SU1663674A1 - Device for removing insulation and connecting wires by twisting - Google Patents

Abstract

The invention relates to electrical engineering. The aim of the invention is to expand the functionality while maintaining the dimensions of the device. The device consists of a housing 12 in which a gear arc 4 is installed with a handle 5 and a return spring 8 and a gear gear consisting of gears 6 and 7 and a core 2 fixation device equipped with external teeth. A knife 23 is mounted on the handle 5, and a step knife 22 is mounted on the housing. The device is provided with an elastic tape for fixing on the hand and holes 18 for stationary fastening. The ends of the wires cut and stripped with a knife 22 and 23 are inserted into the core 2 of the fixation device. When pressing the handle 5, the core 2 is rotated through gears 6 and 7 and the wires inserted into it are twisted. 1 hp f-ly, 5 ill.

Description

1

The invention relates to electrical engineering and can be used to connect wires twisted in radio installation and electrical work.

The aim of the invention is to extend the functionality while maintaining the dimensions of the device,

FIG. 1 shows a section A-A in FIG. figure 2 - section bb in fig 1; FIG. 3 shows a section of the core in two projections; FIG. 4 shows a device mounted on a table (view 8 in FIG. 1); Fig. 5 shows the isolating and cutting ends of the wires.

The device consists of a twist-wire fixation unit, an actuator that rotates the fixed wires, a device fixing unit in a stationary position, and an insulation stripping unit and cutting the ends of the wire.

The fixing unit of the wires consists of a tube 1 with a socket and a core 2. The tube 1 is fixed motionless with the help of a nut 3 (figure 2).

The drive assembly serves to rotate the fixed wires.

It consists of a gear arc 4 (Fig. 1) with a handle 5 for bringing it into rotation around axis 0 and two intermediate gears 6 and 7 fixed on the same axis. Gear 6 is in engagement with the arc 4, and gear 7 - with the toothed core 2. If necessary, gear 7 can be provided with a ratchet device (not shown). The gear arc 4 is spring-loaded with a return spring 8. The disc 9 with cutouts serves as an arc stop.

The elastic tape 10 is designed to fix the device in a predetermined position relative to the palm, which frees the fingers from having to hold the device and allows them to perform all the usual operations associated with the installation of an electrical circuit. The wire fixing unit and the actuator are located between two plates 11, which are fastened with screws to the split housing 12.

The core 2 of the fixing unit (FIG. 3) has along the axis a through channel 13 with a slot 14 with a width of more than one and less than two diameters of twisted wires.

In order for the pair of wires inserted into the receiving opening of more than two diameters to easily get into the slot of less than two diameters, at the end of the core, the slot has an extension 15, exceeding the diameter of the opening of the tube 1 in the slot. It is a hole larger than

two wire diameters. The teeth 16 are cut outside on the core 2.

The fixing unit of the device in a stationary position is intended for mounting on the table. For this, the device has a removable axis 17 (Fig. 2), and a through hole 18 (Fig. 1) is provided in the housing. Fixing the stand 19 on the table (FIG. 4), the device case inserts

0 between the uprights 20, the axle 17 is passed through the eyes of the uprights and the through hole 18 in the housing, then the nut is tightened without tightening. A comfortable position for the device is attached to the lining 21.

5 The isolation removal unit and the cutting of the excess lengths of the stripped ends of the wire consists of two knives. The stationary knife 22 (Fig. 5) is mounted in the housing 12, the movable knife 23 is attached to the handle 5. One of the legs, for example the stationary knife 22, is stepped so that in the depressed position of the handle 5 in the same area between the blades the gap 24 is not less than the diameter of the wire, but

5 is less than the diameter of its insulation, and on the other there is a closing of the knives without a gap.

Depending on the conditions under which the wires are connected, the device is used as follows.

0 To connect the wires in a portable version directly at the work site, the device is taken in the palm of one hand, fingers under the elastic tape 10, so that axis 0 rotates

5 handles were from a little finger. With this arrangement, the fingers of this hand are released to perform the installation of the electrical network. With the other hand they hold the wires.

0 Using knives 22 and 23 in the gap area

24 remove the insulation from the wires. Then

stripped rings of wires are inserted into

receiving opening of the bell tube 1.

Holding the wires near the receiving hole with the fingers of one hand, the palm of the hand and the fingers of the other, squeeze the device so that the handle 5 reaches the stop. A pair of wires, fall into the slot 10 with a width of less than two of its diameter, while the core rotates

0 2 rotates with it. How many turns will make the core, so much turns twist tc wires between themselves. Pulling out the twisted wires from the receiving opening, release the handle 5, which is under

5 by the action of the spring 8 returns to its original position,

Then, if necessary, cutting off the excess length of the ends of the twisted wires with knives 22 and 23 in the area of their closing without clearance.

When connecting wires in stationary conditions (on the table), it is necessary, as indicated above, to fix the device on the table with the aid of a detachable axis 17 and eyes in racks 20 (Fig. 4). Further operations are similar. The cleaned ends are inserted into the receiving opening of the tube 1. Holding the wires near the receiving opening with the fingers of one hand, the other hand is pressed on the handle 5 until failure, after which the twisted wires are removed first, and then the handle is released. Under the influence of the spring 8 oka returns to its original position.

Thus, the proposed device, being small and portable, allows for stripping, cutting and twisting of wires in both portable and stationary versions.

Claims (2)

Invention Formula 1, A device for removing insulation and twisting wires, containing a spring-loaded toothed arc installed in the housing, equipped with a handle, cooperating with a gear, on the output link of which a wire fixation unit is installed, characterized in that, in order to expand its functionality while maintaining dimensions of the device, it is equipped with knives, with one knife located on the handle of a serrated arc and facing the body, and the other knife is located on the body opposite the first with the possibility of interlocking with it, at the same time at least one knife is made stepped from the side of interaction with the wire. 2. Device pop. 1, characterized in that it is provided with an elastic tape fixed on the side surface of the body parallel to the plane of movement of the handle, and holes are made in the body for stationary fastening of the device. ten P 0U9.3. View B (ttfig tj Fy FIG. five