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    KNIVES AND KNIFE ASSEMBLIES
    51.
    发明专利
    KNIVES AND KNIFE ASSEMBLIES 未知

    公开(公告)号：CA2641803A1

    公开(公告)日：2009-04-24

    申请号：CA2641803

    申请日：2008-10-24

    Applicant: IGGESUND TOOLS AB

    Inventor： ADENT AARON ,  ENGNELL MATS

    IPC: B27B33/02 ,  B27B33/12 ,  B27G13/04

    Abstract: A knife includes first and second edges, a ridge, a concave surface, and a planar surface. The edges are defined by intersections of out er edge forming surfaces on an outer side of the knife and inner edge forming surfaces on an inner side of the knife. The ridge is on the inner side and t he crest of the ridge is parallel to the first and second edges. The concave surface is between an inner edge forming surface and the ridge, and the planar surface is adjacent to the concave surface and between that first inner edge forming surface and the concave surface. A reference plane intersects the first and second edges, and a distance between any point on the concave surface and the reference plane is not less than a distance between any point on the planar surface and the reference plane.

    CHIPPER KNIFE AND HOLDER THEREFOR
    52.
    发明专利
    CHIPPER KNIFE AND HOLDER THEREFOR 未知

    公开(公告)号：CA2415303C

    公开(公告)日：2009-01-27

    申请号：CA2415303

    申请日：2001-07-13

    Applicant: IGGESUND TOOLS AB

    Inventor： BILLER SVEN-OLOF ,  ENGNELL MATS ,  GRANSTROM OLOV

    IPC: B27L11/00

    Abstract: The invention relates to a chipper knife for chippers of the type comprising a tool (12) which is rotatable on an axis of rotation and is in the form of, f or example a drum, disc or truncated conical body, which supports a plurality o f such chipper knives. The chipper knife comprises at least one cutting edge ( 1) which is formed between a flank (2, 2') and a chip guiding surface (4, 4'), and two opposite main surfaces (3, 3') which are adapted to abut against and be retained on the opposite seats (14, 15) of a holder (9, 10) on the tool. At least one main surface (3, 3') of the chipper knife which is located on a wo od side of the chipper knife comprises a cross-sectionally convexly bent surfac e portion (6, 5') which connects to and extends backwards from the flank (2, 2 ') and the chord of which constitutes at least 20 %, preferably at least 30 % and, most preferably, at least 40 % of the total cross-sectional length of t he chipper knife. The invention also relates to a holder for such a chipper kni fe.

    CHIPPER KNIFE
    55.
    发明专利
    CHIPPER KNIFE 未知

    公开(公告)号：AU2003246210A1

    公开(公告)日：2004-01-06

    申请号：AU2003246210

    申请日：2003-06-11

    Applicant: IGGESUND TOOLS AB

    Inventor： BILLER SVEN-OLOV

    IPC: B27L11/00 ,  B27B33/20 ,  B27G13/00

    Abstract: The block comprises a flat or cone-shaped plate with cutting blades (2) mounted on it so that one end of the blade cutting edge (6) is closer to the block rotation axis than the other end. The cutting edge is bordered by a timber guide surface and a chip guide surface (13), the timber guide surface having an angle relative to its rotation plane which varies over its length, so that the largest angle is at the end of the cutting edge closest to the rotation axis and the angle then reduces in the outwards direction. The chip guide surface also has an angle relative to its rotation plane which varies over its length, so that the angle at the end of the cutting edge closest to the rotation axis increases in the outwards direction, ensuring that the cutting edge angle between the timber and chip guide surfaces remains essentially constant over the entire length of the cutting edge.

    58.
    发明专利
    未知

    公开(公告)号：SE0201865D0

    公开(公告)日：2002-06-19

    申请号：SE0201865

    申请日：2002-06-19

    Applicant: IGGESUND TOOLS AB

    Inventor： BILLER SVEN-OLOV

    IPC: B27L11/00 ,  B27G

    Abstract: The block comprises a flat or cone-shaped plate with cutting blades (2) mounted on it so that one end of the blade cutting edge (6) is closer to the block rotation axis than the other end. The cutting edge is bordered by a timber guide surface and a chip guide surface (13), the timber guide surface having an angle relative to its rotation plane which varies over its length, so that the largest angle is at the end of the cutting edge closest to the rotation axis and the angle then reduces in the outwards direction. The chip guide surface also has an angle relative to its rotation plane which varies over its length, so that the angle at the end of the cutting edge closest to the rotation axis increases in the outwards direction, ensuring that the cutting edge angle between the timber and chip guide surfaces remains essentially constant over the entire length of the cutting edge.

    60.
    发明专利
    未知

    公开(公告)号：NO994372L

    公开(公告)日：2000-03-13

    申请号：NO994372

    申请日：1999-09-09

    Applicant: IGGESUND TOOLS AB

    Inventor： LAGRANGE DANIEL M ,  BILLER SVEN-OLOV

    IPC: B27L11/00 ,  B27G13/00 ,  B27L11/02

    Abstract: A self-aligning knife clamping assembly (10) and machine incorporating the same are disclosed. In one embodiment there is provided a knife clamping assembly (10) having an outer clamping component (22), an inner clamping component (24) and a fastening device (14), such as a bolt, therebetween, to permit the clamping components to be releasably clamped together onto a knife element (50) having a knife edge. Positioned between the knife element (50) and the clamping assembly is a biasing element (60), which urges the knife element to enter, or remain in, a preferred position prior to the knife element being immovably clamped into place. In the preferred embodiment the biasing element is in the form of an elastomeric strip.

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