The present invention concerns an angular transmission device comprising: An input shaft and an output shaft, An assembly arranged for coupling the input shaft with the output shaft so that the output shaft can be rotationally driven by the input shaft, the assembly comprising a rotary actuator and a linear mobile, the rotary actuator being coupled with the input shaft and moves the mobile in a translation motion relative to the actuator, the mobile being coupled with the output shaft so that the rotation of the input shaft drives the rotation of the output shaft; the assembly further comprises a flexible blade fixed to said mobile and looped around the output shaft, so that when the actuator moves the mobile, the flexible blade drives the rotation of the output shaft. The invention also comprises a method using said device.

A drive device for a shade arrangement for vehicles, in particular for a rear window or side window roller blind including a slider that is supported along a movement path and that supports a rod which rod facilitates moving the shade arrangement into a pulled out position or a pulled in position; a rope at which the slider is attached and which is run over an upper deflection arrangement proximal to the pulled out position and a lower deflection arrangement remote from the pulled out position; a drive roller at which the rope is at least attached by friction locking; and a drive motor which rotates the drive roller and moves the slider by the rope between the pulled out position and the pulled in position, wherein the lower deflection arrangement and the upper deflection arrangement are configured without a drive, and wherein the drive motor with the associated drive roller is arranged between the upper deflection arrangement and the lower deflection arrangement.

A cable actuator (100) comprising: a frame (10); a screw (2) rotatably mounted on the frame (10) and extending along a first axis (Ox); a nut (4) cooperating with the screw (2); means (30) for estimating the angular movement of the nut (4) about the first axis (Lx) relative to the frame (10); and a distance sensor (30) secured to the frame (10) and having a winder (33) for winding a thread (32), one end (32.1) of the thread (32) connected to the nut (4) at a connection point (4.1);

wherein the distance sensor (30) is arranged in such a manner that the thread (32) changes curvature at a first point (34) situated in a first plane (P.sub.1) orthogonal to the first axis (Ox).

Disclosed herein are methods, systems, and components for the design of a flat belt based block and tackle design that is theoretically free of fleet angles. A mapping technique forms a set of planar positions for the centerlines of the free spans that provides a plurality of sheave geometries, which reside on a common axis and spans that are free of fleet angles at the sheave engagement interfaces. This permits the use of high-performing flat belts in high-reduction (e.g., 6:1 or greater) block and tackle topologies, with the principal benefits of an extended service life, high power transmission efficiency, more effective traction power transfer, and a compact machine design.

The present invention relates to a flat belt (10) that is an open end belt to be fixed to a coupler (31, 41), in which the flat belt (10) contains, formed on both end portions (11, 12) of at least one surface of the flat belt (10), a plurality of projected portions (13) engageable with a plurality of recessed portions (33, 43) formed on the coupler (31, 41).

Various embodiments include a fastening unit for fastening a tendon to a system. The fastening unit comprises: a head with a first opening; a shaft with a second opening and an external thread; and a channel extending from the first opening along the head to the second opening at least partly along the shaft. The external thread and the channel in each case accommodate the tendon.

The present invention concerns an angular transmission device comprising: An input shaft and an output shaft, An assembly arranged for coupling the input shaft with the output shaft so that the output shaft can be rotationally driven by the input shaft, the assembly comprising a rotary actuator and a linear mobile, the rotary actuator being coupled with the input shaft and moves the mobile in a translation motion relative to the actuator, the mobile being coupled with the output shaft so that the rotation of the input shaft drives the rotation of the output shaft; the assembly further comprises a flexible blade fixed to said mobile and looped around the output shaft, so that when the actuator moves the mobile, the flexible blade drives the rotation of the output shaft. The invention also comprises a method using said device.

A belt driven linear actuator includes: a base, a linearly movable unit, a belt driven unit, a first cover, a second cover, a drive source, and a slide block. With the first and second covers removably disposed on the base, the first and second covers can be located at different positions to define different gaps in different directions, so as to allow the slide block to be assembled in different directions, and reduce the restriction on the assembling direction of the drive source. Besides, the width of the base is equal to the height of the base, and the height of the cover portion is equal to the height and the width of the base, which allows the base to be assembled in the same position while in different directions.

An example variable transmission system is provided. As an example, a variable transmission system may include a frame, an output hub coupled to the frame, a first linear actuator coupled to the frame, and a second linear actuator coupled to the frame. The variable transmission system may also include a tension-bearing element positioned around the output hub. A first end of the tension-bearing element may be coupled to the first linear actuator, and a second end of the tension-bearing element may be coupled to the second linear actuator. The tension-bearing element may include a variable stiffness profile such that a transmission ratio of the output hub may be adjusted based on a position of the second linear actuator relative to the output hub.

An exoskeleton includes first and second supports coupled to an exoskeleton wearer, a joint connecting the first support to the second support and an actuator. The actuator includes a ball screw, a ball nut assembly coupled to the ball screw and first and second tensile members. The ball nut assembly has first and second cord reactors. The first tensile member is routed through the first cord reactor, and the second tensile member is routed through the second cord reactor. Movement of the ball nut assembly along the ball screw in a first direction causes the second support to move relative to the first support in a first rotational direction about the joint. Movement of the ball nut assembly along the ball screw in a second direction causes the second support to move relative to the first support in a second rotational direction about the joint.