Self-powered folding golf cart

Details Self-powered folding golf cart Self-powered folding golf cart

1976-08-25

1978-08-15

Peters, Jr., Joseph F.

Motor vehicles

Power

Electric

180 65, 180 65R, 280DIG5, B62D 5104

Patent

active

041065832

ABSTRACT:
A power-assisted manually operated golf bag carrying cart is disclosed. The cart features a foldable tricycle support frame having parallel drive wheels, which can be maintained in parallel over a range of adjustment, and independently-powered direct drive d.c. motors coupled to shock isolated wheels. A control scheme is described wherein a hand grip with a mechanically isolated continuously variable throttle provides control signals to a power-control circuit providing independent direct drive to each of the drive wheels. Power supplied by variable pulse width pulse train developing intermittent high peak torque yet low average torque in the normal duty cycle range drives the d.c. motors. The motor drive scheme provides an electrical limited slip differential which permits easy turning without undesirable power dissipation.

REFERENCES:
patent: 3691791 (1972-09-01), Yoshii
patent: 3818292 (1974-06-01), Berman
patent: 3820617 (1974-06-01), Groff
patent: 3901337 (1975-08-01), Cragg

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