Back to results
US 5,489,000 AGranted
Motorized wheelbarrow
OwnerLars Hillbohminventor
Life of this patent
Estimating the term…
Abstract
A motorized wheelbarrow comprises a pan for receiving a load to be transported by the barrow, at least a wheel arranged to bear on the ground and a motor arranged to rotate the wheel for moving the wheelbarrow over the ground. The motor is located under the pan and with its center of gravity in front of a vertical plane including the axle of rotation of the wheel as seen in the direction of movement in the transport position of the wheelbarrow.
Claims4
A motorized wheelbarrow for transporting a load, comprising:
- a frame having forward and rearward ends;
- a pan for receiving the load to be transported, said pan having forward and rearward ends;
- at least one wheel mounted on said frame and arranged to bear on the ground;
- a motor mounted on said frame and arranged under said pan to rotate said wheel and move the wheelbarrow over the ground;
- said frame with both said motor and said wheel mounted thereon constituting a frame assembly and said frame assembly being releasably secured to said pan so as to be separable from said pan as a single integral unit;
- at least one longitudinal member having a handle thereon and being mounted to one of said pan and said frame assembly, said longitudinal member being separable from said frame assembly;
- said pan having a wall inclining forwardly-upwardly towards a front edge thereof for emptying the load upon tilting the wheelbarrow forwardly about an axis being substantially parallel to said wheel axle, said wheel and said motor being arranged under said wall with the motor along said wall and in front of and above said wheel axle when said wheel is rolled across the ground;
- said wall having an underside and said frame being releasably attachable to said underside of said wall of said pan;
- said frame having an elongated member at one of said ends and arranged to enter into engagement with a stop member on said pan for stopping forwardly-upwardly displacement of said frame along said wall, said elongated member extending alongside said underside substantially parallel to said wheel axle and adjacent to one of said ends of said pan when said elongated member is engaged with said stop member on said pan, and the end of said frame opposite said elongated member being arranged to be releasably secured by securing means on said underside of said wall of said pan while said elongated member is in engagement with said stop member, and said stop member being arranged to retain said elongated member in engagement therewith when said end of said frame opposite said elongated member is secured to said pan by said securing means.
6 more elements
A motorized wheelbarrow for transporting a load, comprising:
- a frame having forward and rearward ends;
- a pan for receiving the load to be transported, said pan having forward and rearward ends;
- at least one wheel mounted on said frame and arranged to bear on the ground;
- a motor mounted on said frame and arranged under said pan to rotate said wheel and move the wheelbarrow over the ground;
- said frame with both said motor and said wheel mounted thereon constituting a frame assembly and said frame assembly being releasably secured to said pan so as to be separable from said pan as a single integral unit;
- said wheel having an axle defining an axis of rotation and said motor having a center of gravity located in front of a vertical plane including the axis of rotation of the wheel;
- at least one longitudinal member having a handle thereon and being mounted to one of said pan and said frame assembly, said longitudinal member being separable from said frame assembly;
- said pan having a wall inclining forwardly-upwardly towards a front edge thereof for emptying the load upon tilting the wheelbarrow forwardly about an axis being substantially parallel to said wheel axle, said wheel and said motor being arranged under said wall with the motor along said wall and in front of and above said wheel axle when said wheel is rolled across the ground;
- said wall having an underside and said frame being releasably attachable to said underside of said wall of said pan;
- said frame having an elongated member at one of said ends and arranged to enter into engagement with a stop member on said pan for stopping forwardly-upwardly displacement of said frame along said wall, said elongated member extending alongside said underside substantially parallel to said wheel axle and adjacent to one of said ends of said pan when said elongated member is engaged with said stop member on said pan, and the end of said frame opposite said elongated member being arranged to be releasably secured by securing means on said underside of said wall of said pan while said elongated member is in engagement with said stop member, and said stop member being arranged to retain said elongated member in engagement therewith when said end of said frame opposite said elongated member is secured to said pan by said securing means.
7 more elements
A motorized wheelbarrow for transporting a load, comprising:
- a frame;
- a pan for receiving the load to be transported;
- at least one wheel mounted on said frame and arranged to bear on the ground;
- a motor mounted on said frame below said pan and arranged to rotate said wheel for moving the wheelbarrow over the ground;
- said frame with both said motor and said wheel mounted thereon constituting a frame assembly and said frame assembly being releasably secured to said pan so as to be separable from said pan as a single integral unit;
- two longitudinal members each having a handle thereon and being releasably secured to one of said pan and said frame assembly, said longitudinal members being separable from said frame assembly and extending rearwardly from said pan;
- each of said longitudinal members having an end portion projecting towards the other of said longitudinal members when said longitudinal members are in a secured state on said pan, and one of said end portions is arranged to be at least partially telescopically received in the other of said end portions in said secured state, such that said longitudinal members are mutually separable on separation thereof from said pan by pulling said one of said end portions out of the other of said end portions.
4 more elements
Dependencies are inferred from the claim text.