A01D34/828

HIGH-EFFICIENCY CUTTING SYSTEM
20170367257 · 2017-12-28 ·

A high-efficiency cutting system for an autonomous mower provides a multiple blade tip cutting radius for a cleaner cut, and more complete mow. The system includes a spinning blade disk provided within a housing including a vertical standoff. The blade disk includes a first pair of cutting blades located between the center of the blade disk and the circumference of the blade disk, and a second pair of cutting blades located radially inward from the first pair of cutting blades. The cutting blades extend downward and away from the blade disk at an angle.

Portable work apparatus

The disclosure relates to a portable work apparatus. The work apparatus includes a spacer which is arranged on the front housing and has a contact region. The contact region has a maximum distance, as measured radially, with respect to the rotational axis of the output shaft, the distance being greater than the cutting radius of the cutting tool in a first, non-deformed state of the spacer. The spacer is elastically deformable. The spacer is elastically deformed in a second state in such a manner that the maximum distance of the contact region is at most the same size as the cutting radius, and the spacer is arranged completely outside the cutting plane of the cutting tool.

Garden-Implement-Handle Device
20170332541 · 2017-11-23 ·

A system includes a garden implement handle device that is disposed on a garden care machine. The garden implement handle device has an operating unit. The operating unit has an operating element that is configured for actuation by an operator. The garden implement handle device has a further operating element that is configured for actuation by the operator. The system further includes an electronics unit configured to switch an energy supply of a drive unit based on the actuation of the operating element and an actuation of the further operating element. The operating element and/or the further operating element are a touch-sensitive electronic operating element.

IGNITION SYSTEM WITH SINGLE ACTION START FAULT CORRECTION
20170335818 · 2017-11-23 ·

A method of enabling operation of an ignition system for outdoor power equipment may include monitoring status of a plurality of switches associated with respective components of the equipment where at least one of the respective components corresponds to one or more binary start fault operators, and setting a start enabling status for the one or more 5 binary start fault operators responsive to actuation of a start fault clearance operator.

Blade guard for a robot lawnmower
09807930 · 2017-11-07 · ·

An autonomous robot lawnmower includes a chassis, a drive supporting the chassis above a lawn and configured to maneuver the robot lawnmower about the lawn, and a motorized lawn cutting assembly including one or more blades. The robot lawnmower further includes a first blade guard movably mounted to a first lateral side of the chassis and extending from the chassis toward the lawn, and a second blade guard movably mounted to a second lateral side of the chassis and extending from the chassis toward the lawn.

BLADE CONTROL ASSEMBLY, LAWNMOWER, AND METHOD FOR OPERATING A BLADE CONTROL ASSEMBLY
20230172101 · 2023-06-08 ·

A blade control assembly for a lawnmower can include a controller configured to selectively transition between a sleep mode and an operational mode. The controller can be configured to transition from the sleep mode to the operational mode when the controller receives a first ON signal. The controller can be configured to cause a power source to transition from an idle state in which a blade of the lawnmower is stopped to a driving state in which the power source rotationally drives the blade when the controller receives the first ON signal and a second ON signal. The controller can be configured to cause the power source to stop rotation of the blade and cause to power source to transition to the idle state after the second ON signal terminates, and can be configured to transition from the operational mode to the sleep mode after the second ON signal terminates.

RIDING TYPE VEHICLE

A riding type vehicle has a driving source, a left wheel and a right wheel, a transmission configured to receive power from the driving source to independently operate and drive the left wheel and the right wheel with regard to a rotation direction and a rotation speed, and caster wheels separately provided in a front-rear direction with respect to the left wheel and the right wheel, the riding type vehicle including two first sensors arranged on both left and right sides more to a front side than a rear end of the vehicle, the two first sensors configured to detect an obstacle target located on a rear side, the obstacle target being a target becoming an obstacle at the time of reversing or turning.

WORKING MACHINE

A working machine according to one aspect of the present disclosure comprises an operation rod, a leading end unit, a rear end unit, and a drive permitter. The operation rod is configured to be transformable between an extended state and a non-extended state. The leading end unit is provided at one end of the operation rod. The leading end unit comprises a motor configured to drive a working element. The rear end unit is provided at the other end of the operation rod. The rear end unit comprises a controller configured to control driving of the motor. The drive permitter is configured to permit driving of the motor when the operation rod is in the extended state and not to permit driving of the motor when the operation rod is in the non-extended state.

APPARATUS FOR CUTTING VEGETATION
20220039321 · 2022-02-10 ·

A rotary vegetation cutting unit having: a frame having a drive shaft; at least one cutting element that moves with the frame; and a debris blocking assembly on the frame with a unitary part that moves relative to the frame in opposite directions around an operating axis. The unitary part is configured to deflect away from the at least one cutting element objects approaching the at least one cutting element in a radial direction. The rotary vegetation cutting unit further has a bearing assembly including: a) a bearing that guides movement between the unitary part and the shaft; and b) a holder for the bearing. The rotary vegetation cutting unit is configured so that any debris spaced radially from the rotary vegetation cutting unit is required to traverse a non-straight path to contact the bearing.

Mower spindle brake disengagement mechanism

A mower spindle brake disengagement mechanism includes belt driven pulleys on spindles supported by a rotary mower deck, brakes adjacent the pulleys, each of the brakes on a pivot arm biased to a brake engaged position, and a plurality of Bowden cables, each Bowden cable connected between one of the pivot arms and a single lever that may be pivoted to retract the Bowden cables to move the brakes on the pivot arms to a brake disengaged position.