Lifting arms for vertically raising flat panels - panels hooked to horizontal bar located in vertical channels

摘要

A horizontal bar (1) is located in two vertical channels by guide rollers which are fixed to both ends of the bar. Two triangular lever plates (7, 8) have pivots in each corner such that two identical corners are linked to fixed pivot pins (9, 10). Two other identical corners are linked by a push rod (13) whilst the third pair of pivots are connected to the bar (1). The bar is moved vertically upwards when a cylinder applies a torque to plate (7). Support arms are hooked over the top edge of the rectangular bar (1) so that they can raise stacks of flat panels vertically upwards.