WO2012116825A1 - Dispositif de séparation pour machine-outil - Google Patents

Dispositif de séparation pour machine-outil Download PDF

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Publication number
WO2012116825A1
WO2012116825A1 PCT/EP2012/000914 EP2012000914W WO2012116825A1 WO 2012116825 A1 WO2012116825 A1 WO 2012116825A1 EP 2012000914 W EP2012000914 W EP 2012000914W WO 2012116825 A1 WO2012116825 A1 WO 2012116825A1
Authority
WO
WIPO (PCT)
Prior art keywords
cutting strand
cutting
machine tool
strand
guide unit
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/EP2012/000914
Other languages
German (de)
English (en)
Inventor
Rudolf Fuchs
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
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 WO2012116825A1 publication Critical patent/WO2012116825A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • B27B17/02—Chain saws equipped with guide bar
    • B27B17/025—Composite guide bars, e.g. laminated, multisectioned; Guide bars of diverse material
    • 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
    • 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
    • B23D57/026—Sawing machines or sawing devices not covered by one of the preceding groups B23D45/00 - B23D55/00 with chain saws with a plurality of saw chains

Definitions

  • Machine tool separating devices which comprise a cutting strand and a guide unit, which together form a closed system.
  • the invention is based on a power-tool parting device, in particular a hand-held power tool parting device, with at least one cutting strand and with at least one guide unit, which form a closed system.
  • the power-tool parting device has at least one further cutting strand.
  • a "cutting strand” is to be understood here as meaning, in particular, a unit which is intended to locally neutralize an integral 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 Cutting strand provided to separate the workpiece into at least two physically separate parts and / or at least partially separate material particles of the workpiece, starting from a surface of the workpiece and / or remove
  • Cutting strand moves circumferentially in at least one operating state, in particular along a circumference of the guide unit.
  • unit should be understood here as meaning, 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 predetermine a movement possibility of the cutting strand along the cutting direction
  • the cutting strand viewed in a cutting plane, is preferably 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
  • word is intended here to define in particular a geometric shape which, viewed in the cutting plane, has a self-contained outer contour, which has at least two straight lines extending parallel to one another and at least two sic h facing ends of the straight lines connecting connecting portions, in particular arcs comprises.
  • the guide unit has a geometric shape, which, viewed in the cutting plane, composed of a rectangle and at least two arranged on opposite sides of the rectangle circular sectors.
  • 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 should in this case be understood to mean, in particular, an orientation 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 a machining of a workpiece at least substantially parallel to a machined workpiece surface, in particular in an embodiment of the cutting strand as abrasive, etc.
  • at least substantially parallel should in particular an orientation of a direction relative be understood to a reference direction, in particular in a plane, wherein the direction relative to the reference direction deviates in particular especially smaller than 8 °, advantageously smaller than 5 ° and particularly advantageously smaller than 2 °.
  • a "cutting direction” is to be understood here as meaning, in particular, a direction along which the cutting strand is used to produce a cutting gap and / or to remove and / or remove material particles of a workpiece to be machined in at least one operating state as a result of a drive force and / or a In one operating state, the cutting strand is preferably moved relative to the guide unit along the cutting direction.
  • the term "closed system” should in particular define a system which comprises at least two components which are combined by means of cooperation in one disassembled state of the system by a system superordinate to the system, such as a machine tool, maintain functionality and / or which are permanently connected to each other in the disassembled state.
  • 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 should be understood in particular a connection of at least two components that only with the aid of separation tools, such as a saw, in particular a mechanical saw, etc., and / or chemical
  • Separating agents such as solvents, etc. are separable from each other.
  • a high number of cutting elements can advantageously be achieved.
  • a high efficiency can be achieved when machining a workpiece.
  • Cutting strand and the other cutting strand can be realized.
  • the cutting strand and the further cutting strand have mutually at least substantially parallel cutting planes in an assembled state.
  • at least the cutting strand, the further cutting strand and the guide unit form a closed system.
  • the cutting strand and the further cutting strand in at least one operating state, viewed along an entire circumference, oppositely oriented cutting directions. It may be advantageous by means of the parallel arrangement of the cutting Strangs and the other cutting strand are introduced in a single operation, for example, grooves in a workpiece to be machined.
  • the guide unit has at least two guide elements, which are intended to guide the cutting strand and the other cutting strand.
  • the guide elements are preferably formed by guide grooves, which, viewed in the cutting plane, extend along an entire circumference of the guide unit.
  • one of the guide grooves is preferably assigned in each case one of the cutting strands.
  • the guide grooves are arranged relative to each other in parallel.
  • the guide elements in another, a person skilled in the sense appearing manner, such as rib-like projections on the guide unit, which engages in each case in a recess on the cutting strands, is formed.
  • the cutting strand is guided by means of one of the two guide elements. It can be constructively simply a guide of
  • Cutting strand and the other cutting strand can be achieved.
  • a compact machine tool separating device can be achieved.
  • the power-tool parting device comprises at least one torque-transmitting element which is at least partially mounted 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 drive 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 it is also conceivable for the coupling recess to have another configuration that appears appropriate to a person skilled in the art.
  • the power-tool parting device comprises two torque-transmitting elements, wherein in each case one of the two cutting strands is associated with a torque transmission element for driving the respective cutting strand.
  • 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. It can thus be advantageous to a single assembly of components. Nenten, such as the cutting strand, the guide unit and the torque transmitting element, are dispensed by the operator for use of the machine tool separating device according to the invention.
  • the cutting strand and the further cutting strand are endless.
  • the term "endless" is to be understood here as meaning, in particular, a closed course of the individual cutting strands in at least one operating state
  • the cutter support elements can be releasably connected to one another, such as by means of a chain lock, etc., but it is also conceivable that the cutting strand and / or the further cutting strand may be used as In one embodiment of the cutting strand and / or of the further cutting strand as a cutting strip and / or as a cutting rope, the blade carrier elements are fixed directly to the cutting strip and / or to the cutting rope and are umlaut fend and / or oscillating along a circumference of the guide unit drivable.
  • the cutter support elements can in this case be spaced apart from one another and / or arranged in direct contact with one another on the cutting band and / or on the cutting cable.
  • engagement of all cutting elements of the cutting strand and of the further cutting strand during machining of a workpiece can be achieved. Furthermore, it is possible to constructively realize an inventive machine tool separating device with circumferential cutting strands.
  • the cutting strand and the further cutting strand have a common cutting plane in an assembled state.
  • the guide unit has at least one segment guide element for guiding at least the cutting strand and / or the further cutting strand, which is provided for monitoring a movement of the cutting strand and / or the further cutting strand in a direction away from the guide unit. at least along a direction substantially parallel to at least one cutting plane of the cutting strand and / or the further cutting strand extending direction.
  • segment guide element is intended here to define, in particular, an element which is provided, as a result of direct contact with a segment of the cutting strand and / or the further cutting strand, in particular with a
  • Cutting carrier element of the cutting strand and / or the other cutting strand at least to guide the segment and considered at least one movement of the segment due to the direct contact with the segment, in particular in one of other segments of the cutting strand freely cut state of the cutting strand and / or the other cutting strand in the
  • the segment guide element is formed integrally with the guide unit, in particular with an outer wall of the guide unit.
  • the machine tool separating device preferably has at least one further segment guide element.
  • the segment guide elements are preferably each arranged in a partial region of the guide unit, wherein the partial regions, viewed along a perpendicular to a cutting plane of the cutting strand and / or the other cutting strand, opposite each other.
  • the segment guide element is designed as an extension which is arranged on the guide unit, in particular on an outer wall of the guide unit and / or on a side wall delimiting a guide groove.
  • the invention is based on a portable power tool with at least one coupling device which can be positively and / or non-positively coupled to the power-tool parting device according to the invention.
  • a "portable power tool” is to be understood here in particular as meaning a power tool, in particular a hand tool, which can be transported by an operator so that it can not be transported by a machine
  • the portable power tool in particular has a mass which is less than 40 kg, preferably less than 10 kg and Particularly preferably, less than 5 kg, particularly preferably, the machine tool separating device according to the invention and the portable machine tool according to the invention form a machine tool system
  • the portable power tool has two drive units, one of the drive units for driving one of the at least two blades idstrnature is provided.
  • the term "drive unit” should in particular define a unit which is provided to generate forces and / or torques for a drive of at least one of the power tool cutting devices
  • the drive unit particularly preferably comprises at least one rotor which has at least one armature shaft and at least one stator
  • the drive unit is preferably designed as an electric motor unit
  • the drive unit has a different one
  • the term "opposing" is intended in particular to mean two mutually opposite courses of
  • Cutting directions wherein one of the cutting directions in a clockwise direction along a circumference of the corresponding guide unit extends and one of the two cutting directions counterclockwise along a circumference of the corresponding guide unit, in particular contemplated by a fixed point on a perpendicular to at least one of
  • Cutting planes extending straight line is.
  • a “coupling device” It should be understood in particular a device 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 in a state of the coupling device coupled to the machine tool parting device in an operating state of the portable power tool, forces and / or torques can be transmitted from the drive unit of the portable power tool for driving the cutting strand to the machine tool parting device.
  • the coupling device is preferably designed as a tool holder. It can be advantageously achieved a portable machine tool, which is particularly advantageous for a wide range of applications.
  • the machine tool separating device according to the invention and / or the portable machine 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 can have a different number from a number of individual elements, components and units mentioned herein for fulfilling a mode of operation described herein.
  • FIG. 3 shows a sectional view along the line III-III from FIG. 3 of the power-tool parting device according to the invention in a schematic illustration
  • FIG. 1 shows a portable machine tool 38a with a machine tool separating device 10a, which together form a machine tool system.
  • the portable power tool 38a has a coupling device 40a for the positive and / or non-positive coupling with the machine tool separating device 10a.
  • the coupling device 40a can be used as a bayonet closure and / or as another which appears expedient to a person skilled in the art Coupling device may be formed.
  • the portable power tool 38a has a machine tool housing 44a enclosing a drive unit 42a and a gear unit 46a of the portable power tool 38a.
  • the drive unit 42a and the gear unit 46a 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 10a.
  • the gear unit 46a is formed as an angle gear.
  • the drive unit 42a is designed as an electric motor unit. However, it is also conceivable that the drive unit 42a and / or the gear unit 46a have another configuration that appears appropriate to a person skilled in the art.
  • the drive unit 42a is provided to drive a cutting strand 12a and a further cutting strand 16a of the power-tool parting device 10a in at least one operating state with a cutting speed of less than 6 m / s.
  • the portable power tool 38a at least one operating mode in which a drive of the cutting strand 12a in a guide unit 14a of the power tool cutting device 10a along a cutting direction 48a of the cutting strand 12a with a cutting speed less than 6 m / s and a drive of the other cutting strand 16a in the Guide unit 14a along a cutting direction 50a of the other cutting strand 16a with a cutting speed less than 6 m / s is possible.
  • the cutting direction 48a of the cutting strand 12a is oriented counter to the cutting direction 50a of the further cutting strand 16a.
  • the drive unit 42a of the portable power tool is intended to drive the cutting strand 12a and the other cutting strand 16a of the machine tool separating device 10a in opposite directions at least in an operating state.
  • FIG. 2 shows the power-tool parting device 10a in a state decoupled from the coupling device 40a of the portable power tool 38a.
  • the machine tool separating device 10a has the cutting strand 12a, the further cutting strand 16a and the guide unit 14a, which together form a closed system.
  • the guide unit 14a is formed as a sword.
  • the guide unit 14a viewed in a cutting plane of the cutting strand 12a, at least two convexly shaped ends 52a, 54a.
  • the convex ends 52a, 54a of the guide unit 14a are arranged on two opposite sides of the guide unit 1 a.
  • the cutting strand 12a and the further cutting strand 16a have mutually at least substantially parallel cutting planes in an assembled state.
  • the cutting strand 12a and the further cutting strand 16a are guided by means of the guide unit 14a.
  • the guide unit 14a on two guide elements 18a, 20a ( Figure 6), which are intended to guide the cutting strand 12a and the other cutting strand 16a.
  • One of the guide elements 18a, 20a is assigned to the cutting strand 12a for guidance and one of the guide elements 18a, 20a is assigned to the further cutting strand 16a for guidance.
  • the guide elements 18a, 20a are formed as guide grooves 56a, 58a (FIG. 6) which extend in each case in the cutting plane of the cutting strand 12a and the cutting plane of the further cutting strand 16a along an entire circumference of the guide unit 14a.
  • the cutting strand 12a and the further cutting strand 16a are each guided by means of the guide grooves 56a, 58a bounding edge regions of the guide unit 14a.
  • the guide elements 18a, 20a to be formed in another manner which appears appropriate to a person skilled in the art, for example as rib-like projections on the guide unit 14a, which engage in recesses on the cutting strand 12a and the further cutting strand 16a are.
  • the edge regions delimiting the guide grooves 56a, 58a are in each case formed integrally with one of two guide unit main elements 60a, 62a of the guide unit (FIG. 3).
  • the guide unit main elements 60a, 62a are detachably connected together in a mounted state in a plane extending parallel to the cutting planes by means of a positive and / or non-positive connection.
  • the cutting strand 12a and the further cutting strand 16a are in each case, viewed in a plane perpendicular to the cutting planes, surrounded on three sides by guide surfaces (FIG. 6).
  • the cutting strand 12a and the further cutting strand 16a are circumferentially moved during operation in the guide grooves 56a, 58a relative to the guide unit 14a along the circumference.
  • the cutting strand 12a comprises a plurality of interconnected cutter support elements 64a, 66a, which are each connected to one another by means of at least one connecting element 68a, 70a of the cutting strand 12a at least substantially flush with at least one of two outer surfaces 72a, 74a of the interconnected cutter support members 64a, 66a ( Figures 4 and 6).
  • the connecting elements 68a, 70a are bolt-shaped.
  • the outer surfaces 72a, 74a extend in a state arranged in the guide groove 56a of the cutting strand 12a at least substantially parallel to the cutting plane of the cutting strand 12a.
  • a person skilled in the art will select a suitable number of cutter carrier elements 64a, 66a for the cutting strand 12a.
  • the blade carrier elements 64a, 66a are each formed integrally with one of the connecting elements 68a, 70a. Furthermore, the cutter support elements 64a, 66a each have a connection recess 76a, 78a for receiving one of the connecting elements 68a, 70a of the mutually connected cutter support elements 64a, 66a.
  • the connecting elements 68a, 70a are guided by means of the guide unit 14a (FIG. 6). Here, the connecting elements 68a, 70a are arranged in a mounted state of the cutting strand 12a in the guide groove 56a.
  • the connecting elements 68a, 70a can, viewed in a plane perpendicular to the cutting plane of the cutting strand 12a, be supported on a guide surface extending at least substantially parallel to outer surfaces 80a, 82a of the guide unit 14a.
  • the cutting strand 12a has a plurality of cutting elements 90a, 92a.
  • a number of the cutting elements 90a, 92a are dependent on a number of cutter support elements 64a, 66a.
  • a person skilled in the art will select a suitable number of cutting elements 90a, 92a, depending on the number of cutter carrier elements 64a, 66a.
  • the cutting elements 90a, 92a are each formed integrally with one of the cutter support elements 64a, 66a. Furthermore, the cutting elements 90a, 92a extend in the cutting plane of the
  • the cutting elements 90a, 92a may be formed, for example, as a full chisel, semi-chisel or other cutting edge types which appear appropriate 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 12a is endless.
  • the cutting strand 12a is formed as a cutting chain.
  • the cutting denleyiata 64a, 66a are in this case formed as chain links, which are connected to each other by means of the bolt-shaped connecting elements 68a, 70a.
  • the further cutting strand 16a also has a plurality of interconnected cutter support elements 84a, 86a, which are each connected to one another by means of at least one connecting element 88a (FIG. 6) of the further cutting strand 16a.
  • the further cutting strand 16a likewise has a plurality of cutting elements 94a, 96a, which are each formed integrally with one of the cutter support elements 84a, 86a.
  • the further cutting strand 16a is arranged in the assembled state of the power-tool parting device 10a in the guide groove 58a.
  • the further cutting strand 16a has a structure analogous to the cutting strand 12a, so reference may be made here to the description of a construction of the cutting strand 12a.
  • the further cutting strand 16a is also endless.
  • the power-tool parting device 10a has two torque-transmitting elements 22a, 24a for transmitting forces and / or torques to the cutting strand 12a and the further cutting strand 16a to the drive unit 42a and / or the gear unit 46a is connectable.
  • One of the torque transmitting elements 22a, 24a is associated with the cutting strand 12a, and one of the torque transmitting elements 22a, 24a is associated with the further cutting strand 16a.
  • the torque transmission elements 22a, 24a each have a coupling recess 98a, 100a into which in each case a pinion of the drive unit 42a and / or a toothed wheel and / or a toothed shaft of the gear unit 46a engage in an assembled state.
  • the coupling recesses 98a, 100a are each arranged concentrically in the torque transmission elements 22a, 24a. Further, the torque transmitting members 22a, 24a are formed as gears.
  • the torque transmission elements 22a, 24a are each at least partially supported in the guide unit 14a.
  • the torque transmitting elements 22a, 24a viewed along a direction perpendicular to the cutting planes of the cutting strand 12a and the further cutting strand 16a, at least partially between one of two outer walls 102a, 104 of the guide unit 14a and one of two connecting walls 106a, 108a of the guide unit main elements 60a, 62a are arranged (FIG. 3).
  • the torque transmission elements 22a, 24a are each arranged with a partial area in a recess in one of the outer walls 102a, 104a of the guide unit 14a and in a recess in one of the connecting walls 106a, 108a of the guide unit main elements 60a, 62a.
  • the torque transmission elements 22a, 24a in each case have an extension along at least one of the rotational axes 110a of the torque transmission elements 22a, 24a, which are at least substantially flush with one of the outer surfaces 80a, 82a of the guide unit, at least in the partial regions arranged in the recesses 16a completes.
  • the partial regions of the torque transmission elements 22a, 24a arranged in the recesses have an outer dimension extending at least substantially perpendicular to the rotation axis 110a of the torque transmission elements 22a, 24a, which is at least 0.1 mm smaller than at least substantially perpendicular to the rotation axis 110a Torque transmission elements 22a, 24a extending inner dimension of the recesses.
  • the partial regions of the torque transmission elements 22a, 24a arranged in the recesses are each spaced apart along a direction perpendicular to the axis of rotation 110a to a border of the outer walls 102a, 104a of the guide unit and / or the connecting walls 106a, 108a of the guide unit main elements 60a bounding the respective recess. 62a arranged.
  • the arranged in the recesses portions of the torque transmitting elements 22a, 24a each have a game within the recesses.
  • the cutter support elements 64a, 66a of the cutting strand 12a each have a drive recess 112a, 114a, each in a mounted state on a the torque transmitting element 22a, the
  • the torque transmission element 22a which is assigned to the cutting strand 12a, engages in the drive recesses 112a, 11a in at least one operating state for driving the cutting strand 12a.
  • the torque transmitting element 22a which is assigned to the cutting strand 12a, engages in the drive recesses 112a, 11a in at least one operating state for driving the cutting strand 12a.
  • the cutter 22 a which is associated with the cutting strand 12 a, includes teeth 120 a, 122 a, the are provided to engage in at least one operating state for driving the cutting strand 12a in the drive recess 112a, 114a of the cutter support elements 64a, 66a. Furthermore, the sides 116a, 118a of the cutter support elements 64a, 66a facing the torque transmission element 22a, which is assigned to the cutting strand 12a, are circular arc-shaped.
  • the torque transmitting element 22a which is assigned to the cutting strand 12a, in a mounted state facing sides 116a, 118a of the cutter support elements 64a, 66a are each in partial areas 124a, 126a, 128a, 130a, between a central axis 132a of the respective connecting element 68a, 70a and a central axis 134a, 136a of the respective connecting recess 76a, 78a, designed in a circular arc.
  • the arcuate portions 124a, 126a, 128a, 130a are respectively disposed adjacent to the drive recesses 112a, 114a into which the torque transmitting member 22a associated with the cutting string 12a engages. In this case, the circular arc-shaped subregions 124a, 126a, 128a,
  • the cutter support elements 84a, 86a of the further cutting strand 16a likewise each have a drive recess 138a, which in each case is arranged in an assembled state on a side of the respective cutter support element 84a, 86a facing the torque transmission element 24a, which is assigned to the further cutting strand 16a.
  • the torque transmission element 24a which is assigned to the further cutting strand 16a, engages in the drive recesses 138a in at least one operating state for driving the further cutting strand 16a.
  • the torque transmission element 24a which is associated with the further cutting strand 16a, comprises teeth 140a, 142a which are intended to engage in the drive recess 138a of the cutter support elements 84a, 86a in at least one operating state for driving the further cutting strand 16a.
  • the drive recesses 138a of the cutter support elements 84a, 86a of the further cutting strand 16a have an arrangement analogous to the drive recesses 112a, 114a of the cutter support elements 64a, 66a of the cutting strand 12a.
  • the guide unit 14a has segment guide elements 26a, 28a, 30a, 32a for guiding the cutting strand 12a and the further cutting strand 16a, which are intended to move the cutting strand 12a and the further cutting strand 16a in a direction away from the guide unit 14a considered to limit along each one at least substantially parallel to the cutting planes of the cutting strand 12a and the further cutting strand 16a extending direction 34a, 36a ( Figures 2, 3 and 6).
  • Limiting cutting strand 16a in a direction away from the guide unit 1 a direction each case at least substantially perpendicular to straight lines of an outer contour of the guide unit 14a.
  • the segment guide elements 26a, 28a, 30a, 32a are provided to hold the cutting strand 12a and the further cutting strand 16a in regions of the straight lines of the outer contour of the guide unit 12a in the guide grooves 56a, 58a. Further, the segment guide members 26a, 28a, 30a, 32a are integrally formed with the guide unit main members 60a, 62a.
  • segment guide elements 26a, 28a, 30a, 32a are formed separately from the guide unit main elements 60a, 62a and, for example, by means of a latching connection or the like. detachably formed with the guide unit main elements 60a, 62a of the guide unit 14a connectable. Further, the segment guide members 26a, 28a, 30a, 32a each extend along an entire extension of the straight line of the outer contour of the guide unit, as viewed along a main extension direction of the guide unit 14a, to the convex ends 52a, 54a.
  • FIG. 7 shows an alternative embodiment. Substantially identical components, features and functions are basically numbered by the same reference numerals. To distinguish the embodiments, the reference numerals of the embodiments, the letters a and b are added. The following description is restricted essentially to the differences from the first exemplary embodiment in FIGS. 1 to 6, wherein reference can be made to the description of the first exemplary embodiment in FIGS. 1 to 6 with regard to components, features and functions remaining the same.
  • FIG. 7 shows an alternative power-tool parting device 10b which comprises a cutting strand 12b, a further cutting strand 16b and a guide unit 14a, which together form a closed system.
  • the cutting strand 12b and the further cutting strand 16b have a common cutting plane in an assembled state.
  • the cutting strand 12b and the further cutting strand 16b have a cutting strand 12a described in the description of FIGS. 1 to 6 and the others described
  • the guide unit 14b has two torque transmission elements 22b, 24b, which are at least partially mounted in the guide unit 14b.
  • the torque transmission elements 22b, 24b have parallel axes of rotation 110b, 144b in an assembled state.
  • An arrangement of the torque transmission elements 22b, 24b corresponds at least substantially to an arrangement of the torque transmission elements 22a, 24a described in the description of FIGS. 1 to 6.
  • the torque transmission elements 22b, 24b are in a coupled state for driving the cutting strand 12b and the further cutting strand 16b with a pinion (not shown here) of a drive unit (not shown here and / or a gear (not shown here) and / or A toothed shaft (not shown here in detail) is coupled to a gear unit of a portable machine tool (not shown in detail here).
  • the cutting tool 12b is driven in opposite directions to the further cutting strand 16b by means of the drive unit of the portable machine tool
  • the torque transmission elements 22b, 24b have a coupling recess 98b, 100b, which in a mounted state with a drive element de r portable power tool can be coupled.
  • the coupling recesses 98b, 100b are each arranged concentrically in the torque transmission elements 22b, 24b.
  • the coupling recesses 98b, 100b are each formed as a hexagon socket.
  • the coupling recesses 98b, 100b another, to a person skilled in sense have appearance appearing.
  • the torque transmitting elements 22b, 24b are arranged to be movable transversely to a cutting direction 48b of the cutting strand 12b and / or along the cutting direction 48b of the cutting strand 12b in the guide unit 14b.
  • the torque transmission elements 22b, 24b are each arranged at least partially between two outer walls 102b, 104b of the guide unit 14b.
  • the guide unit 14b has in the outer walls 102b, 104b each have a recess in which the torque transmission elements 22b, 24b are at least partially arranged.
  • the guide unit 14b comprises, viewed in the cutting plane of the cutting strand 12a and the further cutting strand 16b, four convex ends 52b, 54b, 146b, 148b. In this case, in each case two of the four convex ends 52b, 54b, 146b, 148b of the guide unit 14b are arranged on two opposite sides of the guide unit 14b.
  • the cutting strand 12b and the further cutting strand 16b are guided by means of the guide unit 14b.
  • the guide unit 14b has two guide elements 18b, 20b which are provided to guide the cutting strand 12b and the further cutting strand 16b.
  • One of the guide elements 18b, 20b is assigned to the cutting strand 12b for guidance and one of the guide elements 18b, 20b is assigned to the further cutting strand 16b for guidance.
  • the guide elements 18b, 20b are formed as guide grooves 56b, 58b.
  • the guide grooves 56b, 58b in this case run in the cutting plane of the cutting strand 12a and the further cutting strand 16b.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Sawing (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)

Abstract

L'invention concerne un dispositif de séparation pour machine-outil, en particulier un dispositif de séparation pour machine-outil à main, ledit dispositif comprenant au moins un brin de coupe (12a; 12b) et au moins une unité de guidage (14a; 14b) qui forment un système fermé. L'invention se caractérise en ce que le dispositif de séparation pour machine-outil comprend au moins un autre brin de coupe (16a; 16b).
PCT/EP2012/000914 2011-03-03 2012-03-02 Dispositif de séparation pour machine-outil Ceased WO2012116825A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201110005044 DE102011005044A1 (de) 2011-03-03 2011-03-03 Werkzeugmaschinentrennvorrichtung
DE102011005044.2 2011-03-03

Publications (1)

Publication Number Publication Date
WO2012116825A1 true WO2012116825A1 (fr) 2012-09-07

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Application Number Title Priority Date Filing Date
PCT/EP2012/000914 Ceased WO2012116825A1 (fr) 2011-03-03 2012-03-02 Dispositif de séparation pour machine-outil

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Country Link
DE (1) DE102011005044A1 (fr)
WO (1) WO2012116825A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160039020A1 (en) * 2013-03-13 2016-02-11 Tactical Ventilation Solutions Limited Firefighting Apparatus
US11311952B2 (en) 2018-01-31 2022-04-26 Milwaukee Electric Tool Corporation Reciprocating saw

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105458401B (zh) * 2014-07-28 2018-01-19 铁鎯电动工具有限公司 双链电链锯

Citations (10)

* Cited by examiner, † Cited by third party
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US1553672A (en) * 1920-02-10 1925-09-15 Northall Inc Ag De Saw
US1710970A (en) * 1925-09-02 1929-04-30 Northall Adrian G De Saw
GB685669A (en) * 1950-05-12 1953-01-07 Candido De Tena Y Tena Improvements relating to cutters for cutting stone and like hard material
DE879969C (de) * 1951-03-07 1953-06-18 Roland R Dipl-Ing Orendi Saege zum Schneiden plastischer bis fester Massen
US2649871A (en) * 1950-10-30 1953-08-25 Desbarat Edward William Saw attachment for drills and the like
US2800153A (en) * 1952-11-14 1957-07-23 Logan J Cromer Double chain saw
US2992660A (en) * 1955-08-22 1961-07-18 Mcculloch Corp Saw chain and bar unit
FR2711180A1 (fr) * 1993-10-15 1995-04-21 Bouygues Sa Outil de havage, notamment pour réaliser une saignée dans un front de taille.
DE19531450A1 (de) * 1995-08-26 1997-02-27 Reich Maschf Gmbh Karl Kettensäge mit Grundplatte
GB2366233A (en) * 2000-08-25 2002-03-06 Cristofer Jon Wagner Elevated scissor action chain saw

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1553672A (en) * 1920-02-10 1925-09-15 Northall Inc Ag De Saw
US1710970A (en) * 1925-09-02 1929-04-30 Northall Adrian G De Saw
GB685669A (en) * 1950-05-12 1953-01-07 Candido De Tena Y Tena Improvements relating to cutters for cutting stone and like hard material
US2649871A (en) * 1950-10-30 1953-08-25 Desbarat Edward William Saw attachment for drills and the like
DE879969C (de) * 1951-03-07 1953-06-18 Roland R Dipl-Ing Orendi Saege zum Schneiden plastischer bis fester Massen
US2800153A (en) * 1952-11-14 1957-07-23 Logan J Cromer Double chain saw
US2992660A (en) * 1955-08-22 1961-07-18 Mcculloch Corp Saw chain and bar unit
FR2711180A1 (fr) * 1993-10-15 1995-04-21 Bouygues Sa Outil de havage, notamment pour réaliser une saignée dans un front de taille.
DE19531450A1 (de) * 1995-08-26 1997-02-27 Reich Maschf Gmbh Karl Kettensäge mit Grundplatte
GB2366233A (en) * 2000-08-25 2002-03-06 Cristofer Jon Wagner Elevated scissor action chain saw

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160039020A1 (en) * 2013-03-13 2016-02-11 Tactical Ventilation Solutions Limited Firefighting Apparatus
US10875111B2 (en) * 2013-03-13 2020-12-29 Tactical Ventilation Solutions Limited Method of using a device to ventilate a burning building
US11311952B2 (en) 2018-01-31 2022-04-26 Milwaukee Electric Tool Corporation Reciprocating saw

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