Flexible coupling

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

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Details

F16D 3/78 (2006.01)

Patent

CA 2472251

A flexible coupling (10) is provided to connect a flange (17) on a drive shaft to a flange (19) on a driven shaft. Circumferentially spaced fastening means (12A-12F) provide bores through the coupling through which bolts (16A-16F) can be passed to connect it alternatively to the one and then the other flange (17, 19). Adjacent fastening means (12A-12F) are interconnected by links (13A- 13E) and washers (14A, 14B) are positioned at opposite ends of the stack of links at each fastening means. In accordance with the invention the washers (14A, 14B) are formed with peripheral grooves (15A, 15B) which will be entered by the plastics material forming the body (11) of the coupling, thus locking the washers (14A, 14B) against being expelled when bolts (16A-16F) are subsequently passed through the bores.

L'invention concerne une pièce d'accouplement flexible (10) qui permet de relier une collerette (17) d'arbre d'entraînement à une collerette (19) d'arbre mené. Des dispositifs d'assemblage à montage circonférentiel (12A-12F) forment dans la pièce d'accouplement des alésages qui sont traversés par des boulons (16A-16F) pour relier cette dernière en alternance à la première puis à la seconde collerette (17, 19). Des dispositifs d'assemblage adjacents (12A-12F) sont reliés ensemble par des liaisons (13A-13E), des rondelles (14A, 14B) étant disposées aux extrémités opposées de l'empilement de liaisons au niveau de chaque dispositif d'assemblage. Selon l'invention, ces rondelles (14A, 14B) sont formées par des gorges périphériques (15A, 15B) dans lesquelles vient se loger la matière plastique qui constitue le corps (11) de la pièce d'accouplement. Ceci permet de bloquer les rondelles (14A, 14B) et d'empêcher leur éjection lorsque les boulons (16A-16F) traversent les alésages.

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