Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
  • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
  • B27B17/00—Chain saws; Equipment therefor
  • B27B17/08—Drives or gearings; Devices for swivelling or tilting the chain saw
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
  • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
  • B27B17/00—Chain saws; Equipment therefor
  • B27B17/02—Chain saws equipped with guide bar
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
  • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
  • B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
  • B25F5/02—Construction of casings, bodies or handles

Definitions

• tool coupling devices for receiving a machine tool separating device designed as a closed system, which comprises a tool holding unit which has at least one tool holding element which is rotatably mounted about a movement axis of the tool holding element extending at least substantially perpendicular to a clamping plane of the tool holding element.
• the invention is based on a tool coupling device for receiving a machine tool separating device, in particular a machine tool separating device designed as a closed system, with at least one tool holding unit having at least one tool holding element rotatably mounted about a movement axis of the tool holding element extending at least substantially perpendicular to a clamping plane of the tool holding element is.
• the tool holding element at least starting from a tool fixing position of the tool holding element about the axis of motion of the tool holding element, be rotatably mounted in a tool coupling position of the tool holding element along an angular range having an angular dimension which is smaller than 360 °.
• the tool holding element is at least starting from a tool fixing position of the tool holding element about the axis of movement of the tool holding element. ment in a tool coupling position of the tool holding member along an angular range rotatably mounted, which has an angular extent which is smaller than 180 °, preferably smaller than 90 ° and particularly preferably smaller than 20 °.
• the tool holding element is designed as a clamping disk.
• the tool coupling device is preferably provided to receive the machine tool separating device in a form-locking and / or non-positive manner or to fix the machine tool separating device by means of a positive and / or non-positive connection by means of the tool holding unit to a base body of the tool coupling device
• the tool holding element preferably exerts a holding force in the direction of the main body on a guide unit of the machine tool parting device for fixing the machine tool parting device to the main body by means of a positive locking connection
• the machine tool parting device is preferably used to transmit drive forces to the machine tool parting device received by the tool coupling device or on the main body of the Malawikopplungsvorvor fixed.
• the tool holding element preferably exerts a holding force on the machine tool separating device, at least in one state, in particular in at least one state of the machine tool separating device connected to the tool coupling device.
• the tool holding element is particularly preferably provided for generating a holding force in at least one tool fixing position of the tool holding element.
• substantially perpendicular is intended here to define, in particular, an orientation of a direction relative to a reference direction, the direction and the reference direction, in particular in one plane, including an angle of 90 ° and the angle a maximum deviation from, in particular, smaller 8 °, advantageously less than 5 °, and particularly advantageously less than 2 °
• the term "clamping plane” should in particular define a plane which forms at least one clamping surface of the tool holding element.
• the clamping plane is preferably provided at least in the tool fixing position of the tool holding element for generating a holding force, in particular a clamping force, for fixing a machine tool separating device on the main body of the tool coupling device.
• the clamping plane or the clamping surface is preferably located at least in the tool fixing position. tion of the tool holding member at least on a guide unit of the machine tool separating device.
• the clamping plane of the tool holding element extends at least substantially perpendicular to a rotational axis of a drive element of the tool coupling device rotatably mounted in the main body of the tool coupling device.
• tool fixing position is intended to specifically define a position of the tool holding member in which the tool holding member applies a holding force to a machine tool separating device disposed on the main body of the tool coupling device.
• a position of the tool holding element is to be defined, in which a machine tool separating device can be coupled to the main body or to a tool receiving element of the tool coupling device.
• the tool holding member is preferably formed differently from a screw.
• Machine tool separating device can be achieved.
• the tool holding unit has at least one spring element which engages the tool holding element with a spring force.
• a spring element is in particular a macroscopic
• Element are understood to have at least two spaced apart ends, which are elastically movable in a normal operating state along a movement distance relative to each other, wherein the movement distance is at least greater than 0.5 mm, in particular greater than 1 mm, preferably greater greater than 2 mm and particularly advantageously greater than 3 mm, and which in particular produces a counterforce which is dependent on an elastic movement of the ends relative to one another and which is preferably proportional to the elastic movement of the ends, which counteracts the change.
• a "macroscopic element” is to be understood as meaning, in particular, an element with an extension of at least 1 mm, in particular of at least 5 mm and preferably of at least 10 mm, the spring element being able to act as a tension spring, a compression spring, a torsion spring, a bending spring, etc. - be formed.
• the spring element is designed as a helical compression spring or as a leg spring.
• the spring element has another, a skilled person appear appropriate design.
• the spring element is designed as a leg spring, which acts on the tool holding element along a circumferential direction extending in the clamping plane with a spring force.
• a rotational movement can advantageously be achieved after a cancellation of an actuating force of an operator on the tool holding element about the axis of movement of the tool holding member.
• a high level of operating comfort can be achieved.
• a secure fixing of a machine tool separating device can advantageously be achieved.
• the tool holding unit has at least one movement limiting element which is provided to limit a movement distance of the tool holding element.
• the movement limiting element preferably engages in a recess of the tool holding element.
• the movement limiting element is preferably designed as a limiting bolt.
• the movement limiting element is designed as an extension, against which abuts an end, an edge or an extension of the tool holding member.
• structurally simple limitation of a movement distance of the tool holding element can be achieved.
• the tool holding unit at least one
• the pressing element which is provided to generate a spring force in the direction of a form-fitting recess of the mold clamping element.
• the pressing element is designed as a spring plate.
• the pressure element has another, a skilled person appear appropriate design, such as a design as a coil spring, as Evolutfeder, as a plate spring, etc.
• the pressure element is provided to a in the form-fitting recess introduced and corresponding to the form-fitting recess holding member of a machine tool separating device to act with a spring force.
• the tool holding element has at least one form-fitting recess which has at least two functional areas.
• a "functional region” is to be understood here as meaning, in particular, a region of the positive engagement recess intended to fulfill a predetermined function
• the functional areas are designed as two interlocking or overlapping pitch circles having different diameters, and may be advantageous for fixing a retaining element along a direction extending at least substantially parallel to an insertion direction of a retaining element
• a structurally simple form-fitting connection between the tool-holding element and a toolmill can advantageously be achieved ash separator can be achieved.
• the tool holding unit has at least one operating element for actuating the mold-form-locking element.
• a "control element” is to be understood in particular as an element which is intended to receive an input quantity from an operator during an operating process and in particular to be contacted directly by an operator, whereby a touch of the element is sensed and / or an on
• the operating element is rotatably or pivotably mounted about an actuating axis of the operating element extending at least substantially parallel to the movement axis of the tool holding element parallel ", an orientation of a direction should be relative to a reference direction, in particular in a plane, understood, the direction relative to the reference direction has a deviation, in particular less than 8 °, advantageously less than 5 ° and particularly advantageously less than 2 °.
• the operating element is preferably designed separately from the tool holding element.
• the operating element is preferably coupled by means of an actuating extension of the tool holding element, which engages in a recess on the operating element, in terms of movement technology with the tool holding element.
• the operating element is formed integrally with the tool holding element.
• the operating element is coupled in terms of movement technology to the tool holding element in another manner that appears appropriate to a person skilled in the art.
• the tool coupling device comprises at least one drive element which is rotatably mounted about an axis of rotation extending at least substantially parallel to a movement axis of the tool holding element.
• the movement axis of the tool holding element preferably extends at least substantially perpendicular to the rotational axis of the drive element of the tool coupling device or a portable machine tool that is rotatably mounted in the main body of the tool coupling device and comprises a tool coupling device.
• the invention is based on a portable power tool with a tool coupling device according to the invention.
• the tool coupling device is preferably provided for the positive and / or non-positive coupling with a machine tool separating device.
• a "portable power tool” is to be understood here as meaning, in particular, a power tool, in particular a power tool, which can be transported without transport by an operator kg and more preferably less than 5 kg. Partly a portable machine tool can be achieved on the particularly comfortable a machine tool cutting device can be arranged.
• the invention is based on a machine tool system having a machine tool according to the invention and a machine tool separating device which has at least one cutting strand and at least one guide unit which forms a closed system together with the cutting strand.
• a "cutting strand” is to be understood here as meaning, in particular, a unit which is intended to locally neutralize an atomic cohesion of a workpiece to be machined, in particular by means of a mechanical separation and / or by means of a mechanical removal of material particles of the workpiece
• the cutting strand is preferably designed as a cutting chain, but it is also conceivable for the cutting strand to be separated from at least two physically separated parts and / or at least partially for separating and / or removing material particles of the workpiece from a surface of the workpiece another, a skilled person appear appropriate design, such as a configuration as a cutting line on which cutting elements are fixed.
• guide unit is intended here to define in particular a unit which is intended to exert a constraining force on the cutting strand at least along a direction perpendicular to a cutting direction of the cutting strand, in order to allow movement of the cutting strand along the cutting direction
• a direction can be understood, along which the cutting strand for generating a cutting gap and / or for removal and / or removal of material particles of a workpiece to be machined in at least one operating state due to a driving force and / or a drive torque, in particular in the guide unit , is moved.
• the cutting strand is moved in an operating state along the cutting direction relative to the guide unit.
• closed system is intended here to define, in particular, a system which comprises at least two components which are assigned by means of a
• the tool coupling device Cooperating in a disassembled state of the system from a system superordinate system, in particular the tool coupling device, maintain a functionality and / or which are connected captive in the disassembled state.
• the at least two grain Components of the closed system for an operator at least substantially inextricably linked.
• at least substantially insoluble should be understood in particular a connection of at least two components, which only with the aid of separation tools, such as a saw, in particular a mechanical saw, etc., and / or chemical release agents, such as solvents, etc. , are separable from each other.
• the machine tool separating device in particular, has a maximum dimension of less than 10 mm, preferably less than 8 mm and particularly preferably less than 5 mm, viewed along a direction running at least substantially perpendicular to a cutting plane of the machine tool separating device.
• the dimension is formed as the width of the machine tool separating device.
• the power-tool parting device viewed along the direction running at least substantially perpendicular to the cutting plane of the power-tool parting device, has an at least substantially constant maximum dimension along an overall length of the power-tool-splitting device.
• the power-tool parting device is preferably provided to produce a cutting gap which, viewed along the direction running at least substantially perpendicular to the cutting plane of the machine-tool separating device, has a maximum dimension of less than 5 mm.
• the tool coupling device according to the invention, the portable power tool according to the invention and / or the power tool system according to the invention should / should not be limited to the application and embodiment described above.
• the tool coupling device according to the invention, the portable power tool according to the invention and / or the machine tool system according to the invention for performing a function described herein may have a different number than a number of individual elements, components and units mentioned herein. drawing
• Fig. 1 shows a portable power tool according to the invention with a tool coupling device according to the invention in a schematic representation
• Fig. 2 is a sectional view of the portable power tool according to the invention and the tool coupling device according to the invention in a schematic representation.
• FIG. 1 shows a portable machine tool 38 with a tool coupling device 10 for the positive and / or non-positive coupling of a power-tool parting device 12 (FIG. 2).
• the portable power tool 38 and the power tool separating device 12 together form a machine tool system.
• the machine tool separating device 12 comprises at least one cutting strand 40 and at least one guide unit 42 for guiding the cutting strand 40.
• the guide unit 42 and the cutting strand 40 together form a closed system.
• the power tool separating device 12 is formed as a closed system.
• the portable power tool 38 has a power tool housing 44, which encloses a drive unit 46 and a gear unit 48 of the portable power tool 38.
• the drive unit 46 and the gear unit 48 are for generating a on the machine tool separating device 12th transferable drive torque operatively connected to one another in a manner already known to a person skilled in the art.
• the transmission unit 48 is designed as an angle gear.
• the gear unit 48 comprises a latching clutch unit 82, which is intended to prevent damage to gears of the gear unit 48 as a result of overloading. The overload can be caused for example by a clamping of the cutting strand 40 in a workpiece.
• the drive unit 46 is designed as an electric motor unit. However, it is also conceivable for the drive unit 46 and / or the gear unit 48 to have another configuration that appears meaningful to a person skilled in the art, such as, for example, an embodiment of the
• Drive unit 46 as a hybrid drive unit or as a combustion drive unit, etc. and / or an embodiment of the gear unit 48 as a worm gear, etc.
• the drive unit 46 is provided to drive the cutting strand 40 of the power tool cutting device 12 in at least one operating state via the gear unit 48.
• Guide unit 42 of the power tool separating device 12 along a cutting direction of the cutting strand 40 relative to the guide unit 42 moves.
• the cutting strand 40 is moved circumferentially around the guide unit 42 in one operation.
• the tool coupling device 10 is provided for receiving the machine tool separating device 12 designed as a closed system.
• the tool coupling device 10 comprises at least one tool holding unit 14 which has at least one tool holding element 16 which is rotatably mounted about a movement axis 18 of the tool holding element 16 extending at least substantially perpendicular to a clamping plane of the tool holding element 16.
• the tool holding element 16 is at least starting from a tool fixing position of the tool holding member 16 about the movement axis 18 of the tool holding member 16 rotatably mounted in a Malawi- coupling position of the tool holding member 16 along an angular range having an angular extent which is smaller than 360 °.
• the tool holding unit 14 has at least one movement limiting element 22, which is provided to limit a movement distance of the tool holding element 16.
• the movement limiting element 22 limits a movement distance of the tool holding element 16 about the movement axis. se 18 of the tool holding member 16 to an angular range with an angular extent of less than 20 °.
• the tool holding member 16 is rotated to a coupling and / or removal of the power tool separating device 12 from the tool fixing position by an operator by an angular distance of less than 20 ° about the movement axis 18 of the tool holding member 16.
• the tool holding unit 14 has two movement limiting elements 22, 50, which are provided to limit a movement distance of the tool holding element 16.
• the movement limiting elements 22, 50 are formed as a circular extension. However, it is also conceivable that the movement limiting elements 22, 50 have another, a person skilled in the appear appropriate design, such as a design as a rib, web or groove, etc.
• the movement limiting elements 22, 50 are arranged uniformly spaced from one another on a base body 52 of the tool coupling device 10 along a circumferential direction running around the movement axis 18 of the tool holding element 16.
• the movement limiting elements 22, 50 are formed integrally with the base body 52.
• the tool holding element 16 has at least two recesses 54, 56 for receiving the movement limiting elements 22, 50.
• the recesses 54, 56 are equally spaced from one another along the circumferential direction extending about the movement axis 18 of the tool-holding element 16.
• Each of the recesses 54, 56 is formed here as a slot.
• the recesses 54, 56 can have another configuration which appears expedient to a person skilled in the art, such as a configuration as a groove, as a web, as a rib, etc.
• the recesses 54 delimit , 56 a movement distance of the tool holding member 16.
• the tool holding member 16 is in this case formed as a clamping disk.
• the movement limiting elements 22, 50 each have a fastening region 58, 60 which is provided in each case with a fastening element 58, 60. ment 62, 64 of the tool holding unit 14 record.
• the attachment portions 58, 60 are each formed as an internal thread.
• the fastening elements 62, 64 are designed as screws, which are provided for attachment of a tool receiving element 66 of the tool holding unit 14 on the base body 52.
• the tool receiving element 66 has a receiving recess for at least partially receiving the machine tool separating device 12 in a state of the machine tool separating device 12 that is coupled to the tool coupling device 10.
• the tool receiving element 66 has a rotational play opening 68, in which a drive element 34 of the tool coupling device 10 is arranged.
• the drive element 34 viewed along an at least substantially perpendicular to a rotational axis 36 of the drive member 34 extending direction, relative to the main body 52 spaced from a the rotary play opening 68 bounding edge region of the body 52 is arranged.
• the drive element 34 is designed as a drive gear.
• the base body 52 comprises a bearing recess 70, in which a bearing element 72 of the tool coupling device 10 is arranged to a rotatable mounting of the drive element 34 ( Figure 2).
• the bearing element 72 is designed as a roller bearing. However, it is also conceivable that the bearing element 72 has another, a skilled person appear appropriate design.
• the drive element 34 is provided to transmit a drive force of the drive unit 46 to the cutting strand 40.
• the drive element 34 engages in the cutting strand 40 in a state connected to the tool coupling device 10 state of the machine tool cutting device 12.
• the drive element 34 engages in drive recesses of cutting strand segments of the cutting strand 40 (not shown here).
• the drive element 34 is non-rotatable with a
• the drive element 34 is rotatably mounted about the at least substantially parallel to the axis of movement 18 of the tool holding member 16 extending rotational axis 36 in the main body 52.
• the main body 52 is rotatably mounted in a An effetsgehause 76 of the machine tool housing 44 of the portable power tool 38.
• the base body 52 is mounted rotatably about an at least substantially parallel to the axis of rotation 36 of the drive element 34 in the connection housing 76.
• the portable power tool 38 has at least one rotary positioning unit 78.
• the Drehpositionierech 78 in this case comprises at least one positioning element 80 for fixing the base body 52 in a position relative to the Anitatisgehause 76.
• the positioning element 80 is in this case designed as a locking slide with PositionierausEnglishept (not shown here) of the main body 52 to a, a specialist already well-known fashion interacts.
• the rotational positioning unit 78 it is also conceivable for the rotational positioning unit 78 to have another configuration which appears expedient to a person skilled in the art, such as a configuration as a toothing, etc.
• the positioning element 80 can also be spring-loaded.
• the tool holding unit 14 has at least one spring element 20, which acts on the tool holding element 16 with a spring force (FIG. 2).
• the spring element 20 is designed as a leg spring which acts on the tool holding element 16 along a circumferential direction extending in the clamping plane with a spring force.
• the spring element 20 acts on the tool holding element 16 along a circumferential direction extending about the movement axis 18 of the tool holding element 16 with a spring force.
• the spring element 20 is supported with one end on the main body 52 or on the connection housing 76 and with a further end, the spring element 20 is supported on the tool holding member 16 from.
• the tool holding element 16 has at least one clamping extension 84 on which the spring element 20 is supported.
• the clamping extension 84 also acts together to a movement of the tool holding member 16 about the movement axis 18 with a control element 32 of the tool holding unit 14.
• the operating element 32 is thus provided for an actuation of the tool holding element 16.
• the operating element 32 is pivotably mounted on an outer circumference of the main body 52.
• the operating element 32 along a circumferentially extending at least substantially perpendicular to the movement axis 18 of the tool holding member 16 extending circumferential direction along the outer periphery of the base body 52 movably mounted.
• the tool holding unit 14 has at least one pressing element 24, which is provided to generate a spring force in the direction of a form-fitting recess 26 of the tool-holding element 16 (FIG. 2).
• the tool holding element 16 thus has at least the form-fitting recess 26, which has at least two functional areas 28, 30.
• the tool holding element 16 has two form-fitting recesses 26, 86.
• Each of the two form-fitting recesses 26, 86 has at least two functional areas 28, 30, 92, 94.
• the tool holding element 16 has one of two different number of positive engagement recesses 26, 86.
• the pressing element 24 is designed as a spring plate, in particular as an annular spring plate.
• the pressing element 24 viewed along an at least substantially parallel to the movement axis 18 of the tool holding member 16 extending direction, between the base body 52 and the tool holding member 16 is arranged.
• the pressing element 24 is provided to bias holding elements 88, 90 of the power-tool separating device 12 in a state arranged in the form-fitting recesses 26, 86 with a spring force in the direction of the tool-holding element 16.
• the holding elements 88, 90 each have a conically shaped insertion region and a fixing groove 96, 98.
• the fixing groove 96, 98 is provided in each case for cooperating with a form-locking fixing of the machine tool separating device 12 on the tool coupling device 10 with one of the functional regions 28, 30, 92, 94 of the positive-fit recesses 26, 86.
• the functional areas 28, 30, 92, 94 of the form-fitting recesses 26, 86 are each formed with circular recesses which are arranged overlapping. Hiebrei the circular recesses each have different diameters.
• the functional areas 28, 30, 92, 94 have another design which appears expedient to a person skilled in the art, such as, for example, an embodiment of a tapered groove. In this case, a part of the groove would be used as an introduction func- formed ons Bachelor and a tapered portion of the groove would be formed as a holding function area.
• the power-tool parting device 12 is inserted into the receiving recess of the tool-receiving element 66 along a direction at least substantially parallel to the axis of rotation 36 of the drive element 34.
• the tool holding member 16 is moved by an operation of the operating member 32 against the spring force of the spring member 20, starting from the horrfixierposition in the tool coupling function.
• a functional region 28, 92 of the form-fitting recesses 26, 86 formed as an insertion function region is arranged in an overlapping manner with one of two insertion recesses of the tool receiving element 66.
• Rotation of the tool holding member 16 is caused, and thus an insertion of the holding elements 88, 90 is decoupled from an actuation of the control element 32. Furthermore, the holding elements 88, 90 are introduced for coupling the machine tool separating device 12 with the tool coupling device 10 through the insertion recesses of the tool receiving element 66 into the respective functional region 28, 92 of the form-fitting recesses 26, 86 formed as an insertion function region.
• the power-tool separating device 12 is moved in the direction of the tool-coupling device 10 until the guide unit 42 bears against the tool-receiving element 66.

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• Life Sciences & Earth Sciences (AREA)
• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Wood Science & Technology (AREA)
• Forests & Forestry (AREA)
• Gripping On Spindles (AREA)
• Sawing (AREA)
• Jigs For Machine Tools (AREA)
• Milling Processes (AREA)

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• 2012
  • 2012-06-28 DE DE102012211102.6A patent/DE102012211102A1/de not_active Withdrawn
• 2013
  • 2013-06-10 EP EP13729306.4A patent/EP2866986B1/de active Active
  • 2013-06-10 CN CN201380034094.8A patent/CN104411470B/zh active Active
  • 2013-06-10 RU RU2015102507A patent/RU2648374C2/ru active
  • 2013-06-10 WO PCT/EP2013/061867 patent/WO2014001065A2/de active Application Filing

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