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公开(公告)号：US11338669B1
公开(公告)日：2022-05-24
申请号：US17135615
申请日：2020-12-28
发明人： Thomas J. Langenfeld
IPC分类号： F16H57/00 , B60K17/04 , F16H57/021 , F16H57/031 , F16H57/08 , F16H1/46 , B60K7/00 , F16H57/02
摘要： A reduction drive assembly includes a spindle that defines an aperture and a motor output shaft extending through the aperture. The reduction drive assembly includes an output hub and a planetary gear assembly. The planetary gear assembly includes a ring gear fixed to the output hub, a first stage sun gear coupled to and driven by the motor output shaft, a second stage sun gear, a planetary gear carrier engaged to the second stage sun gear, first stage planetary gears each of which is supported by a respective support pin of the planetary gear carrier and meshed with the first stage sun gear and the ring gear, carrier pins extending from a first end of the spindle, and second stage reduction gears each of which is rotationally mounted on a respective one of the carrier pins and is meshed with the second stage sun gear and the ring gear.
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公开(公告)号：US10451171B1
公开(公告)日：2019-10-22
申请号：US15347136
申请日：2016-11-09
摘要： A hydraulic fluid expansion tank is located inside a housing of a drive device. The expansion tank comprises a siphon tube in communication with a sump located within the drive device and also comprises a vent opening in communication with a vent of the drive device that is in communication with atmospheric pressure. The fluid expansion tank is positioned and restrained within the drive device without the use of fasteners.
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公开(公告)号：US09914350B1
公开(公告)日：2018-03-13
申请号：US14828078
申请日：2015-08-17
CPC分类号： B60K8/00 , B62D11/08 , E01H5/08 , F16H37/065 , F16H39/06 , F16H57/03 , Y10T74/2186
摘要： A drive mechanism includes a pair of driven axles, a center section and a pump and a motor rotatably disposed on one side of the center section. A clutch mechanism is located adjacent an opposite side of the center section to drive the pair of axles. The clutch includes at least one clutch fork disposed adjacent to the center section and being rotatable along an axis of rotation that is perpendicular to the axes of rotation of the pump input shaft and motor output shaft, and also perpendicular to the axis of rotation of the axles.
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公开(公告)号：US09664270B1
公开(公告)日：2017-05-30
申请号：US13960567
申请日：2013-08-06
发明人： Thomas J. Langenfeld
CPC分类号： F16H39/42 , A01D34/10 , A01D34/475 , A01D34/6806 , F16H39/10
摘要： A hydrostatic transmission includes a pump running surface and a motor running surface connected by internal porting formed in a housing member. A valve is disposed in the housing and connects a sump formed by the housing and the internal porting. A trunnion includes a first arm engaged to a swash plate to rotate the swash plate to vary the output of the pump, and a second arm which rotates with the first arm, the second arm having an operative end that is capable of opening the valve to permit a hydraulic connection between the internal porting and the sump through the valve bore when the trunnion is rotated to a predetermined position.
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公开(公告)号：US09408344B1
公开(公告)日：2016-08-09
申请号：US14535664
申请日：2014-11-07
发明人： Thomas J. Langenfeld
IPC分类号： A01D34/66 , A01D34/81 , A01B69/00 , A01D43/063
CPC分类号： B62D7/09 , A01B69/007 , A01D34/006 , A01D34/66 , A01D2101/00 , B62D3/126 , B62D7/16 , B62D61/065
摘要： A three-wheeled mowing vehicle is disclosed. The vehicle has a frame and a prime mover. Two steered wheels, steered by a steering mechanism, are near the front of the vehicle and a single non-steered wheel is near the rear of the vehicle. The vehicle has a deck that houses rotatable cutting blades. Portions of the deck are positioned in front of and adjacent each side of the rear wheel. A first rotatable cutting blade is positioned adjacent a first side of the rear wheel and a second rotatable cutting blade is positioned adjacent the opposite side of the rear wheel. One or more additional cutting blades are positioned in front of the rear wheel.
摘要翻译： 公开了一种三轮割草车。 车辆有一个框架和一个原动机。 由转向机构引导的两个转向轮靠近车辆前方，单个非转向轮靠近车辆后部。 车辆具有容纳可旋转切割刀片的甲板。 甲板的部分位于后轮前后并与其相邻。 第一可旋转切割刀片邻近后轮的第一侧定位，并且第二可旋转切割刀片邻近后轮的相对侧定位。 一个或多个附加的切割刀片位于后轮的前面。
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公开(公告)号：US09109684B1
公开(公告)日：2015-08-18
申请号：US13913893
申请日：2013-06-10
CPC分类号： B60K8/00 , B62D11/08 , E01H5/08 , F16H37/065 , F16H39/06 , F16H57/03 , Y10T74/2186
摘要： A clutch for driving a pair of output axles for a drive mechanism includes a driven clutch bevel gear mounted on a clutch shaft. A pair of clutch rings is disposed on opposite sides of the bevel gear and slidable along a clutch shaft, to selectively engage a pair of driven gears. A pair of clutch arms engages the clutch rings for moving each clutch ring between its engaged and disengaged positions, and a plurality of springs disposed along the clutch shaft biases the clutch rings to their respective engaged positions. The drive mechanism may include a mounting member having a running surface for a hydraulic motor, a pair of arms on opposite sides and extending away from the running surface, wherein the clutch shaft extends between and is supported by the pair of arms.
摘要翻译： 用于驱动用于驱动机构的一对输出轴的离合器包括安装在离合器轴上的从动离合器锥齿轮。 一对离合器环设置在伞齿轮的相对侧上并且可沿离合器轴滑动，以选择性地接合一对从动齿轮。 一对离合器臂接合离合器环，用于在其接合和分离位置之间移动每个离合器环，并且沿离合器轴布置的多个弹簧将离合器环偏压到它们各自的接合位置。 驱动机构可以包括具有用于液压马达的运行表面的安装构件，在相对侧上的一对臂，并且远离运行表面延伸，其中离合器轴在一对臂之间延伸并由该对臂支撑。
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公开(公告)号：US08636616B1
公开(公告)日：2014-01-28
申请号：US13913949
申请日：2013-06-10
发明人： Thomas J. Langenfeld
IPC分类号： F16H48/20
CPC分类号： F16H37/0813 , A01D69/002 , A01D69/06 , B60K17/28 , B60K25/06 , E01H5/09 , F16H37/042 , F16H37/08 , F16H39/14
摘要： A variable speed transaxle is disposed in a transaxle housing and drives a pair of axle shafts. A pair of clutch assemblies using a plurality of gears may be engaged to the axle shafts to selectively engage and drive each axle shaft. Each clutch assembly uses a ring gear having planet gears running on a gear form, a planet carrier for the planet gears engaged to the axle shaft, a first clutch dog selectively engageable to a first engagement structure to prevent rotation of the ring gear; and a second clutch dog selectively engageable to a second engagement structure to prevent rotation of the planet carrier and thereby provide a braking force to the axle shaft.
摘要翻译： 变速驱动桥设置在变速驱动桥壳体中并驱动一对车轴。 使用多个齿轮的一对离合器组件可以接合到车轴，以选择性地接合和驱动每个车轴。 每个离合器组件使用具有行星齿轮形状的行星齿轮的环形齿轮，用于与车轴接合的行星齿轮的行星架，可选择性地接合到第一接合结构以防止齿圈旋转的第一离合器齿; 以及第二离合器爪，其选择性地可接合到第二接合结构，以防止行星架的旋转，从而向车轴提供制动力。
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公开(公告)号：US11346439B1
公开(公告)日：2022-05-31
申请号：US17135547
申请日：2020-12-28
摘要： A reduction drive assembly includes a planetary gear assembly. The planetary gear assembly includes a first gear carrier that includes a first plate and projections extending therefrom. The first plate defines first support openings. The planetary gear assembly includes a second gear carrier that defines second support openings and joint openings. The joint openings receive the projections to couple the first and second gear carriers. The planetary gear assembly includes a sun gear coupled to an output shaft and disposed between the first and second gear carriers. The planetary gear assembly includes planet gears disposed around the sun gear between the first and second gear carriers. Each of the planet gears has a carrier pin. Each carrier pin is received by one of the first support openings and one of the second support openings to retain the planet gears between the first and second gear carriers.
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公开(公告)号：US11215275B1
公开(公告)日：2022-01-04
申请号：US16659059
申请日：2019-10-21
摘要： A hydraulic fluid expansion tank is located inside a housing of a drive device. The expansion tank comprises a siphon tube in communication with a sump located within the drive device and also comprises a vent opening in communication with a vent of the drive device that is in communication with atmospheric pressure. The fluid expansion tank is positioned and restrained within the drive device without the use of fasteners.
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公开(公告)号：US11118680B1
公开(公告)日：2021-09-14
申请号：US16457470
申请日：2019-06-28
发明人： Thomas J. Langenfeld
摘要： A hydrostatic drive includes a transmission having a pump and motor disposed on a center section, and a charge pump to provide fluid to a charge gallery. A power take off (PTO) driven by a prime mover includes a clutch assembly, solenoid valve, and PTO drive member driven by a prime mover input. When the solenoid valve is in a first position, fluid flows from the charge gallery to the clutch to connect the input with the PTO drive member, and when the solenoid valve is in a second position, fluid flows from the PTO mechanism to the sump to disengage the PTO drive member from the input. A filter may be disposed on a land on the center section and seated in a filter pocket in the housing. The filter engages with a bottom surface of the filter pocket to maintain a seal against the land.
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