| 摘要 |
1,030,360. Vibratory mechanisms. FYNE MACHINERY & ENGINEERING Ltd. March 3, 1965 [March 25, 1964], No. 12603/64. Heading F2X. [Also in Division B1] A vibrator comprises a mass 6 rotatable out of balance in a casing 1, coating parts 8 and 9 of the mass and casing being formed for positive engagement to eliminate slip and to provide a stop-up ratio between rotation and vibration frequencies. A shaft 5 and universal coupling 7 rotate the mass 6 while a plain track 10 takes the centrifugal load and determines the depth of engagement of the parts 8 and 9. In an alternative construction, the coupling 7 is of the Oldham type and toothed parts providing positive engagement with the casing are provided at both ends of the mass 6. In the construction of Fig. 1, the part 8 may be triangular in cross-section to co-operate with a square recess in the part 9 or it may have three equi-spaced ribs to co-operate with a star-like aperture having four triangular recesses. |
