Patent ID: 7125282
Filing Date: 2006-10-24
Classification: H01R

Abstract:
1. An adapter module, comprising: a housing; a first power cable, having a first plug to connect with a power source; a second power cable, having a second plug to connect with a portable computer; a first cylinder, installed in said housing, said first cylinder including a first torsion spring; a second and a third cylinder equipped with teeth, said second cylinder and said third cylinder being installed in said housing with a same rotation shaft, said second cylinder and said third cylinder respectively having a second torsion spring and a third torsion spring, wherein said first cylinder and said second cylinder are aligned to roll up said first power cable, said first power cable is wound around said first cylinder and said second cylinder, and said third cylinder is used to roll said second power cable, said second power cable being wound around said third cylinder; a stop, driven by a spring to block said teeth of said second cylinder and said third cylinder, respectively, whereby said second cylinder and said third cylinder are prevented from rolling; and a button, pressed by a user against said spring's force to release said stop, wherein: when the adapter module is in use, said first and second plugs are respectively pulled to extract said first and second power cables from said housing; and when the adapter module is not in use, said button is pressed to enable said second cylinder and said third cylinder to retract said first and second power cables into said housing.