TWISTED WIRE AND METHOD OF PRODUCING TWISTED WIRE

• US 20090241314A1
• Filed: 03/24/2009
• Published: 10/01/2009
• Est. Priority Date: 03/25/2008
• Status: Active Grant

• Current Assignee: Yazaki Corporation
• Original Assignee: Yazaki Corporation
• Inventors: WATANABE, Daisuke
• Granted Patent: US 8,182,930 B2
• Time in Patent Office: Days
• US Class Current: 29/33.F
• CPC Class Codes: H01B 13/0271 Alternate stranding processes
• CPC Class Codes: Y10T 29/4989 with spreading of cable strands
• CPC Class Codes: Y10T 29/5187 Wire working
• CPC Class Codes: Y10T 428/12333 Helical or with helical component

Abstract

A twisted wire 1 is produced by twisting two wires 2 together. When that portion of the twisted wire 1 extending from one ends 3 of the two wires 2 to a first predetermined position 4 is defined as a one end-side twisted portion 5, and that portion of the twisted wire 1 extending from the first predetermined position 4 to a second predetermined position 6 is defined as an intermediate twisted portion 7, and that portion of the twisted wire 1 extending from the second predetermined position 6 to the other ends 8 of the two wires 2 is defined as an other end-side twisted portion 9, a twisting pitch of the one end-side twisted portion 5 and the other end-side twisted portion 9 is smaller than a twisting pitch of the intermediate twisted portion 7.

Claims

1. A twisted wire, in which a twisting pitch of opposite end portions of the twisted wire is smaller than a twisting pitch of an intermediate portion of the twisted wire.

2. A twisted wire production method in which wires to be twisted together are arranged side by side, and a moving member is moved from one ends of the arranged wires toward the other ends of the arranged wires, so that the wires are twisted together between the moving member and the one ends, and a twist of the wires is removed between the moving member and the other ends of the wires;

wherein;

when a portion of the twisted wire that extends from the one ends to a first predetermined position is defined as a one end-side twisted portion, and a portion of the twisted wire that extends from the first predetermined position to a second predetermined position is defined as an intermediate twisted portion, and a portion of the twisted wire that extends from the second predetermined position to the other ends is defined as an other end-side twisted portion,

a speed of movement of the moving member is lower at the one end-side twisted portion and the other end-side twisted portion than at the intermediate twisted portion, or a speed of twisting of the wires together is higher at the one end-side twisted portion and the other end-side twisted portion than at the intermediate twisted portion.

3. A twisted wire production method in which, with a rotary member disposed at a twist front end position or a twist start position defined in time of twisting operation, one of wires to be twisted together is fed toward the twist start position while twisted in a predetermined direction, and the other of the wires is fed toward the twist start position while twisted in the predetermined direction, and the twisting operation is effected by the twisting of each of the wires and an action of the rotary member;

wherein;

when a portion of the twisted wire that extends from the twist front end position or the twist start position to a first predetermined position is defined as a one-end side twisted portion, and a portion of the twisted wire that extends from the first predetermined position to a second predetermined position is defined as an intermediate twisted portion, and a portion of the twisted wire that extends from the second predetermined position to a twist rear end position or a twist finish position is defined as an other end-side twisted portion, a speed of movement of the rotary member is lower at the one end-side twisted portion and the other end-side twisted portion than at the intermediate twisted portion.