Patent ID: 7735942

Claim:
A foldable host unit case of a computer with sliding rail grooves, which is reduced volume thereof effectively while packaging, comprising: a first frame providing two sliding rail grooves at the rear end thereof; a second frame being disposed opposite to the first frame and providing another two sliding rail grooves at the front end thereof; a front wall providing a first lateral end to pivotally connect with the first frame with pivotal shafts and a second lateral end being movably joined to the sliding rail grooves of the second frame with sliding blocks; and a rear wall providing a first lateral end being movably joined to the sliding rail grooves of the first frame with further sliding blocks and a second lateral end pivotally connecting with the second frame with further pivotal shafts; wherein the first frame has a frame edge bending inward at the upper and lower sides thereof respectively; the front end of the first frame has an upper vertical plate, a horizontal connecting plate and a lower vertical plate; the lower end of the upper vertical plate and the upper end of the lower vertical plate are connected to the inner end and the outer end of the horizontal connecting plate respectively; the sliding rail grooves are disposed at the frame edges respectively; wherein the second frame has a frame edge bending inward at the upper and lower sides thereof; the front end of the second frame has an upper vertical plate, a horizontal connecting plate and a lower vertical plate; the lower end of the upper vertical plate and the upper end of the lower vertical plate are connected to the outer end and the inner end of the horizontal connecting plate respectively; the sliding rail groove of the second frame are disposed at the lower side of the frame edge of the second frame and at the horizontal connecting plate respectively; whereby the first frame, the second frame, the front wall and the rear wall are capable of being unfolded to form the host unit case completely and being folded to reduce the volume of host unit case as a packaged size.