Wire harness loosening jig

• US 6,785,958 B1
• Filed: 07/20/2000
• Issued: 09/07/2004
• Est. Priority Date: 06/12/1995
• Status: Expired due to Fees

• Current Assignee: Yazaki Corporation
• Original Assignee: Yazaki Corporation
• Inventors: Uchida, Masaya, Saito, Takahiro, Usui, Kenji, Yoneyama, Norihiro
• Primary Examiner(s): TUGBANG, ANTHONY D
• Application Number:
  US09/621,138
• Time in Patent Office: 1,510 Days
• Field of Search: 297/60, 297/48, 297/55, 29/33.F, 297/58, 298/58, 298/85, 298/60, 298/28, 294/61, 425/123, 140/118, 140/149, 269/45, 269/97, 269/299, 269/903, 264/272.14, 264/272.15, 264/277
• US Class Current: 29/760
• CPC Class Codes: B60R 16/0222 Grommets
• CPC Class Codes: D07B 7/18 for spreading or untwisting ropes or cables into constituent parts for treatment or splicing purposes
• CPC Class Codes: H02G 1/00 Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
• CPC Class Codes: H02G 15/013 Sealing means for cable inlets inlets for cables filled with, or surrounded by, gas or oil H02G15/32
• CPC Class Codes: Y10S 269/903 Work holder for electrical circuit assemblages or wiring systems
• CPC Class Codes: Y10T 29/4989 with spreading of cable strands
• CPC Class Codes: Y10T 29/5187 Wire working
• CPC Class Codes: Y10T 29/53213 Assembled to wire-type conductor
• CPC Class Codes: Y10T 29/53243 Multiple, independent conductors
• CPC Class Codes: Y10T 29/53265 with work-holder for assembly

Abstract

A jig for loosening electric wires of a wire harness passed through a grommet is disclosed. The jig includes a fixing-side clamping portion for clamping the one end of a wire harness, a guide rail extending in a longitudinal direction of the wire harness, a bearing slidably engaged with the guide rail; a lock portion for locking said bearing to the guide rail, a circular rotating member, supported by said bearing, for rotating the wire harness in a circumferential direction of the wire harness; and a movable-side clamping portion, integrally attached to the rotating member, for clamping the other end of the wire harness. The rotating member may have a spiral cam groove, and the bearing may have an engagement protrusion to be engaged with the cam groove so that when the one clamping portion is inverted, the rotating member can move in its longitudinal direction. The one clamping portion may include a rachet mechanism. Further, the one clamping portion may be shifted in a direction of compressing the wire harness by a motor.

Claims

1. A wire harness loosening jig in combination with a wire harness comprising:

a base plate;

a fixing-side clamping portion attached to one end of the base plate having a first pair of clamps for clamping one end of a wire harness;

a guide rail attached to said base plate extending in a longitudinal direction of said wire harness, when said wire harness is arranged in said wire harness loosening jig for loosening;

a moveable-side clamping portion slidably arranged with the guide rail having a second pair of clamps for clamping an other end of said wire harness; and

clampers, arranged to shift one of said first pair of clamps and one of said second pair of clamps in a radial direction of said wire harness to clamp the wire harness, so that when said movable-side clamping portion is moved towards the fixing-side clamping portion said wire harness is compressed and wires disposed therein are loosened.

2. The wire harness loosening jig according to claim 1, wherein said movable-side can be moved towards the fixing-side clamping portion by a driving mechanism.

3. A wire harness loosening jig in combination with a wire harness comprising:

a base plate;

a fixing-side clamping portion attached to one end of the base plate having a first pair of clamps for clamping one end of a wire harness;

a guide rail attached to said base plate extending in a longitudinal direction of said wire harness, when said wire harness is arranged in said wire harness loosening jig for loosening;

a moveable-side clamping portion slidably arranged with the guide rail having a second pair of clamps for clamping an other end of said wire harness; and

clampers, arranged to shift one of said first pair of clamps and one of said second pair of clamps in a radial direction of said wire harness to clamp the wire harness;

wherein said movable-side clamping portion is movable towards the fixing-side clamping portion, so as to compress said wire harness and loosen wires disposed therein, by a driving mechanism including a screw shaft rotatably supported by a bearing on the side of the base plate, a motor for driving the screw shaft, and a lever for driving the motor.