A rotator mechanism for rotating an elongate member that is coupled to a reciprocating member of a pumping system includes: a body having a through-hole for receiving a portion of the elongate member; a first freewheel clutch configured to cause the elongate member to rotate incrementally about the body axis in a predetermined direction when the reciprocating member reciprocates; and a second freewheel clutch spaced from the first clutch and configured to prevent the elongate member from rotating opposite the predetermined direction when the reciprocating member reciprocates. One or both of the clutches includes circumferentially-spaced clutch elements, that may include rollers or sprags or both.

A novel deformation motion mechanism with precise motion precise motion and structural robustness is achieved. A deformation motion mechanism includes: an elastic ring member shaped symmetrically with respect to a center line, wherein one end of the elastic ring member is fixed and the other end is movable along the center line; a drive unit which is placed within the elastic ring member and is arranged to rotate a feed screw engaged with both ends of the elastic ring member along an operating line orthogonal to the center line, to press or stretch the elastic ring member along the center line; and a plurality of flexible arms which connects the drive unit to the elastic member in at least a direction of the center line.

A harmonic drive, having: a housing; an output shaft within the housing; an input shaft within the housing, the input shaft is configured for being in a first position in which rotation of the input shaft rotates the output shaft, and a second position that is axially offset from the first position, in which rotation of the input shaft does not rotate the output shaft; a solenoid coil within the housing that, when energized, moves the input shaft to the second position; and a spring within the housing that, when the solenoid coil is not energized, moves the input shaft to the first position.

A novel deformation motion mechanism with precise motion precise motion and structural robustness is achieved. A deformation motion mechanism includes: an elastic ring member shaped symmetrically with respect to a center line, wherein one end of the elastic ring member is fixed and the other end is movable along the center line; a drive unit which is placed within the elastic ring member and is arranged to rotate a feed screw engaged with both ends of the elastic ring member along an operating line orthogonal to the center line, to press or stretch the elastic ring member along the center line; and a plurality of flexible arms which connects the drive unit to the elastic member in at least a direction of the center line.

A developer cartridge includes a first gear rotatable about a first axis extending in an axial direction, and a second gear rotatable in a rotation direction about a second axis extending in the axial direction. The second gear includes: an engagement portion engageable with gear teeth of the first gear; a first protrusion and a second protrusion protruding in the axial direction. The first and second protrusions extend to be spaced apart from each other in the rotation direction. The first protrusion has first end and a second end defining a first angle therebetween about the second axis. The second protrusion has a third end and a fourth end farther away from the first protrusion than the third end is in the rotation direction. The second end and the third end define a second angle therebetween about the second axis. The first angle is smaller than the second angle.

A linear powered input device that utilizes linear input from a user and converts the linear input to rotational energy to perform work. The linear input is generated by lever arms having a slotted attachment at a pivot point that allows a free end of the lever arms to move linearly rather than in an arcuate path. The lever arms are connected to a power transmission mechanism that wraps around one or more drive wheels having one-way bearings mounted on one or more output shafts. The output shafts can be connected to any type of auxiliary device to perform the desired work. Output wheels may be mounted on the output shafts and operatively connected by a transmission link that allows linear motion of any lever arm in any allowable direction to cause the output shaft to rotate in the same rotational direction so as to receive continuous input and/or generate continuous output.

A device for manually and/or electromotively adjusting or securing a first vehicle part and a second vehicle part relative to each other is provided. The device comprising an adjustment part which has a joint for pivotable arrangement on the first vehicle part, wherein the adjustment part is to be arranged on the first vehicle part in such a manner that, when the vehicle parts are adjusted relative to each other, the adjustment part moves relative to the second vehicle part, an output element which is to be arranged on the second vehicle part, is operatively connected to the adjustment part and is drivable in order to move the adjustment part relative to the second vehicle part, a shaft connected to the output element, and a flexible force transmission element which is fastened at a first end and at a second end to the adjustment part.

A direct-drive double wing scooter includes a frame, an actuation assembly, a drive assembly, and a transmission assembly. The actuation assembly includes left and right swing wings each pivoted close to a front end of the frame through a pivot. The drive assembly includes a first turning shaft and a second turning shaft penetrating two sides of the frame. A distance between the first turning shaft and the pivot is defined as a first distance. A distance between a rear end of the right swing wing is defined as a second distance, or a distance between a rear end of the left swing wing is defined as a second distance. The first distance is in the range of 0.10-0.65 times the length of the second distance. The direct-drive double wing scooter provides a simple and reliable drive way and has transportation, amusement and fitness effects.

A rotation transmission mechanism may include a drive wheel structured to rotate to one side, a driven wheel turned by the drive wheel to one side, and an urging member urging the driven wheel to turn to the other side. The drive wheel may include a drive teeth forming part where drive teeth structured to turn the driven wheel to the one side are provided at positions different from each other in an axial line direction, and a cam face forming part on which the driven wheel is slid. The driven wheel is provided with a driven teeth forming part where driven teeth provided at positions different from each other in an axial line direction are disposed over an angular range so that, when the drive wheel is turned to the one side, the drive teeth are sequentially abutted with the driven teeth.

A kinematic component comprising a first movably adjustable component, a second movably adjustable component and a device which is provided and designed to adjust the movably adjustable components independently of each other, and wherein the device is provided and designed to recognise a first reference position of the first movably adjustable component and a second reference position of the second movably adjustable component, wherein the device is further provided to reference the first movably adjustable component upon recognition of the first reference position and to reference the second movably adjustable component upon recognition of the second reference position.