Pair of saw blades

B - Operations – Transporting – 27 – B

Patent

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Details

B27B 5/29 (2006.01)

Patent

CA 2705443

The invention concerns a pair of saw blades, including a first blade (1 ) and a second blade (2), which are arranged to rotate around the same rotational axis in opposite directions. Each of the blades (1, 2) has its own blade body (3, 4) and peripheral cutting elements (5, 6), wherein the blade body (3) of the first blade (1 ) has a front side, which is turned towards a back side of the blade body (4) of the second saw blade (2), and wherein the cutting elements (5, 6) form overhangs (9, 10) protruding from said front or back side. Said front and/or back side have/has a circumferential ridge (11 ), which is arranged peripherally inside of the cutting elements (5, 6) and to slide over a corresponding part or a corresponding ridge (11 ) on the opposite back side and/or front side, wherein the ridge/ridges (11 ) is/are made in one piece with the blade body (3, 4) in question and serves/serve as a spacer means to prevent the cutting elements (5, 6) with their overhangs (9, 10) to hit each other during rotation of the blades (1, 2).

L'invention concerne une paire de lames de scie, notamment une première lame (1 ) et une deuxième lame (2) qui sont disposées pour tourner autour du même axe de rotation dans des sens opposés. Chaque lame (1, 2) a son propre corps de lame (3, 4) et des éléments de coupe périphériques (5, 6). Le corps de lame (3) de la première lame (1 ) a une face frontale tournée vers une face postérieure du corps de lame (4) de la deuxième lame (2), et les éléments de coupe (5, 6) forment des saillies (9, 10) émergeant de la face frontale ou de la face postérieure. Cette face frontale et/ou postérieure a/ont une protubérance circonférentielle (11 ) est disposée de manière périphérique à l'intérieur des éléments de coupe (5, 6) pour glisser sur une partie correspondante ou une protubérance correspondante (11 ) de la face postérieure et/ou frontale, la/les protubérances (11 ) est/sont réalisées d'un seul tenant avec un corps de lame (3, 4) concerné et sert/servent de moyen d'espacement pour empêcher que les protubérances (9, 10) des éléments de coupe (5, 6) ne se cognent lors de la rotation des lames (1, 2).

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