Airbag Bracket Rounded Edge Extrusion

The patent applies local quality by creating a rounded surface specifically at the edge portion of the bracket where the fabric tab attaches. This localized modification (rounded surface with increased radius) is applied only at the critical attachment point rather than throughout the entire bracket, allowing thin bracket edges elsewhere while maintaining high reliability at the attachment point.

The patent implements spheroidality by forming a rounded surface with a specified radius of curvature at the bracket edge. This curved geometry eliminates sharp corners that would concentrate stress, distributing the load more evenly across the fabric tab attachment point and preventing tearing during airbag deployment.

The patent converts the potentially harmful sharp edges created by the coining process into beneficial rounded surfaces. By applying a rounding operation to the coined opening, the sharp edges that would cause fabric tab tearing are transformed into smooth, curved surfaces that distribute stress and prevent damage, effectively converting a harmful feature into a beneficial one.

The patent applies parameter changes by modifying the geometric parameters of the bracket opening edge. Specifically, the radius of curvature is increased from zero (sharp edge) to a specified minimum value, and the edge thickness is controlled to ensure adequate load bearing. This parameter modification eliminates the harmful sharp edges while maintaining manufacturing precision.