| 摘要 |
FIELD: construction.SUBSTANCE: invention relates to the saw pulleys. Pulley comprises a rim at outer periphery portion, which is wound on a band saw. Band saw tooth edge portion is provided, formed of a plurality of saw teeth arranged in a row in a circumferential direction and rotatable around rotary shaft. Rim portion includes a supporting surface, edge in contact with a saw in a state where tooth edge portion protrudes from end portion, and a non-contact region between supporting surface and edge and adapted without possibility of contact with band saw.EFFECT: invention is aimed at improving process and operational characteristics.7 cl, 5 dwg, 1 tbl |
