Polymeric Crash Box With Internally Tapered Channels

The patent applies local quality by differentiating the channel structures into two distinct types: first channels with substantially vertical walls for impact absorption, and second channels with substantially inclined walls for stability. Each channel type is strategically positioned and designed with specific wall orientations to address different functional requirements - the vertical walls provide rigidity and impact resistance, while the inclined walls prevent sudden collapse during angled impacts by distributing stresses more evenly.

The patent resolves this contradiction by implementing local quality through differentiated channel designs. The first channels with vertical walls are optimized for impact absorption, while the second channels with inclined walls are specifically designed to reduce extraction forces during molding. The inclined walls create a self-release mechanism that allows the larger crash box structure to be extracted from the mold with reduced forces, enabling production of larger, more effective shock absorbers without requiring excessively high extraction forces.

The patent applies segmentation by dividing the alveolar structure into two distinct channel systems with different orientations. The first channels with vertical walls handle the primary impact absorption through controlled plastic deformation, while the second channels with inclined walls provide structural support that maintains constant collapsing force. This segmentation allows the crash box to progressively dissipate kinetic energy through folding and deformation while maintaining stability and force constancy throughout the collapse process.