A spring clutch assembly with reduced radial bearing forces

Details A spring clutch assembly with reduced radial bearing forces A spring clutch assembly with reduced radial bearing forces

E - Fixed Constructions

06

B

E06B 9/56 (2006.01) E06B 9/90 (2006.01)

Patent

CA 2149438

A spring clutch assembly with reduced radial bearing forces is described. The clutch includes a shaft(43), at least first (49) and second (51) helically wound axially mounted springs for making frictional contact with the shaft (43), and engaging means (53,55) corresponding to each of the first (49) and second (51) springs for selectively applying a tightening force to one end of each of the springs (49,51) in order to prevent rotation with respect to the shaft (43). Each of the engaging means (53,55) is radially and symmetrically disposed along the shaft (43) for eliminating radial bearing forces induced by the spring ends (57, 59, 61, 63).

Voici la description d'un embrayage à ressort qui présente des forces d'appui radiales réduites. L'embrayage comprend un arbre (43), au moins un premier (49) et un deuxième (51) ressorts hélicoïdaux montés dans le sens axial pour assurer un contact par frottement avec l'arbre (43), et des dispositifs d'embrayage (53,55) correspondant à chacun du premier (49) et du deuxième (51) ressorts pour exercer sélectivement une force de serrage à une extrémité de chacun des ressorts (49, 51) afin d'empêcher la rotation par rapport à l'arbre (43). Chacun des dispositifs d'embrayage (53, 55) est disposé radialement et symétriquement le long de l'arbre (43) pour éliminer les forces d'appui radiales induites par les extrémités (57, 59, 61, 63) des ressorts.

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