JPS608385Y2 - Insertion and extraction tools for multi-pole connectors - Google Patents

Description

[Detailed description of the invention] This invention improves the efficiency of inserting and extracting a multi-pole connector that is a pair of plug and socket, and
The present invention relates to an insertion/extraction tool for multi-pole connectors to ensure stable quality of contact parts during connection.

Multi-pole connectors, which are divided into a cap (socket) side and a plug side, each consisting of a resin housing part and a metal contact part, are generally used for connecting electrical circuits. Conventionally, the insertion and removal of caps and plugs has not been performed using tools, but rather has been carried out by an operator using the pushing or pulling force of both hands.

First, the structure of the multi-pole connector will be explained with reference to FIGS. 1 to 4.

In these figures, 1 is a multi-pole connector, which includes a cap housing 2 made of resin such as nylon, and a plug housing 3 made of the same material as the cap housing 2, with both sides of the cap housing 2 and the plug housing 3 Locking catch 2a and locking latch 3 on the surface
a are each formed in a protruding manner, and these are engaged when the cap housing 2 and the plug housing 3 are completely fitted together.

Tabs 2b are provided on both sides of the cap housing 2 and stand up toward the upper and lower surfaces, and the plug housing 3
Strain reliefs 3b are provided on the upper and lower surfaces, respectively.

A cylindrical socket contact 6 is loaded into the contact hole 2c of the cap housing 2 and locked by a locking lance 6c and a contact stop 6d.

The wire 4 is connected to the socket contact 6 with the core wire 4a at the tip of the wire 4 being crimped with the core wire crimping portion 6a of the socket contact 6, and with the insulation coating of the wire 4 being held down by the insulation coating holding portion 6b. has been done.

A pin contact 7 is provided in the contact hole 3c of the plug housing 3 with a locking lance 7c and a contact stop 7.
It is locked and loaded at d.

The electric wire 5 is connected to the pin contact 7 with the core wire 5a at the tip of the electric wire 5 being crimped by the core wire crimping part 7a of the pin contact 7, and the insulation coating of the electric wire 5 being held down by the insulation coating holding part 7C. has been done.

When the cap housing 2 and the plug housing 3 are fitted together, the tip 7e of the pin contact 7 is inserted into the socket contact 6.

In the multi-pole connector as described above, the tip 7e of the pin contact 7 and the socket contact 6 are fitted together by providing a slit 6e in the cylindrical socket contact 6 to prevent poor contact between the contacts. This increases the holding force due to elastic force.

Therefore, when inserting or pulling out a multi-pole connector, a pressing force or pulling force of approximately 0.8 kg is required per set of contacts.

Next, with reference to FIG. 5, a conventional method of inserting and pulling out a multi-pole connector without using a tool by using pushing force or pulling force by an operator's hand will be described.

In FIG. 5, 2 is a cap housing, and 3 is a plug housing, each of which has a locking catch 2a and a locking latch 3a on both sides thereof.

Insertion and withdrawal of the multipolar connector 1 are performed by holding the side surface of the cap housing 2, the side surface of the plug housing 3, and the locking latch 3a with fingers of the hand and applying a pressing force or a pulling force.

However, if a multi-pole connector with one contact is inserted or pulled out, a pushing force or pulling force of about 12 to 9 is required. This causes great worker fatigue and poor work efficiency.

In addition, insertion and withdrawal must be performed in the direction that the contacts on both the cap housing and plug housing are aligned in a straight line, but when inserting or withdrawing a multi-pole connector that requires large pushing or pulling force, it may be necessary to force the insertion or withdrawal. Or, due to pulling out, poor contact often occurs at the connecting portion of the contact.

This idea was created in view of the above-mentioned circumstances, and allows both the insertion and removal of multi-pole connectors to be done efficiently and easily with a small amount of force that provides stable quality without causing poor connection of the contacts. It is an object of the present invention to provide an inserting/extracting tool for a multi-pole connector that can be operated.

An embodiment of this invention will be described below with reference to FIGS. 6 to 11.

In FIGS. 6 to 11, reference numeral 11 denotes a handle with a grip portion 11a having a substantially U-shaped cross section.The handle 11 has an upper portion 11b bent horizontally at an obtuse angle with respect to the grip portion 11a, and an upper end portion of the handle 11. It is bent at right angles to both sides horizontally.

Reference numeral 12 denotes a rotating lever, and the rotating lever 12 has a grip portion i2a formed in a substantially U-shape in cross section, passes through a corner of the handle 11, is pivotally attached to the handle 11 by a pivot shaft 13, and is pivoted by a spring 14. The grip portion 11 of the handle 11 is biased clockwise in FIG.
a and the upper end of the rotating lever 12 is connected to the pivot 1.
It is pivoted at 6.

The tip of the connecting metal 15 is pivotally connected to a mounting metal 18 via a pivot 17.

The mounting bracket 18 is formed by bending a band-shaped plate into a T-shape in plan view, and a cap 20 is fixed to the center with studs 21. A notch is provided in each upper part.

A threaded end portion of a guide rod 22 passes through both ends of the fitting 18, and is fastened with a nut 23 and a locking nut 24.

Further, a base 25 is fixed to the upper surface of the upper part 11b of the handle 11, and upwardly bent upright pieces 25a are formed on both sides of the distal end of the base 25 so as to face each other.

A guide bar 26 is fixed to the lower surface of the distal end of the base 25, and on both sides of the guide bar 26, a distal end upright part 26a and a distal upright part 26b are formed on both sides of the upright piece 25a.
The upright parts 26a and 26b are respectively formed with insertion holes 26c and 26d, and the guide bar 26 has a guide bar 26 protruding from the tip of the base 25 at the widthwise center of the bottom thereof. A protruding piece 26e is formed.

A slit portion 29 is formed between the upright portion 26a on the tip side of the guide bar 2''6 and the upright piece 25a of the base 25, and the guide bar 22 is formed in the insertion holes 26C and 26d of the guide bar 26.
is slidably inserted.

Furthermore, a pusher metal 27 having an opening in the center and having a substantially horseshoe shape is passed through the threaded portion on the distal end side of the guide rod 22, and is removably fastened with a flanged nut 28,30.

To insert a multi-pole connector using the tool configured as described above, proceed as follows.

First, as shown in FIGS. 8 and 9, the cap housing 2 and plug housing 3 of the multi-pole connector 1 are slightly inserted and placed on the base 25.
5a and the cap 20, the tab 2b of the cap housing 2 and the strain relief 3b of the plug housing 3
is positioned so that the locking latch 3a of the plug housing 3 is in the vertical direction.

In this case, although the plug housing 3 is located on the base 20 side in FIGS. 8 and 9, the cap housing 2 may be located on the base 20 side.

Next, when you put your hands on the grip part 11a of the handle 11 and the grip part 12a of the rotation lever 12 and rotate the rotation lever 12 counterclockwise against the spring 14, the upper end of the rotation lever 12 A large rotational force generated by the lever principle using the pivot 13 as a fulcrum is transmitted to the mount 18 via the pivot 16, the link 15, and the pivot 17.

Two guide rods 22 attached to both ends of the mounting bracket 18 slide through the insertion holes 26c and 26d of the guide bracket 26, so that the guide bracket 26 fixed to the tip of the base 25 can be erected. It advances horizontally in the direction approaching the part 26b side.

Therefore, when the multi-pole connector 1 is inserted, the wire 5 insertion side of the plug housing 3 contacts the base 20, the tab 2b of the cap housing 2 contacts the upright piece 25a of the base 25, and when further pressed, both the housings 2,
3 is fitted into the predetermined position, and the insertion work is completed.

In this case, when the multi-pole connector 1 to be inserted is placed on the base 25 in the opposite direction to that described above, the wire 4 insertion side of the cap housing 2 is placed on the base 20, and the strain relief 3b of the plug housing 3 is placed on the base 25. They are pressed while being in contact with the upright pieces 25a, respectively.

After the insertion of the multipolar connector 1 is completed as described above, if the grip force is released from the rotating lever 12, the rotating lever 12 will rotate clockwise due to the restoring elastic force of the spring 14.
The cap 20 moves back and comes to rest with the flanged nut 30 for fastening the pusher 27 provided at the tip of the guide rod 22 in contact with the upright portion 26a on the tip side of the guide bar 26.

In addition, in order to pull out the multi-pole connector 1 with the cap housing 2 and plug housing 3 fitted together during repair, etc.
Do as follows.

First, as shown in FIGS. 10 and 11, the fitted multi-pole connector 1 is assembled so that the strain relief 3b of the plug housing 3 is formed by the upright piece 25a of the base 25 and the upright portion 26a of the guide bar 26. It is inserted into the slit 29 and placed in the center opening of the pusher 27, and then placed on the base 25.

Next, locking latch 3 above plug housing 3
Press a vertically downward with your fingers as shown by arrow A in FIG. 10 to release the locking latch 3a from the locking catch 2a of the cap housing 2.

In this case, the lower locking latch 3a is
Since the upper and lower locking latches 3a and the locking catch 2a are brought into contact with the protruding piece 26e, the engagement between the upper and lower locking latches 3a and the locking catch 2a is simultaneously released.

While pressing the locking latch 3a, use your other hand to hold the handle 11.
When the grip portion 11a of the rotary lever 12 and the grip portion 12a of the rotary lever 12 are grasped and the rotary lever 12 is rotated in the counterclockwise direction in FIG. The force transmitted to the guide rod 18 is transferred to the guide rod 22 by sliding the guide rod 22 through the insertion holes 26c and 26d of the guide metal 26.
The pusher 27 attached to the tip of the guide bar 27 horizontally moves forward, that is, in the direction away from the guide bar 26.

Therefore, the multi-pole connector 1 to be pulled out is
7 moves forward, this causes the cap housing 2 to move forward.
At the same time, the strain relief 3b of the plug housing 3 contacts the upright portion 26a of the guide bar 26.

Further, as the pusher 27 moves forward, the plug housing 3 is prevented from moving forward and only the cap housing 2 moves forward.
It is divided into the plug housing 3 side and the plug housing 3 side, and the pulling operation is completed.

After the multi-pole connector 1 has been pulled out, the rotation lever 12
When the grip force is released, the pivoting lever 12 rotates clockwise due to the elastic force of the spring 14, and the pusher 27 provided at the tip of the guide rod 22 retreats to close the flange for fastening the pusher 27. The nut 30 is attached to the upright portion 26a of the guide bar 26 on the tip side.
It comes to rest in contact with.

As explained above, according to this invention, the rotating lever 12 pivotally attached to the handle 11 applies the principle of leverage to generate a large force with a small grip force when gripping the handle 11 and the rotating lever 12. This force is applied to horizontal movement by sliding two mutually parallel guide rods 22 connected to the mounting bracket 18 through the insertion holes 26c and 26d of the guide bracket 26 fixed to the handle 1 via the base 25. , a pulling force is generated between the pusher metal 27 provided at the tip of the guide rod 22 and the guide metal 26, and the base 25 fixed to the base 20 fixed to the mounting metal 18 and the handle 11 is Since a pressing force is generated between the upright piece 25a or the base 20 and the guide metal 26 to insert and extract the multi-pole connector, the insertion and extraction operations can be performed with one type of tool. In addition, the insertion and withdrawal operations can be performed with a small amount of force, resulting in less worker fatigue and efficiency.In addition, each contactor moves in a straight line for insertion and extraction.
It is possible to provide an insertion/extraction tool for a multi-pole connector that can be pulled out without causing quality problems such as poor connection of contacts.

[Brief Description of the Drawings] Figure 1 is a perspective view of an example of a multi-pole connector in a separated state;
Figures 2 and 3 are a plan view and a front view of the mated state, Figure 4 is a sectional view taken along the line IV-IV in Figure 2, and Figure 5 is the insertion and withdrawal operations of a conventional multi-pole connector. A perspective view showing
Fig. 6 is a partially cutaway front view of a multi-pole connector insertion/extraction tool according to an embodiment of the invention, Fig. 7 is a plan view of the same, and Figs. 8 and 9 are embodiments of the invention. A front view and a plan view showing the insertion procedure of the insertion and extraction tool according to
FIG. 10 and FIG. 11 are a front view and a plan view showing the same drawing procedure. DESCRIPTION OF SYMBOLS 1... Multi-pole connector, 2... Bent cap housing, 3... Plug housing, 11... Bent handle, 12... Rotating lever, 13... Bent part. axis, 1
8...Song mounting bracket, 20...Base, 22...Commercial rod, 25...Song base, 25a...Upright piece,
26...Commercial money, 26a, 26b...Upright part, 26c, 26d...Bend/insertion hole, 27...Press metal. Note that the same reference numerals in the figures indicate the same or corresponding parts.

Claims (1)

[Scope of utility model registration request] A guide bar 26 is fixed to a base 25 provided at the upper part of the handle 11 so as to protrude upward, and two mutually parallel guide bars 22 are slidably inserted into the guide bar 26 parallel to the upper surface of the base 25. , the distal end of the guide rod 22 is connected to the upper end of the rotating lever 12 pivotally connected to the handle 11 via the fitting 18;
Fix the pusher 27 to the tip of the guide rod 22, and attach the mounting bracket 18.
When the cap 20 is fixed to the base 25 and the multipolar connector 1 is placed on the base 25, a pulling force is applied between the pusher 27 and the guide bar 26.
An insertion/extraction tool for a multi-pole connector, characterized in that a pressing force is generated between the two by the rotation of the rotation lever 12.