Back to results
US 8,033,348 B1Granted
Self-propelled child stroller
OwnerHemin Parkheinventor
Life of this patent
Estimating the term…
Abstract
A self-propelled stroller apparatus comprising a motor, a drive train, a braking mechanism, and a set of hand controls, is herein disclosed. Two (2) rear wheels of the stroller are driven by a battery-powered motor utilizing a chain-driven drive train. The motor is controlled by a handlebar-mounted control lever, which when pushed motivates the stroller in a forward direction. During times when the motor and drive train are deactivated, the stroller may be pushed in a normal manner. The apparatus is additionally provided with an emergency braking system to stop or securely park the stroller. The battery is recharged by a normal household outlet and an electrical cord when the stroller is not in use.
Claims17
A folding stroller comprising:
- said stroller, comprising a hinged and foldable tubular frame supporting a seat, a pair of front wheels pivotally attached thereto a lower frontal portion thereof said frame, a pair of rear wheels interconnected by an axle shaft and attached thereto a lower rear portion thereof said frame, a tray providing a frontal secure restraint thereto an occupant residing therein said seat, a foot rest located thereabove said pair of front wheels, and a handlebar attached thereto an upper rear portion thereof said frame;
- a propelling means attachable thereto said stroller for driving said stroller, further comprising:
- an emergency brake assembly;
- a drive assembly in electrical communication therewith said propelling means, further comprising:
- a drive housing, attached to a lower central portion of said frame and providing a protective enclosure for said drive assembly;
- a motor in electrical communication with a controller assembly;
- a motor shaft extending outwardly from said motor;
- a chain and sprocket assembly extending perpendicularly from said axle shaft to said motor shaft and driven by said motor shaft;
- and,
- an electric clutch in electrical communication with said controller assembly mounted to said motor shaft for selectable engagement with said chain and sprocket assembly;
- and,
- said controller assembly for providing a control means thereto said drive assembly;
- wherein an operator activates said propelling means;
- wherein said propelling means propels said stroller;
- wherein when drive assembly is disengaged therefrom said propelling means, said stroller can be operated with a manual means;
- wherein said drive assembly provides a torque means to said axle shaft of said pair of rear wheels;
- wherein said motor drives said motor shaft and said motor shaft drives said chain and sprocket assembly;
- wherein said chain and sprocket assembly drives said axle shaft of said pair of rear wheels and propels said stroller when engaged with said electric clutch;
- and,
- wherein said manual means is used to propel said stroller when said chain and sprocket assembly is disengaged with said electric clutch.
17 more elements
A folding stroller comprising:
- said stroller, comprising a hinged and foldable tubular frame supporting a seat, a pair of front wheels pivotally attached thereto a lower frontal portion thereof said frame, a pair of rear wheels interconnected by an axle shaft and attached thereto a lower rear portion thereof said frame, a tray providing a frontal secure restraint thereto an occupant residing therein said seat, a foot rest located thereabove said pair of front wheels, a handlebar attached thereto an upper rear portion thereof said frame, an adjustable and removable harness for securing an occupant therein said seat, a sunshade attached thereto an upper portion thereof said frame, and an insect screen deployable therefrom said sunshade;
- a drive assembly attachable thereto said stroller for driving said stroller;
- a controller assembly in electrical communication therewith said drive assembly for providing a control means thereto said drive assembly;
- an emergency brake assembly for providing a braking means thereto said drive assembly;
- a drive housing, comprising a rugged, generally cylindrical body attached to a lower central portion of said frame, with a portion encompassing said axle shaft between said pair of rear wheels and providing a protective enclosure for said drive assembly;
- a motor in electrical communication with said controller assembly;
- a motor shaft extending outwardly from said motor;
- a chain and sprocket assembly extending perpendicularly from said axle shaft to said motor shaft and driven by said motor shaft;
- and,
- an electric clutch in electrical communication with said controller assembly mounted to said motor shaft for selectable engagement with said chain and sprocket assembly;
- wherein an operator activates said controller assembly;
- wherein when drive assembly is disengaged, said stroller can be operated with a manual means;
- wherein said drive assembly provides a torque means to said axle shaft of said pair of rear wheels;
- wherein said motor drives said motor shaft and said motor shaft drives said chain and sprocket assembly;
- wherein said chain and sprocket assembly drives said axle shaft of said pair of rear wheels and propels said stroller when engaged with said electric clutch;
- and,
- wherein said manual means is used to propel said stroller when said chain and sprocket assembly is disengaged with said electric clutch.
14 more elements
Dependencies are inferred from the claim text.