| 摘要 |
1,232,731. Starter drives. SOC. ANON. D.B.A. Sept.17, 1969 [Sept. 27, 1968; Dec. 4, 1968], No.45815/69. Heading F1K. A starter drive for an internal-combustion engine has a driving member 22 which is in threaded engagement with a driving-shaft 16 and operatively connected through a one-way clutch 20 to a drive pinion 18 slidably mounted on the driving-shaft, the driving member being automatically advanced to engage the drive pinion with an engine gear 24 when it is retarded relatively in rotation with respect to the driving-shaft by a braking device which comprises a non-rotatable axially movable friction assembly 34 slipped on the driving member and having two opposed friction surfaces one of the friction surfaces cooperating with the low friction surface of a low friction bearing means mounted on the driving member whereas the other surface is provided to engage a high friction surface of a part operatively connected to the driving member. Resilient return means 46 opposes the advance of the driving members and consists of spring means compressed between the friction assembly and the housing structure 10, the spring means urging the friction assembly towards abutment means 38 of the driving member through the low friction bearing means which thus support the load of the spring means, |
