Adjustable Strap With Independent Shoulder And Waist Segments
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Solution Overview
Problem
Existing adjustable straps for bags and similar containers require frequent adjustments to accommodate different modes of use, such as walking and cycling or motorcycling, leading to inconvenience and discomfort, and often involve complex and costly designs with multiple parts.
Innovation Solution
An adjustable strap with two independent adjustable portions, one for the shoulders and one for the waist, allowing for secure and comfortable fit in various carrying modes without the need for constant re-adjustment, using a minimal number of parts and simple slider mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the strap length is adjusted to fit a walking user, then the strap fits comfortably for walking, but the adjustment for bicycle riding use is lost
Solution Approach 1:
The strap is divided into multiple segments with independent adjustment mechanisms. Each segment can be adjusted separately to accommodate different carrying modes (walking vs. bicycle riding), allowing the user to optimize the strap configuration for each specific use without compromising the other.
Solution Approach 2:
The strap incorporates dynamic adjustment capabilities that allow it to adapt to different lengths and configurations based on the carrying mode. The adjustment mechanisms enable the strap to transform from a configuration suitable for walking to one suitable for bicycle riding, making it versatile across different activities.
2Adaptability or versatility
If the strap length is adjusted frequently to fit different uses, then the strap can adapt to various carrying modes, but the operation becomes inconvenient and time-consuming
Solution Approach 1:
The strap is equipped with pre-configured adjustment mechanisms that allow for quick changes between carrying modes. The adjustment features are designed to be easily accessible and operable, enabling users to switch between walking and bicycle riding configurations without time-consuming operations.
3Reliability
If multiple straps and fastening means are added to achieve stable fit for riding users, then the bag fits tightly at the back, but the design becomes complex and expensive
Solution Approach 1:
The strap integrates multiple functions into a unified design. The same strap structure provides both the primary carrying function and the stabilizing function for bicycle riding, eliminating the need for separate additional straps and fastening mechanisms. This merging of functions reduces part count while maintaining reliability.
Solution Approach 2:
The strap is designed as a multi-functional component that serves different purposes depending on the carrying mode. It provides shoulder support for walking users and diagonal back support for bicycle riders, replacing the need for mode-specific straps and reducing overall system complexity.
Data Source
AI summary
Adjustable strap bags and the like for use during cycling or motorcycling, which includes an elongate flexible member designed to be secured to a bag or the like, wherein said elongate flexible member includes a first portion of adjustable length (I1) which is designed to lie upon the shoulders of a user and a second portion of adjustable length (I2) which is designed to encircle the waist of the user thereby stabilizing the bag and holding it tight thereagainst.