A retractable cable assembly in use with an electrical charger, power adapter, or other power supply. A cable wound on a spool disposed within a housing may be extracted by manually pulling on the cable or pressing of a release switch until the desired length of the cable is drawn. As the cable is drawn an engaged locking mechanism is used to keep the cable in place during and after extraction of the cable until which time retraction of the cable is desired. A retraction actuator disengages the locking mechanism, thereby freeing the cable and immediately retracting the cable within the housing.

Lacing engine systems, apparatus, and methods of operation are discussed. In an example, a lacing engine apparatus can include a housing, a drivetrain, and a lace take-up mechanism for retracting a length of lace cable upon activation. The drivetrain can include various reduction gears to reduce rotational speed out of the motor and power the lace take-up mechanism. The lace take-up mechanism can include structures such as a double-yoke, a radial pulley including an outer rotating disc and an inner stationary disc, a variable take-up spool, or a zip-strip mechanism.

The invention relates to a system (1) for transferring a magnetic link (2) between a first element and a second element rotatable relative to the first element, a first end of said link being adapted to be attached to the first element and a second end of the link being adapted to be attached to the second element, characterised in that it comprises: a first part (11, 13) adapted to be rigidly connected to the first element; a second part (21, 23) rotatable relative to the first part and adapted to be rigidly connected to the second element so as to be rotationally driven at the rotational speed of said second element; a third part (30, 31) rotatable relative to the first and second parts, a member for coupling (40, 45) the second and third parts, adapted to rotationally drive the third part at a speed equal to half the rotational speed of the second element, two sets of two coaxial ferromagnetic surfaces for winding the magnetic link (2), a first set comprising a first surface integral with the first part and a second surface integral with the third part, a second set comprising a third surface integral with the second part and a fourth surface integral with the third part.

The invention relates to a system (1) for transferring a magnetic link (2) between a first element and a second element rotatable relative to the first element, a first end of said link being adapted to be attached to the first element and a second end of the link being adapted to be attached to the second element, characterised in that it comprises: a first part (11, 13) adapted to be rigidly connected to the first element; a second part (21, 23) rotatable relative to the first part and adapted to be rigidly connected to the second element so as to be rotationally driven at the rotational speed of said second element; a third part (30, 31) rotatable relative to the first and second parts, a member for coupling (40, 45) the second and third parts, adapted to rotationally drive the third part at a speed equal to half the rotational speed of the second element, two sets of two coaxial ferromagnetic surfaces for winding the magnetic link (2), a first set comprising a first surface integral with the first part and a second surface integral with the third part, a second set comprising a third surface integral with the second part and a fourth surface integral with the third part.

A device tethering system is provided for securing a device to a source location as may be assisted by a tether. The device tethering system may include a retraction component, tether, pouch, belt, device mounting component, device aspect of the device mounting component, and/or tether aspect of the device mounting component. A method for securing a device to a source location using the device tethering system is also provided.

According to an example aspect of the present invention, there is provided a spring loaded retractable device comprising a frame, a movable part hinged to a first pin and comprising an opening radially aligned to the first pin, wherein a strap is movable through the opening, and wherein the movable part is configured to move from a first position into a second position by rotating around an axis of rotation due to friction between the movable part and the moving strap.

The present invention discloses a rotary self-lock catch. As a rope penetrates into the take-up cavity of the take-up reel and a tail end of the rope is limited at a boundary between a through hole and a hollowed cavity, when the rotary knob is rotated, the take-up reel can be driven to rotate together, so that the rope is wound in the take-up cavity by the take-up reel, and the rotary knob is allowed to rotate along one direction, so that an effect of tightening the rope can be realized.

A system includes a frame and a first pair of rollers coupled to a first side of the frame. The first pair of rollers is configured to support a first end of a pipe reel. The system also includes a first cradle disposed longitudinally between the first pair of rollers and a second pair of rollers coupled to a second side of the frame. The second pair of rollers is configured to support a second end of a pipe reel. The system also includes a second cradle disposed longitudinally between the second pair of rollers, a pipe guide coupled to a third side of the frame between the first and second sides, a pipe brake coupled to the frame, and a pipe re-spooler coupled to the frame.

A chalk reel includes a housing defining a chalk chamber and an opening from the chalk chamber; a spool positioned within the chalk chamber; and a line wound on the spool and extending through the opening, the line having a width of dimension X. The spool comprises an axial hub and a sidewall. The sidewall comprises a plurality of apertures extending through the sidewall from a first face distal from the axial hub to a second face proximal to the axial hub. Each of the plurality of apertures having a maximum width of dimension Y. The dimension Y is less than or approximately equal to twice the dimension X.

Implementations of spool devices may include a frame including an anchor, the anchor configured to directly couple to a belt of a user, an axle coupled through the frame, and a first spool coupled over a first portion of the axle. The first portion of the axle may extend entirely through the first spool. The spool device may also include a second spool coupled over a second portion of the axle. The second portion of the axle may extend entirely through the second spool. The spool device may also include a first spool handle directly coupled to an outer wall of the first spool, a second spool handle directly coupled to an outer wall of the second spool, a first hose roller directly coupled to the frame, and a second hose roller directly coupled to the frame.