JP2003308928A - Wiring device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To carry out downsizing of a housing by narrowing the spacing between electrical wire inserting holes. <P>SOLUTION: A display member 16 has a display part 16b installed at a position of the opposite side to the electric wire inserting hole 5 in the inserting direction to the electric wire inserting hole 5 against a push-move part 16a. Compared with a conventional case in which a display member 40 is formed in a shape to protrude in a direction to orthogonally cross the inserting direction of an electric wire 31 against a push-move part 41 to be push-moved by the electric wire 31, a width dimension of the display member 16 (dimension d in the fig. 1) becomes shorter in the base part 42 in which the display part 43 is protruded and arranged. As a result, the width dimension of a terminal plate housing groove 6 and the distance of the electric wire inserting holes 5 can be narrowed and the downsizing of the housing 1 can be made. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wiring device used for indoor wiring and the like.

[0002]

2. Description of the Related Art In a conventional wiring device, a plurality of connecting portions to which cables are respectively connected are arranged in a row on both side surfaces of a housing, and the individual connecting portions are connected one-to-one or one-to-many inside the housing. There is a so-called joint box. This joint box includes, for example, a power supply connection part for connecting a power supply cable from a distribution board, and a plurality of feed wiring connection parts for internally branching and outputting a plurality of power supply lines. Note that these connecting portions have a conventionally known quick-connect terminal structure, and are provided with a plurality of wire insertion holes, and these wire insertion holes are formed in a line on the side surface of the housing.

To connect a cable to the joint box, the coating of each electric wire of the cable is peeled off, the electric wire is inserted into the electric wire insertion hole, and the electric wire is elastically clamped by a terminal plate and a locking spring provided inside. The connection is made. In addition, when removing the connected electric wire, insert a tool such as a screwdriver into the release hole provided in the housing and operate the release button provided inside to bend the locking spring. it can.

Here, if the electric wire is not sufficiently inserted into the electric wire insertion hole, the contact resistance between the terminal plate and the electric wire becomes large, and the amount of heat generated increases. Therefore, the conventional wiring device is provided with a structure for confirming whether or not the electric wire is sufficiently inserted into the electric wire insertion hole.

That is, as shown in FIG. 16, the wire 31 is pushed by the tip of the wire 31 (conductor 32) only when the wire 31 is sufficiently inserted, and the direction perpendicular to the inserting direction of the wire 31 (lower side in FIG. 16). Direction), the inserting direction of the electric wire 31 with respect to the pushing portion 41, and the pushing portion 4
1. The base portion 42 integrally formed so as to project in a direction (rightward in FIG. 16) orthogonal to any of the moving directions of 1.
And a display member 40 having a cylindrical display portion 43 projecting from one side surface (upper surface in FIG. 16) of the base portion 42 facing the moving direction of the pushing portion 41, a display formed on the surface of the housing. The display portion 43 of the display member 40 is disposed in the housing so as to project forward and backward through the hole, and the display member 40 is elastically biased in the direction in which the display portion 43 projects through the display hole. Thus, when the electric wire 31 is not connected, the display portion 43 of the display member 40 projects from the display hole of the housing, and the electric wire 31 inserted in the electric wire insertion hole pushes the pushing portion 41 downward. Then, since the display member 40 moves downward, the display portion 43 enters the display hole and does not project outside the housing, so that it can be confirmed that the electric wire 31 is sufficiently inserted and is securely connected to the connecting portion. It is a thing.

[0006]

However, in the above-mentioned conventional structure, the base portion 42 on which the display portion 43 is provided is
Since the display member 40 is formed in a shape projecting in the direction orthogonal to the insertion direction of the electric wire 31 with respect to the pushing portion 41 pushed by the electric wire 31, the width dimension of the display member 40 (dimension d in FIG. 16). ') Gets bigger. Since the interval (pitch) between the wire insertion holes is defined by the width dimension d ′ of the display member 40, it is difficult to reduce the interval between the wire insertion holes and reduce the size of the housing.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a wiring device in which the space between the wire insertion holes can be narrowed to reduce the size of the housing.

[0008]

In order to achieve the above object, the invention of claim 1 is a housing in which a plurality of connecting portions having one to a plurality of electric wire insertion holes are arranged in an end portion, and the housing. A plurality of terminal plates that are housed inside and are connected to the electric wires by inserting the electric wires inserted into the electric wire insertion holes from a direction substantially orthogonal to the row direction of the connecting parts, and the electric wires between the terminal plates. A plurality of the connecting portions each having a locking spring that elastically clamps an electric wire inserted into the insertion hole, and movable in a direction substantially orthogonal to the row direction of the connecting portions and the inserting direction of the electric wire inserting hole. A plurality of display members that are housed in the housing and that include a pushing portion that is pushed by the tip of an electric wire that is connected to the connecting portion, and a display portion that projects in the moving direction of the pushing portion; Attach the display member in the direction opposite to the direction in which the pushing unit is pushed. An urging member, and a plurality of display holes that are opened in the front surface of the housing and that allow the display unit to move forward and backward in response to the movement of the pushing unit, and the display member with respect to the pushing unit. The display part is provided at a position opposite to the wire insertion hole in the insertion direction into the wire insertion hole, and the display member in the direction substantially orthogonal to the insertion direction of the wire and the moving direction of the display part. Since the width dimension is shorter than that of the conventional example, the distance between the wire insertion holes can be narrowed and the housing can be downsized.

According to a second aspect of the invention, in the first aspect of the invention, the regulation is arranged so as to face the display member in the biasing direction of the biasing member and regulates the movement of the display member in the biasing direction. A portion is provided on the terminal board, and the movement of the display member is regulated by the regulation portion, so that the assemblability is improved.

According to a third aspect of the invention, in the first aspect of the invention, the display member is provided with a stopper for restricting the movement of the display member in the insertion direction of the electric wire, and the display member can be stably moved. .

According to a fourth aspect of the invention, in the third aspect of the invention, a guide portion for guiding the movement of the display member is provided, and a contact surface of the guide portion and the stopper with the display member is formed into a curved surface. The display part can be prevented from rattling during movement by being guided by the guide part, and the contact surface of the guide part and the stopper with the display member is formed into a curved surface. The member can move smoothly.

According to a fifth aspect of the present invention, in the first aspect of the invention, the housing has a box-shaped body having an opening on a front surface,
At least an exposure window that exposes the display section to the front is provided on the front surface and includes a cover that covers the opening surface of the body, and a small cover that closes the exposure window, and the plurality of display holes are provided in the small cover. As a result, the assembling property of the housing is improved as compared with the case where a plurality of display holes are provided in the cover.

The invention of claim 6 is characterized in that, in the invention of claim 1, a window for visually recognizing the conductor of the electric wire inserted into the electric wire insertion hole is provided on the front surface of the housing, and the window is provided. The connection state of the electric wire to the connecting portion can be confirmed by whether or not the conductor of the electric wire is visible.

According to a seventh aspect of the present invention, in the first aspect of the invention, a portion of the front surface of the housing facing the coating of the electric wire inserted into the electric wire insertion hole is formed of a light-transmitting material. As a feature, the wire coating can be seen from the front of the housing, and the wire connection status to the connection part when the amount of the wire stripped is appropriate and the polarity of the wire when the wire coating is color-coded are confirmed. it can.

According to an eighth aspect of the present invention, in the first aspect of the invention, the housing has a box-shaped body having an opening on a front surface,
The cover is formed of a material having a light-transmitting property and covers the opening surface of the body, and the coating of the electric wire can be visually recognized from the front surface of the housing. The polarity of the wire when the coating is color-coded can be confirmed.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS (Embodiment 1) Embodiment 1 of the present invention will be described in detail with reference to FIGS.

The housing 1 has a flat and substantially rectangular parallelepiped shape in which a plurality of (in this embodiment, three in each embodiment, a total of six) connecting portions 4 are arranged in rows at both ends, and one surface (front surface) is open. A body 2 made of synthetic resin and a cover 3 made of synthetic resin having an open rear surface are combined and formed by caulking and fixing with a caulking stud (not shown). The end surface of the connecting portion 4 is recessed, and three wire insertion holes 5 are formed in this recess.

As shown in FIGS. 2 and 4, at both ends of the body 2 (both left and right ends in FIG. 4), there are recessed grooves 5a which form the wire insertion holes 5 in the longitudinal direction of the body 2 (vertical direction in FIG. 4). ), And the recesses 4 that communicate with the three recessed grooves 5a.
The concave portion on the end surface of the connecting portion 4 is formed by a. Here, the concave groove 5a is provided on the side where the electric wire 31 is inserted.
In order that the wire 1 can be easily inserted, the diameter is increased on the insertion side of the electric wire 31, and the diameter decreases toward the inner side. Further, the body 2 has a plurality of ends (nine in this embodiment), both ends of which communicate with the recessed grooves 5a of the wire insertion holes 5, respectively.
The terminal plate storage grooves 6 are arranged substantially parallel to each other, and an insulating wall 7 partitioning between the adjacent terminal plate storage grooves 6 is provided so as to project forward.

Terminal plates 8 having the same size and shape are housed in the terminal plate housing grooves 6, respectively. Terminal board 8
Is formed in a symmetrical shape in the longitudinal direction by bending a strip-shaped metal material as shown in FIGS. 5 and 6, and has a substantially U-shape that opens to the side. The terminal portions 9 are provided at both ends for fixing the locking springs 13 to the locking pieces 9a, and the terminals are fitted to the convex portions 6a projecting on the bottom surface of the terminal plate housing groove 6 at the center. Board 8
Fixing part 1 having a recess 10a opening downward for fixing
The front piece 11 having the number 0 formed therein and bent along the longitudinal direction is provided with a pair of insertion holes 11a through which the display portions 16b of the display member 16 described below are inserted. Further, a semicircular locking groove 11b is formed in the central portion of the front piece 11, and the locking groove 11b is formed in the locking projection 12 provided in the center of the side surface of the insulating wall 7 as shown in FIG. By locking, the movement of the terminal plate 8 in the terminal plate housing groove 6 is restricted. here,
Notches 9b are provided at both ends of the front piece 11 which constitutes the terminal portion 9.
Is formed, and the terminal portion 9 is inserted through the notch 9b.
A part of the locking spring 13 attached to is exposed to the front of the body 2.

The locking spring 13 is formed by bending both ends of an elastic conductive metal strip to form a central piece 1.
A lock piece 13a and a contact piece 13b are formed on both ends of 3c, respectively. The locking piece 13a is bent in a J shape and is inclined so as to widen the distance from the central piece 13c toward the tip from the connecting portion with the central piece 13c. Further, the contact piece 13b is bent in an S shape and has elasticity in the thickness direction of the central piece 13c. The central piece 13c of the locking spring 13 has a flat plate shape, and contacts the rear piece 9c forming the terminal portion 9 together with the front piece 11 so that the locking piece 13a and the contact piece 13b face the front piece 11 of the terminal plate 8. . The positional relationship between the terminal plate 8 and the locking spring 13 and the electric wire insertion hole 5 is such that the electric wire 31 inserted from the electric wire insertion hole 5 has the locking piece 13a and the contact piece 13b of the locking spring 13 and the front piece of the terminal plate 8. It is set to be inserted between 11 and 11. Therefore, when the electric wire 31 is inserted into the electric wire insertion hole 5, as shown in FIG.
The electric wire 31 is pressed and sandwiched between the contact piece 3a and the contact piece 13b and the front piece 11 of the terminal plate 8, and the tip of the locking piece 13a bites into the conductor 32 of the electric wire 31 to prevent the electric wire 31 from being pulled out. The electric wire 31 is formed by 13a and the contact piece 13b.
And the terminal board 8 are electrically connected.

On the other hand, on the bottom surface of the terminal plate accommodating groove 6, a substantially elliptic cylindrical stopper 15 is provided at the center, and the stopper spring 15 is abutted on the locking spring 13 at a symmetrical position so that the stopper 15 moves. The protruding protrusions 14 are provided so as to project. The display member 16 is provided between the protrusion 14 and the stopper 15.
Is provided. The display member 16 is made of a synthetic resin molded product, has a substantially rectangular parallelepiped shape, and has a pushing portion 16a having a tip surface on the side of the protrusion 14 that is an inclined surface 16c that is inclined outward from the front to the rear, and a stopper for the pushing portion 16a. The cylindrical display portion 16b is provided so as to project from the front surface of the rear end portion on the 15th side. Further, guide grooves 16d that fit with the guide portions 7a protruding from the insulating wall 7 of the body 2 are formed in the front-rear direction on both sides of the pushing portion 16a. Furthermore, the protrusion 14 and the stopper 1
A column-shaped pedestal 17 is projectingly provided on the bottom surface of the terminal plate housing groove 6 between 5 and 5, and one end of an urging member 18 made of a coil spring is fixed to the pedestal 17.

Thus, as shown in FIGS. 6 and 7, the pedestal 1
After fixing one end of the urging member 18 to the guide groove 16
The display member 16 is dropped from above into the terminal board housing groove 6 so that d is fitted in the guide portion 7a, and the display portion 16b of the display member 16 is inserted into the insertion hole 11a formed in the front piece 11.
The terminal plate 8 is accommodated in the terminal plate accommodating groove 6 so as to be inserted (see FIG. 8). At this time, the display member 16 is elastically biased forward (upward in FIG. 8) by the biasing member 18.
The forward movement of the display member 16 is restricted by the front piece 11 that is arranged to face the urging direction of 8, and the subsequent work (for example, the work of connecting the body 2 and the cover 3 to assemble the housing 1). In the above), the display member 16 does not pop out from the terminal plate housing groove 6 and the position of the display member 16 does not shift, and the assembling property can be improved. That is, in this embodiment, the front piece 11 of the terminal plate 8 is used as the restriction portion.

The display member 16 accommodated in the terminal plate accommodating groove 6 as described above is orthogonal to both the direction in which the connecting portions 4 are arranged and the direction in which the wire insertion hole 5 is inserted, that is, the front and rear of the housing 1. Direction (vertical direction in FIG. 8), and is elastically biased forward by the biasing member 18 to be held in a state in which the front surface of the pushing portion 16a is in contact with the rear surface of the front piece 11. In addition, the guide groove 16 of the display member 16
Since d is fitted in the guide portion 7a, rattling of the display member 16 during movement in the front-back direction can be prevented. Furthermore, since the movement of the display member 16 in the wire insertion direction of the display member 16 (to the left in FIG. 7) is restricted by the stopper 15 that abuts on the rear end portion of the pushing portion 16a, the display member 16 is stably moved. Can be made. here,
Since the contact surfaces of the guide portion 7a and the stopper 15 with the display member 16 are formed into curved surfaces, the display member 16 can be moved smoothly.

On the other hand, as shown in FIG. 3 (c), both ends of the cover 3 (left and right ends in FIG. 3 (a)) are covered with concave grooves 5a for forming the wire insertion holes 5 like the body 2. Three
3 are arranged in a row in the longitudinal direction (vertical direction in FIG. 3A) of the connecting portion 4 by the recesses 4a communicating with the three recessed grooves 5a.
Is formed on the end surface of the. Further, a protrusion 3a protruding forward is formed in the center of the front surface of the cover 3, and a plurality of tips whose front end abuts the front piece 11 of the terminal plate 8 or the insulating wall 7 is formed on the inner bottom surface of the protrusion 3a. The rib 3b is provided so as to project. That is, when the housing 2 is assembled by connecting the body 2 and the cover 3, each rib 3b abuts on the front piece 11 of the terminal plate 8 so that the rattling of the terminal plate 8 can be suppressed. here,
A plurality of display holes 19 through which the display unit 16b projects so that the display unit 16b can move forward and backward are arranged in a row on the front surface of the protrusion 3a, and when the electric wire 31 is not connected to the connection unit 4, as shown in FIG. When the tip portion of the display portion 16b projects from the display hole 19, it is displayed that the electric wire 31 is not connected.

Further, as shown in FIGS. 3 (b) and 3 (c), three release holes 3c for operating the release button 20 provided for each connecting portion 4 are formed on both side surfaces of the protruding portion 3a. It is provided at equal intervals. The release hole 3c communicates with the internal space of the protrusion 3a, and the release button 20 is arranged in this internal space. The release button 20 is made of synthetic resin and has a release hole 3
3 corresponding to the operation unit 20a facing the c and one connection unit 4
Three drive parts 20b for pushing and driving the locking piece 13a of the locking spring 13 through a notch 9b provided in the terminal part 9 of the one terminal plate 8 are integrally formed. That is, if the tip of a tool such as a flat-blade screwdriver is inserted into the release hole 3c and the operation portion 20a of the release button 20 is pushed, the drive portion 2
0b bends the locking piece 13a rearward and separates it from the electric wire 31 to weaken the holding force of the electric wire 31, and the electric wire 31 can be pulled out in this state. Here, the release button 20 is 3
Since the two drive parts 20b are provided, the lock pieces 13a of the three lock springs 13 corresponding to the respective connection parts 4 can be simultaneously driven.

As shown in FIG. 2, the body 2 in which the terminal plate 8, the locking spring 13, and the display member 16 are housed in the terminal plate housing grooves 6 is provided in the inner space of the protrusion 3a. Release button 2
By covering the cover 3 in which 0 is stored and fixed by crimping with the crimping tack, the body 2 and the cover 3 are joined to assemble the housing 1.

Next, the operation of the display member 16 which is the gist of the present invention will be described. In the present embodiment, one connecting portion 4
3 terminal portions 9 are provided on the front surface of each connection portion 4 as shown in FIG. 3 (a).
The ground side pole and the voltage side pole are clearly marked with the letters. Then, a cable 30 in which a plurality of electric wires 31 are covered with a sheath 34 is connected to each connecting portion 4 like VVF, but the cable 30 used in the present embodiment includes three conductors 32 each having a single wire. The electric wire 31 is provided, the coating 33 is peeled off according to the gauge 1 a formed on the front surface of the housing 1, and the electric wire 31 having the conductor 32 of an appropriate length exposed is inserted into the electric wire insertion hole 5. Here, as shown in FIG. 9, when the electric wire 31 is not connected to the terminal portion 9 of the terminal plate 8, the display member 16 elastically biased by the biasing member 18 has the front surface of the pushing portion 16a. Is held in a state of abutting against the front piece 11, and at this time, the display portion 16b of the display member 16 protrudes from the front surface of the housing 1 through the insertion hole 11a of the front piece 11 and the display hole 19 of the cover 3 and the electric wire 31.
Is displayed as not connected.

When the electric wire 31 with the conductor 32 exposed by removing the coating 33 is inserted into the electric wire insertion hole 5, the electric wire 31 is inserted between the locking spring 13 and the front piece 11 of the terminal plate 8 as described above. The conductor 32 is pressed and sandwiched, the tip of the locking piece 13a bites into the conductor 32 of the electric wire 31 to prevent the electric wire 31 from being pulled out, and the electric connection between the electric wire 31 and the terminal plate 8 is made by the locking piece 13a and the contact piece 13b. Is done. Here, as shown in FIG. 10 and FIG. 11, the tip of the electric wire 31 comes into contact with the inclined surface 16c of the pushing portion 16a of the display member 16 disposed further behind the locking spring 13, and the electric wire 31 is inserted. Accordingly, a backward force (downward in FIGS. 10 and 11) acts on the pushing portion 16a, so that the display member 16 moves backward against the spring force of the biasing member 18. The amount of movement of the display member 16 at this time is determined according to the amount of insertion of the electric wire 31, and as shown in FIGS. 10 and 11, the tip of the electric wire 31 passes over the inclined surface 16c and reaches the front surface of the pushing portion 16a. It becomes maximum when you do. Then, when the display member 16 moves rearward, as shown in FIG.
b also moves backward, and the display unit 1
6b does not project from the display hole 19 on the front surface of the housing 1. That is, the connection state of the electric wire 31 is displayed by the amount by which the display portion 16 b projects from the display hole 19, and the display portion 16 b needs to be displayed by the display hole 19 to securely connect the electric wire 31 to the terminal portion 9.
It is necessary to insert the electric wire 31 until it is completely hidden inside.

Here, the display member 16 in the present embodiment.
As shown in FIG. 1, since the display portion 16b is provided at a position on the side opposite to the wire insertion hole 5 in the insertion direction of the wire insertion hole 5 with respect to the pushing portion 16a, the display portion 43 is projected. The base portion 42 being pushed is pushed by the electric wire 31.
The width dimension (dimension d in FIG. 1) of the display member 16 is shorter than in the conventional example in which the display member 40 is formed in a shape projecting in the direction orthogonal to the insertion direction of the electric wire 31 with respect to 1. As a result, the size of the housing 1 can be reduced by narrowing the width dimension of the terminal plate housing groove 6 and the space between the wire insertion holes 5.

In the present embodiment, three connecting portions 4 provided on each end of the housing 1 are connected to each other in a one-to-one manner by the terminal plate 8. However, for example, three connecting portions corresponding to the voltage side electrodes are provided. By connecting the terminal plate 8, the three terminal plates 8 corresponding to the ground side poles, and the three terminal plates 8 corresponding to the ground electrodes by the conductor plates housed in the housing 1, respectively, the power supply from the distribution board is obtained. The structure may be provided with one power supply connecting portion 4 for connecting the cable and five connecting portions 4 for the feed wiring for branching and outputting a plurality of power source lines inside.

(Embodiment 2) FIG. 12 shows an exploded perspective view of this embodiment. In the present embodiment, the protrusion 3a of the cover 3 is provided with an exposure window 3d that exposes at least the display portion 16b forward, and the display hole 19 is provided in the small cover 21 that closes the exposure window 3d. There are features. Since the other configurations are the same as those of the first embodiment, the same components are designated by the same reference numerals and the description thereof will be omitted.

In the first embodiment, the body 2 and the cover 3
It is necessary to insert the display portion 16b into all of the plurality of display holes 19 at the same time when connecting the plurality of display holes 19, and the number of the display holes 19 is large, and the display holes 19 are unevenly provided in the central portion of the cover 3. As a result, the assembly of the body 2 and the cover 3 may be difficult. Therefore, in the present embodiment, the display hole 19
The portion provided with is formed as a small cover 21 separately from the cover 3, and after the body 2 and the cover 3 are joined, the cover 3 is formed.
The assembling property is improved by closing the exposed window 3d with the small cover 21.

The exposure window 3d provided on the protruding portion 3a of the cover 3 is rectangular, so that when the body 2 and the cover 3 are joined together, all the display portions 16b are exposed to the front of the housing 1 through the exposure window 3d. It has a large size. Then, according to the size and shape of the exposed window 3d, the small cover 2
1 is formed in a rectangular flat plate shape. Therefore, when the body 2 and the cover 3 are joined together, the display portion 16b is not exposed.
Since it only has to be inserted into d, it can be easily covered. Further, when the small cover 21 is attached to the cover 3, the size of the small cover 21 is sufficiently smaller than that of the cover 3, so that the display portion 16b can be easily inserted into the plurality of display holes 19 and the small cover 21 can be easily inserted. Can be easily installed. The small cover 21 may be fixed to the cover 3 by an appropriate method such as concave and convex locking or adhesion.

(Embodiment 3) In this embodiment, as shown in FIG. 13, a plurality of windows 22 for visually recognizing the conductor 32 of the electric wire 31 connected to the connecting portion 4 are provided on the front surface of the protruding portion 3a of the cover 3. The front piece 11 of the terminal plate 8 that is provided in the
Is characterized in that a hole 11c penetrating therethrough in the front-rear direction is drilled, and since the configuration other than this is common to the first embodiment, common components are denoted by the same reference numerals and description thereof is omitted.

A recess 2 is formed on the front edge of the window 22 on the front surface of the protrusion 3a.
2a is provided, and a window cover 22b made of a translucent member such as acrylic resin is attached to the recess 22a to close the window 22.

Since the present embodiment is configured as described above, the connection state of the electric wire 31 to the connecting portion 4 depends on whether or not the tip of the electric wire 31 is visible from the window 22 through the hole 11c of the front piece 11. I can confirm.

(Embodiment 4) This embodiment is characterized in that a portion of the front surface of the housing 1 facing the coating 33 of the electric wire 31 inserted into the electric wire insertion hole 5 is formed of a light-transmitting material. The other configurations are the same as those of the first embodiment.
Since they are the same as those in FIG.

As shown in FIG. 14, a light-transmitting portion 23 made of a light-transmitting material such as acrylic resin covers the wire 31 inserted into the wire insertion hole 5 on the front surface of the housing 1.
It is formed by a two-color molding at a portion facing 3).

Thus, the housing 1 is made through the light transmitting portion 23.
The coating 33 of the electric wire 31 is visible from the front surface of the. That is, when the electric wires 31 of the cable 30 are color-coded, the polarities of the individual electric wires 31 can be visually confirmed. For example, the electric wire 31 of the voltage side pole is connected to the terminal portion 9 of the ground side pole. Incorrect connection can be prevented. Further, a gauge 1a formed on the front surface of the housing 1
The conductor 3 of an appropriate length can be obtained by peeling off the coating 33 using
When 2 is exposed, the electric wire 3 to the connecting portion 4 depends on the state of the coating 33 that is visible through the light transmitting portion 23.
The connection state of No. 1 can be confirmed.

As in the third embodiment, the plurality of windows 2 for visually recognizing the conductor 32 of the electric wire 31 connected to the connecting portion 4 are provided.
If 2 is provided on the front surface of the protrusion 3a of the cover 3, the connection state of the electric wire 31 can be more surely confirmed. Further, in the present embodiment, the translucent portion 23 is formed integrally with the cover 3 by two-color molding, but the translucent portion 23 may be formed separately from the cover 3 and assembled to the cover 3.

(Embodiment 5) This embodiment is characterized in that the cover 3 constituting the housing 1 is made of a translucent material such as acrylic resin as shown in FIG. Since the configuration is the same as that of the first embodiment, the same components are designated by the same reference numerals and the description thereof will be omitted.

Since the cover 3 is made of a translucent material, the cover 3 of the electric wire 31 is applied from the front surface of the housing 1.
3 becomes visible, and both the connection state of the electric wire 31 to the connection portion 4 and the polarity of the electric wire 31 when the coating 33 of the electric wire 31 is color-coded can be confirmed as in the fourth embodiment.

[0043]

According to the first aspect of the present invention, a housing having a plurality of connecting portions having one to a plurality of electric wire insertion holes arranged in rows at the ends, and a direction in which the connecting portions are arranged in a row are accommodated in the housing. A plurality of terminal plates to which the electric wires inserted into the electric wire insertion holes are connected from the direction substantially orthogonal to the terminal parts, and a chain elastically sandwiching the electric wires inserted into the electric wire insertion holes between the terminal plates. A plurality of the connection portions provided with lock springs, and a distal end portion of an electric wire which is movable in a direction substantially orthogonal to the row direction of the connection portions and the insertion direction of the electric wire insertion hole and which is connected to the connection portion. A plurality of display members housed in the housing, each of which includes a pushing portion to be pushed, a display portion protruding in the moving direction of the pushing portion, and a direction opposite to the pushing direction of the pushing portion The biasing member that biases the display member and the opening on the front surface of the housing. And a plurality of display holes in which the display section projects so that the display section can advance and retreat in response to movement of the pushing section, and the display member inserts an electric wire into the electric wire insertion hole with respect to the pushing section. Since the display part is provided at the position opposite to the hole, the width dimension of the display member in the direction substantially orthogonal to the insertion direction of the electric wire and the moving direction of the display part is shorter than that of the conventional example. There is an effect that the interval between the insertion holes can be narrowed and the housing can be downsized.

According to a second aspect of the invention, in the first aspect of the invention, the regulation is arranged so as to face the display member in the biasing direction by the biasing member and regulates the movement of the display member in the biasing direction. Since the terminal portion is provided on the terminal plate, the movement of the display member is regulated by the regulation portion, so that the assembling property is improved.

According to a third aspect of the invention, in the first aspect of the invention, since the stopper for restricting the movement of the display member with respect to the insertion direction of the electric wire is provided, the effect that the display member can be stably moved is provided. is there.

According to a fourth aspect of the present invention, in the third aspect, a guide portion for guiding the movement of the display member is provided, and a contact surface of the guide portion and the stopper with the display member is formed into a curved surface. Therefore, by guiding with the guide part, it is possible to prevent the display member from rattling during movement, and moreover, since the contact surface of the guide part and the stopper with the display member is formed into a curved surface, the display member is smooth. There is an effect that it can be moved to.

According to a fifth aspect of the invention, in the first aspect of the invention, the housing has a box-shaped body having an opening on the front surface,
At least an exposure window that exposes the display section to the front is provided on the front surface and includes a cover that covers the opening surface of the body, and a small cover that closes the exposure window, and the plurality of display holes are provided in the small cover. Therefore, there is an effect that the assembling property of the housing is improved as compared with the case where a plurality of display holes are provided in the cover.

According to the invention of claim 6, in the invention of claim 1, since a window for visually recognizing the conductor of the electric wire inserted into the electric wire insertion hole is provided on the front surface of the housing, the conductor of the electric wire is passed through the window. There is an effect that the connection state of the electric wire with respect to the connection portion can be confirmed depending on whether or not is visible.

According to a seventh aspect of the present invention, in the first aspect of the invention, the portion of the front surface of the housing that faces the coating of the electric wire inserted into the electric wire insertion hole is formed of a light-transmitting material. The effect that the electric wire coating can be visually recognized from the front of the housing, and the connection state of the electric wire to the connection part when the amount of the coating stripped is appropriate and the polarity of the electric wire when the electric wire coating is color-coded There is.

According to an eighth aspect of the present invention, in the first aspect of the invention, the housing has a box-shaped body having a front opening.
Since it is made of a translucent material and consists of a cover that covers the opening surface of the body, the wire coating can be seen from the front of the housing, and the wire connection state to the connection part and the wire coating can be color-coded. There is an effect that the polarity of the electric wire in the case of being confirmed can be confirmed.

[Brief description of drawings]

FIG. 1 is a perspective view of a display member according to a first embodiment.

FIG. 2 is an exploded perspective view of the above.

FIG. 3 shows the same as above, (a) is a front view, (b) is a right side view, and (c) is a half sectional view.

FIG. 4 is a front view of the same cover with the cover removed.

FIG. 5 is a side view of the terminal plate and the locking spring in the above.

FIG. 6 is an exploded perspective view of a connecting portion in the above.

FIG. 7 is an exploded perspective view of the connection portion of the above.

FIG. 8 is a perspective view of a connecting portion in the above.

FIG. 9 is an explanatory diagram of an operation of the above.

FIG. 10 is an operation explanatory diagram of the above.

FIG. 11 is a half cross-sectional view showing a state in which the above electric wires are connected.

FIG. 12 is an exploded perspective view showing a second embodiment.

FIG. 13 is a cross-sectional view showing the main parts of the third embodiment.

FIG. 14 is a sectional view showing a main part of the fourth embodiment.

FIG. 15 is a cross-sectional view showing the main parts of the fifth embodiment.

FIG. 16 is a perspective view showing a conventional display member.

[Explanation of symbols]

1 housing 4 connection 5 Wire insertion hole 8 terminal board 13 Locking spring 16 Display member 16a Pushing part 16b display 16c slope 18 Biasing member 19 Display hole

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Dai Yoshida             2856 Shiratsuka-cho, Tsu-shi, Mie Asahi Electric Industrial Co., Ltd.             Inside the company (72) Inventor Satoshi Tanaka             2856 Shiratsuka-cho, Tsu-shi, Mie Asahi Electric Industrial Co., Ltd.             Inside the company (72) Inventor Mitsuo Kitamura             1048, Kadoma, Kadoma-shi, Osaka Matsushita Electric Works Co., Ltd.             Inside the company (72) Inventor Hayashi friendship             1048, Kadoma, Kadoma-shi, Osaka Matsushita Electric Works Co., Ltd.             Inside the company F term (reference) 5E021 FA08 FB07 FB21 FC32 FC38                       FC40 JA05 KA02

Claims (8)

[Claims] 1. A housing in which a plurality of connecting portions having one to a plurality of electric wire insertion holes are arranged in rows at an end, and a housing which is housed in the housing and which is substantially orthogonal to a direction in which the connecting portions are arranged in a row. A plurality of terminal plates to which the electric wires inserted into the electric wire insertion holes are connected by the connecting portion, and a plurality of locking springs elastically sandwiching the electric wires inserted into the electric wire insertion holes between the terminal plates. The connecting portion and a pushing portion that is movable in a direction substantially orthogonal to the row direction of the connecting portion and the insertion direction of the electric wire insertion hole and is pushed by the tip portion of the electric wire connected to the connecting portion. A plurality of display members that are housed in the housing and that include a display portion that projects in the moving direction of the pushing portion, and bias the display member in a direction opposite to the direction in which the pushing portion is pushed. Urging member and the movement of the pushing portion that opens on the front surface of the housing According to, the display portion comprises a plurality of display holes protruding forward and backward, the display member, at a position opposite to the wire insertion hole in the insertion direction into the wire insertion hole with respect to the pushing portion. A wiring device comprising the display section. 2. The terminal plate is provided with a restricting portion which is arranged so as to face the display member in a biasing direction of the biasing member and restricts movement of the display member in the biasing direction. The wiring device according to claim 1. 3. The wiring device according to claim 1, further comprising a stopper that restricts a movement of the display member with respect to an inserting direction of the electric wire. 4. The wiring according to claim 3, wherein a guide portion for guiding the movement of the display member is provided, and a contact surface of the guide portion and the stopper with the display member is formed into a curved surface. apparatus. 5. The housing has a box-shaped body that opens to the front, and a cover that has an exposure window that exposes at least the display unit to the front and covers the opening of the body.
The wiring device according to claim 1, comprising a small cover that closes the exposed window, and the plurality of display holes are provided in the small cover. 6. The wiring device according to claim 1, wherein a window for visually recognizing a conductor of the electric wire inserted in the electric wire insertion hole is provided on a front surface of the housing. 7. The wiring device according to claim 1, wherein a portion of the front surface of the housing facing the coating of the electric wire inserted into the electric wire insertion hole is formed of a light-transmitting material. 8. The housing according to claim 1, wherein the housing is composed of a box-shaped body having a front opening, and a cover formed of a translucent material to cover the opening surface of the body. Wiring device.