US 5,509,861 AGranted

Eccentric motion transmitting device with pins gyrating within respective stationary circular openings

AssigneesPlumettaz SA, Unipat AG

InventorAndrzey B. Wacinski

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Abstract

A motion transmitting device comprising input and output drive shafts. An eccentric is provided on the input drive shaft and supports a carrier in which an array of pins are disposed. The pins are extended from one end face of the carrier for intermittent engagement with respective "open mouthed" openings provided in a reaction plate fixed to the housing of the device in order to define the gyratory motion of the carrier. The output shaft is provided with a geared member, and where between adjacent teeth on the geared member, a profile of part semi-circular shape is provided which become sequentially and intermittently engaged by all the pins during one complete rotation of the output shaft, and where the number of teeth is one less than the number of pins.

Claims11

Dependent claims

A motion transmitting device including a housing structure comprising gear means attached to an output shaft;

a carrier rotatably supported on an input shaft driven eccentric, the carrier having a generally circular array of longitudinal pins mounted thereon such that the pins project from the carrier for intermittent engagement with the gear means;
and a reaction plate fixed to the housing structure of the device and having a plurality of open mouthed openings for intermittent engagement with the pins and where the reaction plate and the carrier being constructed and disposed relative to each other such that relative gyratory movement transverse to the pin axes causes the pins and the gear means to engage and disengage to cause relative rotation of the gear means, wherein the respective dimensions of the pins and openings are such that each pin always engages the same opening.

Dependencies are inferred from the claim text.