Patent ID: 8651495

Claim:
A jig for manufacturing a squeeze packing comprising a ring finished to predetermined dimensions, wherein the ring has at least one arbitrary portion thereof cut surfaces extending diagonally so as to form a predetermined angle θ with respect to a radial direction of the ring, said cut surfaces having two non-uniform S-shaped profiles extending through the width and the thickness or diameter of the ring, the S-shaped profiles having different curvatures in each side view, and said cut surfaces having three-dimensional curved surfaces in a width direction across a front side and a reverse side, said jig characterized in having, on a substrate, a fixed-side clamp and a twist-side clamp, the fixed-side clamp being capable of immobilizing one arbitrary location on an endless ring finished to predetermined dimensions and the twist-side clamp being capable of immobilizing the ring, which is twisted about a circumferential direction axis; and having, on a surface of the substrate between the fixed-side clamp and the twist-side clamp, a cutting line groove on said substrate and that diagonally intersects a line linking the two fixed side clamp and twist-side clamp, a first locating corner member associated with and adjacent to said fixed-side clamp, a second locating corner member associated with and adjacent to said twist first-side clamp.