Tensioner

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

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

F16H 7/12 (2006.01) F16F 7/08 (2006.01) F16H 7/08 (2006.01) F16H 7/08 (2006.01)

Patent

CA 2404927

The invention comprises a self-contained mechanical belt tensioner that produces damping which is a function of the applied hubload through the effect of frictional forces derived from the sliding action of mutually opposing wedges. A first wedge or conical piston is contained within a housing. The conical piston cooperates with a second or conical wedge. A surface of the conical wedge slides on the inner surface of the housing. The conical wedge is expandable in a direction normal to the inner surface of the housing. A spring urges the conical wedge into engagement with the conical piston. As the pulley is loaded, as with an impulse load, the piston will move into the conical wedge. This, in turn, will cause the conical wedge to expand against the inner surface of the housing. The expansion of the conical wedge in the housing will increase the frictional force between the conical wedge and the housing. This will have the effect of damping movements of the conical piston and, in turn, of the pulley. The greater the impulse, then the greater the expansion of the conical wedge. This increases the resultant frictional force resisting movement between the conical wedge and the housing. As the load moves toward a minimum, the frictional force is abated to a low level allowing ease of retraction of the piston.

cette invention concerne un tendeur de courroie mécanique complet qui produit un effet d'amortissement, lequel est fonction de la charge résultant de forces de frottement produites par l'action coulissante de coins opposés. Un premier coin ou piston conique est logé dans un boîtier. Ce piston conique coopère avec un second coin. Une surface du coin glisse sur la surface intérieure du boîtier. Le coin est extensible dans une direction perpendiculaire à la surface intérieure du boîtier. Un ressort force le coin à s'engager dans le piston conique. Lorsque la poulie est soumise à une charge, par impulsion par exemple, le piston pénètre dans le coin. Ce mouvement amène à son tour le piston à se dilater contre la surface intérieure du boîtier. L'expansion du coin dans le boîtier s'accompagne d'une augmentation de la force de frottement entre le coin et le boîtier avec pour conséquence un amortissement des déplacements du piston conique et ipso facto, de la poulie. Plus l'impulsion est importante, et plus grande est l'expansion du coin. Le mouvement de résistance au forces de frottement augmente entre le coin et le boîtier. Lorsque la charge retombe, la force de frottement diminue également, ce qui facilite le rappel du piston.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Tensioner does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Tensioner, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tensioner will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1902902

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.