WO2012116831A1 - Machine-outil portative - Google Patents

Machine-outil portative Download PDF

Info

Publication number
WO2012116831A1
WO2012116831A1 PCT/EP2012/000920 EP2012000920W WO2012116831A1 WO 2012116831 A1 WO2012116831 A1 WO 2012116831A1 EP 2012000920 W EP2012000920 W EP 2012000920W WO 2012116831 A1 WO2012116831 A1 WO 2012116831A1
Authority
WO
WIPO (PCT)
Prior art keywords
machine tool
cutting
coupling
guide unit
tool
Prior art date
Application number
PCT/EP2012/000920
Other languages
German (de)
English (en)
Inventor
Rudolf Fuchs
Original Assignee
Robert Bosch Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Publication of WO2012116831A1 publication Critical patent/WO2012116831A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D57/00—Sawing machines or sawing devices not covered by one of the preceding groups B23D45/00 - B23D55/00
    • B23D57/02—Sawing machines or sawing devices not covered by one of the preceding groups B23D45/00 - B23D55/00 with chain saws
    • B23D57/023—Sawing machines or sawing devices not covered by one of the preceding groups B23D45/00 - B23D55/00 with chain saws hand-held or hand-operated
    • 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
    • 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
    • B27B17/06—Chain saws mounted on a bow
    • 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
    • B27B17/14—Arrangements for stretching the chain saw

Definitions

  • Portable machine tools are already known which have a coupling device which can be coupled to a machine tool separating device formed from a cutting strand and a guide unit.
  • the invention relates to a portable machine tool, in particular an electrically operable hacksaw, with at least one coupling device which can be coupled to a machine tool separating device formed from at least one cutting strand and at least one guide unit.
  • the coupling device has at least two coupling elements which are spaced apart from one another and viewed along a main extension direction.
  • a "portable power tool” is to be understood here in particular as meaning a power tool, in particular a power tool, which can be transported by an operator so that it can not be transported
  • the portable machine tool is preferably designed as an electrically operable hack saw, in particular as an electrically operated cordless hack saw
  • Coupling device can be coupled in a positive and / or non-positive manner. direction, which is intended to operatively connect the machine tool separating device by means of a positive and / or non-positive connection for machining a workpiece with the portable machine tool.
  • the coupling device is preferably designed as a tool holder.
  • the coupling device is provided for fixing the power-tool parting device to at least two ends of the power-tool parting device that are arranged at a distance from one another and viewed along a cutting direction of the cutting strand.
  • drive unit is intended here to define in particular a unit which is provided to generate forces and / or torques for driving the cutting strand.
  • the drive unit For generating forces and / or torques by means of the drive unit, thermal energy, chemical energy and / or or electrical energy is converted into kinetic energy.
  • the term "intended” is intended to define in particular specially designed and / or specially equipped.
  • the drive unit is formed directly and / or indirectly coupled to the cutting strand.
  • the drive unit comprises at least one rotor, which has at least one armature shaft, and at least one stator.
  • the drive unit is designed as an electric motor unit.
  • the drive unit has another, to a professional appear appropriate design.
  • a “cutting strand” is to be understood here as meaning, in particular, a unit which is intended to locally neutralize atomic cohesion of a workpiece to be machined, in particular by means of mechanical separation and / or by means of mechanical removal of material particles of the workpiece
  • Cutting strand provided to separate the workpiece into at least two physically separate parts and / or at least partially separate and / or remove material particles of the workpiece, starting from a surface of the workpiece and particularly preferably the cutting strand is moved circumferentially in at least one operating state, in particular along a Scope of the management unit:
  • a “management unit” is to be understood as meaning in particular a unit stand, which is intended to exert a constraining force at least along a direction perpendicular to a cutting direction of the cutting strand on the cutting strand to specify a possibility of movement of the cutting strand along the cutting direction.
  • the guide unit has at least one guide element, in particular a guide groove, through which the cutting strand is guided.
  • the cutting strand viewed in a cutting plane, guided along an entire circumference of the guide unit by the guide unit by means of the guide element, in particular the guide groove.
  • the guide unit is designed as a sword.
  • the term "sword" is intended here to define in particular a geometric shape which, viewed in the cutting plane, has a closed outer contour which comprises at least two mutually parallel straight lines and at least two respectively connecting ends of the straight lines connecting connecting sections, in particular circular arcs,
  • the guide unit has a geometric shape which, viewed in the cutting plane, is composed of a rectangle and at least two circular sectors arranged on opposite sides of the rectangle.
  • cutting plane should in particular define a plane in which the cutting strand is moved in at least one operating state along a circumference of the guide unit in at least two mutually oppositely directed cutting directions relative to the guide unit
  • at least essentially transversal is to be understood here as meaning, in particular, an alignment of an plane and / or a direction relative to a further plane and / or a further direction, which is preferably of a parallel orientation the plane and / or the direction deviates relative to the further level and / or the further direction.
  • the cutting plane is aligned at least substantially parallel to a machined workpiece surface when machining a workpiece, in particular when forming the cutting strand as an abrasive, etc.
  • at least substantially parallel is intended here in particular an orientation of Direction relative to a reference direction, in particular in a plane, be 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 °
  • Under a “cutting direction” should be understood in particular a direction along which the cutting strand to produce a Cutting gap and / or for the separation 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.
  • the cutting strand and the guide unit preferably together form a closed system.
  • the term "closed system” is intended to define a system comprising at least two components which retain functionality and / or functionality by means of interaction in a disassembled state of the system from a system superior to the system, such as a machine tool
  • the at least two components of the closed system are at least substantially inseparably connected with each other for an operator.
  • "At least substantially insoluble” is to be understood here as meaning, in particular, a connection of at least two components which are only under the With the help 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.
  • a “main direction of extension” should be understood here to mean, in particular, a direction along which the portable power tool and / or the coupling device has a maximum extension, in which case the main direction of extension preferably runs substantially parallel to a preferred working direction of the portable power tool, along which the portable machine tool Machine tool for
  • a "coupling element" is to be understood here in particular as a link of the coupling device, which is intended to connect the machine tool separating device, in particular the guide unit, positively and / or non-positively to the portable machine tool, in particular by a possibility of movement of the guide unit relative to a machine tool housing, at least
  • the coupling members are arranged spaced apart along the main extension direction at least more than 40 mm, preferably more than 90 mm and particularly preferably more than 150 mm, relative to one another.
  • the coupling device has at least two legs, wherein at least one of the at least two legs of at least one of the at least two coupling members is arranged. It can constructively be achieved a distance between the at least two coupling members.
  • the at least two legs are mounted so as to be movable at least relative to one another.
  • the term "movably mounted” is intended here to define in particular a bearing of the at least two legs of the coupling device relative to each other, wherein the at least two legs of the coupling device, in particular decoupled from an elastic deformation of the at least two legs, a movement possibility along at least a distance greater than 1 mm, preferably greater than 10 mm and particularly preferably greater than 50 mm and / or a possibility of movement around at least one axis by an angle greater than 10 °, preferably greater than 45 ° and particularly preferably greater than 60 °
  • a distance between the at least two legs of the coupling device can advantageously be varied, in particular during a coupling process with a machine tool cutting device and / or for coupling 29iendener machine tool separating devices with different dimensions.
  • the at least two legs are pivotally mounted relative to each other.
  • the at least two limbs are mounted relative to each other about a pivot axis which extends at least substantially perpendicular to a drive unit longitudinal axis.
  • the at least two legs are mounted pivotably about another pivot axis, which appears sensible to a person skilled in the art.
  • a pivotable mounting of the at least two legs about at least one axis and an additional translational mounting of the at least two legs along at least one axis is also conceivable.
  • substantially perpendicular should in this case in particular define an orientation of a direction relative to a reference direction, the direction and the reference direction, in Specifically considered in one plane, include an angle of 90 ° and the angle has a maximum deviation of in particular less than 8 °, advantageously less than 5 ° and particularly advantageously less than 2 °.
  • the coupling device has at least one spring element, which is provided to bias the at least two legs relative to one another.
  • a "spring element” is to be understood in particular as a macroscopic element which has at least one extension that is elastically changeable by at least 10%, in particular by at least 20%, preferably by at least 30% and particularly advantageously by at least 50% in a normal operating state , and which in particular produces a counterforce which is dependent on a change in the extent and preferably proportional to the change and which counteracts the change.
  • Extension of an element is understood to mean, in particular, a maximum distance between two points of a vertical projection of the element onto a plane .
  • a "macroscopic element” is to be understood as meaning, in particular, an element having an extension of at least 1 mm, in particular of at least 5 mm and preferably of at least 10 mm,
  • the spring element is designed as a torsion spring, which is subjected to torsion about its axis
  • the spring element is configured in another way, which appears appropriate to a person skilled in the art, such as, for example, as a tension spring, as a compression spring.
  • the biasing force of the spring element advantageously for positioning the machine tool separating device, in particular the guide unit, in one with the coupling device ung oppelten state are used relative to a machine tool housing of the portable power tool.
  • the invention is based on a power-tool parting device for a portable power tool according to the invention, with at least one guiding device. tion unit and with at least one cutting strand, which together form a closed system.
  • the machine tool separating device comprises at least one torque transmission element, which is mounted at least partially in the guide unit.
  • the torque transmission element is at least partially surrounded along at least one direction by outer walls of the guide unit.
  • the torque transmitting member has a concentric coupling recess into which a pinion of the motor unit and / or a gear and / or a toothed shaft of the gear unit can engage in an assembled state.
  • the coupling recess is in this case preferably formed by a hexagon socket.
  • the coupling recess can have another configuration that appears appropriate to a person skilled in the art.
  • a closed system can be achieved in a structurally simple manner which can be conveniently mounted by an operator on a machine tool provided for this purpose.
  • the invention is based on a machine tool system comprising the portable power tool according to the invention and the power-tool parting device according to the invention.
  • the portable power tool preferably has at least one drive unit which has an at least substantially perpendicular to a longitudinal axis of the guide unit arranged drive unit longitudinal axis.
  • a "drive unit longitudinal axis” is to be understood here as meaning, in particular, an axis of the drive unit which runs at least substantially coaxially to a rotational axis of a drive shaft of the drive unit, in particular an armature shaft of the drive unit
  • the portable power tool comprises at least one drive unit which has a drive unit longitudinal axis arranged at least substantially coaxially to a longitudinal axis of the guide unit arranged as handle area to a handle the portable power tool can be achieved.
  • an inline engine concept can be realized.
  • the machine tool separating device according to the invention and / or the portable power tool according to the invention should not be limited to the application and embodiment described above.
  • the machine tool separating device according to the invention and / or the portable power tool according to the invention may have a number deviating from a number of individual elements, components and units specified herein for fulfilling a mode of operation described herein.
  • FIG. 1 shows a portable power tool according to the invention with a machine tool separating device according to the invention in a schematic representation
  • FIG. 2 shows a detailed view of an arrangement of a drive unit of the portable power tool according to the invention with a dismantled machine tool housing half of the machine tool according to the invention and the power tool parting device according to the invention in a schematic illustration
  • FIG. 3 is a detailed view of the machine tool separating device according to the invention in a schematic representation
  • FIG. 4 shows a sectional view along the line IV-IV from FIG. 3 of the power-tool parting device according to the invention in a schematic illustration, a detailed view of cutter support elements of a
  • FIG. 1 shows a portable machine tool 10a with a machine tool separating device 18a, which together form a machine tool system.
  • the power-tool parting device 18a comprises a cutting strand 14a and a guide unit 16a for guiding the cutting strand 14a.
  • the portable power tool 10a has a power tool housing 46a enclosing a drive unit 40a and a gear unit 48a of the portable power tool 10a.
  • the drive unit 40a and the gear unit 48a are operatively connected to one another in a manner already known to a person skilled in the art in order to generate a drive torque which can be transmitted to the power-tool parting device 18a.
  • the gear unit 48a of the portable power tool 10a is formed as an angle gear.
  • the drive unit 40a is designed as an electric motor unit.
  • the drive unit 40a becomes this is powered by means of a removable accumulator pack 134a of the portable power tool 10a with energy.
  • the drive unit 40a and / or the gear unit 48a have another configuration that appears appropriate to a person skilled in the art and that the drive unit 40a is connected to a local energy network by means of a cable connection
  • the drive unit 40a is provided to drive the cutting strand 14a of the power-tool parting device 18a in at least one operating state with a cutting speed of less than 6 m / s.
  • the portable power tool 10a has at least one operating mode in which a drive of the cutting strand 14a in the guide unit 16a of the power-tool parting device 18a along a cutting direction 34a of the cutting strand 14a with a cutting speed of less than 6 m / s is made possible.
  • the portable power tool 18a has a coupling device 12a for the positive and / or non-positive coupling with the machine tool separating device 18a.
  • the coupling device 12a can be designed as a bayonet closure and / or as another coupling device that appears meaningful to a person skilled in the art. Further, the coupling device 12a is provided to operatively connect the power tool separating device 18a to the portable power tool 10a. In a mounted state of the power-tool parting device 18a by means of the coupling device 12a, the drive unit 40a and / or the gear unit 48a are provided to be coupled to the cutting strand 14a for transmitting a drive torque for driving the cutting strand 14a.
  • the coupling device 12a can be designed as a bayonet closure and / or as another coupling device that appears meaningful to a person skilled in the art. Further, the coupling device 12a is provided to operatively connect the power tool separating device 18a to the portable power tool 10a. In a mounted state of the power-tool parting device 18a by means of the coupling device 12a, the drive unit 40a and / or the gear unit 48a are provided to be coupled to the cutting strand
  • Coupling device 12a is provided to fix the machine tool separating device 18a at two ends 36a, 38a of the power-tool parting device 18a, which are arranged relative to one another and spaced apart along the cutting direction 34a of the cutting strand 14a.
  • the coupling device 12a two, viewed along a main extension direction 20a of the portable power tool 10a, mutually spaced coupling members 22a, 24a.
  • the coupling device 12a it is also conceivable for the coupling device 12a to have another number of coupling elements 22a, 24a which appears sensible to a person skilled in the art.
  • the two coupling members 22a, 24a are provided to connect the power-tool parting device 18a in a form-locking and / or non-positive manner to the portable power tool 10a in order to allow machining of a workpiece (not shown here).
  • the coupling device 12a has two legs 26a, 28a on, a first leg 26a and a second leg 28a, wherein on one of the two legs 26a, 28a of the two coupling members 22a, 24a of the coupling device 12a is arranged.
  • One of the two coupling members 22a, 24a is in this case arranged on the second leg 28a and one of the two coupling members 22a, 24a is on a side facing the second leg 28a
  • the coupling member 22a of the coupling members 22a, 24a disposed on the machine tool housing 46a is provided to prevent the
  • Cutting strand 14a operatively connected to the drive unit 40a and / or the gear unit 48a.
  • the first leg 26a is fixedly connected to the machine tool housing 46a.
  • the first leg 26a is positively and / or non-positively connected to the machine tool housing 46a. It is also conceivable that the first leg 26a is connected to the machine tool housing 46a by means of a material connection.
  • the first leg 26a extends at least substantially parallel to the main extension direction 20a of the portable power tool 10a in a direction away from the machine tool housing 46a.
  • the two legs 26a, 28a are movably mounted relative to each other.
  • the two legs 26a, 28a are pivotally mounted relative to each other.
  • the second leg 28a is pivotably mounted relative to the first leg 26a about a pivot axis 50a extending at least substantially perpendicular to a drive unit longitudinal axis 44a (FIG. 2).
  • the second leg 28a is connected to the first leg 26a by means of a hinge element 52a.
  • the coupling device 12a has a spring element 30a, which is provided to bias the two legs 26a, 28a relative to each other.
  • the hinge member 52a is formed integrally with the spring member 30a.
  • the spring element 30a is designed as a resilient partial region of the coupling device 12a. It is achieved by means of an elastic material deformation of the spring element 30a, a joint function of the spring element 30a.
  • a pivoting movement of the second leg 28a relative to the first leg 26a is thus achieved by means of the elastic element formed as a resilient portion 30a pivotal movement.
  • the resilient portion is integrally connected to the first leg 26a and materially connected to the second leg 28a.
  • the first leg 26a and the second leg 28a are biased relative to each other by means of the resilient portion.
  • the power-tool parting device 18a At the end 36a, which is coupled to the coupling member 24a of the coupling members 22a, 24a arranged on the machine tool housing 46a, the power-tool parting device 18a has a torque-transmitting element 32a. Subsequently, the second leg 28a, on which at least one coupling member 24a of the coupling members 22a, 24a is arranged, is pivoted about the pivot axis 50a relative to the first leg 26a until the coupling member 24a of the coupling members 22a, 24a arranged on the second leg 28a carries the power-tool parting device 18a a further end 38a of the power-tool parting device 18a is coupled.
  • the drive unit 40a has a drive unit longitudinal axis 44a arranged at least substantially perpendicular to a longitudinal axis 42a of the guide unit 16a.
  • the first leg 26a and the second leg 28a are arranged in an L-shape.
  • FIG. 3 shows the power-tool parting device 18a in a state decoupled from the coupling device 12a of the portable power tool 10a.
  • the machine tool separating device 18a has the cutting strand 14a and the guide unit 16a, which together form a closed system.
  • the guide unit 16a is designed as a sword.
  • the guide unit 16a viewed in the cutting plane of the cutting strand 14a, has the ends 36a, 38a with which the power-tool parting device 18a can be coupled to the coupling device.
  • the ends 36a, 38a are convex.
  • the convexly shaped ends 36a, 38a of the guide unit 16a are arranged on two opposite sides of the guide unit 16a.
  • the cutting strand 14a is guided by the guide unit 16a.
  • the guide unit 16a at least one guide element 56a ( Figure 7), by means of which the cutting strand 14a is guided.
  • the guide element 56a is in this case formed as a guide groove 58a, which extends in the cutting plane of the cutting strand 14a along an entire circumference of the guide unit 16a.
  • the cutting strand 14a is guided by means of the guide groove 58a delimiting edge regions of the guide unit 16a.
  • the guide element 56a is formed in another manner that appears appropriate to a person skilled in the art, such as, for example, as a rib-like molding on the guide unit 16a, which engages in a recess on the cutting strand 14a.
  • the cutting strand 1 a viewed in a direction perpendicular to the cutting plane, viewed from three sides of the guide groove 58 a bounding edge regions ( Figure 7).
  • the cutting strand 14a is circumferentially moved in the guide groove 58a relative to the guide unit 16a during operation.
  • the power-tool parting device 18a has the means of
  • the torque transmission element 32a has a coupling recess 60a, which in a mounted state can be coupled to an output shaft 62a of the transmission unit 48a.
  • the torque transmission element 32a is coupled in a coupled state for driving the cutting strand 14a directly with a pinion 64a of the drive unit 40a and / or a gear 66a of the gear unit 48a (FIG. 2).
  • the coupling recess 60a is concentrically disposed in the torque transmitting member 32a.
  • the coupling recess 60a is formed as a hexagon socket.
  • the coupling recess 60a to have another configuration that appears appropriate to a person skilled in the art.
  • Cutting direction 34a of the cutting strand 14a and / or along the cutting direction 34a in the guide unit 16a movably arranged ( Figure 4).
  • the torque transmission element 32a is at least partially disposed between two outer walls 68a, 70a of the guide unit 16a.
  • the outer walls 68a, 70a extend at least substantially parallel to the cutting plane of the
  • the guide unit 16a has in the outer walls 68a, 70a each have a recess 72a, 74a, in which the torque transmitting element 32a is at least partially disposed.
  • the torque transmission element 32a is arranged with a partial region in the recesses 72a, 74a of the outer walls 68a, 70a.
  • the torque transmission element 32a has, at least in the subregion arranged in the recesses 72a, 74a, an extension along a rotational axis.
  • 76a of the torque transmitting element 32a which terminates flush with an outer surface 136a, 38a and / or both outer surfaces 136a, 138a of the outer walls 68a, 70a.
  • the subregion of the torque transmission element 32a arranged in the recesses 72a, 74a of the outer walls 68a, 70a of the guide unit 16a has an outer dimension extending at least substantially perpendicular to the rotation axis 76a of the torque transmission element 32a, which is at least 0.1 mm smaller than at least one substantially perpendicular to the axis of rotation 76a of the torque transmitting element 32a extending inner dimension of the recesses 72a, 74a.
  • the portion of the torque transmission element 32a arranged in the recesses 72a, 74a is arranged spaced apart along a direction perpendicular to the axis of rotation 76a from the edge of the outer walls 68a, 70a delimiting the respective recess 72a, 74a.
  • the arranged in the recesses 72a, 74a portion of the torque transmitting element 32a has a clearance within the recesses 72a, 74a.
  • FIG. 5 shows a detailed view of cutter carrier elements 78a, 80a of the cutting strand 14a of the power-tool parting device 18a.
  • the cutting strand 14a comprises a plurality of interconnected cutter support elements 78a, 80a, each interconnected by a connecting element 82a, 84a of the cutting strand 14a, at least substantially flush with one of two outer surfaces 86a, 88a and / or both outer surfaces 86a, 88a of one the interconnected cutter support elements 78a, 80a closes (see also Figure 7).
  • the connecting elements 82a, 84a are bolt-shaped.
  • the outer surfaces 86a, 88a extend in a state arranged in the guide groove 58a of the cutting strand 14a at least substantially parallel to the cutting plane of the cutting strand 14a.
  • a person skilled in the art will select a suitable number of cutter carrier elements 78a, 80a for the cutting strand 14a.
  • the cutter support elements 78a, 80a are each formed integrally with one of the connecting elements 82a, 84a.
  • the cutter support elements 78a, 80a each have a connecting recess 90a, 92a for receiving one of the connecting elements 82a, 84a of the interconnected cutter support elements 78a, 80a.
  • the connecting elements 82a, 84a are guided by means of the guide unit 16a (FIG.
  • the connecting elements 82a, 84a are arranged in a mounted state of the cutting strand 14a in the guide groove 58a.
  • the connecting elements 82a, 84a can, in a direction perpendicular to the cutting edge Seen ne extending plane, supported on two side walls 94a, 96a of the guide groove 58a.
  • the side walls 94a, 96a define the guide groove 58a along a direction perpendicular to the cutting plane.
  • the side walls 94a, 96a of the guide groove 58a viewed in the cutting plane, extend perpendicularly from the guide unit 16a
  • the cutter support elements 78a, 80a of the cutting strand 14a each have a drive recess 98a, 100a, each in an assembled state on a side facing the torque transmission element 32a
  • the torque transmission element 32a engages in the drive recess 98a, 100a in at least one operating state for driving the cutting strand 14a.
  • the torque transmitting element 32a is formed here as a gear.
  • the torque transmitting member 32a includes teeth
  • the sides 102a, 104a of the blade carrier elements 78a, 80a facing the torque transmission element 32a are circular arc-shaped.
  • the sides 102a, 104a of the cutter support elements 78a, 80a facing the torque transmission element 32a in a mounted state are respectively arranged in partial regions 110a, 112a, 114a, 116a between a center axis 118a of the respective connection element 82a, 84a and a center axis 120a, 122a of the respective device.
  • connection recess 90a, 92a designed in a circular arc.
  • the arcuate portions 110a, 112a, 114a, 116a are respectively formed adjacent to the drive recesses 98a, 100a into which the torque transmitting member 32a engages.
  • the circular-arc-shaped partial regions 110a, 112a, 114a, 116a have a radius which corresponds to a radius of a profile of the guide groove 58a at the convex ends 36a, 38a.
  • Subareas 110a, 112a, 114a, 116a are concave (Figure 6).
  • the cutting strand 14a has cutting elements 124a, 126a.
  • the cutting elements 124a, 126a are each formed integrally with one of the cutter carrier elements 78a, 80a.
  • the cutting Mentes 124a, 126a are provided to allow a separation and / or removal of material particles of a workpiece to be machined (not shown here).
  • the cutting elements 124a, 126a can be designed, for example, as a solid chisel, semi-chisel or other types of cutting edge that appear meaningful to a person skilled in the art, which are intended to enable a separation and / or removal of material particles of a workpiece to be machined.
  • the cutting strand 14a is endless.
  • the cutting strand 14a is formed as a cutting chain.
  • the blade carrier elements 78a, 80a are in this case designed as chain links, which are connected to one another by means of the bolt-shaped connecting elements 82a, 84a.
  • the cutting strand 14a, the cutter support elements 78a, 80a and / or the connecting elements 82a, 84a are configured in another manner that appears appropriate to a person skilled in the art.
  • FIGS. 8 and 9 show two alternative embodiments. in the
  • Substantially identical components, features and functions are basically numbered with the same reference numerals. To distinguish the embodiments, the letters a to c are added to the reference numerals of the embodiments. The following description is essentially limited to the differences from the first exemplary embodiment in FIGS. 1 to 7, wherein reference can be made to the description of the first exemplary embodiment in FIGS. 1 to 7 with regard to components, features and functions remaining the same.
  • FIG. 8 shows an alternative portable power tool 10b with a machine tool separating device 18b, which together form a machine tool system.
  • the power-tool parting device 18b comprises a cutting strand 14b and a guide unit 16b for guiding the cutting strand 14b.
  • the power-tool parting device 18b has a construction analogous to the power-tool parting device 18a described in FIGS. 1 to 7.
  • the portable power tool 10b has a coupling device 12b which has two coupling elements 22b, 24b spaced apart from one another, viewed along a main extension direction 20b.
  • the coupling device 12b has at least two legs 26b, 28b, a first leg 26b and a second leg 28b, wherein one of the two legs 26b, 28b of one of the two coupling members 22b, 24b is arranged.
  • the two legs 26b, 28b are movably mounted relative to each other.
  • the two legs 26b, 28b are pivotally mounted relative to each other.
  • Of the Second leg 28b is pivotally mounted relative to the first leg 26b about an at least substantially perpendicular to a drive unit longitudinal axis 44b of a drive unit 40b of the portable power tool 10b extending pivot axis.
  • the drive unit longitudinal axis 44b is arranged in a coupled state of the power-tool parting device 18b substantially perpendicular to a longitudinal axis 42b of the guide unit 16b.
  • the second leg 28b is connected to the first leg 26b by means of a hinge element 52b.
  • the joint element 52b is in this case designed as a pin which engages in each case in a connecting element 130b of the first leg 26b and in a connecting element 132b of the second leg 28b and thus pivotably connects the first leg 26b and the second schnekel 28b.
  • the connecting elements 130b, 132b are each formed as tabs with a connecting recess into which the bolt engages.
  • the joint element 52b has another configuration which appears expedient to a person skilled in the art.
  • the coupling device 12b also has a spring element 30b, which is provided to bias the two legs 26b, 28b relative to each other.
  • the spring element 30b is designed as a leg spring.
  • the spring member 30b is wound around the hinge member 52b formed as a bolt. Furthermore, the spring element
  • the power-tool parting device 18c comprises a cutting strand 14c and a guide unit 16c for guiding the cutting strand 14c. Furthermore, the power-tool parting device 18c has an arrangement similar to that of the power-tool parting device 18a described in FIGS. 1 to 7.
  • the portable power tool 10c has a coupling device 12c, the two, viewed along a main extension direction 20c, mutually spaced coupling members 22c, 24c having.
  • the portable power tool 10c has a drive unit 40c which, in a coupled state of the power-tool parting device 18c, has a drive unit longitudinal axis 44c arranged at least substantially coaxially to a longitudinal axis 42c of the guide unit 16c.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Sawing (AREA)

Abstract

L'invention concerne une machine-outil portative comprenant au moins un dispositif d'accouplement (12a; 12b; 12c) qui peut être accouplé à un dispositif de séparation pour machine-outil composé d'au moins un brin de coupe (14a; 14b; 14c) et d'au moins une unité de guidage (16a; 16b; 16c). L'invention se caractérise en ce que ledit dispositif d'accouplement (12a; 12b; 12c) présente au moins deux éléments d'accouplement (22a, 24a; 22b, 24b; 22c, 24c) situés à distance l'un de l'autre, vus le long d'une direction longitudinale principale (20a; 20b; 20c).
PCT/EP2012/000920 2011-03-03 2012-03-02 Machine-outil portative WO2012116831A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011005042.6 2011-03-03
DE201110005042 DE102011005042A1 (de) 2011-03-03 2011-03-03 Tragbare Werkzeugmaschine

Publications (1)

Publication Number Publication Date
WO2012116831A1 true WO2012116831A1 (fr) 2012-09-07

Family

ID=45999756

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2012/000920 WO2012116831A1 (fr) 2011-03-03 2012-03-02 Machine-outil portative

Country Status (2)

Country Link
DE (1) DE102011005042A1 (fr)
WO (1) WO2012116831A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107552879A (zh) * 2016-06-30 2018-01-09 罗伯特·博世有限公司 工具机装置
US11311952B2 (en) 2018-01-31 2022-04-26 Milwaukee Electric Tool Corporation Reciprocating saw

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191029213A (en) * 1910-12-16 1911-12-14 Reginald Luckock Muir Improvements in Saws, especially Endless Chain Saws.
DE507214C (de) * 1929-01-09 1930-09-13 Fellbach G M B H Maschf Elektromotorisch angetriebene Saege mit Saegekette
FR701211A (fr) * 1930-08-25 1931-03-13 Socolest Tronconneuse portative à chaîne coupante
US2731048A (en) * 1953-07-17 1956-01-17 Clinton Machine Company Bow type chain saw construction
US2941555A (en) * 1958-01-29 1960-06-21 Hornbostel Lloyd Underwater saw structure
US2992660A (en) * 1955-08-22 1961-07-18 Mcculloch Corp Saw chain and bar unit
GB2042974A (en) * 1979-02-26 1980-10-01 Omark Industries Inc Chain saw
US4382334A (en) * 1981-07-01 1983-05-10 Omark Industries, Inc. Chain saw device
US5239758A (en) * 1992-04-20 1993-08-31 Lindell Lester G Hand drill powered mini chain saw

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191029213A (en) * 1910-12-16 1911-12-14 Reginald Luckock Muir Improvements in Saws, especially Endless Chain Saws.
DE507214C (de) * 1929-01-09 1930-09-13 Fellbach G M B H Maschf Elektromotorisch angetriebene Saege mit Saegekette
FR701211A (fr) * 1930-08-25 1931-03-13 Socolest Tronconneuse portative à chaîne coupante
US2731048A (en) * 1953-07-17 1956-01-17 Clinton Machine Company Bow type chain saw construction
US2992660A (en) * 1955-08-22 1961-07-18 Mcculloch Corp Saw chain and bar unit
US2941555A (en) * 1958-01-29 1960-06-21 Hornbostel Lloyd Underwater saw structure
GB2042974A (en) * 1979-02-26 1980-10-01 Omark Industries Inc Chain saw
US4382334A (en) * 1981-07-01 1983-05-10 Omark Industries, Inc. Chain saw device
US5239758A (en) * 1992-04-20 1993-08-31 Lindell Lester G Hand drill powered mini chain saw

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107552879A (zh) * 2016-06-30 2018-01-09 罗伯特·博世有限公司 工具机装置
US11311952B2 (en) 2018-01-31 2022-04-26 Milwaukee Electric Tool Corporation Reciprocating saw

Also Published As

Publication number Publication date
DE102011005042A1 (de) 2012-09-06

Similar Documents

Publication Publication Date Title
EP2680995B1 (fr) Machine-outil portative
EP2681018B1 (fr) Système de machine-outil
EP2681020B1 (fr) Dispositif de séparation pour machine-outil
DE102011005011A1 (de) Werkzeugmaschinentrennvorrichtung
WO2012116831A1 (fr) Machine-outil portative
DE102011005008A1 (de) Werkzeugmaschinentrennvorrichtung
WO2012116826A1 (fr) Système de machine-outil
EP2681021B1 (fr) Système de machine-outil
WO2012116825A1 (fr) Dispositif de séparation pour machine-outil
DE102012215455A1 (de) Werkzeugmaschinensystem
EP2681019B1 (fr) Dispositif de coupe d'une machine-outil
WO2012116837A1 (fr) Machine-outil portative
WO2012116835A1 (fr) Dispositif de séparation pour machine-outil
EP2841244A1 (fr) Dispositif de séparation pour machine-outil
DE102011005012A1 (de) Werkzeugmaschinentrennvorrichtung
EP2841241A1 (fr) Segment de brin de coupe
DE102012004051A1 (de) Werkzeugmaschinentrennvorrichtung
WO2013159967A1 (fr) Segment de brin de coupe
DE102011005022A1 (de) Tragbare Werkzeugmaschine
DE102012206760A1 (de) Schneidstrangsegment
WO2013159957A1 (fr) Dispositif de séparation pour machine-outil
WO2013159963A1 (fr) Segment de chaîne de coupe

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 12716218

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 12716218

Country of ref document: EP

Kind code of ref document: A1