Cutting Insert Projection Part Prevents Fracture

The patent applies local quality by providing a reinforcement rib that locally increases the wall thickness around the through hole. Instead of uniformly increasing the entire insert size or wall thickness, the reinforcement is concentrated at the critical area where the through hole passes through, locally improving strength without affecting other areas of the insert.

The patent introduces a third dimension by adding a reinforcement rib that extends in the wall thickness direction. This dimensional addition creates an overlapping structure where the rib intersects with the through hole, effectively distributing stresses and preventing fracture without requiring a larger screw diameter.

The reinforcement function is segmented from the main insert body by using a separate reinforcement rib structure. This modular approach allows the reinforcement to be designed and positioned independently, optimizing its effectiveness while keeping the overall structure manageable and manufacturable.

Instead of trying to make the entire insert thicker or larger to prevent fracture, the patent inverts the approach by adding a localized reinforcement element that specifically targets the weak area. This inverted thinking focuses strength where it is most needed rather than uniformly increasing overall dimensions.