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US 2006/0213699 A1Published application
Method for driving wheel-chair
OwnerMei-Ying Lininventor
Life of this patent
Estimating the term…
Abstract
A wheel-chair is easily controlled to move and turn by a left large wheel and a right large wheel. The large wheels have different rolling speeds, such as a full speed and a reduced speed, and different rolling directions, such as rolling forward and rolling backward.
Claims17
A method for driving a wheel-chair, comprising steps of:
- (a) deposing a first motor on a first large wheel of a wheel-chair and a second motor on a second large wheel of said wheel-chair;
- (b) by using a first output shaft of said first motor rotating under a certain velocity in a first direction and a second output shaft of said second motor rotating under said certain velocity in a second direction, making said first large wheel and said second large wheel to roll under said certain velocity, each of said first direction and said second direction being selected from a group consisting of a forward direction and a reverse direction, each of said rolling of said first large wheel and said rolling of said second large wheel being selected from a group consisting of a forward rolling and a backward rolling, said forward rolling being driven by said rotating in said forward direction, said backward rolling being driven by said rotating in said reverse direction;
- and
- (c) moving and/or turning said wheel-chair through said rolling of said first large wheel and said rolling of said second large wheel, said moving and/or turning of said wheel-chair comprising controlled movements of:
- (i) moving forward by said first large wheel and said second large wheel both under said certain velocity of a forward rolling;
- (ii) moving backward by said first large wheel and said second large wheel both under said certain velocity of a backward rolling;
- (iii) turning left by said first large wheel under said certain velocity of a backward rolling and said second large wheel under said certain velocity of a forward rolling;
- (iv) turning right by said first large wheel under said certain velocity of a forward rolling, and said second large wheel under said certain velocity of a backward rolling,
- wherein said wheel-chair has an electrical control system;
- and
- wherein said electrical control system has a central processing unit (CPU).
8 more elements
A method for driving a wheel-chair, comprising steps of:
- (a) deposing a first motor on a first large wheel of a wheel-chair and a second motor on a second large wheel of said wheel-chair;
- (b) by using a first output shaft of said first motor rotating under a first velocity in a first direction and a second output shaft of said second motor rotating under a second velocity in a second direction, making said first large wheel and said second large wheel to roll under said first velocity and said second velocity respectively, each of said first velocity and said second velocity being selected from a group consisting of a certain velocity and a reduced velocity, each of said first direction and said second direction being selected from a group consisting of a forward direction and a reverse direction, said rolling of said first large wheel and said rolling of said second large wheel being selected from a group consisting of a forward rolling and a backward rolling, said forward rolling being driven by said rotating in said forward direction, said backward rolling being driven by said rotating in said reverse direction;
- and
- (c) moving and/or turning said wheel-chair by said rolling of said first large wheel and said rolling of said second large wheel, said moving and/or turning of said wheel-chair comprising controlled movements of:
- (i) moving left forward by said first large wheel under said reduced velocity of said forward rolling and said second large wheel under said certain velocity of said forward rolling;
- (ii) moving right forward by said first large wheel under said certain velocity of said forward rolling and said second large wheel under said reduced velocity of said forward rolling;
- (iii) moving left backward by said first large wheel under said reduced velocity of said backward rolling and said second large wheel under said certain velocity of said backward rolling;
- and
- (iv) moving right backward by said first large wheel under said certain velocity of said backward rolling and said second large wheel under said reduced velocity of said backward rolling,
- wherein said wheel-chair has an electrical control system;
- and
- wherein said electrical control system has a CPU.
9 more elements
Dependencies are inferred from the claim text.