Patent ID: 6463663
Filing Date: 2002-10-15
Classification: B23D

Abstract:
A folding saw comprising a blade and a handle, wherein either an edge of the blade, the handle or both are curved in a concave shape, and a base end of the blade is pivotally attached to a top end of the handle having a semi-U-shaped cross section so that the blade is rotatable in such a way that at least a portion of the edge of the blade is housed in a U-shaped housing groove of the handle, wherein:a protective cover is housed inside the housing groove of the handle for housing the blade, said protective cover being retractable with respect to the housing groove, and when the blade is folded, the protective cover projects out of the hong groove of the handle, thereby covering a portion of the edge of the blade that is exposed from the housing groove; and wherein the protective cover housed inside the housing of the handle is retractable into the housing groove by rotating around a pivot located adjacent a bottom end of the handle, and is urged by a first spring positioned between the pivot and the bottom end of the handle so that the protective cover is biased in the housing groove, and when a top end of the folded blade pushes against a portion of the protective cover between the pivot and the bottom end of the handle, the protective cover pivotally projects out of the housing groove, against a resiliency of the first spring, so that the protective cover is pushed out of the housing groove, thereby causing the protective cover to cover the edge of the blade when the blade is folded.