Patent ID: 7654184
Filing Date: 2010-02-02
Classification: B23D,Y10T

Abstract:
1. A saw blade assembly driving method in a band saw machine, in which an endless saw blade is wound around a driving wheel and a driven wheel rotatably supported by a saw blade housing, the saw blade is rotationally moved by rotationally driving the driving wheel by a saw blade driver and a cut material is cut with the rotationally traveling saw blade, the method comprising: coupling the saw blade driver to a shaft of the driving wheel, wherein a casing of the saw blade driver has a floating structure rotated in a circumferential direction around the driving wheel shaft; controlling a rotating direction of the saw blade driver, which rotates in a same direction as a saw blade rotating direction, via a buffer provided at the saw blade housing; and damping a rotational reaction force caused by the driving of the saw blade by the buffer, wherein the buffer comprises a disc rotationally driven by an electric motor coupled to an engaging member that is in contact with the casing of the saw blade driver.