Patent ID: 6179133
Filing Date: 2001-01-30
Classification: H02B,H04Q

Abstract:
A rack assembly for mounting telecommunications equipment and adapted for withstanding seismic forces, comprising:(a) a main frame subassembly including an upper horizontal support member, a lower horizontal support member, a first vertical support member, and a second vertical support member spaced in parallel relation to the first vertical support member, the upper and lower horizontal support members securely interposed between the first and second vertical support members, and the first and second vertical support members each having a double-bend profile, wherein the double-bend profile is defined by an inside base portion, a first medial leg and a second medial leg each extending substantially orthogonally from the inside base portion, a first distal leg extending substantially orthogonally from the first medial leg in a direction towards the second medial leg, and a second distal leg extending substantially orthogonally from the second medial leg in a direction towards the first medial leg; and(b) an extension frame subassembly including an upper horizontal frame member, a lower horizontal frame member, a first vertical frame member, and a second vertical frame member spaced in parallel relation to the first vertical frame member, wherein the upper and lower horizontal frame members are securely interposed between the first and second vertical frame members, the lower horizontal frame member is securely attached to the upper horizontal support member of the main frame subassembly, and the first and second vertical frame members each have the same double-bend profile corresponding to the first and second vertical support members of the main frame subassembly.