Abstract: The present invention relates to a wearable power supply device capable of capturing human motion comprising a housing, a rotating shaft, a connection rod, a first swinging block, a second swinging block, a first coil, a second coil, a T-shaped transmission element and a pull rod. A first coil and a second coil is fixedly disposed inside the first cavity and the second cavity respectively. The rotating shaft is disposed off-center. The connection rod is fixedly connected to the first swinging block and the second swinging block. An end of the T-shaped transmission element is hinged to the separator plate, another end of the T-shaped transmission element is abut against the end of the rotating shaft within the second cavity. An end of the pull rod is hinged to the T-shaped transmission element, another end of the pull rod penetrates out from the housing. The structure of the device is sensible, simple, convenient and adapted for travelling, solving the problem of charging of portable devices effectively.

Abstract: A disc holder having a rigid central core for projecting through the central aperture of an optical disc in order to hold the optical disc in place. The disc holder includes, in addition to the rigid central core, a base, several support arms that extend radially inwardly from the base to support the central core in spaced relation from the base, and securing means for releasably securing the rigid central core within the central aperture of the optical disc. The securing means includes locking fingers mounted on the central core. The locking fingers are biased outwardly against the edge of the central aperture of the disc when the disc is held by the disc holder. The locking fingers are moveable radially inward to fit within the central aperture of the disc, thereby allowing the disc to move over the locking fingers so that the disc can be put on or taken off the disc holder.

Abstract: A disc holder for projecting through a central aperture of an optical disc in order to hold the optical disk in place. The disc holder includes a base, a rigid central core, several support arms that extend inwardly from the base to support the central core in spaced relation from the base, and securing means for releasably securing the rigid central core within the central aperture of the optical disc. The securing means includes locking fingers mounted on the central core. The locking fingers are biased outwardly against the edge of the central aperture of the disc when the disc is held by the disc holder. The force of the locking fingers against the edge of the central aperture are movable radially inward to it with the central aperture of the disc helps to hold the disc in place. The locking fingers of the disc, thereby allowing the disc to move over the locking fingers so that the disc can be put on or taken off the disc holder.