EP2681022A1 - Power tool separation device - Google Patents
Power tool separation deviceInfo
- Publication number
- EP2681022A1 EP2681022A1 EP12720407.1A EP12720407A EP2681022A1 EP 2681022 A1 EP2681022 A1 EP 2681022A1 EP 12720407 A EP12720407 A EP 12720407A EP 2681022 A1 EP2681022 A1 EP 2681022A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cutter support
- machine tool
- elements
- support elements
- separating device
- 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.)
- Granted
Links
- 238000000926 separation method Methods 0.000 title abstract description 7
- 238000005520 cutting process Methods 0.000 claims abstract description 181
- 230000008878 coupling Effects 0.000 claims description 25
- 238000010168 coupling process Methods 0.000 claims description 25
- 238000005859 coupling reaction Methods 0.000 claims description 25
- 238000000034 method Methods 0.000 claims description 23
- 230000005540 biological transmission Effects 0.000 claims description 15
- 230000008569 process Effects 0.000 claims description 10
- 238000004049 embossing Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 description 8
- 239000011148 porous material Substances 0.000 description 8
- 239000002245 particle Substances 0.000 description 6
- 238000013461 design Methods 0.000 description 5
- 230000003993 interaction Effects 0.000 description 5
- 239000000314 lubricant Substances 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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
- B27B33/00—Sawing tools for saw mills, sawing machines, or sawing devices
- B27B33/14—Saw chains
- B27B33/148—Saw chains with means permitting replacement of cutter elements
-
- 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
- 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
- B27B33/00—Sawing tools for saw mills, sawing machines, or sawing devices
- B27B33/14—Saw chains
-
- 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
- B27B33/00—Sawing tools for saw mills, sawing machines, or sawing devices
- B27B33/14—Saw chains
- B27B33/147—Saw chains with incorporated lubricating means
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/909—Cutter assemblage or cutter element therefor [e.g., chain saw chain]
- Y10T83/913—With means permitting removal of cutter element
Definitions
- Machine tool cutting devices in particular manual machine cutting devices, are already known which have a cutting strand which comprises at least two cutter carrier elements connected to one another.
- 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 having at least two interconnected
- the at least two cutter support elements are connected to each other by means of at least one connecting element of the cutting strand, which terminates at least substantially flush with at least one outer surface of one of the at least two cutter support elements.
- 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 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
- the cutting strand is circumferentially moved in at least one operating state, in particular along a circumferential direction of a guide unit of the power-tool parting device. Under a
- cutting carrier element is to be understood here as meaning in particular an element on which at least one cutting element is arranged for separating and / or removing material particles of a workpiece to be machined
- connecting element should in particular define an element which is intended for this purpose, at least to connect two components positively and / or non-positively with each other, in particular to connect with each other movably to transmit a driving force and / or a drive torque.
- the term “provided” should be understood to mean in particular specially designed and / or specially equipped.
- “Completely flush at least” should in particular be understood to mean an arrangement of the connecting element in an assembled state, wherein the connecting element is separated from one another viewed in a integrally formed with one of the cutter support elements connecting element along a transverse axis of the connecting element within the at least one connecting element receiving the connecting recess extends and extends to a maximum extent to an outer surface of the cutter support member which extends the connecting recess having.
- the connecting element extends in an assembled state, in particular in a connecting element formed separately from the cutter support elements, maximally from an outer surface of one of the cutter support elements to a further outer surface of one of the cutter carrier elements.
- the connecting element is at least partially formed in one piece with at least one of the at least two cutter support elements.
- one-piece should be understood here in particular at least materially connected, for example, by a welding process, an adhesive process, Anspritzrata and / or another, a person skilled in the appear reasonable process, and / or advantageously understood in one piece, such as by one-off production and / or manufacture in a single or multi-component Tenspritzvon and advantageous from a single blank.
- the cutter carrier elements particularly preferably each have a connecting element and a connecting recess for receiving a connecting element of a further cutter carrier element which can be connected to the respective cutter carrier element.
- the connecting element is designed as a component formed separately from the cutter carrier elements.
- the cutter support elements preferably each have two connecting recesses into each of which a connecting element can be inserted.
- the connecting element is designed as a longitudinal extension of at least one of the at least two cutter support elements.
- each cutter support element of the cutting strand has at least one connecting element formed as a longitudinal extension and a connecting recess corresponding to the connecting element.
- a “longitudinal extension” is to be understood here in particular as an element formed integrally with the cutter carrier element, which extends at least substantially along a longitudinal extent of the cutter carrier element and which is intended to connect in a state connected to another cutter carrier element, in particular a positive connection
- a movable connection is realized by means of an interaction of the longitudinal extension of the cutter support element and the connecting recess of the further cutter carrier element correspondingly designed with the longitudinal extension, in particular a pivotable connection of the cutter carrier elements relative to each other
- the longitudinal extent of the cutter carrier element preferably runs at least substantially parallel to one Main direction of movement of the
- substantially parallel is to be understood here as meaning, in particular, an alignment of a direction relative to a reference direction, in particular in a plane, wherein the direction relative to the reference direction is a deviation, in particular less than 8 °, advantageously less than 5 ° and particularly advantageously less than 2 °. According to the invention configuration can be advantageously realized an easy-to-install connection between the cutter support elements.
- the longitudinal extension is hook-shaped.
- hook-shaped is to be understood here as meaning, in particular, a geometric configuration of the longitudinal extension which, viewed along the longitudinal extent of the cutter carrier element, enables the edge recess of the connecting recess to engage behind in an interconnected state of the cutter carrier elements formed in the cutting plane of the cutting strand, in particular deviating from a rod-shaped extension, to which a circular positive-locking element is formed and / or in particular deviating from a semicircular extension.
- the connecting element is designed as a bolt.
- the bolt is cylindrical.
- the bolt is rotationally symmetrical about at least one axis.
- the connecting element formed as a bolt can be formed integrally or separately from the cutter support element.
- the connecting element has another, a skilled person appear useful design. It can be achieved structurally simple, a connecting element.
- Cutting support elements has at least one cross-securing element, which is provided to prevent a transverse movement of the cutter support elements in a coupled state of the cutter support elements relative to each other at least as much as possible.
- each cutter support element of the power-tool parting device has at least two transverse securing elements.
- the at least two transverse securing elements are provided to prevent a relative transverse movement of the interconnected cutter support elements in two mutually oppositely directed directions, at least for the most part.
- one of the at least two transverse securing elements is preferably provided in each case for at least a transverse movement running along one of the oppositely directed directions. to prevent as far as possible.
- the at least two transverse securing elements are preferably offset relative to each other, in particular angularly offset, arranged on the cutter carrier element.
- the expression "a transverse movement of the cutter support elements in a coupled state relative to each other at least to prevent as far as possible” is here in particular a limitation of movement of the connected by means of connecting elements cutter support elements relative to each other by means of Querer Schweizerungsele- along an at least substantially perpendicular to a longitudinal axis
- the distance of movement of the cutter support elements relative to one another is hereby restricted to a value of less than 5 mm, preferably less than 2 mm and particularly preferably less than 1 mm, in particular by means of the transverse securing element
- the transverse securing element is intended to provide a transverse movement by means of a transverse movement Others, at least as far as possible to avoid or limit a person skilled in the sense appear reasonable, such as by means of a frictional connection.
- the transverse securing element is integrally formed by means of an embossing process to the at least one of the at least two cutter support elements.
- the transverse securing element it is also conceivable for the transverse securing element to be arranged on the cutter carrier element by means of another method which appears appropriate to a person skilled in the art, for example by means of a casting method, by means of an adhesive method, by means of a soldering method, by means of a milling method etc.
- At least one of the at least two cutter carrier elements has at least one segment guide element which is provided for a movement of the at least one of the at least two cutter carrier elements in a state arranged in a guide unit in a direction away from the guide unit, at least along a direction extending at least substantially parallel to a cutting plane of the cutting strand direction.
- each cutter carrier element of the cutting strand of the machine tool cutting device has at least one segment guide element provided for this purpose, a movement of the at least one of the at least two
- Cutting carrier elements viewed in a arranged in a guide unit state in a direction away from the guide unit direction to limit at least along at least substantially parallel to a cutting plane of the cutting strand extending direction.
- the machine tool separating device preferably has at least one guide unit
- Receiving the cutting strand which comprises at least one corresponding to the segment guide element segment counter-guide element.
- structurally simple guidance can be achieved along a direction of the cutting strand running at least substantially parallel to a cutting plane of the cutting strand.
- the power-tool parting device has at least one guide unit for receiving the cutting strand, in which the connecting element is guided at least partially.
- a “management unit” is to be understood here as meaning, in particular, a unit which is intended to be a unit
- 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 term "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.
- the term "at least essentially transversal" should in this case be understood to mean in particular an alignment of a plane and / or a direction relative to a further plane and / or a further direction, which preferably depends on a parallel orientation of the plane and / or the direction relative to
- the cutting plane it is also conceivable for the cutting plane to be aligned at least substantially parallel to a workpiece surface to be machined during machining of a workpiece, in particular when the cutting strand is designed as an abrasive, etc.
- an orientation of a direction relative to a reference direction in particular in a plane, should be understood, wherein the direction relative to the reference direction is a deviation, in particular less than 8 °, advantageously less than 5 ° and particularly advantageously less than 2 ° having.
- a "cutting direction” is to be understood here in particular as meaning 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
- the cutting strand and the guide unit preferably together form a closed system Viewing cutting plane, having a self-contained outer contour, the at least two mutually parallel straight lines and at least two each mutually facing ends of the straight line interconnecting connecting portions, in particular circular arcs, comprises
- "closed system” is intended here to define a system which comprises at least two components which retain functionality and / or disassemble by means of cooperation in a disassembled state of the system from a system superordinate to the system, such as a machine tool are permanently connected to each other.
- the at least two components of the closed system are at least substantially inseparably connected to each other for an operator.
- at least substantially insoluble should be understood in particular a connection of at least two components, the only under 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.
- separation tools such as a saw, in particular a mechanical saw, etc.
- chemical release agents such as solvents, etc.
- the power-tool parting device comprises at least one torque-transmitting element at least partially supported in the guide unit.
- the torque transmitting element is at least partially surrounded along at least one direction by side walls of the guide unit.
- the torque transmission element has a concentric coupling recess into which a pinion of a drive unit of a portable power tool and / or a gear and / or a toothed shaft of a gear unit of the portable power tool 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.
- 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.
- Cutting carrier elements on a side facing the torque transmitting element side of the cutter support member at least one recess into which engages the torque transmitting element in at least one operating state for driving the cutting strand.
- all cutter support elements of the cutting strand on the torque transmitting element facing sides of the cutter support elements at least one recess into which engages the torque transmitting element in at least one operating state for driving the cutting strand. It can structurally simple forces and / or torques are transmitted to drive the cutting strand to the cutter support element.
- at least one of the at least two cutter carrier elements is formed on a side of the cutter carrier element facing at least partially in the guide unit torque transmitting element at least substantially circular arc.
- the side of the at least one of the at least two cutter support elements facing the torque transmission element in an assembled state is in particular in at least one partial area, between a central axis of the connecting element arranged in and / or on the respective cutter carrier element and a central axis of a connecting recess of the respective cutter carrier element for receiving the connecting element viewed, circular arc designed.
- the arcuate portion is adjacent to the recess into which the torque transmitting element engages formed.
- the circular-arc-shaped partial region has a radius which corresponds at least essentially to a radius of a deflection contour of the guide unit, in particular a deflection contour of a guide element of the guide unit arranged on a convex end.
- the side of the blade carrier element facing the torque transmission element in an assembled state, in particular the subregion, is concave. It may be advantageous to achieve a deflection of the cutter support element in an operation of the power tool separating device. Furthermore, advantageously, a small deflection radius can be realized during a deflection of the cutter support element.
- the connecting element has a porous structure.
- a "porous structure” is to be understood here in particular as meaning a structure which has a plurality of cavities which are arranged within a total volume of a body and / or a material and thus influence a density of the body and / or the material
- the connecting element has a pore density which is greater than 10 ppi (pores per inch), preferably greater than 35 ppi and particularly preferably greater than 50 ppi
- the term "open porosity” is intended here to mean a connection of the cavities and / or the pores to one another and an interaction of the cavities and / or the pores with the one be understood the connecting element adjacent environment.
- the connecting element can for example be advantageously impregnated with lubricant. As a result, a lifetime can be advantageously increased and a maintenance intensity can be advantageously reduced.
- the invention is based on a portable power tool with a coupling device for positive and / or non-positive coupling with a machine tool separating 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
- the machine tool separating device according to the invention and the portable machine tool according to the invention forming a machine tool system can be advantageously achieved, and a portable machine tool can be advantageously achieved 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 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 is a detailed view of the machine tool separating device according to the invention in a schematic representation
- Fig. 3 is a detail view of cutter support elements of a
- FIG. 4 shows a further detailed view of one of the cutter carrier elements of the cutting strand of the machine tool separating device according to the invention in a schematic representation
- FIG. 5 shows a detailed view of an arrangement of the FIGS
- FIG. 6 is a detailed view of an alternative machine tool separating device according to the invention in a schematic representation
- FIG. 8 is a detail view of an arrangement of
- 9 is a detail view of cutter support elements of a
- 10 is a sectional view of the cutter support elements along the line XX of Figure 9 in a schematic representation
- 11 is a detail view of a mounting position of
- FIG. 13 shows a sectional view of the cutter support elements along the line XIII-XIII of FIG. 12 in a schematic representation
- FIG. 14 shows a detailed view of an assembly position of FIG
- FIG. 1 shows a portable machine tool 42a with a machine tool separating device 10a, which together form a machine tool system.
- the portable power tool 42a has a coupling device 44a for the positive and / or non-positive coupling with the machine tool separating device 10a.
- the coupling device 44a can be embodied as a bayonet closure and / or as another coupling device that appears meaningful to a person skilled in the art.
- the portable power tool 42a has a power tool housing 46a, which encloses a drive unit 48a and a gear unit 50a of the portable power tool 42a.
- the drive unit 48a and the gear unit 50a are operatively connected together in a manner already known to a person skilled in the art in order to generate a drive torque that can be transmitted to the power-tool parting device 10a.
- the gear unit 50a is designed as an angle gearbox.
- the drive unit 48a is designed as an electric motor unit. However, it is also conceivable for the drive unit 48a and / or the gear unit 50a to have another configuration that appears appropriate to a person skilled in the art.
- the drive unit 48a is provided to drive a cutting strand 12a 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 42a has at least one driving mode in which a drive of the cutting strand 12a in a guide unit 30a of the power-tool parting device 10a along a cutting direction 52a of the cutting strand 12a with a cutting speed less than 6 m / s is made possible.
- FIG. 2 shows the power-tool parting device 10a in a state decoupled from the coupling device 44a of the portable power tool 42a.
- the machine tool separating device 10a has the cutting strand 12a and the guide unit 30a, which together form a closed system.
- the guide unit 30a is designed as a sword. Furthermore, the
- Guide unit 30a viewed in a cutting plane of the cutting strand 12a, at least two convex ends 54a, 56a.
- the convex ends 54a, 56a of the guide unit 30a are arranged on two opposite sides of the guide unit 30a.
- the cutting strand 12a is guided by the guide unit 30a.
- the guide unit 30a For this purpose, the guide unit
- the guide element 58a is in this case formed as a guide groove 60a, which extends in a cutting plane of the cutting strand 12a along an entire circumference of the guide unit 30a.
- the cutting strand 12a is guided by means of the guide groove 60a delimiting edge regions of the guide unit 30a.
- the guide element 58a it is also conceivable for the guide element 58a to be formed in another manner that appears appropriate to a person skilled in the art, such as, for example, as rib-like molding on the guide unit 30a, which engages in a recess on the cutting strand 12a.
- the cutting strand 12a is, in a perpendicular to
- the power-tool parting device 0a has a torque-transmitting element 32a supported by the guide unit 30a for driving the cutting strand 12a.
- the torque transmitting member 32a is in an assembled state in a direction perpendicular to the cutting plane
- the torque transmitting element 32a is in a coupled Pelten state for driving the cutting strand 12a with a pinion (not shown here) of the drive unit 48a and / or a gear (not shown here) and / or a toothed shaft (not shown here) coupled to the transmission unit 50a.
- the Drehmomentübertragungs- element 32 a has a coupling recess 62 a, which is coupled in an assembled state with a drive element of the portable power tool 42 a.
- the coupling recess 62a is concentrically disposed in the torque transmitting member 32a.
- the coupling recess 62 a is provided, in a coupled state of the torque transmission element 32 a and / or the power-tool parting device 10 a with the
- the coupling recess 62a is formed as a hexagon socket. However, it is also conceivable for the coupling recess 62a to have another configuration that appears appropriate to a person skilled in the art.
- the cutting strand 12a has a plurality of interconnected
- Cutting support elements 14a, 16a which are each interconnected by means of a connecting element 18a, 20a of the cutting strand 12a, which is at least substantially flush with one of two outer surfaces 22a, 24a of one of the interconnected cutter support elements 14a, 16a ( Figure 3).
- the outer surfaces 22a, 24a extend in a state arranged in the guide groove 60a of the cutting strand 12a at least substantially parallel to the cutting plane.
- Cutting strand 12a select a suitable number of cutter support elements 14a, 16a.
- the connecting elements 18a, 20a are formed as bolts 26a, 28a.
- the connecting elements 18a, 20a are each formed integrally with one of the cutter support elements 14a, 16a.
- the cutter carrier elements 14a, 16a each have a connecting recess 64a, 66a for receiving one of the connecting elements 18a, 20a of the mutually connected cutter carrier elements 14a, 16a.
- the connecting elements 18a, 20a are guided by means of the guide unit 30a (FIG. 5).
- the connecting elements 18a, 20a are arranged in an assembled state of the cutting strand 12a in the guide groove 60a.
- the connecting elements 18a, 20a can, viewed in a plane perpendicular to the cutting plane, be supported on two side walls 68a, 70a of the guide groove 60a.
- the side walls 68a, 70a of the guide groove 60a viewed in the cutting plane, extend outward from the guide unit 30a perpendicular to the cutting direction 52a of the cutting strand 12a.
- the side walls 68a, 70a are formed integrally with the outer walls 72a, 74a of the guide unit 30a.
- the connecting elements 18a, 20a have a porous structure.
- the connecting elements 18a, 20a each have a plurality of cavities 90a, 92a, 104a, 106a, which are arranged within total volumes of the connecting elements 18a, 20a.
- the cavities 90a, 92a, 104a, 106a are formed as pores.
- the cavities 90a, 92a, 104a, 106a can be arranged uniformly and / or unevenly distributed in the total volumes of the connecting elements 18a, 20a.
- the connecting elements 18a, 20a are each impregnated with a lubricant (not shown here in detail) which is intended to lubricate the joints 64a, 66a and the guide groove 60a movably arranged connecting elements 18a, 20a in the kausauslangun-.
- the lubricant is in this case arranged in the cavities 90a, 92a, 104a, 106a of the connecting elements 18a, 20a which are in the form of pores.
- the cutter support elements 14a, 16a of the cutting strand 12a further each have a recess 38a, 40a, which is arranged in each case in an assembled state on the torque transmitting element 32a facing side 34a, 36a of the respective cutter support member 14a, 16a.
- the torque transmission element 32a engages in the recesses 38a, 40a in at least one operating state for driving the cutting strand 12a.
- the torque transmitting element 32a is formed here as a gear.
- the torque transmitting element 32a includes teeth (not shown in detail here) which are intended to engage in at least one operating state for driving the cutting strand 12a into the recesses 38a, 40a of the cutter support elements 14a, 16a.
- the torque transmission Adjacent 32a facing sides 34a, 36a of the cutter support elements 14a, 16a circular arc-shaped.
- the sides 34a, 36a of the cutter support elements 14a, 16a which face the torque transmission element 32a in an assembled state are each in partial regions 76a, 78a, 100a, 102a, between a central axis 80a of the respective connecting element 18a.
- the arcuate portions 76a, 78a, 100a, 102a are respectively formed adjacent to the recesses 38a, 40a into which the torque transmitting member 32a engages.
- the circular arc-shaped partial areas 76a, 78a, 100a, 102a have a
- the partial regions 76a, 78a, 100a, 102a are concave (FIGS. 3 and 4). Furthermore, the cutting strand 12a has cutting elements 86a, 88a.
- Cutting elements 86a, 88a are each formed integrally with one of the cutter support elements 14a, 16a. A number of the cutting elements 86a, 88a are dependent on a number of cutter support elements 14a, 16a. A person skilled in the art will select a suitable number of cutting elements 86a, 88a depending on the number of cutter carrier elements 14a, 16a. The cutting elements
- the cutting elements 86a, 88a are intended to allow a separation and / or removal of material particles of a workpiece to be machined (not shown here).
- the cutting elements 86a, 88a can be designed, for example, as a solid chisel, as a 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 12a is endless. Thus, the cutting strand 12a is formed as a cutting chain.
- the blade carrier elements 14a, 16a are in this case designed as chain links, which are connected to one another by means of the bolt-shaped connecting elements 18a, 20a.
- the cutting strand 12a, the cutter support elements 14a, 16a and / or the connecting elements 18a, 20a are configured in another manner that appears appropriate to a person skilled in the art.
- FIG. 6 shows an alternative power tool separating apparatus 10b having a cutting string 12b having a plurality of interconnected ones
- cutter support elements 14b, 16b Includes cutter support elements 14b, 16b.
- the machine tool separating device 10b can be operatively coupled to a coupling device (not shown here in detail) of a portable machine tool (not shown here in detail).
- the portable power tool and the coupling device in this case have an embodiment analogous to the exemplary embodiment described in FIGS. 1 to 5.
- the cutter support elements 14b, 16b are each connected to one another by means of a connecting element 18b, 20b, 96b of the cutting strand 12b (FIG. 7).
- the connecting elements 18b, 20b, 96b in an assembled state close at least essentially flush with outer surfaces 22b, 24b of the cutter carrier elements 14b.
- the connecting elements 18b, 20b, 96b are designed as bolts 26b, 28b, 98b. Furthermore, the connecting elements 18b, 20b, 96b are formed separately from the cutter support elements 14b, 16b. During assembly of the cutting strand 12b, the cutter support elements
- connection recesses 64b, 66b, 94b, 112b of the cutter support elements 14b, 16b until the connecting elements 18b, 20b terminate at least substantially flush with the outer surfaces 22b, 24b of the cutter support elements 14b, 16b.
- the connecting elements 18b, 20b, 96b are guided in a mounted state of the cutting strand 12b in a guide unit 30b of the power-tool parting device 10b by means of the guide unit 30b (FIG. 8).
- the connecting elements 18b, 20b, 96b are arranged in a mounted state of the cutting strand 12b in a guide groove 60b of the guide unit 30b.
- the Connecting elements 18b, 20b, 96b can, viewed in a plane perpendicular to a cutting plane, be supported on two side walls 68b, 70b of the guide groove 60b.
- the side walls 68b, 70b of the guide groove 60b extend outward from the guide unit 30b perpendicular to a cutting direction 52b of the cutting strand 2b. Further, the side walls 68b, 70b are formed integrally with outer walls 72b, 74b of the guide unit 30b.
- the connecting elements 18b, 20b, 96b have a porous structure.
- the connecting elements 18b, 20b, 96b each have a plurality of cavities 90b, 92b, 104b, 106b, 108b, 110b, which are arranged within total volumes of the connecting elements 18b, 20b, 96b.
- the cavities 90b, 92b, 104b, 106b, 108b, 110b are formed as pores.
- the cavities 90b, 92b, 104b, 106b, 108b, 110b can hereby be arranged uniformly and / or unevenly distributed in the total volumes of the connecting elements 18b, 20b, 96b.
- the connecting elements 18b, 20b, 96b are each impregnated with a lubricant (not shown here in detail), which is intended to lubricate the connecting elements 18b movably arranged in the connecting recesses 64b, 66b, 94b, 112b and in the guide groove 60b, 20b, 96b to lubricate.
- the lubricant is in this case in the pores formed as cavities 90b, 92b, 104b, 106b, 108b, 11 Whether the connecting elements 18b, 20b, 96b arranged.
- FIG. 9 shows two mutually coupled cutter carrier elements 14c, 16c of a cutting strand 12c of a further, alternative power tool separating device 10c.
- the cutter support elements 14c, 16c are connected to one another by means of at least one connecting element 18c of the cutting strand 12c, which terminates at least substantially flush with at least one outer surface 22c, 24c of one of the at least two cutter support elements 14c, 16c (FIG. 10c).
- the connecting element 18c viewed along a
- Transverse axis of the connecting element 18c flush with both outer surfaces 22c, 24c of the at least two cutter support elements 14c, 16c.
- the transverse axis of the connecting element 18c extends in a mutually coupled state of the cutter support elements 14c, 6c at least substantially perpendicular to a cutting plane of the cutting strand 12c.
- the connection Element 18c is formed integrally with one of the two cutter support elements 14c, 16c.
- the connecting element 18c is designed as a longitudinal extension of one of the at least two cutter support elements 14c, 16c.
- the connecting element 18c designed as a longitudinal extension extends at least substantially along a longitudinal extension of the cutter support element 14c, with which the connecting element 18c is integrally formed.
- Each cutter carrier element 14c, 16c of the cutting strand 12c of the power-tool parting device 10c has in each case a connecting element 18c, 20c designed as a longitudinal extension and in each case a connecting recess 64c, 66c formed correspondingly with the connecting element 18c.
- the individual connecting elements 18c, 20c of the cutter support elements 14c, 16c are respectively provided for forming the cutting strand 12c designed as a cutting chain to realize a positive connection between the cutter support elements 14c, 16c by means of cooperation with a connecting recess 64c, 66c, by means of which the cutter support elements 14c , 16c are pivotally connected together.
- the connecting element 18c designed as a longitudinal extension has a transverse securing region 114c on one side.
- the transverse securing region 114c is provided to prevent, by means of cooperation with at least one transverse securing element 118c, 120c, transverse movement of the cutter carrier elements 14c, 16c along at least two oppositely directed directions in a coupled state relative to one another, at least as far as possible.
- the transverse securing portion 114c is formed as a rib.
- the transverse securing region 114c has another configuration which appears expedient to a person skilled in the art, such as an embodiment as a groove etc.
- the transverse securing region 114c is arranged on a side of the connecting element 18c facing a cutting element 86c formed integrally with the cutter carrier element 14c , In this case, the transverse securing region 114c, viewed in the cutting plane of the cutting strand 12c, extends in the manner of an annular segment on the connecting element 18c.
- each of the cutter carrier elements 14c, 16c has at least two transverse securing elements 118c, 120c, 122c, 124c.
- the transverse securing elements 18c, 120c, 122c, 124c are each arranged in an edge region of the respective cutter carrier element 14c, 16c delimiting the connecting recesses 64c, 66c.
- the transverse securing elements 118c, 120c, 122c, 124c are formed integrally with the cutter support elements 14c, 16c.
- the transverse securing elements 118c, 120c, 122c, 124c are integrally formed in each case by means of an embossing process to the respective cutter support element 14c, 16c.
- the transverse securing elements 118c, 120c, 122c, 124c viewed along a direction extending at least substantially perpendicular to the cutting plane of the cutting strand 12c, extend as far as the outer surfaces 22c, 24c of the cutter support elements 14c, 16c.
- the transverse securing elements 118c, 120c, 122c, 124c to be integrally formed on the respective cutter carrier element 14c, 16c by means of another method that appears appropriate to a person skilled in the art, for example by means of a welding method, by means of an adhesive method, by means of a stamping method , by means of a bending process, etc.
- the two transverse securing elements 118c, 120c, 122c, 124c arranged on each of the cutter support elements 14c, 16c, viewed along a direction at least substantially perpendicular to the cutting plane of the cutting strand 12c, are arranged on opposite sides of the cutter carrier elements 14c, 16c.
- the two transverse securing elements 118c, 120c, 122c, 124c arranged on each of the cutter carrier elements 14c, 16c are arranged offset relative to one another on the respective cutter carrier element 14c, 16c.
- the cross-securing elements 118c, 120c, 122c, 124c with respect to the cutting plane of the cutting strand 12c, differing from a mirror-symmetrical arrangement on the Schneiden similarly- arranged elements 14c, 16c.
- the transverse securing elements 1 18c, 120c, 122c, 124c are formed as partial extensions on an edge region of the connecting recesses 64c, 66c.
- transverse securing elements 118c, 120c, 122c, 124c have another configuration and / or arrangement which appears expedient to a person skilled in the art, such as, for example, a design as parallel webs which form a groove-shaped recess in the edge region of the respective Connection recess 64c, 66c, viewed along a direction at least substantially perpendicular to the cutting plane of the cutting strand 12c extending direction limit.
- At least one of the at least two cutter support elements 14c, 16c has at least one segment guide element 126c, which is provided, a movement of the at least one of the at least two cutter support elements 14c, 16c, in a in a guide unit (not shown in detail here) of the power tool cutting device 10c arranged state considered in a direction away from the guide unit direction to limit at least along at least substantially parallel to the cutting plane of the cutting strand 12c extending direction.
- the segment guide element 126c is formed by a transverse extension which delimits a longitudinal groove.
- the segment guide element 126c designed as a transverse extension extends at least substantially perpendicular to the cutting plane of the cutting strand 12c.
- the segment guide element 126c is intended to cooperate with a movement limit with a segment counter-guide element arranged on the guide unit (not shown here in detail), which is formed in correspondence with the segment guide element 126c.
- the segment guide element 126c it is also conceivable for the segment guide element 126c to have another configuration that appears appropriate to a person skilled in the art, such as an embodiment as a rib, etc., which interacts with a groove arranged on the guide unit to form a movement limitation.
- Each cutter support member 14c, 16c of the cutter string 12c includes a segment guide member 126c, 128c provided to move the at least one of the at least two cutter support members 14c, 16c in a state disposed in a guide unit of the power tool separator 10c in one of facing away from the leadership unit Direction, at least along at least substantially parallel to the cutting plane of the cutting strand 12c extending direction to limit.
- the cutter support elements 14c, 16c of the cutting strand 12c also each have a drive surface 130c, 132c, which is intended to cooperate with a drive of the cutting strand 12c with drive surfaces of a torque transmission element (not shown here).
- the drive surfaces of the torque transmission element are in this case formed as tooth flanks.
- the drive surfaces 130c, 132c of the cutter support members 14c, 16c are thus formed corresponding to the drive surfaces of the torque transmitting member.
- the cutter support elements 14c, 16c are moved toward one another along a direction extending at least substantially perpendicular to the cutting plane of the cutting strand 12c (FIG. 11), the connecting elements 18c, 20c each being inserted with an insertion region into the connecting recesses 64c, 66c until the outer surfaces 22c, 24c of the cutter support elements 14c, 16c are each arranged in a common and at least substantially parallel to the outer surfaces 22c, 24c extending plane.
- the cutter support elements 14c, 16c are pivoted relative to each other about a pivot axis extending at least substantially perpendicular to the cutting plane of the cutting strand 12c, until the transverse securing regions 114c, 116c are respectively pushed between the transverse securing elements 118c, 120c, 122c, 124c or until the insertion regions of the connecting elements 18c , 20c abut on the connecting recesses 64c, 66c along the longitudinal extent of the cutter support elements 1 c, 16 c delimiting edge regions.
- the cutter support members 14c, 16c are pivotally supported relative to one another by means of an interaction of the connecting members 18c, 20c and the connecting recesses 64c, 66c.
- FIG. 12 shows two mutually coupled cutter carrier elements 14d, 16d of a cutting strand 12d of a further, alternative machine tool separating device 10d.
- the blade carrier elements 14d, 16d are by means of at least one connecting element 18d of the cutting strand 12d connected to each other, at least substantially flush with at least one outer surface 22d, 24d of at least two cutter support elements 14d, 16d terminates ( Figure 13).
- the connecting element 18d viewed along a longitudinal axis of the connecting element 18d, terminates flush with an outer surface 22d of one of the at least two cutter support elements 14d, 16d.
- the longitudinal axis of the connecting element 18d extends at least substantially perpendicular to a cutting plane of the cutting strand 12d.
- the connecting element 18d is formed integrally with at least one of the at least two cutter support elements 14d, 16d.
- the connecting element 18d is formed here as a bolt 26d.
- the bolt 26d extends along a direction extending at least substantially perpendicular to a cutting plane of the cutting strand 12d.
- Each cutter support element 14d, 16d of the cutting strand 12d of the power-tool parting device 10d has in each case a connecting element 18d, 20d designed as bolts 26d, 28d and in each case a connecting recess 64d, 66d formed correspondingly with the connecting element 18d, 20d.
- the individual connecting elements 18d, 20d of the cutter support elements 14d, 16d are respectively provided for forming the cutting strand 12d formed as a cutting chain by means of cooperation with a connecting recess 64d, 66d to realize a positive connection between the cutter support elements 14d, 16d, by means of which the cutter support elements 14d Furthermore, the cutter support elements 14d, 16d each have at least one transverse securing element 118d, 122d, which is intended to prevent transverse movement of the cutter carrier elements 14d, 16d in a coupled state relative to each other at least as far as possible. In addition, the cutter support elements 14d, 16d have a transverse securing region 114d, 116d. The transverse fuse regions 114d, 116d are respectively formed corresponding to the transverse fuse elements 118d, 122d to be connected by means of a
- transverse securing elements 118d, 22d In cooperation with the transverse securing elements 118d, 22d, a transverse movement of the cutter support elements 1d, 16d in a coupled state is at least largely avoided.
- the transverse securing elements 118d, 122d are formed as extensions.
- the cross-securing elements 1 18d, 122d are each arranged in a coupling region 134d, 136d of the cutter support elements 14d, 16d.
- the transverse securing elements 118d, 122d together with the respective coupling region 134d, 136d define a groove-shaped recess extending at least substantially parallel to the cutting plane of the cutting strand 12d to receive the respective transverse sealing region 114d, 116d in a coupled state of the cutter support elements 14d, 16d.
- the connecting recesses 64d, 66d are arranged, into which the connecting elements 18d, 20d are introduced for realizing a positive connection during assembly of the cutting strand 12d.
- the transverse securing elements 118d, 122d are integrally formed with the cutter support elements 14d, 16d.
- the transverse securing elements 118d, 122d are integrally formed in each case by means of an embossing process to the respective cutter support element 14d, 16d.
- the transverse securing elements 118d, 122d viewed along a direction extending at least substantially perpendicular to the cutting plane of the cutting strand 12d, extend as far as the outer surfaces 22d, 24d of the cutter support elements 14d, 16d.
- transverse securing elements 118d, 122d to be integrally formed on the respective cutter support element 14d, 16d by means of another method that appears appropriate to a person skilled in the art, for example by means of a welding method, by means of an adhesive method, by means of a stamping method, by means of a bending method etc.
- transverse securing regions 114d, 116d are, viewed along a cutting direction 52d, respectively on one side of the respective cutter carrier element 14d,
- the transverse securing regions 114d, 116d are each formed as a rib-shaped longitudinal extension.
- the transverse fuse regions 114d, 116d have another design that appears expedient to a person skilled in the art, such as a design as a groove, etc.
- Cross-securing elements 118d, 122d cover the transverse securing regions 114d, 116d in a coupled state of the cutter support elements 14d, 16d in order to at least largely avoid transverse movement of the cutter carrier elements 14d, 16d.
- the cutter support elements 14d, 16d each have a segment guide element 126d, 128d, which is provided for movement of the cutter support elements 14d, 16d in a state arranged in a guide unit (not shown in detail here) of the power tool separating device 10d in one of the guide unit Seen in the opposite direction, at least along at least substantially parallel to the cutting plane of the cutting strand 12d extending direction to limit.
- the segment guide elements 126d, 128d are formed by a longitudinal groove. In this case, the segment guide elements 126d, 128d are provided to cooperate with a movement limit arranged on the guide unit segment counter-guide element (not shown here), which is formed in correspondence with the segment guide elements 126d, 128d.
- Die carrier elements are transverse fuse areas by a stamping process after connecting the cutter support elements by means of a
- Cutting carrier elements is formed, directly embossed on the bolt-shaped connecting element.
- transverse securing elements are formed by an edge region of a connecting recess which is surrounded by the cutter carrier elements.
- the cutter support elements 14d, 16d are moved toward one another along a direction extending at least substantially perpendicular to the cutting plane of the cutting strand 12d (FIG. 14), wherein the connecting elements 18d, 20d are respectively along the at least substantially perpendicular to the cutting plane of the cutting strand 12d extending direction in the connecting recesses 64d, 66d are introduced to outer surfaces 22d, 24d of the cutter support elements 14d, 16d abut the corresponding coupling portions 134d, 136d.
- the cutter support elements 14d, 16d are pivoted relative to one another about a pivot axis extending at least substantially perpendicularly to the cutting plane of the cutting strand 12d until the transverse securing regions 114d, 116d are respectively moved into the transverse securing elements 118d, 122d and the coupling region. Chen 134d, 136d formed groove-shaped recesses are pushed.
- the cutter support members 14d, 16d by means of an interaction of the connecting elements 18d, 20d and the connecting recesses 64d, 66d are pivotally mounted relative to each other.
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Sawing (AREA)
- Details Of Cutting Devices (AREA)
- Milling Processes (AREA)
- Surgical Instruments (AREA)
- Shearing Machines (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201110005011 DE102011005011A1 (en) | 2011-03-03 | 2011-03-03 | Machine tool separating device |
PCT/EP2012/000939 WO2012116834A1 (en) | 2011-03-03 | 2012-03-02 | Power tool separation device |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2681022A1 true EP2681022A1 (en) | 2014-01-08 |
EP2681022B1 EP2681022B1 (en) | 2015-10-07 |
Family
ID=46062213
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12720407.1A Not-in-force EP2681022B1 (en) | 2011-03-03 | 2012-03-02 | Power tool separation device |
Country Status (6)
Country | Link |
---|---|
US (2) | US10052785B2 (en) |
EP (1) | EP2681022B1 (en) |
CN (1) | CN103415376B (en) |
DE (1) | DE102011005011A1 (en) |
RU (1) | RU2604506C2 (en) |
WO (1) | WO2012116834A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011005011A1 (en) | 2011-03-03 | 2012-09-06 | Robert Bosch Gmbh | Machine tool separating device |
DE102012215460A1 (en) * | 2012-08-31 | 2014-03-06 | Robert Bosch Gmbh | Cutting strand segment |
US11311952B2 (en) | 2018-01-31 | 2022-04-26 | Milwaukee Electric Tool Corporation | Reciprocating saw |
CN115462297B (en) * | 2022-10-20 | 2024-04-23 | 天长市天荣木业制品厂 | Saw chain for felling |
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2011
- 2011-03-03 DE DE201110005011 patent/DE102011005011A1/en active Pending
-
2012
- 2012-03-02 EP EP12720407.1A patent/EP2681022B1/en not_active Not-in-force
- 2012-03-02 RU RU2013144248/13A patent/RU2604506C2/en not_active IP Right Cessation
- 2012-03-02 US US14/001,585 patent/US10052785B2/en not_active Expired - Fee Related
- 2012-03-02 CN CN201280011242.XA patent/CN103415376B/en active Active
- 2012-03-02 WO PCT/EP2012/000939 patent/WO2012116834A1/en active Application Filing
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2018
- 2018-05-31 US US15/994,280 patent/US10695939B2/en not_active Expired - Fee Related
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Also Published As
Publication number | Publication date |
---|---|
US10052785B2 (en) | 2018-08-21 |
WO2012116834A1 (en) | 2012-09-07 |
US20140041502A1 (en) | 2014-02-13 |
RU2604506C2 (en) | 2016-12-10 |
DE102011005011A1 (en) | 2012-09-06 |
US20180272556A1 (en) | 2018-09-27 |
US10695939B2 (en) | 2020-06-30 |
CN103415376B (en) | 2016-01-13 |
EP2681022B1 (en) | 2015-10-07 |
CN103415376A (en) | 2013-11-27 |
RU2013144248A (en) | 2015-04-10 |
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