Patent ID: 8245616
Filing Date: 2012-08-21
Classification: B23D,Y10T

Abstract:
1. A band saw machine comprising: a support column, an upper band wheel, and a lower band wheel; an endless band saw blade mounted on the upper band wheel and the lower band wheel; a guide arm comprising at least one support member extending from the guide arm, the at least one support member comprising an extension member having a threaded aperture therethrough; a blade guide carrier comprising a longitudinally-extending member having a bottom portion, the blade guide carrier providing a slot structure with an open end for accommodating the endless band saw blade between at least two opposing blade guide members, the blade guide carrier comprising at least one arcuate surface that is configured to rotatably mate with an arcuate surface of the at least one support member; a fork member comprising a pair of fork extension members, each fork extension member having an inner surface, the fork member being attached to the bottom portion of the blade guide carrier, the fork member being operable to rotate the blade guide carrier and the endless band saw blade relative to the guide arm from a first blade installation position to a second locked position in which the fork member is operable to be rotated upwardly such that the fork extension members straddle the extension member to selectively prevent rotation of the blade guide carrier within the at least one support member and wherein the endless saw blade is removeable from the open end of the slot structure in the blade guide carrier throughout the blade carrier's range of rotation between the first installation position and the second operational position; and a drive screw in the threaded aperture of the support member extension member, the drive screw being adjustable within the threaded aperture to protrude from either side of the extension member to contact the inner surfaces of the fork extension members to provide accurate rotational adjustment of the blade guide carrier and the endless band saw blade relative to the guide arm when the fork member is rotated upwardly into said second locked position.