|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||254/391 ; 254/411 ; 254/223 ; 254/217|
|발명자 / 주소|
|인용정보||피인용 횟수 : 49 인용 특허 : 0|
A ratchet-type tensioning mechanism for a rope or cord has a rotatable sheave with faces having radially extending serrations. A releasable ratchet mechanism permits rotation of the sheave in one direction but not the other. A plurality of serrations circumscribes the sheave, which is closely fitted within a curved surface within a housing within which the sheave is rotatably mounted. The curved surface forces the rope into the sheave and maintains it in non-slippiong contact therewith. An opening in the side of the housing can be provided to permit hand...
A ratchet-type tensioning mechanism for a rope or cord comprising a rotatable sheave having a base and two opposed faces with a plurality of generally radially extending serrations having alternating ridges and valleys circumscribing each of said two opposed faces of said sheave, each of said ridges extending outwardly from the base of said sheave, said ridges being positioned at regular intervals around the circumference of said sheave, a housing within which said sheave is rotatably mounted, said housing having an opening for ingress of a rope or cord ...