Cable tightening device operated conveniently
First Claim
Patent Images
1. A cable tightening device, comprising:
- a fixed unit including a base member;
a rotation member rotatably mounted on the base member of the fixed unit;
two opposite ratchet wheels secured on two opposite ends of the rotation member to rotate the rotation member;
a movable unit including a movable member rotatably mounted on the rotation member and rotatable relative to the base member of the fixed unit, a drive handle mounted on and movable with the movable member and releasably engaged with the ratchet wheels to push the ratchet wheels to rotate in a oneway direction when the movable member of the movable unit is rotatable relative to the base member of the fixed unit, and two opposite torsion springs each biased between the movable member and the drive handle to push the drive handle toward the ratchet wheels.
0 Assignments
0 Petitions
Accused Products
Abstract
A cable tightening device includes a fixed unit, a rotation member, two opposite ratchet wheels, and a movable unit. The movable unit includes a movable member, a drive handle and two opposite torsion springs. Thus, the torsion springs are arranged on the movable member symmetrically to provide a predetermined elastic force to the drive handle to eliminate an oblique force produced during the movement of the drive handle, so that the push plates of the drive handle are slidable in the guide slots of the movable member smoothly and exactly without incurring deflection.
-
Citations
15 Claims
-
1. A cable tightening device, comprising:
-
a fixed unit including a base member; a rotation member rotatably mounted on the base member of the fixed unit; two opposite ratchet wheels secured on two opposite ends of the rotation member to rotate the rotation member; a movable unit including a movable member rotatably mounted on the rotation member and rotatable relative to the base member of the fixed unit, a drive handle mounted on and movable with the movable member and releasably engaged with the ratchet wheels to push the ratchet wheels to rotate in a oneway direction when the movable member of the movable unit is rotatable relative to the base member of the fixed unit, and two opposite torsion springs each biased between the movable member and the drive handle to push the drive handle toward the ratchet wheels. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
-
Specification