Hard-Shell Boot Width and Size Adjustment Mechanism
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Solution Overview
Problem
Conventional hard-shell boots lack a simultaneous adjustment mechanism for width and size, requiring separate manual adjustments which are inconvenient.
Innovation Solution
The design incorporates two through holes on the top portion of the outer shell, allowing an inner blocking piece to connect with an outer blocking piece, enabling the flank portions to be stretched and adjusted for width and size to fit the user's foot.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate adjustment structures for length and width are provided in the outer shell, then the boot can be adjusted for different foot sizes, but the adjustment structures must be adjusted separately by hand tool which is inconvenient
Solution Approach 1:
The patent combines the length adjustment mechanism and width adjustment mechanism into a single integrated adjusting piece. The adjusting piece includes a first adjusting component that engages with the first flank portion to adjust width, and a second adjusting component that engages with the second flank portion to adjust length. Both adjustments are controlled through one unified structure rather than separate hand-tool operations.
Solution Approach 2:
The adjusting piece serves multiple functions simultaneously: it acts as both the width adjustment mechanism and the length adjustment mechanism. The single adjusting piece can be operated to achieve both width and length adjustments of the boot, making one component perform multiple adjustment functions that previously required separate structures.
2Adaptability or versatility
If the outer shell structure is made adjustable for width and size, then it can fit different foot dimensions, but the adjustment mechanism increases device complexity
Solution Approach 1:
The patent merges multiple adjustment functions into a single adjusting piece structure. Instead of having separate mechanisms for width and length adjustment, both functions are integrated into one component that interacts with the flank portions through through-holes, reducing the number of independent adjustment structures.
Solution Approach 2:
The adjusting piece is designed as a multi-functional component that simultaneously provides both width adjustment capability and length adjustment capability. This universal component replaces what would traditionally require multiple separate adjustment devices, thereby reducing overall structural complexity.
Data Source
AI summary
A hard-shell boot comprises a boot liner and an outer shell having an accommodation space for accommodating and positioning the boot liner. Two sides of a top portion of the outer shell respectively have a first flank portion vertically penetrated by a first-through-hole and a second flank portion vertically penetrated by a second-through-hole. A connecting member comprises an inner-blocking-piece located in an inner side of the top portion of the outer shell and an outer-blocking-piece. One end and the other end of the inner-blocking-piece respectively have a first-engaging-portion connected to one end of the outer-blocking-piece by passing upward through the first-through-hole and a second-engaging-portion connected to the other end of the outer-blocking-piece by passing upward through the second-through-hole. Thus, the width and size of the hard-shell boot can be adjusted simultaneously to facilitate the use of users with different foot widths and sizes.