US Patent 7265986 Computer enclosure with top cover conveniently assembled on chassis thereof

A computer enclosure includes a chassis (60), an operating member (30), a resilient member (80), and a top cover (10). The chassis has a catch flange (52) which defines a plurality of locking openings (524) therein. The operating member is slidably attached to the chassis. The resilient member is connected between the chassis and the operating member, and deforms when the operating member slides relative to the chassis. The top cover has a plurality of hooks (12) formed thereon. When the resilient member returns to a relaxed condition, the hooks insert into the locking openings and are pushed by the operating member, and the catch flange is sandwiched between free ends of the hooks and the top cover.