Kinked Bead Container Body Radial Compression
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Solution Overview
Problem
Metal containers require thicker walls for sufficient axial strength and radial compression resistance, which increases material costs and weight, necessitating a method to enhance strength using thinner materials.
Innovation Solution
A container body with a circumferential bead that is axially compressed and folded to create a kinked, closed structure, providing improved resistance to radial compression while allowing for the use of thinner materials, such as 0.12mm or 0.14mm thickness, and can be produced in various shapes and forms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If thicker metal walls are used to increase axial strength and radial compression resistance, then container strength is improved, but material cost and weight increase
Solution Approach 1:
The patent applies curvature by forming circumferential beads on the container wall that are subsequently axially compressed to create kinked, three-dimensional structures. These curved bead profiles (with radii of curvature specified in claims) transform the flat wall into a geometrically complex surface that resists radial compression more effectively than flat walls of the same thickness, enabling thinner walls while maintaining strength
Solution Approach 2:
The invention transitions from a two-dimensional flat wall structure to a three-dimensional kinked bead structure by applying axial compression. The beads fold inward or outward creating depth and volume in the wall structure, adding a third dimension that provides mechanical advantage against radial loads without significantly increasing material usage
2Strength
If thicker metal walls are used to increase axial strength and radial compression resistance, then container strength is improved, but material cost increases
Solution Approach 1:
The curved bead structures with specified radii of curvature create geometric reinforcement that distributes axial and radial loads more effectively through the wall structure. This curvature-based reinforcement allows thinner walls to achieve the same load-bearing capacity as thicker flat walls, reducing metal consumption while maintaining axial strength
Solution Approach 2:
The container wall becomes a composite structure combining the base metal material with the formed bead geometry. The bead structure acts as a reinforcing phase within the wall, creating a composite system where the geometric features enhance the mechanical properties of the base material, allowing reduced material quantity while maintaining strength
3Strength
If circumferential beads are axially compressed and folded to create kinked structure, then radial compression resistance is improved, but manufacturing complexity increases
Solution Approach 1:
The circumferential beads are formed on the container wall before the axial compression step. This preliminary formation of the bead geometry allows the subsequent compression to simply fold the pre-formed beads into their kinked configuration, rather than requiring complex tools to create the entire structure in one operation. The bead formation and compression are separated into distinct, simpler steps
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The kinked and closed bead structure significantly enhances radial compression resistance, enabling the production of containers with thinner materials while maintaining axial strength and aesthetic appeal, with the kinked bead being inaccessible from the interior or exterior, depending on its orientation.
Implementation Method 1
a circumferential bead is provided in a wall of the container body, the circumferential bead is axially compressed and folded towards the wall of the container body, such that the kinked and closed bead will impart the container body with an improved resistance to radial compression
Data Source
Figure 1A~1E
Figure 2~3E
Figure 4~6
AI summary
The present invention relates to a method of making a container body (8), comprising the steps of: iv) providing a round container body (8); v) forming at least one circumferential bead (12) in the container body; and vi) axially compressing the container body to kink and axially close the kinked bead (10), and to such container body (8) and container comprising same.