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US 4,385,486 AGranted
Apparatus for manufacturing open cord
AssigneeTokusen Kogyo Co., Ltd.
InventorsShouji Iwata, Masaru Tanaka, Fumio Yamashita, Hideharu Kurobe, Takuo Itani
Life of this patent
Estimating the term…
Abstract
An apparatus is provided for manufacturing an open cord to be used as a reinforcement for automobile tires, conveyor belts, etc. and having uniform spaces between steel wires and stable construction.
Claims9
An apparatus for manufacturing an open cord formed of a plurality of wire strands which are intertwisted evenly with spaces therebetween, said apparatus comprising:
- a machine base;
- feed reel means for feeding a plurality of wire strands;
- a twist starting roller for converging said wire strands drawn from said feed reel means;
- a false twisting roller for imparting twisting strains to said converged wire strands;
- a cradle swingably mounted between a pair of flyers positioned oppositely, rotatably and drivably on said machine base, said converged wire strands being twisted twice by said flyers to form a cord;
- an overtwist roller mounted on said cradle for imparting an overtwist to said cord which has been twisted twice;
- a captan and a take-up reel for taking up said cord;
- and
- a lay plate fixed with respect to an inner race of a bearing means having an outer race fixed with respect to said machine base, said lay plate having therein a plurality of holes through which respective of said wire strands pass, such that said lay plate is rotatable within said bearing means by passage of said wire strands through said holes, said holes being equally spaced around a circumference passing through the centers of said holes.
6 more elements
An apparatus for manufacturing an open cord formed of a plurality of wire strands which are intertwisted evenly with spaced therebetween, said apparatus comprising:
- a machine base;
- a cradle swingably mounted between a pair of flyers positioned oppositely, rotatably and drivably on said machine base, said wire strands being bunched and twisted twice by said flyers to form a cord;
- an overtwist roller mounted separately from said cradle for imparting an overtwist to said cord which has been twisted twice;
- a capstan and a take-up reel, mounted separately from said cradle and downstream of said overtwist roller with respect to the direction of movement of the cord through the apparatus, for taking up said cord;
- and
- a lay plate fixed with respect to an inner race of a bearing means having the outer face fixed with respect to said machine base, said lay plate having therein a plurality of holes through which respective of said wire strands pass, such that said lay plate is rotatable within said bearing means by passage of said wire strands through said holes, said holes being equally spaced around a circumference passing through the centers of said holes.
3 more elements
Dependencies are inferred from the claim text.