the curled portion 33 that is located outside the box body 1 is configured to be able to follow the box body 1 and the suspension The distance between the structures 9 is expanded and contracted along the central axis Z1 of the curled portion 33. According to this configuration, when the distance between the box body 1 and the suspension structure 9 is changed by the expansion and contraction of the curled portion 33, for example, the loosening of the cable 3 is prevented. However, this configuration is not a necessary configuration of the suspension socket 10, and the curled portion 33 may not be extended or contracted.

In the fifth aspect of the hanging socket 10, which is in any of the first to fourth aspects, the box body 1 further includes: a socket storage space 132 containing the socket body 2; and a relay space 133 located at Between the curl storage space 131 and the socket storage space 132. In this case, the relay space 133 has an inlet 135 connected to the curled storage space 131 and an outlet 136 connected to the socket storage space 132. In this case, the entrance 135 of the relay space 133 is configured to pass through the cable 3 in a direction crossing the vertical direction, and the exit 136 of the relay space 133 is configured to pass through the cable 3 in the vertical direction. According to this configuration, since the extension direction of the cable 3 is switched between the inlet 135 and the outlet 136 in the relay space 133, the cable 3 can be strongly prevented from being loosened from the box body 1. However, this configuration is not a necessary configuration of the hanging socket 10, and the relay space 133 may be appropriately omitted.

In the hanging socket 10 of the sixth aspect, which is in the fifth aspect, the cross-sectional shape of the cable 3 is flat, and the thickness direction of the cable 3 in the entrance 135 of the relay space 133 and the relay The thickness directions of the cables 3 at the exit 136 of the space 133 cross each other. According to this configuration, since the cable 3 is held in a twisted state between the inlet 135 and the outlet 136 in the relay space 133, the cable 3 is prevented from being loosened from the case 1 more firmly. However, this configuration is not necessary for the suspension socket 10, and the cross-sectional shape of the cable 3 may not be flat.

The hanging socket 10 according to the seventh aspect is attached to any of the first to sixth aspects, and further includes a rope body 4 that is pulled out from the rope hole 102 formed on the top surface of the box body 1 to the box body. 1 and fixed to the suspension structure 9 outside the box body 1; and the roll 5. The roll is stored in the box body 1 and winds the rope body 4. The rope body 4 is located outside the box body 1 on the central axis Z1 of the curled portion 33. According to this configuration, since the rope body 4 holding the case body 1 in a state where the case body 1 is suspended from the suspension structure 9 is located on the central axis Z1 of the curled portion 33, the vertical direction of the case body 1 can be further suppressed. Of tilt. However, this configuration is not necessary for the suspension socket 10, and the rope body 4 and the reel 5 may be appropriately omitted.

Further, the (ceiling) pendant socket described in Document 1 [Japanese Laid-Open Patent Publication No. 2007-193995] includes a lifting mechanism that raises and lowers the box body (body) by changing the length of the rope body. The lifting mechanism includes a reel (winding reel) that winds the rope body by rotation; a stopper (stopper spring) that restricts the rotation of the reel; and a camshaft to release the stopper. The restriction of the roll causes the box to rise. The reel is biased in the direction of winding the rope body by a winding spring (flat coil spring).

In the pendant socket described in Document 1, a plurality of recesses (snap recesses) are formed at regular intervals on the outer periphery of the lower drum of the reel, and the stopper elastically contacts the outer periphery of the lower drum including the recess. surface. When the drum is rotated in the direction of releasing the rope body, the stopper is not locked in the recess, and the drum is rotated. On the other hand, when the reel is rotated in the direction of winding the rope body, the tip of the stopper is fitted into the recess to restrict the rotation of the reel.

In the pendant socket described in Document 1, the weight of the object (plug and electric wire of the electrical equipment connected to the socket body) suspended from the box body is applied to the drum so that the drum is in the direction of releasing the rope body. force. In the pendant socket described in Document 1, the reel of the coil spring prevents the reel from rotating in the direction of releasing the rope body. Therefore, if an object that can support the weight exceeding the restoring force of the winding spring is hung on the box body, the reel is rotated in the direction of releasing the rope body, and the box body may be lowered to a lower position than intended. . Based on the above-mentioned reasons, it has been an issue to suppress an unintended drop of the case. Such a problem is solved by the eighth to fifteenth aspects.

That is, the eighth aspect of the suspension socket 10 is attached to any of the first to seventh aspects, and includes: a rope body 4; a reel 5: a winding spring 62: a stopper 7; and a release Button 61. The rope body 4 is pulled out of the box body 1 through a rope hole 102 formed in the box body 1. The rope body 4 is fixed to the suspension structure 9 outside the box body 1. The reel 5 is configured to wind the rope body 4. The reel 5 is housed in the case 1 so as to be rotatable in a direction of winding the rope body 4 and a direction of releasing the rope body 4. The winding spring 62 applies an elastic force to the reel 5 in a direction that rotates in the direction in which the rope body 4 is wound. The stopper 7 is housed in the case 1. The stopper 7 is displaced between a restriction position that restricts the rotation of the reel 5 and a release position that permits the rotation of the reel 5. The release button 61 displaces the stopper 7 between the restricted position and the released position. The roll 5 has at least one recess 541 that is recessed in the radial direction at the periphery of the roll 5. The stopper 7 includes a first restricting piece 731 and a second restricting piece 732 located in the recessed portion 541 of the roll 5 in the restricted position. The first restricting piece 731 has a function of restricting the reel 5 from rotating in the direction of winding the rope body 4 in the restricted position. The second restricting piece 732 has a function of restricting the reel 5 from rotating in the direction of releasing the rope body 4 in the restricted position, and receiving the rotational force of the reel 5 in the direction of releasing the rope body 4 to cause the second restricting piece 732 to The function of the external displacement of the recess 541.

According to this configuration, since the stopper 7 is provided with the second restricting piece 732, even if the reel 5 receives the restoring force exceeding the winding spring 62 from the rope body 4, the reel 5 can be restrained from releasing the Direction of rotation. That is, even when an object exceeding the restoring force of the winding spring 62 is suspended from the case 1, the stopper 7 can suppress the rotation of the reel 5 in the direction in which the rope body 4 is released. That is, it is possible to provide the hanging-type socket 10 capable of suppressing the lowering of the unintended box 1.

Here, the hanging socket 10 of the eighth aspect does not have any of the first to seventh aspects as a necessary configuration. That is, in the hanging socket 10 of the eighth aspect, the cable 3 only needs to be electrically connected to the power source and the socket body 2, and the cable 3 does not need to have the curled portion 33, the first connection end 31, and the second connection end 32. . The configuration in which the cable 3 is introduced into the box body 1 from the introduction port 101 formed at the upper end of the box body 1 and the second connection end 32 in the box body 1 is connected to the socket body 2 is not the eighth aspect. The necessary configuration of the suspension socket 10. In addition, the case 1 has a configuration in which the storage space 131 is curled, and is not a necessary configuration for the hanging socket 10 in the eighth aspect.

In the ninth aspect of the suspension-type socket 10, which is in the eighth aspect, the stopper portion 7 is formed in a long shape. In this case, the stopper portion 7 further includes a plate spring-like elastic portion 72 and a fixing portion 71. The fixing portion 71 is connected to the first restricting piece 731 and the second restricting piece 732 via the elastic portion 72. In this case, the box body 1 has a holding portion 8 in a restricted position such that the first restricting piece 731 and the second restricting piece 732 of the stopper portion 7 are located in the recess 541 of the roll 5. Fixed and fixed portion 71. According to this configuration, it is possible to simply configure a suspension type socket 10 that can provide an unintentional drop of the case. However, this configuration is not a necessary configuration of the suspension socket 10, and the stopper portion 7 may have other shapes.

In the hanging socket 10 of the tenth aspect, it is the ninth aspect, the fixing portion 71 is made of a metal plate, and a recess 714 is provided on a part of the outer periphery of the fixing portion 71 on the inner surface of the box body 1, A raised portion 82 fitted in the recessed portion 714 is provided. With this configuration, it is possible to suppress the positional displacement of the fixing portion 71. However, this configuration is not a necessary configuration of the hanging socket 10, and the recessed portion 714 and the protruding portion 82 may be appropriately omitted.

In the hanging socket 10 of the eleventh aspect, it is the tenth aspect, and the stopper 7 further includes a contact piece 715 that is convex from the end edge of the recessed portion 714 toward the thickness direction of the fixed portion 71. Out and in contact with the raised portion 82. With this configuration, the contact piece 715 can disperse the force applied to the convex portion 82 from the edge portion of the concave portion 714 of the stopper portion 7. However, this configuration is not a necessary configuration for the suspension socket 10, and the contact piece 715 may be appropriately omitted.

In the twelfth aspect of the hanging socket 10, which is any one of the ninth to eleventh aspects, the fixing portion 71 includes: a flat plate portion 711; and a first leg piece 712 and a second leg piece 713. , Protruding from the both ends in the longitudinal direction of the stopper portion 7 in the flat plate portion 711 toward one side in the thickness direction. In this case, the holding portion 8 includes a frame-shaped holding frame 81 formed to surround the fixing portion 71. In this case, the holding frame 81 includes a first contact portion 831 and a second contact portion 832 that are opposed to the both ends in the longitudinal direction of the stopper portion 7 in the flat plate portion 711. In this case, the interval between the first contact portion 831 and the second contact portion 832 is narrower than the interval between the first leg piece 712 and the second leg piece 713, and the first contact portion 831 and the second contact portion 832 and the flat plate The portion 711 becomes a surface contact. With this configuration, it is possible to suppress the positional displacement of the fixing portion 71. However, this configuration is not a necessary configuration of the hanging socket 10, and the fixing portion 71 and the holding portion 8 may have shapes other than the above-mentioned shapes.

In the hanging socket 10 of the thirteenth aspect, in the twelfth aspect, at least one of the tip of the first leg piece 712 and the tip of the second leg piece 713 is chamfered. According to this configuration, the portion of the holding frame 81 that is in contact with the tips of the leg pieces 712 and 713 can be protected. However, this configuration is not a necessary configuration of the hanging socket 10, and the tips of the first leg piece 712 and the second leg piece 713 may not be chamfered.

In the hanging socket 10 of the fourteenth aspect, which is attached to the twelfth or thirteenth aspect, the holding frame 81 is in contact with the tip of the first leg piece 712 and in contact with the tip of the second leg piece 713. A reinforcement rib (814, 815) is provided on an outer peripheral portion of at least one of the portions. According to this configuration, the portion of the holding frame 81 that is in contact with the tips of the leg pieces 712 and 713 can be protected. However, this structure is not a necessary structure for the suspension socket 10, and the reinforcing ribs (814, 815) may be appropriately omitted.

The hanging socket 10 of the fifteenth aspect is any one of the eighth to the fourteenth aspects, and the cable 3 has a curled portion 33, a first connection end 31, and a second connection end 32. The curled portion 33 is formed in a coil shape with a straight line in the vertical direction as the central axis Z1. The first connection end 31 is connected to an upper end portion of the curled portion 33 and is electrically connected to a power source. The second connection end 32 is connected to the lower end portion of the curled portion 33 and is electrically connected to the socket body 2. In this case, the cable 3 is introduced into the box body 1 from the introduction port 101 formed at the upper end portion of the box body 1, and the second connection end 32 in the box body 1 is connected to the socket body 2. According to this configuration, the cable 3 is expanded and contracted by the curling portion 33, and when the distance between the box 1 and the suspension structure 9 is changed, the cable 3 can be prevented from being loosened and the like. However, this structure is not a necessary structure for the suspension socket 10, and the cable 3 may not have the curled portion 33. (4) Modifications

The hanging socket 10 of the above embodiment is only an example of the present invention, and the present invention is not limited to the above embodiment. Except for the above embodiment, various changes can be made in accordance with the design and the like as long as it does not exceed the scope of the technical idea of the present invention. Hereinafter, modifications of the above embodiment will be exemplified.

The hanging socket 10 is not limited to indoor use, and may be an outdoor socket used outside a building. In addition, the hanging socket 10 is not only a socket, but also a switch, a human sensor, and a timer for turning on and off electricity, and may have a function of displaying a power state and an overcurrent blocking function. Furthermore, the socket body 2 of the hanging socket 10 may not have a locking mechanism for preventing the plug from falling out. In addition, the socket body 2 is not limited to an additional ground electrode, and it is easy to have no ground. For example, a socket for 200V AC or DC can be used. The socket body 2 is not limited to a 2-hole socket, for example, a single-hole socket or a 3-hole socket may be used. The socket body 2 is not limited to an A-type socket, but may be a socket that can be connected to a plug having a pin-shaped blade, such as a B-type or a C-type socket.

The suspension structure 9 that suspends the suspension socket 10 is not limited to the ceiling of the building. For example, structures such as beams and columns of the building may be used, and structures such as wiring ducts fixed to the ceiling may be used.

The cable 3 is not limited to flat cables such as polyvinyl chloride parallel wires (VFF), and may be, for example, round cables. A plurality of core wires (a pair of power wires and ground wires) are not insulated by one. Covers can be integrated. The core wire of the cable 3 may be a single wire made of one conductor.

In addition, the outlet 136 of the relay space 133 may be configured so as to pass through the cable 3 in the vertical direction, and the direction in which the cable 3 passes through the outlet 136 may be slightly inclined with respect to the vertical direction. Therefore, the relative directions of the pair of outlet hubs 115 may be non-parallel with respect to the left-right direction. The entrance 135 of the relay space 133 may be configured so as to pass through the cable 3 in a direction crossing the vertical direction. For example, the opposing directions of the pair of inlet hubs 114 may be parallel to the vertical direction.

1‧‧‧ box
10‧‧‧ Hanging socket
101‧‧‧ entrance
102‧‧‧ rope hole
103‧‧‧ opening
104‧‧‧Hook
106‧‧‧Clamping section
107‧‧‧Guide roller
11‧‧‧ main body
111‧‧‧Combination hole
112‧‧‧ holding structure
113‧‧‧The first clamping piece
114‧‧‧ entrance hub
115‧‧‧ export hub
116‧‧‧ holding tube
12‧‧‧ cover
121‧‧‧ Combined claw
122‧‧‧ holding structure
123‧‧‧ convex piece
124‧‧‧Concave
125‧‧‧operation hole
126‧‧‧Second clamping piece
127‧‧‧Cylinder
13‧‧‧Internal space
131‧‧‧ Curled storage space
132‧‧‧Socket storage space
133‧‧‧ relay space
134‧‧‧winding space
135‧‧‧ entrance (in relay space)
136‧‧‧ exit (relay space)
14‧‧‧Combined screws
2‧‧‧Socket body
21‧‧‧shell
211‧‧‧Terminal hole
23‧‧‧Connecting surface
231‧‧‧Insertion hole
3‧‧‧ cable
31‧‧‧The first connection terminal
32‧‧‧ 2nd connection terminal
33‧‧‧Curl
331‧‧‧ (of the curled portion)
332‧‧‧ (of the curled portion)
4‧‧‧ Rope
5‧‧‧ reel
51‧‧‧The first roller
52‧‧‧The first flange
521‧‧‧Gouge rope trench
53‧‧‧ 2nd flange
54‧‧‧ 2nd roller
541‧‧‧Concave
55‧‧‧ front wall
551‧‧‧rotation axis
552‧‧‧3rd roller
56‧‧‧Spring holding frame
561‧‧‧ Insertion groove
61‧‧‧Cancel button
611‧‧‧Press rod
62‧‧‧ Coiled Spring
7‧‧‧ Stop
71‧‧‧Fixed section
711‧‧‧ Flat Department
712‧‧‧ first leg
713‧‧‧ 2nd leg
714‧‧‧concave
715‧‧‧contact sheet
72‧‧‧ Elastic Section
73‧‧‧Restricted Department
731‧‧‧The first restricted film
732‧‧‧ 2nd Limited Film
733‧‧‧Connector
74‧‧‧ hook piece
8‧‧‧ holding department
81‧‧‧ holding frame
811‧‧‧ Reinforcement rib (1st reinforcement rib)
812‧‧‧ Reinforcement rib (2nd reinforcement rib)
813‧‧‧ Reinforcement rib (3rd reinforcement rib)
814‧‧‧ Reinforcement rib (4th reinforcement rib)
815‧‧‧ Reinforcing rib (5th reinforcing rib)
816‧‧‧ Reinforcement rib (No. 6 reinforcement rib)
817‧‧‧ Reinforcement rib (No. 7 reinforcement rib)
82‧‧‧ raised
831‧‧‧The first contact
832‧‧‧The second contact
9‧‧‧ suspension structure
90‧‧‧ flange
P1‧‧‧ import path
Z1‧‧‧center axis

[FIG. 1] FIG. 1 is a front view of a suspension socket according to an embodiment of the present invention, with a cover member removed. [Fig. 2] Fig. 2 is a perspective view of the hanging socket as seen from obliquely the front. [Fig. 3] Fig. 3 is a perspective view of the hanging socket as seen from obliquely the same direction as above. [Fig. 4] Fig. 4 is a front view of the hanging socket according to the above. [Fig. 5] Fig. 5 is an exploded perspective view of the hanging socket as seen from obliquely forward. [Fig. 6] Fig. 6 is an exploded perspective view of the hanging socket as seen from obliquely the same direction as above. [Fig. 7] Fig. 7A is an enlarged perspective view of a main part of the hanging socket in the same state with the cover and cables removed. FIG. 7B is an enlarged perspective view of the main part of the suspended socket in the same state with the cover removed. [Fig. 8] Fig. 8 is a cross-sectional view of other main parts in a state in which the cover of the suspension socket is removed as described above. [Fig. 9] Fig. 9A is an enlarged view of the main body and the stopper in a state in which the stopper is removed from the main body in the hanging socket according to the above. FIG. 9B is an enlarged view of the main body and the stopper in a state where the stopper is attached to the main body in the hanging socket according to the above. [Fig. 10] Fig. 10 is a side view of a stopper used in the above-mentioned suspension type socket.

1‧‧‧ box

10‧‧‧ Hanging socket

101‧‧‧ entrance

102‧‧‧ rope hole

103‧‧‧ opening

107‧‧‧Guide roller

11‧‧‧ main body

114‧‧‧ entrance hub

115‧‧‧ export hub

13‧‧‧Internal space

131‧‧‧ Curled storage space

132‧‧‧Socket storage space

133‧‧‧ relay space

134‧‧‧winding space

135‧‧‧ entrance (in relay space)

136‧‧‧ exit (relay space)

2‧‧‧Socket body

23‧‧‧Connecting surface

3‧‧‧ cable

32‧‧‧ 2nd connection terminal

33‧‧‧Curl

331‧‧‧ (of the curled portion)

4‧‧‧ Rope

5‧‧‧ reel

541‧‧‧Concave

7‧‧‧ Stop

71‧‧‧Fixed section

711‧‧‧ Flat Department

712‧‧‧ first leg

713‧‧‧ 2nd leg

72‧‧‧ Elastic Section

73‧‧‧Restricted Department

731‧‧‧The first restricted film

732‧‧‧ 2nd Limited Film

733‧‧‧Connector

74‧‧‧ hook piece

8‧‧‧ holding department

81‧‧‧ holding frame

Z1‧‧‧center axis

Claims (14)

A suspension socket is provided with: a box body suspended from a suspension structure; a socket body having a connection surface formed with an insertion hole for inserting a tab, so that the connection surface is formed from a portion formed in the box body; The opening portion is exposed so that at least a part of the socket body is accommodated in the box body; and the cable includes: a curled portion formed in a coil shape with a straight line along the vertical direction as a central axis; and a first connection end to connect To the upper end of the crimped portion and electrically connected to a power source; and a second connection end connected to the lower end of the crimped portion and electrically connected to the socket body; the cable is formed from the The introduction port is introduced into the box body, and the second connection end is connected to the socket body in the box body; the box body has a curl storage space, and the curl storage space is connected to the outer space of the box at the introduction port and The lower end portion of the curled portion is housed. For example, the pendant socket of the first patent application scope, wherein the introduction port is formed on an introduction path connecting the curled storage space and the external space of the box body, and the introduction path is: on a plane orthogonal to the vertical direction Inside, rewind the shape around the central axis of the curled portion. For example, the hanging socket of the scope of patent application, wherein the box body further has a clamping portion, and the clamping portion holds the portion of the lower end portion of the curled portion in the curled storage space to hold the portion. The lower end portion of the curled portion. For example, the hanging socket of the scope of patent application, wherein the part of the curling part outside the box is configured to follow the curling part according to the distance between the box body and the hanging structure. The central axis is telescopic. For example, the pendant socket of the scope of patent application No. 1, wherein the box body further includes: a socket storage space for housing the socket body; and a relay space between the curled storage space and the socket storage space. The relay space has: an entrance connected to the curled storage space; and an outlet connected to the socket storage space, the entrance of the relay space passing through the cable in a direction crossing the vertical direction, the relay space The exit is through the cable along the vertical direction. For example, the suspension socket of item 5 of the patent application, wherein the cross-sectional shape of the cable is flat, the thickness direction of the cable at the entrance of the relay space and the exit of the outlet at the relay space The thickness directions of the cables cross each other. For example, the pendant socket of the scope of patent application No. 1 further includes: a rope body, which is pulled out from a rope hole formed on the top surface of the box body to the outside of the box body, and fixed to the hanging structure body outside the box body; And a reel, stored in the box body, for winding the rope body, the rope body being located on the central axis of the curled portion outside the box body. For example, the hanging socket according to any one of claims 1 to 6, further includes: a rope body, which is pulled out of the box body through a rope hole formed in the box body, and is fixed to the outside of the box body. Suspension structure; The reel is configured to wind the rope body, and is stored in the box body so as to be rotatable in a direction in which the rope body is wound and a direction in which the rope body is released; The elastic force of the reel rotating in the direction of winding the rope body; the stopper portion is housed in the box body, and is displaced between a restricted position that restricts the rotation of the reel and a release position that allows the reel to rotate; and Button to displace the stopper between the restricted position and the released position, the roll has at least one recess recessed radially in the periphery of the roll, and the stopper is in the restricted position A first restricting piece and a second restricting piece located in the recess of the reel, the first restricting piece having a function of restricting the reel to rotate in a direction of winding the rope body in the restricting position, the second restricting piece The sheet has a restriction in the restricted position to release the reel towards the rope body Direction of rotation function, and the cord direction of the receiving body towards the drum rotational force of the release of the second sheet toward the outer limit of the recess displacement function. For example, the suspension socket according to item 8 of the patent application, wherein the stopper is formed in a long shape, and further has a leaf spring-like elastic portion and a fixing portion, and the fixing portion is connected to the first portion through the elastic portion. The restricting piece and the second restricting piece, the box body has a retaining portion in the restricting position, and the first restricting piece and the second restricting piece of the stopper are located in the recess of the reel Inside, holding the fixing portion. For example, the hanging socket according to item 9 of the patent application, wherein the fixing portion is composed of a metal plate, and a recess is provided on a part of the outer peripheral edge of the fixing portion, and an inner surface of the box body is provided with a recess embedded in the recess. Raised portion. For example, the suspension socket according to the scope of patent application No. 10, wherein the stopper further includes a contact piece that protrudes from an end edge of the recessed portion toward a thickness direction of the fixed portion and contacts the protruding portion. For example, the hanging socket according to item 9 of the patent application, wherein the fixing portion includes: a flat plate-shaped plate portion; and a first leg piece and a second leg piece from the vertical length of the stop portion in the flat plate portion. Both ends in the direction protrude toward one side in the thickness direction. The holding portion has a holding frame formed in a frame shape surrounding the fixing portion. The holding frame has the stopper portions respectively in the flat plate portion. The distance between the first contact portion and the second contact portion of the first contact portion and the second contact portion opposite to each other in the longitudinal direction is longer than that between the first leg piece and the second leg piece. The interval is narrow, and the first contact portion and the second contact portion are in surface contact with the flat plate portion. For example, in the hanging socket of claim 12, the at least one of the tip of the first leg piece and the tip of the second leg piece is chamfered. For example, in the hanging socket of the scope of application for patent No. 12, wherein the holding frame has at least one of a portion in contact with the tip of the first leg piece and a portion in contact with the tip of the second leg piece. Department, set up reinforcement ribs.