Terminal-fitted wire manufacturing method

Patent metadata

Field	Value
Publication number	US-9331399-B2
Application number	US-201113813724-A
Country	US
Kind code	B2
Filing date	Jul 28, 2011
Priority date	Sep 28, 2010
Publication date	May 3, 2016
Grant date	May 3, 2016

Abstract

It is aimed to enable a heat shrinkable tube to be mounted on a connected part of a core exposed portion of a wire and a terminal with high positioning accuracy. A terminal-fitted wire manufacturing method is for mounting a heat shrinkable tube on a connected part of a core exposed portion of a wire and a terminal. After the wire is inserted into the heat shrinkable tube, the terminal is connected to the core exposed portion. Thereafter, the heat shrinkable tube is moved to a position for covering the connected part of the core exposed portion and the terminal, and a part of the heat shrinkable tube is temporarily fixed to at least parts of the wire and the terminal. Thereafter, the heat shrinkable tube is mounted by being heated and thermally shrunk.

First claim

The invention claimed is:

1. A terminal-fitted wire manufacturing method for mounting at least one heat shrinkable tube on a connected part of a core exposed portion of at least one wire and at least one terminal, comprising:
(a) stripping a coating of a leading end portion of the at least one wire to define the core exposed portion;
(b) inserting the leading end of the at least one wire into the at least one heat shrinkable tube that has an adhesive layer formed on an inner peripheral portion thereof;
(c) connecting the at least one terminal to the core exposed portion of the at least one wire;
(d) moving the at least one heat shrinkable tube to a position for covering the connected part of the core exposed portion and the at least one terminal and part of the coating adjacent the core exposed portion;
(e) fixing a part of the heat shrinkable tube to the coating by selectively pressing and heating the part of the heat shrinkable tube so that the adhesive layer contacts and adhesively engages and thermally shrinks about the coating;
(f) moving the at least one wire and the at least one terminal, with the at least one heat shrinkable tube temporarily fixed thereto, to a heating element; and
(g) permanently mounting the at least one heat shrinkable tube onto the connected part of the core exposed portion of the at least one wire and the at least one terminal by heating and thermally shrinking the heat shrinkable tube into engagement with the core exposed portion of the at least one wire.

2. The terminal-fitted wire manufacturing method according to claim 1 , wherein
the at least one heat shrinkable tube, the at least one wire, and the at least one terminal comprise a plurality of heat shrinkable tubes, a plurality of wires, and a plurality of terminals, respectively;
the wires are arranged at the heating element, in a state in which each of the wires is connected to one of the plurality of terminals with the plurality of heat shrinkable tubes temporarily fixed thereto; and
the plurality of heat shrinkable tubes are mounted to the connected part of the core exposed portion of the wires and the plurality of terminals in unison.

Assignees

• Itou Akira
• Goto Kouichirou
• Sumitomo Wiring Systems

Inventors

• Itou Akira
• Goto Kouichirou

Classifications

• H01R4/185

  combined with a U-shaped insulation-receiving portion · CPC title

• H01R43/00

  Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors (of trolley lines B60M1/28) · CPC title

• H01R3/00 Primary

  Electrically-conductive connections not otherwise provided for · CPC title

• H01R43/05

  with wire-insulation stripping · CPC title

• H01R43/005 Primary

  for making dustproof, splashproof, drip-proof, waterproof, or flameproof connection, coupling, or casing · CPC title