Coupling assembly component

F - Mech Eng,Light,Heat,Weapons – 16 – D

Patent

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Details

F16D 25/12 (2006.01) F16D 25/04 (2006.01) F16D 65/00 (2006.01)

Patent

CA 2073227

A coupling assembly component transmits force between a pair of elements and dampens the transmission of vibration between the elements. The coupling assembly component includes an annular base which is adapted to be connected with one of the elements. An annular fluid extensible tube is coaxial with the base and is extensible under the influence of fluid pressure in the tube to move friction surfaces into engagement. The tube includes a reinforcing layer which is enclosed by a cover layer formed of an elastomeric material. An annular layer of vibration damping material is molded between and is bonded to the cover layer of the tube and the base. The layer of vibration damping material and cover layer have different vibration damping characteristics. The layer of vibration damping material has a radial extent which is at least twice as great as the radial extent of a portion of the cover layer disposed between the reinforcing layer of the tube and the annular layer of vibration damping material.

Cette invention concerne une pièce d'accouplement servant à transmettre une force entre une paire d'éléments et à atténuer la transmission de vibrations de l'un à l'autre. La pièce d'accouplement comprend une base annulaire adaptée pour se raccorder à l'un des éléments. Un tube annulaire gonflable ayant le même centre que la base annulaire prend de l'expansion lorsqu'il reçoit une fluide sous pression et, ce faisant, met en contact deux surfaces de friction. Le tube comporte une couche de renfort sous gaine extérieure en élastomère. Une couche annulaire de matériau amortisseur de vibrations est injectée entre la gaine extérieure du tube et la base annulaire et collée aux deux. La couche de matériau amortisseur de vibrations et la gaine extérieure du tube ont des caractéristiques vibratoires différentes. La couche de matériau amortisseur de vibrations a une épaisseur radiale d'au moins le double de l'épaisseur radiale d'une partie de la gaine extérieure se trouvant entre la couche de renfort du tube et ladite couche annulaire de matériau amortisseur de vibrations.

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