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US 4,304,141 AGranted
Tractor power take-off system
AssigneeKubota Corporation
InventorsMasatsugu Tone, Yasuhisa Matsushita
Life of this patent
Estimating the term…
Abstract
In a tractor power take-off system in which first and second PTO shafts are disposed in the transmission case, the transmission case has at the bottom wall thereof an opening for taking off power to the second PTO shaft and there is disposed a PTO gear speed-change mechanism commonly used for both the first and second PTO shafts. The PTO gear speed-change mechanism has a PTO speed-change shift gear meshed all the times with a large-width speed-change gear for transmitting power to the second PTO shaft.
Claims5
A tractor power take-off system comprising;
- a transmission case (3) having at the lower portion thereof an opening (27),
- a first PTO shaft (13) disposed at the rear end of said transmission case (3),
- first PTO intermediate shaft means disposed at the lower portion of said transmission case (3) so as to transmit power to said first PTO shaft (13),
- a PTO gear speed-change mechanism (16) to change the speed of output from a prime mover to transmit thus changed output to said first PTO intermediate shaft means, said mechanism (16) having a PTO speed-change shift gear (24, 29) disposed on said first PTO intermediate shaft means,
- a lower PTO transmission case (14) attached to said opening (27),
- a second PTO shaft (15) disposed at said lower PTO transmission case (14), and
- a large-width speed-change gear (23) meshed with said PTO speed-change shift gear (24, 29) to transmit power from said PTO speed-change shift gear (24, 29) to said second PTO shaft (15).
4 more elements
Dependencies are inferred from the claim text.