JPH0449230B2 - - Google Patents

Description

[Detailed description of the invention] [Object of the invention] (Industrial application field) The present invention is directed to the use of an automatic screw tightening machine when fixing electric wires to terminals of electrical equipment with screws on an electrical equipment assembly line. The present invention relates to a wiring jig that enables wiring.

(Prior Art) For example, when assembling a watt-hour meter, there is a task of fixing electric wires to terminals with screws. This work involves inserting a screw into the annular part of the tip of the electric wire that has been bent into an annular shape in advance, and then screwing and tightening this screw into the terminal. Since the wires are often bent and the position of the annular part at the end of the wire cannot be determined, automatic screw tightening machines cannot be used, and this work has traditionally been done manually.

(Problems to be Solved by the Invention) As described above, when assembling electrical equipment, the work of fixing electric wires to terminals with screws has conventionally been done manually.

The present invention was developed in view of the above-mentioned problems, and is intended to perform the work of fixing electric wires to terminals with screws using an automatic screw tightening machine.

[Structure of the invention]

(Means for Solving the Problems) The present invention relates to a connection jig 11 used when fixing an electric wire 4 to a terminal 3 of an electrical device 1 with a screw 5, and a jig for the upper part of the terminal 3. A main body 12 is formed, and an engaging part 14 is formed on this jig main body 12 to engage with a part of the electrical equipment 1 from above to position the jig main body 12 above the terminal 3. A vertical through hole 15 is formed in the main body 12 at a position relative to the terminal 3 to fit and position the tip end of the electric wire 4, and a notch 16 through which the electric wire 4 is inserted into the side of the through hole 15. It is formed along the length direction of the through hole 15.

(Function) When the connecting jig 11 of the present invention engages the engaging portion 14 with a part of the electrical equipment 1, the jig main body 12 is positioned above the terminal 3 of the electrical equipment 1, and the jig main body 12 is positioned above the terminal 3 of the electrical equipment 1. When the through hole 15 is placed on the top of the terminal 3 and the tip of the electric wire 4 is fitted from above through the notch 16 through the through hole 15, the tip of the electric wire 4 is positioned on the top of the terminal 3, and the screw 5 When the jig main body 12 is moved upward after fixing the tip of the electric wire 4 to the terminal 3 with
It comes off below.

(Example) An example of the wiring jig of the present invention will be described with reference to the drawings.

In FIGS. 1 and 2, reference numeral 1 denotes a watt-hour meter as an electrical device that is being assembled, and this watt-hour meter 1 has a case body 2 with an open surface.
A plurality of terminals 3 together with a plurality of parts not shown inside.
are provided, and a predetermined electric wire 4 is connected to each terminal 3.
The distal end portion of is fixed by a screw 5 shown in FIG. As shown in FIG. 4, each terminal 3 is supported by a terminal block 6, and the tip of each electric wire 4 is bent in advance into an annular shape to form an annular portion 4a.

Reference numeral 11 is a wiring jig, and this wiring jig 11 is
The plurality of terminals 3 are integrally molded from synthetic resin.
The gripping parts 1 are attached to both ends of the jig main body 12 relative to the upper part of the jig body 12.
3 are arranged in series, and an L-shaped engagement groove 14 is provided on the lower surface between the grip part 13 and the jig main body 12 as an engagement part that engages with the corner edge part of the case body 2 of the electrical equipment 1. A vertical through hole 15 is formed in the jig main body 12 at a position relative to each terminal 3, and a notch 16 is formed in the vertical direction on the side of each through hole 15 on the electric wire 4 side. It was formed. In addition, as shown in FIG. 3, each through hole 15 has a diameter that changes at the middle part and has a slightly smaller diameter at the lower part.

With this configuration, the electricity meter 1
When assembling, when fixing a predetermined electric wire 4 corresponding to a plurality of terminals 3 with screws 5, hold the grip part 13 of the wiring jig 11 and insert the engagement groove 1 on the lower surface of the
4 to the corresponding corner edge of the case body 2 of the electricity meter 1.

Then, as shown in FIG. 4, the jig main body 12 is positioned above the terminal 3 in the case body 2, and each through hole 15 of the jig main body 12 is located above the terminal 3, so that this jig A notch 1 is provided in each through hole 15 of the main body 12.
When the annular portion 4a at the tip of the corresponding electric wire 4 is fitted from above through the terminal 6, the annular portion 4a is positioned above the terminal 3.

Therefore, in this state, when the screw 5 is inserted vertically from above along the central axis of the through hole 15, the screw 5 passes through the annular portion 4a at the tip of the electric wire 4 and enters the not-shown screw hole of the terminal 3. The annular portion 4a of the electric wire 4 can be screwed onto the terminal 3 using the screw 5 using an automatic screw tightening machine.

Then, after fixing the annular part 4a of each electric wire 4 to the corresponding terminal 3 with the screw 5, when the jig main body 12 is moved upward by holding the grip part 13, the screw 5 and the electric wire 4 are fixed to the through hole 15 and the notch. 16, the wiring jig 11 can be removed from the watt-hour meter 1 as it is.

〔Effect of the invention〕

As described above, in the wiring jig of the present invention, when the engaging portion is engaged with a part of an electrical device, the jig body is positioned above the terminal of the electrical device, and the through hole of the jig body is aligned with the terminal. Since it is located at the top of the terminal, by passing the notch through this hole and fitting the tip of the wire from above, the tip of the wire can be positioned at the top of the terminal. hand,
It is now possible to fix the tip of the wire to the terminal with a screw, and then when the wiring jig is moved upward, the screw and wire will come off below the through hole and notch, so leave the wiring jig as it is. Can be removed from electrical equipment.

[Brief explanation of the drawing]

The drawings show one embodiment of the wiring connection jig of the present invention, in which Fig. 1 is a plan view in use, Fig. 2 is a side view thereof, and Fig. 3 is a cross-sectional view taken from - of Fig. 2. FIG. 4 is a diagram of the state in which FIG. 3 is used. 1... Electric energy meter as electrical equipment, 3... Terminal, 4
...Electric wire, 5...Screw, 11...Jig for connection, 12...Jig main body, 14...Engagement groove as an engagement part, 15...Through hole, 16...Notch part.

Claims (1)

[Scope of Claims] 1. A connection jig used for fixing an electric wire to a terminal of an electrical device with a screw, which comprises a jig body for the upper part of the terminal, and a jig body for attaching the wire to the terminal of the electrical device. An engaging part that engages from above to position the jig body above the terminal is formed, and the top and bottom of the electric wire are fitted and positioned at the position of the jig body relative to the terminal. 1. A wire connection jig, characterized in that a through hole is bored in the direction of the wire, and a cutout portion through which the electric wire is inserted is formed along the length of the hole at the side of the through hole.