JPS5667630A - Running speed changing apparatus for tractor - Google Patents

Running speed changing apparatus for tractor

Info

Publication number
JPS5667630A
JPS5667630A JP14487079A JP14487079A JPS5667630A JP S5667630 A JPS5667630 A JP S5667630A JP 14487079 A JP14487079 A JP 14487079A JP 14487079 A JP14487079 A JP 14487079A JP S5667630 A JPS5667630 A JP S5667630A
Authority
JP
Japan
Prior art keywords
speed
motor
rod
speed change
detecting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP14487079A
Other languages
Japanese (ja)
Other versions
JPS6152014B2 (en
Inventor
Norimi Nakamura
Osami Hashimoto
Shigeaki Okuyama
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kubota Corp
Original Assignee
Kubota Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kubota Corp filed Critical Kubota Corp
Priority to JP14487079A priority Critical patent/JPS5667630A/en
Publication of JPS5667630A publication Critical patent/JPS5667630A/en
Publication of JPS6152014B2 publication Critical patent/JPS6152014B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Arrangement Or Mounting Of Control Devices For Change-Speed Gearing (AREA)
  • Arrangement And Driving Of Transmission Devices (AREA)

Abstract

PURPOSE: To favorably effect radical speed change in a wide range, by connecting a driving mechanism and a speed change apparatus operated by it through a motor driven friction gearing mechanism such that they can be relatively displaced.
CONSTITUTION: The first operation arm 17 is coactively connected through a rod 21 with a swingable arm 20 that is swingably operated by a motor 19 and the motor 19 is automatically rotated forward or backward in a manner that, on a detected result of the first speed detecting apparatus 22 for detecting a revolutional speed of a shaft 1a bearing front wheel 1 as an output revolutional speed of a stepless speed change gear of the front wheels, a detected value of the second speed detecting apparatus 23 for detecting an output revolutional speed of a rear wheel driving motor 12 becomes a predetermined relation for the value of the apparatus 22. Since an operation arm 18 is connected to a lever 14 through an expandable rod 24 that comprises the first rod 24a and the second rod 24b with them engaged and connected expandably each other within a definite short range, when the lever 14 is operated radically in a wide range, speed change is desirably corrected by the motor 19.
COPYRIGHT: (C)1981,JPO&Japio
JP14487079A 1979-11-06 1979-11-06 Running speed changing apparatus for tractor Granted JPS5667630A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14487079A JPS5667630A (en) 1979-11-06 1979-11-06 Running speed changing apparatus for tractor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14487079A JPS5667630A (en) 1979-11-06 1979-11-06 Running speed changing apparatus for tractor

Publications (2)

Publication Number Publication Date
JPS5667630A true JPS5667630A (en) 1981-06-06
JPS6152014B2 JPS6152014B2 (en) 1986-11-11

Family

ID=15372295

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14487079A Granted JPS5667630A (en) 1979-11-06 1979-11-06 Running speed changing apparatus for tractor

Country Status (1)

Country Link
JP (1) JPS5667630A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04132256U (en) * 1991-05-28 1992-12-07 カヤバ工業株式会社 Continuously variable transmission operating mechanism

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04132256U (en) * 1991-05-28 1992-12-07 カヤバ工業株式会社 Continuously variable transmission operating mechanism

Also Published As

Publication number Publication date
JPS6152014B2 (en) 1986-11-11

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