Abstract:
An apparatus, systems and methods for automatically disengaging and re-engaging a cutting implement(20) on a mowing machine (1) by disconnecting and connecting, respectively, electrical power to an implement drive device (24). Power to the implement drive device (24) is disconnected or connected according to gear positions of transmission control levers (32, 34) provided on the mowing machine. At designated gear positions, cut-out switches (60) associated with the implement drive device (24) are effective to interrupt power to the implement drive device (24). Repositioning the control levers (32, 34) to non-designated gear positions restores power to the implement drive device (24). The automatic disengagement/re-engagement of the cutting implement (20) based on the gear position of transmission control levers (32, 34) may be used for two lever zero-turn-ride-on mowing machines (1) or more traditional single lever ride-on mowing machines.
Abstract:
Control circuits for a riding lawn mower. The control circuits provide an override condition for selectively allowing the cutting blades of the lawn mower to operate when the vehicle is traveling in reverse. The circuits incorporate an ignition switch, an override switch, a vehicle reverse switch, and an operator presence switch. In one aspect of the invention, the control circuits disable the engine when the vehicle is placed in reverse with the PTO engaged and without the override condition having been established. In another aspect of the invention, an electric PTO clutch is disabled when the vehicle is placed in reverse with the PTO engaged and without the override condition having been established. The override condition is terminated when the vehicle is turned off, or when the operator deactivates the manual override switch.
Abstract:
A riding mower frame (10) is provided which is adapted to receive various types and sizes of transmissions (9) and engines. The frame (10) has an adjustable engine mounting plate for supporting a first engine that can be of any size or type chosen with sound engineer or judgment. The adjustable mounting plate may also be adjusted to, alternatively, support a second engine that can also be of any size or type chosen with sound engineer and judgment. Furthermore, the frame has two transmission mounting plates (40,41) with generic mounting surfaces for supporting a first transmission (9) that can be of any size or type chosen within sound engineering judgment. The generic mounting surfaces may, alternatively, support a second transmission that can also be of any size or type chosen with sound engineering judgment.
Abstract:
A transmission is provided that can be selectively installed in a lawn care vehicle for use with a plurality vehicle engines. The transmission includes a sensor and a control device for reading the rotational motion of a transmission gear and calculating the RPM s of the vehicle engine based upon the sensor data. The transmission also includes a bi-directional overrunning clutch that is received within a power input gear and an electric clutch brake assembly that is aligned with a bearing member that is partially received by the transmission housing. The transmission includes a stackable pump for use in powering auxiliary equipment. Additional hydraulic pumps can be stacked onto existing units to increase the hydraulic output capacity of the transmission.
Abstract:
A belt release mechanism (50) is provided for use with the belt drive system of a lawn mower (10). The lawn mower (10) includes an engine (14), a drive pulley (22) that is selectively rotated by the engine (14), a driven pulley (24) for using in driving an associated implement, and a belt having an inner surface that selectively operatively connects the drive pulley to the drive pulley. The driven pulley (24) has a pulley surface (36) that forms a pulley groove (34) for use in selectively operatively receiving the belt (28). The belt release mechanism (50) is used to selectively release the drive pulley (22) from operatively receiving the belt (28). The belt release mechanism (50) is selectively positioned between the pulley surface (36) and the inner surface (40) of the belt (28).
Abstract:
A mounting (12) for the throttle lever (13) and the dead-man control lever (22) to the handle (11) of an appliance such as a lawn mover, and including a locking bolt (30) carried by a leaf spring (27) to interfere with the movement of the dead-man control lever (22) so as to insure against accidental or unintentional movement of the dead-man control from one position to another.
Abstract:
Mécanisme d'embrayage et de frein pour une tondeuse du type rotatif ou analogue dans lequel une plaque de frein (28) peut être sollicitée contre des éléments de frottement (27) et être éloignée de ceux-ci, ces éléments de frottement (27) pouvant également engager une plaque d'embrayage (16), les surfaces des éléments de frottement (27) étant disposées de manière à assurer alternativement une action de freinage et d'embrayage.
Abstract:
A system and method for proximity determination can include receiving an RF signal transmitted from a target location, the receiving performed by an antenna of an autonomous moving device, extracting received signal strength indicator (RSSI) values by processing the received RF signal, receiving distance measurements provided by a sensor associated with the autonomous moving device and storing the distance measurements in the memory of the autonomous device. The extracted RSSI values can be correlated the with the distance measurements to obtain a proximity value. A distance to the target location can be determined based on the proximity values.
Abstract:
Line trimmers and/or edgers for weed and vegetation are discussed. One example embodiment comprises: a trimmer head (230) configured to rotate a portion of a trimmer line (220) comprising a cutting end of the trimmer line; a trimmer motor (260) configured to drive the rotation of the trimmer head; a continuous line feed mechanism (210) configured to continuously feed the trimmer line into the trimmer head while the continuous line feed mechanism is active; and one or more line feed activation mechanisms configured to control an activation and a deactivation of the continuous line feed mechanism.
Abstract:
An obstruction sensing system for an autonomous device (100) can include a chassis (102) including a drive system for movement relative to a working surface, a shell (104) resiliently mounted to the chassis (102) and movable relative to the chassis (102) in response to a force applied to the shell (104), a sensor assembly (200) comprising a single sensor (202) disposed on the chassis (102) and a magnet (204) disposed on and movable with the shell (104) in response to the force applied to the shell (104), wherein the sensor (202) is configured to output a three-axis magnetic flux vector in response to a movement of the magnet (204). A sensing method for an autonomous device (100) can include detecting a polarity change in the sensor (202) and in response determining that an obstruction has been detected, evaluating, by a processing component (116), a three-axis magnetic flux vector, and calculating at least one of a direction and a magnitude of a deflection based on the evaluation.