JP4803136B2 - Wiring equipment - Google Patents

Description

  The present invention relates to a wiring apparatus provided with a quick connection terminal device.

  Conventionally, wiring devices such as switches and outlets have been provided, and this type of wiring device is embedded in the construction material in such a manner that the front surface is exposed from the embedding hole formed in the construction material, A quick-connection terminal device is provided for connecting the electric wire introduced into the container through the electric wire insertion hole provided in the container and provided in the container.

  As the above-mentioned quick connection terminal device, for example, a wire (conductor) is sandwiched between a terminal plate electrically connected to a contact in a switch or a blade holder in an outlet, and the terminal plate. Consists of a lock spring that locks the electric wire and prevents it from coming off at the same time as an electrical connection, and a release button that is operated by a tool such as a screwdriver through an operation hole provided in the body and releases the lock by the lock spring (For example, refer to Patent Document 1).

  However, the wiring device provided with the above-mentioned quick connection terminal device has a problem of giving anxiety to the installer because it cannot be confirmed from the outside whether or not the electric wire is securely connected. Moreover, in order to release the lock of the electric wire by the lock spring in the quick connection terminal device, it is necessary to use a tool such as a screwdriver, and there is a problem that it is difficult to release the electric wire.

  In view of the above points, a wiring device including a quick-connect terminal device that can be unlocked by a lock spring by manual operation has been proposed (see, for example, Patent Document 2). Will be described with reference to FIGS.

  The wiring apparatus shown in FIG. 7 is an embedded outlet with a so-called ground terminal. A box-shaped body 1a made of a synthetic resin and a cover 1b are connected by a metal assembly frame 2 to form a container body 1. ing.

  Here, the assembly frame 2 also serves as an attachment frame for attachment to a so-called embedding box 300 (see FIG. 15) and the like, and is a series of attachments that are standardized for embedded wiring devices in JIS. It is formed in substantially the same shape and size as the frame (the mounting frame of the JIS C 8375 large-angle continuous wiring apparatus). The mounting pieces 2c, 2c facing the longitudinal direction of the assembly frame 2 have long holes 2d, 2d for box screws for mounting to the embedding box 300, and a conventional plaster board for mounting on a wall. Mounting holes 2e and 2e to which known scissor fittings (not shown) are attached, screw holes 2f and 2f for plate screws for attaching a plate frame (not shown) and the like to the front surface, wall materials and the like Are provided with at least screw insertion holes 2g through which mounting screws and the like for attaching the assembly frame 2 directly are inserted.

  The container 1 is formed to have a size corresponding to three pieces of the wiring appliance C having a unit size that can be attached to the above-mentioned standardized series of attachment frames (hereinafter referred to as “three module dimensions”). The inside of the substantially U-shaped protruding piece 2b... In which the protruding portions 3a and 3b protruding from both side surfaces of the body 1a and the cover 1b protrude from the both side pieces 2a and 2a of the assembly frame 2 respectively. By being locked to the periphery, the body 1a and the cover 1b are fixed by the assembly frame 2, and the container body 1 is assembled.

  Two sets of plug insertion ports 4 including a pair of plug blade insertion ports 4a and 4b and a ground electrode insertion port 4c are provided along the longitudinal direction of the cover 1b on the front surface of the cover 1b (the front surface of the body 1). Two plugs (not shown) with a ground electrode can be connected simultaneously. Further, one end of the front surface of the cover 1b in the longitudinal direction (upper right side in FIG. 7) is connected to a ground wire provided in the two-pole plug in a form aligned with the two sets of plug insertion ports 4 provided. An earth terminal 5 is provided, and a door 6 covering the front surface of the earth terminal 5 is attached to the cover 1b so as to be freely opened and closed.

  On the other hand, a pair of ground-side blade receivers 7a and 7a that are electrically and mechanically connected to the plug blades and the grounding poles inserted from the two sets of insertion ports 4a, 4b, and 4c are provided inside the container body 1. The voltage side blade receivers 8a and 8a and the ground blade receivers 9a and 9a are accommodated in shapes corresponding to the respective insertion ports 4a, 4b, and 4c (shapes located behind the respective insertion ports 4a, 4b, and 4c). . Here, the ground-side blade receivers 7a and 7a are integrally formed at both ends of the ground-side terminal plate 10 constituting the quick-connection terminal device by processing a plate-shaped metal member. Similarly, the voltage side blade receivers 8a and 8a are also integrally formed at both ends of the voltage side terminal plate 10 constituting the quick connection terminal device by processing a plate-like metal member. The ground side blade receiver 7a, 7a and the ground side terminal plate 10 constitute the ground side blade receiver block 7, and the voltage side blade receiver 8a, 8a and the voltage side terminal plate 10 include the voltage side blade receiver block 8. Is configured. The ground side blade receiving block 7 and the voltage side blade receiving block 8 have exactly the same shape.

  The pair of ground blade receivers 9a and 9a are integrally formed at both ends of the bridging piece 9b by processing a plate-like metal member. In addition, a pair of ground terminal plates 10 'and 10' constituting the quick connection terminal device according to the present invention are integrally formed on one end side of the bridging piece 9b, and the grounding blade receivers 9a and 9a and the bridging piece 9b are formed. The grounding terminal block 10 'constitutes a grounding blade receiving block 9. A screw terminal fitting 5a is caulked and fixed to the pair of ground terminal plates 10 'and 10', and the earth terminal 5 is constituted by the screw terminal fitting 5a, the screw 5b and the washer 5c.

  The door 6 for the earth terminal is formed of a flexible resin or the like, and its tip is inserted into an insertion port (not shown) of the cover 1b and is detachably locked to the cover 1b. A cover 6c that is connected to the locking pieces 6a and 6a through the hinges 6b and 6b and that covers the opening 1c provided at the front end of the cover 1b so as to be openable and closable. Consists of The cover 6c can be bent and extended with respect to the locking pieces 6a and 6a by thin-walled hinges 6b and 6b. That is, the cover 6c of the door 6 can open and close the opening 1c of the cover 1b by being extended or bent with respect to the locking pieces 6a, 6a. 5 is obscured.

  The container body 1 also houses a pair of doors 100, 100 that automatically shield the plug blade insertion ports 4a, 4b of the plug insertion port 4. That is, the wiring device C is a so-called door outlet. The door 100 is made of a synthetic resin molded product, and is located on the front side of the middle frame 101 housed in the container body 1 between the position where the plug blade insertion ports 4a and 4b are shielded and opened on the back side of the cover 1b. And is elastically biased in a direction to move to a position where the blade insertion holes 4a and 4b are shielded by a return spring 102 made of a leaf spring. That is, the door 100 slides against the spring force of the return spring 102 by being pushed by the plug blades of the plugs inserted into the plug blade insertion ports 4 a and 4 b, and the plug blade insertion port shielded by the door 100. 4a and 4b are opened, and the plug blade can be connected to the blade receivers 7a and 8a. On the contrary, when the plug is pulled out, the door 100 slides by the spring force of the return spring 102 and the plug blade insertion ports 4a and 4b are moved. It returns to the shielding position and prevents foreign matter from entering the body 1 through the plug blade insertion ports 4a and 4b.

  Next, the quick connection terminal device will be described. As shown in FIG. 7, the quick-connection terminal device includes a terminal plate 10 or 10 ′ that comes into contact with the electric wire 200 introduced into the container body 1 through an electric wire insertion hole 91 provided through the rear surface of the container body 1, and a spring. A lock spring that serves as a connection means for holding the electric wire 200 between the terminal plates 10 and 10 ′ by using force and preventing the locking portion (the tip of a spring piece 22 described later) from coming into contact with the electric wire 200 to prevent it from coming off. 20, a release lever 30 for releasing the retaining state by the lock spring 20, and an auxiliary spring 50.

  The terminal plate 10 is bent from an elastic strip-shaped metal plate, and as shown in FIGS. 8A to 8C, a strip-shaped main piece 11 and one of the main pieces 11 along the longitudinal direction thereof. A pair of contact pieces 12 that hangs backward from the edge and a contact piece 13 that hangs backward from the other edge along the longitudinal direction of the main piece 11 are integrally provided. However, in FIG. 8, the blade supports (the ground side blade receiver 7a and the voltage side blade receiver 8a) integrally formed at both end portions of the main piece 11 are omitted. The contact piece 12 has a pair of pressing portions 12a and 12b that press the electric wire at both ends along the insertion direction of the electric wire (vertical direction in FIG. 8C), and the tip of the upper pressing portion 12b. And a locked portion 12c that is bent and raised in a direction away from the wire, and between the pressing portion 12b and the main piece 11, the electric wire is opposed to the electric wire insertion hole 91 penetrating the bottom wall of the body 1a. An insertion portion 14 to be inserted is formed.

  As shown in FIG. 7, the lock spring 20 is formed by bending a belt-shaped metal plate having elasticity into a substantially J shape, and has a bowl-shaped conduction that contacts the main piece 11 and the contact piece 13 of the terminal plate 10. The tip of the spring piece 22 which has the piece 21 and the above-mentioned spring piece 22 bent and formed in a substantially U shape from the lower end of the conductive piece 21 is a locking portion. Further, the spring piece 22 is provided with a bent portion 22a that protrudes in a direction away from the electric wire (a direction approaching the conductive piece 21). As shown in FIG. 10, such a lock spring 20 is disposed inside the terminal plate 10 such that the conducting piece 21 is brought into contact with the main piece 11 and the contact piece 13 and the spring piece 22 is opposed to the contact piece 12. Is done. Here, the width dimension of the contact piece 12 is narrower than the width dimension of the spring piece 22, and on both sides of the contact piece 12 when viewed from the direction perpendicular to the insertion direction of the electric wire (the left-right direction in FIG. 8B). The spring piece 22 protrudes. The terminal plate 10 and the lock spring 20 configured as described above are stored in a terminal plate storage chamber 90 provided in the body 1a.

  The lock spring 20 holds the electric wire inserted from the electric wire insertion hole 91 between the contact piece 12 of the terminal plate 10 and the spring piece 22 of the lock spring 20 and locks (the tip of the spring piece 22). Is prevented by coming into contact with the electric wire.

  The release lever 30 is made of a synthetic resin molded product, and as shown in FIGS. 9A to 9C, a rod-like operation part 31 and a plate-like part that is a rectangular plate and is arranged substantially parallel to the operation part 31. (Locking portion) 32, connecting portions 33, 33 that connect the longitudinal ends of the operation portion 31 and the plate-like portion 32, arm portions 34, 34 that protrude laterally from the connecting portions 33, 33, Shaft portions 35, 35 projecting inward from the distal end portions of the arm portions 34, 34, and projecting table-like pushing portions 36, 36 projecting from positions near the center of the distal end surfaces of the shaft portions 35, 35 are integrally formed. Has been. Positioning portions 37 and 37 for positioning the auxiliary spring 50 are formed by the outer portions of the front end surfaces of the shaft portions 35 and 35 and the outer surfaces of the pushing portions 36 and 36.

  Here, in the wiring device C, two quick-connection terminal devices are provided for each terminal plate 10, 10 ′ including those for the feed wiring, and these two quick-connection terminal devices are provided for the terminal plates 10, 10 respectively. And are stored side by side in each terminal board storage chamber 90 of the body 1a. A plurality of vertical grooves 93 communicating with the terminal plate storage chamber 90 are provided on the side surface of the body 1a, and the connecting portion 33 and the operation portion 31 are disposed outside the container body 1 through a pair of adjacent vertical grooves 93, 93. In this state, the release lever 30 is attached to the body 1a. As shown in FIG. 11, when the release lever 30 is rotated, the operation portion 31 moves in the front-rear direction at a portion sandwiched between the pair of vertical grooves 93, 93 and the wire insertion hole 91 in the body 1a. A pair of supporting ribs 92 and 92 that support the portions 35 and 35 are provided.

  The auxiliary spring 50 is formed by bending a strip-shaped spring material as shown in FIGS. 7 and 12 and is released in the vicinity of the contact piece 51 that contacts the inner wall of the body 1 (body 1a). A spring piece 52 that contacts the lever 30, a substantially U-shaped connection piece 53 that connects the spring piece 52 and the contact piece 51, and a hook-shaped protrusion 54 that protrudes from the tip of the contact piece 51 are integrated. Have.

  Further, the spring piece 52 is bent in a direction away from the release lever 30 with respect to the portion contacting the release lever 30, and further bent in a direction away from the release lever 30 at a portion closer to the connecting piece 53 than the contact portion. Do it. As shown in FIG. 12, the auxiliary spring 50 is disposed inside the terminal plate 10 together with the lock spring 20, and the positioning portion 37 in which the distal end portion 52 a of the spring piece 52 is provided on the arm portion 34 of the release lever 30. Thus, the release lever 30 is elastically biased in the counter-operation direction.

  Such an auxiliary spring 50 is supported by a portion (abutting piece 51) closer to the rear end than the portion abutting on the release lever 30 being in contact with the inner wall of the container 1, and the tip of the spring piece 52. 52 a is positioned by a positioning portion 37 provided on the arm portion 34 of the release lever 30. Further, as shown in FIG. 12, a portion 11a that abuts the auxiliary spring 50 in the anti-wire insertion direction (downward in FIG. 12) is provided in the terminal plate 10, and the auxiliary spring 50 deviates in the electric wire insertion direction. Suppressed.

  In the above-mentioned quick connection terminal device, in a state where the electric wire 200 is not connected, the plate-like portion (locking portion) 32 is locked (latched) to the locked portion 12c of the terminal plate 10 as shown in FIG. The release lever 30 is rotated to the rotation position (hereinafter, this rotation position is referred to as “initial position”). When the release lever 30 is in the initial position, both ends of the spring piece 22 of the lock spring 20 are pushed by the pair of pushing portions 36, 36, and the lock portion (the tip of the spring piece 22) is removed from the contact piece 12. It is in a state of bending in the direction of leaving. At this time, the release lever 30 is elastically biased in the counter-operation direction (counterclockwise in FIG. 13) by the spring force of the spring piece 22 and the spring force of the auxiliary spring 50, but the plate-like portion 32 is engaged with the terminal plate 10. The release lever 30 is held at the initial position because it is locked to the stop portion 12c.

  When the conductor 201 of the electric wire 200 is introduced between the contact piece 12 and the spring piece 22 through the electric wire insertion hole 91, the tip of the conductor 201 passes through the insertion portion 14 as shown in FIG. 14 and the plate-like portion 32 of the release lever 30. The plate-like portion 32 is pushed up to release the latched state between the plate-like portion 32 and the locked portion 12c. Then, the release lever 30 elastically biased by the spring force of the spring piece 22 and the auxiliary spring 50 rotates in the counter-operation direction (counterclockwise in FIG. 14), and the operation portion 31 of the release lever 30 1 moves to the rear end side of one side surface and is located at a position indicated by P in FIG. 13 (hereinafter, this position is referred to as “connection position”). The electric wire 200 is prevented from coming off when the locking portion at the tip of the spring piece 22 contacts the conductor 201, and the conductor 201 is elastically contacted with the contact piece 12 by the spring force of the spring piece 22. Furthermore, the conductor 201 is pressed toward the spring piece 22 by the pair of pressing portions 12a and 12b, and the pressing force of the locking portion and the pair of pressing portions 12a and 12b is balanced to hold the electric wire 200.

  When the locking with the locked portion 12c is released in this manner, the plate-like portion 32 is repelled by the locked portion 12c and a sound is generated, so that the electric wire 200 is connected to the quick connection terminal device by this sound. It can be confirmed.

  Here, the main piece 11 of the terminal board 10 is provided with a guide portion for guiding the tip of the conductor 201 to the insertion portion 14, and the guide 201 can reliably insert the conductor 201 into the insertion portion 14. it can. In the present embodiment, an inclined surface 14a formed at an edge facing the locked portion 12c in the insertion portion 14 formed of a hole provided in the main piece 11 is used as a guide portion (see FIG. 13).

  On the other hand, if the operation unit 31 is operated so as to be pushed up from the connection position to the front of the container 1 (upward in FIG. 13) with the electric wire 200 connected as described above, the support ribs 92 and 92 support the operation unit 31. The release lever 30 rotates in the opposite direction (clockwise in FIG. 13) when the electric wire is connected, with the shaft portions 35, 35 as fulcrums, and the operation portion 31 of the release lever 30 is located on the front end side of the side surface of the container body 1. The spring pieces 22 are moved so that the lock portions (tips of the spring pieces 22) that are in contact with the conductor 201 are separated from the conductor 201 by the pushing portions 36 and 33 pressing the spring pieces 22 of the lock spring 20. The electric wire 200 can be pulled out by being bent. In the following description, the position of the operation unit 31 at which the electric wire 200 can be pulled out when the operation unit 31 is moved to the front of the container 1 from the connection position is referred to as a release position.

As described above, the release lever 30 in the quick connection terminal device of the conventional wiring device C includes the connection position located on the rear end side of the side surface on the side surface of the container body 1 and the front end side of the side surface. An operation portion 31 for manual operation is provided, which is movably attached between the release position and the release position, and by moving the operation portion 31 from the connection position to the release position, the electric wire 200 is pulled out. Is possible.
Japanese Patent Laid-Open No. 11-185905 (see paragraph [0014] and FIG. 1) JP 2007-149629 A

  The container 1 of the wiring device C is, for example, used as a construction material in such a manner that the front surface is exposed from an embedding hole formed in the construction material such as a house wall using an embedding box 300 as shown in FIG. Embedded.

  The embedding box 300 shown in FIG. 15 is formed in a box shape having an opening on the front surface that is large enough to mount two modules 1 each having a module size in the lateral direction. Attachment pieces 310 are integrally projected on both sides of the inner surface in the short direction. The mounting pieces 310 are formed with screw holes 320 into which box screws inserted through the long holes 2d and 2d of the assembly frame 2 are screwed. In addition, an electric wire 200 for connection to a commercial power source (not shown) or a load (not shown) is inserted into the embedded box 300 on the rear wall (bottom wall) of the embedded box 300. An insertion hole (not shown) is provided.

  Then, the wiring device C inserts the wire 300 drawn into the embedded box 300 into the container 1 through the wire insertion hole 91 and connects it to the quick connection terminal device, and then connects the container 1 to the embedded box 300. After that, the box screw into which the long holes 2d and 2d of the assembly frame 2 are inserted is screwed into the screw hole 320 to be attached to the embedding box 300 (installed in the construction material).

  By the way, there is no particular problem when both of the two wiring devices C attached to the embedded box 300 are outlets (embedded outlets with the above-mentioned ground terminals) or switches, but one of them is this. The wiring device C is connected to the commercial power source such as the outlet by the electric wire 200, and the other is not the commercial power source electric wire 200 but the wiring device to which the lower-voltage electric wire 200 is connected (for example, a modular jack). In some cases, the embedded box 300 has a space in the embedded box 300 in which a wiring device to which a relatively high-voltage electric wire 200 is connected is stored and a wiring in which a relatively low-voltage electric wire 200 is connected. It is necessary to provide a separator 330 that partitions the device into a space in which the device is stored and prevents leakage between the wiring devices.

  When the separator 330 is disposed in the embedding box 300, when the container 1 of the wiring device shown in FIGS. 7 to 14 is inserted into the embedding box 300, as shown in FIG. The front end portion (front end portion) of the release lever 30 may come into contact with the rear end portion of the operation portion 31 of the release lever 30, and when the device body 1 is inserted into the embedded box 300 as it is, the operation portion 31 is moved by the separator 330. 1 is pressed to the front side.

  Therefore, in the conventional wiring device C, the operation unit 31 that is located at the connection position after the electric wire 200 is connected is moved from the connection position to the release position by an object such as the separator 330 (the release lever is operated). As a result, the connection state of the electric wire by the quick connection terminal device is released, and the contact state between the electric wire 200 and the quick connection terminal device may become unstable.

  The present invention has been made in view of the above points, and an object thereof is to provide a wiring device that can prevent a release lever from being operated unexpectedly and a connection state of an electric wire from being released. .

  In order to solve the above-described problem, in the invention of claim 1, a container embedded and installed in the construction material in such a manner that the front surface is exposed from the embedding hole formed in the construction material, and is accommodated in the container. A quick connection terminal device, the fast connection terminal device is a terminal plate that contacts an electric wire introduced into the container through an electric wire insertion hole penetrating the rear surface of the container, and a terminal plate using a spring force A connecting means for holding the electric wire between and locking the locking portion against the electric wire to prevent it from coming off, and a release lever for releasing the retaining state by the connecting means. A manual operation unit movably mounted between a connection position located on the rear end side of the side surface and a release position located on the front end side of the side surface, and the operation unit is released from the connection position. Against the spring force against the lock when it is moved to the position. A pushing portion that pushes in a direction away from the electric wire, and on the side surface of the container body, the protruding portion for preventing erroneous operation is aligned with the operating portion in a direction perpendicular to the moving direction of the operating portion within the side surface. And the projecting dimension of the projecting part from the side surface is greater than or equal to the projecting dimension of the operating part located at the release position from the side surface, and the rear end part of the projecting part is located at the release position. It is located in the back of a container rather than the rear-end part.

  According to the first aspect of the present invention, the side surface of the container is formed with a protruding portion for preventing an erroneous operation so as to be aligned with the operating portion in a direction perpendicular to the moving direction of the operating portion within the side surface. Since the rear end portion of the projecting portion is located behind the container from the rear end portion of the operation portion located at the release position, the object abuts on the rear end portion of the operation portion located at the connection position, Even if the object is relatively displaced with respect to the container so as to move the operation unit from the connection position to the release position, the object is moved from the connection position to the release position before the object is moved to the rear end of the protrusion. The operation part is not moved to the release position by the object, and the protrusion dimension from the side surface in the protrusion part is the protrusion dimension from the side surface in the operation part located in the connection position. Since it is above, the above object Even if it is relatively displaced with respect to the body along the side of the protrusion, the operation part is not moved to the release position by the object, so the release lever is operated unexpectedly, and the connection state of the wires Can be prevented from being released.

  The invention according to claim 2 is characterized in that, in the invention according to claim 1, the rear end portion of the projecting portion is located in front of the rear end portion of the operation portion located at the connection position.

  According to the second aspect of the present invention, when the operating portion of the release lever is manually operated, it is possible to prevent the protruding portion from interfering and improve the operability of the release lever.

  The present invention has an effect that it is possible to prevent the release lever from being operated unexpectedly and the connected state of the electric wire from being released.

  As shown in FIGS. 2 to 3, the wiring device C according to the embodiment of the present invention is an embedded outlet with a ground terminal similar to the conventional example (the conventional example shown in FIGS. 7 to 14). Similar to the conventional example, the container embedded in the construction material 400 with the front surface exposed from the embedding hole 410 (see FIG. 6A) formed in the construction material 400 (see FIG. 6A). A body 1 and a quick connection terminal device housed in the body 1, and the fast connection terminal device is an electric wire 200 introduced into the body 1 through a wire insertion hole 91 penetrating the rear surface of the body 1. Connecting means for holding the electric wire 200 between the terminal plate 10 in contact with the terminal plate 10 and the terminal plate 10 using a spring force and preventing the locking portion (tip of the spring piece 22) from coming into contact with the electric wire 200 And the release lever 3 that releases the retaining state by the lock spring 20. And the auxiliary spring 50, and the release lever 30 is movable between a connection position located on the rear end side of the side surface on the side surface of the body 1 and a release position located on the front end side of the side surface. The attached operation part 31 for manual operation and the tip of the spring piece 22 that contacts the electric wire 200 when the operation part 31 is moved from the connection position to the release position against the spring force from the electric wire 200. And a pushing portion 36 that pushes and moves in a pulling direction.

  However, as shown in FIG. 3, the wiring device C of the present embodiment is provided with a protrusion 94 for preventing an erroneous operation on the side surface (side surface of the body 1 a in the short direction) of the container body 1. It is different from the above conventional example. In addition, about the structure similar to the said prior art example, the same code | symbol is attached | subjected and description is abbreviate | omitted.

  As shown in FIG. 5, the protrusion 94 is formed at the edge of the longitudinal groove 93 in the longitudinal direction of the body 1a. That is, the projecting portion 94 is provided on the side surface in the short direction of the body 1a (that is, the side surface provided with a plurality of vertical grooves 93 communicating with the terminal plate storage chamber 90). 31 in a direction (vertical direction in FIG. 3) perpendicular to the moving direction of 31 (front-rear direction of the container 1).

  Here, as shown in FIG. 1, the protruding portion 94 has a protruding dimension from the side surface equal to or larger than the protruding dimension from the side surface of the operation unit 31 located at the release position (that is, the side surface of the protruding portion 94. Is formed on the outer side of the body 1 with respect to the side surface of the operation portion 31 located at the release position. Moreover, the protrusion part 94 is formed in the form where the rear-end part is located in the back of the container 1 rather than the rear-end part of the operation part 31 located in the said release position. In other words, as long as the operation portion 31 is located at the release position, the operation portion 31 does not protrude outward from the protrusion 94 in a plane orthogonal to the longitudinal direction of the container 1. Further, as shown in FIGS. 4A and 4B, the rear end portion of the projecting portion 94 is located in front of the body 1 with respect to the rear end portion of the operation portion 31 located at the connection position. . Furthermore, the rear end portion of the protruding portion 94 has a tapered shape that is inclined so that the protruding dimension from the side surface of the container body 1 increases as it goes forward of the container body 1.

  The wiring device C of the present embodiment is connected to the quick connection terminal device by inserting the electric wire 300 drawn into the embedding box 300 into the container body 1 through the electric wire insertion hole 91 in the same manner as the conventional example. The body 1 is inserted into the embedded box 300, and then the box screw into which the elongated holes 2d and 2d of the assembly frame 2 are inserted is screwed into the screw hole 320 to be attached to the embedded box 300 ( Embedded in the construction material 400).

  Here, when the separator 330 is provided in the embedding box 300, there is a possibility that the leading end portion of the separator 330 may come into contact with the rear end portion of the operation portion 31 located at the connection position. However, since the length of such a separator 330 is longer than the length of the container body 1, the tip of the separator 330 is placed on the side surface of the container body 1 until the operation unit 31 moves from the connection position to the release position. When the container 1 is inserted into the embedded box 300 from this state, the separator 330 that is in contact with the rear end of the protrusion 94 is The protrusion 94 is guided (guided) in the direction away from the side surface of the container body 1 by the rear end portion formed in a tapered shape, and the container body 1 protrudes against the separator 330 as shown in FIG. It smoothly enters the storage space of the embedded box 300 partitioned by the separator 330 without any problem. At this time, the projecting dimension of the projecting portion 94 from the side surface is greater than or equal to the projecting dimension of the operating portion 31 located at the connection position from the side surface, so that the separator 330 is along the side surface of the projecting portion 31. Even in the case of relative displacement with respect to the container body 1, the separator 330 does not interfere with the operation unit 31. When the separator 330 does not contact the rear end portion of the operation portion 31, the operation portion 31 is returned to the connection position by the spring force of the lock spring 20.

  Therefore, according to the wiring device C of the present embodiment described above, the protruding portion 94 for preventing the erroneous operation of the release lever 30 is provided on the side surface of the container 1 where the operation portion 31 is movably provided. In the direction orthogonal to the moving direction of the operating portion 31, the rear end portion of the projecting portion 31 is more than the rear end portion of the operating portion 31 located at the release position. Since it is located behind the body 1, an object such as a separator 330 comes into contact with the rear end of the operation unit 31 located at the connection position, and the object moves the operation unit 31 from the connection position to the release position. Even if the relative displacement with respect to the body 1 is performed, the object comes into contact with the rear end portion of the protruding portion 94 before the operation unit 31 is moved from the connection position to the release position. The operation unit 31 is In addition, since the projecting dimension from the side surface of the projecting portion 94 is not more than the projecting dimension from the side surface of the operation unit 31 located at the connection position, the object is not moved to the release position. Since the operation unit 31 is not moved to the release position by the object even when the lever is displaced relative to the body 1 along the side surface of the protrusion 31, the release lever 30 is operated unexpectedly. Thus, the connection state of the electric wire 200 can be prevented from being released, and the electric wire 200 does not become unstable.

  In the wiring device C of the present embodiment, the rear end portion of the projecting portion 94 is a container rather than the rear end portion of the operation portion 31 located at the connection position, as shown in FIGS. It is located in front of 1. Therefore, when operating the operation part 31 of the release lever 30 manually (when an operator touches the operation part 31), it can suppress that the protrusion part 94 becomes obstructive, and the operativity of the release lever 30 can be improved. . However, the rear end portion of the protruding portion 94 may be located behind the container 1 from the rear end portion of the operation portion 31 located at the connection position. In this case, since an object such as the separator 330 does not touch the operation unit 31, an erroneous operation can be reliably prevented.

  Moreover, in the wiring device C of this embodiment, one side (container) of the two operation parts 31 (two upper operation parts 31 in FIG. 3) juxtaposed so as to sandwich the operation part 21 in the longitudinal direction of the container body 1. One end of the body 1 in the longitudinal direction (upper end side in FIG. 3) and one side of the operation unit 31 provided alone (the lower operation unit 31 in FIG. 3) (one end side in the longitudinal direction of the body 1 [FIG. 3] The protrusions 94 are respectively provided on the upper end side in FIG.

  In this case, on the side where the projecting portion 94 is not provided in each of the two juxtaposed operation units 31 and the operation unit 31 provided alone, the operation unit 31 can be easily touched by hand. Can be improved. On the other hand, an object that causes an erroneous operation such as the separator 330 abuts on the protruding portion 94 before the operation unit 31 is moved to the unlocked position, so that an erroneous operation is prevented. For this reason, the protrusion 94 is provided only on one side of the operation part 31 when the protrusions 94 are formed on both sides of two juxtaposed operation parts 31 and on both sides of the operation part 31 provided alone. The operability of the release lever 30 can be improved as compared with the case where 94 is formed.

  In the present embodiment, the example in which the technical idea of the present invention is applied to a wiring device that is an embedded outlet with a ground terminal has been described. However, the technical idea of the present invention is shown in FIGS. The present invention is not limited to the embedded type outlet with the earth terminal, and the specification can be changed without departing from the gist of the present invention. The technical idea of the present invention can of course be applied to an embedded outlet without an earth terminal, and can also be applied to a wiring device other than the outlet (for example, an embedded switch).

It is a schematic sectional drawing of the principal part of the wiring device of one Embodiment of this invention. The wiring apparatus same as the above is shown, (a) is a perspective view seen from the front, (b) is a perspective view seen from the rear. It is a rear view of a wiring device same as the above. (A) is the AA arrow directional view in FIG. 3, (b) is a side view of a wiring apparatus same as the above. It is the elements on larger scale of the container in the same as the above. It is explanatory drawing at the time of embedding and installing the wiring appliance same as the above. It is a disassembled perspective view of the wiring device of a prior art example. The terminal board which abbreviate | omitted the blade holder in the same as the above is shown, (a) is a front view, (b) is a bottom view, and (c) is a right side view. The release lever in the same as above is shown, (a) is a front view, (b) is a bottom view, and (c) is a right side view. It is a perspective view of a terminal board, a lock spring, and a release lever in the same. It is the front view which abbreviate | omitted partially which shows the state which incorporated the release lever in the body in the same as the above. It is the perspective view which abbreviate | omitted a part of terminal board, lock spring, and auxiliary spring in the same as the above. It is a schematic sectional drawing of the principal part of a wiring instrument same as the above. It is the schematic sectional drawing which a part of which showed the state where the electric wire was connected in the wiring appliance same as the above was abbreviate | omitted. It is a front view of the embedding box which accommodates the same wiring appliance. It is explanatory drawing at the time of embedding and installing the wiring appliance same as the above.

Explanation of symbols

1 body 10 terminal board 20 lock spring (connection means)
30 Release lever 31 Operation part 91 Electric wire insertion hole 94 Protrusion part 200 Electric wire

Claims (2)

A container body embedded and installed in the construction material in such a manner that the front surface is exposed from the embedding hole formed in the construction material, and a quick connection terminal device housed in the container body,
The quick connection terminal device holds the electric wire between the terminal plate contacting the electric wire introduced into the main body through the electric wire insertion hole penetrating the rear surface of the main body and the terminal plate using the spring force. And a connecting means that the locking portion abuts against the electric wire to prevent it from coming off, and a release lever that releases the retaining state by the connecting means,
The release lever is provided on the side surface of the body, and is manually operated to be movable between a connection position located on the rear end side of the side surface and a release position located on the front end side of the side surface. A pressing part that pushes the locking part that is in contact with the electric wire when the part is moved from the connection position to the release position against the spring force in a direction to separate it from the electric wire,
The side surface of the container is provided with a protruding portion for preventing an erroneous operation in a form aligned with the operation unit in a direction orthogonal to the moving direction of the operation unit within the side surface.
The projecting dimension from the side surface in the projecting part is equal to or greater than the projecting dimension from the side surface in the operation unit located at the release position.
The wiring device according to claim 1, wherein a rear end portion of the projecting portion is located behind the container body from a rear end portion of the operation portion located at the release position.   The wiring device according to claim 1, wherein a rear end portion of the projecting portion is located in front of a rear end portion of the operation portion located at the connection position.

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