Patent ID: 7219771
Filing Date: 2007-05-22
Classification: B66B

Abstract:
1. An elevator counterweight for connection to an elevator car by flexible support means and movable along counterweight guide rails comprising: a counterweight frame adapted to be connected to the flexible support means and moved along the counterweight guide rails; a plurality of weight elements fixed in said frame; upper and lower guide shoes attached to said frame and adapted to engage the counterweight guide rails; and said frame including at least four vertical beams spaced over a width of said frame and at least three horizontal crossbars attached to said vertical beams, said crossbars extending over the width of said frame, said beams and said crossbars forming at least four grid fields adapted to receive said weight elements with said weight elements being fixed in at least one of said grid fields, said lower guide shoes being attached to an upper surface of a lowermost one of said crossbars.