Key chain with roller chain in a reel. (Machine-translation by Google Translate, not legally binding)

摘要

Key chain with roller chain on a reel for omnidirectional operation from a fixed position, characterized by comprising in combination: a hollow box with central port, including complementary box elements, which cooperatively procure parallel side walls, relatively spaced, and having paired portions in contact, to form a peripheral wall, connecting said side walls, said paired portions having complementary cavities at their edges in contact, to provide an opening, adapted to receive and retain an eyelet to thereby avoid a relative rotation of said elements of box; a mandrel supported by one of said side walls provided with ports, and having end portions, which rest against internal surfaces of both said side walls, to maintain them in predetermined spaced relation; said mandrel supporting a rotating spool, comprising a pair of side plates with openings to provide supports on said mandrel, said lateral plates being provided with circular protrusions, opposite protrusions, adapted for supporting contact with the internal surfaces of the respective side walls to provide spaces between peripheral portions of said plates and said side walls, the peripheries of said protrusions being provided with circumferentially spaced openings; bushing extending between said plates axially with respect to said mandrel and having its ends seated in said prominences and provided with appendages, which pass through the openings in said protrusions and hooked against the peripheral portions of said plates, the protrusions being displaced from the peripheral portions of said plates by a distance greater than the thickness of the appendices, so that the ends of the appendices are inside said spaces, outside of contact with said side walls a coil spring wound on said mandrel and having its ends connected respectively said mandrel and said bushing; and a flexible chain of a width to fit tightly between said plates and connected to said bushing for winding and unwinding therefrom and confined thereon between said plates, said flexible member passing said eye toward the outside of said case for withdrawal in any direction. (Machine-translation by Google Translate, not legally binding)