JP2000003738A - Wiring connecting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide, with the simple operation, a wiring connecting device for equipment having superior maintenance characteristic, while capable of surely performing the reliable wiring connection. SOLUTION: A socket 6 to be connected to a case 2 of an equipment 1 from a back thereof is formed with a through hole, in which a connecting terminal 4 projected from the case 2 can be inserted, and a lead wire 5 is constituted insertable into this through-hole from a rear end of the through-hole. Contact pieces 11 (a, b) for making a core wire 5a of the inserted lead wire 5 pressure- contact with the connecting terminal 4 is provided oscillatable inside the through-hole. A cover 7 capable of passing the lead wire 5 is installed in the socket 6, and with the installation of this cover 7, the contact pieces 11 (a, b) are pushed by the inner surface of the cover 7 so as to be oscillated in the contact acting direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wiring connection device suitable for wiring processing of various devices such as a push button switch mounted on a panel of a control panel or the like.

[0002]

2. Description of the Related Art Conventionally, means for connecting a lead wire to a connection terminal of a device include (1) means for connecting a lead wire to a connection terminal by soldering, and (2) a wrapping machine using the connection terminal as a wrapping terminal. And (3) means for connecting the lead wire with screws by using the connection terminal as a screw terminal, and soldering connection means are often used in small devices.

[0003]

However, the soldering connection means is the simplest and most frequently used means. However, the flux used for soldering infiltrates the equipment and may cause poor contact. The device case may be deformed or melted by overheating due to the soldering iron, and the work requires careful attention. Also,
When performing maintenance or replacing equipment, it is necessary to remove the solder, which tends to reduce workability. Also, the lapping connection means requires a special tool, and is inconvenient in places such as a control panel where wiring is dense. Also, the screw connection means is easy to connect and disconnect the wiring, but since the connecting wire drawing direction and the terminal direction are at right angles, a step to avoid mutual interference is provided, and the space for the mounting surface is increased. It had to be large and was unsuitable for small devices.

In particular, as shown in FIG. 13, when a small device 1 such as a push button switch is mounted in parallel with an operation panel 21 of a control panel or the like, a large number of devices protruding from the rear surface of the device 1 are provided. Each of the connection terminals 4 is subjected to a wiring connection process by soldering. However, since the interval between the connection terminals 4 is small, work is difficult, and other wirings are densely arranged on the back side of the control panel. , Making the work more difficult.

SUMMARY OF THE INVENTION An object of the present invention is to provide a wiring connection device which can perform reliable and reliable wiring connection with a simple operation and is excellent in maintenance.

[0006]

In order to achieve the above object, the present invention has the following configuration.

According to a first aspect of the present invention, there is provided an apparatus having a through-hole which can be connected to a device and in which a terminal on the device and a wiring to be connected thereto can be inserted in the connected state. And a pressure contact body displaceably disposed so as to press the wiring to the terminal in the through hole by the device body.

[0008] According to a second aspect of the present invention, in the wiring connection device according to the first aspect, the device body is provided with the through hole and connected to the device, and is attached to the connection body. And the mounting body is configured to be displaceable by a mounting operation of the mounting body on the connecting body, and the pressing is performed by this displacement.

According to a third aspect of the present invention, in the wiring connection device according to the second aspect, the mounting body has a through hole through which the wiring can be inserted, and can be temporarily mounted to the connecting body. Inserting the wiring into the through-hole of the connecting body through the through-hole of the mounting body in a provisional mounting state of the mounting body with respect to the connecting body, and moving the mounting body from the provisional mounting position to the real mounting position in the inserted state. The press-contact body can be displaced by performing a mounting operation.

According to a fourth aspect of the present invention, there is provided the wiring connection device according to the third aspect, further comprising a holding portion for elastically locking the inserted wiring and temporarily holding the inserted wiring in the through hole of the mounting body. I have.

According to a fifth aspect of the present invention, in the wire connection device according to any one of the second to fourth aspects, the pressure contact body is provided between a press contact portion located in the through hole and an outside of the through hole. An operating portion that is located, and the pressing portion is displaced by the operating portion being pressed by the mounting body in the mounting operation of the mounting body, and the displaced pressing portion presses the wiring against the terminal. Things.

According to a sixth aspect of the present invention, in the wiring connection device according to the fifth aspect, the press-contact body is swingably held by the connecting body, and the mounting body is mounted on the connecting body. Then, when the operation portion is pressed by the mounting body, the press-contact portion swings and displaces in the through-hole of the connecting body to press the wire against the terminal.

According to a seventh aspect of the present invention, in the wire connection device according to any one of the second to sixth aspects, the tip of the inserted wire is inserted into the terminal insertion portion inside the through hole of the connector. Guides are provided to control entry.

According to an eighth aspect of the present invention, in the wire connecting device according to the first aspect, the press-contact body is integrally formed with the device body and elastically deforms in the through-hole to connect the wire. The terminal is displaced so as to be pressed against the terminal.

According to a ninth aspect of the present invention, there is provided a wiring connection device having a plurality of through holes which can be connected to a device and in which the terminal on the device side and the wiring to be connected thereto can be inserted in this connected state. A device body, comprising a plurality of press-contact portions that can be inserted into each of the through holes by the device body and a press-contact body including an operation portion that integrally connects the press-contact portions, and operating the operation portion. Each of the press-contact portions is displaced to a corresponding terminal in each through-hole and press-contacted.

According to the structure of the first aspect of the present invention, the terminal on the equipment side is inserted into the through-hole of the device body, and the wiring is inserted into the through-hole, so that the press-contact body is provided in the through-hole. The wiring is pressed against the terminal.

According to the construction of the second aspect of the present invention, when the mounting body is mounted on the connecting body, the pressing body is displaced and the wiring is pressed against the terminal.

According to the configuration of the third aspect of the present invention, the mounting body is mounted from the temporary mounting position to the full mounting position to displace the press-contact body and press the wiring to the terminal.

According to the configuration of the invention according to claim 4, the wiring inserted into the mounting body can be elastically locked, and when a plurality of wirings are inserted into the mounting body to perform a connection operation, the wiring is connected. It can be handled without falling off.

According to the fifth aspect of the present invention, the operation portion of the press body is pressed by the mounting operation of the mounting body, and the press contact portion is displaced, and the displaced press contact portion can press the wiring to the terminal. .

According to the configuration of the sixth aspect of the present invention, the operating portion of the press-contact body is pressed with the mounting of the mounting body to the connecting body, and the press-contacting portion swings and displaces in the through hole of the connecting body, thereby causing wiring. Can be pressed against the terminal.

According to the seventh aspect of the invention, the position of the wiring inserted into the through-hole in the connecting body is regulated by the guide provided in the hole, and the tip of the wiring is prevented from entering the terminal insertion portion. You.

According to the structure of the invention according to claim 8, the press-contact body is elastically deformed in the through hole and displaced so as to press the wiring against the terminal, so that the press-contact body and the device body can be integrally formed. .

According to the ninth aspect of the present invention, since the plurality of press contact portions respectively inserted into the respective through holes are connected by the operation portion, any one of the press contact portions is inserted into any one of the through holes. By inserting and connecting wiring, so-called crossover wiring can be made unnecessary.

[0025]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows the disassembled state of the wiring connection device of the present invention applied to a push button switch which is an example of a device, and FIG. 2 shows the connection state thereof.

The push button switch 1 has two sets of switching mechanisms (not shown) built in a resin case 2, performs a contact switching operation by a push button 3 on the front surface, and determines the operation state by a built-in lamp. A large number of connection terminals 4 project from the rear end face of the case 2 in a predetermined arrangement. The connection terminal 4 includes two sets of switching connection terminals 4 (S) including a normally open terminal, a normally closed terminal, and a common terminal.
And a group of connection terminals 4 (L) for operating the indicator lamp.

Each connection terminal 4 of the push button switch 1
The wiring connection device A for connecting the lead wire 5 to the socket has a socket 6 as a connecting body and a cover 7 as a mounting body screwed to the connecting body, and the socket 6 and the cover 7
The device body is constituted by.

As shown in FIG. 3, the socket 6
The thin plate-shaped mounting piece 6a, which is resin-molded into a rectangular block shape and is externally fitted to the case 2 of the push button switch 1 from right and left, extends, and a large number of through holes 8 penetrate back and forth. The connection terminals 4 are formed in an arrangement pattern. A front end opening 8a of each through hole 8 is formed in a slit shape into which each connection terminal 4 can be inserted without looseness, and a rear end opening 8b of the through hole 8 is formed in a large square hole shape for lead wire insertion. I have. On the rear end surface of the case 2, an insulating partition wall 9 is provided upright between two sets of switching connection terminals 4 (S), and a slit 10 for inserting the partition wall 9 is provided on the front surface of the socket 6. Is formed.

Each of the through holes 8 is provided with a metal contact piece 11 as a press-contact body. As shown in FIGS. 1 and 4, the contact piece 11 is a contact portion 11 a as a tongue-shaped pressure contact portion inserted into the through hole 8.
In addition, a wide operating portion 11b as an operating portion is formed by bending and connecting at an obtuse bending angle.
The contact hole 11c formed in the contact hole 11c is engaged with the engagement protrusion 12 projecting from the edge of the hole of the rear end opening 8b. It is swingably supported like a balance.

The cover 7 is formed by molding a resin into a thick plate, and a notch 13 formed at an appropriate location around the cover 7 and a guide projection 14 protruding from the rear surface of the socket 6 are fitted. The cover 7 for the socket 6
Is to be aligned. In the cover 7, a lead wire insertion hole 15 which is a through hole facing the rear end opening 8b of the through hole 8 is formed, and a thin plate-shaped tongue is provided inside the lead wire insertion hole 15. 1
6 is provided so as to be elastically deformable. This tongue piece 16
The lead wire 5 penetrates the outer skin of the inserted lead wire 5 and
Can be elastically locked and held.

On the front surface of the cover 7, there are provided contact projections 17 for pressing right and left portions of the operation portion 11 b of the contact piece 11 mounted in each through hole 8. When it is screwed into the contact piece 1, the contact projection 17 of the cover 7
The first operating portion 11b is pressed to swing the contact piece 11. In addition, socket 6
A screw seat 19 for the screw 18 protrudes from the rear surface, and the state in which the front surface of the cover 7 abuts the screw seat 19 is the tightening limit of the cover 7. The distance between the front end and the rear surface of the socket 6 is set to a size corresponding to the thickness of the operating portion 11 b of the contact piece 11.

The wiring connection device A according to the present invention is configured as described above. Next, the handling thereof will be described.

First, the contact pieces 11 are temporarily mounted in the respective through holes 8 of the socket 6, and the cover 7 is temporarily tightened with the screws 18 so that the contact pieces 11 can freely swing.

As shown in FIGS. 5 and 6, the lead wire 5 having the core wire 5a exposed by peeling the outer skin of the front end portion is inserted into the lead wire insertion hole 15 of the cover 7 from behind. At this time, the tip of the tongue piece 16 is inserted into the outer skin of the lead wire 5 so that the core wire 5a is inserted farther than the contact portion 11a of the contact piece 11 in the free state. A thin-walled guide 20 is formed inside the front end opening 8a of the through hole 8 along the side surface of the connection terminal 4 to be inserted, while a guide is formed inside the rear end opening 8b of the through hole 8. The tip of the inserted core wire 5a is guided by these guides 20 and 25 so as to prevent the tip of the core wire 5a from entering the insertion location of the connection terminal 4, and these guides are formed. 20,2
5, the connection terminal 4 of the case 2 can be inserted and removed as described later.

Next, the socket 6 is fitted and mounted from the rear of the case 2, and each connection terminal 4 is inserted from the front end opening 8 a of the through hole 8. In this state, there is room between the contact portion 11a and the connection terminal 4 to allow the movement of the core wire 5a.

Thereafter, as shown in FIG. 7, when the cover 7 is moved closer to the socket 6 by tightening the screw 18, the contact projection 15 on the front face of the cover pushes the operating portion 11b of the contact piece 11 forward. When the contact piece 11 is pressed, the contact piece 11a is forcibly rocked by the so-called leverage principle with the locking point with the locking projection 12 as a fulcrum, and the contact portion 11a approaches the connection terminal 4 side. As a result, in the actual mounting position,
The core wire 5a is strongly pressed against the side surface of the connection terminal 4, and the connection terminal 4 and the lead wire 5 are reliably connected and conducted. When the core wire 5a is thick, the degree of swing of the contact piece 11 is changed by adjusting the degree of tightening of the screw 18, and
Perform reasonable pressing. That is, by adjusting the degree of tightening of the screw 18, the contact pressure can be arbitrarily changed, a reasonable and reliable connection state can be easily obtained, and highly reliable wiring connection can be performed. .

The socket 6 to which the cover 7 has been temporarily tightened is fitted and mounted from the rear of the case 2 so that each connection terminal 4
Is inserted from the front end opening 8a of the through hole 8 and the lead wire 5 having the core wire 5a exposed by peeling the outer skin of the front end portion is inserted into the lead wire insertion hole 15 of the cover 7 from the rear and a screw 18 is inserted.
May be tightened.

The socket 6 is used for maintenance and the like.
When the connection terminal 4 is separated from the case 2, the guides 20 and 25 guide the core wire 5 a so that the tip of the core wire 5 a does not enter the insertion location of the connection terminal 4 even if the connection terminal 4 is pulled out from the through hole 8. Therefore, when the connection terminal 4 is inserted again, the tip of the connection terminal 4 and the core wire 5a collide with each other, and the core wire 5a is deformed and deviated from the initial position, or hinders the insertion of the connection terminal 4. As a result, the occurrence of a problem that the connection between the case 2 and the socket 6 becomes impossible can be avoided.

FIGS. 8 and 9 show an example in which a plurality of push-button switches 1 are mounted in parallel close to the operation panel 21, and the wiring connection device A of the present invention is particularly effectively used in such a case. it can. That is, the connection terminal of the switch 1 mounted on the operation panel 21 can be easily and quickly connected in a narrow space on the back surface of the operation panel 21.

The present invention can be implemented in the following modes.

(1) As shown in FIG. 10, when the device is a switch incorporating a plurality of switching mechanisms, a plurality of contact portions 11a are inserted into through holes 8 into which connection terminals serving as common terminals of the respective switching mechanisms are inserted. Is connected by a series of operation units, and a lead wire is inserted and connected to any one of the through holes 8 to eliminate the need for crossover wiring.

(2) As means for eliminating the need for crossover wiring between a plurality of common terminals, a common contact piece 11 having an elastically deformable contact portion 11a is inserted into the socket 6 as shown in FIG. It may be molded. In this case, the cover can be omitted.

(3) As means for locking and holding the lead wire 5 to the cover 7, as shown in FIG. 12, a resin sheet 22 having appropriate toughness and elasticity is attached to the outer surface of the cover 7. At the same time, the cutout 23 is formed in the resin sheet 22 at a position corresponding to the lead wire insertion hole 15 which is largely opened, so that the lead wire 5 inserted into the cutout 23 is locked and held by the resin sheet 22. It is also possible.

(4) In the above-described embodiment, after the cover 7 is temporarily tightened (temporarily attached) with the screws 18, the lead wire 5 and the connection terminal 4 are inserted, and the lead wire 5 and the connection terminal 4 are connected.
Although the screw 18 was fully tightened (permanently attached) so as to be surely and electrically connected, another embodiment of the present invention is as follows.
Instead of screw tightening, the cover may be attached to the socket by two-stage press-fitting of temporary press-fitting and main press-fitting corresponding to the temporary tightening and main tightening, or equivalent to the temporary tightening and main tightening. The cover may be attached to the socket by the temporary engagement and the full engagement.

For example, one of the socket 6 and the cover 7 is provided with an engagement projection, and the other is formed with two engagement holes or recesses for temporary engagement and full engagement with the engagement projection, respectively. When the cover is attached to the socket and the engagement protrusion is engaged with the engagement hole or the engagement recess for provisional engagement, the mounting state is equivalent to the provisional tightening with the screw 18 of the above-described embodiment. When the cover is deeply mounted and the engagement protrusions are engaged with the engagement holes or engagement recesses for full engagement, a mounting state corresponding to the full tightening by the screw 18 may be adopted.

In such two-stage mounting by press-fitting or engagement, the degree of press-contact by the contact piece 5, that is, the contact pressure cannot be adjusted as in screw-fastening mounting, but operation can be performed with one touch. Workability is improved.

[0048]

As described above, according to the present invention, the terminal on the equipment side is inserted into the through-hole of the device body, and the wiring is inserted into the through-hole, whereby the wiring is formed by the press-contact body in the through-hole. Since the terminals are pressed into contact with each other, highly reliable wiring connection can be performed by simple operation without soldering.

Also, by mounting the mounting body to the connecting body,
The pressing body pressed by the mounting body is displaced, and the wiring is pressed against the terminal, so that highly reliable wiring connection can be performed by a simple operation without soldering. In addition, since the connection can be easily released by removing the connecting body, the maintenance and handling are excellent. In particular, when a small device having many connection terminals protruding at a small interval is arranged side by side and mounted on a panel, the wiring connection processing can be easily and quickly performed in dense wiring, The function of the present invention can be exhibited particularly effectively.

Further, since the wires inserted into the mounting body can be locked and held, when a plurality of wirings are inserted into one mounting body and mounted on the connecting body, the operation can be performed without dropping the wires, and the handling is easy. It will be excellent.

Further, since a guide is provided inside the through hole of the connector to restrict the tip of the inserted wire from entering the terminal insertion portion, the wire is once connected and then separated for maintenance or the like. When connecting again, it is possible to prevent the wiring from being hooked at the tip of the terminal reinserted into the through hole of the connecting body, and the wiring deviates from the initial position and does not contact the terminal correctly when reinserted Such a situation can be eliminated, and the reliability can be further improved.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a device and a wiring connection device used for the device as viewed from the rear.

FIG. 2 is a perspective view seen from the rear of the device connected by wiring.

FIG. 3 is an exploded perspective view of the wiring connection device.

FIG. 4 is an exploded perspective view showing a disassembled state of a main part of the wiring connection device and an assembled state.

FIG. 5 is a vertical sectional side view showing a first half of a wiring connection operation procedure.

FIG. 6 is a vertical sectional side view showing a middle of a wiring connection operation procedure.

FIG. 7 is a longitudinal sectional side view showing a state where wiring connection is completed.

FIG. 8 is a front perspective view of a usage example.

FIG. 9 is a view from the back of the usage example.

FIG. 10 is an exploded perspective view showing an example of another embodiment.

FIG. 11 is a vertical sectional side view of an applied example.

FIG. 12 is a perspective view showing an example of another embodiment.

FIG. 13 is a perspective view from the back side of a general example in which switches are mounted in parallel.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Device 2 Case 4 Connection terminal 5 Lead wire 5a Core wire 6 Socket 7 Cover 8 Through hole 11 Contact piece 15 Lead wire insertion hole 16 Tongue piece 20 Guide

Claims (9)

[Claims] An apparatus body having a through hole which can be connected to a device and in which a terminal on the device side and a wiring to be connected thereto can be inserted in the connected state, and a through hole formed by the device body. And a press-contact body displaceably disposed so as to press the wire against the terminal. 2. The apparatus according to claim 2, wherein the apparatus body comprises: a connecting body having the through hole and connected to the device; and a mounting body mounted on the connecting body. 2. The wiring connection device according to claim 1, wherein the press-contact body is displaceable by a mounting operation, and the press-contact is performed by the displacement. 3. The mounting body has a through-hole into which the wiring can be inserted, and can be temporarily mounted on the connecting body, and the wiring is mounted in a temporarily mounted state of the mounting body with respect to the connecting body. The press-contact body can be displaced by inserting the mounting body from the provisional mounting position to the full mounting position in this inserted state by inserting the mounting body into the through-hole of the connecting body through the through-hole of the body. The wiring connection device according to claim 2. 4. The wiring connection device according to claim 3, further comprising a holding portion that elastically locks and temporarily holds the inserted wiring in a through hole of the mounting body. 5. The press-contact body includes: a press-contact portion located in the through-hole; and an operation portion located outside the through-hole. 5. The wire connection device according to claim 2, wherein the pressed portion is displaced by being pressed, and the wire is pressed against the terminal at the displaced pressed portion. 6. The press-contact portion, wherein the press-contact member is swingably held by the connecting member, and the operating portion is pressed by the mounting member as the mounting member is mounted on the connecting member. 6. The wiring connection device according to claim 5, wherein the wire swings and displaces in the through hole of the connecting body to press the wiring against the terminal. 7. A guide according to claim 2, wherein a guide is provided inside the through-hole of the connecting body to restrict the tip of the inserted wiring from entering the terminal insertion portion. The wiring connection device as described in the above. 8. The apparatus according to claim 1, wherein said press-contact body is integrally formed with said apparatus body, and is displaced so as to elastically deform in said through-hole to press said wiring against said terminal.
3. The wiring connection device according to claim 1. 9. An apparatus body having a plurality of through holes which can be connected to an apparatus and in which a terminal on the apparatus side and a wiring to be connected thereto can be inserted in this connected state, and A press contact body comprising a plurality of press contact portions that can be inserted into each of the holes and an operation portion that integrally connects the press contact portions, wherein the operation portion is operated to pass each of the press contact portions through a respective through hole. A wiring connecting device for displacing each of the wirings to a corresponding terminal within the wiring and pressing the wiring to each other.