A hand-held power tool includes: a shiftable transmission for driving a drive shaft, which transmission is situated in a gear housing and is shiftable at least between a first gear and a second gear via a shifting member; and a pivotably supported actuating element, which is configured as a bistable spring element and situated, at least in sections, in the area between the shifting member and the gear housing, is associated with the shifting member. The bistable spring element is actuatable for the gear shifting, and assumes a stable shift position in at least one shift position of the shifting member associated with the first or second gear, and assumes an unstable position in an intermediate position of the shifting member which is situated between shift positions of the shifting member associated with the first and second gears.

A hand-held power tool includes: a shiftable transmission for driving a drive shaft, which transmission is situated in a gear housing and is shiftable at least between a first gear and a second gear via a shifting member; and a pivotably supported actuating element, which is configured as a bistable spring element and situated, at least in sections, in the area between the shifting member and the gear housing, is associated with the shifting member. The bistable spring element is actuatable for the gear shifting, and assumes a stable shift position in at least one shift position of the shifting member associated with the first or second gear, and assumes an unstable position in an intermediate position of the shifting member which is situated between shift positions of the shifting member associated with the first and second gears.

A device for switching at least two partial gear mechanisms, namely a first partial gear mechanism and a second partial gear mechanism, each having at least two gear stages. The device comprising an actuator connected for drive purposes to a rotatable component, a first switching device for switching the first partial gear mechanism and a second switching device for switching the second partial gear mechanism both of which are arranged on the rotatable component, and an electric drive axle for a motor vehicle comprising a first drive wheel, a second drive wheel and such a device.

In a vehicle drive transmission device, a transmission includes an intermesh first engagement device, a frictional second engagement device, a first drive device configured to drive the first engagement device, and a second drive device configured to drive the second engagement device. The first drive device includes a first shift drum, a first cam mechanism configured to convert rotational motion of the first shift drum into linear motion, and a first transmission mechanism configured to perform the linear motion. The second drive device includes a second shift drum, a second cam mechanism configured to convert rotational motion of the second shift drum into linear motion, and a second transmission mechanism configured to perform the linear motion. The first shift drum and the second shift drum are connected so as to rotate integrally with each other via a drive shaft. A drum drive source is provided to drive the drive shaft.

In a vehicle drive transmission device, a transmission includes an intermesh first engagement device, a frictional second engagement device, a first drive device configured to drive the first engagement device, and a second drive device configured to drive the second engagement device. The first drive device includes a first shift drum, a first cam mechanism configured to convert rotational motion of the first shift drum into linear motion, and a first transmission mechanism configured to perform the linear motion. The second drive device includes a second shift drum, a second cam mechanism configured to convert rotational motion of the second shift drum into linear motion, and a second transmission mechanism configured to perform the linear motion. The first shift drum and the second shift drum are connected so as to rotate integrally with each other via a drive shaft. A drum drive source is provided to drive the drive shaft.

A transmission according to an embodiment includes a shift fork swingably supported by a case to move a movable element in an axial direction in accordance with the motion of a second shaft to two shift positions; two first protrusions provided on the second shaft and spaced apart from each other in the axial direction; and a second protrusion provided on the shift fork, and when the second shaft is in one of select positions, is positioned between the two first protrusions and overlaps with the first protrusions viewed from the axial direction. A protruding direction of the first protrusions and a protruding direction of the second protrusion are orthogonal to a swinging center of the shift fork when viewed in the axial direction. The second protrusion protrudes from the shift fork toward the swinging center. The second shaft is positioned between the second protrusion and the swinging center.

A transmission according to an embodiment includes a shift fork swingably supported by a case to move a movable element in an axial direction in accordance with the motion of a second shaft to two shift positions; two first protrusions provided on the second shaft and spaced apart from each other in the axial direction; and a second protrusion provided on the shift fork, and when the second shaft is in one of select positions, is positioned between the two first protrusions and overlaps with the first protrusions viewed from the axial direction. A protruding direction of the first protrusions and a protruding direction of the second protrusion are orthogonal to a swinging center of the shift fork when viewed in the axial direction. The second protrusion protrudes from the shift fork toward the swinging center. The second shaft is positioned between the second protrusion and the swinging center.

A roller position control mechanism including a steering element, positioned inside the bearing of each roller and provided with a skew shaft and a steering shaft defining an angle therebetween. A spider element fixes the steering element to a longitudinal shaft of the CVT and a control ring element interconnects the steering elements of the various rollers. Movement of the control ring element with respect to the spider element translates to a tilting movement of the rollers, thanks to the angle between the skew and steering shafts.

A roller position control mechanism including a steering element, positioned inside the bearing of each roller and provided with a skew shaft and a steering shaft defining an angle therebetween. A spider element fixes the steering element to a longitudinal shaft of the CVT and a control ring element interconnects the steering elements of the various rollers. Movement of the control ring element with respect to the spider element translates to a tilting movement of the rollers, thanks to the angle between the skew and steering shafts.

A method controls a power split transmission structure to direct drive power from a drive through at least three interfaces to at least one output to supply connected consumers. The transmission structure has at least two variator paths each comprising a summation gearbox downstream of the interfaces in which drive power is varied via a mechanical and an electrical path. The transmission structure has power electronics or a hydraulic control device including at least three electric or hydraulic machines arranged in parallel with the summation gearbox of each variator path downstream of the interfaces. The method simultaneously controls the power electronics or a hydraulic control device and the electric or hydraulic machines in such a way that fluctuations in the power supply to the consumers are compensated for by the electric or hydraulic machines by regulating, via a control device, the summation gearbox of each of the variator paths and modifying a torque, a speed, or both, of the drive power via the power electronics system or the hydraulic control device.