Gear interference preventing mechanism in multi-spindle head att

Details Gear interference preventing mechanism in multi-spindle head att Gear interference preventing mechanism in multi-spindle head att

1983-02-16

1985-05-21

Braun, Leslie A.

Machine element or mechanism

Gearing

Plural power paths to and/or from gearing

74397, 74431, 409230, F16H 3706

Patent

active

045178577

ABSTRACT:
A multi-spindle head attachment in which a positively rotated main spindle gear is meshed with a plurality of intermediate gears which are, in turn, meshed with spindle gears fitted respectively onto spindles each adapted to grip a drill, a tap or the like. Further, one of the spindles can be located in the position where its axis is aligned with the center of axis of the main spindle gear. Disc-like interference preventing members for preventing interference between the intermediate gears and the spindle gears, are provided to the intermediate gears and/or the spindle gears. Each interference preventing member has a diameter slightly larger than that of its corresponding addendum circle of the intermediate gear or spindle gear, and therefore its outer peripheral surface protrudes from the addendum circle of each gear. A slight gap is formed between each interference preventing member and the end face of each gear.

REFERENCES:
patent: 4305189 (1981-12-01), Miyakawa
patent: 4365916 (1982-12-01), Miyakawa

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