DE102009044107B4 - Pliers - Google Patents

Abstract

Pliers (1) with two pliers legs (2, 3) which are rotatably supported in relation to one another in a joint area (4), the forceps legs (2, 3) having a mouth area (7) on one side of the joint and a mouth area (7) on the other side of the joint Form grip sections (5, 6), the mouth area (7) also having different cutting formations formed one behind the other, each of which is formed by two cooperating working areas (8, 9, 10, 11) formed on one and the other pliers legs (2, 3) are formed, characterized in that the working areas (8, 9) further away from the joint, when the pliers (1) are closed, have first cutting edges (12, 13) lying on top of one another or spaced apart from one another in the opening direction and that the working areas (10, 11) which are closer to the joint When the pliers (1) are closed, they have second cutting edges (14, 15) that are pushed over one another like scissors.

Description

The invention relates to pliers with two pliers legs which are rotatably supported in relation to one another in a joint area, the pliers legs forming a mouth area on one side of the joint and grip sections on the other side of the joint, the mouth area also having different cutting formations formed one behind the other, each of which are formed by two cooperating working areas formed on one and the other of the pliers legs.

Pliers are initially known, for example, in the form of side cutters. For this purpose, refer to the DE 199 42 372 A1 referenced. In addition, pliers are also known as so-called center cutters. For this purpose, refer to the DE 94 06 868 U1 referenced. It is also already known to form several cutting areas one behind the other on the jaw side of a pair of pliers, see for example DE 196 49 992 C2 . The last-mentioned pliers are concealed cutting edges in the cutting area on the outside of the mouth. In the cutting area on the inside of the mouth around a one-sided cutting edge.

Starting from the prior art mentioned, the invention is concerned with the object of specifying a pair of pliers with first and second cutting edges formed one behind the other on the mouth side, which in particular enables inexpensive wire or cable processing.

This object is achieved in the subject matter of claim 1, whereby it is based on the fact that the working areas further away from the joint have first cutting edges lying on top of one another or spaced apart in the opening direction when the pliers are closed and that the working areas closer to the joint have scissor-like superimposed cutting edges when the forceps are closed.

The first cutting edges can be designed in particular in a design corresponding to a side cutter or a center cutter. When the pliers are opened, they move apart in a V-shape so that a cable or wire can be cut well in the usual way even in narrow work areas. The subsequent second cutting edges, which are at least partially one above the other like scissors when the pliers are closed, allow, for example, when the pliers are moved further forward after a first cutting with the first cutting edges, the reliable complete severing of any parts that have not yet been completely cut. The cutting machining of a workpiece can thus be carried out one after the other with further forward movement of the pliers in the direction of the workpiece, or the workpiece into the pliers, with different machining. The second cutting edges also make the pliers more stable. When using the first cutting edges, they prevent gape at right angles to the opening movement, at least in one direction and when the pliers are not fully opened. The design in the area of the second cutting edge, for example by means of profiles moving into one another, can also be provided in such a way that the gaping in both directions is prevented. Using the second cutting edge results in a use in a much more stable area of the pliers, as it is close to the joint.

Furthermore, in a first embodiment, in the closed state of the pliers, the second cutting edges may not or only slightly lie one above the other on the jaw side, but may lie one above the other to a greater extent on the joint side. Alternatively, it is also possible and also preferred within the scope of the application for the cutting edges to lie one above the other on the mouth side over a greater extent in the opening direction of the pliers than on the joint side. In addition, it is also possible that the second cutting edges are continuously superimposed with the same overlap or in the mouth-side and joint-side end areas with the same or at least greater overlap than in a central area. In this case, the coverage of the vagina passes through a minimum.

In both embodiments, it is possible that the first cutting edges are limited on the joint side by stop elements which are moved over one another in the closed state of the pliers and which accordingly only release access to the second cutting edges after the pliers have reached a certain opening angle. In particular in the embodiment of the second cutting edges lying one above the other on the side of the mouth area to a greater extent, it is advantageous to immediately form these stop elements integrally with the mentioned second cutting edges.

In addition to the sheath work areas, other work areas can also be provided that do not perform a cutting function or perform a very specific cutting function. First of all, gripping or burner hole work areas. As is known, a burner hole is the area of combination pliers, which is known per se, which delimits an oval-shaped opening in the closed state of the pliers and is composed of areas with a prong-like cross section. In addition, work areas can also be provided which, for example, form a stripping area. Such can be provided separately or integrated into the first cutting edges. This in the form of a closed position closed form additional stripping recesses in the respective work area.

The mentioned further working areas are preferably formed on the mouth side of the working areas forming the first cutting edges.

• 1 eine Draufsicht auf eine Zange, in geschlossener Stellung;
• 2 eine Draufsicht auf die Zange gemäß 1 in einer teilweise geöffneten Stellung;
• 3 eine perspektivische Ansicht des Zangenkopfes in geschlossener Stellung;
• 4 eine perspektivische Ansicht des Zangenkopfes in geöffneter Stellung von einer ersten Seite;
• 5 eine Darstellung gemäß 4, gesehen von einer zweiten Seite;
• 6 eine Darstellung eines Zangenkopfbereiches mit weiteren Arbeitsbereichen; und
• 7 der Zangenkopf gemäß 6 in geschlossener Form.

The invention is further explained below with reference to the accompanying drawing, which however only represents an exemplary embodiment. Here shows

• 1 a plan view of a pair of pliers, in the closed position;
• 2 a plan view of the pliers according to 1 in a partially open position;
• 3 a perspective view of the pliers head in the closed position;
• 4th a perspective view of the pliers head in the open position from a first side;
• 5 a representation according to 4th seen from a second side;
• 6th a representation of a pliers head area with further work areas; and
• 7th the pliers head according to 6th in closed form.

1 shows a pair of pliers 1 who have favourited Two Pliers Legs 2 , 3 having that in a joint area 4th are rotatably mounted to each other. The pliers legs 2 , 3 form grip sections on one side of the joint 5 , 6th and a mouth area on the other side of the joint 7th . The mouth area 7th points in detail one behind the other, ie based on a longitudinal axis LL successively formed different cutting formations. These cutting formations are each of two interacting, on the pliers legs 2 or. 3 trained work areas 8th , 9 and 10 , 11 educated.

The working areas further away from the joint 8th , 9 form the first cutting edges 12th , 13th off that with the pliers closed 1 ( 2 shows in this respect a further opening) already lying on top of one another or possibly at a distance from one another over part of their length. They didn't run over each other. In this respect, the embodiment shown is a side cutter. It can also be a center cutter (not shown). In any case, they are preferably bite edges.

The work areas closer to the joints 10 , 11 form second cutting edges 14th , 15th off that with the pliers closed 1 have scissored over each other.

The second cutting 14th , 15th point here, based on a distance a from the joint, a different amount of coverage u on. The coverage measure u is larger on the mouth side than on the joint side.

When opening the pliers 1 , see about 2 , form tip-sided sections 16 , 17th of work areas 10 , 11 a limitation with regard to an insertion area E. for a workpiece relating to the work areas 8th and 9 . With further opening in the opening direction these sections leave 16 and 17th then inserting a workpiece through to the cutting edge 14th and 15th to. Of course, this does not affect the possibility of partially open pliers 1 from above with respect to the cutting edges 14th , 15th onto a workpiece, for example a wire to be cut, or push the workpiece or the wire through the through the cutting edges when the pliers are partially opened 14th , 15th Pass the released opening.

Between the joint area 4th and the pliers legs 2 , 3 are two other areas of work 18th , 19th provided, which several parallel to the joint axis, for example circular openings 20th form. The breakthroughs 20th are each half a work area 18th , 19th assigned so that when the pliers are closed 1 continuous circular breakthroughs 19th form. These work areas 18th , 19th can be used, for example, to squeeze cable lugs (crimping), whereby the openings 20th have different diameters in order to be able to process different cable lugs.

In 6th is, in the open state, a pair of pliers 21 is shown, initially in accordance with the embodiment described above, pliers legs 2 , 3 having that in a joint area 4th are rotatably mounted to each other crossing each other. In further agreement, there is also a mouth area here on one side of the joint 7th formed, in detail one behind the other, based on a longitudinal axis LL has differently formed cutting formations. Here, too, these cutting formations are each of two cooperating on the pliers legs 2 or. 3 trained work areas 8th or. 9 and 10 , 11 educated.

The one to the joint 4th more distant workspaces 8th , 9 also form the first cutting edges here 12th , 13th from, which with the pliers closed, cf. 7th , partly on top of one another, but partly also because of corresponding recesses in each of the working areas, form closed recesses 22, 23 which can be used as stripping holes. Further on the mouth side of the work areas 8th and 9 further work areas 24, 25 are formed, which in the exemplary embodiment are designed as conventional gripping work areas.

In 7th it can be seen that the second cutting edge 14th , 15th are in overlap with each other when the pliers are closed. In contrast to the embodiment described first, the cutting edges 14th , 15th Here both the mouth side and the joint area side in a greater overlap than in a central area between the mouth side and the joint area side end area. In this respect, the overlap runs through a minimum.

List of reference symbols

1

Pliers

2

Pliers legs

3

Pliers legs

4th

Joint area

5

Handle section

6th

Handle section

7th

Mouth area

8th

Workspace

9

Workspace

10

Workspace

11

Workspace

12th

first cutting

13th

first edge

14th

second cutting edge

15th

second cutting edge

16

pointed section

17th

pointed section

18th

Workspace

19th

Workspace

20th

breakthrough

a

distance

u

Coverage

E.

Lead-in area

L-L

Longitudinal axis

Claims (9)

Forceps (1) with two forceps legs (2, 3), which are rotatably supported in a joint area (4) with respect to each other, the forceps legs (2, 3) having a mouth area (7) on one side of the joint and a mouth area (7) on the other side of the joint Form grip sections (5, 6), the mouth area (7) also having different cutting formations formed one behind the other, each of which is formed by two cooperating working areas (8, 9, 10, 11) formed on one and the other pliers legs (2, 3) are formed, characterized in that the working areas (8, 9) further away from the joint, when the pliers (1) are closed, have first cutting edges (12, 13) lying on top of one another or spaced apart from one another in the opening direction and that the working areas (10, 11) which are closer to the joint When the pliers (1) are closed, they have second cutting edges (14, 15) that are pushed over one another like scissors. Pliers after Claim 1 , characterized in that the second cutting edges (14, 15) delimit the insertion area (E) of the first cutting edges (12, 13) on the joint side over part of the opening angle of the pliers (1). Pliers according to one of the preceding claims, characterized in that the second cutting edges (14, 15) are designed remote from the joint with a greater overlap than near the joint. Pliers according to one of the preceding claims, characterized in that the overlap of the second cutting edges (14, 15) runs through a minimum in the longitudinal direction of the pliers. Pliers according to one of the preceding claims, characterized in that the first cutting edges (12, 13) are designed in a side cutting configuration. Pliers for one of the Claims 1 to 4th , characterized in that the first cutting edges (12, 13) are formed in a center cutting configuration. Pliers according to one of the preceding claims, characterized in that, in addition to the sheath working areas (8, 9, 10, 11), the pliers have further working areas such as gripping, burning hole or stripping working areas. Pliers after Claim 7 , characterized in that further working areas are formed on the mouth side of the working areas (8, 9, 10, 11) forming the first cutting edges. Pliers for one of the Claims 7 or 8th , characterized in that the first cutting edges (12, 13) are designed with one or more stripping recesses which complement each other in the closed state.

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