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1. 发明专利

JP5181772B2 Work vehicle 有权
公开(公告)号：JP5181772B2
公开(公告)日：2013-04-10
申请号：JP2008084121
申请日：2008-03-27
申请人：井関農機株式会社
发明人：友明近藤 , 義典土居 , 昭彦岡
IPC分类号： F16H61/42 , F16H61/40 , F16H61/4069 , F16H61/431 , F16H61/438 , F16H61/439
摘要： PROBLEM TO BE SOLVED: To solve the first problem wherein the movable swash plate is turned in good response to and following shift operation of a shift lever even if the temperature of working oil in an HST changes in the running speed control of a hydraulic continuously variable transmission, and the second subject that the engine is prevented from stopping due to an overload at the time of high speed running or high speed rotation. SOLUTION: The utility vehicle is provided with an actuator 114 which turns the trunnion shaft of the HST1 in interlock with operation of a shift operation member 5. The vehicle is provided with a shifting sensor 103 for detecting the shift operation speed of the shift operation member 5 and a trunnion sensor 105 for detecting the turning speed of the trunnion shaft. When the shifting speed of the shift operation member 103 and the turning speed of the trunnion sensor 105 do not match each other properly, the driving force of the actuator 114 is changed to correct such an error in a next shift operation. COPYRIGHT: (C)2010,JPO&INPIT

2. 发明专利

JP5262438B2 Work vehicle 有权
公开(公告)号：JP5262438B2
公开(公告)日：2013-08-14
申请号：JP2008218189
申请日：2008-08-27
申请人：井関農機株式会社
发明人：徹司村上 , 昭彦岡
IPC分类号： F16H47/02 , B60K17/06 , B60K17/10 , F02D29/00 , F16H59/04 , F16H59/44 , F16H59/68 , F16H61/02
摘要： PROBLEM TO BE SOLVED: To provide a working vehicle capable of smoothly changing speed even when switching a hydraulic clutch from a low speed side to a high speed side, capable of preventing rapid load fluctuation and reduction of rotating speed of an engine, and capable of preventing an engine stall. SOLUTION: When shifting operation from a low speed side hydraulic clutch 52 selecting the third speed to a high speed side hydraulic clutch 51 selecting the fourth speed is performed, the vehicle speed at that time is stored, and when the hydraulic clutch 52 is disengaged and the hydraulic clutch 51 is operated, a turning angle of a trunnion shaft 30 is controlled to have a speed same with the stored vehicle speed, and then, the hydraulic clutch 51 is connected, and the hydraulic pressure can be smoothly changed so that the turning angle of the trunnion shaft 30 is changed to a control position where a forward and backward pedal 9 is stepped down. Therefore, the hydraulic pressure change in switching of the clutches between the hydraulic clutches 51 and 52 is slowly controlled, and thereby, the vehicle speed change accompanied by shifting operation can be smoothly performed. COPYRIGHT: (C)2010,JPO&INPIT

3. 发明专利

JP3612789B2 The collector of the lawn mower 失效
公开(公告)号：JP3612789B2
公开(公告)日：2005-01-19
申请号：JP13213695
申请日：1995-05-30
申请人：井関農機株式会社
发明人：昭彦岡 , 傑岡元 , 悟志松木 , 和加雄榎本
IPC分类号： A01D34/63

4. 发明专利

JP5433982B2 Prime mover unit air cooling structure of the multi-purpose work vehicle 有权
公开(公告)号：JP5433982B2
公开(公告)日：2014-03-05
申请号：JP2008139734
申请日：2008-05-28
申请人：井関農機株式会社
发明人：昭彦岡 , 友明近藤
IPC分类号： B60K11/06 , F01P11/08 , F01P11/10

5. 发明专利

JP5087826B2 The tractor 有权
公开(公告)号：JP5087826B2
公开(公告)日：2012-12-05
申请号：JP2005218809
申请日：2005-07-28
申请人：井関農機株式会社
发明人：昭彦岡 , 浩二小山
IPC分类号： F16H61/435 , F16H61/42 , F16H61/437

6. 发明专利

JP4788489B2 Transmission of the front mower 有权
公开(公告)号：JP4788489B2
公开(公告)日：2011-10-05
申请号：JP2006168914
申请日：2006-06-19
申请人：井関農機株式会社
发明人：昭彦岡 , 和加雄榎本 , 英和辻
IPC分类号： A01B63/108 , A01D34/76

7. 发明专利

JP5540594B2 Prime mover unit air cooling structure of the multi-purpose work vehicle 有权
公开(公告)号：JP5540594B2
公开(公告)日：2014-07-02
申请号：JP2009177640
申请日：2009-07-30
申请人：井関農機株式会社
发明人：昭彦岡
IPC分类号： B60K11/06

8. 发明专利

JP5141515B2 Work vehicle 有权
公开(公告)号：JP5141515B2
公开(公告)日：2013-02-13
申请号：JP2008303879
申请日：2008-11-28
申请人：井関農機株式会社
发明人：友明近藤 , 義典土居 , 昭彦岡
IPC分类号： F16H61/42

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