초록 ▼

An electrical cord retraction device including a spring biased reel contained within a housing, a retractable cord stored on the reel, and an electrical connector capable of accommodating relative rotation between the reel and housing. A preferred embodiment of the device includes an electrical conn

An electrical cord retraction device including a spring biased reel contained within a housing, a retractable cord stored on the reel, and an electrical connector capable of accommodating relative rotation between the reel and housing. A preferred embodiment of the device includes an electrical connector comprising a set of printed circuit boards with one printed circuit board having concentric rings and the other printed circuit board having electrical contacts. Another embodiment of the device includes an electrical connector defined by a spiral electrical connector, in particular a spiral strip electrical connector. A preferred embodiment is a retractable telephone cord device mounted to or part of a telephone base receiver unit, and/or a handset or headset.

대표청구항 ▼

A retractable electrical cord device for electrically connecting one electrical device to another electrical device, said device comprising: a housing having an access opening; a reel rotatably disposed within said housing; a retractable electrical cord at least partially wound around said reel when

A retractable electrical cord device for electrically connecting one electrical device to another electrical device, said device comprising: a housing having an access opening; a reel rotatably disposed within said housing; a retractable electrical cord at least partially wound around said reel when stored, said retractable electrical cord having one end anchored to said reel and an opposite end extending through said access opening in said housing; a first electrical connector extending through said housing for electrically connecting the retractable electrical cord device to the one electrical device; a second electrical connector provided at said opposite end of said electrical cord for electrically connecting the retractable electrical cord device to the another electrical device; a spring connected to said housing and said reel to provide means for retracting said electrical cord by winding said reel when said electrical cord is at least partially extracted from said housing; and a third electrical connector electrically connecting together said retractable electrical cord and said first electrical connector to accommodate relative rotational movement between said housing and said reel during winding and unwinding of said retractable electrical cord on and off said reel, said third electrical connector comprising a first printed circuit board having a plurality of concentric conductor rings, and a second printed circuit board rotationally aligned and having a plurality of electrical contacts for electrically connecting corresponding said conductor rings of said first printed circuit board, said retractable electrical cord electrically connected to one of the said first and second printed circuit boards, and said first electrical connector electrically connected to the other of said first and second printed circuit boards.