公开(公告)号：US08127872B2

公开(公告)日：2012-03-06

申请号：US12569150

申请日：2009-09-29

申请人： Takuya Inamori ,  Hisao Mukai ,  Yushi Matsuzaki ,  Susumu Umemoto ,  Akiyoshi Ono ,  Akira Hiwatashi

发明人： Takuya Inamori ,  Hisao Mukai ,  Yushi Matsuzaki ,  Susumu Umemoto ,  Akiyoshi Ono ,  Akira Hiwatashi

IPC分类号： B60K17/28

CPC分类号： B60K25/00

摘要： A transmission device for a work vehicle, comprising a travel drive system for transmitting engine power to a travel device; an implement drive system for transmitting engine power to an external power take-off shaft; braking operation tools for a braking operation; a stop operation mechanism provided to the travel drive system and capable of interrupting the transmission of power to the travel device; and a hydraulically operated PTO clutch for interrupting the transmission of power to the external power take-off shaft, the PTO shaft being provided to the implement drive system; wherein the stop operation mechanism and the PTO clutch are linked with the braking operation tools so that the stop operation mechanism is operated to a power transmission stopping position and the PTO clutch is disengaged along with a pressing operation of the braking operation tools, and the PTO clutch is engaged along with a press-releasing operation of the braking operation tools; and an operation timing is set so that the PTO clutch is disengaged after traveling is detected to have stopped when the braking operation tools are operated in the pressing direction, and that the PTO clutch is engaged before traveling is started when the braking operation tools are operated in the press-releasing direction.

摘要翻译： 一种用于工作车辆的传动装置，包括用于将发动机功率传递给行驶装置的行驶驱动系统; 用于将发动机功率传递到外部动力输出轴的工具驱动系统; 用于制动操作的制动操作工具; 停止操作机构，其设置在所述行驶驱动系统上并且能够中断向行驶装置传递动力; 以及液压操作的PTO离合器，用于中断向外部动力输出轴的动力传递，PTO轴被提供到工具驱动系统; 其中，停止操作机构和PTO离合器与制动操作工具连接，使得停止操作机构被操作到动力传递停止位置，并且PTO离合器与制动操作工具的按压操作一起分离，并且PTO 离合器与制动操作工具的压力释放操作一起接合; 并且设定操作定时，使得当制动操作工具沿按压方向被操作时检测到行驶被停止之后，PTO离合器脱离，并且当行驶时PTO离合器接合，当制动操作工具被操作时开始 在压力释放方向。

公开(公告)号：US20110178684A1

公开(公告)日：2011-07-21

申请号：US12968639

申请日：2010-12-15

申请人： Susumu Umemoto ,  Hisao Mukai ,  Nobushige Ichikawa ,  Takuya Inamori ,  Yushi Matsuzaki

发明人： Susumu Umemoto ,  Hisao Mukai ,  Nobushige Ichikawa ,  Takuya Inamori ,  Yushi Matsuzaki

IPC分类号： B60W10/10 ,  F16H39/00 ,  B60W30/18

CPC分类号： B60W10/196 ,  B60W10/101 ,  B60W2510/0638 ,  F02D31/00 ,  F16H61/421 ,  F16H61/431 ,  F16H61/47 ,  F16H2059/363 ,  F16H2059/366 ,  F16H2061/6615 ,  Y10T477/621 ,  Y10T477/688

摘要： A speed change system for work vehicle having a continuously variable transmission device selects a first change gear ratio which is set larger than a smallest change gear ratio, when an engine rotational speed is a first set rotational speed which is set equal or close to an idling rotational speed of an engine; retains the change gear ratio of the continuously variable transmission device at the smallest change gear ratio, when the engine rotational speed is equal to or above a second set rotational speed set on a high-speed side relative to the first set rotational speed; and makes the change gear ratio of the continuously variable transmission device larger between the first change gear ratio and the smallest change gear ratio, as the engine rotational speed at that moment becomes lower, when the engine rotational speed is between the first and second set rotational speeds.

摘要翻译： 具有无级变速装置的作业车辆的变速系统选择设定为大于最小变速比的第一变速比，当发动机转速为设定为等于或接近空转的第一设定转速时 发动机转速; 当所述发动机转速等于或高于相对于所述第一设定转速在高速侧设定的第二设定转速时，以所述最小变速比保持所述无级变速器的变速比; 并且当发动机转速在第一和第二设定转动之间时，随着当时的发动机转速变低，无级变速器的变速比在第一变速比和最小变速比之间变大 速度。