Bicycle freewheel wrench pry adapter

Details Bicycle freewheel wrench pry adapter Bicycle freewheel wrench pry adapter

1981-01-23

1983-02-22

Jones, Jr., James L.

Metal working

Method of mechanical manufacture

Disassembling

29283, 81 90C, 411435, B23P 1900

Patent

active

043744532

ABSTRACT:
A bicycle freewheel wrench pry adapter for use with a freewheel wrench in removing a freewheel and its associated drive sprocket assembly from the bicycle axle is generally U-shaped and includes a channel in the base of the U opposite the legs of the U which fits the boss of the freewheel wrench engaged with the freewheel. The adapter includes a recess in the root of each leg of the U to assist in retaining a pry inserted between the legs for applying force through the freewheel wrench to the freewheel. The freewheel wrench pry adapter channel includes stress reliefs in the corners of the channel to avoid excessive stress concentrations in such corners which could induce breakage of the freewheel wrench pry adapter.

REFERENCES:
patent: 874543 (1907-12-01), Scheuer
patent: 1263202 (1918-04-01), Brown
patent: 2553813 (1951-05-01), Dobrick
patent: 2968206 (1961-01-01), Omoto
patent: 3319509 (1967-05-01), Romeo
patent: 4059033 (1977-11-01), Johnson

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