Patent ID: 7261180
Filing Date: 2007-08-28
Classification: H04R

Abstract:
1. A rigging system for speaker cabinets in a stack comprising a) a generally rectangular bracket having means to attach said bracket to a side panel of a first one of the speaker cabinets; b) a rear tie bar pivotally attached to an upper, rear portion of said bracket with a first arm extending upwardly and includes a first pivot attachment point for attachment to a second adjacent speaker cabinet above said first speaker cabinet in the stack; c) a front tie bar pivotally attached to an upper, forward portion of said bracket with a second arm extending upwardly for attachment to the second adjacent speaker cabinet above said first speaker cabinet in the stack; d) a lever arm having a first upper end which can be secured to a number of different arcuately spaced positions on a forward portion of said bracket and a second lower end which is pivotally attached to a lower rear portion of said bracket at a first pivot point and attachable to said rear tie bar of a third adjacent speaker cabinet below said first cabinet in the stack at a second pivot point axially spaced from said first pivot point creating a moment arm, such that when said first upper end of said lever arm is pivoted downwardly relative to said bracket from a first arcuately spaced position to a second arcuately spaced position, said moment arm causes all cabinets supported by said first cabinet to be rotated around a front edge by a first desired angular amount.