192 clutches and power-stop control – Clutches – Plural clutch-assemblage
Patent
1975-07-28
1977-03-29
Herrmann, Allan D.
192 clutches and power-stop control
Clutches
Plural clutch-assemblage
74801, 192 51, 192 67R, 408139, F16D 1100, F16D 2106
Patent
active
040144216
ABSTRACT:
The invention is an improved clutching means for driving between axially aligned parts and is particularly adaptable in tapping attachments having free axial float. Direct and reverse drive is provided for by way of planetary gears for driving in direct and reverse drive in an exemplary attachment in which the clutching means is embodied. Spring biased clutch drive means is provided for both the direct and reverse drive. The clutch drive means is in the form of a sleeve having a ball race carrying driving balls interposed between axial splines on a driving part and on the driven splindle part. The splines have arcuate side surfaces to conform to the driving balls providing for substantially frictionless drive in both direct and reverse modes, the balls being free to roll. The splines are especially configurated to facilitate engagement of the balls with them. A single drive sleeve is resiliently carried by one of the parts for providing both direct and reverse drive.
REFERENCES:
patent: 2291151 (1942-07-01), Dunn
patent: 2544809 (1951-03-01), Stanley
patent: 2743804 (1956-05-01), Roberts
patent: 3050321 (1962-08-01), Howe et al.
patent: 3051013 (1962-08-01), Zagar
patent: 3871498 (1975-03-01), Kitaguchi
Herrmann Allan D.
Tapmatic Corporation
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