Patent ID: 9132568
Filing Date: 2015-09-15
Classification: B27B,Y10T

Abstract:
1. A saw comprising: a power unit with a drive component, a housing for the power unit and comprising a frame; a bar on the housing for guiding movement of an operatively positioned cutting chain driven by the drive component in an endless path, the bar movable guidingly in opposite directions in a predetermined path relative to the housing to thereby vary tension upon an operatively positioned cutting chain; a bar fixing assembly comprising a knob that is turnable around a first axis relative to the housing in: a) a first direction to a tightened state wherein the bar is fixed relative to the housing; and b) a second direction with the knob in the tightened state to a loosened state wherein the bar can be moved relative to the housing in the predetermined path, the knob moving in a turning range as the knob changes between the tightened and loosened states; and a first assembly with a first component that resiliently bears against a part of the knob comprising a first surface to thereby produce a force upon the knob that is applied as the knob is turning to thereby give a sensory indication to a user grasping and turning the knob that the knob is moving around the first axis, the first component biased in a first direction generally parallel to the first axis against the first surface relative to which the first component moves as the knob is turned around the first axis, the first surface and component configured so that the first component moves alternatingly in the first direction and oppositely to the first direction as the knob is turning in the same direction about the first axis, the first assembly permitting the knob to turn in opposite directions around the first axis through the turning range with the first component of the first assembly continuing to resiliently bear against the part of the knob, wherein the saw further comprises a mounting plate fixed relative to the housing, wherein the first component is biased away from the mounting plate toward the first surface by a force acting between the mounting plate and the first component.