Belt installation tool
View Patent ↗A belt installation tool for installing a belt without rotating the pulley or the tool about a pulley axis of rotation. The tool comprises a ramp that engages a pulley flange. The ramp comprises a connecting member for connecting the ramp to the flange. After the ramp is connected to a pulley flange a belt is loosely engaged with the ramp. A first lever arm connected to the ramp is used to pry the ramp and belt outward by pivoting about the first connecting member until a second connecting member is engaged with the pulley flange. The ramp further comprises a member for laterally urging the belt. Once the ramp is fixed on the pulley flange a second lever arm, connected at a pivot point, urges the belt laterally onto the pulley. The second lever arm is moveable in a direction normal to the movement of the first lever arm, thereby laterally urging the belt onto a pulley.
1. A belt installation tool comprising:
an arcuate belt bearing surface having a first clamp member and a second clamp member for engaging a pulley;
a first lever for pivoting the belt bearing surface about the first clamp member;
the second clamp member cooperatively engaging a pulley with the first clamp member for holding the belt bearing surface in a predetermined position;
a moveable member cooperatively disposed with the belt bearing surface for laterally urging a belt from the belt bearing surface to the pulley; and
a second lever pivotally engaged with the first lever for urging the movable member.
2. The belt installation tool as in claim 1 , wherein the member further comprises an arcuate surface for progressively engaging the second lever.
3. The belt installation tool as in claim 1 , wherein the belt bearing surface has a radius substantially equal to a pulley radius.
4. The belt installation tool as in claim 1 wherein the belt bearing surface has a length approximately equal to or greater than a belt angle of wrap α° on the pulley.
5. The belt installation tool as in claim 1 , wherein the belt bearing surface comprises a low friction material.
6. The belt installation tool as in claim 1 , wherein the belt bearing surface is lubricated.
7. The belt installation tool as in claim 1 , wherein the member further comprises a flange for engaging a belt.