EP2841241A1 - Segment de brin de coupe - Google Patents
Segment de brin de coupeInfo
- Publication number
- EP2841241A1 EP2841241A1 EP13706526.4A EP13706526A EP2841241A1 EP 2841241 A1 EP2841241 A1 EP 2841241A1 EP 13706526 A EP13706526 A EP 13706526A EP 2841241 A1 EP2841241 A1 EP 2841241A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cutting
- strand
- machine tool
- cutting element
- segment
- 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.)
- Withdrawn
Links
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
- B27B33/142—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
- B27B33/00—Sawing tools for saw mills, sawing machines, or sawing devices
- B27B33/14—Saw chains
- B27B33/142—Cutter elements
- B27B33/145—Cutter elements having plural teeth on a single link
Definitions
- the invention is based on a cutting strand segment of a cutting strand of a power-tool parting device, with at least one cutting element having at least one cutting edge running at least substantially transversely to a side surface of the cutting element.
- cutting edge together with the side surface of the cutting element, include an angle other than 90 °.
- cutting strand segment is here in particular a segment of a
- Cutting strand are understood, which is intended to be connected to form the cutting strand with other segments of the cutting strand.
- the cutting strand segment is formed as a chain link, which is connected to form the cutting chain preferably formed as a cutting chain with other designed as chain links cutting strand segments.
- the cutting strand segment as a driving member, as a connecting member, as a cutting member, etc. of a cutting chain may be formed.
- the cutting strand can be formed here as a single-lance, two-lobe or three-lobe cutting chain.
- the cutting element can in particular as
- cutting edge should in particular define an edge of the cutting element which is intended to remove workpiece particles of the workpiece during machining of a workpiece by means of the cutting element
- 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, preferably from a parallel one Orientation of the plane and / or the direction deviates relative to the further level and / or the other direction.
- cutting plane should in particular define a plane in which the cutting strand segment is moved to a machining of a workpiece in at least one operating state.
- side surface should in particular define an area of the cutting element which extends at least substantially parallel to a cutting direction of the cutting strand segment or cutting strand
- the side surface of the cutting element defines at least substantially transversely to the cutting surface
- a "cutting direction” is to be understood here in particular as a direction along which the cutting strand segment or the cutting strand for generating a cutting gap and / or for separating and / or abrading material particles of a workpiece to be machined in at least one operating state as a result of a driving force
- the cutting strand segment comprises at least one further cutting element which has at least one cutting edge extending at least substantially transversely to one side face of the further cutting element, which together with the side face of the other Cutting elements includes a deviating from 90 ° angle.
- the cutting edge of the cutting element extends at least substantially transversely to the cutting edge of the further cutting element. This can advantageously a distribution of engagement points of the
- Cutting strand segments are made possible when machining a workpiece on small cutting edges.
- a low friction between the cutting strand segment and a workpiece can be achieved during machining, whereby heating of the workpiece during machining can be kept low.
- the cutting strand segment comprises at least one cutter support element which is formed integrally with the cutting element and the further cutting element.
- cutting carrier element should in particular define an element on which at least one cutting element is arranged for separating and / or removing material particles of a workpiece to be machined Adhesive process, a Anspritzrea and / or another, the skilled person appear useful process, and / or advantageously understood to be formed in one piece, such as by a production from a cast and / or by a production in a one- or multi-component injection molding, and advantageous from a single blank.
- the cutting element, the further cutting element and the cutter support element are punched from a single blank.
- the cutting element and the further cutting element are fixed by means of another, a person skilled in the sense appearing manner on the cutter support member, such as by means of a positive and / or non-positive connection.
- the cutting element and the further cutting element can in this case be arranged in a manner limited to the cutter carrier element.
- the cutting element and the further cutting element are arranged in particular relatively inclined to the cutting plane on the cutter support element.
- the cutting element and the further cutting element are arranged in particular relatively inclined to the cutting plane on the cutter support element.
- Cutting carrier element can be particularly advantageous assembly costs and costs saved.
- the cutting element has at least two at least substantially mutually parallel side surfaces, which in each case include an angle deviating from 90 ° together with the cutting edge of the cutting element.
- the cutting edge of the cutting element preferably includes different angles together with one of the side surfaces.
- the cutting strand segment has a maximum weight that is less than 1 g.
- the cutting strand segment has a maximum weight which is less than 0.8 g, preferably less than 0.5 g and particularly preferably less than 0.2 g. It can be advantageously achieved a light cutting strand segment.
- the cutting strand segment has a maximum volume which is smaller than 15 mm 3 .
- the cutting element together with the cutter support element has a maximum volume which is smaller than 10 mm 3 and particularly preferably smaller than 5 mm 3 . It can be advantageously realized a cost-effective production of the cutting strand segment, with a low material usage is necessary.
- the invention is based on a power-tool parting device with at least one cutting strand, which at least one according to the invention
- Cutting strand segment comprises, and with at least one guide unit to a guide of the cutting strand, wherein the guide unit and the cutting strand together form a closed system.
- a "cutting strand” is to be understood here as meaning, in particular, a unit of cutting-strand segments which is intended to locally suppress atomic cohesion of a workpiece to be machined, in particular by means of mechanical separation and / or by means of mechanical removal of Material particles of the workpiece.
- the cutting strand is 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 wear.
- the cutting strand is particularly preferably designed as a cutting chain.
- the cutting strand segments can be releasably connected, for example by means of a chain lock, etc., and / or inextricably linked to one another.
- the cutting strand is designed as a cutting band and / or cutting rope.
- the cutting strand as
- Cutting band and / or as a cutting rope the cutting strand segments are fixed directly to the cutting band and / or on the cutting cable.
- the cutting-strand segments may 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 rope.
- a "guide unit” is to 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 the cutting direction of the cutting strand, in order to allow the cutting strand to move along the cutting direction Guide element, in particular a guide groove through which the
- Cutting strand is performed.
- 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 "closed system” is intended here to define in particular a system which comprises at least two components which are assigned by means of a
- the at least two components of the closed system are at least substantially inseparably connected with one another for an operator.
- at least substantially insoluble should be understood in particular a combination 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 release agents, such as solvents, etc. , are separable from each other.
- the invention is based on a machine tool having at least one coupling device for the positive and / or non-positive coupling with a machine tool separating device according to the invention.
- the machine tool is preferably designed as a portable machine tool. Under a "portable machine tool” is here in particular a
- Machine tool in particular a hand tool, can be understood, which can be transported without transport machine by an operator.
- the portable power tool has a mass which is less than 40 kg, preferably less than 10 kg and particularly preferably less than 5 kg.
- the machine tool and the machine tool separating device preferably together form a machine tool system.
- the cutting strand segment according to the invention, the machine tool separating device according to the invention, the machine tool according to the invention and / or the machine tool system according to the invention should / should not be limited to the application and embodiment described above.
- the cutting strand segment according to the invention, the machine tool separating device according to the invention, the machine tool according to the invention and / or the machine tool system according to the invention can have a number deviating from a number of individual elements, components and units specified herein for fulfilling a mode of operation described herein.
- Show it: 1 shows a machine tool according to the invention and a machine tool separating device according to the invention, which together form a machine tool system 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 detailed view of a cutting strand segment according to the invention in a schematic representation
- Fig. 5 is a detail view of an alternative invention
- FIG. 6 shows a detailed view of a further, alternative cutting strand segment according to the invention in a schematic representation.
- Figure 1 shows a machine tool system comprising a machine tool 42a and a machine tool separator 14a.
- the machine tool 42a is designed here as a portable machine tool.
- the machine tool separating device 14a comprises at least one cutting strand 12a, which has at least one cutting strand segment 10a, and at least one guiding unit 40a for guiding the cutting strand 12a, wherein the guiding unit 40a and the cutting strand 12a together form a closed system.
- the machine tool 42a has at least one coupling device 44a for the positive and / or non-positive coupling with the machine tool separating device 14a.
- the coupling device 44a can be designed as a bayonet closure and / or as another coupling device that appears meaningful to a person skilled in the art.
- the machine tool 42a has a machine tool housing 46a, which encloses a drive unit 48a and a gear unit 50a of the machine tool 42a.
- the drive unit 48a and the gear unit 50a are effective for producing a drive torque that can be transmitted to the power-tool parting device 14a in a manner already known to a person skilled in the art. moderately connected.
- the gear unit 50a is designed as an angle gear.
- 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 the cutting strand 12a of the power-tool parting device 14a in at least one operating state via the gear unit 50a.
- the cutting strand 12a in the guide unit 40a of the power-tool parting device 14a is moved along a cutting direction 52a of the cutting strand 12a in the guide unit 40a.
- FIG. 2 shows the power-tool parting device 14a in a state decoupled from the coupling device 44a of the machine tool 42a.
- the machine tool separating device 14a has the cutting strand 12a and the guide unit 40a, which together form a closed system.
- the cutting strand 12a is guided by the guide unit 40a.
- the guide unit 40a at least one guide element designed as a guide groove (not shown in detail here), by means of which the cutting strand 12a is guided.
- the cutting strand 12a is guided by edge regions of the guide unit 40a bordering on the guide groove.
- the guide element in another, a person skilled in the sense appearing manner, such as rib-like Anformung on the guide unit 40 a, in a recess on the
- Cutting strand 12a engages, is formed.
- the cutting strand 12a comprises a total of a plurality of interconnected cutting strand segments
- the power-tool parting device 14a or the machine tool 42a has a torque-transmitting element 54a, which is used to transmit forces and / or torques to the
- Cutting strand 12a with the drive unit 48a and / or the transmission unit 50a is connectable.
- the torque transmission element during a coupling of the machine tool separating device 14a and the coupling device 44a with the cutting strand 12a connected.
- the torque-transmitting element 54a and the cutting strand 12a are engaged even after decoupling from the coupling device 44a.
- the torque-transmitting element 54a For coupling the torque-transmitting element 54a and the drive unit 48a and / or the gear unit 50a formed with the power-tool parting device 14a, the torque-transmitting element 54a has a coupling recess 56a into which a pinion (not shown here) of the drive unit 48a and / or a toothed wheel (not shown here in detail) and / or a toothed shaft (not shown here in detail) of the gear unit 50a in a mounted
- the coupling recess 56a is concentrically disposed in the torque transmitting member 54a. Further, the torque transmitting member 54a is formed as a gear. The torque transmitting member 54a is at least partially supported in the guide unit 40a. Here, the torque transmitting member 54a is along a direction perpendicular to
- FIG. 3 shows a detailed view of the cutting-strand segment 10a of the cutting strand 12a of the power-tool parting device 14a.
- the cutting strand segment 10a comprises at least one cutting element 16a, which has at least one cutting edge 22a running at least substantially transversely to a side surface 18a, 20a of the cutting element 16a.
- the cutting edge 22a, together with the side surface 18a, 20a of the cutting element 16a, includes an angle 24a, 38a other than 90 ° (FIG. 4).
- the cutting element 16a comprises at least two side surfaces 18a, 20a which extend at least substantially parallel to one another and in each case enclose an angle 24a, 38a which deviates from 90 ° together with the cutting edge 22a of the cutting element 16a.
- the at least substantially mutually parallel side surfaces 18a, 20a include the deviating from 90 ° angle 24a, 38a, viewed along a at least substantially parallel to the cutting plane and at least substantially perpendicular to the cutting direction 52a extending direction.
- the cutting strand segment 10a comprises at least one further cutting element 26a, which has at least one cutting edge 32a running at least substantially transversely to one side face 28a, 30a of the further cutting element 26a, which together with the side face 28a, 30a of the further cutting element 26a has a 90 ° includes different angles 34a, 66a.
- the side surface 28a, 30a of the further cutting element 26a in this case runs at least substantially parallel to the side surface 18a, 20a of the cutting element 16a.
- the side surface 28a, 30a of the further cutting element 26a relative to the side surface 18a, 20a of the
- Cutting elements 16a extends inclined to realize a restriction of the cutting element 16a relative to the further cutting element 26a.
- the cutting edge 22a of the cutting element 16a in this case runs at least substantially transversely to the cutting edge 32a of the further cutting element 26a.
- the cutting edge 22a of the cutting element 16a is oriented relative to the side surface 18a, 20a of the cutting element 16a along a direction different from a direction along which the cutting edge 32a of the further cutting element 26a is aligned relative to the side surface 28a, 30a of the further cutting element 26a ,
- the cutting strand segment 10a at least one
- Cutting support member 36a which is integrally formed with the cutting element 16a and the other cutting element 26a.
- the cutting strand segment 10a has the cutting element 16a, the further cutting element 26a and two additional cutting elements 68a, 70a, which are formed integrally with the cutter carrier element 36a.
- the cutting strand segment 10a has one of four different number of cutting elements.
- the cutting strand segment 10a has a maximum weight that is less than 1 g.
- a maximum weight of the cutting strand segment 10a is less than 0.2 g. 10a
- the maximum volume of the cutting strand segment 10a is less than 5 mm 3 .
- the additional cutting elements 68a, 70a each have a cutting edge 72a, 74a which, together with side surfaces of the additional cutting elements 68a, 70a, enclose an angle deviating from 90 °.
- the cutting edge 22a of the cutting element 16a, the cutting edge 32a of the further cutting element 26a, and the cutting edges 72a, 74a of the additional cutting elements 68a, 70a may include or divergent angles 24a, 34a, 38a, 66a relative to the respective side surface 18a, 20a, 28a, 30a two each may include identical angles with respect to an angular dimension.
- the cutter support element 36a has at least one segment guide element 76a, which is intended to prevent a movement of the
- Cutting edge member 36a viewed in a arranged in the guide unit 40a state in a direction away from the guide unit 40a direction, at least along the at least substantially parallel to the cutting plane extending direction.
- the segment guide element 76a is formed by a transverse extension which extends at least substantially perpendicular to the cutting plane.
- the segment guide member 76a defines a longitudinal groove. The segment guide element 76a is intended to limit movement to those on the
- the segment counter guide elements are formed corresponding to the segment guide element 76a.
- the cutter support element 36a has a pressure force transfer surface 78a.
- the pressure force transmission surface 78a is provided to support pressure forces acting on the cutting strand 12a during machining of a workpiece (not shown here in detail) by means of cooperation with a pressure force absorption region (not shown here in detail) of the guide unit 40a.
- the pressure force receiving area of the guide unit 40a is here, considered along an at least substantially perpendicular to
- the cutter support member 36a further includes a drive surface 80a which is arranged to cooperate with a drive of the cutting strand 12a with drive surfaces of the torque transmitting element 54a.
- the drive surfaces of the torque transmission element 54a are formed here as tooth flanks.
- the drive surface 80a of the cutter support member 36a is formed in correspondence with the drive surfaces of the torque transmitting member 54a.
- the cutting strand 12a has at least one connecting element 82a, which is formed integrally with the cutter carrier element 36a.
- the connecting element 82a is bolt-shaped and extends at least substantially perpendicular to the cutting plane.
- the connecting element 82a is provided to realize a positive connection between the cutter support element 36a and the further cutter support element by means of cooperation with a connecting recess of another cutter support element (not shown in detail here) of another cutting strand segment of the cutting strand 12a.
- the cutter support element 36a likewise comprises a connecting recess 84a in which, to form the cutting strand 12a, a further connecting element (not shown here in detail) of the cutting strand 12a can be arranged.
- each cutter support element of the cutting strand 12a comprises at least one connecting element and at least one connecting recess.
- Cutting carrier elements of the cutting strand 12a by means of an interaction of the connecting elements and the connecting recesses mounted relative to each other pivotally.
- the cutter support element 36a has at least one cross-securing element 86a, which is provided to secure the cutter carrier element 36a in a mounted state as far as possible against a transverse movement relative to the further cutter carrier element of the cutting strand 12a.
- the cross-securing element 86a is arranged on the connecting element 82a.
- the cross-securing element 86a on another the expert appears to be useful range of Cutting support member 36a is arranged, such as in a coupling region in which the connecting element 82a is arranged, and in a coupling of the cutter support member 36a with another
- Cutting carrier element at least partially touched.
- FIGS. 5 and 6 show alternative embodiments. Substantially identical components, features and functions are basically numbered by the same reference numerals. To distinguish the exemplary embodiments, the letters a to c are added to the reference numbers of the exemplary embodiments. The following description is essentially limited to the differences from the first exemplary embodiment described in FIGS. 1 to 4, reference being made to the description of the first exemplary embodiment in FIGS. 1 to 4 with regard to components, features and functions remaining the same.
- FIG. 5 shows a detailed view of an alternative cutting-edge segment 10b of a cutting strand 12b of a power-tool parting device (not shown here in detail).
- the cutting strand segment 10b comprises at least one cutting element 16b which has at least one cutting edge 22b running at least substantially transversely to a side surface 20b of the cutting element 16b.
- the cutting edge 22b together with the side surface 20b of the cutting element 16b, subtends an angle other than 90 °.
- the cutting strand segment 10b comprises at least one further cutting element 26b, which at least one at least substantially transversely to a side surface
- 30b of the further cutting element 26b has extending cutting edge 32b, which includes a deviating from 90 ° angle together with the side surface 30b of the further cutting element 26b.
- cutting edge 22b of the cutting element 16b and the cutting edge 32b of the further cutting element 26b reference may be made to that described in FIGS.
- the cutting strand segment 10b comprises at least one
- Cutting support member 36b which is integrally formed with the cutting element 16b and the other cutting element 26b.
- the cutter carrier element 36b comprises at least one connecting element 82b for forming the cutting strand 12b.
- the connecting element 82b is integral with the
- the connecting element 82b is formed as a longitudinal extension of the cutter carrier element 36b.
- the longitudinal extension is hook-shaped.
- the longitudinal extension deviates from a rod-shaped extension, to which a circular positive-locking element is formed and / or deviating from a semicircular extension.
- the connecting element 82b designed as a longitudinal extension has a transverse securing region 88b on one side.
- the transverse protection region 88b is provided to provide, by means of an interaction with at least one transverse securing element, one with the
- Cutting edge support member 36b further cutting edge support member (not shown here) another cutting strand segment of the
- the transverse securing portion 88b is formed as a rib.
- the transverse securing region 88b has another configuration that appears appropriate to a person skilled in the art, such as a configuration as a groove, etc.
- the transverse securing region 88b is arranged on a side of the connecting element 82b facing the cutting carrier element 36b in one piece , Furthermore, the cutter support element 36b has two transverse securing elements
- transverse securing elements 86b, 90b which are intended to cooperate in a coupled state of the cutter support member 36b with the other cutter support member with a transverse securing portion of the other cutter support member.
- the transverse securing elements 86b, 90b are in each case bounded by a connecting recess 84b of the cutter carrier element 36b
- FIG. 7 shows a further, alternative cutting strand segment 10c of a
- the cutting strand segment 10c comprises at least one cutting element 16c, which has at least one cutting edge 22c extending at least substantially transversely to a side surface 20c of the cutting element 16c.
- Cutting edge 22c includes together with the side surface 20c of the cutting element 16c a deviating from 90 ° angle. Furthermore, the cutting strand segment 10c comprises at least one further cutting element 26c, which has at least one cutting edge 32c running at least substantially transversely to one side surface 30c of the further cutting element 26c, which forms an angle deviating from 90 ° together with the side surface 30c of the further cutting element 26c , With respect to an arrangement of the cutting edge 22c of the cutting element 16c and the cutting edge 32c of the further cutting element 26c, reference may be made to the embodiment described in FIGS. 1 to 4 and to the illustration in FIG.
- the cutting-strand segment 10c comprises a cutting-carrier element 36c, which for forming the cutting strand 12c is a bolt-shaped connecting element 82c and a connecting recess 84c into which a bolt-shaped connecting element (not shown here in detail) of another
- Cutting carrier element (not shown here in detail) of another cutting strand segment of the cutting strand 12c can be introduced.
- the cutter support element 36c is decoupled from the connecting element 82c and instead has two connecting recesses 84c into which a bolt-shaped connecting element can be inserted for forming the cutting strand 12c.
- Cutting edge support element 36c at least one segment guide element 76c. Furthermore, the cutter support element 36c comprises a triangular drive region 92c. In this case, the segment guide element 76c is arranged in the drive region 92c. Further, a drive surface 80c of the cutter support member
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Sawing (AREA)
Abstract
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201210206769 DE102012206769A1 (de) | 2012-04-25 | 2012-04-25 | Schneidstrangsegment |
PCT/EP2013/053864 WO2013159961A1 (fr) | 2012-04-25 | 2013-02-27 | Segment de brin de coupe |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2841241A1 true EP2841241A1 (fr) | 2015-03-04 |
Family
ID=47754515
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13706526.4A Withdrawn EP2841241A1 (fr) | 2012-04-25 | 2013-02-27 | Segment de brin de coupe |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2841241A1 (fr) |
DE (1) | DE102012206769A1 (fr) |
WO (1) | WO2013159961A1 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012219855A1 (de) | 2012-03-02 | 2013-09-05 | Robert Bosch Gmbh | Verfahren zur Herstellung von zumindest einem Schneidstrangsegment eines Schneidstrangs |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US824009A (en) * | 1905-04-29 | 1906-06-19 | Simon Johnstone Gray | Sawing-machine. |
US827009A (en) * | 1905-04-29 | 1906-07-24 | Simon J Gray | Saw. |
US6681674B2 (en) * | 2001-02-23 | 2004-01-27 | William Hakansson | Band saw blade |
-
2012
- 2012-04-25 DE DE201210206769 patent/DE102012206769A1/de not_active Withdrawn
-
2013
- 2013-02-27 WO PCT/EP2013/053864 patent/WO2013159961A1/fr active Application Filing
- 2013-02-27 EP EP13706526.4A patent/EP2841241A1/fr not_active Withdrawn
Non-Patent Citations (2)
Title |
---|
None * |
See also references of WO2013159961A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE102012206769A1 (de) | 2013-10-31 |
WO2013159961A1 (fr) | 2013-10-31 |
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