ATTACHMENT STRUCTURE FOR SHEATH THERMOCOUPLE, PAD USED IN SAID ATTACHMENT STRUCTURE, AND METHOD FOR ATTACHING SHEATH THERMOCOUPLE

摘要

[Problem] To provide an attachment structure for a sheath thermocouple with which it is possible to suppress the number of components and stably maintain sufficient strength without the sheath thermocouple coming away from a pad even when the sheath thermocouple is subjected to bending, twisting, or pulling, the attachment structure also having excellent working efficiency in terms of attachment and detachment of the sheath thermocouple with respect to the pad. [Solution] An insertion groove part 2 and an engagement groove part 3 are provided to a pad 1. A recess groove 91 extending in the circumferential direction is provided to a sheath thermocouple 9. The engagement groove part 3 is configured from an inner spreading groove 12 in which are formed a relatively wide groove part 31 and a relatively narrow groove part 32 having opened outer portions in the radial direction. A retaining member 5 mounted on the sheath thermocouple 9 on an inner part through the location of the opened outer portion of the engaging groove part 3 abuts an inner wall surface 12a, thereby preventing the sheath thermocouple 9 from moving toward the axial-direction base end.