Rotation detection sensor and resin molding die for the sensor

A resin molding die comprising:

• a first molding die configured to clamp and fix a leading end portion of an assembly type sensor body having a sensor element and a cable electrically connected to the sensor element;
• second and third molding dies that enclose a base end portion of the sensor body and that can be clamped and separated to/from each other and that both can be clamped to the first molding die so as to form a cavity for charging resin to the base end portion and an outer circumferential portion of the cable;
• and
• a fourth molding die that is clamped to the second and third molding dies clamped to each other to form a curved portion of the cable, the fourth molding die forming the cavity in cooperation with the second molding die and the third molding die, the fourth molding die clamping a portion of the cable further extending from the curved portion in cooperation with the second molding die,
• wherein:
• the second molding die and the third molding die have a first holding portion configured to hold straight a portion of the cable which extends from the sensor body;
• the third molding die has a second holding portion configured to hold the cable with application of a bending force thereto such that the curved portion is formed by a side of the cable which extends further from its portion held by the first holding portion;
• and
• the fourth molding die has a third holding portion configured to hold the cable with application of a bending force thereto at a portion thereof further extending from the portion held by the second holding portion.