JP6675080B2 - Hanging outlet - Google Patents

Description

  The present invention relates generally to hanging outlets, and more particularly, to hanging outlets suspended from a suspended structure.

  2. Description of the Related Art Conventionally, there has been known a hanging type outlet including a cord suspended from a support fixed to a ceiling and a case provided at a tip of the cord so as to be able to move up and down (for example, see Patent Document 1).

  The (ceiling) suspension type outlet described in Patent Literature 1 includes a lifting mechanism that raises and lowers a case (main body) by changing the length of a cord body. The lifting mechanism includes a reel (rewinding reel) that winds the cord body by rotating, a stopper (stopper spring) that regulates the rotation of the reel, and a cam shaft that releases the regulation of the reel by the stopper and raises the case. It has. The reel is rotationally urged by a winding spring (spring spring) in a direction to wind the cord body.

  In the hanging outlet described in Patent Literature 1, a plurality of recesses (locking recesses) are formed at substantially equal intervals on the outer periphery of the lower drum of the reel, and the stopper is provided on the outer peripheral surface of the lower drum including the recesses. I am in contact with When the reel rotates in the direction in which the cord is extended, the reel rotates without the stopper being locked in the recess. On the other hand, when the reel rotates in a direction to wind up the cord body, the tip of the stopper fits into the recess to restrict the rotation of the reel.

JP 2007-193959 A

  In the hanging outlet described in Patent Literature 1, the weight of an object (plug and cord of an electric device connected to the outlet body) suspended from the case is such that the reel is pulled out of the reel in a direction in which the cord is fed. Give the power to rotate. In the hanging outlet described in Patent Literature 1, the reel is prevented from rotating in the direction in which the cord is fed out by the restoring force of the winding spring. For this reason, when an object exceeding the weight that can be supported by the restoring force of the take-up spring is suspended from the case, the reel rotates in the direction in which the cord is pulled out, and the case descends below the intended position. there is a possibility.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a hanging outlet that can suppress unintentional descent of a case.

  A hanging outlet according to one embodiment of the present invention includes a case, an outlet body, a cable, a string, a reel, a winding spring, a stopper, and a release button. The case is suspended from a suspension 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 main body is housed in the case so that the connection surface is exposed from an opening formed in the case. The cable electrically connects a power supply and the outlet main body. The cord body is drawn out of the case through a cord hole formed in the case, and is fixed to the suspension structure outside the case. The reel is configured to wind up the cord. The reel is housed in the case so as to be rotatable in a direction in which the string is wound and in a direction in which the string is extended. The winding spring gives the reel an elastic force that rotates in a direction in which the string is wound. The stopper is accommodated in the case and is displaced between a restriction position for restricting rotation of the reel and a release position for permitting rotation of the reel. The release button displaces the stopper between the restriction position and the release position. The reel has at least one radially concave recess on the periphery of the reel. The stopper has a first regulating piece and a second regulating piece located in the recess of the reel at the regulating position. The first restricting piece has a function of restricting rotation of the reel in a direction in which the reel is wound at the restricting position. The second restricting piece has a function of restricting rotation of the reel in the direction in which the cord body is extended in the regulating position, and the second regulating piece receives the rotational force of the reel in the direction in which the cord body is extended. It has the function of displacing the piece out of the recess.

  The present invention has an advantage that unintentional lowering of a case can be suppressed.

FIG. 1 is a front view of a hanging outlet according to one embodiment of the present invention with a cover removed. FIG. 2 is a perspective view of the hanging outlet according to the first embodiment as viewed obliquely from the front. FIG. 3 is a perspective view of the hanging outlet according to the first embodiment as viewed obliquely from behind. FIG. 4 is a front view of the hanging outlet according to the first embodiment. FIG. 5 is an exploded perspective view of the hanging outlet according to the first embodiment as viewed obliquely from the front. FIG. 6 is an exploded perspective view of the hanging outlet according to the first embodiment, as viewed obliquely from behind. FIG. 7A is an enlarged perspective view of a main part of the hanging outlet with the cover and cables removed therefrom. FIG. 7B is an enlarged perspective view of a main part of the hanging outlet with the cover removed therefrom. FIG. 8 is a cross-sectional view of another main part of the above-described hanging outlet with the cover removed. FIG. 9A is an enlarged view of the body and the stopper in the above-described hanging outlet with the stopper removed from the body. 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-mentioned hanging outlet. FIG. 10 is a side view of a stopper used in the above-mentioned hanging outlet.

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

  The hanging outlet 10 according to the present embodiment has a function of an outlet (Outlet) in which a plug of an electric device is connected to the outlet main body 2 to supply power to the electric device. Here, as the outlet main body 2 of the suspension type outlet 10, a two-port type outlet for AC 100V with a grounding electrode and capable of simultaneously connecting two plugs is exemplified. Further, in the present embodiment, an example of an indoor hanging outlet 10 used in a state where the hanging structure 9 is a ceiling of a building and is used while being hung on the ceiling is illustrated. The building in which the hanging outlet 10 is used may be a non-residential house such as a factory, a school, a store, and a hospital, or may be a detached house, an apartment house, or the like.

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

  The hanging outlet 10 further includes a string 4 for hanging the case 1 from the hanging structure 9 and a reel 5 for winding the string 4. The reel 5 is housed in the case 1. The cord body 4 is drawn out of the case 1 from a cord hole 102 formed on the upper surface of the case 1. The distal end of the cord body 4 drawn out of the case 1 is fixed to the suspension structure 9 outside the case 1. As a result, the load applied to the case 1 is applied to the suspension structure 9 via the cord body 4, and the case 1 is suspended from the suspension structure 9. Furthermore, the distance between the case 1 and the suspension structure 9 along the vertical line is determined by the amount of the string 4 pulled out from the case 1, so that the reel 5 winds and unwinds the string 4. By doing so, the case 1 moves (elevates) along the vertical line. As will be described in detail later, since the rotation direction of the reel 5 is limited by the ratchet mechanism so that only the cord body 4 can be extended, the cord body 4 is pulled out of the case 1 by pulling the cord body 4. It is possible. When the release button 61 is operated with the cord body 4 pulled out, the restriction by the ratchet mechanism is released, and the restoring force acting on the reel 5 from the winding spring 62 causes the cord body 4 to be wound. Then, the reel 5 rotates.

  The hanging outlet 10 configured as described above can raise and lower the case 1 in a state of being hung by the hanging structure 9, whereby the height of the case 1 can be adjusted. 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 operate the release button 61 to raise the case 1. 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 during use), the case 1 can be lowered to a desired height. The hanging outlet 10 is used for supplying electric power to various electric devices such as a power tool, a lighting device, and a cleaning device.

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

  As shown in FIGS. 1 to 6, the hanging outlet 10 according to the present embodiment includes a release button 61, a take-up spring, a case 1, an outlet main body 2, a cable 3, a string 4, and a 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 hanging outlet 10 with the cover 12 removed.

  In the present embodiment, a direction perpendicular (orthogonal) to the horizontal plane in a state where the hanging outlet 10 is attached to the ceiling of the building as the hanging structure 9 is referred to as “vertical direction”, and Direction) is described as “downward”. Further, the direction orthogonal to the up-down direction, that is, the direction in which the body 11 and the cover 12 in the case 1 are combined is referred to as “front-back direction”, and the cover 12 side as viewed from the body 11 is referred to as “front”. Further, a direction orthogonal to both the up-down direction and the front-rear direction will be referred to as a “left-right direction”, the right side of the hanging outlet 10 as viewed from the front will be referred to as “right”, and the left side will be referred to as “left”. Arrows indicating “vertical direction”, “front-back direction”, and “left-right direction” in the drawings are merely described for explanation, and do not accompany entities. However, these directions are not intended to limit the directions in which the hanging outlet 10 is used.

  As shown in FIG. 4, the flange portion 90 is fixed to the suspension structure 9 using, for example, a dedicated mounting bracket. Thereby, the suspension outlet 10 is attached to the suspension structure 9 with the flange portion 90 holding the upper ends of the cable 3 and the cord 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 cord body 4 are drawn downward from the center of the lower surface of the flange portion 90. Inside the flange portion 90, the first connection end 31 serving as the upper end of the cable 3 is electrically connected to a power supply portion such as an embedded outlet. That is, in the hanging outlet 10, both the mechanical connection to the hanging structure 9 and the electrical connection to the power supply (system power supply or the like) are performed at the flange portion 90.

  The case 1 is made of a synthetic resin and houses the outlet main body 2 and the like. As an example, case 1 is made of ABS resin. The case 1 has a flat shape in the front-rear direction and a “vertical shape” that is longer in the vertical direction than in the left-right direction. Further, the case 1 has a tapered shape such that the dimensions in the left-right direction and the front-back direction decrease as approaching the upper end. Here, the case 1 employs a shape that is connected without a step from the lower end to the upper end, that is, a so-called “one motion form”. Specifically, the outer peripheral surface of the case 1 is gently curved so as to protrude outward from the lower end to the middle part in the vertical direction, and is convex inward from the middle part in the vertical direction to the upper end. It is gently curved. Further, the outer peripheral surface of the case 1 is a curved surface that is connected without a step over the entire circumference when viewed from above. With such a shape, for example, by gripping the upper part of the case 1, even a user with relatively small hands can easily grip the case 1 and the lifting operation of the case 1 becomes easy. The surface of the case 1 is made of a textured (embossed) uneven surface. The “texture processing” here is processing for forming a fine wrinkle pattern (texture) on the surface of the case 1 at the time of molding the case 1.

  Further, 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 body 11 has an open front surface, and the cover 12 has an open rear surface. The body 11 and the cover 12 are joined in the front-rear direction such that their openings are aligned. Thereby, an internal space 13 (see FIG. 1) for accommodating the outlet main 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) projecting rearward from the inner peripheral edge of the opening on the rear surface. The cover 12 is joined to the body 11 by fastening a plurality of (three in this case) joining screws 14 to the cover 12 through the body 11 in a state where the joining claw 121 is hooked on the joining hole 111.

  Here, the internal space 13 of the case 1 is divided into four spaces of a curl storage space 131, an outlet storage space 132, a relay space 133, and a winding space 134, as shown in FIG. . 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 (lower end portion 331) of the curl portion 33 of the cable 3 described later is stored. The outlet storage space 132 is a space in which the outlet main 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 cord body 4, such as the reel 5, the winding spring 62, and the stopper 7, is housed. 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 curl storage space 131, relay space 133, winding space 134, and outlet storage space 132 in the case 1 from above. 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 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 merely spaces in which the internal space 13 of the case 1 is divided according to functions, and a boundary between these four spaces (indicated by a dashed line in FIG. 1) is such that the space is physically separated. There are no partition walls or the like. 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 the up-down direction. In the present embodiment, the inlet 101 penetrates the body 11 in the front-back 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 inlet 101 is opened upward so that the cable 3 can be easily inserted into the inlet 101 from above. Further, the inlet 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. This will be described in detail in the section “(2.2) Cable routing structure”. With this configuration, the central axis of the curl portion 33 in a state where the curl portion 33 of the cable 3 is introduced into the case 1 from the inlet 101. Z1 passes through a substantially central portion of the upper surface of the case 1. The cover 12 has a protruding piece 123 projecting rearward from the inner peripheral edge of the rear opening at a position facing the inlet 101 at the upper end. The lower surface of the projecting piece 123 is formed in an R (R) shape. Thereby, even if the cable 3 is pulled upward in a state where the cable 3 is inserted into the introduction port 101, for example, the cable 3 contacts the lower surface of the protruding piece 123 and biting of the cover 12 into the cable 3 is suppressed. You.

  On the upper surface of the case 1, a string hole 102 for pulling out the cord body 4 out of the case 1 is formed. The cord 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. Thus, the cord body 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 up-down direction. Here, the cord hole 102 is formed on the boundary between the body 11 and the cover 12 so that the cord body 4 can be easily inserted into the cord hole 102 from the front. In the present embodiment, a pair of semicircular holes formed in each of the body 11 and the cover 12 when viewed from above are combined to form one circular cord hole 102. The routing of the cord 4 in the case 1 will be described later.

  An opening 103 for exposing the outlet main 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. Around the opening 103 in the case 1, a pair of holding structures 112 and 122 for holding the outlet main body 2 are provided. 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 oppose each other in the front-rear direction with the opening 103 interposed therebetween.

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

  Further, a button recess 124 for storing 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. An operation hole 125 through which a push rod 611 of the release button 61 to be described later passes is formed on the bottom surface of the button recess 124. The operation hole 125 penetrates the cover 12 in the front-rear direction.

  The outlet main 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 forms a connection surface 23 for connecting a plug. An insertion hole 231 for inserting a plug blade (or pin) of the plug is formed in the connection surface 23. The outlet main body 2 has a lock mechanism for preventing the plug blade (or pin) of the plug from coming off by rotating the plug.

  Outlet body 2 is at least partially housed in case 1 so that connection surface 23 is exposed from opening 103 formed in case 1. In the present embodiment, the outlet main 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 main body 2 is housed in the case 1. The outlet main body 2 is held in the opening 103 by being sandwiched between the holding structure 112 of the body 11 and the holding structure 122 of the cover 12 from both sides in the front-rear direction.

  Further, the outlet main 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 (earth wire) are connected to the outlet main body 2.

  The cable 3 has 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 332 (see FIG. 4) of the curl portion 33 and is electrically connected to a power supply. The first connection end 31 is housed in the flange portion 90. The second connection end 32 is connected to the lower end 331 of the curl portion 33 and is electrically connected to the outlet main body 2. The second connection end 32 is housed in the case 1. These first connection end 31 and second connection end 32 are electrically connected via a curl portion 33.

  The curl portion 33 is formed in a coil shape having a central axis Z1 as a straight line (vertical axis) along the vertical direction (vertical direction). Here, the central axis Z1 in the drawing is merely an illustration for explanation, and is a virtual line without any entity. That is, the curl portion 33 is configured such that a part of the cable 3 is formed in a helix shape around the central axis Z1. The helix here refers to a curve that rises in one direction along a central axis Z1 perpendicular 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 as viewed from above from below. The curl portion 33 has elasticity similarly to the extension coil spring, and is configured to be extendable along the central axis Z1. That is, the curl portion 33 is a so-called curl code, and is configured to be extendable and contractable along the central axis Z1. The curl portion 33 has a cylindrical shape centered on the central axis Z1 when it is not stretched (at the time of close contact).

  In the present embodiment, the cable 3 has a plurality of cores (a pair of power supply wires and a ground wire), such as a vinyl parallel cord (VFF), which are arranged in parallel at a predetermined interval. 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 section. Further, the cable 3 is formed so as to be flat in the curl portion 33 in the radial direction (radial direction). In the present embodiment, the cable 3 is a stranded wire having a plurality of conductors.

  In this embodiment, the cord body 4 is a twisted thread made of a synthetic resin. One end of the cord body 4 is fixed to the reel 5 in the case 1, 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 cord hole 102, and the cord 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 tip is fixed to the suspension structure 9 outside the case 1. As shown in FIG. 1, the cord body 4 is located outside the case 1 on the central axis Z1 of the curl portion 33. In the hanging outlet 10, by changing the amount of winding of the string 4 by rotating the reel 5, the amount of the string 4 pulled out from the case 1 is changed, and the distance between the hanging structure 9 and the case 1 is changed. The distance changes. Note that the entire length of the cord 4 is appropriately set according to the place where the hanging outlet 10 is expected to be used. For example, the hanging structure 9 (ceiling) of a building in which the hanging outlet 10 is used is used. ) To the floor or a length shorter than this distance.

  The reel 5 winds and unwinds the cord body 4. The reel 5 is made of a synthetic resin, for example, an ABS resin. As shown in FIGS. 5 and 6, the reel 5 has a cylindrical shape, a first drum 51 around which the cord body 4 is wound, a first flange 52 radially protruding from a front edge of the first drum 51, And a second flange 53 projecting radially from the rear end of the first drum 51. That is, the reel 5 is formed in a so-called bobbin shape. A string hanging groove 521 is formed in the first flange 52, and one end of the string body 4 is hooked and fixed to the string hanging groove 521. A second drum 54 is provided on the outer edge of the second flange 53 to protrude rearward. 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 peripheral 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 on the front side of the center in the front-rear direction and behind the first flange 52. On the front and rear surfaces of the front wall 55, a rotation shaft 551 is provided concentrically with the first drum 51 (see FIGS. 6 and 8). On the front surface of the front wall 55, a cylindrical third drum 552 is provided concentrically with the rotation shaft 551. The rotation 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 inside the third drum 552. Thereby, the reel 5 is held by the case 1 so as to be able to rotate 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 smaller in diameter than the first drum 51, and is provided inside the first drum 51 and the second drum 54 non-concentrically with the first drum 51 and the second drum 54. Have 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 formed by winding an elastic metal plate in a spiral shape. The take-up spring 62 has a spiral shape that rotates counterclockwise from inside to outside as viewed from the front. The vortex means a curve that moves away from the center as it turns on the same plane. The take-up spring 62 has an outer end inserted and held in the insertion groove 561 of the spring holding frame 56, and an inner end wound in a holding tube 116 provided on the body 11 to hold the winding tube 62. 116. The take-up spring 62 gives the reel 5 an elastic force in a direction in which the string body 4 is taken up (clockwise as 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 arranged below the reel 5 in the case 1. The stopper 7 is held by the holding portion 8 so that the short direction is along the front-rear direction and the long direction is inclined upward to the right by a specified angle θA with respect to the horizontal plane. The holding section 8 is provided on the case 1.

  As shown in FIG. 10, the stopper 7 has a fixing part 71, an elastic part 72, and a regulating part 73. The fixing portion 71, the elastic portion 72, and the regulating portion 73 are arranged in this order in the longitudinal direction of the stopper 7. In the present embodiment, the fixed portion 71, the elastic portion 72, and the regulating portion 73 are arranged in this order from left to right.

  The fixing portion 71 is a portion held by the holding portion 8 in the stopper 7. The fixing portion 71 has a flat plate portion 711, and first leg pieces 712 protruding from one longitudinal end of the stopper 7 in the flat plate portion 711 to one side in the thickness direction of the flat plate portion 711 (to the lower right in FIG. 1). And a second leg 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 section 8 has a holding frame 81 provided on the 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 provided such that its longitudinal direction is inclined upward to the right by a specified angle θA with respect to a horizontal plane. Further, in the holding frame 81, a rectangular parallelepiped space (first relief space) formed by the central portion of the upper wall being depressed upward, and a rectangular parallelepiped space by the central portion of the lower wall being depressed downward. (A second escape space). The holding frame 81 contacts the left end of the upper surface of the flat plate portion 711, the right end of the upper surface of the flat plate portion 711, the tip of the first leg 712, and the tip of the second leg 713 to move the fixing portion 71 from all sides. keeping. As a result, the fixing portion 71 is held by the holding frame 81 in a state in which the fixing portion 71 is inclined to the right by a specified angle θA with respect to the horizontal plane. In the present 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 continuous with the fixed portion 71. The elastic portion 72 is formed of a cantilever plate spring, and is elastically deformable in the thickness direction with the end 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 elastic portion 72 from the fixed portion 71. The restricting portion 73 has 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 regulating piece 731 is continuous with the connecting piece 733 and has a flat plate shape inclined with respect to the connecting piece 733.

  As shown in FIGS. 1 and 8, the stopper 7 is a state in which the elastic portion 72 is elastically deformed so that the regulating portion 73 is displaced downward with the end of the elastic portion 72 on the fixed portion 71 side as a fixed end. The first restriction piece 731 and the second restriction 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 “regulation position”. In the regulation position, the rotation of the reel 5 in the direction in which the cord body 4 is wound (clockwise in FIG. 1) is regulated by the first regulation piece 731 contacting the right side surface of the recess 541. At the regulation position, the end of the elastic portion 72 on the regulation 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 extending downward and to the right (in a direction in which the elastic portion 72 elastically deforms) from the boundary between the elastic portion 72 and the regulating portion 73. The hook piece 74 is formed in a J shape when viewed from the front, and has a shape to be hooked on the rear end of the push rod 611 of the release button 61. When the push rod 611 is displaced rearward, the hook piece 74 is pushed rearward and downward by the push rod 611. At this time, the rectangular support plate provided on the hook piece 74 comes into contact with the inverted U-shaped rib provided behind the support plate on the body 11, thereby restricting the hook piece 74 from moving backward. You. As a result, the hook piece 74 is displaced downward. When the hook piece 74 is pushed down by the push rod 611 and displaced downward, the elastic portion 72 is elastically deformed downward, and the first regulating piece 731 and the second regulating piece 732 come off from the recess 541. Hereinafter, the position of the stopper 7 in a state where the first restriction piece 731 and the second restriction piece 732 are separated from the recess 541 is referred to as a “release position”. In the release position, the first regulating piece 731 is located outside the recess 541, so that rotation of the reel 5 in a direction in which the cord body 4 is wound up 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, for example, 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 rod-shaped push rod 611 having a tapered rear end. When the release button 61 is pushed by the user, the push rod 611 moves backward, 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. When the user releases the release button 61, the release button 61 moves forward by the restoring force of the return spring 612. As a result, the force applied to the hook piece 74 from the push rod 611 disappears, 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, a cable routing structure to be introduced into the case 1 from the inlet 101 will be described in more detail with reference to FIGS. 1, 7A, and 7B. 7A and 7B are enlarged perspective views of the main parts with the cover 12 removed.

  The cable 3 is introduced into the case 1 from an inlet 101 formed at the upper end of the case 1. The cable 3 has a second connection end 32 connected to the outlet main 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 inlet 101. The curl storage space 131 is a space for storing the lower end 331 of the curl portion 33 of the cable 3 as described above. That is, in the hanging outlet 10 according to the present embodiment, the cable 3 is introduced into the case 1 from the introduction port 101 such that at least the lower end 331 of the curl portion 33 is housed in the case 1. .

  Since the lower end portion 331 of the curl portion 33 is a part of the curl portion 33, the lower end portion 331 has a shape that turns around the central axis Z1. Therefore, in the present embodiment, an introduction path P1 is formed which turns around the central axis Z1 of the curled portion 33 in a plane (horizontal plane) orthogonal to the vertical direction. Has been introduced within. The introduction path P <b> 1 is a path of the cable 3 and connects the curl storage space 131 and the external space of the case 1. And the introduction port 101 is formed on the introduction path P1. Thereby, 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 shown by the arrow A1. Therefore, in the case 1, the lower end portion 331 of the curl portion 33 can be stored 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 specifies the path of the cable 3 for description, and does not have any substance. Similarly, an arrow A1 in FIG. 7B merely conceptually shows a state in which the cable 3 is introduced into the case 1 from the introduction port 101, and has no entity.

  Here, although the lower end 331 of the curl portion 33 is housed in the case 1 although it is a part of the curl portion 33, the lower end portion 331 has a shape affected by the size of the internal space 13 of the case 1. Become. Therefore, the lower end portion 331 of the curl portion 33 may have the same spiral shape as a portion other than the lower end portion 331 of the curl portion 33, or may have a diameter different from that of the curl portion 33 other than the lower end portion 331. For example, the spiral shape may be slightly broken.

  More specifically, the case 1 has a guide surface 105 that projects rearward from the left edge of the inlet 101 in the body 11 and is curved such that the width of the inlet 101 in the left-right direction increases toward the rear. Thus, an introduction path P1 curved so as to turn around the central axis Z1 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 curl portion 33 by sandwiching a part of the lower end portion 331 of the curl portion 33 in the curl storage space 131. In the present embodiment, the clamp portion 106 includes a first clamp piece 113 and a second clamp piece 126 (see FIG. 6) located on both sides in the front-rear 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 inlet 101 and the central axis Z1 in the left-right direction. Further, the front end (front end) 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 (rear end) of the second clamp piece 126 does not protrude from the rear surface (opening surface) of the cover 12, that is, is located forward of the rear surface of the cover 12. Thereby, the curl storage space 131 is pulled so that the lower end portion 331 of the curl portion 33 held by the clamp portion 106 makes a large turn around the central axis Z1 along the inner peripheral surface of the cover 12 from the inlet 101. Turned. Therefore, an introduction path P1 is formed inside the case 1 (that is, the curl storage space 131) with respect to the introduction port 101 so as to rotate around the central axis Z1 through the clamp portion 106.

  By the way, the curl storage space 131 is connected to the outlet storage space 132 through the relay space 133 and the winding space 134 as described above. 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 center axis Z1, and the entrance 135 is also located to the left of the center axis Z1. Here, the entrance 135 includes a space between the pair of entrance bosses 114 formed in the case 1. The outlet 136 includes 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 similarly to the clamp portion 106.

  The pair of entrance bosses 114 are located to the left of the curl storage space 131. The pair of entrance 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 a direction intersecting the vertical direction. In the present embodiment, the facing direction of the pair of inlet bosses 114 is not parallel to the up-down direction, and the upper inlet boss 114 is located above and to the 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 is 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 outlet 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 from the relay space 133 downward. Accordingly, the extension direction of the cable 3 is changed from “lower left” to “down” between the entrance 135 and the exit 136 in the relay space 133.

  Further, the interval between the pair of outlet bosses 115 is set smaller than the interval between the pair of inlet bosses 114. In the present embodiment, the cable 3 is a flat cable having a flat cross section. The interval between the pair of inlet bosses 114 is set to be substantially equal to the longitudinal dimension of the cross-sectional shape of the cable 3. The interval between the pair of outlet bosses 115 is set to be substantially the same as the short dimension of the cross-sectional shape of the cable 3. Thus, at the entrance 135 of the relay space 133, the thickness direction of the cable 3 (the 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 (the 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 entrance 135 and the exit 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 tips (front ends) of the pair of entrance bosses 114 protrude forward from the front surface (opening surface) of the body 11. On the other hand, the tip 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. . Thereby, at the entrance 135 of the relay space 133, the pair of entrance bosses 114 can hold the cable 3 inside the cover 12. On the other hand, at the outlet 136 of the relay space 133, the pair of outlet bosses 115 can hold the cable 3 inside the body 11.

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

(2.3) Winding Mechanism Next, a winding mechanism of the cord 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 of the hanging outlet 10 of the present embodiment with the cover 12 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 rotation axis 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 is turned clockwise as viewed from the front (the direction of the virtual arrow B1 shown in FIG. 8; (Referred to as “first direction”) from the take-up spring 62.

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

  Further, a stopper 7 is arranged in the case 1. At the restricting position of the stopper 7, the restricting 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 surface and the left side surface of the concave portion 541 in the concave portion 541, respectively.

  When the force in the second direction from the cord 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 contacts the first restriction piece 731, and a force in the first direction is applied to the first restriction piece 731 from the reel 5. At the same time, as a reaction of this force, a force in the second direction is applied from the first regulating piece 731 to the reel 5.

  Here, the first predetermined angle θ1 between the first restricting piece 731 of the stopper 7 and the connecting piece 733 is set to less than 90 ° as shown in FIGS. 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 attempts to rotate in the first direction, the force applied from the reel 5 (the right side surface of the recess 541) to the first regulating piece 731 is the tangential direction of the reel 5 (the second drum 54). More upward force. For this reason, even if the force applied from the reel 5 to the first restricting piece 731 increases, this force is a force for displacing the first restricting piece 731 upward (toward the center of the reel 5). The part 73 does not come off from the recess 541. As a result, when the force from the cord body 4 is smaller than the force from the winding spring 62, in the reel 5, the force in the first direction by the winding spring 62 and the force from the cord body 4 and the first regulating piece 731 are applied. The force in the second direction is balanced. 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 cord body 4 is larger than the force in the first direction by the winding spring 62, the reel 5 is moved in the second direction (the direction of the arrow B2 in FIG. 8). Try to rotate. At this time, the left side surface of the recess 541 contacts 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 regulating piece 732 to the reel 5.

  Here, the fixed portion 71 is inclined by a specified angle θA with respect to the horizontal plane so that the end of the elastic portion 72 on the side of the regulating portion 73 is substantially parallel to the tangential direction of the second drum 54. 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 Further, 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 restriction piece 732 from the reel 5 (the left side surface of the recess 541) is in the tangential direction of the reel 5 (the second drum 54). It is a downward force. Therefore, when the force applied from the reel 5 to the second restricting piece 732 increases, the force becomes a force in a direction for displacing the second restricting piece 732 downward (outward in the radial direction of the reel 5). The portion 73 is displaced downward and comes out of the recess 541. Therefore, when the user pulls the case 1 downward and the force in the second direction applied to the reel 5 from the cord body 4 increases, the second regulating piece 732 comes off from the recess 541 and the reel 5 moves to the second position. It rotates in the direction (the direction in which the cord body 4 is extended).

  As described above, in the hanging outlet 10 of the present embodiment, when the stopper 7 is at the regulation 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. You. In short, the rotation direction of the reel 5 of the hanging outlet 10 of the present embodiment is limited by the ratchet mechanism so that only the rotation in the second direction (the direction in which the cord body 4 is extended) is possible.

  When the user presses the release button 61 to displace the stopper 7 to the release position, the restricting portion 73 comes off 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 take-up spring 62 to take up the cord body 4 into the case 1 and raise the case 1, or the case 1 can resist the restoring force of the take-up spring 62. Is pulled down, the string body 4 can be paid 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 restricting position, the restricting portion 73 is positioned in the recess 541 of the reel 5, and the restricting portion 73 restricts the rotation of the reel 5 again. Will be.

  By the way, as described above, in the hanging outlet 10 of the present embodiment, the stopper 7 is provided with the second restricting piece 732. The second restricting piece 732 functions to restrict the rotation of the reel 5 in the direction in which the cord body 4 is fed out, and the second restricting piece 732 receives the rotational force of the reel 5 in the direction in which the cord body 4 is fed out, and moves the second restricting piece 732 to the recess 541. It has the function of displacing it outside. Hereinafter, the second restriction piece 732 will be described in more detail.

  When the force in the second direction applied to the reel 5 from the cord body 4 is greater than the force in the first direction applied to the reel 5 from the take-up spring 62, the second restricting piece 732 applies these forces. A force in the second direction, which is a resultant force, is applied. Of the resultant force, the component (force in the normal direction of the second drum 54) in the direction in which the second restriction piece 732 is to be removed from the recess 541 is the component of the second restriction piece 732 with respect to the tangential direction of the second drum 54. As the angle approaches 90 °, it becomes 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 come off 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 cord body 4 is fed out. The angle is set close to 90 °.

  Here, as shown in FIG. 8, the stopper 7 is arranged such that the fixing portion 71 is in a horizontal plane 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 the specified angle θA. The angle between the second restriction piece 732 and the end of the elastic portion 72 on the restriction 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 by the second predetermined angle θ2 with respect to the tangential direction of the second drum 54 at the restricting position. 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 one specific example, the specified angle θA is 15 °, and the second predetermined angle θ2 is 110 °. Thus, when the reel 5 attempts to rotate in the second direction, the second restriction piece 732 can suppress the rotation. That is, even if a load exceeding the restoring force of the winding spring 62 is applied to the case 1, the load can be supported by the stopper 7.

(2.4) Protection Structure As described above, in the present embodiment, the stopper 7 is provided with the second restricting piece 732, and even if the load applied to the case 1 exceeds the restoring force of the winding spring 62, The second restriction piece 732 can suppress the reel 5 from rotating in the direction in which the cord body 4 is fed out. In particular, if the width of the stopper 7 (width in the front-rear direction) is increased to increase the elastic force of the elastic portion 72, a larger load can be supported by the second restricting piece 732. However, at this time, a 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 hanging outlet 10 of the present embodiment further includes a protection 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. As shown in FIGS. 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. A projection 82 is provided inside the holding frame 81 of the body 11. The protrusion 82 has a shape corresponding to the recess 714 of the stopper 7, and is pressed into the recess 714. In the present embodiment, the protrusion 82 is a rib extending from upper left to lower right when viewed from the front. Since the protrusion 82 is fitted into the recess 714 in this manner, the displacement of the regulating portion 73 about the fixing portion 71 in the front-rear direction can be suppressed.

  9A and 9B, the fixing portion 71 is provided with a contact piece 715. The contact piece 715 protrudes from the edge of the concave portion 714 in the thickness direction of the fixing portion 71, and comes into contact with the protrusion 82 from one side in the longitudinal direction of the stopper 7. Specifically, the contact piece 715 protrudes downward and to the right from the left edge of the concave portion 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 upward and to the right by the reel 5. Therefore, the protrusion 82 has a portion on the left edge of the concave portion 714 of the stopper 7. From 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 of the concave portion 714 can be dispersed by the contact piece 715. Further, in the present embodiment, the contact piece 715 is formed by bending the edge of the recess 714 in the stopper 7, and the boundary between the edge of the recess 714 and the contact piece 715 is formed in an R shape. ing. Thus, the possibility that the edge portion of the concave portion 714 bites into the protrusion 82 is lower than in the case where the boundary between the edge portion of the concave portion 714 and the contact piece 715 is not an R shape.

  In addition, as shown in FIGS. 9A, 9B, and 10, in the hanging outlet 10 of the present embodiment, the tip of the first leg 712 and the tip of the second leg 713 are chamfered. In particular, the tip of the first leg piece 712 on the side closer to the regulating portion 73 is chamfered. Therefore, even if a force in the second direction is applied from the reel 5 to the second restricting piece 732 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. Sex is low. The tips of the 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 has 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 of the flat plate portion 711 of the stopper 7 in the longitudinal direction of the stopper 7 and are in surface contact with the flat plate portion 711. Thereby, the rotation of the fixing portion 71 in a plane perpendicular to the front-rear direction (in a 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 of the upper surface of the flat plate portion 711, and the second contact portion 832 is in surface contact with the left end 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 smaller. In the present 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 712 and the second leg 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 (upper left) orthogonal to the upper surface. The second reinforcing rib 812 protrudes to the upper left from the left surface of the outer peripheral portion of the holding frame 81. The third reinforcing rib 813 projects upward and to the right from the right side of the outer peripheral portion of the holding frame 81. The fourth reinforcing rib 814 protrudes to the lower left from the left surface of the outer peripheral portion of the holding frame 81. The fifth reinforcing rib 815 protrudes to the lower right from the right side of the outer peripheral portion of the holding frame 81. The sixth and seventh reinforcing ribs 816 and 817 project from the lower surface of the outer peripheral portion of the holding frame 81 in a direction orthogonal to the lower surface (downward right).

  In particular, the holding frame 81 is provided with a fifth reinforcing rib 815 on the outer peripheral portion of the portion that comes into contact with the tip of the first leg 712. Further, the holding frame 81 is provided with a fourth reinforcing rib 814 on an outer peripheral portion of a portion in contact with the tip of the second leg piece 713. Accordingly, even if the stopper 7 is pulled upward and rightward by the reel 5 when the second regulating piece 732 receives the force in the second direction from the reel 5, the holding frame is held by the fourth reinforcing rib 814 and the fifth reinforcing rib 815. 81 is prevented.

  Since the hanging outlet 10 of the present embodiment is provided with the above-described protection structure, even when a force is applied from the reel 5 to the second restricting piece 732, it is possible to suppress the displacement of the fixing portion 71 and the like. it can. In addition, since the hanging outlet 10 of the present embodiment includes the above-described protection structure, the stopper 7 that receives the restoring force of the winding spring 62 can be more firmly held. Therefore, the resilient force of the winding spring 62 can be increased by increasing the plate thickness of the winding spring 62, and unintended lowering of the case can be further suppressed.

(3) Advantage As described above, the hanging outlet 10 according to the present embodiment includes the case 1, the outlet main body 2, the cable 3, the string 4, the reel 5, the winding spring 62, It has a stopper 7 and a release button 61. The case 1 is suspended by the suspension structure 9. The outlet main body 2 has a connection surface 23 in which an insertion hole 231 for inserting a plug blade is formed. Outlet body 2 is at least partially housed in case 1 so that connection surface 23 is exposed from opening 103 formed in case 1. The cable 3 electrically connects the power supply and the outlet main body 2. The cord body 4 is pulled out of the case 1 through a cord hole 102 formed in the case 1. The cord 4 is fixed to the suspension structure 9 outside the case 1. The reel 5 is configured to wind up the cord body 4. The reel 5 is accommodated in the case 1 so as to be rotatable in a direction in which the string 4 is wound up and in a direction in which the string 4 is fed out. The take-up spring 62 gives the reel 5 an elastic force that rotates in a direction in which the cord body 4 is taken up. The stopper 7 is stored in the case 1. The stopper 7 is displaced between a restriction position for restricting the rotation of the reel 5 and a release position for permitting the rotation of the reel 5. The release button 61 displaces the stopper 7 between the restriction position and the release position. The reel 5 has at least one recess 541 that is recessed in the radial direction on the periphery of the reel 5. The stopper 7 has a first restricting piece 731 and a second restricting piece 732 located in the recess 541 of the reel 5 at the restricting position. The first restricting piece 731 has a function of restricting the rotation of the reel 5 in the winding direction of the cord 4 at the restricting position. The second restricting piece 732 has a function of restricting the rotation of the reel 5 in the direction in which the cord 4 is fed out at the restricting position, and receives the rotational force of the reel 5 in the direction in which the cord 4 is fed out. Is displaced out 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 a force exceeding the restoring force of the winding spring 62 from the string body 4, the string body 4 The rotation of the reel 5 in the extending direction can be suppressed. That is, even when an object having a load exceeding the restoring force of the winding spring 62 is hung on the case 1, the rotation of the reel 5 in the direction in which the cord body 4 is extended can be suppressed by the stopper 7. That is, it is possible to provide the hanging outlet 10 that can suppress unintentional lowering of the case 1.

  Further, as in the present embodiment, the stopper 7 is preferably formed in an elongated shape. In this case, the stopper 7 further has a leaf spring-like elastic portion 72 and a fixing portion 71, and the fixing portion 71 is connected to the first restricting piece 731 and the second restricting piece 732 via the elastic portion 72. Is preferred. In this case, the case 1 has a holding portion 8 that holds the fixing portion 71 such that the first and second restricting pieces 731 and 732 of the stopper 7 are located in the recesses 541 of the reel 5 at the restricting position. Is preferred. According to this configuration, it is possible to provide the hanging-type outlet 10 that can suppress the unintentional descent of the case with a simple configuration. However, this configuration is not an essential configuration for the hanging outlet 10, and the stopper 7 may have another shape.

  Further, as in the present embodiment, the fixing portion 71 is made of a metal plate, a concave portion 714 is provided on a part of the outer peripheral edge of the fixing portion 71, and a projection 82 fitted into the concave portion 714 is formed on the inner surface of the case 1. Is preferably provided. According to this configuration, the displacement of the fixing portion 71 can be suppressed. However, this configuration is not essential to the hanging outlet 10, and the recess 714 and the protrusion 82 may be omitted as appropriate.

  Further, as in the present embodiment, the stopper 7 preferably further includes a contact piece 715 that protrudes from the edge of the concave portion 714 in the thickness direction of the fixing portion 71 and contacts the protrusion 82. According to this configuration, the force applied to the protrusion 82 from the edge of the recess 714 of the stopper 7 can be dispersed by the contact piece 715. However, this configuration is not an essential configuration for the hanging outlet 10, and the contact piece 715 may be omitted as appropriate.

  Further, as in the present embodiment, the fixing portion 71 includes a flat plate portion 711 and a first leg 712 and a first leg portion 712 protruding to one side in the thickness direction from both ends of the flat plate portion 711 in the longitudinal direction of the stopper 7. And a two-leg piece 713. In this case, the holding section 8 preferably has a holding frame 81 formed in a frame shape surrounding the fixing section 71. In this case, it is preferable that the holding frame 81 has a first contact portion 831 and a second contact portion 832 that are respectively opposed to both ends of the flat plate portion 711 in the longitudinal direction of the stopper 7. In this case, the interval between the first contact portion 831 and the second contact portion 832 is smaller than the interval between the first leg 712 and the second leg 713, and the first contact portion 831 and the second contact The portion 832 is preferably in surface contact with the flat plate portion 711. According to this configuration, the displacement of the fixing portion 71 can be suppressed. However, this configuration is not essential to the hanging outlet 10, and the fixing portion 71 and the holding portion 8 may have shapes different from the above-described shapes.

  Further, as in the present embodiment, it is preferable that at least one of the tip of the first leg 712 and the tip of the second leg 713 is chamfered. According to this configuration, a portion of the holding frame 81 that contacts the tips of the leg pieces 712 and 713 can be protected. However, this configuration is not an essential configuration for the hanging outlet 10, and the tips of the first leg 712 and the second leg 713 do not have to be chamfered.

  In addition, as in the present embodiment, the holding frame 81 is provided with reinforcing ribs (not shown) on at least one outer peripheral portion of a portion that contacts the tip of the first leg 712 and a portion that contacts the tip of the second leg 713. 814, 815) are preferably provided. According to this configuration, a portion of the holding frame 81 that contacts the tips of the leg pieces 712 and 713 can be protected. However, this configuration is not an essential configuration for the hanging outlet 10, and the reinforcing ribs (814, 815) may be omitted as appropriate.

  Further, as in the present embodiment, the cable 3 preferably has a curl portion 33, a first connection end 31, and a second connection end 32. The curl portion 33 is formed in a coil shape having a central axis Z1 as a straight line extending in the vertical direction. The first connection end 31 is connected to the upper end of the curl portion 33 and is electrically connected to a power supply. The second connection end 32 is connected to the lower end of the curl portion 33 and is electrically connected to the outlet main body 2. In this case, it is preferable that the cable 3 is introduced into the case 1 from an inlet 101 formed at the upper end of the case 1, and the second connection end 32 is connected to the outlet main body 2 in the case 1. According to this configuration, when the cable 3 expands and contracts at the curl portion 33, when the distance between the case 1 and the suspension structure 9 changes, loosening of the cable 3 and the like are prevented. However, this configuration is not an essential configuration for the hanging outlet 10, and the cable 3 may not have the curl portion 33.

(4) Modification The hanging type 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. Various changes can be made according to the design and the like within a range not departing from the technical idea according to the invention. Hereinafter, modified examples of the above embodiment will be listed.

  The hanging outlet 10 is not limited to an indoor outlet, and may be an outdoor outlet (Outlet) used outside a building. In addition, the hanging outlet 10 has, for example, not only the outlet, but also a switch for turning on / off the power supply, a human sensor, and a timer, a function of displaying a power supply state, a function of shutting off an overcurrent, and the like. May be. Further, the outlet main body 2 of the hanging outlet 10 does not have to have a lock mechanism for preventing the plug from coming off. In addition, the outlet main body 2 is not limited to the one with a grounding pole, and may be without a grounding pole. For example, it may be a 200 V AC or DC outlet. The outlet main 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 main 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 can be connected, such as a B-type or C-type outlet.

  The hanging structure 9 on which the hanging outlet 10 is hung is not limited to the ceiling of the building, and may be, for example, 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 cores (a pair of power supply wires and a ground wire). It may not be integrated by 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 facing direction of the pair of outlet bosses 115 may not be parallel to the left-right direction. Further, 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 7 Stopper 8 Holding part 9 Hanging structure 10 Hanging type outlet 11 Body 12 Cover 13 Internal space 21 Housing 23 Connection surface 31 First connection end 32 Second connection end 33 Curl part 61 Release button 62 Winding spring 71 Fixed part 72 Elastic part 82 Projection part 101 Inlet 102 String hole 103 Opening 541 Depression 711 Flat part 712 First leg 713 Second leg 714 Recess 715 Contact piece 731 First 1 regulation piece 732 2nd regulation piece 831 1st contact part 832 2nd contact part 814 Reinforcement rib (fourth reinforcement rib)
815 Reinforcement rib (fifth reinforcement rib)
Z1 center axis

Claims (8)

A case that can be suspended from the suspension structure,
An outlet body having at least a part thereof housed in the case, having a connection surface having an insertion hole for inserting a plug blade, and exposing the connection surface from an opening formed in the case; ,
A cable for electrically connecting a power supply and the outlet body,
A cord body that is pulled out of the case through a cord hole formed in the case and is fixed to the suspension structure outside the case,
A reel configured to wind up the cord body, and a reel that is rotatably stored in the case in a direction in which the cord body is wound and a direction in which the cord body is fed out;
A take-up spring that applies an elastic force to the reel in a direction that rotates in a direction to take up the cord body;
A stopper that is housed in the case and is displaced between a restriction position that restricts rotation of the reel and a release position that allows rotation of the reel;
A release button for displacing the stopper between the restriction position and the release position,
With
The reel has at least one recess recessed in the radial direction in a peripheral portion of the reel,
The stopper has a first regulating piece and a second regulating piece located in the recess of the reel at the regulating position,
The first restricting piece has a function of restricting rotation of the reel in a direction in which the cord is wound at the restricting position,
The second restricting piece has a function of restricting rotation of the reel in a direction in which the cord body is extended in the regulating position, and the second regulating piece receives a rotational force of the reel in a direction in which the cord body is extended. A hanging outlet having a function of displacing a piece out of the recess. 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 configured such that the first regulating piece and the second It is connected to the regulation piece,
The case has a holding portion for holding the fixing portion such that the first and second restricting pieces of the stopper are located in the recesses of the reel at the restricting position. The hanging outlet according to claim 1. The fixing part is made of a metal plate,
A recess is provided in a part of the outer peripheral edge of the fixing portion,
The suspension type outlet according to claim 2, wherein a projection portion fitted into the concave portion is provided on an inner surface of the case. The hanging outlet according to claim 3, wherein the stopper further includes a contact piece that protrudes from an edge of the concave portion in a thickness direction of the fixing portion and contacts the protruding portion. The fixing portion has a flat plate portion, and a first leg and a second leg protruding to one side in the thickness direction from both ends of the flat portion in the longitudinal direction of the stopper,
The holding portion has a holding frame formed in a frame shape surrounding the fixing portion,
The holding frame has a first contact portion and a second contact portion that are respectively opposed to both ends in the longitudinal direction of the stopper in the flat plate portion,
An interval between the first contact portion and the second contact portion is smaller than an interval between the first leg and the second leg,
The hanging outlet according to any one of claims 2 to 4, wherein the first contact portion and the second contact portion are in surface contact with the flat plate portion. The suspension type outlet according to claim 5, wherein at least one of a tip of the first leg and a tip of the second leg is chamfered. The holding frame is provided with reinforcing ribs on at least one outer peripheral portion of a portion that contacts the tip of the first leg and a portion that contacts the tip of the second leg. The hanging outlet according to claim 5. The cable is a curl 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 curl portion and electrically connected to the power supply, and A second connection end connected to the lower end of the curl portion and electrically connected to the outlet main body;
The cable is introduced into the case from an introduction port formed at an upper end of the case, and the second connection end is connected to the outlet main body in the case. The hanging outlet according to any one of claims 7 to 10.

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