Kanzaki Kokyukoki Mfg. Co., Ltd.

Other

Tuff Torq Corporation

Suzuki Motor Corporation

Masaru Iida

Koji Iwaki

Hiroaki Shimizu

Toshifumi Yasuda

Ryota Ohashi

Fumitoshi Ishino

Hideaki Okada

Michio Tsukamoto

Katsumoto Mizukawa

Daisuke Murashima

Koji Irikura

Toshiyuki Hasegawa

Hiroshi Sugimoto

Jun Matsuura

Hideki Kanenobu

Manabu Kawakami

Donald Wieber

Norihiro Ishii

Kenichi Takada

Shinya Sakakura

Keith Johnson Andrews

Atsuo Yoshina

Koji Sakata

Toshiyuki Fukuda

Shinichi Hirose

Nobuhisa Kamikawa

Tatsuya Kamada

Takehiro Ota

Kenta Sashikuma

Nobuhiro Shimobayashi

Yasuhito Nakai

Junichiro Tanaka

Ryo Ito

Toshikazu Matubayashi

Syouto Yoshimoto

Hideaki Syokita

Hiroyoshi Shindoh

Oscar H Saldierna

Trevor Nienke

A hydrostatic transaxle includes: a casing that is provided with an openable and closable filter insertion port and is filled with hydraulic oil; a hydraulic continuously variable transmission that is arranged inside the casing; a filter holding member that includes a support base that is a hollow cylindrical portion and oil-tightly partitions an inside of a cylinder and an outside of the cylinder, and a filter connection port that is a hollow cylindrical portion extending from a peripheral side surface of the support base and communicating with the inside of the cylinder, the support base communicating the inside of the cylinder to the port, and arranged between the center section and the casing facing the port; and a filter body that is freely inserted to and removed from the casing via the filter insertion port.

Hydrostatic transaxle

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.

Movable structure driving unit

A transaxle includes a braking unit disposed in the transaxle casing, the braking unit configured to brake the axle. The braking unit includes an operating shaft projecting from one side of the transaxle casing. A link mechanism of the transaxle is includes a relay arm rotatably pivoted on a shaft provided on the one side of the transaxle casing, a brake arm fixed to the operating shaft, the brake arm being configured to rotate between a braking position and an unbraking position of the braking unit together with the operating shaft, a first link configured to manipulate the relay arm, and a second link configured to join the relay arm to the brake arm. The link mechanism constrains motion of the brake arm through the second link such that an external force on the braking unit cannot cause an unexpected release from the braking state.

Transaxle

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.

Control mechanism for stepless transmission

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.

Transaxle and vehicle with it

A compact transaxle is provided with a multi-speed transmission mechanism having transmission shafts extended in a longitudinal direction so that the transaxle can be combined with an engine having a crankshaft in the longitudinal direction. A bevel gear serving as an output member of the multi-speed transmission mechanism having the transmission shafts meshes with a bevel gear provided on a speed-reduction intermediate shaft extended parallel to a pair of differential yoke shafts of a differential mechanism extended in a lateral direction. A single transaxle casing incorporates the multi-speed transmission mechanism, the differential mechanism, and a speed-reduction mechanism including the speed-reduction intermediate shaft, thereby constituting the transaxle.

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.

Transaxle including brake

Transaxle systems for a vehicle are disclosed where each of right and left transaxle units includes a hydraulic pump, a hydraulic motor and a casing incorporating the hydraulic pump and motor. Each hydraulic pump has a pump displacement control means operatively connected to a pump control arm pivoted on the casing, and each hydraulic motor has a motor displacement control means operatively connected to a motor control arm pivoted on the casing. A single motor controlling manipulator is operatively connected to the motor control arms to simultaneously shift the motor displacement control means of the right and left transaxle units between large displacement positions and small displacement positions.

Transaxle system for vehicle

A transaxle includes a hydrostatic transmission and an axle driven by the hydrostatic transmission. The hydrostatic transmission includes a hydraulic pump and a hydraulic motor fluidly connected to each other. The hydraulic pump has a pump shaft. The hydraulic motor has a motor shaft drivingly connected to the axle. The motor shaft has an axis extended slantwise from an axis of the pump shaft. The transaxle further includes a gear train for transmitting power from the motor shaft to the axle, and a gear locking system having a locking pawl. A gear of the gear train is adapted to engage with the locking pawl.

A vehicle transaxle system includes a pair of right and left transaxle units equipped on a vehicle. The right transaxle unit supports a single right axle, and the left transaxle unit supports a single left axle. A variable displacement hydraulic pump is disposed in each of the right and left transaxle units so as to be driven by power from a prime mover of the vehicle. A variable displacement hydraulic motor is disposed in each of the right and left transaxle units and is fluidly connected to the corresponding hydraulic pump so as to drive the corresponding right or left axle. A movable motor displacement control member is provided in each of the transaxle unit so as to be moved to change the displacement of the corresponding hydraulic motor. An interlocking connection means is connected to both the movable motor displacement control members of the respective hydraulic motors. The vehicle is provided with a first manipulator for changing displacements of the hydraulic pumps, and is provided with a second manipulator for operating the interlocking connection means. The interlocking connection means is operated by operating the second manipulator so as to synchronously move both the movable motor displacement control members.

Vehicle transaxle system

A brake system is provided for a vehicle equipped with a continuously variable belt transmission (hereafter a 'CVT') having a CVT input shaft and a CVT output shaft. The CVT functions as a clutch-disengagement action for isolating rotation of the CVT output shaft from the CVT input shaft when a rotary speed of the CVT input shaft is reduced to a certain level. The vehicle is equipped with a prime mover driving the CVT input shaft so that an output rotary speed of the prime mover defines the rotary speed of the CVT input shaft. The vehicle includes an accelerator manipulator for controlling the output rotary speed of the prime mover. The brake system can cause a resistance against the rotation of the CVT output shaft using the accelerator manipulator to reduce the output rotary speed of the prime mover to make the CVT function as the clutch-disengagement action.

Brake system for vehicle including continuously variable belt transmission

A hydraulic transaxle comprises a transaxle housing, an axle, a hydraulic pump, a hydraulic motor, a hydraulic circuit, and a pair of auxiliary pumps. The transaxle housing defines a fluid sump therein. The axle is supported by the transaxle housing. The hydraulic motor is disposed in the transaxle housing so as to drive the axle. The hydraulic pump is disposed in the transaxle housing so as to supply hydraulic fluid to the hydraulic motor. The hydraulic circuit is disposed in the transaxle housing so as to fluidly connect the hydraulic pump to the hydraulic motor. The pair of auxiliary pumps are disposed in the transaxle housing so as to supply fluid from the fluid sump to outside of the transaxle housing.

Hydraulic transaxle

A hydrostatic transaxle comprises: a housing; an axle disposed in the housing; a hydraulic motor having a rotary axis disposed in the housing; an inward-and-outward opened hole formed in the housing and disposed on the rotary axis of the hydraulic motor; and first and second motor shafts prepared to serve as a motor shaft of the hydraulic motor for driving the axle. One of the first and second motor shafts is selected to be disposed on the rotary axis of the hydraulic motor in the housing. When the first motor shaft is selected, an outer end of the first motor shaft is disposed in the housing so as to face the hole. When the second motor shaft is selected, an outer end of the second motor shaft projects outward from the housing through the hole.

Vehicle

An axle driving apparatus includes a first housing having a plurality of cooling fins, an axle rotatably mounted in the first housing, a hydraulic stepless speed change assembly disposed within the first housing. The axle driving apparatus also includes a second housing having a plurality of cooling fins, an axle rotatably mounted in the second housing, a hydraulic stepless speed change assembly disposed within the second housing. A connecting means, such as a bar and/or plate connects the first and second housings. The plurality of cooling fins on the first housing has a different configuration that the plurality of cooling fins on the second housing.

Axle driving apparatus for a zero turn radius vehicle

A hydrostatic transmission includes a hydraulic pump, a hydraulic motor, and a center section. The center section is formed therein with first and second fluid passages connecting kidney ports opened at a pump mounting surface to kidney ports opened at a motor mounting surface. The first and second fluid passages include respective straight portions parallel to the pump mounting surface and the motor mounting surface. When the center section is viewed to face the motor mounting surface, the straight portions of the first and second fluid passages substantially entirely overlap each other. When the center section is viewed to face the pump mounting surface, the straight portion of the first fluid passage is disposed between both ends of the second fluid passage, so that the straight portion of the first fluid passage and the ends of the second fluid passage are aligned on a substantially straight line.

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Amagasaki, Japan

Masaru Iida