Lawn-Mowers TRIZ Cases
- Curved Cutting Blades for Low-Noise Electric Lawnmowers
Curved cutting blades reduce turbulence to lower noise levels below 70 dB while maintaining grass cutting efficiency at lower rotational speeds.
- Metal Rod Blade Trimmer Head with Ball-Joint Rotation
Segmented metal rods replace nylon string in a ball-joint trimmer head, resolving the trade-off between thick brush cutting power and environmental pollution.
- Grass Mower Adjustable Height Support Member
An adjustable support member with insertable coupling resolves frame complexity by enabling two distinct mowing heights without multiple configurations.
- Permanent Brake Disc for Lawnmower Drive
A brake pad biased by a spring maintains permanent contact with an annular brake disc on the drive shaft.
- Rotary Cutter Blade Pivot Mechanism for Obstruction Avoidance
Pivotable cutter blades with pin protector recesses rotate around ground obstructions, preventing direct impact on fasteners while extending blade service life.
- Mower Height Adjustment via Walking Motor
A mower uses a second motor to drive walking wheels and adjust cutting assembly height.
- Reel Mower Cutting Bar Release Mechanism
A movable cutter bar clears lodged debris by shifting away from the reel, then returns to position using elastic force.
- Variable Speed Lawn Mower Flap Control
A lawn mower adjusts cutter blade rotation and flap angle to optimize grass clippings distribution.
- Asymmetric Baffle Mower Deck for Grass Stagnation
An asymmetric baffle design prevents cut grass stagnation while eliminating conspicuous streaks on mowing marks.
- Lawn Mowing Robot Mapping Correction Trajectory Rewinding
Rewinds a lawn mowing robot to an original mapping trajectory intersection point for precise position correction.
- Diverter Valve Hydraulic Circuit for Grass Mower Speed Control
A hydraulic diverter valve redirects fluid flow between sub-circuits to maintain cutting unit rotational speed.
- Central Motor Layout for Electric Grass Cutting Machine
A central electric motor drives rear wheels through a gear transmission, reducing the frequency of motor usage and optimizing space between the wheels.
- Pedestal Handle Deck Height Control for Stand-On Mowers
Floating adjustment apertures allow the mower deck to follow ground contours, preventing lawn scalping while maintaining precise height control.