Abstract: A riding lawnmower includes left and right wheels, at least one caster wheel, a lawnmower blade or reel, and a control section. The left and right wheels are independently driven by electric rotary machines to travel. The lawnmower blade or reel is driven for mowing. The control section, in response to turn instruction input by a turn operator, controls the left and right wheels according to preset standard setting conditions, or according to deceleration setting conditions which differ from the standard setting conditions, under which at least one of a vehicle movement speed and vehicle turning speed is decelerated more than under standard setting conditions. The riding lawnmower includes a section designating either standard setting conditions or deceleration setting conditions. In a riding lawnmower, left and right wheels are caused to turn around a turn center position corresponding to a turn instruction according to designated setting conditions.

Abstract: A hydrostatic stepless transmission (“HST”) includes a center casing into which a plunger block of a hydraulic pump and a plunger block of a hydraulic motor are inserted. Plunger ports are open and aligned peripherally on an outer peripheral surface of each plunger block. A pair of main fluid passages of a closed fluid circuit fluidly connecting the hydraulic pump to the hydraulic motor are formed in opposite side portions of the center casing. Each of the main fluid passage includes peripheral grooves formed on an inner peripheral surface of the center casing so as to face the plunger ports of the respective plunger blocks, and includes an axial fluid duct formed to be interposed between the peripheral grooves. A bearing gap is provided between the inner peripheral surface of the center casing and the outer peripheral surface of the plunger block so as to cause a dynamic pressure action of fluid.

Abstract: A boring device according to the present invention includes: a hollow main shaft; a table supporting the main shaft rotatably about a predetermined axis; a tool holder extending in the form of a bar and configured to rotate coaxially with the main shaft; a radially protruding tool provided at a distal end portion of the tool holder; a tilting unit provided between the main shaft and the tool holder in the axis direction and configured to cause the tool holder to be inclined from the axis; a drawbar configured to be movable back and forth in the axis direction within the main shaft; a first drive unit configured to rotate the main shaft about the axis; and a second drive unit configured to move the drawbar back and forth in the axis direction.

Abstract: A belt type continuously variable transmission device includes an actuator that moves a moveable sheave member of a drive pulley which is a one-side pulley in an axial direction. The actuator includes a moveable feed member, a gear case, and an electric motor. The moveable feed member includes an inner tube section in which a moveable-side feed screw is provided, an outer tube section in which an outer gear is provided, and a lid section. The gear case has a fixed tube section in which a fixed-side feed screw is provided, and an outer cover. The electric motor drives a motor-side gear that intermeshes with the outer gear. The outer cover has an opening into which the outer tube section is inserted and that proximately opposes an outer circumferential surface of the outer tube section.

Abstract: A work vehicle includes a driving wheel motor for driving at least one driving wheel, a working implement-related motor for driving at least one working implement, and at least one controller. The at least one controller sets, upon satisfaction of a predetermined condition set in advance, a relationship between vehicle speed of the work vehicle and working implement-related target rotational speed of the working implement-related motor to a working travelling cooperative relationship according to which the working implement-related target rotational speed is increased according to an increase in the vehicle speed at least within a predetermined vehicle speed range of the work vehicle, and controls the working implement-related motor to implement a working travelling cooperative mode in which the working implement-related motor is driven at the working implement-related target rotational speed based on the working travelling cooperative relationship.

Abstract: A belt type variable speed-change mechanism transmitting a rotational power from a driving shaft to a driven shaft in a continuously variable manner and a constant-speed power-transmitting mechanism transmitting a rotational power at a constant-speed from the driving shaft to a constant-speed driven-side rotational body supported by the driven shaft in a relatively rotatable manner with respect thereto are accommodated in a casing. A planetary gear mechanism including a first element receiving a variable-speed rotational power through the driven shaft, a second element receiving a constant-speed rotational power through the constant-speed driven-side rotational body and a third element outputting a combined rotational power is supported by the driven shaft in the casing.

Abstract: A motor control system includes a drive motor and a deck motor that are connected to a battery, an ECU, and a key switch. The key switch acquires that an operation unit has been turned on, and transmits a restart permission signal to the ECU. When SOC of the battery reaches or falls below a first threshold set in advance, the ECU performs a step of disabling all the motors, and when the restart permission signal is received, the ECU performs a step of executing a decelerated travelling mode where the disabled state of the drive motor is released and an allowed speed of the drive motor is reduced.

Abstract: A transmission for a working vehicle equipped with an engine having a horizontal engine output shaft, pair of transaxles for driving right and left drive wheels at variable speeds, and working device comprises a horizontal input shaft, output shaft, first gear train, horizontal PTO shaft, second gear train, PTO clutch and casing. An axial end of the input shaft connects to a flywheel of the engine. The output shaft drivingly connects to the transaxles. The first gear train transmits power from the input shaft to the output shaft. The PTO shaft extends parallel to the input shaft, and is provided with a universal joint connected to the working device. The second gear train transmits power from the input shaft to the PTO shaft via the PTO clutch. The casing supports the input and output shafts and incorporates the first and second gear trains and the PTO clutch.

Abstract: A vehicle comprises a transaxle, a battery and a load carrying bed. The transaxle includes a casing incorporating a drive train and supporting an axle and includes an electric motor mounted on the casing to drive the axle via the drive train. The battery is provided for supplying electric power to the electric motor. The transaxle and the battery are disposed below the load carrying bed so as to overlap the load carrying bed when viewed in plan.

Abstract: A driving-side pulley includes a cam mechanism that presses a movable sleeve in a first direction by utilizing a relative rotation of the movable sleeve in the normal direction with respect to an axis-line-direction fixed member, the first direction being a direction that has a pressing surface pressed against a corresponding side surface of a belt.

Abstract: A continuously variable transmission control system includes a continuously variable transmission device having an electricity-driven actuator that changes an width between a moveable sheave and a fixed sheave in at least one pulley of a drive pulley and a driven pulley, and a control device that controls driving of the electricity-driven actuator. The control device selects, from a plurality of speed relationships, each of which is a relationship between an input shaft rotational speed of the drive pulley and an output shaft rotational speed of the driven pulley, one speed relationship according to an input of a switch command signal or a drive state of the vehicle, and changes the width between the moveable sheave and the fixed sheave based on the selected speed relationship and detected values of the input shaft rotational speed and the output shaft rotational speed.

Abstract: 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.

Abstract: A transaxle is adaptable to a vehicle equipped with a longitudinal engine including an engine output shaft to be oriented in a longitudinal direction of a vehicle. The transaxle comprises a transmission output shaft to be oriented in a lateral direction of the vehicle so as to be drivingly connected to a drive wheel of the vehicle, a hydrostatic transmission and a mechanical transmission for transmitting power from the engine output shaft to the transmission output shaft, and first and second power take-off shafts for taking off power from the mechanical transmission. The engine is joined to the transaxle so that the engine, the hydrostatic transmission and the mechanical transmission are assembled together. The first and second power take-off shafts are distributed rightward and leftward from the engine.

Abstract: 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.

Abstract: A travel control unit of a working vehicle includes an HST which is a hydraulic continuously variable transmission having a hydraulic pump and a hydraulic motor, a pedal sensor which is an operator sensor which detects a position of an acceleration pedal which is an acceleration operator, and a controller which changes a displacement of the hydraulic pump based on the position of the acceleration pedal. The controller increases the displacement of the hydraulic motor as the displacement of the hydraulic pump is reduced due to a displacement of the acceleration pedal to a low-velocity side.

Abstract: 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.

Abstract: A hydrostatic transmission comprises a hydraulic pump, a hydraulic motor, first and second main fluid passages fluidly connecting the hydraulic pump to the hydraulic motor so as to constitute a closed fluid circuit, a charge fluid passage, a plurality of first charge check valves and a plurality of second charge check valves. The plurality of first charge cheek valves are interposed between the charge fluid passage and the first main fluid passage so as to allow only flow of fluid from the charge fluid passage to the first main fluid passage when the first main fluid passage is hydraulically depressed relative to the charge fluid passage. The plurality of second charge check valves are interposed between the charge fluid passage and the second main fluid passage so as to allow only flow of fluid from the charge fluid passage to the second main fluid passage when the second main fluid passage is hydraulically depressed relative to the charge fluid passage.

Abstract: A housing supporting a rotational shaft and accommodating an axial piston member is provided with an oil reservoir space that faces at least one of the two end faces in the axial direction of the rotational shaft. The rotational shaft is provided with a rotational-shaft-side supply oil passage that includes an axial hole open to the oil reservoir space and an axial-piston-member lubricating oil hole having one end fluidly connected to the axial hole and the other end open to a portion of the external surface of the first rotational shaft that faces the axial piston member.

Abstract: A linear actuator having a linearly extending slider disposed in a body casing, a plurality of magnets fixed to the slider along the axial direction of the slider, and a plurality of coils supported by the body casing so as to surround the slider to which the magnets are fixed, the linear actuator being structured so that a slider shifts in the axial direction relative to the body casing due to interaction between energized coils and magnets, the linear actuator further comprising a plurality of flat springs each supporting one end or the other end of the slider in the axial direction, each flat spring being elastically deformed relative to the axial direction of the slider.

Abstract: A belt-type stepless transmission is provided with: an input shaft; an input pulley having a stationary sheave and a movable sheave; a transmission shaft disposed parallel to the input shaft; an output pulley having a stationary sheave and a movable sheave; a belt wound around the input pulley and the pulley; an output shaft disposed coaxially with the transmission shaft; and a cam mechanism having a sheave-side cam which is provided and affixed to the movable sheave and a shaft-side cam which is provided and affixed to the output shaft and causing the sheave-side cam and the shaft-side cam to make contact with each other to thereby enable the transmission of torque between the movable sheave and the output shaft and apply an axial pressing force corresponding to the torque to the movable sheave.