Provided is a mechanism that causes a rod-shaped member to rotate while causing rod parts, which are part of the rod-shaped member, to carry out out-of-phase reciprocating motions. A drive mechanism (100) in accordance with an aspect of the present invention includes: a rotatable rod (10) that includes rod parts (11) which are separated by a boundary along a central axis 1, the rod parts (11) each being independently movable along the central axis (1); support members (A and B) having a slide groove (31) that is in the form of a ring and that surrounds the rotatable rod (10); and an outer cylinder (50) that is disposed between the rotatable rod (10) and the support members (A and B) and that has longitudinal grooves (51) each extending along the central axis (1).

Various surface cam planetary mechanisms are described that convert rotational motion to linear reciprocating motion. Also described are assemblies using such mechanisms such as pump drives. A surface cam component used in the mechanisms includes a cam race that exhibits an undulating surface.

An electric device has a driveshaft with at least one stator cylinder positioned between opposing, curvilinear shaped cams mounted on the driveshaft, where the center axis of the stator cylinder is parallel with but spaced apart from the driveshaft axis. A magnet assembly is disposed in each end of the stator cylinder, with one magnet assembly engaging one cam and the other magnet assembly engaging the other cam. Each magnet assembly includes a cam follower that can move along a curvilinear shaped cam. A magnet slide arm attached to the cam reciprocates magnets carried on the magnet slide arm through electromagnetic windings disposed around the stator cylinder. An electrical input delivered to the windings can reciprocate the arm, driving the cams to rotate the driveshaft. Alternatively, rotation of the driveshaft can be used to reciprocate the arm to induce electric current in the windings.

An indexed drive system (10) for mechanised tools, in particular an electric toothbrush, for selectively imparting various drive modes to a pair of concentrically-arranged drive shafts (12, 14) thereby imparting various brushing modes to the head (H) of the mechanised tool, in particular an electric toothbrush.

A hand crank cam lock for connecting medium to large sized display walls or boards including a hand crank disposed in a cam lock. The hand crank cam lock is configured to join two separate extrusions or frames together in a toolless manner. The hand crank cam lock locks these frames when the hand crank is turned clockwise, a plurality of hooks slide back along channels inside an outer body to grab the inner walls of a frame. This will in turn lock the hooks into place against the inner walls. The hand crank will only require half a turn to travel the required distance to lock the hooks into place and this half turn may be performed via a tool or by hand.

An actuator device having a motor driven cam, a follower coupled to an output member and driven by the cam, and a controller for controlling operation of the motor. The cam has a first cam surface, a second cam surface and a lift portion between the first and second cam surfaces. The controller is configured to identify a predetermined point on the lift portion as the follower is moved relative to the cam along the lift portion toward the second cam surface. The controller identifies the predetermined point based on a rate of change in the position of the output member along an output member axis as a function of the rotational position of the cam about a cam axis. The controller controls operation of the motor based on the predetermined point to position the follower on the second cam surface.

Various surface cam planetary mechanisms are described that convert rotational motion to linear reciprocating motion. Also described are assemblies using such mechanisms such as pump drives. A surface cam component used in the mechanisms includes a cam race that exhibits an undulating surface.

A transmission, including an outer shell (1), an inner shell (2), a drive disk (3), a plurality of T-shaped teeth (4), a gear (5), a tooth seat (6), an adjustable nut (7), balls (8), inner balls (9), outer balls (10), an inner protective frame (11), an outer protective frame (12), rollers (13), a first sealing ring (14), a second sealing ring (15) and a third sealing ring (16). Transmission clearance can be adjusted freely at any time, the meshing of the T-shaped tooth and the gear is a real surface meshing, and almost all the teeth participate in force transmission simultaneously. Therefore, the transmission has high precision, high mechanical properties, and long service life.

Position transmitter assemblies for use with actuators are disclosed. A position transmitter assembly for use with an actuator stem of an actuator includes a mounting bracket arranged for attachment to the actuator. The position transmitter assembly includes a position transmitter operatively coupled to the mounting bracket, the position transmitter including a position sensor or a feedback array. The position transmitter assembly includes an arm. The arm includes a first portion and a second portion. The other of the feedback array or the position sensor is mounted to the first portion. The position sensor is responsive to the feedback array to enable the position transmitter to determine a position of the actuator. The position transmitter assembly includes a cam assembly arranged between the actuator stem and the arm. The cam assembly is to cause the arm and the feedback array to linearly move when the actuator stem is rotating.

A mechanism for transforming rotating into reciprocating motion, or vice versa, comprising first and second annular components (1, 3) located coaxially along a longitudinal axis (ΔA). The first and second annular components are both able to rotate around and reciprocate along the longitudinal axis. A side (A) of the first annular component (1) is in continuous contact, in at least one point, with a neighboring side (Γα) of the second annular component (3) so that the second annular component (3) is able to rotate relative to and in continuous contact with at least one point with the adjacent side (A). The contacting sides are undulated surfaces (A, Γα) such that if the first and second annular components are forced into rotational motion, they remain in continuous contact so that every point of the undulated surfaces will trace, relative to the other, an undulated trajectory and also execute reciprocating motion.