| 摘要 |
<p>A connector link having substantially the configuration of a common link of chain consisting of two identical arcuate end members, each having a major leg and a minor leg and being retained in secure engagement by a transverse member inserted therethrough, the improvement of centrally disposed abutting plane faces of the said major legs of said two end members, wherein, upon the imposition of longitudinal stress on said link, the pressure of said faces against each other is increased to move the major legs toward each other upon the imposition of longitudinal stress on said link; said abutting faces being disposed obliquely from the lateral axis of said link. The abutting faces define matable reverse curves wherein a portion of each face lies between acute curves, each terminating in a substantially straight line disposed in the longitudinal axis of said link. The link of this invention eliminates the problem of a load stress imposed entirely upon the securing pin as is now common where such devices consist of a pair of end pieces secured together by a transverse pin extending through a centre bushing disposed between the legs of the mated end pieces.</p> |
