Patent ID: 7302878
Filing Date: 2007-12-04
Classification: B27G,Y10S,Y10T

Abstract:
1. A protective cover device adapted to be mounted on a worktable of a sawing machine on which a workpiece is fed along a working path in a longitudinal direction, comprising: a supporting member having a lower end portion which is adapted to be secured on the worktable, and an upper end portion which is opposite to said lower end portion in an upright direction transverse to the longitudinal direction and which has a rear pivot hole extending therethrough in a transverse direction relative to both the upright direction and the longitudinal direction; a cantilever having front and rear pivot ends opposite to each other in the longitudinal direction; a rear journal pin extending into said rear pivot hole to pivotally secure said rear pivot end to said upper end portion such that said rear pivot end is turnable about a rear axis in the transverse direction between a lifted position where said front pivot end is remote from said upper end portion, and a working position where said front pivot end is closer to said upper end portion; a cover shield which is configured to be adapted to cover a cutting blade of the sawing machine, and which includes front and rear ends opposite to each other in the longitudinal direction, and a middle portion interposed therebetween, said front end extending downwards to terminate at a nose edge, said middle portion having a front pivot hole which extends in the transverse direction; and a front journal pin extending into said front pivot hole and said front pivot end to pivotally secure said middle portion to said front pivot end of said cantilever such that said nose edge is brought to be in sliding contact with an upper surface of the workpiece fed along the working path by virtue of gravity when said rear pivot end is in the working position; said rear journal pin being movable relative to said rear pivot end in the transverse direction between a latched position, where said rear journal pin pivotally secures said rear pivot end to said upper end portion by extending into said rear pivot hole, and a released position, where said rear journal pin is clear of said rear pivot hole by being withdrawn therefrom in the transverse direction; said rear pivot end of said cantilever including left and right lugs which are spaced apart from each other in the transverse direction so as to define an accommodation space for receiving said upper end portion therein, and which respectively have left and right through holes, said rear journal pin extending through said left through hole and having an actuated end which extends into said accommodation space so as to extend through said rear pivot hole in said upper end portion to be placed in the latched position, said protective cover device further comprising: