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公开(公告)号：US12000467B2
公开(公告)日：2024-06-04
申请号：US17819136
申请日：2022-08-11
发明人： Koji Iwaki , Tomoyuki Tsuji
IPC分类号： F16H61/423 , F16H39/14 , F16H47/04 , F16H61/4008 , F16H61/425 , F16H61/433 , F16H61/435
CPC分类号： F16H47/04 , F16H39/14 , F16H61/4008 , F16H61/423 , F16H61/425 , F16H61/433 , F16H61/435
摘要： A pump operation piston biased by a neutral spring mechanism and a larger volume operation spring biased by a larger volume operation spring in a larger volume direction operatively move pump and motor volume adjusting members, respectively, is provided. A first pressure control valve commonly controls supply-discharge of pressure oil that presses the pump operation piston in a first slide direction and the motor operation piston in a smaller volume direction. A second pressure control valve controls supply-discharge of pressure oil that presses the pump operation piston in a second slide direction. Biasing forces of the neutral spring mechanism and the larger volume operation spring are so set that, after the pump operation piston is moved in the first slide direction by a predetermined distance, the motor operation piston starts moving.
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公开(公告)号：US11994170B2
公开(公告)日：2024-05-28
申请号：US17672191
申请日：2022-02-15
发明人： Toshiyuki Fukuda
CPC分类号： F16D1/08 , F16H48/12 , F16H48/38 , B60K17/165 , F16H2048/382
摘要： A differential gear includes a holder which is provided between first and second pinion gears in a differential case and through which a differential pinion shaft is inserted. An insertion hole is radially formed in the differential pinion shaft. The holder is formed with a fixing hole facing the insertion hole when the differential pinion shaft is inserted through the holder. Due to insertion of a fixing pin through the fixing hole and the insertion hole, the differential pinion shaft and the holder are relatively non-rotatable. Due to the holder being held between first and second side gears, relative rotation of the holder with respect to the differential case is restricted, and the differential pinion shaft is non-rotatable relative to the differential case.
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公开(公告)号：US20230160460A1
公开(公告)日：2023-05-25
申请号：US18154609
申请日：2023-01-13
发明人： Koji IWAKI , Kazuhiro OWADA , Kengo SASAHARA
CPC分类号： F16H47/04 , F16H3/62 , F16H61/462 , F16H37/042 , B60K17/10 , B60K17/02 , F16H37/0833
摘要： In a transmission structure according to this invention, speed change ratios of input side first and second transmission mechanisms are set so that the rotational speed of a planetary second element is the same when an HST output is set to a second HST speed in either a first transmission state or a second transmission state, and the rotational speed of a planetary first element is the same when the HST output is set to the second HST speed in either the second transmission state or the first transmission state. The speed change ratios of an output side first and second transmission mechanisms are set so that the rotational speed developed in a speed change output shaft when the HST output is set to the second HST speed is the same in either the first or second transmission states.
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公开(公告)号：US11649879B2
公开(公告)日：2023-05-16
申请号：US17547108
申请日：2021-12-09
IPC分类号： F16H1/06 , F16H57/023
CPC分类号： F16H1/06 , F16H57/023
摘要： A portal unit is provided. The portal unit includes a deceleration gear train and a housing. The housing includes an inner side wall that is formed with an input opening at a position above a rotation axial line of a driving wheel, an outer side wall that is formed with an output opening at a coaxial position with the rotation axial line of the driving wheel, and an intermediate wall that connects peripheral edges of the inner side wall and the outer side wall. The inner side wall is provided, at a radially outward position of the input opening, with mount bolts for the suspension unit. The mount bolts each include a shaft portion protruding inwardly in a vehicle width direction.
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公开(公告)号：US11644091B2
公开(公告)日：2023-05-09
申请号：US17709818
申请日：2022-03-31
发明人： Koji Iwaki , Tomoyuki Tsuji , Ryo Motooka
IPC分类号： F16H47/04
CPC分类号： F16H47/04
摘要： A hydromechanical continuously variable speed transmission is provided. The hydromechanical continuously variable speed transmission can include: the HST 10 in which the planetary gear mechanism 11 is housed in the planetary gear support case 71 mounted on a face of the center section 35 to form the HMT unit 100, the face being on the side opposite to the side on which the HST case 23 is mounted, and the HMT unit 100 is further provided with the housing mounting face 35d for fixing the HMT unit 100 to the housing 91 of the traveling power transmission mechanism 89, the housing mounting face 35d being provided on the center section 35 so as to surround the outer circumference of the mounting face 71a on which the planetary gear support case 71 is mounted.
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公开(公告)号：US20230064843A1
公开(公告)日：2023-03-02
申请号：US17875870
申请日：2022-07-28
发明人： Toshiyuki FUKUDA
IPC分类号： F16H48/34
摘要： Provided is a wheel driving device in which a lock operation mechanism can be disposed without increasing the width of a housing. In a wheel driving device, the housing includes support walls and a peripheral wall continuous to the support walls, a rotary shaft that rotatably supports a diff-lock fork around the axis orthogonal to the rotation axis of the differential gear is provided at a boundary between the peripheral wall and one of the support walls, the diff-lock fork includes one end portion extending along the support wall and the other end portion extending along the peripheral wall, the one end portion is engaged with a lock slider of the differential gear, and the other end portion is engaged with an actuator installed on the peripheral wall.
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公开(公告)号：US20230049519A1
公开(公告)日：2023-02-16
申请号：US17819136
申请日：2022-08-11
发明人： Koji IWAKI , Tomoyuki TSUJI
IPC分类号： F16H47/04 , F16H61/433 , F16H61/423 , F16H61/4008 , F16H61/435 , F16H61/425
摘要： A pump operation piston biased by a neutral spring mechanism and a larger volume operation spring biased by a larger volume operation spring in a larger volume direction operatively move pump and motor volume adjusting members, respectively, is provided. A first pressure control valve commonly controls supply-discharge of pressure oil that presses the pump operation piston in a first slide direction and the motor operation piston in a smaller volume direction. A second pressure control valve controls supply-discharge of pressure oil that presses the pump operation piston in a second slide direction. Biasing forces of the neutral spring mechanism and the larger volume operation spring are so set that, after the pump operation piston is moved in the first slide direction by a predetermined distance, the motor operation piston starts moving.
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公开(公告)号：US11427088B2
公开(公告)日：2022-08-30
申请号：US16454636
申请日：2019-06-27
发明人： Tatsuya Kamada , Michio Tsukamoto , Masaru Iida
IPC分类号： B60L15/20 , B60K17/356 , B60L50/50 , B60G3/20
摘要： A movable structure driving unit is a movable structure driving unit used for a movable structure, including: an electric motor that is electrically connected to a power supply and that drives a front wheel; a rear-side motive power source that drives a rear wheel; a jump detector that detects a jump of the front wheel from ground; and a motor controller that controls driving of the electric motor. The motor controller stops supply of a driving current from the power supply to the electric motor when the jump of the front wheel from the ground is detected in a state in which driving of the front wheel and the rear wheel is instructed.
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公开(公告)号：US20220163111A1
公开(公告)日：2022-05-26
申请号：US17645680
申请日：2021-12-22
发明人： Shuji NISHIMOTO , Yasuhito NAKAI , Tatsuya KAMADA
摘要： A fork guide groove of a drum member guides a shift fork so that a shifter member is in a reference position not engaged with first and second speed change members when the drum member is placed in a neutral position, is movable between a first speed-change position engaged with the first speed-change member and the reference position when the drum member is placed in a first operational position, and is movable between a second speed-change position engaged with the second speed-change member and the reference position when the drum member is placed in a second operational position. A slider guide groove of the drum member guides a slider member supported by a fork shaft in an axially movable manner so as not to obstruct movement of the shifter member between the reference position and the first speed-change position when the drum member is placed in the first operational position.
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公开(公告)号：US20220095541A1
公开(公告)日：2022-03-31
申请号：US17643564
申请日：2021-12-09
发明人： Mai TERADA , Koji KIYOOKA
IPC分类号： A01D69/03 , F15B15/02 , F16H39/12 , F16H61/427 , F16H61/437 , F16H61/438 , F16H61/439 , F16H63/34
摘要： A transaxle with a brake of the present invention includes the braking device comprising a plurality of brake discs, fixing plates, and a brake operating member, wherein the brake discs have an inner gear tooth portion that can be fitted to an outer gear tooth portion of an output gear of the motor shaft so as not to rotate relative to the outer gear tooth portion and is slidably fixed in the axial direction of the motor shaft, wherein the fixing plates are fixed to the transaxle casing so as not to rotate relative to each other and are slidably fixed in the axial direction of the motor shaft, and wherein the brake operating member provides a predetermined gap between the fixing plates and the brake discs when the brake discs are not pressed.
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