Bobbin drive mechanism for a rotary braider

Details Bobbin drive mechanism for a rotary braider Bobbin drive mechanism for a rotary braider

D - Textiles, Paper

04

C

87/1

D04C 3/38 (2006.01) D04C 3/42 (2006.01)

Patent

CA 1061145

BOBBIN DRIVE MECHANISM FOR A ROTARY BRAIDER Abstract of the Disclosure A bobbin drive mechanism is for a rotary braider of the type in which a circular array of outer strand supply bobbins and a circular array of inner strand supply bobbins are caused to rotate one array relative to the other The outer strand supply bobbins are fixedly mounted on a first circular table of the braider, the inner strand supply bobbins are mounted for relative rotational movement about a circular track of the first table and strands from the outer strand supply bobbins are capable of being guided inwardly and outwardly of the track and the inner strand supply bobbins thereon to produce braiding. The bobbin drive mechanism includes a second circular table coaxially aligned with the first table and adapted to rotate relative thereto. A circular array of pairs of shafts corresponds to the array of inner strand supply bobbins and each is mounted for rotation on the second table. The shafts include a planetary gear fixedly mounted thereon in alignment with and engaging a circular gear on the first table to cause rotation of the shaft during relative rotation of the table. A crank is fixedly mounted on an end of each shaft to rotate therewith. A pair of radially extending dogs associated with each inner strand supply bobbin are mounted on the second table and aligned with a slotted fitting of the associated inner strand supply bobbin. Linkage between each dog and its respective crank causes inward and outward movement of the dog during rotation of the shaft. Each of the cranks of the pair of shafts is prepositioned to cause one of the dogs to be in driving engagement with the slotted fitting of the inner strand supply bobbin as the other of the dogs is displaced therefrom to allow the strand from the outer strand supply bobbin to freely pass therebetween.

285319

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