Cutter

Abstract

The invention relates to a tool (10), comprising a first actuating element (11) and a second actuating element (12) of an actuating device (13), the second actuating part forms a hinge (a1) with the first actuating part (11) and can be deflected in a first direction (u1) around a part deflection axis (a1) relative to the first actuating part (11) from an unactuated position in order to move a blade device (15) which can move relative to the first actuating part (11) and the second actuating part (12). And is deflectable in a second direction (u2) in order to move the second actuating part (12) into the blade changing position; and an adjusting device (16), which comprises an adjusting component (20), by means of which a movement of the second actuating part (12) can be blocked with respect to at least one direction (u1, u2).

Description

Technical Field

[0001] The invention relates to a cutting tool. Background Art

[0002] Such a tool has an operating device with a first operating part, which forms a pivot joint with a second operating part. The second operating part can be pivoted relative to the first operating part in a clamp-like manner between an unoperated position and an operated position about a component pivot axis so that a blade device movable relative to the first and second operating parts together with a blade held thereon can be moved between a rest position and a cutting position. In the rest position, access to the blade, for example, in the area of ​​the tool is blocked so that the user cannot be injured. In the cutting position, for example, a cutting process is possible.

[0003] There are different technical solutions to move the blade support including the first operating member and the second operating member between the rest position and the cutting position. Suitable solutions among these solutions are used in the cutter according to the present invention. Importantly, the drive is carried out based on the relative movement of the first operating member and the second operating member.

[0004] EP 2 807 001 A1 discloses a tool comprising two operating parts. The tool has a safety device in order to lock the movement of the second operating part relative to the first operating part. The handle of the safety device can be moved into position in different directions from a locked position. Summary of the invention

[0005] The object of the present invention is to provide a tool comprising a first operating part and a second operating part pivotable relative to the first operating part, comprising an adjusting device for adjusting different operating states of the tool, which involves little component expenditure and has advantages with regard to production.

[0006] In the tool according to the invention, the first operating part and the second operating part of the operating device form a hinge, so that the second operating part can be pivoted in a pincer-like manner relative to the first operating part in the opposite pivot direction about the component pivot axis. The component pivot axis extends, for example, approximately at a right angle to the sagittal plane of the tool. The movement of the second operating part relative to the first operating part occurs in the sagittal plane. The longitudinal center axis of the tool is, for example, located in the sagittal plane of the tool.

[0007] When the second operating part moves in the first deflection direction relative to the first operating part between the unoperated position and the operated position, the blade device moves between the rest position and at least one cutting position. The movement of the second operating part from the unoperated position in the second deflection direction to the blade change position allows the use of the blade device, for example, for replacing the blade device or for replacing a blade supported in a blade holder. The blade device can mean a one-piece blade including a blade edge in the sense of the present invention, wherein no blade holder is provided. However, the term blade device also includes devices in which the blade is non-detachably or detachably fastened in the blade holder.

[0008] The tool has an adjustment device including at least one locking device, by means of which the operating state of the tool can be selected at least between an operating position, a locking position and a blade changing position. In the locking position, a movement of the second operating part from the non-operated position into the operated position and thereby a movement of the blade support from the rest position into the cutting position is not possible. Furthermore, a movement into the blade changing position is not possible.

[0009] In the operating position, the second operating element can be moved relative to the first operating element in a first direction between an unoperated position and an operated position and thereby the blade arrangement between a rest position and a cutting position. Movement into the blade changing position is not possible in the operating position.

[0010] In the blade changing position, the second operating part cannot be moved from the unoperated position to the operated position. However, the second operating part can be moved into the blade changing position. In the blade changing position, the blade device can be accessed.

[0011] In the tool according to the invention, the movement of the blade arrangement is blocked by blocking a relative movement of the first actuating element and the second actuating element from the non-actuated position into the actuated position.

[0012] The adjusting device has at least one locking device, with which the movement of the second operating part with respect to the first movement direction, the second movement direction or with respect to both movement directions can be locked. For example, in order to provide increased safety, there are two locking devices.

[0013] The locking device has, for example, at least two oppositely arranged locking surfaces and at least two mutually spaced mating surfaces, the locking surface being assigned to one of the operating parts, the mating surface being formed on an adjustment member, the adjustment member being assigned to the other of the operating parts. The mating surfaces are, for example, spaced from each other such that the locking surface can be arranged between the mating surfaces with respect to the movement of the adjustment member.

[0014] In a corresponding position of the adjusting component, for example the first or the second pair of blocking surfaces and the counter-surfaces interact with each other or for example both pairs interact with each other.

[0015] The locking surface or the mating surface is formed on the deflectable adjusting component. The surface areas of the locking surface and the mating surface can be positioned offset relative to each other, for example by means of the adjusting component, so that the movement of the second operating part in the first deflection direction, in the second deflection direction and in both deflection directions can be optionally blocked. The surface area of ​​the locking surface can be assigned to one structure or different structures. Similarly, the surface area of ​​the mating surface can be assigned to one structure or different structures.

[0016] With the adjusting device according to the invention, different operating states of the tool can be adjusted in a small space and with a small number of components.

[0017] The locking device of the adjusting device is designed, for example, in such a way that the adjustment of the adjusting member into the locking position is arranged between the adjustment into the blade changing position or the operating position with respect to the adjustment sequence of the adjusting member. When the second operating element is moved from the blade changing position into the unoperated position, the knife can then be automatically secured in the locking position of the locking device, thereby reducing the risk of injury. In other words, it is now impossible for the user to accidentally move the second operating element into the operated position during this movement and thereby place the blade device into the cutting position.

[0018] The adjusting member can be adjusted between the positions, ie the operating position, the locking position and the blade changing position, for example in a translational or rotational manner. The translational movement can be performed in a straight line or on an at least partially curved track.

[0019] For example, the adjusting device has two locking devices. The parts of the first and second locking devices can be synchronized with each other so that they move in the same way. For example, the adjusting component has parts of the first locking device and the second locking device. The adjusting component has a pair of locking surfaces and / or mating surfaces, for example, opposite to the sagittal plane of the tool, wherein each of the locking surfaces cooperates with the mating surface. These features achieve uniform load and higher safety because there is a redundant structure in the event of failure of one of the structures.

[0020] In the present application, the term "locking surface" can have the meaning of a continuous locking surface or a plurality of surface areas of a plurality of separate locking surfaces. Similarly, the term "matching surface" can refer to a plurality of surface areas of a matching surface or a plurality of separate matching surfaces.

[0021] The blocking surface and / or the mating surface are, for example, at least partially cylindrical. That is, for example, one of the surfaces can be fully cylindrical and the other of the surfaces can be partially cylindrical. The term partially cylindrical means that the cylindrical structure is formed by a partial circle in cross section. At least one of the two surfaces can, for example, surround the other surface in such a way that a movement of the second operating part along at least one deflection direction is prevented.

[0022] The locking surface and / or the matching surface are, for example, arranged coaxially with the component deflection axis in the unoperated position. When the locking surface and the locking matching surface are arranged partially cylindrically, the two surfaces or surface areas can be moved into engagement and out of engagement by the rotation of the adjusting component in this way.

[0023] The locking surface and the mating surface are formed, for example, on the rear end region of the first operating part and the second operating part. The rear end region is arranged opposite to the pivot joint between the first operating part and the second operating part. For this reason, the movement of the second operating part along one or both of the movement directions can be prevented with relatively little force due to the lever action on the rear end region. In addition, this region is not in the movement region of the blade device.

[0024] The locking surface and / or the mating surface are formed, for example, on a projection of the first operating part or the second operating part. If the tool part of the tool is formed in the unoperated position so that the first operating part is spaced apart from the second operating part, it is possible to form one or both of the surface types of the locking surface and the mating surface on the projection of the first operating part or the projection of the second operating part. The locking surface and the mating surface can then be moved into or out of engagement in the rear region of the tool despite the distance between the operating regions of the first operating part and the second operating part.

[0025] In the locked position, the locking surface cooperates with at least one mating surface, for example, so that the second operating component is locked to the deflection movement in the cutting position and the blade changing position. The locking surface and the mating surface are used to lock the two opposite movement directions of the second operating component in this position of the adjustment member. The movement of the second operating component to the operating position is locked by the first locking surface and the first mating surface, and the movement to the blade changing position is locked by the second locking surface and the second mating surface.

[0026] In the operating position of the adjusting member, the second blocking surface and the second counter surface interact in a blocking manner such that a movement of the second actuating part from the unactuated position into the actuated position is possible, while a movement from the unactuated position into the blade changing position is blocked.

[0027] In the blade changing position of the adjusting member, for example, the movement in the cutting position is locked and the movement of the second operating member into the blade changing position is released. The first locking surface and the first mating surface are locked into the movement in the manipulated position. The second locking surface and the second mating surface can move past each other. The second operating member can be moved into the blade changing position in the blade changing position of the adjusting member to ensure the use of the blade device. In addition, it can be suitable to lock the movement of the second operating member into the manipulated position so that during the blade change, the blade device will not accidentally deviate into the cutting position and expose the user to the risk of injury.

[0028] The adjusting member has, for example, a resilient locking element which moves into a positive engagement with the locking engagement structure in at least one of the adjusted positions, i.e. the locking position, the operating position or the blade change position. This ensures that the adjusting member cannot be accidentally moved out of the adjusted position. The locking element is, for example, formed integrally with the adjusting member. Alternatively, however, the locking element can also be fastened to the adjusting member.

[0029] The adjusting member has, for example, a return element which loads the adjusting member into the locking position. By means of the automatic return of the adjusting member, for example from the blade changing position into the locking position, it can be ensured that the second actuating part automatically engages with the adjusting member in the locking position during the return to the unactuated position, wherein the locking surface and the mating surface engage.

[0030] According to one embodiment, the geometric component pivot axis extends approximately at a right angle to the sagittal plane of the tool.

[0031] The component pivot axis is arranged, for example, approximately parallel to the component pivot axis. In particular, the component pivot axis is designed, for example, transversely to the sagittal plane of the tool.

[0032] The adjustment member can have, for example, an adjustment attachment, which is located on a lateral region of the tool. On the adjustment attachment, a user can adjust the adjustment device.

[0033] The locking structure including at least one locking surface and the matching structure including at least one matching surface are formed, for example, with cooperating inclined surfaces, so that when the second operating part moves from the blade changing position to the non-operated position, the adjusting member is moved, so that the locking surface and the matching surface can move past each other. When the adjusting member is loaded into the locking position by the spring, it is ensured in this way that when the second operating part moves back into the non-operated position, the locking device can be moved into the locking position again. This is only possible when the second operating part is in the non-operated position. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In the following description of the drawings, exemplary embodiments of the invention are also described by way of example with reference to the drawings. For the sake of clarity - also insofar as different exemplary embodiments are concerned - identical or similar components or elements or regions are denoted by the same reference numerals, sometimes with additional lower case letters.

[0035] Features described only with respect to one exemplary embodiment may also be provided within the scope of the invention in any other exemplary embodiment of the invention. Such modified exemplary embodiments—even if they are not shown in the drawings—are also included by the invention.

[0036] All disclosed features are essential to the invention per se. The disclosure content of the cited documents and described devices of the prior art is hereby also fully included in the disclosure of the present application, also for the purpose of including one or more features of these documents in one or more claims of the present application.

[0037] in:

[0038] Figure 1 A perspective view of a first exemplary embodiment of a tool according to the invention is shown in an unactuated position;

[0039] Figure 2 Show according to Figure 1 perspective view in manipulated position;

[0040] Figure 3 showing a perspective view of the tool, wherein the adjustment member is shown in an exploded view;

[0041] Figure 4 Shown in accordance with Figure 1 A side view of a tool, wherein the adjusting member of the adjusting device is in a locked position;

[0042] Figure 5 Shown in accordance with Figure 4 A cross-sectional view of the intersection line BB in FIG.

[0043] Figure 6 Shown in accordance with Figure 4 The view of the view arrow G in FIG.

[0044] Figure 7a Shown in accordance with Figure 6 The cross-sectional view of the intersection line AA in ;

[0045] Figure 7b Shown in accordance with Figure 6 A cross-sectional view of the intersection line BB in FIG.

[0046] Figure 8 Show according to Figure 4 A side view of a tool of the embodiment of the present invention, wherein the adjusting member is in the operating position and the tool is in the non-actuated position;

[0047] Fig. 9 Shown in accordance with Figure 8 The cross-sectional view of the intersection line DD in ;

[0048] Fig.10 Shown in accordance with Figure 8 The view of the view arrow H in FIG.

[0049] Fig.11 Shown in accordance with Fig.10 A cross-sectional view of the intersection line CC in FIG.

[0050] Fig.12 Show according to Figure 8 A side view of the tool, wherein the tool is in a manipulated position;

[0051] Fig.13 Shown in accordance with Fig.12 A cross-sectional view of the intersection line FF in FIG.

[0052] Fig.14 Shown in accordance with Fig.12 The view of the view arrow I in the figure;

[0053] Fig.15 Shown in accordance with Fig.14 The cross-sectional view of the intersection line EE in ;

[0054] Fig.16 A side view showing the tool in an unactuated position, wherein the adjustment member is in a blade changing position;

[0055] Fig.17 a side view showing the tool in a blade changing position;

[0056] Fig.18 A side view showing a first housing-shaped operating part of the tool;

[0057] Fig.19 A perspective view showing the first operating member as seen from the oblique front;

[0058] Fig. 20 A perspective view showing the first operating member as seen from the oblique rear;

[0059] Fig.21 A side view showing a second operating member of the tool;

[0060] Fig. 22 Shown in accordance with Fig.21 The view of the view arrow J in FIG.

[0061] Fig.23 A perspective view showing a second operating member viewed from an oblique rear side;

[0062] Fig.24 Shown in accordance with Fig. 22 The view of the view arrow K in FIG.

[0063] Fig.25 A side view of the adjustment member is shown;

[0064] Fig.26 Shown in accordance with Fig.25 The view of the view arrow L in FIG.

[0065] Fig. 27 Shown in accordance with Fig.25 The view of the view arrow M in FIG.

[0066] Fig.28 showing a perspective view from a first side of the adjustment member;

[0067] Fig.29 showing a perspective view of the adjustment member from a second side opposite the first side;

[0068] Fig.30 An exploded view of a tool according to a second embodiment of the present invention is shown, wherein the blade device and components of the operating device are not shown;

[0069] Fig.31 Shown in accordance with Figure 1 A side view of a tool, wherein the adjustment device is in a locked position and the second operating part is in an unoperated position;

[0070] Fig.32 Shown in accordance with Fig.31 The view of the view arrow F in FIG.

[0071] Fig.33 Shown in accordance with Fig.32 The cross-sectional view of the intersection line AA in ;

[0072] Fig.34 Shown in accordance with Fig.31 A side view of the present invention, wherein the first operating component is transparently shown;

[0073] Fig.35 Shown in accordance with Fig.34 A cross-sectional view of the intersection line BB in FIG.

[0074] Fig.36 Shown in accordance with Fig.34 A side view of a tool, wherein the adjustment device is adjusted into an operating position;

[0075] Fig.37 Shown in accordance with Fig.36 The cross-sectional view of the intersection line DD in ;

[0076] Fig.38a Shown in accordance with Fig.36The view of the view arrow K in FIG.

[0077] Figure 38b Shown in accordance with Fig.38a A cross-sectional view of the intersection line CC in FIG.

[0078] Fig.39 Shown in accordance with Fig.36 The view of the view arrow K in FIG.

[0079] Fig.40 Shown in accordance with Fig.39 A cross-sectional view of the intersection line HH in FIG.

[0080] Fig.41 A side view of the tool is shown, wherein the adjusting device is in the operating position and the second operating part is in the operating position;

[0081] Fig.42 Shown in accordance with Fig.41 The view of the view arrow L in FIG.

[0082] Fig.43 Shown in accordance with Fig.42 The cross-sectional view of the intersection line EE in ;

[0083] Fig.44a Show according to Fig.43 sectional view of , wherein the adjustment device is in a blade changing position and the second operating member is in a blade changing position;

[0084] Figure 44b Shown in accordance with Fig.42 , wherein the adjustment device is in a blade changing position;

[0085] Fig.44c Shown in accordance with Figure 44b The cross-section diagram of the intersection line GG in ;

[0086] Fig.44d A perspective view showing a detailed partial view of an adjustment member;

[0087] Fig.45 A side view showing a detailed partial view of a first operating component, wherein the covered structure is shown in dashed lines;

[0088] Fig.46 Shown in accordance with Fig.45 A perspective view of a first operating member;

[0089] Fig.47 A side view showing a second operating member;

[0090] Fig.48 Shown in accordance with Fig.47 The view of the view arrow N in FIG.

[0091] Fig.49 Shown in accordance with Fig.48 The view of the view arrow O in FIG.

[0092] Fig.50 A perspective view showing a second operating member;

[0093] Fig.51 A detailed partial view showing an adjustment member;

[0094] Fig.52 Shown in accordance with Fig.51 The view of the view arrow Q in the figure;

[0095] Fig.53 Shown in accordance with Fig.51 The view of the view arrow S in the figure;

[0096] Fig.54 A perspective view showing an adjustment member;

[0097] Fig.55 Another perspective view showing the adjustment member;

[0098] Fig.56 An exploded view showing a third embodiment of a tool according to the present invention;

[0099] Fig.57 Shown in accordance with Fig.56 A side view of a tool, wherein the second operating part is in an unoperated position and the adjusting device is adjusted to the operating position;

[0100] Fig.58 Shown in accordance with Fig.57 A view of a tool, wherein the second operating member is in an operating position;

[0101] Fig.59 Shown in accordance with Fig.59 A cross-sectional view of the intersection line A3-A3 in FIG.

[0102] Fig.60 Shown in accordance with Fig.57 The view of the view arrow I in the figure;

[0103] Fig.61 Shown in accordance with Fig.57 A side view of the invention, wherein the second operating member is arranged in a rest position and the adjusting device is arranged in a locked position;

[0104] Fig.62 Shown in accordance with Fig.61 A cross-sectional view of the intersection line BB in FIG.

[0105] Fig.63 Shown in accordance with Fig.64 A cross-sectional view of the intersection line CC in FIG.

[0106] Fig.64 Shown corresponding to Fig.60 A top view of a tool;

[0107] Fig.65 Shown in accordance with Fig.57 A side view of the control device, wherein the adjustment device is in the operating position;

[0108] Fig.66 Shown in accordance with Fig.65 The cross-sectional view of the intersection line DD in ;

[0109] Fig.67 Shown in accordance with Fig.68 The cross-sectional view of the intersection line EE in ;

[0110] Fig.68 Shown corresponding to Fig.60 A top view of a tool;

[0111] Fig.69 Shown in accordance with Fig.57 , wherein the adjustment device is in a blade changing position;

[0112] Fig.70 A side view of the tool is shown, wherein the second operating member is in a blade changing position;

[0113] Fig.71 Shown in accordance with Fig.72 The cross-section diagram of the intersection line GG in ;

[0114] Fig.72 Shown corresponding to Fig.60 A top view of a tool;

[0115] Fig.73 Shown in accordance with Fig.72 A cross-sectional view of the intersection line FF;

[0116] Fig.74 A side view showing a first operating member;

[0117] Fig.75 Shown in accordance with Fig.74 A perspective view of a first operating member;

[0118] Fig.76 A side view showing a second operating member;

[0119] Fig.77 Shown in accordance with Fig.76 A perspective view of a second operating member;

[0120] Fig.78A side view of the adjustment member is shown;

[0121] Fig.79 Shown in accordance with Fig.78 The view of the view arrow J in FIG.

[0122] Fig.80 Shown in accordance with Fig.79 A cross-sectional view of the intersection line HH in FIG.

[0123] Fig.81 Shown in accordance with Fig.80 The view of the view arrow K in FIG.

[0124] Fig.82 A perspective view showing an adjustment member;

[0125] Fig.83 The adjustment member is shown from about Fig.82 A perspective view from the other side. DETAILED DESCRIPTION

[0126] The tool 10 according to the first embodiment has: Figure 1 The first operating part 11 and the second operating part 12 of the operating device 13 can be seen in FIG. The first operating part 11 and the second operating part 12 form a component joint G1 with a deflection axis a1, so that the second operating part 12 can be moved relative to the first fastening part 11 from Figure 1 The unmanipulated position shown in is deflected in the directions u1 and u2. Figure 1 It can be seen in FIG. 4 that the first actuating part 11 has a projection 19 at the rear end region 44 .

[0127] The first operating part 11 and the second operating part 12 are components of an operating device 13 for operating the Figure 2 15, which further comprises an actuator 14. In the sense of the present invention, a blade arrangement is referred to as a blade arrangement that includes not only a blade holder on which a blade can be detachably fastened, but also a one-piece blade. In this example, the tool 10 has a blade holder 30 that includes a blade 17 detachably held therein.

[0128] The task of the actuator 14 is to guide the blade device 15 and to move the blade device 15 from the second operating part 12 relative to the first operating part 11. Figure 1 The unmanipulated position shown in Figure 2 In the relative movement of the operating position shown in FIG. 1 , the movement is converted so that the blade device 15 is in accordance with Figure 1 The resting position and Figure 2 The cutting positions are offset between Figure 2, a sagittal plane S of the tool 10 is shown, which extends along the longitudinal center axis of the tool. The axis a1 is formed approximately at a right angle to the sagittal plane S.

[0129] Thus, in the rest position, the blade device 15 is arranged such that the tool component protects the user from contact with the blade 18 of the blade device 15, and in the cutting position, the blade 18 is extended relative to the protecting tool component so that the cutting process can be carried out. In the present embodiment, the protecting tool area is formed by the first operating part 11. Alternatively, however, the protection may be formed by the operating part 12 or alternatively by the two operating parts 11 and 12, which also applies to all subsequent embodiments.

[0130] Various embodiments of actuators are known from the prior art. In this example (see Figure 3 ), the guide device has two guides 41 and 42, each of which forms a hinge with the second operating part 12 and a hinge with the blade device 15, so that the blade device 15 can be moved between the rest position and the cutting position on the coupling curve. In addition, a support 43 is present as a component of the actuator 14, which forms a hinge with the guide 41 and a hinge with the first operating part 11. However, the variants of the actuator 14 are not restrictive and should only be used as examples.

[0131] It is important that in the tool 10, different operating states can be set by means of an adjustment device 16 comprising at least one locking device, here locking devices 50a and 50b, wherein each operating state has a defined degree of freedom of movement of the second operating part 12 relative to the first operating part 11. The locking devices 50a and 50b are synchronized. Each locking device 50a and 50b has an adjustment component 20 that can be deflected about a component deflection axis a2. As in Figure 3 As can be seen in the figure, the pivot axis a2 is formed by the shaft mechanism 22, which engages in a mating shaft mechanism 23 of the second operating part 12 and forms a pivot support. The tool 10 can be adjusted at least between an operating position, a locking position and a blade change position by means of the adjustment device 16. In the non-operated position of the second operating part 12, the adjustment of the adjustment member 20 takes place.

[0132] In the locked position of the adjusting device 16, the adjusting member 20 is adjusted to Figure 4 In the position shown in FIG. 1 , the locking position is between the operating position and the blade changing position in the adjustment sequence of the adjustment member 20. Figure 4 In the locked position, the second operating part 12 cannot be moved relative to the first operating part 11 in the direction u1 from the non-actuated position (see Figure 4 ) to the manipulated position (see Figure 2 ). The second operating member 12 is deflected from the unoperated position along the direction u2 to the blade changing position (see Figure 4 ) is also impossible.

[0133] The mating structures 27a and 27b in the form of projections of the adjustment member 20 (see Figure 5 and 7a ) forms first mating surfaces 32a and 32b, which cooperate with locking surfaces 34a and 34b of protrusions 29a and 29b of protrusion 19. The mating structure 26 in the form of a tab of the adjustment member 20 forms a mating surface 33, which cooperates with a locking surface 35 of the protrusion 19. The locking surfaces 34a and 34b and the locking surface 35 are located in the movement track of the adjustment member 20, so that the second operating part 12 cannot be deflected in directions u1 and u2, and the adjustment member 20 is supported on the second operating part in a deflectable manner. Figure 7a It can be seen in FIG. 1 that the counter surfaces 32 a and 32 b as well as 33 are spaced apart from one another and are offset relative to one another with respect to the deflection path with respect to the blocking surfaces 34 a , 34 b and 35 .

[0134] exist Figure 3 and 7a It can be seen in FIG. 2 that a locking mechanism 46 is formed on the counter structure 26 , which locking mechanism cooperates with a counter-locking mechanism 47 of the counter surface 35 and prevents an unintentional adjustment of the adjustment member 20 out of the locked position.

[0135] exist Figure 7b It can be seen that the spring mechanism 28 is connected to the adjusting member 20—here formed in one piece—which is supported on a bearing surface 31 of the second actuating part 12 and urges the adjusting member 20 into the locking position in the blade changing position.

[0136] In the operating position of the adjusting device 16, the adjusting member 20 is arranged in accordance with Figure 8 and 9 In a position deflected around the deflection axis a2 in the opposite clockwise direction relative to the locked position. The second operating component 12 can be deflected from the unoperated position to the operated position in the direction u1 relative to the first operating component 11 and deflected from the operated position to the unoperated position in the direction u2. The return of the second operating component 12 from the operated position to the unoperated position relative to the first operating component 11 is performed by a spring (not shown) in this example, which is tensioned during the movement from the unoperated position to the operated position. The deflection movement of the second operating component 12 from the unoperated position in the direction u2 to the blade change position is locked in this position of the adjustment member 20.

[0137] As in Figures 8 to 15 In, especially in Fig. 9 and 11 As can be seen in the figure, in the operating position, the first mating surfaces 32a and 32b interact with the first locking surfaces 34a and 34b and prevent movement in the direction u2 from the unoperated position of the second operating component 12. Movement in the direction u1 from the unoperated position to the operated position is possible because the locking surface 35 is not arranged in the movement track of the mating surface 33. The mating structure 26 including the mating surface 33 can move past the locking structure 29 including the second locking surface 35.

[0138] exist Figures 12 to 15 The actuated position is shown in FIG. The locking surface 35 abuts against the stopper surface 51 of the second actuating component 12 in the actuated position (see FIG. Fig.15 ) In this position, the blade device 15 moves into the cutting position.

[0139] If the adjustment member 20 is in the blade changing position (see Fig.16 and 17 ), the second operating member 12 can be moved relative to the first operating member 11 in accordance with Fig.16 The unactuated position is deflected in the direction u2 to the blade changing position (see Fig.17 ). In this position, the use of the blade device 15 is possible.

[0140] In the blade changing position of the adjustment member 20, the engagement surfaces 34a and 34b are temporarily disengaged from the blocking surfaces 32a and 32b so that they can move past each other (see Fig.16 ). In the blade changing position, the spring mechanism 28 loads the adjusting member 20 into the locking position. Here, the spring mechanism 28 is supported on the support surface 31 of the second operating component 12. That is, the adjusting member 20 automatically moves back to the locking position after being adjusted to the blade changing position. When the second operating component 12 moves from the blade changing position in the direction u1 to the unoperated position, the first inclined surface 51 of the adjusting member 20 and the second inclined surface 52 of the protrusion 19 come into contact and the adjusting member 20 moves to the blade changing position opposite to the force of the spring mechanism 28 until the two inclined surfaces 45 and 51 have moved past each other. When the second operating component 12 has reached the unoperated position, the adjusting member 20 is moved to the locking position by the spring mechanism 28 and the second operating component 12 can neither move to the operated position nor move to the blade changing position without the active adjustment of the adjusting member 20.

[0141] Of course, according to an alternative embodiment of the tool 10, the adjustment component 20 including the matching structures 26 and 27a and 27b with matching surfaces 32a, 32b and 33 can be supported pivotably on the first operating part 11 and the locking surfaces 34a, 34b and 35 can be formed on the protrusion of the second operating part 12.

[0142] The adjusting member 20 has a locking mechanism 21, by means of which the adjusting member 20 can be locked in at least one position, in the present example in two positions, namely in the operating position and the locking position. The locking mechanism 21 works together with matching locking mechanisms 24a and 24b (see FIGS. 7 and 11), which are formed on the second operating part 12 in this example. In this embodiment, the locking mechanism 21 is formed on an elastically deformable arm, wherein the locking mechanism 21 can be moved out of engagement with the matching locking mechanism by the elastic deformation of the arm.

[0143] By overcoming the minimum adjustment force on the adjustment member 20, the locking mechanism 21 is disengaged from the engagement with the matching locking mechanism 24a, for example, when the adjustment member 20 is adjusted from the locking position to the operating position, and is locked with the corresponding matching locking mechanism 24b when the operating position is reached, so as to fix the operating position of the adjustment member 20 (see Fig.11 ), the cooperating locking mechanism is provided for locking the position (see Figure 7a ).

[0144] exist Figures 18 to 20 , the first operating part 11 is shown as a single part. The operating part 11 is designed in a shell-like manner and has a closed back 37 and side walls 38a and 38b. In the front end area 36, ​​a blade discharge opening 39 is formed. An opening 40 is formed opposite the back 37. The projection 19 is designed as a plate on the rear end area 44 in this example, which has a small thickness in the Y direction and extends essentially in the xz direction. The protrusions extend on both sides of the projection 19 in the directions y1 and y2.

[0145] Figures 22 to 25 The second operating part 12 is shown as a single component. The second operating part has hinge structures 48 and 49 for pivotably supporting the guide members 41 and 42 and a hinge structure 23 for pivotably supporting the adjustment member 20. Fig. 22 The bearing surface 31 can be seen in FIG.

[0146] The adjustment member 20 is Figures 26 to 30 20. In this example, the spring mechanism 28 and the locking mechanism 21 are integrally formed on the adjustment member 20. However, the spring mechanism can also be fastened to the adjustment member as an alternative. The shaft mechanism 22 is also integrally formed.

[0147] In this example, the adjustment member 20 (see Figures 25 to 29 ) has two side plates 25a and 25b, which are connected to each other by a web 26. In addition, projections 27a and 27b are formed on the side plates 25a and 25b, which extend toward each other in the y direction relative to the gap between the side plates 25a and 25b. The first matching structures 27a and 27b form first matching surfaces 32a and 32b, which together with the first locking surfaces 34a and 34b of the locking structure 29 can prevent the second operating part 12 from deflecting along the direction u2, while the second matching structure 26 forms a second matching surface 33, which - depending on the position of the adjustment member 20 - together with the second locking surface 35 can prevent the second operating part from moving along the direction u1.

[0148] exist Figures 30 to 55 A second exemplary embodiment is shown in FIG. 1 . The tool is generally designated by reference numeral 110 . The tool 110 according to the second exemplary embodiment corresponds substantially to the first exemplary embodiment. It differs in terms of the adjustment device 116 .

[0149] In this embodiment, the blade device 115 is only schematically shown in FIG. Fig.33 . The actuator 114 is also only schematically indicated, because - as in the first embodiment - different embodiments of the actuator can be used. For example, the blade device 115 and the actuator 114 are designed as in the first embodiment. The blade device 115 has a blade support including a blade 117 and a cutting edge 118 formed thereon. The actuator 114 has the same function as in the first embodiment, but can be designed differently. The guide device of the blade device 115, which includes two guide members, corresponds to the first embodiment, for example.

[0150] according to Fig.30 , the components of the tool 110 that are important for the present invention are shown in an exploded view. The tool 110 has a first operating part 111 and a second operating part 112 of an operating device 113, which also has an actuator 114. The operating parts 111 and 112 mutually form a pivot joint G1 with a pivot axis a1 and are each designed to be longitudinally extended in the manner of a pliers operation. The pivot joint G1 is located at the front end region of the tool 110.

[0151] exist Fig.45 and 4614 shows the first operating part 111. The first operating part has a back 145 and oppositely arranged side walls 146a and 146b connected thereto, which form an inner space 141 between them. The first operating part 111 forms the lower opening 135 and the blade discharge opening 136. In the middle area 147 arranged between the front end area 143 and the rear end area 144, the side walls 146a and 146b have a height H2, which is smaller than the height H1 in the area closer to the front end 137. In this configuration, the side walls 146a and 146b at least partially cover the guide device for the blade device 115 and the main part of the actuator 114.

[0152] In the rear end region 144 , a locking engagement structure 138 is formed on the two side walls 146 a and 146 b , which projects into the receiving space 141 and is part of the locking devices 150 a and 150 b of the adjusting device 116 . Fig.45 In FIG. 1 , the locking structure 138 is shown covered by dashed lines. Fig.46 As can be seen in FIG. 1 , for example, a connecting structure 148 can connect the side walls 146a and 146b to each other on the bottom side and separate the openings 135 and 136 from each other. The stability of the first operating part is increased by means of the connecting structure 148. At the rear end region 144, the receiving space 141 is limited by a rear wall 149.

[0153] The second operating member 112 is Figures 47 to 50 . The second operating part 112 is provided with a protrusion 119 at the end region opposite to the deflection axis a1. The protrusion 119 is plate-shaped and extends substantially in the xz plane. The shaft mechanism 122 protrudes from the protrusion 119 on both sides in the directions y1 and y2. These shaft mechanisms are arranged so as to form a deflection hinge G2 with a complementary mating shaft mechanism 123 of the adjustment member 120 for supporting the adjustment member 120 so as to be deflectable about the member deflection axis a2. The member deflection axis is formed at right angles to the sagittal plane S, which is at the Fig.32 1 and positioned as in the first embodiment.

[0154] A spring mechanism 128 is formed on the projection 119, the function of which is explained below. In addition, the projection 119 is provided with cooperating locking mechanisms 124a and 124b, which cooperate with the locking mechanism 121 of the adjustment member 120 to fix the adjustment member 120 in the operating position and prevent movement into the operating position in the locking position. They can be formed, for example, in the form of a projection / recess pairing.

[0155] A guide mechanism 151 is provided adjacent to the mating locking mechanism 124a, which guides the locking mechanism 121 again into engagement with the mating locking mechanism 124b in the locked position when returning to the locked position, and the locking mechanism moves out of engagement with the mating locking mechanism 124a or 124b when the adjustment member 120 is adjusted to the blade replacement position. The guide mechanism 151 can be configured, for example, in the form of a groove.

[0156] The adjustment member 120 is Figures 51 to 55 1. The adjusting member has two plate areas 125a and 125b, between which a partial area of ​​the projection 119 can be arranged. The axis means 122 of the projection 119 is designed to cooperate with the mating axis means 123 of the adjusting member 120, wherein they form a pivot joint G2. The plate areas 125a and 125b are connected to each other via a web 126. The web 126 forms a bearing surface for a spring means 128.

[0157] Extending from the two plate regions 125a and 125b is an actuating attachment 129 which is provided for adjusting the adjusting device 116. In this exemplary embodiment, the locking mechanism 121 is formed in each of the plate regions 125a and 125b by a tongue which is released from the respective plate region and which is connected to the material of the respective plate region 125a or 125b only at one end region. Fig.52 and 53 As can be seen in FIG. 1 , a projection 130 is formed on each locking mechanism 121 , wherein the projections 130 of the two locking mechanisms 121 face toward one another and point toward the gap 131 between the plate regions 125 a and 125 b .

[0158] A mating structure 140, which is designed as a wall and includes a partially cylindrical mating surface 133, protrudes coaxially and parallel to the deflection axis a2 in the directions y1 and y2 from each plate area 125a and 125b, and is respectively part of one of two synchronous locking devices 150a or 150b and is provided to cooperate with a locking structure 138 on each of the side walls 146a and 146b of the first operating part 111 to block the movement of the second operating part 112 relative to the first operating part 111 in the direction u1 and / or in the direction u2. When the second operating part 112 has previously been adjusted to the blade changing position, the fixing surface 134 (see Fig.51 and 54 ) is configured to automatically guide the locking structure and the mating structure into engagement.

[0159] As in the first exemplary embodiment, the adjusting device 116 is adjustable between a locking position, an operating position and a blade changing position.

[0160] In the locked position (see Figures 31 to 35 ) a movement from the unactuated position in the direction u1 to the actuated position and the blade changing position is not possible. Fig.33 , the mating surface 133 cooperates with the locking surface 139 of the locking structure 138. Here, the mating surface 133 surrounds the locking surface 139 in such a way that the surface area 133a of the surface 133 cooperates with the surface area 139a of the surface 139 and the surface area 133b arranged diametrically opposite to the surface 133a cooperates with the surface area 139b and prevents the second operating part 112 from moving in the directions u1 and u2 from the unoperated position. Therefore, not only the movement of the second operating part 112 relative to the first operating part 111 to the operated position is prevented, but also the movement to the blade changing position is prevented.

[0161] From following Fig.31 In the locking position between the operating position and the blade changing position in the adjustment sequence of the adjustment member 120, the adjustment device 116 can be adjusted to the position according to Figures 37 to 43 The tool 110 is in the operating position of the adjusting member 120 in the non-actuated position (see Figures 37 to 40 ) and the position of manipulation (see Figures 41 to 43 ). From the unoperated position (see Figures 37 to 40 ), the second operating member 112 can be adjusted to an operating position along the direction u1 (see Figures 41 to 43 ) and can be adjusted from the actuated position along direction u2 to the non-actuated position.

[0162] Especially in Fig.40 It can be seen in FIG. 1 that the mating surface 133 of the adjusting member 120 interacts with the blocking surface 139 in such a way that a movement of the second actuating part 112 in the direction u2 is blocked, while a movement in the direction u1 into the actuated position is possible without problems. Fig.40 It can be seen that in the operating position of the adjusting member 120, the surface area 133a interacts with the surface area 139a to block the movement of the second operating part 112 in the direction u2, while the surface areas 133b and 139b can move past each other when the second operating part 112 moves in the direction u1.

[0163] In accordance with Fig.36In the non-actuated position of the blade device 115, the blade device 115 is in a rest position, in which the cutting edge 118 of the blade 117 of the knife area is shielded from contact and is inaccessible. In the present example, the first operating part 111 forms these protected areas, but alternatively the second operating part 112 or alternatively the first operating part 111 and the second operating part 112 can also form these areas.

[0164] In the actuated position, the blade device 115 is in the cutting position (see Fig.41 ), so that the blade 118 protrudes relative to the shielded tool part. In this example, the blade 118 comes out of the opening 136 of the first operating part 111 in the operated position and protrudes relative to the front tool end 137. In the operated position (see Fig.43 ), the securing surface 134 of the adjusting member 120 interacts with the locking engagement structure 138 and prevents the movement of the adjusting member 120 along the direction p2 into the locking position.

[0165] The adjustment member 120 is adjusted from Fig.32 The rotation of the adjusting device 116 in the direction p2 from the locked position places it in the blade changing position (see Fig.44a ). In the blade changing position, the movement of the second operating part from the unoperated position in the direction u1 to the operated position is not possible, whereas the movement in the direction u2 to the blade changing position according to FIG. 44 is possible, so that the blade device 115 can be activated and the blade 117 can be replaced. Fig.44a It is conceivable that the surface areas 133 b and 139 b block a movement of the second operating part 112 in the direction u1 , whereas the surface areas 133 a and 139 a are movable past one another, so that a movement of the second operating part 112 in the direction u2 is possible.

[0166] The spring mechanism 128 of the protrusion 119 (see Fig.44c ) in the locked position abuts against the tab 126 of the adjusting member 120. When the adjusting member 120 moves into the blade changing position, the spring mechanism 128 is elastically deformed and loads the adjusting member 120 from the blade changing position into the locked position.

[0167] When the adjustment member 120 moves from the locking position to the blade changing position (in this embodiment, against the spring force of the spring mechanism 128), the locking mechanism 121 moves from the engagement with the matching locking mechanism 124b to the engagement with the guide mechanism 151. In the reverse movement of the adjustment member 120 to the locking position (the reverse movement is performed by the return force of the spring mechanism 128 in this embodiment, but the reverse movement can also be performed manually as an alternative), the locking mechanism 121 is guided by the guide mechanism 151 to the engagement with the matching locking mechanism 124b, wherein the adjustment member 120 moves to the locking position.

[0168] If the second actuating part 112 is deflected back from the blade changing position in the direction u1 to the non-actuated position, the adjusting surface 152 of the tab 126 collides with the locking structure 138, whereby the adjusting member 120 is briefly moved into the blade changing position, so that the mating surface 133 can be moved into engagement with the locking surface 139. After the mating surface 133 and the locking surface 139 are engaged, no force acts on the adjusting surface 152 and the spring mechanism 128 moves the adjusting member 120 back into the locking position, wherein the locking mechanism 121 moves into engagement with the mating locking mechanism 124b.

[0169] exist Figures 56 to 83 The third embodiment is shown in . In principle, the tool 210 according to the third embodiment corresponds to the first two embodiments, but differs with regard to the adjustment device 216. The adjustment device 216 has two locking devices 250a and 250b.

[0170] For the sake of clarity, the blade device 215 is only schematically shown in this embodiment. Fig.59 The blade device in this embodiment has a blade holder, which includes a blade 217 that can be detachably held therein, and the blade has a cutting edge 218, which can only be Fig.59 215 is shown in dotted form. However, it is constructed corresponding to the first embodiment. However, alternatively, the blade device 215 may also be constructed in one piece, for example.

[0171] according to Fig.56In this embodiment, the cutter has a first operating part 211 and a second operating part 212 of an operating device 213 corresponding to the first embodiment. The actuator 214 is also constructed as in the first embodiment so that the blade device 215 is offset between the rest position and the cutting position. In this embodiment, the actuator 214 has a guide device for the blade device 215, and the guide device has two guide members 241 and 242, which are respectively supported on the second operating part 212 and the blade device 215 in a deflectable manner. The support member 243 is supported on the first operating part 211 and forms a deflection hinge with the guide member 241. However, the present invention does not involve the construction of the actuator 214 of the operating device 213. The actuator can also be constructed differently alternatively. It is important to explain the operating parts 211 and 212 and the adjusting device 216.

[0172] The second operating part 212 has in this example a projection 219 on which the adjustment member 220 is supported translationally movable. In this example, the adjustment member 220 is linearly movable in directions p1 and p2, but it can alternatively also be movable on a curved track or a freely shaped track.

[0173] The adjusting member 220 is loaded into the locked position by a spring mechanism 228. The spring mechanism 228 is received in a spring seat 229 on a guide 227 of the projection 219. The guide is formed as a groove in one area and as a notch in another area on both sides of the projection 219. The notch forms a spring seat in which the spring mechanism 228 is arranged. (I still need information here, the function is not completely clear to me). The guide 227 is used to guide the adjusting member 220.

[0174] The functionality of the adjusting member 220 is the same as in the first and second exemplary embodiments, ie the adjusting member 220 can be adjusted into an operating position, a locking position and a blade changing position by its movement.

[0175] The adjusting member 220 is provided with projections 232 pointing inwardly to each other, which engage in the guide 227. In this way, the movement of the adjusting member 220 is guided and limited by the guide 227. The adjusting member 220 is thereby also fixedly held on the projection 219. In addition, mating locking means 224a, 224b are formed on the projection 219, which cooperate with the locking means 221 of the adjusting member 220.

[0176] The locking mechanism 221 protrudes into the inner space of the adjusting member 220 of the U-shaped structure. The adjusting member 220 can be locked in the operating position by means of the locking mechanism 221 and the matching locking mechanisms 224a and 224b. If the adjusting member 220 moves out of the locking structure 224a of the operating position, the locking structure 224b allows the adjusting member 220 to move in the locking position and the blade changing position. The movement between the locking structure 224a and 224b is realized by the operating force of the increase on the adjusting member 220. The spring mechanism 228 loads the adjusting member 220 into the locking position.

[0177] The adjustment member 220 has a matching structure 240 including matching surfaces 233a and 233b, which cooperates with a locking structure 238 including locking surfaces 239a and 239b of the first operating part 211. The locking structure 238 is located in the receiving space 225 of the first operating part 211 and is therefore Fig.56 Only the dashed line is shown. Fig.56 In FIG. 2 , the second operating member 212 is shown in an unoperated position relative to the first operating member 211. Fig.58 The position of the manipulation is shown in FIG.

[0178] In the locked position of the adjustment member 220 (see Figures 59 to 62 ), the locking structure 238 is arranged in the middle area F of the matching structure 240, and the locking position is between the operating position and the blade changing position in the adjustment sequence. The locking surface 239a acts together with the matching surface 233b and the locking surface 239b acts together with the matching surface 233a. The second operating component can neither move in the direction u1 nor in the direction u2. The blade device 215 cannot therefore move out of the rest position. The blade device remains in the rest position, in which the protection mechanism of the first operating component 211 prevents contact with the blade 217, especially the blade 218. The movement of the second operating component 212 relative to the first operating component 211 in the direction u2 to the blade changing position is impossible.

[0179] If the adjustment member 220 is set in the operating position (see Figures 65 to 68 ), the locking structure 238 is in the region E of the matching structure 240. In the operating position, the second operating part 212 can be moved from the unoperated position to the operated position, wherein the blade device 215 is deflected from the rest position to the cutting position and the blade 217 including the cutting edge 218 comes out of the opening 235 of the first operating part 211. The locking surface 239a and the matching surface 233b prevent the second operating part 212 from moving to the blade changing position.

[0180] In the blade changing position of the adjustment member 220 (see Figures 69 to 73 ), the locking structure 238 is arranged in the region H of the adjusting member 220. In this position, the movement in the operating position along the direction u1 is blocked by the joint action of the matching surface 233a and the locking surface 239b. The movement of the second operating part 212 to the blade changing position along the direction u2 is possible relative to the first operating part 211. The adjusting member 220 must be adjusted to the blade changing position against the spring force and is deflected to the locking position again by the spring mechanism 228 when the user force is reduced.

[0181] The second operating element 212 is returned to the non-operated position (see Fig.71 ), the inclined surface 222 of the matching structure 240 and the inclined surface 223 of the locking structure 238 come into contact and deflect the adjusting member 220 to the blade changing position (automatically adjusted?). After the inclined surface 222 has passed the inclined surface 223, in the unoperated position of the second operating element 212, the adjusting member 220 is adjusted to the locking position by the spring mechanism 228. The tool is thereby in a secured state and an accidental deviation of the blade device 215 into the cutting position after the blade is changed is impossible. In other words, there is no risk that the second operating component 212 is accidentally adjusted to the operated position after the blade is changed. The risk of injury is thereby significantly reduced.

[0182] exist Fig.73 As can be seen in FIG. 2 , the locking mechanism 221 is in engagement with the mating structure 224 b of the mating locking mechanism 224 .

[0183] In accordance with Fig.74 In the side view of the first housing-shaped operating component 211, the locking structure 238 is shown in dashed lines. Fig.75 It can be seen in FIG. 2 that the locking structure 238 is formed on two opposite side walls 236a and 236b of the tool 210. Fig.75 It can also be seen that the underside of the chisel 210 which is opposite the blade back 237 is open to the receiving space 225 except for the web 226 connecting the side walls 236 a and 236 b .

[0184] The second operating member 212 is Fig.76 In the side view and Fig.77 227 and the matching locking mechanism 224 including the matching structures 224a and 224b. Fig.77 Only the guide 227 can be seen in the figure, but the guide 227 is formed on both sides of the projection 219. The spring seat 229 in the area of ​​the guide 227 can also be seen.

[0185] exist Figures 78 to 83 The adjustment member 220 is shown in FIG. Fig.79 and81 The matching structures 240 formed on both sides of the adjusting member 220 can be seen in FIG. Fig.80 The locking mechanism 221 can be seen in the cross-sectional view of , which works together with the matching button mechanism 224 of the second operating component 212. Fig.81 and 82 The projection 232 can be seen in FIG. 2 , which engages in the guide 227 and guides the adjusting member 220 .

Claims

1. Cutting tools (10, 110, 210), including: A first operating part (11, 111, 211) and a second operating part (12, 112, 212) of an operating device (13, 113, 213), wherein the second operating part forms a hinge (a1) with the first operating part (11) and can be deflected in a first direction (u1) relative to the first operating part (11) about a part deflection axis (a1) from an unoperated position to move a blade device (15, 115, 215) from a rest position to a cutting position, and can be deflected in a second direction (u2) to move the second operating part (12) to a blade replacement position; An adjusting device (16) comprises an adjusting component (20, 120, 220), by means of which different degrees of freedom regarding the movement of a second operating part (12) relative to a first operating part (11) can be adjusted, so that when the adjusting component (20) is adjusted to an operating position or a blade changing position, the first or second of the deflection directions (u1, u2) is blocked, or when adjusted to a locking position, both deflection directions (u1, u2) are blocked.

2. The tool according to claim 1, characterized in that The adjusting device is designed such that the adjustment of the locking position is arranged between the adjustment of the blade changing position and the operating position with respect to the adjustment sequence of the adjusting element (20).

3. The tool according to any one of the preceding claims, characterized in that The adjustment member (20) is movable in translation or rotation between the positions, namely the operating position, the locking position and the blade changing position.

4. The tool according to any one of the preceding claims, characterized in that In the unactuated position, the counter surface is arranged coaxially with respect to the component pivot axis ( a2 ).

5. The tool according to any one of the preceding claims, characterized in that The blocking surface and the matching surface extend in a direction parallel to the component deflection axis (a2).

6. The tool according to any one of the preceding claims, characterized in that The blocking surface and / or the counter surface is / are designed to be partially cylindrical.

7. The tool according to any one of the preceding claims, characterized in that The blocking surfaces (34a, 34b, 35) and the matching surfaces (32a, 32b, 33) are formed on a rear end region (44) of the tool.

8. The tool according to any one of the preceding claims, characterized in that The blocking surface and / or the counter surface is formed on a projection of the respective actuating part.

9. The tool according to any one of the preceding claims, characterized in that The adjusting member (20, 120) has a locking mechanism (21) which is moved into a positive engagement with a counter locking mechanism (24) in at least one of a locking position, an operating position and a blade changing position.

10. The tool according to any one of the preceding claims, characterized in that The adjusting component (20, 120) has a restoring element in the form of a spring mechanism (28), which loads the adjusting component (20, 120) into the locking position.

11. The tool according to any one of the preceding claims, characterized in that The locking structure including at least one locking surface and the matching structure including at least one matching surface are formed with inclined surfaces so that when the second operating part moves from the blade changing position to the non-operated position, the adjustment component is moved so that the locking surface and the matching surface can move past each other.

12. The tool according to any one of the preceding claims, characterized in that The adjusting device (16, 116) has two locking devices (50a, 50b, 150a, 150b) which are synchronized with each other.

13. The tool according to any one of the preceding claims, characterized in that Components of a first locking device (50a, 150a) and a second locking device (50b, 150b) are assigned to the adjustment member (20, 120).

14. The tool according to any one of the preceding claims, characterized in that The component deflection axis (a1) is arranged approximately at a right angle to the sagittal plane (E).

15. The tool according to any one of the preceding claims, characterized in that The component pivot axis (a2) is arranged substantially parallel to the component pivot axis (a1).

Images