Tapered Grip Bore Design to Prevent Adhesive Stripping

The patent applies preliminary action by removing the sharp edges (flashing) from the bore opening before installing the grip. This pre-processing step eliminates the harmful sharp edges that would otherwise strip the adhesive during installation, allowing the tight tolerance design to work effectively without causing adhesive loss.

The patent converts the harmful sharp edges created during manufacturing into a beneficial feature by deliberately creating a slight taper at the bore opening. This taper, while deviating from perfect cylindrical symmetry, actually helps guide the shaft into the bore and prevents adhesive stripping, transforming a manufacturing defect into a functional advantage.

The patent removes sharp edges through a preliminary action (edge removal process) performed during or after bore manufacturing. This additional step eliminates the harmful effect of sharp edges on adhesive integrity while maintaining the overall simplicity of the manufacturing process.

The patent applies local quality by modifying only the specific region where sharp edges exist (the bore opening) while leaving the rest of the bore and grip structure unchanged. This localized modification removes harmful sharp edges without requiring complete redesign or complex manufacturing processes.

The patent applies local quality by creating a taper only at the opening region of the bore rather than throughout the entire bore length. This localized tapering maintains adhesive integrity where it is most needed (at the entrance) while minimizing the overall geometric complexity and manufacturing difficulty.

The patent applies partial action by creating a slight taper rather than a full conical bore. This partial modification is sufficient to prevent adhesive stripping and guide shaft insertion without requiring complete conical geometry, thereby limiting the increase in manufacturing complexity.