Vacuum Bag Strap Locking for Adjustable Length Retention
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Solution Overview
Problem
Conventional bag straps lack a mechanism to lock the strap length, making it difficult to achieve and maintain an optimum carrying length during use.
Innovation Solution
A locking structure incorporating a bladder with a chamber and elastic elements, operated by adjusting fluid pressure within the chamber to transition between unlocked and locked states, providing adjustable and secure strap support.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional adjustable straps are used, then the bag can accommodate various carrying heights, but the strap length cannot be locked or fixed at an adjusted position
Solution Approach 1:
The strap system transitions from a static fixed-length state to a dynamic adjustable state through the vacuum-actuated locking mechanism. The bladder expands or contracts based on vacuum pressure, enabling the strap to dynamically adjust and lock at desired positions while maintaining reliability through the vacuum seal.
Solution Approach 2:
The invention employs a vacuum-powered bladder mechanism to achieve strap locking. By applying vacuum pressure to the bladder, the system activates the locking feature to secure the strap at an adjusted length, providing both adaptability and reliability without complex mechanical components.
2Adaptability or versatility
If the bag body is made loose and flexible, then it can accommodate various objects with varied sizes and shapes, but it lacks structural support for carrying
Solution Approach 1:
The bag body dynamically transitions between flexible and rigid states through vacuum activation. When vacuum is applied, the locking structures engage to provide structural support and rigidity for carrying, while maintaining flexibility and adaptability when vacuum is released, allowing accommodation of various objects.
Solution Approach 2:
The physical state of the bag body changes from flexible to rigid through parameter changes induced by vacuum pressure. This allows the same structure to serve dual purposes: accommodating various objects in flexible mode and providing carrying support in rigid mode.
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
Enables the bag to transition from a flexible state for accommodating various objects to a rigid, supportive state for carrying, enhancing user comfort and structural integrity.
Implementation Method 1
a vacuum system configured to define negative pressure within the locking structure to frictionally engage the locking elements with one another to maintain the locking structure in the locked state
Implementation Method 2
at least one elastic element disposed within the interior void
Data Source
AI summary
A locking structure for an article includes a bladder including a first barrier element attached to a second barrier element to define a chamber having an interior void. A locking system includes locking elements that each attach to at least one elastic element. The locking elements each include at least one interface surface. The interior void of the bladder operable between a first pressure to move the locking system to a locked state and a second pressure to move the locking system to an unlocked state.