Mounting structure to the nail body is simple, the mounting operation becomes easy, and to provide a device to fix Hakareru also shorten the time mounting operation, the deformation of the nails. Contact with the locking portion of the first formed in the wire hard having an elastic, with a locking piece having a first engaged with the side edges while the width direction of the pawl, on the surface of the nail body a first support portion which includes the contact surface of the first being to support the locking portion of the first, includes a connecting piece of the first to one end and the other end is connected to the first support portion correcting a first member and a connecting portion of the first, Contact with the engaging portion of the second formed by the wire of hard having elasticity, with a locking piece of the second locked to the other side edge in the width direction of the pawl, on the surface of the nail body a second support portion which includes the contact surface is a second, supporting the engaging portion of the second, with a connecting piece of the second to the one end and the other end is connected to the second support portion and a annular tensile member straightening second member including a connecting portion of the second, and is formed by wires of soft having elasticity, is hooked to the connecting piece and the second connecting piece of the first, By the portion opposite to the portion that is hooked to the coupling and the second connecting piece of the first is turned good, the tensile member has a width of pawl engaging portions and the second engaging portion of the first correct device is characterized in that to form a correction operating section for holding in a state of tensile received predetermined tensile force on the middle portion side of the direction, the deformation of the nails.爪体への装着構造が簡単で、装着作業が簡便となり、且つ、装着作業時間の短縮化も図れる、爪の変形を直す装置を提供する。弾性を有した硬質の線材で形成され、爪体の幅方向の一方側端縁に係止される第1の係止片を備えた第1の係止部と、爪体の表面に当接される第1の当接面を備
