公开(公告)号：US20110203868A1

公开(公告)日：2011-08-25

申请号：US12785609

申请日：2010-05-24

申请人： Mitsuo TOYOKAWA ,  Shingo FUJIOKA ,  Yusuke MURAKAMI ,  Tomoaki WATANABE ,  Masahiko YOSHINO ,  Hiroto MORI ,  Noboru SAGAWA ,  Kiyofumi SAKURAHARA

发明人： Mitsuo TOYOKAWA ,  Shingo FUJIOKA ,  Yusuke MURAKAMI ,  Tomoaki WATANABE ,  Masahiko YOSHINO ,  Hiroto MORI ,  Noboru SAGAWA ,  Kiyofumi SAKURAHARA

IPC分类号： B60K17/10

CPC分类号： F16H61/427 ,  B60Y2200/221 ,  F16H59/06 ,  F16H61/40 ,  F16H63/067 ,  F16H2059/0295 ,  Y10T74/20018

摘要： A working vehicle includes a HST, forward and reverse pedals, a brake pedal, an intermediate link mechanism (ILM) operating in linkage with operation of the forward or reverse (F or R) pedal, a single shift rod receiving the operation from the ILM and rotating a trunnion shaft of the HST to a forward drive side and to a reverse drive side, a neutral return mechanism (NRM) having a cam plate rotating integrally with the trunnion shaft and forming a curved surface portion, a roller moving in contact with the curved surface portion, a lower return arm configured integrally with a return arm that includes the roller, and a first spring acting in a direction of returning the trunnion shaft to a neutral position, a lower return arm onto which the first spring is latched, a F pedal onto which is latched a second spring acting in a direction of returning the trunnion shaft to the neutral position when depression operation of the F or R pedals is not being performed, an ILM including a damper applying a resistance to movements of the F or R pedals, and the NRM disposed between a rear wheel and a fender of the working vehicle in side view.

摘要翻译： 工作车辆包括HST，前进和后退踏板，制动踏板，与正向或反向（F或R）踏板的操作相联动地操作的中间连杆机构（ILM），接收来自ILM的操作的单个换档杆 并将HST的耳轴转动到前进驱动侧和反向驱动侧，中立返回机构（NRM）具有与耳轴一体旋转并形成弯曲表面部分的凸轮板，与之接触的滚子 所述弯曲表面部分，与包括所述辊的返回臂一体地构成的下回转臂以及沿着使所述耳轴转动到中立位置的方向起作用的第一弹簧，所述第一弹簧被锁定在所述下回转臂上， F踏板，当不执行F或R踏板的按压操作时，在其上锁住第二弹簧，所述第二弹簧沿着将耳轴转动到中立位置的方向作用，包括阻尼器 在侧视图中施加抵抗F或R踏板的动作以及设置在作业车辆的后轮与挡泥板之间的NRM。

公开(公告)号：US4528867A

公开(公告)日：1985-07-16

申请号：US417334

申请日：1982-09-13

申请人： Hideo Semba ,  Toshio Hori ,  Noboru Sagawa ,  Ryota Nagano

发明人： Hideo Semba ,  Toshio Hori ,  Noboru Sagawa ,  Ryota Nagano

IPC分类号： F16H3/085 ,  F16H3/093 ,  F16H57/02 ,  F16H57/023 ,  F16H3/08

CPC分类号： F16H3/093 ,  F16H3/085 ,  F16H57/02 ,  F16H2057/02013 ,  F16H2057/02043 ,  F16H2057/02056 ,  F16H2057/02086 ,  F16H2057/0235 ,  F16H37/043 ,  Y10T74/194 ,  Y10T74/2186

摘要： A transmission case for tractors consists of three parts, a front transmission case, a rear transmission case and a spacer transmission case, the spacer transmission case having a mounting flange around its outer periphery. The front and rear transmission cases are securely mounted to the mounting flange of the spacer transmission case so that the spacer transmission case is contained in either or both of the front and rear transmission cases thereby minimizing the entire length of the transmission case. The transmission case is also characterized in that the spacer transmission case has an opening in the ceiling to enable easy access to the gear components installed in the spacer transmission case during assembling work and adjustment.

摘要翻译： 拖拉机的变速箱包括三个部分，前传动箱，后传动箱和间隔件传动箱，间隔件传动箱具有围绕其外周的安装凸缘。 前传动箱和后传动箱牢固地安装在间隔件传动箱的安装法兰上，使得间隔件传动箱容纳在前传动箱和后传动箱之一或两者中，从而使变速箱的整个长度最小化。 变速器壳体的特征还在于，间隔件变速器壳体在天花板上具有开口，以便在组装工作和调整期间容易地接近安装在间隔件变速箱中的齿轮部件。

公开(公告)号：US08220582B2

公开(公告)日：2012-07-17

申请号：US12785609

申请日：2010-05-24

申请人： Mitsuo Toyokawa ,  Shingo Fujioka ,  Yusuke Murakami ,  Tomoaki Watanabe ,  Masahiko Yoshino ,  Hiroto Mori ,  Noboru Sagawa ,  Kiyofumi Sakurahara

发明人： Mitsuo Toyokawa ,  Shingo Fujioka ,  Yusuke Murakami ,  Tomoaki Watanabe ,  Masahiko Yoshino ,  Hiroto Mori ,  Noboru Sagawa ,  Kiyofumi Sakurahara

IPC分类号： B60K20/00

CPC分类号： F16H61/427 ,  B60Y2200/221 ,  F16H59/06 ,  F16H61/40 ,  F16H63/067 ,  F16H2059/0295 ,  Y10T74/20018

摘要： A working vehicle includes a HST, forward and reverse pedals, a brake pedal, an intermediate link mechanism (ILM) operating in linkage with operation of the forward or reverse (F or R) pedal, a single shift rod receiving the operation from the ILM and rotating a trunnion shaft of the HST to a forward drive side and to a reverse drive side, a neutral return mechanism (NRM) having a cam plate rotating integrally with the trunnion shaft and forming a curved surface portion, a roller moving in contact with the curved surface portion, a lower return arm configured integrally with a return arm that includes the roller, and a first spring acting in a direction of returning the trunnion shaft to a neutral position, a lower return arm onto which the first spring is latched, a F pedal onto which is latched a second spring acting in a direction of returning the trunnion shaft to the neutral position when depression operation of the F or R pedals is not being performed, an ILM including a damper applying a resistance to movements of the F or R pedals, and the NRM disposed between a rear wheel and a fender of the working vehicle in side view.

摘要翻译： 工作车辆包括HST，前进和后退踏板，制动踏板，与正向或反向（F或R）踏板的操作相联动地操作的中间连杆机构（ILM），接收来自ILM的操作的单个换档杆 并将HST的耳轴转动到前进驱动侧和反向驱动侧，中立返回机构（NRM）具有与耳轴一体旋转并形成弯曲表面部分的凸轮板，与之接触的滚子 所述弯曲表面部分，与包括所述辊的返回臂一体地构成的下回转臂以及沿着使所述耳轴转动到中立位置的方向起作用的第一弹簧，所述第一弹簧被锁定在所述下回转臂上， F踏板，当不执行F或R踏板的按压操作时，在其上锁住第二弹簧，所述第二弹簧沿着将耳轴转动到中立位置的方向作用，包括阻尼器 在侧视图中施加抵抗F或R踏板的动作以及设置在作业车辆的后轮与挡泥板之间的NRM。