Patent ID: 6913411

Claim:
A coupling structure for a band comprising: a plurality of piece members wherein each piece member comprises a generally U-shaped configuration having a pair of spaced-apart protruding coupling members at one end and a centrally located coupling projection at an opposite end, wherein said spaced-apart coupling members are adapted to receive the central coupling projection of an adjacent piece member therebetween when adjacent piece members are mated together; each of said spaced-apart protruding coupling members and said central coupling projections having coupling holes formed therethrough in a direction transverse to the piece member wherein the coupling holes of the spaced-apart protruding coupling members and the coupling hole of the central coupling projection of an adjacent piece member are coaxially aligned when adjacent piece members are mated together; at least one projection formed in an internal wall of the coupling hole in said spaced-apart protruding coupling members by pressing in a direction coaxial with the coupling hole, said projection extending in a direction transverse to the axis of the coupling hole and positioned at an outer end of said coupling hole; and an elongated coupling member inserted in the coupling holes of the spaced-apart protruding coupling members and the coupling hole of the central coupling projection of an adjacent piece member, whereby said elongated coupling member is engaged by said projection so that adjacent piece members are coupled to each other.