Manually operable cutting tool

Abstract

The invention relates to a manually operable cutting tool (1) comprising a first tool leg (2) and a second tool leg (3), which about an axis of rotation (x), the tool legs (2, 3) forming a cutting mouth (11), further working surfaces (9, 10) of the cutting mouth (11) being formed with cutting edges (12, 13, 21), and a working surface (9) of the first tool leg (2) comprising first and second cutting edges (12, 13), the first cutting edge (12) transitioning into the second cutting edge (13) via a projecting shoulder (14), the shoulder (14) coming into a position one over the other with the second tool leg (3) such that an opening region (35) remains between the cutting edges of the tool legs (2, 3).

Description

Description Manually operated cutting tool field of technology

[0001] The invention relates to a manually operable cutting tool with two tool limbs, a first and a second tool limb, which can be pivoted relative to one another about a rotational axis along a pivoting plane, wherein the tool limbs form grip sections on one side of the rotational axis and a cutting mouth on the other side, wherein further working surfaces of the cutting mouth are formed with cutting edges and a working surface of the first tool limb has first and second cutting edges, wherein the first cutting edge of the first tool limb, at the transition to the second cutting edge, merges into a shoulder which projects in a closing direction relative to the second cutting edge, wherein the shoulder, upon movement into a closed position of the cutting tool, comes into a superimposed position with the second tool limb for the first time in a closed region, wherein in the first closed position the closed region,seen from the axis of rotation in a radial direction, at a radial end of an opening area remaining between the first cutting edge of the first tool leg and the second tool leg in the first closed position. State of the art

[0002] Cutting tools of the type in question are primarily used for cutting cables or wires, for example, made of copper, steel, or fiberglass. Such cutting tools are also known as cable cutters or cable cutting pliers, with the handle sections of pliers-like cutting tools being elongated, rod-shaped. shaped, usually without an eyelet-like opening for the fingers, as is known from scissors.

[0003] A cutting tool of the type in question is known from DE 102009 044 107 A1. This cutting tool, designed as pliers, has first and second cutting edges arranged one behind the other in the radial direction in the region of both tool limbs, starting from the axis of rotation, which first and second cutting edges are separated from one another by a shoulder protruding relative to the second cutting edge. The second cutting edges are designed to meet one another, like a side cutter. The pliers mouth is designed with a continuously rounded cutting edge with regard to the first cutting edges. The second cutting edges, which are offset from the first cutting edges with respect to the cutting plane and run continuously in a straight line, can only complete a cutting process when the pliers are completely closed. This cutting tool is less suitable for cutting multi-core cables in particular.

[0004] WO 2021 / 160549 A1 discloses a pliers-like cutting tool whose cutting edges are positioned one above the other for the first time in a radially outermost region during the closing of the tool. In this first closed position, a plurality of cutting regions, each having its own curved contour and forming an opening region, is formed radially inward. Identical cutting regions are formed on both tool limbs. The cutting regions are separated from one another by tip-like connecting regions, which form a peripheral edge of the opening contour in the first closed position. Although good cutting of cables is achieved with this cutting tool, desired further preparatory or supplementary cutting processes, such as an initial incision or stripping, can be carried out. It is practically impossible to carry out cutting operations with this cutting tool.

[0005] From US 1 520 529 A a pair of garden shears is known in which, in the said first closed position, a substantially straight cutting edge is formed on one of the pliers legs radially outside and radially inside of the first superimposed position. With respect to the said opening contour, the substantially straight cutting edge is opposed by a substantially continuously concave cutting edge of the other tool leg, which is formed with a slight curvature. On one tool leg, a stepped transition is formed which runs convexly curved from the first to the second cutting edge and is also continuously formed as a cutting edge. On the other tool leg, a convexly rounded, protruding connecting region is formed which, in the said first closed position, is in superimposed position with the stepped transition of the first tool leg. The garden shears are hardly suitable for cutting cables.The shape of the cutting edge can result in comparatively high cutting edges for cables. In the first closed position, the cutting mouth is already largely closed with respect to the second cutting edges. A comparable state of the art is also provided by US Pat. No. 3,461,555 A.

[0006] Furthermore, with regard to the state of the art, reference should also be made to DE 297033 08 Ul, DE 195 06457 C2 and DE 295 025 91 Ul.

[0007] There is a need to provide a cutting tool with which, on the one hand, a cable, in particular a cable which has several cable cores, can be advantageously cut through, but with which, on the other hand, a first separation of the sheath can be carried out independently of cutting through and, if possible, a stripping of the insulation from a core can be carried out advantageously.

[0008] Based on the initially mentioned prior art, the invention has the object of providing a cutting tool which is particularly advantageously designed as a cable cutter and which is also as ergonomically favorable to handle as possible. Summary of the invention

[0009] A possible solution to the problem is provided according to a first inventive concept in a cutting tool, in which the first cutting edge of the first tool leg has two first and second cutting regions formed one behind the other in the radial direction, which merge into one another via a first tip-like connecting region, wherein the first tip-like connecting region in the first closed position forms part of a peripheral edge of the opening region, and in that a first radial line emanating from the axis of rotation in the pivot plane, which first radial line bears against the first tip-like connecting region from the outside, viewed opposite to the closing direction, penetrates the shoulder approximately at half the height, measured on a second radial line running perpendicular to a second radial line running in the pivot plane, which second radial line touches the second cutting edge of the first tool leg at a lowest point viewed opposite to the pivot direction,wherein the vertical passes through a region of the shoulder which projects furthest in the pivoting direction.

[0010] A possible solution to the problem can also be provided in that the first and second cutting edges of the first tool leg each have two first and second cutting areas arranged one behind the other in the radial direction, which merge into one another via a first and a second tip-like connecting area, wherein the tip-like connecting areas are each formed as a convex transition, which separates the first and second cutting areas, each formed with a concave edge. and that a straight line applied to the outside of the tip-like connecting regions passes through the shoulder formed between the first and the second cutting edge, wherein a projection of the shoulder removed perpendicular to the straight line corresponds to four times or more of a greatest depth of the first cutting region of the second cutting edge spanned by the straight line, removed in the opposite direction perpendicular to the straight line.

[0011] A further possible solution to the problem can be provided in that the first cutting edge of the first tool leg has two first and second cutting areas arranged one behind the other in the radial direction, which merge into one another via a first tip-like connecting area, and in that the shoulder formed only on the first tool leg extends with respect to a radially outer section of a first peripheral edge facing the second cutting edge, relative to a fourth radial emanating from the axis of rotation, which radial line passes through the shoulder at an intersection point in the section relative to the intersection point approximately midway at a height of the shoulder, and which section extends approximately over half of its extension or more along a tangent to the fourth radial line at the intersection point,wherein the height results from a measurement removed at the intersection point perpendicular to the fourth radial up to a first measurement point of the shoulder itself furthest away from the fourth radial in the closing direction and up to a second measurement point of the second cutting edge furthest away against the closing direction, and that the edge in the section, viewed from the intersection point, transitions into a convex curvature at the first measurement point and into a concave curvature at the second measurement point.

[0012] The shoulder is thus steeply sloped, but also formed with a curved transition to the radially inward and radially outward directions. Particularly if the shoulder is also formed as a continuous cutting edge, as is preferred, this creates the possibility of a favorable continuous cut regardless of the shoulder. Since the shoulder is thus comparatively steep, a favorable separation is nevertheless achieved in the first closed position between the first and second cutting edges, or the remaining opening area.

[0013] Through each of the proposed embodiments, but also possibly a combination of only individual features of the proposed solutions, an improved cutting result can be achieved with favorable handling of the cutting tool by the user, for example when cutting cables, more particularly electrical cables. By subdividing in particular the cutting edge of the first tool limb in the radial direction into cutting areas formed one behind the other and merging into one another via the tip-like connecting area, a completely closed cutting opening is produced, particularly when the opening area is delimited in the first closed position by the shoulder, in which a cable, even of different sizes, can lie completely in terms of its circumference and can then advantageously be cut through by the leading tip-like connecting area with a favorable initial separation.The relatively large shoulder, due to the specified condition, combined with a second cutting area of ​​the first cutting edge that rises radially outward toward the shoulder, allows for a cable to be cut to be picked up and cut with minimal force. In particular, the additionally provided second cutting edges also allow for advantageous pre-severance of the cable with the same cutting tool.

[0014] Starting from the first closed position, the second cutting edges, which extend radially outward relative to the shoulder, can be used to perform a first cut on the cable, if necessary, but also only from the radial outside, without the cable being at risk of entering the area of ​​the first cutting edges and possibly being completely severed due to the shoulder. The comparatively high shoulder, which protrudes far in the closing direction, effectively blocks off the area of ​​the first cutting edges early on during such a cutting process.

[0015] When cutting with the first cutting edges, the tip-like connecting area separating the concave edges of the cutting areas of the first cutting edge from each other can lead to a substantially point-like cutting load and corresponding cutting into the workpiece to be cut, for example the cable, during the cutting movement, from which point-like load through the tip-like connecting area in the course of the further cutting edge closing movement the cutting process continues essentially in the circumferential direction of the workpiece to be cut.In this way, an individual cut can advantageously be made initially over the circumference of the workpiece to be cut or in the direction of extension of the cutting edge, preferably in cooperation with the cutting edge of the other tool limb, several individual cuts which can complement each other to form an overall cut over the entire cross-section of the workpiece to be cut. This means that cuts can be carried out using a comparatively low cutting force. The specified geometric assignment, whereby a first radial emanating from the rotation axis in the pivoting plane passes through the shoulder from the outside at approximately half the height while resting on the first tip-like connecting area, results in the relatively large free extension of the shoulder in the closing direction, together with an increase. of the second cutting area of ​​the first cutting edge towards the shoulder, preferably continuously up to a vertex or vertex area of ​​the shoulder.

[0016] The first and second cutting edges of the first and second cutting edges lie in a same cutting plane, together with the shoulder, which preferably also has an edge region designed as a cutting edge essentially or over its circumference or over its entire circumference.

[0017] The further specified possible geometric assignment, that a straight line applied externally to the tip-like connecting areas of both the first and second cutting edges of the first tool leg passes through the shoulder formed between the first and second cutting edges and in this case a vertical projection dimension, perpendicular to the straight line, with respect to the shoulder, which indicates the distance of the shoulder from the straight line, and corresponds to four times or more of the greatest depth removed by the same straight line of the first cutting area of ​​the second cutting edge spanned by the straight line, alternatively or additionally describes the relationship of the relatively large shoulder to an indentation of the first cutting area of ​​the second cutting edge. This configuration also leads to the already mentioned advantages of the cutting tool described here.

[0018] The connecting areas can form roof-like or rounded, particularly convex, tips, but alternatively also blunt tip areas with, for example, a straight surface.

[0019] A subdivision of one or both cutting edges of the first tool leg can also serve to offer different machining areas. For example, the radially inwardly adjacent to the second cutting edge The concave first cutting area of ​​the second cutting edges adjacent to the second cutting edge can be used as a stripping area in conjunction with the third cutting edge. The other concave configurations of the cutting edges formed on one of the cutting edges of the first or second tool leg can also be used for stripping.

[0020] In addition to limiting the opening range in the first closed position in the area of ​​the second cutting edge, the shoulder also provides a depth stop for a cutting material introduced into the area of ​​the second cutting edge, so that this material cannot reach the area of ​​the first cutting edge in a radially inward direction during desired machining in the area of ​​the second cutting edge.

[0021] The design of the shoulder divides the cutting mouth into separate cutting zones radially relative to the rotational axis. By appropriately spreading the handle sections of the cutting tool, the shoulder can be pivoted into a position in which it opens a passage between the radially outer cutting zone and the radially inner cutting zone, allowing the material to be cut to be introduced into the area of ​​the first cutting edge of the first tool leg.

[0022] Due to the selected geometries, for example, with regard to the shoulder height in relation to the greatest depth of the second cutting edge, a cutting tool is created by means of which the radially outer second cutting edge, and in particular the radially outer end region of the second cutting edge, can be used in a handling-friendly manner, without having to accept an unfavorably large shank width of the tool shanks in the area of ​​the handle sections. For example, this end region of the second cutting edge is used for cutting or Stripping a cable sheath (so-called "nibbling") or further, for example, for stripping wires.

[0023] The first radial can penetrate the shoulder at about half the height, whereby the portion of the vertical that is located between the first radial and the furthest projecting area of ​​the shoulder can correspond to about 40 to 60 percent of the total vertical between the second radial and the furthest projecting area of ​​the shoulder.

[0024] The projection dimension can also correspond to approximately 4 to 8 times, furthermore for example 4.5 to 6.5 times the greatest depth of the area of ​​the second cutting edge spanned by the straight line connecting the connecting areas.

[0025] The features of the above-described independent claims are significant both individually and in any combination with one another, whereby further features of an independent claim can be combined with the features of another independent claim or with features of several independent claims, and further also with only individual features of one or more of the other independent claims.

[0026] Further features of the invention are explained below, also in the description of the figures, often in their preferred association with the subject matter of claim 1 and / or the further independent claim 2 or with features of further claims. However, they may also be important in association with only individual features of claim 1 and / or the further independent claim 2 or of the respective further claim, or each may be important independently.

[0027] Thus, according to one embodiment, it can be provided that the first cutting edge can be moved over its entire length and the second cutting edge can be moved over substantially its entire length with a third cutting edge of the second tool leg, which third cutting edge extends over a combined length of the first and second cutting edges.

[0028] The third cutting edge in the region of the second tool leg is preferably designed for cutting interaction with both the first cutting edge and the second cutting edge of the first tool leg. This results in a scissor-like movement of the cutting edges of the first and second tool legs over one another during the cutting and closing movement.

[0029] In a further advantageous manner, the protruding shoulder can be formed only (exclusively) on the first tool leg. This offers particular advantages with regard to the exposure of the radially inner cutting zone with the first cutting edge or the opening of the passage between the radially outer cutting zone and the radially inner cutting zone, since this requires a comparatively smaller spreading of the handle sections compared to an arrangement in which both tool legs have a protruding shoulder. Such an asymmetrical design of the tool legs with regard to their peripheral edge or cutting edges facing the cutting mouth is preferred.

[0030] The shoulder is a configuration of the first tool leg, which comes into a first superposition with the second tool leg, in the first closed position, in the given case with the cutting edge formed thereon. In the first closed position, a point-like connecting section is either part of the remaining opening area or part of the freely opening, outwardly extending second cutting edge of the first tool leg. With regard to one or more tip-like connecting sections of the cutting edge of the second tool leg, it follows in the same way that such a connecting region is either part of the opening region or part of the part of the cutting edge that extends freely outwards, radially outwards, towards the shoulder. In the closed position, with regard to the second tool leg, a part of the cutting edge of the second tool leg that extends essentially along a radial and preferably essentially straight line is preferably in superposition with the shoulder.

[0031] Relative to a length of the third cutting edge measured in vertical projection along a third radial running in the pivot plane, a third tip-like connecting region can be formed in a first half of the length as seen from the axis of rotation, which third tip-like connecting region thus also forms part of the peripheral edge of the opening region in the first closed position. This third tip-like connecting region can be formed as a convex transition, corresponding to the previously described first connecting region of the first cutting edge, which separates the adjacent cutting regions of the third cutting edge, each of which is preferably formed with a concave peripheral edge. As a result of this further preferred embodiment, a supporting influence is provided during the cutting process in the region, in particular, of the first cutting edge or the first cutting zone.

[0032] In a further embodiment, the design of the third cutting edge can be such that the third radial extending from the rotation axis in the pivoting plane, which radial line rests on the third tip-like connecting area from the outside, seen in the closing direction, the second tool leg, that is to say in particular the further area of ​​the third cutting edge, does not penetrate beyond the third point-like region. Rather, starting from the axis of rotation, such a radial line, which preferably tangentially or touches the connecting region, runs freely in a radially outward direction (depending on a closed position of the tool limbs, possibly only penetrating the first tool limb). Thus, more preferably, a cutting area of ​​the third cutting edge which adjoins the third connecting region radially outwards - viewed from the first tool limb - runs continuously at a distance beyond the third radial line, while the cutting area of ​​the third cutting edge which adjoins the third connecting region radially inwards can, if necessary, for example in a radially inner end area of ​​the peripheral edge delimiting the opening area, intersect the third radial line in the pivoting plane.

[0033] The first tip-like connecting region and the third tip-like connecting region can be offset from one another in the radial direction. In this regard, the extent of the offset is preferably selected such that, during the closing of the opening region between the first cutting edge and the third cutting edge, the first and third connecting regions do not move directly over one another, or do not move significantly over one another. Accordingly, during the pivoting displacement of the tool limbs, the tip-like first and third connecting regions are moved along circular paths with different radii with respect to the axis of rotation. A workpiece, for example a cable, held in the region of the first cutting edge for cutting or severing can thus be cut in an offset, leading manner in the radial direction with respect to the axis of rotation, which contributes to an advantageous cutting process.

[0034] According to a further preferred embodiment, the third tip-like connecting region of the third cutting edge is formed closer to the rotational axis than the first tip-like connecting region of the first cutting edge. For example, a point of the first tip-like connecting region that projects furthest in the closing direction can move along a circular line whose radius can correspond to approximately 1.1 to 1.5 times, furthermore, for example, approximately 1.25 times, the radius over which the circular line of the point of the third tip-like connecting region that projects furthest in the closing direction is defined.

[0035] In a further embodiment, the radius of the circular line over which the third tip-like connecting region can be displaced can correspond to approximately 0.4 to 0.6 times, furthermore approximately 0.5 times, the circular line radius along which the region or point of the shoulder which projects furthest in the closing direction is displaced.

[0036] The first and second cutting edges of the first tool leg can be designed as the peripheral edge of a first contact and support surface of the first tool leg. Furthermore, the third cutting edge of the second tool leg can also be designed as the peripheral edge of a second contact and support surface of the second tool leg, wherein the first contact and support surface is moved over one another or is aligned with the second contact and support surface in the closed position. The first and second contact and support surfaces can each extend in the same continuous plane. This continuous plane can, as is also preferred, be the pivot plane running perpendicular to the axis.

[0037] In a further embodiment, the first partial area of ​​the first cutting edge and the first partial area of ​​the second cutting edge can (essentially) extend along the same second radial running in the pivot plane relative to the axis of rotation. In the case of tangential contact of this second radial at the peripheral edge of the first partial region of the first cutting edge or at the peripheral edge of the first partial region of the second cutting edge, there may optionally be a distance, viewed perpendicular to the second radial, from the further first partial region of the other cutting edge, which distance is preferably less than 1 mm, more preferably less than 0.5 mm, for example 0.1 or 0.2 mm.

[0038] According to a further preferred embodiment, a length of the first cutting edge removed along this second radial line up to a point of the first cutting edge that projects furthest in the closing direction can correspond approximately to twice or less of the projection dimension of this point, in the direction perpendicular to the second radial line. Further preferably, this furthest projecting point of the first cutting edge is formed by the furthest projecting point of the shoulder, so that, correspondingly facing the first, radially inner cutting zone, the shoulder can co-form part of the first cutting edge or part of the second cutting region of the first cutting edge.

[0039] The cutting edge of the second tool leg, the third cutting edge, also preferably runs in the same plane over its entire radial length, essentially the pivoting plane. This then also corresponds to the cutting plane.

[0040] In a further embodiment, the first contact and support surface of the first tool leg can be formed continuously, including the shoulder, with a cutting edge having a cutting angle. Thus, the shoulder is preferably part of the first and / or second cutting edge of the first tool leg, in this respect further preferably with regard to the flanks of the shoulder running approximately in the direction of projection of the shoulder, but also circumferentially.

[0041] The cutting angle can vary along the length of the first and / or second cutting edge of the first tool limb. Thus, in the immediate area of ​​the first cutting edge and / or second cutting edge, a typical cutting angle of approximately 20 to approximately 40°, furthermore, for example, approximately 35°, can be present. Furthermore, this can preferably also be present in the flank region of the shoulder facing the first cutting edge. In contrast, the flank region of the shoulder facing the second cutting edge, for example, can have a larger cutting angle of, for example, 75 to 88°, furthermore, for example, approximately 85°.

[0042] The ranges, value ranges, or multiple ranges specified above and below also include all intermediate values ​​with regard to the disclosure, in particular in 1 / 10 increments of the respective dimension, and therefore possibly also dimensionless. For example, the specification 20 to 40° also includes the disclosure of 20.1 to 40°, 20 to 39.9°, 20.1 to 39.9°, etc., the disclosure of 4 to 8 times also includes the disclosure of 4.1 to 8 times, 4 to 7.9 times, 4.1 to 7.9 times, etc. This disclosure can serve, on the one hand, to delimit a stated range limit from below and / or above, but alternatively or additionally, also to disclose one or more singular values ​​from a respectively specified range. Short description of the drawings

[0043] The invention is explained below with reference to the accompanying drawing, which, however, represents only one exemplary embodiment. The drawing shows: Fig. 1 the cutting tool in perspective view, concerning the closed position of a cutting mouth; Fig. 2 shows the cutting tool in a side view according to arrow II in Fig. 3; Fig. 3 shows the cutting tool in a further side view according to arrow III in Fig. 2; Fig. 4 the cutting tool in a further side view according to arrow IV in Fig. 3; Fig. 5 shows the cutting tool in a view according to arrow V in Fig. 4; Fig. 6 shows the cutting tool in a plan view; Fig. 7 the cutting tool in a bottom view; Fig. 8 shows the section along the line VIII-VIII in Fig. 3; Fig. 9 shows the cutting tool in a view according to Fig. 3 when using a first cutting area of ​​a second cutting edge; Fig. 10 shows the enlarged view of area X in Fig. 9; Fig. 11 is a view substantially corresponding to Fig. 9, but using a second cutting area of ​​the second cutting edge; Fig. 12 the enlargement of area XII in Fig. 11; Fig. 13 is a further illustration essentially corresponding to Fig. 9, but using a first cutting edge of the cutting tool; Fig. 14 the enlargement of area XIV in Fig. 13; Fig. 15 in a further representation essentially corresponding to Fig. 9 an alternative use of the first cutting edge of the cutting tool; Fig. 16 shows an enlarged view of area XVI in Fig. 15; Fig. 17 shows the enlarged section XVII in Fig. 3; Fig. 18 is a view substantially corresponding to Fig. 17, but relating to a first closed position of the cutting tool; Fig. 19 shows an enlarged individual view of a first tool leg of the cutting tool with a first cutting edge and a second cutting edge and a shoulder formed between the cutting edges; Fig. 20 shows the further enlarged view of the area XX in Fig. 19; Fig. 21 in an enlarged individual view a second tool leg of the cutting tool with a third cutting edge; Fig. 22 shows the section along the line XXII-XXII in Fig. 17; Fig. 23 shows the section along the line XXIII-XXIII in Fig. 17; Fig. 24-30 the cutting tool in further views; and Fig. 31 is a further illustration corresponding to Fig. 19, to explain a further characterization of the cutting mouth with regard to the shoulder. Description of the embodiments

[0044] Shown and described, initially with reference to Figs. 1 to 7, is a manually operable cutting tool 1, here, as also preferably, in the form of a cable cutter, with a first tool leg 2 and a second tool leg 3, which tool legs 2 and 3 intersect at a hinge pin 4 (joint) and can thus be pivoted relative to one another in a pivot plane E about a geometric axis of rotation x formed by the hinge pin 4. The axis of rotation x is preferably oriented perpendicular to the pivot plane E.

[0045] Each tool leg 2 and 3 forms a handle section 5 and 6 on one side of the hinge pin 4 and cutting jaws 7 and 8 on the other side of the hinge pin 4. The cutting jaws 7 and 8 delimit a cutting mouth 11 with their working surfaces 9 and 10, at least in an open position, for example according to Fig. 14. The working surfaces 9 and 10 are essentially designed as cutting edges, or continuously, as will be explained below.

[0046] With a preferably substantially at least approximately symmetrical design of the tool limbs 2 and 3, furthermore in particular with regard to the design of the handle sections 5 and 6 and the outer contour of the cutting jaws 7 and 8, an asymmetrical design is preferably selected, particularly with regard to the working surfaces 9 and 10 of the cutting jaws 7 and 8. The working surface 7 of the first tool limb 2 is preferably formed differently from the working surface 8 of the second tool limb 3. With this design, the tool limbs cannot be transferred into one another, for example, by rotation about their longitudinal axis.

[0047] Thus, as can be seen in particular from the individual illustration in Fig. 19, the cutting jaw 7 of the first tool leg 2 is provided with two cutting edges arranged one behind the other in the radial direction R with respect to the axis of rotation x, such as a radially inner first cutting edge 12 and a radially outer second cutting edge 13, wherein the first cutting edge 12 merges at the transition to the second cutting edge 13 into a shoulder 14 projecting in a closing direction S of the cutting tool 1, in particular with respect to the second cutting edge 13.

[0048] Both cutting edges 12 and 13 are preferably each divided into two cutting areas arranged one behind the other in the radial direction R, thus the first cutting edge 12 into a first cutting area 15 and a second cutting area 16 and preferably the second cutting edge 13 into a first cutting area 17 and a second cutting area 18. The cutting areas 15 and 16 each merge into one another via a first tip-like connecting area 19 and the cutting areas 17 and 18 preferably merge into one another via a second tip-like connecting area 20.

[0049] The cutting jaw 8 of the second tool leg 3, on the other hand, is preferably provided with only one cutting edge (third cutting edge) 21, which, viewed in the radial direction R, is essentially divided into a first cutting area 22 and a second cutting area 23, which cutting areas 22 and 23 preferably, and preferably only, merge into one another via a third tip-like connecting area 24 (see also detailed illustration in Fig. 21).

[0050] The tip-like connecting regions 19, 20, and 24 are essentially each formed as a convexly curved transition viewed in (the respective) closing direction S, to which concavely curved cutting regions adjoin on both sides, also viewed in the closing direction S. Accordingly, the connecting regions are formed in a tip-like manner with respect to the immediately adjacent cutting regions in the closing direction S, so that the cutting regions adjoining on both sides are separated by the connecting regions.

[0051] This allows the user to use one or the other cutting area in a targeted manner, for example in the area of ​​the second cutting edge 13, in which the radially outer second cutting area 18, for example according to the illustrations in Figs. 11 and 12, can preferably be used, for example, to cut into a cable sheath 25, while furthermore, for example, the radially inner first cutting area 17 of this second cutting edge 13 can be used in a targeted manner, for example, to strip a wire 26 (cf. Figs. 9 and 10).

[0052] In addition, the cutting areas separated by the connecting area can also be used in combination, in particular for cutting cables 44 of different diameters (see Fig. 13 to 16), and furthermore in particular with regard to the cutting areas 15 and 16 of the radially inner first cutting edge 12 of the first tool leg 2.

[0053] The first cutting edge 12, together with the second cutting edge 13 and the shoulder 14, forms a first peripheral edge 27 which delimits the cutting mouth 11 and which simultaneously forms the boundary of a first contact and support surface 28 of the first tool leg 2 in the region of the cutting jaw 7, said first peripheral edge facing the opposite tool leg 3 and extending in a pivoting plane E. The second peripheral edge 29, which further delimits the cutting mouth 11, is formed by the third cutting edge 21 of the second tool leg 3. Here, too, this peripheral edge 29 simultaneously forms a boundary of a second contact and support surface 30 of the second tool leg in the region of the cutting jaw 8, which contact and support surface also extends in the pivoting plane E. Both contact and support surfaces 28 and 29 are located at least in a closed position, for example as shown in Fig.17, to each other, with the relevant edge edges 27 and 29 moving over each other, wherein the contact and support surfaces 28 and 30 extend practically in the same plane, the pivot plane E. In the closed position, the first contact and support surface 28 and the second contact and support surface 30 move over each other to different distances in the radial direction, but preferably always only over a part of the respective surface.

[0054] The first contact and support surface 28 of the first tool leg 2 is provided with a cutting edge 31 having a cutting angle α, including the first cutting edge 12, the second cutting edge 13, and the shoulder 14, as is the second contact and support surface 30 with a cutting edge 32 having a cutting angle β (see Figs. 22 and 23). Accordingly, the shoulder 14 separating the first cutting edge 12 from the second cutting edge 13 can also be provided along its free area between the cutting edges. the peripheral edge 12 and 13, which forms a section of the first peripheral edge 27, can be formed with a cutting edge, wherein further facing the first cutting edge 12 the relevant peripheral edge of the shoulder 13 can be formed as a cutting edge 31 with essentially the same cutting angle a of, for example, approximately 20 to 40°, further for example approximately 35°, as in the region of the first cutting edge 12, while preferably a radially outer section of the first peripheral edge 27 or the shoulder flank 38 facing the second cutting edge 13 according to the sectional view in Fig. 22 can have a more obtuse cutting angle a' of, for example, 80 to 85°, possibly up to 89°, compared to the usual cutting angle a of approximately 20 to 40°.

[0055] During the pivoting displacement of the tool limbs 2 and 3 relative to one another in the closing direction S, a first closed position is produced in which the shoulder 14 of the first tool limb 1 comes into superposition with the second tool limb 3, here in particular with the third cutting edge 21, for the first time in a closing region 33 (see Fig. 18). This closing region 33 can, as is also preferred, be defined by a region 34 of the shoulder 14 which projects furthest in the closing direction S. This region 34 can be given as a point in a view according to Fig. 18, in which view the rotation axis x appears as a point, or also, as indicated in Fig. 18, by a straight section which runs essentially in the radial direction with respect to the rotation axis x.

[0056] In this first closing direction according to Fig. 18, a first opening area 35 remains between the first cutting edge 12 of the first tool leg 2 and the third cutting edge 21 of the second tool leg 3, which is closed all the way around by the edge 27 and 29 of the cutting edges 12 and 21. The closing area 33 results in this first closed position in the radial direction R viewed from the rotation axis x at a radial end of the opening area 35.

[0057] As can be further seen from the illustration in Fig. 18, in this first closed position of the cutting tool 1, a second opening region 36 which continues to be open radially outwards is provided between the second cutting edge 13 of the first tool leg 1 and the section of the third cutting edge 21 of the second tool leg 3 which projects radially outwards beyond the closing region 33.

[0058] As can be seen from the detailed illustration in Fig. 19, a first radial RI emanating from the rotation axis x, which bears against the first tip-like connecting region 19 of the first cutting edge 12 from the outside, viewed opposite to the closing direction S, penetrates the region of the second cutting region 16 of the first cutting edge 12 adjoining the first connecting region 19, as well as the adjoining shoulder 14, in order to emerge freely outward in the region of the steeply sloping flank 38 of the shoulder 14, which runs into the first cutting region 17 of the second cutting edge 13, with respect to only the first tool leg 2. The first radial RI spans the concave peripheral edge section of the first cutting region 15 of the first cutting edge 12 in a chord-like manner.

[0059] The first peripheral edge RI passes through the shoulder 14 in the region of approximately half a height h, which height h is removed along a perpendicular a, which is formed between the region 34 projecting furthest in the closing direction S, it can also be a point depending on the course of the peripheral edge of the shoulder, of the shoulder 14 and a second radial R2, which touches the second cutting edge 13 of the first tool leg 2 at a lowest point 37 viewed opposite to the pivoting direction S. The perpendicular Right a refers to the second radial R2. The lowest point 37 preferably occurs in the area of ​​the first cutting area 17 of the second cutting edge 13.

[0060] As can be further seen from the illustration in Fig. 19, the second radial R2 can, in addition to the contact at point 37 in the region of the second cutting edge 13, also substantially touch the first cutting edge 12 in the region of the first cutting area 15, optionally with a comparatively small distance of preferably less than 1 mm, more preferably of a few tenths of a millimeter, for example of 0.2 or 0.3 mm to an applied tangent.

[0061] The second radius R2 further preferably extends from the rotation axis x completely until it exits in the region of an end face 39 of the first tool leg 2, completely penetrating the tool leg 2 or the cutting jaw 7. Starting from the rotation axis x, the second radial R2 preferably exits only in the region of the end face 39.

[0062] Starting from the lowest point 37 of the second cutting edge 13 in the region of the first cutting area 17, the further course of the second cutting edge 13, in particular with regard to the second cutting area 18 and the second connecting area 20, results in a spacing from the above-described second radial R2, so that with reference to a highest point 40 of the second cutting edge viewed in the closing direction S, which here is a highest point of the second cutting area 18 of the second cutting edge 13, a height h can be set along a perpendicular to the radial R2, which can correspond to approximately 1 / 10 to 1 / 4, furthermore, for example, approximately 1 / 6 of the above-described height h of the shoulder 14 starting from the same second radius R2.

[0063] Essentially starting from the furthest projecting region 34 of the shoulder 14, a length b of the first cutting edge 12 and a length c of the second cutting edge 13 result along a radial line, which length c can correspond to approximately 0.4 to 0.7 times, furthermore, for example, approximately 0.5 to 0.6 times the length b of the first cutting edge 12. This also results in a combined length d of both cutting edges 12 and 13, which length d essentially corresponds to the total length e of the third cutting edge 21, also viewed in the radial direction. The length b of the first cutting edge 12 can furthermore, as is also preferred, correspond to approximately 1.5 to 2 times the projection dimension viewed perpendicular to the second radial line R2 or the height h in the region of the shoulder 14.

[0064] The enlarged detail view of the first tool leg 2 in Fig. 20 shows a straight line G which, viewed opposite to the closing direction S, rests against the tip-like connecting regions 19 and 20 of the first and second cutting edges 12, 13, preferably touching the connecting regions at points. The straight line G passes through the shoulder 14 and spans the concave edge portion of the first cutting region 17 of the second cutting edge 13 in a chord-like manner, before exiting at the end in the region of the end face 39, plunging into the cutting jaw 7.

[0065] This results in a projection dimension v of the shoulder 14, measured perpendicular to the straight line G, between the straight line G and the furthest projecting area 34 of the shoulder 14 or a furthest projecting point of the first cutting edge 12, which furthest projecting point of the first cutting edge 12 can be formed by the area 34 of the shoulder 14. This projection dimension v can correspond to four times or more, for example up to five or six times, a greatest depth t, which greatest depth t extends in the opposite direction to the projection dimension v from the straight line G in the spanned first cutting area 17 of the second cutting edge 13 at point 37 (see Fig. 20). A height measurement m subtracted from the straight line G in the direction of the projection dimension v in the region of the highest point 40 of the second cutting edge 13 can further correspond to approximately 1 / 10 to 1 / 5, furthermore, for example, approximately 1 / 6 of the projection dimension v.

[0066] A third radial R3 (cf. e.g. Fig. 21), which also originates from the rotational axis x and which, viewed opposite to the closing direction S of the second tool leg 3, rests against the third connecting region 24, can extend freely radially outwards beyond this third connecting region 24 with respect to the second tool leg 3, i.e., no longer penetrating the tool leg 3.

[0067] In this case, the third connecting region 24 is preferably arranged with respect to the length e of the third cutting edge 21 in a first half of the length e - viewed from the rotation axis x - more preferably in a first quarter to a first third of the length e.

[0068] In a further preferred embodiment, the tip-like connecting regions 19 and 24 of the first cutting edge 12 and the third cutting edge 21 are offset from one another as viewed in the radial direction R, wherein more preferably the third tip-like connecting region 24 is formed closer to the axis of rotation x than the first connecting region 19. Thus, according to the illustrations in Figs. 19 and 21, a relevant radius dimension f of the third connecting region 24 can result, which can correspond to approximately 0.6 to 0.9 times, further for example approximately 0.7 to 0.8 times the radius dimension j of the first connecting region 19.

[0069] In a further embodiment, the third cutting edge 21 can initially have a concave section in the region of its second cutting region 23, starting from the third connecting region 24 and viewed radially outward, which section merges into a substantially rectilinear section 41. In the region of the radially outer end of this rectilinear section 41, a further concave section 42 can adjoin, which ends radially in an imaginary line 43 extended beyond the rectilinear section 41 (see in particular Fig. 21).

[0070] According to the proposed design, in particular two cutting zones ZI and Z2 are formed, which are essentially separated from one another by the projecting shoulder 14, the cutting zone ZI being formed between the first cutting edge 12 of the first tool leg 2 and the section of the third cutting edge 21 of the second tool leg 3 having the third connecting region 24, and the second cutting zone Z2 being formed between the second cutting edge 13 of the first tool leg 2 and the radially outer section of the third cutting edge 21 of the second tool leg 3.

[0071] The cutting zone ZI is particularly suitable for cutting through cables 44 of different diameters. The comparatively long handle sections 5 and 6 provide a favorable transmission and effect on the cutting edges, whereby due to the subdivision of the first cutting edge 12 in particular into two cutting areas 15 and 16, which merge into one another via the first connecting area 19, and further due to the formation of the third connecting area 24 with cutting areas 22 and 23 of the third cutting edge 21 adjoining on both sides, a favorable cutting effect on the cable 44 is achieved. The point-like connecting areas 19 and 24 separating the concave cutting areas from one another, possibly only occasionally, lead during the cutting movement essentially to an initially point-like cutting load on the workpiece to be cut, from which point-like load through the connecting areas during the further closing movement of the cutting tool on both sides, the cutting process continues essentially in the circumferential direction of the workpiece to be cut. Furthermore, in a preferred embodiment, an advantageous cutting sequence results, wherein the opening area delimited on one side by the peripheral edge of the first cutting area 22 of the third cutting edge 21 ultimately reaches the opposite cutting edge 12 in superposition.Furthermore, due to this configuration of the first cutting zone ZI, an effect can be achieved on the workpiece to be cut, for example, cable 44, whereby this workpiece to be cut is tending to be loaded in the direction of the rotation axis within the cutting opening during the cutting process, preferably throughout the entire cutting process (at least from reaching the described first closing point). This intended effect also leads to an improved cutting pattern and favorable, force-reducing handling.

[0072] The radially outer second cutting zone Z2 is preferably used, as mentioned above, for example, to cut into a cable sheath 25 (cf. Figs. 11 and 12), for which purpose in particular the radially outer cutting areas of the second cutting edge 13 and the third cutting edge 21 are used, in particular the second cutting area 18 of the second cutting edge 13 and the concave section 42 of the second cutting area 23 of the third cutting edge 21. The first cutting area 17 of the second cutting edge 13 can, in cooperation with the straight section 41 of the second cutting area 23 of the third cutting edge 21, serve, for example, to strip wires 26, as is shown, for example, in Figs. 9 and 10.

[0073] When using the second cutting zone Z2, the shoulder 14 provides a stop radially inward so that the cable or wire to be processed does not enter the radially inner area of ​​the cutting zone ZI.

[0074] Due to the previously described geometry of the cutting edges, small leg widths with respect to the handle sections 5 and 6 result when machining the workpiece in the area of ​​the front cutting zone Z2, so that ergonomically favorable handling is achieved in this regard.

[0075] With reference to Fig. 31, a further geometric relationship with respect to the shoulder 14 is explained, which may be important in itself but also in combination with the previously described embodiments.

[0076] A fourth radial R4, starting from the rotation axis x, passes through the shoulder 14 at a radially outer section of its peripheral edge, which is also a section of the first peripheral edge 27, at an intersection point s. The intersection point s is selected such that it is arranged approximately centrally with respect to a height of the shoulder 14. The height of the shoulder 14 is further preferably formed by dimensions M1 and M2 measured at a perpendicular to this radial R4 at the intersection point s. The dimensions M1 and M2 result from the distance starting from the radial R4 to a measuring point MP1 of the shoulder 14 furthest away in the closing direction S and a Dimension M2 also measured on a perpendicular, in the opposite direction, up to a dimension point MP2 of the second cutting edge 13, which designates a lowest point of the second cutting edge 13. These dimensions M1 and M2 are equal to the intersection point s.

[0077] The section of the peripheral edge is practically straight, corresponding to a tangent to said radial R4 at the intersection point s, and this over a considerable dimension, namely at least over half of its dimension corresponding to said height.

[0078] It is further preferred that the straight or approximately straight course of said peripheral edge extends in the direction toward the measuring point MP1 over a greater distance from the intersection point s than in the opposite direction, toward the measuring point MP2. Further preferred is the straight or approximately straight dimension of said portion of the peripheral edge in the direction toward the measuring point MP1, approximately 1.2 to 1.8 times the dimension in the opposite direction, more preferably approximately 1.4 to 1.6 times.

[0079] The fourth radial R4 mentioned above may coincide with the first radial RI, but it may also be different. Likewise, the height h already described may be the same as the height described here, but there may also be a difference.

[0080] In particular, it is also preferred that the first cutting edge has only the one described connection area and / or that the second cutting edge has only the one described connection area and / or that the third cutting edge has only the one described connection area.

[0081] The above statements serve to explain the inventions covered by the application as a whole, which each independently develop the state of the art by at least the following combinations of features, whereby two, several or all of these combinations of features can also be combined, namely:

[0082] A manually operable cutting tool, characterized in that the first cutting edge 12 of the first tool leg 2 has two first and second cutting regions 15, 16 formed one behind the other in the radial direction R, which merge into one another via a first tip-like connecting region 19, wherein the first tip-like connecting region 19 forms part of a peripheral edge 27 of the opening region 35 in the first closed position, and in that a first radial line RI extending from the rotation axis x in the pivot plane E, which abuts the first tip-like connecting region 19 from the outside, viewed opposite the closing direction S, passes through the shoulder 14 at approximately half a height h, measured on a perpendicular a to a second radial line R2 extending in the pivot plane E, which second radial line R2 contacts the second cutting edge 13 of the first tool leg 2 at a lowest point 37 viewed opposite the pivot direction S,wherein the perpendicular a passes through a region 34 of the shoulder 14 which projects furthest in the pivoting direction S.

[0083] A manually operable cutting tool, which is characterized in that the first and second cutting edges 12, 13 of the first tool leg 2 each have two first and second cutting regions 15, 16 and 17, 18 arranged one behind the other in the radial direction R, which merge into one another via a first and a second tip-like connecting region 19, 20, wherein the tip-like connecting regions 19, 20 are each formed as a convex transition which separates the first and second cutting regions 15, 16 and 17, 18, each formed with a concave peripheral edge 27, and in that a straight line G applied on the outside to the tip-like connecting regions 19, 20 passes through the shoulder 14 formed between the first and the second cutting edges 12, 13, wherein a projection dimension v of the shoulder 14 removed perpendicular to the straight line G corresponds to four times or more of a distance from the straight line G in the opposite direction perpendicular to the Straight line G removed greatest depth t of an area of ​​the first cutting area 17 of the second cutting edge 13 spanned by the straight line G.

[0084] A manually operable cutting tool, characterized in that the first cutting edge 12 of the first tool leg 2 has two first and second cutting regions 15, 16 arranged one behind the other in the radial direction R, which merge into one another via a first tip-like connecting region 19, in that the shoulder 14 formed only on the first tool leg 2, with respect to a radially outer section of a first peripheral edge 27 facing the second cutting edge 13, relative to a fourth radial R4 emanating from the rotation axis x, which passes through the shoulder 14 at an intersection point s in the section, approximately centrally of a height of the shoulder 14 with respect to the intersection point s, and which section extends approximately over half of its extent or more along a tangent T to the fourth radial R4 at the intersection point s, wherein the height is derived from a dimension M1 removed at the intersection point s in each case perpendicular to the fourth radial R4,M2 up to a first dimension point MP1 of the shoulder 14 itself, which is furthest away from the fourth radial R4 in the closing direction, and up to a second dimension point MP2 of the second cutting edge 13, which is furthest away from the closing direction, and that the peripheral edge in the section, viewed from the intersection point s, transitions into a convex curvature to the first dimension point MP1 and into a concave curvature to the second dimension point MP2.

[0085] A hand-operated cutting tool, which is characterized in that the first cutting edge 12 over its entire length b and the second cutting edge 13 over substantially its entire length c are connected to a third cutting edge 21 of the second tool leg 2, which extends over a combined the combined length d of the first and second cutting edges 12, 13, can be moved one above the other.

[0086] A hand-operated cutting tool, characterized in that the projecting shoulder 14 is formed only on the first tool leg 2.

[0087] A manually operable cutting tool, which is characterized in that in a first half, seen from the rotation axis x, of a length e of the third cutting edge 21 measured in vertical projection relative to a third radial R3, a third tip-like connecting region 24 is formed, which in the first closed position also forms part of the peripheral edge 29 of the opening region.

[0088] A manually operable cutting tool, which is characterized in that the third radial R3 extending from the rotation axis x in the pivoting plane E, which radial line rests against the third tip-like connecting region 24 from the outside, viewed opposite to the closing direction S, does not penetrate the second tool leg 3 beyond the third tip-like connecting region 24.

[0089] A hand-operated cutting tool, characterized in that the first tip-like connecting portion 19 and the third tip-like connecting portion 24 are offset from one another in the radial direction R.

[0090] A hand-operated cutting tool, characterized in that the third tip-like connecting portion 24 is formed closer to the rotation axis x than the first tip-like connecting portion 19.

[0091] A manually operable cutting tool, which is characterized in that the first and second cutting edges 12, 13 of the first tool leg 2 are designed as a peripheral edge 27 of a first contact and support surface 28 of the first tool leg 2, that the third cutting edge 13 of the second tool leg 3 is designed as a peripheral edge 29 of a second contact and support surface (30) of the second tool leg (3), that the first contact and support surface 28 is moved over one another or is aligned with the second contact and support surface 30 in the closed position and that the first and second contact and support surfaces 28, 30 each run in the same continuous plane.

[0092] A manually operable cutting tool, characterized in that the first cutting area 15 of the first cutting edge 12 and the first cutting area 17 of the second cutting edge 13 extend along the same second radial R2 running in the pivoting plane E with respect to the rotation axis x.

[0093] A hand-operated cutting tool, characterized in that the length b of the first cutting edge 12 removed on the second radial R2 up to a point of the first cutting edge 12 projecting furthest in the closing direction corresponds to twice or less of a projection dimension of this point, in the direction perpendicular to the second radial R2.

[0094] A manually operable cutting tool, which is characterized in that the first contact and support surface 28 of the first tool leg 2 is continuously formed, including the shoulder 14, with a cutting edge 31, 32 having a cutting angle a, a'.

[0095] A manually operable cutting tool, which is characterized in that the cutting angle a, a' is different over the length b, c of the first and / or second cutting edge 12, 13 of the first tool leg 2.

[0096] All disclosed features are essential to the invention (individually, but also in combination with one another). The disclosure of the application hereby fully incorporates the disclosure content of the associated / attached priority documents (copy of the prior application), also for the purpose of incorporating features of these documents into claims of the present application. The subclaims characterize, even without the features of a referenced claim, independent inventive developments of the prior art with their features, in particular for filing divisional applications based on these claims. The invention specified in each claim may additionally comprise one or more of the features provided in the above description, in particular with reference numbers, and / or specified in the list of reference numbers.The invention also relates to designs in which individual features mentioned in the above description are not implemented, in particular insofar as they are clearly unnecessary for the respective intended use or can be replaced by other technically equivalent means. List of reference symbols 1 cutting tool 28 first contact and support surface 2 first tool leg che 3 second tool leg 29 second edge 4 hinge pins 30 second contact and support 5 Handle section area 6 Handle section 31 Cutting edge 7 cutting jaw 32 cutting edge 8 Cutting jaw 33 Closing range 9 Work surface 34 Area 10 Work surface 35 first opening area 11 Cutting mouth 36 second opening area 12 first cutting edge 37 point 13 second cutting edge 38 flank 14 Shoulder 39 Frontal area 15 first cutting area 40 point 16 second cutting area 41 section 17 first cutting area 42 concave section 18 second cutting area 43 line 19 first connection area 44 cable 20 second connection area 21 third cutting edge a vertical 22 first cutting area b length 23 second cutting area c length 24 third connection area d length 25 cable sheath e length 26 core f radius dimension 27 first edge j radius k height m height h height t depth v board dimension x rotation axis E Swivel plane G Straight ml measure M2 dimension MP1 measuring point MP2 measuring point R Radial direction RI first radial R2 second radial R3 third radial R4 fourth radial s intersection point S Closing direction ZI first cutting zone Z2 second cutting zone a cutting angle a' cutting angle ß cutting angle

Claims

Claims 1. A manually operable cutting tool (1) with two tool limbs (2, 3), a first (2) and a second tool limb (3), which are pivotable relative to one another about a rotational axis (x) along a pivoting plane (E), wherein the tool limbs (2, 3) form grip sections (5, 6) on one side of the rotational axis (x) and a cutting mouth (11) on the other side, wherein further working surfaces (9, 10) of the cutting mouth (11) are formed with cutting edges (12, 13, 21) and a working surface (9) of the first tool limb (2) has first and second cutting edges (12, 13), wherein the first cutting edge (12) of the first tool limb (2) merges into a shoulder (14) projecting in a closing direction (S) relative to the second cutting edge (13) at the transition to the second cutting edge (13),wherein the shoulder (14) comes into a superimposed position with the second tool leg (3) for the first time in a closed region (33) during a movement into a closed position of the cutting tool (1) in a first closed position, wherein in the first closed position the closed region (33), seen from the axis of rotation (x) in a radial direction (R), is provided at a radial end of an opening region (35) remaining between the first cutting edge (12) of the first tool leg (2) and the second tool leg (3) in the first closed position, characterized in that the first cutting edge (12) of the first tool leg (2) has two first and second cutting regions (15, 16) formed one behind the other in the radial direction (R), which merge into one another via a first tip-like connecting region (19),wherein the first tip-like connecting region (19) in the first closed position also forms part of a peripheral edge (27) of the opening region (35), and that a first radial (RI) extending from the rotation axis (x) in the pivot plane (E), which is arranged on the first tip-like connecting region (19) from the outside, opposite to the closing direction (S), rests, passes through the shoulder (14) at approximately half a height (h), measured on a perpendicular (a) to a second radial (R2) running in the pivoting plane (E), which second radial (R2) touches the second cutting edge (13) of the first tool leg (2) at a lowest point (37) seen opposite to the pivoting direction (S), wherein the perpendicular (a) runs through a region (34) of the shoulder (14) which projects furthest in the pivoting direction (S). Hand-operated cutting tool (1) according to the features of the preamble of claim 1 or according to claim 1, characterized in that the first and second cutting edges (12, 13) of the first tool leg (2) each have two first and second cutting regions (15, 16 and 17, 18) arranged one behind the other in the radial direction (R), which merge into one another via a first and a second tip-like connecting region (19, 20), wherein the tip-like connecting regions (19,20) are each formed as a convex transition which separates the first and second cutting regions (15, 16 and 17, 18), each formed with a concave peripheral edge (27), and in that a straight line (G) applied externally to the tip-like connecting regions (19, 20) passes through the shoulder (14) formed between the first and second cutting edges (12, 13), wherein a projection dimension (v) of the shoulder (14) removed perpendicular to the straight line (G) corresponds to four times or more of a greatest depth (t) of the region of the first cutting region (17) of the second cutting edge (13) spanned by the straight line (G), removed by the straight line (G) in the opposite direction perpendicular to the straight line (G). Hand-operated cutting tool (1) with two tool limbs (2, 3), a first (2) and a second tool limb (3), which are arranged around a, axis of rotation (x) along a pivoting plane (E) relative to one another, wherein the tool limbs (2, 3) form grip sections (5, 6) on one side of the axis of rotation (x) and a cutting mouth (11) on the other side, wherein further working surfaces (9, 10) of the cutting mouth (11) are formed with cutting edges (12, 13, 21) and a working surface (9) of the first tool limb (2) has first and second cutting edges (12, 13), wherein the first cutting edge (12) of the first tool limb (2) merges at the transition to the second cutting edge (13) into a shoulder (14) projecting in a closing direction (S) relative to the second cutting edge (13), wherein the shoulder (14) upon movement into a closed position of the cutting tool (1) in a first closed position comes for the first time in a closing region (33) into a superimposed position with the second tool limb (3), wherein in the first Closed position of the closing area (33), seen from the axis of rotation (x) in a radial direction (R),at a radial end of an opening region (35) remaining between the first cutting edge (12) of the first tool leg (2) and the second tool leg (3) in the first closed position, characterized in that the first cutting edge (12) of the first tool leg (2) has two first and second cutting regions (15, 16) arranged one behind the other in the radial direction (R), which merge into one another via a first tip-like connecting region (19), in that the shoulder (14) formed only on the first tool leg (2) extends with respect to a radially outer section of a first peripheral edge (27) facing the second cutting edge (13), relative to a fourth radial line (R4) emanating from the axis of rotation (x), which radial line penetrates the shoulder (14) at an intersection point (s) in the section, relative to the intersection point (s) approximately centrally at a height of the shoulder (14),and which section extends approximately over half of its extent or more along a tangent (T) to the fourth radial (R4) in the intersection point (s), the height being determined from a respective perpendicular to, the fourth radial (R4) removed dimension (M1, M2) up to a first dimension point (MP1) of the shoulder (14) itself, which is furthest away from the fourth radial (R4) in the closing direction, and up to a second dimension point (MP2) of the second cutting edge (13), which is furthest away against the closing direction, and in that the peripheral edge in the section, viewed from the intersection point (s), transitions into a convex curvature towards the first dimension point (MP1) and into a concave curvature towards the second dimension point (MP2). Cutting tool according to one of the preceding claims, characterized in that the first cutting edge (12) can be moved over one another over its entire length (b) and the second cutting edge (13) over approximately its entire length (c) with a third cutting edge (21) of the second tool leg (2), which extends over a combined length (d) of the first and second cutting edges (12, 13).Cutting tool according to one of claims 1, 2 or 4, insofar as claim 4 is not dependent on claim 3, characterized in that the projecting shoulder (14) is formed only on the first tool leg (2). Cutting tool according to one of the preceding claims, characterized in that in a first half, viewed from the axis of rotation (x), of a length (e) of the third cutting edge (21) measured in vertical projection relative to a third radial (R3), a third tip-like connecting region (24) is formed, which in the first closed position likewise forms part of the peripheral edge (29) of the opening region. Cutting tool according to claim 6, characterized in that the third radial line (R3) extending from the rotational axis (x) in the pivoting plane (E), which radial line bears against the third tip-like connecting region (24) from the outside, viewed opposite to the closing direction (S), does not penetrate the second tool leg (3) beyond the third tip-like connecting region (24). Cutting tool according to one of the preceding claims, characterized in that the first tip-like connecting region (19) and the third tip-like connecting region (24) are offset from one another in the radial direction (R). Cutting tool according to claim 8, characterized in that the third tip-like connecting region (24) is formed closer to the rotational axis (x) than the first tip-like connecting region (19).Cutting tool according to one of the preceding claims, characterized in that the first and second cutting edges (12, 13) of the first tool leg (2) are designed as a peripheral edge (27) of a first contact and support surface (28) of the first tool leg (2), in that the third cutting edge (13) of the second tool leg (3) is designed as a peripheral edge (29) of a second contact and support surface (30) of the second tool leg (3), in that the first contact and support surface (28) is partially superimposed or aligned with the second contact and support surface (30) in the closed position and partially overlaps, and in that the first and second contact and support surfaces (28, 30) each run in or along the same continuous plane. Cutting tool according to one of the preceding claims, characterized in that the first cutting region (15) of the first cutting edge (12) and the first cutting region (17) of the second cutting edge (13) extend along the same second radial (R2) running in the pivot plane (E) with respect to the rotation axis (x). Cutting tool according to one of the preceding claims, characterized in that the length (b) of the first cutting edge (12) removed along the second radial (R2) up to a point of the first cutting edge (12) projecting furthest in the closing direction corresponds to twice or less of a projection dimension of this point, in the direction perpendicular to the second radial (R2).Cutting tool according to one of the preceding claims, characterized in that the first contact and support surface (28) of the first tool leg (2) is formed continuously, including the shoulder (14), with a cutting edge (31, 32) having a cutting angle (a, a'). Cutting tool according to claim 13, characterized in that the cutting angle (a, a') varies over the length (b, c) of the first and / or second cutting edge (12, 13) of the first tool leg (2).

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