Patent ID: 7201342

Claim:
A signal cable rewinder comprising: a) a housing including two housing members; b) two rewinding discs, each of the two rewinding discs has a plurality of fixing rings, one of the two rewinding discs is located on an interior of each of the two housing members; c) two spiral springs, each of the two springs has a first spring end and a second spring end, the first spring end of one of the two spiral springs is connected to each of the two housing members, the second spring end of one of the two spiral springs is connected to each of the two rewinding discs; and d) two signal cables, each of the two signal cables has a middle portion and is folded at the middle portion forming a double-folded member, the middle portion of one of the two signal cables is wound around a plurality of grooves of the plurality of fixing rings of each of the two rewinding discs, one double-folded member is wound around each of the two rewinding discs, wherein opposing ends of one of the two signal cables are simultaneously withdrawn from and retracted into each of the two housing members, the two signal cables are independently withdrawn from and retracted into the housing.