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    • 21. 发明公开
    • TIPPED CIRCULAR SAW AND METHOD FOR MANUFACTURING TIPPED CIRCULAR SAW
    • EP4008467A1
    • 2022-06-08
    • EP20848359.4
    • 2020-07-30
    • Sul Corte Importadora de Ferramentas Ltda.
    • SPANHOLI TELES, FernandoSPANHOLI, Gustavo
    • B23D61/02B23D45/00B23D47/00B23D63/14B23D65/02
    • The invention proposes a tipped circular saw blade (10) comprising a saw body (11) with a peripheral circular region made of a first material, the peripheral circular region having a plurality of slots (12), and a plurality of tips (13) made of a second material, each tip (13) fixed to a respective slot (12) to form a saw tooth (14) defined between an anterior gullet (15) and a posterior gullet (16), each saw tooth (14) having a cutting edge (141). In accordance with the invention, each saw tooth (14) has a leading face (142) defined between the anterior gullet (15) and the cutting edge (141), the leading face (142) having a profile that includes a single curved surface formed by an R radius, the curved surface encompassing the first material and the second material. The invention further proposes a method of manufacturing a tipped circular saw blade (10), the method comprising a step of forming a saw body (11) with a peripheral circular region made of a first material, the peripheral circular region having a plurality of slots (12); a step of joining a plurality of prefabricated tips (13a), made of a second material, to the respective slots (12) of the peripheral region of the saw body (11), obtaining a preliminary tipped circular saw blade (10a); and a step of grinding the preliminary tipped circular saw blade (10a) to form a plurality of saw teeth (14), each saw tooth (14) defined between an anterior gullet (15) and a posterior gullet (16), and having a cutting edge (141) and a leading face (142) defined between the anterior gullet (15) and the cutting edge (141), the leading face (142) having a profile that includes a single curved surface formed by an R radius, the curved surface encompassing the first material and the second material.
    • 29. 发明公开
    • HAND-HELD MITER SAW
    • 手斜切
    • EP2928631A2
    • 2015-10-14
    • EP13821444.0
    • 2013-12-06
    • Silas List Cutter APS
    • SAUER, Silas Ohm
    • B23D45/00B23D45/12B23D45/16
    • B23D45/16B23D45/006B23D45/12B27B27/06
    • A hand-held miter saw (1) with an electrically powered circular saw blade (2) serves for cutting a rod (3). The miter saw comprises a table (4) for supporting the rod (3) and a guideway (5) equipped on the table (4) for aligning the rod (3) into a desired miter angle, a bearing (6) with an axis (7) extending parallel with the table (4) and consisting of a piece of tube (8) and a piece of axle (9) pivotally mounted in the tube (8), a first lever (10) connected to the tube (8) of the bearing (6) and a second lever (11) connected to the axle of the bearing (6), a cutting head (12) supporting the spindle (13) of the circular saw blade (2) in positions where the axis of rotation (14) of said spindle (13) is parallel with the axis of the bearing (6), an arm (15) which is formed on the cutting head (12) and attached to the axle of the bearing (6) or pivotally connected to the first lever (10), and a bar (16), which is attached to the tube (8) of the bearing (6) or to the first lever (10) and is supporting the table (4) in such way that the table (4) can turn about a pivot axis of the table (4) so that the guideway forms an angle with the axis (14) of rotation of the saw blade (2). The miter saw (1) has a light and inexpensive structure and can easily be transported to the area where the rod to be cut is located and here easily and rapid be operated when supported only by one or two of the hands of an operator.