Abstract: Disclosed is a device (1) for driving either rotation or translation of a shaft (2). It comprises an electric motor (3) that comprises a stator (4) and a single rotor (5) supporting the shaft (capable of being turned in two directions). Through an activatable/deactivatable system (9) which engages or disengages at least one element (71, 72), the device (1) is either in the first configuration for rotation of the shaft (2) or in the second configuration for a relative axial movement between shaft and static portions of the device (1). The single rotor (5) is a versatile rotor through selection between the first configuration or the second configuration.

Abstract: The transmission (1) comprises a housing (2), a first motor (41), a second motor (42), a first and a second input shaft (51, 52), respectively able to be driven in rotation, one (51) by the first motor (41), the other (52) by the second motor (42), two clutch mechanisms (71, 72) and two reduction gears (91, 92), wherein the output shaft (31, 32) is formed by two output shaft sections (31, 32) interconnected such that they rotate freely, the clutch mechanisms (71, 72) are each equipped with a clutch control member operable by a user for allowing the transmission, in the engaged state of the first clutch mechanism (71), of the rotational movement of the first input shaft (51) to the first output shaft section (31), and the transmission, in the engaged state of the second clutch mechanism (72), of the rotational movement of the second input shaft (52) to the second output shaft section (32), and the reduction gears (91, 92) are at least partially received inside the housing (2).

Abstract: A transmission housing (2) including two housing elements (9) that can be positioned to press against each other and that in the assembled state define: a cavity (13); a shaft (6) projecting at least in part from the housing; a motion transmission mechanism (30) for transmitting motion to said shaft (6), the motion transmission mechanism (30) being housed at least in part inside the cavity (13) of the housing (2); and adhesive connection means (16) for connecting together housing elements (9) that are arranged in the zone where said housing elements (9) are pressed together and referred to as a join plane (10).

Abstract: The transmission (1) comprises a housing (2), a first motor (41), a second motor (42), a first and a second input shaft (51, 52), respectively able to be driven in rotation, one (51) by the first motor (41), the other (52) by the second motor (42), two clutch mechanisms (71, 72) and two reduction gears (91, 92), wherein the output shaft (31, 32) is formed by two output shaft sections (31, 32) interconnected such that they rotate freely, the clutch mechanisms (71, 72) are each equipped with a clutch control member operable by a user for allowing the transmission, in the engaged state of the first clutch mechanism (71), of the rotational movement of the first input shaft (51) to the first output shaft section (31), and the transmission, in the engaged state of the second clutch mechanism (72), of the rotational movement of the second input shaft (52) to the second output shaft section (32), and the reduction gears (91, 92) are at least partially received inside the housing (2).

Abstract: A transmission housing (2) including two housing elements (9) that can be positioned to press against each other and that in the assembled state define: a cavity (13); a shaft (6) projecting at least in part from the housing; a motion transmission mechanism (30) for transmitting motion to said shaft (6), the motion transmission mechanism (30) being housed at least in part inside the cavity (13) of the housing (2); and adhesive connection means (16) for connecting together housing elements (9) that are arranged in the zone where said housing elements (9) are pressed together and referred to as a join plane (10).

Abstract: A variable-speed belt drive includes at least: two substantially parallel shafts; two variably interspaced flange pulleys, one driving, the other driven, each carried by a shaft and interconnected by the belt, the flanges of the driving pulley being movably mounted in a variably interspaced manner via a speed variation device including control elements for bringing the flanges of the driving pulley closer together, and control assisting elements including a cam formed by two coaxial plates having sliding-contact inclined ramps, one plate being rotatably fixed to the movable flange of the driving pulley, the other being rotatably fixed to the shaft carrying the driving pulley, the distance between the plates becoming wider in the direction of the flanges of the driving pulley coming together under the effect of the transmitted torque; and elements formed by a simple spring for recalling the flanges of the driven pulley in the close position.

Abstract: A transmission for a walk-behind wheeled vehicle, the transmission being of the type including at least one casing (2) housing a driver member (3), equipped with rotary drive motor means (4), a rotary driven member (5), two wheel drive shafts (6A, 6B) in alignment, two clutch mechanisms (8) each of which is disposed between the driven member (5) and a wheel drive shaft (6A; 6B), each clutch mechanism (8) being activated by the driven member (5) being driven in rotation forwards, and deactivatable by the wheel drive shaft (6A; 6B) with which it co-operates being driven in rotation forwards, when the speed of rotation of the wheel drive shaft (6A, 6B) is greater than the speed of rotation of the driven member (5).

Abstract: A variable-speed belt drive includes at least: two shafts that can be positioned in a substantially parallel manner; two variably interspaced flange pulleys, one driving, the other driven, one carried by one, the other by the other of the shafts, the pulleys being interconnected by the belt; a speed-variation device controlled by the action of the flanges of the driving pulley being brought together or interspaced; and elements for recalling the flanges in a close position. The speed-variation device is manually controlled and the shaft of the driven pulley is provided with at least one idler member having an outer peripheral surface mounted on the shaft in a freely rotating manner, and around which the belt can wind at least partially in the interspaced position of the flanges of the driven pulley, corresponding to the position with the smallest diameter for the winding of the belt around the shaft.

Abstract: The invention relates to a control device (2) for controlling a vehicle having an electric motor (1), the control device comprising a control system (21, 22, 23) provided with one or more levers movable between a minimum control position and a maximum control position, and a control unit (3) for controlling the motor. Said control unit (3) includes acquisition means (31) for acquiring a signal representative of the position of said control system, determination means (32) for determining a setpoint speed value corresponding to said acquired signal, as a function of a maximum setpoint speed value associated with the maximum control position, and control means (33) for controlling the motor as a function of the determined setpoint speed. Said control device has adjustment means (34) arranged with the lever(s) of the system to enable the maximum setpoint speed value to be adjusted without taking a hand away from the lever(s). The invention also provides a corresponding vehicle.

Abstract: A variable-speed belt drive includes at least: two shafts that can be positioned in a substantially parallel manner; two variably interspaced flange pulleys, one driving, the other driven, one carried by one, the other by the other of the shafts, the pulleys being interconnected by the belt; a speed-variation device controlled by the action of the flanges of the driving pulley being brought together or interspaced; and elements for recalling the flanges in a close position. The speed-variation device is manually controlled and the shaft of the driven pulley is provided with at least one idler member having an outer peripheral surface mounted on the shaft in a freely rotating manner, and around which the belt can wind at least partially in the interspaced position of the flanges of the driven pulley, corresponding to the position with the smallest diameter for the winding of the belt around the shaft.

Abstract: The invention relates to a control device (2) for controlling a vehicle having an electric motor (1), the control device comprising a control system (21, 22, 23) provided with one or more levers movable between a minimum control position and a maximum control position, and a control unit (3) for controlling the motor. Said control unit (3) includes acquisition means (31) for acquiring a signal representative of the position of said control system, determination means (32) for determining a setpoint speed value corresponding to said acquired signal, as a function of a maximum setpoint speed value associated with the maximum control position, and control means (33) for controlling the motor as a function of the determined setpoint speed. Said control device has adjustment means (34) arranged with the lever(s) of the system to enable the maximum setpoint speed value to be adjusted without taking a hand away from the lever(s). The invention also provides a corresponding vehicle.

Abstract: A transmission for a walk-behind wheeled vehicle, the transmission being of the type including at least one casing (2) housing a driver member (3), equipped with rotary drive motor means (4), a rotary driven member (5), two wheel drive shafts (6A, 6B) in alignment, two clutch mechanisms (8) each of which is disposed between the driven member (5) and a wheel drive shaft (6A; 6B), each clutch mechanism (8) being activated by the driven member (5) being driven in rotation forwards, and deactivatable by the wheel drive shaft (6A; 6B) with which it co-operates being driven in rotation forwards, when the speed of rotation of the wheel drive shaft (6A, 6B) is greater than the speed of rotation of the driven member (5).

Abstract: A variable-speed belt drive includes at least: two substantially parallel shafts; two variably interspaced flange pulleys, one driving, the other driven, each carried by a shaft and interconnected by the belt, the flanges of the driving pulley being movably mounted in a variably interspaced manner via a speed variation device including control elements for bringing the flanges of the driving pulley closer together, and control assisting elements including a cam formed by two coaxial plates having sliding-contact inclined ramps, one plate being rotatably fixed to the movable flange of the driving pulley, the other being rotatably fixed to the shaft carrying the driving pulley, the distance between the plates becoming wider in the direction of the flanges of the driving pulley coming together under the effect of the transmitted torque; and elements formed by a simple spring for recalling the flanges of the driven pulley in the close position.