JP2010225456A - Receptacle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a receptacle with superior mechanical strength at sites other than a recess of a cover without damaging design properties, with generation of tracking restrained. <P>SOLUTION: The receptacle is provided with a receptacle body 20 with blade-rest springs 21c, 21c for pinching two round pins (armatures) of a bayonet plug (not shown) on one face side, and a cover 41 with a recess 41b at a center part in plane view and having armature insertion holes 10c set in penetration at a bottom plate 10 constituting the bottom 41d of the recess 41b for the round pins of the bayonet plug inserted into the recess 41b to be insertion-fitted, and attached embedded on the one face side of the receptacle body 20. The bottom plate 10 is formed of thermosetting resin, and a cover body 40 constituting sites of the cover 41 other than the bottom 41d of the recess 41b is formed of thermoplastic resin. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an outlet.

  Conventionally, as shown in FIG. 10, an outlet provided with two blade receiving springs 21c 'and 21c' for holding round pins (not shown) as two armatures of an insertion plug (not shown). Each of the round pins of the plug 20 is inserted into the main body 20 ′ and a recess 41b ′ at the center in plan view and inserted into the bottom 41d ′ of the recess 41b ′ inside the recess 41b ′. And a cover 41 ′ that is covered on one side of the outlet body 20 ′ provided with the double-blade receiving springs 21c ′ and 21c ′ has been proposed (Patent Literature). 1).

  In addition, the outlet having the configuration shown in FIG. 10 holds the outlet body 20 ′ on one surface side in the thickness direction and has a through hole (not shown) in which the outlet body 20 ′ penetrates the construction material (not shown). Is disposed between the mounting frame 30 ′ for attaching the outlet body 20 ′ to the construction material in a form located on the inside, and the bottom part 41d ′ of the recess 41b ′ of the outlet body 20 ′ and the cover 41 ′, When the plug is not connected to the outlet main body 20 ', the two door bodies 81' and 81 'are provided for closing the two armature insertion holes 10c' and 10c 'penetrating the bottom 41d'. Door block 80 '.

  Here, the cover 41 ′ is continuous with a rectangular plate-shaped plate portion 40a ′ having a first opening portion 40b ′ having a circular shape in plan view at the center and a peripheral portion of the first opening portion 40b ′ of the plate portion 40a ′. A cover body 40 ′ having a bottomed cylindrical portion 40c ′ formed integrally and covered on the other surface side in the thickness direction of the mounting frame 30 ′, and disposed so as to surround the outer periphery of the cover body 40 ′. And a decorative plate 42 '. Here, the bottomed cylindrical portion 40c 'corresponds to the recess 41b' of the cover 41 ', and the bottom wall 41d' of the bottomed cylindrical portion 41b 'corresponds to the bottom 41d' of the recess 41b '.

  Here, in the bottom wall 40d ′ of the bottomed cylindrical portion 40c ′, the two armature insertion holes 10c ′ through which the round pins of the plugs are inserted and the cover 40 ′ are attached to the outlet body 20 ′. A screw insertion hole 10 b ′ through which an assembly screw 2 ′ is inserted is inserted therethrough. Further, the cover 41 ′ is configured such that the assembly screw 2 ′ inserted into the screw insertion hole 10 b ′ penetrating the bottom wall 40 d ′ of the bottomed cylindrical portion 40 c ′ of the cover body 40 ′ is used as the cover 41 ′ of the outlet body 20 ′. It is attached to the outlet body 20 ′ by being screwed into a nut 3 ′ fitted in a through hole (not shown) penetrating in the thickness direction of the outlet body 20 ′ from the opposite side.

  The decorative plate 42 ′ is provided with a locking step 42 a ′ over the entire inner periphery, and when the cover main body 40 ′ is attached to the outlet main body 20 ′, the outer peripheral portion of the cover main body 40 ′. The lower end is locked to the locking step 42a ′. Thus, the decorative plate 42 ′ is attached to the outlet body 20 ′ so as to be sandwiched between the lower end of the outer peripheral portion of the cover body 40 ′ and the other surface side of the mounting frame 30 ′.

  Here, the cover body 40 ′ is formed of a thermosetting resin having good electrical insulation in order to suppress the occurrence of tracking in a state where the plug is electrically connected to the outlet body 20 ′. Yes.

JP 2003-249298 A

  However, in the outlet configured as shown in FIG. 10, when the plug is inserted into the inside of the recess 41b ′ of the cover 41 ′, a part of the plug is inserted into a portion other than the recess 41b ′ of the cover 41 ′. The cover main body 40 ′ constituting the cover 41 ′ is formed of a thermosetting resin having a lower mechanical strength than the thermoplastic resin, so that the cover main body 40 ′ is made of the thermoplastic resin. Compared to the case where the cover body 40 'is formed, the cover main body 40' is more likely to be damaged by the contact of the plug.

  Further, the cover main body 40 ′ constituting a part of the cover 41 ′ other than the recess 41 b ′ which is easily touched by the user is formed of a thermosetting resin having poor processability compared to the thermoplastic resin. For this reason, the design of the cover body 40 'is impaired.

  On the other hand, if the cover main body 40 ′ is entirely formed of a thermoplastic resin, the electrical insulation of the bottom 41d ′ of the recess 41b ′ of the cover 41 ′ with which the plug is in contact may be reduced, and tracking may easily occur. was there.

  The present invention has been made in view of the above reasons, and its purpose is to prevent the occurrence of tracking, while the mechanical strength of the portion other than the recess of the cover is high, and the designability is not impaired. Is to provide.

  According to a first aspect of the present invention, there is provided an outlet body provided with a plurality of blade receiving springs for sandwiching a plurality of armatures of an insertion plug, a recess at a central portion in plan view, and a recess at a bottom of the recess. A plurality of armature insertion holes through which each of the armatures of the insertion plugs inserted inside are inserted, and a cover that is covered on one side of the outlet body where the blade receiving spring is provided. The bottom of the recess in the cover is formed of a thermosetting resin, and the portion other than the bottom of the recess in the cover is formed of a thermoplastic resin.

  According to the present invention, since the bottom of the recess in the cover where the plurality of armature insertion holes are formed is formed of the thermosetting resin having high electrical insulation, the occurrence of tracking can be suppressed. Further, when the plug is inserted into the inside of the cover recess, a part of the cover that is highly likely to come into contact with the plug is formed of a thermoplastic resin other than the recess. Compared with the case where a portion other than the recess is formed of a thermosetting resin, the mechanical strength of the portion other than the recess of the cover, which is a portion where a part of the plug is easily contacted, can be increased. . In addition, since the portion other than the bottom of the recess in the cover that is easy to touch the user's eyes is formed of a thermoplastic resin that can give various textures to the surface, the portion is made of a thermosetting resin. Compared with the case where it is formed, the design of the cover can be improved.

  According to a second aspect of the invention, in the first aspect of the invention, the bottom portion of the recess in the cover is formed of a bottom plate that is formed of a thermosetting resin and is detachable from the cover. Features.

  According to this invention, since the bottom plate constituting the bottom portion of the recess in the cover and the portion other than the bottom portion of the cover can be separately manufactured, the manufacture of the cover is facilitated.

  According to a third aspect of the present invention, in the first or second aspect of the present invention, the cover is configured to approach the bottom side of the recess as it approaches the recess over the entire periphery of the recess. An inclined surface is formed.

  According to this invention, the inclined surface that is inclined so as to approach the bottom side of the recess as it approaches the recess is formed over the entire peripheral portion of the recess in the cover. When inserting the plug into the inside of the recess of the cover, the plug is guided by the inclined surface to the recess in the cover, and the plug is smoothly inserted into the inside of the recess of the cover. Since it can be inserted, usability is improved.

  According to the present invention, since the bottom of the recess in which the armature insertion hole is formed is formed of the thermosetting resin having high electrical insulation, the occurrence of tracking can be suppressed. In addition, since the portion other than the recess in the cover that is likely to come into contact with a part of the plug is made of the thermoplastic resin, the portion other than the recess in the cover is formed of the thermosetting resin. Compared with the case where it is, the damage of the cover by a part of insertion plug contacting can be suppressed. In addition, since the portion other than the bottom of the recess in the cover that is easy to touch the user's eyes is formed of a thermoplastic resin that has better processability than the thermosetting resin, the portion is a thermosetting resin. The design of the cover can be improved as compared with the case where the cover is formed.

The outlet socket of embodiment is shown, (a) is a top view, (b) is A-A 'sectional drawing in (a). It is a disassembled perspective view of an outlet socket same as the above. It is a one part perspective view of an outlet socket same as the above. It is a one part perspective view of an outlet socket same as the above. It is a one part perspective view of an outlet socket same as the above. It is a one part perspective view of an outlet socket same as the above. It is a one part perspective view of an outlet socket same as the above. It is a schematic perspective view of the insertion plug connected to an outlet same as the above. It is a figure which shows the state by which the plug of the same outlet was connected. It is a disassembled perspective view of the outlet socket of a prior art example.

  The outlet according to the embodiment will be described below with reference to FIGS.

  The outlet according to the embodiment is an embedded outlet, and is attached to the construction material in such a manner that a part thereof is inserted into an embedding hole (not shown) penetrating through the construction material (not shown). The outlet according to the embodiment includes an outlet body 20 provided with two blade receiving springs 21c and 21c that sandwich round pins 100b and 100b that are two armatures of the plug 100 (see FIG. 8), and a plan view. Two armature insertion holes through which the two round pins 100b and 100b of the insertion plug 100 are respectively inserted into the bottom 41d of the recess 41b and are inserted into the inside of the recess 41b. (Attachment holes for armatures) 10 c and 10 c are provided, and a cover 41 is provided on one side of the outlet main body 20 where the double-blade receiving springs 21 c and 21 c are provided.

  In addition, the outlet of the embodiment holds the outlet body 20 on one surface side in the thickness direction and attaches the outlet body 20 to the construction material such that the outlet body 20 is positioned inside the embedded hole of the construction material. The mounting frame 30 is disposed between the outlet body 20 and the bottom 41d of the recess 41b of the cover 41, and the two plugs provided on the bottom 41d when the plug 100 is not connected to the outlet body 20 are provided. And a door block 80 having two door bodies 81 and 81 that respectively close the armature insertion holes 10c.

  The outlet body 20 is formed of a thermosetting resin, and, as shown in FIG. 3, the first direction of the base 20 a at both ends in the first direction of the base 20 a on one surface side of the base 20 a Has two side walls 20b, 20b projecting along a direction orthogonal to each other and spaced apart in the first direction of the base 20a between the two side walls 20b, 20b of the base 20a in the first direction. The two partition walls 20c and 20c are projected along the second direction of the base 20a. Here, a first storage portion 20d is formed between the side wall 20b and the partition wall 20c on both sides of the base 20a in the first direction. A second storage portion 20e is formed between the two partition walls 20c and 20c. A terminal fitting 21 having a blade receiving spring 21a into which the round pin 100b of the insertion plug 100 is inserted is stored in the first storage portion 20d in a form fixed to the bottom portion 20f of the first storage portion 20d. The second storage portion 20e includes two grounding terminal receiving portions 22a and 22a that are electrically connected to the grounding terminal 100c (see FIG. 8) provided on the side surface of the plug 100. 22 is stored in a fixed form on the bottom 20g of the second storage portion 20e. A through hole (not shown) that penetrates from the bottom 20g to the other surface side of the base 20a is provided in the bottom 20g of the second storage part 20e, and the nut 3 is inserted into the through hole through the base 20a. Are inserted from the other surface side. In addition, on both ends of the base 20a in the first direction, installation bases 20h on which mounting brackets 23 for mounting the outlet body 20 to the mounting frame 30 are installed project in the first direction. Yes.

  The terminal fitting 21 is made of metal and has a rectangular plate-like first main piece 21a and the first main piece 21a from both ends of the first main piece 21a to one side in the thickness direction of the first main piece 21a. It has two first projecting pieces 21b and 21b that project in an orthogonal manner. The first projecting piece 21b is continuous with the first main piece 21a at one end and extends in one direction parallel to the surface of the first main piece 21a at the other end. The other end portions of the two first projecting pieces 21b and 21b constitute a blade receiving spring 21c. Further, the other end portions of the two first projecting pieces 21b and 21b are formed such that the interval between the first projecting pieces 21b and 21b is narrower than the outer diameter of the round pin 100b. When the round pin 100b of the plug 100 connected to the outlet body 20 is inserted into the blade receiving spring 21c, the round pin 100b is generated by the urging force generated between the other end portions of the two first projecting pieces 21b and 21b. Is pinched. In addition, a first screw hole (through which a first fixing screw 24 for fixing the terminal fitting 21 to the bottom portion 20f of the first storage portion 20d of the base 20a is inserted into the first main piece 21a. The terminal fitting 21 has the first fixing screw 24 inserted through the first screw insertion hole and the bottom fitting 20d of the first storage portion 20d. The first fixing screw 24 is screwed into the first screw hole to be fixed to the bottom portion 20f of the first storage portion 20d. Further, as shown in FIG. 3, a portion (not shown) where an electric wire (not shown) coating (not shown) is peeled between the main piece 21 a of the terminal fitting 21 and the first fixing screw 24. ) Is electrically connected to the terminal fitting 21.

  The grounding metal fitting 22 is made of metal, and has a second main piece 22b having an elongated plate shape, and a second main piece 22b extending from both longitudinal ends of the second main piece 22b to one side in the thickness direction of the second main piece 22b. There are two second protruding pieces 22c protruding so as to intersect the main piece 22b, and the second main piece 22b has a nut inserted from the other surface side of the base 20a at a substantially central portion in the longitudinal direction. A nut insertion hole (not shown) through which the tip of 3 is inserted is provided. Here, the diameter of the rear end portion of the nut 3 opposite to the front end portion is increased, and the rear end portion of the nut 3 contacts the peripheral portion of the nut insertion hole on the other surface side of the base 20a. By contacting, the movement of the nut 3 to the one surface side of the base 20a is regulated. Here, between the rear end portion of the nut 3 and the nut insertion hole, a portion (not shown) from which the coating (not shown) of the grounding wire (not shown) is peeled is sandwiched. The grounding wire is electrically connected to the grounding metal fitting 22. Further, an elongated grounding terminal receiving portion 22a that is in contact with the grounding terminal 100c of the plug 100 and is electrically connected to the grounding terminal 100c is provided at the tip of the second projecting piece 22c. Yes. In addition, on the second main piece 22b, grounding metal fittings 22 are fixed to the bottom 20g of the second storage portion 20e of the base 20a on both sides in the longitudinal direction of the second main piece 22b with respect to the nut insertion hole. A second screw insertion hole (not shown) through which the second fixing screw 25 for inserting the second fixing screw 25 is inserted, and the grounding metal fitting 22 is connected to the second fixing screw 25 by the second fixing screw 25. The second storage part is inserted by screwing the second fixing screw 25 into a second screw hole (not shown) that is inserted into the screw insertion hole and formed in the bottom 20g of the second storage part 20e. It is fixed to the bottom 20g of 20e.

  The mounting bracket 23 is made of metal and has a third main piece 23a having an elongated plate shape and a third main piece 23 extending from both longitudinal ends of the third main piece 23a to one side in the thickness direction of the third main piece 23a. Two third projecting pieces 23b, 23b projecting in a form substantially orthogonal to the piece 23a are provided, and the third main piece 23a is penetrated by a later-described fourth projecting piece 30c included in the mounting frame 30. An engagement piece 23c that engages with the engagement hole 30d is provided so as to protrude to one side of the third main piece 23a in the short direction. A third fixing screw 26 for fixing the mounting bracket 23 to the installation bases 20h provided on both ends in the longitudinal direction of the base 20a is inserted through a substantially central portion in the longitudinal direction of the third main piece 23a. A third screw insertion hole (not shown) is provided therethrough, and the mounting bracket 23 is placed on the installation base 20h, and the third fixing screw 26 is inserted into the third screw insertion hole. The third fixing screw 26 is screwed into a third screw hole (not shown) drilled in the installation table 20h and fixed to the installation table 20h. Here, the engaging piece 23c protrudes to the protruding side of the installation base 20h. That is, the mounting bracket 23 installed on each of the two installation bases 20h is installed on the installation base 20h in such a manner that the respective engagement pieces 23c protrude in both sides in the longitudinal direction of the base 20a.

  As shown in FIG. 4, the mounting frame 30 is formed in a rectangular plate shape with metal and has an opening window 30b having a circular opening window 30b in the center in plan view, and an opening window of the mounting frame body 30a. There are provided two fourth projecting pieces 30c provided so as to project from one peripheral side of the mounting frame body 30a in the thickness direction of the mounting frame main body 30a so as to face each other across the center of the opening window 30b from the periphery of 30b. Here, the fourth projecting piece 30c has one end continuous to the peripheral portion of the opening window 30b of the mounting frame main body 30a, and the engagement piece 23c provided on the third main piece 23a of the mounting bracket 23 engages. A base piece 30e through which a joint hole 30d is provided, a bent piece 30f formed by bending the other end of the base piece 30e into a shape orthogonal to the base piece 30e, and a base piece 30e in the bent piece 30f The one side which is continuous with the arm 30g extends from the two sides perpendicular to each other in the direction in which the base piece 30e protrudes, and includes two arm pieces 30g for locking the mounting frame 30 to the outlet body 20. The outlet body 20 is held on one surface side in the thickness direction of the mounting frame 30 in such a manner that the engaging piece 23c of the mounting bracket 23 is engaged with the engaging hole 30d of the fourth protruding piece 30c. Here, as for the attachment frame 30, the two blade receiving springs 21c and 21c of the outlet main body 20 are located in the projection area | region of the opening window 30b. The attachment frame 30 is attached to the construction material in such a manner that the outlet body 20 is positioned inside the embedded hole penetrating the construction material. Here, each of the four corners of the rectangular plate-shaped attachment frame main body 30a has a fourth screw insertion hole 30h through which an attachment screw (not shown) for attaching the attachment frame main body 30a to the construction material is inserted. It is penetrating. Here, the attachment frame main body 30a is inserted in the construction material while inserting the attachment screw into each of the fourth screw insertion holes 30h in a state where the attachment frame main body 30a is in contact with the construction surface of the construction material. The mounting screw is screwed into a fourth screw hole (not shown) to be fixed to the construction material. Further, in each of the substantially central portions of the four sides of the mounting frame main body 30a, the mounting frame 30 is narrower than the circular large-diameter portion 30i and the large-diameter portion 30i, and has an arcuate small diameter continuous to the large-diameter portion 30i at one end. For example, a box screw insertion hole 30k into which a mounting screw (not shown) is inserted when the mounting frame 30 is attached to a synthetic resin embedded box (not shown) is provided. .

  As shown in FIG. 5, the cover 41 is formed so that the area of the shape in plan view is larger than the area of the outer shape in plan view of the mounting frame main body 30 a of the mounting frame 30, and the first portion is formed in the center in plan view. A plate portion 40a having an opening portion 40b, and a bottomed cylindrical portion 40c formed continuously and integrally with a peripheral portion of the first opening portion 40b of the plate portion 40a and having a second opening portion 40e formed on the bottom wall 40d. And two armature insertion holes through which the two round pins 100b, 100b of the insertion plug 100 formed in a plate shape and inserted into the inside of the bottomed cylindrical portion 40c of the cover body 40 are inserted. 10c, 10c is formed through the bottom plate 10 disposed so as to cover the second opening 40e of the bottomed cylindrical portion 40c. Here, the bottomed cylindrical portion 40c and the bottom plate 10 constitute a recess 41b of the cover 41, and the bottom plate 10 constitutes a bottom 41d of the recess 41b.

  Further, on the side wall 40b of the bottomed cylindrical portion 40c, an elongated grounding ground provided at the tip of the second protruding piece 22c of the grounding metal fitting 22 in the direction along the central axis direction of the bottomed cylindrical portion 40c. Two terminal receiving portion insertion grooves 40f and 40f into which the terminal receiving portion 22a is inserted are formed. On the inner side of the bottomed cylindrical portion 40c, a bottom plate 10 to be described later has a bottomed surface at two portions facing each other in a direction orthogonal to the direction in which the two groove portions 40f and 40f are arranged across the central axis of the bottomed cylindrical portion 40c. In order to restrict the bottom wall 40d of the cylindrical portion 40c from rotating in the inner peripheral direction of the bottomed cylindrical portion 40c, the plate portion 40a projects from the bottom wall 40d side in the direction along the central axis and protrudes toward the central axis. A rotation restricting rib 40g formed in an extended shape on the side is provided.

  Further, as shown in FIG. 6, the bottom plate 10 is formed in a shape in which the outer peripheral shape in plan view has two sides that are cut out along two straight lines parallel to each other across the center in a virtual circle. The second opening 40e is provided so as to cover the bottom wall 40d of the bottomed cylindrical portion 40c. A fifth screw insertion hole 10b for inserting the assembly screw 2 is provided in the center of the bottom plate 10, and the recess 41b of the cover 41 is formed on both sides of the fifth screw insertion hole 10b. Two armature insertion holes 10c and 10c are inserted through the circular pin 100b of the insertion plug 100 to be inserted. Two grounding terminal receiving portions 40f and 40f are respectively provided at positions corresponding to the two terminal receiving portion insertion grooves 40f and 40f formed on the side wall 40b of the bottomed cylindrical portion 40c of the cover 40 on the outer peripheral portion of the bottom plate 10. Two inserted rectangular cutouts 10d, 10d are formed. Further, the bottom plate 10 has a bottomed cylindrical portion in such a manner that two end faces 10e, 10e corresponding to the two sides of the bottom plate 10 are in contact with the rotation restricting ribs 40g provided on the bottomed cylindrical portion 40c of the cover body 40. The bottom wall 40d of 40c restricts rotation in the inner peripheral direction of the bottomed cylindrical portion 40c. Accordingly, during use, the bottom plate 10 is rotated in the inner circumferential direction of the bottomed cylindrical portion 40c by the bottom wall 40d of the bottomed cylindrical portion 40c of the cover 40, and the position of the two armature insertion holes 10c of the bottom plate 10 and the outlet It is possible to prevent the positions of the two blade receiving springs 21c and 21c provided on the main body 20 from being shifted in the insertion direction of the round pins 100b and 100b. Further, when the bottom plate 10 is inserted from the first opening 40b of the cover main body 40 and disposed on the bottom 40d of the bottomed cylindrical portion 40c, the bottom plate 10 is formed to have substantially the same size as the inner peripheral shape of the bottomed cylindrical portion 40c. As a result, it moves so as to be in sliding contact with the rotation restricting rib 40g formed inside the bottomed cylindrical portion 40c, so that it is provided in the armature insertion hole 10c penetrating the bottom plate 10 and the outlet main body 20. Since it is not necessary to adjust the position of the blade receiving spring 21c thus made to coincide with the insertion direction of the round pin 100b of the insertion plug 100, assembly work is facilitated.

  Here, the cover main body 40 is covered with the mounting frame main body 30 a in such a manner that the bottomed cylindrical portion 40 c is inserted into the inside of the opening window 30 b of the mounting frame 30. Thus, the cover 41 including the cover main body 40 and the bottom plate 10 is covered with the blade receiving springs 21c and 21c on the one side of the outlet main body 20 through the mounting frame 30.

  As shown in FIG. 7, the door block 80 is formed in a rectangular box shape with a thermosetting resin, and a sixth screw insertion hole having a circular shape in a plan view through which the assembly screw 2 is inserted in a substantially central portion of the bottom wall 80d. 80e (refer FIG.1 (b)) and planar view circle by which the two round pins 100b and 100b of the insertion plug 100 are inserted in the both sides of the 6th screw penetration hole 80e in the longitudinal direction of the bottom wall 80d A door block body 80a having two shaped window holes 80b formed therein, and a long and narrow plate shape made of a synthetic resin so that the width dimension is larger than the inner diameters of the window holes 80b and 80b and the longitudinal direction. And a door body 81 provided so as to be rotatable between a position where the two window holes 80b, 80b are closed and a position where the window holes 80b are not closed. Here, the door body 81 does not block the window holes 80b and 80b by the return spring 82 (see FIG. 1B) disposed between the bottom wall 80d of the door block body 80a and the door body 81. It is urged in a direction to rotate from the position to a position that closes the window holes 80b, 80b. Moreover, the rib 81b which has the inclined surface 81a which inclined so that the amount of protrusions may become large as it goes to the other end side from the one end side of the width direction in the both ends of the door body 81 is formed. And the inclined surface 81a of the rib 81b formed in the both ends of the longitudinal direction of the door body 81 is set so that each may mutually cross | intersect. Here, when the round pin 100b of the insertion plug 100 is inserted into the armature insertion holes 10c, 10c of the bottom plate 10 in a state where the door body 81 is in a position closing the window holes 80b, 80b, the tip of the round pin 100b is Further, when the round pin 100b is inserted into the outlet body 20 side in contact with the inclined surface 10a, the round pin 100b moves to one end side in the width direction while being in sliding contact with the inclined surface 81a, and the door body 81 is moved to the window hole 80b. , 80b are rotated to a position where they are not blocked. The two round pins 100b are sandwiched between the two blade receiving springs 21c and 21c of the outlet body 20, and at the same time, the door body 81 moves to a position where the window holes 80b and 80b are not blocked. On the other hand, when the round pins 100 b and 100 b are removed from the blade receiving spring 21 c of the outlet body 20, the door body 81 is rotated to a position where the window hole 80 b is closed by the urging force of the return spring 82.

  Further, as shown in FIG. 8, the plug 100 to be inserted into the outlet according to the embodiment includes a columnar plug plug body 100 a having an outer diameter smaller than the inner diameter of the bottomed cylindrical portion 40 c of the cover 40. The two round pins 100b and 100b projecting from the insertion plug main body 100a, and the two round pins 100b orthogonal to the central axis with the central axis of the insertion plug 100 on the side surface of the insertion plug main body 100a. , 100b, and grounding terminals 100c, 100c provided at positions facing each other in a direction orthogonal to the arrangement direction of 100b. Here, the two round pins 100b, 100b of the plug 100 are inserted into the two blade receiving springs 21c, 21c provided on the outlet body 20, and the two grounding terminals 100c, 100c are respectively connected to the outlet body 20. It contacts two grounding terminal receiving portions 22a, 22a of the grounding metal fitting 22 provided.

  By the way, in the outlet of embodiment, the baseplate 10 which comprises the bottom part 41d of the recessed part 41b of the cover 41 is formed with a thermosetting resin, and the cover main body 40 which comprises parts other than the recessed part 41b in the cover 41 is the heat | fever. It is made of a plastic resin.

  Accordingly, the bottom plate 10 constituting the bottom 41d of the recess 41b in which the armature insertion holes 10c, 10c for which electrical insulation is required is formed of a thermosetting resin having high electrical insulation, thereby enabling tracking. Generation | occurrence | production can be suppressed, and when inserting the plug 100 inside the recess 41b of the cover 41, there is a high possibility that a part of the plug 100 will come into contact with the cover 41 except for the recess 41b. Since the cover body 40 is formed of a thermoplastic resin having higher mechanical strength than the thermosetting resin, a part of the plug 100 is in contact with the outlet in which the cover body 40 is formed of the thermosetting resin. It is possible to suppress damage to the cover main body 40 due to the operation. Further, since the cover main body 40 that is easy to touch the user's eyes is formed of a thermoplastic resin, compared to the case where the cover main body 40 is formed of a thermosetting resin, other than the recess 41b of the cover 41. Many types of covers 41 having different textures (for example, glossiness) can be realized, and the design of the cover 41 can be improved.

  Further, in the outlet of the embodiment, as described above, the cover 41 is continuous with the peripheral portion of the plate portion 40a having the first opening portion 40b at the center portion in plan view and the first opening portion 40b of the plate portion 40a. The bottomed cylindrical portion 40c is formed by penetrating a cover main body 40 including a bottomed cylindrical portion 40c formed integrally and having a bottom opening 40e formed in the bottom wall 40d, and armature insertion holes 10c and 10c. The bottom plate 10 is disposed so as to cover the second opening 40e penetrating the bottom wall 40d, and the recess 41b of the cover 41 is constituted by the bottomed cylindrical portion 40c and the bottom plate 10, and the bottom plate. 10 constitutes a bottom 41d of the recess 41b in the cover 41. That is, the bottom 41 d of the recess 41 b in the cover 41 is formed of the bottom plate 10 that is made of a thermosetting resin and is detachable from the cover 41.

  Accordingly, since the bottom plate 10 is detachable from the cover 41, the bottom plate 10 and the cover main body 40 can be manufactured separately. That is, the cover main body 40 is formed of a thermoplastic resin and the bottom plate 10 is formed of a thermosetting resin, but the bottom plate 10 constituting the bottom 41d of the recess 41b in the cover 41 and the bottom of the cover 41 Since the cover main body 40, which is a part other than 41d, can be manufactured separately, there is an advantage that the manufacture of the cover 41 is facilitated.

  By the way, in the outlet of the embodiment, an inclined surface 40h is formed on the peripheral portion of the recess 41b of the cover 41 so as to approach the bottom 41d of the recess 41b as it approaches the recess 41b.

  Therefore, as shown in FIG. 9, when the plug 100 is inserted into the recess 41b of the cover 41, the plug 100 is guided to the recess 41b of the cover 41 by the inclined surface 40h, so that the plug is inserted. Since the plug 100 can be smoothly inserted into the recess 41b of the cover 41, the usability is improved.

  In the outlet of the embodiment, the example in which the cover 41 is configured by the cover main body 40 and the bottom plate 10 has been described. However, the present invention is not limited to this, and the cover 41 is provided on the cover main body 40 made of thermoplastic resin. It may be a double molded product comprising a corresponding part and a part corresponding to the bottom plate 10 made of a thermosetting resin. In this case, the occurrence of tracking can be suppressed, and a part of the plug 100 is in contact with the outlet of the cover 41 corresponding to the cover body 40 made of a thermosetting resin. Breakage of the cover 41 due to can be suppressed. Moreover, the design property of the cover 41 can be improved because the site | part corresponding to the cover main body 40 which is easy to touch a user's eyes is formed with the thermoplastic resin.

  In the embodiment, the outlet attached to the construction material has been described. However, the present invention is not limited to this, and for example, a peripheral wall (not shown) of a housing (not shown) of an electric device (not shown). ) May be attached to the inner side of an embedding hole (not shown) penetrating in the hole. Further, the structure of the cover 41 of the embodiment is not limited to the embedded outlet described in the embodiment, and may be applied to a table tap type outlet, for example.

DESCRIPTION OF SYMBOLS 10 Bottom plate 10c Armature insertion hole 20 Outlet main body 21c Blade receiving spring 30b Open window 40 Cover main body 40a Plate part 40b 1st opening part 40c Bottomed cylindrical part 40d Bottom wall 40e 2nd opening part 40h Inclined surface 41 Cover 41b Concave Place 41d Bottom 100 Plug 100b Round pin (armature)

Claims (3)

  An outlet body provided with a plurality of blade receiving springs for sandwiching a plurality of armatures of the plug, and a difference in which a recess is provided at the center in a plan view and inserted into the inside of the recess at the bottom of the recess A plurality of armature insertion holes through which the respective armatures of the plug-in plugs are individually inserted, and a cover that is covered on one side of the outlet body provided with the blade receiving springs. An outlet characterized in that the bottom portion is formed of a thermosetting resin, and the portion other than the bottom portion of the recess in the cover is formed of a thermoplastic resin.   The outlet according to claim 1, wherein the bottom portion of the recess in the cover is formed of a bottom plate that is formed of a thermosetting resin and is detachable from the cover. 2. The cover according to claim 1, wherein the cover is formed with an inclined surface that is inclined so as to approach the bottom side of the recess as it approaches the recess over the entire periphery of the recess. Item 3. The outlet according to Item 2.

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