Crimped terminal wire having a rubber plug, method for making same and tool for assembling same
AssigneeSumitomo Wiring Systems, Ltd.
InventorAkira Nabeshima
Life of this patent
Estimating the term…
Abstract
A rubber plug for sealing is engaged with a covered wire, and the rubber plug is prevented from being disconnected when an insulation barrel of a terminal fitting is clamped to the plug. The insulation barrel is curved and clamped along a maximum extent of the outer circumferential surface of the rubber plug, while both end portions of the insulation barrel are overlapped. Both ends of the insulation barrel can be prevented from biting onto the surface of the rubber plug.
Claims14
A crimped terminal wire having a rubber plug in which said rubber plug is inserted into a fore end of a thin insulating portion of a thin insulated wire and clamped by an insulation barrel of a metal terminal fitting, said insulation barrel including end portions that are crimped onto an outer circumferential surface of said rubber plug, said insulation barrel being curved along said outer circumferential surface, the end portions of said insulation barrel being overlapped.
A wire terminal comprising:
- a terminal fitting;
- a wire barrel, coupled to said terminal fitting, and adapted to clamp an exposed region of a wire;
- a rubber plug having a through-bore providing a passage for an end of said wire, said rubber plug having a crimping portion;
- and
- an insulation barrel, coupled to said wire barrel, and adapted to provide a tight interference fit between the rubber plug and the insulation barrel, regardless of the size of the wire, said insulation barrel further comprising a first clamping piece and a second clamping piece, the first and second clamping pieces being of different lengths so that the first and second clamping pieces are shifted from a centerline of said wire on which a pressing force is applied, said first and second clamping pieces overlapping as a result of said pressing force.
A wire terminal comprising:
- a terminal fitting;
- a wire barrel, coupled to said terminal fitting and adapted to clamp an exposed region of a wire;
- a rubber plug having a through-bore providing a passage for an end of said wire, said rubber plug having a crimping portion having a diameter;
- and
- connecting means for connecting the wire barrel to the crimping portion, said connecting means including means for variably adjusting the connecting means such that the connecting means includes a structure and shape that matches the diameter of the crimping portion, regardless of the size of the crimping portion.
A method for making a wire terminal having a terminal fitting, a wire barrel, a rubber plug, and an insulating barrel, the method comprising the steps of:
- providing the insulating barrel with a first clamping piece and a second clamping piece;
- placing a crimping portion of a rubber plug between the first and second pieces;
- bending and conforming the first piece to the shape of the crimping portion;
- and
- bending and conforming the second piece to the shape of the first piece and the crimping portion.
An assembly tool for clamping an insulating barrel of a wire terminal to a substantially round rubber plug having a wire therethrough comprising:
- a main body having a general bell-shaped cross-section including a first arm and a second arm, the first and second arms having first and second respective inner surfaces, the first and second inner surfaces having different heights with an offset, the first and second inner surfaces each having a substantially round shape that matches a shape of said substantially round rubber plug such that said first and second arms are forced into a substantially round shape when a tool pressing force is applied.
Dependencies are inferred from the claim text.