| 摘要 |
<p>1495919 Friction clutches; change-speed gear CHRYSLER CORP 12 May 1976 [23 July 1975] 19500/76 Headings F2C and F2D A drive arrangement comprises an input shaft having a clutch member 18 fixedly mounted on it, either of a pair of clutch members 20, 22 rotatably mounted on the input shaft being engageable with the clutch member 18 to drive a respective gear 46 or 48 through camming surfaces 52 (Fig. 8) and so drive an output shaft 16 in forward or reverse through a gear 50. The clutch members 18 and 20 or 22 have interengaging frusto-conical surfaces, those of member 18 being grooved. The gears 46, 48 are axially fixed and rotatable on shaft 12, the camming surfaces 52 providing an additional clutch-engaging force. Forks 32 and 34 engage in grooves 42 of members 40 which in turn are rotatably mounted, through needle bearings 44, relative to the clutch members 20, 22. The forks 32, 34 are connected together to move one clutch member 20, 22 out of engagement as the other is engaged. The input may, in an alternative embodiment (Fig. 9, not shown), be to a shaft positioned as shaft 16 with the output from a shaft in the position of the input shaft. The drive is in a housing 11 containing lubricant, a thrust washer 58 having vanes 64 for directing this through 66 to a bore 17 in the input shaft, from which radial bores 72 distribute the lubricant to the clutches and gears. The drive is for use in a boat.</p> |
