DE19803981B4 - Cable cutter with cutting parts divided into several cutting sections - Google Patents

Abstract

Cable cutter with jointed into several cutting sections cutting jaws, wherein
- The two cutting jaws (6, 7) of two each in their cutting shapes differently shaped cutting sections (10, 11) and (14, 15) are formed, wherein
- on the lower cutting jaw (6) two along the cutting jaws separated by a nose-like projection to the symmetry axis (A) of the cable cutter (1) concave cutting edges (12, 13) are arranged during
- two cutting edges (14, 15) lying one behind the other in the longitudinal direction of the cutting jaws are arranged on the upper cutting jaw (7), of which the rear, the scissors joint (2) adjacent cutting edge (17) to the axis of symmetry (A) of the cable cutter (1) also is concave and formed in a symmetrical arcuate shape and the front, the scissors joint (2) facing away from cutting edge (16) to the symmetry axis (A) is convexly curved

Description

The The invention relates to a cable cutter with in several cutting sections articulated cutting jaws for separating electrical cables of various types Material structure and insulation texture, in the manner of a Pliers made of two two-arm levers that can be swiveled around a hinge pin accomplished is and wherein each one of the lever arms as a handle part and the others of the lever arms as articulated in several cutting sections cutting jaws is trained.

• DE-OS 2910544; DE 195 06 457 A1 ; DE-OS 3105690; DE-GM 8219299; DE-GM 8702959; DE-GM 8706119.

Cable shears, even those with differently shaped cutting edges on the cutting jaws, are known in principle in various designs. See for example:

• DE-OS 2910544; DE 195 06 457 A1 ; DE-OS 3105690; DE-GM 8219299; DE-GM 8702959; DE-GM 8706119.

In particular, here is the file number, DE 195 06 457 A1 , to call. This invention relates to a cable cutter, in particular a cable cutter, for severing cables and insulation sheaths. The cable cutter consists of two equally shaped pliers limbs, which has crescent-shaped cutting sections arranged one behind the other along the longitudinal axis. These are exactly the same for both pliers legs.

The The above-mentioned tools mostly differ from the execution of the pliers-typical elements with regard to the geometry of the cutting jaws, the shape of the cutting edges or the construction the power transmission elements, the known ones for the Determining the functional and usage behavior of such cable cutters are.

So have been used, for example, to cut through multi-core, one or more Wearing insulating coats Electrical cables developed cutting molds and applied, which consists of a front, rectilinear, and a rear, arc extending cutting area exist. The first cutting section is here for the slicing of the insulation sheath determined during the rear, with curved cutting edge provided cutting section for the actual severing of as solid wires or stranded wire to Use arrived electrical conductor wires is created.

Although These well-known forms of scissors cutting demonstrated their practicality have and the bipartite cutting edge shape even at different Cable shapes - Round or Flat cable - one partially applicable applicable Design variant, they are for a variety of cable types when cutting strand-like conductors or solid wires or even to open or cutting the insulation sheaths not in every case equally good use.

One essential, the behavior of such cable shears mitbestimmender Circumstance exists regarding the design of the tool cutting also in it, with their Cutting geometry the use of forces and the closing of the Handle parts or the grip leg adjusting force curve advantageous to influence and idealize. Especially too from this latter requirement for further perfection of this type of tool results in the object and purpose of the present invention.

These Task is to maintain the well-tried bipartite Cutting edge shape the tool cutting such that the opening and Slicing the insulation sheath both flat and round cables with improved cutting effects allows is, so the subsequent, utter or increased effort requiring severing of the cable is also facilitated.

One another part of the task still consists of the handling side Cutting process through improved handling of the scissors to assist in particular the sometimes repeated continuation of the scissors during a cut to simplify and facilitate.

According to the invention this Task with the mentioned in the claims technical Characteristics solved, with expedient units being set forth in the subclaims.

The novel embodiment This cable cutter is characterized by an excellent cutting behavior of any type of cable and can be also easy and easy to handle. This is the use characteristics have been perfected to another.

In the associated Drawing is an embodiment the inventively designed Cable shears and is briefly described as follows:

The Drawing poses in

1 the front view on the cable cutter in partially open condition and in

2 the partial front view of one of the cutting jaws, with inserted in the joint sections torsion spring,
represents.

The cable cutter 1 is in principle known from two in the scissors joint 2 around a hinge pin 3 swiveling two-armed pliers levers 4 . 5 composed, in part as a cutting jaws 6 . 7 and partly as handle parts 8th . 9 are executed.

The cutting jaws 6 . 7 are formed of two each in their cutting edge differently shaped cutting sections, as in 1 can be clearly seen.

The lower cutting jaw 6 carries along the cutting jaw two concave to the symmetry axis A trained cutting sections 10 . 11 , which are designed symmetrically in their concave round shape. The at the cutting sections 10 . 11 trained cutting 12 . 13 are, as is apparent and common practice, provided with a positive cutting angle and can be of different lengths.

The upper cutting jaw 7 in contrast carries along the cutting jaw two cutting sections 14 . 15 with the cutting edges 16 . 17 , of which the rear, the scissors joint 2 adjacent cutting section 14 to the symmetry axis A is also concave and formed with a symmetrical arc shape, while the front, the scissors joint 2 facing away cutting section 15 is formed to the symmetry axis A convexly curved.

The two back, the scissors joint 2 adjacent cutting sections 10 . 14 are appropriate to the axis of symmetry A of the cable cutter 1 arranged symmetrically lying and executed circular arc.

In the area of the scissors joint 2 is after 2 one in correspondingly shaped recesses 18 inserted torsion spring 19 arranged under the spring effect, the two pliers lever 4 . 5 be kept constantly in the open position to those when handling the cable shears 1 to assist with the functions to be performed. When not in use the cable shears 1 is as a tumbler for the pliers lever 4 . 5 a known in its operation locking bolt 20 provided by a sliding head 21 is to be operated.

1

cable cutter

2

scissor joint

3

hinge pins

4

caliper lever

5

caliper lever

6

dies (Bottom)

7

dies (Upper)

8th

handle part

9

handle part

10

cutting section at the lower cutting jaws

11

cutting section at the lower cutting jaws

12

To cut at the lower cutting jaws

13

To cut at the lower cutting jaws

14

cutting section on the upper cutting jaw

15

cutting section on the upper cutting jaw

16

To cut on the upper cutting jaw

17

To cut on the upper cutting jaw

18

recess

19

torsion spring

20

locking bolt

21

sliding button

A

axis of symmetry the cable cutter

Claims (3)

Cable cutter with cutting jaws divided into several cutting sections, whereby - the two cutting jaws ( 6 . 7 ) from two respective differently shaped cutting sections ( 10 . 11 ) and ( 14 . 15 ) are formed, wherein - at the lower cutting jaw ( 6 ) two along the cutting jaws separated by a nose-like projection to the axis of symmetry (A) of the cable shears ( 1 ) concave cutting edges ( 12 . 13 ) are arranged while - at the upper cutting jaw ( 7 ) two cutting sections lying one behind the other in the longitudinal direction of the cutting jaws ( 14 . 15 ), of which the rear, the scissors joint ( 2 ) adjacent cutting edge ( 17 ) to the symmetry axis (A) of the cable shears ( 1 ) is also concave and formed in a symmetrical arc shape and the front, the scissors joint ( 2 ) facing away cutting edge ( 16 ) is formed convexly curved to the axis of symmetry (A) Cable cutter according to claim 1, characterized in that the upper edge ( 17 ) as well as the lower edge ( 12 ) in the rear, the scissors joint adjacent section to the axis of symmetry (A) of the cable cutter ( 1 ) are designed symmetrically lying and circular arc. Cable shears according to claim 1 and 2, characterized in that the two on one hand the cutting jaws ( 6 . 7 ) and partly the handle parts ( 8th . 9 ) forming lever arms in the area of the hinge pin ( 3 ) formed Scherengelenks ( 2 ) by a there in matching recesses ( 18 ), concealed from the outside torsion spring ( 19 ) held in the open position and in the closed position by a functioning in a known manner bolt ( 20 ) are lockable.