Patent application number | Description | Published |
20100307269 | DEVICE FOR REVERSING THE DIRECTION OF AN AUTOMOTIVE WHEELED VEHICLE - A direction-reversing device includes at least one input shaft, an output shaft, and direction-reversing element with a clutch sleeve including a moving clutch sleeve, mounted to move axially on one of the shafts carrying it to enable occupying forward and reverse positions. This device also includes a blocking element that is driven in rotation by the input shaft that carries the moving clutch sleeve, whereby this blocking element is mounted to move between the off position, in which the moving clutch sleeve is able to switch from one operating position to the next, and the on position, in which the blocking element forms an obstacle that prevents the switching of the moving clutch sleeve from one position to the next, being able to switch automatically from the off position to the on position when the input shaft is driven at a speed of rotation that exceeds a predetermined threshold value. | 12-09-2010 |
20100307289 | TRANSMISSION DEVICE AND AUTOMOTIVE VEHICLE EQUIPPED WITH SUCH A TRANSMISSION DEVICE - A transmission device for an automotive vehicle of the type includes, mounted on an output shaft formed by at least two wheel drive half-shafts of a vehicle mounted to freely rotate one relative to the other, at least one rotary gearwheel, and two clutch mechanisms with clutch sleeves arranged on both sides of the gearwheel. This device includes, on the one hand, two clutch sleeve configurations: the driving configuration of the gearwheel, and the engine brake configuration of the gearwheel, and, on the other hand, a declutching control mechanism that includes at least one clutch sleeve pilot unit, coaxial to the gearwheel, mounted relative to the gearwheel that moves angularly between two end positions. The declutching pilot unit can be driven into each of the end positions by the two wheel drive half-shafts when they are driven at a speed of rotation that is different from that of the gearwheel. | 12-09-2010 |
20120096965 | TRANSMISSION DEVICE BETWEEN AN INPUT DRIVE SHAFT AND AN OUTPUT SHAFT, SUCH AS THE SHAFT FOR DRIVING THE WHEELS OF A TRAVELLING MACHINE - Transmission device between an input drive shaft and an output shaft, of the type including a housing inside which are placed at least partially a reduction gear mechanism and a progressive cone clutch mechanism, the reduction gear mechanism including a driving member engaged with a driven member, formed by a gearwheel mounted so as to rotate freely on the output shaft and able to be coupled to/uncoupled from the output shaft via two friction cones of the clutch mechanism, the cones being placed coaxial to the axial bore of the gearwheel and capable of coming, under the action of a control device, into bearing contact with a conical bearing surface of the gearwheel. The conical bearing surfaces of the gearwheel are, relative to the axis of rotation of the gearwheel, offset axially from the gear teeth of the gearwheel and are placed on the same side of the gear teeth. | 04-26-2012 |
20120096971 | TRANSMISSION MECHANISM HOUSING, NOTABLY FOR TRANSMISSION BETWEEN AN INPUT DRIVESHAFT AND AN OUTPUT SHAFT - Transmission mechanism housing ( | 04-26-2012 |
20120100943 | PULLEY FOR BELT TRANSMISSION DEVICE, NOTABLY FOR A BELT SPEED-VARIATOR, AND BELT SPEED-VARIATOR INCORPORATING SUCH A PULLEY - A pulley for a belt transmission device of the type including at least one shaft and two flanges supported by the shaft, one of the flanges, recessed centrally and received so as to fit onto the shaft for an axially free installation being fitted with return elements to return in the direction of the other flange, and delimiting with the other flange a groove of variable dimension inside which it is possible for the belt to be inserted, at least one of the flanges being a flange made of synthetic material furnished, on its surface facing the other flange, with a centrally recessed dish made of metal. The or each dish is, in its zone adjacent to the central recess, separated from the flange that it lines by a space, called a peripheral space, which reduces in the zone the thermal exchanges between flange and dish. | 04-26-2012 |
20120129637 | TRANSMISSION DEVICE FOR SELF-PROPELLED EQUIPMENT AND SELF-PROPELLED EQUIPMENT FITTED WITH SUCH A TRANSMISSION - Transmission device for self-propelled equipment, includes a housing having a driving input shaft transmitting movement to an output shaft, the input shaft bearing a receiving pulley around which pulley a belt transmission is wrapped. The input shaft also bears a component that rotates as one with the shaft and a member for controlling the movement of the pulley along the input shaft in terms of the pulley movement towards or away from the component so that the pulley, which is mounted with freedom to rotate on the input shaft, can be moved from a disengaged position when it is away from the component, into an engaged position when it is close to the component, the pulley having a groove of constant predetermined width for accepting the belt so that when the belt is taut inside the groove, the belt tension is maintained as the pulley moves along the input shaft. | 05-24-2012 |
20120145501 | TRANSMISSION BETWEEN AN ENGINE INPUT SHAFT AND AN OUTPUT SHAFT OF A MOTOR VEHICLE - A transmission between a driving primary shaft and an outlet shaft of a self-propelled machine, includes a housing within which there are housed, at least in part: a stepdown mechanism; two clutch mechanisms, one being progressive and the other being non-progressive with a movable dog; and a clutch control device including first and second clutch control elements. The second clutch control elements include at least one spring blade extending along the outlet shaft, the spring blade being mounted to move axially on the outlet shaft during axial movement of the dog from the unclutched extreme position towards a clutched position as a result of the movable dog bearing thereagainst, the spring blade being drivable axially on the shaft and being elastically deformable between an active position in which the dog comes into abutment against the spring blade, and an inactive position in which the dog slides along the spring blade. | 06-14-2012 |
20150252899 | TRANSMISSION ASSEMBLY FOR A SELF-PROPELLED MACHINE, OF THE TYPE THAT CAN BE POSITIONED BETWEEN THE PRIMARY MOTOR SHAFT AND THE WHEELS OF SAID MACHINE - A transmission assembly for a self-propelled machine includes a transmission housing fitted with an input shaft, an output shaft, a mechanism for reversing the rotational drive direction of the output shaft, and a brake mechanism, each mechanism including a control, the direction reversing and brake controls carried by the housing being mounted respectively movable, one between at least three positions: a neutral, a forward and a reverse position, the other between at least a first braking position and a non-braking position, the brake control being couplable to a brake control member that can be actuated by the operator, in order to shift the brake control from the non-braking to the first braking position. The brake control has a separate second braking position, and the transmission assembly includes return elements capable, in the neutral position of the direction reversing control, of returning the brake control to the second braking position. | 09-10-2015 |