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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS6244182
Kind Code:
Y2
Abstract:
1525453 Forward-and-reverse gearing; clutch release bearings CHRYSLER CORP 28 Jan 1977 [23 April 1976] 03565/77 Headings F2D and F2L In a forward-and-reverse gearing between an input shaft 14 and an output shaft 16 clutch assembly comprises a clutch member 18 fixed for rotation with the input shaft 14 and having friction surfaces 18a, 18b engageable by clutch members 20, 22 respectively, clutch member 22 rotating with the output shaft 16 through helical cam surfaces between the clutch member 22 and a gear 48 fixed on the output shaft and clutch member 20 being coupled through helical cam surfaces 52, Fig. 7, with a gear 46 rotatably mounted on the input shaft 14. The gears 46, 48 are interconnected by a gear 50. A pair of forks, 32, 34 each engage in a groove 42 of a respective ring rotatably mounted, through bearings 44, on a clutch member 20, 22. The forks are moved together to provide forward, neutral or reverse by engaging clutch members 22, 18 for forward drive, neither clutch member 20 or 22 with member 18 for neutral and clutch members 20 and 18 for reverse drive through gears 46, 50 and 48. A screw-and-nut arrangement may move the forks together. The helical cam surfaces cause the transmitted torque to bias the clutch members 20, 18 or 22, 18 together. Instead of the bevel gearing shown a layshaft may be provided using spur gears with an idler gear for the drive reversal (Figs. 12 and 13, not shown). The friction surfaces 18a, 18b are grooved to facilitate oil removal and the angle of the frusto-conical surfaces differs between male and female members to facilitate disengagement. The axially movable clutch members may be the male members, instead of as shown (Fig. 11, not shown). Paddles 64 on a thrust washer 56 facilitate oil circulation through passages 68, 70, 72. The drive may be in a boat (Figs. 1 and 2, not shown).

Application Number:
JP7076686U
Publication Date:
November 19, 1987
Filing Date:
May 13, 1986
Export Citation:
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International Classes:
B63H23/08; F16D13/26; F16D21/04; F16H3/14; (IPC1-7): F16H3/14