Core wire deformation jig and core wire deformation method

A core wire deformation method for providing bends to a plurality of core wires which is exposed from an end of a multi-core cable so that tip side portions of the core wires are spaced and aligned on a predetermined arranging plane, the bends with the core wires being spread out starting from root sides of their exposed portions to the tip side portions, the core wire deformation method comprising:

• a first clamping step for clamping with a first clamping unit the plurality of core wires aligned on the arranging plane in a first clamping direction intersecting the arranging plane;
• a separation step for separating the plurality of core wires from each other, the separation pin being inserted between the plurality of core wires clamped with the first clamping unit in an insertion direction parallel to the first clamping direction;
• and
• a second clamping step for providing the bends to the plurality of core wires by clamping the plurality of core wires with a second clamping unit, with the separation pin inserted between the plurality of core wires, in a second clamping direction parallel to the arranging plane and intersecting the plurality of core wires and applying a pressure on the core wires.