Bicycle pedal crank dismounting device

Details Bicycle pedal crank dismounting device Bicycle pedal crank dismounting device

1993-08-23

1994-11-15

Marmor, Charles A.

Machine element or mechanism

Elements

Cranks and pedals

29239, 294261, 295251, 81436, G05G 114

Patent

active

053637216

ABSTRACT:
A bicycle pedal crank dismounting device for dismounting a bicycle pedal crank, comprised of a hollow screw member and a stop rod, the screw member having a hexagonal hole on one end, an expanded bottom hole on an opposite end, and an inner thread linked between, the stop rod being fastened in the expanded bottom hole on the screw member by a C-shaped retainer ring, whereby the crank is dismounted by driving the screw member into the crew hole on the crank with the stop rod stopped against the bottom bracket bearing axle after the crank lock screw was removed, and then driving the crank lock screw into the inner thread of the screw member to turn the crank out of the bottom bracket bearing axle in the reversed direction.

REFERENCES:
patent: 1753780 (1930-04-01), Fisher
patent: 3740814 (1973-06-01), Marshall
patent: 5170548 (1992-12-01), Ramirez
patent: 5233741 (1993-08-01), Maynard

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