Peeling tool, tool part pair for peeling tool and method for peeling cable

Abstract

The present disclosure relates to a stripping tool (1) comprising a pair of tool jaws (2, 3) displaceable towards each other and comprising a pair of tool parts (4, 5) having a first tool part (4) and a second tool part (5) for stripping a cable (8), whereby each tool part (4, 5) has a cutting body (9) for receiving a partial region of the cable (8), the cutting body (9) has a cutting portion (16, 17) with a cutting edge (11), whereby the cutting body (9) is displaceable in the axial direction (a) in relation to the tool part base (12) orthogonally to the engagement direction (r). In order to obtain advantageous cutting results, it is proposed that the cutting body (9) and the tool part base (12) have guide surfaces (21, 44) which are operatively connected to one another and which ensure a displacement after overcoming the holding force, whereby the guide surfaces (21, 44) extend at the same obtuse angle with respect to the joining direction (r), a force application to the cutting body (9) can be obtained solely by a displacement of the tool jaws (2, 3) in the engagement direction (r), which force application results in a displacement of the guide surface (44) of the cutting body (9) and thus of the cutting body (9) relative to the guide surface (21) of the tool part base (12), which displacement has a displacement component in the axial direction (a) corresponding to the angle.

Description

Technical Field

[0001] The present disclosure relates to a stripping tool, which comprises a pair of tool jaws that can be shifted toward each other for a stripping process, the pair of tool jaws having a first tool jaw and a second tool jaw, and the stripping tool comprises a pair of tool parts, the pair of tool parts having a first tool part and a second tool part, for stripping a cable having a cable core and an insulating sheath, whereby a cutting portion is also provided for acting on the cable during the stripping process, whereby each tool part has a cutting body for receiving a partial area of ​​the cable, whereby the cutting body has a cutting portion comprising a cutting edge, whereby the cutting edge limits a free space of the cutting body in which provision is made for receiving the cable core, whereby the tool part has a tool part base, which is received on the tool jaws, whereby the cutting body of the tool part can be shifted in an axial direction orthogonal to the joining direction relative to the tool part base.

[0002] The present disclosure also relates to a tool component pair for a stripping tool of the type described above.

[0003] Furthermore, a method for stripping a cable having a cable core and an insulating sheath is described, comprising the method steps of:

[0004] - arranging the cable between two opposing cutting bodies of the first tool part and the second tool part, each cutting body having at least one cutting portion;

[0005] - displacing the first tool part in the joining direction towards the second tool part;

[0006] - Cutting an axial partial section of the insulating sheath of the cable using the cutting portion of the first tool part and the cutting portion of the second tool part. Background Art

[0007] Stripping tools of the type discussed, as well as their tool component pairs and methods for stripping cables, are already known. Using this type of stripping tool, at least the cable can be prepared for stripping by severing the cable's insulation sheath via a cutting portion over a partial axial section extending in the longitudinal direction of the cable. The insulation section, separated from the insulation sheath remaining on the cable, is then typically removed manually. Stripping tools of this type are known, for example, from US Pat. No. 10,554,006 B2, EP Pat. No. 0,780,943 A1, or EP Pat. No. 3,718,185 A1 (US Pat. No. 2021 / 0006049 A1).

[0008] Stripping tools for cutting insulation jackets can preferably be hydraulically and / or electrically powered devices comprising tool jaws that can be moved toward each other. The tool component with the cutting portion can be integrally formed with the tool jaws, but, as is often the case and generally preferred, can also be replaceably mounted thereon. Stripping tools are also known in which both tool jaws are actively displaceable onto corresponding opposing tool jaws, or in which at least one tool jaw is displaceable while the opposing tool jaw is fixedly attached to the stripping tool. Summary of the Invention

[0009] Based on the above-mentioned prior art, the technical problem to be solved by the present invention is to provide a stripping tool of the above-mentioned type, a tool component pair for a stripping tool and a method for stripping a cable, thereby achieving favorable cutting results and favorable cable segment stripping.

[0010] In the case of a stripping tool, a possible solution to the technical problem lies in that the tool part base and the cutting body have guide surfaces which are operably connected to one another and ensure displacement after overcoming the retaining force, whereby the guide surfaces extend at the same obtuse angle relative to the joining direction, whereby a force can be applied to the cutting body solely by a displacement of the tool jaws in the joining direction, which force results in a displacement of the guide surfaces of the cutting body and therefore of the cutting body relative to the guide surfaces of the tool part base, the displacement having a movement component in the axial direction corresponding to the angle.

[0011] The holding force can be provided in various ways, as described below. It can be achieved by a corresponding setting of the friction force, but can also be achieved by a form fit.

[0012] The proposed stripping tool design produces advantageous cutting and stripping results on cables. The stripping tool not only allows for a simple, easy-to-handle incision of the cable's insulation jacket, but also effectively displaces or removes insulation segments from the cable core. To this end, the tool component comprises a tool component base, which is mounted relative to the tool jaws, in particular fixedly, or formed integrally with the tool jaws, and a cutting body, which is displaceable relative to the tool component base. The cutting body can be displaced along an inclined guide surface in the axial direction of the tool component, in the longitudinal direction of the cable disposed between the opposing tool components.

[0013] In addition to the axial displaceability of the cutting body, the tool part itself and / or the cutting body can preferably be pivoted relative to the tool jaws or the tool part base, respectively, about a longitudinal axis corresponding to the axial direction. The pivotability can be achieved within a relatively small pivot angle range, preferably between approximately 1 and 5 degrees. Independently or additionally, the tool part base can, in particular, have clearance relative to the tool jaws in order to dissipate forces introduced into the cable to be cut via the tool jaws during the cutting process, i.e., to prevent the cutting sections of the opposing tool parts from tilting or blocking each other.

[0014] By forming the tool part in this manner, the stripping tool can perform the cutting of the insulating jacket and the displacement of the insulating jacket relative to the cable core in two consecutive steps. The displacement of the insulating jacket can preferably occur only after overcoming the retaining force. The retaining force also does not allow movement between the operatively connected guide surfaces. The retaining force can be achieved by setting a frictional force between the cutting body and the insulating jacket. As will be described in more detail below, the retaining force can also be achieved by a form fit. As long as the cutting portion is only in contact with the insulating jacket of the cable but not yet in contact with the cutting portion of the opposing tool part, only the frictional force between the cutting portion and the insulating jacket acts on the cutting portion. Preferably, this results in a self-locking interlocking of the cutting portion, in which case the cutting body has not yet been displaced in the axial direction relative to the tool part base. Only when the opposing cutting portions of the stripping tool are in contact with each other or almost in contact in the second step is a force acting in the axial direction generated, which causes the cutting body to displace along the guide surface relative to the tool part base.

[0015] This results in the end section of the cut of the insulating sheath being displaced relative to the cable core, whereby the end section can be removed from the cable core in terms of manipulation. Closing the tool jaws enables the cut of the insulating sheath and the displacement of the insulating sheath relative to the cable core.

[0016] When the opposing cuts are in contact with one another or with one another except for a millimeter or a few millimeters (or fractions thereof), i.e. when the insulating sheath is completely or almost severed, the system of opposing cuts can be considered as a single body on which two forces acting opposite to one another act. The axial force is generated by the opposing forces acting substantially transversely to the longitudinal extension of the cable.

[0017] The previously stable position of the cutting section is canceled, and the cutting body is displaced relative to the tool base of the tool part. The resulting axial force is, for example, between 10% and 20% of the applied force of the stripping tool. Even with relatively large cable cross-sections, this is sufficient to displace the insulation jacket relative to the cable core, if necessary with relatively hard insulation jacket materials.

[0018] Due to the axial displacement, the notched end section of the end side of the insulating sheath can be separated from the remaining insulating sheath even if the end section has not yet been completely cut through. The force generated in the axial direction can also optionally produce the tearing that is still required.

[0019] Since the insulating sheath does not have to be completely cut through before the cutting body is displaced relative to the tool member base, a certain distance between the cutting portion and the cable core can be maintained, which prevents the strands of the cable core from being cut into.

[0020] The principles of the stripping tool described above can be applied to cables of varying outer diameters. Furthermore, the stripping tool is also suitable for cables with multiple insulation sheaths. The insulation material itself can be softer or harder, for example made of rubber, PVC, PE, etc. The cable core can be monolithic or comprised of several strands. The shape of the cutting portion can also be adapted to various cable cross-sectional shapes, such as flat cables, segmented cables, or cables comprising multiple individually insulated wires.

[0021] The tool part is preferably designed for cutting in particular 25 mm 2 Up to 300mm 2 In practice, the proposed stripping tool has proven reliable for cables with a core diameter of approximately 9 mm to 11 mm and an insulating sheath outer diameter of approximately 13 mm to 19 mm. The cutting portion, preferably formed as a semicircular cutting edge, can restrict a free space having a diameter of, for example, 12 mm. An angle of approximately 5 to 20 degrees has proven to be advantageous for the cutting portion.

[0022] However, the above information is to be understood only in an exemplary manner in order to describe the approximate size of the stripping tool or its components, respectively, and should not be understood as limiting in any way.

[0023] The tool part base advantageously has a wedge-shaped structure comprising at least one or at least two guide surfaces converging in opposite axial directions toward a common wedge peak. The wedge angle of the wedge structure thus specifies the angle of the guide surfaces relative to the axial direction of the tool part. The wedge angle, i.e., the slope of the guide surfaces, is preferably between 5 and 15 degrees, preferably approximately 9 degrees. Based on the axial direction of the tool part base, the wedge peak of the wedge structure is arranged in the axial position that, in the initial position, is assigned to the axial position of the cutting edge, preferably approximately corresponding to the axial position of the cutting edge of the cutting section. This is preferably also the axial position in which, in the initial position of the stripping tool, the insulation jacket of the cable is cut. Once the insulating sheath has been completely or almost completely cut through, and the cutting edges of the opposing tool parts have thus met or at least come closer together, the system of two opposing cutting sections can be considered a main body, upon which radial forces acting opposite one another act. These forces then result in a total force in the axial direction and cause the cutting body, including its cutting sections, to be displaced axially, thereby displacing the cutting body on the guide surface of the wedge structure assigned to it. This ultimately leads to the stripping of the cable. According to one embodiment, the entire surface of the wedge structure can serve as the guide surface. However, it is preferred that only individual, particularly strip-shaped, subareas form the guide surface.

[0024] The cutting body is preferably formed in two pieces, comprising two partial cutting bodies that can be displaced in opposite axial directions when opposing cutting portions of the stripping tool come into contact with each other, or when opposing forces acting on the inclined surfaces of the cutting portions result in an axial force. One of the partial cutting bodies can also be formed to only hold or clamp the cable. Due to the shape of the cutting portions, an axial force acting on the partial cutting body acts in an axial direction that is away from the corresponding other partial cutting body.

[0025] The first cutting body of the cutting body of the tool part can have, for example, a retaining element for fixing the cable to be stripped. Conversely, the second cutting body of the same cutting body or tool part, respectively, has a cutting section which, due to the opposite axial displacement of the two cutting body parts, is positioned at a distance from the retaining element. This allows the insulating sheath to be displaced over a partial section of the cable length. The displacement of the guide surfaces relative to one another during the stripping process can also result in, for example, additional displacement of the tool jaws or the stripping tool as a whole relative to the cable or its surrounding area, in particular in the case of cables whose long ends, facing the free end area, are immovably fixed in the surrounding area, as can be the case, for example, with underground cables.

[0026] Alternatively, two partial cutting bodies of the same tool component can have cutting sections that are displaceable in opposite axial directions. In combination with the aforementioned wedge-shaped structure of the tool component base, it is possible for each partial cutting body, and therefore each cutting section, to also move along the guide surface of the wedge structure, i.e., in particular, in the direction of the descending slope of the wedge structure. This also results in the described cable stripping.

[0027] Furthermore, it is also possible that the opposing tool parts each have a first partial cutting body comprising a cutting portion and a second partial cutting body comprising a retaining element. The cutting portions of the first partial cutting body and the second partial cutting body can thus be positioned diagonally offset from one another. This means that the cutting portion of the first tool part is positioned relative to the retaining element of the second tool part, and the retaining element of the first tool part is positioned relative to the cutting portion of the second tool part. As a result, the cutting portion of the first tool part does not cut against the opposing cutting portion, but actually cuts against the retaining element. The described axial displacement of the mating partial cutting bodies of the first tool part and the second tool part occurs as soon as the cutting portion of the first tool part and the retaining element of the second tool part therefore contact one another or almost contact one another when the opposing tool parts are brought together. The retaining element can also be formed by a cutting portion which is formed to be blunt or rounded or to have a sawtooth profile.

[0028] In one embodiment, the first partial cutting body has a first cutting portion in a front region facing the second partial cutting body, and the second partial cutting body has a second cutting portion in a front region facing the first partial cutting body. This design allows forces acting on the cutting bodies to be symmetrically distributed across the two partial cutting bodies. This advantageously generates forces of equal magnitude in opposite axial directions, causing partial regions of the cable's insulation jacket to the left and right of the cut point to shift in opposite directions relative to the cable core.

[0029] In the case of an axial displacement of the partial cutting bodies away from each other, not only are the cutting bodies additionally separated, but in fact the two cutting portions are also separated, wherein each cutting portion terminates the front side of the corresponding partial cutting body. During the axial displacement, at least one of the cutting portions pushes the insulating sheath in front of it.

[0030] The two partially cut bodies can also be connected to each other by at least one reset element, whereby the reset force of the reset element attempts to move the two partially cut bodies toward each other. The reset element can specifically be a spring element, such as a coil spring or a leaf spring, whose reset force acts in the direction of moving the two partially cut bodies toward each other.

[0031] Resetting element can for example end on the front side of the corresponding part cutting body away from another part cutting body.This force therefore acts on the outside of the cutting body and connects the part cutting body on its whole axial longitudinal extension.Alternatively, resetting element can also be arranged on the tool part base or the tool jaws of the stripping tool.In this case, a pressure spring is recommended, which acts on the cutting body from the outside, that is, acts on the front side of the cutting portion away from the cutting body.In this case, resetting element also can be formed as a spring element.Particularly, a leaf spring is therefore advantageous.

[0032] The reset element ensures that the partial cutting bodies are displaced into an initial position in which, for example, the cutting parts abut against each other or the cutting part and the retaining element abut against each other. A displacement counter to the reset force of the reset element occurs only when the two partial cutting bodies are axially displaced relative to each other following the formation of the incision.

[0033] The cutting body or part of the cutting body of the respective tool part is preferably pivotable relative to the tool jaws about the axial longitudinal extension of the tool jaws. The pivotable arrangement of the cutting body or part of the cutting body on the tool jaws can advantageously be used to enable the cutting section to be pivoted about the insulating sheath of the cable. This improves or supports the cutting result because, at least at the beginning of the cutting process, the cutting movement takes place not only in the radial direction but also in the circumferential direction of the insulating sheath. The pivotability of the cutting body or part of the cutting body can also be used to displace a cutting body or part of the cutting body that is not optimally positioned in the desired receiving position of the tool jaws, if necessary. This preferably takes place during the closing of the tool jaws, during which the opposing tool parts are moved toward each other and, as a result, one or both opposing pivotable cutting bodies or parts of the cutting body are also pivoted into the desired position.

[0034] Furthermore, it can be provided that the cutting body and the partial cutting body are formed conically. The first partial cutting body can taper in particular in an axial direction towards an adjacent second partial cutting body of the same tool part, and the second partial cutting body can taper in an opposite axial direction. According to this design, the partial cutting body is not formed as a semi-cylinder, for example, but is actually conical, whereby its diameter tapers. This conical design provides for the pivoting of the partial cutting body around the longitudinal axis of the tool part. The cutting body or the partial cutting body can be pivoted by 1 to 5 degrees, in particular by approximately 2.5 degrees, respectively. Corresponding to the conical shape of the cutting body or the partial cutting body, respectively, the tool part base is preferably also formed conically on the radially inward side. The conical shapes and sizes of the tool part base and the cutting body correspond to each other, in particular in such a way that in the initial position, they preferably rest completely against each other. However, once the cutting body or part of the cutting body is axially displaced relative to the tool part base, the diameters of the tool part base and the cutting body or part of the cutting body no longer match based on the same cross-sectional plane, so that the tool part base and the cutting body or part of the cutting body only contact each other linearly on their mutually facing faces. The cutting body or the part of the cutting body is particularly preferably aligned in the axial direction relative to the tool part base. The longitudinal axes of the two part cutting bodies in the tool part base also remain parallel to each other.

[0035] In the case of a cutting body having two partial cutting bodies, it can be provided in particular that each partial cutting body can be pivoted by approximately 2.5 degrees. This allows for a corresponding movement of the partial cutting bodies, and therefore of the associated cutting sections and / or retaining elements, during the closing of the tool parts, while the cutting section or sections simultaneously cut through the insulating sheath of the cable. Axial displacement of the cutting body or the partial cutting bodies, respectively, in the axial direction preferably does not yet occur during this phase of the cutting process.

[0036] In particular, it can be provided that the cutting body or the cutting body parts, respectively, have a pretensioning force into the forward pivoted position. This can lead to a more favorable cutting behavior of the cutting portion or portions mentioned above. The tapered tapering of the conical cutting body parts or the cutting body parts, respectively, further ensures that the axes of the cutting body parts remain largely parallel to one another.

[0037] The cutting body of the tool component may also have an end stop for receiving the cable therein. The axial end stop of the cutting body limits the length of the cable that can be inserted between the tool jaws of the stripping tool. The length of the core of the cable exposed by stripping can be determined simultaneously therewith.

[0038] The axial end stop is particularly preferably manually displaceable relative to the tool jaws by the user of the stripping tool. The end stop can be displaced outward, for example, along a guide rail of the tool part base or the cutting body of the tool jaws. Thus, the end stop is mounted on the cutting body, the tool part base, or the tool jaws. In particular, it can be provided, for example, that the cutting body has a guide rail that extends through a portion of the end stop, and the end stop can thus be displaced toward or away from the tool jaws.

[0039] Therefore, a lock which can fix the end stop in the desired position is preferably assigned to the end stop.According to one embodiment, a latching device or a screw can be provided in this respect which will keep the force applied to a partial area of ​​the cutting body, for example on the guide rail.

[0040] Finally, based on the stripping tool, it can also be provided that at least the first tool jaw is linearly displaceable relative to the second tool jaw or is pivotable about a pivot axis. As a result, the tool jaws can generally be closed in different ways. The stripping tool comprises tool jaws that are linearly displaceable relative to each other, thereby forming a group of stripping tools. In this case, for example, the stripping tool is formed so that it has tool jaws that are fixed in position relative to the handle part of the tool body and tool jaws that are linearly displaceable in contrast, whereby the displaceable tool jaws are shifted towards the fixed tool jaws for the stripping process. The second group of stripping tools comprises the following tools, wherein at least one tool jaw, but preferably both tool jaws, are pivotable about a pivot axis. In the case of two tool jaws that are displaceable towards each other, the tool jaws can be pivoted about a common pivot axis or about corresponding individual pivot axes.

[0041] In addition to the stripping tool, a tool part pair for a stripping tool is also proposed, wherein the stripping tool is formed according to the above-mentioned type. The stripping tool thus comprises a tool part pair comprising a first tool part and a second tool part for stripping a cable having a cable core and an insulating sheath, whereby a cutting portion is also provided for acting on the cable during the stripping process, wherein each tool part comprises a cutting body for receiving a partial area of ​​the cable, wherein the cutting body comprises a cutting portion comprising a cutting edge, whereby the cutting edge delimits a free space of the cutting body, in which free space is provided for receiving the cable core, whereby the tool part comprises a tool part base which is received on the tool jaws, whereby the cutting body of the tool part can be displaced in an axial direction orthogonal to the joining direction relative to the tool part base, whereby the tool part base and the cutting body have guide surfaces which are operatively connected to each other and which ensure displacement after overcoming the retaining force, whereby the guide surfaces extend at the same obtuse angle relative to the joining direction, whereby a force applied to the cutting body can be obtained solely by a displacement of the tool jaws in the joining direction, said force resulting in a displacement of the guide surfaces of the cutting body and therefore of the cutting body relative to the guide surfaces of the tool part base, the displacement having a movement component in the axial direction corresponding to the angle.

[0042] Therefore, the tool component pair is designed so that it can function in the manner shown when received in the corresponding stripping tool. This design results in the advantages and features already described above with respect to the stripping tool. The features of the stripping tool relating to the tool component design also apply accordingly to the proposed tool component pair for the stripping tool.

[0043] Finally, a method for stripping a cable having a cable core and an insulating sheath is proposed, wherein the method comprises the following method steps:

[0044] - arranging the cable between two opposing cutting bodies of the first tool part and the second tool part, each cutting body having at least one cutting portion;

[0045] - displacing the first tool part in the joining direction towards the second tool part;

[0046] - cutting an axial partial section of the insulating sheath of the cable using the cutting portion of the first tool part and the cutting portion of the second tool part;

[0047] - displacing the cutting body of the tool part relative to the tool part base of the tool part in an axial direction oriented orthogonally to the joining direction, whereby guide surfaces of the tool part base and the cutting body which are operatively connected to one another and extend at the same obtuse angle relative to the joining direction provide for the displacement of the cutting body after overcoming the holding force, whereby the application of force to the cutting body occurs solely by displacement of the tool jaws in the joining direction, which application of force results in a displacement of the guide surfaces of the cutting body and thus of the cutting body relative to the guide surfaces of the tool part base, the displacement having a movement component in the axial direction corresponding to said angle;

[0048] - Separating an axial partial section of the insulating sheath of the cable by displacement of the cutting body relative to the tool member base.

[0049] The proposed method provides a procedure in at least two steps. The first step involves displacing opposing tool parts toward each other for cutting the insulation jacket of the cable. The tool parts are thereby displaced toward each other until the cutting edges of the opposing cutting sections, or at least partial regions of the opposing cutting sections, contact each other, or at least substantially contact each other. During this first method step, the cutting sections preferably self-lock, resulting in only the insulation jacket being cut, but not yet in any associated axial displacement of the cutting sections and, therefore, the insulation jacket relative to the cable core. The second step of the procedure is triggered by the user further displacing the tool jaws, and therefore also the tool parts of the stripping tool, toward each other. This preferably results in a removal of the motion inhibition, particularly optionally the self-locking effect of the cutting sections, due to the forces acting on the tool parts as a whole. The forces acting in opposite directions on the cutting sections add up to a resulting total force in the axial direction, which then ultimately causes an axial displacement of the cutting body or its partial cutting bodies, respectively. In particular, the two partial cutting bodies are thereby displaced away from each other, i.e., in opposite axial directions, causing the cut end sections of the insulation jacket to be displaced relative to the cable core of the cable.

[0050] The displacement of the cutting body relative to the tool part base occurs by means of a force exerted by the first tool part toward the second tool part, causing at least a partial region of the cutting body of the respective tool part to be pressed against at least one axially inclined guide surface of the wedge-shaped structure. In response to continued application of force, the cutting body, or a partial region of the cutting body, is guided downwardly along the inclined guide surface from the wedge-shaped peak of the wedge-shaped structure and thereby simultaneously displaced in the axial direction until reaching an end position. This also applies if the matching guide surfaces are formed in an adapted conical shape. The end position is determined by the closing of the tool jaws or, alternatively, by a reset element whose reset force intends to shift the cutting body, or a partial region of the cutting body, respectively, back to the initial position, or the reset element connects the two partial cutting bodies of the cutting body to each other and attempts to move them toward each other. The end position is further determined by at least the convergence of the tool parts in which the cutting device is arranged. The end position is further determined by at least the convergence of the tool part base of the first tool part and the tool part base of the second tool part.

[0051] The displacement of the cutting body in the axial direction preferably comprises a displacement of a first partial cutting body and a second partial cutting body of the cutting body in opposite axial directions relative to each other. In particular, a symmetry of the displacement movement of the partial cutting bodies relative to the tool part base of the respective tool part can thereby be achieved. Starting from the cutting point, forces are thus exerted on the insulating sheath in two opposite directions, which simplifies the stripping of the cable. The displacement of the two partial cutting bodies relative to each other can, on the one hand, comprise a displacement of the two cutting portions relative to each other. Alternatively, the displacement of the two partial cutting bodies can comprise removing the first partial cutting body comprising the cutting portion from the second partial cutting body comprising the retaining element.

[0052] For the two partial cutting bodies of the cutting body, it can be provided in particular that each partial cutting body has a cutting portion, whereby a first cutting portion arranged on a front area of ​​the first partial cutting body facing the second partial cutting body separates from a second cutting portion arranged on a front area of ​​the second partial cutting body facing the first partial cutting body. Thus, when two adjacent partial cutting bodies are moved apart from one another, a particularly central and symmetrical separation of the two cutting portions also occurs simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] The following description is based on the accompanying drawings, which represent only exemplary embodiments. Therefore, components that are described based on only one exemplary embodiment and are not replaced with another component due to a particular feature emphasized in another exemplary embodiment are also described as at least potentially usable components for another exemplary embodiment. In the drawings:

[0054] Figure 1shows a perspective view of a stripping tool comprising a pair of tool components arranged in tool jaws, relating to a first embodiment;

[0055] Figure 2 The working head of the stripping tool is shown, which has a Figure 1 an exploded perspective view of a pair of tool components and showing a cable to be cut by the stripping tool in perspective;

[0056] Figure 2a shows a perspective view of the tool jaws;

[0057] Figure 2b Shows the tool components according to Figure 2a A cross-sectional view of line IIb in FIG.

[0058] Figure 2c Shown according to Figure 2 A cross-sectional view of line IIc in FIG.

[0059] Figure 3 shows a perspective view of the tool component pair in a partially closed initial position;

[0060] Figure 4 Shows one of the tool parts according to Figure 3 Stereoscopic image of

[0061] Figure 5 Shown according to Figure 3 A perspective view of the tool part pair in the completely closed end position;

[0062] Figure 6 Shows one of the tool parts according to Figure 5 Stereoscopic image of

[0063] Figure 7 Shown according to Figure 3 A cross-sectional view of the tool component pair taken along line VII in FIG.

[0064] Figure 8 Shown according to Figure 5 A cross-sectional view of the tool component pair taken along line VIII in FIG.

[0065] Figure 9 shows a perspective view of a stripping tool including a pair of tool components arranged in tool jaws, relating to another embodiment;

[0066] Figure 10 shows a perspective view of one of the tool components comprising a tool component base and a cutting body for a cable;

[0067] Figure 11 Shown according to Figure 9 a perspective view of a pair of tool parts;

[0068] Figure 12 Shown according to Figure 11 A perspective view of the tool component pair in a partially closed initial position;

[0069] Figure 13 Shows one of the tool parts according to Figure 12 A perspective view of the initial position shown with the cables laid therein;

[0070] Figure 14 Shown according to Figure 11 A perspective view of the tool part pair in the completely closed end position;

[0071] Figure 14a Shown according to Figure 14 A cross-sectional view of line XIVa in FIG;

[0072] Figure 15 Shown according to Figure 14 A sectional view along line XV in FIG. 1 and an enlarged view of a portion indicated by a circle therein;

[0073] Figure 16 shows a sectional view of a tool part pair according to another embodiment, which relates to the closed end position and an enlarged view of the detail shown in the circle therein;

[0074] Figure 17 shows a perspective view of a tool component according to another possible embodiment;

[0075] Figure 18 Shown for Figure 17 a perspective view of the journal of the tool component shown;

[0076] Figure 19 Shown Figure 17 An enlarged stereogram of region XIX in FIG.

[0077] Figure 20 Shown according to Figure 17 A three-dimensional cross-sectional view of line XX in FIG. DETAILED DESCRIPTION

[0078] First reference Figure 1 What is shown and described is a stripping tool 1 which is formed here in the shape of a rod-shaped drive device part 10 with a handle area 23 and a working head 24. Alternatively, the stripping tool 1 can also be formed as a substantially gun-shaped drive device part, for example.

[0079] Drive components or stripping tools of this type are known, for example, from WO 2008 / 138987 A2 (US Pat. No. 8,056,473 B2) or WO 2003 / 084719 A2 (US Pat. No. 7,254,982 B2). The stripping tool 1 may alternatively include an electric spindle drive. Such a hand tool is known, for example, from WO 2014 / 009363 A1 (US Pat. No. 1,046,847 B2). The contents of these international or US publications are hereby incorporated in their entirety into the disclosure of the solutions described herein, and are also intended to be incorporated into the claims of this document.

[0080] Two tool jaws 2, 3 that can be moved linearly toward each other are arranged in the working head 24, whereby during operation of the stripping tool 1, the movable first tool jaw 2 can preferably be displaced linearly onto the preferably stationary second tool jaw 3. The drive is preferably electrohydraulic, for which purpose an energy accumulator 25 can further be provided, for example, on the end face of the handle region 23, which energy accumulator 25 can also be used to electrically supply, for example, a hydraulic medium pump (not shown) and a control unit (not shown).

[0081] The tool jaws 2, 3 are carriers for pairs of tool parts 4, 5, which are preferably held in an exchangeable manner in the tool jaws 2, 3, with a first tool part 4 and a second tool part 5. A screw-type or latching fastening of the tool parts 4, 5 can be provided in particular in the respective tool jaws 2, 3, in particular for simplified removal of the tool parts 4, 5 from the tool jaws 2, 3 or for replacing the tool parts 4, 5.

[0082] The tool parts 4 , 5 can be, and likewise preferably are, identically formed, so that either tool part 4 , 5 can be arranged on either tool jaw 2 , 3 .

[0083] The tool parts 4, 5 of the embodiment shown in the following figures are formed for stripping a cable 8. Typically, such a cable 8 has a cable core 6, which preferably comprises a plurality of strands, and an insulating sheath 7 surrounding the cable core 6. In order to be able to establish an electrically conductive connection of the cable 8, it is first necessary to expose the cable core 6 in a corresponding section of the cable 8 by removing an axial section of the insulating sheath 7.

[0084] In use, according to a preferred embodiment, the tool parts 4 , 5 completely remove the end-side insulation sections of the insulation sheath 7 by notching and / or cutting through the insulation sheath 7 at designated locations of the cable 8 surrounded by the tool parts 4 , 5 .

[0085] Each tool part 4, 5 comprises a cutting body 9 and a tool part base 12, in which the cutting body 9 is held. The tool part base 12 and the cutting body 9 are operably connected to each other. Each cutting body 9 is formed by a pair of semi-cylindrical partial cutting bodies 13, 14 held in the tool part base 12. The two partial cutting bodies 13, 14 are collectively referred to as cutting bodies 9. Each tool part base is mounted relative to the tool jaws, in particular in a fixed manner, or is formed integrally with the tool jaws. The two partial cutting bodies 13, 14 can be displaced relative to it in an axial direction a. The cutting body 9 defines a receiving area, which is formed when viewed in a cross section transverse to the longitudinal extension of the cable 8 guided between the tool parts 4, 5. Each cutting body 9 is connected to one of the tool parts 4, 5 and partially surrounds the inserted cable 8, for example substantially semicircularly surrounds the inserted cable 8. The two cutting bodies 9 thus preferably complement each other to form an overall substantially cylindrical housing comprising a free space 26 for receiving the cable 8 therein in the closed state of the tool parts 4, 5. Receiving means, as a rule, that the cable is partially cut once it has been received in the free space, of course depending on the diameter of the cable.

[0086] As from Figure 2 It can be further seen at the outset that in the case of this exemplary embodiment each semi-cylindrical partially cutting body 13, 14 has a cutting portion 16, 17 comprising a cutting edge 11. Based on the sectional view, the cutting edge 11 is likewise formed semi-circular and delimits a free space 26, in which provision is made for receiving the cable core 6 of the cable 8. The free space 26 therefore essentially has a diameter which corresponds to the diameter of the cable core 6 and is slightly larger, for example by 1 mm or 2 mm or fractions thereof. The cutting portions 16, 17 are preferably formed integrally on the respective partially cutting body 13, 14 and are also preferably formed from the same material as the cutting bodies 13, 14. Based on the longitudinal extension of the cutting body 9, a plurality of cutting portions 16, 17 can be provided one after another in one partially cutting body 13, 14. This illustration should not be understood as being restrictive in this respect. With respect to the relative cutting portions 16, 17 Figure 3 and Figure 4 In the partially closed initial position of the tool parts 4, 5 shown in FIG, the cutting edges 11 pointing radially inwards and correspondingly facing each other leave a radially inner free space 26, the diameter of which is adapted to the diameter of the cable core 6 of the cable 8 to be stripped. In the later completely closed state of the tool parts 4, 5, the cutting portions 16, 17 can thus respectively incise or completely cut through the insulating sheath 7 to a certain depth in which the cutting edges 11 rest against the circumference of the cable core 6, preferably without damaging the cable core 6 or the individual strands extending therein, respectively.

[0087] In particular, as from Figure 3 and Figure 4 and Figure 5 and Figure 6 As can be seen from the comparison, the end region R of the respective partial cutting bodies 13, 14 protrudes beyond the tool part base 12 based on the circumferential direction. Figure 3 and Figure 4 The initial position after the tool parts 4, 5 are brought together is shown, which initial position is achieved until contact is made, in this case a cut into the insulating sheath 7, Figure 5 and Figure 6 The tool parts 4, 5 are shown in the closed end position, with the end regions R of the respective partial cutting bodies 13, 14 protruding beyond the tool part base 12 in the circumferential direction. When the tool parts 4, 5 are closed, these end regions R of the respective tool part base 12 of the tool parts 4, 5, which protrude in the direction of the respective relative tool parts 4, 5, abut against each other and are actuated by an externally applied actuation force (e.g. Figure 4 and Figure 6 As can be seen in the comparison of ) on the one hand in the axial direction a and on the other hand in the circumferential direction while providing pivotability, and thus also achieves a displacement of the stripped partial section of the insulating sheath 7 along the axial direction a.

[0088] In detail and therefore also with reference to Figure 11 , the partially cut bodies 13, 14 have contact surfaces 31, 32, 33 and 34. In the case of partially cut bodies 13, 14 preferably formed integrally in a spherical cap-shaped manner, the contact surfaces 31, 32, 33 and 34 are formed on surfaces which, in the closed position, face the opposing partially cut bodies 13, 14 and extend in the axial direction. Figure 3 In the case of the cut into the insulating sheath 7, these contact surfaces 31, 32, 33, 34 abut against each other after the cut is completed and are then displaced together in the axial direction a to the position according to the cut due to the operatively connected guide surfaces 21, 44 formed on the tool part base 12 and on the partial cutting bodies 13, 14. Figure 5 or Figure 6 Or there are Figure 15 The guide surface 44 is on the cutting body 9 and is a surface corresponding to the guide surface 21 on the tool base 12, see for example Figure 2 The guide surface 21 and the guide surface 44 extend at the same obtuse angle relative to the joining direction. The guide surfaces 21 and 24 are also processed into inclined surfaces.

[0089] Each cutting body 9 of the opposing tool parts 4, 5 has here, in an exemplary manner, two partial cutting bodies 13, 14, each comprising a cutting portion 16, 17 (see Figure 7 and Figure 8 ). The cutting edges 11 of the cutting portions 16, 17 have a cutting acute angle β of, for example, about 10 degrees to about 18 degrees, more preferably about 15 degrees, see Figure 13 The partially cut bodies 13, 14 can be separated from one another in the region of the cutouts 16, 17. The cutouts 16, 17 are in each case formed on a front region 15 of the partially cut bodies 13, 14 facing towards the adjacent partially cut bodies 13, 14.

[0090] In addition to the cutting body 9 of each tool part 4, 5, which includes a partial cutting body 13, 14 forming a cutting portion 16, 17, each tool part 4, 5 also has a tool part base 12. The cutting body 9, in particular its partial cutting body 13, 14, can be displaced in the axial direction a relative to the tool part axis. Figure 6 and Figure 8 As shown, the first part of the cutting body 13 can be respectively Figure 4 or Figure 7 Starting from the initial position of the first cutting body 13, the first cutting body 14 can be displaced in the axial direction -a, while the second cutting body 14 can be displaced in the opposite axial direction +a. For this purpose, the cutting bodies 13, 14 are mounted on the tool part base 12 in a linearly displaceable manner. However, alternatively, even if this embodiment is not preferred, the cutting bodies 13, 14 can be mounted directly on the tool jaws 2, 3.

[0091] Facing inwards, in the direction of the free space 26, the tool part base 12 has a wedge-shaped structure 19 comprising a wedge-shaped peak 20 and a flat guide surface 21 sloping downwards from the wedge-shaped peak 20, the guide surface 21 making a wedge angle α with the axial direction a (see Figure 2c ), as in Figure 7 and 8 The wedge angle α is preferably between 5 and 15 degrees, in particular approximately 9 degrees. The guide surface 21 of the tool part base 12 thus forms a web-shaped partial area of ​​the wedge-shaped structure 19 of the tool part base 12, as shown in FIG. Figure 2cAs shown. In practice, guidance is only provided for a single web-shaped partial area oriented in the axial direction a. However, guiding the partial cutting bodies 13, 14 over the entire surface of the wedge-shaped structure 19 is generally also possible, even if such an embodiment is not preferred. The web-shaped partial area in the radially outer region of the wedge-shaped structure 19 or the tool part base 12, respectively, provides for a direct linear downward dissipation of the force, i.e., into the respective tool jaws 2, 3, rather than initially dissipating the force in an arc-like manner into the lower area of ​​the wedge-shaped structure 19 facing the tool jaws 2, 3. In the case of this exemplary embodiment, the guide surface 21 is arranged mirror-symmetrically with respect to the cross-section of the wedge-shaped structure 19, in which the common wedge peak 20 is formed.

[0092] The respective tool part bases 12 have contact surfaces 35, 36, 37, 38. When the tool jaws 2, 3 are essentially completely closed, the tool part bases 12 rest against one another via these contact surfaces 35, 36, 37, 38.

[0093] An axial end stop 22 is also provided, which limits the length of the cable 8 that can be inserted into the stripping tool 1. The axial end stop 22 is provided on the second partial cutting body 14 only by way of example. The axial end stop 22 can be displaced, for example, along a guide rail 27 that is connected to the partial cutting body 14. The guide rail 27 passes through the end stop 22. The end stop 22 can be fixed to the guide rail 27 in a defined position by means of a lock 28, for example a screw. In an alternative embodiment, the end stop 22 is not part of the cutting body 9, but is, for example, part of the tool jaws 2.

[0094] Attachment Figures 9 to 15 Another possible embodiment of a stripping tool 1 is disclosed. The stripping tool 1 has a working head 24 comprising two tool jaws 2, 3 that are pivotable relative to one another. Each tool jaw 2, 3 can pivot relative to the other tool jaw 2, 3 about a separate pivot axis. This can also be the same pivot axis.

[0095] according to Figures 9 to 15 The stripping tool 1 can also be formed with a handle area 23, which can be formed in a rod-like manner as shown here, or alternatively can have a gun-like shape, for example. The handle area 23 has an actuating element 29, during which the user can trigger the stripping process of the stripping tool 1. The user acts on the tool jaws 2, 3 by actuating the actuating element 29 to close the tool jaws, that is, to shift them toward each other. In addition, the closing of the tool jaws 2, 3 can be supported electrically and / or electrohydraulically.

[0096] like Figure 10 and Figure 11As shown in more detail in FIG, each of the tool parts 4, 5 has a tool part base 12 and a cutting body 9, which includes two partial cutting bodies 13, 14, which can be displaced in the axial direction a relative to the tool part base 12 and are connected to each other via a reset element 18. The reset element 18 is formed here in an exemplary manner as a tension spring, the reset force of which acts on the side-by-side position of the two partial cutting bodies 13, 14. This side-by-side position is, for example, Figure 11 The tool component base 12 has a wedge-shaped structure 19 on the inner side, the wedge-shaped structure 19 includes a wedge-shaped peak 20 and two conical guide surfaces 21, the two conical guide surfaces 21 are inclined at a wedge angle α starting from the wedge-shaped peak 20, and the guide surfaces 21 are inclined in opposite axial directions +a and -a. Figures 1 to 8 In contrast to the embodiment of FIG. 1 , the guide surface 21 is not flat, but rather curved, in particular semicircularly curved based on the cross section. The inner diameter of the tool part base 12 widens outwards due to the conical formation.

[0097] If especially from Figure 10 and Figure 11 It can further be seen that the two cutting body sections 13, 14 of the cutting body 9 are also formed conically. The outer diameter of the cutting body sections 13, 14 varies in the axial direction a so as to correspond in shape to the guide surface 21 of the wedge-shaped structure 19 of the tool part base 12, with the narrower end of the cone being positioned in the region of the wedge-shaped peak 20 of the wedge-shaped structure 19. Starting from the axial center of the entire cutting body 9, the two cutting body sections 13, 14 thus widen outward (relative to the surrounding area of ​​the stripping tool 1). Due to the corresponding conical shape of the tool part base 12 and the cutting body sections 13, 14, in addition to axial displaceability, the latter can also be pivoted about the longitudinal extension of the cutting body sections 13, 14 and, therefore, preferably also about the cable 8 to be stripped. Each cutting body section 13, 14 can, for example, pivot approximately 2.5 degrees, thus 5 degrees relative to one another. When the tool parts 4, 5 are brought together, the conical shape also provides for the centering of the partial cutting bodies 13, 14 relative to the tool part base 12 during the displacement of the partial cutting bodies 13, 14, because the diameters of the partial cutting bodies 13, 14 and the guide surface 21 no longer match, i.e. are different based on one and the same cross-sectional plane. This results in a line contact between the tool part base 12 and the partial cutting bodies 13, 14. This can be seen in particular from the Figure 14a It can be concluded.

[0098] Regarding the different designs compared to the first embodiment of the stripping tool 1, Figures 1 to 8 In the embodiment, it is also possible to provide information about Figures 9 to 15The described formations of the tool parts 4 , 5 . Different designs, in particular conical shapes, are in particular not limited to tool jaws 3 , 4 that can be pivoted relative to one another.

[0099] As according to Figures 1 to 8 As in the embodiment of Figures 9 to 15 The stripping tool 1 may also have two opposing cutting portions 16, 17, the cutting depth of the cutting portions 16, 17 being equal to or slightly less than a measure of the radial thickness of the insulating jacket 7 of the cable 8. For example, the cutting depth may correspond to approximately 0.8 to 0.95 times the radial thickness of the insulating jacket 7, so that the cutting edge 11 does not engage the cable core 6 when performing the cutting process, and preferably, the cutting depth may correspond to a thin web that can be easily separated by tearing and is therefore held between the cable core 6 and the cutting edge 11, adjacent to the cable core 6.

[0100] The cable 8 may include a thin wire core 6 comprising a plurality of individual strands. Alternatively, the cable 8 may be formed as a flat cable, in which case the individual strands are in the form of thin flat sheets. The insulating sheath 7 may be made of rubber, polyethylene, polyvinyl chloride, or other materials.

[0101] Figure 16 An alternative embodiment of the tool component pair 4, 5 is shown. Figure 15 Or there are Figure 7 and Figure 8 In contrast to the embodiment of the present invention, the tool part 4, 5 has two partial cutting bodies 13, 14, each of which does not have a cutting portion 16, 17. Instead, only one of the partial cutting bodies 13, 14 has a cutting portion, such as the cutting portion 17, while the other partial cutting body 13, 14 has a holding element 30. Figure 16 In the embodiment shown by way of example in FIG, the first partial cutting body 13 has a retaining element 30, and the second partial cutting body 14 has a cutting portion 17. This proposed configuration is identical for both opposing tool parts 4, 5. According to this embodiment, the first partial cutting bodies 13 of the first and second tool parts 4, 5 are formed to secure the cable 8 to be stripped by means of corresponding retaining elements 30, while the second partial cutting bodies 14 of the first and second tool parts 4, 5 cut the insulating jacket 7 of the cable 8. The retaining elements 30 preferably engage only with the outer surface of the cable 8 and, therefore, with the insulating jacket 7. The retaining elements 30 preferably do not engage with the insulating jacket 7 or engage only with a portion of the thickness of the insulating jacket 7.

[0102] Another embodiment may provide that the retaining element 30 and the cutting portion 17 are not positioned directly opposite each other based on the same radial cross-section of the partial cutting bodies 13 and 14, but that the retaining element 30 and the cutting portion 17 are arranged diagonally, that is, the retaining element 30 of the first tool part 4 is positioned opposite to the cutting portion 17 of the second tool part 5, and the retaining element 30 of the second tool part 5 is positioned opposite to the cutting portion 17 of the first tool part 4.

[0103] Reference Attachment Figures 17 to 20 An embodiment is shown which is a possible design even independently of the specifically shown embodiments of all tool parts 4, 5 described here. This embodiment relates to another option for obtaining the desired holding force which is required when performing the cutting process, from cutting into the insulating sheath 7 to the axial displacement of the partial cutting body 13, 14. As can be seen, the holding force is obtained by means of a journal 39 which is guided in the partial cutting body 13, 14 and is under the spring force of a spring element 43 and which can cooperate with a stop 40 formed on the tool part base 12 until, for example, the stop is stopped by a spring element 43. Figure 3 and Figure 4 Therefore, the journal 39 has a protrusion 41, which abuts against the stopper 40, as shown in FIG. Figure 19 As shown, when the journal 39 is lowered, the projection 41 is displaced below the level of the stop 40 and subsequently displaced below the stop 40 in the guide groove 42 of the tool part base 12 in the axial direction a. The journal 39 is lowered by, for example, Figure 3 and 4 The position shown begins to be triggered by further closing the tool jaws 3, 4 or the tool parts 4, 5. By further closing the tool parts 4, 5, the restoring force of the spring element 43 associated with the journal 39 is overcome, and a corresponding displacement of the cutting body parts 13, 14 relative to the tool part base 12 is achieved. This is essentially due to the generation of a retaining force caused by the form-fit connection.

[0104] The mode of operation of the stripping tool 1 shown will be described in more detail below in conjunction with a method for stripping a cable 8 inserted into the stripping tool 1 .

[0105] The user initially places the cable 8 to be stripped between the tool jaws 2, 3 of the working head 24 of the stripping tool 1. The user thereby preferably places the cable 8 with the free end region on the end stop 22, which then defines the end section of the cable 8, on which the insulating sheath 7 is removed. The user then actuates the stripping tool 1 via the actuating element 29 and the hydraulic medium pump of the stripping tool 1. A displacement of a punch, not shown in greater detail, can be caused within the stripping tool 1, which punch acts according to Figure 1The displaceable first tool jaw 2 or according to Figure 9 The tool jaws 2, 3 and the tool parts 4, 5 are closed, and an axial partial section of the insulating jacket 7 of the cable 8 is cut using the corresponding cutting portion 16, 17. As long as the cutting portion 16, 17 is still in contact with the insulating jacket 7, frictional forces act on the cutting portion 16, 17, which inhibits the movement of the axially displaced partial cutting bodies 13, 14. When the user further displaces the tool jaws 2, 3, and therefore the tool parts 4, 5, closer together, the movement inhibition is preferably eliminated, particularly, optionally, the self-locking effect of the cutting portions 16, 17, due to the forces then acting on the tool parts 4, 5 in total. As a result, the forces acting in opposite directions on the inclined surfaces of the cutting portions 16, 17 add up to a resulting total force in the axial direction a. This results in an axial displacement of the partial cutting bodies 13, 14. This in turn results in a severing or at least incision of the insulating sheath 7, respectively, whereby the cutting edges 11 of the cutting portions 16, 17 have not yet contacted the cable core 6 and are therefore still spaced a very small distance from the cable core 6. Given the different possible cables, it cannot be excluded that in some cases the cutting edges may contact the cable core. Due to the axial displacement of the parts of the cutting bodies 13, 14, the insulating sheath 7 is ultimately torn apart, and the torn end region of the insulating sheath 7 is displaced relative to the cable core 6.

[0106] The cutting edge 11 has a circumferential edge region at its end. Preferably, during the cutting process, at least the edge regions of the cutting edges 11 of the cutting sections 16, 17 contact one another, and the opposing cutting sections 16, 17 act as a single body, with forces acting on this single body from opposite directions. These forces add up to a total force acting in the axial direction a (or +a and -a, respectively). The magnitude of the resulting force is, for example, between 10% and 20% of the applied force of the stripping tool. The movement inhibition of the cutting sections 16, 17, particularly the optional self-locking, is eliminated, and the two partial cutting bodies 13, 14 of the cutting body 9 are thereby displaced relative to the respective tool part base 12, namely, in each case along the inclined guide surface 21 (web-shaped partial region) of the wedge-shaped structure 19. For this purpose, the cutting sections 16, 17 of the tool parts 4, 5 can be separated from one another in the region of the cutting edge 11. In the partially closed initial position of the tool jaws 2 , 3 according to a given embodiment, the cutting edge 11 is preferably located above the wedge peak 20 of the wedge structure 19 , i.e. the wedge peak 20 and the cutting edge 11 are preferably positioned in one and the same cross-sectional plane of the tool parts 4 , 5 .

[0107] Due to the continued application of force by the tool jaws 2, 3, the two partial cutting bodies 13, 14 are pushed apart along the guide surface 21 of the wedge-shaped structure 19, whereby the equally separated cutting portions 16, 17 achieve a displacement of the severed or nearly severed partial section of the insulating jacket 7 relative to the cable core 6. This results in a stripped partial section of the cable 8. Subsequently, the user can particularly easily strip the partial area of ​​the insulating jacket 7 that has been separated at the end face and abuts against the end stop 22 from the cable core 6, for example by pulling on the remaining cable 8.

[0108] The tool part is preferably designed to cut in particular 25 mm 2 , 300mm 2 In practice, the proposed stripping tool has proven itself, for example, for cables whose core diameter is approximately 9 mm to 11 mm and whose insulating sheath has an outer diameter of approximately 13 mm to 19 mm. The cutting edge of the cutting portion is preferably formed in a semicircular shape, which can limit a free space with a diameter of, for example, 12 mm. In particular, an angle of approximately 5 degrees to 20 degrees has proven to be advantageous for the cutting portion. However, the above information is to be understood only as an example, in order to describe the approximate size of the stripping tool or its components, respectively, and should not be understood as limiting in any way.

[0109] Figure 9 The stripping tool 1 shown in FIG. 1 , which includes two tool jaws 2, 3 that can be pivoted toward each other, operates in a similar manner. During actuation of the actuating element 29, the tool jaws 2, 3, on which the tool parts 4, 5 are arranged, are pivoted toward each other and, preferably in at least two operating steps, initially cut a partial section of the insulating jacket 7 of the cable 8. Subsequently, under continued application of force, the axial partial section of the insulating jacket 7 is separated by axial displacement of the opposing cutting body 9 or its partial cutting body 13, 14 relative to the tool part base 12 of the respective tool part 4, 5. Each cutting body 9 has the shape of two semi-conical shapes positioned side by side with a narrower front side. The wedge-shaped peak 20 of the wedge-shaped structure 19 of the tool part base 12 is located in the transition region between the two semi-conical shapes. Two semi-conical guide surfaces 21, each inclined in opposite axial directions +a and −a, originate from the wedge peak 20. The two partial cutting bodies 13, 14 are connected to each other by a restoring element 18, whereby the restoring force of the restoring element 18 presses the cutting parts 16, 17 against each other. Figure 13As shown. This relates to the partially closed initial position of the tool jaws 2, 3 of the stripping tool 1, in which case the axial displacement of the partial cutting bodies 13, 14 in the opposite axial direction a has not yet been triggered. The insulating sheath 7 of the cable 8 is severed or almost severed in this state, but has not yet been displaced relative to the cable core 6. Only when the tool jaws 2, 3 exert further force does the movement inhibition of the opposing cutting parts 16, 17 be eliminated, whereby the partial cutting bodies 13, 14 are displaced away from each other along the inclined guide surface 21 of the tool part base 12 against the restoring force of the restoring element 18 until a force is generated. Figure 14 and 15 (or Figure 16 ) shown in the end position.

[0110] In separate comparison Figure 11 The initial position of the tool parts 4, 5 shown in Figure 14 or Figure 15 In the case of the end position of the tool parts 4, 5 shown in FIG, the partial cutting bodies 13, 14 (based on the radial direction) first protrude beyond the tool part base 12, in particular beyond its contact surfaces 35, 36, 37, 38, in the initial position. When the tool jaws 2, 3 are closed, the tool parts 4, 5 first contact each other at the facing contact surfaces 31, 32, 33, 34 of the partial cutting bodies 13, 14. This can then preferably also enable the displacement of the journal 39, which is, for example, Figures 17 to 20 During the displacement until the contact surfaces 31, 32, 33, 34 meet one another, the insulating sheath 7 is cut into. As the tool parts 4, 5 are brought together further, the parts of the cutting bodies 13, 14 are moved axially outward due to the guide surfaces until the tool parts 4, 5 come into contact with one another at the contact surfaces 35, 36, 37, 38. After this, further displacement in the direction of closing is no longer possible.

[0111] During the movement process starting from the mutual contact of the contact surfaces 31, 32, 33, 34, the partial cutting bodies 13, 14 are displaced in the axial direction a. In particular, the slope of the wedge-shaped structure 19, defined by the wedge angle α, also determines the displacement of the partial cutting bodies 13, 14 in the axial direction a, and therefore also determines the total amount of the stripped partial sections of the cable 8.

[0112] Due to the conical shape of the partial cutting bodies 13, 14 and the correspondingly shaped tool part base 12, it is possible that the partial cutting bodies 13, 14 are not only linearly displaceable in the axial direction a, but can also be pivoted about a longitudinal axis oriented substantially parallel to the axial direction a. This is advantageous in particular in the case of a stripping tool 1 comprising pivotable tool jaws 2, 3.

[0113] When the stripping tool 1 is opened again after stripping of the cable 8, the partial cutting bodies 13, 14 are automatically guided against each other by means of the restoring force of the restoring element 18. No additional manual movement is required by the user.

[0114] Although the method is described here with respect to individual steps that can optionally be performed or triggered by the user, the method can be run continuously in the direction of closing the tool parts 4, 5 by means of the tool jaws 2, 3, and in particular can also be run automatically after the first triggering until the end of the stripping process. In practice, the two method steps are distinguished between the process of first cutting into the insulation sheath and then moving one or more separated parts of the insulation sheath 7, preferably without separation. The observer only notices the axial displacement of the cutting parts 16, 17, whereby the incision into the insulation sheath 7 has occurred.

[0115] The key point of the stripping tool is that the tool 1 part base 12 and the cutting body 9 have guide surfaces 44, which are operably connected to each other and ensure displacement after overcoming the retaining force, whereby the guide surfaces 44 extend at the same obtuse angle relative to the joining direction r, whereby it is possible to obtain a force on the cutting body 9 only by displacing the tool jaws 2, 3 in the joining direction r, which force causes a displacement of the guide surface 44 of the cutting body 9 and therefore the cutting body 9 relative to the guide surface 44 of the base 12 of the tool parts 4, 5, which displacement has a movement component in the axial direction a corresponding to the said angle.

[0116] The holding force can be provided in various ways. It can be achieved by a corresponding setting of the friction force, but also by a form-fit connection.

[0117] The proposed design of the stripping tool 1 produces advantageous cutting and stripping results on the cable 8. The stripping tool 1 not only provides for a simple-to-handle cut of the insulating jacket 7 of the cable 8, but also allows for the displacement or removal of the insulating section 45 from the core of the cable 8. To this end, the tool parts 4, 5 have a tool part base 12, which is mounted relative to the tool jaws, in particular fixedly, or formed integrally with the tool jaws, and a cutting body 9, which is displaceable relative to the tool part base 12. The cutting body 9 can be displaced along an inclined guide surface in the axial direction of the tool parts 4, 5, in the direction of the longitudinal extension of the cable 8 arranged between the opposing tool parts 4, 5.

[0118] In addition to the axial displaceability of the cutting body 9, the tool parts 4, 5 themselves and / or the cutting body 9 can preferably be pivoted relative to the tool jaws or the tool part base 12, respectively, about a longitudinal axis corresponding to the axial direction. The pivotability can be provided about a relatively small pivot angle, preferably between approximately 1 and 5 degrees. Independently of or in addition to this, the tool part base 12 can, in particular, have a clearance with the tool jaws in order to be able to dissipate the forces introduced into the cable 8 to be cut via the tool jaws during the cutting process, i.e., so that the cutting portions of the opposing tool parts 4, 5 do not tilt or block each other.

[0119] The stripping tool 1, using tool parts 4 and 5 formed in this manner, can cut the insulating jacket 7 and displace the insulating jacket 7 relative to the cable core 6 in two consecutive steps. Displacement of the insulating jacket 7 preferably occurs only after a retaining force has been overcome. The retaining force does not yet prevent movement between the operatively connected guide surfaces 44. The retaining force can be achieved by establishing a frictional force between the cutting body 9 and the insulating jacket 7. As described above, this retaining force can also be achieved through a form-fit connection. As long as the cutting portion is only in contact with the insulating jacket 7 of the cable 8 but not yet in contact with the opposing cutting portion of the tool part 4 or 5, only the frictional force between the cutting portion and the insulating jacket 7 acts on the cutting portion. This preferably creates a self-locking interlocking of the cutting portion; in this case, the cutting body 9 does not yet displace axially relative to the tool part base 12. Only when the opposing cutting portions of the stripping tool 1 are in contact or nearly in contact in the second step is an axial force generated, which displaces the cutting body 9 along the guide surface relative to the tool part base 12.

[0120] This results in the end section of the cut of the insulating sheath 7 being displaced relative to the cable 8 core, which end section is the insulating section 45, so that the end section can be removed from the cable 8 core in terms of manipulation. Closing the tool jaws 2, 3 enables the cut of the insulating sheath 7 and the displacement of the insulating sheath 7 relative to the cable 8 core.

[0121] When the opposing cuts are in contact with one another or with one another except for a millimeter or a few millimeters (or fractions thereof), i.e. when the insulating sheath 7 is completely or almost severed, the system of opposing cuts can be considered as a single body on which two forces acting opposite to one another act. The axial force is generated by opposing forces acting substantially transversely to the longitudinal extension of the cable 8.

[0122] The previously self-stabilizing state of the cutting section is canceled, and the cutting body 9 is displaced relative to the tool part base 12 of the tool part 4. The resulting axial force is, for example, between 10% and 20% of the applied force of the stripping tool 1. Even with relatively large cable 8 cross-sections, this is sufficient to displace the insulating sheath 7 relative to the cable core 8, if necessary made of a relatively hard material.

[0123] Due to the axial displacement, the end section of the insulating sheath 7 as the end-side cutout of the insulating section 45 can be separated from the remaining insulating sheath 7, even if the end section has not yet been completely cut through. The force generated in the axial direction can also optionally produce the still required tearing.

[0124] Since the insulating sheath 7 does not have to be completely cut through before the cutting body 9 is displaced relative to the base 12 of the tool part 4 , 5 , a certain distance between the cutting portion and the cable 8 core can be maintained, which prevents the strands of the cable 8 core from being cut.

[0125] The principles of the stripping tool 1 described above can be applied to cables 8 of varying outer diameters. Furthermore, the stripping tool 1 is also suitable for cables 8 having multiple insulating sheaths 7. The insulating material itself can be softer or harder, for example made of rubber, PVC, PE, etc. The cable core 8 of the cable 8 can be monolithic or comprised of several strands. The shape of the cutting portion can also be adapted to accommodate different cross-sectional shapes of the cable 8, such as flat cables 8, segmented cables 8, or cables 8 comprising multiple individually insulated wires.

[0126] The tool parts 4, 5 are preferably designed to cut, in particular, 25 mm 2 , 300mm 2 In practice, the proposed stripping tool 1 has proven itself, for example, in cables 8 having a core diameter of approximately 9 mm to 11 mm and an outer diameter of the insulating sheath 7 of approximately 13 mm to 19 mm. The cutting edge of the cutting portion is preferably formed in a semicircular shape, which can limit a free space having a diameter of, for example, 12 mm. An angle of approximately 5 to 20 degrees has proven to be advantageous for the cutting portion.

[0127] However, the above information is to be understood only in an exemplary manner in order to describe the approximate dimensions of the stripping tool 1 or its components, respectively, and should not be understood as being limiting in any way.

[0128] The tool part base 12 advantageously has a wedge-shaped structure comprising at least one guide surface or at least two guide surfaces 44 that converge in opposite axial directions towards a common wedge peak. The wedge angle of the wedge structure thus specifies the angle of the guide surface 44 relative to the axial direction of the tool parts 4, 5. The wedge angle, i.e. the slope of the guide surface 44, is preferably between 5 and 15 degrees, preferably approximately 9 degrees. Based on the axial direction of the tool part base 12, the wedge peak of the wedge structure is arranged in the following axial position, which in the initial position is assigned to the axial position of the cutting edge, preferably approximately corresponding to the axial position of the cutting edge of the cutting portion. This is then preferably also the axial position in which, in the initial position of the stripping tool 1, the cutting of the insulating sheath 7 of the cable 8 takes place. Once the insulating sheath 7 has been completely or almost completely cut through, and the cutting edges of the opposing tool parts 4, 5 have thus met or at least come closer to one another, the system of two opposing cutting portions can be considered a body, on which forces act in radial directions relative to one another. These forces then result in a total force in the axial direction and cause the cutting body 9, including its cutting portion, to be displaced in the axial direction, thereby displacing the cutting body 9 on the guide surface of the wedge structure assigned to it. This then ultimately causes the cable 8 to be stripped. According to one embodiment, the entire surface of the wedge structure can serve as the guide surface. However, it is preferred that only individual, in particular strip-shaped, subareas form the guide surface.

[0129] The cutting body 9 is preferably formed in two pieces, comprising two partial cutting bodies that can be displaced in opposite axial directions when the opposing cutting portions of the stripping tool 1 come into contact with each other, or when opposing forces acting on the inclined surfaces of the cutting portions result in an axial force. One of the partial cutting bodies can also be formed to only hold or clamp the cable 8. Due to the shape of the cutting portion, the axial force acting on the partial cutting body 9 acts in the axial direction that is away from the corresponding other partial cutting body 9.

[0130] The first cutting body 9 of the cutting body 9 of the tool part 4, 5 can have, for example, a retaining element for fixing the cable 8 to be stripped. In contrast, the same cutting body 9 or the second cutting body 9 of the tool part 4, 5, respectively, has a cutting section which, due to the opposite axial displacement of the two partial cutting bodies, places itself at a certain distance from the retaining element. This results in a displacement of the insulating sheath 7 over a partial section of the length of the cable 8, which is typically the insulating section 45. During the stripping process, the displacement of the guide surfaces 44 relative to one another can also result in, for example, an additional displacement of the tool jaws or the stripping tool 1 as a whole, respectively, relative to the cable 8 or its surrounding area, in particular in the case of a cable 8 whose long end facing the free end area is immovably fixed in the surrounding area, as can be the case, for example, in the case of an underground cable 8.

[0131] Alternatively, the two partial cutting bodies of the same tool part 4, 5 can each have a cutting portion that can be displaced in opposite axial directions. In combination with the aforementioned wedge-shaped structure of the tool part base 12, it is possible to achieve that each partial cutting body 9, and therefore each cutting portion, also moves along the guide surface of the wedge structure, i.e., in particular, in the direction of the descending slope of the wedge structure. This also leads to the aforementioned stripping of the cable 8.

[0132] Furthermore, it is also possible that the opposing tool parts each have a first partial cutting body 9 comprising a cutting portion and a second partial cutting body 9 comprising a retaining element. The cutting portions of the first and second partial cutting bodies 9 can thus be positioned diagonally offset from one another. This means that the cutting portion of the first tool part 4, 5 is positioned relative to the retaining element of the second tool part 4, 5, and the retaining element of the first tool part 4, 5 is positioned relative to the cutting portion of the second tool part 4, 5. Consequently, the cutting portion of the first tool part 4, 5 does not cut against the opposing cutting portion, but actually cuts against the retaining element. Consequently, when the opposing tool parts 4, 5 are brought together, the described axial displacement of the mating partial cutting bodies of the first and second tool parts 4, 5 occurs as soon as the cutting portion of the first tool part 4, 5 and the retaining element of the second tool part 4, 5 are in contact with one another or almost in contact with one another. The retaining element can also be formed by a cutting portion that is blunt or rounded or has a sawtooth profile.

[0133] In one embodiment, the first partial cutting body 9 has a first cutting portion in a front region facing the second partial cutting body 9, and the second partial cutting body 9 has a second cutting portion in a front region facing the first partial cutting body 9. Due to this design, the forces acting on the cutting body 9 can be symmetrically distributed to the two partial cutting bodies. This can advantageously generate forces of equal magnitude in opposite axial directions, causing the partial regions of the insulating jacket 7 of the cable 8 on the left and right sides of the incision point to shift in opposite directions relative to the core of the cable 8.

[0134] In the case of an axial displacement of the partial cutting bodies away from each other, not only is the cutting body 9 additionally separated, but in fact also the two cutting portions are separated, whereby each cutting portion terminates the front side of the respective partial cutting body 9. During the axial displacement, at least one of the cutting portions pushes the insulating sheath 7 in front of it.

[0135] The two partial cutting bodies can also be connected by at least one reset element, whereby the reset force of the reset element attempts to move the two partial cutting bodies toward each other. The reset element can specifically be a spring element, such as a coil spring or a leaf spring, whose reset force acts in the direction of moving the two partial cutting bodies toward each other.

[0136] The reset element can for example end on the front side of the corresponding partial cutting body 9 away from the other partial cutting body 9. This force therefore acts on the outside of the cutting body 9 and connects the partial cutting body on its entire axial longitudinal extension. Alternatively, the reset element can also be arranged on the tool part base 12 or the tool jaws of the stripping tool 1. In this case, a pressure spring is recommended, which acts on the cutting body 9 from the outside, that is, acts on the front side of the cutting portion away from the cutting body 9. In this case, the reset element can also be formed as a spring element. In particular, a leaf spring is therefore advantageous.

[0137] The reset element ensures that the partial cutting bodies are displaced into an initial position in which, for example, the cutting portion or the cutting portion and the retaining element bear against each other. A displacement counter to the reset force of the reset element occurs only in the event of an axial displacement of the two partial cutting bodies relative to each other following the formation of the incision.

[0138] The cutting body 9 or part of the cutting body 9 of the respective tool part 4, 5, respectively, can preferably be pivoted relative to the tool jaws about the axial longitudinal extension of the tool jaws. The pivotable arrangement of the cutting body 9 or part of the cutting body 9, respectively, on the tool jaws can advantageously be used to enable the cutting portion to be pivoted about the insulating sheath 7 of the cable 8. This improves or supports the cutting result because the cutting movement occurs not only in the radial direction, but also, at least at the beginning of the cutting process, in the circumferential direction of the insulating sheath 7. The pivotability of the cutting body 9 or part of the cutting body 9, respectively, can also be used to optionally displace a cutting body or part of the cutting body, respectively, that is not optimally positioned in the desired receiving position of the tool jaws, preferably during the closing of the tool jaws 2, 3, during which the opposing tool parts 4, 5 are moved toward each other and thus one or both opposing pivotable cutting bodies or parts of the cutting bodies, respectively, are pivoted into the desired position.

[0139] Furthermore, it can be provided that the cutting body 9 and the partial cutting body 9 are formed as a cone. The first partial cutting body 9 can taper in particular in the axial direction towards the adjacent second partial cutting body 9 of the same tool part 4, 5, and the second partial cutting body 9 can taper in the opposite axial direction. According to this design, the partial cutting body is not formed as a semi-cylinder, for example, but is actually conical, whereby its diameter tapers. This conical design provides for the pivoting of the partial cutting body 9 around the longitudinal axis of the tool part 4, 5. The cutting body 9 or the partial cutting body 9 can be pivoted by 1 to 5 degrees, in particular by approximately 2.5 degrees, respectively. Corresponding to the conical shape of the cutting body 9 or the partial cutting body 9, respectively, the tool part base 12 is preferably also formed conically on the radially inward side. The conical shapes and dimensions of the tool part base 12 and the cutting body 9 correspond to each other in particular in such a way that in the initial position, they preferably completely abut each other. However, once the cutting body 9 or the cutting body part 9, respectively, is axially displaced relative to the tool part base 12, the diameters of the tool part base 12 and the cutting body 9 or the cutting body part 9 no longer match based on the same cross-sectional plane, so that the tool part base 12 and the cutting body 9 or the cutting body part 9 only contact each other linearly on their mutually facing faces. The cutting body 9 or the cutting body part, respectively, is particularly preferably aligned in the axial direction relative to the tool part base 12. The longitudinal axes of the two cutting body parts within the tool part base 12 also remain parallel to each other.

[0140] In the case of a cutting body 9 having two partial cutting bodies, it can be provided in particular that each partial cutting body 9 can be pivoted by approximately 2.5 degrees. When the tool parts 4, 5 are brought together, a corresponding movement of the partial cutting bodies and thus of the associated cutting sections and / or holding elements is thereby achieved, while the cutting section or sections, respectively, make an incision in the insulating sheath 7 of the cable 8. An axial displacement of the cutting body 9 or of the partial cutting bodies, respectively, in the axial direction preferably does not yet occur at this stage of the cutting process.

[0141] In particular, it can be provided that the cutting body 9 or the cutting body parts, respectively, have a preload to the forward pivoted position. This can lead to a more favorable cutting behavior of the cutting portion or portions mentioned above. The tapered shape of the cutting body parts 9 or the tapering of the cutting body 9, respectively, further ensures that the axes of the cutting body parts remain as parallel to each other as possible.

[0142] The cutting body 9 of the tool parts 4, 5 may also have an end stop for receiving the cable 8 therein. The axial end stop of the cutting body 9 limits the length of the cable 8 that can be inserted between the tool jaws 2, 3 of the stripping tool 1. The length of the core of the cable 8 exposed by stripping can be determined simultaneously therewith.

[0143] The axial end stop can particularly preferably be manually displaced relative to the tool jaws 2, 3 by the user of the stripping tool 1. The end stop can be displaced outward, for example, along a guide rail of the tool part base 12 or the cutting body 9 of the tool jaws. Thus, the end stop is mounted on the cutting body 9, the base 12 of the tool part 4, 5, or the tool jaws. In particular, it can be provided that, for example, the cutting body 9 has a guide rail that passes through a portion of the end stop, and the end stop can thus be displaced toward or away from the tool jaws, respectively.

[0144] Therefore, a lock which can fix the end stop in a desired position is preferably assigned to the end stop. According to one embodiment, a latching device or a screw can be provided in this respect which applies a holding force to a partial area of ​​the cutting body 9, such as the guide rail.

[0145] Based on the stripping tool 1, it can finally be provided that at least the first tool jaw can be linearly displaced relative to the second tool jaw or can be pivoted about a pivot axis. Therefore, the tool jaws 2, 3 can generally be closed in different ways. The stripping tool 1 comprises tool jaws 2, 3, which are linearly displaceable relative to each other, thereby forming a group of stripping tools 1. In this case, for example, the stripping tool 1 is formed so that it has tool jaws that are fixed in position relative to the handle part of the tool body and tool jaws that are linearly displaceable in opposite directions, whereby the displaceable tool jaws are shifted towards the fixed tool jaws for the stripping process. The second group of stripping tools 1 comprises the following tools, wherein at least one tool jaw, but preferably both tool jaws 2, 3, can be pivoted about a pivot axis. In the case of two tool jaws 2, 3 that can be displaced towards each other, the tool jaws 2, 3 can be pivoted about a common pivot axis or about corresponding individual pivot axes.

[0146] In addition to the stripping tool 1, a tool part pair for the stripping tool 1 is also provided, wherein the stripping tool 1 is formed according to the above-described type. The stripping tool 1 thus has a tool part pair 4, 5, which comprises a first tool part 4, 5 and a second tool part 4, 5 for stripping a cable 8 having a cable core 8 and an insulating sheath 7, thereby also providing a cutting portion for acting on the cable 8 during the stripping process, wherein each tool part 4, 5 has a cutting body 9 for receiving a portion of the cable 8, wherein the cutting body 9 has a cutting portion with a cutting edge, whereby the cutting edge delimits the free space of the cutting body 9, in which free space is provided for receiving the cable core 8, wherein the tool parts 4, 5 have a tool part base 12, which is received in the tool jaws, and the tool parts 4, 5 The cutting body 9 can be displaced in the axial direction orthogonal to the joining direction r relative to the tool part base 12, whereby the tool part base 12 and the cutting body 9 have guide surfaces 44, which are operably connected to each other and ensure displacement after overcoming the retaining force, whereby the guide surfaces 44 extend at the same obtuse angle relative to the joining direction r, whereby a force applied to the cutting body 9 can be obtained only by displacing the tool jaws 2 in the joining direction r, which force causes the guide surface 44 of the cutting body 9 and therefore the cutting body 9 to be displaced relative to the guide surface 44 of the tool part base 12, the displacement having a movement component in the axial direction corresponding to the angle.

[0147] Thus, the tool part pair 4, 5 is designed in such a way that it can function in the manner shown when received in the corresponding stripping tool 1. This design results in the advantages and features already described above with respect to the stripping tool 1. The features of the stripping tool relating to the formation of the tool parts 4, 5 also apply accordingly to the proposed tool part pair 4, 5 for the stripping tool 1.

[0148] Finally, a method for stripping a cable 8 having a cable core 8 and an insulating sheath 7 is proposed, wherein the method comprises the following method steps:

[0149] - arranging the cable 8 between two opposing cutting bodies of the first tool part 4 , 5 and the second tool part 4 , 5 , each cutting body having at least one cutting portion;

[0150] - displacing the first tool part 4 , 5 in the joining direction r toward the second tool part 4 , 5 ;

[0151] - cutting an axial partial section of the insulating sheath 7 of the cable 8 using the cutting portion of the first tool part 4 , 5 and the cutting portion of the second tool part 4 , 5 ;

[0152] - displacing the cutting body 9 of the tool part 4, 5 relative to the tool part base 12 of the tool part 4, 5 in an axial direction oriented orthogonally to the joining direction r, whereby the guide surfaces 44 of the tool part base 12 and the cutting body 9, which are operatively connected to one another and extend at the same obtuse angle to the joining direction r, provide for the displacement of the cutting body 9 after overcoming the holding force, whereby the application of force to the cutting body 9 occurs solely by means of a displacement of the tool jaws 2, 3 in the joining direction r, which application of force results in a displacement of the guide surfaces 44 of the cutting body 9 and thus of the cutting body 9 relative to the guide surfaces 44 of the tool part base 12, which displacement has a movement component in the axial direction corresponding to the angle;

[0153] Separation of an axial partial section, the insulating section 45 , of the insulating sheath 7 of the cable 8 by displacement of the cutting body 9 relative to the tool part base 12 .

[0154] The proposed method provides a procedure in at least two steps. The first step involves displacing opposing tool parts 4, 5 toward each other for cutting the insulating jacket 7 of the cable 8. The tool parts 4, 5 are thereby moved toward each other until the cutting edges of the opposing cutting sections, or at least partial regions of the opposing cutting sections, are in contact or at least approximately in contact with each other. During this first method step, the cutting sections preferably self-lock, so that only the insulating jacket 7 is cut, but no axial displacement of the cutting sections, and therefore of the insulating jacket 7, relative to the core of the cable 8, occurs. The second step of the procedure is triggered by the user further displacing the tool jaws 2, 3, and thus also the tool parts 4, 5 of the stripping tool 1, toward each other. This preferably results in a removal of the motion inhibition, particularly the self-locking effect of the cutting sections, due to the sum of the forces acting on the tool parts 4, 5. The forces acting in opposite directions on the cutting sections add up to the resulting total force in the axial direction, which then ultimately causes an axial displacement of the cutting body 9 or a portion thereof, respectively. In particular, the two partial cutting bodies are thereby moved away from each other, ie in opposite axial directions, so that the cut end section, the insulating section 45 , of the insulating sheath 7 is displaced relative to the cable 8 core of the cable 8 .

[0155] The displacement of the cutting body 9 relative to the tool part base 12 occurs by means of a force exerted by the first tool part 4, 5 toward the displacement of the second tool part 4, 5, causing at least a partial region of the cutting body 9 of the respective tool part 4, 5 to be pressed against at least one axially inclined guide surface of the wedge-shaped structure. In response to continued application of force, the cutting body 9, or a partial region of the cutting body 9, is guided downward along the inclined guide surface, starting from the wedge peak of the wedge structure, and thereby simultaneously displaced in the axial direction until reaching an end position. This also applies to the matching conical shape of the guide surfaces 44. The end position is determined by the closing of the tool jaws 2, 3 or, alternatively, by a reset element, whose reset force intends to shift the cutting body 9, or a partial region of the cutting body 9, respectively, back to the initial position, or in other words, the reset element connects the two partial cutting bodies of the cutting body 9 and attempts to move them toward each other. The end position is further determined by at least the convergence of the tool parts 4, 5 in which the cutting device is disposed. The end position is further specified at least by the convergence of the tool part base 12 of the first tool part 4 , 5 and the tool part base 12 of the second tool part 4 , 5 .

[0156] The displacement of the cutting body 9 in the axial direction preferably comprises a displacement of a first partial cutting body 9 and a second partial cutting body 9 of the cutting body 9 in opposite axial directions relative to each other. In particular, a symmetry of the displacement movement of the partial cutting bodies relative to the tool parts 4, 5 tool part base 12 of the respective tool parts 4, 5 can thereby be achieved. Starting from the cutting point, forces are therefore exerted on the insulating sheath 7 in two opposite directions, which simplifies the stripping of the cable 8. The displacement of the two partial cutting bodies relative to each other can, on the one hand, comprise a displacement of the two cutting portions relative to each other. Alternatively, the displacement of the two partial cutting bodies can comprise removing the first partial cutting body 9 comprising the cutting portion from the second partial cutting body 9 comprising the retaining element.

[0157] For the two partial cutting bodies of the cutting body 9, it can be provided in particular that each partial cutting body 9 has a cutting portion, whereby a first cutting portion arranged on a front area of ​​the first partial cutting body 9 facing the second partial cutting body 9 is separated from a second cutting portion arranged on a front area of ​​the second partial cutting body 9 facing the first partial cutting body 9. Thus, when two adjacent partial cutting bodies are moved apart from one another, a particularly central and symmetrical separation of the two cutting portions also occurs simultaneously.

[0158] Reference Signs List

[0159] 1 stripping tool

[0160] 2 tool jaws

[0161] 3 tool jaws

[0162] 4 Tool parts

[0163] 5 tool parts

[0164] 6 cable cores

[0165] 7Insulation sheath

[0166] 8 cables

[0167] 9. Cut the body

[0168] 10 Drive unit components

[0169] 11 cutting edges

[0170] 12 tool component base

[0171] 13 parts cutting the main body

[0172] 14 parts cutting the main body

[0173] 15Front area

[0174] 16 cutting part

[0175] 17 Cutting Department

[0176] 18 reset element

[0177] 19 Wedge-shaped structure

[0178] 20 Wedge Peak

[0179] 21 guide surface

[0180] 22 end stops

[0181] 23 handle area

[0182] 24 working heads

[0183] 25 accumulator

[0184] 26 Free Space

[0185] 27 rails

[0186] 28 locks

[0187] 29 actuator

[0188] 30 holding elements

[0189] 31 contact surface

[0190] 32 contact surfaces

[0191] 33 contact surface

[0192] 34 contact surfaces

[0193] 35 contact surface

[0194] 36 contact surfaces

[0195] 37 contact surface

[0196] 38 contact surfaces

[0197] 39 journal

[0198] 40 stopper

[0199] 41 protrusion

[0200] 42 guide grooves

[0201] 43 spring elements

[0202] 44 guide surface

[0203] 45 insulation sections

[0204] aAxial direction

[0205] α wedge angle

[0206] β cutting angle

[0207] rJoint direction

Claims

1. A stripping tool (1) comprising a pair of tool jaws (2, 3) which are displaceable towards each other in a joining direction (r) for a stripping process, having a first tool jaw (2) and a second tool jaw (3), the stripping tool comprising a pair of tool parts (4, 5) having a first tool part (4) and a second tool part (5) for stripping a cable (8) having a cable core (6) and an insulating sheath (7), whereby a cutting portion (16, 17) is also provided for acting on the cable (8) during the stripping process, whereby each tool part (4, 5) has a cutting body (9) for receiving a partial area of ​​the cable (8), whereby the cutting body (9) has a cutting portion (16, 17), the cutting portion comprising a cutting edge (11), whereby the cutting edge (11) delimits a free space (26) of the cutting body (9) in which provision is made for receiving the cable core (6), whereby the tool parts (4, 5) has a tool part base (12) which is received on the tool jaws (2, 3), whereby the cutting body (9) of the tool part (4, 5) can be displaced in an axial direction (a) orthogonal to the joining direction (r) relative to the tool part base (12), whereby the tool part base (12) and the cutting body (9) have guide surfaces (21, 44) which are operatively connected to each other and ensure displacement after overcoming the retaining force, whereby the guide surfaces (21, 44) extend at the same obtuse angle to the joining direction (r), whereby a force can be applied to the cutting body (9) solely by displacing the tool jaws (2) in the joining direction (r), which force results in a displacement of the guide surface (44) of the cutting body (9) and therefore of the cutting body (9) relative to the guide surface (21) of the tool part base (12), the displacement having a movement component in the axial direction (a) corresponding to said angle.

2. The stripping tool (1) according to claim 1, characterized in that The tool part base (12) has a wedge-shaped structure (19) comprising at least one guide surface (21) or comprising at least two guide surfaces (21) converging in opposite axial directions (+a, -a) towards a common wedge peak (20).

3. The stripping tool (1) according to claim 1 or 2, characterized in that: The cutting body (9) has two partial cutting bodies (13, 14) which are displaceable relative to each other and in opposite axial directions (+a, -a), including a first partial cutting body (13) and a second partial cutting body (14).

4. The stripping tool (1) according to claim 3, characterized in that The first partial cutting body (13) has a first cutting device (16) on a front area (15) facing the second partial cutting body (14), and the second partial cutting body (14) has a second cutting portion (17) on a front area (15) facing the first partial cutting body (13).

5. The stripping tool (1) according to claim 3 or 4, characterized in that The two partial cutting bodies (13, 14) are connected to each other by at least one restoring element (18), whereby the restoring force of the restoring element (18) attempts to move the two partial cutting bodies (13, 14) towards each other.

6. Stripping tool (1) according to any one of the preceding claims, characterized in that The cutting body (9) or the part of the cutting body (13, 14) is rotatable relative to the tool jaws (2, 3) about the axial longitudinal extension of the tool jaws (2, 3).

7. The stripping tool (1) according to any one of claims 3 to 6, characterized in that The cutting body (9) and the partial cutting bodies (13, 14) are formed conically.

8. Stripping tool (1) according to any one of the preceding claims, characterized in that The cutting body (9) has an end stop (22) for receiving the cable (8) in the end stop (22).

9. The stripping tool (1) according to any one of the preceding claims, characterized in that At least the first tool jaw (2) is linearly displaceable relative to the second tool jaw (3) or pivotable about a pivot axis.

10. A tool component pair (4, 5) for a stripping tool (1) according to any one of the preceding claims.

11. A method for stripping a cable (8) having a cable core (6) and an insulating sheath (7), comprising the method steps of: - arranging the cable (8) between two opposing cutting bodies (9) of the first tool part (4) and the second tool part (5), each cutting body having at least one cutting device (16, 17); - displacing the first tool part (4) in the joining direction (r) towards the second tool part (5); - cutting an axial partial section of the insulating sheath (7) of the cable (8) using the cutting portion (16, 17) of the first tool part (4) and the cutting portion (16, 17) of the second tool part (5); - displacing the cutting body (9) of the tool part (4, 5) relative to the tool part base (12) of the tool part (4, 5) in an axial direction (a) oriented orthogonally to the joining direction (r), whereby the guide surfaces (21, 44) of the tool part base (12) and the cutting body (9) which are operatively connected to each other and extend at the same obtuse angle relative to the joining direction (r) provide for the displacement of the cutting body (9) after overcoming the holding force, whereby the application of force to the cutting body (9) occurs solely by means of a displacement of the tool jaws (2, 3) in the joining direction (r), which application of force results in a displacement of the guide surface (44) of the cutting body (9) relative to the guide surface (21) of the tool part base (12), the displacement having a movement component in the axial direction (a) corresponding to said angle; - Separation of an axial partial section of the insulating sheath (7) of the cable (8) by displacement of the cutting body (9) relative to the tool part base (12).

12. The method according to claim 11, wherein The displacement of the cutting body (9) relative to the tool part base (12) occurs along at least one guide surface (21) of a wedge-shaped structure (19) descending in the axial direction (a).

13. The method according to claim 11 or 12, wherein: The displacement of the cutting body (9) in the axial direction comprises a displacement of a first portion (13) and a second portion (14) of the cutting body (9) relative to each other in opposite axial directions (+a, -a).

14. The method according to claim 13, wherein: A first cutting portion (16) arranged on a front region (15) of the first partial cutting body (13) facing the second partial cutting body (14) is separated from a second cutting portion (17) of the second partial cutting body (14) arranged on a front region (15) facing the first partial cutting body (13).

15. A stripping tool (1), a tool part pair (4, 5) or a method for stripping, characterized in that One or more of the characterizing features of one of the preceding claims.

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