Waist Belt Inversion Aligns Squeezing Force
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Solution Overview
Problem
Conventional waist belts with double-tightening structures suffer from undesirably wide end portions at the waist center, leading to inefficient squeezing and twisting forces due to diagonal pulling directions, which hinder effective utilization of tightening forces and comfort.
Innovation Solution
A waist belt design featuring nonstretchable belts arrayed in a single line with fold rings and hook-and-loop fasteners, allowing for efficient connection and alignment of tightening belts to minimize interference and align squeezing forces with the belt's winding direction, preventing twisting and allowing for a narrower waist fit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If the waist belt has a double-tightening structure with left inner tightening belt and left outer tightening belt, then the waist belt is capable of squeezing tight around the waist of a user, but the squeezing direction diagonally crosses the direction in which the left body belt is wound around the waist, which prohibits full utilization of the squeezing force and causes twisting
Solution Approach 1:
The patent inverts the conventional double-tightening structure by changing the attachment configuration. Instead of having the left outer tightening belt pull in a direction that diagonally crosses the body belt winding direction, the belt is configured to pull in a direction that aligns with the winding direction, thereby eliminating the twisting effect while maintaining the tightening function.
2Ease of manufacture
If the right end portion of the left body belt and the left end portion of the right body belt are made wide to avoid interference between tightening belts, then the tightening belts can be properly positioned, but the waist belt cannot squeeze around a narrow range of the waist
Solution Approach 1:
The patent resolves the spatial conflict by reconfiguring the attachment points and routing paths in different spatial dimensions. The left inner tightening belt is attached to the right end portion of the left body belt and routed through the left fold ring, while the left outer tightening belt is attached to the outer surface and routed through the left connecting ring. This multi-dimensional arrangement allows proper positioning without requiring excessive width at the end portions.
Data Source
AI summary
Provided is a waist belt in which: a left inner tightening belt, with a right end portion thereof attached to the right end portion of the left body belt, is passed through the left fold ring and folded back leftward, and a left connecting ring is provided at a left end portion thereof that has passed through the right fold ring; a right inner tightening belt, with a left end portion thereof attached to the left end portion of the right body belt, is passed through the right fold ring and folded back rightward, and a right connecting ring is provided at a right end portion thereof.