One example provides a low-profile grinding machine for sharpening a cylindrical cutting reel of a mower unit. The grinding machine includes a grinding wheel driveable in a reciprocating fashion along a grinding axis, and a grinding platform. The grinding platform houses the grinding wheel and includes a bottom side to sit on a ground surface and an opposing upper side. The upper side includes a ramp portion sloping upwardly from the ground surface to enable the mower unit to be pushed or driven from the ground surface onto the upper surface to position the cylindrical cutting reel over the grinding wheel for sharpening, the lawn mower positioned with a rotational axis of the cylindrical cutting reel extending along the grinding axis.
One example provides a low-profile grinding machine for sharpening a cylindrical cutting reel of a mower unit. The grinding machine includes a grinding wheel driveable in a reciprocating fashion along a grinding axis, and a grinding platform. The grinding platform houses the grinding wheel and includes a bottom side to sit on a ground surface and an opposing upper side. The upper side includes a ramp portion sloping upwardly from the ground surface to enable the mower unit to be pushed or driven from the ground surface onto the upper surface to position the cylindrical cutting reel over the grinding wheel for sharpening, the lawn mower positioned with a rotational axis of the cylindrical cutting reel extending along the grinding axis.
B24B 3/42 - Affûtage des arêtes tranchantes, p. ex. des outilsAccessoires à cet effet, p. ex. porte-outils des lames coupantes à arête hélicoïdale, p. ex. pour tondeuses à gazon
3.
LAWN MOWER BLADE GRINDING MACHINE WITH CONNECTED CONTROLS
One aspect provides a control system for a lawn mower blade grinding machine, the control system including one or more control devices, one or more processors, and one or more non-transitory computer readable medium to store computer executable instructions. The computer executable instructions, when executed by the one or more processors, cause the control device to perform operations including receiving user inputs from a first user device, the user inputs including parameters which define a requested grinding operation, directing performance of the grinding operation by the lawn mower grinding machine at least via the one or more control devices, and transmitting a status notification of the requested grinding operation to the first user device.
B24B 3/36 - Affûtage des arêtes tranchantes, p. ex. des outilsAccessoires à cet effet, p. ex. porte-outils des lames coupantes
B24B 3/42 - Affûtage des arêtes tranchantes, p. ex. des outilsAccessoires à cet effet, p. ex. porte-outils des lames coupantes à arête hélicoïdale, p. ex. pour tondeuses à gazon
B24B 51/00 - Systèmes pour la commande automatique d'une série d'opérations successives du meulage d'une pièce
4.
LAWN MOWER BLADE GRINDING MACHINE WITH CONNECTED CONTROLS
One aspect provides a control system for a lawn mower blade grinding machine, the control system including one or more control devices, one or more processors, and one or more non-transitory computer readable medium to store computer executable instructions. The computer executable instructions, when executed by the one or more processors, cause the control device to perform operations including receiving user inputs from a first user device, the user inputs including parameters which define a requested grinding operation, directing performance of the grinding operation by the lawn mower grinding machine at least via the one or more control devices, and transmitting a status notification of the requested grinding operation to the first user device.
B24B 51/00 - Systèmes pour la commande automatique d'une série d'opérations successives du meulage d'une pièce
B24B 3/42 - Affûtage des arêtes tranchantes, p. ex. des outilsAccessoires à cet effet, p. ex. porte-outils des lames coupantes à arête hélicoïdale, p. ex. pour tondeuses à gazon
5.
AIR INJECTION MACHINE WITH PNEUMATIC POWER STEERING
One example provides a ride on air injection machine including one or more steerable wheels, a compressed air system providing compressed air, one or more air inject tines to inject compressed air from the compressed air system into the grounds, and a steering system. The steering system includes a steering wheel, a cylinder coupled to the steerable wheels, the cylinder including opposing internal chambers and being moveable to steer the steerable wheels and a control valve assembly to direct compressed air from the compressed air system to the internal chambers and to bleed compressed air from the internal chambers based on a position of the steering wheel to move the cylinder steer the steerable wheels.
B62D 5/06 - Direction assistée ou à relais de puissance à fluide, c.-à-d. au moyen d'un fluide sous pression produisant toute la force nécessaire, ou la plus grande partie de celle-ci, pour commander la direction du véhicule
B62D 5/07 - Alimentation en fluide sous pression pour la direction du véhicule ainsi que pour d'autres organes
A pneumatic steering system includes a cylinder movable in relation to a through rod, steering tie rods coupled to the cylinder, a control valve that controls motion of the cylinder in relation to the through rod, a spring-biased pivoting actuator operably coupled to a steering linkage and to a control input of the control valve. The actuator is pivotally mounted to a structure attached to the cylinder. The control valve is attached to that structure. The steering linkage is an articulated assembly that transforms rotation of the steering column into pivoting movement of the actuator.
B62D 5/09 - Direction assistée ou à relais de puissance à fluide, c.-à-d. au moyen d'un fluide sous pression produisant toute la force nécessaire, ou la plus grande partie de celle-ci, pour commander la direction du véhicule caractérisée par les moyens d'actionnement des valves
A mower reel grinding apparatus including at least one bracket moveable in a horizontal plane along a positioning axis to any one of a number of predetermined positions and configured to releasably secure to a pivot mechanism of a plurality of types of mower units, the pivot mechanism having a pivot axis, each type of mower unit including a cutting reel positioned at a known location relative to the pivot axis, and each of the predetermined positions corresponding to at least one type of mower unit of the plurality of types of mower units, wherein the at least one bracket is moved to the predetermined position corresponding to the type of mower unit secured thereto such that the cutting reel is positioned at a desired grinding position along the positioning axis when the pivot axis is secured to the bracket.
B24B 3/42 - Affûtage des arêtes tranchantes, p. ex. des outilsAccessoires à cet effet, p. ex. porte-outils des lames coupantes à arête hélicoïdale, p. ex. pour tondeuses à gazon
B24B 3/36 - Affûtage des arêtes tranchantes, p. ex. des outilsAccessoires à cet effet, p. ex. porte-outils des lames coupantes
A device and method for sharpening a mower blade are provided, in which a mounting device for mounting a rotary blade having two opposite cutting edges to be sharpened, wherein the mounting device is capable of positioning the blade in a first fixed state and a second, axially pivoting state. One or more grinding head assemblies are each positioned on an opposite end of the blade, wherein the grinding head assemblies respectively grind the two opposite cutting edges to be sharpened. A control system controls movement of the two grinding head assemblies. The mounting device positions the blade in the first fixed state to enable the two grinding head assemblies to grind the cutting edges in a direction substantially parallel to the cutting edges of the blade to perform a straight grind, and then may position the blade in the second axially pivoting state to enable the blade to pivot around its blade rotation axis away from the grinding head assemblies upon completion of the straight grind, thereby forming a curve at the end of each cutting edge. The mounting assembly also holds the blade in a third, freely rotating state in which the blade may substantially freely rotate around its blade rotation axis to enable balancing of the blade after sharpening.
