JP4976865B2 - Outlet - Google Patents

Description

  The present invention relates to an outlet having a ground terminal to which a ground wire is connected.

  Conventionally, an outlet provided with a ground terminal to which a ground wire is connected has been provided (see, for example, Patent Document 1).

  In order to reduce the size of this type of outlet, the present inventor connects the grounding plug blade insertion port 10c to which the plug blade (not shown) of the ground electrode is connected to the ground terminal 2 as shown in FIGS. Is provided in the ground terminal storage recess 12 in which is stored. Hereinafter, the top, bottom, left, and right will be described in detail with reference to FIG. 17, and the front side of FIG. That is, the vertical direction in FIG. 19 is referred to as the front-rear direction, the upper left-lower right direction in FIG. 19 is referred to as the left-right direction, and the upper right-lower left direction in FIG.

  As shown in FIG. 19, this outlet is provided with two sets of a body 1a in which a storage recess 11 for storing a charging part is provided on the front surface and a set of three plug blade insertion ports 10 arranged vertically on the front surface. A housing 1 is provided that includes a cover 1b that is coupled to the front side of the body 1a and covers the housing recess 11. In addition, a ground terminal hole 12b is formed in the lower end portion of the cover 1b in the front-rear direction so that the rear opening is closed by the body 1a to form the ground terminal storage recess 12. Furthermore, a ground terminal 2 is provided that is housed in the ground terminal housing recess 12 and connected to a ground wire. The housing 1 is attached with a door body 3 that opens and closes the ground terminal storage recess 12.

  The body 1a and the cover 1b are each made of a thermosetting resin such as urea resin, for example, and are joined by an assembly frame 4 that also serves as an attachment frame for attachment to a construction surface (not shown). The assembly frame 4 is formed in a size and shape in accordance with the mounting frame defined in JIS C 8375, and has an exposed hole 41 formed in a three-module size. On the left and right sides of the exposure hole 41, there are two coupling pieces 42 that are formed in a U shape by penetrating engagement holes 42a on the left and right, respectively, and projecting backward two by two. In addition, a contact protrusion 43 projects rearward from the front end of the inner periphery of the engagement hole 42a. Two coupling protrusions 13a and 13b are provided on the left and right side surfaces of the body 1a and the cover 1b, respectively, so as to protrude vertically, and a recess 13c is provided on the front surface of the coupling protrusion 13b of the cover 1b. The coupling protrusions 13a and 13b are inserted into the engagement holes 42a of the assembly frame 4, the contact protrusion 43 of the assembly frame 4 is inserted into the recess 13c of the coupling protrusion 13b of the cover 1b, and the coupling protrusion 13a of the body 1a. The rear surface is locked to the coupling piece 42 of the assembly frame 4, so that the body 1 a and the cover 1 b are coupled so that the front surface of the cover 1 b is exposed from the exposure hole 41. Further, as already described, the assembly frame 4 also serves as an attachment frame for attachment to the construction surface, so that attachment pieces 44 for attachment to the construction surface are provided at the upper and lower ends of the assembly frame 4 respectively. Yes. Each mounting piece 44 has an oblong box hole 44a that is elongated to the left and right through which a box screw for mounting to a well-known embedded box (not shown) embedded in the construction surface is inserted, L-shaped scissors, which are located on the left and right sides of the box hole 44a, and to which well-known scissors (not shown) are attached to sandwich the panel material with the mounting piece when the construction surface is made of a panel material A hole 44b, a plate hole 44c through which a screw for attaching a plate frame (not shown) that is positioned on the outer side of the box hole 44a and covers the assembly frame 4 when viewed from the front is inserted; The direct attachment holes 44d, which are respectively positioned on the left and right sides, and through which direct attachment screws screwed into the wall material constituting the construction surface are inserted, are penetrated in the front-rear direction.

  Each plug blade insertion port 10 has a shape corresponding to a plug (not shown) with a grounding electrode for a rating of 125 V and 15 A defined in JIS C 8303, and is vertically connected to the plug blade on the voltage side electrode. A long voltage side plug blade insertion port 10a and a plug blade (not shown) having a grounding side pole which is provided on the left side of the voltage side plug blade insertion port 10a and is vertically longer than the voltage side plug blade insertion port 10a. A plug blade (not shown) of a ground electrode provided below the position sandwiched between the ground side plug blade insertion port 10b, the voltage side plug blade insertion port 10a, and the ground side plug blade insertion port 10b is inserted. It comprises a grounding plug blade insertion port 10c. The grounding plug blade insertion port 10c of the lower plug blade insertion port 10 is provided with an inverted U-shaped grounding plug blade insertion recess provided at the upper end of the grounding terminal hole 12b inside the grounding terminal receiving recess 12 and opened forward and backward. 10 d and the ground terminal 2.

  The storage recess 11 is provided with a partition projection 11d that partitions the storage recess 11 into three storage chambers 11a to 11c arranged side by side. The right side storage chamber 11a stores a voltage side conductive plate 5a serving as a charging unit for the voltage side electrode, and the left side storage chamber 11b stores a ground side conductive plate 5b serving as a charging unit for the ground side electrode. The storage chamber 11c stores a ground conductive plate 5c serving as a charging portion for the ground electrode. Each of the conductive plates 5a to 5c is formed by punching and bending a metal plate.

  As shown in FIG. 20, the voltage side conductive plate 5 a and the ground side conductive plate 5 b are provided two in a row in the vertical direction, the rear U-shaped terminal portion 51, and the upper and lower sides of the terminal portion 51, respectively. There are two blade receiving portions 52 that elastically sandwich the plug blade inserted from the insertion ports 10a, 10b from both sides in the thickness direction (left-right direction).

Further, as shown in FIG. 21, two ground conductive plates 5c are provided side by side, and are grounded blade holders that elastically sandwich the ground electrode plug blades inserted from the ground plug blade insertion ports 10c from the left and right sides, respectively. Provided on the left and right ends of the terminal connecting portion 55, the blade receiving connecting portion 54 for connecting the grounding blade receiving portion 53, the terminal connecting portion 55 projecting forward from the lower end of the blade receiving connecting portion 54, and the terminal connecting portion 55. and a two terminal portions 51 of the Luo Lesotho respectively rearward U-shape. The connecting portion 54 has a bottom portion 54a that is long in the vertical direction with the thickness direction in the front-rear direction, a reinforcing rib 54b that protrudes forward from the left and right ends of the bottom portion 54a to improve mechanical strength, and a reinforcing rib 54b. And an anti-floating portion 54c that projects forward from the vicinity of the upper end of the cover 1a and abuts against the rear surface of the cover 1b. The suspending portion 54 c prevents the ground conductive plate 5 c from being displaced forward with respect to the housing 1 even when the ground blade receiving portion 53 is pulled forward when the plug blade is pulled out.

  Moreover, the terminal part 51 of each conductive plate 5a-5c is a site | part by which the electric wire (not shown) introduce | transduced from the electric wire insertion hole (not shown) penetrated by the body 1a back and forth is contact-conductive, A locking spring 61 which is arranged inside the terminal portion 51 and locks the electric wire between the inner surface of the terminal portion 51 and a release button 62 for releasing the locking of the locking spring 61 together with a quick-connect terminal. Constitute. Specifically, the lock spring 61 is made of, for example, a metal leaf spring, and as shown in FIG. 20, a main body 61a that is in contact with the inner surface of the terminal 51 and the inner surface in the left-right direction, A U-shape is formed outwardly in the left-right direction from the rear end (lower end in FIG. 20) of the portion 61a, is inclined outwardly in the left-right direction toward the front, and is retained (locked) by biting into the electric wire. And a locking portion 61b. In FIG. 20, only four lock springs 61 corresponding to the voltage-side conductive plate 5a and the ground-side conductive plate 5b among the lock springs 61 provided for the six terminal portions 51 one by one are shown. Is illustrated. Further, as shown in FIG. 22, the release button 62 has an operation display portion 62a located outside the housing 1 and two leg portions 62b that protrude inward from the operation display portion 62a. . On the left and right sides of the housing recess 11 of the body 1a, there are cut holes that communicate with the inside and outside of the housing recess 11 and that are open to the front of the body 1a and communicate with the inside and outside of the housing recess 11 with the rear surface of the cover 1b. A notch 11e is provided, and the release button 62 is supported so as to be displaceable back and forth with respect to the housing 1 by inserting each leg portion 62b into the notch 11e. The left and right side surfaces of the body 1a are curved surfaces that bulge the center part in the front-rear direction outward, and the release button 62 is moved by the operation display part 62a sliding on the curved surface when displaced in the front-rear direction. Rotate slightly so as to increase the projecting dimension of the leg portion 62b into the housing recess 11 with the forward displacement.

  Further, each leg portion 62 b of the release button 62 faces the lock spring 61 in the storage recess 11. When the operation display portion 62a is operated so as to be displaced forward when the electric wire is locked to the lock spring 61, the lock springs 61 are respectively provided on the different sides of the electric wire between the leg portions 62b. The lock is released by pressing and elastically deforming.

Further, the release button 62 is urged rearward with respect to the housing 1 (that is, opposite to the direction operated when unlocking) by a display spring (not shown) made of a leaf spring housed in the housing recess 11. ing. In the terminal portion 51, an electric wire insertion hole 51a is provided in the front and rear direction of the electric wire insertion hole of the body 1a, and a locking projection 51b is protruded forward on the outer side in the left-right direction with respect to the electric wire insertion hole 51a. Yes. Here, the release button 62 has a locked portion 62c to be freely engaged disengageably in engagement projection 51b is located in front of the position sandwiched between the leg portion 62b in the housing 1.

  The release button 62 is positioned at the front end of the movable range in a state where the electric wire is not locked to the lock spring 61, and the locked portion 62c is locked to the lock protrusion 51b to Moving to is prohibited. In this state, when the electric wire inserted from the electric wire insertion hole passes through the electric wire insertion hole 51a and presses the locked portion 62c forward, and the locking of the locking protrusion 51b to the locked portion 62 is released. The release button 62 is displaced rearward at once by the spring force of the display spring. By seeing this, the user can clearly know the completion of the connection of the electric wire.

  Further, the door body 3 is made of, for example, a synthetic resin molded product, and as shown in FIG. 23, a cover portion 31 that covers the ground terminal storage recess 12 and two coupling portions 32 that are provided side by side and are respectively coupled to the housing 1. In addition, a connecting portion that is interposed between each coupling portion 32 and the cover portion 31 and is formed thinner than other portions, and supports the cover portion 31 so as to be rotatable with respect to the coupling portion 32 when viewed from the left-right direction. 33. Engagement claws 32 a project from the front portions of the coupling portions 32 in the left-right direction and in the direction approaching the other coupling portion 32. In the cover 1b, two coupling holes 14 are arranged side by side on the upper side of the grounding terminal hole 12b in the left and right direction, and the door 3 has the coupling portion 32 inserted into the coupling hole 14 so that each engaging claw 32a is inserted. The door body 3 is coupled to the housing 1 by engaging with the rear surface of the cover 1b. In addition, two insertion cutouts 31 a are formed at the lower end of the cover portion 31. The insertion cutouts 31 a form a hole between the lower end of the ground terminal storage recess 12 and a hole through which the ground wire EC connected to the ground terminal 2 is inserted. Is provided.

  Further, at both left and right end portions of the cover portion 31, locking projections 34 project from the rear when the door body 3 is closed, and the door body 3 is closed at each locking projection 34. A hooked claw 34a protrudes downward in the above state. In a state where the door body 3 is closed, the latching claw 34a is detachably locked to the rear surface of the cover 1b, and thus the rotation of the cover portion 31 in the direction of opening the door body 3 is prohibited. Engagement / disengagement of the latching claw 34a is performed by applying a force to the cover portion 31 to elastically deform the latching convex portion 34.

Further, at the left and right end portions of the cover portion 31, restricted convex portions 35 project from the locked convex portions 34, respectively. On the inner surface of the ground terminal hole 12b, there is provided a restriction recess 12d into which the restricted protrusion 35 is engaged with the door 3 closed. When the cover part 31 of the door body 3 receives a downward force in the closed position, the restricted convex part 35 comes into contact with the lower inner surface of the restriction recessed part 12d, so that the cover part 31 is displaced downward with respect to the housing 1. Is prohibited, and it is difficult for stress to be applied to the locked convex portion 34, and damage to the locked convex portion 34 is suppressed.

In addition, a guide projection 36 projects rearward at the center in the left-right direction at the upper end of the cover 31. Since the guide protrusion 36 is provided, the plug blade of the ground electrode is guided by the guide protrusion 36 when the plug is connected. Therefore, the plug blade of the ground electrode is recessed in the ground terminal receiving recess compared with the case where the guide protrusion 36 is not provided. 12 and the ground terminal 2 are not easily caught. Further, the guide protrusion 36 improves the mechanical strength of the door body 3 and suppresses breakage.

  Next, the ground terminal 2 will be described. The ground terminal 2 is screwed into the ground terminal plate 21 having screw holes 21a extending therethrough, the terminal screw 22 screwed into the screw hole 21a of the ground terminal plate 21, and the screw hole 21a of the ground terminal plate 21. A screw insertion hole 23a through which the screwed portion 22a of the terminal screw 22 is inserted penetrates between the head 22b of the terminal screw 22 and the ground terminal plate 21, and the ground wire EC is connected to the ground terminal plate 21. And a washer 23 sandwiched therebetween. The ground terminal plate 21 and the washer 23 are each formed by punching and bending a metal plate, for example.

  The ground terminal plate 21 includes a rectangular main body portion 21b that is long on the left and right sides through which the screw holes 21a are formed, and leg portions 21c, 21d, protruding from the outer periphery of the main body portion 21b to the rear (downward in FIG. 21). 21e. In the main body portion 21b, a portion where the screw hole 21a is provided is subjected to burring, and as shown in FIG. 24, the periphery of the screw hole 21a protrudes backward in an annular shape. Further, in the upper leg portion 21c (front side in FIG. 21), a notch 21f is provided in the center portion of the rear end, and the rear end portion is divided into two, and the two rear end portions are separated from each other. A mounting portion 21g is projected above each. Each mounting portion 21g has a caulking hole 21h extending in the front-rear direction, and each terminal portion 51 of the ground conductive plate 5c has a caulking projection 51c protruding from the front surface (the upper surface in FIG. 21). The ground terminal plate 21 is mechanically and electrically connected to the ground conductive plate 5c by inserting the projection 51c into the caulking hole 21h and caulking. Here, the ground terminal 2 forms a ground conductive block EB together with the ground conductive plate 5c. The upper leg portion 21c extends from the left front end portion to the left mounting portion 21g, and the upper leg portion 21c extends from the right end portion to the right mounting portion 21g. The front end portion of 21c and the central portion in the left-right direction is the beam portion in the claims.

  The washer 23 has a shape in which a rectangular introduction cutout 23b is provided at each of a rectangular lower right end and a left lower end that are long to the left and right when viewed from the front. Further, on the upper side of the introduction notch 23b, the four corners of the washer 23 are bent rearward, so that retaining projections 23c and 23d having larger rearward projecting dimensions closer to the left and right ends are provided. . The upper retaining protrusion 23c is located at the depth direction of the introduction notch 23b as viewed from the front of the washer 23, that is, at the upper end.

  When the ground line EC is connected to the ground terminal 2, that is, when the ground line EC is sandwiched between the washer 23 and the ground terminal plate 21, the retaining protrusions 23c and 23d bite into the ground line EC, respectively. Dropping of the line EC is prevented. In addition, since the rearward projecting dimensions of the retaining protrusions 23c and 23d are larger at positions closer to the left and right ends, the ground line EC is less likely to drop off to the left and right.

  Here, the left and right ends of the ground terminal plate 21 are provided with notches 21i that make the left and right dimensions of the front end portion of the upper leg portion 21c smaller than the left and right dimensions of the main body portion 21b. Due to the notches 21i, corners are formed between the upper end surface and the front surface at the left and right end portions of the main body 21b, and the ground lines EC are more difficult to drop off when the corners bite into the ground lines EC. ing.

  Further, the terminal screw 22 is a screw with a washer that is attached to the washer 23 so that it cannot be attached and detached. That is, the terminal screw 22 has a small-diameter portion 22c between the screwed portion 22a having a thread and the head portion 22b and having an outer diameter smaller than that of the screwed portion 22a and inserted into the screw insertion hole 23a of the washer 23. Have. Further, the inner diameter of the screw insertion hole 23a of the washer 23 is smaller than the outer diameter of the screwing portion 22a of the terminal screw 22, and the washer 23 is prevented from falling off by the screwing portion 22a. Further, the length dimension in the axial direction (front-rear direction) of the small diameter portion 22 c is substantially the same as the thickness dimension of the washer 23. Thereby, even when the grounding wire EC is sandwiched between the washer 23 and the grounding terminal plate 21 only on the left and right sides of the terminal screw 22, the inclination and rattling of the washer 23 with respect to the grounding terminal plate 21 can be suppressed. A contact area between the washer 23 and the ground terminal plate 21 and the ground wire EC is secured.

  Further, in the cover 1b, guide portions 12c whose front surfaces are inclined rearward toward the upper side are provided on the lower portions of the introduction notches 23b of the washer 23, respectively. That is, the ground line EC can be easily introduced between the washer 23 and the ground terminal plate 21 by inserting the ground line EC along the front surface of the guide portion 12c.

As described above, if the lower grounding plug blade insertion port 10c is provided inside the grounding terminal receiving recess 12, the lower grounding plug blade insertion port 10c is grounded compared to the case where the lower grounding plug blade insertion port 10c is provided outside the grounding terminal receiving recess 12. Since the distance between the terminal 2 and the grounding plug blade insertion port 10c is reduced, it is possible to reduce the size. In the above example, although two sets of the plug blade insertion port 10 and the grounding terminal 2 are provided, it is defined in JIS C 8375. An assembly frame 4 having a dimension and shape in accordance with the mounting frame can be used.
Japanese Patent Laid-Open No. 10-134894

  However, as shown in FIG. 25, the grounding wire EC connected to the grounding terminal 2 protrudes into the grounding plug blade insertion port 10c, and insertion of the plug blade may be prevented by the grounding wire EC.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide an outlet capable of preventing the insertion of the plug blade into the ground plug blade insertion port by the ground wire. .

The invention of claim 1 is made of a thermosetting resin, and includes a ground side plug blade insertion port into which a ground side electrode blade is inserted, a voltage side plug blade insertion port into which a voltage side electrode blade is inserted, and a ground side. The grounding terminal storage recess provided on the same side as the surface on which the plug blade insertion port and the voltage side plug blade insertion port are provided, and the plug blade of the ground electrode provided inside the grounding terminal storage recess are inserted. A housing with a grounding plug blade insertion port, a grounding blade receiving portion that is made of a conductive material and is in contact with the plug blade inserted into the grounding blade insertion port, and a grounding wire that is housed in the grounding terminal storage recess. A grounding conductive block housed in a housing, a closed position covering the grounding terminal portion of the grounding conductive block and exposing the grounding plug blade insertion port, and exposing the grounding terminal portion of the grounding conductive block Between the open position And a mounted door body, the grounding conductive block, the partition portion is provided for preventing the entry into the ground blade insertion slots of the ground line connected to the ground terminal, the ground conductive block, ground A grounding conductive plate provided with a blade receiving portion and a grounding terminal. The grounding terminal is mechanically and electrically connected to the grounding conductive plate, and a terminal screw is screwed to the grounding terminal plate. It is located on the side farther from the bottom surface of the ground terminal storage recess than the ground terminal plate, and is composed of a washer that is pressed against the ground terminal plate by the terminal screw and sandwiches the ground wire with the ground terminal plate. The main body is made of a metal plate and has a screw hole through which the terminal screw engages in the thickness direction with the thickness direction facing the depth direction of the ground terminal storage recess, At the end in the direction perpendicular to the grounding blade insertion slot Two leg portions that are formed by bending the end on the opposite side in a direction approaching the bottom surface of the ground terminal receiving recess and connected to the ground conductive plate, and a portion sandwiched between the leg portions are formed by cutting and raising. The grounding terminal plate is provided with a beam portion that is located between the bottom surface of the grounding terminal receiving recess and the partitioning portion and connects the legs .

According to this invention, since the partition portion prevents the ground wire from entering the ground plug blade insertion port, the ground wire can prevent the insertion of the plug blade into the ground plug blade insertion port. . Further, since the mechanical strength of the ground terminal plate is improved as compared with the case where the beam portion is not provided, the ground terminal plate is not easily deformed when the terminal screw is tightened.
The invention of claim 2 is made of a thermosetting resin, and includes a ground side plug blade insertion port into which a ground side electrode blade is inserted, a voltage side plug blade insertion port into which a voltage side electrode blade is inserted, The grounding terminal storage recess provided on the same side as the surface on which the plug blade insertion port and the voltage side plug blade insertion port are provided, and the plug blade of the ground electrode provided inside the grounding terminal storage recess are inserted. A housing with a grounding plug blade insertion port, a grounding blade receiving portion that is made of a conductive material and is in contact with the plug blade inserted into the grounding blade insertion port, and a grounding wire that is housed in the grounding terminal storage recess. A grounding conductive block housed in a housing, a closed position covering the grounding terminal portion of the grounding conductive block and exposing the grounding plug blade insertion port, and exposing the grounding terminal portion of the grounding conductive block Between the open position The grounding conductive block is provided with a partition portion for preventing the grounding wire connected to the grounding terminal from entering the grounding plug blade insertion opening. A grounding conductive plate provided with a blade receiving portion and a grounding terminal. The grounding terminal is mechanically and electrically connected to the grounding conductive plate, and a terminal screw is screwed to the grounding terminal plate. It is located on the side farther from the bottom surface of the ground terminal storage recess than the ground terminal plate, and is composed of a washer that is pressed against the ground terminal plate by the terminal screw and sandwiches the ground wire with the ground terminal plate. The main body is made of a metal plate and has a screw hole through which the terminal screw engages in the thickness direction with the thickness direction facing the depth direction of the ground terminal storage recess, At the end in the direction perpendicular to the grounding blade insertion slot Two leg portions that are formed by bending the end on the opposite side toward the bottom surface of the ground terminal storage recess and connected to the ground conductive plate, and beam portions connected to each leg portion and the main body portion, respectively. And a partition portion formed by bending and raising a portion extending from the beam portion in a direction approaching the bottom surface of the ground terminal storage recess.
According to this invention, since the partition portion prevents the ground wire from entering the ground plug blade insertion port, the ground wire can prevent the insertion of the plug blade into the ground plug blade insertion port. . Further, since the mechanical strength of the ground terminal plate is improved as compared with the case where the beam portion is not provided, the ground terminal plate is not easily deformed when the terminal screw is tightened.
The invention of claim 3 is made of a thermosetting resin, and includes a ground side plug blade insertion port into which a ground side electrode blade is inserted, a voltage side plug blade insertion port into which a voltage side electrode blade is inserted, and a ground side. The grounding terminal storage recess provided on the same side as the surface on which the plug blade insertion port and the voltage side plug blade insertion port are provided, and the plug blade of the ground electrode provided inside the grounding terminal storage recess are inserted. A housing with a grounding plug blade insertion port, a grounding blade receiving portion that is made of a conductive material and is in contact with the plug blade inserted into the grounding blade insertion port, and a grounding wire that is housed in the grounding terminal storage recess. A grounding conductive block housed in a housing, a closed position covering the grounding terminal portion of the grounding conductive block and exposing the grounding plug blade insertion port, and exposing the grounding terminal portion of the grounding conductive block Between the open position The grounding conductive block is provided with a partition portion for preventing the grounding wire connected to the grounding terminal from entering the grounding plug blade insertion opening. A grounding conductive plate provided with a blade receiving portion and a grounding terminal. The grounding terminal is mechanically and electrically connected to the grounding conductive plate, and a terminal screw is screwed to the grounding terminal plate. The washer is located on the side farther from the bottom surface of the grounding terminal storage recess than the grounding terminal plate, and is pressed against the grounding terminal plate by the terminal screw to sandwich the grounding wire with the grounding terminal plate. A portion is provided.
According to this invention, since the partition portion prevents the ground wire from entering the ground plug blade insertion port, the ground wire can prevent the insertion of the plug blade into the ground plug blade insertion port. .

The invention of claim 4 is characterized in that, in the invention of any one of claims 1 to 3 , the partition portion elastically protrudes into the ground plug blade insertion port and also serves as a ground blade receiving portion.

  According to the present invention, the structure of the ground conductive block can be simplified and the manufacturing cost can be reduced as compared with the case where the partition portion and the ground blade receiving portion are separately provided.

According to a fifth aspect of the present invention, in the invention according to any one of the first to fourth aspects, the end portion of the partition portion and the end portion in the direction in which the plug blade is removed from the ground plug blade insertion port, And a guide portion that is inclined in a direction away from the ground plug blade insertion opening in a direction in which the plug blade is removed from the ground plug blade insertion opening.

According to this invention, since the plug blade is guided by the guide portion, it is easier to insert the plug blade into the grounded plug blade insertion port than when no guide portion is provided.
Outlet.

According to the first to third aspects of the present invention, since the entry of the ground wire into the ground plug blade insertion port is prevented by the partition portions provided in the ground conductive block , the ground wire leads to the ground plug blade insertion port. It is possible to prevent the insertion of the plug blade from being hindered. According to the first aspect of the present invention, since the ground terminal plate is provided with the beam portion that is located between the bottom surface of the ground terminal storage recess and the partition portion and connects the legs, the beam portion Since the mechanical strength of the grounding terminal plate is improved as compared with the case where the grounding terminal plate is not provided, the grounding terminal plate is hardly deformed when the terminal screw is tightened. Furthermore, according to the invention of claim 2, the beam portion connected to each leg portion and the main body portion, and the portion extended from the beam portion in the direction approaching the bottom surface of the ground terminal storage recess are bent and raised. Since the mechanical strength of the ground terminal plate is improved as compared with the case where no beam portion is provided, the ground terminal plate is less likely to be deformed when the terminal screw is tightened.

According to the invention of claim 4 , since the partition portion also serves as the ground blade receiving portion, the structure of the ground conductive block is simplified and the manufacturing cost is reduced as compared with the case where the partition portion and the ground blade receiving portion are separately provided. can do.

According to the invention of claim 5 , by providing the guide portion for guiding the plug blade in the partition portion, the insertion of the plug blade into the grounding plug blade insertion port is facilitated as compared with the case where the guide portion is not provided.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

  In addition, since the basic composition of each following embodiment is respectively common with a prior art example, about the common part, the same code | symbol is attached | subjected and illustration and description are abbreviate | omitted.

(Embodiment 1)
As shown in FIG. 2, the present embodiment is characterized in that a partition portion 56 projects forward (upward in FIG. 2) from the central portion in the left-right direction of the terminal connecting portion 55 of the ground conductive plate 5c. . As shown in FIGS. 1 and 3, the partition portion 56 is located between the lower ground plug blade insertion port 10 c and the ground terminal 2.

  Moreover, the partition part 56 inclines upward toward the front as a whole, and elastically protrudes to the inside of the grounding plug blade insertion recess 10d, that is, the lower grounding plug blade insertion port 10c. It elastically contacts the plug blade Pc of the ground electrode inserted into the insertion port 10c and functions as a ground side blade receiving portion. Further, the front end portion (upper end portion in FIG. 1) of the partition portion 56 is bent slightly downward to form a guide portion 56a inclined downward (to the right in FIG. 1) forward. That is, since the plug blade Pc of the ground electrode is guided by the upper surface of the guide portion 56a, the plug blade Pc can be easily inserted as compared with the case where the guide portion 56a is not provided as shown in FIG. As a method of providing the guide portion 56a, there is a method of chamfering to reduce the thickness of the tip of the guide portion 56a as shown in FIG. 4B, but as shown in FIG. 4C. Thus, the method using bending is relatively easy.

  According to the above configuration, since the entry of the ground wire EC to the ground plug blade insertion port 10c is blocked by the partition portion 56, the insertion of the plug blade Pc by the ground wire EC can be prevented.

  In the present embodiment, the guide projection 36 of the door body 3 is not required because the partition portion 56 guides the plug blade Pc, so that the guide projection 36 of the door body 3 is omitted as shown in FIG. May be. If this configuration is adopted, the partition portion 56 can be extended further forward (upward in FIG. 5) within a range that does not interfere with the opening and closing of the door body 3, and thereby the ground wire EC can be opened with the door body 3 opened. Can be more reliably prevented from getting over the partition 56.

  Further, as already described, the partition portion 56 also functions as a ground blade receiving portion that elastically contacts the plug blade Pc of the ground electrode. Therefore, in this embodiment, as shown in FIG. 6, the lower portion (right side in FIG. 6) The blade receiving portion 53 may be omitted. Employing this configuration simplifies the shape of the ground conductive plate 5c, thereby reducing the manufacturing cost.

(Embodiment 2)
In the present embodiment, as shown in FIG. 7, the center portion of the leg portion 21 c on the upper side (the front side in FIG. 7) is divided into the ground terminal plate 21, and the tip portion projects forward (see FIG. 7). A partition portion 21j having an L-shaped cross section bent upward) is provided by cutting and raising. As shown in FIG. 8, the partition portion 21 j is located between the lower ground plug blade insertion port 10 c and the ground terminal 2.

  According to the above configuration, since the entry of the ground wire EC to the ground plug blade insertion port 10c is blocked by the partition portion 21j, it is possible to prevent the insertion of the plug blade Pc by the ground wire EC.

  In addition, as shown in FIG. 9, the partition part 21j as a whole is inclined forward (upward in FIG. 9) upward (leftward in FIG. 9) to bring the partition part 21j into the ground plug blade insertion port 10c. A guide portion 21l that is elastically protruded to be elastically contactable with the plug blade Pc of the ground electrode and that is inclined downward toward the front may be provided at the front end portion of the partition portion 21j. If this configuration is adopted, the partition portion 21j functions as the ground blade receiving portion 53, so that the lower ground blade receiving portion 53 is omitted and the ground conductive plate 5c has a simple shape as shown in FIG. As a result, the manufacturing cost can be reduced. Moreover, insertion of the plug blade Pc into the ground plug blade insertion port 10c is facilitated as compared with the case where the guide portion 21l is not provided. Further, in the configuration of FIG. 9, the guide protrusion 36 of the door body 3 is omitted and the partition portion 21j is extended forward (upward in FIG. 9), so that the ground wire EC is opened with the door body 3 opened. It is more reliably prevented from getting over the partition portion 21j.

Furthermore, as shown in FIG. 11, the partition portion 21j is formed in a form in which a through hole is formed in the leg portion 21c, in other words, the rear side of the partition portion 21j (the lower side in FIG. 11, that is, the ground terminal storage recess 12). It may be cut and raised in such a way that the beam portion 21k is formed on the side close to the bottom surface of the beam. If this configuration is adopted, the mechanical strength of the ground terminal plate 21 is improved by the beam portion 21 k , and bending of the ground terminal plate 21 is less likely to occur when the terminal screw 22 is tightened.

  Further, the method of forming the partition portion 21j is not limited to cutting and raising. For example, as shown in FIGS. 12 and 13, a portion extended from the attachment portion 21g when the metal plate is punched is formed between the attachment portions 21g. Alternatively, the partition portion 21j may be formed by bending it. Also in the structure of FIG. 12 and FIG. 13, the mechanical strength of the ground terminal board 21 can be ensured similarly to the structure of FIG.

(Embodiment 3)
In the present embodiment, as shown in FIG. 14, the washer 23 is formed with a partition portion 23 e that is the upper end portion and protrudes rearward from the central portion in the left-right direction by bending.

  As shown in FIG. 15, the partition portion 23e is positioned below the ground plug blade insertion port 10c, and prevents the ground wire EC from entering the ground plug blade insertion port 10c.

  According to the above configuration, since the entry of the ground wire EC to the ground plug blade insertion port 10c is blocked by the partition portion 23e, the insertion of the plug blade Pc by the ground wire EC can be prevented.

  In addition, as shown in FIG. 16, the shape of the partition part 23e is inclined upward (leftward in FIG. 16) toward the rear (downward in FIG. 16), and the tip of the partition part 23e is inserted into the ground plug blade. It may be elastically protruded into the mouth 10c so as to be elastically contactable with the plug blade Pc of the ground electrode. If this configuration is adopted, the partition portion 23e of the washer 23 functions as a ground blade receiving portion, and therefore the ground blade receiving portion 53 below the ground conductive plate 5c is omitted as shown in FIG. 9 in the second embodiment. Manufacturing costs can be reduced. Further, since the inclined partition portion 23e guides the plug blade Pc, the plug blade Pc can be easily inserted into the ground plug blade insertion port 10c.

  Moreover, you may employ | adopt combining a some structure among Embodiment 1 thru | or this embodiment. That is, the partition portions 56, 21j, and 23e may be provided in a plurality of the ground conductive plate 5c, the ground terminal plate 21, and the washer 23, respectively.

It is sectional drawing which shows the principal part of Embodiment 1 of this invention. It is a perspective view which shows a grounding conductive board same as the above. It is a front view which shows the principal part of a state which removed the door body in the same as the above. (A)-(c) is a side view which shows the example of the shape of the partition part same as the above, respectively. It is sectional drawing which shows the principal part of another form same as the above. It is a perspective view which shows the grounding conductive plate of another form same as the above. It is a perspective view which shows the ground terminal board of Embodiment 2 of this invention. It is a front view which shows the principal part of a state which removed the door body in the same as the above. It is sectional drawing which shows the principal part of another form same as the above. It is a perspective view which shows the grounding conductive plate of another form same as the above. It is a perspective view which shows the grounding terminal board of another form same as the above. It is a perspective view which shows the grounding terminal board of another form same as the above. It is sectional drawing which shows the principal part of another form same as the above. It is a perspective view which shows the washer of Embodiment 3 of this invention. It is a front view which shows the principal part of a state which removed the door body in the same as the above. It is sectional drawing which shows the principal part of another form same as the above. It is a front view which shows a prior art example. It is a front view which shows the state which removed the door body in the same as the above. It is a disassembled perspective view which shows the same as the above. It is a perspective view which shows a voltage side conductive plate same as the above, a ground side conductive plate, and a lock spring. It is a disassembled perspective view which shows a grounding conductive block same as the above. It is a perspective view which shows a body and release button same as the above. It is a perspective view which shows a cover and a door body same as the above. It is sectional drawing which shows the principal part same as the above. It is explanatory drawing which shows the subject same as the above.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Housing 2 Grounding terminal 3 Door body 10c Grounding plug blade insertion slot 12 Grounding terminal accommodation recessed part 21j Partition part 21l Guide part 23e Partition part 56 Partition part 56a Guide part EB Grounding conductive block EC Ground wire Pc Plug blade

Claims (5)

Made of thermosetting resin, the ground side plug blade insertion slot into which the ground side electrode blade is inserted, the voltage side blade insertion slot into which the voltage side electrode blade is inserted, the ground side plug blade insertion port, and the voltage side A grounding terminal storage recess provided on the same side as the surface provided with the plug blade insertion port, and a grounding plug blade insertion port provided inside the grounding terminal storage recess and into which the plug blade of the ground electrode is inserted. A housing having
The housing has a grounding blade receiving portion that is made of a conductive material and is in contact with the plug blade inserted into the grounding plug blade insertion port, and a ground terminal portion that is housed in the ground terminal housing recess and connected to the ground wire. A housed grounded conductive block;
A door that is displaceably attached to the housing between a closed position that covers the ground terminal portion of the ground conductive block and exposes the ground plug blade insertion opening, and an open position that exposes the ground terminal portion of the ground conductive block. With body,
The grounding conductive block is provided with a partition portion for preventing the ground wire connected to the ground terminal from entering the ground plug blade insertion port ,
The ground conductive block is composed of a ground conductive plate provided with a ground blade receiving portion and a ground terminal.
The ground terminal is located on the side farther from the bottom surface of the ground terminal receiving recess than the ground terminal plate, a ground terminal plate that is mechanically and electrically connected to the ground conductive plate, a terminal screw that is screwed to the ground terminal plate, and It consists of a washer that is pressed against the grounding terminal plate by the terminal screw and holds the grounding wire between it and the grounding terminal plate.
The ground terminal plate is made of a metal plate, and has a main body portion in which a screw hole into which the terminal screw is screwed in the thickness direction with the thickness direction facing the depth direction of the ground terminal storage recess, An end in a direction orthogonal to the thickness direction and an end close to the ground plug blade insertion opening is bent in a direction approaching the bottom surface of the ground terminal storage recess, and is connected to the ground conductive plate 2 A leg portion and a partition portion formed by cutting and raising a portion sandwiched between the leg portions,
An electrical outlet characterized in that the ground terminal plate is provided with a beam portion that is located between the bottom surface of the ground terminal storage recess and the partition portion and connects the legs . Made of thermosetting resin, the ground side plug blade insertion slot into which the ground side electrode blade is inserted, the voltage side blade insertion slot into which the voltage side electrode blade is inserted, the ground side plug blade insertion port, and the voltage side A grounding terminal storage recess provided on the same side as the surface provided with the plug blade insertion port, and a grounding plug blade insertion port provided inside the grounding terminal storage recess and into which the plug blade of the ground electrode is inserted. A housing having
The housing has a grounding blade receiving portion that is made of a conductive material and is in contact with the plug blade inserted into the grounding plug blade insertion port, and a ground terminal portion that is housed in the ground terminal housing recess and connected to the ground wire. A housed grounded conductive block;
A door that is displaceably attached to the housing between a closed position that covers the ground terminal portion of the ground conductive block and exposes the ground plug blade insertion opening, and an open position that exposes the ground terminal portion of the ground conductive block. With body,
The grounding conductive block is provided with a partition portion for preventing the ground wire connected to the ground terminal from entering the ground plug blade insertion port,
The ground conductive block is composed of a ground conductive plate provided with a ground blade receiving portion and a ground terminal.
The ground terminal is located on the side farther from the bottom surface of the ground terminal receiving recess than the ground terminal plate, a ground terminal plate that is mechanically and electrically connected to the ground conductive plate, a terminal screw that is screwed to the ground terminal plate, and It consists of a washer that is pressed against the grounding terminal plate by the terminal screw and holds the grounding wire between it and the grounding terminal plate.
The ground terminal plate is made of a metal plate, and has a main body portion in which a screw hole into which the terminal screw is screwed in the thickness direction with the thickness direction facing the depth direction of the ground terminal storage recess, An end in a direction orthogonal to the thickness direction and an end close to the ground plug blade insertion opening is bent in a direction approaching the bottom surface of the ground terminal storage recess, and is connected to the ground conductive plate 2 A partition portion formed by bending and raising a leg portion, a beam portion connected to each leg portion and the main body portion, and a portion extending from the beam portion in a direction approaching the bottom surface of the ground terminal storage recess features and to Turkey outlet to have and. Made of thermosetting resin, the ground side plug blade insertion slot into which the ground side electrode blade is inserted, the voltage side blade insertion slot into which the voltage side electrode blade is inserted, the ground side plug blade insertion port, and the voltage side A grounding terminal storage recess provided on the same side as the surface provided with the plug blade insertion port, and a grounding plug blade insertion port provided inside the grounding terminal storage recess and into which the plug blade of the ground electrode is inserted. A housing having
The housing has a grounding blade receiving portion that is made of a conductive material and is in contact with the plug blade inserted into the grounding plug blade insertion port, and a ground terminal portion that is housed in the ground terminal housing recess and connected to the ground wire. A housed grounded conductive block;
A door that is displaceably attached to the housing between a closed position that covers the ground terminal portion of the ground conductive block and exposes the ground plug blade insertion opening, and an open position that exposes the ground terminal portion of the ground conductive block. With body,
The grounding conductive block is provided with a partition portion for preventing the ground wire connected to the ground terminal from entering the ground plug blade insertion port,
The ground conductive block is composed of a ground conductive plate provided with a ground blade receiving portion and a ground terminal.
The ground terminal is located on the side farther from the bottom surface of the ground terminal receiving recess than the ground terminal plate, a ground terminal plate that is mechanically and electrically connected to the ground conductive plate, a terminal screw that is screwed to the ground terminal plate, and It consists of a washer that is pressed against the grounding terminal plate by the terminal screw and holds the grounding wire between it and the grounding terminal plate.
Features and to Turkey outlet to the partition portion is provided in the washer. The outlet according to any one of claims 1 to 3, wherein the partition portion elastically protrudes into the ground plug blade insertion port and also serves as a ground blade receiving portion . At the end of the partition part in the direction of pulling out the plug blade from the grounding plug blade insertion port, the surface facing the grounding plug blade insertion port is directed toward the direction of pulling out the plug blade from the grounding plug blade insertion port. The outlet according to any one of claims 1 to 4 , wherein a guide portion that is inclined in a direction away from the ground plug blade insertion port is provided .

Images