Title: Tractor for agriculture

Abstract: A tractor for agriculture comprising an engine, a hydraulic stepless speed change mechanism having an output shaft, an input shaft connecting the engine with the hydraulic stepless speed change mechanism and having an extended portion, a PTO shaft connected in association with the extended portion, a running device, a transmission shaft connected in association with the output shaft, and a transmission change mechanism disposed at an intermediate portion of the transmission shaft, said transmission change mechanism being connectable and disconnectable of power transmission from the output shaft to the running device and capable of power transmission from the extended portion to the running device when said power transmission from the output shaft to the running device is cut. The tractor may be running even if the hydraulic stepless speed change mechanism is in trouble.

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Inventors: Itatani, Hiroshi (Sakai, JP)
Tone, Masatsugu (Hashimoto, JP)
Kurohara, Kazuaki (Sakai, JP)

Application Number: 06/233550
Filing Date: 1981-02-12
Publication_date: 1983-02-15
Assignee: KUBOTA LTD (JP)

Primary Class(es): 74/15.400 74/665F, 74/15.630, 74/730.100
Other Classes: B60K17/28; F16H3/32; F16H47/02; B60K17/00; F16H3/02; F16H47/00; B60K17/06
US Patent Ref:

3131580	May, 1964	Forster	74/156
3196697	July, 1965	Ritter	74/156.3
3922931	December, 1975	Osujyo et al.	74/152
4031762	June, 1977	Shellberg	74/156.3

Other Refs: DE1897769JP50-33283

April, 1964
December, 1974

Primary Examiner: Peters Jr., Joseph F.
Assistant Examiner: Weaver, Ross
Attorney: Greigg, Edwin E.

Parent Case Data:

This is a continuation, of application Ser. No. 26,157 filed Apr. 2, 1979, now abandoned.