Patent ID: 7428946
Filing Date: 2008-09-30
Classification: H04R

Abstract:
1. A suspension device for spanning between an inner member and an outer member arranged outwardly of the inner member, said suspension device comprising: a plurality of roll sections configured to span between the inner member and the outer member and being arranged in a loop; and a plurality of boundary sections, each of said boundary sections being arranged between an adjacent pair of said roll sections, such that said roll sections and said boundary sections are arranged so as to form a continuously alternating pattern of said roll sections and said boundary sections, wherein the continuously alternating pattern of said roll sections and said boundary sections forms a continuous closed loop having a continuous surface, wherein each of said roll sections includes an inner-connecting edge configured to connect to the inner member and an outer-connecting edge configured to connect to the outer member, wherein said roll sections are circumferentially arranged in a continuous closed loop, wherein each of said roll sections constitutes a semi-cylindrical curved surface spanning from said inner-connecting edge to said outer-connecting edge, and wherein for each of said roll sections, at least one of said inner-connecting edge and said outer-connecting edge constitutes a straight edge, said straight edges of said roll sections together forming the continuous closed loop.