| 摘要 |
<p>A governor assembly is provided herein for use in treadmills. The governor assembly comprises a rotatable member having an opening in one end thereof of a predetermined crosssection; a second member having a cross-sectional configuration conforming to the shape of the opening in the first member slidably extending at least partially into the opening of the first member; bias means engaging one end of the second member for normally biasing the second member in a first direction; a pivotally-mounted cam member having a diagonally-aligned cam surface engageable with the opposite end of the second member and limiting movement of the second member in the first direction in accordance with the angular orientation of the cam member; at least one flexible blade member having a portion secured to the second member at a location beyond the one end of the first member, the blade member having at least one blade arm portion extending diagonally outwardly from the second member, the diagonally-aligned blade arm portion forming an angle with the imaginary rotational axis of the blade arm of less than 90.degree., when the blade member is stationary, the blade arm portion being urged in a direction to increase the angle as a function of increasing rotational speed of the blade arm, the free end of the blade member generally defining a circular path; a brake pad secured to the free end of the blade member; and a stationary member having an annular surface surrounding the imaginary axis of rotation of the blade member and positioned a spaced distance from the brake (page 2) pad on the blade member when the blade member is stationary and adapted to be engaged by the brake pad when the blade member is rotated at predetermined angular velocity, the value of the angular velocity being a function of the spacing between the brake pad and the stationary surface when the blade member is stationary, being adjusted by the cam member.</p> |
