公开(公告)号：US20030155735A1

公开(公告)日：2003-08-21

申请号：US10077195

申请日：2002-02-15

Applicant: KUBOTA CORPORATION

Inventor： Seiichi Takahashi ,  Ryohei Sumiyoshi ,  Isamu Kawai ,  Takashi Yasumi

IPC: B62D007/20

CPC classification number: B62D7/06 ,  B60K17/303 ,  B62D9/00 ,  F16D3/221

Abstract: A steering apparatus for a working vehicle is provided which is capable of steering dirigible wheels by increased steering angles while checking sideways sliding of the wheels on the ground. For this purpose, a pair of right and left intermediate cases are supported by right and left wheel supports of a vehicle body, each to be pivotable about a first steering axis extending substantially vertically. Each intermediate case supports an axle case in a position thereof opposed to the associated dirigible wheel, to be pivotable about a second steering axis extending substantially vertically. The axle case supports the associated dirigible wheel to be rotatable on an axle.

Abstract translation: 提供了一种用于工作车辆的转向装置，其能够在检查车轮在地面上的侧向滑动的同时通过增加的转向角度来转向不可转动的车轮。 为此，一对左右的中间壳体由车体的左右车轮支撑件支撑，每一个可绕着基本垂直延伸的第一转向轴线枢转。 每个中间壳体在其相对于相关联的刚性轮的位置支撑轴箱，以能够围绕基本上垂直延伸的第二转向轴枢转。 轴箱支撑相关联的转向轮可在轴上旋转。

公开(公告)号：US20030226416A1

公开(公告)日：2003-12-11

申请号：US10400154

申请日：2003-03-26

Applicant: KUBOTA CORPORATION

Inventor： Susumu Umemoto ,  Tetsuo Yamaguchi ,  Hidetoshi Hana ,  Isamu Kawai ,  Takashi Yasumi ,  Yoshifumi Horiuchi ,  Tetsu Fukui

IPC: F16H061/04

CPC classification number: F16H61/0437 ,  B60W10/02 ,  B60W10/10 ,  B60W10/14 ,  B60W30/18 ,  B60W30/1819 ,  B60Y2200/221 ,  B60Y2200/41 ,  F16H59/48 ,  F16H59/52 ,  F16H61/688 ,  F16H61/70 ,  F16H63/46 ,  F16H2059/147 ,  F16H2059/425 ,  F16H2061/0444 ,  F16H2306/14 ,  F16H2306/44 ,  F16H2306/52 ,  F16H2342/04 ,  Y10S477/90 ,  Y10S477/904 ,  Y10T74/19247 ,  Y10T74/19251 ,  Y10T74/1926 ,  Y10T477/65 ,  Y10T477/689 ,  Y10T477/69335

Abstract: A control apparatus (64) for a transmission. The transmission includes first and second transmission lines (7 8), (10, 11) disposed in parallel between an upstream transmission shaft (2) for receiving power from an engine (1) and a downstream transmission shaft (4) for transmitting the power to a traveling unit (53, 54); a hydraulic multiple disc transmission clutch (6) disposed transmission-wise upstream or downstream of the first and second transmission lines, the power of the upstream transmission shaft being transmitted via one of the first and second transmission lines to the downstream transmission shaft; a first gear change-speed mechanism (13) disposed between either the upstream transmission shaft or the downstream transmission shaft and the first transmission line, the first gear change-speed mechanism having a plurality of speed positions; a first actuator (35) for operating the first gear change-speed mechanism; a first friction clutch (9) incorporated in the first transmission line; a second gear change-speed mechanism (15) disposed between either the upstream transmission shaft or the downstream transmission shaft and the second transmission line, the second gear change-speed mechanism having a plurality of speed positions; a second actuator (37) for operating the second gear change-speed mechanism; and a second friction clutch (12) incorporated in the second transmission line. When the power is being transmitted via the first transmission line, a first controlling means operates the second gear change-speed mechanism into a predetermined speed position by means of the second actuator and operates the first friction clutch from a transmitting state to a non-transmitting state and simultaneously operates the second friction clutch from a non-transmitting state to a transmitting state, thereby to realize a progressive shifting of the transmission clutch from a transmitting state to a semi-transmitting state.