JP2018011945A - Cutting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cutting device 10 such as a horticulture cutting device comprising: first and second cutting members (12, 14) made movable relative to each other; first and second grip members (16, 18) made movable relative to each other; at least one drive unit (20) intended to support at least the motions of the second cutting member (14) relative to the first cutting member (12) when at least one is in an active state; and spring members (28, 50, 36, 68 and 424).SOLUTION: It is proposed that spring members (28, 50, 36, 68 and 424) are constituted as a braking member (28) for switching at least one automatic change-over type clutch unit (22) intended for connection-releasing a drive unit (20) when the drive unit (20) is in one active state, in which the drive unit is inactive.SELECTED DRAWING: Figure 2

Description

  Cutting devices such as horticultural cutting devices have already been proposed.

  From Patent Literature 1, two cutting edges relatively movable with each other, two grip members relatively movable with each other, and a second cutting edge relative to the first cutting edge in the operating state Cutting devices with a drive unit intended to support the movement of the device are already known.

German patent No. 102010016296B4

  First and second cutting members movable relative to each other; first and second gripping members movable relative to each other; relative to the first cutting member in at least one operating state A cutting device, for example a horticultural cutting device, is disclosed having at least one drive unit intended to at least support the movement of the second cutting member. This cutting device has a spring member. The spring member may be configured as a braking member, an open spring, a force sensor member, a return member, a compression spring or a tension spring, a spiral spring, a tension spring, an initial stress member, and the like. It is proposed that the cutting device has at least one self-switching clutch unit intended to decouple the drive unit at least in the operating state in which the drive unit is deactivated.

Alternatively, the first and second working members that are movable relative to each other, such as a gripping member and a pliers member, and the first and second grip members that are movable relative to each other, and at least one operating state There is also disclosed another manual machine tool having at least one drive unit intended to at least support movement of the second work member relative to the first work member, At least one automatic switching clutch unit intended to decouple the drive unit at least in the operating state when the drive unit is deactivated.
Furthermore, it is proposed that the at least one self-switching clutch unit is intended for decoupling the drive unit in order to embody a complete manual operation when in at least one operating state.
Furthermore, it is proposed that the at least one automatic switching clutch unit is configured as a freewheeling clutch.
Furthermore, it is proposed that the at least one automatically switching clutch unit has at least one clamping body.
Furthermore, the at least one self-switching clutch unit may have at least one retainer that houses the clamp body and a braking member intended to decelerate the retainer when in at least one operating state. Proposed.
Furthermore, a rope winch that can be driven by the drive unit and at least one rope that is at least partially stretched between each gripping member, at least partially wound on and / or windable by the rope winch Is proposed.
Furthermore, it is proposed that the at least one automatically switching clutch unit is at least partially integrated in the at least one rope winch.
In addition, a spring member is proposed that is coupled with a rope winch, for example configured as a spiral spring and intended for tensioning the rope during at least one operating state.
Furthermore, at least one transmission unit arranged on the first grip member of the grip member is proposed.
Furthermore, it is proposed that the drive unit and the transmission unit are spatially arranged between the cutting member and at least one automatically switching clutch unit.
Furthermore, it is proposed that the at least one transmission unit has at least two gear stages, between which at least one automatic switching clutch unit is arranged.
Furthermore, at least one force sensor integrated in the second grip member of the grip member is proposed.
In addition to this, a method for operating the cutting device is proposed, and when the defined operating force is exceeded, the drive unit is connected to the closing mechanism of the cutting device.
In addition to this, a method step is proposed in which the drive unit automatically stops when the final position of the cutting device is reached and is temporarily driven in the opposite direction to the drive direction to open the clutch unit.

It is further proposed that the cutting device is configured to recognize an object between each gripping member and turn off the support operation.
Further, it is proposed that a sensor for recognizing an object is arranged on the first or second grip member, for example, on the grip inner surface of the first or second grip member facing the other grip member.
In addition, a sensor, for example a force sensor and / or a stroke sensor, causes the cutting device to turn off the support operation when an object is placed at least between each gripping member in order to recognize the need for motion support. Further, it is proposed that the first and second grip members are arranged.
Further, the second grip is operatively connected to the drive unit between the second cutting member and the second grip member to define the motion support, for example to define the motion support on or off. It is proposed that a force transmission member, which is arranged so as to be able to move relative to the member, for example non-rotatably coupled to the second cutting member, is arranged.
Furthermore, it is proposed that this relative movement is a pivoting movement of the force transmission member relative to the second grip member.
Furthermore, it is proposed that the second grip member has at least one relative movement limiting member.
Furthermore, it is proposed that sensors, for example force sensors and / or stroke sensors, detect relative movement.
Furthermore, it is proposed that the sensor has a spring and a switch, and a support motion adjustment member, for example arranged on the grip inner surface of the first or second grip member.
Furthermore, it is proposed that at least one of the gripping members is configured to be at least partially elastic, rounded and / or chamfered at least on the inner surface of the grip. .

Furthermore, it is proposed that a protective device is arranged between each grip member between a rotary joint that couples each grip member and an open spring arranged between each grip member.
In addition, the protective device accommodates a cutting device cable, for example an energy supply cable or a sensor cable, and / or an intermediate space delimited by a gripping member, a rotary joint and an open spring, for example in the intermediate space of the operator's limb It is proposed to form a shielding device for shielding to avoid at least one misplacement.

Furthermore, the first and second cutting members that are movable relative to each other, the first and second grip members that are movable relative to each other, an open spring disposed between the grip members, and at least one At least one drive unit intended to at least support movement of the second cutting member relative to the first cutting member when in the operating state; and a drive unit when in the at least one operating state; A cutting device, such as a gardening cutting device, having at least one driving force transmission member operatively connected is disclosed.
It is proposed that the driving force transmission member is arranged inside the open spring.
Furthermore, it is proposed that the driving force transmission member is a rope.
Furthermore, it is proposed that the rope is made of polyethylene, for example made of ultra high molecular weight polyethylene.
Furthermore, it is proposed that at least one of the grip members is provided with a guide member, for example a guide sleeve, for guiding the drive force transmission member with low friction and / or low wear.
Furthermore, it is proposed that the opening spring has at least one guide member for guiding the driving force transmission member with low friction.
Furthermore, it is proposed that the driving force transmission member is arranged in a contactless manner inside the open spring.
Furthermore, it is proposed that the open spring is a bamboo spring, for example a double bamboo spring.
Furthermore, it is proposed that the open spring is configured to seal the hollow space formed thereby, for example against dust and / or moisture.
Furthermore, it is proposed that the end of the open spring is arranged in the notch of the grip member.
Furthermore, it is proposed that the cutting device enables manual operation as well as manual and machine-assisted operation.

Furthermore, it is proposed that the cutting device has a driving unit, a transmission unit, a clutch unit, a return unit, and a driving force transmission member driving member arranged in this order on the surface or inside of the first grip member. There is no separate transmission between the unit and the drive member.
Furthermore, it is proposed that the drive member non-rotatably couples at least one rotating component of the clutch unit and / or the return unit, eg non-rotatably couples the rotary member inside the clutch unit and the rotating body of the return unit. The
Furthermore, it is proposed that the rotating member inside the clutch unit and the rotating body of the return unit are coupled to each other in a non-rotatable manner at least in a friction-joint type and / or a shape-joint type.
Furthermore, it is proposed that the rotating member inside the clutch unit is made of metal and the rotating body of the return unit is made of plastic.
Furthermore, it is proposed that the drive member is connected in a form-joining manner with the clutch unit and / or the return unit via a polygonal profile.
Furthermore, it is proposed that the return unit and the clutch unit are at least partially housed in a common housing.
Furthermore, it is proposed that the fixing member fixes the clutch unit and the return unit to the housing via a cage for accommodating the clamp body of the clutch unit.
It is further proposed that the planetary carrier of the transmission unit is a component of the clutch unit, for example a rotating member outside the clutch unit.

Furthermore, an assembly method for assembling at least an initial stressed return unit for a cutting device is proposed, the return unit comprising a spring member fixedly coupled to the housing and the rotating body, and an automatic switching clutch unit. For example, at least one inner rotating member, a retainer for receiving the clamp body, and a braking member, and having at least the following steps:
The return unit is fixed to the clutch unit housing via a fixing member;
The initial stress is applied to the spring member by turning the rotating body;
An assembly aid that fixes the housing to the rotating body in a non-rotatable manner is temporarily arranged, for example, between the housing and the inner rotating member.
Furthermore, an assembling method is proposed having at least the following further method steps:
The initial stressed return unit is coupled with the driving force transmission member of the cutting device;
The assembly aid is removed in order to transmit the initial stress of the return unit subjected to the initial stress to the drive force transmission member, for example to apply the initial stress to the drive force transmission member by the return force;
Furthermore, an assembly method is proposed which has at least a first method step of the following further method steps:
The outer rotating member of the clutch unit is rotatably coupled to the inner rotating member of the clutch unit via the coupling member and fixed in the axial direction;
An outer rotating member configured as a planetary carrier is coupled to the transmission unit;

Furthermore, a battery-driven manual machine tool having first and second cutting members movable relative to each other, for example, a battery-driven cutting device, for example a block device for horticultural scissors, has been proposed, Releasing the charging interface when the blocking device is in a first position to block the operation of the manual machine tool and / or tool movement, and the second releasing the charging device to operate the manual machine tool and / or tool movement. Block and / or cover the charging interface when in position.
Furthermore, it is proposed that the block device is configured as a mechanical block device.
Furthermore, it is proposed that the block device has a slide switch that releases or blocks and / or covers the charging interface.
Furthermore, the blocking device has a locking member intended for mechanically blocking or releasing the tool movement, for example in the form of a relative movement of the first and second cutting members of the manual machine tool. Proposed to have.
Furthermore, it is proposed that the charging interface is configured at least as a USB charging interface.
Furthermore, it is proposed that the blocking device is intended to isolate the charging interface from dirt when in the second position.
It is proposed that when the blocking device is in the second position, it is intended for sealing the charging interface, for example sealingly sealing against water and / or dust.

Furthermore, a cutting device having at least one first and second cutting member that can pivot relative to each other about a rotation axis, for example a cutting device for horticulture, is proposed, the cutting member being arranged along the rotation axis They are coupled to each other via at least one coupling member. Irrespective of the coupling member, for example, regardless of the clamping force of the coupling member, a control device to elicit a defined mutual pressing force F _an, of the cutting member in the direction of the rotary shaft is proposed that is provided.
Furthermore, it is proposed that the control device has a spacer member which preferably surrounds the coupling member, for example in the form of a sleeve.
Furthermore, it is proposed that the length I of the spacer member corresponds at least to the sum of the width dimensions b, b of both cutting members along the rotation axis in the direction of the rotation axis.
Furthermore, it is proposed that the control device has an elastic member, for example a spring member, preferably a corrugated washer, that biases the cutting member along the axis of rotation with mutually defined axial forces F _ax .
Furthermore, the elastic member is arranged to be supported at least indirectly by the housing of the cutting device along the axis of rotation, for example by the grip housing of the grip member, and / or at least indirectly by the spacer member. Is proposed.
Furthermore, it is proposed that the elastic member is intended as a friction force adjusting member for adjusting the friction force between each cutting member.
In addition, the elastic member may be used in order to prevent plastic deformation of the cutting member in at least a partial region when the cutting device is operated, or to allow opening of the cutting member in at least a partial region when the cutting device is operated. It is proposed to be configured as a load prevention member.
Furthermore, it is proposed that the control device at least disconnects the coupling member with respect to the cutting member with respect to the rotation, for example with respect to the rotation so as to prevent rotation.
Furthermore, it is proposed that the coupling member can be screwed to a receiving part configured to be detented and / or at least integrated with the spacer member.

Furthermore, a cutting member for gardening scissors having a cutting blade provided with a housing part for coupling with a cutting member housing part for gardening scissors is proposed, and the cutting member is a cutting member to the cutting member housing part for gardening scissors Has an insertion assisting part for inserting the.
Furthermore, it is proposed that the insertion aid is configured as an inclined surface and / or a circular surface, for example as an inclined surface and / or a circular surface configured not to be equal to a purely deburred edge.
Furthermore, it is proposed that the inclined surface has an angle α with respect to the cutting surface of the cutting member that is smaller than °, for example smaller than °, particularly preferably smaller than °.
Further, the insertion assisting portion extends at least substantially between the end of the cutting member facing away from the tip of the cutting member and a notch for fixing the cutting member in the cutting member receiving portion. It is proposed that
Furthermore, it is proposed that the insertion assisting part is configured to at least indirectly expand the elastic member arranged in the cutting member accommodating part.
It is further proposed that the cutting member is a replacement cutting member for gardening scissors.
Furthermore, it is proposed that the cutting member has at least one shape joining member for non-rotatably coupling with a horticultural scissor lever which can be coupled with a horticultural scissor grip member.
Furthermore, a cutting device having a first cutting member of this kind and a second cutting member of this kind, particularly preferably a battery-operated garden scissors is proposed.
The cutting device, it can have a control device which cause mutual defined pressing force F _an, the first cutting member and second cutting member, the insertion assisting unit control device when replacing a cutting member At least intended to expand.
Furthermore, the cutting device allows manual operation as well as manual and machine-assisted operation.

  The cutting device is preferably configured as scissors, particularly preferably as gardening scissors. Two cutting blades which are movable relative to each other are preferably mounted so as to be pivotable relative to each other. A “horticultural cutting device” in this context means, for example, a cutting device intended for use on plants. This should be understood to be a cutting device intended for cutting, for example, plants, hedges, shrubs, branches and / or other objects that would be meaningful to a person skilled in the art. “Cut member” in this context shall mean, for example, a member of a cutting device intended for direct contact with the object to be cut. This is preferably understood to be a member intended to directly sever the object to be cut. In principle, at least one of the cutting members is passively configured, for example, as an anvil and / or a passive cutting edge. However, it is preferred that the at least one cutting member has an active cutting edge, for example a blade, intended for active cutting. Further, in this connection, the “grip member” means a member that forms at least one portion of the hand grip, for example. This is preferably understood to be a member that is at least partially grasped by the operator when activated. In operation, both grip members are preferably gripped by the operator, for example with the same hand. “Supporting the movement of the second cutting member relative to the first cutting member” in this context means that, for example, a force acting at least partly in the same direction as the operating force. It shall be generated by the drive unit. This is understood, for example, that in at least one operating state, for example, manual forces that cause the closing movement of the cutting members relative to each other are supported by forces additionally generated by the drive unit. Preferably it is done.

  “Automatically switched clutch unit” in this context means, for example, a clutch unit which is operated without an external, for example control unit, for example, electrical switching signal. This is preferably understood to be a clutch unit that is operated without an explicit switching signal, for example to switch between the respective clutch states. This is preferably understood to be a clutch unit operated, for example, on the basis of mechanical influence factors. It is particularly preferred that this is understood to be a clutch unit operated, for example, depending on at least one parameter on the drive side and / or the driven side. Accordingly, the clutch unit may be configured, for example, as a rotational speed operation type, a torque operation type, a direction operation type, and / or a force flow operation type. Further, in this connection, “decoupling of the drive unit” means decoupling of the drive unit from the closing mechanism of the cutting device, for example.

  With the configuration of the cutting device according to the present invention, it is possible to realize a preferable disconnection of the drive unit. Thereby, it is possible to allow manual operation of the cutting device, for example with a preferably light operation. Furthermore, there is an advantage that a clutch unit that is preferably operated without an electrical switching signal can be provided. Thereby, for example, a control unit for controlling the clutch unit can be omitted. Thereby, in particular, a particularly reliable clutch unit can be provided. For example, a clutch unit configured to be operable without depending on energy supply can be provided.

  “Fully manual operation” in this context means, for example, an operating state in which the cutting device operates without the support of the drive unit. This is preferably understood as an operating state in which the cutting device is activated only by the operator's active force. It is understood that this is an operating state in which the drive unit is uncoupled and therefore cannot be used for supporting the movement of the second cutting member relative to the first cutting member. Is particularly preferred. Thereby, it is possible to allow manual operation of the cutting device, for example with a preferably light operation. Thereby, it can be realized that, for example, in the absence of an energy supply and / or in the case of a light cutting operation, the cutting device can be used preferably without a drive unit, for example.

  “Freewheeling clutch” in this context means an automatic switching clutch configured, for example, in a directional control and / or a force flow control. The freewheeling clutch is preferably at least directional. For this purpose, the freewheeling clutch can be opened and / or closed, for example, depending on the direction of rotation of the driving and / or driven side of the clutch unit and / or depending on the direction of the force action on the freewheeling clutch. It is preferably intended to do so. In the direction of the force action, for example, it can be distinguished whether the force acts on the freewheeling clutch from the driving side or the driven side. The freewheeling clutch is dependent on, for example, the direction of rotation of the drive side and / or the driven side when the drive unit is in at least one operating state and / or depending on the direction of force action on the freewheeling clutch, It is preferably intended for opening or closing. Thereby, for example, a particularly preferred automatic switching clutch unit can be provided. For example, it may allow manual operation of the cutting device with a preferably light movement. Thereby, there is an advantage that a clutch unit having a particularly high reliability can be provided.

  In this context, “clamp body” refers to the two rotating members of the clutch unit that are rotatably supported relative to each other, for example when at least one operating state, for example when the clutch unit is closed. It shall mean the member of the clutch unit intended for clamping between. In a clamped state, the clamp body is coupled to one rotary member in a shape joining manner in the rotational direction, and is coupled to the other rotating member in an external force joining manner in the rotational direction, for example, a friction joining manner. Is preferred. This is intended, for example, to couple the rotating members of the clutch unit in a non-rotatable manner depending on the operating state of the clutch unit, or to decouple the rotating members of the clutch unit with respect to the circumferential movement relative to each other. It is preferred to be understood as a member. The clamp body is preferably clamped between the respective rotating members when the clutch unit is in a closed state. At least one of the rotating members of the clamp unit preferably has a ramp portion, which changes the radial spacing between the respective rotating members. When the clamp body moves to a region where the radial interval is small, the rotation of the rotating member without the ramp portion is caused by friction. If the clamp body moves to a region where the radial interval is wide, the friction is not sufficient, so that the rotating member without the ramp portion is not rotated. While various clamp bodies are contemplated that would be meaningful to one skilled in the art, it is preferred that the clamp bodies be configured at least partially cylindrical or at least partially spherical. Thereby, for example, a particularly preferred automatic switching clutch unit can be provided. For example, it is possible to provide a freewheeling clutch which is preferred, for example, simple in design. Thereby, there is an advantage that a highly reliable automatic switching clutch unit can be provided.

  The clutch unit preferably has a plurality of clamp bodies accommodated in the same cage. It is preferable that the retainer accommodates the clamp body in the accommodating regions separated from each other. The braking member is preferably intended to increase the inertia of the cage when in at least one operating state. The braking member is preferably intended to prevent unintentional rotation of the cage. It is particularly preferred that the braking member is intended to prevent rotation of the cage until a defined force action. The braking member is preferably supported by an elastic action. For example, the braking member is pressed against the cage by a defined force. “Retainer” in this context means, for example, a member of a clutch unit intended to position and / or guide at least one clamping body, for example circumferentially. The cage is preferably intended to distribute the plurality of clamp bodies circumferentially spaced apart, for example evenly over the circumference. It is particularly preferred that the cage is intended for guiding the plurality of clamp bodies relative to one another in the circumferential direction. Thereby, for example, a preferably defined movement of the clamping body can be realized. For example, in the case of a plurality of clamp bodies, it is possible to realize that the clamp bodies perform the same movement in the circumferential direction. There is the advantage that a controlled clamping of the clamp body can be made possible. Furthermore, unintentional movement of the at least one clamp body can be avoided by the braking member. For example, in that way, unintended clamping can be prevented. Accordingly, it is possible to realize that the clamp body rotates only when a force action is applied to the shape-joining type rotating member of the clutch unit. For example, the release of the clutch unit can be reliably realized by the braking member. Through the braking member, there is an advantage that it is possible to realize that the clamp body is kept stationary during the opening movement of the clutch unit, and that the clutch unit can be released accordingly.

  Preferably, the rope is fixedly fixed to one grip member, and the other grip member is attached via a rope winch. For example, the free length of the rope can be changed through the rope winch. The rope winch is preferably configured to be driven by a drive unit via a clamp unit. The rope winch is preferably configured so that it can be disconnected from the drive unit via the clutch unit when in at least one operating state. It is particularly preferred that the rope winch forms the driven side of the clutch unit. “Rope winch” in this context means, for example, a rope drum, for example a cylindrical rope drum, configured to be driven by a drive unit in at least one operating state. Thereby, a preferable force action of the drive unit can be realized. For example, it can thereby be possible to support the movement of the second cutting member relative to the first cutting member in a simple manner by design. In this way, the operator has the advantage that it can be supported by the drive unit during the closing movement. Further, a high torque can be preferably provided by the force action of the drive unit on the grip member. As a result, the output of the drive unit can be kept low.

  Furthermore, it is proposed that the at least one rope is stretched between the respective gripping members in the region between the gripping regions of the gripping members and the rotary joints in which each gripping member is configured to be pivotable with respect to each other. . The rope is preferably stretched between the respective gripping members in the vicinity of the rotary joint, for example closer to the rotary joint than 10 cm, preferably closer to 8 cm. “Grip region” in this context means, for example, the region of the grip member where the grip member is normally gripped by the operator. Thereby, there is an advantage that the operator can be prevented from being bothered by the rope. Furthermore, the rope can be constructed preferably and short. Thereby, there exists an advantage that a rope winch can be constructed in small size, for example. Furthermore, the cutting device can be closed at a high speed with a small number of rope winches.

  Furthermore, it is proposed that the cutting device has at least one spring member coupled with a rope winch, for example configured as a spiral spring and intended for tensioning the rope in at least one operating state. The spring member is preferably intended to ensure rope tension. The spring member is preferably intended for biasing the rope winch with a force, for example with a circumferential force. It is particularly preferred that the spring member is intended for exerting a tensile force on the rope via the rope winch. For example, the rope may be kept under tension via a spring member. The spring member preferably has a spring force lower than the spring force of the open spring. The spring member makes it possible to guarantee the tension of the rope, for example even during a complete manual operation. In this way, there is an advantage that unintended rope entanglement can be prevented. Furthermore, the winding of the rope can be guaranteed without driving.

  “Transmission unit” in this context means, for example, a transmission unit with a gear ratio greater than 2, preferably greater than 10, particularly preferably greater than 50. . Thereby, a preferable compact design form can be realized. Furthermore, a particularly preferred weight distribution can thereby be realized. For example, the weight of the transmission unit can be placed directly in the area of the operator's hand. As a result, high operational comfort can be realized. Furthermore, it is possible to realize a feeling of use that is at least similar to, for example, a conventional manually operated horticultural scissors.

  The force sensor is preferably connected to the grip region of the second grip member. It is particularly preferred that the grip region is movably supported with respect to the body of the second grip member. The force sensor is preferably intended for sensing a force acting on the second grip member, for example relative to the first grip member. Preferably, the force sensor may be intended not only to detect an accurate force, but also to detect an excess of limit force.

  Furthermore, a method for operating the cutting device is proposed. It is suggested that when the defined operating force is exceeded, the drive unit is connected to the closing mechanism of the cutting device. Thereby, a preferable and comfortable cutting device can be provided. Furthermore, it is possible to realize that the drive unit is connected only when, for example, cutting work of heavy labor. As a result, energy consumption can be reduced.

  Here, the “drive direction” means the rotation direction of the drive unit that rotates, for example, to support the cutting motion when the drive unit is in normal operation. Thereby, there is an advantage that the cutting device can be opened quickly. For example, a preferable and intuitive operation can be realized thereby. The clutch unit can be reliably opened.

  As an alternative, it is proposed that the drive unit is automatically deactivated when the final position of the cutting device is reached, and that the clutch unit is automatically disconnected when the rotational movement of the drive unit stops. Thereby, there is an advantage that the cutting device can be opened quickly. For example, it is possible to realize a preferable and intuitive operation.

  A block device is disclosed for a battery-powered manual machine tool, in particular for a battery-powered cutting device. The block device releases the charging interface when the block device is in a first position that blocks manual machine tool operation and / or tool movement, and the block device releases manual machine tool operation and / or tool movement. It is proposed to block and / or cover the charging interface when in the second position. Thereby, there exists an advantage that operation of the manual machine tool in a charging state can be prevented. The potential for injury is minimized. Manual machine tools become safer. Unintentional fragmentation of the charging cable is avoided. The risk of electric shock for the operator of a manual machine tool that occurs when the charging cable is unintentionally disconnected is minimized. The electronics and controls of the manual machine tool are protected. This is because simultaneous operation and charging of the manual machine tool is prevented. In this way, electronics that are often designed to be smaller cannot be overheated. Damage to manual machine tools is avoided. The charging interface is protected from mechanical influences and actions, especially damage, when operating the manual machine tool. Dirt and corrosion of the charging interface surface and interior are avoided. The service life of the charging interface is extended.

  Furthermore, it is proposed that the block device is configured as a mechanical block device. Thereby, there is an advantage that the block device may be constructed with high robustness. Each member of the block device can be manufactured simply and at low cost. The block device can reliably withstand the operating force and the load generated during transportation, and can withstand without damage.

  Furthermore, it is proposed that the block device has a slide switch that releases or blocks and / or covers the charging interface. The slide switch has an advantage that it can be easily operated. The slide switch can be well guided in the housing of the manual machine tool. When the manual machine tool has a two-shell structure, the slide switch can be easily assembled. The slide switch allows good grip and operating geometry.

  In addition, the blocking device has a locking member intended to mechanically block or release the tool movement, in particular in the form of a relative movement of the two cutting blades of the manual machine tool. It is proposed. The locking member has the advantage of providing a detachable form joint connection. The locking member can be manufactured at low cost. The locking member is sturdy.

  In addition to this, it is proposed that the charging interface is configured at least as a USB charging interface. Thus, there is an advantage that the manual machine tool can be charged by any charging device intended for mobile radio devices, for example. The charging interface is compact and has a proven track record, and is popular as a standard product in the IT field. Charging via the USB charging interface of the vehicle or at least its cigarette lighter is also possible without problems, thereby enabling mobile charging. In addition, instrument data can be read via the USB interface, especially during the charging process, software updates can be performed, or manual machine tool error diagnosis can be performed.

  Furthermore, it is proposed that the blocking device is intended to keep dirt away from the charging interface when in the second position. Furthermore, it is proposed that the block device seals the charging interface in the second position, in particular watertight. This has the advantage that the charging interface is protected against dirt and moisture ingress during operation of the manual machine tool. In particular, dirt and moisture ingress into the electronic components of the manual machine tool are thus avoided. Maintenance without malfunction or functionality of the manual machine tool is ensured.

  Furthermore, it is proposed that the battery-powered manual machine tool is a horticultural scissor, preferably a horticultural scissor that allows purely manual as well as manual and machine-supported operations. The cutting member of the horticultural scissors poses a risk of injury to the operator when it is not blocked. This risk is further increased by the electromechanically actuable support. Furthermore, battery-operated gardening scissors, in particular gardening scissors configured for one-handed operation, should be as compact as possible. With the block device according to the present invention, the charging interface can be made compact and resistant to dirt and moisture. The number of components can be reduced by the combination of the charging interface cover and by the block of operation and / or tool movement. A compact and weight-reduced manual machine tool structure is realized.

  Furthermore, it is disclosed that the cutting member has a through hole in the rotation axis direction through which the coupling member passes. The radial surface of the through-hole of the cutting member is a bearing surface, in particular a slide-supported bearing, which is rotatably mounted on the corresponding bearing surface, in particular of the control device, in particular the sleeve surrounding the coupling member in the radial direction. Form. “Clamping force” means in particular the axial force generated by the coupling member or the initial stress of the coupling member. The coupling member is in particular an at least one screw and a threaded nut. The “crimping force” particularly means a force by which the axial sliding surfaces of the cutting member are pressed against each other at least in the region of the coupling member. Depending on the crimping force of the cutting member, the operating force applied to the grip member for rotating or turning the cutting member must be large or small.

  The control device has the advantage that the problems of the cutting device according to the prior art are overcome. Crimping force or initial stress can be adjusted in advance. Regardless of the operator's force and / or the tightening torque of the coupling member, the crimping force of the cutting member is at least substantially constant. The cutting result is improved. Opening of the cutting member, particularly plastic deformation is prevented, and durability of the cutting device is improved.

  Furthermore, it is proposed that the control device has a spacer member which preferably surrounds the coupling member, in particular in the form of a sleeve. The spacer member may be configured integrally with the coupling member. The spacer member can also form a coupling member. The spacer member defines the distance between the two clamping force transmission members of the coupling member, in particular the minimum distance, in the direction of the rotation axis. The clamping force transmission member is in particular a screw head and a threaded nut that transmits the initial stress at least partly to the spacer member and / or at least indirectly to the axial face of the cutting member. This serves to realize a minimum distance between both cutting members in the direction of the axis of rotation, at least in the region of the connecting member, preferably in the connecting region or sliding region of the cutting blade. The spacer member can space the cutting member from the coupling member even in the radial direction. This increases the cross-sectional area of coupling between the cutting member and the coupling member or control device. This in turn allows for a higher durability of the cutting device. In particular, the suitability of horticultural scissors for transmitting higher forces during force support operations can be realized.

  Furthermore, the length of the spacer member corresponds at least in the direction of the axis of rotation to the sum of the width dimensions of both cutting members along the axis of rotation, in particular the width dimension of both cutting members in the region of the notch of the cutting member. It is proposed to correspond at least to the sum of Thereby, regardless of the clamping force of the coupling member and / or the clamping force of the tightening torque of the coupling screw, at least a minimum clearance can be ensured between the respective cutting members, so that the operability of the cutting device is increased. Guaranteed.

In addition to this, it is proposed that the control device has an elastic member, in particular a spring member, which urges the cutting member against each other with an axial or clamping force defined along the axis of rotation. The elastic member is preferably arranged to at least indirectly support one of the cutting members in the axial direction relative to the spacer member. The elastic member may be intended as a friction force adjusting member for adjusting the friction force between the respective cutting members.
Thereby, there exists an advantage that the basic operating force for closing a cutting device can be prescribed | regulated uniformly. Regardless of the manufacturing width of the cutting blade within the allowable range, the mutual crimping force of the cutting members is always substantially constant. Thereby, the replacement of the cutting member can be embodied without readjustment of the clamping force of the screw. If the size of the cutting member is different, depending on the cutting blade used, different elastic members with different spring stiffness can be applied and there is no need to change the coupling member.

  It is proposed that the elastic member is arranged to be supported along the axis of rotation at least indirectly by the housing of the cutting device, in particular by the grip housing and / or at least indirectly by the spacer member. The support to the housing has the advantage that the coupling member, in particular the coupling / spacer member, can be removed, for example for exchanging the cutting member, while the elastic member is subsequently fixed and accommodated in the cutting device . Furthermore, the cutting member to be removed or replaceable is fixed so that it does not fall out of the cutting device without an applied coupling member. Accordingly, it is possible to simplify the operational comfort of the cutting device particularly when the cutting member is replaced. The receiving part, in particular the threaded nut of the coupling member, is likewise housed in the housing of the cutting device, in particular in the grip housing, in particular fixedly detented by means of hexagonal shaped joining members. Thereby, for example, the operational comfort when removing the coupling member for exchanging the cutting member can be further enhanced.

  Furthermore, it is proposed that the elastic member is intended as a friction force adjusting member for adjusting the friction force between the respective cutting members. For example, the opening size can be tunable so that different materials to be cut, different cutting members, and / or different cutting purposes can be covered by a single cutting device in a simple manner.

  Furthermore, the elastic member is used to prevent plastic deformation of the cutting member during operation of the cutting device in at least a partial region, or to allow opening of the cutting member during operation of the cutting device in at least a partial region. It is proposed to be configured as an overload protection member for the cutting device. In other words, the threshold value is adjusted by the elastic member, and when the threshold value is exceeded, the cutting member is allowed to open elastically. In that way, even when the cutting device is overloaded, for example by attempting to cut too thick branches or too hard material, the cutting device is not damaged. Therefore, the elastic behavior and the desired opening protect the cutting device when some criteria are exceeded, which also lengthens its durability.

  In addition to this, it is proposed that the control device decouples the coupling member with respect to the cutting member with respect to rotation, in particular with respect to rotation so as to prevent rotation. Thus, there is an advantage that the rotation or turning of the cutting member in operation does not lead to loosening or rotation of the coupling member. For this purpose, the control device and / or the coupling member can guarantee at least one locking member for fixing with respect to the rotation of the control device and / or the coupling member about the axis of rotation. For example, a locking member arranged on the washer can be used, which cooperates with a locking notch in the grip housing or mounting part as a detent member. Furthermore, a coupling member and / or a spacer member, or in particular a ring for fixing the elastic member, may be supported on the grip housing as a detent.

  Furthermore, it is proposed that the coupling member can be screwed to a fixedly configured cutting member and / or in particular integrated at least with the spacer member.

  Furthermore, it is proposed that the cutting device is a gardening scissor, in particular a battery-powered gardening scissor, which allows manual as well as manual and machine-supported operation.

It is proposed that the cutting member has an insertion assisting part for inserting the cutting member into the cutting member housing part of the gardening scissors. The housing part for coupling with the cutting member housing part of the gardening scissors is preferably manufactured as a hole or a notch. Due to the notches, a coupling member, in particular in the form of a screw and / or sleeve, can be inserted for fixing in the cutting member receptacle of the garden scissors. The coupling member serves as a rotary bearing for the cutting member and together with it forms a rotary joint. There is an advantage that the replacement of the cutting member can be simplified by the insertion assisting portion.
Furthermore, it is proposed that the insertion aid is configured as an inclined surface and / or a circular surface configured not to be equal to a purely deburred edge and / or circular surface. A purely deburred edge shall mean, for example, a broken edge, in particular an edge broken at an angle of 45 °, in order to avoid injury when touching or grabbing the cutting member. A purely deburred edge may be a rounded edge. The lengths of the sides of the broken edge are substantially equal. In contrast, the inclined surface according to the invention has a clear difference with respect to the length of the chamfered edge leg, in particular in a ratio of at least 1: 3. By the inclined surface, the cutting member is formed in a wedge shape in the region of the insertion assisting portion. The inclined surface has an advantage that it serves to expand the cutting member accommodating portion when the cutting member is inserted or exchanged, particularly the cutting member accommodating portion subjected to the initial stress by the spring.

  Furthermore, it is proposed that the inclined surface has an angle with respect to the cutting surface of the cutting member of less than 30 °, in particular less than 15 °, particularly preferably less than 5 °. Thereby, when inserting a cutting member, there exists an advantage that the high spring force of the cutting member accommodating part of the scissors for gardening can be overcome. The thickness of the cutting member is reduced between the accommodating portion and the end of the cutting member, and is particularly reduced from 3.5 mm to 2.7 mm.

  Further, the insertion assisting portion extends at least substantially between the end of the cutting member facing away from the tip of the cutting member and a notch for fixing the cutting member in the cutting member receiving portion. It is proposed that “Substantially” in this context means an area greater than 50%, in particular greater than 75%, particularly preferably greater than 85%. Thereby, on the other hand, there exists an advantage that the expansion of the cutting member accommodating part of the scissors for gardening is realizable. Furthermore, this area does not become vulnerable around the notch. Furthermore, a sufficient abutment surface parallel to the cutting plane, which is supported at least in the axial direction by the other cutting member of the gardening scissors along the axis of rotation, in particular additionally supported by the lever of the cutting device, is obtained. Will be kept.

  Furthermore, it is proposed that the insertion assistant is configured to at least indirectly expand the elastic member arranged in the gardening scissors. The insertion assisting part has an advantage that when inserting the cutting member into the gardening scissors, the elastic member can be expanded only by the hand of the operator without any other assisting means. The elastic member can also realize other advantages, such as overload protection of gardening scissors, fixing of a cutting member to prevent unintentional dropping of the cutting member from the gardening scissors when replacing the cutting member, etc. Realized.

  In addition to this, it is proposed that the cutting member is a replacement cutting member for gardening scissors. There is the advantage that the cutting member can be replaced when the blade wears out, or it can be replaced in a simple manner, for example using different cutting blades to cut different materials.

  Furthermore, it is proposed that the cutting member has at least one shape joining member for non-rotatably coupling with a garden scissor lever that can be coupled with a gardening scissor grip member, the lever and the cutting member being a cutting member It has a notch coaxial with the cut surface, and these can be arranged so as to be turnable by the rotary joint of the scissors for gardening through the notch. In this way, there is an advantage that the operation of the driving force support type of the scissors for gardening can be realized. Furthermore, finger pinching protection can be realized by the arrangement of the lever. Good force transmission, as well as exchangeability of the cutting member is thereby improved.

Furthermore, a cutting device with a cutting member according to the invention, particularly preferably a battery-operated garden scissors, is proposed.
In addition, a cutting device is proposed having a control device that causes a mutually defined crimping force of the cutting member and other cutting members, and the insertion aid is intended to expand the control device when replacing the cutting member. The The control device preferably includes an elastic member. This has the advantage that overload protection, defined openings, simplified cutting member replacement etc. can be realized.

  Furthermore, a cutting device is proposed that allows manual as well as manual and machine-supported operations.

  Other advantages will be apparent from the following description of the drawings. In the drawings, an embodiment of the invention is shown. The drawings, the detailed description of the invention, and the claims contain numerous elements in combination. Those skilled in the art can consider these components individually for the purpose, and combine them to make other meaningful combinations.

It is a figure which shows the cutting device by this invention which has two cutting members and two grip members in the closed state. FIG. 3 is an open view of the cutting device with the force support operation deactivated and an enlarged view of the force sensor of the cutting device. In the cutting device shown in FIG. 2, the force support operation is activated. It is the detailed part I which shows the transmission apparatus unit of a cutting device, a clutch unit, a return unit, and a rope winch with typical sectional drawing. It is the detail part II which shows the clutch unit and return unit of a cutting device with typical sectional drawing. It is IV-IV sectional drawing which shows the clutch unit of a cutting device as a typical sectional view by a connection state thru | or support operation. It is IV-IV sectional drawing which shows the clutch unit of a cutting device as typical sectional drawing in a connection release state. It is VV sectional drawing which shows the clutch unit of a cutting device as typical sectional drawing. It is VI-VI sectional drawing which shows the reset unit of a cutting device as typical sectional drawing. It is a flowchart which shows the method of operating a cutting device. It is the detail part III which shows a block apparatus as sectional drawing in a 1st state, and the fragmentary figure of a block apparatus. It is a detail part III 'showing the block device in a second state as a sectional view, and a partial view of the block device. It is a figure which shows the cutting member accommodating part of a cutting device as sectional drawing of cutting surface III'-III '. It is the top view and side view which show the cutting member of a cutting device. It is a figure which shows the cutting member couple | bonded with the force transmission member.

  FIG. 1 shows a cutting device 10 according to the invention. The cutting device 10 is configured as a gardening cutting device. The cutting device 10 is configured as a gardening scissor. The cutting device is configured as a battery-driven cutting device 10. However, in principle, other configurations of the cutting device 10 are also conceivable, for example as carpet or tin scissors.

The cutting device 10 has two cutting members 12, 14 that are movable relative to each other (FIGS. 2, 3). The cutting members 12, 14 can pivot relative to each other. Here, the first cutting member 12 is configured as a passive cutting edge having a cutting edge. The second cutting member 14 is configured as an active cutting edge having a blade. Further, the cutting device 10 has two grip members 16 and 18 that are movable relative to each other. The grip members 16 and 18 can turn or turn relative to each other. The grip members 16 and 18 are configured to be able to turn with respect to each other via at least one rotary joint 42. Similarly, the cutting members 12 and 14 are configured to be able to turn with respect to each other via the rotary joint 42. The rotary joint 42 is disposed between the grip members 16 and 18 and the cutting members 12 and 14. The first grip member 16 and the first cutting member 12 are coupled to each other and arranged on different sides of the rotary joint 42. Further, the second grip member 18 and the second cutting member 14 are at least indirectly coupled to each other and arranged on different sides of the rotary joint 42. Here, a force transmission member 800 in the form of a lever 80 couples the second cutting member 14 with the second gripping member 18. The grip members 16, 18 are intended to be gripped by an operator. The grip members 16, 18 are intended to be gripped by the operator with the same hand. In principle, however, it is also conceivable that the cutting device 10 is intended for operation with both hands. In that case, in order to change at least partly the cutting force F _cut relative to the force applied to the grip members 16, 18, in particular relative to the operating force F _user , for example another lever member and / or Alternatively, a speed change member may be provided.

  Further, an opening spring 50 is disposed between the grip members 16 and 18. The release spring 50 is disposed closer to the rotary joint 42 than the free ends of the grip members 16 and 18 with respect to the longitudinal direction of the grip members 16 and 18. The release spring 50 is configured as a compression spring. The end of the opening spring 50 is supported by the first and second grip members 16 and 18. The release spring 50 is intended to press the grip members 16, 18 away from each other and thereby open the cutting device 10. Furthermore, the open spring 50 accommodates and / or drives a drive force transmission member 340, here in the form of a rope 34, which is operatively connected to the drive unit 20, in the hollow space formed thereby, as will be explained in detail later. Or intended to guide you.

  Further, a protective device 300 is disposed between the opening spring 50 and the rotary joint 42. The protective device 300 extends between both grip members 16, 18. The protective device 300 is preferably fixedly coupled to the second grip member 18. Furthermore, the protective device 300 is movably accommodated in the first grip member 16. The protective device may be configured, for example, as a nested device or as a stationary device. The protective device 300 protects at least one cable (not shown) of the cutting device 10 from external influences and / or is guided, for example, into the first to second grip members 16, 18. It is intended for secure accommodation between the first and second grip members 16,18. The cable is, for example, a cable for electrical connection of the energy storage unit 54 and the control unit 52 and / or the drive unit 20, or a sensor cable guided from 401 to the control unit 52. However, the protective device 300 also narrows or at least partially fills the free intermediate space 301 between the rotary joint 42 and the open spring 50 so that, for example, an operator mistakenly places his / her finger in this intermediate space. It is less likely to be pinched in a space, or it is less likely that a cut object such as a twig or a large branch is caught in this intermediate space. In that sense, the protective device 300 is also a shielding device for the intermediate space 301. At this time, the intermediate space 301 between the rotary joint 42 and the open spring 50 is particularly dangerous for the pinching of the object 17 such as the operator's finger or skin, but the force acting in this region is This is because it is high based on the lever ratio or lever length of the grip members 16 and 18 centering on the joint 42. Thus, the protective device 300 can ensure a safe and secure guidance of the electronic components between the grip members 16, 18. Furthermore, the protective device 300 serves to avoid injuries.

Furthermore, the cutting device 10 has a drive unit 20. The drive unit 20 is configured as an electric motor. The electric motor is intended to be supplied with a voltage less than 110V, in particular between 1V and 36V, preferably 3.6V. The drive unit 20 is disposed on the first grip member 16. The drive unit 20 is disposed in the grip housing 44 of the grip member 16. The drive unit 20 is disposed at the end of the first grip member 16 facing away from the cutting members 12 and 14. The grip housing 44 has two housing shells, in which the drive unit 20 is fixedly accommodated. The drive unit 20 is intended to support movement of the second cutting member 14 relative to the first cutting member 12 when in at least one operating state. The drive unit 20 is intended to support the closing movement of the cutting device 10 performed via the grip members 16 and 18 when the cutting operation is difficult. Thereby, the force F _user required for the operator to operate the cutting device 10 can be reduced.

  Furthermore, the cutting device 10 has a transmission unit 38. The transmission device unit 38 is disposed on the first grip member 16. The transmission device unit 38 is disposed in the grip housing 44 of the grip member 16. The transmission unit 38 is arranged on the side of the drive unit 20 facing the cutting members 12, 14. In this example, the transmission unit 38 is directly driven by the drive unit 20. Force transmission from the drive unit 20 to the transmission unit 38 is performed to the pinion 82 of the transmission unit 38 via the driven shaft 21 of the driven unit 20. The transmission unit 38 is configured as a gear transmission unit. The transmission unit 38 has at least one gear stage. The transmission unit 38 preferably has a plurality of gear stages. The transmission unit 38 has in particular a maximum of six gear stages, preferably four gear stages. At least one gear stage is configured as a planetary gear stage 381, 382, 383, 384. The transmission unit 38 is configured as a planetary gear unit (FIG. 4). The transmission ratio of the transmission unit 38 preferably has a ratio of 30: 1 to 300: 1, in particular 100: 1 to 150: 1, in particular 130: 1. However, in principle, other transmission ratios are possible. The transmission device unit 38 is supported by the grip member 16 via the housing 74 of the transmission device unit 38. The housing 74 of the transmission unit 38 is formed by at least one ring gear 385 of at least one planetary gear stage 381, 382, 383, 384. The housing 74 of the transmission unit 38 may be formed from individual ring gears arranged in series with planetary gear stages 381, 382, 383, 384. Force transmission within the at least one planetary gear stage 381, 382, 383, 384 is transmitted from the driven sun gear 386 via the planetary gear stage 387 of each planetary gear stage supported by the stationary ring gear 381. To the planetary carrier 388 that circulates together. Further, the planetary carrier 388 drives the sun gear of the next gear stage 382, 383, 384. The planetary carrier 389 of the last gear stage 384 forms the driven portion of the transmission unit 38.

Furthermore, the cutting device 10 has a clutch unit 22 (FIGS. 4 and 5). The clutch unit 22 is configured as an automatic switching clutch unit 22. “Automatic switching clutch unit” in this context means the clutch unit 22 which is operated externally, in particular of the control unit 52, for example without an electrical switching signal. This is preferably understood as a clutch unit 22 which is operated without an explicit switching signal in order to switch between the respective clutch states. This is preferably understood to be the clutch unit 22 operated on the basis of mechanical influence factors. This is preferably understood as a clutch unit 22 which is operated in dependence on at least one parameter on the drive side and / or on the driven side. Therefore, the clutch unit 22 may be configured in particular as a rotational speed operation type, a torque operation type, a direction operation type, and / or a force flow operation type. The automatic switching clutch unit 22 is configured as a freewheeling clutch. “Freewheeling clutch” in this context means an automatic switching clutch which is configured in particular in a directional operation and / or a force flow operation. The freewheeling clutch is preferably at least directional. For this purpose, the freewheeling clutch is opened and / or closed, in particular depending on the direction of rotation of the drive side and / or the driven side of the clutch unit 22 and / or depending on the direction of force action on the freewheeling clutch. It is preferably intended for the purpose. In the direction of the force action, for example, it can be distinguished whether the force acts on the freewheeling clutch from the driving side or the driven side. The freewheeling clutch depends in particular on the rotational direction of the drive side and / or the driven side when the drive unit 20 is in at least one operating state and / or depends on the direction of the force action on the freewheeling clutch. Preferably, it is intended for opening or closing. The clutch unit 22 is disposed on the first grip member 16. The clutch unit 22 is disposed in the grip housing 44 of the first grip member 16. The clutch unit 22 is intended for decoupling the drive unit 20 when in at least one operating state in which the drive unit 20 is deactivated. In particular, when the final position of the cutting device 10 is reached and / or when the operating force F _user exerted on the grip members 16, 18 is reduced, the drive unit 20 is automatically deactivated and the clutch unit 22 is driven. When the rotary motion of the unit 20 fades out, the connection is automatically released. The “decoupling of the driving unit” means in particular the decoupling of the driving unit 20 from the closing mechanism of the cutting device 10. The clutch unit 22 is also intended to decouple the transmission unit 38 when in at least one operating state in which the drive unit 20 is deactivated. The clutch unit 22 is intended for decoupling the drive unit 20 and / or the transmission unit 38 to embody at least a complete manual operation. “Complete manual operation” in this context means in particular the operating state in which the cutting device 10 operates without the support of the drive unit 20. This is preferably understood as an operating state in which the cutting device 10 is activated only by the operator's active force F _user . This is understood to be an operating state in which the drive unit 20 is disconnected and thus cannot be used to support the movement of the second cutting member 14 relative to the first cutting member 12. It is particularly preferred that Thereby, it is possible in particular to allow manual operation of the cutting device with a preferably light operation. Thereby, it can be realized that the cutting device 10 can be used without the drive unit 20, particularly when there is no energy supply and / or in the case of a light cutting operation, for example. The clutch unit 22 is preferably intended for accelerating the opening or expanding movement of the two cutting members 12, 14 or the two grip members 16, 18. When the cutting device 10 is opened or expanded, the clutch unit 22 is here from the rope winch 32 or the rope drum 320 of the rope winch 32 of the driving force transmission member 340 in the form of a rope 34, as will be explained further below. Allows for accelerated winding and / or unwinding. Thereby, the operation speed or processing speed of the cutting device can be improved, and the operational comfort can be enhanced. The number of possible cuts per unit time can be increased. After at least a prior closing process of the cutting device 10, at least the drive unit 20 supports the movement of the second cutting member 14 relative to the first cutting member 12, the clutch unit 22 connects the drive unit 20. It is intended to release and reconnect when a closing movement with force support at the motor is performed again.

  The clutch unit 22 has an inner rotating member 46 and an outer rotating member 48. The inner rotating member 46 is rotatable relative to the outer rotating member 48 in at least one state. The outer rotating member 48 is preferably coupled to the driven portion of the transmission unit 38. Part of the clutch unit 22 preferably forms part of the last gear stage 384 of the transmission unit 38. The outer rotating member 48 is preferably constructed in one piece with a part of the transmission unit 38, in particular with the planetary carrier 389 of the last gear stage 384 and / or the driven part of the transmission unit 38. The inner rotating member 46 and the outer rotating member 48 are fixed to each other by a coaxial coupling member 47 in particular. The coupling member 47 is configured as a coupling pin. The coupling member 47 fixes the inner and outer rotating members 46 and 48 to each other at least in the axial direction and / or in the radial direction. The connecting member 47 is preferably fixedly connected, in particular in a friction-joint manner, to the outer rotating member 48 and to the inner rotating member 46 with at least rotational play. The coupling shaft 47 is slidingly supported on the inner rotating member 46 and accommodated. The coupling shaft 47 further includes a shoulder 471 for axially fixing the inner rotating member 46 to the outer rotating member 48. The shoulder portion 471 is supported by a particularly rim-like surface of the inner rotation member 46.

  Furthermore, the clutch unit 22 has a plurality of clamp bodies 24 (FIGS. 6 and 7). “Clamp body” in this context means two rotations of the clutch unit 22 that are rotatably supported relative to each other, especially when in at least one operating state, in particular when the clutch unit 22 is closed. It shall mean the member of the clutch unit 22 intended for clamping between the members. The clamp body 24 is disposed between the inner rotating member 46 and the outer rotating member 48. The clamp body 24 is disposed around the inner rotation member 46 so as to be in a row in the circumferential direction. The clamp body 24 is configured as a cylinder and / or roll, in particular as a cylinder roll. However, in principle, other configurations of the clamp body 24, such as a ball or barrel shape, are also conceivable. The outer rotating member 48 has a plurality of ramp portions 49 continuous in the circumferential direction on the inner surface thereof. At this time, the number of the lamp portions 49 corresponds to the number of the clamp bodies 24. The clamp body 24 is movably disposed between the lamp portions 49, and the clamp body 24 is entrained when the outer rotating member 48 rotates. When the outer rotating member 48 is driven in the circumferential direction opposite the ramp gradient, the clamp body 24 moves between the outer rotating member 48 and the inner rotating member 46 to the narrower end region. It rolls and is pressed toward the inner rotating member 46. This is done in the drive direction 41 when the outer rotating member 48 is driven. Here, the “drive direction” means a rotation direction of the drive unit 20 that rotates particularly to support the cutting motion when the drive unit 20 is in a normal operation. Rotational entrainment of the inner rotating member 46 is performed. The clutch unit 22 is closed in this state, and this is shown in FIG. On the other hand, when the inner rotating member 46 is driven, the clamp body 24 stays in the valley portion of the ramp portion 49 or returns to the outer rotating member 48 regardless of the rotation direction. Leave an interval. The clamp body 24 is freely arranged between the rotating members 46 and 48. There is no rotational entrainment. The clutch unit 22 is open in this state, and this is shown in FIG. The outer rotating member 46 is driven by the drive unit 20 via the transmission unit 38. The transmission unit 38 and the drive unit 20 form the drive side of the clutch unit 22. When the inner rotating member 46 is driven in the direction opposite to the driving direction 41, the clamp body 24 moves into the valley of the ramp portion 49 and is also freely arranged between the respective rotating members 46 and 48. . The automatic switching clutch unit 22 is spatially disposed between the cutting members 12 and 14 and the drive unit 20. The automatic switching clutch unit 22 is spatially disposed between the rope winch 32 and the transmission unit 38. At least the rope winch 32 or the driven member of the rope winch 32 forms a driven portion of the clutch unit 22.

  The automatic switching clutch unit 22 has a retainer 26 that accommodates the clamp body 24 (FIGS. 6 and 7). The holder | retainer 26 accommodates the clamp body 24 in the accommodation area | region isolate | separated from each other. The cage 26 serves to position and guide the clamp body 24 in the circumferential direction. The cage 26 is intended to distribute the clamp bodies 24 evenly spaced apart from one another in the circumferential direction. In particular, when there are a plurality of clamp bodies 24, it is possible to realize that the clamp bodies 24 perform the same movement in the circumferential direction. The advantage is that a controlled clamping of the clamping body 24 can be made possible. The cage 26 is partially configured in an annular shape. The cage 26 is partially cylindrical. A plurality of arc-shaped webs protruding in the axial direction are mounted on the cylindrical main body of the cage 26, and these extend between the respective clamp bodies 24 in the circumferential direction. The cage 26 is supported by a rotating member 46 inside the clutch unit 22.

  Furthermore, the clutch unit 22 has a braking member 28 intended to decelerate the cage 26 (FIG. 8). The braking member 28 is configured as a spring member. The braking member 28 is configured as a kind of spiral spring. The braking member 28 is configured as a ring spring. One end of the braking member 28 is fixedly disposed in the notch 29 of the cage 26. The braking member 28 extends at least partially in a circumferential direction and spirals about the cage 26. The braking member 28 is wound around the cage 26. The outer surface of the brake member 28 is at least partially supported by a stop member 27 that radially surrounds the brake member 28 or retainer 26. The stop member 27 is configured as a fixing ring or a stop ring. The stop member 27 is disposed stationary on the clutch unit 22. The stop member 27 is coupled to the housing 23 of the clutch unit 22 in a fixed manner, in particular at least in a rotationally fixed manner, preferably in a friction-joint manner. For better force transmission, the inner surface of the housing 23 is structured in the area of the area intended for the placement of the stop member 27, in particular grooved. The braking member 28 allows the cage 26 to rotate relative to the stationary grip housing 44 in one rotational direction, particularly in the drive rotational direction, and in the opposite rotational direction, Prevent rotation. The brake member 28 enables the cage 26 to rotate in one direction relative to the housing 23 of the clutch unit 22 or the stop member 27, and in the opposite direction of rotation, the cage 26 rotation is blocked. At least one part of the braking member 28, in particular the majority of the outer surface, presses against the stop member 27 radially outwardly by a spring force. The braking member 28 is configured to allow freewheeling of the cage 26. The braking member 28 decelerates the retainer 26 in the anti-driving direction 410 or prevents rotation, or fixes the retainer. In the drive direction 41, the retainer is relative to the outer support surface or the stop member 27. 26 is configured to allow rotation, especially with low friction. In this type of overrunning clutch, when the cage 26 rotates in the driving direction 41, the free ends thereof are pulled together, and at that time, slides on the inner surface of the stopper member 27. On the other hand, when rotating in the counter-drive direction 410, this type of overrunning clutch expands and at least brakes or blocks the retainer 26 relative to the stop member 27. The braking member 28 is intended to prevent unintentional rotation of the cage 26. The braking member 28 is intended to prevent rotation of the cage 26 until there is a force action, in particular until there is a force action by the drive unit 20. The braking member 28 may be configured as a ratchet member or other member that causes freewheeling.

  Furthermore, the inner rotation member 46 has at least one, in particular two shape joining members 460, 460 '. The shape joining member may be configured as a flange or may have other shapes. The cage 26 also has a shape joining member 260. The rotating body 370 has a shape joining member 370. The stop member 27 has at least one shape joining member 270. The clutch unit 22 and the return unit via at least the shape joining members 260, 270, 370, 460, and 460 ′ and the accompanying frictional connection between the rotating body 37 and the inner rotating member 46. The members 31 are fixed and coupled to each other. That is, the axial fixation of these members is guaranteed. Alternatively, the fixing in the axial direction can be performed in other ways. There is the advantage that additional bearings such as plain bearings or rolling bearings can be dispensed with. Further, the outer rotating member 48 is also fixed in the axial direction with respect to the inner rotating member 46 via the coupling member 47, and is thus positioned relative to the clutch unit 22 in the axial direction via the stop member 27. The

Furthermore, the cutting device 10 has a return unit 31 (FIG. 9). The return unit 31 is disposed on the first grip member 16. The return unit 31 is disposed on the surface of the grip housing 44 of the grip member 16, preferably inside thereof. The return unit 31 is disposed in the clutch unit 22. The return unit 31 is preferably intended to ensure rope tension. The return unit 31 is preferably intended to bias the rope winch 32 with force, in particular with circumferential force. The return unit 31 is particularly preferably intended for inducing a tensile force on the rope 34 via the rope winch 32. In particular, the rope 34 is preferably held so as to be constantly tensioned via the return unit 31. The return unit 31 preferably induces a return force F _VS that is lower than the opening force F _OS of the opening spring 50 (FIG. 3). The return unit 31 ensures the tension of the rope 34 even in the case of complete manual operation. Thus, there is an advantage that unintentional entanglement of the rope 34 can be prevented. Furthermore, winding of the rope 34 can be guaranteed without driving force. The return unit 31 includes a spring member 36 and a rotating body 37. One end of the spring member 36 is fixedly coupled to the housing 23 of the clutch unit 22. The other end of the spring member 36 is fixedly coupled to the rotating body 37. The spring member 36 is disposed between the housing 23 of the clutch unit 22 and the rotating body 37 in the radial direction. The spring member 36 surrounds the rotating body 37 in the radial direction. The spring member 36 is wound around the rotating body 37 a plurality of times. The return unit 31 is coupled to the rope winch 32 at least indirectly, in particular via a rotating body 37. The rotating body 37 is fixed to the grip housing 44 or the housing 23 of the clutch unit 22 via the spring member 36 so as to be limitedly rotatable. The rotating body 37 is coupled to the rope winch 32 through the shaft 35. Furthermore, it is preferable that the rotating body 37 is coupled to the rotating member 46 inside the clutch unit 22 through the shaft 35 so as not to rotate. The rotating body 37 may be coupled to the inner rotating member 46 via at least one radial and / or axial shape joining member. The rotating body 37 has a coaxial notch. This notch is formed in a polygon. The inner contour of the notch is configured to correspond to the outer contour of the shaft 35. The spring member 36 is intended to bias the shaft 35 with a force in the drive direction 41. The spring member 36 is intended to bias the inner rotating member 46 with a force in the driving direction 41. The spring member 36 is intended to transmit a tensile force to the rope 34 via the rope winch 32. Via the spring member 36, the rope 34 should be constantly stressed and in particular held so as to be subjected to tensile stress. In order to simplify the assembly of the cutting device 10 or at least the clutch unit 22 and the return unit 31, the spring member 36 is subjected to an initial stress and is relative to the housing 23 of the clutch unit 23 by the assembly aid 360. Can be fixed. In that way, at least the return unit 31 can be mounted with initial stress as a module, in particular in the context of the clutch unit 22.
As a further alternative, the clutch unit 22 can be opened via the spring member 36 as soon as the drive motor is deactivated. In that way, the inner rotary member 46 can be rotated in the drive direction 41 via the spring member 36, and as a result, as soon as the drive motor 20 is deactivated, the retainer 26 is moved via the brake member 28. To slow down. In this way, there is an advantage that it is possible to avoid reversal of the rotational direction of the drive motor 20 for releasing the clutch unit 22.

  Further, the cutting device 10 has a rope winch 32 that can be driven by the drive unit 20. The rope winch 32 is disposed on the first grip member 16. The rope winch 32 is preferably configured so that it can be driven by the drive unit 20 via the clutch unit 22. The rope winch 32 is preferably configured to be disengaged from the drive unit 20 via the clutch unit 22 when in at least one operating state. The rope winch 32 can achieve a preferable force action of the drive unit 20. In particular, this makes it possible to support the movement of the second cutting member 14 relative to the first cutting member 12 with a simple design. The operator thus has the advantage of being supported by the drive unit 20 during the closing movement. Furthermore, a high torque can be preferably provided by the force action of the drive unit at the grip members 16 and 18. As a result, the output of the drive unit 20 can be kept low. The rope winch 32 is disposed in the grip housing 44 of the first grip member 16. The rope winch 32 is arranged on the side of the clutch unit 22 facing the cutting members 12 and 14. The rope winch 32 is coupled to the shaft 35. The shaft 35 is preferably configured integrally with the rope winch 32. The shaft 35 is supported via bearings, in particular via slide bearings 77, 77 '. The bearing 77 facing the cutting members 12 and 14 is supported by the grip housing 44 of the grip member 16. A bearing 77 ′ facing away from the cutting members 12 and 14 is supported by the housing 23 of the clutch unit 22. The shaft 35 is coupled to the clutch unit 22. The shaft 35 is non-rotatably coupled to the inner rotating member 46. Further, the shaft 35 is coupled to the rotating body 37 so as not to rotate. The shaft 35 has a polygonal cross-sectional shape. The shaft may have other cross-sectional shapes for coupling with the clutch unit 22, such as a square cross-sectional shape, a tongue-and-groove cross-sectional shape, or other shaft / hub / coupling cross-sectional shapes. Since the rope winch 32 is directly coupled to the rotating member 46 inside the clutch unit 22 and the rotating member 37 of the return unit, and both of these members are coupled to each other, the apparatus is very compact. Configured. The automatic switching clutch unit 22 may be partially incorporated in the rope winch 32. The clutch unit 22 can be partially surrounded by a rope winch 32. Further, the rope winch 32 forms a driven side of the clutch unit 22. The rope winch 32 has a rope drum 320. The rope drum 320 is substantially cylindrical. The axial length of the rope drum 320 is preferably intended for winding the rope 34 only in a single layer. The length of the rope drum 320 in the axial direction is preferably 5 to 15 mm, particularly 6 mm. In order to position the rope 34 with the rope drum 320, the rope drum forms a shoulder at least on the side facing the rotary joint 42. The diameter of the rope drum 320 is preferably shorter than 10 mm, particularly 7 mm. The rope winch 32 has an accommodating portion 33 for fixing the rope 34. The accommodating portion 33 is configured as an opening portion or a through hole in the horizontal axis direction of the rope winch 32 or the shaft 35. The accommodating part 33 has at least a substantially rectangular cross section. The accommodating portion 33 may be configured as an ellipse, a circle, a square, or the like. The accommodating part 33 can have a clamp sheet for accommodating the rope end part of the rope 34 preferably and securely. The shaft 35 preferably has a larger diameter in the region of the receiving part 33 than in the region of the rope drum 320. This is preferably 8 mm.

  Furthermore, the cutting device 10 has a rope 34. The rope 34 is preferably fixedly fixed to the second grip member 18 and attached to the first grip member 18 so as to be windable via the rope winch 32. The rope 34 is preferably arranged closer to the rotary joint 42 with respect to the grip members 16, 18 than to the end of the grip members 16, 18 spaced from the rotary joint 42, in particular closer than 10 cm, preferably the rotary joint 42. Between 6 and 8 cm. The rope is stretched between the grip members 16 and 18. The rope 34 may be supported by the first grip member 16 and / or the second grip member 18 via the guide member 780, in particular via the guide sleeve 78. The guide sleeve 78 is preferably configured as a hollow cylinder and has a flange 783 on one side. The flange 783 may preferably be intended for fixing to the first or second grip members 16, 18. Further, the guide member 780 can position and / or secure the open spring 50 with the first and / or second grip members 16, 18. The cylinder of the guide sleeve 78 faces the direction of the grip members 16, 18 facing each other, particularly laterally with respect to the longitudinal direction of the grip members 16, 18. A cylindrical outer surface 784 supports the inner or inner surface of the release spring 50. A curved portion 782 is provided in at least one opening of the guide sleeve 78, particularly in both openings. The radius of the curved portion 782 is preferably 0.6 mm. This contributes to the low friction support of the rope 34. Furthermore, the inner diameter of the cylinder expands on the taper in the direction of the flange 783. Thereby, there is an advantage that the rope 34 comes into contact with the guide member 780 only at the opening of the guide member 780 facing the other grip member 16, 18. A low-friction bearing and a non-contact bearing of the rope 34 inside the open spring 50 can be used and / or a rolling movement of the rope 34 over the entire drum width is possible. The rope 34 is stretched between the two grip members 16 and 18. The end of the opening spring 50 is accommodated in the guide sleeve 78 by the first and second grip members 16 and 18. The guide sleeve 78 is formed of a material harder than the grip members 16 and 18. The rope 34 is guided inside the opening spring 50. The open spring 50 is configured as a bamboo child spring, in particular as a double bamboo child spring. The open spring 50 preferably has a length of less than 100 mm, in particular 70 mm, when in a relaxed state. In the compressed state, the open spring 50 has a length shorter than 25 mm, in particular 17 mm. When in the compressed state, the opening spring 50 has an opening force of, for example, lower than 100N, in particular an opening force of 32N. The diameter of the spring is, for example, 4 to 8 mm, in particular 6.6 mm at the end, and is approximately 10 to 15 mm, in particular 11 mm, in the central part of the open spring 50. The opening spring 50 is preferably intended to allow an opening angle σ of up to 70 °, in particular up to 50 °, particularly preferably up to 35 °, of the grip members 16, 18 around the rotary joint 42. .

  The rope 34 may be supported with low friction inside the opening spring 50. The rope 34 may be guided so as not to be damaged inside the opening spring 50, thereby avoiding damage to the rope, for example due to the sharp edges of the opening spring 50. The opening spring 50 has an additional guide member 781 for protecting the rope 34 and guiding it inside the opening spring 50 with low friction. The rope 34 is preferably made of polyethylene, particularly ultra high molecular weight polyethylene (UHMW-PE). This is a Dyneema® rope 34. This preferably has a diameter of 2 mm and withstands a repetitive pulling force of eg 1000 N and winding with a rope drum 320. This type of rope 34 is particularly wear resistant. It can be arranged directly on the opening spring 50 or guided by the opening spring 50 without a member for reducing friction and damage. Such ropes have good winding properties, high strength, and good aging or use resistance. Alternatively, the rope 34 may be made of polyacryl, kevlar, wire, or the like. The rope 34 is at least indirectly coupled to the second grip member 18 in the region between the rotary joint 42b and the end of the second grip member 18 facing away from the cutting members 12,14. . A supporting force for closing the cutting members 12, 14 can be exerted on the driving force transmission member 340. The rope 34 is coupled to the second grip member 18 via a force transmission member in the form of a lever 80. The first grip member 16 can variably wind the rope 34 around the rope winch 32. Since the rope 34 is guided by the opening spring 50, there is an advantage that the operator can be prevented from being bothered by the rope 34 when operating the cutting device 10. Furthermore, damage, dirt, weather exposure, damage to the rope 50, and / or similar situations can be avoided, in particular, by using bamboo springs. The free length of the rope 34 can be changed by driving the rope winch 32, or the distance or the opening angle σ of the grip members 16, 18 and / or the opening angle of the cutting members 12, 14 can be changed. (FIGS. 2 and 3).

  The drive system for performing the force support operation of the manual machine tool is preferably formed by the following members: the drive motor 20, the transmission unit 38, the clutch unit 22, the return unit 31, and the rope winch 32. These members are arranged in series, particularly in the order described above. These members are preferably arranged on the first grip member 16. If necessary, the drive motor 20 drives the transmission unit 38, and the clutch unit 22 drives the rope winch 32 through this. The return unit 31 keeps the rope 34 under constant tension, and in connection with each member of the clutch unit 22, the clutch unit 22 is disengaged when switching from the force support operation to the operation without the force support. May be intended to do. In the grip housing 44, the drive system rotates the rope winch 32 facing the housing of the motor unit 20, the housing 74 of the transmission unit 38, the housing 23 of the clutch unit 22, and the cutting members 12 and 14. It is preferably supported or fixed only via the bearing 77. The clutch unit 22 and the return unit 31 are designed to be very compact and allow easy assembly. The first grip member 16 may be configured at least compactly or shortly thereby. The length of the first or second grip members 16, 18 is between the end of the first or second grip member 16, 18 facing away from the rotary joint 42 and the release spring 50. 150 mm or less, in particular 120 to 130 mm. The length of the first and second grip members 16 and 18 from the end facing away from the rotary joint 42 to the rotary joint 42 is preferably 200 mm or less, particularly 170 to 190 mm. The total length of the cutting device 10 is preferably 300 mm or less, in particular 200 to 300 mm, preferably 250 to 260 mm. The envelope circle diameter around the first grip member 16 in the grip region 62 is preferably 40 mm or less, in particular 30 to 35 mm. The envelope circle diameter around the second grip member 18 in the grip region is preferably 30 mm or less, in particular approximately 25 mm. Preferably, the cutting device 10 provides a tactile and / or ergonomic equivalent to a purely manual cutting device that is not equipped with a motor. Furthermore, it is possible to arrange the drive system and the energy storage unit 54 at at least one of the grip members 16 and 18.

  Further, at least one of the grip members 16, 18 is at least partially elastically and / or at least at the transition of the grip inner surface 600 to the side 610 of the at least one grip member 16, 18. It has a region 620 configured to be inclined and / or chamfered (FIG. 1). This region may be configured to retract in the direction of the dividing plane of the housing shell of the at least one grip member 16, 18 compared to the side surface 610. The grip inner surface 600 particularly means the grip inner sides facing each other. The opening angle β between the inclined regions 620 of both grip members 16, 18 is preferably between 30 ° and 150 °, or the grip members 16, 18 and the first or second grip member 16. , 18 between the inclined regions 620 and the angle between the virtual separation planes is half that. In particular, the opening angle β between the rotary joint 42 and the ends of the grip members 16, 18 facing away from the rotary joint 42 varies between at least 60 ° and 120 °. The side length s of the inclined surface is preferably 5 to 10 mm and can also vary with respect to its length. In the region of the end of the grip members 16 and 18 facing away from the rotary joint 42, a spacer member 630, particularly a soft stopper member, is provided on the grip inner surface. The outer surfaces 64 of the grip members 16, 18 are preferably also chamfered, in particular according to the envelope circle diameter of the respective grip members 16, 18 described above. The outer surface 64 preferably has a soft grip surface to improve operational comfort and / or has a structure to avoid slipping during operation. The grip members 16, 18 are intended to be at least almost in contact with each other. The elastic or chamfered construction of the grip inner surface has the advantage that undesirable pinching, particularly pinching of the operator's hand skin, can be avoided. This improves the operational safety of the cutting device 10. The envelope circle diameter around the closed cutting device 10 is preferably 100 mm or less, in particular the envelope circle diameter around the grip region 62 of the closed grip members 16, 18 is 70 mm or less, preferably 50 to 60 mm. .

  Further, the cutting device 10 has a control unit 52. The control unit 52 is disposed on the first grip member 16. The control unit 52 is disposed in the grip housing 44 of the grip member 16. The control unit 52 is intended for controlling the drive unit 20. In principle, not only pure open-loop control of the drive unit 20 but also closed-loop control of the drive unit 20 can be performed. For this purpose, the control unit 52 supplies energy to the drive unit 20. However, in principle, the drive unit 20 may be directly connected to the energy storage unit 54 via the switch 72. The control unit 52 is disposed between the drive unit 20 and the rotary joint 42. The control unit 52 is disposed between the rope winch 32 and the rotary joint 42. The control unit 52 is preferably connected to the display member 200. The display member 200 may display the activation or operation of the drive unit 20 or may allow other forms of status display. The display member 200 is a light. The light is an LED. The display member 200 can display to the operator an indication regarding the state of charge of the energy storage unit 54, the support force during the support operation, etc., for example through the color of light, and / or whether the support operation is active. You can make a display about it. The control unit 52 is connected to the energy storage unit 54. The drive unit 20 can be supplied with energy from the control unit 52 via the energy storage unit 54. The energy storage unit 54 has at least one storage battery. The storage battery 58 is composed of a lithium ion battery. However, in principle, other configurations of the at least one storage battery 58 are also conceivable. The storage battery 58 is disposed on the second grip member 18. The storage battery 58 is disposed in the grip housing 60 of the second grip member 18. The storage battery 58 is connected to the control unit 52 (FIGS. 2 and 3).

Further, the battery-powered manual machine tool or cutting device 10 has a block device 202. The block device 202 is disposed on the first grip member 16. The block device 202 is disposed in the grip housing 44 of the grip member 16. FIG. 11 shows a part or block device 202 of the cutting device 10 in a first state. The cutting members 12, 14 of the cutting device 10 are in a closed state. Block device 202 is in the first position. The blocking device 202 blocks the operation and / or tool movement of the cutting device 10 with respect to each other, in particular the cutting members 12, 14 or the grip members 16, 18. The block device 202 is configured as a mechanical block device 202. The block device 202 has a slide switch 204. The slide switch 204 is intended to block and / or close or release the charging interface 211. The slide switch 204 is intended to be slid by the operator, in particular by the operator's finger. The block device 202 has a locking member 206. The locking member 206 is intended to mechanically block or release the relative movement of the two cutting members 12,14 relative to each other. The slide switch 204 is mechanically coupled to the locking member 206. The slide switch 204 is coupled to the locking member 206 via the rotary joint 208. The block device 202 is arranged in the area of the control unit 52. The block device 202 is disposed in the region of the thick part of the grip member 16. The block device 202 or the slide switch 204 of the block device is preferably operable with at least the operator's thumb when the cutting device 10 is operated with one hand. The slide switch 204 is guided or supported through the groove 207 of the grip member 16 so as to be slidable in the longitudinal direction. The slide switch 204 can be slid relative to the grip member 16. The slide switch 204 is configured to close or at least partially release the opening 209 of the grip housing 44. The slide switch 204 is intended to cover, close, or release the charging interface 211. The slide switch 204 is intended for releasing the charging interface 211 when in the first position and closing the charging interface 211 when in the second position.
The locking member 206 is coupled to the rotary joint 208 at one free end. The locking member 206 has a lock member 210 at the other free end. The locking member 206 is engaged with the first and second cutouts 212 and 214 of the first and second cutting members 12 and 14 by the lock member 210 when the cutting members 12 and 14 are closed. Configured for. When in the closed state, the first and second cutouts 212 and 214 of the cutting members 12 and 14 are aligned in the direction of the rotation shaft 149 of the rotary joint 42. The locking member 206 or the locking member 210 is intended to engage the notches 212 and 214 aligned in this position.

  FIG. 12 shows the block device 202 in the second state. Block device 202 is in the second position. The cutting members 12, 14 of the cutting device 10 are in the open position. In the second state, the cutting members 12, 14 are movable relative to each other. The cutting device 10 is in a state intended for at least manual operation. In the second position of the block device 202, the block device 202 releases the mutual operation and / or tool movement of the cutting device 10, in particular the cutting members 12, 14 or the grip members 16, 18. The charging interface 211 is blocked or closed by the slide switch 204 of the block device 202. The locking member 206 does not enter the notches 212 and 214 of the cutting members 12 and 14. At least one of the notches 212 and 214 may be disposed in at least one structure unit that is non-rotatably coupled to one of the cutting members 12 and 14. For example, the notch 214 may be disposed on the lever 80. Both the slide switch 204 and the grip member 18 may be provided with a seal member (not shown) that enables the charging interface 211 to be sealed. In particular, the sealing member is arranged between the grip member 18 and the slide switch 204. The at least one sealing member preferably ensures sealing of the charging interface 211 when the blocking device is in the second position. In this way, other electronic components of the control unit 52 and the cutting device 10 that are at least in electronic contact with the charging interface 211 can also be protected against dust and moisture, especially during operation of the cutting device. There are advantages.

  Furthermore, the cutting device 10 has a force transmission member in the form of a lever 80. Lever 80 couples second cutting member 14 with second gripping member 18. The lever 80 has at least one shape joining member for coupling with the cutting member 14. The second grip member 18 is coupled to the lever 80 via at least one other rotary joint 65. The grip member 18 and the lever 80 are configured to be rotatable relative to each other at least in a limited manner. The grip member 18 and the lever 80 pivot around another rotating joint 65. The grip member 18 and the lever 80 are configured to be able to turn relative to each other about the turning shaft 66. This pivoting movement is limited at least through the inner contour of the hollow grip member 18. Further, this turning motion may be limited by the shape joining member configured in the grip member 18. Further, the grip member 18 is supported with respect to the lever 80 by a spring 68. The grip member 18 is supported relative to the lever 80 by a spring 68 at the free end of the lever 80.

Further, the cutting device 10 has a sensor 401. The sensor 401 is configured to sense an operating state that requires a force support operation. A sensor 401 or other sensor (not shown here) is used for supporting operation of the cutting device, particularly when the object 17 is arranged between the grip members 16, 18 for the purpose of operating safety. It is preferable to be able to sense an operating state that should be stopped and / or stopped. The sensor 401 is a force sensor intended for sensing a force acting on the second grip member 18, in particular relative to the first grip member 16 and / or relative to the lever 80. 40 is preferred. The force sensor 40 is preferably intended both for detecting an accurate force and for detecting only exceeding the limit force. The force sensor 40 is disposed on a force transmission member configured as the second grip member 18 and / or the lever 80. The force sensor 40 is preferably arranged so as to be incorporated in the second grip member 18. The force sensor 40 is disposed between the lever 80 and the grip member 18. The force sensor 40 has at least one spring 68 and a switch 72, in particular a microswitch. The spring 68 preferably supports the lever 80 against the outer surface 64 of the second grip member 18. For example, when the cutting device 10 is closed to cut the cut object 11 and the cutting force F _cut acts on the cutting members 12, 14, the second grip member 18 moves against the force transmission member or lever 80. In comparison, it can move against the spring force F _gs of the spring 68 and in particular can pivot. For this purpose, the lever 80 and the grip member 18 are arranged so as to be pivotable about another common rotary joint 65. The spring 68 connects the grip member 18 to the lever 80 in a so-called at least one operating state. The lever 80 has a notch, the grip member 18 has an extension, and this extension constitutes the rotary shaft 66 especially when the two grip shells of the second grip member 18 are joined. Then, the lever 80 can rotate or turn at least limitedly around this. The grip member 18 is preferably capable of pivoting with respect to the lever 80 with the rotation axis 66 as a center. This pivoting movement is ensured by at least the corresponding shape joining members on the second gripping member 18 and the lever 80. Furthermore, the spring 68, in particular the compressed spring 68, can also be a turning limiter. The second grip member 18 is preferably supported at the free end of the lever 80 with respect to the lever 80 by a spring 68. A housing member 69 is preferably fitted on the lever 80. The housing member 69 preferably serves as a housing part, in particular as a guide housing part for the spring 68 and preferably as a housing part for the switch 72, in particular as a plug-in housing part. When the operating force F _user exerted on the grip member 18 to operate the cutting members 12, 14 exceeds the spring force F _gs , the grip member 18 turns relative to the lever 80. In this example, the outer surface 64 of the grip member 18 approaches the lever 80.

The force sensor 40 has a switch 72 to detect pivoting motion or pivoting force, or at least to detect over threshold, movement of the spring 68, and / or the like. The switch 72 is configured as a microswitch, in particular as a break contact or a switching contact. The switch 72 has a trigger member configured as a pressing member. The pressing member is manufactured as a pivoting member 71, in particular as a pivoting lever, and is intended for operating the switch 72. The switch 72 preferably senses the outward turning or distance expansion of the switch 72 from the inner surface 63 of the second grip member 18. Thus, the switch 72 is activated when the turning member 71 turns outward. In other words, the switch 72 is deactivated when the turning member 71 is in contact with the switch 72, and is activated when the turning member 71 is turning outward with respect to the switch 72. It becomes. In this way, the switch 72 is closed when the turning member 71 is defined to turn outward. The turning member 71 is directly supported by the housing of the grip member 18 or is supported by an additional pressing member 81 or the like. Further, the pressing member 81 may be configured to be intended for selecting the sensitivity of the force sensor 40. The pressing member 81 is preferably a part of the force sensor 40 which is preferably disposed on another switch 73. This other switch serves as a support operation adjusting member. Another switch 73 is preferably configured to be slidable laterally with respect to the pivot member 71. Another switch 73 can slide in the direction of the rotary joint 42. Another switch 73 is arranged on the side of the second gripping member 18 facing the first gripping member 16. That is, another switch 73 is disposed on the inner surface 63 of the second grip member 18. In particular, an erroneous operation of another switch 73 during the cutting process can thereby be avoided. Another switch 73 is configured as a slide switch. Another switch 73 includes a pressing member 81 configured in a wedge shape. The pressing member 81 is intended to contact the turning member 71 in all operating states. By sliding another switch 73 with respect to the switch 72 or the turning member 81, the sensitivity of the force sensor 40 or the threshold value for operating the switch 72 can be changed. Particularly, the sensitivity of the force sensor 40 is changed when another switch 73 slides due to the trigonometric distance relationship of the pressing member 81 with respect to the turning member 71 through the lever length of the lever 80 inside the second grip member 18. can do. When another switch 73 slides in the direction of the first or second cutting member 12, 14, the switch 72 is activated for the first time with a higher operating force _Fuser . On the other hand, when another switch 73 slides in the opposite direction, the switch 72 is activated with a lower operating force F _user . Thus, the sensitivity of the force sensor 40 can be adjusted in a low-cost manner by mechanical means. For the support operation of the cutting device 10, different activation levels or thresholds can be adjusted, for example depending on the changing hand force of the operator. The further switch 73 preferably has three locking positions in relation to the switch housing, in particular in relation to the gripping member 18. Thereby, there is an advantage that three support operation levels can be defined.
With such a design, an additional on-state to activate a purely electronic alternative force or stroke sensor that would require constant energization to sense a defined threshold exceeded. The / off switch can be omitted. Thus, there is the advantage that the switch 72 and thus the support drive is activated only if the mechanical force of the spring 68 in the form of a threshold is exceeded. Or, in other words, the threshold is exceeded depending on the pivoting movement about the rotary joint 67 which is made difficult by the spring of the lever 80 inside the grip member 18, thereby turning on the switch 72. Thereby, it is possible to provide a force sensor 40 that is specially low-cost and simple in design.

Furthermore, a driving force transmission member 340 in the form of a rope 34 operatively connected to the driving unit 20 acts on the lever 80. That is, when the drive unit 20 is activated of the lever is biased by the driving force F _an,, closing movement of the cutting device 12, 14 is supported. Thus the lever 80 is the driving force F _an,, separated from a direct force action on the grip member 18. For example, when the object 17 is disposed between the grip members 16 and 18 during the force support operation of the cutting device 10, the grip members 16 and 18 cannot be moved to open further. The driving force _Fan moves the lever 80 in the grip member 18 toward the initial position, the switch 72 is opened, and the force support operation is completed. In this way, the force sensor 40 or the lever 80, the spring 68, and the switch 72 divide the force support operation for pressing and contracting the grip members 16 and 18. That is, as long as the object 17 is located between the respective gripping members 16, 18, the switch 72 necessarily opens and the drive unit 20 is deactivated, so that, for example, the operator's extremities and the skin are undesirable. There is no possibility of crushing or damage of the grip members 16, 18 when, for example, a thick branch is placed between them. In such a case, only the operating force F _user contributes to the crushing of the object 17. The arrangement of the lever 80 on the gripping member 18 makes it possible in particular to move the object 17 over the entire range between the other rotary joint 65 of the lever and the end of the gripping members 16, 18 facing away from the rotary joint 42. It is possible to stop the support operation by recognizing the arrangement. An additional sensor (not shown here) for recognizing the object 17 between the respective gripping members 16, 18 can be omitted. As described above, only the force sensor 40 that operates when the threshold is exceeded and activates the support operation and forcibly stops the support operation at the moment when the object 17 is disposed between the grip members 16 and 18 is required. There are advantages. Accordingly, in order to recognize the possibility of failure and risk of injury, as well as the control cost, various operation cases depending on the case-there is an object 17 between the grip members 16 and 18 where force transmission operation is necessary. Much lower by multiple alternative sensors.

However, in principle, another configuration of the force sensor 40 is also conceivable. For example, by a force sensor on the grip surface of the first or second grip member 16, 18 or by a stroke sensor for recognizing the relative movement between the second grip member 18 and the lever 80. Or for recognizing the operating force F _user acting on the grip members 16, 18 and / or caused by the object 17 between the grip members 16, 18, contrary to the closing movement of the grip members 16, 18 By other types of sensors for recognizing the acting reaction force. Alternative arrangements of spring 68, switch 72, or another switch 73 to embody similar functionality are also contemplated. Thereby, also the force currently applied to the grip members 16, 18 is detected, particularly the necessity of the force support operation, and the special case-the object 17 between the grip members 16, 18 and the stop of the force support operation-are detected. can do. Furthermore, the operating force of the one or more force sensors 40 can be freely defined by software. Furthermore, in principle, it is also conceivable that the force sensor 40 is able to distinguish between various degrees of depression of the switch 72 and of turning of the swivel member 71, which is thus the exact operation currently applied. This is because the force F _user can be estimated.

  Further, the force sensor 40 is connected to the control unit 52. The control unit 52 is intended to control the drive unit 20 depending on the signal of the force sensor 40. The control unit 52 is intended to activate the drive unit 20 when a defined measurement value of the force sensor 40 is exceeded. The control device 52 is intended to activate the drive unit 20 when the switch 72 of the force sensor 40 is closed. Furthermore, the control unit 52 is intended to stop the drive unit 20 when the switch 72 of the force sensor 40 is opened. A direct connection between the energy storage unit 54 and the driven unit 20 via the switch 72 and without the control unit 52 is also conceivable.

During operation of the cutting device 10, a distinction is made between a manual mode of the cutting device 10 in which all the cutting force F _cut is applied by the operator and a support mode in which a part of the cutting force F _cut is further applied by the drive unit 20. Can do.

The second cutting member 14 is an active cutting member 14 having a cutting edge. This is configured as a replaceable cutting member 14. The second cutting member 14 is coupled to the lever 80 of the cutting device 10 via at least one shape joining member 216 (FIGS. 11 and 12), and this lever is further coupled to the second grip member 18. . The shape joining member 216 is at least intended to transmit a force in the radial direction about the rotating shaft 420, but transmits an axial force F _ax to the lever 80 in the direction of the rotating shaft 420 or to the cutting member 14. May also be configured. A locking lug 220 is formed on the lever 80 and engages with the shape joining member 216 of the cutting member 14 when it is in a coupled state. In addition, at least one axial guide surface 332 is provided for inserting the cutting member 14 into the cutting member receiving portion 400.

FIG. 13 shows a cross-section III-III ′ of the cutting device 10 or the cutting member accommodating portion 400. The first and second cutting members 12, 14 are indirectly coupled via a shaft disposed along the rotation axis 420. This shaft forms a rotary joint 42 for the cutting members 12, 14. The shaft is formed by at least the coupling member 421. Further, a spacer member 423 is disposed on the coupling member 421. The spacer member 423 serves to keep the coupling member 421 spaced from the cutting members 12 and 14 in the axial direction at least in the radial direction in this example. The spacer member 423 may be fixed to the coupling member 421 via the fixing member 430. The coupling member 421 may be configured integrally with the spacer member 423. The coupling member 421 is configured as a screw. The screw can be loosened and has the advantage that it can be removed from the cutting device 10 or the grip housing 44 together with the spacer member 423. The spacer member 423 is a part of the control device 422 that induces the mutual defined crimping force F _anpr of the cutting members 12 and 14 in the direction of the rotating shaft 420 regardless of the clamping force F _klemm of the coupling member 421. The cutting members 12 and 14 have through holes 120 and 140 in the rotation axis direction 420, and the coupling member 421 is inserted through them. The radial surfaces of the through holes 120, 140 form a bearing surface that is disposed on the corresponding bearing surface of the sleeve that radially surrounds the spacer member 423 or the coupling member 421.

The spacer member 423 at least indirectly defines the minimum distance between the two clamping force transmission members, here in the form of a screw head 443 and in the form of a receiving part 425, in the direction of the rotary shaft 420, the receiving part being threaded As a nut, it is configured as a threaded nut which is received in particular in a non-rotating manner, and this is coupled with the screw. Such a force transmission member transmits the initial stress F _klemm of the coupling member 421 to the spacer member 423 at least indirectly. The spacer member 423, only a only part defined clamping force _{F Klemm} is transmitted to the axial face 121, 141 of the cutting member 12, 14. In this way, at least one axial position of both cutting members 12 and 14 along the rotation axis, or the frictional force between the cutting members 12 and 14 generated when the cutting members 12 and 14 are swung relative to each other, Regardless of the tightening torque or regardless of other influence quantities, it can be defined.

FIG.
The longitudinal length l of the spacer member 423 in the direction of the rotating shaft 420 allows the relative movement of the cutting members 12, 14, and in particular allows the pivoting movement of the cutting members 12, 14. This length preferably corresponds at least to the sum of the width dimensions b ₁ , b ₂ of both cutting members 12, 14 along the rotation axis 420. Thereby, the coupling member 421 irrespective of the clamping force _{F Klemm} of, or regardless of the tightening torque of the screw, the cutting at the time of non-operation state of at least the cutting device 10 a distance to maximum compression force _{F an,} member 12 Between which the operability of the cutting device 10 is guaranteed.

Further, the control device may include an elastic member 424 that urges the cutting members 12 and 14 along the rotation axis 420 with a mutually defined axial force or clamping force F _klemm . The elastic member 424 is configured as a spring, in particular as a compression spring, particularly preferably as a wave washer. The elastic member 424 is indirectly disposed between the axial surface 122 of the first cutting member 12 and the radial shoulder 426 of the spacer member 423. The elastic member is disposed between the axial surface 122 of the first cutting member 12 and the retaining ring 427. The retaining ring 427 is supported on the shoulder 426 of the spacer member 423. Further, the retaining ring 427 is also supported by the grip housing 44. Force of the elastic member 424 is compressed corresponds to the axial force F _ax, as pressing force F _an, between two cutting members 12 and 14, or to act as a contact pressure or normal direction force. Thus, the elastic member 424 adjusts the frictional force between the cutting members 12 and 14. Thereby, at least in part, a basic operating force for closing the cutting device 10 can be defined. Thereby, the basic distance between the cutting members 12, 14 can be adjusted. Within the acceptable range - - of the cutting member 12, 14 regardless of the production width, the mutual bonding force F _an, of the cutting member 12, 14 is kept substantially constant on the basis of the spring constant of the elastic member 424. Other tolerances of the cutting member housing 400 can also be compensated. In this way, there is an advantage that the cutting device 10 can cut a single sheet of paper or a tree branch. This is because the cutting interval can be adapted to the requirements given by the cut object 11. The replacement of the second cutting member 14 is possible without readjustment of the clamping force or tightening torque of the screw or without changing the intermediate member. Coupling member 423 to irrespective clamping force or tightening torque of the screws, crimping force F _an, between the cutting member 12, 14 is kept substantially constant. The corrugated washer preferably has an outer diameter in the range of 20 mm and an inner diameter in the range of 15 mm. The free axial length of the corrugated washer is preferably 5 mm or less, in particular 3.25 mm. The clamping force of the corrugated washer is preferably 15 to 25 N with a compressed length of 1.1 to 1.5 mm.

Further, when the coupling member 423 is loosened, and particularly when the coupling member and the spacer members 421 and 423 are completely removed, the retaining ring 427 is supported by the grip housing 44 in the axial direction. In this way, the axial force is at least one reduction of the spring F _ax to crimping force F _an, it is maintained for at least a first cutting member 12. Thereby, the second cutting member 14 to be replaced can be at least positioned without the coupling member 421 and / or protected against unintentional dropping from the cutting device 10.

In order to transmit at least the axial force F _ax of the elastic member 424, the first particularly stationary cutting member 12 is also slidable in the lateral direction, that is, slidable in the direction of the rotating shaft 420. The cutting member is fixed by the shape joining member in the rotation direction about the rotation axis. This shape joining member is supported by the corresponding shape joining member of the first grip member 16. In particular, the corresponding shape connecting member is a coupling member for coupling the grip shell of the first grip member 16.

The elastic member 424 also serves as an overload protection member of the cutting device 10. The elastic member prevents plastic deformation of the cutting members 12 and 14 when the cutting device 10 is operated. The elastic member 424 adjusts the threshold value _Fax that allows the cutting device 10 to open when the elastic member 424 is exceeded. When the spring force F _ax is exceeded, the elastic member bends until at least the second cutting member 14 abuts against the stopper member 442 in the axial direction, so that at least a slight axial sliding and / or tilting occurs. 1 inside the grip member 16 or along the rotation axis 420. The elastic behavior and desired force above a defined threshold can be adjusted through the spring force of the elastic member 424 and through the structure of the control device 422. In this example, the control device 422 includes at least a coupling member 421, a spacer member 423, a retaining ring 427, and an elastic member 424.

  The receiving portion 425 of the coupling member 421 in the form of a threaded nut is fixedly accommodated by the grip housing 44 of the cutting device 10 and is detained and accommodated via a hexagonal shape joining member 428. A lid 429 coupled to the grip housing 44 secures the threaded nut axially so that the threaded nut is positioned with the cutting device 10 even when the coupling member 421 is removed. Further, a sliding member 440 in the form of a sliding ring or a sliding disk is disposed between the grip housing 44 and the lever 80. The sliding disk is non-rotatably coupled to the grip housing 44 by at least one fixing member 441. Furthermore, the sliding member 440 is also disposed between the spacer member 423 and a receiving portion 425 configured as a threaded nut. In this way, the receiving portion is fixed between the sliding member 440 and the lid 429 in the axial direction, particularly when the coupling member 421 is removed. Furthermore, the sliding member 440 releases the connection from the portion 425 in response to the potential rotational movement of the spacer member 423.

FIG.
The control device 422 may be detented with the grip housing 44 and / or the stationary first cutting member 12 at least indirectly at one or more locations, so that the lever 80 through the first cutting member. The 12 relative movements do not lead to unintentional loosening of the coupling member 421. For this purpose, for example, the sliding member, the receiving portion 425, and / or the spacer member 423 are prevented from rotating and accommodated in the grip housing 44.

  The thickness of the first cutting member 12 is preferably 4 mm. The thickness of the second cutting member 14 is preferably 3.5 mm at its thickest portion. The thickness of the lever 80 is preferably 3.5 mm.

  FIG. 14 shows a cutting member configured as the second cutting member 14 as a plan view and a side view. The second cutting member 14 has a blade 143. The second cutting member 14 is a replaceable cutting member for the cutting device 10. The second cutting member 14 has a distal end 146 and an end 148 facing the distal end 146. In the region of the end 148, the second cutting member 14 has a notch 214. The notch 214 serves as a housing for the locking member 210 of the block device 202 of the cutting device 10 for blocking the mutual movement of the cutting members 12, 14. Furthermore, the second cutting member 14 has a shape joining member 216 configured as a corresponding locking notch for the locking lug 220 of the lever 80 of the cutting device 10. The shape joining member 216 serves to transmit the radial force of the grip member 18, particularly via the lever 80, centering on the rotary joint 42 of the cutting device 10. Furthermore, the end 148 of the second cutting member 14 is at least partially chamfered. Between the end 148 of the second cutting member 14 and a receiving part 142 configured as a notch 140 intended to rotatably receive the second cutting member 14 in the cutting device 10, a second The cutting member 14 has an insertion assisting portion 144 in the form of an inclined surface. The insertion assisting portion 144 is inclined with respect to the cut surface plane of the second cutting member 14 formed by the cut surface 145, but may be configured in a circular shape, particularly in a middle height. The insertion assisting portion 144 extends substantially radially from the center of the housing portion 142 to the end portion 148 of the second cutting member 14. The thickness of the second cutting member 14 decreases in the direction of the end portion 148 in the region of the insertion assisting portion 144. This thickness decreases from approximately 3.5 mm to 2.7 mm. The length of the side of the inclined surface is preferably 9 mm. The angle α of the inclined surface is preferably 30 ° or less, in particular 15 ° or less, very particularly preferably approximately 5 °. A placement surface 149 extends between the insertion assisting portion 144 and the blade 143. The mounting surface 149 is intended for coupling with the lever 80 in a shape-joined manner. The mounting surface is configured to be flat, and is oriented in the normal direction with respect to the direction of the notch 142 or in the normal direction with respect to the direction of the rotation shaft 420 of the garden scissors 10. Opposing cutting surfaces 145 are configured to slide along the first cutting member 12. The rotary shaft 420 or the rotary joint 42 is pivoted so as to slide along the first cutting member 12.

  Next, a method for operating the cutting device 10 will be described (FIG. 10).

The operation of the cutting device is preferably possible only when the block device is in the second position. The charging process of the cutting device is preferably not intended in this second position.
The cutting device 10 is always in the operating mode. As soon as the switch 72 is closed, the control unit 52 activates the drive motor 20. In principle, however, it is also conceivable that the cutting device 10 has in particular an operating switch, which makes it possible to activate and deactivate the cutting device 10. Alternatively, it would also be conceivable that the cutting device 10 can be automatically activated, for example by a defined continuous closing and / or continuous opening of the cutting device 10. Deactivation can be considered to be time-dependent, for example.

  When the operator intends to perform the cutting process during operation, for example when trying to cut a branch, the operator positions the object 11 to be cut between the cutting members 12, 14 of the cutting device 10. There must be. The cutting members 12 and 14 can then be closed by pressing the grip members 16 and 18 relative to each other, particularly like conventional horticultural scissors. The grip members 16 and 18 are manually compressed in step 1180 by the operator. Unless the spring force of the force sensor 40 is exceeded, the switch 72 does not output a signal. At step 1200, the control unit 52 monitors the force sensor 40 or switch 72 signal. Thus, the control unit 52 monitors the force required for the cutting process. The control unit 52 checks whether the switch 72 of the force sensor 40 is open or closed.

When the operator force F _user required for the cutting process is lower than the force defined by the force sensor 40 required to close the switch 72, the cutting device 10 is used in manual mode. If switch 72 is open, step 1200 is repeated at the next branch 1220. In the manual mode, the grip members 16 and 18 are manually rotated relative to each other by the operator. In the manual mode, the rope 34 is wound around the rope winch 32 by the return unit 31 or the spring member 36. At this time, since force acts on the clutch unit 22 from the driven side, the clutch unit 22 is in an open state. Accordingly, the rope winch 32 can rotate without the resistance of the transmission unit 38 and the drive unit 20. In this state, the rope 34 is kept tensioned by the spring member 36. For example, when the operator weakens the force on the grip members 16 and 18 due to the end of the cutting process, the grip members 16 and 18 are pushed open by the release spring 50 and the cutting device 10 is opened. At this time, the rope 34 is unwound from the rope winch 32 against the spring force of the spring member 36.

  When the energy storage unit 54 of the cutting device 10 is empty, the cutting device 10 can be used in a manual mode, in which case the drive unit 20 is inactive even when the force defined by the force sensor 40 is exceeded. Will remain deactivated. The drive unit 20 is not activated, so that the clutch unit 22 is also kept open.

If the operator force F _user required for the cutting process is greater than the force defined by the force sensor 40 required to close the switch 72, the cutting device 10 is utilized in support mode. Switching from manual mode to support mode takes place in principle during the cutting process. In the manual mode, the grip members 16 and 18 are manually rotated relative to each other by the operator. When the hard cut object 11 is cut, the grip members 16 and 18 must be pressed against each other by a large force. This is sensed by the control unit 52 if a force is applied that is large enough to close the switch 72 when the spring force F _gs is overcome. In response to this, the control unit 52 activates the drive unit 20. If it is determined at branch 1220 that switch 72 is closed, drive unit 20 is activated at step 1240 through control unit 52. The drive unit 20 is accordingly connected to the closing mechanism of the cutting device 10 when a defined operating force is exceeded. In response to this, the drive unit 20 drives the rotating member 46 inside the clutch unit 22 via the transmission unit 38. The drive unit 20 is driven in the drive direction 41. The clutch unit 22 is closed and the rope winch 32 is driven. The rope 34 is wound around the rope winch 32. Then, the grip members 16 and 18 are compressed or tightened by the driving force F _as in addition to the operating force F _user or tightened. In this operating state, the drive unit 20 urges the cutting members 12, 14 with an additional force, partly by manual movement. Driving force _{F the as} acts rope 34 through the rope winch 32 at this time.

At this time, the driving force _Fas acts on the lever 80 via the rope 34. As long as the operating force F _user is still greater than the force defined by the force sensor 40 required to close the switch 72, manual movement is still supported by the driving force _Fan . On the other hand, when the operating force F _user is reduced and the switch 72 is opened, the drive unit 20 is stopped at step 1260. The stop of the drive unit 20 in step 1260 is that the two grip members 16, 18 are closed or contact each other via the spacer member 630, or the object 17 is placed between the grip members 16, 18 for that purpose. This can also be realized when the force defined by the force sensor 40 required to close the switch 72 is also exceeded. The operating force F _user no longer acts on the force sensor 40 in this state. This is because the driving force _Fas acts on the lever 80 via the rope 34 and moves it to its initial position where the switch 72 opens. The drive unit 20 is then temporarily driven in the counter-drive direction 410 to open the clutch unit 22 at step 1280. The brake member 28 brakes the cage 26, and the clamp body 24 does not clamp the outer rotating member by the inner rotating members 46 and 48. The direction change of the drive unit 20 or the drive unit of the drive unit 20 in the counter drive direction 410 may be temporary for that purpose, and may be, for example, 100 milliseconds or less, particularly 40 milliseconds or less. The drive unit 20 is then deactivated in step 1300. After deactivation of the drive unit 20, the method can be started from the beginning.

  In principle, the clutch unit 22 can also automatically disconnect the drive unit 20 when there is no rotational movement. At this time, when the rotational movement of the drive unit 20 is stopped, the cutting device 10 can also be opened at least partially by the open spring 50 in principle. Rotate partially in the direction opposite to the drive direction 41. At this time, the inner rotating member 46 is also rotated with respect to the outer rotating member 48 of the clutch unit 22, and the clutch unit 22 is thus opened. However, in principle, other methods for opening the clutch unit 22 are also conceivable.

DESCRIPTION OF SYMBOLS 10 Cutting device 12,14 Cutting member 16,18 Grip member 17 Object 20 Drive unit 22 Clutch unit 24 Clamp body 26 Cage 28, 50, 36, 68, 424 Spring member 32 Rope winch 34 Rope 38 Transmission device unit 40 Force sensor DESCRIPTION OF SYMBOLS 42 Rotating joint 50 Opening spring 72 Switch 142 Storage part 143 Cutting blade 144 Insertion auxiliary part 149 Rotating shaft 202 Block device 211 Charging interface 300 Protection device 301 Intermediate space 340 Driving force transmission member 400 Cutting member storage part 401 Sensor 421 Coupling member 600 Grip Inner surface 730 Support operation adjusting member 800 Driving force transmitting member

Furthermore, a cutting member for gardening scissors having a cutting blade provided with a housing part for coupling with a cutting member housing part for gardening scissors is proposed, and the cutting member is a cutting member to the cutting member housing part for gardening scissors Has an insertion assisting part for inserting the.
Furthermore, it is proposed that the insertion aid is configured as an inclined surface and / or a circular surface, for example as an inclined surface and / or a circular surface configured not to be equal to a purely deburred edge.
Further, the inclined surface is smaller than 30 °, for example less than 15 °, are especially preferably proposed to have a smaller angles than 5 ° relative to the cutting plane of the cutting member.
Further, the insertion assisting portion extends at least substantially between the end of the cutting member facing away from the tip of the cutting member and a notch for fixing the cutting member in the cutting member receiving portion. It is proposed that
Furthermore, it is proposed that the insertion assisting part is configured to at least indirectly expand the elastic member arranged in the cutting member accommodating part.
It is further proposed that the cutting member is a replacement cutting member for gardening scissors.
Furthermore, it is proposed that the cutting member has at least one shape joining member for non-rotatably coupling with a horticultural scissor lever which can be coupled with a horticultural scissor grip member.
Furthermore, a cutting device having a first cutting member of this kind and a second cutting member of this kind, particularly preferably a battery-operated garden scissors is proposed.
The cutting device, it can have a control device which cause mutual defined pressing force F _an, the first cutting member and second cutting member, the insertion assisting unit control device when replacing a cutting member At least intended to expand.
Furthermore, the cutting device allows manual operation as well as manual and machine-assisted operation.

Further, a protective device 300 is disposed between the opening spring 50 and the rotary joint 42. The protective device 300 extends between both grip members 16, 18. The protective device 300 is preferably fixedly coupled to the second grip member 18. Furthermore, the protective device 300 is movably accommodated in the first grip member 16. The protective device may be configured, for example, as a nested device or as a stationary device. The protective device 300 protects at least one cable (not shown) of the cutting device 10 from external influences and / or is guided, for example, into the first to second grip members 16, 18. It is intended for secure accommodation between the first and second grip members 16,18. The cable is, for example, a cable for electrical connection of the energy storage unit 54 and the control unit 52 and / or the drive unit 20, or a sensor cable guided from the sensor 401 to the control unit 52. However, the protective device 300 also narrows or at least partially fills the free intermediate space 301 between the rotary joint 42 and the open spring 50 so that, for example, an operator mistakenly places his / her finger in this intermediate space. It is less likely to be pinched in a space, or it is less likely that a cut object such as a twig or a large branch is caught in this intermediate space. In that sense, the protective device 300 is also a shielding device for the intermediate space 301. At this time, the intermediate space 301 between the rotary joint 42 and the open spring 50 is particularly dangerous for the pinching of the object 17 such as the operator's finger or skin, but the force acting in this region is This is because it is high based on the lever ratio or lever length of the grip members 16 and 18 centering on the joint 42. Thus, the protective device 300 can ensure a safe and secure guidance of the electronic components between the grip members 16, 18. Furthermore, the protective device 300 serves to avoid injuries.

Furthermore, the cutting device 10 has a transmission unit 38. The transmission device unit 38 is disposed on the first grip member 16. The transmission device unit 38 is disposed in the grip housing 44 of the grip member 16. The transmission unit 38 is arranged on the side of the drive unit 20 facing the cutting members 12, 14. In this example, the transmission unit 38 is directly driven by the drive unit 20. Transmission of force from the drive unit 20 to the transmission unit 38 via the driven shaft 21 of the drive movement unit 20 is performed with the pinion 82 of the transmission unit 38. The transmission unit 38 is configured as a gear transmission unit. The transmission unit 38 has at least one gear stage. The transmission unit 38 preferably has a plurality of gear stages. The transmission unit 38 has in particular a maximum of six gear stages, preferably four gear stages. At least one gear stage is configured as a planetary gear stage 381, 382, 383, 384. The transmission unit 38 is configured as a planetary gear unit (FIG. 4). The transmission ratio of the transmission unit 38 preferably has a ratio of 30: 1 to 300: 1, in particular 100: 1 to 150: 1, in particular 130: 1. However, in principle, other transmission ratios are possible. The transmission device unit 38 is supported by the grip member 16 via the housing 74 of the transmission device unit 38. The housing 74 of the transmission unit 38 is formed by at least one ring gear 385 of at least one planetary gear stage 381, 382, 383, 384. The housing 74 of the transmission unit 38 may be formed from individual ring gears arranged in series with planetary gear stages 381, 382, 383, 384. Force transmission within the at least one planetary gear stage 381, 382, 383, 384 is transmitted from the driven sun gear 386 via the planetary gear stage 387 of each planetary gear stage supported by the stationary ring gear 381. To the planetary carrier 388 that circulates together. Further, the planetary carrier 388 drives the sun gear of the next gear stage 382, 383, 384. The planetary carrier 389 of the last gear stage 384 forms the driven portion of the transmission unit 38.

Furthermore, the cutting device 10 has a return unit 31 (FIG. 9). The return unit 31 is disposed on the first grip member 16. The return unit 31 is disposed on the surface of the grip housing 44 of the grip member 16, preferably inside thereof. The return unit 31 is disposed in the clutch unit 22. The return unit 31 is preferably intended to ensure rope tension. The return unit 31 is preferably intended to bias the rope winch 32 with force, in particular with circumferential force. The return unit 31 is particularly preferably intended for inducing a tensile force on the rope 34 via the rope winch 32. In particular, the rope 34 is preferably held so as to be constantly tensioned via the return unit 31. The return unit 31 preferably induces a return force F _VS that is lower than the opening force F _OS of the opening spring 50 (FIG. 3). The return unit 31 ensures the tension of the rope 34 even in the case of complete manual operation. Thus, there is an advantage that unintentional entanglement of the rope 34 can be prevented. Furthermore, winding of the rope 34 can be guaranteed without driving force. The return unit 31 includes a spring member 36 and a rotating body 37. One end of the spring member 36 is fixedly coupled to the housing 23 of the clutch unit 22. The other end of the spring member 36 is fixedly coupled to the rotating body 37. The spring member 36 is disposed between the housing 23 of the clutch unit 22 and the rotating body 37 in the radial direction. The spring member 36 surrounds the rotating body 37 in the radial direction. The spring member 36 is wound around the rotating body 37 a plurality of times. The return unit 31 is coupled to the rope winch 32 at least indirectly, in particular via a rotating body 37. The rotating body 37 is fixed to the grip housing 44 or the housing 23 of the clutch unit 22 via the spring member 36 so as to be limitedly rotatable. The rotating body 37 is coupled to the rope winch 32 through the shaft 35. Furthermore, it is preferable that the rotating body 37 is coupled to the rotating member 46 inside the clutch unit 22 through the shaft 35 so as not to rotate. The rotating body 37 may be coupled to the inner rotating member 46 via at least one radial and / or axial shape joining member. The rotating body 37 has a coaxial notch. This notch is formed in a polygon. The inner contour of the notch is configured to correspond to the outer contour of the shaft 35. The spring member 36 is intended to bias the shaft 35 with a force in the drive direction 41. The spring member 36 is intended to bias the inner rotating member 46 with a force in the driving direction 41. The spring member 36 is intended to transmit a tensile force to the rope 34 via the rope winch 32. Via the spring member 36, the rope 34 should be constantly stressed and in particular held so as to be subjected to tensile stress. In order to simplify the assembly of the cutting device 10 or at least the clutch unit 22 and the return unit 31, the spring member 36 is subjected to an initial stress and is relative to the housing 23 of the clutch unit 22 by the assembly aid 360. Can be fixed. In that way, at least the return unit 31 can be mounted with initial stress as a module, in particular in the context of the clutch unit 22.
As a further alternative, the clutch unit 22 can be opened via the spring member 36 as soon as the drive motor is deactivated. In that way, the inner rotary member 46 can be rotated in the drive direction 41 via the spring member 36, and as a result, as soon as the drive motor 20 is deactivated, the retainer 26 is moved via the brake member 28. To slow down. In this way, there is an advantage that it is possible to avoid reversal of the rotational direction of the drive motor 20 for releasing the clutch unit 22.

Furthermore, the cutting device 10 has a rope 34. The rope 34 is preferably fixedly fixed to the second grip member 18 and attached to the first grip member 16 so as to be windable via the rope winch 32. The rope 34 is preferably arranged closer to the rotary joint 42 with respect to the grip members 16, 18 than to the end of the grip members 16, 18 spaced from the rotary joint 42, in particular closer than 10 cm, preferably the rotary joint 42. Between 6 and 8 cm. The rope is stretched between the grip members 16 and 18. The rope 34 may be supported by the first grip member 16 and / or the second grip member 18 via the guide member 780, in particular via the guide sleeve 78. The guide sleeve 78 is preferably configured as a hollow cylinder and has a flange 783 on one side. The flange 783 may preferably be intended for fixing to the first or second grip members 16, 18. Further, the guide member 780 can position and / or secure the open spring 50 with the first and / or second grip members 16, 18. The cylinder of the guide sleeve 78 faces the direction of the grip members 16, 18 facing each other, particularly laterally with respect to the longitudinal direction of the grip members 16, 18. A cylindrical outer surface 784 supports the inner or inner surface of the release spring 50. A curved portion 782 is provided in at least one opening of the guide sleeve 78, particularly in both openings. The radius of the curved portion 782 is preferably 0.6 mm. This contributes to the low friction support of the rope 34. Furthermore, the inner diameter of the cylinder expands on the taper in the direction of the flange 783. Thereby, there is an advantage that the rope 34 comes into contact with the guide member 780 only at the opening of the guide member 780 facing the other grip member 16, 18. A low-friction bearing and a non-contact bearing of the rope 34 inside the open spring 50 can be used and / or a rolling movement of the rope 34 over the entire drum width is possible. The rope 34 is stretched between the two grip members 16 and 18. The end of the opening spring 50 is accommodated in the guide sleeve 78 by the first and second grip members 16 and 18. The guide sleeve 78 is formed of a material harder than the grip members 16 and 18. The rope 34 is guided inside the opening spring 50. The open spring 50 is configured as a bamboo child spring, in particular as a double bamboo child spring. The open spring 50 preferably has a length of less than 100 mm, in particular 70 mm, when in a relaxed state. In the compressed state, the open spring 50 has a length shorter than 25 mm, in particular 17 mm. When in the compressed state, the opening spring 50 has an opening force of, for example, lower than 100N, in particular an opening force of 32N. The diameter of the spring is, for example, 4 to 8 mm, in particular 6.6 mm at the end, and is approximately 10 to 15 mm, in particular 11 mm, in the central part of the open spring 50. The opening spring 50 is preferably intended to allow an opening angle σ of up to 70 °, in particular up to 50 °, particularly preferably up to 35 °, of the grip members 16, 18 around the rotary joint 42. .

The rope 34 may be supported with low friction inside the opening spring 50. The rope 34 may be guided so as not to be damaged inside the opening spring 50, thereby avoiding damage to the rope, for example due to the sharp edges of the opening spring 50. The opening spring 50 has an additional guide member 781 for protecting the rope 34 and guiding it inside the opening spring 50 with low friction. The rope 34 is preferably made of polyethylene, particularly ultra high molecular weight polyethylene (UHMW-PE). This is a Dyneema® rope 34. This preferably has a diameter of 2 mm and withstands a repetitive pulling force of eg 1000 N and winding with a rope drum 320. This type of rope 34 is particularly wear resistant. It can be arranged directly on the opening spring 50 or guided by the opening spring 50 without a member for reducing friction and damage. Such ropes have good winding properties, high strength, and good aging or use resistance. Alternatively, the rope 34 may be made of polyacryl, kevlar, wire, or the like. The rope 34 is at least indirectly coupled to the second grip member 18 in the region between the rotary joint 42b and the end of the second grip member 18 facing away from the cutting members 12,14. . A supporting force for closing the cutting members 12, 14 can be exerted on the driving force transmission member 340. The rope 34 is coupled to the second grip member 18 via a force transmission member in the form of a lever 80. The first grip member 16 can variably wind the rope 34 around the rope winch 32. Since the rope 34 is guided by the opening spring 50, there is an advantage that the operator can be prevented from being bothered by the rope 34 when operating the cutting device 10. Furthermore, damage, dirt, weather exposure, damage to the rope 34 , and / or similar situations can be avoided, in particular by the use of bamboo springs. The free length of the rope 34 can be changed by driving the rope winch 32, or the distance or the opening angle σ of the grip members 16, 18 and / or the opening angle of the cutting members 12, 14 can be changed. (FIGS. 2 and 3).

The force sensor 40 has a switch 72 to detect pivoting motion or pivoting force, or at least to detect over threshold, movement of the spring 68, and / or the like. The switch 72 is configured as a microswitch, in particular as a break contact or a switching contact. The switch 72 has a trigger member configured as a pressing member. The pressing member is manufactured as a pivoting member 71, in particular as a pivoting lever, and is intended for operating the switch 72. The switch 72 preferably senses the outward turning or distance expansion of the switch 72 from the inner surface 63 of the second grip member 18. Thus, the switch 72 is activated when the turning member 71 turns outward. In other words, the switch 72 is deactivated when the turning member 71 is in contact with the switch 72, and is activated when the turning member 71 is turning outward with respect to the switch 72. It becomes. In this way, the switch 72 is closed when the turning member 71 is defined to turn outward. The turning member 71 is directly supported by the housing of the grip member 18 or is supported by an additional pressing member 81 or the like. Further, the pressing member 81 may be configured to be intended for selecting the sensitivity of the force sensor 40. The pressing member 81 is preferably a part of the force sensor 40 which is preferably disposed on another switch 73. This other switch serves as a support operation adjusting member. Another switch 73 is preferably configured to be slidable laterally with respect to the pivot member 71. Another switch 73 can slide in the direction of the rotary joint 42. Another switch 73 is arranged on the side of the second gripping member 18 facing the first gripping member 16. That is, another switch 73 is disposed on the inner surface 63 of the second grip member 18. In particular, an erroneous operation of another switch 73 during the cutting process can thereby be avoided. Another switch 73 is configured as a slide switch. Another switch 73 includes a pressing member 81 configured in a wedge shape. The pressing member 81 is intended to contact the turning member 71 in all operating states. By sliding another switch 73 with respect to the switch 72 or the turning member 71 , the sensitivity of the force sensor 40 or the threshold value for operating the switch 72 can be changed. Particularly, the sensitivity of the force sensor 40 is changed when another switch 73 slides due to the trigonometric distance relationship of the pressing member 81 with respect to the turning member 71 through the lever length of the lever 80 inside the second grip member 18. can do. When another switch 73 slides in the direction of the first or second cutting member 12, 14, the switch 72 is activated for the first time with a higher operating force _Fuser . On the other hand, when another switch 73 slides in the opposite direction, the switch 72 is activated with a lower operating force F _user . Thus, the sensitivity of the force sensor 40 can be adjusted in a low-cost manner by mechanical means. For the support operation of the cutting device 10, different activation levels or thresholds can be adjusted, for example depending on the changing hand force of the operator. The further switch 73 preferably has three locking positions in relation to the switch housing, in particular in relation to the gripping member 18. Thereby, there is an advantage that three support operation levels can be defined.
With such a design, an additional on-state to activate a purely electronic alternative force or stroke sensor that would require constant energization to sense a defined threshold exceeded. The / off switch can be omitted. Thus, there is the advantage that the switch 72 and thus the support drive is activated only if the mechanical force of the spring 68 in the form of a threshold is exceeded. Or, in other words, the threshold is exceeded depending on the pivoting movement about the rotary joint 67 which is made difficult by the spring of the lever 80 inside the grip member 18, thereby turning on the switch 72. Thereby, it is possible to provide a force sensor 40 that is specially low-cost and simple in design.

Further, the force sensor 40 is connected to the control unit 52. The control unit 52 is intended to control the drive unit 20 depending on the signal of the force sensor 40. The control unit 52 is intended for activating the drive unit 20 when a defined measurement value of the force sensor 40 is exceeded. The control device 52 is intended to activate the drive unit 20 when the switch 72 of the force sensor 40 is closed. Furthermore, the control unit 52 is intended to stop the drive unit 20 when the switch 72 of the force sensor 40 is opened. Through the switch 72, and with no control unit 52, a direct connection between the energy storage unit 54 and drive kinematic unit 20 is also conceivable.

Longitudinal length l of the spacer member 423 in the direction of rotation axis 420 allows the relative movement of the cutting member 12, 14, in particular, to allow mutual pivoting movement of the cutting member 12, 14. This length preferably corresponds at least to the sum of the width dimensions b ₁ , b ₂ of both cutting members 12, 14 along the rotation axis 420. Thereby, the coupling member 421 irrespective of the clamping force _{F Klemm} of, or regardless of the tightening torque of the screw, the cutting at the time of non-operation state of at least the cutting device 10 a distance to maximum compression force _{F an,} member 12 Between which the operability of the cutting device 10 is guaranteed.

Control device 422 is at least indirectly in one or more positions, may have been the first cutting member 12 and the detent grip housing 44 and / or stationary, whereby the lever 80 to the first cutting The relative movement of the member 12 does not lead to unintentional loosening of the coupling member 421. For this purpose, for example, the sliding member, the receiving portion 425, and / or the spacer member 423 are prevented from rotating and accommodated in the grip housing 44.

Claims (21)

  The first and second cutting members (12, 14) movable relative to each other, the first and second grip members (16, 18) movable relative to each other, and at least one operating state At least one drive unit (20) intended to at least support movement of the second cutting member (14) relative to the first cutting member (12); and a spring member (28, 50, 36, 68, 424), for example, a gardening cutting device, the spring member (28, 50, 36, 68, 424) is inactivated by the drive unit (20). Braking for switching at least one automatic switching clutch unit (22) intended to disengage the drive unit (20) when in at least one operating state Cutting device characterized in that it is constructed as a timber (28).   The at least one self-switching clutch unit (22) is intended for decoupling the drive unit (20) to embody a complete manual operation when in at least one operating state. The cutting apparatus according to claim 1.   Cutting device according to any one of the preceding claims, characterized in that at least one automatically switching clutch unit (22) is configured as a freewheeling clutch.   Cutting device according to claim 3, characterized in that at least one automatically switching clutch unit (22) has at least one clamping body (24).   At least one automatic switching clutch unit (22) decelerates at least one retainer (26) that houses the clamp body (24) and at least one operating state when the retainer (26) is in operation. Cutting device according to claim 4, characterized in that it has a braking member (28) intended for the purpose.   At least one first and second cutting member (12, 14) movable relative to each other, first and second grip members (16, 18) movable relative to each other, and at least one operating state At least one drive unit (20) intended to at least support movement of the second cutting member (14) relative to the first cutting member (12), and a spring member In the cutting device (10) having (28, 50, 36, 68, 424), for example, a gardening cutting device, the spring member (28, 50, 36, 68, 424) is configured as a compression spring (68), for example. To recognize the object (17) between the grip members (16, 18) and / or to turn on / off the support operation, the driving force transmission member (800) and the first Cutting device which is a part of the force sensor (40) for detecting the relative movement between the grip member (18).   Between the second cutting member (14) and the second grip member (18), for example, a force transmission member (800) that is non-rotatably coupled to the second cutting member (14) is disposed. The force transmission member is operatively connected to the drive unit (20) and the second grip member (16, 16) to determine movement support, for example to determine whether the movement support is on or off. The cutting device according to claim 6, wherein the cutting device is arranged so as to be movable relative to 18).   A sensor (401), for example a force sensor (40) and / or a stroke sensor, detects relative movement, said sensor (401) preferably comprising a spring (68) and a switch (72), and for example said first or second Cutting device according to claim 7, characterized in that it has a support movement adjustment member (730) arranged on the grip inner surface (600) of the grip member (16, 18).   The first and second cutting members (12, 14) movable relative to each other, the first and second grip members (16, 18) movable relative to each other, and at least one operating state At least one drive unit (20) intended to at least support movement of the second cutting member (14) relative to the first cutting member (12); and a spring member (28, 50, 36, 68, 424), for example, a horticultural cutting device, the spring member (28, 50, 36, 68, 424) serves as an open spring (50) and the grip member (16 , 18) and at least one driving force transmission which is operatively connected to the driving unit (20) in at least one operating state inside the open spring (50). Cutting apparatus characterized by wood (340) is disposed.   Cutting device (10) according to claim 9, characterized in that the driving force transmission member (340) is a rope (34), for example a rope (34) made of polyethylene or ultra-high molecular weight polyethylene.   The cutting device (10) according to claim 9 or 10, characterized in that the driving force transmission member (340) is arranged in a contactless manner inside the open spring (50).   12. The cutting device (10) according to claims 9 to 11, characterized in that the open spring (50) is a bamboo child spring or a double bamboo child spring.   A protective device (300) is provided between the rotary joint (42) for connecting the grip members (16, 18) and the open spring (50) disposed between the grip members (16, 18). Cutting device (10) according to claims 9 to 12, characterized in that it is arranged between the members (16, 18).   The protective device (300) accommodates the cable of the cutting device (10), for example, an energy supply cable or a sensor cable, and / or the grip member (16, 18), the rotary joint (42), and the release spring. Forming a shielding device for shielding the intermediate space (301) delimited by (50), for example to avoid unintentional placement of at least one of the operator's limbs in the intermediate space (301). 14. Cutting device according to claim 13, characterized in that it is characterized in that   The first and second cutting members (12, 14) movable relative to each other, the first and second grip members (16, 18) movable relative to each other, and at least one operating state At least one drive unit (20) intended to at least support movement of the second cutting member (14) relative to the first cutting member (12); and a spring member (28, 50, 36, 68, 424), for example a gardening cutting device, the spring member (28, 50, 36, 68, 424) can be driven by the drive unit (20), for example. Stress for applying stress to the drive force transmission member (340) in the form of a rope (34), for example in the form of a rope (34) that can be at least partially wound on a rope winch (32) Cutting apparatus characterized by being constructed as a timber (36).   The spring member (36) is configured as a spiral spring (36), for example, as a spiral spring (36) coupled to and / or housed in a rope winch. The cutting device according to claim 15.   At least one transmission unit (38), for example, a multi-stage transmission unit (38) is provided in the form of, for example, a multi-stage planetary gear unit, and the transmission unit (38) is connected to the first grip member ( A cutting device according to any one of the preceding claims, characterized in that, for example, 16) is arranged between the drive unit (20) and the automatically switching clutch unit (22). .   Cutting device (10) according to any one of the preceding claims, for example a horticultural scissor or a battery-powered horticultural scissor, wherein the cutting device (10) is manually operated and manually / mechanically supported. The cutting apparatus characterized by enabling operation | movement of. The spring member (424) applies a defined crimping force (F _an ) between the two cutting members (12, 14) to each other in the direction of the rotation axis (149) of the cutting members (12, 14). Any one of the preceding claims, characterized in that it is configured as an elastic member (424) for generating _irrespective of the clamping force (F _klemm ) of the coupling member (421) of the members (12, 14). A cutting device (10) according to claim 1.   The cutting device (10) has a block device (202), which is a charging interface in a first position where the block device (202) blocks the operation and / or tool movement of a manual machine tool. (211) and the blocking device (202) blocks and / or covers the charging interface (211) in a second position in which the manual machine tool operation and / or tool movement is released. A cutting device (10) according to any one of the preceding claims.   The cutting device (10) has a cutting member (14) having a cutting blade (143) provided with a housing portion (142) for coupling with the cutting member housing portion (400) of the cutting device (10). The cutting member (14) has an insertion assisting part (144) for inserting the cutting member (14) into the cutting member accommodating part (400) of the gardening scissors (10). Cutting device (10) according to any one of the preceding claims.

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