Key Cover with Opposing Slots for Universal Bow Compatibility
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Solution Overview
Problem
Existing key caps are not universally compatible, as those designed for wider SC1 key bows often cause material stress and tearing when used with narrower key types, while those fitting narrower keys may not provide a secure friction fit for SC1 keys.
Innovation Solution
A key cover design featuring a closed chamber with opposing slots on the outer wall to interlock with lateral bow tips of SC1 keys, allowing for a secure friction fit without excessive pressure, and constructed from materials like PVC, thermoplastic resin, or rubber, enabling compatibility with various key types.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a key cap is designed to accommodate wider SC1 key bows, then it can cover SC1 keys, but the material experiences excessive stretching and stress causing tearing
Solution Approach 1:
The key cap is divided into multiple wall sections (first wall, second wall, outer wall) that can independently accommodate different key bow widths. The outer wall specifically defines slots for SC1 key lateral tips, while the inner chamber geometry can be adjusted for different key types, allowing the structure to segment and adapt to various key dimensions without uniform material stress
Solution Approach 2:
Different regions of the key cap are designed with different geometries to match specific key types. The chamber includes edged segments on inner surfaces that register with key bow edges, and the outer wall has slots positioned for SC1 keys. This localized geometric variation allows each region to optimally fit its corresponding key type without causing material stress
2Force
If a key cap is designed with a smaller size for narrower key bows, then it provides a secure friction fit for KW1 and WR5 keys, but it cannot accommodate wider SC1 key bows
Solution Approach 1:
The key cap is designed as a universal solution that can accommodate multiple key types (SC1, KW1, WR5, Y1) within a single structure. The chamber geometry and outer wall slots are configured to universally fit different key bow widths while maintaining secure friction fit through the edged segments that register with key edges
Solution Approach 2:
The key cap design allows for dynamic adaptation to different key types through its geometric features. The edged segments on the inner chamber surface can register with different key bow edges, and the outer wall slots can accommodate SC1 key lateral tips, enabling the same key cap to dynamically adapt its fit for various key dimensions
3Adaptability or versatility
If a key cap uses a complex internal chamber design with multiple edges to accommodate various key bows, then it increases adaptability, but it results in undesirable bulk and larger width
Solution Approach 1:
The complex internal chamber is segmented into functional zones: a first wall, second wall, and outer wall, each serving specific purposes. The outer wall defines slots for SC1 keys while the inner chamber edges accommodate other key types. This segmentation allows the key cap to maintain a compact overall form while providing complex internal geometry for multi-key compatibility
Solution Approach 2:
Instead of increasing width to accommodate all key types, the design uses vertical and depth dimensions creatively. The outer wall extends between the first and second walls, defining slots that accommodate SC1 key lateral tips in a vertical arrangement. This dimensional approach allows multi-key compatibility without proportionally increasing the key cap's width and bulk
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 key cover provides a secure and durable solution for covering SC1 keys without material stress, while also being adaptable for narrower key types, ensuring a snug fit and preventing unintentional dislodgment.
Implementation Method 1
the key cap covers the outer surface of the bow and retains the bow (for example, by friction fit)
Data Source
AI summary
A cover for a key is disclosed. The cover includes: a first wall; a second wall opposite to the first wall; and an outer wall extending between the first wall and the second wall, the outer wall defining a pair of slots extending therethrough, the slots being positioned opposite to each other on the outer wall, wherein the first wall, the second wall, and the outer wall define a closed chamber for receiving a bow of the key and an opening to the chamber.