Yoke indexing mechanism for toroidal coil-winding machine

Claim 2

A toroidal coil winding machine for laying wire on a yoke, said machine having a base and mounted on said base a wire holding magazine, a shuttle ring, means to rotatably drive said wire holding magazine and said shuttle ring, a yoke holding and indexing means, and index drive means to drive said yoke holding and indexing means, wherein said yoke holding and indexing means includes: a first, a second and a third hollow post mounted on said base, each of said posts having a first wheel rotatably mounted on the top thereof, each of said first wheels having a flange portion to support said yoke, each of said posts having a second wheel rotatably mounted with respect thereto, connecting means within each post connecting said first wheel and said second wheel so that they rotate together, a center gear wheel means rotatably mounted on said base and driven by said index drive means and in mesh with each of said second wheels; said connecting means within said first and second posts being a hollow tubular member rotatably mounted within said respective post; a shaft within each of said two hollow tubular members and protruding from the top of its hollow tubular member, spring means to spring-load said shaft against movement in the direction of its axis, and yoke holding means positioned near the outer ends of each shaft, said yoke holding means having a freely rotatable portion to hold down said yoke and permit its rotation.

Claim 3

A coil winding machine as in claim 1 wherein said center gear wheel means includes a first center gear wheel connected to said index drive means, a second center gear wheel, and spring means connecting said first and said second center gear wheel so that they are under spring tension about a common center axis, said first and second center gear wheels having the same diameter and number of teeth so that their teeth may be aligned.

Claim 4

A coil winding machine as in claim 1 wherein said second and third posts are fixed to said base and said third post is movably mounted on said base, and further including movement means to selectly move said third post on said base toward or away from said yoke.

Claim 5

A coil winding machine as in claim 3 wherein said movement means includes a handle and a plurality of fastening means, wherein said post has a flange having elongated openings through which said fastening means extend.

Claim 6

A coil winding machine as in claim 1 wherein said connecting means in said third post is a rigid shaft fixed to said first and second wheels.

Claim 7

A coil winding machine as in claim 1 wherein said yoke holding means includes a tubular member fixedly mounted on said shaft perpendicularly to its axis and said freely rotatable portion is a hold-down roller having a cylindrical end portion and a shaft portion, said shaft portion being freely rotatably mounted in said yoke holding means tubular member.

Claim 8

A toroidal coil winding machine for laying wire on a yoke, said machine including a base and mounted on said base a wire holding magazine, a shuttle ring, means to rotatably drive said wire holding magazine and said shuttle ring, a yoke holding and indexing means, and index drive means to drive said yoke holding and indexing means, wherein said yoke holding and indexing means includes: a first, a second and a third hollow post mounted on said base, said second and third posts being fixed to said base and said third post being movably mounted on said base, movement means to selectly move said third post on said base toward or away from said yoke; each of said posts having a first wheel having exterior gear teeth rotatably mounted on the top thereof, each of said first wheels having a flange portion to support said yoke, each of said posts having a second wheel rotatably mounted with respect thereto, connecting means within each post connecting said first wheel and said second wheel so that they rotate together, a center gear wheel means rotatably mounted on said base and driven by said index drive means and in mesh with each of said second wheels, said center gear wheel means including a first center gear wheel connected to said index drive means, a second center gear wheel and spring means connecting said first and said second center gear wheel so that they are under spring tension about a common center axis, said first and second center gear wheels having the same diameter and number of teeth so that their teeth may be aligned; said connecting means within said first and second posts being a hollow tubular member rotatably mounted within said first and second posts; a shaft within each of said two hollow tubular members and protruding from the top of their hollow tubular members, spring means to spring-load said shaft against movement in the direction of its axis, and yoke holding means positioned near the outer ends of each shaft, said yoke holding means having a freely rotatable portion to hold down said yoke and permit its rotation; wherein said connecting means in said third post is a rigid shaft fixed to said first and second gear wheels and wherein said yoke holding means includes a tubular member mounted on said shaft perpendicularly to its axis and said freely rotatable portion is a hold-down roller having a cylindrical end portion and a shaft portion, said shaft portion being freely rotatably mounted in said yoke holding means tubular member.

Claim 9

A toroidal coil winding machine for laying wire on a yoke, said machine including a base and mounted on said base a wire holding magazine, a shuttle ring, means to rotatably drive said wire holding magazine and said shuttle ring, a yoke holding and indexing means, and index drive means to drive said yoke holding and indexing means, wherein said yoke holding and indexing means includes: a first, a second and a third hollow post mounted on said base, said second and third posts being fixed to said base and said third post being movably mounted on said base, movement means to selectly move said third post on said base toward or away from said yoke; each of said posts having a first wheel having exterior gear teeth rotatably mounted on the top thereof, each of said first wheels having a flange portion to support said yoke, each of said posts having a second wheel rotatably mounted with respect thereto, connecting means within each post connecting said first wheel and said second wheel so that they rotate together, a center gear wheel means rotatably mounted on said base and driven by said index drive means and in mesh with each of said second wheels, said center gear wheel means including a first center gear wheel connected to said index drive means, a second center gear wheel and spring means connecting said first and said second center gear wheel so that they are under spring tension about a common center axis, said first and second center gear wheels having the same diameter and number of teeth so that their teeth may be aligned; said connecting means within said first and second posts being a hollow tubular member rotatably mounted within said first and second posts; a shaft within each of said two hollow tubular members and protruding from the top of their hollow tubular members, spring means to spring-load said shaft against movement in the direction of its axis, and yoke holding means positioned near the outer ends of each shaft, said yoke holding means having a freely rotatable portion to hold down said yoke and permit its rotation; wherein said connecting means in said third post is a rigid shaft fixed to said first and second gear wheels and wherein said yoke holding means includes a tubular member mounted on said shaft perpendicularly to its axis and said freely rotatable portion is a hold-down roller having a cylindrical end portion and a shaft portion, said shaft portion being freely rotatably mounted in said yoke holding means tubular member.