SCISSORS WHICH CAN BE TRANSFERRED BETWEEN A CUTTING CONFIGURATION AND A SHARPENING CONFIGURATION

Abstract

A cutting tool can have two blades which each have a cutting edge and which can be moved relative to one another in a cutting configuration in order to cut a material is disclosed. The cutting tool can be reversibly transferred from the cutting configuration to a sharpening configuration in which the blades are separated from one another for sharpening and/or polishing at least one of the cutting edges by a sharpening or polishing device, and each of the blades can be individually placed onto a level surface so that the blade is oriented at a constant working angle in relation to the surface, or in which the blades are locked relative to one another.

Claims

1-15. (canceled)

16. A cutting tool, comprising: two blades, each having a cutting edge and being movable relative to one another in a cutting configuration to cut a material, wherein the cutting tool can be reversibly transferred from the cutting configuration to a sharpening configuration in which: the blades are separated from one another for sharpening and/or polishing the cutting edges by a sharpening or polishing device, and each of the blades can be individually placed onto a level surface so that the blade is oriented at a constant working angle in relation to the level surface, or the blades are locked relative to one another.

17. The cutting tool according to claim 16, wherein at least one of the blades comprises a support section which defines a support plane upon which the blade can be stably deposited in the sharpening configuration on the level surface such that the blade is oriented at a working angle to the support plane in the range of 100 to 80?.

18. The cutting tool according to claim 16, wherein each of the blades comprises a support section which defines a support plane upon which the blade can be stably deposited in the sharpening configuration on the level surface, wherein the support plane lies outside a blade plane or protrudes above the blade plane to support the blade in the sharpening configuration, and wherein a maximum protrusion of the support section over the blade plane in the sharpening configuration is in the range of 20% to 90% of the maximum width of the blade.

19. The cutting tool according to claim 16, wherein at least one of the blades comprises at least three support sections which define a support plane upon which the blade can be stably deposited in the sharpening configuration on the level surface, and wherein the three support sections do not lie on one line.

20. The cutting tool according to claim 16, wherein at least one of the blades comprises a support section which defines a support plane upon which the blade can be stably deposited in the sharpening configuration on the level surface such that the cutting edge of the blade extends in a plane that is oriented at an angle of maximally 100 to the support plane.

21. The cutting tool according to claim 16, wherein at least one of the blades comprises a support section which defines a support plane upon which the blade can be stably deposited in the sharpening configuration on the level surface such that the cutting edge of the blade has a distance in the range of 5 to 50 mm from the support plane.

22. The cutting tool according to claim 16, wherein at least one of the blades comprises a support section which defines a support plane upon which the blade can be stably deposited in the sharpening configuration on the level surface such that when projected onto the support plane, the cutting edge of the blade, starting from an intersection with the other cutting edge, lies completely outside the other blade.

23. The cutting tool according to claim 16, wherein at least one of the blades comprises a support section which defines a support plane upon which the blade can be stably deposited in the sharpening configuration on the level surface, and wherein a blade body of the blade rests on a handle of the other blade when in the sharpening configuration.

24. The cutting tool according to claim 16, wherein at least one of the blades comprises a support section which defines a support plane upon which the blade can be stably deposited in the sharpening configuration on the level surface such that when projected onto the support plane, the support section lies below the blade and does not protrude above the blade or the cutting edge.

25. The cutting tool according to claim 16, wherein each of the blades comprises the cutting edge at a first end and a handle at a second end, and wherein the handle or a back of the blade facing away from the cutting edge comprises a support section upon which the blade can be stably deposited in the sharpening configuration on the level surface.

26. The cutting tool according to claim 25, wherein the cutting tool is scissors and the blades in the cutting configuration are arranged crosswise on an axis between the handle and the cutting edge of each blade and are rotatably mounted relative to one another such that the handles and the cutting edges of each blade are opposite one another, wherein the cutting tool comprises at least one support section upon which the blade can be stably deposited in the sharpening configuration on the level surface, the support section protruding along the axis and formed as part of the axis or detachably coupled to the cutting tool.

27. The cutting tool according to claim 26, wherein the axis for transferring the cutting tool between the cutting configuration and the sharpening configuration is detachable from at least one of the blades, so that the blades are separable from one another or lockable in a different configuration relative to one another.

28. The cutting tool according to claim 27, wherein the axis has a detachably couplable screw bolt and a matching cap nut, or the axis is attached to one of the blades and forms a male part of a bayonet lock which is detachably coupled to a female part of the bayonet lock on the other of the blades.

29. The cutting tool according to claim 25, wherein each of the blades includes a blade body comprising the cutting edge, wherein the blade body of one blade at least partially overlaps or contacts the handle of the other blade in the sharpening configuration, and wherein each of the handles has a handle opening, and the blade body of one blade at least partially covers the handle opening of the other blade in the sharpening configuration.

30. The cutting tool according to claim 16, wherein the blades in the cutting configuration are reversibly transferable between an open position in which the material can be arranged between the cutting edges and a closed position in which the cutting edges lie directly on top of one another, and wherein the cutting tool in the open position can be transferred to the sharpening configuration by locking the blades.

31. The cutting tool according to claim 16, wherein the cutting edges in the sharpening configuration define an opening angle in the range of 1350 to 180?.

32. The cutting tool according to claim 16, wherein the blades are magnetically or mechanically locked in the sharpening configuration.

33. The cutting tool according to claim 16, wherein the blades can be detached from each other and coupled to each other in a different arrangement for transferring the cutting tool from the cutting configuration to the sharpening configuration,

34. The cutting tool according to claim 33, wherein blade bodies of the blades in the sharpening configuration are oriented in different, non-parallel planes, transversely or perpendicularly to one another.

35. A set, comprising: a cutting tool according to claim 16; and a sharpening jig with which each of the blades of the cutting tool can be arranged on the level surface in an assembled or disassembled state of the cutting tool, such that the blade is oriented at a working angle in the range of 10 to 800 to the surface (U), wherein the sharpening jig is fixedly connected to the cutting tool at least in the cutting configuration and/or is adjustable relative to at least one of the blades for transferring the cutting tool into the sharpening configuration.

36. A method for sharpening and/or polishing a cutting tool including two blades each having a cutting edge, where the blades can be moved relative to one another in a cutting configuration of the cutting tool for cutting a material, the method comprising: transferring the cutting tool from the cutting configuration to a sharpening configuration in which: the blades are separated from each other and can each be individually placed onto a level surface so that the blade is oriented at a constant working angle in relation to the surface, or the blades are locked relative to one another; sharpening and/or polishing at least one of the cutting edges in the sharpening configuration with a sharpening or polishing device; and transferring the cutting tool from the sharpening configuration to the cutting configuration.

37. The method according to claim 36, wherein the blade with the cutting edge to be sharpened and/or polished is supported on the other blade.

38. The method according to claim 36, wherein the blade with the cutting edge to be sharpened and/or polished is supported on the handle of the other blade.

39. The method according to claim 36, wherein the blade with the cutting edge to be sharpened and/or polished is supported on an end of the other blade facing away from the cutting edge.

40. The method according to claim 36, wherein the blade with the cutting edge to be sharpened and/or polished is held lying stably on the level surface so that the blade is oriented with its cutting edge at a working angle in the range from 100 to 800 to the level surface.

41. The method according to claim 36, wherein the cutting edge to be sharpened and/or polished is held in abutment against a sharpening or polishing surface of the sharpening or polishing device, and the sharpening or polishing device is thereby moved along the cutting edge alternately in a first direction and in a second, opposite, direction, or repeatedly in one of the first direction or the second direction.

42. The method according to claim 36, wherein sharpening and/or polishing at least one of the cutting edges comprises sharpening and/or polishing both of the cutting edges, sequentially, and wherein the positions of the blades are exchanged between the sharpening and/or polishing of one cutting edge and the sharpening and/or polishing of the other cutting edge, such that in each case the blade not being sharpened and/or polished supports the blade that is being sharpened and/or polished in the sharpening configuration.

Description

BRIEF DESCRIPTION OF THE FIGURES

[0044] FIG. 1 shows an exemplary cutting tool in the form of pivoted scissors with two blades mounted crosswise on a common axis of rotation in a cutting configuration in the partially open position, wherein the direction of view is along or parallel to the axis of rotation.

[0045] FIG. 2 shows a further exemplary cutting tool in the form of pivoted scissors with two blades mounted crosswise on a common axis of rotation, wherein the blades are locked relative to one another in a sharpening configuration and wherein the blade body of the upper blade rests on the handle of the lower blade, while the cutting edge of the upper blade is machined with a roller sharpener shown schematically.

[0046] FIG. 3 shows a schematic side view of the arrangement shown in FIG. 2, in which the cutting edge of the upper blade is machined with a roller sharpener, wherein the blade body of the upper blade is oriented at a working angle of 15 or 200 in relation to a level surface, wherein the handle of the lower blade rests stably on the surface with support sections defining a support plane and thereby supports the blade body of the upper blade, wherein the cutting edge of the upper blade protrudes above the handle of the lower blade when projected onto the support plane and is thus optimally accessible for the roller sharpener.

[0047] FIG. 4 shows a photographic image of a cutting tool in the sharpening configuration, wherein the blades are locked in a maximum open position relative to one another, wherein a user holds the cutting tool in his hand and indicates the stop for the maximum opening angle of the blades with a pin tip.

[0048] FIG. 5 shows a photographic illustration of the cutting tool according to FIG. 4 in the sharpening configuration during sharpening with a roller sharpener.

[0049] FIG. 6 shows a photographic illustration of a cutting tool according to an alternative embodiment in the sharpening configuration, wherein the blades are locked in a different arrangement relative to one another in a decoupled state, wherein the blade to be machined is supported with its blade body on the handle back of the blade not to be machined and is oriented approximately in a perpendicular plane to the blade body of this blade, wherein the cutting edge to be machined faces the surface and the blade body is oriented at the intended working angle of 40 to 50? in relation to the surface.

[0050] FIG. 7 shows an enlarged detailed view of the arrangement in FIG. 6.

[0051] FIG. 8 shows a computer-generated, schematic top view of a cutting tool according to a further embodiment of the disclosure, with the direction of view perpendicular to the planes of the blade bodies or the plane of the scissors movement, wherein the cutting tool is configured as pivoted scissors and the blades in the cutting configuration are arranged crosswise on an axis arranged in each case between the handle and the cutting edge and are mounted so as to be rotatable relative to one another in such a way that the handles and the cutting edges of the two blades are opposite one another in each case, wherein the cutting tool has a support section protruding along the axis, which in the sharpening configuration together with further support sections on the handle and on the back of the blade defines a support plane for placing the blade to be machined on a level surface.

[0052] FIG. 9 shows a computer-generated, schematic side view of the cutting tool according to FIG. 8 with the viewing direction parallel to the planes of the blade bodies or parallel to the plane of the scissors movement.

[0053] FIG. 10 shows a computer-generated, perspective and schematic view of the cutting tool according to FIGS. 8 and 9.

[0054] FIG. 11 shows in a computer-generated, perspective and schematic view a sharpening arrangement with a blade of the cutting tool according to FIGS. 8 to 10 in the sharpening configuration, which is positioned on a level surface, wherein the blade is detached from the other blade of the cutting tool and is supported on the level surface by a support section protruding along the pivot axis of the cutting tool and rests stably on the surface for sharpening and/or polishing this blade.

[0055] FIG. 12 shows the arrangement according to FIG. 11 from another viewing angle in combination with a sharpening or polishing device in the form of a roller sharpener, wherein the cutting edge of the blade to be machined is held in abutment against a sharpening or polishing surface of the sharpening or polishing device.

[0056] FIG. 13 shows the arrangement according to FIG. 12 again from a different viewing angle, wherein the sharpening or polishing device in the form of the roller sharpener is shown semi-transparently.

[0057] FIG. 14 shows a photographic illustration of one of the blades of the sharpening device schematically shown in FIGS. 8 to 10 in the sharpening configuration in combination with a sharpening or polishing device in the form of a roller sharpener, wherein the blade is detached from the other blade of the cutting tool and is supported by a support section protruding along the pivot axis of the cutting tool on the level surface and rests stably on the surface for sharpening and/or polishing this blade, wherein the cutting edge of the blade to be machined is held in abutment against a sharpening or polishing surface of the sharpening or polishing device by a user whose hand is partially visible in the photographic illustration.

[0058] FIG. 15 shows the blade shown in FIG. 14 without sharpening or polishing device from a different perspective.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0059] Preferred embodiments of the present disclosure are described in detail below with reference to the accompanying Figures.

First Embodiment (FIGS. 1 to 5): Sharpening Configuration in the Assembled State

[0060] FIG. 1 shows a cutting tool 1 according to the first embodiment of the disclosure, wherein the cutting tool 1 has the shape of scissors 1. The scissors 1 are configured as pivoted scissors 1 and have two blades 2, 3, each with a cutting edge 2a, 3a, which can be moved relative to one another in a cutting configuration. Each of the blades 2, 3 comprises a blade body 2b, 3b with the cutting edge 2a, 3a at one end thereof and a handle 2c, 3c at another end thereof. In the cutting configuration, the blades 2, 3 are arranged crosswise on an axis X respectively arranged between the handle 2c, 3c and the cutting edge 2a, 3a and rotatably supported to one another such that the handles 2c, 3c and cutting edges 2a, 3a of the blades 2, 3 respectively face each other in pairs, as shown in FIG. 1. For cutting a material, the blades 2, 3 are reversibly transferable in the cutting configuration between an open position, in which the material to be cut can be arranged between the cutting edges 2a, 3a, and a closed position, in which the cutting edges 2a, 3a lie directly on top of one another.

[0061] According to the disclosure, the cutting tool 1 can be reversibly transferred from the cutting configuration into a sharpening configuration in which the blades 2, 3 are locked relative to one another for sharpening and/or polishing one of the or both cutting edges 2a, 3a with a sharpening or polishing device 5, in particular with a roller sharpener 5. The locking can be accomplished, e.g., by magnetically or mechanically coupling the blades 2, 3 to each other in their maximum open position, e.g., by mechanical or magnetic coupling between the handle 2c, 3c of one blade and the blade body 2b, 3b of the other blade 2, 3.

[0062] The sharpening configuration corresponds here to a maximum open position of the blades 2, 3 locked to one another, wherein the cutting edges 2a, 3a enclose an opening angle R of approx. 1650 and are optimally accessible for processing with the sharpening or polishing device 5.

[0063] The scissors 1 comprise a plurality of support sections 4 on each handle 2c, 3c, which define a support plane AE with which the cutting tool 1 can be placed stably on a level surface U in the sharpening configuration in a locked state. In the machining position, the blade 2, 3 is oriented with the cutting edge 2a, 3a to be machined at a working angle ? in the range of, e.g., 15 or 200 in relation to the support plane AE. When projected onto the support plane AE (viewing direction P in FIG. 3), the cutting edge 2a, 3a to be machined, starting from a point of intersection with the other cutting edge 2a, 3a, lies completely outside the other blade 2, 3. Ideally, the cutting edge 2a, 3a to be machined extends at a distance of about 20 mm parallel to the support plane AE or base U. Thus, the cutting edge 2a, 3a to be machined is optimally accessible for machining with the sharpening or polishing device 5.

[0064] In the sharpening configuration, the blade body 2b, 3b of one blade 2, 3 overlaps the handle 2c, 3c and a handle opening of the other blade 2, 3 at least in sections when viewed along the axis X (viewing direction B in FIG. 3).

[0065] One important idea of the disclosure is to lock the two blades 2, 3 of the cutting tool 1 in the sharpening configuration such that in each case the blade 2, 3 not to be machined serves as a stable bearing during sharpening and/or polishing of the blade 2, 3 to be machined. Although the two blades 2, 3 can be moved relative to one another in the cutting configuration, however, the sharpening angle for machining the cutting edges 2a, 3a should remain constant. For this reason, the cutting tool 1 according to the disclosure can be transferred to the sharpening configuration in which a movement of the two blades 2, 3 is blocked by the lock in order to facilitate the sharpening and/or polishing of one of the or both cutting edges 2a, 3a.

[0066] In the sharpening configuration shown schematically in FIG. 3, the blade 2, 3 is oriented with the cutting edge 2a, 3a to be machined at a working angle ? of 15 or 200 to the surface U. The working angle ? corresponds to the angle which the blade body 2b of the upper blade 2 to be machined encloses with respect to the surface U. The handle 3c of the lower blade 3 not to be machined, serves as a support and ramp for the upper blade 2 to be machined 2. In this context, the cutting tool 1 rests on the surface U with the support sections 4 or the support plane AE formed thereby.

[0067] To machine the cutting edge (3a) of the other blade 3, the cutting tool 1 can be turned over so that the previously lower blade 3 lies on top and the previously upper blade 2 rests on the surface U with its own support sections 4 defining its own support plane AE.

[0068] In a method according to the disclosure for sharpening and/or polishing the cutting edges 2a, 3a of this cutting tool 1, the cutting tool 1 is first transferred from the cutting configuration to the sharpening configuration (step A). In this sharpening configuration, the blades 2, 3 are locked relative to one another so that a relative movement of the blades 2, 3 is blocked. Subsequently, the cutting edges 2a, 3a are sharpened and/or polished in the sharpening configuration with a sharpening or polishing device 5, in particular with a roller sharpener 5 (step B). For this purpose, the cutting tool 1 is stably placed with the support sections 4 on a level surface U, so that the blade 3 not to be machined, here e.g. its handle 3c, serves as a bearing and ramp for the blade 2 to be machined (cf. FIG. 3). The handle 3c of the blade 3 not to be machined is thereby located in sections between the blade body 2b of the blade 2 to be machined and the surface U.

[0069] A roller sharpener 5, as schematically shown in FIG. 3, comprises a cylindrical device body 5c and two sharpening or polishing surfaces 5a, 5b arranged on the end faces of the device body 5c. These sharpening or polishing surfaces 5a, 5b rotate in a (vertical) plane perpendicular thereto when the roller sharpener 5 rolls on the level, horizontal surface U. Such roller sharpeners 5 are known, for example, from DE 297 03 326 U1 or EP 3 278 928 B1.

[0070] In the sharpening configuration, the cutting edge 2a to be machined of the cutting tool 1 is held in abutment against the rotating sharpening or polishing surface 5a, 5b of the sharpening/polishing device 5. The sharpening/polishing device 5 is thereby repeatedly moved along this cutting edge 2a, e.g. alternately in a first direction leading towards a handle 2c of the blade 2 and a second direction leading away from the handle 2c of this blade 2. Alternatively, the sharpening/polishing device 5 may be repeatedly moved along this cutting edge 2a in one of these two directions.

[0071] If in step B both cutting edges 2a, 3a are sharpened or polished in the same sharpening configuration of the blades 2, 3, the cutting tool 1 can be turned over between the machining of one cutting edge 2a and the machining of the other cutting edge 3a, so that in each case the blade 2, 3 not to be machined rests on the surface U and supports the blade 2, 3 to be machined. After completion of sharpening or polishing, the cutting tool 1 is transferred from the sharpening configuration to the cutting configuration again by releasing the locking of the blades 2, 3 (step C), so that the blades 2, 3 can be moved relative to one another again.

Second Embodiment (FIGS. 6 and 7): Sharpening Configuration in the Disassembled State

[0072] In a second embodiment, which is described below with reference to FIGS. 6 and 7, the blades 2, 3 are detachable from one another for transferring the cutting tool 1 from the cutting configuration to the sharpening configuration and can be coupled to one another in a different arrangement.

[0073] High-quality scissors usually have a sharpening angle of more than 25?, ideally 45?. The handle 2c, 3c of the blades 2, 3 would have to become comparatively thick to create a 45? bevel in such a way that the sharpening/polishing tool 5 can still be well applied and sharpened.

[0074] In the alternative embodiment, the blades 2, 3 of the scissors 1 can therefore be disassembled at the pivot or axis of rotation X by means of a special screw. At the end of each handle 2c, 3c of the two blades 2, 3 or scissors jaws, a thread (e.g. insert nut) or a magnet is incorporated in the correct angular position so that the other blade 2, 3 or scissors jaw can be screwed tight or clipped on via the magnet in such a way that the correct sharpening angle is automatically produced on the cutting edge 2a, 3a.

[0075] The sharpening configuration of the cutting tool 1 is shown in FIGS. 6 and 7. In the sharpening configuration, the blade bodies 2b, 3b of the blades 2, 3 are arranged approximately in a T-shape and oriented in different, non-parallel planes. In this context, the blade 2 to be machined is arranged, e.g., transversely or perpendicularly to the blade 3 not to be machined at its handle end 3c and is supported with its blade body 2c against the handle end 3c of the blade 3 not to be machined. The handle end 3c of the blade 3 not to be machined is configuredas mentionedso as to support and magnetically or mechanically hold the blade body 2 to be machined in order to orient it at a working angle of 45? to the surface U, so that the cutting edge 2a to be machined faces the surface U.

Third Embodiment: Sharpening Configuration with Sharpening Jig (not Shown)

[0076] As an alternative to the embodiment shown in FIGS. 6 and 7, the cutting tool 1 can be positioned in an assembled stateor each blade 2, 3 individually in a disassembled stateby means of a sharpening jig (not shown) such that the blade 2, 3 to be machined is oriented at the intended working angle of approx. 40 to 50? with respect to the surface U. As a result, the intended sharpening angle to the rotating sharpening or polishing surface 5a/b of the roller sharpener 5, which is aligned perpendicular to the surface U, can be set in a targeted manner. The sharpening jig can be an integral part of the cutting tool 1, especially in the cutting configuration. For transferring to the sharpening configuration, the sharpening jig can, for example, be detached from at least one of the blades 2, 3 or adjusted relative to at least one of the blades 2, 3.

Fourth Embodiment (FIGS. 9 to 15): Support Section Along the Axis

[0077] The fourth embodiment of the disclosure is described in detail below with reference to FIGS. 8-15. For identical features, identical reference signs as in the preceding embodiments are used and a repeated description is omitted.

[0078] The cutting tool 1 according to the fourth embodiment is configured as pivoted scissors and is shown in FIGS. 8 to 13 in various computer-aided designs (CAD) and in FIGS. 14 and 15 in photographic illustrations, at least in sections.

[0079] In the cutting configuration, the blades 2, 3 of the pivoted scissors are arranged crosswise on an axis X arranged in each case between the handle 2c, 3c and the cutting edge 2a, 3a and are mounted rotatably relative to one another such that the handles 2c, 3c and the cutting edges 2a, 3a of both blades 2, 3 are opposite one another in each case.

[0080] In the present case, the axis X is formed, for example, as a screw axis with a screw bolt and cap nut, which are formed as parts 6, 7 protruding along the axis X over the blades 2, 3 and are detachable from one another for transferring the cutting tool 1 from the cutting configuration to the sharpening configuration. The screw bolt 6 includes a head and an externally threaded shank extending therefrom. The shank can be screwed into a complementary threaded receptacle of the cap nut 7 with internal thread. In the connected state or in the cutting configuration, the screw bolt 6 and cap nut 7 protrude in the axial direction on both sides above the blades 2, 3 (cf. FIGS. 8 and 9).

[0081] In an alternative embodiment (not shown), the blades 2, 3 are detachably coupled via a bayonet lock. The axis X thereby forms the male part of the bayonet lock and is firmly connected to one of the blades 2, 3. At the distal end, the axis X has an engagement profileor keywhich, in a certain rotational position, fits into or can be released from a receiving profileor lockon the other blade, which forms the female part of the bayonet lock. This bayonet lock can be covered by fitted caps which form the parts 6, 7 protruding along the axis X over the blades 2, 3.

[0082] The parts 6, 7 of the cutting tool 1 protruding along the axis X are shaped approximately identically or mirror-symmetrically, in particular tapered in a wedge shape towards the ends facing away from one another. These parts 6, 7 have the function of a sharpening jig to support each of the blades 2, 3 in the sharpening configuration at a constant working angle ? of, for example, 45? with respect to the level surface U. The shapes of the parts 6, 7 may be selected independently of one another. The wedge shape of the parts 6, 7 is defined by two side flanks which form flat support sections 4 and meet at a vertex 6a. Starting from this vertex 6a, the side flanks have an increasing distance from one another to form a V-shaped edge which includes a flattening 6b (FIG. 10).

[0083] In the sharpening configuration, the two blades 2, 3 are detached from each other.

[0084] The side flank of the part 6 facing away from the cutting edge 2a of the blade 2 forms a support section 4 which, together with other support sections 4, e.g. on the back of the handle 2c and possibly on the back of the blade body 2b, defines a support plane AE with which the blade 2 can be supported on the level surface U in order to be held at a constant working angle in relation to the level surface U. The vertex 6a of the part 6 points toward the handle 2c of the blade 2.

[0085] The part 6 is preferably rotatable with respect to the corresponding blade 2 so that it can orient itself until the side flank forming the support section 4 lies exactly in a support plane AE with the other support sections 4 of the blade 2 to be machined. In the desired rotational position, the part 6 can preferably be locked with respect to the blade 2 so that no unintentional rotation with respect to the blade 2 is possible. However, it is also possible for the part 6 to be locked to the blade 2 only in the desired orientation, so that the side flank forming the support section 4 lies exactly in a support plane AE with the other support sections 4 of the blade 2 to be machined.

[0086] For sharpening or polishing, the cutting edge 2a, 3a of the blade 2, 3 to be machined is held in step B in abutment against a sharpening or polishing surface 5a, 5b of a sharpening or polishing device 5 such as a roller sharpener. In this context, the sharpening or polishing device 5 is moved along this cutting edge 2a, 3a, preferably alternately in a first direction leading toward the handle 2c, 3c of this blade 2, 3 and in a second direction leading away from the handle 2c, 3c of this blade 2, 3, or repeatedly in one of these two directions (cf. FIGS. 12 and 13).

[0087] After the sharpening or polishing of one blade 2 has been completed, the part 6 can be decoupled from the one blade 2 and coupled to the other blade 3 in order to support this blade 3 stably on the level surface U according to the same principle as described previously with reference to FIGS. 8 to 13 and illustrated with reference to the photographic illustrations in FIGS. 14 and 15.

[0088] In other words, the part 6 forms a support section 4 protruding along the axis X to support each of the blades 2, 3 in the sharpening configuration in a disassembled state of the cutting tool 1 at a constant working angle ? on the surface U.

LIST OF REFERENCE SIGNS

[0089] 1 cutting tool [0090] 2, 3 blade [0091] 2a, 3a cutting edge [0092] 2b, 3b blade body [0093] 2c, 3c handle [0094] 4 support section [0095] 5 sharpening or polishing device (roller sharpener) [0096] 5a, 5b sharpening or polishing surface [0097] 5c device body [0098] 6 part protruding along the axis (screw bolt) [0099] 6a vertex [0100] 6b flattening [0101] 7 part protruding along the axis (cap nut) [0102] AE support plane [0103] B direction of view parallel to the axis [0104] P direction of view perpendicular to the support plane [0105] U surface [0106] X axis