Disposable Cap Stiffener and Sweat Pad
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Solution Overview
Problem
Baseball-style caps face challenges in maintaining their shape and cleanliness when displayed or worn, as existing stiffeners are inconvenient, disposable, or lead to soiling and discomfort, while aftermarket sweat pads require frequent cleaning or replacement and can cause staining.
Innovation Solution
A flexible, shape-retentive accessory made from plastic with moisture-blocking properties is placed inside the cap's crown to maintain its shape and prevent contaminant transmission, using a press fit mechanism without separate fasteners, and incorporating moisture-absorbing layers and air passages for breathability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If removable shape retaining elements are used to maintain cap shape, then the cap maintains its shape, but the elements are expensive, inconvenient to install and remove, and require storage
Solution Approach 1:
The patent uses a disposable cardboard stiffener that is inexpensive and single-use, eliminating the need for complex removable elements that require storage and reinstallation. The cardboard insert is placed in the crown space to maintain shape during display, then discarded after sale, solving the contradiction between shape maintenance and operational convenience.
Solution Approach 2:
The invention extracts the shape-retaining function from complex removable elements and implements it through a simple disposable insert that is placed once and never removed. This separates the shape maintenance function from the wearability function, allowing the cap to be displayed in proper shape without requiring reusable elements that complicate operation.
2Shape
If cardboard stiffeners are left in place at displays, then the cap maintains its shape, but the insert becomes abrasive on the wearer's head and detracts from the feel of the cap
Solution Approach 1:
The cardboard stiffener is designed as a disposable element that serves its shape-maintenance function only during display. After the cap is sold and worn, the stiffener is discarded, ensuring it never contacts the wearer's head. This eliminates the harmful abrasive effect while preserving the shape maintenance benefit during the display phase.
Solution Approach 2:
The invention segments the cap into two functional parts: a display phase with the cardboard stiffener for shape maintenance, and a wear phase without the stiffener for comfort. This temporal segmentation allows the same cap to serve different purposes at different times without the stiffener interfering with wearer comfort.
3Object-affected harmful factors
If sweat pads are used to protect the cap from perspiration, then the cap is protected from soiling, but the pads require frequent cleaning or replacement and can cause staining
Solution Approach 1:
The patent applies a disposable sweat pad made from non-woven polypropylene material that absorbs perspiration during display and initial wear attempts. The pad is discarded with the cap or easily replaced, eliminating the need for frequent cleaning and maintenance of reusable sweat pads. This solves the contradiction by protecting the cap from soiling without requiring time-consuming cleaning cycles.
Solution Approach 2:
The sweat pad acts as an intermediary barrier between the wearer's perspiration and the cap's interior surface. This disposable mediator absorbs and contains contaminants, protecting the cap fabric from direct contact with sweat and dirt, while the pad itself is discarded rather than cleaned, saving time and effort.
4Object-affected harmful factors
If the accessory blocks moisture migration, then contaminant transmission is reduced, but breathability may be compromised
Solution Approach 1:
The accessory body is made from a porous plastic material that allows air passage through its structure. This porous construction enables breathability and vapor transmission while the material's structure prevents liquid moisture and contaminant migration. The patent thus resolves the contradiction by using a material that selectively permits gas flow while blocking liquid contaminants.
Solution Approach 2:
The accessory combines plastic material with moisture-absorbing layers to create a composite structure. The plastic provides the moisture-blocking barrier, while the moisture-absorbing layers and porous structure maintain breathability. This composite approach allows simultaneous achievement of contaminant blocking and air flow properties.
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 accessory effectively maintains the cap's shape, prevents soiling and discomfort, and reduces the need for frequent cleaning or replacement, enhancing the cap's appearance and longevity.
Implementation Method 1
an accessory having a body with a thickness between front and rear sides and made from a material that substantially blocks migration of moisture from the rear side to the front side
Implementation Method 2
The accessory further includes a component applied to the body to limit migration of moisture and/or loose matter from a wearer's head to the headwear piece
Implementation Method 3
The body has an array of small openings extending through the body thickness to provide air passage through the thickness of the body
Data Source
AI summary
The combination of a headwear piece having: a) a crown with a wall having an inside surface bounding a space for receiving a part of a wearer's head; and b) a rim/bill projecting from a forward region of the crown; and an accessory having a body with a thickness between front and rear sides and made from a material that substantially blocks migration of moisture therethrough. The accessory has an array of small openings extending through the body thickness to provide for air passage. The accessory is configured to be placed in an operative position against the inside surface of the crown wall at the forward region of the crown to reduce contaminant transmission from a wearer's head to the inside surface of the crown wall at the forward region.