Title: Device for coupling in elastic fashion two rotating coaxial pieces, respectively interior and exterior, having a cylindrical interface

What is claimed is:

1. A device for interlocking in elastic fashion two coaxial rotating pieces, respectively interior and exterior, having a cylindrical interface, comprising: split pins which are introduced into seatings formed parallel to the rotation axis at the interface of the two pieces, wherein the pins are hollow steel cylinders split in the longitudinal direction, each pin being free to rotate in its seating and containing cylindrical shank means disposed within the pin with a predetermined clearance between the shank means and the pin to impose a limit on the reduction of the width of the split of the pin under the effect of an excessive couple.

2. A device according to claim 1, wherein the seatings respectively extend to the two opposite sides of the exterior piece.

3. A device according to claim 2, wherein the seatings are arranged in aligned pairs and the two seatings of the same pair are crossed by said shank means which has two end sections on which are disposed the two pins, these two sections being separated by a central thickening.

4. A device according to claim 1, further comprising a bracket attached to the exterior piece for axially retaining certain pins.

5. A device according to claim 1, further comprising a disc of which the interior edge is received in a groove formed in the interior piece for axially retaining the pins.

6. A device according to claim 1, wherein a second interior piece is located opposite the first mentioned interior piece, the two interior pieces both being interconnected each with the same exterior piece.

7. A device according to claim 6, wherein the shanks have an extraction grip at one end and at the opposite end have a head which allows the pins to be driven out when the shanks are extracted.


Other info:


Inventors: Lucas, Robert C. (Paris, FR)

Application Number: 06/089222
Filing Date: 1979-10-29
Publication_date: 1982-05-18
Assignee: Georges, Lucas Ets

Primary Class(es): 464/82
Other Classes: F16D3/56; F16D3/50; F16D3/56
US Patent Ref:

1460001	June, 1923	Twogood	64/14	Shaft coupling
1460869	July, 1923	Thropp	64/14	Flexible coupling
1878730	September, 1932	Sykes	64/14	Flexible coupling
2728208	December, 1955	Ehmann	64/11F	Flexible shaft coupling
3434303	March, 1969	Leyer	64/14	ARRANGEMENT FOR COUPLING SHAFTS

Other Refs: SU585333SU626271

December, 1977	64/11F
August, 1978	64/11F

Primary Examiner: Lazarus, Ira S.
Assistant Examiner:
Attorney: Dressler, Goldsmith, Shore, Sutker & Milnamow, Ltd.