Cutting device, in particular pipe cutting device

Abstract

The invention is based on a cutting device (10a; 10b; 10d), in particular a pipe cutting device, with at least one handle unit (12a, 12b; 12d), with at least one upper slide unit (14a; 14b; 14d) and at least one lower slide unit (16a; 16b; 16d), wherein the upper slide unit (14a; 14b; 14b) has a cutting element (18a; 18b; 18d) and the lower slide unit (16a; 16b; 16d) has at least one holding unit (20a; 20b, 20d), wherein the upper slide unit (14a; 14b, 14d) is mounted so as to be movable relative to the lower slide unit (16a; 16b; 16d), and with at least one locking unit (22a; 22b; 22d), which is adapted to lock the upper carriage unit (14a; 14b; 14d) to the lower carriage unit (16a; 16b; 16d). It is proposed that the locking unit (22a; 22b; 22d) has at least one latching element (24a; 24b; 24d) by means of which the locking of the locking unit (22a; 22b; 22d) takes place.

Description

Prior ArtA cutting device, in particular a pipe cutting device, having at least one handle unit, having at least one upper slide unit and at least one lower slide unit, wherein the upper slide unit has a cutting element and the lower slide unit has at least one holding unit, wherein the upper slide unit is designed movably mounted with respect to the lower slide unit, and having at least one locking unit which is designed to lock the upper slide unit to the lower slide unit has already been proposed.Disclosure of the InventionThe invention is based on a cutting device, in particular a pipe cutting device, having at least one handle unit, having at least one upper slide unit and at least one lower slide unit, wherein the upper slide unit has a cutting element and the lower slide unit has at least one holding unit, wherein the upper slide unit is designed to be mounted movably with respect to the lower slide unit, and having at least one locking unit which is designed to lock the upper slide unit to the lower slide unit.It is proposed that the locking unit has at least one latching element, by means of which the locking of the locking unit takes place.A "cutting device" is to be understood in particular as a device which is configured to separate a cylindrical component, in particular a tube, into two sections. The cutting device is preferably configured to completely separate a cylindrical component, in particular a tube, into two sections. The cutting device is preferably configured to separate a cylindrical component, in particular a tube, at least partially automatically, in particular automatically, into two sections. Preferably, the cutting device is configured to be taken up by a user. The cutting device is held manually, in particular, during operation. "Established" is to be understood in particular as specially programmed, designed and / or equipped. The fact that an object is set up for a specific function is to be understood in particular to mean that the object fulfills and / or executes this specific function in at least one application state and / or operating state. Preferably, the cutting device comprises a handle unit. A "handle unit" is to be understood in particular as a unit by means of which a user holds the cutting device in an operating state. The handle unit is preferably designed to be adapted to the requirements of the user. In particular, it is conceivable for the handle unit to have a non-slip surface in a hand region of the handle unit, by means of which the user safety is increased. Preferably, the handle unit at least partially forms a housing of the cutting device. Preferably, the handle unit receives the upper carriage unit and the lower carriage unit. Particularly preferably, the handle unit accommodates all the components of the cutting device. The handle unit is preferably formed in multiple parts. The handle unit is preferably made of a plastic. Alternatively, it is conceivable that the handle unit is formed from a metallic material and / or a plurality of different materials. Furthermore, any other material for the handle unit that appears expedient to a person skilled in the art is conceivable.An "upper slide unit" is to be understood in particular as a unit which has a receptacle for a cutting element and is formed movably mounted with respect to a rotating element. Preferably, the cutting element is configured connected to the upper carriage unit via a rotational axis. A "cutting element" is to be understood in particular as an element which is configured to cut a cylindrical component, in particular a tube. Preferably, the cutting element is movably mounted in a receptacle of the upper carriage unit. The expression "movably mounted" is intended here to define, in particular, a mounting of an element, wherein the element, in particular decoupled from an elastic deformation of the element, has a possibility of movement about at least one axis by an angle greater than 270°, preferably greater than 315° and particularly preferably 360° and / or a possibility of movement along at least one path greater than 10 mm, preferably greater than 15 mm and particularly preferably greater than 30 mm. Preferably, the cutting element is rotatably mounted in a receptacle of the upper carriage unit. Preferably, the cutting element is designed as a rotatably mounted blade. The expression "rotatably mounted" is intended here to define in particular a mounting of an element, wherein the element, in particular decoupled from an elastic deformation of the element, has a possibility of movement about at least one axis of 360°. Alternatively, any other configuration of the cutting element that appears expedient to a person skilled in the art is conceivable. Preferably, the cutting element is designed as a circular blade. The cutting element is preferably configured to cut a cylindrical component, in particular a tube, on the lateral surface of the cylindrical component by a rotation of the cutting element about the axis of rotation of the cylindrical component, in particular a tube.A "lower slide unit" is to be understood in particular as a unit which is configured to provide a receptacle for a cylindrical component, in particular a tube. Preferably, the lower carriage unit is formed connected to a rotating element. A "rotary element" is to be understood in particular as an element which is configured to provide a rotary movement of the cutting element about an axis of rotation of the cylindrical component, in particular a tube. Preferably, the rotary element has an annular cross section in a cross section parallel to a main direction of extension of the rotary element. Preferably, the circular ring shape of the rotating element extends over at least one radius of preferably at most 270°, preferably at most 300° and particularly preferably at most 315°. Preferably, the inner radius of the circular ring shape of the rotating element is larger than a radius of the cylindrical component, in particular tube.Alternatively, any other embodiment of the rotary element that appears expedient to a person skilled in the art is conceivable. Preferably, the rotary element is driven in rotation by a drive unit directly via a toothing. Alternatively, it is conceivable that the rotary element is indirectly driven by a drive unit. A "drive unit" is to be understood in particular as a unit which converts an electrical energy into a kinetic energy. Preferably, the drive unit is arranged in a handle unit. The drive unit is preferably supplied with an electrical energy by means of a rechargeable battery and / or a power plug. Preferably, the lower carriage unit has a holding unit. A "holding unit" is to be understood in particular as a unit which is configured to receive a cylindrical component, in particular a tube. The holding unit is preferably configured to receive a cylindrical component, in particular a tube, rotatably mounted. The holding unit preferably has at least one roller, preferably at least two rollers. Preferably, the rollers are rotatably mounted. Preferably, the rollers are configured to rotatably support a cylindrical component, in particular a tube. Preferably, the cylindrical component, in particular tube, is accommodated by the rollers. A "main extension direction" of an object is to be understood here in particular as a direction which runs parallel to a longest edge of a smallest geometric cuboid which just still completely encloses the object.A "locking unit" is to be understood in particular as a mechanical unit which is configured to fix movable parts. Preferably, a locking force is transmitted from a frictional engagement element to the upper slide unit by the locking unit. Preferably, the locking unit is configured to lock the upper carriage unit to the lower carriage unit. The locking unit is preferably formed in multiple parts. The locking unit is preferably configured to center a cylindrical component, in particular a tube, in a cutting device in a machining step. In this context, a "locking" is to be understood to mean, in particular, the mechanical process of fixing movable parts. The locking unit preferably has at least one latching element. A "latching element" is to be understood here in particular as an element which, in a locking process, enters into a force fit and / or form fit with a further element, in particular between at least one recess of the latching element and at least one bulge of a further element. In particular, it is conceivable that the further element is elastically deflected during a locking process in order to subsequently latch in a corresponding recess of the latching element by an internal clamping force. The latching element is preferably arranged on an upper carriage unit. The latching element is preferably arranged in a vicinity of the upper carriage unit. The latching element is preferably arranged in a vicinity of the lower carriage unit. In particular, it is conceivable for the latching element to be configured to be connected to the upper carriage unit or the lower carriage unit. It is furthermore conceivable for the upper carriage unit or the lower carriage unit to have the latching element. Preferably, in a locking step, a force-fit and / or form-fit connection is generated stepwise between a latching element and a further element in order to perform a locking of the upper carriage unit to a lower carriage unit. Preferably, the latching element is connected to a further element in a force-fit and / or form-fit manner in an operating step. By "connected in a force-fit and / or form-fit manner" is herein in particular a releasable connection to be understood, wherein a holding force between two components is preferably transmitted by a geometric engagement of the components in one another and / or a frictional force between the components. Preferably, a stepwise linear movement is transmitted to the upper slide unit via the latching element. Preferably, a stepwise linear movement is transmitted from a further element to the latching element.The configuration of the cutting device according to the invention makes it possible to provide advantageous properties with regard to automatic locking of a cutting device. In particular, the embodiment of the cutting device according to the invention makes it possible to achieve a cutting device with a simplified construction. In particular, advantageous properties with regard to uniform cutting of a cylindrical component can be achieved. In particular, installed cylindrical components, in particular pipes, can be cut. In this way, in particular advantageous properties with regard to ease of use can be achieved.Furthermore, it is proposed that the locking unit has at least one centrifugal force element which is configured to latch into the latching element. Preferably, the centrifugal element is formed connected to the upper carriage unit. The fact that at least one first element is "connected" to at least one further element is to be understood in particular to mean that the first element is advantageously connected to the further element via at least one frictional connection and / or at least one positive connection, for example via a riveting and / or latching connection and / or a tongue-and-groove connection and / or a clamping connection and / or a further connection appearing expedient to the person skilled in the art, and / or is connected to the further element in a materially bonded manner, for example by a welding process, an adhesion process, an injection molding process and / or another process appearing expedient to the person skilled in the art. Alternatively, it is conceivable for the centrifugal force element to be arranged in a vicinity of the upper carriage unit. It is also conceivable for the centrifugal element to be formed independently of an upper slide unit. Particularly preferably, the centrifugal force element is formed integrally, in particular integrally, with the upper slide unit. By "one piece" is intended to be understood in particular as being connected in a materially integral manner, such as for example by a welding process and / or adhesive bonding process etc., and particularly advantageously integrally formed, such as by production from a casting and / or by production in a single- or multicomponent injection molding process. Advantageously, integral should also be understood as one piece. By "one-piece" is meant in particular formed in one piece. This one piece is preferably produced from an individual blank, a compound and / or a casting, particularly preferably in an injection molding process, in particular a single- and / or multi-component injection molding process. The centrifugal force element is preferably configured to latch into a latching element by a centrifugal force arising from the rotational movement of the rotary element. Preferably, the centrifugal element is movably supported to form a rotary element. Preferably, the upper carriage unit is arranged to be freely movable with respect to a lower carriage unit when the rotary element does not have a rotational movement. The upper slide unit is preferably locked to form a lower slide unit as soon as the centrifugal force arising due to the rotational movement of the rotary element locks the centrifugal element into a latching element. Particularly preferably, the latching element is designed as a toothed rack. This makes it possible to provide advantageous properties with regard to automatic locking of a cutting device. In particular, the embodiment of the cutting device according to the invention makes it possible to achieve a cutting device with a simplified construction.According to a further embodiment, it is proposed that the latching element is designed as a toothed disk element, into which the centrifugal force element latches when locked. The toothed disk element is preferably formed fixedly connected to a lower carriage unit. In particular, it is conceivable for the toothed disk element to be formed integrally, in particular integrally, connected to the lower carriage unit. Preferably, the toothed disk element has a circular shape in a cross section at least substantially parallel to a main extension direction of the toothed disk element. Preferably, the toothed disk element has a toothing at least partially, preferably at least to a large extent and particularly preferably completely, on an outer radius of the circular shape. The toothing is preferably designed to correspond to a centrifugal element. A "main extension direction" of an object is to be understood here in particular as a direction which runs parallel to a longest edge of a smallest geometric cuboid which just still completely encloses the object. Preferably, the toothed disk element is arranged on a pivot point of the upper carriage unit and of the lower carriage unit. The centrifugal force element is preferably configured to engage in a toothed disk element by centrifugal force arising from the rotational movement of the rotary element. The upper slide unit is preferably locked to form a lower slide unit as soon as the centrifugal force arising from the rotational movement of the rotary element locks the centrifugal force element into the toothed disk element. Preferably, the centrifugal element is mounted rotatably movable with respect to an upper slide unit. Preferably, the upper carriage unit is configured connected to the lower carriage unit via a rotation axis. Alternatively, any other connection, which appears expedient to a person skilled in the art, between the upper carriage unit and the lower carriage unit is conceivable. This makes it possible to provide advantageous properties with regard to automatic locking of a cutting device via a toothed disk element.According to a further embodiment, it is proposed that the centrifugal element has a pivot point with the upper carriage unit, via which the centrifugal element is pivotably mounted. Preferably, the centrifugal element is formed connected to the upper carriage unit via a pivot point. Preferably, the centrifugal element is arranged in a vicinity of the axis of rotation between the upper carriage unit and the lower carriage unit. In this context, a "close range" is to be understood to mean, in particular, a spatial, in particular spherical, region which preferably extends with a radius of at most 20 mm, preferably at most 15 mm and particularly preferably at most 10 mm around a geometric center point of the machining region. Preferably, the pivot point of the centrifugal element and the upper carriage unit is arranged between the cutting element and the pivot axis between the upper carriage unit and the lower carriage unit. Preferably, the pivot point is configured to latch the centrifugal force element rotationally into a ratchet element upon an action of a centrifugal force. Preferably, the engagement of the centrifugal element about the pivot point in the engagement element locks an upper slide unit to a lower slide unit. This makes it possible to provide advantageous properties with regard to automatic locking of a cutting device via a centrifugal element.It is furthermore proposed that the centrifugal force element is formed integrally, in particular integrally, with the upper slide unit. Preferably, the centrifugal element is formed fixedly connected to an upper slide unit. Preferably, the centrifugal element is arranged at a coupling point between the upper carriage unit and the lower carriage unit. Preferably, the centrifugal element encloses the latching element. Particularly preferably, the centrifugal element has a recess through which the latching element is guided. Preferably, the upper carriage unit and the lower carriage unit are movably connected to one another via the coupling point. Particularly preferably, the centrifugal element and the latching element are movably connected to one another via the coupling point. Preferably, the centrifugal force element is configured to engage in a catch element upon the action of a centrifugal force. Preferably, the lower carriage unit has the latching element. Particularly preferably, the latching element is formed integrally, in particular integrally, with the lower carriage unit. Alternatively, it is conceivable for the upper carriage unit to have the latching element. Alternatively, it is conceivable for the lower carriage unit to have the centrifugal element. This makes it possible to provide advantageous properties with regard to automatic locking of a cutting device via a centrifugal element. In particular, the embodiment of the cutting device according to the invention makes it possible to achieve a cutting device with a simplified construction.According to a further embodiment, it is proposed that the locking unit has at least one lever element which is configured to actuate the latching element. Preferably, a movement is transmitted from a user to the lever element. The lever element is preferably configured to convert a lever movement of the lever element via a lever pivot point into a linear movement. In particular, it is conceivable for the lever element to be configured to transfer a lever movement of the lever element via a lever pivot point into a movement that appears expedient to a person skilled in the art. In this context, a "lever element" is to be understood to mean, in particular, an element by means of which a user can generate a lever movement. Preferably, the lever element has a lever pivot point. Preferably, the lever pivot point is designed as an axis. Preferably, the lever element has a lever pivot point with a handle unit. Preferably, the lever element is arranged in a vicinity of the lower carriage unit. Preferably, the lever element is movably mounted to form a handle unit. The lever element is preferably configured to convert a cyclical lever movement into a stepwise linear movement. Preferably, the lever element is mechanically actuated by a user. The lever element is preferably configured to cyclically record a lever movement of a user. In particular, it is conceivable for the lever element to have a spring element which is configured to reset the lever element into an initial position with a spring force. A "spring element" is to be understood in particular as a macroscopic element which has at least one extent which, in a normal operating state, can be changed elastically by at least 10%, in particular by at least 20%, preferably by at least 30% and particularly advantageously by at least 50%, and which in particular generates a counterforce which is dependent on a change in the extent and is preferably proportional to the change and which counteracts the change. An "extent" of an element is to be understood in particular as a maximum distance between two points of a perpendicular projection of the element onto a plane. This makes it possible to provide advantageous properties with regard to automatic locking of a cutting device via a lever element. In particular, the embodiment of the cutting device according to the invention makes it possible to achieve a cutting device with a simplified construction.According to a further embodiment, it is proposed that the locking device has at least one transmission element which transmits a force from the lever element to the catch element. The lever element is preferably configured to transfer a lever movement of the lever element via a lever pivot point into a linear movement of the transmission element. A "transmission element" is to be understood in particular as an element which is configured to absorb a movement of the lever element and to transmit it to a further element. The transmission element is preferably configured to absorb a movement from the lever element and to transmit it to a latching element. It is furthermore conceivable for the locking unit to have a latching lever element which latches into a latching element in a locking step. Alternatively, it is conceivable that the transmission element is configured to absorb a movement from the lever element and to transmit it to a latching lever element. In particular, it is conceivable for the lever element to be configured to transfer a lever movement of the lever element via a lever pivot point into a movement that appears expedient to a person skilled in the art. Preferably, a movement of the lever element is transmitted to the transmission element via the lever pivot point. Preferably, the transmission element latches into a latching element. Preferably, the transmission element is configured to transmit a movement of the upper carriage unit in the direction of the lower carriage unit via the lever element. The transmission element preferably has a toothing. The latching element preferably has a recess. Preferably, the toothing of the transmission element and the recess of the latching element are designed to correspond. In particular, it is conceivable for the lever element to be formed in multiple parts. Furthermore, the transmission element has a first partial transmission element and a further partial transmission element. In particular, it is conceivable that a movement of the lever element is transmitted in a locking step to a first partial transmission element and from a first partial transmission element to a further partial transmission element. In particular, it is conceivable for the locking unit to have a latching lever element which latches into a latching element in a locking step. The transmission element is preferably configured to transmit a movement to the latching lever element. It is furthermore conceivable that in a locking step a movement is transmitted from a further partial transmission element to the locking lever element. Preferably, the lever element and the transmission element have a connection point. The connecting point is preferably designed as a mechanical connection. Preferably, the lever element and the transmission element are configured to contact at the connection point. This makes it possible to provide advantageous properties with regard to automatic locking of a cutting device via a transmission element. In particular, the embodiment of the cutting device according to the invention makes it possible to achieve a cutting device with a simplified construction.According to a further embodiment, it is proposed that the upper carriage unit and the lower carriage unit have a common axis of rotation. Preferably, the lower carriage unit and the upper carriage unit are configured movably connected via a rotation axis. Preferably, the upper carriage unit is mounted rotatably movably with respect to a lower carriage unit by means of the axis of rotation. Preferably, the upper carriage unit and the lower carriage unit are configured to be connected to one another via a mechanical rotational axis. Alternatively, any other configuration of the axis of rotation that appears expedient to a person skilled in the art is conceivable. Preferably, the rotation axis is arranged at an end of the upper carriage unit opposite the cutting element. Preferably, the rotation axis is arranged at an end of the lower carriage unit opposite the holding element. Preferably, the axis of rotation has a circular cross section in a cross section at least substantially perpendicular to a main direction of extension of the axis of rotation. Preferably, the rotation axis serves as a pivot bearing of the upper carriage unit to a lower carriage unit. The expression "substantially perpendicular" is intended here in particular to define an orientation of a direction relative to a reference direction, wherein the direction and the reference direction, in particular viewed in a projection plane, enclose an angle of 90° and the angle has a maximum deviation of in particular less than 8°, advantageously less than 5° and particularly advantageously less than 2°. In this way, in particular advantageous properties with regard to a construction can be provided.It is furthermore proposed that the locking unit has a releasing unit which is configured to decouple the ratchet element. The solution unit is preferably configured to decouple a coupling between the latching element and the transmission element or between the latching element and the latching lever element depending on a movement of the lever element. Preferably, the releasing unit is configured to receive a movement from the lever element and transmit it to the rotating element. The releasing unit is preferably configured to release a locking of the upper carriage unit to a lower carriage unit. Preferably, the solution unit is configured to set an upper carriage unit in a neutral position by transmitting the movement of the lever element to the solution unit. The solution unit is preferably embodied in multiple parts. The solution unit preferably has a plurality of joint elements. The joint elements are preferably configured to transmit a movement mechanically to the rotary element. Preferably, the releasing unit has a connection point with the rotating element. Preferably, the release unit has a wedge shape at the connection point, which locks into at least one toothing of the rotary element. Preferably, a movement is transmitted to the rotating element via the connection point. Preferably, a stepwise movement is transmitted to the rotating element via the connection point. Preferably, the releasing unit is configured to release a connection point between the rotating element and the releasing unit by an actuation of the lever element. Preferably, the solution unit is arranged movably supported with respect to a handle unit. The solution unit is preferably configured connected to the handle unit via a plurality of axes of rotation. In particular, it is conceivable that each individual part of the solution unit is movably mounted to the handle unit via a rotational axis. In this way, in particular advantageous properties with regard to a release of the locking can be provided. In particular, advantageous properties with regard to a mechanical release of the locking can be provided.Furthermore, it is proposed that the catch element is formed integrally, in particular integrally, with the lower slide unit. Preferably, the lower carriage unit has the latching element. The latching element is preferably designed as a toothing on the lower slide unit. The latching element is preferably configured connected to the lower carriage unit. The latching element is preferably arranged in a vicinity of the pivot point between the lower carriage unit and the upper carriage unit. The latching element is preferably designed as an elongate component. In particular, an elongate component is to be understood as a component which, in a designed state, has a height extent which is many times greater than a longitudinal extent and a transverse extent of the component. Alternatively, it is conceivable for the latching element to have a different shape that appears expedient to a person skilled in the art. In this way, in particular advantageous properties with regard to a construction can be provided.The invention furthermore relates to a method for operating a cutting device according to the invention, in particular a pipe cutting device. It is proposed that in a locking step, the upper slide unit is locked to the lower slide unit by a locking element. In this context, a locking step is to be understood to mean, in particular, a method step in which the upper carriage unit is locked to form a lower carriage unit by a locking element. Preferably, in the locking step, the upper carriage unit is firmly locked to a lower carriage unit by the locking element. Preferably, in the locking step, a cylindrical component, in particular a tube, is fixed between the lower slide unit and the upper slide unit by the latching element. Preferably, in the locking step, the upper carriage unit is variably fixed to the lower carriage unit. Preferably, in the locking step, the upper slide unit is locked by the locking element depending on a diameter of the cylindrical component to form a lower slide unit. Preferably, in the locking step, a cylindrical component, in particular a tube, is fixed between a cutting element of the upper slide unit and the holding element of the lower slide unit. Preferably, in the locking step, a cylindrical component, in particular a tube, is fixed between a cutting element of the upper carriage unit and the holding element of the lower carriage unit so as to be mounted so as to be movable about an axis of rotation. Preferably, in a locking step, the upper carriage unit is locked to the lower carriage unit in a time-limited manner by the locking element. Preferably, in a locking step, a force-fit and / or form-fit connection is generated stepwise between a latching element and a centrifugal element and / or a transmission element in order to perform a locking of the upper carriage unit to a lower carriage unit. Preferably, the upper carriage unit is moved in the direction of a lower carriage unit by the latching element. Preferably, in the locking step, a mechanical force is transmitted to the upper slide unit via the latching element. In this way, in particular advantageous properties with regard to uniform cutting of a cylindrical component can be achieved. In particular, advantageous properties with regard to a locking in a locking step can be provided.Furthermore, it is proposed that in a processing step the locking of the component, in particular tube, between the upper slide unit and the lower slide unit is maintained by engaging in the locking element. Preferably, in a processing step, a centrifugal element is permanently snapped into the latching element. Alternatively, it is conceivable that in a processing step a transmission element is permanently snapped into the latching element. Preferably, in a processing step, a further element is permanently latched in the latching element. Preferably, the latching element is connected to a further element in a force-fit and / or form-fit manner in a machining step. Preferably, in the processing step, a force-fit and / or form-fit connection is maintained between the latching element and a further element, so that the locking of the upper carriage unit to a lower carriage unit is maintained. Preferably, in a machining step, the frictional and / or positive connection is maintained by the rotational movement of the rotary element and the centrifugal force generated thereby is maintained by the latching element and the centrifugal element. Alternatively, it is conceivable that in a machining step the force-fit and / or form-fit connection between the transmission element is maintained. Preferably, in the machining step, locking is maintained throughout the entire duration of the machining. In this context, a "processing step" is to be understood to mean, in particular, a method step in which the cutting device divides a cylindrical component, in particular a tube, into two sections. Preferably, in the processing step, a cutting element of the upper slide unit is guided in a rotating manner on a lateral surface of the cylindrical component, in particular tube, around the cylindrical component, in particular tube. In this way, in particular advantageous properties with regard to uniform cutting of a cylindrical component can be achieved.It is further proposed that in a locking step the centrifugal force element latches into the latching element in stages by a centrifugal force arising as a result of the rotational movement of the rotary element. Preferably, in the locking step, centrifugal force is generated by the rotational movement of the rotary element. Preferably, in a locking step, a centrifugal force is generated upon a start of the rotational movement of the rotary element. Preferably, the centrifugal force becomes larger in a locking step as the rotational speed of the rotary member increases. Preferably, in a locking step, the centrifugal force is applied to all components which are connected to the rotary element. Preferably, in a locking step, the centrifugal force acts on the centrifugal element. Preferably, in a locking step, the centrifugal element latches into the latching element by the centrifugal force. Preferably, in the locking step, the upper slide unit is locked to form a lower slide unit by the centrifugal force element being latched into the latching element. Preferably, the centrifugal force acts on an upper slide unit in a locking step. Preferably, the centrifugal force acting on the upper carriage unit is transmitted to the centrifugal element in a locking step. Alternatively, it is conceivable that the centrifugal element is formed independently of an upper slide unit and the centrifugal force acts directly on the centrifugal element. Preferably, the engagement of the centrifugal element in the engagement element is maintained as long as the rotary element has a rotational movement. Preferably, in a locking step, before a rotational movement of the rotating element, the upper slide unit is freely moved in the direction of the lower slide unit. Preferably, a toothing of the centrifugal force element latches in a step-wise manner into a toothing of the latching element in a locking step. Preferably, in a locking step, the steps of the locking are defined by the tooth arrangements of the latching element. In particular, any other method and device that appears expedient to a person skilled in the art for latching a centrifugal force element into a latching element is conceivable. In this way, in particular advantageous properties with regard to a locking in a locking step can be provided.According to a further embodiment, it is proposed that in a locking step the lever element actuates a transmission element in order to latch in a detent element in stages. Preferably, in the locking step, a movement of the lever element is transmitted to the transmission element. Preferably, in the locking step, a lever movement of the lever element is converted via a lever pivot point into a linear movement of the transmission element. In particular, it is conceivable that in the locking step a lever movement of the lever element is transferred via a lever pivot point into a movement that appears expedient to a person skilled in the art. Preferably, in the locking step, a movement of the lever element is transmitted to the transmission element via a lever pivot point. Preferably, the transmission element latches into a latching element in the locking step. Preferably, in the locking step, a movement of the upper slide unit in the direction of the lower slide unit is carried out via the lever element. Preferably, in the locking step, at least one toothing of the transmission element latches into at least one recess of the latching element. Preferably, the toothing of the transmission element and the recess of the latching element are designed to correspond. Preferably, the toothing of the transmission element and the recess of the latching element are connected to one another in a force-fit and / or form-fit manner in a locking step. In particular, it is conceivable for the lever element to be formed in multiple parts. Furthermore, the transmission element has a first partial transmission element and a further partial transmission element. In particular, it is conceivable that a movement of the lever element is transmitted in a locking step to a first partial transmission element and from a first partial transmission element to a further partial transmission element. In particular, it is conceivable for the locking unit to have a latching lever element which latches into a latching element in a locking step. Preferably, in a locking step, a movement is transmitted from a lever element to the transmission element via a lever pivot point. Preferably, in the locking step, a movement is transmitted from the transmission element to the locking lever element. It is furthermore conceivable that in a locking step a movement is transmitted from a further partial transmission element to the locking lever element. Preferably, in the locking step, the locking lever element latches into a latching element by the transmitted movement. Preferably, in the locking step, a force-fit and / or form-fit connection is produced between the latching lever element and the latching element by the transmitted movement. In particular, it is conceivable that the upper carriage unit is locked to form a lower carriage unit by the force-fit and / or form-fit connection between the latching lever element and the latching element. In this way, in particular advantageous properties with regard to a locking in a locking step can be provided.It is furthermore proposed that in a releasing step the engagement of the centrifugal force element decouples as soon as the centrifugal force arising due to the rotational movement of the rotary element decreases. Preferably, in a releasing step, the engagement of the centrifugal element in a latching element is decoupled as soon as the centrifugal force arising due to the rotational movement of the rotary element decreases. Preferably, in the releasing step, a force-fit and / or form-fit connection between a latching element and a centrifugal element is decoupled as soon as the centrifugal force arising as a result of the rotational movement of the rotary element decreases. Preferably, the centrifugal force decreases with a reduction in the rotational speed of the rotary element. In this context, a "solution step" is to be understood to mean, in particular, a method step in which the upper carriage unit is released from being locked in relation to a lower carriage unit and the cutting device is reset to an initial state. In the releasing step, locking of the centrifugal element into a locking element is preferably decoupled as soon as the centrifugal element is free from an action of centrifugal force. Preferably, a centrifugal force is reduced in the dissolving step. Particularly preferably, in a solution step, centrifugal force is reduced by reducing the rotational speed of the rotary element. In this way, in particular advantageous properties with regard to a release of the locking can be provided. In particular, advantageous properties with regard to automatic release of the locking can be provided.According to a further embodiment, it is proposed that in a releasing step, the latching into a latching element is decoupled by means of the releasing unit. In the releasing step, a movement is preferably transferred to the releasing unit by the lever element, as a result of which the latching of a transmission element and / or latching lever element into the latching element is decoupled. Preferably, in the releasing step, the engagement of a transmission element and / or latching lever element in the latching element is decoupled via a mechanical return of the coupling. Preferably, in the releasing step, a locking of the upper carriage unit to a lower carriage unit is released. Preferably, in the releasing step, a change is made between a locking step and a releasing step via a mechanical coupling of the lever element. Preferably, in the releasing step, a movement of the lever member is transmitted to the releasing unit, whereby the releasing unit transmits a movement to the rotating member. Preferably, in the releasing step, an upper carriage unit is moved into a neutral position by a transmission of the movement of the lever element to the releasing unit. Preferably, in the releasing step, a movement is transmitted mechanically to the rotary element via a plurality of joint elements of the releasing unit. In this way, in particular advantageous properties with regard to a release of the locking can be provided. In particular, advantageous properties with regard to a mechanical release of the locking can be provided.The cutting device according to the invention is not intended to be limited to the application and embodiment described above. In particular, in order to fulfil a mode of operation described herein, the cutting device according to the invention can have a number which differs from a number of individual elements, components and units and method steps mentioned herein. In addition, in the value ranges specified in this disclosure, values lying within the stated limits should also be considered as disclosed and usable as desired.DRAWINGFurther advantages are evident from the following description of the drawings. Twelve exemplary embodiments of the invention are shown in the drawing. The drawings, specification and claims contain numerous features in combination. The skilled person will expediently also consider the features individually and summarize them to form meaningful further combinations.The following are shown: FIG. 1 shows a cutting device according to the invention in a schematic illustration, FIG. 2 shows a schematic flow diagram of a method for operating a cutting device according to the invention, FIG. 3 shows an alternative embodiment of the locking unit in a schematic illustration, FIG. 4 shows an alternative embodiment of a schematic flow diagram of a method for operating a cutting device, FIG. 5 shows an alternative embodiment of the locking unit in a schematic illustration, FIG. 6 shows an alternative embodiment of the locking unit in a schematic illustration, FIG. 7 shows an alternative embodiment of the locking unit in a schematic illustration, FIG. 8 shows an alternative embodiment of the locking unit in a schematic illustration, FIG. 9 shows an alternative embodiment of the locking unit in a schematic illustration, FIG. 10 shows an alternative embodiment of the locking unit in a schematic illustration, FIG. 11 shows an alternative embodiment of the locking unit in a schematic illustration, FIG. 12 shows an alternative embodiment of the locking unit in a schematic illustration, FIG. 13 shows an alternative embodiment of the locking unit in a schematic illustration, FIG. 14 shows an alternative embodiment of the locking unit in a schematic illustration, and FIG. 15 shows an alternative embodiment of the locking unit in a schematic illustration.DESCRIPTION OF THE EMBODIMENTSFIG. 1 shows a cutting device 10 a, in particular a pipe cutting device. The cutting device 10a has a handle unit 12a. The cutting device 10 ais configured to completely separate a cylindrical component, in particular a tube, into two sections. The cutting device 10 ais configured to separate a cylindrical component, in particular a tube, at least partially automatically, in particular automatically, into two sections. The cutting device 10 ais configured to be picked up by a user. The cutting device 10a is hand held in operation. The handle unit 12a is designed to be adapted to the requirements of the user. In particular, it is conceivable for the handle unit 12 ato have a non-slip surface in a hand region of the handle unit 12 a, by means of which the user safety is increased. The handle unit 12 aconstitutes at least partially a housing of the cutting device 10 a. The handle unit 12a receives an upper carriage unit 14a and a lower carriage unit 16a. The handle unit 12a receives all the components of the cutting device 10a. The handle unit 12 ais embodied in multiple parts. The handle unit 12 ais formed from a plastic. Alternatively, it is conceivable that the handle unit 12 ais formed from a metallic material and / or a plurality of different materials. Furthermore, any other material that appears expedient to a person skilled in the art is conceivable for the handle unit 12 a.The cutter 10a has the upper carriage unit 14a. The upper carriage unit 14a has a cutting element 18a. The cutting element 18 ais configured connected to the upper carriage unit 14 avia a rotational axis. The cutting element 18 ais movably mounted in a receptacle of the upper carriage unit 14 a. The cutting element 18 ais rotatably mounted in a receptacle of the upper carriage unit 14 a. The cutting element 18 ais designed as a rotatably mounted blade. Alternatively, any other configuration of the cutting element 18 a, which appears expedient to a person skilled in the art, is conceivable. The cutting element 18a is formed as a circular blade. The cutting element 18 ais configured to cut a cylindrical component, in particular a tube, on the lateral surface of the cylindrical component by a rotation of the cutting element 18 aabout the axis of rotation of the cylindrical component, in particular a tube.The cutter 10a has the lower carriage unit 16a. The lower carriage unit 16a has a holding unit 20a. The upper carriage unit 14a is movably mounted against the lower carriage unit 16a. The lower carriage unit 16a is formed connected to a rotary member 40a. The rotary element 40 ahas an annular cross section in a cross section parallel to a main extension direction of the rotary element 40 a. The inner radius of the circular ring shape of the rotating member 40 ais larger than a radius of the cylindrical member, particularly tube. Alternatively, any other embodiment of the rotating element 40 a, which appears expedient to a person skilled in the art, is conceivable. The cutting device 10a has a drive unit 44a.The rotary element 40a is driven in rotation by a drive unit 44a directly via a toothing. Alternatively, it is conceivable that the rotary element 40 ais indirectly driven by the drive unit 44 a. Preferably, the drive unit 44 ais arranged in the handle unit 12 a. The drive unit 44 ais supplied with an electrical energy by means of a battery and / or a power plug. The lower carriage unit 16a has the holding unit 20a. The holding unit 20 ais configured to receive a cylindrical component, in particular a tube, rotatably mounted. The holding unit 20a has two rollers. The rollers are rotatably mounted. The rollers are configured to rotatably support a cylindrical component, in particular a tube. The cylindrical component, in particular tube, is received by the rollers. The cutting device 10 aincludes a locking unit 22 a, which is configured to lock the upper carriage unit 14 ato the lower carriage unit 16 a.The locking unit 22 acomprises at least one latching element 24 a, by means of which the locking of the locking unit 22 ais effected. The locking unit 22 ais configured to lock the upper carriage unit 14 ato the lower carriage unit 16 a. The locking unit 22 ais embodied in multiple parts. The locking unit 22 ais configured to center a cylindrical component, in particular a tube, in a cutting device 10 ain a processing step 38 a. The locking unit 22a has at least one latching element 24a. In particular, it is conceivable that the further element is elastically deflected during a locking process in order to subsequently latch in a corresponding recess of the latching element 24 aby an internal clamping force. The latching element 24 ais arranged on an upper carriage unit 14. The latching element 24 ais arranged in a vicinity of the upper carriage unit 14 a. The latching element 24 ais arranged in a vicinity of the lower carriage unit 16 a. In particular, it is conceivable for the latching element 24 ato be configured to be connected to the upper carriage unit 14 aor to the lower carriage unit 16 a. It is also conceivable for the upper carriage unit 14 aor the lower carriage unit 16 ato have the latching element 24 a. In a locking step 36 a, a force-fit and / or form-fit connection is generated stepwise between a latching element 24 aand a further element in order to perform a locking of the upper carriage unit 14 ato a lower carriage unit 16 a. The latching element 24 ais connected in a force-fit and / or form-fit manner to a further element in an operating step. Via the latching element 24 a, a stepwise linear movement is transmitted to the upper carriage unit 14 a. A stepwise linear movement is transmitted from another element to the latching element 24 a.The locking unit 22 acomprises at least one centrifugal force element 26 a, which is configured to latch into the latching element 24 a. The centrifugal element 26 ais formed connected to the upper carriage unit 14 a. Alternatively, it is conceivable for the centrifugal element 26 ato be arranged in a vicinity of the upper carriage unit 14 a. It is also conceivable for the centrifugal element 26 ato be formed independently of an upper slide unit 14 a. The centrifugal element 26 ais formed integrally, in particular integrally, with the upper slide unit 14 a. The centrifugal force element 26 ais configured to latch into a latching element 24 aby centrifugal force arising from the rotational movement of the rotary element 40 a. The centrifugal element 26 ais formed movably supported with respect to the rotary element 40 a. The upper carriage unit 14 ais arranged to be freely movable with respect to a lower carriage unit 16 awhen the rotary element 40 ahas no rotational movement. The upper slide unit 14 ais locked to a lower slide unit 16 aas soon as the centrifugal force arising due to the rotational movement of the rotary element 40 aengages the centrifugal force element 26 ainto a latching element 24 a. The latching element 24 ais designed as a toothed rack.The centrifugal element 26 ais formed integrally, in particular integrally, with the upper slide unit 14 a. The centrifugal element 26a is formed fixedly connected to an upper slide unit 14a. The centrifugal element 26a is arranged at a coupling point 46a between the upper carriage unit 14a and the lower carriage unit 16a. The centrifugal element 26 aencases the latching element 24 a. The centrifugal element 26a has a recess through which the latching element 24a is guided. The upper carriage unit 14 aand the lower carriage unit 16 aare movably connected to one another via the coupling point 46 a. The centrifugal element 26 aand the latching element 24 aare movably connected to one another via the coupling point 46 a. The centrifugal force element 26 ais configured to be latched into a latching element 24 ain the event of an action of a centrifugal force. The latching element 24 ais formed integrally, in particular integrally, with the lower carriage unit 16 a. Alternatively, it is conceivable for the upper carriage unit 14 ato have the latching element 24 a. Alternatively, it is conceivable for the lower carriage unit 16 ato have the centrifugal element 26 a.The lower carriage unit 16a has the latching element 24a. The latching element 24 ais designed as a toothing on the lower carriage unit 16 a. The latching element 24 ais configured to be connected to the lower carriage unit 16 a. The latching element 24 ais arranged in a vicinity of the pivot point between the lower carriage unit 16 aand the upper carriage unit 14 a. The latching element 26 ais designed as an elongate component. Alternatively, it is conceivable for the latching element 24 ato have a different shape that appears expedient to a person skilled in the art.FIG. 2 shows a method for operating a cutting device 10 aaccording to the invention, in particular a pipe cutting device. In a locking step 36 a, the upper carriage unit 14 ais locked by a locking element 24 ato the lower carriage unit 16 a. In the locking step 36 a, the upper carriage unit 14 ais firmly locked to a lower carriage unit 16 aby the locking element 24 a. In the locking step 36 a, a cylindrical component, in particular a tube, is fixed between the lower slide unit 16 aand the upper slide unit 14 aby the latching element 24 a. In the locking step 36 a, the upper carriage unit 14 ais variably fixed to the lower carriage unit 16 a. In the locking step 36 a, the upper slide unit 14 ais locked by the latching element 24 adepending on a diameter of the cylindrical component to form a lower slide unit 16 a. In the locking step 36 a, a cylindrical component, in particular a tube, is fixed between a cutting element 18 aof the upper carriage unit 14 aand the holding element 20 aof the lower carriage unit 16 a. In the locking step 36 a, a cylindrical component, in particular a tube, is fixed between a cutting element 18 aof the upper carriage unit 14 aand the holding element 20 aof the lower carriage unit 16 ain a manner mounted so as to be movable about an axis of rotation. In the locking step 36 a, the upper carriage unit 14 ais locked in a time-limited manner by the locking element 24 ato the lower carriage unit 16 a. In the locking step 36 a, a force-fit and / or form-fit connection is generated stepwise between a latching element 24 aand a centrifugal element 26 ato perform a locking of the upper carriage unit 14 ato a lower carriage unit 16 a. The upper carriage unit 14a is moved toward a lower carriage unit 16a by the latching member 24a. In the locking step 36 a, a mechanical force is transferred to the upper slide unit 14 avia the latching element 24 a.In a processing step 38 a, the locking of the component, in particular tube, between the upper slide unit 14 aand the lower slide unit 16 ais maintained by engaging in the latching element 24 a. In the processing step 38 a, a centrifugal force element 26 ais permanently latched in the latching element 24 a. In the processing step 38 a, a further element is permanently latched in the latching element 24 a. The latching element 24 ais connected to a further element in a force-fit and / or form-fit manner in a machining step 38 a. In the processing step 38 a, the force-fit and / or form-fit connection between the latching element 24 aand a further element is maintained, so that the locking of the upper carriage unit 14 ato a lower carriage unit 16 ais maintained. In the machining step 38 a, the frictional and / or positive connection is maintained by the rotational movement of the rotary element 40 aand the centrifugal force generated thereby by the latching element 24 aand the centrifugal element 26 a. In the machining step 38a, locking is maintained throughout the entire duration of machining. In the processing step 38 a, a cutting element 18 aof the upper carriage unit 14 ais guided in a rotating manner on a lateral surface of the cylindrical component, in particular tube, around the cylindrical component, in particular tube.In a locking step 36 a, the centrifugal force element 26 alocks into the latching element 24 ain stages by a centrifugal force arising as a result of the rotational movement of a rotary element 40 a. In a locking step 36 a, a centrifugal force is generated upon a start of the rotational movement of the rotary element 40 a. The centrifugal force becomes larger in a locking step 36 awhen the rotational speed of the rotary element 40 aincreases. In the locking step 36 a, the centrifugal force acts on all components which are formed connected to the rotary element 40 a. In the locking step 36 a, the centrifugal force is transmitted to the centrifugal element 26 a. In the locking step 36 a, the centrifugal force element 26 alocks into the latching element 24 aby centrifugal force. In the locking step 36 a, the upper slide unit 14 ais locked to form a lower slide unit 16 aby the centrifugal force element 26 abeing latched into the latching element 24 a. The centrifugal force acts on an upper slide unit 14 ain a locking step 36 a. The centrifugal force acting on the upper slide unit 14 ais transmitted to the centrifugal element 26 ain the locking step 36 a. Alternatively, it is conceivable that the centrifugal element 26 ais formed independently of an upper slide unit 14 aand the centrifugal force acts directly on the centrifugal element 26 a. The engagement of the centrifugal element 26 ainto the engagement element 24 ais maintained as long as the rotary element 40 ahas a rotational movement. In the locking step 36 a, the upper slide unit 14 ais freely movable in the direction of the lower slide unit 16 abefore a rotational movement of the rotary element 40 a. A toothing of the centrifugal element 26 alocks in stages into a toothing of the latching element 24 ain the locking step 36 a. In the locking step 36 a, the steps of locking are defined by the tooth arrangements of the latching element 24 a. In particular, any other method and device that appears expedient to a person skilled in the art for latching a centrifugal element 26 ainto a latching element 24 ais conceivable.In a solution step 42 a, the engagement of the centrifugal element 26 adissociates as soon as the centrifugal force arising due to the rotational movement of the rotary element 40 aceases. In the solution step 42 a, the engagement of the centrifugal element 26 ain a latching element 24 ais decoupled as soon as the centrifugal force arising as a result of the rotational movement of the rotary element 40 aceases. In the release step 42 a, a force-fit and / or form-fit connection between a latching element 24 aand a centrifugal element 26 ais decoupled as soon as the centrifugal force arising as a result of the rotational movement of the rotary element 40 aceases. The centrifugal force decreases with a reduction in the rotational speed of the rotary member 40a. In the solution step 42 a, latching of the centrifugal element 26 ainto a latching element 24 ais decoupled as soon as the centrifugal element 26 ais free from an action of a centrifugal force. In the solution step 42 a, a centrifugal force is reduced. In the solving step 42 a, a centrifugal force is reduced by the reduction of the rotational speed of the rotary element 40 a.In FIGS. 3 to 15, a further embodiment of the invention is shown. The following descriptions and the drawings are limited substantially to the differences between the exemplary embodiments, wherein with regard to identically denoted components, in particular with regard to components with the same reference numerals, reference can in principle also be made to the drawings and / or the description of the other exemplary embodiments, in particular of FIGS. 1 to 2. To distinguish between the exemplary embodiments, the letter a is appended to the reference numerals of the exemplary embodiment in FIGS. 1 to 2. In the exemplary embodiments of FIGS. 3 to 5, the letter a is replaced by the letters b to I.FIG. 3 shows an alternative embodiment of a locking unit 22 bin a schematic illustration. The locking unit 22 bhas a latching element 24 band a centrifugal element 26 b. The latching element 24 bis designed as a toothed disk element, into which the centrifugal element 26 blocks when locked. The toothed disk element is formed fixedly connected to a lower slide unit 16 b. In particular, it is conceivable for the toothed disk element to be formed integrally, in particular integrally, connected to the lower carriage unit 16 b. The toothed disk element has a circular shape in a cross section at least substantially parallel to a main extension direction of the toothed disk element. The toothed disk element has a toothing partially on an outer radius of the circular shape. The toothing is formed corresponding to a centrifugal element 26 b. The toothed disk element is arranged on an axis of rotation 50 bof the upper carriage unit 14 band the lower carriage unit 16 b. The centrifugal element 26 bis configured to engage in a toothed disk element by a centrifugal force arising from the rotational movement of the rotary element 40 b. The upper slide unit 14 bis locked to form a lower slide unit 16 bas soon as the centrifugal force arising due to the rotational movement of the rotary element 40 bengages the centrifugal force element 26 binto the toothed disk element. The centrifugal element 36 bis mounted rotatably movable with respect to an upper slide unit 14 b. The upper carriage unit 14 bis configured to be connected to the lower carriage unit 16 bvia a rotation axis 44 b. Alternatively, any other connection, which appears expedient to a person skilled in the art, between the upper carriage unit 14 band the lower carriage unit 16 bis conceivable.The centrifugal element 26 bhas a pivot point 48 bwith the upper carriage unit 14 b, via which the centrifugal element 26 bis pivotably mounted. The centrifugal element 26 bis configured connected to the upper carriage unit 14 bvia a pivot point 48 b. The centrifugal element 26 bis arranged in a vicinity of the axis of rotation 44 bbetween the upper carriage unit 14 band the lower carriage unit 16 b. The pivot point 48 bof the centrifugal element 26 band the upper carriage unit 14 bis arranged between the cutting element 18 band the rotation axis 44 bbetween the upper carriage unit 14 band the lower carriage unit 16 b. The pivot point 48 bis configured to latch the centrifugal force element 26 bin a catch element 24 bin a rotational manner upon the action of a centrifugal force. The engagement of the centrifugal element 26b around the pivot point 48b in the latching element 24b locks an upper carriage unit 14b to a lower carriage unit 16b.The upper carriage unit 14 band the lower carriage unit 16 bhave a common axis of rotation 44 b. The lower carriage unit 14 band the upper carriage unit 16 bare configured movably connected via a rotation axis 44 b. By means of the rotation axis 44 b, the upper carriage unit 14 bis mounted rotatably movably with respect to a lower carriage unit 16 b. The upper carriage unit 14 band the lower carriage unit 16 bare configured to be connected to one another via a mechanical rotational axis 44 b. Alternatively, any other configuration of the rotation axis 44 bappearing appropriate to a person skilled in the art is conceivable. The rotation axis 44 bis arranged at an end of the upper carriage unit 14 b, which end is opposite the cutting element 18 b. The lower carriage unit 16 bhas a holding unit 20 b. The rotation axis 44 bis arranged at an end of the lower carriage unit 16 b, which end is opposite the holding unit 20 b. The axis of rotation 44 bhas a circular cross section in a cross section at least substantially perpendicular to a main direction of extension of the axis of rotation 44 b. The rotation axis 44b serves as a pivot bearing of the upper carriage unit 14b to a lower carriage unit 16b.FIG. 4 shows an alternative embodiment of a schematic flow diagram of a method for operating a cutting device 10 c. The cutting device 10c comprises a lever member 30c. In a locking step 36 c, the lever element 30 coperates a transmission element 32 cto latch in a ratchet element 24 cin a stepwise manner. In the locking step 36 c, a movement of the lever element 30 cis transmitted to the transmission element 32 c. In the locking step 36 c, a lever movement of the lever element 30 cis converted via a lever pivot point into a linear movement of the transmission element 32 c. In particular, it is conceivable that in the locking step 36 c, a lever movement of the lever element 30 cis transferred via a lever pivot point into a movement that appears expedient to a person skilled in the art. In the locking step 36 c, a movement of the lever element 30 cis transmitted to the transmission element 32 cvia a lever pivot point. The transmission element 32 cin the locking step 36 clocks into a locking element 24 c. In the locking step 26 c, a movement of the upper slide unit 14 cin the direction of the lower slide unit 16 cis carried out via the lever element 30 c. In the locking step 36 c, at least one toothing of the transmission element 32 clocks into at least one recess of the latching element 24 c. The toothing of the transmission element 32 cand the recess of the latching element 24 care designed to correspond. The toothing of the transmission element 32 cand the recess of the latching element 24 care connected to one another in a force-fit and / or form-fit manner in a locking step 36 c. In particular, it is conceivable for the lever element 30 cto be formed in multiple parts. It is furthermore conceivable for the transmission element 32 cto have a first partial transmission element 52 cand a further partial transmission element 54 c. In particular, it is conceivable that a movement of the lever element 30 cis transmitted in a locking step 36 cto a first partial transmission element 52 cand from a first partial transmission element 52 cto a further partial transmission element 54 c. In particular, it is conceivable for the locking unit 22 cto have a latching lever element 56 c, which latches into a latching element 24 cin a locking step 36 c. In the locking step 36 c, a movement is transmitted from a lever element 30 cto the transmission element 32 cvia a lever pivot point. In particular, it is conceivable that in the locking step 36 c, a movement is transmitted from the transmission element 32 cto the latching lever element 56 c. It is furthermore conceivable that in a locking step 36 c, a movement is transmitted from a further partial transmission element 54 cto the latching lever element 36 c. In particular, it is conceivable that in the locking step 36 c, the latching lever element 56 clocks into a latching element 24 cby the transmitted movement. In particular, it is conceivable that in the locking step 36 c, a force-fit and / or form-fit connection is produced between the latching lever element 56 cand the latching element 24 cby the transmitted movement. In particular, it is conceivable that the upper carriage unit 14 cis locked to form a lower carriage unit 16 cby the force-fit and / or form-fit connection between the latching lever element 56 cand the latching element 24 c. The cutting device 10 ccomprises a solution unit. In a releasing step 42 c, the locking into a locking element 24 cis decoupled by means of the releasing unit 34 c. In the releasing step 42 c, a movement is transferred to the releasing unit 34 cby the lever element 30 c, as a result of which the latching of a transmission element 32 cand / or latching lever element 56 cin the latching element 24 cis decoupled. In the solution step 42 c, the latching of a transmission element 32 cand / or latching lever element 56 cin the latching element 24 cis decoupled via a mechanical return of the coupling. In the releasing step 42c, a locking of the upper carriage unit 14c to a lower carriage unit 16c is released. In the releasing step 42 c, a change is made between a locking step 36 cto a releasing step 42 cvia a mechanical coupling of the lever element 30 c. In the releasing step 42c, a movement of the lever member 30c is transmitted to the releasing unit 34c, whereby the releasing unit 34c transmits a movement to the rotating member 40c. In the releasing step 42c, an upper carriage unit 14c is set to a neutral position by transmitting the movement of the lever element 30c to the releasing unit 34c. In the releasing step 42 c, a movement is transmitted mechanically to the rotating element 40 cvia a plurality of joint elements 58 cof the releasing unit 34 c.FIG. 5 shows an alternative embodiment of a locking unit 22 din a schematic illustration. The locking unit 22 dcomprises a latching element 24 d. The locking unit 22 dcomprises at least one lever element 30 dwhich is configured to actuate the latching element 24 d. Movement is transmitted by a user to the lever member 30 d. The lever element 30 dis configured to transfer a lever movement of the lever element 30 dvia a lever pivot point into a linear movement. In particular, it is conceivable for the lever element 30 dto be configured to transfer a lever movement of the lever element 30 dvia a lever pivot point into a movement that appears expedient to a person skilled in the art. The lever member 30d has a lever fulcrum 60d. The lever pivot point 60 dis formed as an axis. The lever element 30 dcomprises a lever pivot point 60 dwith a handle unit 12 d. The lever member 30 dis disposed in a vicinity of the lower carriage unit 16 d. The lever element 30 dis movably mounted to form a handle unit 12 d. The lever element 30 dis configured to convert a cyclical lever movement into a stepwise linear movement. The lever member 30d is mechanically operated by a user. The lever element 30 dis configured to cyclically accommodate a lever movement of a user. In particular, it is conceivable for the lever element 30 dto have a spring element which is configured to reset the lever element 30 dto an initial position with a spring force.The locking unit 22 dcomprises at least one transmission element 32 d, which transmits a force from the lever element 30 dto the catch element 24 d. The lever element 30 dis configured to transfer a lever movement of the lever element 30 dvia a lever pivot point into a linear movement of the transmission element 32 d. The transmission element 32 dis configured to absorb a movement from the lever element 30 dand to transmit it to a latching element 24 d. A movement of the lever element 30 dis transmitted to the transmission element 32 dvia the lever pivot point 60 d. The transmission element 32 dlocks into a latching element 24 d. The transmission element 32 dis configured to transmit a movement of the upper carriage unit 14 din the direction of the lower carriage unit 16 dvia the lever element 30 d. The transmission element 32 dcomprises a toothing. The latching element 24 dhas a recess. The toothing of the transmission element 32 dand the recess of the latching element 24 dare formed correspondingly. In particular, it is conceivable for the lever element 30 dto be formed in multiple parts.FIG. 6 shows an alternative embodiment of a locking unit 22 ein a schematic illustration. The transmission element 32 ecomprises a first partial transmission element 52 eand a further partial transmission element 54 e. A movement of the lever element 30 eis transmitted in a locking step 36 eto a first partial transmission element 52 eand from a first partial transmission element 52 eto a further partial transmission element 54 e. The locking unit 22 ehas a latching lever element 56 ewhich latches into a latching element 24 ein a locking step 36 e. The transmission element 32 eis configured to transmit a movement to the latching lever element 56 e. The lever element 30 eand the transmission element 32 ehave a connection point 62 e. The connecting point 62 eis designed as a mechanical connection. The lever element 30 eand the transmission element 32 eare configured to be contacting at the connection point 62 e. The latching lever element 56 eis configured to latch into a latching element 24 ein a locking step 36 e. The lever element 30 eis configured to absorb a lever movement of a user and to transmit it to a latching lever element 56 e.FIG. 7 shows an alternative embodiment of the locking unit 22 fin a schematic illustration. The locking unit 22 fcomprises a latching element 24 fand a latching lever element 56 f. The locking unit 22 fis formed installed in a cutting device 10 f. The cutting device 10f comprises an upper carriage unit 14f and a lower carriage unit 16f. The locking unit 22 fcomprises a releasing unit 34 fwhich is configured to decouple the catch element 24 f. The solution unit 34 fis configured to decouple a coupling between the latching element 24 fand the transmission element 32 for between the latching element 24 fand the latching lever element 56 fdepending on a movement of the lever element 30 f. The releasing unit 34 fis configured to receive a movement from the lever member 30 fand transmit it to the rotating member 40 c. The releasing unit 34 fis configured to release a locking of the upper carriage unit 14 ftoward a lower carriage unit 16 f. The releasing unit 34 fis configured to bring an upper carriage unit 14 finto a neutral position by transmitting the movement of the lever element 30 fto the releasing unit 34 f. The solution unit 34 fis embodied in multiple parts. The release unit 34 fcomprises a plurality of joint elements 58 f. The joint elements 58 fare configured to mechanically transmit a movement to the rotary element 40 f. The releasing unit 34f has a joint 64f with the rotating member 40f. The release unit 34 fhas a wedge shape at the connection point 64 f, which locks into at least one toothing of the rotary element 40 f. A movement is transmitted to the rotary element 40c via the connection point 64f. A stepwise movement is transmitted to the rotary element 40c via the connection point 64c. The releasing unit 34 fis configured to release a connection point 64 fbetween the rotating element 40 fand the releasing unit 34 fby an operation of the lever element 30 f. The release unit 34 fis arranged movably supported with respect to a handle unit 12 f. The solution unit 34 fis configured to be connected to the handle unit 12 fvia a plurality of axes of rotation. In particular, it is conceivable for each individual part of the solution unit 34 fto be connected to the handle unit 12 fin a movably mounted manner via a rotational axis.FIGS. 8 and 9 show an alternative embodiment of a locking unit 22 gin a schematic illustration. The locking unit 22 gcomprises a latching element 24 gand a blocking element 68 g. The locking unit 22 gis formed installed in a cutting device 10 g. The cutting device 10g comprises an upper carriage unit 14g and a lower carriage unit 16g. The locking unit 22 ghas at least one slide bearing 66 g. The slide bearings 66 gare configured to movably support a blocking member 26 g. The latching element 24 gis formed integrally, in particular integrally, connected to the lower carriage unit 16 g. The upper carriage unit 14 gsurrounds the latching element 24 gof the lower carriage unit 16 gat one end. The blocking element 68 gis configured to lock an upper carriage unit 14 gto a lower carriage unit 16 g. The cutting device 10 gincludes a rotating member 40 g. The blocking element 68 gis configured to be pressed into a latching element 24 gby a rotating element 40 g. The locking unit 22 gcomprises a spring element 70 g. The spring element 70 gis configured to displace the blocking element 68 gfrom a latching position into an initial position by a spring force. The spring element 70 gshifts the blocking element 70 gfrom a latching element 24 gvia a spring force. The rotary member 40g has a recess 72g. The spring element 70 gshifts the blocking element into the recess 72 gof the rotary element 40 g. During a rotation of the rotary element 40 g, the blocking element 68 gis pushed out of the recess 72 g. The blocking element 68 gis displaced from the recess 72 ginto the latching element 24 gand locks the upper carriage unit 14 gtoward the lower carriage unit 16 g.FIG. 10 shows an alternative embodiment of a locking unit 22 hin a schematic illustration. The locking unit 22 hcomprises a latching element 24 hand a centrifugal element 26 h. The latching element 24 hand the centrifugal element 26 hare configured connected via a sliding joint 74 h. The latching element 24 hand the centrifugal element 26 hare movably connected via a sliding joint 74 h. The latching element 24 hand the centrifugal element 26 hare arranged so as to make permanent contact. The sliding joint 74 his configured to lock a cylindrical component, in particular a tube, and / or to release a lock, depending on the load on the sliding joint 74 h. The locking unit 22 his formed installed in a cutting device 10 h. The cutting device 10h comprises an upper carriage unit 14h and a lower carriage unit 16h. The upper carriage unit 14 his configured movably connected to the lower carriage unit 16 hvia the slide bearing 74 h. The slide bearing 74h has a stepwise adjustment of the locking. It is furthermore conceivable for a locking unit 22 hto have a locking element. In particular, it is conceivable for the slide bearing 74 hto be secured by a locking element. In particular, it is conceivable for the locking element to be configured to maintain a locking of the upper slide unit 14 hto the lower slide unit 16 hvia the slide bearing 74 h. The latching element 24 hhas a recess 76 hin a cross section parallel to a main direction of extension. The recess 76h has a cloud-shaped cross section.FIGS. 11 and 12 show an alternative embodiment of a locking unit 22 iin a schematic illustration. The locking unit 22 ihas a latching element 24 i. The locking unit 22 iis formed installed in a cutting device 10 i. The cutting device 10 iincludes an upper carriage unit 14 iand a lower carriage unit 16 i. The latching element 24 iis designed as a wedge. The latching element 24 ihas an axis of rotation 78 iwith the upper carriage unit 14 iand the lower carriage unit 16 i. The latching element 24 iis configured movably mounted with respect to the upper carriage unit 14 iand the lower carriage unit 16 i. The latching element 24 iis configured to lock the upper carriage unit 14 ito the lower carriage unit 16 i. The latching element 24 iis configured to wedge the upper carriage unit 14 ito the lower carriage unit 16 i. The latching element 24 iis arranged in a keyed state between the upper carriage unit 14 iand the lower carriage unit 16 i. In particular, it is conceivable for the latching element 24 ito latch between the upper carriage unit 14 iand the lower carriage unit 16 ias a result of centrifugal force. The upper carriage unit 14i and the lower carriage unit 16i are mounted movably with respect to each other. The latching element 24 iis configured to fix an upper carriage unit 14 ito a lower carriage unit 16 i. The latching element 24 iis configured to wedge an upper carriage unit 14 ito form a lower carriage unit 16 i.FIG. 13 shows an alternative embodiment of a locking unit 22 jin a schematic illustration. The locking unit 22 jis provided with a latching element 24 j. The locking unit 22 jis formed installed in a cutting device 10 j. The cutting device 10j comprises an upper carriage unit 14j and a lower carriage unit 16j. The upper carriage unit 14j and the lower carriage unit 16j are movably connected to each other via a cam gear 82j. The locking unit 22 jis provided with a roller member 80 j. The roller element 80j slidably extends over an outer surface of the detent 24j. The cutting device 10j has a rotating member 40j. By rotating the rotating member 40j, the cam gear 82j tilts and locks the upper carriage unit 14i to the lower carriage unit 16i. The cam mechanism 82 jis configured to produce a movable connection point 84 jbetween a latching element 24 jand a roller element 80 j. The roller element 80 jis formed movably connected to the upper carriage unit 14 ivia a rotation axis 86 j. The cam gear 82 jis configured to lock an upper carriage unit 14 jto a lower carriage unit 16 jby centrifugal force generated by the rotary member 40 j.FIG. 14 shows an alternative embodiment of a locking unit 22 kin a schematic illustration. The locking unit 22 khas a latching element 24 k. The locking unit 22 kis formed installed in a cutting device 10 k. The cutting device 10k comprises an upper carriage unit 14k and a lower carriage unit 16k. The latching element 24 kis formed integrally, in particular integrally, connected to the upper carriage unit 14 k. The locking unit 22 khas a locking element 88 k. The locking element 88 kis configured to latch into a latching element 24 k. The blocking element 88 kis configured movably with the lower carriage unit 16 kvia a rotation axis 90 k. The latching element 24 khas a toothing. The locking element 88k has a lever 92k. The lever 92 kis configured to engage in the toothing of the latching element 24 k. The latching of the lever 92 kinto the toothing of the latching element 24 klocks the upper carriage unit 14 kto form a lower carriage unit 16 k. The cutting device 10k includes a rotating member 40k. In particular, it is conceivable that a rotational movement of the rotary element 40 kis transmitted to the blocking element 88 k. The toothing of the latching element 24 kdefines the stepwise locking.FIG. 15 shows an alternative embodiment of a locking unit 22 lin a schematic illustration. The locking unit 22 lhas a latching element 24 l. The locking unit 22 lis formed installed in a cutting device 10 l. The cutting device 10 lincludes an upper carriage unit 14 land a lower carriage unit 16 l. The cutting device 10 lincludes a rotating member 40 l. The cutting device 10 lcomprises a drive unit 44 l. The rotary member 40 lis rotationally driven by the drive unit 44 l. The locking unit 22 lcomprises a centrifugal element 26 l. The latching element 24 iis formed in the wall of the rotary element 40 las a recess 94 l. The centrifugal force element 26 lis pressed into the recess 94 lvia the centrifugal force arising from the rotation of the rotary element 40 l. The recess 94 lis configured to take along a centrifugal element 26 l. The rotational movement of the rotary element 40 lis transferred via the centrifugal element 26 lto the upper carriage unit 14 l. The centrifugal element 26 lis designed as a blocking plate. The centrifugal element 26 lis configured to tilt between a rotating element 40 land an upper carriage unit 14 l. The tilting of the centrifugal element 26 lbetween the rotating element 40 land the upper carriage unit 14 llocks the upper carriage unit 14 ito a lower carriage unit 16 l.

Claims

Cutting device (10a; 10b; 10d), in particular a pipe cutting device, having at least one handle unit (12a, 12b; 12d), having at least one upper slide unit (14a; 14b; 14d) and at least one lower slide unit (16a; 16b; 16d), wherein the upper slide unit (14a; 14b; 14b) has a cutting element (18a; 18b; 18d) and the lower slide unit (16a; 16b; 16d) has at least one holding unit (20a; 20b, 20d), wherein the upper slide unit (14a; 14b, 14d) is designed to be movably mounted against the lower slide unit (16a; 16b; 16d), and having at least one locking unit (22a; 22b; 22d) which is designed to mount the upper slide unit (14a; 14b; 14d) to be locked to the lower carriage unit (16a; 16b; 16d), characterized in that the locking unit (22a; 22b; 22d) has at least one latching element (24a; 24b; 24d), by means of which the locking of the locking unit (22a; 22b; 22d) takes place.Cutting device (10a) according to Claim 1, characterized in that the locking unit (22a) has at least one centrifugal force element (26a), which is configured to latch into the latching element (24a).Cutting device (10b) according to Claim 2, characterized in that the latching element (24b) is designed as a toothed disc element, into which the centrifugal force element (26b) latches when locked.Cutting device (10a) at least according to claim 2, characterised in that the centrifugal element (26a) has a pivot point (28a) with the upper carriage unit (14a), via which the centrifugal element (26a) is pivotably mounted.Cutting device (10a) at least according to Claim 2, characterized in that the centrifugal force element (26a) is formed integrally, in particular integrally, with the upper carriage unit (14a).Cutting device (10) according to Claim 1, characterized in that the locking unit (22d) has at least one lever element (30d), which is configured to actuate the latching element (24d).Cutting device (10d) according to claim 6, characterised in that the locking unit (22d) has at least one transmission element (32d) which transmits a force from the lever element (30d) to the ratchet element (24d).Cutting device (10a) according to one of the preceding claims, characterized in that the upper carriage unit (14a) and the lower carriage unit (16a) have a common axis of rotation.Cutting device (10f) according to one of the preceding claims, characterized in that the locking unit (22f) has a releasing unit (34f) which is configured to decouple the ratchet element (24f).Cutting device (10a), in particular a pipe cutting device, according to one of the preceding claims, characterized in that the detent element (24a) is formed in one piece, in particular in one piece, with the lower slide unit (16a).Method for operating a cutting device (10a), in particular a pipe cutting device, according to one of the preceding claims, characterized in that, in a locking step (36a), the upper slide unit (14a) is locked to the lower slide unit (16a) by a locking element (24a).Method according to claim 11, characterised in that in a processing step (38a) the locking of the component, in particular pipe, between the upper slide unit (14a) and the lower slide unit (16a) is maintained by means of the locking into the locking element (24a).Method according to Claim 11, characterized in that, in a locking step (36a), the centrifugal force element (26a) latches in stages into the latching element (24a) by centrifugal force arising as a result of the rotational movement of a rotary element (40a).Method according to claim 11, characterised in that in a locking step (36c) the lever element (30d) actuates a transmission element (32d) in order to latch in a detent element (24d) in stages.Method according to Claim 11, characterized in that, in a releasing step (42a), the engagement of the centrifugal force element (26a) is decoupled as soon as the centrifugal force arising as a result of the rotational movement of the rotary element (40a) decreases.Method according to Claim 11, characterized in that, in a releasing step (42c), the latching into a latching element (24f) is decoupled by means of the releasing unit (34f).

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