公开(公告)号：US4798260A

公开(公告)日：1989-01-17

申请号：US928124

申请日：1986-11-07

申请人： Masaru Nakata ,  Yuichi Kitao

发明人： Masaru Nakata ,  Yuichi Kitao

IPC分类号： B60K17/04 ,  B60K17/30 ,  B62D7/18 ,  B62D17/00

CPC分类号： B62D17/00 ,  B60K17/043 ,  B60K17/303 ,  B62D7/18 ,  Y10T74/19545 ,  Y10T74/19693

摘要： A steering apparatus for a front wheel drive tractor comprising, at each of opposite lateral sides thereof, a front axle, a front axle case housing the front axle, a kingpin, a transmission case provided in an outer end region of the front axle case to be pivotable about the kingpin, and a front wheel attached to the transmission case and including a hub shaft. The kingpin is operatively connected to the front axle through a bevel gear transmission, and the hub shaft is operatively connected to the kingpin through a bevel gear transmission and a planetary reduction mechanism. The front wheel has a substantially zero camber angle, and the kingpin is inclined such that a lower portion of the transmission case disposed inwardly with respect to a center of the tractor is substantially contained inside a rim of the front wheel.

摘要翻译： 一种用于前轮驱动牵引车的转向装置，在其相对侧面的每一侧包括前轴，容纳前轴的前轴箱，主销，设置在前轴箱的外端区域中的变速箱， 可围绕主销枢转，以及安装在变速箱上并包括轮毂轴的前轮。 主销通过锥齿轮传动装置可操作地连接到前轴，并且轮毂轴通过锥齿轮传动装置和行星减速机构可操作地连接到主销。 前轮具有基本上为零的外倾角，并且主销倾斜，使得相对于拖拉机的中心向内设置的变速箱的下部基本上容纳在前轮的轮辋内。

公开(公告)号：US4792010A

公开(公告)日：1988-12-20

申请号：US37858

申请日：1987-04-13

申请人： Yuichi Kitao ,  Akio Inamori

发明人： Yuichi Kitao ,  Akio Inamori

IPC分类号： B60K17/348 ,  B60K17/35 ,  B60K17/34 ,  B60K23/08

CPC分类号： F16H48/142 ,  B60K17/3505

摘要： A four wheel drive vehicle comprising an engine, a transmission connected to the engine, a front wheel drive line, a rear wheel drive line, and an automatic switch mechanism for operatively connecting the front wheel and rear wheel drive lines to the transmission to selectively provides a two wheel drive mode and a four wheel drive mode. The front wheel drive line and the rear wheel drive lines are constructed such that front wheels are driven at a lower speed than rear wheels. The automatic switch mechanism includes an input portion connected to the transmission, a first output portion connected to the front wheel drive line, a second output portion connected to the rear wheel drive line, and a clutch for connecting the first and second output portions to the input portion. The clutch is operable to disconnect the first output portion from the input portion upon receipt of a torque exceeding a predetermined value.

摘要翻译： 一种四轮驱动车辆，包括发动机，连接到发动机的变速器，前轮驱动线，后轮驱动线和用于将前轮和后轮驱动线可操作地连接到变速器的自动切换机构，以选择性地提供 双轮驱动模式和四轮驱动模式。 前轮驱动线和后轮驱动线被构造成使得前轮以比后轮低的速度被驱动。 自动切换机构包括连接到变速器的输入部分，连接到前轮驱动线的第一输出部分，连接到后轮驱动线的第二输出部分和用于将第一和第二输出部分连接到后轮驱动线路的离合器 输入部分。 离合器可操作以在接收到超过预定值的扭矩时将第一输出部分与输入部分断开。