Endless belt power transmission systems or components – Plural belts or plural output loads – Plural belts in series via countershaft
Patent
1986-05-12
1988-01-26
Leppink, James A.
Endless belt power transmission systems or components
Plural belts or plural output loads
Plural belts in series via countershaft
56 113, 74478, 192 13A, F16H 702
Patent
active
047214945
ABSTRACT:
A drive transmission structure for a tractor comprising a belt drive system for transmitting power from an engine output shaft to a transmission having a brake mechanism. The belt drive system includes a belt type stepless change speed mechanism having a split pulley assembly and a swing device for swinging the split pulley assembly toward the engine output shaft and the transmission, a first belt for transmitting the power from the engine output shaft to the split pulley assembly, and a second belt for transmitting the power from the split pulley assembly to the transmission. The pulley assembly defines two split pulley sections for engaging the first and second belts, respectively. A control device is provided to change power transmission ratios by actuating the swing device. Further, a tension pulley type clutch mechanism is provided to act on the first belt or the second belt. The brake mechanism and the tension pulley type clutch mechanism are controlled by the clutch and brake control mechanism.
REFERENCES:
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patent: 3319731 (1967-05-01), Kenkel
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patent: 4037695 (1977-07-01), Welck
patent: 4248331 (1981-02-01), Behrens
patent: 4285419 (1981-08-01), Anderson
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Bando Niro
Hayashi Tetsuaki
Ikeda Fumihiro
Itatani Hiroshi
Kurohara Kazuaki
Kubota Ltd.
Leppink James A.
Melius Terry Lee
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