Patent ID: 6640924
Filing Date: 2003-11-04
Classification: H04R,Y10T

Abstract:
A rigging side frame for a loudspeaker which can be interconnected with rigging side frames of other loudspeakers for hanging loudspeakers in stacked relation, wherein each loudspeaker in the stack has sides to which left and right rigging frames can be mounted, said rigging side frame comprisinga frame structure attachable to a side of a loudspeaker, said frame structure having a top end, a bottom end, a front, a rear, and rear corners, a rear link for pivotally linking the top rear corner of one rigging side frame mounted to one loudspeaker to the bottom rear corner of a rigging side frame mounted to another loudspeaker placed in stacked relation therewith, such that the rear corners of the stacked loudspeakers can be joined in a manner that permits the stacked loudspeakers to be pivotally splayed about the rear corners of the rigging side frames of the stacked loudspeakers, a cam plate link pivotally attached to a cam pivot point at one of the top and bottom ends of said frame structure and displaced from the rear corner toward the front of said frame structure, said cam plate link having at least two cam link openings located at a different radius from and a different angle about said cam pivot point, and a cam plate link attachment structure provided in the other of the top and bottom ends of said frame structure opposite said cam plate link for securing a cam plate link of another rigging side frame at a selected cam link opening of the cam plate link of the other rigging side frame, wherein a vertical splay angle between adjacent loudspeakers to which the adjacent side frames are mounted can be set according to which cam link opening of the cam plate link is selected to interconnect the side frames.