Payload lift apparatus for vehicles
AssigneeThe Boeing Company
InventorsSamuel Adam Schweighart, Daniel Vincent Uhlig
Life of this patent
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Abstract
Payload lift apparatus for vehicles are disclosed. A lift vehicle includes a frame, a plurality of rotors supported by the frame, and a plurality of first pulleys coupled to the frame. Pairs of pulleys from the plurality of first pulleys are coupled underneath respective ones of the rotors. A plurality of second pulleys is spaced from the frame, where respective ones of the second pulleys are associated with the pairs of first pulleys. A tension line is coupled to the first pulleys and the second pulleys, where the tension line suspends the second pulleys from the frame.
Claims20
A lift vehicle comprising:
- a frame;
- a plurality of rotors supported by the frame;
- a plurality of first pulleys coupled to the frame, pairs of pulleys from the plurality of first pulleys coupled underneath respective ones of the rotors;
- a plurality of second pulleys spaced from the frame, respective ones of the second pulleys associated with the pairs of first pulleys;
- and
- a tension line coupled to the first pulleys and the second pulleys, the tension line having a first terminating end and a second terminating end, wherein the first and second terminating ends of the tension line are joined together.
A lift apparatus comprising:
- a frame to support a plurality of rotors;
- a first pulley coupled to the frame adjacent a first rotor;
- a second pulley coupled to the frame adjacent a second rotor;
- a third pulley suspended from the frame;
- a cable coupled to the first pulley, the second pulley and the third pulley, the cable passes from the first pulley to the second pulley, and from the second pulley to the third pulley;
- and
- a fourth pulley coupled to the frame adjacent the second rotor, a fifth pulley coupled to the frame adjacent a third rotor, and a sixth pulley suspended from the frame via the cable, the cable to pass from the third pulley to the fourth pulley, from the fourth pulley to the fifth pulley, and from the fifth pulley to the sixth pulley.
A lift apparatus comprising:
- a frame having a plurality of sides;
- a plurality of pulleys, wherein the pulleys are coupled to the frame via a swivel mount;
- and
- a cable operatively coupled to the pulleys, wherein each side of the frame includes a first pulley coupled to a first end of the frame, a second pulley coupled to a second end of the frame opposite the first pulley, and a third pulley suspended from the frame via the cable and positioned between the first pulley and the second pulley.
Dependencies are inferred from the claim text.