JP3263308B2 - Quick connection terminal device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a quick connection terminal device used for a wiring device, a breaker, and the like.

[0002]

2. Description of the Related Art Conventionally, a so-called quick connection terminal device capable of connection without using a screw has been used for the purpose of facilitating connection to a wiring device, a breaker or the like. As such a quick-connecting terminal device, for example, by using the spring force of a locking spring composed of a leaf spring to sandwich the electric wire between the terminal member and to release the connection between the electric wire and the terminal member. Some have a well-known structure provided with an operation member for bending a locking spring against a spring force. Here, the operation member is locked to the case or the like in a standby state position where the electric wire is not connected to the terminal member, and moves from the standby state position to the connection state position when the electric wire is connected to the terminal member, Moved to the release position when disconnecting the wire and terminal member,
After the release, it is locked to the case or the like again in the standby state.

[0003]

In the above-mentioned conventional structure, there is a problem that the operation member may not be locked to the case or the like in the standby state after the connection between the electric wire and the terminal member is unlocked. . SUMMARY OF THE INVENTION An object of the present invention is to provide a quick-connecting terminal device capable of securely locking an operating member at a standby state when a connection between an electric wire and a terminal member is released. What you want to do.

[0004]

According to the first aspect of the present invention, there is provided a terminal member connected to an electric wire,
A locking spring for urging the electric wire in the direction of the terminal member , a case provided with an electric wire insertion hole for accommodating the terminal member and the locking spring and introducing the electric wire, and an operation member for releasing the connection between the electric wire and the terminal member. The operating member is rotatably supported on the case.
Main piece that protrudes out of the case from one side of this main piece
Extending from the other side of the display piece and main piece
Is a leg positioned on the side to deflect the locking spring, the end at the position of the standby state is not connected to the electric wire and the terminal member
When the wire is inserted from the wire insertion hole to the predetermined position and connected to the terminal member, the locked state is released.
And rotate the display piece to the connected
And rotate it in the direction to further protrude from the
The position of the standby state is set within the rotation range between the release position for releasing the connection between the electric wire and the terminal member and the connection position by bending the spring , and the electric wire and the terminal member Protruding outside the case when disconnecting
Rotate the display piece in the direction to further protrude from the case
The locking spring is bent by the leg piece,
From the standby position to the release position
Since the material is rotated , the operating member returns to the standby state after the connection state is released, and can be reliably locked at the standby state position.

According to a second aspect of the present invention, in the first aspect of the invention, the operating member is locked by a locking portion formed at a position facing the wire insertion hole of the terminal member in the standby state. Yes, when the distal end of the wire inserted into the wire insertion hole reaches a predetermined position where it comes into contact with the locking portion, the pressing of the wire releases the locking of the operating member and the locking portion, and the wire is moved to the predetermined position. Unless inserted, the operation member does not move to the position of the connection state, so that the connection between the electric wire and the terminal member can be reliably performed.

According to a third aspect of the present invention, in the first or second aspect of the present invention, a measuring pin for measuring the insulation performance of the quick connection terminal device is introduced, and when the operating member is in the standby state, it is externally provided. It is equipped with a measurement hole that is not exposed and is exposed when it is in the connected position.Since the measurement hole is not exposed to the outside in the standby state, it is easy to identify the wire insertion hole into which the wire is to be inserted, and Can be prevented from being accidentally inserted into the measurement hole when connecting.

According to a fourth aspect of the present invention, in the third aspect of the present invention, a measuring terminal for measuring insulation performance, which comes into contact with the measuring pin, is protruded from the terminal member into the measuring hole. By inserting it into the hole, it can be easily brought into contact with the terminal member, and the measurement hole can be arranged at any location as long as it is near the terminal member.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is applied to a breaker will be described below with reference to FIGS.
However, it goes without saying that the present invention is not limited to a breaker. As shown in FIG. 2, the breaker B is the first and second cover 3 _1, 3 ₂ attached respectively in the case on both sides of the body 2 which is formed into a substantially box-shaped insulating material such as synthetic resin 1, a contact opening / closing unit C having a conventionally well-known structure is provided inside the case 1. One of both ends in the longitudinal direction of the case 1 has an input-side connection terminal 6 made of a screw-type terminal.
0 _1, 60 ₂ are provided, the output-side connecting terminal portions A consisting of fast imaging terminal device of the present invention is provided on the other. In addition,
The structure and operation of the breaker B excluding the output-side connection terminal portion A according to the present invention are conventionally well-known and are not the gist of the present invention, so that detailed description and illustration are omitted.

FIG. 1 is an exploded perspective view showing the embodiment, that is, an output connection terminal portion A of a breaker B. Side surface of the body 2 on the side where the first cover 3 ₁ is coupled (hereinafter, referred to as "left side".) And the operating member housing recess 4 in which the operation member 20 is housed in, the operation member accommodating recess the first terminal member 30 communicates with the fourth and first to lock spring 50 ₁ is stored
Terminal member storage recess 5 is provided. In addition, this first
Wire insertion holes 7 ₁ and measurement hole ₈₁ that opens to the outside communicates with the terminal member housing recess 5 is provided on the left side as well as coupling surface of the first cover 3 ₁ of the body 2.

On the other hand, the coupling surface of the body 2 of the second cover 3 ₂ second terminal member housing recess 6 is provided which the second of the terminal members 40 and locking spring 50 ₂ is accommodated, this Second
Coupling surface of the terminal member housing recess 6 wire insertion holes 7 ₂ and measurement hole 8 ₂ second cover 3 _second coupling surface and the body 2 of the second cover 3 ₂ which opens to the outside communicates with the (hereinafter ,
Called "right side". ).

First terminal member 30 and second terminal member 4
0 is provided with terminal strips 31, 41.
41 is a lock piece 5 provided on the lock springs 50 ₁ and 50 _2.
1 _1, 51 ₂ and the contact piece 52 _1, 52 ₂ are opposed. Lock piece 51 _1, 51 ₂ and the contact piece 52 _1, 52 _2, the central form tracks both ends of the strip of conductive material having an elastic piece 53
Are formed at both ends of _1, 53 _2. Lock tab 51 ₁ ,
51 ₂ is inclined in a direction approaching the terminal pieces 31, 41 provided in the center piece 53 _1, 53 ₂ first and second terminal members 30 and 40 toward the tip end from the connection portion with the contact piece 5
2 _1, 52 ₂ is bent in a substantially S-shape. The central pieces 53 ₁ and 53 ₂ are formed in a flat plate shape and come into contact with the contact pieces 32 and 42 of the first and second terminal members 30 and 40.

A connecting piece 33 protrudes from the first terminal member 30, and a braided wire 61 from the contact opening / closing unit C is connected to the connecting piece 33. The braided wire 61 and the contact opening / closing unit C are connected to each other. via the first terminal member 30 is connected to one input-side connecting terminals 60 ₁ (see FIG. 2). Note that the second terminal member 40 via a switch mechanism (not shown) is connected to the other input connection terminal 60 _2.

Also, the first and second connection terminals 30, 40
From the ends of the terminal strips 31, 41, the measurement terminal strips 34, 43
There has been inserted are projected respectively, each measurement terminal pieces 34, 43 in the measurement hole _81, 82 in _2. The measuring terminal piece 34, 43 is for contacting conductive with measuring pin (not shown) which is inserted into a measurement hole _81, 82 for measuring the insulation performance of the quick connect terminal devices. That is, in the present embodiment, the measuring terminal strips 34 that are in contact with the measuring pin and are in conduction,
43 is inserted into the measurement holes 8 ₁ and 8 ₂ , so that the measurement pins can be easily brought into contact with the first and second terminal members 30 and 40 and the measurement holes 8 ₁ and 8 ₂ There is an advantage that it can be arranged at any place of the case 1 as long as it is near the first and second terminal members 30 and 40.

The operating member 20 is made of an insulating material such as a synthetic resin, and has an arc-shaped display piece 22, a pair of main pieces 21 and 21 extending from the display piece 22, and a body 2 as shown in FIG. A bearing 23 is provided at an end of each of the main pieces 21 and 21 with a bearing hole 23a through which the rotating shaft 4a provided upright in the operation member storage recess 4 is inserted. 2
A pair of legs 24 protruding from the display piece 22 on the same side as the display piece 22 and an elastic piece 25 suspended from the display piece 22 between the pair of main pieces 21 and 21 are provided. Bearing hole 23
When the rotating shaft 4a of the body 2 is inserted into the case 1a, the rotating shaft 4a is attached to the case 1 so as to be rotatable about the rotating shaft 4a. Here, the elastic piece 25 of the operation member 20 is bent outward so that the distal end portion 25a is separated from the bearing portion 23, and is bent in contact with the side wall of the operation member storage recess 4. That is, the operating member 20 is elastically urged counterclockwise in FIG. 2 by the restoring force of the elastic piece 25 having elasticity.

Further, the leg pieces 24 which are projected from the bearing portion 23 is advanced to the first terminal member housing recess 5 in which the first terminal member 30 and the locking spring 50 ₁ is accommodated. Cylindrical projections 24a, 24a protrude from both side surfaces of the tip of the leg piece 24, and one of the projections 24a passes through the elongated hole 10 penetrating from the first terminal member housing recess 5 to the right side surface of the body 2. It has advanced into the second terminal member storage recess 6. Furthermore, these projections 24a, 24a locking spring 50 _1, 50 ₂ of the locking pieces 51 ₁ housed in the first and second terminal member housing recess 5,6, respectively, 51 respectively ₂ to those In contact. In other words, by rotating the operation member 20 in the clockwise direction in FIG. 2, each of the projections 24a, 24a each locking spring 50 _1, 50 ₂ of the locking pieces 51 _1, 51
₂ is a terminal piece 31 of the first and second terminal members 30, 40,
It can be bent in a direction away from 41.

By the way, when the electric wire 62 is not connected, as shown in FIG. 2, the protruding locked portion 26 provided on the bearing portion 23 of the operating member 20 is connected to the first and second terminal members 30. It is adapted to be engaged with the distal end of the locking piece 35, 44 which is opposed to the wire insertion holes 7 _1, 7 ₂ forms tracks integrally from the contact piece 32, 42 of the 40. In addition, the locking piece 44 of the second terminal member 40 has a distal end portion 44 a formed in a hook shape, and the distal end portion 44 a is inserted into the first terminal member storage recess 5 through the through hole 11 penetrated through the body 2. I'm coming. In this locked state, each projection 24a, 2
4a is locking spring 50 _1, 50 ₂ of the locking pieces 51 _1, 51 ₂
Is not bent.

On the other hand, the display piece 22 of the operating member 20 is provided with a flat operating knob 27 protruding substantially at the center of the surface, and a lateral band-shaped lid 28 protruding toward the body 2 at the tip. . In addition, these operation knob 27 and lid 2
A part of the display piece 22 including 8 is communicated with the operation member storage recess 4 and protrudes outside from the opening window 9 provided in the body 2, and advances and retreats from the opening window 9 as the operation member 20 rotates. At the same time, the lid 28 closes the pair of measurement holes 8 ₁ and 8 ₂ adjacent to the opening window 9 so as to be freely opened and closed.

In this embodiment having the above-described structure, the operation of connecting the electric wire 62 is performed as follows. First, in a state before the electric wire 62 is connected (hereinafter, this state is referred to as a “standby state”), as shown in FIG. 2, the first terminal member 30 is engaged with the tip of the locking piece 35. The stopping portion 26 is locked, and the operation member 20 is held at a predetermined position (hereinafter, this position is referred to as a “standby position”). In this standby position, the operating member 20 is elastically urged counterclockwise in FIG.
As described above, the openings of the measurement holes 8 ₁ and 8 ₂ are covered and closed by the lid 28 provided in the above. That is, in the standby state where the electric wire 62 is not connected, FIG.
As shown in FIG. 4 and FIG. 4, the measurement holes 8 ₁ and 8 ₂ become invisible from the outside, and the operator mistakenly inserts the electric wires 62 into the measurement holes 8 ₁ and 8 _2.
Can be prevented from being inserted.

Next, when connecting the electric wire 62, FIG.
As shown in FIG. ₁, 7_TwoWire 62
, The locking spring 50₁, 50_TwoTablet Lock Piece 5
1₁, 51_TwoAnd contact piece 52₁, 52_TwoAnd the first and second
Between the terminal pieces 31 and 41 of the second terminal members 30 and 40.
The wire 62 is pinched and the lock piece 51₁, 51_TwoThe leading edge of the
Prevents the wire 62 from falling off by cutting into the wire 62
It is supposed to be. Therefore, the wire insertion hole
7₁, 7_TwoSimply insert the wire 62 into the
And the first and second terminal members 30, 40
The electrical connection to is made.

The ends of the electric wires 62 inserted into the electric wire insertion holes 7 ₁ , 7 ₂ are connected to the first and second terminal members 30, 4.
The abutting pieces 35 and 44 are bent in the insertion direction of the electric wire 62. Thus, when the electric wire 62 is pushed to the predetermined position, the bending of the locking pieces 35 and 44 increases, and finally the locking pieces 35 and 44 (the second terminal member 4).
In the case of 0, the engagement between the distal end portion 44a) and the locked portion 26 of the operation member 20 is actually released. As a result, the operation member 20 is rotated counterclockwise in FIG. 5 by the restoring force of the elastic piece 25, and is held at a position where the operation knob 27 provided on the display piece 22 abuts on the periphery of the opening 9 (hereinafter, referred to as the operation piece). , And these states and positions are referred to as a “connection state” and a “connection position”, respectively.)

That is, when the display piece 22 retreats into the opening 9 of the case 1 and moves to the connection position, both the electric wires 62 inserted into the electric wire insertion holes 7 ₁ and 7 ₂ are surely in the first and second positions. It is displayed that the electric connection has been made to the second terminal members 30 and 40, and the operator can see the electric wire 62 by the display.
Is in a secure connection state. When at least one of the electric wires 62 is not completely connected, the locked portion 26 is locked by at least one of the locking pieces 35 and 44, so that the operation member 20 is held at the standby position. Without moving to the connection position, the worker
Is not fully connected. Since the operation measurement hole ₈₁ with the movement of the connection position of the members 20, ₈₂ the lid 28 has blocking the also moves, the measurement hole _81, 82 as shown in FIGS. 6 and 7 It becomes exposed and the measurement pin can be inserted.

Next, a case where the connected electric wire 62 is disconnected will be described. When the operator moves the operation knob 27 toward the electric wire 62, the operation member 20 rotates clockwise around the rotation shaft 4a as shown in FIGS. 24a are lock pieces 51 ₁ , 5
1 ₂ lock piece 51 ₁ in the direction of separating the leading edge from the terminal strip 31, 41, 51 ₂ deflects the can lock piece 51 _1, 51 ₂ pulls the wire 62 easily away from the wire 62 . Then, when the electric wire 62 is pulled out, the locking pieces 35 and 44 pressed by the tip of the electric wire 62 return to the original state, and when the operator releases the operation knob 27, the operation member 2 is released.
The locked portion 26 of 0 is again locked by the locking pieces 35 and 44 and is held at the standby position.

Here, when the operation member 20 is held at the standby position, the projection 2 of the leg piece 24 is
4a, since 24a does not deflect the lock piece 51 _1, 51 _2, locking spring 5 until it is possible to pull out the wire 62
1 _1, 51 To ₂ deflect, approached the operating member 20 from the connection position to the wire 62 past the standby position position (hereinafter,
, Called the "release position"). That is, in the present embodiment, the standby position is set within the rotation range of the operation member 20 between the release position where the connection between the electric wire 62 and the first and second terminal members 30 and 40 is released and the connection position. Therefore, unless the operation member 20 is moved to the release position and the electric wire 62 is pulled out, the locked portion 26 of the operation member 20 is locked by the locking pieces 35 and 44 and held at the standby position. Therefore, it is possible to prevent a malfunction such that the operation member 20 returns to the standby position even though the connection of the electric wire 62 is not released, and after the electric wire 62 is removed, the operation member 20 is returned to the standby position and securely. It can be locked.

[0024]

According to the first aspect of the present invention, there is provided a terminal member connected to an electric wire, and a locking spring for urging the electric wire in the direction of the terminal member.
If, comprising a casing provided with a wire insertion hole for introducing the electric wire accommodating the terminal members and locking spring, and an operation member for releasing the connection between the wire and the terminal member, the operating member is self pivots case
The main piece that is pivotally supported and the case from one side of this main piece
The display piece and the other of the main pieces that extend outwardly
Leg piece extending from the side and located on the side that deflects the locking spring
In the standby state where the electric wire and the terminal member are not connected, the electric wire is locked by the terminal member, and the electric wire is inserted from the electric wire insertion hole to a predetermined position and is locked when connected to the terminal member.
With pivots to the position of the connection state but are released, the table
Rotate the display piece in the direction to further protrude from the case, and
The stand-by position is set within the range of rotation between the release position where the connection between the electric wire and the terminal member is released by bending the locking spring with one piece and the connection position. , Protrudes outside the case when disconnecting the wires and terminal members
Rotate to move the displayed display piece further out of the case
To lock the lock spring with the leg piece,
From the standby position to the release position
Since the operating member is rotated, there is an effect that the operating member returns to the standby state position after the connection state is released, and can be reliably locked at the standby state position.

According to the second aspect of the present invention, the operating member is inserted into the electric wire insertion hole because the operating member is engaged with the engaging portion formed at the position facing the electric wire insertion hole of the terminal member in the standby state. When the distal end of the wire reaches a predetermined position where it abuts the locking portion, the pressing of the wire releases the locking between the operating member and the locking portion, and if the wire is not inserted to the predetermined position, the operating member is in a connected state. , The connection between the electric wire and the terminal member can be surely performed.

According to a third aspect of the present invention, a measuring pin for measuring the insulation performance of the quick connection terminal device is introduced, and when the operating member is in a standby state, it is not exposed to the outside and is in a connected state. Measurement holes that are sometimes exposed, so that the measurement holes are not exposed to the outside in the standby state, making it easier to identify the wire insertion hole into which the wire should be inserted, and accidentally inserting the wire into the measurement hole when connecting the wire. This has the effect of preventing

According to the fourth aspect of the present invention, the measuring terminal for measuring the insulation performance, which is in contact with the measuring pin, is provided so as to protrude into the measuring hole from the terminal member. There is an effect that the contact hole can be easily made conductive, and the measurement hole can be arranged at any position as long as it is near the terminal member.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a main part showing an embodiment of the present invention.

FIG. 2 is a partially cut-away side view showing a state where the electric wires are not connected when the first cover is removed in the same.

FIG. 3 is a side plan view showing a state where the electric wires are not connected when the first cover is removed in the same.

FIG. 4 is a top plan view showing a state where the electric wires are not connected when the first cover is removed in the same.

FIG. 5 is a partially cut-away side view showing a state where the electric wires are connected when the first cover is removed in the above.

FIG. 6 is a side plan view showing a state where the electric wires are connected when the first cover is removed in the first embodiment.

FIG. 7 is a top plan view showing a state in which the electric wires are connected when the first cover is removed in the same.

FIG. 8 is a partially broken side view showing a state in which the electric wire is being removed when the first cover is removed in the same.

FIG. 9 is a side plan view showing a state in which the electric wire is being removed when the first cover is removed in the same.

FIG. 10 is a top plan view showing a state where the electric wire is being removed when the first cover is removed in the same.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Case 20 Operating member 25 Elastic piece 26 Locked part 30 First terminal member 35 Locking piece 40 Second terminal member 44 Locking piece 50 ₁ , 50 ₂ Chain lock spring

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) H01R 4/48 H01H 71/08

Claims (4)

(57) [Claims] 1. A and the terminal members connected to the electric wire, the terminal
A locking spring for urging the electric wire in the direction of the member, a terminal member and a chain
A case provided with an electric wire insertion hole for accommodating the lock spring and introducing the electric wire, and an operating member for releasing the connection between the electric wire and the terminal member, wherein the operating member is a main piece rotatably supported by the case.
And project from one side of this main piece to the outside of the case.
A chain extending from the other side of the extending display piece and the main piece
It has a leg located on the side where the lock spring is deflected, and is locked to the terminal member in a standby state where the electric wire and the terminal member are not connected, and the electric wire is moved from the electric wire insertion hole to a predetermined position. When it is inserted and connected to the terminal member, the locked state is released and it rotates to the position of the connected state, and the display piece is updated from the case.
To rotate the lock spring with the leg piece.
A quick-connecting terminal device wherein a position in a standby state is set within a rotation range between a release position in which the connection between the electric wire and the terminal member is released and a position in the connected state. 2. The quick-connect terminal device according to claim 1, wherein the operation member is locked by a locking portion formed at a position facing the wire insertion hole of the terminal member in the standby state. . 3. Introducing a measuring pin for measuring the insulation performance of the quick-connect terminal device, wherein the measuring member is not exposed to the outside when the operating member is in the standby state and is exposed when the operating member is in the connected state. 3. The quick-connect terminal device according to claim 1, further comprising a hole. 4. The quick-connecting terminal device according to claim 3, wherein a measuring terminal for measuring insulation performance, which comes into contact with the measuring pin, protrudes from the terminal member into the measuring hole.