Patent ID: 8430594

Claim:
An assembly structure, comprising: a base plate comprising first and second tabs protruding from the base plate, the first tab comprising a first tab hole, and the second tab comprising a second tab hole substantially aligned with the first tab hole; a housing protruding from the base plate and comprising a sidewall portion enclosing an inner space, the housing further comprising a feed aperture formed in a bottom portion of the inner space, and first and second locking apertures formed on opposing sections of the sidewall portion; an assembly adapted to fit into the inner space of the housing, the assembly comprising a locking notch on each of two opposing sides thereof, the locking notches each configured to align with a respective one of the first and second locking apertures of the housing; a locking device configured to insert through the aligned locking apertures and locking notches; and a feeding device connected to the assembly and configured to move the assembly with respect to the housing, wherein the feeding device comprises: a flexible wire comprising a first end and an opposing second end wherein the first end passes through the aligned first and second tab holes, and the second end passes through the feed aperture in the bottom portion of the housing and connects to the assembly; a fastener rigidly connected to the flexible wire between the first and second tabs; and a spring substantially surrounding the flexible wire, the spring comprising a first end and an opposing second end, wherein the first end is connected to the first tab and the second end is connected to the fastener; wherein the feeding device is adapted to move the assembly between a locked position and an unlocked position, whereby: in the locked position, the assembly is seated within the inner space of the housing such that each of the locking notches of the assembly are aligned with a respective one of the first and second locking apertures in the housing; the locking device is inserted through the aligned locking apertures and locking notches; and the fastener is moved toward the first tab of the base plate, thereby compressing the spring; and in the unlocked position, the locking device is removed from the locking notches and locking apertures; the spring is uncompressed such that the fastener abuts the second tab of the base plate; and the first end of the flexible wire extends outwardly from the feed aperture in the housing, such that the assembly is movable and rotatable with respect to the housing.