US 6,641,456 B2Granted

Independent wheel arrangement for toy vehicle

OwnerJar Chen Wanginventor

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Abstract

A toy vehicle incorporates with an independent wheel arrangement which includes a supporting leg having an upper inserting portion. The toy vehicle includes a vehicle frame having a through hole to define a top and bottom securing surfaces. The inserting portion of the supporting leg has a base portion and a shank portion to define a biasing shoulder therebetween. The inserting portion of the supporting leg is inserted into the through hole of the vehicle frame until the biasing shoulder is biased against the bottom securing shoulder of the through hole. A wheel is rotatably mounted at a bottom portion of the supporting leg. A locker member is securely attaching to the shank portion of the supporting leg with the through hole and biased against the top securing shoulder of the through hole, so as to securely mount the supporting leg to the vehicle frame.

Claims31

Dependent claims

A toy vehicle, comprising:

a vehicle frame having two through holes each provided a top securing shoulder and a bottom securing shoulder at two opening ends of said through hole;
a seat frame mounted on said vehicle frame and positioned above said through hole;
a steering unit, comprising a driving wheel, for steering a movement of said vehicle frame;
and
two independent wheel arrangements provided at two outer sides of said vehicle frame, each comprising:
a supporting leg having an upper inserting portion and a bottom portion, wherein said inserting portion of said supporting leg has a base portion and a shank portion upwardly extended therefrom to define a biasing shoulder radially extended between said base portion and said shank portion, wherein said inserting portion of said supporting leg is fittedly inserted into said respective through hole until said biasing shoulder is biased against said bottom securing shoulder of said through hole, so as to hold said supporting leg within said through hole in position;
a wheel rotatably mounted at said bottom portion of said supporting leg;
a locker member securely attaching to said shank portion of said supporting leg with said through hole until said locker member is biased against said top securing shoulder of said tubular, so as to securely mount said supporting leg to said vehicle frame;
and
a supporting shaft downwardly extended from said seat frame wherein a bottom portion of said supporting shaft is coaxially engaged with said locker member so as to substantially support said supporting leg to said vehicle frame.

7 more elements

An independent wheel arrangement of a toy vehicle comprising a vehicle frame, comprising:

a top securing shoulder and a bottom securing shoulder of said toy vehicle, wherein a through hole is defined between said a top securing shoulder and said bottom securing shoulder;
the seat frame mounted on said vehicle frame and positioned above said through hole;
a supporting leg having an upper inserting portion and a bottom portion, wherein said inserting portion of said supporting leg has a base portion and a shank portion upwardly extended therefrom to define a biasing shoulder radially extended between said base portion and said shank portion, wherein said inserting portion of said supporting leg is fittedly inserted into said through hole until said biasing shoulder is biased against said bottom securing shoulder in order to hold said supporting leg within said through hole in position;
a wheel rotatably mounted at said bottom portion of said supporting leg;
and
a locker member securely attaching said shank portion of said supporting leg with said through hole until said locker member is biased against said top securing shoulder for securely mounting said supporting leg to the vehicle frame, wherein said locker member has a coaxial threaded hole for screwing onto said shank portion of said supporting leg at an outer surface thereof so as to fasten said inserting portion of said supporting leg with said through hole for locking up said supporting leg with the vehicle frame.

3 more elements

An independent wheel arrangement of a toy vehicle comprising a vehicle frame and a seat frame mounted on the vehicle frame, comprising:

a top securing shoulder and a bottom securing shoulder of said toy vehicle, wherein a through hole is defined between said a top securing shoulder and said bottom securing shoulder;
a supporting leg having an upper inserting portion and a bottom portion, wherein said inserting portion of said supporting leg has a base portion and a shank portion upwardly extended therefrom to define a biasing shoulder radially extended between said base portion and said shank portion, wherein said inserting portion of said supporting leg is fittedly inserted into said through hole until said biasing shoulder is biased against said bottom securing shoulder in order to hold said supporting leg within said through hole in position;
a wheel rotatably mounted at said bottom portion of said supporting leg;
and
a locker member securely attaching said shank portion of said supporting leg with said through hole until said locker member is biased against said top securing shoulder for securely mounting said supporting leg to the vehicle frame, wherein said locker member has an upper enlarged head portion and a lower outer threaded tail portion wherein said tail portion of said locker member is arranged to securely screwing into said shank portion of said supporting leg at an inner surface thereof until said head portion of said locker member is biased against said top securing shoulder of said through hole, so as to fasten said inserting portion of said supporting leg with said through hole.

2 more elements

An independent wheel arrangement of a toy vehicle comprising a vehicle frame and a seat frame mounted on the vehicle frame, comprising:

a top securing shoulder and a bottom securing shoulder of said toy vehicle, wherein a through hole is defined between said a top securing shoulder and said bottom securing shoulder;
a supporting leg having an upper inserting portion and a bottom portion, wherein said inserting portion of said supporting leg has a base portion and a shank portion upwardly extended therefrom to define a biasing shoulder radially extended between said base portion and said shank portion, wherein said inserting portion of said supporting leg is fittedly inserted into said through hole until said biasing shoulder is biased against said bottom securing shoulder in order to hold said supporting leg within said through hole in position;
a wheel rotatably mounted at said bottom portion of said supporting leg;
a locker member securely attaching said shank portion of said supporting leg with said through hole until said locker member is biased against said top securing shoulder for securely mounting said supporting leg to the vehicle frame;
and
a reinforcing unit which comprises at least a reinforcing ridge integrally and radially extended from said inserting portion of said supporting leg and at least a ridge holder integrally and radially formed at said through hole wherein said reinforcing ridge is fittedly received in said ridge holder when said inserting portion of said supporting leg is inserted into said through hole.

3 more elements

Dependencies are inferred from the claim text.