PROBLEM TO BE SOLVED: To provide a fixing device capable of reliably and firmly fixing a drive shaft disposed on a top face of a rack and repeating the correct operation together with the rack over an extended period.SOLUTION: A fixture comprises: an adherend having a circularly bent portion which contacts a top face of the drive shaft, and a sleeve portion； and a support member of which bottom portion is fastened to a top face of a rack, and both open upper end portions of which contact the drive shaft and closely contact the inside of the adherend. Both the upper end portions of the support members are bent inwardly upward such that when a fastening screw is tightened from outside the adherend, the drive shaft is lifted upward toward an inner surface of the circularly bent portion of the adherend. Consequently, the drive shaft is firmly coupled to and held by the top face of the rack by means of the fixture.【課題】ラック上面に配置した駆動軸を確実強固に固定し、長期にわたりラックとともに正しい作動を繰り返すことができる固定装置を提供する。【解決手段】固定具が駆動軸の上面に接する円曲部及び袖部を有する被着体と、底部をラック上面に固着し開放状の両側上端部を前記駆動軸に当接し且つ被着体の内側に密接する支持体で構成される。支持体の両側上端部は内方上向きに屈曲していて被着体の外方から締め付けねじを緊締すると駆動軸を被着体の円曲部内面に押し上げるため固定具を介して駆動軸がラック上面と強固に結合保持される。【選択図】図２
