Endless belt power transmission systems or components – Pulley engages exterior surface of belt
Patent
1992-11-20
1993-11-16
Bui, Thuy M.
Endless belt power transmission systems or components
Pulley engages exterior surface of belt
474137, F16H 700
Patent
active
052618609
ABSTRACT:
A drive apparatus, able to perform positioning of a driven object to be driven with a high degree of accuracy, sufficiently obtain the desired thrust even when using the low output of a driving source such as a motor, and allow the speed of movement of the driven object to be set as desired, is provided. This drive device, wherein a first belt-shaped member, to which driving force is applied with a driving source such as a motor, is engaged with a driven object to move said driven object, is equipped with a speed reduction function that functions by mounting a rotating body having a large diameter portion and a small diameter portion onto said driven object, engaging this large diameter portion with a belt-shaped member, stretching another belt-shaped member parallel to said belt-shaped member, engaging this belt-shaped member with the above-mentioned small diameter portion, and setting the ratio of the diameters of the above-mentioned large diameter and small diameter portions as desired.
REFERENCES:
patent: 840729 (1907-01-01), Willson, Jr.
patent: 3895544 (1975-07-01), Suzaki
patent: 4068535 (1978-01-01), Sheets
Bui Thuy M.
Nippon Thompson Co. Ltd.
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