Patent attributes
An adjustable fixture includes a lower clamp piece, an upper clamp piece covering the lower clamp piece at a closed position to define a clamping space. The upper clamp piece has an anti-hook edge projecting outward. A torque rod has a first end pivoted to one side of the lower clamp piece. A traction element has a first traction end pivoted to the torque rod adjacent to the first end thereof and a second traction end that defines a threaded through hole to receive a thread bolt threadedly and movably therethrough; and a hook disposed on a second traction end of the traction element and operably associated so as to be movable together with the threaded bolt in such a manner to engage the hook with the anti-hook edge of the upper clamp piece when the upper clamp piece is disposed at the closed position.
