JP2018014226A - Suspension outlet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a suspension outlet capable of suppressing case inclination with respect to the vertical direction.SOLUTION: A cable 3 has a curl 33, first connection end 31, and second connection end 32. The curl 33 is formed like a coil having a straight in the vertical direction as a medial axis Z1. The first connection end 31 is connected to the upper end 332 of the curl 33, and connected electrically with a power supply. The second connection end 32 is connected to the lower end 331 of the curl 33, and connected electrically with the outlet body 2. The cable 3 is introduced into the case 1 from an introduction port 101 formed at the upper end of the case 1, and the second connection end 32 is connected to the outlet body 2 in the case 1. The case 1 is connected to the outer space thereof at the introduction port 101, and has a curl housing space 131 for housing the lower end 331 of the curl 33.SELECTED DRAWING: Figure 1

Description

  The present invention relates generally to a suspended outlet, and more particularly to a suspended outlet that is suspended from a suspended structure.

  2. Description of the Related Art Conventionally, a suspended outlet including a string body suspended from a support body fixed to a ceiling and a case that can be raised and lowered at the tip of the string body is known (see, for example, Patent Document 1).

  The (ceiling) suspended outlet described in Patent Document 1 includes a cable (power curl cord) and an outlet body (outlet part) to which an insertion plug is detachably connected. The part of the cable except for both ends is formed in a spiral shape. One end of the cable is housed in the support body, and the other end of the cable is introduced into the case. The outlet body is connected to the end of the cable in the case (main body).

  In the suspended outlet described in Patent Document 1, a substantially cylindrical neck protrudes from the center of the upper surface of the case, and the string body is drawn out of the case through a hole penetrating the neck. The cable is introduced into the case through a hole provided in a base portion of the neck.

JP 2007-193955 A

  However, in the suspended outlet described in Patent Document 1, an end portion of the cable that is not formed in a spiral shape is introduced into the case from above obliquely through a hole provided in the base portion of the neck portion. Yes. For this reason, the case may be inclined with respect to the vertical direction when tension acts on the case from the cable or when a spirally formed portion of the cable interferes with the neck.

  This invention is made | formed in view of the said reason, and it aims at providing the hanging type | mold outlet socket which can suppress the inclination of a case with respect to a perpendicular direction.

  A suspended outlet according to one embodiment of the present invention includes a case, an outlet body, and a cable. The case is suspended from a suspended structure. The outlet body has a connection surface in which an insertion hole for inserting a plug blade is formed. At least a part of the outlet body is housed in the case so that the connection surface is exposed from an opening formed in the case. The cable has a curl 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 the upper end of the curl portion and is electrically connected to a power source. The second connection end is connected to the lower end of the curl portion and is electrically connected to the outlet body. The cable is introduced into the case from an introduction port formed at an upper end portion of the case, and the second connection end is connected to the outlet body in the case. The case has a curl storage space that is connected to the external space of the case at the introduction port and stores the lower end portion of the curl portion.

  The present invention has an advantage that the inclination of the case with respect to the vertical direction can be suppressed.

FIG. 1 is a front view of a suspended outlet according to an embodiment of the present invention with a cover removed. FIG. 2 is a perspective view of the above-described suspended outlet, as viewed obliquely from the front. FIG. 3 is a perspective view of the above-described suspended outlet, as viewed obliquely from the rear. FIG. 4 is a front view of the above-described suspended outlet. FIG. 5 is an exploded perspective view of the same hanging type outlet as viewed obliquely from the front. FIG. 6 is an exploded perspective view of the above-described suspended outlet as viewed obliquely from the rear. FIG. 7A is an enlarged perspective view of a main part in a state where the cover and the cable are removed in the above-described suspended outlet. FIG. 7B is an enlarged perspective view of a main part in a state where the cover is removed in the above suspended outlet. FIG. 8 is a cross-sectional view of another main part in a state in which the cover of the above-described suspended outlet is removed. FIG. 9A is an enlarged view of the body and the stopper in a state where the stopper is removed from the body in the above-described suspended outlet. FIG. 9B is an enlarged view of the body and the stopper in a state where the stopper is attached to the body in the above-described suspended outlet. FIG. 10 is a side view of a stopper used in the above suspended outlet.

(1) Outline As shown in FIGS. 2 to 4, a suspended outlet 10 according to the present embodiment includes a case 1 that is suspended from a suspended structure 9 such as a ceiling of a building (see FIG. 4), and an outlet. And a main body 2.

  The suspended outlet 10 according to the present embodiment has a function of an outlet that supplies power to an electrical device by connecting a plug of the electrical device to the outlet body 2. Here, as the outlet main body 2 of the suspended outlet 10, a two-port outlet that is for AC 100V with a grounding electrode and that can connect two plugs at the same time is illustrated. Moreover, in this embodiment, the suspension structure 9 is the ceiling of a building, and the indoor suspension type outlet 10 used in the state suspended by the ceiling is illustrated. The building in which the suspended outlet 10 is used may be a non-residential such as a factory, a school, a store, and a hospital, or may be a detached house, an apartment house, or the like.

  The suspended outlet 10 further includes a cable 3 for electrically connecting a power source such as a system power source (commercial power source) and the outlet body 2. One end (first connection end 31) of the cable 3 is electrically connected to a power feeding unit such as an embedded outlet installed in the suspended structure 9, for example. The other end (second connection end 32) of the cable 3 is electrically connected to the outlet body 2. As a result, power is supplied from the power source to the outlet body 2. Most of the cable 3 is located outside the case 1, and only the lower end portion is introduced into the case 1 from an introduction port 101 formed at the upper end portion of the case 1. Further, as will be described in detail later, the cable 3 is a so-called curled cord that is at least partially formed in a coil shape, and follows a vertical line according to the distance between the case 1 and the suspended structure 9. It is configured to be stretchable.

  The suspended outlet 10 further includes a string body 4 for suspending the case 1 from the suspended structure 9 and a reel 5 for winding the string body 4. The reel 5 is stored in the case 1. The string body 4 is drawn out of the case 1 from a string hole 102 formed on the upper surface of the case 1. The leading end of the string body 4 drawn out of the case 1 is fixed to the suspended structure 9 outside the case 1. Thereby, the load applied to the case 1 is applied to the suspended structure 9 via the string body 4, and the case 1 is suspended from the suspended structure 9. Further, since the distance between the case 1 and the suspended structure 9 along the vertical line is determined by the amount of the string body 4 pulled out from the case 1, the reel 5 can wind and unwind the string body 4. By doing so, the case 1 moves (lifts) along the vertical line. As will be described in detail later, the reel 5 has a ratchet mechanism that restricts the direction of rotation so that only the string body 4 can be fed out. Therefore, if the string body 4 is pulled, the string body 4 is pulled out from the case 1. It is possible. When the release button 61 is operated while the string body 4 is pulled out, the restriction by the ratchet mechanism is released, and the direction in which the string body 4 is wound by the restoring force acting on the reel 5 from the winding spring 62 The reel 5 rotates.

  The suspended outlet 10 configured as described above can raise and lower the case 1 while being suspended from the suspended structure 9, thereby adjusting the height of the case 1. it can. That is, the user can lower the case 1 by holding the case 1 by hand and pulling the case 1 downward, and can raise the case 1 by operating the release button 61. Therefore, for example, when the user does not use the suspended outlet 10 (when not in use), the user raises the case 1 to the vicinity of the suspended structure 9 and uses the suspended outlet 10 ( Only when in use) can the case 1 be lowered to the desired height. The suspended outlet 10 is used for supplying power to various electric devices such as an electric tool, a lighting fixture, and a cleaning device.

(2) Details (2.1) Overall Configuration Hereinafter, the suspended outlet 10 according to the present embodiment will be described in detail.

  As shown in FIGS. 1 to 6, the suspended outlet 10 according to the present embodiment includes a release button 61, a winding spring, in addition to the case 1, the outlet body 2, the cable 3, the string body 4, and the reel 5. 62, a stopper 7, and a flange portion 90. Here, the case 1 is configured by combining two members of a body 11 and a cover 12. FIG. 1 shows the suspended outlet 10 with the cover 12 removed.

  In the present embodiment, the direction perpendicular (orthogonal) to the horizontal plane in a state where the suspended outlet 10 is attached to the ceiling of the building as the suspended structure 9 is defined as the “vertical direction” and the downward (vertical) (Direction) is described as “downward”. Also, the direction orthogonal to the vertical direction and the direction in which the body 11 and the cover 12 in the case 1 are combined will be referred to as “front-rear direction”, and the cover 12 side as viewed from the body 11 will be described as “front”. Furthermore, the direction orthogonal to both the up-down direction and the front-rear direction will be referred to as “left-right direction”, the right side when viewing the suspended outlet 10 from the front will be described as “right”, and the left will be described as “left”. The arrows indicating “vertical direction”, “front / rear direction”, and “left / right direction” in the drawings are merely shown for the purpose of explanation, and are not accompanied by an entity. However, these directions are not intended to limit the direction of use of the suspended outlet 10.

  As shown in FIG. 4, the flange portion 90 is fixed to the suspended structure 9 using, for example, a dedicated mounting bracket. As a result, the suspended outlet 10 is attached to the suspended structure 9 with the flange portion 90 holding the upper ends of the cable 3 and the string body 4. In the present embodiment, as an example, the flange portion 90 is formed in a substantially hemispherical shape, and the cable 3 and the string body 4 are drawn downward from the center portion of the lower surface of the flange portion 90. Inside the flange portion 90, the first connection end 31 that is the upper end of the cable 3 is electrically connected to a power feeding portion such as an embedded outlet. That is, in the hanging type outlet 10, both mechanical coupling to the hanging structure 9 and electrical connection to a power source (system power source or the like) are performed at the flange portion 90.

  The case 1 is made of a synthetic resin and houses the outlet body 2 and the like. As an example, the case 1 is made of ABS resin. The case 1 has a “vertically long” shape that is flat in the front-rear direction and longer in the vertical direction than in the left-right direction. Furthermore, the case 1 has a tapered shape such that the dimensions in the left-right direction and the front-rear direction become smaller as approaching the upper end. Here, the case 1 employs a so-called “one motion form” that is connected without a step from the lower end portion to the upper end portion. Specifically, the outer peripheral surface of the case 1 is gently curved so as to protrude outward from the lower end to the intermediate portion in the vertical direction, and protrudes inward from the intermediate portion in the vertical direction to the upper end. It is gently curved so that Furthermore, the outer peripheral surface of the case 1 is a curved surface that is connected without a step over the entire periphery when viewed from above. With such a shape, for example, by grasping the upper part of the case 1, even a user with a relatively small hand can easily grasp the case 1, and the case 1 can be easily moved up and down. The surface of the case 1 is an uneven surface that has been embossed. The “texture processing” referred to here is a process of applying a fine wrinkle pattern (texture) on the surface of the case 1 when the case 1 is molded.

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

  Here, as shown in FIG. 1, the internal space 13 of the case 1 is divided into four spaces: a curl storage space 131, an outlet storage space 132, a relay space 133, and a winding space 134. . In other words, the case 1 has a curl storage space 131, an outlet storage space 132, a relay space 133, and a winding space 134. The curl storage space 131 is a space in which a part of the curl portion 33 (lower end portion 331) of the cable 3 described later is stored. The outlet storage space 132 is a space in which the outlet body 2 is stored. The relay space 133 is a space located between the curl storage space 131 and the outlet storage space 132. The winding space 134 is a space in which a mechanism for winding the string body 4 such as the reel 5, the winding spring 62, and the stopper 7 is stored. 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 generally arranged in the order of the curl storage space 131, the relay space 133, the winding space 134, and the outlet storage space 132 from above in the case 1. Specifically, the relay space 133 is located on the lower left side 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 outlet storage space 132 is located below the winding space 134. Focusing on the path of the cable 3, the curl storage space 131 is connected to the outlet storage space 132 through the relay space 133 and the winding space 134. These four spaces are only spaces in which the internal space 13 of the case 1 is divided by function, and at the boundary of these four spaces (shown by a one-dot chain line in FIG. 1), the spaces are physically separated. There is no partition wall. However, at least two of these four spaces may be physically separated by a partition wall or the like.

  An introduction port 101 for introducing the cable 3 into the case 1 is formed at the upper end of the case 1. The introduction port 101 is formed at the upper end of the body 11 so as to penetrate the body 11 in a direction intersecting with the vertical direction. In the present embodiment, the introduction port 101 penetrates the body 11 in the front-rear direction orthogonal to the up-down direction. The introduction port 101 connects the curl storage space 131 and the external space of the case 1. As a result, the cable 3 is introduced from the rear surface of the case 1 into the curl storage space 131 in the case 1 so as to penetrate the case 1 in the front-rear direction. Here, the introduction port 101 is opened upward so that the cable 3 can be easily inserted into the introduction port 101 from above. Furthermore, the introduction port 101 is formed not at the center of the body 11 in the left-right direction but at a position near the right end of the body 11. The details will be described in the section “(2.2) Cable routing structure”. With this, the curl portion 33 of the cable 3 is introduced into the case 1 from the introduction port 101, and the central axis of the curl portion 33 is thereby obtained. Z1 passes through a substantially central portion of the upper surface of the case 1. The cover 12 has a protruding piece 123 that protrudes rearward from the inner peripheral edge of the opening on the rear surface at a position facing the introduction port 101 at the upper end. The lower surface of the projecting piece 123 is formed in an R shape. Thereby, for example, even if the cable 3 is pulled upward in a state where the cable 3 is inserted into the introduction port 101, the cable 3 contacts the lower surface of the projecting piece 123, and the biting of the cover 12 into the cable 3 is suppressed. The

  On the upper surface of the case 1, a string hole 102 for pulling the string body 4 out of the case 1 is formed. The string hole 102 is formed at the center of the upper surface of the case 1 so as to penetrate the upper wall of the case 1 in the vertical direction. Thereby, the string 4 is pulled out of the case 1 from the upper surface of the case 1 so as to penetrate the case 1 in the vertical direction. Here, the string hole 102 is formed on the boundary line between the body 11 and the cover 12 so that the string body 4 can be easily inserted into the string hole 102 from the front. In the present embodiment, a pair of semicircular holes formed in the body 11 and the cover 12 as viewed from above are combined to form one circular string hole 102. The routing of the string body 4 in the case 1 will be described later.

  An opening 103 for exposing the outlet body 2 is formed on the lower surface of the case 1. The opening 103 is a hole that penetrates the lower wall of the case 1 in the vertical direction, and is formed in a rectangular shape that is long in the horizontal direction. A pair of holding structures 112 and 122 for holding the outlet main body 2 are provided around the opening 103 in the case 1. The holding structure 112 is provided on the 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 across the opening 103.

  The case 1 further includes a pair of hooks 104 protruding from the rear surface of the body 11. The pair of hooks 104 is a structure for hooking a power cord extending from a plug of an electric device. Thereby, the hanging type outlet 10 can receive the load applied downward to the plug by the weight of the power cord or the like by the hook 104 in a state where the plug is connected to the outlet body 2.

  Further, a button recess 124 for accommodating the release button 61 is formed on the front surface of the case 1. The button recess 124 is located at the center in the left-right direction on the front surface of the cover 12. On the bottom surface of the button recess 124, an operation hole 125 is formed through which a push bar 611 of the release button 61 described later passes. The operation hole 125 penetrates the cover 12 in the front-rear direction.

  The outlet body 2 has a rectangular parallelepiped housing 21 made of synthetic resin and built-in components such as a blade receiving member housed in the housing 21. The lower surface of the housing 21 constitutes a connection surface 23 for connecting a plug. The connection surface 23 is formed with an insertion hole 231 for inserting a plug blade (or pin) of the plug. The outlet body 2 has a lock mechanism that prevents the plug blade (or pin) from coming off by rotating the plug.

  At least a part of the outlet body 2 is housed in the case 1 so that the connection surface 23 is exposed from the opening 103 formed in the case 1. In the present embodiment, the outlet body 2 is held in the case 1 so that the connection surface 23 slightly protrudes from the lower surface of the case 1, and most of the outlet body 2 is stored in the case 1. The outlet body 2 is held in the opening 103 by the holding structure 112 of the body 11 and the holding structure 122 of the cover 12 so as to be sandwiched from both sides in the front-rear direction.

  Further, the outlet body 2 has a terminal portion for connecting the cable 3. Here, the terminal portion is a plug-in type quick connection terminal to which the cable 3 is connected by inserting the second connection end 32 of the cable 3 from a terminal hole 211 formed on the upper surface of the housing 21. In the present embodiment, a total of three electric wires including a pair of power supply wires and a ground wire (ground wire) are connected to the outlet body 2.

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

  The curled portion 33 is formed in a coil shape having a straight line (vertical axis) along the vertical direction (vertical direction) as the central axis Z1. Here, the central axis Z1 in the drawing is merely shown for explanation, and is a virtual line without an entity. That is, the curled portion 33 is configured such that a part of the cable 3 is formed in a helix shape centered on the central axis Z1. The spiral here means a curve that rises in one direction along the central axis Z1 orthogonal to the plane of rotation while rotating. In the present embodiment, as an example, the curl portion 33 has a spiral shape that turns clockwise from the top to the bottom as viewed from above. The curled portion 33 has elasticity similarly to the tension coil spring, and is configured to be extendable along the central axis Z1. That is, the curl portion 33 is a so-called curl cord, and is configured to be extendable and contractable along the central axis Z1. When the curled portion 33 is not stretched (when in close contact), the curled portion 33 has a cylindrical shape centered on the central axis Z1.

  Moreover, in this embodiment, the cable 3 arranges a plurality of core wires (a pair of power supply wires and a ground wire) such as a vinyl parallel cord (VFF) in parallel at a constant interval, for example. The wire is composed of a flat cable covered with an insulating coating such as vinyl. This type of cable 3 has a flat cross-sectional shape. Further, the cable 3 is formed so that the curled portion 33 is flat in the radial direction (radial direction). In the present embodiment, the cable 3 is a stranded wire whose core wire is composed of a plurality of conducting wires.

  In the present embodiment, the string body 4 is a synthetic resin twisted yarn. One end of the string body 4 is fixed to the reel 5 in the case 1, and is wound around the reel 5 and led out from the reel 5. In the case 1, a cylindrical guide roller 107 is disposed at a lower right position of the string hole 102, and the string body 4 led out from the reel 5 is bent upward by the guide roller 107. The string body 4 bent upward by the guide roller 107 is drawn out of the case 1 through the string hole 102, and the distal end portion is fixed to the suspended structure 9 outside the case 1. As shown in FIG. 1, the string body 4 is located on the central axis Z <b> 1 of the curled portion 33 outside the case 1. In the hanging type outlet 10, by rotating the reel 5 and changing the winding amount of the string body 4, the pulling amount of the string body 4 from the case 1 changes, and the space between the hanging structure 9 and the case 1 is changed. The distance changes. The length of the entire cord body 4 is appropriately set according to the place where the suspended outlet 10 is supposed to be used. For example, the suspended structure 9 (ceiling) of the building where the suspended outlet 10 is used. ) To the floor, or shorter than this distance.

  The reel 5 winds and unwinds the string body 4. The reel 5 is made of synthetic resin, and as an example, is made of ABS resin. As shown in FIGS. 5 and 6, the reel 5 has a cylindrical shape, a first drum 51 around which the string body 4 is wound, a first flange 52 projecting in a radial direction from the front end edge of the first drum 51, And a second flange 53 projecting radially from the rear end edge of the first drum 51. That is, the reel 5 is formed in a so-called bobbin shape. A string hooking groove 521 is formed in the first flange 52, and one end of the string body 4 is hooked on the string hooking groove 521 and fixed. A second drum 54 that protrudes rearward is provided on the outer edge of the second flange 53. The second drum 54 has a cylindrical shape larger in diameter than the first drum 51 and is formed concentrically with the first drum 51. At least one (here, four) recesses 541 are formed in the circumferential portion of the second drum 54 so as to be recessed in the radial direction.

  Further, the reel 5 has a front wall 55 at a position in front of the center and rearward of the first flange 52 in the front-rear direction. A rotation shaft 551 is provided concentrically with the first drum 51 on the front and rear surfaces of the front wall 55 (see FIGS. 6 and 8). A cylindrical third drum 552 is provided concentrically with the rotation shaft 551 on the front surface of the front wall 55. The rotating shaft 551 is rotatably inserted into a shaft hole provided in the body 11, while a hollow cylinder 127 provided in the cover 12 is inserted into the third drum 552. As a result, the reel 5 is held in the case 1 so as to be rotatable clockwise and counterclockwise as viewed from the front.

  Further, a spring holding frame 56 is provided on the rear surface of the front wall 55. The spring holding frame 56 has a cylindrical shape with a diameter smaller than that of the first drum 51, and is provided inside the first drum 51 and the second drum 54 so as not to be concentric with the first drum 51 and the second drum 54. It has been. 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 winding spring 62 is a so-called mainspring spring, and is configured by winding an elastic metal plate in a spiral shape. The winding spring 62 has a spiral shape that turns counterclockwise from the inside toward the outside as viewed from the front. The spiral here means a curve that moves away from the center as it turns on the same plane. The winding spring 62 has an outer end inserted into and held in the insertion groove 561 of the spring holding frame 56, and an inner end wound around a holding cylinder 116 provided in the body 11. 116. The winding spring 62 gives the reel 5 an elastic force in a direction in which the string body 4 is wound (clockwise direction when viewed from the front).

  The stopper 7 is a member that regulates the rotation of the reel 5 and is formed by, for example, punching and bending a metal plate having elasticity. The stopper 7 is disposed below the reel 5 in the case 1. The stopper 7 is held by the holding portion 8 such that the short side direction is along the front-rear direction and the long side direction is inclined to the right by a specified angle θA with respect to the horizontal plane. The holding unit 8 is provided in the case 1.

  As shown in FIG. 10, the stopper 7 includes a fixed portion 71, an elastic portion 72, and a restricting portion 73. The fixed portion 71, the elastic portion 72, and the restricting portion 73 are arranged in this order in the longitudinal direction of the stopper 7. In the present 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 that is held by the holding portion 8 in the stopper 7. The fixing portion 71 includes a flat plate portion 711 and a first leg piece 712 that protrudes from one end of the flat plate portion 711 in the thickness direction of the flat plate portion 711 (downward in the right direction in FIG. 1) from both ends of the stopper 7 in the flat plate portion 711. And a second leg piece 713, and is formed in an inverted U shape when viewed from the front. On the other hand, as shown in FIG. 8, the holding portion 8 has a holding frame 81 provided on the body 11. The holding frame 81 is formed in a frame shape surrounding the fixed portion 71. The holding frame 81 has a long rectangular frame-shaped portion provided such that the longitudinal direction is inclined upward to the right by a specified angle θA with respect to the horizontal plane. Further, in the holding frame 81, a rectangular parallelepiped space (first relief space) formed by recessing the center portion of the upper wall upward, and a rectangular parallelepiped space by recessing the center portion of the lower wall downward. (Second escape space) is formed. The holding frame 81 is in contact with the left end portion of the upper surface of the flat plate portion 711, the right end portion of the upper surface of the flat plate portion 711, the tip end of the first leg piece 712, and the tip end of the second leg piece 713, thereby keeping. Thereby, the fixing | fixed part 71 is hold | maintained at the holding | maintenance frame 81 in the state which inclined rightward only the specified angle (theta) A with respect to the horizontal surface. In the present embodiment, the holding frame 81 has the first escape space and the second escape space, but the holding frame 81 may not have the first escape space and the second escape space.

  As shown in FIG. 10, the elastic portion 72 is continuous with the fixed portion 71. The elastic portion 72 is formed of a cantilever-like plate spring and can be elastically deformed in the thickness direction with the end portion on the fixed portion 71 side as a fixed end. When the elastic portion 72 is not elastically deformed, the upper surface of the elastic portion 72 is flush with the upper surface of the flat plate portion 711 of the fixed portion 71.

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

  As shown in FIGS. 1 and 8, the stopper 7 is in a state in which the elastic portion 72 is elastically deformed so that the restricting portion 73 is displaced downward with the end portion of the elastic portion 72 on the fixed portion 71 side as a fixed end. The first restricting piece 731 and the second restricting piece 732 are located in the recess 541 of the reel 5. Hereinafter, the position of the stopper 7 in this state is referred to as a “restricted position”. At the restricting position, the first restricting piece 731 comes into contact with the right side surface of the recess 541 to restrict the rotation of the reel 5 in the direction in which the string body 4 is wound (clockwise direction in FIG. 1). Note that, at the restricting position, the end of the elastic portion 72 on the restricting portion 73 side is substantially parallel to the tangential direction of the second drum 54.

  Further, the stopper 7 is provided with a hook piece 74 that extends downward from the boundary portion between the elastic portion 72 and the restricting portion 73 (in the 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 is hooked on the rear end of the push bar 611 of the release button 61. When the push bar 611 is displaced rearward, the hook piece 74 is pushed rearward and downward by the push bar 611. At this time, the rectangular support plate provided on the hook piece 74 comes into contact with the inverted U-shaped rib provided on the rear side of the support plate in the body 11, thereby restricting the rearward movement of the hook piece 74. The As a result, the hook piece 74 is displaced downward. When the hook piece 74 is pushed by the push bar 611 and displaced downward, the elastic portion 72 is elastically deformed downward, and the first restriction piece 731 and the second restriction piece 732 are detached from the recess 541. Hereinafter, the position of the stopper 7 in a state where the first restricting piece 731 and the second restricting piece 732 are disengaged from the recess 541 is referred to as a “release position”. In the release position, the first restricting piece 731 is located outside the recess 541, and therefore the rotation of the reel 5 in the direction in which the string body 4 is wound is allowed. Therefore, the string 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 restriction position and the release position according to a user operation. The release button 61 is made of a synthetic resin, and in one example is made of a polyacetal copolymer. The release button 61 has a flat rectangular parallelepiped shape, and is housed in the button recess 124 of the case 1 so as to be movable in the front-rear direction. The release button 61 has a bar-like push bar 611 having a tapered rear end. When the release button 61 is pushed by the user, the push bar 611 moves rearward and pushes down the hook piece 74 of the stopper 7 downward. Thereby, the stopper 7 is displaced from the restriction position to the release position. A return spring 612 is disposed in the button recess 124, and when the user releases the release button 61, the release button 61 moves forward by the restoring force of the return spring 612. Thereby, the force applied from the push rod 611 to the hook piece 74 is eliminated, and the stopper 7 is displaced from the release position to the restriction position by the restoring force of the elastic portion 72.

(2.2) Cable Routing Structure Next, the cable routing structure of the cable 3 introduced from the inlet 101 into the case 1 will be described in more detail with reference to FIGS. 1, 7A, and 7B. 7A and 7B are enlarged perspective views of the main part with the cover 12 removed.

  The cable 3 is introduced into the case 1 from an introduction port 101 formed at the upper end portion of the case 1. The cable 3 has a second connection end 32 connected to the outlet body 2 in the case 1. Here, the case 1 has a curl storage space 131 connected to the external space of the case 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 of the cable 3 as described above. That is, in the suspended outlet 10 according to the present 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 331 of the curled portion 33 is a part of the curled portion 33, the curled portion 33 has a shape that turns around the central axis Z1. Therefore, in the present embodiment, the introduction path P1 having a shape turning around the central axis Z1 of the curl portion 33 is formed in a plane (horizontal plane) orthogonal to the vertical direction, and the cable 3 is connected to the case 1 through the introduction path P1. Has been introduced in. The introduction path P1 is a path for the cable 3 and connects the curl storage space 131 and the external space of the case 1. The introduction port 101 is formed on the introduction path P1. As a result, the cable 3 is introduced into the case 1 from the rear surface of the case 1 along the introduction path P1 so as to turn around the central axis Z1 as indicated by an arrow A1. Therefore, the case 1 can store the lower end portion 331 of the curl portion 33 in the curl storage space 131 while maintaining the shape of the curl portion 33. In the present 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. In addition, the introduction path P1 in FIG. 7A merely indicates the path of the cable 3 for the sake of explanation, and is not accompanied by an entity. Similarly, an arrow A1 in FIG. 7B only conceptually represents a state in which the cable 3 is introduced into the case 1 from the introduction port 101, and does not involve an entity.

  Here, although the lower end portion 331 of the curled portion 33 is a part of the curled portion 33, the lower end portion 331 is accommodated in the case 1, so that the shape affected by the size of the internal space 13 of the case 1 is affected. Become. 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 in the curled portion 33. For example, the curled portion 33 has a different diameter from the portion other than the lower end portion 331. For example, the spiral shape may be slightly broken.

  Specifically, the case 1 has a guide surface 105 that protrudes rearward from the left edge of the introduction port 101 in the body 11 and is curved so that the width in the left-right direction of the introduction port 101 increases toward the rear. As a result, an introduction path P <b> 1 that is curved so as to turn around the central axis Z <b> 1 along the guide surface 105 is formed outside the case 1 with respect to the introduction port 101.

  Further, the case 1 has a clamp 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 curl storage space 131. In this embodiment, the clamp part 106 is comprised by the 1st clamp piece 113 and the 2nd clamp piece 126 (refer FIG. 6) located in the both sides of the front-back direction of the introduction path P1. The first clamp piece 113 is provided on the body 11, and the second clamp piece 126 is provided on the cover 12. The first clamp piece 113 and the second clamp piece 126 are located between the introduction port 101 and the central axis Z1 in the left-right direction. Furthermore, the front end portion (front end portion) of the first clamp piece 113 protrudes forward from the front surface (opening surface) of the body 11. On the other hand, the front end portion (rear end portion) of the second clamp piece 126 is located at a position that does not protrude from the rear surface (opening surface) of the cover 12, that is, ahead of the rear surface of the cover 12. As a result, the lower end portion 331 of the curl portion 33 held by the clamp portion 106 pulls the curl storage space 131 so as to go around the central axis Z1 along the inner peripheral surface of the cover 12 from the introduction port 101. Turned. Therefore, an introduction path P1 curved so as to turn around the central axis Z1 through the clamp portion 106 is formed inside the case 1 (that is, the curl storage space 131) with respect to the introduction port 101.

  Incidentally, as described above, the curl storage space 131 is connected to the outlet storage space 132 through the relay space 133 and the winding space 134. The relay space 133 has an inlet 135 connected to the curl storage space 131 and an outlet 136 connected to the outlet storage space 132. In the present embodiment, the inlet 135 is directly connected to the curl storage space 131, and the outlet 136 is connected to the outlet storage space 132 via the winding space 134. In the present embodiment, the relay space 133 is located to the left of the central axis Z1, and the entrance 135 is also located to the left of the central axis Z1. Here, the inlet 135 is a space between a pair of inlet bosses 114 formed in the case 1. The outlet 136 is a space between a pair of outlet bosses 115 formed in the case 1. Each of the pair of inlet bosses 114 and the pair of outlet bosses 115 holds the cable 3 by sandwiching a part of the cable 3 in the same manner as the clamp portion 106.

  The pair of inlet bosses 114 are located on the left side of the curl storage space 131. The pair of inlet bosses 114 are arranged side by side in the vertical direction. Thereby, the entrance 135 of the relay space 133 is configured to pass the cable 3 along the direction intersecting the vertical direction. In the present embodiment, the opposing direction of the pair of inlet bosses 114 is not parallel to the vertical direction, and the upper inlet boss 114 is located at the upper left of the lower inlet boss 114. Therefore, the cable 3 passing through the entrance 135 of the relay space 133 passes between the pair of entrance bosses 114 from the curl storage space 131 toward the lower left.

  On the other hand, the pair of outlet bosses 115 are located below the pair of inlet bosses 114. The pair of outlet bosses 115 are arranged side by side in the left-right direction. Thereby, the exit 136 of the relay space 133 is configured to pass the cable 3 along the vertical direction. Therefore, the cable 3 passing through the outlet 136 of the relay space 133 passes between the pair of outlet bosses 115 downward from the relay space 133. Therefore, the extension direction of the cable 3 is converted from “lower left” to “lower” between the inlet 135 and the outlet 136 in the relay space 133.

  Further, the distance between the pair of outlet bosses 115 is set smaller than the distance between the pair of inlet bosses 114. In the present embodiment, the cable 3 is configured by a flat cable having a flat cross-sectional shape. The distance between the pair of inlet bosses 114 is set to be approximately the same as the longitudinal dimension of the cross-sectional shape of the cable 3. The distance between the pair of outlet bosses 115 is set to be approximately the same as the short dimension of the cross-sectional shape of the cable 3. As a result, at the entrance 135 of the relay space 133, the thickness direction of the cable 3 (short direction of the cross-sectional shape of the cable 3) is a direction along the front-rear direction. On the other hand, at the outlet 136 of the relay space 133, the thickness direction of the cable 3 (short direction of the cross-sectional shape of the cable 3) is 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 intersect each other. In other words, the cable 3 is held in a twisted state between the inlet 135 and the outlet 136 in the relay space 133.

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

  The cable 3 introduced into the winding space 134 from the outlet 136 of the relay space 133 is routed to the outlet storage space 132 through at least one side of the reel 5 in the left-right direction. In the present embodiment, the cable 3 branches into two in the winding space 134 and is routed to the outlet storage space 132 through both sides of the reel 5 in the left-right direction. As an example, one power line and the ground line are routed to the outlet storage space 132 through the left side of the reel 5 and the other power line through the right side of the reel 5. In the outlet storage space 132, the second connection end 32, which is the tip (lower end) of the cable 3, is electrically connected to the outlet body 2.

(2.3) Winding Mechanism Next, the winding mechanism of the string body 4 by the reel 5 and its operation will be described in more detail with reference to FIGS. FIG. 8 is a cross-sectional view of a main part in a state where the cover 12 of the suspended outlet 10 according to the present embodiment is removed.

  As shown in FIG. 8, the reel 5 is held in the case 1 so as to be rotatable about an axis (specifically, a rotating shaft 551) along the front-rear direction.

  Further, as described above, the take-up spring 62 is disposed inside the reel 5, and the reel 5 has a clockwise direction when viewed from the front (the direction of a virtual arrow B1 shown in FIG. 8; An elastic force (referred to as “first direction”) is received from the winding spring 62.

  On the other hand, one end of the string body 4 is fixed by being hooked in the string hooking groove 521 of the reel 5, and is wound around the first drum 51 counterclockwise when viewed from the front, and then the first drum 51. Is derived from the upper right portion of the first drum 51 upward along the tangent line of the first drum 51 (see FIG. 1). The string body 4 led out from the reel 5 is drawn out of the case 1 through the string hole 102, and its tip is fixed to the suspension structure 9. Therefore, the reel 5 has a counterclockwise direction as viewed from the front (a virtual arrow B2 shown in FIG. 8) due to a load applied from the string body 4 to an object (such as the case 1) supported by the string body 4. Direction; hereinafter referred to as “second direction”).

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

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

  Here, the first predetermined angle θ1 between the first restricting piece 731 and the connecting piece 733 of the stopper 7 is set to be less than 90 ° as shown in FIGS. Further, 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 tries to rotate in the first direction, the force applied to the first restricting piece 731 from the reel 5 (the right side surface of the recess 541) is the tangential direction of the reel 5 (second drum 54). It will be an upward force. For this reason, even if the force applied to the first restricting piece 731 from the reel 5 increases, the force is a force in a direction to displace the first restricting piece 731 upward (to the center side of the reel 5). The portion 73 does not come off from the recess 541. As a result, when the force from the string body 4 is smaller than the force from the take-up spring 62, the reel 5 causes the force in the first direction by the take-up spring 62 and the string body 4 and the first restriction piece 731. Balance with the force in the second direction. Thereby, the position of the case 1 in the vertical direction is maintained without the reel 5 rotating.

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

  Here, the fixing portion 71 is inclined by a specified angle θA with respect to the horizontal plane so that the end portion on the regulating portion 73 side of the elastic portion 72 is substantially parallel to the tangential direction of the second drum 54. Further, the second predetermined angle θ2 between the second restricting piece 732 of the stopper 7 and the end of the elastic portion 72 on the restricting portion 73 side is a value larger than 90 ° as shown in FIGS. Is set to Furthermore, 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 tries to rotate in the second direction, the force applied to the second restricting piece 732 from the reel 5 (the left side surface of the recess 541) is the tangential direction of the reel 5 (second drum 54). Will be a downward force. For this reason, when the force applied from the reel 5 to the second restricting piece 732 increases, this force becomes a force for displacing the second restricting piece 732 downward (outward in the radial direction of the reel 5). The part 73 is displaced downward and comes out of the recess 541. Therefore, when the user pulls the case 1 downward or the like and the force in the second direction applied to the reel 5 from the string body 4 increases, the second restricting piece 732 is detached from the recess 541 and the reel 5 is moved to the second state. It rotates in the direction (direction in which the string 4 is drawn out).

  As described above, in the suspended outlet 10 of the present embodiment, when the stopper 7 is in the restriction position, the rotation of the reel 5 in the first direction is prohibited, and the rotation of the reel 5 in the second direction is allowed. The In short, the direction of rotation of the reel 5 of the suspended outlet 10 according to the present embodiment is limited by the ratchet mechanism so that only the rotation in the second direction (direction in which the string body 4 is unwound) is possible.

  Further, when the user presses the release button 61 and the stopper 7 is displaced to the release position, the restricting portion 73 is removed from the recess 541. At this time, the reel 5 is allowed to rotate in both the first direction and the second direction without receiving a force from the stopper 7. Therefore, the user can use the restoring force of the winding spring 62 to wind up the string 4 in the case 1 to raise the case 1, or the case 1 against the restoring force of the winding spring 62. Can be drawn out from the reel 5 and the case 1 can be lowered. When the user releases the release button 61, the stopper 7 returns to the restriction position, the restriction portion 73 is located in the recess 541 of the reel 5, and the restriction portion 73 restricts the rotation of the reel 5 again. It will be.

  By the way, as described above, in the suspended outlet 10 of the present embodiment, the stopper 7 is provided with the second restriction piece 732. The second restricting piece 732 receives the function of restricting the rotation of the reel 5 in the direction of unwinding the string body 4 and the rotational force of the reel 5 in the direction of unwinding the string body 4, and causes the second restricting piece 732 to enter the recess 541. It has a function to displace outside. Hereinafter, the second restriction piece 732 will be described in more detail.

  When the force in the second direction applied from the string body 4 to the reel 5 is greater than the force in the first direction applied from the take-up spring 62 to the reel 5, the second restricting piece 732 has these forces. A force in the second direction, which is a resultant force, is applied. Of this resultant force, the component in the direction to remove the second restricting piece 732 from the recess 541 (the force in the normal direction of the second drum 54) is the force of the second restricting piece 732 with respect to the tangential direction of the second drum 54. The closer the angle is to 90 °, the smaller. That is, as the angle of the second restricting piece 732 with respect to the tangential direction of the second drum 54 approaches 90 °, the restricting portion 73 is less likely to be detached from the recess 541. In the present embodiment, the angle of the second restriction piece 732 with respect to the tangential direction of the second drum 54 is set so that the second restriction piece 732 has a function of restricting the rotation of the reel 5 in the direction in which the string body 4 is drawn out. An angle close to 90 ° is set.

  Here, as shown in FIG. 8, the stopper 7 has the horizontal surface in a fixed position so that the end of the elastic portion 72 on the side of the restricting portion 73 is substantially parallel to the tangential direction of the second drum 54 at the restricting position. Is inclined by a specified angle θA. In addition, the angle between the second restricting piece 732 and the end of the elastic portion 72 on the restricting portion 73 side is set to a second predetermined angle θ2. That is, in the stopper 7 of the present embodiment, the second restricting piece 732 is inclined at a substantially second predetermined angle θ2 with respect to the tangential direction of the second drum 54 at the restricting position. In the present embodiment, the size of the second predetermined angle θ2 is set to an angle larger than 90 ° and close to 90 °.

  In one specific example, the specified 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 about to rotate in the second direction. That is, even when a load exceeding the restoring force of the winding spring 62 is applied to the case 1, this load can be supported by the stopper 7.

(2.4) Protection Structure As described above, in the present embodiment, the second restriction piece 732 is provided in the stopper 7, and even if the load applied to the case 1 exceeds the restoring force of the winding spring 62, The second restricting piece 732 can prevent the reel 5 from rotating in the direction in which the string body 4 is fed out. In particular, if the width of the stopper 7 (width in the front-rear 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, the force due to the load applied to the case 1 is applied to the fixing portion 71 and the holding portion 8 via the second restriction piece 732. Therefore, the suspended outlet 10 of the present embodiment further includes a protective structure for supporting the force applied to the fixing portion 71 and the holding portion 8 via the second restriction piece 732. Hereinafter, this protection structure will be described with reference to FIGS. 8, 9A, 9B, and 10. FIG.

  As described above, the stopper 7 is formed by punching and bending a metal plate. 9A and 9B, a recess 714 is formed in a part of the outer peripheral edge of the fixing portion 71 (more specifically, the flat plate portion 711) made of a metal plate. In addition, a protrusion 82 is provided inside the holding frame 81 in the body 11. The protrusion 82 has a shape corresponding to the recess 714 of the stopper 7 and is press-fitted into the recess 714. In the present embodiment, the protrusion 82 is a rib extending from the upper left to the lower right when viewed from the front. As described above, the protrusion 82 is fitted in the recess 714, so that the displacement in the front-rear direction of the restricting portion 73 around the fixing portion 71 can be suppressed.

  Further, as shown in FIGS. 9A and 9B, the fixing portion 71 is provided with a contact piece 715. The contact piece 715 protrudes from the edge of the recess 714 in the thickness direction of the fixed portion 71 and contacts the protrusion 82 from one side in the longitudinal direction of the stopper 7. Specifically, the contact piece 715 protrudes downward from the left edge of the recess 714 and contacts the left side surface of the protrusion 82. When the second restricting piece 732 receives a force in the second direction from the reel 5, the stopper 7 is pulled to the upper right by the reel 5, so that the protrusion 82 has a left edge portion of the recess 714 of the stopper 7. From above, a force is applied to the upper right. In the present embodiment, since the stopper 7 includes the contact piece 715, the force applied to the protrusion 82 from the edge portion of the recess 714 can be dispersed by the contact piece 715. Furthermore, in the present embodiment, the contact piece 715 is formed by bending the edge portion of the recess 714 in the stopper 7, and the boundary between the edge portion of the recess 714 and the contact piece 715 is formed in an R shape. ing. Thereby, compared with the case where the boundary of the edge part of the recessed part 714 and the contact piece 715 is not R shape, possibility that the edge part of the recessed part 714 will bite into the projection part 82 is low.

  As shown in FIGS. 9A, 9B, and 10, in the suspended outlet 10 of the present embodiment, the tip of the first leg piece 712 and the tip of the second leg piece 713 are chamfered. In particular, the tip of the first leg piece 712 on the side close to the restricting portion 73 is chamfered. Therefore, even if a force in the second direction is applied to the second restriction piece 732 from the reel 5 and the stopper 7 is pulled to the upper right by the reel 5, the tips of the leg pieces 712 and 713 can bite into the holding frame 81. The nature is low. The tips of the leg pieces 712 and 713 may be formed in an R shape or a C shape.

  Further, as illustrated 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 both ends in the longitudinal direction of the stopper 7 in the flat plate portion 711 of the stopper 7, and are in surface contact with the flat plate portion 711. Thereby, the rotation of the fixing portion 71 in the plane perpendicular to the front-rear direction (in the plane parallel to the paper surface of FIG. 8) is suppressed, and the inclination of the fixing portion 71 around the longitudinal direction of the stopper 7 is suppressed. Is done. Specifically, the first contact portion 831 is in surface contact with the right end portion of the upper surface of the flat plate portion 711, and the second contact portion 832 is in surface contact with the left end portion of the upper surface of the flat plate portion 711. In order to increase the contact area between the first contact portion 831 and the second contact portion 832 and the flat plate portion 711, the distance between the first contact portion 831 and the second contact portion 832 is set to the first leg. The distance between the piece 712 and the second leg piece 713 is set to be smaller. In the present embodiment, the interval between the first contact portion 831 and the second contact portion 832 is set to about ½ of the interval between the first leg piece 712 and the second leg piece 713.

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

  In particular, the holding frame 81 is provided with a fifth reinforcing rib 815 on the outer peripheral portion of the portion in contact with the tip of the first leg piece 712. The holding frame 81 is provided with fourth reinforcing ribs 814 on the outer peripheral portion of the portion that contacts the tip of the second leg piece 713. As a result, even if the second restricting piece 732 receives a force in the second direction from the reel 5 and the stopper 7 is pulled right upward by the reel 5, the holding frame is held by the fourth reinforcing rib 814 and the fifth reinforcing rib 815. 81 is prevented from being deformed.

  The suspension-type outlet 10 of the present embodiment includes the above-described protection structure, so that even when a force is applied from the reel 5 to the second restricting piece 732, the displacement of the fixing portion 71 can be suppressed. it can. Moreover, the suspension type outlet 10 of this embodiment can hold | maintain the stopper 7 which receives the restoring force of the winding spring 62 more firmly by providing said protective structure. Therefore, the plate | board thickness of the winding spring 62 can be thickened, the restoring force of the winding spring 62 can be made high, and the fall of the case which is not intended can be suppressed further.

(3) Advantages As described above, the suspended outlet 10 according to the present embodiment includes the case 1, the outlet body 2, and the cable 3. The case 1 is suspended from the suspended structure 9. The outlet body 2 has a connection surface 23 in which an insertion hole 231 for inserting a plug blade is formed. At least a part of the outlet body 2 is housed in the case 1 so that the connection surface 23 is exposed from the opening 103 formed in the case 1. The cable 3 has a curl portion 33, a first connection end 31, and a second connection end 32. The curled portion 33 is formed in a coil shape having a straight line along the vertical direction as a central axis Z1. The first connection end 31 is connected to the upper end portion 332 of the curl portion 33 and is electrically connected to the power source. The second connection end 32 is connected to the lower end portion 331 of the curl portion 33 and is electrically connected to the outlet body 2. The cable 3 is introduced into the case 1 from an introduction port 101 formed at the upper end portion of the case 1, and the second connection end 32 is connected to the outlet body 2 in the case 1. The case 1 has a curl storage space 131 that is connected to the external space of the case 1 at the introduction port 101 and stores the lower end portion 331 of the curl portion 33.

  According to this configuration, the cable 3 is introduced into the case 1 from the introduction port 101 formed at the upper end portion of the case 1, and the lower end portion 331 of the curled portion 33 of the cable 3 is stored in the curl inside the case 1. It is stored in the space 131. Therefore, even if a tension acts on the case 1 from the cable 3, the direction in which the tension acts is a direction along the central axis Z1 of the curled portion 33, and the inclination of the case 1 with respect 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 1, the interference between the curled portion 33 and the case 1 is less likely to occur, and the vertical direction caused by the interference between the curled portion 33 and the case 1 The inclination of case 1 can also be suppressed. As a result, it is possible to provide a suspended outlet 10 that can suppress the inclination of the case 1 with respect to the vertical direction.

  Further, as in the present embodiment, the introduction port 101 is formed on the introduction path P1 that connects the curl storage space 131 and the external space of the case 1, and the introduction path P1 is within a plane orthogonal to the vertical direction. It is preferable that the curl portion 33 has a shape turning around the central axis Z1. According to this configuration, the cable 3 is introduced into the case 1 from the introduction port 101 along the introduction path P1 that turns around the central axis Z1 of the curled portion 33 in a plane orthogonal to the vertical direction. Become. Therefore, at the introduction port 101, the shape (spiral shape) of the curled portion 33 is not easily broken, and the load acting on the case 1 from the cable 3 can be suppressed to a small value. However, this configuration is not essential for the suspended outlet 10, and the introduction path P1 may be omitted as appropriate.

  Further, as in the present embodiment, the case 1 further includes a clamp portion 106 that holds the lower end portion 331 of the curl portion 33 by sandwiching a part of the lower end portion 331 of the curl portion 33 in the curl storage space 131. Is preferred. According to this configuration, since the lower end portion 331 of the curl portion 33 is held in the curl storage space 131, the clamp portion 106 functions as a stopper for removing the cable 3 from the case 1. Moreover, since the lower end portion 331 of the curled portion 33 is held, even if tension is applied from the cable 3 to the case 1, the movement of the lower end portion 331 of the curled portion 33 in the case 1 is suppressed. However, this configuration is not essential for the suspended outlet 10, and the clamp 106 may be omitted as appropriate.

  Further, as in the present embodiment, a portion of the curled portion 33 located outside the case 1 expands and contracts along the central axis Z1 of the curled portion 33 according to the distance between the case 1 and the suspended structure 9. It is preferable that the configuration is possible. According to this configuration, when the distance between the case 1 and the suspended structure 9 changes due to the expansion and contraction of the curled portion 33, the cable 3 is prevented from being loosened. However, this configuration is not essential for the suspended outlet 10, and the curled portion 33 does not have to expand and contract.

  Further, as in the present embodiment, the case 1 preferably further includes an outlet storage space 132 in which the outlet main body 2 is stored, and a relay space 133 positioned between the curl storage space 131 and the outlet storage space 132. . In this case, the relay space 133 preferably includes an inlet 135 connected to the curl storage space 131 and an outlet 136 connected to the outlet storage space 132. In this case, the entrance 135 of the relay space 133 is configured to pass the cable 3 along a direction intersecting the vertical direction, and the outlet 136 of the relay space 133 is configured to pass the cable 3 along the vertical direction. It is preferable. According to this configuration, the extension direction of the cable 3 is changed between the inlet 135 and the outlet 136 in the relay space 133, so that the cable 3 is prevented from coming off relatively firmly with respect to the case 1. However, this configuration is not essential for the suspended outlet 10, and the relay space 133 may be omitted as appropriate.

  In this case, as in the present embodiment, the cross-sectional shape of the cable 3 is flat, and the thickness direction of the cable 3 at the entrance 135 of the relay space 133 and the thickness of the cable 3 at the exit 136 of the relay space 133 are set. The directions preferably cross each other. According to this configuration, the cable 3 is held in a twisted state between the inlet 135 and the outlet 136 in the relay space 133, so that the cable 3 is more securely prevented from coming out of the case 1. . However, this configuration is not essential for the suspended outlet 10, and the cross-sectional shape of the cable 3 may not be a flat shape.

  Further, as in this embodiment, the suspended outlet 10 is pulled out of the case 1 from a string hole 102 formed on the upper surface of the case 1 and is fixed to the suspended structure 9 outside the case 1. 4 and a reel 5 are further preferably provided. The reel 5 is housed in the case 1 and winds up the string body 4. The string body 4 is preferably located on the central axis Z1 of the curled portion 33 outside the case 1. According to this configuration, the string body 4 that holds the case 1 in a state where the case 1 is suspended from the suspension structure 9 is located on the central axis Z1 of the curled portion 33. Is more suppressed. However, this configuration is not essential for the suspended outlet 10, and the string body 4 and the reel 5 may be omitted as appropriate.

(4) Modification The suspended outlet 10 according to the above embodiment is merely an example of the present invention, and the present invention is not limited to the above embodiment, and the present invention is not limited to the above embodiment. Various modifications can be made according to the design or the like as long as they do not depart from the technical idea of the invention. Below, the modification of the said embodiment is enumerated.

  The suspended outlet 10 is not limited to being used indoors but may be an outdoor outlet used outside the building. The suspended outlet 10 has, for example, not only an outlet but also a switch for turning on / off energization, a human sensor, a timer, an energization state display function, an overcurrent interruption function, and the like. It may be. Furthermore, the outlet body 2 of the suspended outlet 10 may not have a lock mechanism that prevents the plug from coming off. Further, the outlet body 2 is not limited to having a grounding electrode, and may be without a grounding electrode. For example, the outlet body 2 may be an outlet for AC 200V or DC. The outlet body 2 is not limited to a two-port type outlet, and may be, for example, a one-port type or a three-port type outlet. The outlet body 2 is not limited to the A type outlet, and may be an outlet to which a plug having a pin-shaped plug blade, such as a B type and a C type, can be connected.

  The suspended structure 9 from which the suspended outlet 10 is suspended is not limited to the ceiling of the building, but may be a structure such as a beam of a building, or a wiring duct fixed to the ceiling. It may be a structure.

  The cable 3 is not limited to a flat cable such as a vinyl parallel cord (VFF), but may be, for example, a round cable, or a plurality of core wires (a pair of power supply wires and a ground wire). It may not be integrated with one insulating coating. Further, the cable 3 may be a single wire whose core is made of one conductor.

  Further, the outlet 136 of the relay space 133 may be configured to pass the cable 3 along 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 opposing direction of the pair of outlet bosses 115 may not be parallel to the left-right direction. Furthermore, the entrance 135 of the relay space 133 may be configured to pass the cable 3 along a direction intersecting the vertical direction. For example, the facing direction of the pair of entrance bosses 114 is parallel to the vertical direction. There may be.

DESCRIPTION OF SYMBOLS 1 Case 2 Outlet main body 3 Cable 4 String body 5 Reel 9 Hanging structure 10 Hanging type outlet 23 Connection surface 31 1st connection end 32 2nd connection end 33 Curl part 101 Inlet 102 String hole 103 Opening part 106 Clamp part 131 Curl storage space 132 Outlet storage space 133 Relay space 135 (Relay space) inlet 136 (Relay space) outlet 231 Insertion hole 331 (Curl portion) lower end portion P1 Introduction path Z1 Central axis

Claims (7)

A case suspended from a suspended structure;
An outlet main body having a connection surface in which an insertion hole for inserting a plug blade is formed and at least a part of which is accommodated in the case so as to expose the connection surface from an opening formed in the case; ,
A curled portion formed in a coil shape having a straight line along the vertical direction as a central axis, a first connection end connected to an upper end portion of the curled portion and electrically connected to a power source, and a lower end portion of the curled portion A cable having a second connection end connected to the outlet body and electrically connected to the outlet body,
The cable is introduced into the case from an introduction port formed at the upper end of the case, and the second connection end is connected to the outlet body in the case.
The hanging type outlet is characterized in that the case has a curl storage space that is connected to an external space of the case at the introduction port and stores the lower end portion of the curl portion. The introduction port is formed on an introduction path that connects the curl storage space and the external space of the case,
The suspended outlet according to claim 1, wherein the introduction path has a shape that turns around the central axis of the curl portion in a plane orthogonal to the vertical direction. The said case further has a clamp part which hold | maintains the said lower end part of the said curl part by pinching | interposing a part of said lower end part of the said curl part in the said curl storage space. The suspended outlet described. A portion of the curled portion located outside the case is configured to be stretchable along the central axis of the curled portion according to a distance between the case and the suspended structure. The suspended outlet according to any one of claims 1 to 3. The case further includes an outlet storage space in which the outlet main body is stored, and a relay space located between the curl storage space and the outlet storage space,
The relay space has an inlet connected to the curl storage space and an outlet connected to the outlet storage space,
The entrance of the relay space is configured to pass the cable along a direction intersecting the vertical direction,
The suspended outlet according to any one of claims 1 to 4, wherein the outlet of the relay space is configured to pass the cable along the vertical direction. The cross-sectional shape of the cable is a flat shape,
The suspended outlet according to claim 5, wherein a thickness direction of the cable at the entrance of the relay space and a thickness direction of the cable at the exit of the relay space intersect each other. A string body that is pulled out of the case from a string hole formed on the upper surface of the case and is fixed to the suspended structure outside the case;
A reel that is housed in the case and winds up the string,
The suspended outlet according to any one of claims 1 to 6, wherein the string body is located on the central axis of the curled portion outside the case.

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