公开(公告)号：US06491604B1

公开(公告)日：2002-12-10

申请号：US09831955

申请日：2001-05-16

申请人： Katsunori Katou ,  Mizuya Matsufuji

发明人： Katsunori Katou ,  Mizuya Matsufuji

IPC分类号： F16H6104

CPC分类号： F16H61/061 ,  F16H59/14 ,  F16H59/42 ,  F16H61/0206 ,  F16H61/08 ,  F16H61/684 ,  F16H61/70 ,  F16H2061/0209 ,  F16H2061/0462 ,  F16H2306/52 ,  Y10T477/638 ,  Y10T477/688 ,  Y10T477/6937 ,  Y10T477/69383

摘要： A speed change mechanism (1) constructed by connecting in tandem a hydraulic type speed change unit (17) having a plurality of hydraulic clutches (57, 58, 59) to be alternatively engaged and a hydraulic type speed change unit (20) having a plurality of hydraulic clutches (66, 67, 68) to be alternatively engaged, wherein a time-varying region (common slip region) is secured in which the two clutches slip in common such that during speed change, when the working hydraulic pressure in a clutch to be engaged is on its way to gradual increase, the working hydraulic pressure in a clutch to be disengaged lowers. This common slip region is made smaller during shift-down than during shift-up by a change in time-difference between the pressure increase start time for the clutch to be engaged and the pressure decrease start time for the clutch to be disengaged or by a change in the pressure decrease property of the clutch to be disengaged, and is maintained constant irrespective of whether one or two hydraulic clutches are engaged and disengaged during speed change respectively or irrespective of a difference in engine rpm.

摘要翻译： 一种变速机构（1），其通过串联连接具有多个待交替接合的多个液压离合器（57,58,59）的液压变速单元（17）构成，液压变速单元（20）具有 多个液压离合器（66,67,68）可选择地接合，其中确保了两个离合器共同滑动的时变区域（公共滑动区域），使得在变速期间，当一个 要接合的离合器正在逐渐增加，要脱离的离合器中的工作液压降低。 该偏移区域在偏移期间比在向上移动期间由于要接合的离合器的增压开始时间和要离合的离合器的减压开始时间之间的时间差的变化而变小，或者通过 改变要分离的离合器的减压性能，并且保持恒定，而不管一个或两个液压离合器是否在变速改变期间分别接合和分离，或者与发动机转速的差异无关。

公开(公告)号：US06360623B1

公开(公告)日：2002-03-26

申请号：US09518395

申请日：2000-03-03

申请人： Mizuya Matsufuji

发明人： Mizuya Matsufuji

IPC分类号： F16H3700

CPC分类号： F16H37/043 ,  F16H63/3026 ,  F16H2037/044 ,  F16H2037/049 ,  F16H2063/3036 ,  Y10T74/19167 ,  Y10T74/19251 ,  Y10T74/2186

摘要： In a front housing (1) including at a front end portion thereof an engine flywheel (6), there are provided a primary drive shaft (8) which is co-axial with the flywheel, a transmission shaft (11) which is parallel to the drive shaft, and an output shaft (13) which is co-axial with the drive shaft. The output shaft is connected to a speed change mechanism (17, 20) in a transmission case (2) succeeding to the front housing. A first supplemetary speed charge mechanism (12) is disposed between the drive shaft and the transmission shaft, and a second supplementary speed change mechanism (14) is disposed between the transmission shaft and the output shaft. One of these supplementary change mechanisms is formed into a direction-reversing mechanism, and the other change mechanism is formed into a high/low speed-selecting mechanism. Preferably, the front housing includes a first bearing support wall (1a) disposed before the first supplementary change mechanism, a second bearing support wall (4) disposed between the first and second supplementary change mechanisms, and a third bearing support wall (5) disposed behind the second supplementary change mechanism. The second and third bearing support walls are removably secured. Preferably, the second supplementary change mechanism comprises a fluid-actuated clutch (45) and a spring-actuated clutch (46) which are supplied with fluid pressure through a single fluid passage (61) in the transmission shaft.

摘要翻译： 在其前端包括发动机飞轮（6）的前壳体（1）中，设置有与飞轮同轴的主驱动轴（8），传动轴（11），其平行于 驱动轴和与驱动轴同轴的输出轴（13）。 输出轴与前壳体之后的变速箱（2）中的变速机构（17,20）连接。 在驱动轴和传动轴之间设置有第一柔性加速装置（12），并且在传动轴和输出轴之间设置有第二辅助变速机构（14）。 这些辅助变换机构中的一个形成为方向反转机构，另一变换机构形成为高/低速选择机构。 优选地，前壳体包括设置在第一辅助更换机构之前的第一轴承支撑壁（1a），设置在第一和第二辅助更换机构之间的第二轴承支撑壁（4）和设置在第一和第二辅助更换机构之间的第三轴承支撑壁 在第二补充变革机制之后。 第二和第三轴承支撑壁可移除地固定。 优选地，第二辅助变换机构包括流体致动的离合器（45）和弹簧致动的离合器（46），其通过传动轴中的单个流体通道（61）供应流体压力。

公开(公告)号：US6044720A

公开(公告)日：2000-04-04

申请号：US243275

申请日：1999-02-02

申请人： Mizuya Matsufuji

发明人： Mizuya Matsufuji

IPC分类号： B60K17/06 ,  B60K17/08 ,  F16H3/02 ,  F16H37/04 ,  F16H61/70

CPC分类号： F16H37/043 ,  B60K17/08 ,  F16H61/70 ,  Y10T74/19219 ,  Y10T74/19228 ,  Y10T74/19233

摘要： A direction-reversing mechanism (20) is disposed between a primary shaft (17) and output shaft (19) which are arranged in parallel with each other with the output shaft being arranged at a level lower than that of the primary shaft. A first fluid-operated speed change mechanism (23) is disposed between a first drive shaft (21), arranged co-axially with and coupled to the output shaft, and a first driven shaft (22) arranged in parallel with the drive shaft. The drive shaft is arranged at a level lower than that of the driven shaft, and plural fluid-actuated clutches (63, 64, 65) are mounted on the drive shaft. A second fluid-operated speed change mechanism (24) is disposed between a second drive shaft (26), arranged co-axially with and coupled to the first driven shaft, and a second driven shaft (27) arranged in parallel with the second drive shaft. The second driven shaft is arranged at a level lower than that of the second drive shaft, and plural fluid-actuated clutches (75, 76, 77) are mounted on the second driven shaft. The fluid-actuated clutches mounted on the transmission shafts (21, 27) of low levels do not highten the level of an upper surface of the vehicle body and allows to arrange valve means for the first and second change mechanisms concentratedly on an outer surface of the vehicle body.

摘要翻译： 方向反转机构（20）设置在彼此平行布置的主轴（17）和输出轴（19）之间，输出轴布置在低于主轴的水平面的水平面上。 第一流体动力变速机构（23）设置在与输出轴同轴并联接的第一驱动轴（21）和与驱动轴平行布置的第一从动轴（22）之间。 驱动轴布置在比从动轴低的水平面上，并且多个流体驱动离合器（63,64,65）安装在驱动轴上。 第二流体操作的变速机构（24）设置在与第一从动轴同轴并联接的第二驱动轴（26）和与第二驱动器并联设置的第二从动轴（27） 轴。 第二从动轴配置在比第二驱动轴低的水平面上，多个流体驱动离合器（75,76,77）安装在第二从动轴上。 安装在低水平的传动轴（21,27）上的流体驱动的离合器不会使车体上表面的高度不会变高，并允许将第一和第二改变机构的阀装置集中布置在 车体。

公开(公告)号：US5644954A

公开(公告)日：1997-07-08

申请号：US541480

申请日：1995-10-10

申请人： Mizuya Matsufuji

发明人： Mizuya Matsufuji

IPC分类号： B60K17/08 ,  B60K17/06 ,  F16D25/12 ,  F16H37/04 ,  F16H57/021 ,  F16H57/023 ,  F16H57/04

CPC分类号： F16H57/0421 ,  F16H37/043 ,  F16H57/0434 ,  F16H57/02 ,  F16H57/0404 ,  Y10T74/2186

摘要： Within a rear half of a tractor front housing (1) which includes an internal partition wall (1a) and an open rear end, a fluid-operated first speed cleanse mechanism (12) is disposed and is supported, at its rear side, by a bearing support frame (4) which is in turn supported by the front housing. Within a transmission casing (2) which includes an open front end and is fastened to the rear of the front housing, a second speed change mechanism (15) is disposed and is supported, at its front side, by the support frame. A fluid pump (72) for supplying fluid to the first change mechanism is mounted on the partition wall. The support frame includes therein a fluid passage (162) which is adapted to function as a fluid passage for supplying fluid from a fluid sump within the vehicle body to the pump. The passage has first and second open ends (162a, 162b) at front and rear surfaces of the frame for connecting the passage to a pump suction passage (160) and to a fluid sump filter (165), preferably through internal pipes (166, 167).

摘要翻译： 在包括内部分隔壁（1a）和敞开的后端的拖拉机前壳体（1）的后半部分中，设置流体操作的第一速度清洁机构（12），并在其后侧被 轴承支撑框架（4）又由前壳体支撑。 在包括敞开的前端并紧固到前壳体的后部的变速箱壳体（2）内，设置有第二变速机构（15），并且在其前侧由支撑框架支撑。 用于向第一改变机构供给流体的流体泵（72）安装在分隔壁上。 支撑框架包括流体通道（162），其适于用作用于将流体从车体内的流体池供应到泵的流体通道。 通道在框架的前表面和后表面处具有用于将通道连接到泵抽吸通道（160）和流体贮槽过滤器（165）的第一和第二开口端（162a，162b），优选地通过内部管道（166） 167）。

公开(公告)号：US06786317B2

公开(公告)日：2004-09-07

申请号：US10230632

申请日：2002-08-29

申请人： Mizuya Matsufuji ,  Takumi Fujita

发明人： Mizuya Matsufuji ,  Takumi Fujita

IPC分类号： F16D250638

CPC分类号： F16D25/123 ,  F16D21/06 ,  F16D25/0638 ,  F16D25/12

摘要： A hydraulic clutch assembly is equipped with a spring-drive hydraulic clutch, which includes a gear rotatably mounted on a transmission shaft and a clutch cylinder fixedly mounted on the transmission shaft, first and second friction elements respectively supported on the gear and the clutch cylinder in such a manner as to be slidable along an axis of the clutch (hereinafter sometimes referred to a clutch axis) and relatively non-rotatable thereto, a pressure disk disposed opposite to the friction elements, and a spring for moving the pressure disk towards the friction elements to bring the first friction element into engagement with the second friction element, in which the pressure disk is moved away from the friction elements by an effect of hydraulic pressure, thereby withdrawing the friction elements from engagement with each other.

摘要翻译： 液压离合器组件装备有弹簧驱动液压离合器，其包括可旋转地安装在传动轴上的齿轮和固定地安装在传动轴上的离合器缸，分别支撑在齿轮和离合器缸上的第一和第二摩擦元件 这种方式能够沿着离合器的轴线（以下有时称为离合器轴线）滑动并且相对不可旋转的方式，与摩擦元件相对设置的压力盘，以及用于将压力盘朝向摩擦力移动的弹簧 元件，以使第一摩擦元件与第二摩擦元件接合，在第二摩擦元件中压力盘通过液压的作用从摩擦元件移开，从而使摩擦元件彼此接合。

公开(公告)号：US06553759B2

公开(公告)日：2003-04-29

申请号：US09861527

申请日：2001-05-22

申请人： Mizuya Matsufuji

发明人： Mizuya Matsufuji

IPC分类号： F16D3102

CPC分类号： B60T1/005 ,  B60K17/04 ,  B60K17/105 ,  B60K17/28 ,  B60T1/062 ,  B60Y2200/223 ,  B62D11/08 ,  F16H47/02 ,  Y10T74/19149 ,  Y10T74/20528 ,  Y10T74/2186

摘要： The present invention is so designed that a housing of a transmission which can drive front wheels and rear wheels and a power take-off shaft is constructed having a first chamber and a second chamber. A hydrostatic transmission is housed in the first chamber. A gear-type speed changing unit is housed in the second chamber. A hydraulic pump and a hydraulic motor are separately disposed on the inner and outer surfaces of the front wall of the first chamber. A clutch mechanism for engaging or disengaging with or from the front wheels for supplying power thereto is also provided. On the housing is provided a restraint mechanism for restraining rearward acceleration more than a predetermined speed by a speed control lever of the hydrostatic transmission when the gear-type speed changing unit is switched to the high speed setting. Left and right running brake units provided on the vehicle are made independently operable by treading left and right turn brake pedals on a first brake pedal shaft and made simultaneously operable by treading a master brake pedal on a second brake pedal shaft.

摘要翻译： 本发明的设计使得能够驱动前轮和后轮的传动装置的壳体和动力输出轴被构造成具有第一室和第二室。 静压传动装置容纳在第一室中。 齿轮式变速单元容纳在第二室中。 液压泵和液压马达分别设置在第一室的前壁的内表面和外表面上。 还提供了一种用于与前轮接合或从前轮脱离供给动力的离合器机构。 在齿轮式变速单元切换到高速设定时，在壳体上设置有用于通过静液压变速器的速度控制杆将向后加速度抑制到超过预定速度的约束机构。 设置在车辆上的左右行驶制动单元可通过在第一制动踏板轴上踩下左右煞车踏板而独立操作，并通过在第二制动踏板轴上踩踏主制动踏板而同时操作。

公开(公告)号：US06530290B2

公开(公告)日：2003-03-11

申请号：US09793327

申请日：2001-02-26

申请人： Mizuya Matsufuji ,  Takumi Fujita

发明人： Mizuya Matsufuji ,  Takumi Fujita

IPC分类号： F16H5900

CPC分类号： F16H59/02 ,  F16H61/70 ,  F16H63/44 ,  Y10T74/19167 ,  Y10T74/19251 ,  Y10T74/20079

摘要： A slidable and rotatable first control shaft (61) and a slidable and rotatable second control shaft (67) for respectively shifting main and auxiliary speed change mechanisms (26, 29) project outwardly to one side of a vehicle housing (2) and are connected respectively to a main change lever (74) and an auxiliary change lever (75) which are pivotally supported by a support member (70) fixedly provided at one side of the vehicle housing. Preferably, the main change lever is disposed at a location where an operator on a seat (76) can operate the lever easily whereas the auxiliary change lever is disposed at a location where the operator is hard to operate the lever. The support member is preferably composed of a cover member which surrounds the control shafts, lower portions of the change levers, and connecting members (80, 87) therebetween. An opening (70b) provided to the cover member for assembling the connecting members is closed by a closure member (70c).

摘要翻译： 一个可滑动和可旋转的第一控制轴（61）和一个可滑动且可旋转的第二控制轴（67），用于分别地移动主和辅助变速机构（26,29）向外突出到车辆壳体（2）的一侧并被连接 分别由固定地设置在车辆壳体的一侧的支撑构件（70）枢转地支撑的主变速杆（74）和辅助换档杆（75）。 优选地，主换档杆设置在座椅（76）上的操作者可以容易地操作杆的位置，而辅助换档杆设置在操作者难以操作杆的位置。 支撑构件优选由围绕控制轴的盖构件，变位杆的下部以及它们之间的连接构件（80,87）组成。 设置在用于组装连接构件的盖构件的开口（70b）由关闭构件（70c）封闭。

公开(公告)号：US06364045B1

公开(公告)日：2002-04-02

申请号：US09685634

申请日：2000-10-10

申请人： Mizuya Matsufuji ,  Takumi Fujita

发明人： Mizuya Matsufuji ,  Takumi Fujita

IPC分类号： B60K1734

CPC分类号： B60K23/08

摘要： A drive gear (37) having integral drive teeth (37a) is rotatably mounted on a transmission shaft (36) for transmitting power to front wheels, and a movable clutch member (52) having integral driven teeth (52a) engageable with the drive teeth is slidably but non-rotatably mounted on the transmission shaft. A spring (54; 54A) for biasing the movable clutch member into a direction of causing engagement of the driven teeth with the drive teeth is inserted at a part thereof into an axial bore (52b) in the clutch member. A piston (54) is slidably fitted in a cylinder member (55) which is fixedly mounted on the transmission shaft at a radially inward location of the drive and driven teeth. The transmission shaft includes a fluid passage (60) which applies fluid pressure to the piston such that the piston is moved so as to move the movable clutch member into a direction of causing disengagement of the driven teeth from the drive teeth. The front wheel drive clutch of this structure is small in the number of parts, is compact in its axial length, and is rich in durability.

摘要翻译： 具有一体式驱动齿（37a）的驱动齿轮（37）可旋转地安装在用于向前轮传递动力的传动轴（36）和具有与驱动齿接合的整体从动齿（52a）的可动离合器部件 可滑动但不能旋转地安装在传动轴上。 用于将可动离合器构件偏压到使从动齿与驱动齿接合的方向的弹簧（54; 54A）在其一部分处插入到离合器构件中的轴向孔（52b）中。 活塞54可滑动地装配在气缸构件55中，该气缸构件55在传动轴和驱动齿的径向向内位置固定地安装在传动轴上。 传动轴包括向活塞施加流体压力的流体通道（60），使得活塞移动以使可动离合器构件沿着使驱动齿与驱动齿分离的方向移动。 这种结构的前轮驱动离合器的部件数量小，其轴向长度紧凑，并且具有较强的耐久性。

公开(公告)号：US6125961A

公开(公告)日：2000-10-03

申请号：US203606

申请日：1998-12-02

申请人： Mizuya Matsufuji

发明人： Mizuya Matsufuji

IPC分类号： B60K17/34 ,  B60K17/35 ,  B60K23/08 ,  B60K28/16 ,  B60K17/348 ,  B60K17/354

CPC分类号： B60K23/0808 ,  B60K17/35 ,  B60K28/165 ,  B60K17/34 ,  Y10T74/19116

摘要： A four-wheel drive vehicle includes a first transmission system for transmitting power from an engine to a left and a right first driving wheel provided with a braking unit, and a second transmission system branching off from the first transmission system to transmit power to a second pair of driving wheels serving as steerable wheels. The second transmission system is provided therein with a frictional transmission passage having a frictional torque, which is smaller than that between the second driving wheels and a road surface, and a direct transmission passage disposed in parallel with the frictional transmission passage, so that either passage can be selected. The frictional transmission passage is selected when a speed-changing operating tool is set to its high speed position or when a steering device is operated beyond a predetermined angle, and the direct transmission passage is selected in all other cases.

摘要翻译： 四轮驱动车辆包括用于从发动机向左驱动动力的第一变速器系统和设置有制动单元的右第一驱动轮，以及从第一变速系统分支的第二变速系统，以将动力传递到第二传动系统 一对驱动轮作为转向轮。 第二传动系统设置有摩擦传动通道，其摩擦转矩小于第二驱动轮与路面之间的摩擦转矩，以及直接传动通道，其与摩擦传动通道平行设置，使得任一通道 可以选择。 当变速操作工具被设定到其高速位置或者当转向装置被操作超过预定角度时选择摩擦传动通道，并且在所有其他情况下选择直接传动通道。

公开(公告)号：US6119552A

公开(公告)日：2000-09-19

申请号：US145021

申请日：1998-09-01

申请人： Mizuya Matsufuji

发明人： Mizuya Matsufuji

IPC分类号： F16H3/091 ,  F16H37/04 ,  F16H57/02 ,  F16H59/02 ,  F16H61/70 ,  F16H63/20 ,  F16H63/38 ,  F16H63/44

CPC分类号： F16H63/20 ,  F16H3/091 ,  F16H37/043 ,  F16H57/02 ,  F16H2057/02043 ,  F16H2057/02056 ,  F16H2057/02086 ,  F16H2057/02095 ,  F16H2057/0235 ,  F16H2063/005 ,  F16H59/02 ,  F16H61/70 ,  F16H63/38 ,  F16H63/44 ,  Y10T74/19219 ,  Y10T74/2186

摘要： A transmission for a working vehicle like a tractor of the invention is housed in a transmission housing 1 interposed between an engine and a rear axle housing 2. An interior of transmission housing 1 is divided into a front chamber A and a rear chamber B through a partition wall 1a. In front chamber A is disposed a main-clutch system partition centering a traveling-input shaft 7. In rear chamber B is disposed a speed-changing system as a combination of reversing arrangement and multi-speed-changing arrangement. In a rear opening of housing 1 is disposed a bearing plate 3. In rear chamber B, a first speed-changing shaft 8, a second speed-changing shaft 9 and a front transmission output shaft 10 are supported in parallel between wall 1a and plate 3. A regular speed-reduction gear train and a reversing speed-reduction gear train are interposed between shafts 8 and 9, so that shafts 8 and 9 can be connected with each other through one of the gear trains by a first clutch device C1 on shaft 8. A second clutch device C2 is on shaft 9 so as to selectively connect shafts 7 and 9 directly. A plurality of gear trains for multi-speed stages are interposed between shafts 9 and 10, so that shafts 9 and 10 are connected with each other through one of the gear trans by a third clutch device C3 on shaft 10. A cover 51 is settled on housing 1. A main (second) speed-changing lever 52 and a sub (first) speed-changing lever 52 are disposed respectively at both lateral sides of cover 51. Third clutch device C3 is operated by lever 52. First and second clutch devices C1 and C2 are selectively operated by lever 55.

摘要翻译： 用于本发明的拖拉机的工作车辆的变速器容纳在插入发动机和后桥壳体2之间的变速器壳体1中。变速器壳体1的内部通过一个前室A和后室B被分成一个 隔墙1a。 在前室A中设置有以行进输入轴7为中心的主离合器系统分隔件。在后室B中设置有作为反转装置和多变速装置的组合的变速系统。 在壳体1的后开口设置有支承板3.在后室B中，第一变速轴8，第二变速轴9和前变速器输出轴10平行地支撑在壁1a和板 一个常规减速齿轮系和一个换向减速齿轮系插在轴8和9之间，使得轴8和9可以通过一个齿轮系通过第一离合器装置C1相互连接 第二离合器装置C2位于轴9上，以便直接选择性地连接轴7和9。 用于多速级的多个齿轮系被插入在轴9和10之间，使得轴9和10通过轴10上的第三离合器装置C3通过齿轮反相中的一个彼此连接。盖51被固定 分别设置在盖51的两侧的主（第二）变速杆52和副（第一）变速杆52.第三离合器装置C3由杆52操作。第一和第二离合器 设备C1和C2由杠杆55选择性地操作。