JP2020113375A - Intermediate wiring board - Google Patents

Abstract

To provide an intermediate wiring board capable of preventing occurrence of erroneous wiring or erroneous disconnection when mounting/removing wiring to/from a terminal.SOLUTION: The present invention relates to an intermediate wiring board 1 comprising: a housing 10 including multiple accommodation parts 16 which are disposed in parallel in a row direction; multiple terminal blocks 20 disposed in the accommodation parts 16, being movable between a standby position B for accommodation in the accommodation parts 16 and a protruding position C protruding from the accommodation parts 16, and including multiple terminals 21; multiple extrusion mechanisms 30 disposed in the housing 10 for each of the terminal blocks 20, and being capable of extruding the terminal blocks 20 from the standby position B to the protruding position C; multiple insulation covers 50 disposed in the housing 10 for each of the accommodation parts 16, and being capable of opening/closing the accommodation parts 16; and an operation part 40 for selectively operating the extrusion mechanism 30.SELECTED DRAWING: Figure 2

Description

The present invention relates to an intermediate wiring board.

Conventionally, the wiring of a communication line is performed using an intermediate wiring board in which a large number of terminals are arranged. The wiring work of the communication line is performed by, for example, winding the conductor portion of the cable of the communication device around each of the plurality of terminals.

In recent years, the spacing between adjacent terminals has become narrower due to the higher density of terminals arranged on an intermediate wiring board. Therefore, when the communication cable is attached to or removed from the intermediate wiring board, erroneous wiring, contact between adjacent wirings, erroneous disconnection of adjacent wirings, or the like may occur. As a method of preventing these, for example, Patent Document 1 describes a method using an insulating cover.

Patent Document 1 describes a method of attaching a insulating cover to a terminal to shield the side surface of the terminal and perform wiring work. According to this method, it is possible to easily prevent a short circuit of the terminals of the intermediate wiring board.

JP, 2010-140698, A

However, depending on the method of attaching the insulating cover, there is a possibility that the adjacent wiring may be accidentally pulled out and cut, or that the adjacent wiring may be accidentally wired. In order to prevent such problems from occurring, it is desired to have an intermediate distribution board in which work target locations and non-work target locations are clearly separated.

The present invention has been made in view of the above, and an object of the present invention is to provide an intermediate wiring board that can prevent the occurrence of erroneous wiring or erroneous disconnection when attaching or removing wiring to a terminal.

The present invention provides a housing having a plurality of accommodating portions arranged in parallel in a predetermined direction, a standby position that is disposed in each of the accommodating portions and that is accommodated in the accommodating portion, and a protruding position that protrudes from the accommodating portion. A plurality of movable terminal blocks having a plurality of terminals, a plurality of pushing mechanisms arranged in the housing for each of the terminal blocks, capable of pushing the terminal blocks from the standby position to the protruding position, The present invention relates to an intermediate wiring board that includes a plurality of insulating covers that are arranged in the housing for each of the housing units and that can open and close the housing units, and an operation unit that selectively operates the pushing mechanism.

The pushing mechanism releases the regulation from a regulation position that regulates the movement of the terminal block at the standby position in conjunction with the urging member that urges the terminal block toward the protruding position and the operation of the operation portion. And a regulating member that moves to the release position.

The terminal block is arranged at a position different from the regulation member of the housing, and further includes a lock mechanism having a key hole, the lock mechanism interlocking with the rotation of the key inserted in the key hole, and the terminal. It is preferable to switch between a state where the movement of the block is restricted and a state where the restriction is released.

It is preferable that the color of the terminal block and the color of the insulating cover be different.

According to the present invention, it is possible to provide an intermediate wiring board capable of preventing the occurrence of erroneous wiring or erroneous disconnection when attaching or removing a wiring to a terminal.

It is a perspective view showing an intermediate distribution board concerning one embodiment of the present invention. It is a perspective view which shows the intermediate wiring board which concerns on one Embodiment of this invention which one of the terminal blocks projected from the accommodation part of a housing|casing. It is a front view which shows the intermediate wiring board which concerns on one Embodiment of this invention which one of the terminal blocks projected from the accommodation part of a housing|casing. It is the sectional view on the AA line of FIG. It is sectional drawing explaining the method of pushing out the terminal block of the intermediate wiring board which concerns on one Embodiment of this invention so that it may protrude from an accommodating part. It is sectional drawing which shows the state by which the cable was attached to the terminal block of the intermediate wiring board which concerns on one Embodiment of this invention which protruded from the accommodating part. It is sectional drawing which shows the method of accommodating the terminal block of the intermediate wiring board which concerns on one Embodiment of this invention in the accommodating part of a housing|casing.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, the present invention is not limited to the following embodiments.

FIG. 1 is a perspective view of an intermediate wiring board 1 according to the present embodiment, and FIG. 2 is a perspective view of the intermediate wiring board 1 in which one of a plurality of terminal blocks 20 described later is projected from a housing portion 16 of a housing 10, 3 is a front view of the intermediate wiring board 1 with one of the plurality of terminal blocks 20 protruding from the housing portion 16 of the housing 10, and FIG. 4 is a cross-sectional view taken along line AA of FIG. 3 (described later). The substrate and the terminals 21 are not shown).

The configuration of the intermediate wiring board 1 according to this embodiment will be described. As shown in FIGS. 1 to 4, the intermediate wiring board 1 includes a housing 10, a plurality of terminal blocks 20, a plurality of pushing mechanisms 30, a plurality of operating portions 40, a plurality of insulating covers 50, and a plurality of insulating covers 50. And a locking mechanism 60 of.

The housing 10 is a horizontally long housing having an open front surface when viewed from the front. The housing 10 includes an upper frame portion 11 forming an upper surface of the housing 10, a lower frame portion 12 forming a bottom surface, side surface portions 13L and 13R forming left and right side surfaces, and a back surface portion 14 forming a back surface. And a plurality of partition members 15. In the following description, as shown in FIG. 1, the X direction means the longitudinal direction of the housing 10, the Y direction means the lateral direction of the housing 10, and the Z direction means the thickness direction of the housing 10. 1, in the longitudinal direction, the left side is the X1 side, the right side is the X2 side, the shorter side is the Y1 side, the lower side is the Y2 side, and the back side is the Z1 side and the front side in the thickness direction. Let side be the Z2 side.

The plurality of partition members 15 extend from the rear surface portion 14 of the housing 10 to the Z2 side, and are formed between the upper frame portion 11 and the lower frame portion 12 in parallel with the pair of side surface portions 13L and 13R. The partition members 15 adjacent to each other are formed so that the distance between them is substantially equal. With this configuration, a plurality of accommodating portions 16 that are partitioned in the row direction by the plurality of partition members 15 and have substantially the same size are formed. The “row direction” here is the same direction as the longitudinal direction of the housing 10. The accommodating portion 16 has a size capable of accommodating a terminal block 20 described later.

On the surface of the lower frame portion 12 on the Z2 side, a plurality of lead-out grooves 17 capable of leading a plurality of wirings from each housing portion 16 to the outside of the housing 10 are formed. Further, the lower frame portion 12 is formed with a fitting hole 18 which communicates with the housing portion 16 and into which a locking projection 62 of the lock mechanism 60 described later can be fitted. An opening (not shown) is formed in the rear surface portion 14 so as to open from each accommodation portion 16 to the outside. The opening is formed so as to expose the terminals 21 arranged on the Z1 side of the terminal block 20 described later.

As shown in FIGS. 2 to 4, the terminal block 20 includes a substrate (not shown), a plurality of terminals 21, a peripheral wall 22, and a locking projection 25. The terminal block 20 is formed so as to be accommodated in the standby position B (see FIG. 4 and the like) of the accommodating portion 16 as shown in FIG. The housing 10 of the present embodiment has 25 rows of accommodating portions 16 formed therein, and accommodates 25 terminal blocks 20. Further, the terminal block 20 has a red color.

The substrate is made of an insulating material and is a vertically long plate-shaped member when viewed from the front. The terminal 21 is a terminal to which a cable of the communication device is connected. The plurality of terminals 21 are arranged in parallel in the column direction on both surfaces of the substrate in the Z direction on the Z1 side and the Z2 side. The “column direction” here is the same direction as the lateral direction of the housing 10.

The peripheral wall 22 is a wall that extends in parallel to the Z direction from the periphery of both surfaces where the plurality of terminals 21 of the substrate are arranged in parallel, toward the Z1 side and the Z2 side, and is formed so as to surround the plurality of terminals 21. It A lead-out groove 23 is formed on the end surface of the peripheral wall 22 forming the bottom surface of the terminal block 20 on the Z2 side so that a plurality of cables can be led out of the terminal block 20. The lead-out groove 23 overlaps with the lead-out groove 17 of the housing 10 in a state where the terminal block 20 is housed in the standby position B of the housing portion 16, and is a position where a plurality of cables can be pulled out of the housing 10. Is formed. Further, the peripheral wall 22 forming the bottom surface of the terminal block 20 is formed with a fitting hole 24 into which a locking projection 62 of a lock mechanism 60 described later is fitted. The fitting hole 24 overlaps with the fitting hole 18 of the housing 10 in a state where the terminal block 20 is housed in the standby position B of the housing portion 16 of the housing 10, so that the locking projection 62 can be fitted therein. It is formed in a position where it can.

The locking projection 25 is provided on the Y1 side of the peripheral wall 22 that forms the upper surface of the terminal block 20, and is formed so as to engage with the restriction member 32 described later. A locking surface 251 that is a surface parallel to the Y direction is formed on the Z2 side of the locking projection 25, and a push-up slope 252 having a slope from the Y1 side to the Y2 side as going from the Z2 side to the Z1 side. Are formed on the Z1 side.

As shown in FIG. 4, the pushing mechanism 30 is configured to include a biasing member 31 and a restricting member 32. The pushing mechanism 30 is a mechanism for pushing the terminal block 20 from the standby position B of the housing portion 16 to the Z2 side, and is arranged for each terminal block 20. In this embodiment, a coil spring is used as the biasing member 31.

The biasing member 31 has one end connected to the end face of the peripheral wall 22 forming the side surface of the terminal block 20 on the Z1 side, and the other end connected to the back face portion 14 facing the end face. In the present embodiment, the four biasing members 31 connect the housing 10 and the peripheral walls 22 forming the left and right side surfaces of the terminal block 20. The urging member 31 is arranged so as to be in a compressed state from its natural length when the terminal block 20 is housed in the housing 10. That is, the terminal block 20 housed in the housing 10 is in a state in which the biasing force from the Z1 side to the Z2 side is applied. The biasing force is set to be larger than the biasing force of the spring hinge 51 described later.

The restriction member 32 includes a lock arm 321, a rod 327, and a return spring 328.

The lock arm 321 is a rod-shaped member built in the upper frame portion 11 located above each housing portion 16, and includes a claw portion 322, a connecting portion 325, and a rotating shaft 326. The claw portion 322 is formed at one end of the lock arm 321. A locking surface 323, which is a surface parallel to the Y direction, is formed on the Z1 side of the claw portion 322, and a guide slope 324 having a slope from the Y1 side to the Y2 side as going from the Z2 side to the Z1 side is provided. It is formed on the Z2 side. The lock arm 321 is arranged at the regulation position D (see FIG. 4 etc.) in which the locking surface 323 of the claw portion 322 contacts the locking surface 251 of the terminal block 20 when the terminal block 20 is housed in the housing portion 16. To be done. The contact between the locking surface 323 and the locking surface 251 restricts the movement of the terminal block 20 and maintains the biasing force of the biasing member 31 against the terminal block 20. The connecting portion 325 is a portion located at the other end of the lock arm 321 and connected to one end of a rod 327 described later. The lock arm 321 is rotatably connected to the rod 327 about the connecting portion 325 as an axis. The rotating shaft 326 is a connection portion with the housing 10 located between the claw portion 322 and the connecting portion 325. The lock arm 321 is attached to the housing 10 so as to be rotatable about the rotation shaft 326.

The rod 327 is a rod-shaped member having one end connected to the lock arm 321 and the other end connected to the operation unit 40 described later. The rod 327 is parallel to the Z direction and is slidably arranged. The restriction member 32 is configured such that the lock arm 321 can rotate about the rotation shaft 326 so that the claw portion 322 moves from the Z1 side to the Z2 side when the rod 327 slides toward the Z1 side. The lock arm 321 rotates, the restriction member 32 moves to a release position separated from the locking projection 25, and the restriction of the terminal block 20 is released, whereby a part of the terminal block 20 protrudes to the outside. C (see FIGS. 2 and 6) is extruded.

One end of the return spring 328 is connected to the lock arm 321, and the other end is connected to the Z1 side upper frame portion 11. The rotation of the lock arm 321 is limited by the biasing force of the return spring 328.

The operation unit 40 is a push button connected to one end of the rod 327. The operation portion 40 is arranged for each terminal block 20 on the outer surface of the upper frame portion 11 on the Z2 side. The operation unit 40 is configured to be able to slide the rod 327 connected to the operation unit 40 in the Z1 direction when pushed from the Z2 side toward the Z1 side. When the rod 327 slides in the Z1 direction, the regulation member 32 moves from the regulation position D to the release position.

The insulating cover 50 is a plate-shaped vertically long insulating member, is arranged in each of the housing portions 16 of the housing 10, and opens and closes the Z2 side opening of the housing 10. The insulating cover 50 has a black color. The insulating cover 50 is openably/closably attached to the partition member 15 or the side surface portion 13R forming each accommodation portion 16 via the spring hinge 51. The spring hinge 51 has a torsion coil spring attached to the connecting portion of the pair of hinge pieces. The insulating cover 50 is set to have a width and a length that can cover the front surface of the terminal block 20. As for the spring hinge 51, one hinge piece is attached to the inner side surface of the partition member 15, and the other hinge piece is attached to the inner side surface of the insulating cover 50. The spring hinge 51 is formed so that the insulating cover 50 urges the accommodating portion 16 in the closing direction. When the terminal block 20 is placed in the standby position by the urging force of the spring hinges 51, the housing portion 16 is closed by the insulating cover 50, and this state is maintained. On the other hand, when a force larger than the urging force of the spring hinge 51 is applied to the insulating cover 50 from the housing portion 16 toward the Z2 side, the insulating cover 50 is opened and the housing portion 16 is opened.

As shown in FIG. 4, the lock mechanism 60 is a rod-shaped member built in the lower frame portion 12 of each housing portion 16, and has a cylindrical body portion 61, a locking projection 62, a key hole 63, and It is configured to include. The lock mechanism 60 is arranged parallel to the Z direction. The locking protrusion 62 is a rod-shaped protrusion formed on the circumference of the main body 61 of the lock mechanism 60. The locking protrusion 62 is formed so as to be able to be fitted into the fitting hole 18 of the housing 10 and the fitting hole 24 of the terminal block 20. The keyhole 63 is formed on the Z2 side end surface of the main body 61. The lock mechanism 60 is formed so that the body 61 is rotated by inserting the key into the keyhole 63 and turning the key in a predetermined direction. By fitting the locking projection 62 into the fitting hole 18 and the fitting hole 24, the movement of the terminal block 20 accommodated in the standby position B is restricted.

Next, a method of attaching the cable 70 to the intermediate wiring board 1 according to the present embodiment will be described with reference to FIGS. 5 to 7 (the substrate and the terminal 21 are not shown).

FIG. 5 is a cross-sectional view showing the intermediate wiring board 1 in a state before the cable 70 is attached to the terminal 21 on the Z2 side, and FIG. 6 is a state in which the terminal block 20 is pushed out from the housing 10 and the cable 70 is attached. FIG. 7 is a cross-sectional view showing the intermediate wiring board 1 in a state in which the terminal block 20 to which the cable 70 is attached is accommodated.

In the intermediate wiring board 1 before the cable 70 is attached, as shown in FIG. 1, the insulating covers 50 in all rows are closed and locked by the lock mechanism 60.

First, an operator inserts a key into the key hole 63 of the terminal block 20 of the row to which the cable 70 is attached, and turns it to a predetermined angle. Then, the locking projection 62 of the lock mechanism 60 is released from the fitting hole 18 of the housing 10 and the fitting hole 24 of the terminal block 20 to be unlocked.

Next, the worker pushes the operation unit 40 to the Z1 side. Then, the rod 327 slides from the Z2 side to the Z1 side. Then, the lock arm 321 rotates about the rotation shaft 326 in the direction in which the claw portion 322 moves from the Z1 side to the Z2 side. At this time, the return spring 328 is stretched to obtain a biasing force in the Z1 direction. When the claw portion 322 moves to the Y1 side from the upper surface of the locking projection portion 25 and is separated from the locking projection portion 25, the regulation of the terminal block 20 by the lock arm 321 is released. At the same time, the urging force of the urging member 31 that is larger than the urging force of the spring hinge 51 causes the terminal block 20 to push open the insulating cover 50 and push it to the protruding position C.

As shown in FIG. 6, in the intermediate wiring board 1, one of the plurality of terminal blocks 20 projects to the outside of the housing 10. The urging member 31 is connected to the peripheral wall 22 of the terminal block 20 and the back surface portion 14 of the housing 10 in a natural length state. In the regulation member 32, the lock arm 321 and the rod 327 return to their original positions by the biasing force of the return spring 328. At this time, the locking projection 25 moves to the Z2 side with respect to the lock arm 321, and the guide slope 324 of the claw 322 and the push-up slope 252 of the locking projection 25 face each other.

An operator connects the cable 70 to each terminal 21. In the state of the intermediate wiring board 1 at this time, as shown in FIG. 2, only the terminal blocks 20 in the row to be worked protrude forward from the housing 10, and the other terminal blocks 20 are closed by the insulating cover 50. It is in a state of being accommodated in the accommodation unit 16. As a result, it is possible to prevent contact with the terminals 21 other than the terminal block 20 that is the work target, so that it is possible to prevent erroneous wiring to the terminals 21 arranged in adjacent columns, erroneous disconnection of existing wiring, and the like. Further, since the insulating cover 50 and the terminal block 20 have different colors, the terminal block 20 to be worked becomes clearer and the worker's consciousness of the work target can be concentrated.

After the attachment of the cable 70 is completed, the operator pushes the terminal block 20 protruding forward from the Z2 side to the Z1 side with a force larger than the biasing force of the biasing member 31. Then, the push-up slope 252 of the terminal block 20 pushes up the lock arm 321 while coming into contact with the guide slope 324, and the lock arm 321 compresses the return spring 328 and the claw portion 322 moves from the Z2 side to the Z1 side around the rotating shaft 326. Rotate in the direction you want. When the locking projection 25 moves to the Z1 side from the claw 322 and separates from the claw 322, the lock arm 321 returns to the original angle by the urging force of the return spring 328. Then, the locking surface 251 of the terminal block 20 and the locking surface 323 of the lock arm 321 contact each other, and the movement of the terminal block 20 is again restricted. The insulating cover 50 is automatically closed by the biasing force of the spring hinge 51. The cable 70 connected to each terminal 21 is led out to the lower side of the housing 10 from the lead-out groove 23 and the lead-out groove 17.

The operator inserts the key into the keyhole 63 and turns it to a predetermined angle. Then, the main body 61 of the lock mechanism 60 rotates, and the locking projection 62 is fitted into the fitting hole 18 and the fitting hole 24, whereby the movement of the terminal block 20 is restricted.

The intermediate wiring board 1 according to the embodiment described above has the following effects.

The intermediate wiring board 1 is arranged in each of the housings 10 having a plurality of accommodating portions 16 arranged in the row direction, and is placed in each of the accommodating portions 16 and protrudes from the standby position B and the accommodating portions 16 accommodated in the accommodating portions 16. A plurality of terminal blocks 20 that can move between the protruding positions C and that have a plurality of terminals 21 are arranged in the housing 10 for each terminal block 20, and the terminal blocks 20 can be pushed out from the standby position B to the protruding position C. A plurality of push-out mechanisms 30, a plurality of insulating covers 50 arranged in the housing 10 for each of the housing portions 16 and capable of opening and closing the housing portions 16, and an operation portion 40 for selectively operating the push-out mechanism 30.

With this structure, when the cable 70 is attached to or removed from the terminal 21, only the terminal block 20 in the row to be worked is projected forward from the housing 10, and the other terminal blocks 20 are closed by the insulating cover 50. It can be in a state of being housed in the housing unit 16. As a result, the terminal block 20 that is the work target is isolated from the other terminal blocks 20, and thus incorrect wiring and incorrect disconnection can be suppressed.

The pushing mechanism 30 regulates the biasing member 31 that biases the terminal block 20 toward the protruding position C, and the regulation position D that regulates the movement of the terminal block 20 at the standby position B, in conjunction with the operation of the operation unit 40. And a restriction member 32 that moves to a release position.

Since the movement of the terminal block 20 is regulated by the regulation member 32, only the terminal block 20 to be worked can be more surely projected from the intermediate wiring board 1.

Further provided is a lock mechanism 60 having a keyhole 63 arranged at a position different from the restriction member 32 of the housing 10 for each terminal block 20, and the lock mechanism 60 is interlocked with the rotation of the key inserted into the keyhole 63, The state is switched between the state where the movement of the terminal block 20 is restricted and the state where the restriction is released.
As a result, if the lock is not unlocked with the key, the terminal block 20 does not move even if the operation unit 40 is pushed, so that the security can be improved.

The color of the terminal block 20 and the color of the insulating cover 50 are different.
As a result, the work target portion becomes clearer, and the worker can focus on the work target terminal block 20.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments and can be appropriately modified.

In the embodiment described above, the pushing mechanism 30 is configured to include the biasing member 31 and the regulating member 32, but the actuator is attached to the terminal block 20 and the rear surface portion 14 without using the biasing member 31 and the regulating member 32. Alternatively, the pushing mechanism may be controlled by an electric signal.

Although the coil spring is used as the biasing member 31 in the above-described embodiment, the elastic member is not particularly limited as long as it is an elastic member. For example, even an elastic member made of a metal material is made of a polymer material such as an elastomer. It may be a stretchable member. Further, the shape may be a plate shape, a tube shape, a string shape, or the like.

In the above-described embodiment, the four urging members 31 are connected to the end surface of the peripheral wall 22 of the terminal block 20, but the number of the urging members 31 is not particularly limited, and it may be two or three. Good. Further, the biasing member 31 may be attached to the substrate instead of the peripheral wall 22 of the terminal block 20.

In the above-described embodiment, the push button attached to the housing 10 is used as the operation unit 40, but it is not particularly limited as long as the position of the regulation member 32 can be controlled. For example, an actuator may be used instead of the rod 327 to externally operate. The position of the regulating member 32 may be controlled by an electric signal from the.

DESCRIPTION OF SYMBOLS 1 Intermediate wiring board 10 Housing 16 Housing part 20 Terminal block 21 Terminal 30 Extrusion mechanism 40 Operation part 50 Insulation cover 60 Lock mechanism B Standby position C Projection position

Claims (4)

A casing having a plurality of accommodating portions arranged in parallel in a predetermined direction,
A plurality of terminal blocks arranged in each of the housing portions, movable between a standby position housed in the housing portions and a protruding position projecting from the housing portion, and having a plurality of terminals,
A plurality of pushing mechanisms arranged in the housing for each of the terminal blocks and capable of pushing the terminal blocks from the standby position to the protruding position,
A plurality of insulating covers that are arranged in the housing for each of the housing portions and that can open and close the housing portions;
An intermediate wiring board comprising: an operation unit that selectively operates the pushing mechanism. The extrusion mechanism is
A biasing member that biases the terminal block toward the protruding position,
The intermediate wiring board according to claim 1, further comprising: a restricting member that moves from a restricting position that restricts the movement of the terminal block at the standby position to a release position that releases the restriction in association with the operation of the operation unit. Further provided with a lock mechanism having a keyhole, which is arranged for each of the terminal blocks at a position different from the regulating member of the housing,
The intermediate wiring board according to claim 2, wherein the lock mechanism switches between a state in which the movement of the terminal block is restricted and a state in which the restriction is released in association with the rotation of a key inserted in the key hole. The intermediate wiring board according to claim 1, wherein a color of the terminal block and a color of the insulating cover are different.

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