Apparatus for tightly wrapping a package such as disposed on a pallet in a thin film such as for shipping or storage includes a rotating deck adapted to receive the pallet and package to be wrapped. The deck is directly coupled to and supported by a gear box driven by an electric motor. The apparatus further includes a film wrap supply in the form of a roll which lets out the film for wrapping around the package as the deck and package rotate. A manually adjustable tensioner allows for adjusting the stretch of the wrapping film on the package, while the film wrap supply may be adjusted vertically to permit wrapping the package over its entire vertical dimension regardless of the width of the roll of film wrap. A foot control allows an operator of the apparatus to rotate the deck and the package being wrapped while vertically moving the film wrap supply roll to fully enclose the package within the wrapping film.
A locking winch includes a rotatable shaft coupled to a bracket adapted for connection to a structure such as a trailer, truck, hoist, etc. Wrapped around the shaft is a cable, rope or chain and connected to one end of the shaft is a hand operated crank for rotating the shaft in a first direction for retracting the cable about the shaft or for rotating the shaft in a second, opposed direction for removing the cable from the shaft, with the crank movable between first and second positions on the shaft. A sprocket fixedly mounted to the bracket includes a plurality of spaced teeth disposed about the periphery thereof. A torsion spring coupled to the hand operated crank urges the crank to the first position. A locking pin attached to the hand operated crank is disposed between adjacent teeth on the periphery of the sprocket when the crank is in the first position to prevent rotation of the shaft and either withdrawal of the cable from or take-up of the cable on the rotatable shaft. When the crank is manually moved to the second position by overcoming the biasing force exerted by the torsion spring, the locking pin is removed from between adjacent teeth on the sprocket permitting rotation of the crank and shaft and allowing the cable to be either taken up on or removed from the shaft. The crank automatically returns to the first position when manual pressure is removed from the crank, returning the winch to the locked configuration.
A leading end of packaging material is attached to a retainer to hold the leading end of the packaging material as the retainer moves toward the load. The retainer is positioned adjacent the load and packaging material is dispensed from a packaging material dispenser, and relative rotation is provided between the dispenser and a load to wrap packaging material around the load. The packaging material is released from the retainer in response to force applied to the retainer to withdraw it from the wrapped load.
A leading end of packaging material is attached to a retainer to hold the leading end of the packaging material as the retainer moves toward the load. The retainer is positioned adjacent the load and packaging material is dispensed from a packaging material dispenser, and relative rotation is provided between the dispenser and a load to wrap packaging material around the load. The packaging material is released from the retainer in response to force applied to the retainer to withdraw it from the wrapped load.
A leading end of packaging material is attached to a retainer to hold the leading end of the packaging material as the retainer moves toward the load. The retainer is positioned adjacent the load and packaging material is dispensed from a packaging material dispenser, and relative rotation is provided between the dispenser and a load to wrap packaging material around the load. The packaging material is released from the retainer in response to force applied to the retainer to withdraw it from the wrapped load.
The machine and the method are for fastening a load. The machine comprises a machine frame positioned around a central axis, a delivering carriage including an output delivering device for delivering a flexible material as a rope, first controllable moving device for producing a relative radial movement of the output delivering device with respect to the central axis, a second controllable moving device for producing a relative rotating movement of the rope with respect to the central axis, a third controllable moving device for producing a relative axial movement of rope in a direction parallel to the central axis, and a controller for controlling the relative radial movement by means of the first controllable moving device in view of the size of the load, and the relative rotating and axial movements by means of the second and third controllable moving devices to fasten the load with the rope.
