JP2012074163A - Socket - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a socket which allows users to easily carry out assembly work without paying special attention to a door body during assembly.SOLUTION: A socket comprises: an upper body 4 and a lower body 2 having contact piece receiving parts 6 and 7 with which contact pieces are brought into contact conduction; a cover 3 mounted above the upper body 4 and provided with insertion holes 30 to 32 to which the contact pieces are inserted; and a door body 5 which is freely slidable between an opening position and a closing position of the insertion holes 30 and 31. The upper body 4 comprises: a rail 43 for sliding the door body 5 in the front/rear direction; a return spring 55 for biasing the door body 5 to the closing position; and a holding part 45 for holding the door body 5 on the upper body 4 in a freely slidable state.

Description

  The present invention relates to an outlet.

  2. Description of the Related Art Conventionally, there has been known an outlet provided with a contact receiver through which a contact such as a plug blade or a conductive pin contacts and conducts, for example, as disclosed in Patent Document 1. The conventional example described in Patent Document 1 is a substantially box-shaped body formed to have a size that can be attached to a standardized embedding box, and is formed to have a size larger than this body and is coupled to the body from the opening surface side. It is equipped with a container consisting of a cover. On the front surface of the cover, a plug outlet comprising a pair of contact insertion holes into which a plurality of types of contacts such as a plug blade and a conductive pin can be inserted, and a flat plug blade including a ground electrode for each are inserted 3 There is a three-pole outlet port composed of individual plug blade insertion ports. Further, a contact receiving part and a plug receiving part that are brought into contact with and connected to the contact inserting hole, the contact inserted into the plug blade inserting opening and the plug blade, respectively, are housed in the body. Furthermore, this conventional outlet includes a first door (door body) that closes the contact opening so as to be freely opened and closed, and a second door that freely closes the plug blade insertion opening constituting the three-pole outlet. A door (door body). In addition, this conventional outlet includes an inner frame that is disposed between the body and the cover and that supports the first and second door bodies so as to be slidable so as to be housed inside the cover.

JP 2005-032596 A

  However, in the above conventional example, until each door body is clamped between the middle frame and the cover at the time of assembly, each door body is simply placed on the middle frame, and means for holding each door body There is no. For this reason, at the time of assembling, it is necessary to perform the work while paying attention so that each door body does not fall off from the middle frame, and there is a problem that it is difficult to easily perform the assembling work.

  The present invention has been made in view of the above points, and an object of the present invention is to provide an outlet that can be easily assembled without requiring attention to a door body during assembly.

  The outlet according to the present invention includes a body having a contact receptacle through which the contact contacts and conducts, a cover attached to the front side of the body and provided with an insertion hole into which the contact is inserted, and the insertion hole is opened. A door that is slidable between a position to be closed and a position to be closed, the body having a rail that slides the door in a predetermined sliding direction, and a biasing of the door to the position to close the door And a holding portion for holding the door body in a slidable state.

  In this outlet, the holding portions are preferably provided on both sides of the rail along the sliding direction of the door body.

  In this outlet, the contact receivers are arranged on both sides of the body with the rail interposed therebetween, and the holding portion is inclined when the door body is tilted to one side with the rail as a fulcrum. It is preferable that a regulating rib is provided that engages with a portion on the opposite side to the side to regulate sliding of the door body.

  In this outlet, the holding portion has a recess into which an end portion of the door body is fitted, and the holding portion is inserted into the recess by pushing the door body into the holding portion. It is preferable that a positioning rib for positioning the door body in the sliding direction is provided.

  In this outlet, the holding portion has a concave portion into which an end portion of the door body is fitted, and when the door body is fitted into the concave portion by pushing the door body into the holding portion, It is preferable that the part which contacts the said door body is provided with the taper which inclines in the direction which guides the said door body to the said recessed part.

  In this outlet, the holding portion has a recess into which an end portion of the door body is fitted, and when the door body is fitted into the recess by pushing the door body into the holding portion, It is preferable that a portion that contacts the holding portion is provided with a taper that is inclined in a direction in which the holding portion is guided by the concave portion.

  In the present invention, the door can be held on the body by the holding portion, so that the door can be prevented from falling off the body. Therefore, the assembling work can be easily performed without requiring attention to the door body during assembling.

It is a disassembled perspective view which shows embodiment of the outlet socket which concerns on this invention. (A) is a perspective view of the state which combined the upper body and lower body same as the above, (b) is sectional drawing of (a). It is explanatory drawing of a door body same as the above, (a) is a top view, (b) is a bottom view, (c) is a side view. (A) is a partially exploded perspective view of a contact receiver and terminal plate of a voltage electrode, and (b) is a partially exploded perspective view of a contact receiver and terminal plate of a ground electrode. It is explanatory drawing of the method of hold | maintaining a door body same as the above to an upper body, (a) is a top view, (b) is sectional drawing. It is explanatory drawing of the obstruction | occlusion state of each window hole by a door body same as the above, (a) is a top view of a cover, (b) is a top view which shows a normal state, (c) is a plug of the first insertion hole. It is a top view which shows the state which inserted the contact, (d) is a top view which shows the state which inserted the contact of the plug in the 2nd insertion hole. It is explanatory drawing of a holding part same as the above, (a) is a perspective view of the state which removed the cover, (b) is an enlarged view of the area | region enclosed with the broken line of (a). It is explanatory drawing of the method of preventing only insertion of the one side contactor same as the above, (a) is the figure which looked at the door body and a part of upper body from the rear side, (b) is a partially expanded view of (a) (C) is sectional drawing which looked at a part of door body and the upper body from the rear side. It is explanatory drawing of a cover same as the above, (a) is a bottom view, (b) is a bottom view at the time of providing a rib in a cover. It is a figure which shows a completed product same as the above, (a) is a front view, (b) is a side view. It is a front view which shows the state which attached the same as the attachment frame and the decorative plate. It is a disassembled perspective view which shows the case where a pillar terminal same as the above is provided.

  Hereinafter, an embodiment of an outlet according to the present invention will be described with reference to the drawings. In the following description, the direction perpendicular to the vertical and horizontal directions is defined as the front and rear direction with reference to the vertical and horizontal directions in FIG. Further, “upper side” in the following description means “front side” in the claims.

  As shown in FIG. 1, the present embodiment has a pair of voltage electrode contact holders 6 and a ground electrode contact holder receiver 7 in which contact (not shown) of a plug (not shown) contacts and conducts. An upper body 4 and a lower body 2 are provided. Further, in the present embodiment, the cover 3 which is attached to the upper side of the upper body 2 and provided with the insertion holes 30 to 32 into which the contacts are inserted, and the positions where the insertion holes 30 and 31 are opened and closed. The door body 5 is slidable between the two. The upper body 2, the cover 3, and the lower body 4 are coupled to each other to form the housing 1.

  The lower body 2 is made of, for example, a thermosetting resin such as urea resin, and a T-shaped partition wall 20 is formed therein as shown in FIG. A total of three storage chambers 21 are formed inside the lower body 2 by being separated by the partition wall 20, two on the front side and one on the rear side. In the two storage chambers 21 on the front side, the voltage electrode terminal plate 8 to which the contact holder 6 for the voltage electrode is caulked and fixed is stored. The rear storage chamber 21 stores a ground electrode terminal plate 9 to which a contact holder 7 for the ground electrode is caulked and fixed. As shown in FIG. 2B, a pair of circular electric wire insertion holes 21 </ b> A for introducing electric wires (not shown) into the lower body 2 are provided on the lower surface of each storage chamber 21. Yes. A pair of engaging protrusions 22 (only the right side surface in the figure) that are fitted into engaging recesses 44A of the upper body 4 described later are integrally formed on the left and right side surfaces of the lower body 2 so as to protrude outward. Has been.

  The cover 3 is made of, for example, a thermosetting resin such as urea resin, and as shown in FIG. 1, the first insertion hole 30 and the second insertion hole 31 into which the contact of the voltage electrode of the plug is inserted on the upper surface. Are provided in pairs. Further, a third insertion hole 32 into which a contact of a ground electrode of the plug is inserted is provided on the upper surface of the cover 3. Each of the first insertion holes 30 is a so-called rectangular hole in which a flat contact (plug blade) can be inserted and a circular hole in which a round bar contact can be inserted. It is a universal outlet. Each of the second insertion hole 31 and the third insertion hole 32 is a circular hole into which a round bar-like contact can be inserted. Accordingly, the first insertion hole 30 and the third insertion hole 32 are three-pole outlets to which a three-pole plug is connected, and the second insertion hole 31 is connected to a two-pole plug. It is a 2-pole outlet. That is, a plurality of types of plugs can be connected to this embodiment.

  The upper body 4 is made of, for example, a thermosetting resin such as urea resin, and is formed in a rectangular parallelepiped shape having an open bottom surface as shown in FIG. In a position facing the first insertion hole 30 and the second insertion hole 31 of the upper body 4, a first pair of contact holders 6 of voltage electrodes is exposed to the outside through the insertion holes 30 and 31. A pair of window holes 40 and a pair of second window holes 41 are provided. Further, a third window hole 42 is provided at a position facing the third insertion hole 32 of the upper body 4 so that the contact holder 7 of the ground electrode can be exposed to the outside through the third insertion hole 32. Yes. Each of the window holes 40 to 42 is provided with substantially the same size as each of the corresponding insertion holes 30 to 32.

  As shown in FIG. 1, a rail 43 that protrudes upward is provided along the front-rear direction at a portion sandwiched between the first window hole 40 and the second window hole 41 on the front side of the upper surface of the upper body 4. Yes. The rail 43 is fitted into a guide groove 52A of the door body 5 described later, so that the door body 5 is held slidable in the front-rear direction. In addition, a first storage recess 44 that is recessed downward is provided in an intermediate portion of the rail 43. By storing the lower portion of the return spring 55 in the first storage recess 44, the front end of the return spring 55 is supported by the rear end of the front rail 43 and the rear end of the return spring 55. Is supported by the front end portion of the rear rail 43 (see FIG. 2A).

  As shown in FIG. 1, holding the door body 5 in a slidable state on both the left and right sides across the first window hole 40 and the second window hole 41 and the rail 43 on the upper surface of the upper body 4. A portion 45 is provided. The holding portion 45 includes a rectangular main piece 45A that has a longitudinal direction as a longitudinal direction and protrudes upward, and a side piece 45B that protrudes inward from the upper end of the main piece 45A. And the site | part enclosed by 45 A of main pieces, the side piece 45B, and the upper body 4 becomes the recessed part 45C into which the edge part in the left-right direction of the door body 5 fits.

  Positioning ribs 45D projecting upward are integrally formed on the front portion of the upper surface of each side piece 45B (see FIG. 2A). Further, a taper 45E that is inclined downward toward the inner side is provided at a position behind the positioning rib 45D on the upper surface of each side piece 45B (see FIG. 7A). In addition, restriction ribs 45F projecting downward are integrally formed at both front and rear end portions of the lower surface of each side piece 45B (see FIGS. 2B and 7B).

  A pair of locking pieces 46 (only the front surface in the drawing) are provided on both front and rear side surfaces of the upper body 4. For this reason, this embodiment can be attached to an attachment frame by hooking each locking piece 46 on an attachment frame (not shown). In addition, on both the left and right side surfaces of the upper body 4, rectangular engagement pieces 47 (only the right side in the drawing) that protrude downward are integrally formed. Each engagement piece 47 is provided with a pair of rectangular engagement holes 47A. By fitting the engagement protrusions 22 of the lower body 2 into these engagement holes 47A, The lower body 2 is coupled to each other. In addition, the state of the completed product of this embodiment is shown to Fig.9 (a), (b). Moreover, the state which attached this embodiment to the attachment frame which mounted | wore the decorative plate 10 in the front is shown in FIG. In this figure, the switch 11 is attached to the attachment frame together with the present embodiment.

  As shown in FIG. 3A, the door body 5 includes a pair of wing pieces 50, 51 disposed so as to face the insertion holes 30, 31 corresponding to the voltage electrodes, and the wing pieces 50, 51. And an intermediate portion 52 that connects the blade pieces 50 and 51. On the upper surface of the front portion of each blade piece 50, 51, inclined surfaces 50A, 51A that are inclined with respect to the contact insertion direction are formed. The inclined surfaces 50 </ b> A and 51 </ b> A receive the pressing force of the contact so that the door body 5 slides rearward and opens the first window hole 40 of the upper body 4. A circular first through hole 53 into which a contact of a voltage pole of a two-pole plug is inserted is provided in a rear part of the blade pieces 50 and 51. An inclined surface 53A that is inclined with respect to the insertion direction of the contact is formed on the upper surface of the front portion of each first through hole 53, and each inclined surface 53A receives the pressing force of the contact. The door body 5 slides forward to open the second window hole 41 of the upper body 4. In addition, a circular second through hole 54 into which a contact of a ground pole of a three-pole plug is inserted is provided at the rear portion of the intermediate portion 52. An inclined surface 54A that is inclined with respect to the insertion direction of the contact is formed on the upper surface of the rear portion of the second through hole 54, and the inclined surface 54A receives the pressing force of the contact. The door body 5 slides rearward and opens the third window hole 42 of the upper body 4.

  As shown in FIG. 3B, a guide groove 52A into which the rail 43 of the upper body 4 is fitted is provided on the rear surface of the intermediate portion 52 of the door body 5 along the front-rear direction. By fitting the rail 43 into the guide groove 52A, the door body 5 can swing about the rail 43 as an axis (fulcrum). A second storage recess 52C having a width dimension larger than the width dimension of the guide groove 52A is provided at an intermediate portion of the guide groove 52A, and the upper portion of the return spring 55 is located in the second storage recess 52B. Stored. When the door body 5 slides rearward, the front end of the return spring 55 is pressed by the front inner wall of the second storage recess 52B, and the return spring 55 contracts rearward. The door body 5 is urged so as to move the body 5 forward. Further, when the door body 5 slides forward, the rear end of the return spring 55 is pressed by the rear inner wall of the second storage recess 52B, and the return spring 55 contracts forward. Urges the door body 5 to move the door body 5 backward. Therefore, when the door body 5 slides in any of the front and rear directions, the door body 5 returns to the original state by the urging force of the return spring 55.

  As shown in FIG. 3A, step portions 50 </ b> B and 51 </ b> B that protrude upward are integrally formed at front portions on the left and right sides of the upper surface of the door body 5. Further, as shown in FIGS. 3 (b) and 3 (c), tapers 50C and 51C that are inclined upward toward the outer side are provided at the front portions on the left and right sides of the lower surface of the door body 5, respectively.

  As shown in FIG. 4A, the voltage electrode contact 6 is connected to the first contact 60 and the voltage electrode of the 3-pole plug. And a second contact receiver 61 that is in contact with and in contact with the contact. The first contact holder 60 is made of a metal material having a spring property (for example, brass), and a pair of first spring pieces 60A arranged to face each other, and perpendicular to each first spring piece 60A. And the second spring piece 60B arranged in a single body. Each first spring piece 60A elastically sandwiches a round bar-like contact, and each second spring piece 61A has a flat contact between each first spring piece 60A ( The blade is clamped elastically. The lower ends of the spring pieces 60A and 60B are integrally connected by a connecting piece 60C, and the connecting piece 60C is provided with a square attachment hole 60D for attaching the terminal plate 8 of the voltage electrode. . The second contact receiver 61 is made of a metal material having a spring property (for example, brass), and a pair of spring pieces 61A arranged to face each other, and a connecting piece 61B that connects the lower ends of the spring pieces 61A. Are formed integrally. The connecting piece 61B is also provided with a square mounting hole 61C for mounting the voltage electrode terminal plate 8.

  The terminal plate 8 of the voltage electrode is made of a conductive material, and as shown in FIG. 4 (a), a pair of strip-shaped base pieces 80 and 81 arranged in parallel at a predetermined interval, and each base piece. And a connecting piece 82 for connecting the centers of 80 and 81. A contact piece 80A that protrudes downward extends from the left and right ends of the front side of the base piece 80, and an extension piece 81A that protrudes downward extends from the left and right end parts of the rear side of the base piece 81, respectively. Has been. A square caulking hole 82 </ b> A is provided at the center of the connecting piece 82. The caulking hole 82A and the mounting hole 60D of the first contactor receiver 60 are overlapped, and the caulking rod 6A is inserted into each of the caulking holes 6A, thereby caulking the first contactor receiver 60 and the terminal plate 8 to each other. be able to. Further, a sub-base piece 83 projecting rearward is extended from the central portion of the base piece 81 in the left-right direction. A square caulking hole 83A is provided at the rear end portion of the sub-base piece 83. The caulking hole 83A and the mounting hole 61C of the second contactor receiver 61 are overlapped with each other, and the caulking rod 6A is inserted into each of the caulking holes 61C to caulk the second contactor receiver 61 and the terminal plate 8 to each other. be able to.

  The contact holder 7 of the ground electrode is made of a metal material having a spring property (for example, brass), and as shown in FIG. 4B, a pair of spring pieces 70 arranged to face each other, and each spring piece 70. The connecting piece 71 that connects the lower end portions of the two is integrally formed. Each spring piece 70 elastically holds a round bar-like contact of a ground pole of a three-pole plug. From both left and right ends of the connecting piece 71, L-shaped attachment pieces 72 that protrude outward are provided integrally. Each of the mounting pieces 72 is provided with a square mounting hole 72A (only the right side in the drawing) for mounting the terminal plate 9 of the ground electrode.

  As shown in FIG. 4 (b), the terminal plate 9 of the ground electrode is made of a conductive material, and a pair of strip-shaped base pieces 90 and 91 arranged in parallel with a certain distance therebetween, and each base piece. 90, 91 and a connecting piece 92 that connects one end portions in the left-right direction. A contact piece 90A that protrudes downward extends from one end in the left-right direction on the rear side of the base piece 90, and an extension piece 91A that protrudes downward from one end in the left-right direction on the front side of the base piece 91. It is extended. A square caulking hole 92 </ b> A is provided at the center of the connecting piece 92. The caulking hole 92A and the mounting hole 72A of the contact holder 7 for the grounding electrode are overlapped, and the caulking rod 7A is inserted into each of the caulking holes 72A, thereby caulking the grounding contact receiver 7 and the terminal plate 9 to each other. be able to.

  A notch 84 is provided on each of the left and right sides of the connecting piece 82 of each terminal plate 8, and a notch 93 is provided next to the connecting piece 92 of each terminal plate 9 in the left-right direction. (See FIGS. 4A and 4B). These notches 84 and 93 are disposed by inserting a lock spring 23 formed by bending a metal plate having elasticity into a C shape. The locking spring 23 prevents the electric wire introduced into the storage chamber 21 from the electric wire insertion hole 21A of the lower body 2 and faces the contact pieces 80A and 90A across the space in which the electric wire is inserted. A central piece 23A is provided. The locking spring 23 includes a locking piece 23B that is inclined obliquely upward from the lower end of the central piece 23A. The locking piece 23B prevents the electric wire from coming off by the tip portion of the locking piece 23B coming into contact with the electric wire inserted from the electric wire insertion hole 21A. Further, when the electric wire is prevented from being detached by the locking piece 23B, the electric wire elastically contacts the contact pieces 80A and 90A by the restoring force of the locking piece 23B, thereby bringing the electric wire and the contact pieces 80A and 90A into contact with each other. It can be made conductive.

  As shown in FIG. 1, each storage chamber 21 of the lower body 2 is provided with a pair of release levers 24 for releasing the retaining of the electric wire by the lock spring 23. The release lever 24 is made of, for example, a synthetic resin molded product, and includes a rectangular flat plate-shaped operation portion 24A and a pair of leg portions 24B extending from the left and right ends of the operation portion 24A along the front-rear direction. As shown in FIG. 1, a pair of support bases 25 that support the release lever 24 are provided on the walls facing the outside of the storage chambers 21 so as to expose the operation portion 24A to the outside. Yes. Each release lever 24 is stored in each storage chamber 21 such that the contact pieces 80A and 90A and the lock spring 23 are disposed between the pair of leg portions 24B. Each storage chamber 21 is provided with a bearing base (not shown) having a semicircular arc-shaped sliding surface, and the end of each leg portion 24B of the release lever 24 is mounted on the bearing base. By being placed, the release lever is rotatable with the end portion as a fulcrum.

  Thus, in order to remove the electric wires connected to the contact receivers 6 and 7, the operation part 24A of the release lever 24 may be operated so as to be pushed up with a finger. By operating in this way, the release lever 24 rotates, and the leg portion 24B presses the locking piece 23B downward, thereby displacing the locking piece 23B in contact with the electric wire in a direction away from the electric wire. The wire can be removed.

  Hereinafter, a method for holding the door 5 on the upper body 4 will be described with reference to the drawings. First, as shown in FIG. 5 (a), either one of the left and right end portions (left side in the drawing) of the door body 5 is brought into contact with the upper surface of the side piece 45B of one holding portion 45 and pushed from above. One end of the body 5 is fitted into the recess 45 </ b> C of one holding part 45. Thereafter, the other end portion of the door body 5 in the left-right direction is brought into contact with the upper surface of the side piece 45B of the other holding portion 45, and the other end portion of the door body 5 is pushed in from the upper side so that the other holding portion 45 has a recess 45C. Fit into. In this manner, the door body 5 can be held in the upper body 4 in a slidable state by fitting the door body 5 into the recess 45 </ b> C of each holding portion 45.

  Here, when the door body 5 is fitted into the recess 45C, the door body 5 is pushed in from above while pressing the corners of the door body 5 against the positioning rib 45D. The positioning rib 45D positions the door body 5 in the sliding direction. By pressing the corner of the door body 5 against the positioning rib 45, the first housing recess 44 of the upper body 4 and the door body 5 are positioned. The positional relationship with the second storage recess 52B can be adjusted. If the positioning rib 45D is not provided, the door body 5 is held by the holding portion because the door body 5 is caught by the return spring 55 unless the first storage recess 44 and the second storage recess 52B are accurately overlapped. 45 cannot be held. On the other hand, in this embodiment, the first storage recess 44 and the second storage recess 52B can be accurately overlapped by pressing the corner of the door body 5 against the positioning rib 45D. It takes no time to align the body 5.

  Further, when the door body 5 is fitted into the recess 45C, as shown in FIGS. 5A and 5B, the door body 5 is pressed against the taper 45E of the holding portion 45 against the taper 45C of the door body 5. Push in from above. The taper 45E of the holding portion 45 is inclined in a direction in which the door body 5 is guided to the concave portion 45C at a portion in contact with the door body 5. Therefore, when the door body 5 is pushed into the recess 45C and fitted, the end of the door body 5 slides on the taper 45E and is guided to the recess 45C. Therefore, the door body 5 is easily fitted into the recess 45C. be able to. Further, the tapers 50C and 51C of the door body 5 are inclined in a direction in which the door body 5 itself is guided to the concave portion 45C at a portion in contact with the holding portion 45. Therefore, when the door body 5 is pushed into the recess 45C and fitted, the side piece 45B of the holding portion 45 slides on the tapers 50C and 51C so that the end of the door body 5 is guided to the recess 45C. The door body 5 can be easily fitted into the recess 45C.

  In addition, in this embodiment, taper 45E, 50C, 51C is provided in any of the holding | maintenance part 45 and the door body 5, However, By providing in at least any one among the holding | maintenance part 45 and the door body 5, said effect. Can be played. Of course, it goes without saying that it is more effective to provide both the holding portion 45 and the door body 5.

  Next, the closed state of the insertion holes 30 to 32 by the door body 5 will be described with reference to the drawings. When the plug contacts are not inserted into the insertion holes 30 to 32, as shown in FIG. 6A, the first window holes 40 and the second windows into which the voltage electrode contacts are inserted. All of the window holes 41 are closed by the door body 5. That is, since the contact holders 6 and 7 which are charging parts are closed by the door body 5, it is possible to prevent an electric shock caused by touching the charging part inside the housing 1 when this embodiment is not used.

  When inserting the contacts of the three-pole plugs into the first insertion holes 30 and the third insertion holes 32, as shown in FIG. 6B, the inclined surfaces 50A, 51A, 54A of the door body 5 are used. Is pressed by each contact, and the door body 5 slides backward. Then, each first window hole 40 and third window hole 42 are opened, and each first contact receiver 60 and ground contact 7 are exposed to the outside. Each first contact receiver 60 and the contact receiver 7 of the ground electrode can be brought into contact conduction. At this time, since each second window hole 41 remains closed by the door body 5, it is possible to prevent the second contact hole 61 from being touched.

  When inserting a contact of a two-pole plug into each second insertion hole 31, as shown in FIG. 6C, each inclined surface 53 </ b> A of the door body 5 is pressed against each contact, The door body 5 slides forward. Then, since each 2nd window hole 41 is open | released and each 2nd contactor receptacle 61 faces outside, the contactor of a 2 pole plug can be contact-connected to each 2nd contactor receptacle 61. . At this time, since each first window hole 40 remains closed by the door body 5, it is possible to prevent the first contact hole receiver 60 from being touched. When the plug contacts are removed from the insertion holes 30 to 32, the door body 5 is restored by the biasing force of the return spring 55, and the first window holes 40 and the first window holes 40 into which the voltage electrode contacts are inserted. All the two window holes 41 are closed by the door body 5.

  Further, in the present embodiment, when a contact or the like is inserted into only one of the first insertion holes 30 or only one of the second insertion holes 31, the door body 5 slides. There is a means to regulate this. As shown in FIGS. 7 (a) and 7 (b), the means for regulating the sliding of the door body 5 includes a pair of regulating ribs 45F provided in each holding portion 45, the wing pieces 50 of the door body 5, 51 includes stepped portions 50B and 51B (only the stepped portion 51B in the figure). As shown in FIGS. 8A to 8C, when trying to insert a contactor or the like only into one of the first insertion holes 30 or only one of the second insertion holes 31, When pressed by a contact or the like, the door 5 swings about the rail 43 as an axis, and tilts to one side (left side in the figure) of the left and right. At this time, step portions 50 </ b> B and 51 </ b> B (51 </ b> B in the drawing) provided at the end of the door 5 opposite to the one side are positioned between the pair of regulating ribs 45 </ b> F of the holding portion 45. Therefore, even when the door body 5 is slid along the front-rear direction, the stepped portions 50B and 51B are caught by the restriction rib 45F, and thus the sliding of the door body 5 is restricted. Therefore, it is possible to prevent the contact of the voltage electrode of the plug from being inserted only on one side.

  As described above, in the present embodiment, the door body 5 can be held on the upper body 4 by the pair of holding portions 45, so that the door body 5 can be prevented from falling off the upper body 4. Therefore, the assembly work can be easily performed without requiring attention to the door body 5 at the time of assembly.

  By the way, when the holding part 45 is not provided in the upper body 4 as in the prior art, a pair of holding ribs 33 is provided on the lower surface of the cover 3 as shown in FIG. Then, the door body 5 is restricted from moving in directions other than the sliding direction by sandwiching the left and right sides of the door body 5 by the holding ribs 33. However, in the case where the pair of holding ribs 33 are provided on the cover 3, there is no means for holding the door body 5 at the time of assembly, and it is necessary to perform an assembly operation so that the door body 5 does not fall off at the time of assembly. Further, in the case where the pair of holding ribs 33 are provided on the cover 3, there is a possibility that sink marks may occur when the cover 3 is molded as viewed from the upper surface of the cover 3. On the other hand, in this embodiment, since the holding part 45 is provided in the upper body 4, the door body 5 does not fall off during assembly as described above, and further, as shown in FIG. In addition, since it is not necessary to provide the pair of holding ribs 33 on the lower surface of the cover 3, there is an advantage that there is no sink when viewed from the upper surface of the cover 3.

  In this embodiment, each terminal plate 8, 9 is provided with a locking spring 23, and the electric wire is locked with the locking spring 23. Instead of providing each terminal plate 8, 9, FIG. As shown, a structure may be provided in which a pillar terminal 100A for fastening an electric wire with a screw is provided. In this case, a main body 100 having pillar terminals 100A is used instead of the lower body 2, and a pair of voltage electrode contact holders 6 and a ground electrode contact holder 7 are accommodated in the main body 100. That's fine. Further, instead of the upper body 4, the middle frame 101 formed in a flat plate shape may be used and the middle frame 101 may be placed so as to close the upper opening surface of the main body 100. The configuration of the middle frame 101 is basically the same as the configuration of the upper body 4.

2 Lower body (body)
3 Cover 30 First Insertion Hole 31 Second Insertion Hole 32 Third Insertion Hole 4 Upper Body (Body)
43 Rail 45 Holding part 5 Door body 55 Return spring 6 Voltage pole contact holder 7 Ground pole contact holder

Claims (6)

  A body having a contact receiving contact with which the contact makes contact, a cover attached to the front side of the body and provided with an insertion hole into which the contact is inserted, a position where the insertion hole is opened, and a position where the insertion hole is closed A door body that is slidable between the rail, a rail that slides the door body in a predetermined sliding direction, a return spring that biases the door body toward the closing position, and An outlet comprising a holding portion for holding the door in a slidable state on the body.   The outlet according to claim 1, wherein the holding portions are provided on both sides of the rail along the sliding direction of the door body.   The contact holders are arranged on both sides of the rail in the body, and the holding portion has a tilted side of the door body when the door body is tilted to one side with the rail as a fulcrum. The outlet according to claim 1 or 2, further comprising a restriction rib that is engaged with an opposite side portion and restricts sliding of the door body.   The holding portion has a concave portion into which an end portion of the door body is fitted, and the door is inserted into the concave portion by pushing the door body into the holding portion. The outlet according to any one of claims 1 to 3, further comprising a positioning rib for positioning the body in the sliding direction.   The holding portion has a recess into which an end portion of the door body is fitted, and when the door body is fitted into the recess by pushing the door body into the holding portion, The outlet according to any one of claims 1 to 4, wherein the contacting portion is provided with a taper that inclines in a direction to guide the door body to the recess.   The holding portion has a concave portion into which an end portion of the door body is fitted, and when the door body is fitted into the concave portion by pushing the door body into the holding portion, the holding portion of the door body The outlet according to any one of claims 1 to 5, wherein the contacting portion is provided with a taper that inclines in a direction of being guided by the recess.

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