JPH024477Y2 - - Google Patents

Description

[Detailed Description of the Invention] (a) Field of Industrial Application This invention relates to a manual pressure welding tool used to connect a covered electric wire to a connect pin by pressure welding in a covered state.

(b) Prior Art Conventionally, when connecting control devices with each other using a cable, a covered electric wire is connected to a connect pin formed as a connecting element at the end of the cable by pressure welding while leaving the covered wire in the covered state.

(c) Problems to be solved by the invention Conventionally, a stationary hand press machine or the like was used to press the insulated wire onto the connect pin as described above. It is large in shape and is inconvenient to carry, and it also has the problem that it is not easy to perform pressure-welding operations in the hand.

The object of this invention is to provide a manual pressure welding tool that can easily press a covered wire to a connect pin not only on a desk but also in the hand.

(d) Means for solving the problem This invention forms a pedestal by adding a step to one end of a grippable rectangular base, and a pedestal is formed on the upper surface side of the base opposite to the pedestal. A supporting member is fixed with a surface facing the pedestal, and one end of an operating lever that is biased upwardly by a spring and manually operated downward is pivoted at the upper part of the opposing surface of the supporting member. The free end of the operating lever is extended to the other end of the base, and a height-adjustable stopper for the free end of the operating lever is provided on the other end of the base. Along with movably supporting the
connecting an upper end of the plunger to the operating lever;
Fix a pressure welding punch to the lower end of the plunger,
The manual pressure welding tool is characterized in that a connector presser for pressing the connector toward the pedestal side is disposed at the back of the pedestal.

(E) Function According to the manual pressure welding tool of this invention, a pressure welding connector having a connect pin is placed on the above-mentioned pedestal, its upper end is temporarily fixed with a connector holder, and then a covered electric wire is placed on the connect pin. When the free end of the operating lever is moved downward, the covered wire can be connected to the connecting pin using the press-connecting punch at the lower end of the plunger.

(f) Effects of the invention As a result of the above, according to this invention, both the base and the operating lever are large enough to be grasped, so such pressure contact operations can be easily performed not only on a desk but also in the hand. It has the effect of

Furthermore, since the pressure welding connector can be temporarily fixed with the connector holder, the pressure welding connector will not be accidentally dropped during handheld pressure welding work, making the work easier and improving work efficiency.

Furthermore, a stopper is vertically installed on the other end of the base so that the height can be adjusted, and this stopper is configured to restrict the downward stroke of the free end of the operating lever, so that the insulated wire can be pressed down against the insulation displacement connector. The force can be finely adjusted, and the covered wire can be connected to the connecting pin in an optimal pressure contact state.

In addition, a step is added to the base to form a pedestal,
In addition, since the support member is attached to the base, the structure can be simple and compact.

(g) Example of the invention An example of the invention will be described below in detail based on the drawings.

The drawings show a manual pressure welding tool, and in FIGS. 1 and 2, 1 is a base made of metal or hard synthetic resin, and this base 1 is attached to one end of a rectangular body (see FIG. A pedestal 2 is formed with a step on the left end side), and a V-groove 2a for centering is formed in the center of the pedestal 2.

Reference numeral 3 denotes a supporting member having an inverted gate-shaped cross section fixed on the above-mentioned base 1 using a set bolt 4, and this supporting member 3 forms a predetermined working space α between it and the above-mentioned pedestal 2, and This is a fixed member having a surface 5.

At the upper part of the opposing surface 5 of the support member 5, one end of an operating lever 7 having a gate-shaped cross section is pivotally supported via a support shaft 6, and a lower end 8a of a spring 8 whose central portion is wound around the support shaft 6. By abutting the upper end 8b against the inner surface of the bottom wall of the support member 3, and the upper end 8b against the inner surface of the top wall of the operating lever 7, the operating lever 7 is always biased upward.

In addition, the free end of the operating lever 7 is extended to the other end of the base 1 (the right end in FIG. 2), and
A stopper 11 consisting of a nut 9 and a threaded rod 10 is installed at the other end of the base 1 so that its height can be adjusted.

This stopper 11 is a stopper for finely adjusting the pressing force to an appropriate level by regulating the downward stroke of the free end of the operating lever 7.

Furthermore, a horizontal shaft 12 is horizontally mounted above the pedestal 2 of the gate-shaped operating lever 7, and this horizontal shaft 12
A plunger 13 whose upper end is loosely fitted is provided, and the lower end of the plunger 13 is made to pass through a guide hole 14 formed at the opposing surface 5 position of the supporting member 3 and protrude downward from the opposing surface 5. When lowering, the horizontal shaft 12 is connected to the upright walls 3a, 3 of the support member 3.
The plunger 13 is configured to move downward along U-grooves 14, 14 formed in a, and the plunger 13 moves downward along with the downward movement of the horizontal shaft 12.

In addition, the center of the lower end of the plunger 13 described above is cut by milling or the like, and this cut portion 13a (fourth
(see figure), a pressure welding punch 17 is fixed using a locking pin 15 and a locking shaft 16.

As shown in FIGS. 3 and 4, this pressure welding punch 17 has its lower surface formed in an arc shape corresponding to the outer circumferential surface of the covered wire 18, and also serves as a wire coupling portion of the connect pin 20 in the pressure welding connector 19 (so-called socket). Grooves 22, 22 opposite to 21, 21;
A pair of wire holding parts 2 in the connect pin 20
This is a punch having a stepped pressing part 24 that presses the parts 3 and 23.

The pressure welding punch 17 also has through holes 25 and 2 into which the aforementioned locking pin 15 and locking shaft 16 are inserted.
6 is formed.

Furthermore, as shown in FIG. 2, a connector is provided between the base 1 and the support member 3, which presses the upper end of the pressure connector 19 and prevents it from floating up. A presser foot 27 is clamped.

This connector holder 27 is formed using a spring, and the center of the connector holder 27 is bent at a substantially right angle in the work space α, and the bent lower end is placed above the pedestal 2 at a predetermined interval. are doing.

More specifically, the second
The horizontal portion in the figure is inserted into a U-shaped groove (not shown) formed on the upper surface of the base 1.

Moreover, the manual pressure welding tool made up of the above-mentioned elements is set to have a size that allows it to be gripped as a whole.

The illustrated embodiment is configured as described above,
The action will be explained below.

Insert the pressure connector 19 onto the pedestal 2 of the base 1 from either direction of arrows a and b in FIG.
As shown in the figure, the pressure connector 19 is held between the pedestal 2 and the connector holder 27, and the center of the connect pin 20 is aligned with the V-groove 2a. 2
When the covered electric wire 18 is placed facing the wire 0 and held in this state, and the operating lever 7 is pushed down against the spring 8 using the above-mentioned support shaft 6 as a fulcrum as shown by the imaginary line in FIG. 13 and the pressure welding punch 17 at its lower end move downward, so that the covered wire 18 connects to the wire coupling portion 2 at the connect pin 20.
The coating is removed at the U slot portions 1 and 21,
The core wire 28 of the insulated wire 18 is exposed, and at the same time the core wire 28 is press-connected to the wire coupling portions 21, 21, the stepped pressing portion 24 of the press-contact punch 17
A pair of wire clamping parts 23 of the connect pin 20,
23 is deformed into a curved shape, and the above-mentioned covered electric wire 18 is held between the holding parts 23 and 23 from the outer periphery of the covering material.

After this pressure welding operation, the operating lever 7
When the pressing force is released, the connector presser 2
7 is holding down the upper end of the pressure welding connector 19, the above-mentioned operating lever 7 is restored to its original state by the restoring force of the spring 8, and at the same time, the plunger 13
The pressing punch 17 also moves upward and returns to its original position.

By the way, when the operating lever 7 is pressed down, the free end of the operating lever 7 is restricted from moving downward beyond a preset position by the stopper 11. Fine adjustment can be made, and the covered wire 18 can be connected to the connecting pin 20 in an optimal pressure-connected state.

Moreover, since both the base 1 and the operating lever 7 are of a size that allows them to be grasped, such pressing operation can be easily performed not only on a desk but also in the hand.

FIG. 5 shows another embodiment, in which the base 1 has a pedestal 2.
A two-row housing-shaped pressure welding connector (not shown) with a height of
In order to correspond to this, a spacer 31 having a receiving surface 30 is formed on this pedestal 2 so as to be removably fitted by dovetail fitting means, etc., and when the spacer 31 is not used, For pressure welding connectors, and when the spacer 31 is mounted on the pedestal 2, the
It is configured so that it can be selectively used as a row housing-shaped pressure contact connector 19 (see FIG. 4).

Hereinafter, also in the embodiment shown in FIG.
Since the functions and effects are almost the same as those of the embodiment described in detail above based on FIG. 2, etc., the same parts in FIG. 5 as in FIG. do.

[Brief explanation of the drawing]

The drawings show one embodiment of this invention, in which Figure 1 is a front view of a manual pressure welding tool, Figure 2 is a sectional view of the manual pressure welding tool, Figure 3 is a perspective view of a pressure welding punch, and Figure 4 is a front view of the manual pressure welding tool.
The figure is a partially exploded perspective view showing the state of use, and FIG. 5 is a sectional view showing another embodiment of the manual pressure welding tool. 1... base, 2... pedestal, 3... support member,
5...Opposing surface, 7...Operation lever, 8...Spring, 11...Stopper, 13...Plunger,
17...Punch for pressure welding, α...Working space, 27...
...Connector holder.

Claims (1)

[Claims for Utility Model Registration] A pedestal is formed by adding a step to one end of a grippable rectangular base, and a surface facing the pedestal is formed on the upper surface side of the base that faces the pedestal. one end of an operating lever that is biased upwardly by a spring and is manually operated downward is pivotally supported at the upper part of the opposing surface of the supporting member, and the free end of the operating lever is attached to a base. A stopper for the free end of the operating lever is provided on the other end of the base, and the stopper is vertically movably supported on the opposite surface of the support member. A manual pressure welding tool, wherein the upper end of the plunger is connected to the operating lever, a pressure welding punch is fixed to the lower end of the plunger, and a connector holder is provided at the back of the pedestal to press the connector toward the pedestal side.