Bag Strap Folding Member for Length Adjustment
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Solution Overview
Problem
Existing bag straps are cumbersome to shorten or lengthen, often resulting in an unsightly and impractical handle when folded, and the conversion between states is complicated and time-consuming.
Innovation Solution
A bag strap system with first and second attachment means, featuring a folding member and connecting elements that allow the strap to be easily converted between unfolded and folded states, with the folding member situated between the attachment means, enabling quick and simple length adjustment by moving the strap through the folding member and coupling/disconnecting the connecting elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If the strap is folded three times to shorten it for handle use, then the strap length is reduced, but the handle becomes thick and unpleasant to grasp, and the appearance is not aesthetic
Solution Approach 1:
The strap is divided into multiple sections with different functions: a first portion that folds through the folding member and a second portion that remains extended. This segmentation allows the handle portion to be shortened while keeping the grip area thin and comfortable, resolving the contradiction between length reduction and graspability.
Solution Approach 2:
The excess strap length is extracted and folded into a separate section that does not interfere with the handle area. The folded portion is positioned away from the grip zone, allowing the handle to remain thin and aesthetically pleasing while still providing the needed length adjustment.
2Length of moving object
If the strap is folded three times to shorten it, then the strap length is reduced, but the conversion process becomes complicated and time-consuming
Solution Approach 1:
The strap system incorporates a dynamic folding mechanism with a folding member that allows the strap to be quickly transitioned between folded and unfolded states. The connecting elements enable easy attachment and detachment, making the conversion process simple and rapid rather than complicated and time-consuming.
3Length of moving object
If loose parts of the strap extend next to the bag when shortened, then the strap can be shortened, but the loose parts become bothersome and can become twisted or attach to other elements
Solution Approach 1:
The first portion of the strap is nested through the folding member, creating a compact folded structure that is contained and organized. This nesting prevents the strap material from becoming loose and interfering with other bag elements, eliminating twisting and unwanted attachment issues.
4Length of moving object
If a velcro closure is used to hold the folded strap, then the strap can be shortened, but it becomes difficult to shorten/lengthen the strap and is not suitable for carrying larger weights
Solution Approach 1:
The connecting elements are designed to automatically engage with each other through simple movement, without requiring velcro or complex fastening mechanisms. The first and second connecting elements self-align and connect when the strap is folded, making adjustment easy while maintaining structural integrity for heavy loads.
Data Source
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AI summary
Bag (1) provided with a strap (2) and provided with first and a second attachment means for attaching the strap (2) to the bag (1) at two respective locations, in which the second attachment means comprise a first folding member (3) which is attached to the bag (1) and through which a portion (2a) of the strap (2) is arranged so as to be movable for folding the strap (2), in which the portion (2a) of the strap (2), which is movable through the first folding member (3), is convertible from an unfolded state, in which this portion (2a) extends mainly between the first folding member (3) and the first attachment means, to a folded state, by moving this portion (2a) through the first folding member (3).