Patent ID: 7992467
Filing Date: 2011-08-09
Classification: E04D

Abstract:
1. A shingle removing apparatus comprising: a handle having a proximal end and a distal end; a stripper member adapted for inserting under a shingle, said stripper member having a first end portion and a second end portion, the first end portion of said stripper member being operatively coupled to the distal end of said handle such that the second end portion of said stripper member is reciprocally moveable up and down; a drive assembly adapted for driving at least a portion of said stripper member; and a drive linkage assembly with a lost motion mechanism for permitting a predetermined range of free pivotal movement of the drive linkage assembly prior to movement of said stripper member, said drive linkage assembly being operatively connected to said drive assembly and being operatively connected to said stripper member to cause the second end portion of said stripper member to reciprocally move up and down, wherein said drive linkage assembly comprising: a crank arm being coupled to said drive assembly for rotation thereby; a first link having first end and second end portions, the first end portion being pivotally connected to one of said crank arm and a second link, said first link including a slot spaced from the pivotal connection; and a second link pivotally associated with said slot so as to permit a predetermined range of free pivotal movement of said first link prior to movement of said second link.