JPS57167555A - Transmission actuating structure for work vehicle - Google Patents
Transmission actuating structure for work vehicleInfo
- Publication number
- JPS57167555A JPS57167555A JP5450981A JP5450981A JPS57167555A JP S57167555 A JPS57167555 A JP S57167555A JP 5450981 A JP5450981 A JP 5450981A JP 5450981 A JP5450981 A JP 5450981A JP S57167555 A JPS57167555 A JP S57167555A
- Authority
- JP
- Japan
- Prior art keywords
- transmission
- detecting
- output shaft
- speed
- turning speed
- 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.)
- Pending
Links
Landscapes
- Gear-Shifting Mechanisms (AREA)
Abstract
PURPOSE: To prevent occurrence of slippage in a transmission, by shifting the transmission a load and speed reducing position automatically when it is detected that there is fear of causing slippage at a frictional power transmitting section of the transmission along with increasing of load.
CONSTITUTION: The turning speed of an engine output shaft 27 is kept within a prescribed limited range by affording output signals of a first means 21 for detecting the operational conditions of a transmission, a second means 22 for detecting the turning speed of an output shaft 12 of the transmission 7, and a third means 23 for detecting the turning speed of the output shaft 27 of an engine E to a control unit 30. In this state, if the turning speed of the output shaft 12 of transmission 7 becomes lower than a specific range of speed preset in the first detecting means 21, the transmission 7 is shifted to a speed reducing position automatically and in a reversible manner by means of the control unit 30. In addition to the above, there is further provided an automatic control stopping unit 32 which stops automatic control of the transmission 7 by the control unit 30 on the basis of the output of a fourth means 24 for detecting the driving pressure of a motor M.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5450981A JPS57167555A (en) | 1981-04-10 | 1981-04-10 | Transmission actuating structure for work vehicle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5450981A JPS57167555A (en) | 1981-04-10 | 1981-04-10 | Transmission actuating structure for work vehicle |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57167555A true JPS57167555A (en) | 1982-10-15 |
Family
ID=12972603
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5450981A Pending JPS57167555A (en) | 1981-04-10 | 1981-04-10 | Transmission actuating structure for work vehicle |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57167555A (en) |
-
1981
- 1981-04-10 JP JP5450981A patent/JPS57167555A/en active Pending
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