A winding drum for a line and/or for a line guide device which is adapted to receive and guide at least one line, wherein the drum is rotatable about the longitudinal axis thereof, wherein a first end region of the line and/or line guide device is or can be fixed to the drum and the line and/or line guide device can be wound on to and unwound from the drum by rotation of the winding drum in a winding-on and an unwinding direction about the drum longitudinal axis, wherein there is provided a drive device engaging the winding drum in order upon rotation of the drum in the unwinding direction thereof to exert a return force on the drum for rotation thereof in the winding-on direction. The drive device is in the form of a torsion spring which upon rotation of the drum in the unwinding direction is subjected to torsional stress and by virtue of the torsional stress exerts a torque on the drum for rotation thereof in the winding-on direction and the torsional stress exerts the return force on the drum.

A high-speed stroke-type moving device for an elongate flexible body having at least one supply line. The device has a guideway for guided displacement of the body, having a spiral portion, in which at least part of the body is compactly accommodatable in a plurality of spaced tracks which are not in mutual contact and extend substantially spirally inwards. The invention provides that the body has a line guideway for the at least one supply line. According to the invention, the line guideway here has a first sub-portion which is guided in the spiral portion and an unguided second sub-portion having a first end which is connected at the end to the first sub-portion and a second end which is connected at the end to a rotary feedthrough for the at least one supply line. A corresponding device having an energy chain is furthermore disclosed.

Disclosed is a hooking device of a VR data cable, configured to hang the VR data cable, including a buffer, a hang assembly, and an adjustment assembly. The buffer is hung on a hook of a ceiling. The hang assembly is configured to hang the VR data cable. One end of the adjustment assembly is connected to the buffer, and the other end of the adjustment assembly is connected to the hang assembly, and the adjustment assembly adjusts a hang height of the VR data cable through elastic expansion and contraction.

A winding mechanism includes a housing, an inner cylinder and a wire. The housing is formed with an accommodating space therein. An inner surface of the housing is formed with an internal thread structure. The inner cylinder is disposed in the accommodating space and defines a central axis. An outer surface of the inner cylinder is formed with an external thread structure. The external thread structure is cooperated with the internal thread structure. The inner cylinder is capable of displacing along the central axis by rotating relative to the housing. The external thread structure includes at least two contact portions and at least two non-contact portions, and gaps are formed between the non-contact portions of the external thread structure and the internal thread structure. An end of the wire is connected to the inner cylinder and is wound along the external thread structure of the inner cylinder.

A reel based closure device includes a housing, a tension member, a spool that is rotatably positioned within the housing, and a tightening component that is positioned axially above the spool and that is operably coupled therewith so that an operation of the tightening component causes the spool to rotate within the housing to wind the tension member about the spool. The reel based closure device also includes a coupling component that is separate from the tension member and that frictionally engages with a distal end of the tension member so that the coupling component is removably fixed to the tension member. The spool component includes a coupling feature within which the coupling component is positioned to attach the tension member to the spool.

A device for winding up and unwinding an elongated flexible element having a free end and a spatially fixed end. The elongated flexible element is divided over its length at least into a use portion and a compensation portion, wherein the use portion has the free end and the compensation portion has the spatially fixed end. The device includes a rotatable drum configured on its circumference to wind up and unwind at least the use portion in a first winding plane, wherein the end of the compensation portion is spatially fixed relative to the drum. The elongated flexible element in the transition from the use portion to the compensation portion is fixed at a fastening point to the drum, and when the drum is rotated the compensation portion is coiled up and uncoiled in the form of at least one looped portion in a second winding plane.

A charging system for a handheld electronic device includes a housing configured to removably attach to the handheld electronic device. The housing includes at least one power source, at least one electronic logic board, and an accessory station configured to store and charge at least one accessory item of the handheld electronic device. The transmitter is mounted on the electronic logic board. The transmitter is configured to transmit power between at least two of the following: the accessory item, the accessory station, the power source, the housing, and the handheld electronic device. A software installed on the electronic logic board is configured to control a power transfer between the accessory item, the accessory station, the power source, the housing, and the handheld electronic device. The housing includes a magnetic material configured to removably attach to a corresponding magnetic material of the handheld electronic device.

A fiber optic retractable cord reel assembly is disclosed. The fiber optic cord reel assembly includes a continuous fiber optic cord with a retractable end enclosed in a shroud and a stationary end exposed from the shroud. The retractable cord reel may have a rotatable ferrule configured to adapt to an expandable coil having various trajectories within the cord reel.

A guide device for at least one line, such as an electric line of a C-arm, has a rotatable first cylinder with a first cylindrical surface and a static second cylinder, adjoining the first cylinder in the axial direction and having a second cylindrical surface. A first guide element for guiding the line on the first and/or the second cylindrical surface, is disposed coaxially with respect to the first and the second cylinder and it is movable relative to the first and the second cylinder. The line can be wound up on the first and/or the second cylindrical surface or can be unwound therefrom depending on the movement of the first cylinder.

A cord reel assembly including a single, continuous cord having stationary and retractable segments, with the stationary segment including multiple connectors and sheath covering such connectors where the connectors twist and untwist relative to the sheath in response to the retract and extension of the retractable segment.