Document Type and Number:
Japanese Patent JPS4953466
Kind Code:
A
Abstract:
An expansible linkage for use as a watchband, bracelet or similar article having two rows of overlapping staggered links, connecting members displaceably connecting the links of the inner row to the links of the outer row and springs in the inner row for urging the links from their expanded to their contracted positions. The springs are located only in the links of the inner row of links. Each of the links of the outer row has an outer wall, a narrower inner wall substantially parallel to the outer wall, a pair of substantially parallel first side walls connected to the opposite sides of the outer wall and a pair of second side walls which converge inwardly from the inner sides of the first side walls to lateral sides of the inner wall. In one embodiment, the outer wall of each of the links of the outer row of links has an opening formed at one side thereof intermediate its ends and an extension at the opposite side thereof which is of substantially the same size as said opening so that when the linkage is in contracted position the extension is positioned in the opening of the outer wall of the adjacent link. In this embodiment, each of one of the first side walls of each of the links of the outer row of links includes an opening formed therein which communicates with the opening in the outer wall of the link.
Application Number:
JP7297773A
Publication Date:
May 24, 1974
Filing Date:
June 29, 1973
Export Citation:
International Classes:
A44C5/04; A44C5/02; A44C5/08; (IPC1-7): A44C5/06