Unitary Molded Baseball Cap with Seamless Crown and Brim
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Solution Overview
Problem
Conventional headwear with seams and separate visors create hard edges and pressure points on the forehead, causing discomfort and fatigue, especially for varying forehead shapes.
Innovation Solution
A unitary molded structure formed via a single step molding process using a textile laminate with multiple layers, including fabric and foam, to create a seamless integration of the crown and brim, allowing for an obtuse transition angle and flexible fit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If conventional caps are formed with multiple panels connected by seams, then the cap can be manufactured using standard sewing processes, but the seams create hard edges that cause discomfort and pressure points on the wearer's head
Solution Approach 1:
The patent merges multiple separate cap panels into a single seamless molded structure. The crown and brim are formed as one integrated piece using injection molding, eliminating the need for separate panels and seams. This resolves the contradiction by removing the harmful seams while maintaining manufacturability through a different process (injection molding instead of sewing).
Solution Approach 2:
The patent replaces the mechanical sewing process with injection molding. Instead of stitching panels together mechanically, the cap is formed by injecting thermoplastic material into a mold that creates the entire cap structure in one piece. This substitution eliminates seams and their associated discomfort while preserving ease of manufacture through the molding process.
2Device complexity
If the visor is connected at a sharp right angle with the cap, then the structure is simple and rigid, but it creates hard edges of contact with the forehead causing discomfort
Solution Approach 1:
The patent replaces the sharp right-angle connection between the visor and cap with a curved, rounded transition. The injection molding process creates a smooth, continuous surface that curves from the visor into the crown, eliminating hard edges. This curvature maintains structural integrity while removing the harmful contact points with the forehead.
3Adaptability or versatility
If caps are formed with a standard configuration, then they can fit a variety of heads, but they create pressure points on different forehead shapes due to fixed geometry
Solution Approach 1:
The patent incorporates flexible elements and adjustable features into the molded cap structure. The thermoplastic material allows for controlled flexibility in key areas, and the design includes adjustable components that enable the cap to adapt to different forehead shapes and sizes. This dynamic capability allows the cap to maintain versatility while eliminating fixed pressure points.
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
Provides a comfortable fit that minimizes pressure points and adapts to various head sizes and shapes by eliminating seams and hard edges, enhancing wearability.
Implementation Method 1
The package is shaped via a single step molding process utilizing heat and pressure, thereby forming the unitary molded body or structure.
Implementation Method 2
The package is shaped via a single step molding process utilizing heat and pressure, thereby forming the unitary molded body or structure.
Data Source
AI summary
An article of headwear includes a crown portion dimensioned to cover a portion of a forehead of a wearer when the article of headwear is worn by the wearer, and a brim that extends transversely from the crown. The crown and brim are formed of a single unitary molded body including an upper fabric layer, a lower fabric layer that faces toward the head of the wearer, and an intermediate layer disposed between the upper fabric layer and the lower fabric layer, and each of the upper fabric layer, the lower fabric layer and the intermediate layer continuously extends between the crown and the brim. A transition angle is defined at a transition between the brim and the crown, wherein the transition angle is obtuse.