| 摘要 |
PURPOSE:To fasten shafts without eccentricity and with high rigidity in a torsional direction by forming polygonal prism composing faces on porsions of divided pieces of a joint main body corresponding to a shaft center while forming a shaft fastening space when assembling the divided pieces, and providing fastening and loosining means on both divided pieces. CONSTITUTION:A joint main body 1 is divided into pieces 1a, 1b at a shaft center a v-shaped groove part 2 having an opening angle theta = 45 deg. is formed on a portion of each of divided pieces 1a and 1b corresponding to a shaft center of each of divided pieces 1a, 1b. A shaft fastening space 3 is formed when the divided pieces 1a and 1b are combined due to inclined faces 2a of the groove 2. It is, therefore, possible to fasten shaft parts 7, 8 without eccentricity, thereby to obtain a joint device having high rigidity and accuracy in a torsional direction. |
