Belt Detachment Tool Curved Transferring Surface

The belt-transferring surface is designed with a curved shape having a radius of curvature of 5-11 mm, which matches the curvature of the belt's inner circumferential surface. This curved surface guides the belt smoothly during detachment, preventing sharp edges or abrupt transitions that would cause cracking or fraying, while still enabling effective belt removal from the pulley.

The patent specifies an optimal range for the radius of curvature of the belt-transferring surface (5-11 mm). This parameter is carefully selected to balance two competing requirements: a smaller radius would reduce tool size but increase contact stress causing belt damage, while a larger radius would reduce contact stress but increase tool size. The specified range achieves the optimal compromise, maintaining acceptable tool dimensions while preventing belt damage through reduced contact stress.

The belt-climbing surface is designed with a controlled upward slope angle that balances guidance effectiveness with force reduction. A steeper slope would provide better guidance to lift the belt away from the pulley, but would increase the contact force and risk of belt damage. The patent optimizes this slope parameter to achieve sufficient belt guidance while maintaining contact forces below the threshold that causes cracking or fraying.