Claims
- 1. PTO-drive for double-clutch type transmission comprising a double clutch apparatus including:
- a running-travel clutch and a PTO clutch having a PTO transmission shaft, said running-travel and PTO clutches disposed in operative juxtaposition relative to one another;
- a running-travel main shaft drivable from th running-travel clutch;
- a PTO main shaft drivable from the PTO clutch, said running-travel shaft being concentrically disposed within said PTO main shaft;
- travel-transmission shaft means for transmitting engine power from said running-travel main shaft;
- main speed-change means operatively associated with said running-travel main shaft for operatively interconnecting said running-travel main shaft and said travel-transmission shaft means to change running travel speeds, wherein
- said running-travel main shaft, said main speed-change means and said travel-transmission shaft means together establish a travel drive line;
- first and second gear means for being respectively driven by the PTO main shaft and the running-travel main shaft; and
- coupling means movable between a first position for selectively coupling said PTO transmission shaft to said PTO main shaft through said first gear means, and a second position for selectively coupling said PTO transmission shaft to said running-travel main shaft through said second gear means, wherein said running-travel main shaft, said second gear means and said PTO transmission shaft together define a PTO drive line when said coupling means is moved to said second position such that
- operation of said main speed change means to effect speed change through said travel drive line does not affect PTO drive speed through said PTO drive line.
- 2. PTO-drive as claimed in claim 1 wherein the speed reduction ratio of the first gear means is somewhat larger than that of the second gear means.
- 3. PTO-drive as claimed in claim 2, wherein
- said first gear means includes a first gear fixedly secured on the PTO main shaft, and a second gear which meshes with the first gear and which is fitted on the PTO transmission shaft for idling rotation, and wherein
- said second gear means includes a third gear fixedly secured on the running-travel main shaft, and a fourth gear which meshes with the third gear and which is fitted on the PTO transmission shaft for idling rotation.
- 4. PTO-driving as claimed in claim 2, wherein
- the first gear means includes a gear fixedly secured on the PTO main shaft and a sectional gear portion which is engageable in meshing with the gear just now mentioned and which is an integral portion of a shifter gear set fitted on the PTO transmission shaft in splined manner, and wherein
- the second gear means includes a gear fixedly secured on the running-transmission shaft and a sectional gear portion which is engageable in meshing with the gear just now mentioned and which is another integral portion of the said shifter gearset.
Priority Claims (1)
Number |
Date |
Country |
Kind |
56-135622[U] |
Sep 1981 |
JPX |
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Parent Case Info
This is a continuation of application Ser. No. 416,703, filed Sept. 10, 1982, which was abandoned upon the filling hereof.
US Referenced Citations (8)
Continuations (1)
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Number |
Date |
Country |
Parent |
416703 |
Sep 1982 |
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