EP2148768B1 - Schneidwerkzeug mit einem tragkörper - Google Patents

Schneidwerkzeug mit einem tragkörper Download PDF

Info

Publication number
EP2148768B1
EP2148768B1 EP08758066A EP08758066A EP2148768B1 EP 2148768 B1 EP2148768 B1 EP 2148768B1 EP 08758066 A EP08758066 A EP 08758066A EP 08758066 A EP08758066 A EP 08758066A EP 2148768 B1 EP2148768 B1 EP 2148768B1
Authority
EP
European Patent Office
Prior art keywords
cutting
cutting element
clamping jaw
cutting tool
recess
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.)
Not-in-force
Application number
EP08758066A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2148768A1 (de
Inventor
Richard Patsch
Zeliko Pekec
Franz Standler
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.)
Leitz GmbH and Co KG
Original Assignee
Leitz GmbH and Co KG
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 Leitz GmbH and Co KG filed Critical Leitz GmbH and Co KG
Priority to SI200830721T priority Critical patent/SI2148768T1/sl
Priority to PL08758066T priority patent/PL2148768T3/pl
Publication of EP2148768A1 publication Critical patent/EP2148768A1/de
Application granted granted Critical
Publication of EP2148768B1 publication Critical patent/EP2148768B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
    • B27G13/00—Cutter blocks; Other rotary cutting tools
    • B27G13/08—Cutter blocks; Other rotary cutting tools in the shape of disc-like members; Wood-milling cutters
    • B27G13/10—Securing the cutters, e.g. by clamping collars
    • 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
    • Y10T407/00—Cutters, for shaping
    • Y10T407/19—Rotary cutting tool
    • Y10T407/1906—Rotary cutting tool including holder [i.e., head] having seat for inserted tool
    • Y10T407/1932—Rotary cutting tool including holder [i.e., head] having seat for inserted tool with means to fasten tool seat to holder
    • 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
    • Y10T407/00—Cutters, for shaping
    • Y10T407/19—Rotary cutting tool
    • Y10T407/1906—Rotary cutting tool including holder [i.e., head] having seat for inserted tool
    • Y10T407/1934—Rotary cutting tool including holder [i.e., head] having seat for inserted tool with separate means to fasten tool to holder

Definitions

  • the invention relates to a cutting tool with a support body according to the preamble of claim 1.
  • cutting tools are known in which by means of screwing a cutting element is mounted in a receptacle of a supporting body. It is important that the contact surfaces of the clamping jaws, cutting elements and the seat of the cutting elements are flat to ensure a uniform contact pressure. In such a cutting tool problems occur during regrinding, since reground cutting elements are inclined with respect to the seat, so that the contact pressure is reduced, especially in the region of the cutting edge of the cutting element.
  • the cutting edge then vibrates during the machining process, resulting in an unclean cut; In extreme cases, chips can penetrate between the seat and the cutting element. The same problem occurs when due to manufacturing tolerances no flat contact surfaces can be provided.
  • the generic EP 1 574 308 A1 relates to a milling tool which is held in a slot-like receptacle in a base body.
  • a jaw clamps a cutting element in the body firmly.
  • the jaw is clamped by a screw and has a contact surface which is inclined slightly in the direction of the cutting element. An angular range of approximately 1 ° is indicated.
  • the DE 11 95 934 B1 relates to a knife shaft for woodworking machines with wedge-shaped pressure bars. Clamping elements are movably mounted in a shaft body and press knife against the shaft body. The clamping elements are pressed by elastic means against the blades.
  • the DE 92 10 363 U1 describes a cutter head with a base body which is provided with at least two evenly distributed over its circumference arranged recesses, in which knife by means of a clamping device, which has at least one clamping element and at least one cooperating with this and the body clamping screw, are set interchangeable.
  • the BE 401 214 A1 relates to a knife shaft with a support body, in which recesses are arranged for receiving knives in the longitudinal extent of the blade shaft.
  • a groove extending essentially parallel to the shaft axis is milled in the shaft body so that a part of the receptacle is formed only on a narrow web of the blade shaft.
  • this surface is pressed against the cutting edge and clamped in the knife roller.
  • the EP 1 568 453 A1 describes a Ringzerspaner with knife elements, which are held by clamping retaining rails on the ring body.
  • the US 4,193,719 A describes a cutting tool with resharpenable cutting elements.
  • the object of the invention consists in an improvement of the cutting tool with respect to the Thomasverhaltans and the Crulchkeit.
  • the cutting element in the region of the cutting edge is also firmly clamped in his seat when it comes due to a reworking of the cutting element or due to manufacturing tolerances to deviations in the flatness of the contact surfaces of the cutting element. It also compensates for inaccuracies that can occur when the cutting element is inserted obliquely or the support body already has deformations as a result of prolonged use.
  • the vibration behavior of the cutting element is positively influenced, so that a clean cut is made possible. Due to the possibility of re-sharpening of the cutting element, the tool costs are reduced, so that overall the efficiency of the cutting tool is increased,
  • the invention provides that the resilient configuration of the clamping jaw is achieved by a weakening of the clamping jaw on the side facing away from the cutting element.
  • the resilient configuration can also be adjusted by a suitable material selection or suitable component dimensioning.
  • a recess designed as a groove is formed in the clamping jaw on the side facing away from the cutting element, for example by a separation method or by a appropriate design during the original molding process.
  • multiple weakenings or recesses may be provided in the jaw. Due to the weakening of the clamping jaw on the side facing away from the cutting element, an "elastic joint" is created, whereby the clamping jaws resiliently bears against the cutting element and presses this into its seat in the receptacle of the supporting body.
  • the weakenings or recesses extend over the entire axial width of the jaws or.
  • a plurality of weakenings or recesses are provided, these are advantageously arranged substantially parallel to one another, however, the recesses or weakenings can also be adapted differently from a parallel orientation to adapt to certain cutting edge geometries or applications that cause a certain wear behavior.
  • a spring element is arranged in the weakening or recess, which loads the clamping jaws so that a bias of the clamping jaw takes place in the direction of the cutting edge of the cutting element.
  • the spring element is preferably made of an elastic material or a compression spring and causes an expansion of the weakening or the recess, so that an increase in the spring force in the upper and lower end region of the clamping jaw occurs.
  • An inexpensive and effective embodiment of the recess or the weakening is a groove or a plurality of grooves which are incorporated in the clamping jaws.
  • This groove can be adapted in shape and size to the particular application and easily incorporated by grinding or milling in the jaws.
  • a corresponding configuration of the groove facilitates the arrangement of the spring element in the form of an elastic plastic or a compression spring, as is ensured by a corresponding cross-sectional design a secure attachment of the spring element to the clamping jaws in the groove.
  • a further embodiment provides that the clamping jaws is designed bent in the direction of the cutting element and consists of a metal or plastic piece. This bending acts as a kind of bias and supports the resilient effect on the cutting element, whereby an increase in the contact pressure is effected in particular in the region of the cutting edge of the cutting element.
  • a screw connection of the clamping jaw is provided with the support body.
  • adjustability of the contact pressure is made possible in which the tightening torque of the screw can be varied and adjusted.
  • different jaws can be used depending on the purpose, which is easy to implement by a detachable connection by means of screwing.
  • a development provides that on the clamping jaw in the direction of the cutting element, a projection is arranged, which engages in a corresponding recess of the cutting element.
  • the projection may also be arranged on the cutting element and engage in a recess of the clamping jaw.
  • the projection and the recess are for axial and radial securing of the cutting element trained and support the definition of the cutting element in the seat of the support body.
  • an axial securing element for the cutting element is provided on the supporting body in order to prevent a lateral displacement of the cutting element.
  • a resilient design of the clamping jaw in the direction of the cutting element is provided that a resilient formation of the clamping jaw takes place in the direction of the cutting edge in order to obtain an optimal clamping of the cutting element and a precise guidance of the cutting edge.
  • a development of the invention provides that in the cutting element an indicator recess, in particular an indicator groove is ground, indicating the end of a NachMrfzone.
  • This makes it possible to equip the cutting tool with a resharpenable cutting element.
  • the goal is to be able to transfer a high clamping force to the cutting element despite decreasing material thickness with repeated resharpening.
  • an elastic clamping jaw only a precisely defined variation of the material thickness of the cutting element is permitted, since a sufficiently secure clamping of the cutting element and a sufficient precision in the adjustment of the cutting tool must be ensured.
  • the permissible tolerances for the material thickness of the cutting element and thus for the depth of the Indikatorausappelung are extremely low, so that due to the low tolerances Grinding a grinding in a Indikatorausappelung, in particular an indicator groove, is an advantage.
  • the cutting tool is designed as a knife shaft or a knife head of a woodworking machine, however, it is possible to use this cutting tool for metal, plastic or stone processing.
  • the FIG. 1 shows a cutting tool with a support body 1 and a receptacle incorporated therein 2.
  • the receptacle 2 may either be incorporated during the primary molding process of the support body 1 in the mold or subsequently by milling, grinding or another Machining methods are incorporated.
  • the receptacle 2 serves as a seat for a cutting element 4, the cutting edge 3 extends radially outwardly from the support body 1 in the illustrated embodiment.
  • the cutting edge 3, z. B. at a vortex tool extend radially inwards.
  • the cutting element 4 is inserted into its seat in the receptacle 2, wherein with respect to the seat, a clamping jaws 5 is arranged, which clamps the cutting element 4.
  • the clamping takes place by means of a screw 9 which engages through a through hole in the support body 1 in an incorporated into the clamping jaws 5 thread and clamps the cutting element 4 after application of a specified torque.
  • a groove 6 is incorporated through which a weakening occurs due to the missing material, resulting in a joint effect in the region of the groove 6.
  • a compression spring 8 is inserted, which presses apart the parts of the clamping jaw 5 on both sides of the groove 6 and so causes a resilient contact of the clamping jaw 5 on the cutting element 4, in particular in the region of the cutting edge 3.
  • the compression spring 8 is shown schematically in the embodiment and stands for all compression spring elements that can widen the groove 6.
  • the clamping jaw 5 is biased and curved so that the radially outwardly or inwardly facing ends of the clamping jaw 5 are resiliently biased.
  • a projection 10 is formed, which engages in a corresponding groove 11 in the cutting element 4 and in addition to the force applied by the screw 9 clamping force a positive locking against a radial displacement of the cutting element 4 due forms centrifugal forces.
  • FIG. 2 can be seen in an enlarged detail that the formed as a bolt axial securing element 12 is passed through a hole into the seat of the cutting element 4 in the receptacle 2.
  • the clamping jaws 5 forms the other contact surface for the axial securing element 12, so that this is fixed in the assembled state.
  • a recess 16 is incorporated, which is formed corresponding to the axial securing element 12 and in the assembled state, the axial securing element 12 comprises. In this way, a displacement of the cutting element 4 in the axial direction is prevented.
  • the formation of the groove 6 in the clamping jaws 5 and the pressure spring 8 arranged within the groove 6 becomes clear.
  • the groove 6 extends over the entire axial width of the clamping jaw 5, so that over the entire width of the clamping jaw 5, a spring action in the direction of the cutting edge 3 of the cutting element 4 can be effected.
  • the recess 11 within the cutting element 4 engages in the mounted state in the projection 10 of the clamping jaw 5 and prevents radial displacement of the cutting element 4 during operation of the cutting tool.
  • FIG. 3 the arrangement of the cutting element 4, the clamping jaw 5 and the support body 1 is clear, as well as the effect of arranged in the groove 6 compression spring 8.
  • the compression spring 8 causes a widening of the groove 6 at the cutting element 4 facing away from the edges, as shown by the arrows D is shown.
  • This pressure are radially seen the outer and inner ends of the clamping jaw 5 bent or biased in the direction of the cutting element 4, as indicated by the arrows B. This bias can also be introduced in the course of the manufacturing process.
  • the receptacle 2 is formed at the radially inner end in such a way that a correspondingly shaped end of the clamping jaw 5 is easily pivoted, so that a rotation about this inner point is effected by the radially further outwardly disposed screw 9 and by means of the screw 9 applied tensile force , This way is a safe Clamping of the cutting element 4 ensured by the clamping jaws 5.
  • the compression spring 8 presses the outer end of the clamping jaw 5 upwards and causes a rotation or bending of the upper portion of the clamping jaw 5 to the region of material weakening through the groove. 6
  • FIGS. 5A to 10B show various representations of clamping jaws 5, wherein the marked by the reference numeral A in each case a sectional view and the figures designated by the reference numeral 8 are a sloping plan view.
  • FIG. 5 is shown with a radially outwardly enlarged bevel 15 of the clamping jaw 5, with the corresponding after the installation of the clamping jaw 5 in the cutting tool a corresponding contact force on the cutting element 4 in the region of the cutting edge 3 is applied.
  • the spring action of the clamping jaw 5 is effected by the reduction of the material in the radially outer end of the clamping jaw 5, so that a whip or leaf spring effect arises, through which an increase in the contact pressure force is achieved.
  • the clamping jaw 5 can also be curved, in order in particular to increase the contact pressure on the inner and outer regions of the cutting element 4.
  • the object of the FIG. 5 is not an embodiment of the invention.
  • grooves 6 or a groove 6 are milled into the clamping jaw 5 over its entire axial width, in which an elastic spring element, for example an elastic plastic 7 is incorporated in order to achieve a corresponding spring effect.
  • an elastic spring element for example an elastic plastic 7
  • FIG. 6 is the parallel arrangement of the grooves 6 to see, depending on the external conditions and the intended use, a correspondingly different orientation of the grooves 6 can be provided.
  • FIGS. 8 and 9 show a clamping jaws 5 with grooves 6 and a groove 6, wherein in the groove 6 in the grooves 6 no spring element is inserted.
  • the joint effect or the spring action and a corresponding bias of the clamping jaw 5 can be reinforced, for example, via a corresponding surface treatment and voltage conditions generated thereby within the clamping jaw 5.
  • FIG. 10 shows in detail a jaw 5 according to the FIGS. 1 to 4 with a arranged within the groove 6, shown schematically compression spring 8, whose operation in the FIGS. 1 to 4 is explained.
  • FIG. 11 In plan view, a foot part of a cutting element 4 is shown with a recess 16 for receiving the axial securing element 12 without the cutting edge 3.
  • a Indikatorausnaturalung 13 is ground in the form of a groove over the entire width of the cutting element 4 to indicate how far the cutting element 4 can be reground before the minimum material thickness is reached. Reprecipitation too often reduces the material thickness of the cutting element 4, which leads to a diminishing strength and problems with an exact and firm clamping in the cutting tool or support body 1 and impairs secure clamping by the clamping jaw 5.
  • FIG. 11a the cutting element 4 is shown with its original material thickness, in the FIG. 11b in an already maximum reground state, which can be seen at the different depth of the recess 11.
  • the depth of the indicator groove 13 is the measure for the regrinding zone 14, within which regrinding can be carried out without danger.
  • the end of the regrinding zone has been reached.
  • the safe use of the knives is guaranteed as long as a difference in thickness of the knives in the area of the clamping surface and the indicator groove 13 can be seen.
  • the maximum re-sharpening zone is no longer detectable. These knives or cutting elements 4 could for the Clamping system have too small a knife thickness and may therefore no longer be used.
  • the grinding in of the indicator groove 13 has the great advantage that an extraordinarily precise introduction of the recess or the groove 13 can take place.
  • the recess may also have a different shape. If similarly precise methods can be provided, the indicator groove 13 can also be introduced into the cutting element 4 in a different manner.
  • FIG. 12 a clamping jaws 5 is shown with a running over the entire width of the clamping jaws 5 groove 6, wherein the clamping jaws 5 at the same time has a chamfer 15, which leads to an increased elasticity and spring action.
  • the groove 6 is formed with a rounded cross section, which opens in the direction of the clamping jaw surface and thus has a parabolic shape.
  • FIG. 13 shows a similar construction of the jaw 5 as the FIG. 12 , but with a different contour of the groove 6, which is formed as a pitch circle, with a circumference of more than 180 °. As a result, an undercut is formed within the groove 6.
  • FIG. 14 is a variant of FIG. 9 shown, in which the radially outer region of the clamping jaw 5 is provided with a weakening by a part of the material of the clamping jaw 5 has been removed. Also, the contour of the recess or groove 6 differs from that of the FIG. 9 , The groove shape 6 corresponds to the groove shape of FIG. 12 ,
  • FIG. 15 is a jaw 5 without a spring element 8 according to the FIG. 10 shown.
  • the recess 6 is not rounded, but executed at an angle. Instead of a rounded or formed by two bevels groove 6, this may also be polygonal. All jaws 5 point a threaded bore for receiving the bolt or the screw 9.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Cutting Tools, Boring Holders, And Turrets (AREA)
  • Milling Processes (AREA)
EP08758066A 2007-05-09 2008-05-09 Schneidwerkzeug mit einem tragkörper Not-in-force EP2148768B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SI200830721T SI2148768T1 (sl) 2007-05-09 2008-05-09 Rezalno orodje z nosilnim telesom
PL08758066T PL2148768T3 (pl) 2007-05-09 2008-05-09 Narzędzie skrawające z elementem nośnym

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007022242A DE102007022242A1 (de) 2007-05-09 2007-05-09 Schneidwerkzeug mit einem Tragkörper
PCT/DE2008/000811 WO2008138326A1 (de) 2007-05-09 2008-05-09 Schneidwerkzeug mit einem tragkörper

Publications (2)

Publication Number Publication Date
EP2148768A1 EP2148768A1 (de) 2010-02-03
EP2148768B1 true EP2148768B1 (de) 2012-06-27

Family

ID=39672942

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08758066A Not-in-force EP2148768B1 (de) 2007-05-09 2008-05-09 Schneidwerkzeug mit einem tragkörper

Country Status (10)

Country Link
US (1) US8739844B2 (sl)
EP (1) EP2148768B1 (sl)
JP (1) JP5384475B2 (sl)
CN (1) CN101687337B (sl)
DE (1) DE102007022242A1 (sl)
DK (1) DK2148768T3 (sl)
ES (1) ES2389577T3 (sl)
PL (1) PL2148768T3 (sl)
SI (1) SI2148768T1 (sl)
WO (1) WO2008138326A1 (sl)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014015199A1 (de) 2014-10-10 2016-04-14 Leitz Gmbh & Co. Kg Messerkopf zur spanenden Bearbeitung von Werkstoffen und Messer hierfür

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202009003795U1 (de) 2009-03-25 2009-06-04 Trumpf Werkzeugmaschinen Gmbh + Co. Kg Werkzeugkomponente und Werkzeugmaschine
KR101075292B1 (ko) * 2010-01-14 2011-10-20 대구텍 유한회사 절삭 공구
CH709488A1 (de) 2014-04-14 2015-10-15 Oertli Werkzeuge Ag Werkzeugkopf und Verfahren zum Einsetzen und Spannen einer Schneidplatte, sowie Schneidplatte.
DE202014003962U1 (de) * 2014-05-13 2014-06-11 Robert Bosch Gmbh Werkzeug
CN104057501B (zh) * 2014-07-02 2016-01-20 浙江浪潮精密机械有限公司 一种加工橱柜门框的套装铣刀的制造方法
US10051798B2 (en) * 2014-11-12 2018-08-21 Leonardi Manufacturing Co., Inc. Various improvements to stump cutting tool discs and elements thereof
JP6069566B1 (ja) * 2016-06-27 2017-02-01 シモダフランジ株式会社 ネジ加工用工具およびネジ加工方法
CH713020A1 (de) * 2016-10-10 2018-04-13 Oertli Werkzeuge Ag Messerkopf und Messerkopfsystem, insbesondere für eine Holzbearbeitungsmaschine.
IT201800008191A1 (it) * 2018-08-27 2020-02-27 Twt Srl Dispositivo di fissaggio degli inserti taglienti di frese da taglio

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE401214A (sl) *
US4193719A (en) * 1978-04-17 1980-03-18 Niagara Cutter Inc. Cutting tool
EP1568453A1 (en) * 2004-02-26 2005-08-31 Key Knife, Inc. Ring slicer with easily removable knife and knife assembly

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE489126A (sl) * 1948-10-02
DE1195934B (de) 1957-10-30 1965-07-01 Paul Kirsten Dr Ing Messerwelle fuer Holzbearbeitungsmaschinen, insbesondere Zerspanungsmaschinen mit keil-artigen Druckleisten
DE2405503C3 (de) * 1974-02-05 1979-02-01 Oppold, Ludwin, 7082 Oberkochen Messerkopf zum Bearbeiten von Holz oder Kunststoff
DE2829732A1 (de) * 1978-07-06 1980-01-17 Scheer & Cie C F Schneidwerkzeug
JPH0470404A (ja) 1990-07-11 1992-03-05 Nikko Co Ltd アスファルト合材の製造方法及び製造装置
JP2522573Y2 (ja) * 1990-10-25 1997-01-16 京セラ株式会社 チップクランプ装置
US5224408A (en) * 1990-12-13 1993-07-06 Tamarack Products, Inc. Apparatus for cutting
DE9210363U1 (de) * 1992-08-03 1993-01-21 Gebr. Leitz Gmbh & Co, 7082 Oberkochen Messerkopf, insbesondere Profilmesserkopf
CN2268607Y (zh) * 1996-11-06 1997-11-26 王广德 木工安全刨铣头
US5979522A (en) * 1998-11-18 1999-11-09 Key Knife, Inc. Knife holder for a chipper disc
US6327951B1 (en) * 2000-09-01 2001-12-11 Tigra Hartstoff Gmbh Mounting arrangement for hard metal cutting blades in cutting heads
US6811362B2 (en) * 2000-10-25 2004-11-02 E. W. Tooling, Inc. Constant dimension insert cutting tool with regrindable profiled inserts
US6386250B1 (en) * 2000-10-30 2002-05-14 Hsing-Chao Liu Helical knife assembly
EP1574308A3 (en) * 2004-03-09 2005-11-16 STARK S.p.A. Milling tool
US20070034291A1 (en) * 2005-08-15 2007-02-15 Moran Michael R Profile cutting tool and method of sharpening
US7140408B1 (en) * 2006-02-03 2006-11-28 Key Knife, Inc. Knife assembly and chipping knife therefor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE401214A (sl) *
US4193719A (en) * 1978-04-17 1980-03-18 Niagara Cutter Inc. Cutting tool
EP1568453A1 (en) * 2004-02-26 2005-08-31 Key Knife, Inc. Ring slicer with easily removable knife and knife assembly

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014015199A1 (de) 2014-10-10 2016-04-14 Leitz Gmbh & Co. Kg Messerkopf zur spanenden Bearbeitung von Werkstoffen und Messer hierfür

Also Published As

Publication number Publication date
CN101687337B (zh) 2012-08-29
SI2148768T1 (sl) 2012-09-28
US20100319810A1 (en) 2010-12-23
US8739844B2 (en) 2014-06-03
WO2008138326A1 (de) 2008-11-20
DE102007022242A1 (de) 2008-11-20
EP2148768A1 (de) 2010-02-03
ES2389577T3 (es) 2012-10-29
CN101687337A (zh) 2010-03-31
JP5384475B2 (ja) 2014-01-08
PL2148768T3 (pl) 2012-11-30
JP2010525957A (ja) 2010-07-29
DK2148768T3 (da) 2012-09-24

Similar Documents

Publication Publication Date Title
EP2148768B1 (de) Schneidwerkzeug mit einem tragkörper
DE69406433T2 (de) Schneidwerkzeug mit einem werkzeughalter mit einem ersetzbaren einsatz
EP3204202B1 (de) Messerkopf zur spanenden bearbeitung von werkstoffen und messer hierfür
EP3305489B1 (de) Messerkopf
DE2110078A1 (de) Werkzeug zur spanabhebenden Bear bettung, insbesondere Frasmesserkopf
EP0964764A2 (de) Reib- und senk-schneidwerkzeug
DE19949743C1 (de) Zerspanungs-Werkzeug für die Hochgeschwindigkeitsbearbeitung
EP2370226B1 (de) Werkzeug mit einem lösbar gespannten schneidkörper
DE102011012663B4 (de) Messerhalterung zur Befestigung eines Hackmessers
WO2004016379A1 (de) Schneidwerkzeug für die spanabhebende bearbeitung
DE102021116588A1 (de) Einrichtung zum Schneiden blattförmigen Materials
DE3239152A1 (de) Messerwalze fuer eine motorbetriebene handhobelmaschine
DE2506176A1 (de) Fraesvorrichtung
EP1715975B1 (de) Hochgeschwindigkeitsfräser
DE102015005787B4 (de) Zerkleinerungseinheit für eine Zerkleinerungsvorrichtung zum Zerkleinern von Aufgabegut, insbesondere Messerkorb
DE3316053C2 (sl)
DE202005010337U1 (de) Messerträger für Zerkleinerungsvorrichtungen
EP3137248B1 (de) Zerspanungswerkzeug mit feststehenden und federnd gelagerten führungsleisten
EP0491237B1 (de) Messerkopf
EP3170595B1 (de) Werkzeughalter
EP0850715A1 (de) Wendeschneidwerkzeug
EP2799173B1 (de) Messerkopf und schneidplatte
EP3736083B1 (de) Verfahren zum schärfen eines in einen messerkopf einsetzbaren messers und messerkopf mit geschärftem messer
DE2633479A1 (de) Stammblatt fuer ein diamantkreissaegeblatt
DE69415714T2 (de) Rotierendes Metallschneidwerkzeug

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20091111

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA MK RS

17Q First examination report despatched

Effective date: 20100714

DAX Request for extension of the european patent (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 563901

Country of ref document: AT

Kind code of ref document: T

Effective date: 20120715

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: BRAUNPAT BRAUN EDER AG

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502008007599

Country of ref document: DE

Effective date: 20120823

REG Reference to a national code

Ref country code: NL

Ref legal event code: T3

REG Reference to a national code

Ref country code: RO

Ref legal event code: EPE

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2389577

Country of ref document: ES

Kind code of ref document: T3

Effective date: 20121029

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120927

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120627

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120928

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120627

REG Reference to a national code

Ref country code: PL

Ref legal event code: T3

REG Reference to a national code

Ref country code: SK

Ref legal event code: T3

Ref document number: E 12605

Country of ref document: SK

REG Reference to a national code

Ref country code: EE

Ref legal event code: FG4A

Ref document number: E007111

Country of ref document: EE

Effective date: 20120921

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20121027

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120627

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20121029

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20130328

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502008007599

Country of ref document: DE

Effective date: 20130328

REG Reference to a national code

Ref country code: HU

Ref legal event code: AG4A

Ref document number: E015983

Country of ref document: HU

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120927

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120627

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130509

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120627

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 502008007599

Country of ref document: DE

Representative=s name: GRAMM, LINS & PARTNER PATENT- UND RECHTSANWAEL, DE

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: LU

Payment date: 20160524

Year of fee payment: 9

Ref country code: NL

Payment date: 20160523

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20160523

Year of fee payment: 9

Ref country code: GB

Payment date: 20160523

Year of fee payment: 9

Ref country code: CZ

Payment date: 20160428

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SK

Payment date: 20160429

Year of fee payment: 9

Ref country code: BE

Payment date: 20160523

Year of fee payment: 9

Ref country code: SI

Payment date: 20160429

Year of fee payment: 9

Ref country code: DK

Payment date: 20160523

Year of fee payment: 9

Ref country code: RO

Payment date: 20160428

Year of fee payment: 9

Ref country code: SE

Payment date: 20160523

Year of fee payment: 9

Ref country code: FR

Payment date: 20160523

Year of fee payment: 9

Ref country code: EE

Payment date: 20160523

Year of fee payment: 9

Ref country code: TR

Payment date: 20160502

Year of fee payment: 9

Ref country code: HU

Payment date: 20160427

Year of fee payment: 9

Ref country code: LT

Payment date: 20160427

Year of fee payment: 9

Ref country code: LV

Payment date: 20160523

Year of fee payment: 9

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170531

REG Reference to a national code

Ref country code: LT

Ref legal event code: MM4D

Effective date: 20170509

REG Reference to a national code

Ref country code: EE

Ref legal event code: MM4A

Ref document number: E007111

Country of ref document: EE

Effective date: 20170531

REG Reference to a national code

Ref country code: SE

Ref legal event code: EUG

Ref country code: DK

Ref legal event code: EBP

Effective date: 20170531

REG Reference to a national code

Ref country code: NL

Ref legal event code: MM

Effective date: 20170601

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20170509

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170510

Ref country code: LT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170509

Ref country code: RO

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170509

Ref country code: EE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170531

Ref country code: CZ

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170509

Ref country code: SK

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170509

REG Reference to a national code

Ref country code: SK

Ref legal event code: MM4A

Ref document number: E 12605

Country of ref document: SK

Effective date: 20170509

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170510

Ref country code: LV

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170509

Ref country code: SI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170510

REG Reference to a national code

Ref country code: SI

Ref legal event code: KO00

Effective date: 20180111

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20180131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170601

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170509

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20170531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170531

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170509

REG Reference to a national code

Ref country code: CH

Ref legal event code: PCAR

Free format text: NEW ADDRESS: HOLEESTRASSE 87, 4054 BASEL (CH)

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170531

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20180706

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170510

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: PL

Payment date: 20190429

Year of fee payment: 12

Ref country code: IT

Payment date: 20190521

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20190523

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20190528

Year of fee payment: 12

Ref country code: AT

Payment date: 20190517

Year of fee payment: 12

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 502008007599

Country of ref document: DE

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 563901

Country of ref document: AT

Kind code of ref document: T

Effective date: 20200509

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200509

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200531

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20201201

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200509

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170509

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200509