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公开(公告)号：US11535208B2
公开(公告)日：2022-12-27
申请号：US16292052
申请日：2019-03-04
发明人： Jun Matsuura , Koji Iwaki , Toshifumi Yasuda
IPC分类号： B60T1/00 , B60T13/22 , F16D63/00 , F16D65/16 , F16H39/10 , F16H63/34 , A01D34/66 , B60T1/06 , F16H7/00 , B60K17/10 , A01D69/03 , A01D69/10 , F16D121/04 , F16D125/58
摘要： A hydraulic transaxle facilitates mounting a parking brake unit which requires no link mechanism and is compact. The parking brake unit includes a brake rotor provided on a rotation shaft and a locking member being displaceable between a first position where the brake rotor is locked and a second position where the brake rotor is unlocked. The locking member includes a locking portion which is engaged in a recess formed in the brake rotor that locks the brake rotor in the first position, and a non-locking portion which is placed at a position corresponding to the recess and which separates from the brake rotor in the second position. The hydraulic transaxle further includes an oil-supply mechanism capable of displacing the locking member to the second position.
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公开(公告)号：US10794480B2
公开(公告)日：2020-10-06
申请号：US15920167
申请日：2018-03-13
发明人： Jun Matsuura , Nobuhisa Kamikawa , Syouto Yoshimoto , Koji Iwaki , Masaru Iida , Toshifumi Yasuda
IPC分类号： F16H61/433 , F15B15/06 , F15B15/14 , F16H39/14 , F04B1/324 , F04B49/22 , F16K11/07 , F04B1/20 , F03C1/06 , F04B23/10 , F04B49/08 , F04B49/00 , F16K31/06
摘要： A control mechanism for a stepless transmission is a control mechanism connected to a manipulation lever in a stepless transmission and disposed outside a housing of the transmission. The control mechanism includes: a) a piston rod connected to the manipulation lever; b) a piston provided on the piston rod coaxially with the piston rod; c) a cylinder case provided with a cylinder adapted to house the piston rod and the piston such that the piston rod and the piston are displaceable in an axial direction, the piston and the cylinder forming a first fluid chamber to be supplied with a hydraulic fluid for withdrawing the piston rod from the cylinder and a second fluid chamber to be supplied with the hydraulic fluid for introducing the piston rod into the cylinder; d) a spring adapted to bias the manipulation lever in a neutral direction coaxially with the piston rod; e) a proportional pressure control valve adapted to selectively supply the hydraulic fluid to the first fluid chamber or the second fluid chamber, the proportional pressure control valves being mounted to the cylinder case; and f) a pivot shaft adapted to support the cylinder case oscillatably with respect to the housing.
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公开(公告)号：US10711887B2
公开(公告)日：2020-07-14
申请号：US15947137
申请日：2018-04-06
发明人： Daisuke Murashima , Toshifumi Yasuda , Koji Iwaki , Masaru Iida
IPC分类号： F16H61/439 , F16H39/10 , F16H61/437 , F16H61/438 , F16H39/12 , F16H61/427 , F16H63/34
摘要： A transaxle includes a continuously variable transmission including a speed control arm and a neutral return spring allowing a biasing force to act on the speed control arm toward a neutral position, the speed control arm configured to operate from the neutral position to a forward position or a backward position to perform a continuous speed variation. The biasing force does not act on the speed control arm when the neutral return spring ranges from the neutral position to a predetermined speed position on a forward movement side, and the biasing force acts on the speed control arm when the neutral return spring ranges from the predetermined speed position to a maximum speed position on the forward movement side.
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公开(公告)号：US09945398B2
公开(公告)日：2018-04-17
申请号：US14661787
申请日：2015-03-18
发明人： Toshifumi Yasuda , Akihiro Ima , Takashi Nishizawa
CPC分类号： F15B15/06 , B60K17/043 , B60K17/105 , B60Y2200/415 , F16H39/10 , F16H47/04
摘要： A power transmission assembly for a vehicle with prime mover, prime mover output shaft, and right and left traveling devices, comprises a power distribution unit that receives rotary power from the prime mover output shaft and distributes it between right and left transmission units, which each include: a center section with a closed fluid circuit, a lateral first portion, and a second portion perpendicular thereto; a hydraulic pump mounted on the first portion such that a pump shaft is parallel to the prime mover output shaft; a hydraulic motor on the second portion fluidly connected to the hydraulic pump via the closed fluid circuit, having a lateral motor shaft; and a speed reduction device on a distal side of the hydraulic motor that transmits power from the hydraulic motor to the right or left traveling device.
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公开(公告)号：US11125291B2
公开(公告)日：2021-09-21
申请号：US16247101
申请日：2019-01-14
发明人： Jun Matsuura , Toshifumi Yasuda
IPC分类号： A01D69/10 , F16D65/16 , B60T1/06 , F16D125/58 , F16D125/70 , F16D121/24
摘要： Provided is a parking brake apparatus for a vehicle that allows an improvement in the ease of assembly during manufacturing. A parking brake apparatus for a work vehicle having wet brake mechanisms for restricting rotation of right and left axles and is able to simultaneously apply or release brakes via brake arms for the right and left transaxles. The parking brake apparatus includes a parking brake pedal for artificially providing a parking instruction, an electric actuator having a displacement portion that is displaced in response to the parking instruction, and a link mechanism connecting the displacement portion and the brake arms. The link mechanism includes auxiliary brake rods connected at first end portions to the brake arms, an equalizer connected to second end portions of the auxiliary brake rods, and a single principal brake rod connected at a first end portion to a substantially central portion of the equalizer and connected at a second end portion to the displacement portion.
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公开(公告)号：US09964126B2
公开(公告)日：2018-05-08
申请号：US14738410
申请日：2015-06-12
发明人： Daisuke Murashima , Trevor Nienke , Toshifumi Yasuda , Koji Iwaki , Masaru Iida
CPC分类号： F15B15/02 , A01D69/03 , B60T1/062 , F16H39/12 , F16H63/3416
摘要： A transaxle comprises a transaxle casing, axle, brake, brake arm, first and second link members, and relay arm. The brake includes a brake operation shaft pivotally supported by the transaxle casing for shifting between brake activation and inactivation states. A starting end of the first link member is connected to a manipulator, and a terminal end of the second link member is connected to the brake arm. The relay arm is pivotally centered on a first pivotal axis outside of the transaxle casing, and includes a first arm portion extended from the first pivotal axis to a first end and a second arm portion extended from the first pivotal axis to a second end. A terminal end of the first link member is connected to the first arm portion, and a starting end of the second link member is connected to the second arm portion.
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公开(公告)号：US20140027194A1
公开(公告)日：2014-01-30
申请号：US13961730
申请日：2013-08-07
发明人： Toshifumi Yasuda
IPC分类号： B60K17/356
CPC分类号： B60K17/356 , B60Y2200/223 , F16H61/425 , F16H61/456
摘要： A hydraulic motor unit according to the present invention includes an electric motor having an electric motor main body that is electrically controlled, an electric motor case that accommodates the electric motor main body and an electric motor main body output shaft that is rotated around an axis line thereof by the electric motor main body, the electric motor case being detachably mounted to the motor housing, wherein mounting of the electric motor to the motor housing causes the electric motor main body output shaft to be operatively connected to the first end of the control shaft so that the control shaft is rotated around the axis line in accordance with rotation of the electric motor main body output shaft.
摘要翻译： 根据本发明的液压马达单元包括具有电控电动机主体的电动机，容纳电动机主体的电动机壳体和围绕轴线旋转的电动机主体输出轴 电动机壳体可拆卸地安装在电动机壳体上，其中将电动机安装到电动机壳体上使得电动机主体输出轴可操作地连接到控制轴的第一端 使得控制轴根据电动机主体输出轴的旋转而围绕轴线旋转。
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公开(公告)号：US11207977B2
公开(公告)日：2021-12-28
申请号：US16718901
申请日：2019-12-18
发明人： Hiroshi Sugimoto , Akihiro Ima , Toshifumi Yasuda
摘要： An axle drive apparatus of the present invention includes an adapter unit that has an adapter case connectable to an axle drive case while supporting a first motor, an adapter input member connected to an output shaft of the first motor by connection of the first motor to the adapter case, an adapter output member that is connected to an axle drive input member of the axle drive apparatus by connection of the adapter case to an axle drive case, and an adapter power transmission mechanism that operatively transmits the rotational power of the adapter input member to the adapter output member. The axle drive apparatus is connectable to a vehicle frame through an axle drive case side frame connecting part and an adapter case side frame connecting part respectively provided at the axle drive case and the adapter case.
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公开(公告)号：US10570893B2
公开(公告)日：2020-02-25
申请号：US15165976
申请日：2016-05-26
摘要： A housing of a hydraulic pump is configured to have a servo unit detachably attached thereto so as to control tilt direction and angle of its movable swash plate. A port block is formed therein with a pair of main ports and, and a pair of main fluid passages and fluidly connecting respective main ports and to cylinders in its cylinder block. Main ports are used to have respective external pipes connected thereto so as to fluidly connect the hydraulic pump to a hydraulic motor disposed outside of the hydraulic pump, thereby constituting a hydrostatic transmission.
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公开(公告)号：US20160341297A1
公开(公告)日：2016-11-24
申请号：US15159456
申请日：2016-05-19
发明人： Koji IWAKI , Jun Matsuura , Toshifumi Yasuda
IPC分类号： F16H57/038 , F16H1/14 , F16H57/021
CPC分类号： F16H57/038 , F16C2310/00 , F16H1/14 , F16H57/021
摘要： In a bevel gear power transmission structure of the present invention, a first wall of a gear box, supporting a first shaft that is one of a drive shaft and a driven shaft, has a first opening having a larger diameter than a first bevel gear that is supported by the first shaft, and a hollow first collar retaining a first bearing that supports the first shaft is detachably disposed in the first opening. The first collar has an engagement surface facing outward in an axial direction of the first shaft in the first opening, and the engagement surface is directly or indirectly engaged with a first-collar retaining ring detachably attached to the inner circumferential surface of the first opening so that the first collar is prevented from being separated outward from the first opening.
摘要翻译： 在本发明的锥齿轮动力传递结构中，支撑作为驱动轴和从动轴之一的第一轴的齿轮箱的第一壁具有比第一锥齿轮大的直径的第一开口， 由第一轴支撑，并且保持支撑第一轴的第一轴承的中空的第一轴环可拆卸地设置在第一开口中。 第一轴环具有在第一开口中在第一轴的轴向方向上面向外的接合表面，并且接合表面与可拆卸地附接到第一开口的内周表面的第一环保持环直接或间接接合， 防止第一衣领从第一开口向外分离。
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