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1. 发明公开

EP4005361A1 HYDRAULIC STEERING DEVICE FOR AGRICULTURAL WORK VEHICLE 审中-实审
公开(公告)号：EP4005361A1
公开(公告)日：2022-06-01
申请号：EP20844791.2
申请日：2020-07-21
申请人： LS Mtron Ltd.
发明人： LEE, Sang Heon
IPC分类号： A01B69/04 , B62D5/06 , B62D5/065
摘要： The present invention relates to a hydraulic steering device for an agricultural work vehicle, the device comprising: a steering pump for supplying working fluid; an automatic steering unit which is connected to the steering pump, and which changes, according to automatic steering performed by a control part, the traveling direction of the agricultural work vehicle by using the working fluid supplied from the steering pump; a manual steering unit which is connected to each of the steering pump and the automatic steering unit, and which changes, according to manual steering performed by the operation of a steering wheel, the traveling direction of the agricultural work vehicle, and a manual switching unit connected to each of the steering pump and the manual steering unit, wherein the manual steering unit is connected to the steering pump through the manual switching unit, the manual switching unit blocks the working fluid supplied from the steering pump so as to prevent same from passing therethrough when automatic steering is performed in a state in which manual steering is not performed, and causes the working fluid supplied from the steering pump to pass therethrough when automatic steering is not performed in a state in which manual steering is not performed or manual steering is performed, and the manual steering unit changes, when manual steering is performed, the traveling direction of the agricultural work vehicle by using the working fluid supplied from the steering pump through the manual switching unit.

2. 发明公开

EP3239562A1 SHIFT ACTUATOR FOR TRACTOR 有权
标题翻译：换挡执行器
公开(公告)号：EP3239562A1
公开(公告)日：2017-11-01
申请号：EP15873682.7
申请日：2015-12-24
申请人： Ls Mtron Ltd.
发明人： LEE, Sang Heon
IPC分类号： F16H63/30 , F16H61/12 , F16H63/42 , B62D49/00
CPC分类号： F16H61/12 , B62D49/00 , F16H59/70 , F16H61/32 , F16H63/30 , F16H63/304 , F16H63/42 , F16H2059/6823 , F16H2061/1212 , F16H2061/1216
摘要： The present invention relates to a shift actuator, comprising: a motor for providing power; a rail which is movable by means of the drive of the motor; a rail sensor for sensing whether the rail is neutral; a position sensor for sensing a displacement of the rail; and a rotation sensor, mounted in the motor, for sensing the number of revolutions of the motor.
摘要翻译：本发明涉及一种换挡致动器，包括：用于提供动力的电动机; 通过电动机的驱动可移动的导轨; 用于感测导轨是否是空档的导轨传感器; 用于感测导轨的位移的位置传感器; 以及安装在电机中的旋转传感器，用于感测电机的转数。

3. 发明公开

EP4371855A2 HYDRAULIC STEERING DEVICE OF AGRICULTURAL WORK VEHICLE 审中-公开
公开(公告)号：EP4371855A2
公开(公告)日：2024-05-22
申请号：EP24169296.1
申请日：2020-07-21
申请人： LS Mtron Ltd.
发明人： LEE, Sang Heon , CHOI, Jong Min
IPC分类号： B62D5/065
CPC分类号： B62D1/22 , B62D5/07 , B62D5/093
摘要： A hydraulic steering device for an agricultural vehicle comprises a steering pump, an automatic steering unit and a manual steering unit. The hydraulic steering device further comprises an automatic blocking unit connected to the automatic steering unit. The hydraulic steering device further comprises an automatic maintaining unit configured to control the automatic blocking unit to cause the working fluid for the automatic steering to pass regardless of whether a manual steering is performed.

4. 发明公开

EP4005360A1 HYDRAULIC STEERING DEVICE OF AGRICULTURAL WORK VEHICLE 审中-实审
公开(公告)号：EP4005360A1
公开(公告)日：2022-06-01
申请号：EP20844179.0
申请日：2020-07-21
申请人： LS Mtron Ltd.
发明人： LEE, Sang Heon , CHOI, Jong Min
IPC分类号： A01B69/04 , B62D5/06 , B62D5/065
摘要： The present invention relates to a hydraulic steering device of an agricultural work vehicle, the hydraulic steering device comprising: a steering pump for supplying a working fluid; an automatic steering unit which is connected to the steering pump and uses the working fluid supplied from the steering pump to change the traveling direction of the agricultural work vehicle when automatic steering is performed by a control unit; a manual steering unit which is connected to the steering pump and uses the working fluid supplied from the steering pump to change the traveling direction of the agricultural work vehicle when manual steering is performed by operating a steering handle; and an automatic cut-off unit which is connected to the automatic steering unit and is for selectively cutting off the supply of the working fluid for the automatic steering to a steering cylinder of the agricultural work vehicle according to whether the manual steering is performed, wherein the automatic cut-off unit allows the working fluid for the automatic steering to be supplied to the steering cylinder, but uses a portion of the working fluid supplied from the steering pump to the manual steering unit to cut off the supply of the working fluid for the automatic steering to the steering cylinder when the manual steering is being performed.

5. 发明公开

EP4374675A2 HYDRAULIC STEERING DEVICE FOR AGRICULTURAL WORK VEHICLE 审中-公开
公开(公告)号：EP4374675A2
公开(公告)日：2024-05-29
申请号：EP24168870.4
申请日：2020-07-21
申请人： LS Mtron Ltd.
发明人： LEE, Sang Heon
IPC分类号： A01B69/04
CPC分类号： B62D5/093 , B62D1/22 , B62D5/07 , A01B69/007 , A01B69/008
摘要： The present invention relates to a hydraulic steering device for an agricultural vehicle. The hydraulic steering device comprises a steering pump, an automatic steering unit, a manual steering unit, a manual changing unit, an automatic blocking unit and an automatic maintaining unit to control the automatic blocking unit. The manual changing unit blocks passage of the working fluid supplied from the steering pump when the automatic steering is performed in a state in which the manual steering is not performed and causes the working fluid supplied from the steering pump to pass in both cases when the automatic steering is not performed in the state in which the manual steering is not performed and when the manual steering is performed. The manual steering unit changes the traveling direction of the agricultural vehicle using the working fluid supplied from the steering pump when the manual steering is performed.

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