US 6,386,900 B2Granted

Insulation-displacement terminal fitting

AssigneeSumitomo Wiring Systems, Ltd.

InventorsMasahide Hio, Eiji Kojima

Life of this patent

Estimating the term…

Loading patent…

Abstract

An insulation-displacement terminal has opposed side walls (12) and a wire-receiving space therebetween. V-shaped insulation-displacement portions (16) are formed by a pair of plates (16F, 16R) that are bent from the side walls (12) and project into the wire-receiving space. A bending angle (β) between one plate (16R) and the side wall (12) is larger than a bending angle (α) between the other plate (16F) and the side wall (12). A pulling force on the wire (W) does not make a loose movement since the bending angle of the plate (16F) located at the side behind with respect to a pulling direction is a right angle. Further, since the bending angle (β) between the plate (16R) and the side wall 12 is larger, an angle (γ) between the plates (16F) and (16R) of the insulation-displacement portion (16) is sufficiently large to ensure a wide contact area with a core (Wb) of the wire (W). Thus, a high contact reliability can be secured.

Claims14

Dependent claims

An insulation-displacement terminal fitting for use with a wire (W) having a core (Wb) and an resin coating (Wa) surrounding the core (Wb), the insulation-displacement terminal fitting having opposed first and second side walls (12) and a wire-receiving space therebetween, first and second substantially V-shaped insulation-displacement portions (16;

17;
18) projecting from the respective first and second side walls (12) and into the wire-receiving space, each said insulation-displacement portion (16;
17;
18) being formed by first and second plates (16F, 16R;
17F, 17R;
18F, 18R) bent from the respective side wall (12) at a selected bending angle and meeting at a projecting end of the respective insulation-displacement portion (16;
17;
18), the bending angle of the first plate (16F;
17F;
18F) of at least the first insulation-displacement portion (16;
17;
18) to the first side wall (12) being different from the bending angle of the second plate (16R;
17R;
18R) of the first insulation-displacement portion (16;
17;
18) to the first side-wall (12), wherein insertion of the wire (W) transversely into the wire-receiving space causes the projecting ends of the insulation-displacement portions (16;
17;
18) to cut the resin coating (Wa) of the wire (W) and contact the core (Wb) of the wire (W).

15 more elements

Dependencies are inferred from the claim text.