DE102023124156A1 - cutting tool - Google Patents

Abstract

The invention relates to a cutting tool (1) with two cutting parts (4, 5), wherein the cutting parts (4, 5) are connected to one another in a joint (10) for respective movement along a cutting plane (E), wherein the cutting parts (4, 5) further delimit a cutting mouth (M) when the cutting parts (4, 5) are open and each have free ends (32, 33) facing away from the joint (10) and ends facing the joint (10). In order to advantageously further develop a cutting tool of the type in question, it is proposed that an angular receiving part (6) is hinged to the free end (33) of one of the cutting parts (4), which can be pivoted between a pivoted-out receiving position and a pivoted-in holding position for holding a cutting material (39) during a cutting process.

Description

field of technology

The invention relates to a cutting tool with a first cutting part and a second cutting part, wherein the cutting parts are connected to one another in a joint for respective movement along a cutting plane, wherein furthermore the cutting parts delimit a cutting mouth in an open state of the cutting parts and each have free ends facing away from the joint and ends facing the joint.

State of the art

Cutting tools of the type in question are known in different designs, for example for cutting electrical cables, such as underground cables or pipes, and in particular plastic pipes. The cutting parts of the cutting tool that delimit the cutting mouth can each be designed like a knife. Designs are also known in which only one cutting part, in particular a movable cutting part that is designed like a knife, is provided. The other cutting part can only serve to support the material to be cut in the area of the cutting mouth.

From the US 6 370 780 B1 A cutting tool is known in which the first cutting part is designed with a receiving surface for holding the material to be cut and an insertion slot for the second cutting part passing through the receiving surface. Furthermore, the state of the art refers to the US 4 312 127 A which has a second cutting part which is mounted on the first cutting part and can be operated via a ratchet drive. The same can also be seen, for example, from the US 6 098 291 A known.

Starting from a state of the art as initially mentioned, for example, the task is to advantageously further develop a cutting tool of the type in question.

Summary of the Invention

A possible solution to the problem is provided according to a first inventive idea in a cutting tool in which an angle-shaped receiving part is hinged to the free end of one of the cutting parts, which can be pivoted between a pivoted-out receiving position and a pivoted-in holding position for holding a material to be cut during a cutting process.

A further possible solution to the problem can be achieved according to a further inventive idea in that an angle-shaped receiving part is attached to the free end of one of the cutting parts, which can be displaced between an advanced receiving position and a retracted holding position for holding a material to be cut during a cutting process.

According to a further possible solution, it can also be provided that a receiving part is attached to a free end of one of the cutting parts and that the receiving part is adjustable in a locking manner in order to change a receiving space which is delimited by the receiving part itself or in cooperation of the receiving part with one of the cutting parts.

The arrangement of the angled receiving part makes it easier to insert the material to be cut, particularly material with a comparatively large diameter, into the cutting mouth. The material to be cut is preferably inserted into the receiving part which has been swung out into the receiving position or moved into a protruding position relative to the associated cutting part and is then moved together with the receiving part into the holding position by swung in or by sliding the receiving part back, in which holding position the cutting process can then take place. For this purpose, the receiving part is arranged at a free end of a cutting part which delimits the cutting mouth, preferably hinged or slidably mounted.

In an embodiment in which pivotability of the receiving part is provided, the relevant geometric pivot axis of the receiving part can run in the same direction as a geometric pivot axis of the cutting parts. Accordingly, the geometric pivot axis of the receiving part can run essentially perpendicular to the cutting plane according to a preferred embodiment.

If the receiving part can be displaced, a straight-line displacement direction can result which is essentially oriented along a longitudinal extension of the associated cutting part.

The receiving part has a first receiving leg and a second receiving part leg extending at an acute or obtuse angle thereto. With regard to the preferably U-shaped receiving part design described below, the receiving part leg corresponds to the U-web and the other leg, the receiving meschenkel, one of the U-legs, which is also described as the insertion leg.

With a pivotable arrangement on the cutting part, the receiving part can be displaced from the receiving position in the direction of the holding position, as well as back from the holding position into the receiving position, over a pivot angle of more than 30°, more preferably 45° up to, for example, 90°, in particular approximately 55° to 60°. The end position, corresponding to the receiving position and/or the holding position, can be limited by a stop.

In the receiving position, the receiving part can extend at least partially outside the cutting mouth delimited by the cutting parts. The material to be cut is accordingly preferably received by the receiving part essentially outside the cutting mouth and guided into the area of the cutting mouth after pivoting in or pushing back into the holding position.

The pivoting or sliding movement of the receiving part from the receiving position to the holding position can be carried out manually, for example by directly engaging the receiving part, but alternatively also by acting on the material to be cut that is inserted into the receiving part. In the case of electric or electro-hydraulic cutting tools, the respective drive energy can also be used for the motor-driven movement of the receiving part.

The cutting parts do not each have to be designed with a cutting edge. One of the cutting parts, preferably the first cutting part, can also only perform the function of a counterholder. The counterholder can be designed as an anvil with a contact surface running transversely to the cutting plane. The counterholder can also be designed with an entry opening, optionally formed as an entry slot, for a cutting edge of the further, second cutting part.

In one possible embodiment, the receiving part is pivotably or displaceably mounted on the free end of the cutting part designed as a counterholder.

In order to adapt the receiving space to the cross-sectional extent of the material to be cut, for example the diameter, a locking adjustment can be provided, which can also have a stand-alone significance on its own and independently of the further design of the cutting tool, in particular with regard to the pivotable or sliding displaceable arrangement of the receiving part at the free end of the cutting part.

In this case, for example, the receiving leg can be displaceable relative to the receiving part leg and/or the associated cutting part or the receiving part leg can be displaceable relative to the receiving leg and/or the cutting part, wherein the desired displacement position can be secured due to a locking mechanism at least during the cutting process.

Such a locking mechanism can already occur in the swiveled out or advanced receiving position of the receiving part and can be maintained in the swiveled in or pushed back holding position at least until the cutting process is completed. Alternatively, however, this locking mechanism can also only occur in the holding position or during the swiveling or sliding movement of the receiving part into the holding position.

The locking position can, as further preferred, be canceled solely by deliberate user intervention, for example as a result of and during the course of a return displacement of the receiving part in the direction of the receiving position. A targeted cancellation of the locking position can also be carried out before the return displacement of the receiving part is initiated.

Further features are explained below, also in the description of the figures, often in their preferred allocation to the solution described in principle or to further features. However, they can also be important in an allocation to only individual features already described or to the respective further described feature, or each can be of importance independently.

Thus, according to a preferred embodiment, the cutting tool can be manually operated and have a first and a second handle part. One of the handle parts can be designed as a fixed handle part and the other handle part can be designed as a handle part that can pivot relative to the fixed handle part.

The first cutting part can also be designed as a fixed cutting part, with the joint via which the two cutting parts are connected to one another being arranged on the first cutting part. In a manually operable design of the cutting tool, the fixed handle part can also be rigidly connected to the fixed cutting part.

In a further preferred embodiment, both handle parts are attached to the fixed cutting part attached, the fixed handle part is preferably rigidly connected to the fixed cutting part and the pivotable handle part is preferably connected via a further joint. The second cutting part can also be pivotable via a ratchet drive, as is also preferred. For this purpose, the pivotable handle part can act on a toothing formed on the second cutting part via a feed lever when this handle part is actuated and thus cause a pivoting displacement of the second cutting part, wherein a locking lever which also engages in the toothing prevents an unwanted backward displacement of the second cutting part.

According to a preferred embodiment, the receiving part can be hinged to the free end of the fixed cutting part. Accordingly, when the cutting process is carried out, the second cutting part also moves relative to the receiving part that receives the material to be cut.

The cutting parts of the cutting tool are preferably arranged in such a way that they can be moved past one another like scissors. In particular, the first, fixed cutting part can serve directly, but preferably only indirectly via the receiving part, as an abutment for the material to be cut, while the second, pivotable cutting part has a cutting edge with a knife-like cutting edge design.

The second, pivotable cutting part can be moved laterally along the first, fixed cutting part with respect to the cutting plane during and in particular at the end of the cutting process. In this context, a design is also preferred in which the first cutting part has a first insertion slot into which the second cutting part moves during a cutting process. This advantageously results in indirect or direct support of the material to be cut on the first, fixed cutting part on both sides of the cutting plane.

In order to achieve favorable support of the material to be cut in the area of the receiving part during the cutting process, in a preferred embodiment the receiving part also has a second insertion slot into which the second cutting part can be inserted during a cutting process. The first insertion slot of the first cutting part and the second insertion slot of the receiving part extend together in accordance with the cutting plane.

The second insertion slot is preferably larger than the first insertion slot when viewed perpendicular to the cutting plane. In the holding position, the first insertion slot is further preferably arranged within the second insertion slot.

Viewed perpendicular to the cutting plane, correspondingly viewed in the direction of the geometric pivot axis of the second cutting part, the receiving part can have a substantially U-shaped design. The receiving part can have two U-legs that may run substantially parallel to one another and a U-web connecting these U-legs. The U-legs can also diverge from one another, including a small angle of, for example, 1° to 10°, further, for example, about 5° towards the U-opening.

The receiving part has a receiving contour that delimits an opening area of the U-shaped receiving part design. Furthermore, the opening area is particularly delimited by the contact surfaces of the U-legs and the U-web, which face inwards and thus essentially towards one another, and by an opening plane that touches the free ends of the U-legs of the receiving part and runs along the receiving opening that is created between the U-legs. In a preferred embodiment, this receiving contour is not penetrated by an outermost edge of the first cutting part, regardless of the pivot position of the receiving part. In a preferred embodiment, no cutting part section appears in the opening area of the receiving part design in any displacement position, and accordingly also in any intermediate displacement position of the receiving part.

The receiving part can have an insertion leg and a contact leg extending approximately at a right angle to it. In the case of the U-shaped receiving part design, the insertion leg is one of the U-legs, while the contact leg is essentially provided by the U-web. In the basic design described at the beginning, only the insertion leg and the contact leg can be provided. The insertion leg can also enclose an acute angle of, for example, more than 60° up to an obtuse angle of, for example, about 120°, more preferably, for example, more than 70° up to, for example, less than 90°, for example, about 80°.

When the receiving part is pivoted in or pushed back, which corresponds to the holding position, the insertion leg can essentially close the cutting mouth before starting and during a cutting process. the insertion leg, for example, is directed essentially transversely to the first, fixed cutting part in the direction, at least with reference to a tool position before the start of the cutting process, of the opposite second cutting part. A distance can certainly be established between the free end of the insertion leg and the facing second cutting part and/or a fixed section of the cutting tool associated with this second cutting part, which, however, in a preferred embodiment is selected to be smaller than the diameter or the smallest transverse extension of a material to be cut to be received in the cutting mouth.

In a further embodiment, the receiving part can have two insertion legs, a first and a second insertion leg, which together with the contact leg produce the U-shaped design of the receiving part. The two insertion legs extending from the contact leg can have different lengths, whereby the length of the first insertion leg can correspond, for example, to approximately 1.5 to 2.5 times, furthermore, for example, approximately 2 times the length of the second insertion leg. Furthermore, the first insertion leg can have an extension length that can correspond, for example, to approximately 1.05 to 1.5 times, furthermore, for example, approximately 1.2 times the length of the contact leg.

In addition, the second, preferably shorter insertion leg can enclose a preferably obtuse angle of more than 90° with respect to the surfaces pointing inwards towards the receiving part opening surface to the contact leg, for example an angle of approximately 95° up to 120°, for example approximately an angle of 100° to 110°, for example approximately 105°.

The receiving contour can have a rounding with a comparatively large radius in the transition from the inner surfaces of the first insertion leg to the contact leg. The radius can correspond to approximately 0.25 to 0.5 times the length of the first insertion leg. In a further embodiment, the transition from the contact leg to the second insertion leg can also be rounded, but with a significantly smaller radius compared to the rounding in the area between the first insertion leg and the contact leg, which can correspond to approximately 0.25 to 0.5 times, furthermore, for example, approximately one third of the radius between the first insertion leg and the contact leg.

According to a further development, preferably in the case of the U-shaped receiving part design, the first insertion leg can be designed to be displaceable in order to change the size of the receiving part opening area or also, preferably in the case of the design with only a first receiving leg and a second receiving part leg, to enlarge the receiving area of the receiving part leg. As a result of this design, the receiving part opening area can be adapted to the cross-sectional size of the material to be cut, for example in the case of a tubular material to be cut, to the diameter of the material to be cut, at least substantially. By moving the first insertion leg in one or the opposite direction, it is possible to reduce or increase the distance to the possibly provided second insertion leg and thus to the receiving part opening area.

According to a further preferred embodiment, the first insertion leg can be displaceable along the contact leg. In the case of the preferred embodiment with a U-shaped receiving part design, this results in a preferred parallel displaceability of the first insertion leg relative to the second insertion leg and approximately along the contact leg.

The first insertion leg can advantageously be secured against further displacement in different displacement positions. For example, a pin or the like that can be inserted in the desired displacement position of the insertion leg can be provided for this purpose.

Preferably, a locking holder is provided to form the securing device. This also preferably results in up to, for example, five, ten, fifteen or more, for example up to thirty locking offset positions, further, for example, three, thirteen or twenty-three locking offset positions. In the case of the design with only one receiving leg and one receiving part leg, the offset positions of the receiving leg relative to the receiving part leg result accordingly.

In this context, the first insertion leg can, for example, essentially consist of a fixed first insertion part leg that is rigidly connected to the contact leg and via this to the second insertion leg, and a second insertion part leg that can be displaced relative to this along the contact leg and which, in a preferred basic position, can form the first insertion leg together with the first insertion part leg. In the preferably locked offset position, the second insertion part leg alone can form the effective first insertion leg. The The locking can take place, as is preferred, between the movable insertion part leg and the rigid insertion part leg. It is also possible to lock the movable insertion part leg, for example, with the contact leg or with a fixed cutting part of the cutting tool.

The securing, preferably locking, is provided in a manner which is advantageous in terms of handling, in particular in the pivoted-in or pushed-back holding position of the receiving part, so that the material to be cut is held securely in the receiving part during the cutting process despite the effect of the movable cutting part on the material to be cut.

The locking can only be provided in the holding position, preferably after pivoting in or sliding back the receiving part from the receiving position upon reaching the holding position.

Alternatively, the locking mechanism can also be engaged in the swiveled-out or advanced receiving position, so that the displaceable insertion part reaches the holding position already locked.

If the securing or locking mechanism is provided between the displaceable insertion part leg and a cutting part, this cutting part can have a counter toothing which is designed for preferably positive-locking interaction with a toothing of the displaceable insertion part leg.

According to one possible embodiment, the toothing of the displaceable insertion part leg can be formed on a plug-in part, which plug-in part is formed in particular on the linearly displaceable holder of the displaceable insertion part leg on the contact leg of the receiving part that is fixed relative thereto.

A particular advantage in terms of handling technology arises if, according to another possible embodiment, the displaceable insertion part leg is loaded by a spring in the direction of a basic position. For example, a compression or tension spring can be used for this purpose, or furthermore, for example, a cylinder tension spring.

The basic position is preferably the displacement position of the insertion part leg, in which a smallest extension dimension of the U-shaped design of the receiving part, viewed in the direction of displacement of the insertion part leg, or the smallest distance dimension between the first insertion leg and the possibly provided second insertion leg is obtained. A cutting material inserted into the receiving part with an extension dimension, for example diameter, that exceeds this smallest distance dimension is therefore, at least in the receiving position, pressed by the spring-loaded insertion part leg preferably against the fixed second insertion leg, so that the displacement position of the insertion part leg to be secured in the holding position can be automatically adopted, adapted to the extension dimension of the cutting material.

It has proven particularly advantageous that in the holding position of the receiving part, a force of the second cutting part acting on the material to be cut loads the receiving part - essentially via the material to be cut - into the holding position. Accordingly, simply by carrying out the cutting process, the receiving part is stable in the pivoted-in or pushed-back, preferably stop-limited position.

The ranges or value ranges or multiple ranges specified above and below also include all intermediate values with regard to the disclosure, in particular in 1/10 steps of the respective dimension, and may therefore also be dimensionless. For example, the specification 60° to 120° also includes the disclosure of 60.1° to 120°, 60° to 119.9°, 60.1° to 119.9°, etc., the disclosure of 1.5 to 2.5 times, also the disclosure of 1.6 to 2.5 times, 1.5 to 2.4 times, 1.6 to 2.4 times, etc. This disclosure can serve on the one hand to delimit a specified range limit from below and/or above, but alternatively or additionally also to disclose one or more singular values from a respectively specified range.

Short description of the drawings

• 1 das Schneidwerkzeug in einer ersten Ausführungsform;
• 2 das Schneidwerkzeug in einer ersten Ausführungsform, schematisch die Anwendung darstellend;
• 3 das Schneidwerkzeug gemäß 1 in einer partiell geschnittenen Seitenansicht, betreffend eine ausgeschwenkte Aufnahmestellung eines Aufnahmeteils;
• 4 eine Folgedarstellung zu 3, eine Zwischenstellung im Zuge des Einschwenkens des ein Schneidgut aufnehmenden Aufnahmeteils in Richtung auf eine Halterungsstellung;
• 5 das Schneidwerkzeug mit dem Aufnahmeteil in der Halterungsstellung;
• 6 eine Folgedarstellung zu 5, eine Zwischenstellung im Zuge der Durchführung eines Schneidvorgangs betreffend;
• 7 eine der 6 im Wesentlichen entsprechende Darstellung, jedoch bei Aufnahme eines gegenüber dem Schneidgut in 6 im Durchmesser verringerten Schneidguts;
• 8 eine weitere der 6 im Wesentlichen entsprechende Darstellung, jedoch bei Aufnahme eines gegenüber dem Schneidgut in 6 weiter im Durchmesser verringerten Schneidguts;
• 9 das Schneidwerkzeug in einer Stellung im Moment der Vollendung des Schneidvorgangs;
• 10 den Bereich eines mit dem Aufnahmeteil versehenen Schneidmauls des Schneidwerkzeugs in vergrößerter Darstellung;
• 11 in explosionsperspektivischer Darstellung den Bereich des Schneidmauls des Schneidwerkzeugs sowie das dem Schneidmaul zuordbare Aufnahmeteil, weiter mit einem Schneidgut;
• 12 das Aufnahmeteil in einer Einzeldarstellung, betreffend eine Ansicht gemäß Pfeil XII in 11;
• 13 das Schneidwerkzeug in einer zweiten Ausführungsform, die Aufnahmestellung des Aufnahmeteils betreffend;
• 14 eine der 13 im Wesentlichen entsprechende Darstellung, wobei das Aufnahmeteil in eine Halterungsstellung verschwenkt ist;
• 15 den Bereich XV in 14, bei partiell geschnittener Darstellung des Aufnahmeteils;
• 16 die Stirnansicht gegen das Schneidwerkzeug gemäß Pfeil XVI in 14;
• 17 das Aufnahmeteil in einer Ansicht gemäß Pfeil XVII in 15;
• 18 das Aufnahmeteil in einer Ansicht gemäß Pfeil XIX-XIX in 18;
• 19 den Schnitt entlang der Linie XVIII-XVIII in 18, eine erste Versetzungsstellung eines Einführschenkels des Aufnahmeteils betreffend;
• 20 eine der 19 entsprechende Schnittdarstellung, jedoch betreffend eine zweite Versetzungsstellung des Einführschenkels;
• 21 eine weitere der 19 entsprechende Schnittdarstellung, mit dem Einführschenkel in einer dritten Versetzungsstellung;
• 22 das Aufnahmeteil der zweiten Ausführungsform in perspektivischer Explosionsdarstellung;
• 23 die Draufsicht auf das Aufnahmeteil gemäß Pfeil XXIII in 17;
• 24 die Unteransicht gegen das Aufnahmeteil gemäß Pfeil XXIV in 17;
• 25 den Schnitt entlang der Ebene XXV in 13 betreffend die Ausschwenkstellung des Aufnahmeteils;
• 26 eine Schnittdarstellung gemäß 25, betreffend die Einschwenkstellung;
• 27 den Schnitt entlang der Ebene XXVII in 14;
• 28 eine der 3 im Wesentlichen entsprechende Darstellung, jedoch eine dritte Ausführungsform betreffend;
• 29 das Schneidwerkzeug der dritten Ausführungsform bei Aufnahme eines Schneidguts in dem Aufnahmeteil;
• 30 das Schneidwerkzeug gemäß 29 mit dem Aufnahmeteil in der Halterungsstellung;
• 31 das Schneidwerkzeug in einer weiteren Ausführungsform, betreffend die Aufnahmestellung des Aufnahmeteils;
• 32 eine der 31 entsprechende Darstellung, bei in eine Halterungsstellung verschwenktem Aufnahmeteil;
• 33 eine explosionsperspektivische Darstellung des Aufnahmeteils sowie Teile des Schneidwerkzeugs der Ausführungsform gemäß 31;
• 34 die Ansicht gemäß Pfeil XXXIV in 32, partiell geschnitten;
• 35 den vergrößerten Bereich XXXV in 34;
• 36 den Schnitt entlang der Linie XXXVI-XXXVI in 35;
• 37 den Schnitt entlang der Linie XXXVII-XXXVII in 35;
• 38 die Ansicht gemäß Pfeil XXXVIII in 32;
• 39 den Schnitt entlang der Linie XXXIX-XXXIX in 38, die Aufnahmestellung mit in dem Aufnahmeteil eingelegtem Schneidgut betreffend;
• 40 eine der 39 im Wesentlichen entsprechende Schnittdarstellung, jedoch die Halterungsstellung betreffend, bei in das Aufnahmeteil eingelegtem Schneidgut mit für dieses Aufnahmeteil größtmöglichem Durchmesser;
• 41 eine der 40 im Wesentlichen entsprechende Schnittdarstellung, jedoch bei in das Aufnahmeteil eingelegtem Schneidgut mit gegenüber dem Schneidgut in 40 verringertem Durchmesser;
• 42 in Seitenansicht das Schneidwerkzeug in einer weiteren Ausführungsform, betreffend die Aufnahmestellung des Aufnahmeteils;
• 43 eine der 42 entsprechende Darstellung, bei in die Halterungsstellung verschobenem Aufnahmeteil;
• 44 die partiell geschnitten dargestellte Vergrößerung des Bereichs XLIV in 43;
• 45 den vergrößert dargestellten Schnitt entlang der Linie XLV - XLV in 43, bei Sicherung der Aufnahmeteil-Stellung über einen Formschluss;
• 46 den vergrößerten Bereich XLVI in 45;
• 47 den Schnitt entlang der Linie XLVII - XLVII in 46;
• 48 eine der 45 entsprechende Schnittdarstellung, jedoch betreffend eine Aufhebestellung des die Aufnahmeteil-Stellung sichernden Formschlusses;
• 49 den vergrößerten Bereich XLIX in 48;
• 50 den Schnitt entlang der Linie L - L in 49;
• 51 in teilweiser explosionsperspektivischer Darstellung den Bereich einer Linearführung des Aufnahmeteils an dem Schneidwerkzeugs gemäß 42;
• 52 die Linearführung in einer partiellen Schnittdarstellung.

The invention is explained below with reference to the attached drawing, which, however, only shows exemplary embodiments. A part that is only explained in relation to one of the exemplary embodiments and is not replaced by another part in a further exemplary embodiment due to the special feature highlighted there, is therefore also described for this further exemplary embodiment as a possible existing part. The drawing shows:

• 1 the cutting tool in a first embodiment;
• 2 the cutting tool in a first embodiment, schematically illustrating the application;
• 3 the cutting tool according to 1 in a partially sectioned side view, concerning a pivoted-out receiving position of a receiving part;
• 4 a follow-up presentation to 3 , an intermediate position during the pivoting of the receiving part holding a product to be cut in the direction of a holding position;
• 5 the cutting tool with the receiving part in the holding position;
• 6 a follow-up presentation to 5 , relating to an intermediate position during the execution of a cutting operation;
• 7 one of the 6 essentially corresponding representation, but with the inclusion of a 6 material to be cut with a reduced diameter;
• 8 another of the 6 essentially corresponding representation, but with the inclusion of a 6 further reduced diameter of the material to be cut;
• 9 the cutting tool in a position at the moment of completion of the cutting operation;
• 10 the area of a cutting mouth of the cutting tool provided with the receiving part in an enlarged view;
• 11 in an exploded perspective view, the area of the cutting mouth of the cutting tool as well as the receiving part assigned to the cutting mouth, further with a material to be cut;
• 12 the receiving part in a single representation, concerning a view according to arrow XII in 11 ;
• 13 the cutting tool in a second embodiment, concerning the receiving position of the receiving part;
• 14 one of the 13 essentially corresponding representation, wherein the receiving part is pivoted into a holding position;
• 15 the area XV in 14 , with a partially cut-out representation of the recording part;
• 16 the front view against the cutting tool according to arrow XVI in 14 ;
• 17 the receiving part in a view according to arrow XVII in 15 ;
• 18 the receiving part in a view according to arrow XIX-XIX in 18 ;
• 19 the section along the line XVIII-XVIII in 18 , concerning a first displacement position of an insertion leg of the receiving part;
• 20 one of the 19 corresponding sectional view, but concerning a second displacement position of the insertion leg;
• 21 another of the 19 corresponding sectional view, with the insertion leg in a third displaced position;
• 22 the receiving part of the second embodiment in a perspective exploded view;
• 23 the top view of the receiving part according to arrow XXIII in 17 ;
• 24 the bottom view against the receiving part according to arrow XXIV in 17 ;
• 25 the section along plane XXV in 13 concerning the swivel position of the receiving part;
• 26 a sectional view according to 25 , concerning the swivel position;
• 27 the section along plane XXVII in 14 ;
• 28 one of the 3 essentially corresponding representation, but concerning a third embodiment;
• 29 the cutting tool of the third embodiment when receiving a material to be cut in the receiving part;
• 30 the cutting tool according to 29 with the receiving part in the holding position;
• 31 the cutting tool in a further embodiment, concerning the receiving position of the receiving part;
• 32 one of the 31 corresponding representation, with the receiving part pivoted into a holding position;
• 33 an exploded perspective view of the receiving part and parts of the cutting tool of the embodiment according to 31 ;
• 34 the view according to arrow XXXIV in 32 , partially cut;
• 35 the enlarged area XXXV in 34 ;
• 36 the section along the line XXXVI-XXXVI in 35 ;
• 37 the section along the line XXXVII-XXXVII in 35 ;
• 38 the view according to arrow XXXVIII in 32 ;
• 39 the section along the line XXXIX-XXXIX in 38 , the recording position with in concerning the cutting material inserted into the receiving part;
• 40 one of the 39 essentially corresponding sectional view, but concerning the holding position, with material to be cut inserted into the receiving part with the largest possible diameter for this receiving part;
• 41 one of the 40 essentially corresponding sectional view, but with the material to be cut inserted into the receiving part with the material to be cut in 40 reduced diameter;
• 42 in side view the cutting tool in a further embodiment, concerning the receiving position of the receiving part;
• 43 one of the 42 corresponding representation, with the receiving part moved into the holding position;
• 44 the partially sectioned enlargement of area XLIV in 43 ;
• 45 the enlarged section along the line XLV - XLV in 43 , when securing the receiving part position via a positive locking mechanism;
• 46 the enlarged area XLVI in 45 ;
• 47 the section along the line XLVII - XLVII in 46 ;
• 48 one of the 45 corresponding sectional view, but concerning a lifting position of the form closure securing the receiving part position;
• 49 the enlarged area XLIX in 48 ;
• 50 the cut along the line L - L in 49 ;
• 51 in a partially exploded perspective view the area of a linear guide of the receiving part on the cutting tool according to 42 ;
• 52 the linear guide in a partial sectional view.

Description of the embodiments

Shown and described is a manually operable cutting tool 1 with a first, fixed handle part 2 and a second, pivotable handle part 3 as well as a first, fixed cutting part 4 and a second cutting part 5 pivotable relative to the cutting part 4 and, in addition, a receiving part 6.

The 1 to 12 show a first embodiment of the cutting tool 1. The 13 to 27 relate to a second embodiment based on the first embodiment with an adjustable receiving part 6. A third embodiment is shown in the 28 to 30 shown. The 31 to 41 show a fourth embodiment. A further fifth embodiment, which is essentially based on the fourth embodiment, is shown in 42 to 52 .

Starting from a preferably plate-like tool body 7, the first fixed handle part 2 preferably extends in one piece and more preferably of the same material. The first fixed cutting part 4 also preferably extends in the opposite direction to the handle part 2 in the manner of a freely projecting leg, preferably in one piece and more preferably of the same material.

As can be seen particularly from the representations in the 13 and 14 As can be seen with respect to the second embodiment, in the cutting tool 1 of the first embodiment, two preferably plate-shaped parts 14, in particular stamped parts, more particularly stamped sheet steel parts, arranged at a distance from one another can also form the tool body 7. These two parts 14 for forming the tool body 7 can be designed essentially the same and extend at a distance from one another in the direction of a geometric pivot axis x, which will be described below.

The second cutting part 5, which is movable about the pivot axis x, and preferably a ratchet drive 8 are essentially arranged between the parts 14 of the tool body 7. A facing end section of the second, pivotable handle part 3, preferably held on the tool body 7 via a pivot pin 9, also preferably engages in the space between the parts 14 of the tool body 7. A related geometric pivot axis y preferably extends parallel to the geometric pivot axis x in the joint 10 of the second cutting part 5.

The handle parts 2 and 3 can, as shown, each be provided with a handle cover 11.

In the 3 to 10 For the sole purpose of clarifying the mechanics as well as the structure and mode of operation, the front part 14 in the direction of view is not included in the drawing.

Furthermore, part of the rigid tool body 7 is a leg 13 which is also formed in one piece and further preferably of the same material as the respective part 14 and which is connected to the tool body 7 as such and the leg-like fixed cutting part 4, a cutting mouth M which is essentially U-shaped with respect to a view in the direction of the extension of the pivot axis x and has a cutting receiving opening 12 formed by the U-opening is delimited. The two sections of the parts 14 forming the leg 13 can, as also shown, be overlapped by a further cap 15 consisting, for example, of a plastic material.

The second, pivotable cutting part 5 has a knife 16 pointing in the direction of the cutting mouth M, which according to the illustrated embodiments can preferably have two knife edges 17 enclosing an obtuse angle of approximately 160° to 175° with respect to one another in the longitudinal extension of the knife 16 as a whole.

This results in a movement of the second cutting part 5 in a cutting plane E between the parts 14 (cf. 15 ).

The knife 16 is further preferably formed in one piece, possibly also of the same material, with a preferably plate-like ratchet section 18, which has a toothing 19 on the outside along an edge viewed in the circumferential direction with respect to the pivot axis x.

The pivoting mobility of the second cutting part 5 designed in this way can be limited by a stop, in particular in the 3 shown basic position of the second cutting part 5 due to the interaction of a guide pin 20 with a guide groove 21 left in the parts 14 of the tool body 7 and extending coaxially to the pivot axis x. In this stop-limited basic position, as is also preferred, the second cutting part 5, in particular its section forming the knife 16, can lie essentially completely between the partial sections of the tool body 7 forming the legs 13 in a protected hidden position.

During a pivoting movement of the second cutting part 5 starting from the basic position in a pivoting direction r, the guide pin 20 passes through the guide groove 21. Even in a pivoting end position, as for example in 9 As shown, a stop limit can be provided due to the guide pin 20 being positioned at the corresponding end of the guide groove 21.

The pivoting displacement of the second cutting part 5 in the pivoting direction r takes place in the embodiment and preferably using the ratchet drive 8. For this purpose, the handle part 3 can be provided with a feed lever 22 mounted on it so that it can pivot. This feed lever 22 engages with a feed finger 23 that is free at the end in the toothing 19 of the ratchet section 18 on the cutting part side. A pivoting displacement of the second handle part 3 in the direction of the handle part 2 which is fixed relative thereto leads to a partial pivoting displacement of the second cutting part 5 via the engagement of the feed finger 23 in the toothing 19. A locking lever 24 which is further pivotably held on the tool body 7, in particular between the parts 14, prevents, with a locking finger 25 which also engages in the toothing 19, a backward displacement of the pivoting cutting part 5 against the pivoting direction r, so that even with the pivoting return of the movable handle part 3 into a pivoting position which is at a distance from the fixed handle part 2, the second cutting part 5 remains in the previously reached pivoting position.

Both the feed lever 22 and the locking lever 24 are loaded in the usual way via springs, in particular leg springs, such as the leg spring 26 of the locking lever 24, into the engagement position with the toothing 19. The respective spring acts with one spring leg on the associated lever, while the other leg of the spring is preferably supported on the rigid tool body 7.

The feed displacement of the second cutting part 5 in the pivoting direction r takes place against the force of a return spring 27 acting on the second cutting part 5. Thus, as also shown, a leg spring can be provided in this context, which is supported with one leg on the rigid tool body 7 and acts with the other spring leg on the guide pin 20 against the pivoting direction r.

In the course of the feed displacement of the second cutting part 5 in the pivoting direction r, the knife 16 in particular passes through at least a partial section, further in particular with a free end 32 of the second cutting part 5, a first entry slot 31 that is formed between the legs of the tool body 7 that form the first, fixed cutting part 4. This entry slot 31 can, as is also preferred, be provided due to the spaced-apart course of the parts 14 as a whole (see, for example, 11 ).

Further preferably, the movable cutting part 25, and thus also the free end 32 of the second cutting part 5, does not extend outwards over the outer edge contour of the fixed cutting part 4 when viewed in the direction of the pivot axis x. Rather, in particular the free end 32 in the entry slot 31 is covered on both sides by the leg sections of the parts 14 forming the fixed cutting part 4.

The locking lever 24 can have an outwardly and thus accessible handle 28 facing away from the locking finger 25, via which the locking lever 24 can be pivoted in such a way that its locking finger 25 loses its engagement with the toothing 19. The second cutting part 5 can then pivot back from the forward position under ratcheting overrun of the feed finger 34 into the basic position according to, for example, 3 .

In addition, the pivotable handle part 3 can be provided with a locking lever 29, which in a locking position can cooperate with a locking edge 30 of the tool body 7.

The receiving part 6 is arranged so as to be pivotable at the free end 33 of the fixed cutting part 4 facing away from the handle parts 2 and 3. The pivot axis z in this case preferably extends parallel to the geometric pivot axes x and y of the joint 10 or the movable handle part 3, just as the geometric pivot axes of the previously described feed lever 22, as well as the locking lever 24 and possibly also the locking lever 29 can also preferably run parallel to the previously described geometric pivot axes.

The receiving part 6 is adjustable between a swiveled-out receiving position, as shown for example in the 1 to 3 or even in 13 28 respectively, and a holding position of a cutting material 39, for example in the form of a plastic pipe, for carrying out a cutting process. Such a holding position is for example in 5 or 30. Both the receiving position and the holding position of the receiving part 6 can, as is also preferred, be defined by a stop-limited pivoting of the receiving part. The pivoting angle of the receiving part 6 from the receiving position into the holding position can be approximately 60° to 70°.

The respective stop limit is in the 25 to 27 shown using the second embodiment. However, this can also be used in the first embodiment described.

Thus, the receiving part 6 can have a free stop shoulder 70 associated with a lower side of the first insertion leg 41, which in the receiving position of the receiving part 6 according to 25 supported in a stop-limited manner on an associated edge surface 73 of the free end 33 of the first cutting part 4.

In the pivoted-in holding position, a stop limit for the receiving part 6 can be provided by placing the receiving part 6 on the facing edge contour of the cutting mouth M. In particular, a surface 71 can be provided by a U-leg and a U-web which form the contact surfaces 45 and/or 46 on the inside, which rests against the facing receiving limit surface 72 (see 26 and 27 ) can come to the facility.

In the case of the design by only the receiving leg and the receiving part leg, only the receiving part leg can come into contact with the corresponding receiving boundary surface 72 of the cutting mouth M.

Viewed perpendicular to the cutting plane E, an overall substantially U-shaped design of the receiving contour 49 of the receiving part 6 can result, with two U-legs, a first U-leg 34 and a second U-leg 35, as well as a U-web 36 connecting the U-legs. The U-legs 34 and 35 as well as the U-web 36 delimit with their contact surfaces 44, 45 and 46 a receiving space 37 with a receiving opening 38, which in the pivoted-out receiving position is substantially aligned with the cutting receiving opening 12 of the cutting mouth M, so that a cutting material 39 to be introduced into the receiving part 6 simultaneously passes through the cutting receiving opening 12 and the receiving opening 38.

Such a U-shaped design of the receiving part 6 is in the two embodiments of the cutting tool 1 according to the 1 to 27 shown.

In the 28 to 30 In contrast, an embodiment is shown in which the receiving part 6 has an essentially L-shaped design, particularly in the region of the resulting receiving contour 49, with a U-leg 34 which, as explained in more detail below, forms an insertion leg 41, and a U-web 36 which, as also explained in more detail below, forms a contact leg 42.

The receiving part 6 can, further preferably, be designed as a plastic part, in particular a plastic injection-molded part. A one-piece and preferably uniform material design of the receiving part 6 as a whole is also preferred. The articulation of the receiving part 6 to the fixed cutting part 4 is preferably provided in the region of a transition between the first U-leg 34 and the U-web 36.

Associated with the cutting plane E, a second insertion slot 40 is formed in the receiving part 26 for the second, pivotable cutting part 5, in particular for its blade 16 (cf. 11 and 12 ).

The first U-leg 34 preferably forms a first insertion leg 41 and the U-web 36 forms a contact leg 42 extending approximately at right angles thereto. The further U-leg 35 can further form a second insertion leg 43.

In a view perpendicular to the cutting plane E, straight and flat contact surfaces 44 to 46 are obtained both in the areas of the insertion legs 41 and 43 (or in the case of an L-shape of the receiving part 6 only in the area of the insertion leg 41) and in the area of the contact leg 42. The contact surfaces 44 and 45 of the first insertion leg 41 and the contact leg 42 can be arranged in accordance with the schematic representation in 10 an acute angle α of approximately 75° to 85°, more particularly approximately 80°, to one another, while (in the case of a U-shape of the receiving part 6) an obtuse angle β of approximately 100° to 110°, more particularly approximately 105°, can be established between the contact surfaces 45 and 46 of the contact leg 42 and the second insertion leg 43.

Starting from an intersection point S1 and S2 of the imaginary extensions of the contact surfaces 44 and 45 or 45 and 46 along the contact surfaces 44 or 46 up to an opening plane O running perpendicular to the cutting plane E and touching the free ends 47 and 48 of the insertion legs 41 and 43 (cf. 10 ), different lengths a and b of the insertion legs 41 and 43 result. Thus, as is also preferred, with regard to the first insertion leg 41, a respective length a can be given which can correspond to approximately 1.5 to 2.5 times, furthermore approximately 2 times the respective length b of the second insertion leg 43. The length c of the insertion leg 42 resulting from the extension of the contact surface 45 of the contact leg 42 up to the intersection points S1 and S2 can correspond to approximately 0.75 to 0.9 times, furthermore approximately 0.8 times the length a of the first insertion leg 41.

In a further embodiment, the transitions between the contact surfaces of the insertion legs and the contact surface of the contact leg are rounded. For example, a radius R1 can be provided between the contact surface 44 of the first insertion leg 41 and the contact surface 45 of the contact leg 42, which can correspond to approximately 2.5 to 3.5 times, furthermore approximately 3 times the radius R2 between the contact surface 46 of the second insertion leg 43 and the contact surface 45 of the contact leg 42. In this case, the radius R1 between the contact surface 44 of the first insertion leg 41 and the contact surface 45 of the contact leg 42 can also correspond to approximately 0.35 to 0.6 times, furthermore approximately 0.5 times the length a of the first insertion leg 41.

With the help of the receiving part 6, cutting material 39 with different transverse dimensions, in particular pipe diameters, can be moved into the cutting position. 2 to 5 and 10 show three possible different cutting material diameters as examples. With the largest cutting material diameter shown, it can be placed on the first insertion leg 41 and the attachment leg 42 as well as the second insertion leg 43 (see also 6 ), while in the case of a material to be cut 39 with a reduced diameter, contact may only be made with the contact leg 42 and the second insertion leg 43, and furthermore only in the area of the radius section with the radius R2 resulting between the contact leg 42 and the second insertion leg 43 (cf. 7 and 8 ).

In a situation such as the 28 to 30 In the illustrated substantially L-shaped design of the receiving part 6, in the holding position when the material to be cut 39 is supported on the contact leg 42, the material to be cut 39 can also come to rest on a shoulder 74 which, in the holding position, runs substantially transversely to the contact surface 44 of the contact leg 42, is formed by the tool body 7 and delimits the cutting mouth M in the direction of the handle parts.

Also, as can be seen from the illustrations relating to the second embodiment, 13 to 27 shown and explained in more detail below, the first insertion leg 41 can be displaced relative to the second insertion leg 43 in order to adapt the distance between the insertion legs to the transverse dimension, in particular the diameter of the material to be cut 39.

The receiving part 6 is rotated together with the material to be cut 39 about the pivot axis z into the holding position, for example according to 5 , whereby in the holding position a substantial enclosure of the cutting material 39 can be achieved, whereby the first insertion leg 41 essentially closes the cutting mouth M in the direction of the cutting receiving opening 12 before the start of a cutting process. Accordingly, a secure reception of the cutting material 39 in the cutting mouth M results.

In the pivoted-in holding position of the receiving part 6, it preferably rests against the fixed cutting part 4 or the legs 13 of the parts 14 in a stop-limited manner, essentially covering the facing edge surfaces of the legs 13 with the contact surface 45 of the contact leg 42, and possibly also with the radius sections of the contact surfaces having the radii R1 and R2. In particular, the second insertion leg 43, together with the contact leg 42, forms a support for the material to be cut 39 during the cutting process, wherein a force P of the second cutting part 5 acting on the material to be cut 39 via the movable cutting part 5 or the knife 16 tends to load the receiving part 7 together with the material to be cut 39 further into the pivoted-in position (cf. 10 ).

The receiving contour 49 of the receiving part 6 is not penetrated by an outermost edge of the first cutting part 4 or the legs 13 in any pivoting position of the receiving part 6. The receiving space 37 receiving the material 39 to be cut and the cutting mouth M resulting in the area of the receiving space 37 are accordingly limited solely by the contact surfaces of the receiving part 6 in every pivoting position of the receiving part 6.

In order to be able to adapt the first insertion leg 41 in particular to the transverse dimension, in particular the diameter of the material to be cut 39, the receiving part 6 can firstly have a fixed part 50 which essentially reproduces the U-shaped receiving contour 49 and which, as described above, is pivotably connected about the axis y to the free end 33 of the fixed cutting part 44. Essentially, the fixed part 50 forms the second insertion leg 43 as well as areas of the contact leg 42 and the first insertion leg 41 (cf. 22 ).

In addition, the receiving part 6 of the second embodiment has a slide part 51 on each side of the second insertion slot 40. These slide parts 51 are preferably designed and arranged essentially symmetrically to the cutting plane E, and essentially have, with reference to a view perpendicular to the cutting plane E, a contact part leg 53 and an insertion part leg 52, the contact surface sections 54 and 55 of which are connected to one another via a rounding with the radius R1.

The slide parts 51 are accommodated in window-like cutouts 56 of the fixed part 50 provided on both sides of the cutting plane E. These cutouts 56 are dimensioned in such a way that the slide parts 51 are in a stop-limited basic position with respect to their contact legs 54 and 55 as shown in 19 preferably merge at the same level into the adjacent contact surfaces 44 and 45 of the fixed part 50. The extension length of the cutout 56 in the area of the contact leg 42 of the fixed part 50, viewed in the direction of displacement t of the slide parts 51, is selected in comparison to the extension length of the contact leg section 53 of the slide part 51, viewed in the same direction, such that over a length d (see 19 ) a linear displacement of the slide part 51 along the fixed part-side contact leg 42 can be achieved.

On the underside of the contact part leg 53, a web 57 extends further through the cutout 56 and has a slotted opening 58 through which a plate-shaped plug-in part 59 can be inserted. This plug-in part 59 underpins a shoulder 60 of the fixed part 50 running in the direction of displacement t, whereby the slide part 51 is attached to the fixed part 50 in a captive manner but can be slidably displaced in the direction of displacement t.

The slide parts 51 are further preferably only displaceable as a pair. For this purpose, the slide parts 51 can have a substantially U-shaped connecting bracket 61. Its U-legs 62 are pivotally connected to the slide parts 51 in the area of their free ends facing away from the U-web 63 in the area of webs 64 provided behind the insertion part legs 52. As can be seen from the illustration in 22 As can be seen, pins 65 secured against withdrawal can be provided for this purpose, which penetrate the end regions of the U-legs 62 as well as the webs 64 of the slide parts 51 in the region of correspondingly positioned holes. This results in a geometric pivot axis u, which preferably runs parallel to the pivot axis y of the receiving part 6 as a whole.

The connecting bracket 61 also protrudes outwards through the cutouts 56 in accordance with the arrangement described above. In the area of the U-legs 62, locking receptacles 66 are formed through open-edge recesses. In the illustrated In the embodiment shown, two such locking receptacles 66 are provided on each U-leg 62, which are designed for locking interaction with a pin-shaped locking section 67 of the fixed part 50.

As particularly evident in the illustrations in the 19 to 21 As shown, a total of at least three offset positions of the slide parts 51 and thus of the effective section of the first insertion leg 41 can result, such as a basic position according to 19 , in which the slide parts 51, with a stop limiting surface 68 formed on the back of the insertion part legs 52, come into contact with a counter surface 69 of the fixed part 50, which delimits the cutout 56. The 20 shows a first locking position in which a first locking receptacle 66 of the connecting bracket 61 is brought into a locking connection position to the locking section 67. The slide parts 51 are offset along the contact leg 42 in the displacement direction t. This results in a distance dimension e' between the mutually facing contact surfaces 44 or 54 and 46 of the second insertion leg 43, which is used to receive a relative to the cutting material 39 in 20 smaller diameter cutting material 39 is correspondingly smaller than the corresponding distance dimension e in the basic position for receiving a larger diameter cutting material 39 according to 19 . 21 again shows an alignment of the slide parts 51 for receiving a further opposite 19 diameter-reduced cutting material 39. The distance dimension e'' is further reduced accordingly due to corresponding displacement of the carriage parts 51, in which displacement position a locking of the connecting bracket 61 in the region of the second locking receptacle 66 with the locking section 67 can be achieved.

The 31 to 41 show a further embodiment of a cutting tool 1 with an adjustable receiving part 6, for example, adaptable to the diameter of the material to be cut 39.

According to the embodiment described above, here too, a slide part 51 is held on a fixed part 50 of the receiving part 6, which essentially reproduces the U-shaped receiving contour 49, on both sides of the second insertion slot 40 and preferably arranged symmetrically to the cutting plane E, which is guided linearly in a window-like cutout 56 in the region of the contact leg 42 of the fixed part 50.

Each slide part 51 forms according to the 13 to 27 shown embodiment comprises an insertion part leg 52 and a support part leg 53, wherein due to the linear displaceability of the coupled slide parts 51, an adjustment of the distance dimension e between the insertion part leg 52, which essentially forms the first insertion leg 41, and the second insertion leg 43 of the receiving part 6, which is rigid with respect to the slide part 51, or the facing shoulder 74 of the tool body 7 in the pivoted-in holding position of the receiving part 6 - when the receiving part 6 is designed with only one insertion leg - can be adapted to, for example, the diameter of the material to be cut 39.

Each slide part 51 can be held in a slidingly displaceable manner on the fixed part 50 via a plate-shaped plug-in part 59, as also explained with reference to the previously described embodiment. The plug-in part 59 passes through a slot opening 58 formed in a web 57 formed on the underside of the contact part leg 53 and underpins a shoulder 60 of the fixed part 50, in which fixed part 50 the plug-in part 59 is guided in a slot recess 80 extending in the direction of displacement t.

The underside of each plug-in part 59 facing away from the receiving space 37 is provided with a toothing 75. The tooth lines on the foot and head sides of this preferably straight toothing 75 are directed perpendicular to the cutting plane E and transversely to the direction of displacement t of the insertion part leg 52.

The toothing is designed for positive engagement in a correspondingly shaped counter toothing 76, which is formed on a component of the cutting tool 1 that is rigid with respect to the slide part 51. As a result of a positive engagement that can be achieved in this way, a displacement position assumed by the slide part 51 can be fixed.

According to the embodiment shown, such a counter-toothing 76 is preferably formed on an edge of the fixed cutting part 4 of the tool body 7 facing the receiving part 6 in the pivoted-in holding position. Accordingly, in this embodiment, the fixing position of the carriage part 51 can only be assumed after the receiving part 6 has been pivoted into this holding position and thus only in the position in which a cutting process is carried out.

In this embodiment, the position of the slide part 51 is preferably not secured before the pivoting process is completed.

In a manner that is convenient for handling, each slide part 51 is loaded into a position of contact with a cutting material 39 to be received in the receiving part 6. This means that in particular each insertion Partial legs 52 of the carriage parts 51 are pushed into a position in contact with the material to be cut 39.

This results in a corresponding loading of the slide parts 51 in the direction of a basic position in which the receiving part 6 has a smallest possible extension dimension e'' when viewed in the displacement direction t of the insertion part leg 52.

This basic position is preferably limited by a stop. For example, this can be achieved by striking the plug-in part 59 against a stop shoulder 77 formed at the end of the slot recess 80 in the direction of displacement t (cf. 41 ).

The previously described loading of the slide parts 51 in the direction of the home position is preferably achieved by arranging a spring 78, in particular a tension spring. One end of the spring 78 acts on the associated slide part 51. The other end of the spring is anchored to a section of the fixed part 50 of the receiving part 6, which is rigid with respect to the slide part 51. The spring loading is thus present on each slide part 51 in every pivoting position of the receiving part 6.

A material 39 to be cut is inserted into the receiving space 37 of the receiving part 6 in the pivoted-out receiving position, depending on the cross-sectional extent of the material 39 to be cut, possibly with sliding displacement of the insertion part legs 52 of the carriage parts 51 from the basic position against the restoring force of the springs 78.

The 39 , 40 and 41 show the reception of a cutting material 39 with different cross-sectional dimensions (diameters) and the resulting insertion part leg positions. According to the embodiment described above, distance dimensions e (for the greatest possible distance according to the illustration in 40 ), e' (for an exemplary mean distance as shown in 39 ) and e'' (for the smallest possible distance as shown in 41 ) between the contact surface section 54 of the insertion leg section 52 and the contact surface of the second insertion leg 43 which is rigid for this purpose.

Preferably, the displacement of each slide part 51 is also limited in the direction of the greatest distance from the second insertion leg 43, for example, as in 40 shown by a stop shoulder 79 formed opposite the stop shoulder 77 in the displacement direction t in the region of the slot recess 80.

The cutting material 39, which is clamped between the insertion part leg 52 and the second insertion leg 43 due to spring force and is supported on the support leg 42, is pivoted into the holding position by means of the receiving part 6, whereby when the holding position is reached, a positive locking of the displacement position of the insertion part legs 52 is automatically achieved due to the positive engagement of the receiving part-side toothing 75 in the counter toothing 76 of the tool body 7. The forces acting on the insertion part legs 52 via the knife 16 during a cutting process are diverted into the tool body 7 via the positive locking between the toothing 75 and the counter toothing 76.

Building on the fourth embodiment described above, the 42 to 52 an embodiment in which the receiving part 6, with essentially the same structure, is not pivotally connected to the free end 33 of the associated cutting part 4, but is rather arranged so as to be linearly displaceable.

This results, for example, as is also preferred, in a displacement direction s of the receiving part 6 overall in the direction of a longitudinal extension L of the cutting part 4. Furthermore, as is also preferred, this displacement direction s can be aligned in the same direction as the displacement direction t of the carriage part 51 relative to the fixed part 50.

For this purpose, for example, as shown, rib-like linear guides 81 provided on the side of the cutting part 4 can engage in correspondingly designed longitudinal grooves 82 on the fixed part 50 (cf. 51 and 52 ), whereby a stop limit of the sliding displacement is preferably provided in both displacement directions s.

Thus, the receiving part 6 can be moved to a board position according to 42 In order to carry out the cutting process, the material to be cut 39 is also pushed back together with the receiving part 6 into the (limited stop) holding position according to 43 . In accordance with the fourth embodiment, the fifth embodiment also enables the receiving part opening area to be adapted to the cross-sectional area or the diameter of the material 39 to be cut via the slide parts 51.

The spring loading (for example via a tension spring 86 according to 42 ) is also in this The embodiment is secured in a locking manner comparable to that of the previously described embodiment. The teeth 75 provided on the underside of the plug-in parts 59 interact with a counter-teeth 76 of the cutting part 4 in a locking manner, whereby the locking can already be achieved in the receiving position, but alternatively, as shown, can only be achieved during the slide movement of the receiving part 6 in the direction of the holding position.

For this purpose, with reference to a side view, for example according to 51 , compared to the previously described version, the counter-toothing 76, as well as the edge of the cutting part 4 facing the receiving space 37, are designed to run in a straight line starting from the shoulder 74 of the tool body 7, thereby essentially aligned in the displacement direction s of the receiving part 6.

During the sliding displacement of the receiving part 6 in the direction of the holding position, a ratchet-like overrun of the teeth 75 and the counter-teeth 76 can occur. This can be achieved by a corresponding angular position of the interacting teeth in the sliding-return displacement direction, while in the opposite direction, i.e. in the direction of the receiving position displaced forward relative to the receiving space 37, such a ratchet-like overrun can be prevented by the selected tooth flank alignment.

The ratchet-like overrun in one sliding direction is also achieved by an evasive displacement of one of the gear components.

Due to the tooth engagement which cannot be overrun in the direction of the receiving position, the carriage position is also secured during the cutting process.

According to the fourth embodiment, the toothing 75 can be formed on a plug-in part 59 held in the respective slide part 51. This plug-in part 59 is accommodated in the web 57 of the associated slide part 51 so as to be displaceable in a direction perpendicular to the direction of displacement s. The plug-in part 59 is spring-loaded in the direction of the positive locking position with the counter toothing 76. For this purpose, a spring 83, for example in the form of a leaf spring, can be provided, which is supported on the underside of the contact part leg 53 of the slide part 51 associated with the plug-in part 59 and acts on the plug-in part 59 (cf. 45 to 47 ).

In order to be able to move the receiving part 6 or each slide part 51 back into its forward starting position, it is necessary to release the positive engagement of the toothing 75 and the counter toothing 76. For the purpose of this release, which can be brought about by the user, a handle 84 can be provided which is held in the fixed part 50 of the receiving part 6 so as to be movable essentially perpendicular to the direction of displacement s. The handle 84 can have two handling legs 85, via the free end of which the plug-in parts 59 can be acted upon in order to raise the plug-in parts 59 against the restoring force of the springs 83. As a result of such an action, the positive engagement can be released (see 48 to 50 ).

In addition, the receiving part 6 of the fourth or fifth embodiment can also be held firmly on the cutting part 6, so that in this respect there is no relative mobility of the receiving part 6, in particular the fixed part 50, with respect to the cutting part 6. In this case, a cutting material 39 can be pushed into the receiving space from the side, for example. The receiving part opening area can be adjusted by sliding the slide parts 51, the position of which is assumed on the cutting material 39, as described above, is secured in place by the interaction of the teeth 75 on the receiving part side with the counter teeth 76 on the cutting part side. The removal of the tooth engagement to reset the slide parts 51 can be done manually in accordance with the fifth embodiment (spring-retractable counter teeth with handle).

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

A cutting tool, which is characterized in that an angular receiving part 6 is articulated to the free end 33 of one of the cutting parts 4, which can be pivoted between a pivoted-out receiving position and a pivoted-in holding position for holding a material to be cut 39 during a cutting process.

A cutting tool, which is characterized in that a receiving part 6 is attached to a free end 33 of one of the cutting parts 4, 5 and that the receiving part 6 is designed to change a receiving space 37 which is defined by the receiving part 6 itself or in cooperation with the receiving part 6 is limited by one of the cutting parts 4, 5, and is adjustable.

A cutting tool, which is characterized in that an angular receiving part 6 is attached to the free end 33 of one of the cutting parts 4, which can be displaced between an advanced receiving position and a retracted holding position for holding a material to be cut 39 during a cutting process.

A cutting tool, characterized in that the cutting tool 1 is manually operable and has a first and a second handle part 2, 3.

A cutting tool, which is characterized in that a first cutting part 4 is designed as a fixed cutting part 4 and the joint 10 is arranged on the first cutting part 4.

A cutting tool, which is characterized in that both handle parts 2, 3 are attached to the fixed cutting part 4 and the second cutting part 5 can be pivoted via a ratchet drive 8.

A cutting tool, characterized in that the receiving part 6 is hinged to the free end 33 of the fixed cutting part 4.

A cutting tool, which is characterized in that the first cutting part 4 has a first entry slot 31 into which the second cutting part 5 enters during a cutting process.

A cutting tool, which is characterized in that the receiving part 6 has a second insertion slot 40 into which the second cutting part 5 moves during a cutting process.

A cutting tool, characterized in that the receiving part 6 has a U-shaped design when viewed perpendicular to the cutting plane E.

A cutting tool, which is characterized in that the receiving part 6 has a receiving contour 49 which delimits an opening area of the U-shaped receiving part design and which is not penetrated by an outermost edge of the first cutting part 4, regardless of the pivot position.

A cutting tool, which is characterized in that the receiving part 6 has an insertion leg 41 and a contact leg 42 extending approximately at right angles thereto.

A cutting tool, which is characterized in that the insertion leg 41 in the holding position of the receiving part 6 essentially closes the cutting mouth M before the start of a cutting process.

A cutting tool, which is characterized in that the receiving part 6 has two insertion legs, a first and a second insertion leg 41, 43, which together with the contact leg 42 provide the U-shaped design of the receiving part 6.

A cutting tool characterized in that the first insertion leg 41 is displaceable to change the size of the receiving part opening area.

A cutting tool characterized in that the first insertion leg 41 is displaceable along the contact leg 42.

A cutting tool characterized in that the first insertion leg 41 is locked in different offset positions.

A cutting tool which is characterized in that a locking mechanism can be achieved between the first insertion leg 41 and the contact leg 42 which is fixed relative thereto and that this locking mechanism is present both in the receiving position and in the holding position.

A cutting tool which is characterized in that a locking mechanism can be achieved between the first insertion leg 41 and the cutting part 4 which is fixed relative thereto and that this locking mechanism is only provided in the holding position.

A cutting tool, which is characterized in that the fixed cutting part 4 has a counter toothing 76 for locking cooperation with a toothing 75 of the first insertion leg 41.

A cutting tool, which is characterized in that the toothing 75 is formed on a plug-in part 59 for the linearly displaceable mounting of the first insertion leg 41 on the contact leg 42.

A cutting tool, which is characterized in that the first insertion leg 41 is loaded via a spring 78 into a basic position in which the receiving part 6 has a smallest extension dimension e'' of the U-shaped design viewed in a displacement direction t of the first insertion leg 41.

A cutting tool which is characterized in that in the holding position a force of the second cutting part 5 acting on the material to be cut 39 loads the receiving part 6 into the pivoted-in or pushed-back position.

All disclosed features are essential to the invention (individually, but also in combination with one another). The disclosure content of the associated/attached priority documents (copy of the prior application) is hereby fully included in the disclosure of the application, also for the purpose of including features of these documents in claims of the present application. The subclaims characterize, even without the features of a referenced claim, with their features independent inventive developments of the prior art, in particular in order to make divisional applications based on these claims. The invention specified in each claim can additionally have one or more of the features provided in the above description, in particular with reference numbers and/or specified in the list of reference numbers. The invention also relates to designs in which individual features mentioned in the above description are not implemented, in particular insofar as they are clearly dispensable for the respective intended use or can be replaced by other technically equivalent means.

List of reference symbols

1

cutting tool

2

first handle part

3

second handle part

4

first cutting part

5

second cutting part

6

recording part

7

tool body

8

ratchet drive

9

pivot pin

10

joint

11

handle cover

12

cutting receiving opening

13

leg

14

Part

15

cap

16

Knife

17

knife edge

18

ratchet section

19

gearing

20

guide pin

21

guide groove

22

feed lever

23

feed finger

24

locking lever

25

locking finger

26

leg spring

27

return spring

28

handle

29

locking lever

30

locking edge

31

first entry slot

32

free end

33

free end

34

U-leg

35

U-leg

36

U-bridge

37

recording room

38

receiving opening

39

material to be cut

40

second entry slot

41

first insertion leg

42

attachment leg

43

second insertion leg

44

contact surface

45

contact surface

46

contact surface

47

free end

48

free end

49

recording contour

50

fixed part

51

slide part

52

insertion part

53

partial leg of the plant

54

contact surface section

55

contact surface section

56

neckline

57

web

58

slot opening

59

plug-in part

60

shoulder

61

connecting bracket

62

U-leg

63

U-bridge

64

web

65

Pen

66

locking mechanism

67

rest area

68

Area

69

counter surface

70

stop shoulder

71

Area

72

recording boundary surface

73

edge surface

74

shoulder

75

gearing

76

counter-toothing

77

stop shoulder

78

Feather

79

stop shoulder

80

slotted recess

81

linear guide

82

longitudinal groove

83

Feather

84

handle

85

handling legs

86

tension spring

a

length

b

length

c

length

d

length

e

distance measure

e'

distance measure

e''

distance measure

r

swivel direction

s

direction of displacement

t

direction of displacement

u

swivel axis

x

swivel axis

y

swivel axis

z

swivel axis

E

cutting plane

M

cutting jaw

O

opening level

P

Power

R1

radius

R2

radius

S1

intersection

S2

intersection

α

angle

β

angle

QUOTES INCLUDED IN THE DESCRIPTION

This list of documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions.

Cited patent literature

• US 6370780 B1 [0003]
• US 4312127 A [0003]
• US 6098291 A [0003]

Claims (13)

Cutting tool (1) with two cutting parts (4, 5), wherein the cutting parts (4, 5) are connected to one another in a joint (10) for respective movement along a cutting plane (E), wherein the cutting parts (4, 5) further delimit a cutting mouth (M) when the cutting parts (4, 5) are open and each have free ends (32, 33) facing away from the joint (10) and ends facing the joint (10), characterized in that an angular receiving part (6) is articulated to the free end (33) of one of the cutting parts (4), which can be pivoted between a pivoted-out receiving position and a pivoted-in holding position for holding a material to be cut (39) during a cutting process. Cutting tool according to the characteristics of the generic term claim 1 or after claim 1 , characterized in that a receiving part (6) is attached to a free end (33) of one of the cutting parts (4, 5) and that the receiving part (6) is adjustable in a locking manner to change a receiving space (37) which is delimited by the receiving part (6) itself or in cooperation of the receiving part (6) with one of the cutting parts (4, 5). Cutting tool according to the characteristics of the generic term claim 1 or after one of the Claims 1 or 2 , characterized in that an angular receiving part (6) is attached to the free end (33) of one of the cutting parts (4), which can be displaced between an advanced receiving position and a retracted holding position for holding a material to be cut (39) during a cutting process. Cutting tool according to one of the preceding claims, characterized in that the cutting tool (1) is manually operable and has a first and a second handle part (2, 3) and/or, preferably, that a first cutting part (4) is designed as a fixed cutting part (4) and the joint (10) is arranged on the first cutting part (4) and/or, preferably, that both handle parts (2, 3) are attached to the fixed cutting part (4) and the second cutting part (5) can be pivoted via a ratchet drive (8). cutting tool after claim 4 , characterized in that the receiving part (6) is hinged to the free end (33) of the fixed cutting part (4). Cutting tool according to one of the preceding claims, characterized in that the first cutting part (4) has a first insertion slot (31) into which the second cutting part (5) moves during a cutting process and/or, preferably, that the receiving part (6) has a second insertion slot (40) into which the second cutting part (5) moves during a cutting process. Cutting tool according to one of the preceding claims, characterized in that the receiving part (6) has a U-shaped design when viewed perpendicular to the cutting plane (E), wherein, preferably, the receiving part (6) has a receiving contour (49) which delimits an opening area of the U-shaped receiving part design and which is not penetrated by an outermost edge of the first cutting part (4) regardless of the pivot position. Cutting tool according to one of the preceding claims, characterized in that the receiving part (6) has an insertion leg (41) and a contact leg (42) extending approximately at right angles thereto, wherein, preferably, the insertion leg (41) in the holding position of the receiving part (6) essentially closes the cutting mouth (M) before the start of a cutting process, and/or, preferably, that the receiving part (6) has two insertion legs, a first and a second insertion leg (41, 43), which together with the contact leg (42) produce the U-shaped design of the receiving part (6). cutting tool after claim 8 , characterized in that the first insertion leg (41) is displaceable to change the size of the receiving part opening area and/or, preferably, that the first insertion leg (41) is displaceable along the contact leg (42), wherein, preferably, the first insertion leg (41) is retained in a locking manner in different displacement positions. cutting tool after claim 9 , characterized in that a locking mechanism can be achieved between the first insertion leg (41) and the contact leg (42) which is fixed relative thereto and that this locking mechanism is present both in the receiving position and in the holding position, and/or, preferably, that a locking mechanism can be achieved between the first insertion leg (41) and the cutting part (4) which is fixed relative thereto and that this locking mechanism is only present in the holding position. cutting tool after claim 10 , characterized in that the fixed cutting part (4) has a counter toothing (76) for locking interaction with a toothing (75) of the first insertion leg (41) and/or, preferably, that the toothing (75) is attached to a plug-in part (59) for linearly displaceable holding connection of the first insertion leg (41) to the contact leg (42). Cutting tool according to one of the Claims 8 until 11 , characterized in that the first insertion leg (41) is loaded via a spring (78) into a basic position in which the receiving part (6) has a smallest extension dimension (e'') of the U-shaped design viewed in a displacement direction (t) of the first insertion leg (41). Cutting tool according to one of the preceding claims, characterized in that in the holding position, a force of the second cutting part (5) acting on the material to be cut (39) loads the receiving part (6) into the pivoted-in or pushed-back position.

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