Cutting tool for cutting a cutting material

The cutting tool with extended distal ends and acute angle cutting plane, combined with damping parts, addresses the issue of unfavorable cutting patterns, enabling precise and efficient cutting of threaded bolts without post-processing.

WO2026074087A1PCT designated stage Publication Date: 2026-04-09GUSTAV KLAUKE GMBH +1
View PDF 17 Cites 0 Cited by

Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Filing Date
2025-10-02
Publication Date
2026-04-09

AI Technical Summary

Technical Problem

Existing cutting tools for threaded bolts result in unfavorable cutting patterns that prevent or complicate the screwing of a screw nut onto the bolt without further post-processing of the cutting edge.

Method used

The cutting tool design features cutting jaws with distal ends extending beyond the cutting plane, an acute angle between the cutting plane and longitudinal axis, and damping parts to stabilize the cutting process, allowing for a favorable cutting pattern and precise cutting results without tear-off areas.

Benefits of technology

The design enables a smooth cutting process that allows a screw nut to be directly screwed onto the threaded bolt without further processing of the cutting edge, enhancing stability and precision.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure EP2025078339_09042026_PF_FP_ABST
    Figure EP2025078339_09042026_PF_FP_ABST
Patent Text Reader

Abstract

The invention relates to a cutting tool (1), preferably for cutting a cutting material (S), such as a threaded bolt (7), with a first and a second cutting jaw (4, 5), wherein the first and the second cutting jaw (4, 5) are pivotable relative to one another to carry out a cutting process, comprise a first and a second proximal end and a first and a second distal end (65, 66, 67, 68) and a first and a second cutting surface (35, 36), wherein the first and the second proximal end (65, 66) are designed to be acted upon by a drive unit (2) and the first and the second distal end (67, 68) form a free end of the first and the second cutting jaw (4, 5), wherein furthermore during a cutting process the first and the second cutting surface (35, 36) in a cutting plane (E) move along one another. In order to specify a cutting tool that enables an improved cutting result to be achieved when cutting a threaded bolt, it is proposed that in a direction perpendicular to the cutting plane (E), the first distal end (67) of the first cutting jaw (4) extends on a different side of the cutting plane (E) than the first cutting surface (35) and the second distal end (68) of the second cutting jaw (5) extends on a different side of the cutting plane (E) than the second cutting surface (36).
Need to check novelty before this filing date? Find Prior Art

Description

DescriptionCutting tool for cutting a cutting material field of technology

[0001] The invention further relates to a cutting tool, preferably for cutting a cutting material, such as a threaded bolt, with a first and a second cutting jaw, wherein the first and the second cutting jaw can be pivoted relative to one another to carry out a cutting process, have a first and a second proximal end and a first and a second distal end and a first and a second cutting surface, wherein the first and the second proximal end are designed to be acted upon by a drive device and the first and second proximal end form a free end of the first and the second cutting jaw, wherein furthermore during a cutting process the first and second cutting surfaces move along one another in a cutting plane.

[0002] The invention relates to a cutting tool for cutting a cutting material, such as a threaded bolt, comprising a first cutting jaw with a first cutting tool, the first cutting tool having a first cutting surface and a first receptacle extending along a longitudinal axis and having a thread structure extending substantially transversely to the longitudinal axis into the first cutting tool, and a second cutting jaw with a second cutting tool, the second cutting tool having a second receptacle extending substantially parallel to the longitudinal axis and having a thread structure extending substantially transversely to the longitudinal axis into the second cutting tool, the second cutting tool having a second cutting surface, the thread structure having a pitch having thread crests and thread valleys, one of the thread crests and / or one of the thread valleys running into the first or second cutting surface, and the first and second cutting surfaces facing each other along a cutting plane during a cutting operation.31275N1PCT 25.09.2025 mue / ni / fr

[0003] The invention also relates to a cutting tool for cutting a cutting material such as a threaded bolt, with a first and a second cutting jaw.State of the art

[0004] Cutting tools of the type in question, in particular those designed as motor-driven hand tools, are known in the prior art.

[0005] EP 1 459825 Al (also published as US 2004 / 0181947A1) discloses a cutting tool designed as a handheld device. Cutting inserts with half-shell-shaped receptacles having a threaded structure are held in the cutting jaws, wherein the cutting surfaces extend in a cutting plane oriented perpendicular to the longitudinal axis of the receptacle. With such an alignment of the cutting plane at a right angle relative to the longitudinal axis of the receptacle, after cutting a cutting material such as a threaded bolt, for example, the cutting edge on the bolt side generally results in such an unfavorable cutting pattern that, without remachining the cutting edge, screwing a screw nut, for example, onto the threaded bolt is impossible or only possible with difficulty.Summary of the invention

[0006] Based on the above-described prior art, the object of the invention is to further improve a cutting tool of the above mentioned type.

[0007] According to a first aspect of the present invention, the object can be achieved in that, in a direction perpendicular to the cutting plane, the first distal end of the first cutting jaw extends on a different side of the cutting plane than the first cutting surface and that the second distal end of the second cutting jaw extends on a different side of the cutting plane than the second cutting surface.31275N1PCT 25.09.2025 mue / ni / fr

[0008] Preferably, each cutting jaw extends from the associated cutting surface beyond the cutting plane and / or beyond a displacement plane of the cutting jaws. This extension can extend over the entire pivoting path of the cutting jaws. The cutting plane is at least penetrated by the distal end of the cutting jaw or crossed by the distal end. Such a configuration allows for increased stability of the cutting tool overall, particularly during a cutting operation, which further leads to an improved cutting result.

[0009] Such an overlapping design of the distal ends is advantageous for cutting jaws for cutting threaded bolts, as described above, but also for cutting jaws for cutting other, possibly rod-like objects without thread, such as bolts or round bars.

[0010] According to a further aspect of the present invention, the above object is solved by a cutting tool in which the cutting plane runs at an acute angle with respect to the longitudinal axis.

[0011] Due to the proposed alignment of the cutting plane, the thread crests and / or valleys of the thread structures of both mounts can run into the cutting surfaces at a favorable acute angle. This creates a favorable cutting pattern that allows, for example, a screw nut to be screwed onto the threaded bolt without further post-processing of the cutting edge of the workpiece.

[0012] There may be an acute angle between the cutting plane and the longitudinal axis of about 80 degrees to about 90 degrees, preferably between about 83 degrees and about 87 degrees, more preferably about 85 degrees.

[0013] Furthermore, the object can be achieved in that the first and / or second cutting jaw has a damping part which is arranged on the first and / or second31275N1PCT 25.09.2025 mue / ni / frcutting jaw in a cutting direction and which moves along with a cutting process and has a damping part impact surface in the course of the cutting process for acting on the material to be cut, upstream of a cutting edge of the first and / or second cutting jaw.

[0014] During a cutting process, the damping element can initially support the damping element's impact surface against the material to be cut. This support occurs - viewed in the cutting direction - preferably before the cutting edge of the cutting jaw carrying the damping element comes into contact with the material to be cut. This can stabilize the material to be cut in its relative orientation to the cutting jaw.

[0015] In the course of the further displacement of the cutting jaw carrying the damping part in the cutting direction, the damping part is loaded, particularly in the area of the damping part impact surface, in such a way that, depending on the design of the damping part, a plastic deformation or a displacement against spring force occurs, while the cutting edge trailing cuts through the material to be cut.

[0016] By means of the damping part, a significant damping of the penetrating force that can occur at the moment of cutting through the material to be cut can be achieved.

[0017] The damping part can be a permanently elastic part, for example consisting of a rubber material or an elastomer material such as EPDM (ethylene propylene diene rubber).

[0018] Only one cutting jaw can be provided with a damping part, either directly or indirectly. According to one possible embodiment, both cutting jaws31275N1PCT 25.09.2025 mue / ni / frcan also each have a damping part, which can also be designed differently, for example, with regard to the damping part's impact surfaces.

[0019] The damping part can also be attached directly to the cutting jaw. Alternatively, it can also be attached indirectly, for example, if the damping part is arranged on a cutting insert.

[0020] In a further embodiment, the acute angle of the cutting plane to the longitudinal axis can correspond to the pitch of the thread structure formed in the receptacle. For an exemplary pitch angle of the thread structure of 3 degrees to 5 degrees to a cross-sectional plane oriented transversely to the longitudinal axis, the cutting plane can extend at an acute angle of 85 degrees to 87 degrees to the longitudinal axis.

[0021] The cutting surface can be formed at a transition into the receptacle with a cutting edge that acts on the threaded bolt during the cutting process. Furthermore, the first and / or second cutting surfaces can extend substantially transversely and perpendicularly to the longitudinal axis.

[0022] Such a cutting edge can essentially coincide with a thread crest or a thread valley of the thread structure of this receptacle, so that a cutting plane can be created in which there is essentially no change between thread crest and thread valley with regard to the first cutting surface. This allows for a favorable run-out of the bolt thread into the resulting cutting surface of the threaded bolt after a cutting process, which thread run-out allows a screw nut to be screwed directly onto the thread.

[0023] The thickness of a thread crest, viewed in the direction of the longitudinal axis, can be smaller than the thickness of the cutting edge of the first cutting31275N1PCT 25.09.2025 mue / ni / frsurface, viewed in the same direction. For example, the cutting edge thickness can be approximately 0.1 to 0.9 times, or even 0.4 to 0.6 times the thickness of a thread crest. Further, viewed across the cutting edge's extension, different, possibly continuously increasing or continuously decreasing, cutting edge thicknesses can result.

[0024] The cutting edge of the second cutting surface, however, can be designed in such a way that a thread crest and a thread valley run partly into this cutting edge.

[0025] In one possible embodiment, the first cutting tool can be designed as a first cutting insert and the second cutting tool as a second cutting insert.

[0026] According to one possible embodiment, the first and / or second cutting insert can have a trapezoidal contour in a plan view of the side formed with the receptacle. One of the trapezoidal legs can, as is also preferred, form the cutting surface with the cutting edge. The longitudinal axis can be aligned parallel to the trapezoidal base.

[0027] The first and / or second cutting insert can also be rectangular in this plan view, for example. The longitudinal axis of the holder is aligned at an acute angle to the cutting surface.

[0028] In one possible embodiment, the first cutting insert is mounted in the first cutting jaw and / or the second cutting insert is mounted in the second cutting jaw in an interchangeable manner. Replacing one or both cutting inserts, for example, with cutting inserts for cutting threaded bolts with a different diameter and / or a thread with a different thread pitch, can advantageously be performed without the aid of a separate tool.31275N1PCT 25.09.2025 mue / ni / fr

[0029] For interchangeable mounting, the first and / or second cutting jaws can have a receiving pocket for the first or second cutting insert. This receiving pocket can be designed to allow insertion or removal of the cutting insert in a linear direction. Furthermore, the receiving pocket can be designed to accommodate different inserts, in particular different cutting inserts.

[0030] Viewed in the direction of the longitudinal axis, a first pocket region of the receiving pocket can completely penetrate the first and / or second cutting jaw. This first pocket region can be open at both ends, viewed in the longitudinal direction. A cutting insert received in the receiving pocket can thus be visible and exposed at least in part, associated with a jaw surface of the cutting jaw having the receiving pocket.

[0031] Furthermore, a second pocket region of the receiving pocket can only partially penetrate the first and / or second cutting jaws in the direction of the longitudinal axis. According to one possible embodiment, the second pocket region can merge into the first pocket region and thereby form an extension of the first pocket region in a direction transverse to the longitudinal axis.

[0032] The second pocket region can be designed to be closed on both sides, viewed in the direction of the longitudinal axis, at least over a portion of a height defined in the insertion direction of the first and / or second cutting insert. This can result in a groove-like pocket region. This can serve to guide the cutting insert during an insertion process into the cutting jaw and / or to secure the cutting insert in the inserted use position.

[0033] In a further embodiment, the first and / or second cutting insert can have an engagement projection adapted to the second pocket region. This engagement projection can be adapted, with respect to its cross-sectional31275N1PCT 25.09.2025 mue / ni / frconfiguration viewed transversely to the insertion direction, to the cross-sectional configuration of the second pocket region viewed in the same direction and can serve to guide and precisely position the cutting insert in the cutting jaw.

[0034] Furthermore, the first and / or second cutting jaws associated with the receiving pocket can have a blocking projection movable relative to the cutting insert between a blocking position and a release position. The blocking projection preferably serves to secure, for example, a locking position, the cutting insert in the position inserted in the cutting jaw, which corresponds to the use position.

[0035] The blocking projection can be assigned to the second pocket region, so that the blocking projection can be designed and arranged to cooperate with the engagement projection of the cutting insert. By means of the blocking projection, in cooperation with the engagement projection, a fixation, for example a locking fixation, of the cutting insert in the receiving pocket can be achieved.

[0036] Furthermore, such locking can be achieved automatically and preferably without any further action by the user simply by inserting the cutting insert into the receiving pocket. For this purpose, the locking projection can be movable against spring force. Preferably, the spring provided for this purpose loads the locking projection toward the locking position.

[0037] In a further embodiment, the blocking projection can be overrun during the insertion of the cutting insert into the receiving pocket, overcoming the restoring force of the spring.31275N1PCT 25.09.2025 mue / ni / fr

[0038] The first and / or second cutting insert can furthermore have a recess for receiving the blocking projection or a portion of the blocking projection. For example, due to a positive fit achieved in the inserted position between the blocking projection and the recess of the cutting insert, the cutting insert can be blocked in the receiving pocket. In the blocked position, the cutting insert cannot be removed from the receiving pocket. Releasing the blocked position requires user intervention, in particular, a deliberate movement of the blocking projection from the blocked position to a release position, counter to the restoring force of the spring.

[0039] The recess can be a depression formed in the direction of the longitudinal axis. The blocking projection is preferably designed to match the depth and / or the contour of the depression viewed transversely to the depth direction, at least over a partial area that interacts with the depression. Thus, the depression, viewed transversely to the depth direction, can, for example, have a circular segment-shaped outline, into which a circular disk-shaped portion of the blocking projection can engage in a substantially positive-locking manner.

[0040] The recess can further be formed on the engagement projection of the cutting insert that can be inserted into the second pocket area of the receiving pocket.

[0041] In one possible embodiment, the blocking projection can be movable along the longitudinal axis from the blocking position to the release position and vice versa. The spring loading the blocking projection can act accordingly along the longitudinal axis.31275N1PCT 25.09.2025 mue / ni / fr

[0042] The cutting tool can be provided with a connected drive unit for moving the cutting jaws from a basic position towards a cutting position that cuts through the threaded bolt.

[0043] The cutting tool can be mounted on a mounting head of a drive unit to form a handy cutting device. The drive unit can, for example, be designed in the form of an electrically operated motor part, as is known, for example, from WO 2022 / 184939 Al.

[0044] The first and second cutting jaws can be pivoted relative to each other to perform the cutting process, so that the cutting surfaces of the cutting jaws move along each other in a cutting plane. Such pivoting displacement can be achieved by the drive device simultaneously acting on the ends of the cutting jaws facing the drive device.

[0045] Alternatively, the first and second cutting jaws can be linearly movable relative to each other to perform the cutting process. The direction of displacement can be perpendicular to the direction of the longitudinal axis of the cutting insert holder. For a given linear displacement, for example, one cutting jaw can be stationary, with the cutting surface of the other, movable cutting jaw moving along its cutting surface.

[0046] Due to the effect of shear forces during the cutting process, the solutions known from the prior art can result in a displacement, albeit minimal, of the first and / or second cutting surface away from or beyond the cutting plane, particularly towards the end of the cutting process, i.e., shortly before the bolt to be cut is completely severed. This leads to an unsatisfactory cutting result. Raised or grooved tear-off areas can occur in the area of the cut surface of the31275N1PCT 25.09.2025 mue / ni / frsevered bolt instead of the otherwise almost smooth cutting areas. Such cutting surfaces generally require remachining before the bolt can be used again.

[0047] To counteract this disadvantageous effect, the first and second distal ends of the two cutting jaws can, when the cutting jaws are retracted, prevent each other from moving beyond the cutting plane in the direction of the second or first cutting surface. If the cutting jaws are subjected to shear stress during the cutting process, the cutting jaws may partially support each other via their distal ends. The cutting surfaces therefore remain on their assigned side of the cutting plane over the entire displacement range, even when subjected to such a shear stress. This results in precise cutting guidance and, as a result, a good cutting result, essentially without tear-off areas on the bolt to be cut.

[0048] The ranges or 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, thus possibly also dimensionless. For example, the specification 80 to 90 degrees also includes the disclosure of 80.1 to 90 degrees, 80 to 89.9 degrees, 80.1 to 89.9 degrees, etc. This disclosure can serve, on the one hand, to delimit a specified range boundary 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

[0049] The invention is explained in more detail below using exemplary embodiments. They show:Fig. 1 a perspective view of a cutting tool with cutting jaws in a cutting jaw closed position, relating to a first embodiment;31275N1PCT 25.09.2025 mue / ni / frFig. 2 in a view according to arrow II in Figure 1 an enlargement of a cutting mouth area with cutting inserts accommodated in the cutting jaws;Fig. 3 the section along the line III - III in Figure 2; Fig. 4 the section along the line IV - IV in Figure 2;Fig. 5 a cutting insert in perspective individual view;Fig. 6 the cutting insert in a further perspective view;Fig. 7 the view towards the cutting insert according to arrow VII inFigure 5; Fig. 8 the view towards the cutting insert according to arrow VIII in Figure 7;Fig. 9 the view against the cutting insert according to arrow IX in Figure 7;Fig. 10 the view against the cutting insert according to arrow X in Figure 7;Fig. 11 in perspective exploded view the area of a receiving pocket for a cut- ting insert and a blocking for the cutting insert;Fig. 12 a further perspective exploded view of the receiving pocket area according to Figure 11;Fig. 13 the section along the line XIII - XIII in Figure 4;31275N1PCT 25.09.2025 mue / ni / frFig. 14 the section along the line XIV - XIV in Figure 1;Fig. 15 an alternative embodiment of a cutting insert in a representation according to Fig. 9;Fig. 16 in perspective view the arrangement of the cutting tool of the first embodiment according to Figure 1 on a drive device, concerning a cutting jaw open position;Fig. 17 an enlarged view according to arrow XVII in Figure 16;Fig. 18 the view in the direction of arrow XIII in Figure 17 towards the cutting tool;Fig. 19 a perspective view of a cutting tool with cutting jaws in a cutting jaw open position, relating to a second embodiment;Fig. 20 a perspective view of the arrangement of the cutting tool of the second embodiment according to Fig. 19 on a drive unit;Fig. 21 the view in the direction of arrow XXI in Figure 20 towards the cutting tool;Fig. 22 a sectional view taken along the line XXII - XXII in Figure 21;Fig. 23 a perspective view of the arrangement of a cutting tool in a third embodiment on a drive device;31275N1PCT 25.09.2025 mue / ni / frFig. 24 the view in the direction of arrow XXIV in Figure 23 against the cutting tool of the third embodiment;Fig. 25 a sectional view cut along the line XXV - XXV in Figure 24;Fig. 26 a perspective view of the arrangement of a cutting tool on a drive device, relating to a fourth embodiment;Fig. 27 a representation corresponding to Fig. 1, relating to a further embodiment with a damping part;Fig. 28 is an exploded perspective view according to Fig. 11, relating to the embodiment according to Fig. 27;Fig. 29 a representation of the embodiment according to Fig. 27, essentially corresponding to Fig. 2, relating to a cutting mouth open position;Fig. 30 a subsequent representation to Fig. 29, with pivoting displacement of the cutting jaw carrying the damping part in the cutting direction and contact of the damping part with a material to be cut;Fig. 31 a subsequent representation to Fig. 30, with further pivotal displacement of the cutting jaw carrying the damping part in the cutting direction and elastic deformation of the damping part;Fig. 32 in a side view a further embodiment of a cutting tool with a damping part.31275N1PCT 25.09.2025 mue / ni / frDescription of the embodiments

[0050] A cutting tool 1 according to a possible first embodiment is illustrated and described, initially with reference to Figures 1 to 18. Figures 19 to 22 show a second embodiment, and Figures 23 to 25 show a third embodiment. Figure 26 shows a fourth embodiment.

[0051] The cutting tool 1 can be designed for attachment to a mounting head 11 of a drive unit 2, via which drive unit 2 the cutting tool 1 can be driven by a motor.

[0052] For example, the drive unit 2 according to the first embodiment (see in particular Figure 15) can be provided with a substantially pistol-shaped drive housing 3, on which drive housing 3 the cutting tool 1 can be mounted via the mounting head 11. A drive device with a substantially pistol-shaped drive housing is known, for example, from EP 1 084 798 Bl (also published as US 6,718,870 B2). Alternatively, the drive unit 2 according to the second or third embodiment (see in particular Figures 20 and 23) can also be designed as a substantially rod-like device— particularly with respect to the drive housing 3. Such a rod-like device is known, for example, from WO 2003 / 084 719 A2 (also published as US 2005 / 0 120 770 Al).

[0053] The cutting tool 1 has two cutting jaws, a first cutting jaw 4 with a first cutting tool 30 and a second cutting jaw 5 with a second cutting tool 31. In the first and second embodiments, these can be pivoted toward one another about a pivot axis x in a cutting direction T under the action of force via the drive unit 2.

[0054] Alternatively, according to the configuration of the third embodiment, one of the cutting jaws 4 or 5 can be designed as a fixed jaw and the other cutting jaw 5 or 4 as a movable jaw, in the third embodiment in particular as a31275N1PCT 25.09.2025 mue / ni / frlinearly movable jaw. Such a tool is known, for example, from WO 2022 / 184939 Al (US 2024 / 0139837 Al).

[0055] Between the cutting jaws 4 and 5, in a cutting jaw open position, a cutting mouth 6 is formed, which is penetrated by the material S to be cut, for example a threaded bolt 7, during a cutting process.

[0056] The displacement of one or both cutting jaws 4 and 5 can be achieved, for example, with the aid of hydraulic power generated by a motor part 12 of the drive unit 2 when triggered by the user. For this purpose, the drive unit 2 can have a pump that can be actively started by the user actuating a switch 8 on the unit.

[0057] Furthermore, the drive unit 2 can be provided with an accumulator 9 for supplying power to the drive unit 2, in particular to the pump provided in the motor part 12 and to other electrical or electronic devices. Alternatively, the electrical power can also be provided via a cable connection, with the embodiment with the accumulator 9 integrated into the drive unit 2 being preferred.

[0058] The drive device 2 could alternatively also have a spindle drive. Such a tool is known, for example, from WO 2014 / 009363 Al (US 10468 847 B2).

[0059] As an alternative to a substantially one-piece design of the drive device 2, an embodiment may be provided, as shown in Figure 26, in which the motor part 12 of the drive unit 2, which essentially comprises a pump and the accumulator 9 or a cable connection, is formed in a separately mounted drive housing 3, wherein the pump is connected via a power transmission line 10, preferably in the form of a hydraulic line, to the mounting head 11 holding the cutting tool 1 for driving the displaceable cutting jaw. This allows a spacing of the mounting31275N1PCT 25.09.2025 mue / ni / frhead 11 from the motor part 12 to be achieved depending on the length of the power transmission line 10. Such a design is known, for example, from WO 2016 / 112153 A2 (also published under US 11 749977 A2).

[0060] If the cutting jaws 4 and 5 are designed as pivoting jaws, they preferably have, in the region of the proximal ends 64, 65 facing away from the cutting mouth 6, impact surfaces 13 directed towards one another in the form of curved tracks for the application of rollers 14 of the drive device 2.

[0061] The rollers 14 can be displaced, for example, in a linear direction transverse to the pivot axis x via a piston 19 movable along a displacement axis z - or a section connected to the piston - of the drive unit 2.

[0062] According to the first embodiment shown, for the scissor-like interaction of the interchangeable cutting jaws 4 and 5, these can be pivotally held between two connecting tabs 16 by means of bolts 15 passing through bores 20 of the cutting jaws 4 and 5.

[0063] The connecting tabs 16 can in turn be fastened to a fork-shaped receiving neck 18 of the mounting head 11 via a locking bolt 17.

[0064] According to the second embodiment shown further, the pivotable mounting of the cutting jaws 4 and 5 can also be provided by a bolt 15 which passes through both cutting jaws 4 and 5 in the region of a bore 20 and is held directly in the receiving neck 18 of the drive device 2.

[0065] The cutting jaws 4 and 5 can also be loaded into a cutting jaw open position via a spring 21, in particular a cylinder compression spring according to Figure 22.31275N1PCT 25.09.2025 mue / ni / fr

[0066] In the third embodiment shown below, one of the cutting jaws 4 or 5 is designed as a fixed jaw (for example, the second cutting jaw 5) and the other as a jaw (for example, the first cutting jaw 4) that can be linearly displaced in a cutting direction T. Both cutting jaws 4 and 5 are accommodated in a support frame 22, wherein the fixed jaw (cutting jaw 5) can be replaceably mounted in a preferably pivotable section 23 of the support frame 22.

[0067] When the switch 8 is actuated, the cutting jaws 4 and 5 are moved past each other, either as a result of a pivoting movement of both cutting jaws 4 and 5 or as a result of a linear displacement of the movable jaw (cutting jaw 5) in the direction of the fixed jaw (cutting jaw 4).

[0068] This results in a cutting plane E between the two cutting jaws 4 and 5. Furthermore, a displacement plane B is created, along which the cutting jaws 4 and / or 5 pivot or move linearly. In the displacement plane B, the pivot axis x of the cutting jaws 4 and / or 5 appears as a point and / or the displacement axis z of the piston 19 appears as a line.

[0069] The cutting jaws 4 and 5 are preferably not directly designed for cutting a workpiece inserted into the cutting mouth 6. Rather, the cutting tools 30 and 31 can be designed as interchangeable inserts, for which purpose the first cutting jaw 4 can have a first receiving pocket 24 and the second cutting jaw 5 can have a second receiving pocket 25, into which receiving pockets 24 and 25, first and second cutting inserts 26 and 27 forming first and second cutting tools 30 and 31 can be received.

[0070] The first and second cutting inserts 26 and 27 each have a half-shell- shaped first and second receptacle 28 and 29. Each receptacle 28, 29 has a thread31275N1PCT 25.09.2025 mue / ni / frstructure 32 with thread crests 33 and thread valleys 34, extending substantially transversely to the longitudinal axis y in the receptacle 28 and 29, respectively.

[0071] With reference to a cross-sectional plane perpendicular to the longitudinal axis y, receptacles 28, 29 can result which extend in a bowl-like manner over 180 degrees.

[0072] The longitudinal axes y of the cutting inserts 26 and 27 run perpendicular to the cutting plane E in the use position.

[0073] The thread structure 32 is delimited in the direction of the longitudinal axis y by a first (with respect to the first cutting insert 26) and a second (with respect to the second cutting insert 27) cutting surface 35 and 36 extending transversely and perpendicularly to the longitudinal axis y.

[0074] The first and second cutting surfaces 35 and 36 are aligned facing each other during a cutting process and, during such a cutting process, move along each other in the cutting plane E. Advantageously, the cutting plane E forms an acute angle a of, for example, approximately 85 degrees with the longitudinal axis y.

[0075] In a further embodiment, the acute angle a can be adapted to the pitch of the thread structure 32 formed in the receptacle 28 or 29. With an exemplary pitch angle [3 of the thread structure 32 of approximately 3 degrees to approximately 5 degrees relative to a cross-sectional plane c directed transversely to the longitudinal axis y, the cutting plane E can extend substantially in the same direction at an acute angle a of approximately 85 degrees to approximately 87 degrees relative to the longitudinal axis y (see Figure 9).31275N1PCT 25.09.2025 mue / ni / fr

[0076] In a design with pivotable cutting jaws 4 and 5, the cutting plane E can enclose an acute angle y of, for example, 3 to 5 degrees with the displacement plane B, corresponding to the pitch angle [3 of the thread structure 32 (see Figure 4).

[0077] The cutting surface 35 or 36 can be formed at a transition into the receptacle 28, 29 with a cutting edge 37 which, during the cutting process, acts on the workpiece, for example the threaded bolt 7. Such a cutting edge 37 can essentially coincide with a thread crest 33 of the thread structure 32 of this receptacle 28, 29, so that a cutting plane E can be created which runs at an acute angle to the longitudinal axis y and is aligned along a thread crest 33 such that, after carrying out a cutting process for cutting a threaded bolt 7, a favorable run-out of the bolt thread 38 can be achieved in the resulting cutting surface 39 of the threaded bolt. The thread run-out can also enable, for example, a screw nut to be screwed directly onto the bolt thread 38 without further remachining of the bolt-side cutting edge.

[0078] The thickness f of the cutting edge 37, which is essentially formed by an incoming thread crest 33, viewed in the direction of the longitudinal axis y can be smaller than the thickness e of a thread crest 33 flanked on both sides by thread valleys 34, viewed in the same direction. Thus, the thickness f of the cutting edge 37 can, for example, correspond to 0.1 to 0.9 times, furthermore, for example, to 0.3 to 0.6 times the thickness e of a thread crest 33, wherein the thickness f of the cutting edge 37 can be selected to be constant along its extent or, alternatively, can increase continuously or, furthermore, alternatively, can decrease continuously (see Figure 9).

[0079] The first and / or the second cutting insert 26, 27, preferably both cutting inserts 26 and 27 equally, can have a trapezoidal contour in a plan view of the31275N1PCT 25.09.2025 mue / ni / frreceptacle 28, 29 as shown in Figure 9. The longitudinal axis y can run parallel to the trapezoid base 40. The peripheral edge 41 opposite the trapezoid base 40 with respect to the longitudinal axis y preferably runs parallel to the trapezoid base 40. A trapezoid leg 43 forms the first or second cutting surface 35, 36 with the cutting edge 37.

[0080] The trapezoidal angle between the trapezoidal base 40 and a subsequent trapezoidal leg 42, 43 can be selected to match the pitch angle [3 of the thread structure 32.

[0081] The cutting inserts 26 and 27 can be designed essentially identically. The cutting inserts 26, 27 can also be designed such that they can be inserted into the receiving pocket 24, 25 of the cutting jaw 4, 5 in a position rotated by 180 degrees about a position perpendicular to the longitudinal axis y.

[0082] In addition, the cutting inserts 26, 27 can be provided with markings assigned to their respective cutting surfaces 35 and 36 in order to make it clear to the user whether the cutting inserts 26, 27 are being used with the first cutting surface 35 or the second cutting surface 36 assigned to the cutting plane E.

[0083] As can be seen from Fig. 15, the cutting insert 26, 27 can also be designed rectangularly in a plan view, with first and second cutting surfaces 35, 36 or cutting edges 37 running essentially parallel to one another. In the plan view, this results in an oblique alignment of the receptacle 28, 29 with the thread structure 32, so that its longitudinal axis y runs at an acute angle a to, for example, the first cutting surface 35.

[0084] The first cutting insert 26 in the first cutting jaw 4 and the second cutting insert 27 in the second cutting jaw 5 are held interchangeably, for which31275N1PCT 25.09.2025 mue / ni / frpurpose the cutting jaws 4 and 5 can have the aforementioned first and second receiving pockets 24 and 25.

[0085] A replacement of one cutting insert 26 or 27 or of both cutting inserts 26 and 27, for example with cutting inserts for cutting threaded bolts with a different diameter and / or a thread with a different thread pitch, can be carried out without the use of a separate tool.

[0086] Each of these can be a receiving pocket 24, 25 that allows insertion or removal of the cutting insert 26, 27 in a linear direction. The receiving pocket 24, 25 can also be designed to accommodate different inserts, in particular different cutting inserts 24, 25.

[0087] A first pocket region 44 of each receiving pocket 24, 25 can, in alignment with the longitudinal axis y, completely penetrate the first and / or the second cutting jaw 4, 5. This first pocket region 44 can be open at both ends when viewed in the longitudinal direction y, correspondingly terminating in the respective jaw surface 49, 50 oriented substantially perpendicular to the longitudinal axis y or in an offset surface 45 of the cutting jaw 4, 5 extending substantially parallel thereto. A cutting insert 26, 27 received in the receiving pocket 24, 25 can thus be associated with and substantially visible in the region of the jaw surface 49 and at least partially exposed (see, for example, Figure 1 or also Figures 11 and 12).

[0088] Furthermore, a second pocket region 46 can be provided in the receiving pocket 24, 25 of the first and / or second cutting jaws 4, 5, which second pocket region 46, viewed in the direction of the longitudinal axis y, only partially penetrates the cutting jaws 4, 5. According to one possible embodiment, the second pocket region 46 can merge into the first pocket region 44 and31275N1PCT 25.09.2025 mue / ni / frthereby form an extension of the first pocket region 44 in a direction transverse to the longitudinal axis y.

[0089] The second pocket region 46 can be designed to be closed on both sides 47, 48, viewed in the direction of the longitudinal axis y, at least over a portion of a height h given in an insertion direction r of the first and / or second cutting insert 26, 27. In the illustrated embodiments, at least one of the sides, here side 47, is essentially completely closed over the height h.

[0090] The above-described design can result in a groove-like second pocket area 46. This can serve to guide the associated cutting insert 26, 27 during an insertion process into the cutting jaw 4, 5 and / or to secure the cutting insert 26, 27 in the inserted use position.

[0091] In a further embodiment, the first pocket region 44 of one end opens directly and openly into the jaw surface 49. The offset surface 45, into which the first pocket region 44 of the other end opens, runs, viewed in the direction of the longitudinal axis y, at a distance from the other jaw surface 50, approximately centrally between the jaw surfaces 49 and 50.

[0092] Viewed in the direction of the longitudinal axis y, next to the first pocket area 44, the cutting jaw 4, 5 forms a stepped receiving space 51 for the first pocket area 44 with the cutting insert 26, 27 of the other cutting jaw 5, 4 arranged therein in the cutting position.

[0093] Preferably, the cutting inserts 26 and 27 can each have an engagement projection 52 adapted to the groove-like second pocket region 46. This engagement projection 52 can be adapted, with regard to its cross-sectional configuration viewed transversely to the insertion direction r, to the cross-sectional31275N1PCT 25.09.2025 mue / ni / frconfiguration of the second pocket region 46 viewed in the same direction, for example in the form of a rib on the outside of the wall.

[0094] The engagement projection 52 of the cutting insert 26, 27 can serve to guide the cutting insert 26, 27 during an insertion process and to precisely position the cutting insert 26, 27 in the insertion position.

[0095] Each cutting insert 26, 27 can have two oppositely formed engagement projections 52, which can furthermore be of substantially identical design.

[0096] For fixing, in particular locking, the cutting insert 26, 27 in the position inserted in the cutting jaw 4, 5, corresponding to the position of use, a blocking projection 53 is preferably provided.

[0097] The blocking projection 53 can be captively mounted on the cutting jaw 4, 5 and movable in the direction of the longitudinal axis y between a blocking position and a release position. Furthermore, the blocking projection 53 can be substantially associated with the second pocket region 44.

[0098] In the illustrated embodiments, the blocking projection 53 is designed like a circular plate. A guide pin 54 is formed on the blocking projection 53, which has a smaller diameter than the blocking projection 53 and extends through a guide recess 55 of the cutting jaw 4, 5.

[0099] The free end of the guide pin 54 can protrude freely beyond the jaw surface 49 of the cutting jaw 4, 5 for pressure actuation and can furthermore carry a sleeve-like actuating section 56 at this free end.31275N1PCT 25.09.2025 mue / ni / fr

[0100] The blocking projection 53 is loaded into a basic position, which also essentially corresponds to the locking position, by a spring 57, which is supported at one end on a shoulder 58 in the region of the guide recess 55 and at the other end on the actuating section 56.

[0101] Preferably, the blocking projection 53 is designed and arranged to cooperate with the engagement projection 52 of the cutting insert 26, 27. By means of the blocking projection 53 in cooperation with the engagement projection 52, a fixing, for example a locking fixing, of the cutting insert 26, 27 in the receiving pocket 24, 25 can be achieved, wherein such a locking fixing is achieved automatically and preferably without further action by the user solely in the course of an insertion process of the cutting insert 26, 27 into the receiving pocket 24, 25.

[0102] In a further embodiment, during the insertion of the cutting insert 26, 27 into the receiving pocket 24, 25, the blocking projection 53 can be overrun by overcoming the restoring force of the spring 58.

[0103] For locking engagement with the blocking projection 53, the first and / or second cutting insert 26, 27 may have a recess 59 for receiving the blocking projection 53 or a portion of the blocking projection 53. The recess 59 may be a depression formed in the direction of the longitudinal axis y.

[0104] Furthermore, the recess 59 can be formed on the engagement projection 52 of the cutting insert 26, 27 that can be inserted into the second pocket region 46 of the receiving pocket 24, 25, wherein furthermore, according to a possible embodiment, both engagement projections 52 of a cutting insert 26, 27 can be provided with such a recess 59.31275N1PCT 25.09.2025 mue / ni / fr

[0105] The blocking projection 53 can also be designed, at least over a partial area interacting with the recess 59, to be adapted to the depth viewed in the direction of the longitudinal axis y and / or the outline of the recess 59 viewed transversely to the depth direction. Thus, the recess 59, viewed transversely to the depth direction, can, for example, have a circular segment-shaped outline, into which a section of the overall preferably circular disk-shaped blocking projection 53 can engage in a substantially positive-locking manner (see Figures 2 and 4).

[0106] Due to the positive engagement achieved in the inserted position between the blocking projection 53 and the recess 59 of the cutting insert 26, 27, the cutting insert 26, 27 is locked in the receiving pocket 24, 25. In the blocked position, the cutting insert 26, 27 cannot be removed from the receiving pocket 24, 25. Furthermore, due to this locking, the cutting inserts 26 and 27 are securely held in their receptacles even during a cutting operation.

[0107] To release the blocking position, user intervention is necessary, in particular a deliberate displacement of the blocking projection 53 against the restoring force of the spring 57 from the blocking position to the release position, for example by pressing the actuating section 56.

[0108] The receiving pocket 24, 25 has a pocket base 60. The cutting insert 26, 27 rests on this base in the inserted position. The base surface of the pocket base 60 can be penetrated by a pin 61 anchored in the base region, which, in the inserted position (for example, according to Figure 2), engages in a receiving slot 62 that preferably completely penetrates the cutting insert 26, 27 in the direction of the longitudinal axis y.31275N1PCT 25.09.2025 mue / ni / fr

[0109] The pin 61 can be seated in a bore 64. Two such bores 64 can be provided in the area of the pocket bottom 60 for optionally receiving the pin 61. This offers the possibility of inserting the cutting insert 26, 27 in an orientation rotated by 180 degrees - relative to a geometric axis running transversely to the longitudinal axis y.

[0110] Viewed in the direction of the height h of the cutting insert 26, 27, a jaw cover 63 which delimits the receiving pocket 24, 25 at the top extends in a preferably parallel alignment to the pocket bottom 60. As can be seen, for example, from the illustration in Figure 2, the cutting insert 26, 27 projects beyond this jaw cover 63 in the inserted position, and so on, in particular essentially with the section having the thread-like receptacle 28, 29.

[0111] In particular, in a configuration of the cutting tool 1 with cutting jaws 4, 5 pivotable about the pivot axis x, these have— with respect to the pivot axis x— a first and a second proximal end 65, 66, respectively, and a first and a second distal end 67, 68, respectively. The first and the second proximal end 65, 66 are designed as free ends of the pivot jaws 4, 5 and serve to be acted upon by the drive device 2. For this purpose, the proximal ends 65, 66 can have the action surfaces 13.

[0112] In a direction perpendicular to the cutting plane E, the first distal end 67 of the first cutting jaw 4 can extend, at least with a partial section of the first distal end 67, on a different side of the cutting plane E or the displacement plane B than the first cutting surface 35. The second distal end 68 of the second cutting jaw 5, in turn, also here at least with a partial section of the second distal end 68, on a different side of the cutting plane E or the displacement plane B than the second cutting surface 36 (see Figure 14).31275N1PCT 25.09.2025 mue / ni / fr

[0113] This can result in an overlap of each cutting jaw 4, 5, starting from the respective associated cutting surface 35, 36 beyond the cutting plane E. This overlap can further preferably be maintained over the entire pivoting path of the cutting jaws.

[0114] As can be seen from the illustrations, the width d of each swivel jaw 4, 5 corresponds to a multiple, for example approximately twice, of the width of a cutting insert 26, 27 viewed in the same direction. This also results in the dimension of the overlap.

[0115] The cutting plane E and / or the displacement plane B is penetrated at least by the distal end 67, 68 of the cutting jaw 4, 5 or at least crossed by the distal end 67, 68.

[0116] In one possible embodiment, the distal end 67, 68 extends from the jaw surface 49 facing the receiving pocket 24, 25 over approximately half the width d of the cutting jaw 4, 5. The jaw partial surface 69 facing away from the jaw surface 49 extends essentially in a parallel alignment to the jaw surface 49, and furthermore approximately in extension of the offset surface 45 on the receiving pocket side.

[0117] Viewed in the direction of the longitudinal axis y, laterally of the jaw partial surface 69, a swivel space 70 is formed which is open towards the other jaw surface 50 and towards the front side 71 of the cutting jaw 4, 5 for the distal end 67 or 68 of the other, pivoting cutting jaw 4 or 5.

[0118] As a result of the above-described design of the distal ends 67, 68 of both cutting jaws 4 and 5, the first and second distal ends 67 and 68 can mutually prevent each other from moving beyond the cutting plane E in the direction31275N1PCT 25.09.2025 mue / ni / frof the second or first cutting surfaces 35 and 36 during the cutting pivoting in and when the cutting jaws 4, 5 are fully pivoted in. In the event of a shear load on the cutting jaws 4, 5 during the cutting process, partial support of the cutting jaws 4 and 5 via their distal ends 67 and 68, in particular via their jaw partial surfaces 69, can occur. The cutting surfaces 35 and 36 thus remain on the side of the cutting plane E assigned to them over the entire displacement range, even when subjected to such a shear load. This results in a precise cutting guide and, as a result, a good cutting result, essentially without tear-off areas, on the threaded bolt 7 to be cut.

[0119] Figures 27 to 32 show two further embodiments of a cutting tool 1 with a first cutting jaw 4 and a second cutting jaw 5. The cutting jaws 4 and 5 according to Figures 27 to 31 can be designed according to one of the previously described embodiments and assigned to a drive device 1. In the embodiment according to Figure 32, the cutting edges 37 are formed directly on the cutting jaws 4, 5.

[0120] A damping part 72 can be assigned to the cutting jaw 4 and / or 5. This can be, for example, a rubber-elastic, correspondingly elastically resilient part, furthermore, for example, made of EPDM.

[0121] The damping part 72 can be designed in the shape of a circular disk— relative to an unloaded state — and can be arranged, for example, with respect to the longitudinal axis y, at the end of the first cutting insert 26, associated with the cutting surface 35, 36 facing the cutting plane E. Also, with reference to the embodiment in Figure 32, the damping part 72 can be arranged directly on the cutting jaw 4, 5.31275N1PCT 25.09.2025 mue / ni / fr

[0122] The fastening can be achieved by means of a pin 74, for example in the form of a screw or a rivet.

[0123] In addition, the damping part 72 can be provided on the second cutting insert 27 or on the second cutting jaw 5 as an alternative or in combination with the arrangement on the first cutting insert 26 or on the first cutting jaw 4.

[0124] In the use state of the cutting insert 26, the damping part 72 extends on one side of the cutting plane E and the cutting surface 35, 36 on the other side of the cutting plane E.

[0125] Furthermore, when arranged on the first cutting insert 26, the damping part 72 can protrude into the free space of the associated first receiving pocket 24, wherein the pocket wall can provide partial circumferential support for the damping part 72.

[0126] The damping part 72 is displaced together with the cutting jaw 4 and / or 5, thus pivotally displaced in the cutting direction T according to the embodiment, and forms a damping part impact surface 73 directed towards the opposite cutting jaw.

[0127] In order to act on the cutting material, for example the threaded bolt 7, during the pivoting displacement, the damping part impact surface 73 is arranged in particular in front of the cutting edge 37 of the cutting insert 26 which is connected to the movement of the damping part 72 or, with reference to the embodiment in Figure 32, the cutting jaw 4, 5 which is connected to the movement of the damping part 72.31275N1PCT 25.09.2025 mue / ni / fr

[0128] Thus, during the cutting jaw displacement in the cutting direction T, the damping part's impact surface 73 initially contacts the facing surface of the cutting material S (see Figure 30). This initially stabilizes the material S to be cut in its relative orientation to the cutting jaw 4, 5.

[0129] During the further displacement in the cutting direction T, an elastic deformation of the damping part impact surface 73 adapted to the surface of the cutting material S can occur (see Figure 31), while the cutting edge 37 acts in a cutting manner on the cutting material S and ultimately cuts it through. By means of the damping part 72, a significant damping of a penetrating force that can occur at the moment of cutting the cutting material S can be achieved.

[0130] 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, even without the features of a referenced claim, characterize, with their features, independent inventive developments of the prior art, in particular for the purpose of filing divisional applications based on these claims. The invention specified in each claim may additionally comprise one or more of the features identified in the above description, in particular with reference numerals, and / or specified in the list of reference numerals. The invention also relates to embodiments in which individual features mentioned in the above description are not implemented, in particular insofar as they are clearly dispensable for the respective intended use or can be replaced by other technically equivalent means.31275N1PCT 25.09.2025 mue / ni / frList of reference symbols1 cutting tool 29 second receptacle2 drive unit 30 first cutting tool3 drive housing 31 second cutting tool4 first cutting jaw 32 thread structure5 second cutting jaw 33 thread crest6 cutting mouth 34 thread valley7 threaded bolts 35 first cutting surface8 switch 36 second cutting surface9 accumulator 37 cutting edge10 power transmission line 38 bolt threads11 mounting head 39 cutting surface12 motor part 40 trapezoid base13 impact surface 41 edge14 roller 42 trapezoid legs15 bolt 43 trapezoid legs16 connecting tab 44 first pocket region17 locking bolt 45 offset surface18 receiving neck 46 second pocket region19 piston 47 side20 bore 48 side21 spring 49 jaw surface22 support frame 50 jaw surface23 section 51 receiving space24 first receiving pocket 52 engagement projection25 second receiving pocket 53 blocking projection26 first cutting insert 54 guide pin27 second cutting insert 55 guide recess28 first receptacle 56 actuating section31275N1PCT 25.09.2025 mue / ni / frspring c cross-sectional plane shoulder d width e thickness recess f thickness pocket base h height pin r insertion direction x piot axis receiving slot y longitudinal axis jaw cover z displacement axis boreB displacement plane first proximal endE cutting plane second proximal end S cutting material first distal end T cutting direction second distal end a angle jaw partial surface P pitch angle swivel space y angle front side damping part damping part impact surface pin31275N1PCT 25.09.2025 mue / ni / fr

Claims

34 / 39Claims1. Cutting tool (1), preferably for cutting a cutting material (S), such as a threaded bolt (7), with a first and a second cutting jaw (4, 5), wherein the first and the second cutting jaw (4, 5) are pivotable relative to one another to carry out a cutting process, comprise a first and a second proximal end and a first and a second distal end (65, 66, 67, 68) and a first and a second cutting surface (35, 36), wherein the first and the second proximal end (65, 66) are designed to be acted upon by a drive unit (2) and the first and the second distal end (67, 68) form a free end of the first and the second cutting jaw (4, 5), wherein furthermore during a cutting process the first and the second cutting surface (35, 36) in a cutting plane (E) move along one another, characterized in that in a direction perpendicular to the cutting plane (E), the first distal end (67) of the first cutting jaw (4) extends on a different side of the cutting plane (E) than the first cutting surface (35) and the second distal end (68) of the second cutting jaw (5) extends on a different side of the cutting plane (E) than the second cutting surface (36).

2. Cutting tool according to claim 1, characterized in that the first and the second distal end (67, 68) in the retracted state of the cutting jaws (4, 5) mutually prevent each other from moving beyond the cutting plane (E) in the direction of the first or the second cutting surface (35, 36).

3. Cutting tool (1) for cutting a cutting material (S) such as a threaded bolt (7), in particular cutting tool (1) according to claim 1 or 2, comprising a first cutting jaw (4) with a first cutting tool (30), wherein the first cutting tool (30) has a first cutting surface (35) and a first receptacle (28) extending along a longitudinal axis (y) and having a thread structure (32) extending substantially transversely to the longitudinal axis (y) into the first cutting tool (30), and comprising a second cutting jaw (5) with a second cutting31275N1PCT 25.09.2025 mue / ni / fr35 / 39 tool (31), wherein the second cutting tool (31) has a second receptacle (29) extending substantially parallel to the longitudinal axis (y) and having a thread structure (32) extending substantially transversely to the longitudinal axis (y) into the second cutting tool (31), wherein the second cutting tool (31) has a second cutting surface (36), wherein the thread structure (32) having a pitch has thread crests (33) and thread valleys (34), wherein one of the thread crests (33) and / or one of the thread valleys (34) runs into the first or second cutting surface (35, 36), and wherein the first and second cutting surfaces (35, 36) face one another along a cutting plane (E) during a cutting process, characterized in that the cutting plane (E) runs at an acute angle (a) with respect to the longitudinal axis (y).

4. Cutting tool according to claim 3, characterized in that the acute angle (a) corresponds to the pitch.

5. Cutting tool according to claim 3 or 4, characterized in that the first and / or second cutting surfaces (35, 36) extend transversely and perpendicularly to the longitudinal axis (y).

6. Cutting tool according to claim 5, characterized in that the first and second cutting surfaces (35, 36) are formed with a cutting edge (37) at a transition into the receptacle (28, 29).

7. Cutting tool according to claim 6, characterized in that the cutting edge (37) of the first cutting surface (35) runs substantially coincident with a threaded crest (33).

8. Cutting tool according to claim 7, characterized in that a thickness (e) of a thread crest (33) viewed in the direction of the longitudinal axis (y) is31275N1PCT 25.09.2025 mue / ni / frsmaller than the thickness (f) of the cutting edge (37) of the first cutting surface (35) viewed in the direction of the longitudinal axis (y).

9. Cutting tool according to one of claims 6 to 8, characterized in that the cutting edge (37) of the second cutting surface (36) partially coincides with a thread crest (33) and partially with a thread valley (34).

10. Cutting tool according to one of claims 3 to 9, characterized in that the first cutting tool (30) is designed as a first cutting insert (26) and the second cutting tool (31) is designed as a second cutting insert (27).

11. Cutting tool according to claim 10, characterized in that the first and / or the second cutting insert (26, 27) has a trapezoidal contour in a plan view of the side formed with the receptacle (28, 29).

12. Cutting tool according to one of claims 10 or 11, characterized in that the first cutting insert (26) is held in the first cutting jaw (4) and / or the second cutting insert (27) is held in the second cutting jaw (5) in an exchangeable manner.

13. Cutting tool according to one of claims 10 to 12, characterized in that the first and / or the second cutting jaw (4, 5) has a receiving pocket (24, 25) for the first or the second cutting insert (26, 27).

14. Cutting tool according to claim 13, characterized in that in the direction of the longitudinal axis (y) a first pocket region (44) of the receiving pocket (24, 25) completely penetrates the first and / or the second cutting jaw (4, 5).31275N1PCT 25.09.2025 mue / ni / fr15. Cutting tool according to one of claims 13 or 14, characterized in that in the direction of the longitudinal axis (y) a second pocket region (46) of the receiving pocket (24, 25) only partially penetrates the first and / or the second cutting jaw (4, 5).

16. Cutting tool according to claim 15, characterized in that the second pocket region (46) is designed to be closed on both sides (47, 48) in the direction of the longitudinal axis (y) at least over a part of a height (h) given in an insertion direction (r) of the first and / or the second cutting insert (26, 27).

17. Cutting tool according to one of claims 15 or 16, characterized in that the first and / or the second cutting insert (26, 27) has an engagement projection (52) adapted to the second pocket region (46).

18. Cutting tool according to one of claims 13 to 17, characterized in that the first and / or the second cutting jaw (4, 5) associated with the receiving pocket (24, 25) has a blocking projection (53) movable with respect to the cutting insert (26, 27) between a blocking position and a release position.

19. Cutting tool according to claim 18, characterized in that the blocking projection (53) is assigned to the second pocket region (46).

20. Cutting tool according to one of claims 18 or 19, characterized in that the blocking projection (53) is movable against spring force.

21. Cutting tool according to one of claims 18 to 20, characterized in that the first and / or the second cutting insert (26, 27) has a recess (59) for receiving the blocking projection (53).31275N1PCT 25.09.2025 mue / ni / fr38 / 3922. Cutting tool according to claim 21, characterized in that the recess (59) is a depression formed in the direction of the longitudinal axis (y).

23. Cutting tool according to one of claims 21 or 22, characterized in that the recess (59) is formed on the engagement projection (52).

24. Cutting tool according to one of claims 18 to 20, characterized in that the blocking projection (53) is movable in the direction of the longitudinal axis (y)-25. Cutting tool according to one of claims 3 to 24, characterized in that the first and second cutting jaws (4, 5) can be pivoted relative to one another to carry out a cutting operation.

26. Cutting tool according to one of claims 3 to 24, characterized in that the first and the second cutting jaw (4, 5) can be moved linearly relative to one another to carry out a cutting process.

27. Cutting tool (1) for cutting a cutting material (S) such as a threaded bolt (7), with a first and a second cutting jaw (4, 5), characterized in that the first and / or second cutting jaw (4, 5) has a damping part (72) which is arranged on the first and / or second cutting jaw (4) in a cutting direction (T) in a manner that moves along with the cutting process and has a damping part impact surface (73) in the course of the cutting process for acting on the cutting material (S) upstream of a cutting edge (37) of the first and / or second cutting jaw (4, 5).31275N1PCT 25.09.2025 mue / ni / fr

Citation Information

Patent Citations

  • Hydraulic press tool

    EP1084798B1

  • Cutter for bolts or rods, particularly screwed rods

    EP1459825A1

  • Hydraulically actuatable crimping device, method for carrying out a crimping operation, method for producing an electroconductive compression joint, electroconductively crimped compression sleeve, method for clamping a workpiece and hydraulic device

    US10468847B2

  • Cutting device for the severance of an electrical power cable, or of a strand section

    US11749977B2

  • Cutting Device for Workpieces Such as Rods, Bolts and the Like, Especially for Threaded Rods

    US20040181947A1