Endless belt power transmission systems or components – Positive drive pulley or guide roll – Having belt-engaging surfaces on discrete circumferentially...
Patent
1990-09-26
1991-11-26
Bui, Thuy M.
Endless belt power transmission systems or components
Positive drive pulley or guide roll
Having belt-engaging surfaces on discrete circumferentially...
F16H 900
Patent
active
050679317
ABSTRACT:
A sprocket wheel having replaceable teeth includes a wheel body, a plurality of replaceable teeth, and fixing members to fix each tooth to the wheel body. In the outer periphery of the wheel body are formed a plurality of notches regularly spaced from each other. Each replaceable tooth consists of a central portion which forms a tooth groove on the upper surface and which fits into the notch of the wheel body, and two flanges formed in right and left sides of the central portion. The right and the left flanges can be formed ahead of and behind the central portion of the tooth respectively. Each fixing member can consist of an internal thread formed in each flange of the tooth, a bolt hole formed in each side of the notch, and a bolt having a head thinner than the flange.
REFERENCES:
patent: 3996814 (1976-12-01), Westlake
patent: 4531926 (1985-07-01), Reeves, Jr.
Nagamatsu Hiromitsu
Ueda Seitaro
Bui Thuy M.
Hitachi Metals Ltd.
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