Wedge Clamp Element Patents (Class 407/41)
  • Patent number: 11110527
    Abstract: A cutting insert 10 comprises a peripheral side surface 16 comprising a plurality of peripheral side surface parts 16A-16H formed so as to be in rotational symmetry with respect to a central axis AX. In the cutting insert 10, a second end surface 14 is provided with a plurality of inclined surface parts 13A-13H formed so as to be in rotational symmetry with respect to the central axis AX and to be recessed from a peripheral edge part 14A.
    Type: Grant
    Filed: July 22, 2019
    Date of Patent: September 7, 2021
    Assignee: TUNGALOY CORPORATION
    Inventors: Haruki Kumoi, Ryuichi Saji
  • Patent number: 10549353
    Abstract: An object of the present invention is to provide a cutting tool capable of expanding a range in which adjustment work can be readily performed and reducing manufacturing cost. Provided is a cutting tool including: a cartridge to which a cutting member having a cutting edge is fixed; a body having at least one cartridge mounting part in which the cartridge is installed; and an adjustment plate installed between walls or a bottom surface constituting the cartridge mounting part and the cartridge, wherein the walls or the bottom surface of the cartridge mounting part has a recessed part for housing the adjustment plate.
    Type: Grant
    Filed: April 30, 2018
    Date of Patent: February 4, 2020
    Assignee: TUNGALOY CORPORATION
    Inventors: Ryota Sasaki, Satoru Yoshida, Tomoha Tabe
  • Patent number: 10543544
    Abstract: This disclosure relates to a machine tool comprising a tool holder which rotates relative to a workpiece to be machined and has a tool axis, and a plurality of cutting inserts that are removably attached to the tool holder, the active cutting edges of said cutting inserts having a common cutting circle which is coaxial to the tool axis. According to this disclosure, the tool holder has a cylinder-type insert seat shell for radially positioning the cutting inserts, which rotates about the tool axis. The cutting inserts have at least one contact surface that can be brought into contact with the insert seat shell.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: January 28, 2020
    Assignee: KOMET GROUP GMBH
    Inventors: Cristian Colletta, Wolfgang Bierl, Simone Nägele, Waldemar Dubs, Frederik Peters, Peter Leuze
  • Patent number: 10300490
    Abstract: A rotary mill for grinding recycled glass materials into particles has a housing defining an impact chamber with a rotor in the chamber at the bottom of an inclined guide wall underneath the feed opening. The rotor has a plurality of axially extending, angularly spaced massive impact hammers so that the impact hammers impact and deflect the solid materials onto a plurality of shatter bars located at the peripheral wall. Each of the impact hammers has a leading blade element of a hardened steel which has a front face inclined relative to a bottom portion of the guide surface so that an outer edge of the front face is angularly advanced relative to an inner edge thereof.
    Type: Grant
    Filed: July 29, 2015
    Date of Patent: May 28, 2019
    Assignee: Patent Applied Technology
    Inventor: David Langtry
  • Patent number: 9849523
    Abstract: A rotary cutting tool includes a rotary tool body, a blade clamp, a cutting insert, a clamp fastener, and an insert fastener, wherein the rotary tool body has an insert pocket to define a bottom positioning face, a first lateral positioning face and a second lateral positioning face. The cutting insert is affixed to the blade clamp via the insert fastener. The first lateral positioning face is orientated opposite to a side cutting edge of the cutting insert. The blade clamp is slid into the insert pocket in an axial direction of the rotary tool body, wherein the blade clamp is coupled by the first and second lateral positioning faces in an interference clamping manner and is retained at the rotary tool body by the clamp fastener. The present invention has the advantages of strong radial impact resistance, high positioning accuracy, high safety concern and long service life.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: December 26, 2017
    Assignee: ZHUZHOU CEMENTED CARBIDE CUTTING TOOLS CO., LTD.
    Inventors: Aisheng Jiang, Shequan Wang, Aimin Tang, Min Liu, Lin Chen, Wei Yi
  • Patent number: 9211590
    Abstract: A screw head wedge clamp assembly for a cutting tool includes a clamp screw having a screw head with a frustum-shaped portion, and a screw head wedge clamp having a body and a clamp head extending from the body. The clamp head has a frustum-shaped portion that is received in a mounting screw bore of a cutting insert. The wedge clamp contacts a radiused bottom wall of the clamp bore when the clamp screw is threaded into a threaded bore of an insert pocket, thereby causing the clamp head to exert a downward and rearward force against a mounting screw bore of the cutting insert to securely hold the cutting insert in the insert pocket. The screw head wedge clamp does not contact a top surface of the cutting insert, but only the frustum-shaped portion contacts the mounting screw bore of the cutting insert.
    Type: Grant
    Filed: September 20, 2013
    Date of Patent: December 15, 2015
    Assignee: KENNAMETAL INC.
    Inventors: Lewis Ray Morrison, Ravishankar Iyer
  • Patent number: 8882404
    Abstract: A cutting tool comprising a cutting tool holder and a cutting insert adapted to be mounted thereon. The tool holder comprises an insert seat defined by a base and at least one side wall extending from the base to define an insert seat space adapted to receive therein the insert. The seat comprises a support element extending into the insert seat from the base, and a fastening member engageable with the seat. The fastening member is displaceable with respect thereto between a mounting position adapted to allow the insert to be mounted onto the seat and a securing position adapted for securing the insert within the seat. The insert is formed with a securing cavity and when the insert is mounted onto the tool holder and is in the securing position, a portion of the support element and the fastening member is received within the cavity of the insert.
    Type: Grant
    Filed: February 25, 2010
    Date of Patent: November 11, 2014
    Assignee: No Screw Ltd
    Inventor: Gershon Harif
  • Patent number: 8851807
    Abstract: A cutting tool has a plurality of cutting portions located along a cutter peripheral surface, alternating between cutter side surfaces, with a cutting insert retained in each cutting portion. At least one cutting portion has a main recess, formed opposite of the respective cutting insert. The main recess has a recess arcuate surface and a recess bearing surface. The cutting portion also has a cam member with a cam arcuate surface and a cam bearing surface, located on different sides of a cam pivot axis. The cam member is located within the main recess, the cam arcuate surface being adjacent the recess arcuate surface and the cam bearing surface being adjacent the recess bearing surface. The cutting portion is moveable between a neutral position and an adjusted position, in which the axial position of the cutting insert is adjusted when the cam member is rotated about the cam pivot axis.
    Type: Grant
    Filed: December 26, 2012
    Date of Patent: October 7, 2014
    Assignee: Iscar, Ltd.
    Inventor: Roohi Mokthar
  • Patent number: 8794878
    Abstract: A cutting tool comprising a cutting tool holder and a cutting insert adapted to be mounted thereon. The tool holder comprises an insert seat defined by a base and at least one side wall extending from the base to define an insert seat space adapted to receive therein the insert. The seat comprises a support element extending into the insert seat from the base, and a fastening member engageable with the seat. The fastening member is displaceable with respect thereto between a mounting position adapted to allow the insert to be mounted onto the seat and a securing position adapted for securing the insert within the seat. The insert is formed with a securing cavity and when the insert is mounted onto the tool holder and is in the securing position, a portion of the support element and the fastening member is received within the cavity of the insert.
    Type: Grant
    Filed: February 25, 2010
    Date of Patent: August 5, 2014
    Assignee: No Screw Ltd
    Inventor: Gershon Harif
  • Patent number: 8662798
    Abstract: A tool for the turn/turn broaching or external milling of a workpiece is disclosed. The tool comprises a disk-shaped broaching wheel or at least one segment of such a broaching wheel. In each case, at least one cutting-tip holding fixture in each case for receiving a cutting tip is provided on the end faces of the broaching wheel or segment laterally adjoining a circumferential surface. On at least one of the two end faces, a cutting-tip holding fixture is formed in a cartridge, which is axially adjustable with respect to the broaching wheel or segment by an axial clamping wedge. The cartridge is designed in such a way that it at least partially covers the axial clamping wedge in a direction towards the circumferential surface.
    Type: Grant
    Filed: March 5, 2012
    Date of Patent: March 4, 2014
    Assignee: Kennametal Inc.
    Inventor: Jürgen Leisner
  • Patent number: 8647023
    Abstract: A slotting cutter includes a disc-like cutter body rotatable in a predetermined direction on a central axis perpendicular to a plane of the cutter body. A plurality of cutting insert receiving pockets and a corresponding number of thread holes are formed about a perimeter of the body. A cutting insert is replaceably mounted in each insert receiving pocket of the cutter body, and a clamping screw is replaceably threaded in each thread hole of the cutter body. A cantilevered portion is disposed between each insert receiving pocket and a respective thread hole that exerts a downward force to securely hold the cutting insert in the cutter body when the clamping screw is threaded into the thread hole.
    Type: Grant
    Filed: April 4, 2011
    Date of Patent: February 11, 2014
    Assignee: Kennametal Inc.
    Inventors: Vladimir David Volokh, James Michael Waggle
  • Patent number: 8262323
    Abstract: A clamping mechanism clamps a cutting insert in a tool body. The clamping mechanism has a clamping arm seated within a clamping arm pocket. The clamping arm includes a clamping protrusion extending rearwardly from a rear surface of the clamping arm. The cutting insert has a bore having an insert retaining surface and is seated within an insert pocket. Upon tightening the clamping arm into the tool body, the clamping protrusion presses against the insert retaining surface and the cutting insert is securely abutted within the insert pocket.
    Type: Grant
    Filed: November 5, 2009
    Date of Patent: September 11, 2012
    Assignee: Iscar, Ltd.
    Inventors: Amir Satran, Evgeny Tulchinsky, Alexander Koifman
  • Patent number: 8205650
    Abstract: A clamping assembly to hold a woodworking knife in place in a woodworking machine. The clamping assembly comprises a clamping component comprising a body and an actuator. The body has three discrete contact positions distributed thereon: 1) a fulcrum located generally at one end, 2) a knife abutting portion located generally at the other end, and 3) a bearing surface located elsewhere. The actuator is for applying a clamping force to the body along a clamping axis located intermediate of the knife abutting portion and the fulcrum. The fulcrum is a surface having a normal that is at an angle to the clamping axis. The bearing surface is a surface wherein a line normal to the bearing surface intersects the line normal to the fulcrum at a position outside of the clamping component at a location farther askew of the clamping axis than the fulcrum.
    Type: Grant
    Filed: January 5, 2006
    Date of Patent: June 26, 2012
    Assignee: Iggesund Tools AB
    Inventors: Ian G. Zinniger, Mathieu J. A. Gouin, Daniel M. LaGrange
  • Patent number: 8197161
    Abstract: A chip-removing tool, includes a basic body, at least one cutting body attachable to the basic body and having at least one geometrically defined cutting edge. An adjusting device has an adjusting element expandable by an adjusting screw. The adjusting element is a slotted ring which is supported, on the one hand, on the cutting body and, on the other hand, on the basic body of the chip-removing tool.
    Type: Grant
    Filed: August 22, 2008
    Date of Patent: June 12, 2012
    Assignee: Mapal Fabrik fur Prazisionswerkzeuge Dr. Kress KG
    Inventor: Rudolf Strom
  • Patent number: 7997833
    Abstract: An insert clamping wedge for clamp-fixing a cutting insert, seated in an insert attachment seat formed in a cutter body, to a recessed portion formed in the insert attachment seat is provided, the insert clamping wedge including: a wedge body, wherein the insert clamping wedge is pressed into the cutter body, wherein the wedge body includes a clamp surface which comes into close contact with the cutting insert and a wedge surface of which a gap between itself and the clamp surface becomes smaller in a press-insertion direction of the wedge body, and wherein the section perpendicular to the press-insertion direction of the wedge body from the wedge surface to the clamp surface being formed in a bell shape.
    Type: Grant
    Filed: February 14, 2011
    Date of Patent: August 16, 2011
    Assignee: Mitsubishi Materials Corporation
    Inventors: Hiroaki Hayashizaki, Hiroshi Hoki
  • Publication number: 20110135408
    Abstract: A temporary coupling mechanism facilitates replacement of a cutting tip in a pocket of a cutting tool, by preventing the cutting tip from falling out of the pocket when a clamping member, e.g., a screw member or wedge member, is loosened. The pocket is provided with a first coupling portion and the cutting tip is provided with a second coupling portion configured to engage the first coupling portion. In one embodiment, the second coupling portion is at least one concave groove or convex portion located in a predetermined position of the cutting tip. A convex portion or a concave groove is provided in at least one of the pocket's tip mounting seat and the clamping member to engage the concave groove and the convex portion of the cutting tip.
    Type: Application
    Filed: December 3, 2010
    Publication date: June 9, 2011
    Applicant: Tungaloy Corporation
    Inventor: Ryuichi Saji
  • Patent number: 7909543
    Abstract: An insert clamping wedge for clamp-fixing a cutting insert, seated in an insert attachment seat formed in a cutter body, to a recessed portion formed in the insert attachment seat is provided, the insert clamping wedge including: a wedge body, wherein the insert clamping wedge is pressed into the cutter body, wherein the wedge body includes a clamp surface which comes into close contact with the cutting insert and a wedge surface of which a gap between itself and the clamp surface becomes smaller in a press-insertion direction of the wedge body, and wherein the section perpendicular to the press-insertion direction of the wedge body from the wedge surface to the clamp surface being formed in a bell shape.
    Type: Grant
    Filed: March 26, 2009
    Date of Patent: March 22, 2011
    Assignee: Mitsubishi Materials Corporation
    Inventors: Hiroaki Hayashizaki, Hiroshi Hoki
  • Patent number: 7862261
    Abstract: A tool holder for a resharpenable cutting tool insert has a body portion which includes a recess. A wedge member is positioned in the recess. A locking screw locks the wedge member such that the top surface of the wedge member is in engagement with the bottom surface of the insert and the locking screw is threadably connected to the body portion and to the wedge member so that the cutting tool insert may be removed for sharpening and re-inserted at the same location relative to the tool holder.
    Type: Grant
    Filed: August 27, 2008
    Date of Patent: January 4, 2011
    Assignee: Century Tool & Design, Inc.
    Inventor: Leslie V. Bean
  • Publication number: 20100215445
    Abstract: A cutting tool has a tool body provided with at least one insert pocket in which a cutting insert is retained. A device for adjusting a position of the cutting insert within the insert pocket is also provided. A cavity adjacent the insert pocket accommodates an adjustment wedge having a forward surface in sliding contact with a minor side surface of the cutting insert and an adjustment screw threadingly engaged with a female threaded section of the adjustment wedge. The adjustment screw is constrained to remain in its position in the cavity, although rotation of the adjustment screw about its axis results in a sliding motion of the adjustment wedge relative to the cavity and a sliding motion of the forward surface relative to the minor side surface, which translates to displacement of the cutting insert in a direction parallel to a base surface of the insert pocket.
    Type: Application
    Filed: January 15, 2010
    Publication date: August 26, 2010
    Applicant: Iscar, Ltd.
    Inventors: Danny Chen, Alexander Orlov
  • Patent number: 7735531
    Abstract: A planing head, cylindrical body for a planing head and a method of manufacture thereof are provided. The planing head includes a cylindrical body having an axis of rotation, an outer surface around the axis of rotation, and opposite first and second end faces. A plurality of blade assemblies is arranged along the outer surface. A plurality of grooves is provided in the outer surface and each groove is configured to receive a respective one of the plurality of blade assemblies. A hydraulic pressure system for supplying a hydraulic pressure to each of the blade assemblies is provided. The hydraulic pressure system includes a plurality of transverse channels for receiving a pressurised hydraulic fluid and a plurality of oblique channels hydraulically linking the plurality of transverse channels. Each transverse channel extends at least partially through the cylindrical body.
    Type: Grant
    Filed: August 10, 2007
    Date of Patent: June 15, 2010
    Assignee: Les Produits Gilbert Inc.
    Inventors: Sylvain Gilbert, Daniel Paré
  • Publication number: 20100104384
    Abstract: A cutting tool includes at least one cutting portion, having an insert pocket, releasably retaining a single-sided cutting insert therein. The cutting portion has a tangential screwing element to clamp the cutting insert in the insert pocket. The screwing element, which comprises a screw, allows releasing and clamping of the cutting insert without having to completely remove the screwing element from the insert pocket. The cutting insert has a top surface, a bottom surface and a peripheral side surface; a recess is formed in the bottom surface. The screwing element is inserted into the recess via the bottom surface. Upon fastening of the screw, a protruding portion of the screwing element clamps the cutting insert in its insert pocket. The cutting insert and protruding portion may have respective geometries allowing them to abut one another at at least two distinct abutment sub-regions.
    Type: Application
    Filed: October 15, 2009
    Publication date: April 29, 2010
    Applicant: Iscar, Ltd.
    Inventors: Alexander Orlov, Danny Chen
  • Publication number: 20090175693
    Abstract: In a cutting tool for chip removing machining a holder for a cutter has a body received therein and movable with surfaces to bear against the cutter for defining the position of the cutter in the direction of an intended axis of rotation of the holder as well as a screw which may be screwed in a threaded bore in the holder. Spring members are arranged to act between the holder and the body for biasing the body against said screw portions.
    Type: Application
    Filed: May 15, 2007
    Publication date: July 9, 2009
    Inventor: Mikael Jansson
  • Patent number: 7527696
    Abstract: A debris removal tool is generally provided with a head unit having a base plate, at least one cutting tooth and a drive unit for rotating the base plate. A flex plate may be provided for biasing the base plate with respect to an axis of rotation. The cutting teeth may be removably and pivotably coupled with the base plate. An elongated handle may be provided for use with the head unit and may be pivotably secured there too. Rechargeable and disposable power sources may be used with the drive unit. Various embodiments that incorporate functional grips and brushes are also disclosed.
    Type: Grant
    Filed: January 17, 2006
    Date of Patent: May 5, 2009
    Assignee: CMK Engineering Inc.
    Inventor: Alvin A. Aus
  • Patent number: 7425108
    Abstract: A method of currently milling multiple splines on a round rod material. Inserts mountable on a milling machine are provided. The inserts each include two sets of milling teeth. The sets or sections of teeth are formed in the arc of a circle to enable milling multiple splines concurrently. The first set of teeth rough mills the grooves for the splines and the second set of teeth provides the finished milling.
    Type: Grant
    Filed: January 25, 2007
    Date of Patent: September 16, 2008
    Inventors: Laszlo Frecska, James T. Hartford
  • Patent number: 7390151
    Abstract: A rotary cutter head is provided with helical carbide cutting blade inserts. The blade inserts extend along a helical path and are configured for cutting rotation in a predetermined direction. The blade inserts are secured to the cutter head body in a helical slot formed between a wall of the cutter head body and a plurality of clamping wedges. The blade insert may have a tapered body that facilitates locking and securing the blade insert to the cutter head body in a radial direction in response to centrifugal forces created as the rotary cutter head rotates.
    Type: Grant
    Filed: March 14, 2006
    Date of Patent: June 24, 2008
    Assignee: Great Lakes Custom Tool Mfg., Inc.
    Inventors: Raymond L. Martin, Russell L. Martin
  • Patent number: 7273331
    Abstract: A boring bar has a shank having a cutter support head at one end. A flow passage extends longitudinally through the shank to the cutter support head and intersects a transverse flow passage that is defined in part by a clamp screw passage of the head. A metal cutting insert is clamped to the cutter support head by a clamp that is secured by a clamp screw being threaded into the clamp screw passage. The clamp member defines at least one coolant fluid flow passage having a discharge opening or openings each located and oriented to direct a jet of coolant fluid onto the metal cutting insert immediately at the site of cutting engagement within the rotating workpiece. The clamp screw defines an internal passage that communicates with the transverse coolant fluid flow passage and conducts coolant fluid onto the metal cutting insert.
    Type: Grant
    Filed: December 29, 2004
    Date of Patent: September 25, 2007
    Inventor: Enrico R. Giannetti
  • Patent number: 7234902
    Abstract: A milling tool holder apparatus includes a tool holder having a male structure received in a female opening of a shank, and a camming plug received in a transverse plug-receiving opening in the shank and the tool holder. Turning the camming plug in one direction moves the male structure axially to a locked position. Turning the camming plug in the opposite direction moves the male structure axially to a release position.
    Type: Grant
    Filed: January 6, 2005
    Date of Patent: June 26, 2007
    Inventor: Stojan Stojanovski
  • Patent number: 7198436
    Abstract: The present invention relates to a router tool for edging the peripheral edge of eyeglass lenses. The tool comprises a longitudinally extending body rotatable on the axis thereof. A first blade extends axially and radially from the body, and has a first cutting portion for shaping an edge of a lens to a first configuration. A second blade is provided that is axially spaced from the first blade. The second blade extends axially and radially from the body, and has a second cutting portion for shaping an edge of a lens to a second configuration different than the first configuration. The present invention also relates to an edger having the disclosed router tool, and a method for shaping the edge of eyeglass lenses.
    Type: Grant
    Filed: October 14, 2004
    Date of Patent: April 3, 2007
    Assignee: National Optronics, Inc.
    Inventor: David W. Gerding
  • Patent number: 7189031
    Abstract: A toolholder has an insert clamp in the form of a lever that urges the top of a cutting insert into the pocket of the toolholder. The lever may be spring biased against the insert and may also be dynamically activated by rotation of the toolholder. Additionally, the lever may be on the form of a cam. A method is described of securing a cutting insert within the pocket using the lever.
    Type: Grant
    Filed: December 11, 2003
    Date of Patent: March 13, 2007
    Assignee: Kennametal Inc.
    Inventors: John J. Bellinger, Nathan L. Goldblatt, Rachel Suling Lin, James David Rene Raskob
  • Patent number: 7182112
    Abstract: A cutter head for wood planing machine comprises elongated slots, wedges and blade retainers of a cooperative configuration that allows the blade retainers to be positioned in the slots with the wedges overlying the blade retainers. The wedges may be shifted upwardly and away from a base portion of the associated blade retainer to urge the blade retainer toward a blade to clamp the blade in the slot. Magnets may be used to loosely hold the blade in place for adjustment of blade height or to tighten the blade retaining assembly comprising the associated wedge and blade retainer. In addition, the base of the blade retainer may be retained in the slot by one or more magnets.
    Type: Grant
    Filed: June 15, 2004
    Date of Patent: February 27, 2007
    Assignee: DesignTek LLC
    Inventor: Thomas A. Meados
  • Patent number: 7104739
    Abstract: A milling disk for a floor machining appliance has a plurality of mounts for holding interchangeable plate-like milling tips, the milling disk being driven for rotation by the floor machining appliance and being held substantially parallel to the substructure to be machined so that the milling tips may bite into the substructure and remove matter from the surface thereof. The milling tips are constituted by ceramic cutting tips.
    Type: Grant
    Filed: January 21, 2005
    Date of Patent: September 12, 2006
    Assignee: Eugen Laegler GmbH
    Inventor: Karleugen Lagler
  • Patent number: 7086812
    Abstract: The cutting tool includes a cutter body having at least one pocket therein adapted to receive a cutting insert cartridge assembly. The at least one pocket has a forward wall, a rearward wall and a bottom wall. The bottom wall extends between the forward wall and the rearward wall and is arranged at an angle greater than 90 degrees relative to the forward wall and is arranged at an angle less than 90 degrees relative to the rearward wall. The insert cartridge assembly includes a cartridge and a clamping wedge. The cartridge has a front surface, a rear surface and a bottom surface and an insert pocket for receiving the cutting insert. The bottom surface is shaped to correspond to the bottom wall of the pocket, and the rear surface is shaped to correspond to the rearward wall of the pocket. The clamping wedge is of a dove tail shape and includes a forward wedge surface and a rear wedge surface.
    Type: Grant
    Filed: April 25, 2003
    Date of Patent: August 8, 2006
    Assignee: Kennametal Inc.
    Inventors: Kevin M. Gamble, Thomas J. Long, II
  • Patent number: 7044695
    Abstract: A milling cutter having a pair of clamping components mounted on a tool holder to form a slot for receiving a cutting insert. One of the clamping components forms an integral extension of the tool holder's shank. The two clamping components are fastened together by threaded fasteners. The insert is fastened to the clamping components by a second threaded fastener received in through-holes in the two components and a central opening in the cutting insert.
    Type: Grant
    Filed: July 2, 2004
    Date of Patent: May 16, 2006
    Inventor: Stojan Stojanovski
  • Patent number: 7011261
    Abstract: A cutting machine used for cutting elongate plastic materials into granules includes a cutting tool, which consists of a roller-shaped body, several knives, and soft metallic bars; the roller-shaped body has lengthwise extended holding trenches spaced on an outer side, and fitting trenches formed along lateral sides of the holding trenches; each knife has a lengthwise extending fitting trench on a lateral side thereof; the knives are fitted in respective ones of the holding trenches of the roller-shaped body with blades thereof projecting out; the soft metallic bars are fitted in respective ones of the holding trenches of the body and touching the corresponding knives; the soft metallic bars are pressed with such an external force as to change shape and project into the fitting trenches of the body as well as the fitting trenches of the knives, thus securing the knives to the body.
    Type: Grant
    Filed: July 20, 2004
    Date of Patent: March 14, 2006
    Assignee: Chen Yu Machinery Industry Co., Ltd.
    Inventor: Chin-Yu Lee
  • Patent number: 6942431
    Abstract: A rotatable cutting tool, e.g., a milling cutter, includes a rotatable base body and a cutting insert, which in addition to two opposite side surfaces has front and rear end surfaces. For axial fine-adjustment of the cutting insert, a set screw is arranged that is located in an area behind the cutting insert and inclined at an obtuse angle to a side surface of the cutting insert. During an unscrewing of the set screw, it presses against the rear end surface of the cutting insert with the purpose of moving the cutting insert in the direction axially forwards, whereby the screw, due to the obtuse angle, is centrifugally secured by means of the actual cutting insert.
    Type: Grant
    Filed: November 20, 2002
    Date of Patent: September 13, 2005
    Assignee: Sandvik Antiebolag
    Inventors: Göran Pantzar, Lars Hellström
  • Patent number: 6902357
    Abstract: A rotatable cutting tool having s support region (1) with an end surface (2) and a plurality of recesses (4) extending from the end surface (2) and in which, respectively, a plurality of cutting elements (5) are arranged, with each recess having a rigid stop surface (7) for a cutting element (5) and faces in a rotational direction (R) of the tool, and a gripping surface (8) facing in a direction opposite the tool rotational direction (R) and cooperating with the cutting element, with the gripping surface (8) being displaceable by a respective locking element in the direction opposite the tool rotational direction.
    Type: Grant
    Filed: July 29, 2002
    Date of Patent: June 7, 2005
    Assignee: Hilti Aktiengesellschaft
    Inventors: Matthias Blessing, Werner Wanger
  • Patent number: 6739807
    Abstract: A rotatable cutting tool comprising a cutting tool body having at least one recess for receiving a replaceable insert. The recess has a wall defined by a deformable clamp extending radially from the tool body, the clamp comprising a leaf isolated from the tool body except at the base of the leaf by an isolating channel in the tool body. The tool further comprising adjustable clamping means for elastically deforming the leaf to retain a replaceable insert in the recess.
    Type: Grant
    Filed: November 26, 2001
    Date of Patent: May 25, 2004
    Assignee: Valenite LLC
    Inventors: James J. Robinson, Kenneth A. Grech, Larry A. Brow
  • Patent number: 6644369
    Abstract: A cutter unit includes two positioning bars mounted securely in a retaining groove of a rotating axle to define a cutter-receiving chamber therebetween. A cutter positioning block is disposed in the chamber. A first side face of the cutter positioning block is formed with a cutter-holding recess to receive a cutter. The recess is defined by a recess-confining wall with two opposing wall portions abutting against two end faces of the cutter. A side face of the cutter is disposed outwardly of the recess. An adjusting unit is disposed between and abuts against a second side face of the cutter positioning block and one of two wall portions of the retaining groove, and is adjustable to move the cutter positioning block and the cutter so as to press the cutter against the other one of the wall portions of the retaining groove.
    Type: Grant
    Filed: November 7, 2002
    Date of Patent: November 11, 2003
    Inventor: Pei-Lieh Chiang
  • Publication number: 20030202849
    Abstract: The cutting tool includes a cutter body having at least one pocket therein adapted to receive a cutting insert cartridge assembly. The at least one pocket has a forward wall, a rearward wall and a bottom wall. The bottom wall extends between the forward wall and the rearward wall and is arranged at an angle greater than 90 degrees relative to the forward wall and is arranged at an angle less than 90 degrees relative to the rearward wall. The insert cartridge assembly includes a cartridge and a clamping wedge. The cartridge has a front surface, a rear surface and a bottom surface and an insert pocket for receiving the cutting insert. The bottom surface is shaped to correspond to the bottom wall of the pocket, and the rear surface is shaped to correspond to the rearward wall of the pocket. The clamping wedge is of a dove tail shape and includes a forward wedge surface and a rear wedge surface.
    Type: Application
    Filed: April 25, 2003
    Publication date: October 30, 2003
    Inventors: Kevin M. Gamble, Thomas J. Long
  • Patent number: 6626214
    Abstract: A cutter for a wood planing machine includes a block piece having a blade-mounting face that is formed with a positioning groove, and a blade attached to the blade-mounting face and having a plurality of positioning tabs projecting into and engaging the positioning groove.
    Type: Grant
    Filed: August 26, 2002
    Date of Patent: September 30, 2003
    Inventor: Teng-Fu Hu
  • Patent number: 6591878
    Abstract: A method and apparatus for clamping a knife. A front side of the knife includes a recess and the knife is clamped between an outer clamping member adapted to receive the back side of the knife, and a inner clamping member adapted to receive the front side of the knife, the inner clamping member making contact with the front side of the knife at two spaced locations thereon, wherein at least one of the locations is outside the recess and the other is inside the recess, wherein the width of the recess normalized by the overall width of the knife yields a result that is preferably no more than about 0.22.
    Type: Grant
    Filed: July 18, 2001
    Date of Patent: July 15, 2003
    Assignee: Key Knife, Inc.
    Inventor: Thomas Charles Hinchliff
  • Publication number: 20030103818
    Abstract: A slotting cutter includes a circular disc having an outer periphery along which a plurality of chip channels are formed which define respective seats for receiving respective index able cutting inserts. Each insert includes a planar bottom side. Either the seat or the bottom side has a male locator portion, and the other of the seat and the bottom side has a female locator portion which receives the male locator portion to define therewith and insert-locating structure. The male and female locator portions are offset laterally from a center plane of the insert oriented perpendicular to an axis of rotation of the disc. Alternating ones of the insert-locating structures are disposed on respective opposite sides of the center plane.
    Type: Application
    Filed: October 3, 2002
    Publication date: June 5, 2003
    Inventor: Willy Astrom
  • Publication number: 20030077135
    Abstract: The a cutting tool, especially a reaming and countersinking tool, has having a base body, on which at least one blade is replaceably fixed by clamping by means of at least one tensioning member, the at least one tensioning member comprising a tensioning surface engaging on the blade and a bearing surface facing the base body, wherein the clamping surface of the blade or the tensioning surface of the at least one tensioning member and a region of the bearing surface or of a contact surface in the base body lying opposite the tensioning surface or the clamping surface are disposed at an angle of less than 60° relative to one another.
    Type: Application
    Filed: September 5, 2002
    Publication date: April 24, 2003
    Inventor: Jorg Agarico
  • Patent number: 6540449
    Abstract: A rotatable tool for chip removing machining includes a shaft and a cutting body connected detachably to the shaft by a drawbar. At its front end the drawbar has a locking device for effecting mechanical engagement with the cutting body. The drawbar is axially movable by an actuating element located at a distance from the locking device. Inside the cutting body there is a cavity, which communicates with an opening in a rear part of the cutting body. The opening has a smaller width than the cavity, and the locking device has a larger width than the opening in order to be able to be pressed against an interior rear surface of the cavity of the cutting body after the locking device is inserted into in the cavity.
    Type: Grant
    Filed: October 26, 2000
    Date of Patent: April 1, 2003
    Assignee: Sandvik Aktiebolag
    Inventors: Per Bejerstål, Sven-Erik Carlsson
  • Patent number: 6367523
    Abstract: A cutting tool device for a wood planing machine includes a driving shaft having a cylindrical portion and a plurality of insert receiving channels. Each of the channels includes a knife seat wall surface and an abutment wall surface, which confine an accommodating cavity therebetween. The knife seat wall surface has left and right end edges respectively having left and right secant points at a respective junction with an outer wall surface of the cylindrical portion. The left secant point lags behind the right secant point in a counterclockwise operating direction. A planing knife is disposed to abut against the knife seat wall surface. A tightening insert member is inserted into the accommodating cavity, and has front and rear wall surfaces respectively abutting against the planing knife and the abutment wall surface to thereby clamp the planing knife firmly in the respective channel.
    Type: Grant
    Filed: June 6, 2001
    Date of Patent: April 9, 2002
    Inventor: Teng-Fu Hu
  • Patent number: 6224299
    Abstract: A milling tool having replaceable straight elongated inserts that provide a helical cutting action. The tool has grooves formed at an angle with the longitudinal axis of the tool, the grooves have flat surfaces. Wedge means secure the respective inserts in respective grooves of the tool. The wedge means each have a plurality of apertures on the surface bearing against the insert, and coolant fluid under pressure is provided through said apertures to exit adjacent the cutting edge of said insert and against the work surface.
    Type: Grant
    Filed: August 13, 1999
    Date of Patent: May 1, 2001
    Inventors: Laszlo Frecska, James T. Hartford
  • Patent number: 6161602
    Abstract: A finger joint cutting tool includes unitary finger joint cutter bits. Each cutter bit has a unitary body to provide several integrally formed finger cutting teeth for finger jointing wood materials. Preferably the body is formed by an electrical discharge machine (EDM) process to provide the cutting teeth without any pinchpoints between teeth. The cutter bit therefore does not include several separate stacked knives to provide the cutting teeth. The finger joint cutting tool includes a head having a predetermined axis of rotation. The head has a plurality of locating surfaces spaced radially about the head which receive the finger joint cutter bits at a constant diameter. Each cutter bit is unitary and has a planar cutting face capable of being sharpened. The cutting face includes a plurality cutting teeth having linear fingering edges extending radially between adjacent base and tip edges. Each of the base edges are located at the same radius relative to the axis.
    Type: Grant
    Filed: October 7, 1999
    Date of Patent: December 19, 2000
    Assignee: Wisconsin Knife Works, Inc.
    Inventor: Steven D. Erbs
  • Patent number: 6131627
    Abstract: A planer (10), in particular a hand held planer for machining wood, with a planer housing (12), which includes a planer shaft (20), supported rotatably in at least one direction with an outer contour (23), which in a longitudinal groove (46) has at least one planer blade (21), which is braced on a centrifugal wedge (56) that can be prestressed with a spring (54) or the like can be produced more simply and economically in that the centrifugal wedge (56) is fastened to the planer shaft (20), elastically movably relative to it, in captive fashion solely by the spring (54), in particular being removable without destruction, and substantially without touching the planer shaft (20).
    Type: Grant
    Filed: March 9, 1998
    Date of Patent: October 17, 2000
    Assignee: Robert Bosch GmbH
    Inventor: Adolf Zaiser
  • Patent number: 6126364
    Abstract: A reamer for chip removing machining includes a holder having a line of pockets, each pocket including a support surface facing in a direction of feed of the holder. Cutting inserts are mounted in respective ones of the pockets and project out of the pocket at progressively greater distances. Clamping assemblies clamp respective inserts in their respective pockets. Each clamping assembly includes a shank projecting into a hole formed in the pocket, a clamping head fixed to the shank and situated in the pocket, and a spring yieldably biasing the shank and the clamping head to a position wherein the clamping head forces a rear surface of the insert against the support surface. By depressing a shank against its spring bias, a respective insert can be replaced.
    Type: Grant
    Filed: April 5, 1999
    Date of Patent: October 3, 2000
    Assignee: Seco Tools AB
    Inventor: Bertrand Riviere
  • Patent number: RE38930
    Abstract: An improved knife holder for a chipper disc. A knife holder for boding a knife has a first clamping portion and a second clamping portion for clamping the knife therebetween. One of the clamping portions pivots about a pivot point for clamping the knife and for releasing the knife so that it may be easily removed from the knife holder. In the relative position of the clamping portions in which the knife is clamped and in their relative positions in which a space is opened up around the knife permitting its removal, the clamping portions are rigidly disposed with respect to one another.
    Type: Grant
    Filed: November 3, 2000
    Date of Patent: January 10, 2006
    Assignee: Key Knife, Inc.
    Inventors: Troy M. Swartwood, Douglas O. Keller, Loren R. Schuh