PURPOSE: To minimize generation of shear stress becoming the cause of ply separation in a laminated body by forming the difference part in level of a sample vessel into a circular arc shape and forming the circular arc width of a rotor laminated body receiving the difference part in level of a reinforced laminated body having large elasticity modulus.
CONSTITUTION: An R part, namely a circular arc shape 5 part is provided to the difference in level of a sample vessel 4 and force 12 exerted to the longitudinal direction of the sample vessel 4 is received in this part. Further the circular arc width 13 correspondent to the shape 5 of an FRP laminated body 2 of a rotor 1 is formed of a reinforced laminated body 3 having elasticity modulus larger than the other part of laminated body 2. The large parts of force 12 of the longitudinal direction of the sample vessel 4 can be supported by both the circular arc shape 5 and the reinforced laminated body 3 receiving it by constituting such a structure and both improvement of quality and high velocity of the rotor are enabled.
AIZAWA MASAHARU
KATO MASAMI
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