摘要:
The invention is a working vehicle that has high practicality and a high degree of freedom of a turning operation. A lawn mowing vehicle includes a lawn mowing unit that includes drum wheels driven so as to rotate about an axis Ax1 extending in a vehicle width direction as a rotational center, a frame that is connected to the lawn mowing unit, and a steering drive device that is provided in the frame. The steering drive device includes a pair of steered wheels that is disposed in the vehicle width direction, steering units that can independently steer the pair of steered wheels respectively, and wheel driving units that can rotationally drive the pair of steered wheels.
摘要:
Disclosed is a lawn mower device having a drive configured to rotate a shaft in a first and second direction. A drive wheel is coupled to the shaft and is coupled to a driven wheel by a drive belt. A tensioning system is shown coupled to the drive belt. The tensioning system has a first idler plate configured to bias a first idler pulley against the drive belt when the drive is rotating the shaft in the first direction and a second idler plate configured to bias a second idler plate against the drive belt when the drive is rotating the shaft in a second direction. A brake mechanism is further coupled to the tensioning system. The brake mechanism is configured to resist the rotation of the driven wheel.
摘要:
A mower including a housing having a cutting apparatus such as a flail mower rotatably mounted therein. The mower includes a detector which determines during mower raising when the housing is positioned at least a predetermined distance above the ground surface directly below the housing. After passage of a time period during which the detector continuously detects that the housing is positioned at least the predetermined distance from the ground, a signal is sent to an actuator mechanism which interrupts the delivery of power to the motor rotating the cutting apparatus such that the flail mower comes to a stop. In one embodiment, a locking mechanism can be provided which prevents power from being reintroduced to the mower motor after the mower is lowered until the operator purposefully disengages the locking mechanism.
摘要:
A motor-powered lawn mower having a quick connect and disconnect pin interposed between the motor and the mower. A motor support member with a grease cavity is provided for receiving the motor, and the motor and the mower reel shaft are on the same axis. The grease cavity has an air vent which is incorporated in the quick release pin.
摘要:
Device for connecting a driving element to a driven element so as to be locked against mutual rotation, and for separating the same, including a friction disc having two friction surfaces, the disc being fixed against radial movement and shiftable in axial direction, a device for stopping the axial shift of the disc in direction away from the driving element, the driven element being in the form of axially shiftable friction parts being coaxial and engageable with the friction disc and rotatable relative thereto, each of the friction parts having a counter-friction surface disposed thereon, a connecting device for transmitting torque between the friction parts, the connecting device being elastic in axial direction and stiff in direction of rotation of the friction parts, and a device for disengaging one of the friction parts from the friction disc.
摘要:
A self-propelled grass mower machine has a laterally projecting helically bladed cutter, a driving motor for effecting propulsion of the machine and driving of the cutter reel and transmission means for driving the cutter reel from the motor, the transmission means including a driven member, a transversely disposed driven shaft and universal couplings connecting respective opposite ends of the driven shaft to the reel and, adjacent the side of the machine remote from the reel to said driven member of the transmission means, the axes of the shaft and the reel being mutually inclined at a large obtuse angle.
摘要:
A drive mechanism for driving a plurality of independently rotatable members, comprising a plurality of fluid motors each adapted to be connected to a respective one of the rotatable members, a plurality of variable delivery pumps each connected to a respective one of the fluid motors or to a respective group of the motors to supply fluid thereto, a prime mover arranged to drive the pumps, and control means operable to vary simultaneously the rates of delivery of fluid from each of the pumps thereby to vary the speed of rotation of the respective motors or groups of motors while maintaining constant at a preset value the ratio of the rates of delivery of respective pumps. The mechanism can be used in a lawn mower, having traction motors supplied from one pump and motors driving the cutting cylinders supplied from a second pump, the rates of delivery of the pumps being kept in constant proportion to give a constant number of cuts per yard for the lawn mower.
摘要:
A power-driven grass cutting or the like machine having an operator''s handle formed of an upstanding support and two handle bars which are rotatably mounted on the support. Two driving wheels upon which the machine is supported are each provided with a braking mechanism and the braking mechanisms are coupled to respective handle bars. Steering of the machine is effected by rotating one handle bar to operate the associated braking mechanism. Braking is effected by rotating both handle bars together. A further control is mounted on the handle bars and can be operated whilst steering or braking.
摘要:
A motor is clamped on a fixed shaft extending between the wheels of a lawn mower. A belt is entrained about both a drive or first pulley on the motor shaft and a driven or second pulley on a rotary reel shaft that also extends between the wheels. An idler pulley is mounted on a shaft attached to the outer housing or frame such that the belt may be tightened by adjusting the clamp that secures the motor to the fixed shaft. The second pulley can be drivingly attached to the reel shaft by various means such as radial set screws disposed in a hub of the pulley and/or a protuberance formed on the pulley for cooperative engagement with the cutting reel of the mower to thereby turn the shaft and reel. Two unidirectional clutches (a right and a left) are arranged and oriented such that reel rotation in a forward direction will drive the wheels in a forward direction.
摘要:
A lawnmower which is driven by a battery-fed electric motor, a pair of side frames carries the cutters and a roller adapted to roll over the lawn to be mowed. The batteries are accommodated in the roller which is in the form of a hollow cylinder.