Anti-backlash/anti-rattle lever
View Patent ↗An anti-backlash assembly of the type for transferring motion via a pin movable along a slot. The assembly comprises a pivot lever and a second lever member. The pivot lever comprises a body portion and a pivot lever portion extending from the body portion to a pivot lever distal end. The pivot lever portion defines a pin engagement slot extending from adjacent the pivot lever distal end toward the body portion. A pair of fingers extend in parallel and spaced relationship from the pivot lever distal end of the pivot lever portion toward the body portion to engage opposite sides of a pin of the engagement arm. Each of the fingers includes a pin engaging section extending to an inwardly extending distal end and a spring section extending in a for urging the fingers into clamping engagement with the pin.
1. An anti-backlash assembly of the type for transferring motion via a pin movable along a slot comprising;
a pivot lever including a body portion is disposed in a plane,
a pivot lever portion extends radially from said body portion to a pivot lever distal end,
a second lever member and a coupling to said pivot lever for movement therewith,
said coupling including a pin engagement slot and a pin slideable along said slot,
said slot being defined by a pair of fingers extending in parallel and spaced relationship for moving relative to one another to constantly engage the pin,
wherein each of said fingers includes a spring section extending in a semi-circular path from said pivot lever portion and transitioning into a pin engaging section having an inwardly extending distal end opposite that of said spring section,
wherein said spring sections urge said fingers toward one another such that said pin engaging sections maintain a clamping engagement to said pin throughout motion of said pin within said slot.
2. An assembly as set forth in claim 1 wherein said pivot lever portion include sides extending downwardly from said pivot lever distal end to define an opening between said sides and said pivot lever distal end, each of said fingers being disposed in free space in said opening.
3. An assembly as set forth in claim 1 wherein said body portion defines a mounting hole disposed about an axis.
4. An assembly as set forth in claim 3 wherein said body portion defines a plurality of apertures each extending radially from said mounting hole.
5. An assembly as set forth in claim 4 wherein each of said apertures includes a radial tooth extending inwardly from said body portion toward the shaft.