A smart cord reel cable including at least one sensor for measuring cord or cord reel usage, a memory for receiving sensor input to create usage records, and a processor for analyzing the usage records to provide information for maintenance status indication and/or usage analytics.

A flat cable winding device includes: a base plate in which a central shaft for holding one end side of the flat cable is erected on the center of the upper surface; a rotation table disposed on an upper surface of the base plate and rotatably supported around the central shaft; a spiral spring for rotationally energizing the rotation table in the winding direction of the flat cable since the energizing member is interposed between the base plate and the rotation table; and a tubular wall body mounted on the base plate while the spiral spring and the rotation table are accommodated therein, wherein a rib is formed on an inner periphery wall surface of the tubular wall body for preventing the rotation table from popping out of the base plate.

A medical tubing housing device is provided including a housing having a front housing portion, a rear housing portion and a spool of medical tubing rotatably mounted within the housing. A retraction mechanism, including a drive plate and a spiral torsion spring, is mounted within the housing between the spool and the rear housing portion and the drive plate is in engagement with the spool. An inlet is provided on the rear housing portion for receipt of an external fluid source and is in fluid communication with the supply tubing through a collar of the housing and a connecting portion rotatably attached to the collar. The spiral torsion spring is movable between an unstressed condition and a stressed condition when the spool is rotated as the medical tubing is pulled out of the housing. The medical tubing housing device may also include a wall mount to mount the housing to a stable surface.

The universal coupling pin key is a fastening device. The universal coupling pin key forms a detent that attaches a first mechanical structure to a second mechanical structure. The universal coupling pin key further forms a simple tool that dislodges or prys apart a fastened mechanical structure formed from two components. The universal coupling pin key comprises a tool, a grip, a retractable tether, and a cable management system. The tool is the mechanical structure of the universal coupling pin key that fastens and detaches the mechanical structures. The grip is a handle used to manipulate the tool. The retractable tether attaches the tool and the grip to the cable management system. The cable management system deploys and retracts the tether. The cable management system further anchors the universal coupling pin key to an anchor point.

A fastening device includes a case unit, a spool, a driving unit, a knob and a connecting unit. The case unit includes an annular wall surrounding an inner space, and a base detachably and directly coupled to the annular wall. The spool is located within the inner space. The driving unit is located within the inner space and selectively prohibits the spool from rotating in a loosening direction. The knob is disposed on the annular wall. The connecting unit is connected to at least one of the knob, the spool and the driving unit without passing through the base and restricted by at least one of the annular wall, the spool and the driving unit such that the annular wall, the spool, the driving unit and the knob are combined integrally.

A fastening device includes a case unit, a spool, a driving unit, a knob and a connecting unit. The case unit includes an annular wall surrounding an inner space, and a base detachably and directly coupled to the annular wall. The spool is located within the inner space. The driving unit is located within the inner space and selectively prohibits the spool from rotating in a loosening direction. The knob is disposed on the annular wall. The connecting unit is connected to at least one of the knob, the spool and the driving unit without passing through the base and restricted by at least one of the annular wall, the spool and the driving unit such that the annular wall, the spool, the driving unit and the knob are combined integrally.

A fastening device including a case unit, a spool, a driving unit, a knob and a connecting unit is provided. The case unit has a radial direction and an axial direction and includes an annular wall. The annular wall surrounds an inner space. The spool is within the inner space and includes an axial space including a large-diameter segment and a small-diameter segment, and the small-diameter segment is connected to the large-diameter segment along the axial direction. The driving unit is disposed above the spool along the axial direction, and the driving unit selectively prohibits the spool from rotating in a loosening direction. The knob is disposed above the driving unit along the axial direction, and the knob is coupled to the driving unit. The connecting unit is connected to the knob, and the connecting unit is disposed within the axial space and limited within the large-diameter segment.

A fastening device including a case unit, a spool, a driving unit, a knob and a connecting unit is provided. The case unit has a radial direction and an axial direction and includes an annular wall. The annular wall surrounds an inner space. The spool is within the inner space and includes an axial space including a large-diameter segment and a small-diameter segment, and the small-diameter segment is connected to the large-diameter segment along the axial direction. The driving unit is disposed above the spool along the axial direction, and the driving unit selectively prohibits the spool from rotating in a loosening direction. The knob is disposed above the driving unit along the axial direction, and the knob is coupled to the driving unit. The connecting unit is connected to the knob, and the connecting unit is disposed within the axial space and limited within the large-diameter segment.

A cable-winding charger includes a housing, a main circuit board, a plug, a pivot base, a torsion spring, and a data cable. The main circuit board is in the housing and includes conductive rings. The conductive rings are coaxially arranged around the column of the housing. The plug is pivotally connected to the housing and electrically connected to the main circuit board. The pivot base is pivotally connected to the housing. Each conductive piece of the pivot base contacts the corresponding conductive ring. One end of the torsion spring is fixed to the column, and the other end of the torsion spring is fixed to the pivot base. One end of the cable body of the data cable is electrically connected to the conductive pieces, and the other end of the cable body is electrically connected to the connection port.

A cable-winding charger includes a housing, a main circuit board, a plug, a pivot base, a torsion spring, and a data cable. The main circuit board is in the housing and includes conductive rings. The conductive rings are coaxially arranged around the column of the housing. The plug is pivotally connected to the housing and electrically connected to the main circuit board. The pivot base is pivotally connected to the housing. Each conductive piece of the pivot base contacts the corresponding conductive ring. One end of the torsion spring is fixed to the column, and the other end of the torsion spring is fixed to the pivot base. One end of the cable body of the data cable is electrically connected to the conductive pieces, and the other end of the cable body is electrically connected to the connection port.