Hand truck
OwnerAnthony Renfrew Whiteinventor
Life of this patent
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Abstract
A hand truck (20) for transporting a load is disclosed. The hand truck (20) comprises a sub-frame (22) with a foot portion (47) extending therefrom so that the sub-frame is able to support the load, a main frame (21) engaged with the sub-frame (22) such that the sub-frame (22) is able to be extended and retracted with respect to a lower end (32) of the main frame (21), at least one wheel (62, 63) secured relative to the main frame (21) so that the truck 20 is able to be wheeled about, a motor (70), a controller (74) coupled to the motor (70) for enabling a user to control the operation of the motor (70), and a flexible linkage (77) coupling the motor (70), main frame (21) and sub-frame (22) together such that the motor (70) is operable to move the linkage (77) to thereby extend or retract the sub-frame (22).
Claims20
A hand truck for transporting a load, the hand truck comprising a sub-frame with a foot portion extending therefrom so that the sub-frame is able to support the load, a main frame engaged with the sub-frame such that the sub-frame is able to be extended and retracted with respect to a lower end of the main frame, at least one wheel secured relative to the main frame so that the truck is able to be wheeled about, a motor, a controller coupled to the motor for enabling a user to control the operation of the motor, and a flexible linkage coupling the motor, relative to the sub-frame such that the motor is operable to move the linkage to thereby extend and retract the sub-frame so that the foot portion is configured for both a lowering and an elevating relative to said wheel,
- wherein one end of the flexible linkage is directly connected to the sub-frame, and another end of the linkage is also directly connected to the sub-frame.
The hand truck of claim l, wherein the sub-frame is telescopically received by the main frame.
Dependencies are inferred from the claim text.