An exemplary shift lever includes a mounting assembly, a flexible member coupled to the mounting assembly, and an interface coupled to the flexible member. The flexible member is resilient so as to provide a selected biasing force at a predetermined deformation angle, and flexible enough to elastically deform across a selected angular range. The mounting assembly is configured for connection with the input shaft of a transmission, and the interface is configured for connection with an output of a drive selector.

A hand-held power tool which includes a shiftable transmission that is shiftable at least between a first gear and a second gear via a shifting member, in which the shifting member is coupled to a spring element, which for the gear shifting is indirectly or directly actuatable at least via a first and a second shifting element. A coupling element which is coupleable to the spring element is associated with the first shifting element, and the coupling element is configured for allowing gear shifting by actuating the first shifting element only for the case that the second shifting element is in a predefined gear shift position.

A stepless speed regulating control mechanism for a mower includes a push handle, a self-propelled lever, a speed regulating cable and a regulating mechanism; the mower has a base and a self-propelled device; the regulating mechanism includes a regulating sleeve and a speed regulating sleeve; the self-propelled lever pulls the regulating sleeve and causes the speed regulating sleeve to move simultaneously with the regulating sleeve, so as to pull the speed regulating cable, and the speed regulating sleeve can move relative to the regulating sleeve, so as to pull the speed regulating cable.

A gear shift assembly for selecting a gear in a vehicle transmission that includes a multipiece clamping assembly for connecting the driver's gear selector lever. The clamping assembly has separate saddle and clamp components that are fastened together to encircle the selector lever and position the selector lever in the gear shift assembly.

A shifter for gear selection in a gearshift transmission for a vehicle is or can be connected to an actuating unit for signal transmission to initiate a gear selection by means of a gear selection signal transmitted to the shifter. The shifter has at least one mechanical interface for mechanically coupling the shifter to the gearshift transmission by means of at least one connecting element. The shifter is configured to exert a translational movement on the at least one mechanical interface for executing the gear selection by means of the at least one connecting element as a function of the gear selection signal.

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 shifter apparatus for manually changing gear ratio in a planetary gear transmission, said planetary gear transmission being of the type which comprises a plurality of actuators, wherein the sequential actuation of said actuators progressively causes a change of gear ratio in said planetary gear transmission. The shifter apparatus advantageously provides a single lever which can be quickly and easily shifted by a user.

A stepless speed regulating control mechanism for a mower, which comprises a push handle, a self-propelled lever, a speed regulating cable and a regulating mechanism; the mower has a base and a self-propelled device; the regulating mechanism comprises a regulating sleeve and a speed regulating sleeve; the self-propelled lever pulls the regulating sleeve and causes the speed regulating sleeve to move simultaneously with the regulating sleeve, so as to pull the speed regulating cable, and the speed regulating sleeve can move relative to the regulating sleeve, so as to pull the speed regulating cable. The stepless speed regulating control mechanism of a mower is not only convenient for speed regulation and for stepless speed regulation, but also reasonable in design and convenient for speed regulation operation without causing confusion and misoperation. Besides, the stepless speed regulating control mechanism is low in cost, and easy to manufacture and operate.

There is provided a transmission device comprising a rigid casing configured to be mounted perpendicularly on a pair of parallel rotatable driving and driven shafts. Annular driving and driven gears are provided in the casing. The annular driving gear is adapted for rotating simultaneously with the driving shaft, and is also adapted for forwarding rotational motion of the inner section to a transmission device. The annular driven gear is adapted for engaging and rotating simultaneously with the driving shaft and sliding over the same, and for forwarding to the inner section rotational motion received from the transmission device. The transmission device is rotatively connected to the annular driving and driven gears for transmitting rotational movement of the driving shaft to the driven shaft. There is also provided a portable boring-welding apparatus using this transmission device and a method for rotating a driven shaft using a parallel driving shaft.

An exemplary shift lever includes a mounting assembly, a flexible member coupled to the mounting assembly, and an interface coupled to the flexible member. The flexible member is resilient so as to provide a selected biasing force at a predetermined deformation angle, and flexible enough to elastically deform across a selected angular range. The mounting assembly is configured for connection with me input shaft of a transmission, and the interface is configured for connection with an output of a drive selector.