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公开(公告)号：US4882940A
公开(公告)日：1989-11-28
申请号：US306223
申请日：1989-02-03
CPC分类号： A01D34/6806 , B60K17/10 , A01D2101/00
摘要： The present invention provides a simple and compact power transmission mechanism for a tractor or similar vehicle having mounted thereto a mechanical attachment such as a lawn mower. The power transmission mechanism includes an engine which transmits driving power to ground engaging wheels through a driving power transmission unit and to the mechanical attachment through a driving speed changing unit positioned atop the transmission unit and operatively interconnected to the drive shaft thereof. The driving speed changing unit includes an input shaft which receives engine driving power for driving the drive shaft through a differential gear unit. Engine power is transmitted to the attachment through a belt from a power take-off unit coupled to the input shaft.
摘要翻译： 本发明提供了一种用于拖拉机或类似车辆的简单紧凑的动力传递机构，其已经安装有诸如割草机的机械附件。 动力传递机构包括：发动机，其通过驱动动力传递单元将驱动力传递到接地轮，并且通过位于变速器单元顶部并可操作地与其驱动轴相互连接的驱动变速单元传递到机械附件。 驱动变速单元包括：输入轴，其通过差速齿轮单元接收用于驱动驱动轴的发动机驱动力。 发动机动力通过皮带从耦合到输入轴的动力输出单元传递到附件。
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公开(公告)号：US4148382A
公开(公告)日：1979-04-10
申请号：US754551
申请日：1976-12-27
申请人： Kojiro Yamaoka , Toshiro Azuma , Koichiro Fujisaki
发明人： Kojiro Yamaoka , Toshiro Azuma , Koichiro Fujisaki
IPC分类号： B60K17/06 , B60W10/10 , B60W10/12 , B60W10/18 , B60W10/184 , F16H3/16 , F16H37/04 , F16H61/20 , F16H61/36 , F16H61/684 , F16H63/02 , F16H63/12 , F16H63/30 , B60K29/02
CPC分类号： F16H3/16 , F16H37/043 , F16H61/20 , F16H61/36 , F16H61/684
摘要： A vehicle power transmission for tractors and the like having a fluid operated speed-change mechanism which comprises a plurality of rotatably mounted speed-change gears arranged on a lay shaft and a plurality of fluid actuated clutches associated with the respective speed-change gears for selectively connecting each of the gears to the lay shaft. A brake is provided which selectively brakes the lay shaft at the non-operation state of the fluid operated speed-change mechanism. The brake prevents unexpected transmission of power through the speed-change mechanism at the non-operation state of the mechanism, thereby preventing problems such as an unexpected start of the vehicle.
摘要翻译： 一种用于具有流体操作的变速机构的拖拉机等的车辆动力传递装置，其包括布置在副轴上的多个可旋转地安装的变速齿轮和与各个变速齿轮相关联的多个流体驱动的离合器，用于选择性地 将每个齿轮连接到副轴。 提供制动器，其在流体操作的变速机构的非操作状态下选择性地制动副轴。 制动器在机构的非操作状态下防止通过变速机构的意外的动力传递，从而防止诸如车辆的意外启动之类的问题。
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公开(公告)号：US4784013A
公开(公告)日：1988-11-15
申请号：US928098
申请日：1986-11-07
申请人： Kojiro Yamaoka , Koichiro Fujisaki
发明人： Kojiro Yamaoka , Koichiro Fujisaki
IPC分类号： F15B21/04 , B60K17/04 , B60K17/10 , F16H57/02 , F16H57/025
CPC分类号： B60K17/105 , Y10T74/19991 , Y10T74/2186
摘要： The present invention relates to a driving apparatus which is attached with a HST system transmission and used for a light tractor or the like and which is simple in construction and easy to assemble, inspect and repair.
摘要翻译： 本发明涉及一种搭载有HST系统变速器的驱动装置，用于轻型拖拉机等，结构简单，易于组装，检修。
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公开(公告)号：US4664210A
公开(公告)日：1987-05-12
申请号：US819860
申请日：1986-01-17
CPC分类号： B62D5/07
摘要： A hydraulic steering system for use in four-wheel running vehicles or the like of small size and low horsepower. The steering system and a hydraulic system for lifting a working implement are both operable by a single hydraulic pump without the necessity of using a variable displacement hydraulic pump or providing two hydraulic pumps for the two systems. The steering system is operable by an engine of low horsepower.
摘要翻译： 一种用于四轮行驶车辆等的小型和低功率的液压转向系统。 用于提升作业工具的转向系统和液压系统都可以由单个液压泵操作，而不需要使用可变排量液压泵或为两个系统提供两个液压泵。 转向系统由低功率发动机操作。
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公开(公告)号：US4110898A
公开(公告)日：1978-09-05
申请号：US773198
申请日：1977-03-01
申请人： Kojiro Yamaoka , Toshihide Mihara , Akira Tanaka
发明人： Kojiro Yamaoka , Toshihide Mihara , Akira Tanaka
CPC分类号： B23Q7/1431 , B23Q3/157 , B23Q37/00 , B23Q2003/1558 , Y10T29/5124 , Y10T483/1738 , Y10T483/175 , Y10T483/1788 , Y10T483/1809 , Y10T483/1845 , Y10T483/1882
摘要： A machine tool comprising one or plural storage magazines which are mounted along the vertical direction rotatably around a vertical axis on an upstanding support frame structure at a side of working station. Each of the magazines stores at the periphery thereof a plurality of spindle heads, workpiece supporting jigs or tool supporting heads which are alternatively set one by one to a set position at the working station for operation on workpieces. Alternative setting of such heads or jigs is achieved by a selective rotation of each magazine and by a selective lifting and lowering of the head or jig between the set position and a store position just above such set position. Floor space required for storing and exchanging the heads or jigs is largely saved. A particular exchanging device for exchanging heads or jigs stored by the magazines for another heads or jigs is provided which greatly enlarges processings possibly carried out at the working station.
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公开(公告)号：US4867008A
公开(公告)日：1989-09-19
申请号：US928151
申请日：1986-11-07
申请人： Kojiro Yamaoka , Shusuke Nemoto
发明人： Kojiro Yamaoka , Shusuke Nemoto
IPC分类号： F16H57/02 , F16H57/037
CPC分类号： F16H57/037 , F16H2057/02013 , F16H2057/02056 , Y10S180/90 , Y10T74/2186
摘要： A transmission formed of aluminum die casting which has disposed therein a differential gear and speed reduction gears. The case is provided at the outer surface thereof with a hydro-static transmission system. The transmission case is divided horizontally into three sections at two planes, one of which passes through the axis of each driving axle of the tractor, the other of which passes through the axes of the speed reduction gears.
摘要翻译： 由铝压铸件形成的变速器，其中设置有差速齿轮和减速齿轮。 在其外表面设置有水力静力传动系统。 变速箱在两个平面处水平分为三个部分，其中一个穿过拖拉机的每个驱动轴的轴线，另一个穿过减速齿轮的轴线。
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公开(公告)号：US4827783A
公开(公告)日：1989-05-09
申请号：US98072
申请日：1987-09-18
申请人： Kojiro Yamaoka , Hideaki Okada
发明人： Kojiro Yamaoka , Hideaki Okada
IPC分类号： F16H61/16 , B60K17/08 , F16H3/08 , F16H3/083 , F16H59/02 , F16H61/22 , F16H63/00 , F16H63/04 , F16H63/32 , F16H63/36 , F16H63/38
CPC分类号： F16H63/04 , B60K17/08 , F16H3/083 , F16H63/38 , F16H2063/3096 , Y10T74/1946 , Y10T74/2011
摘要： In a key-shift transmission which comprises a shifting mechanism including a shifter fork (51) slidable on a fork shaft (50), an interlocking mechanism for preventing a shifting operation at the engaged condition of clutch (22) is provided by utilizing a latching mechanism disposed between the fork and fork shaft. In addition to a spring-biased latching ball (55) cooperating with a plurality of annular grooves (52N-52R) of the fork shaft for the latching purpose, a second ball (61) is provided which is received in the fork and is operative to interlock such fork in cooperation with the annular grooves. The fork shaft is supported rotatably and is operatively connected to a clutch-disengaging pedal (26) so that the shaft is rotated at the clutch-disengaged condition to an angular position where additional cut-out grooves (65) formed to the fork shaft unlock the fork.In an aspect of the invention, the fork shaft is formed with second cut-out grooves (74) by which a clutch-disengaging operation may be omitted for a quick shifting purpose under a relatively shock-free condition.
摘要翻译： 在包括可在叉轴（50）上滑动的换档拨叉（51）的换挡机构的键换换传动装置中，通过利用锁定装置提供用于防止离合器（22）的接合状态下的变速操作的联锁机构 设置在叉和叉轴之间的机构。 除了用于闩锁目的的与叉轴的多个环形槽（52N-52R）配合的弹簧偏置闭锁球（55）之外，还提供了一个第二球（61），其被接收在叉中并且可操作 以与环形槽协作来联锁这种叉。 叉轴被可旋转地支撑并且可操作地连接到离合器分离踏板（26），使得轴在离合器分离状态下旋转到角位置，其中形成在叉轴上的附加切口槽（65）解锁 叉子。 在本发明的一个方面，叉轴形成有第二切口槽（74），在相对无震动状态下，可以省略用于快速换档的离合器分离操作。
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公开(公告)号：US4809796A
公开(公告)日：1989-03-07
申请号：US108927
申请日：1987-10-15
申请人： Kojiro Yamaoka , Shusuke Nemoto
发明人： Kojiro Yamaoka , Shusuke Nemoto
CPC分类号： B60K17/105
摘要： Separate left and right hydrostatic transmission (15) for controlling rotation of left and right final drive wheels (11) of a working vehicle independently are disposed laterally inwardly of the drive wheels in a vertical posture such that, while an input shaft (23) extends upwardly, an output shaft (24) extends downwardly. To each of the hydrostatic transmissions is attached a L-shaped gear box (16) which extends over lower and outer sides of the hydrostatic transmission and supports the axle (17) of final drive wheel at its upstanding portion. within the box is housed first and second reduction gear trains which form a L-shaped transmission path between the output shaft and axle.
摘要翻译： 独立地用于控制作业车辆的左右的最终驱动轮（11）的旋转的独立的左右静液压传动装置（15）以垂直姿势横向地设置在驱动轮的内侧，使得当输入轴（23）延伸 向上，输出轴（24）向下延伸。 每个静液传动装置都安装有L形齿轮箱（16），其在静液传动装置的下侧和外侧延伸，并在其直立部分支撑最终驱动轮的轴（17）。 在箱体内装有第一和第二减速齿轮系，其在输出轴和轴之间形成L形传动路径。
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公开(公告)号：US4727759A
公开(公告)日：1988-03-01
申请号：US897859
申请日：1986-08-19
申请人： Kojiro Yamaoka , Shusuke Nemoto
发明人： Kojiro Yamaoka , Shusuke Nemoto
CPC分类号： B60K17/28 , Y10T74/19033
摘要： A front and rear transmission casing are joined to form a single casing. Upper and lower input shafts are received and supported by the front casing. The lower input shaft drives a change speed gearing with a speed change shaft and a pinion shaft. The pinion shaft has a pinion gear located on a further end of the shaft and engages a ring gear of a differential. The upper input shaft drives a clutch driven shaft through a PTO clutch unit. A rear PTO shaft is driven by the clutch driven shaft and extends out of the rear casing. A mid PTO shaft is also driven by the clutch driven shaft and extends out of the front casing.
摘要翻译： 前后传动壳体接合形成单个壳体。 上下输入轴由前壳体接收和支撑。 下输入轴用变速轴和小齿轮轴驱动变速传动。 小齿轮轴具有位于轴的另一端的小齿轮，并与差速器的齿圈接合。 上输入轴通过PTO离合器单元驱动离合器从动轴。 后PTO轴由离合器从动轴驱动并延伸出后壳体。 中间PTO轴也由离合器从动轴驱动并延伸出前壳体。
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公开(公告)号：US4673055A
公开(公告)日：1987-06-16
申请号：US865113
申请日：1986-05-20
申请人： Kojiro Yamaoka , Hideaki Okada
发明人： Kojiro Yamaoka , Hideaki Okada
CPC分类号： B60W30/18 , B60W10/02 , B60W10/10 , F16H3/083 , F16H63/04 , F16H63/46 , F16H63/16 , Y10T74/1946
摘要： In a self-propelled working vehicle having a speed change mechanism wherein a plurality of change gears journaled on a shaft are coupled one at a time by key means disposed within and shiftable along the shaft, fluid-actuated clutch is provided for interrupting input of power to the speed change mechanism before shifting operations. For protecting gear-engaging clutch portion of the key means for damage, fluid pressure applied to the clutch from a disengaged condition thereof is increased gradually by a relief valve including a pressure-modulating control piston. For disengaging the clutch before shifting operations, an unloader valve is provided which is actuated by moving a speed change lever along a direction other than the key-shifting direction.Relief valve means also acting as an unloader valve for disengaging the clutch is disclosed. Differential-locking clutch is also disclosed which is operated by fluid for actuating the clutch in the transmission path.
摘要翻译： 在具有变速机构的自行车作业车辆中，其中轴上的多个变速齿轮通过设置在轴内并可沿轴移动的键装置一次一个地联接，提供流体致动离合器用于中断动力输入 到变速操作前的变速机构。 为了保护关键装置的齿轮啮合离合器部分的损坏，通过包括压力调节控制活塞的安全阀逐渐增加从其脱离状态向离合器施加的流体压力。 为了在换档操作之前使离合器分离，设置卸载阀，该卸载阀通过沿除了键移动方向以外的方向移动变速杆而致动。 公开了还用作用于脱离离合器的卸载阀的安全阀装置。 还公开了差速锁定离合器，其由用于致动传动路径中的离合器的流体操作。
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