Patent ID: 8915485

Claim:
A strap-tensioning device comprising: a base; a strap rigidly connected to a first end of the base; a drum mounted for rotation to a second end of the base, the drum configured to receive an end of the strap; wheels to which the drum is rigidly connected; a first pawl configured to slide in the base and to which the wheels engage under the action of a first biasing force; a tensioning lever rotatably mounted to the drum, and provided with a second pawl configured to drive the wheels, the second pawl configured to mesh by default in the wheels under action of a second biasing force and also slide in the lever; an unlocking lever configured to release the wheels from respective engagement thereof with the first pawl and with the second pawl, the unlocking lever being rotatably mounted for actuation independently of the rotation of the tensioning lever, by hinging onto the drum; and cams to which the unlocking lever is rigidly connected, the cams configured to simultaneously engage, respectively, with the first pawl and with the second pawl to release the rotation of the drum.