Anti-backlash gear mechanism

Machine element or mechanism – Gearing – Backlash take-up

Patent

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Details

74411, 74440, 74443, F16H 5518

Patent

active

047005823

ABSTRACT:
In a manual power transmission for automotive vehicles, a gear noise suppressor and vibration isolator includes elastomeric sleeve preferably fitted within several holes through the thickness of the gear wheel, angularly spaced about the axis of the wheel. The spacers define a space within which a metal sleeve is inserted and the sleeve defines a central bore through which a pin is fitted. A load plate located adjacent an end face of gear wheel has teeth formed on its outer periphery which are adapted to mesh with the teeth of an input pinion with which the gear wheel is continuously engaged. Pins having a headed end that abuts the load plate hold the plate in contact with the elastomeric sleeves and prevent contact of the load plate against the gear wheel. The sleeves resiliently deflect and permit engagement of the load plate and gear wheel with the drive pinion. The sleeves resiliently bias the teeth of the load plate against the trailing faces of the pinion teeth and the driving faces of the pinion teeth contact the teeth of the gear wheel.

REFERENCES:
patent: 1435571 (1922-11-01), Wright
patent: 1748820 (1930-02-01), Alexandrescu
patent: 1750679 (1930-03-01), Mitchell
patent: 2607238 (1952-08-01), English et al.
patent: 2659244 (1953-11-01), Guy
patent: 2845809 (1958-08-01), Hetzel
patent: 3037396 (1962-06-01), Martin
patent: 3127784 (1964-04-01), O'Neill
patent: 3318193 (1967-05-01), Rogg
patent: 3365973 (1968-01-01), Henden
patent: 3487706 (1970-01-01), Resener
patent: 3496794 (1970-02-01), Forichon
patent: 3535948 (1970-10-01), Winzeler et al.
patent: 3648534 (1972-03-01), Fagarazzi
patent: 3682015 (1972-08-01), Richardson
patent: 3803935 (1974-04-01), Nozawa
patent: 3803936 (1974-04-01), Kroeper
IBM Technical Disclosure Bulletin vol. 14 No. 5 "Anti-Backlash Gear" Arseneault et al. Oct. 1971.

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