Omnidirectional bellows

摘要

Omnidirectional bellows for reciprocal displacement is provided which, by preventing disproportional stretching or sagging in the midsection of bellows from occurring under any circumstances of positional alteration or intensive vibrations, allows normal reciprocal displacement operation to be continued. The omnidirectional bellows comprises, in a combination of a guide-rail (4) with the bellows formed of multiple concaved sheets (51) of same size and same shape communicating each with other for covering flexibly longitudinally along with one side of the guide-rail (4), a contour along with each inner border (6) of said multiple concaved sheets (51) being formed to follow cross-sectional profile in a direction perpendicular to the longitudinal direction of the guide-rail (4), and at least said each inner border (6) being surface treated with material having small slipping resistance and large friction strength. <IMAGE>