Patent ID: 6374895
Filing Date: 2002-04-23
Classification: B23Q,E06B

Abstract:
An improved structure of a single-piece fitting type retractable protective cover, the cover comprising:a retractable body comprising a series of W-shaped sections connected at adjacent ends thereof, each of the W-shaped sections comprising an upper portion; fitting plates each nailed to a respective one of the upper portion of the W-shaped sections, each of the fitting plates including a front projecting shaft extending out of the W-shaped sections; and fitting vanes each comprising a head end recess, each of the head end recesses engages a respective one of the front projecting shafts along the longitudinal length of the respective one of the front projecting shaft, each of the fitting vanes further comprising a tail end, the fitting vanes are rotatable toward or away from the W-shaped sections along the longitudinal lengths of the front projecting shafts.