| 摘要 |
PCT No. PCT/GB91/01680 Sec. 371 Date May 21, 1993 Sec. 102(e) Date May 21, 1993 PCT Filed Sep. 30, 1991 PCT Pub. No. WO92/06282 PCT Pub. Date Apr. 16, 1992.A driving connection between a hollow camshaft (1) and its driving shaft (5) located within it, the axes (3, 8) of these two members being parallel but laterally displaceable to vary the characteristics of rotation of the camshaft in response to constant-speed rotation of the driving shaft. The camshaft supports a slideway (11) in which moves a slider (12) which makes a rotary joint with the end of an arm (15) carried by the driving shaft. The geometry of the arm is such that the center of rotation (18) of the rotary joint lies within the outline of the periphery of the driving shaft (5) when viewed along its axis (8), thus promoting radial compactness. The essential component of the arm may be an item (15) of crescent-shaped cross-section, the concave surface (19) of the crescent registering with the surface of the driving shaft. |
