Rotating Plate Strap Retention Assembly for Backpacks
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Solution Overview
Problem
Backpack straps tend to slip off the shoulders when wearing a backpack with a molle vest, interfering with access to gear and occupying valuable molle system loops, and existing solutions either require a sternum strap or have a large footprint.
Innovation Solution
A strap retention assembly with an elongated base plate and a rotating plate that pivots to secure accessory straps, featuring a claw mechanism that can open to receive and close to secure straps, minimizing footprint and allowing easy removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a sternum strap is used to prevent backpack straps from slipping off shoulders, then strap positioning stability is improved, but access to gear on the chest is blocked
Solution Approach 1:
The invention divides the strap retention function into separate modular components: a retention device that attaches to the backpack strap and a separate engagement mechanism with teeth that grip the strap. This segmentation allows the retention function to be localized away from the chest area, preventing interference with gear access while maintaining strap stability through the distributed engagement points along the strap length.
Solution Approach 2:
The retention device utilizes the width dimension of the backpack strap by engaging multiple teeth along the strap's width, rather than relying on a single point constraint in the vertical dimension. This dimensional approach distributes the retention force across multiple engagement points, improving stability without requiring a sternum strap that would block chest access.
2Reliability
If a large retention device is used to secure backpack straps, then strap retention reliability is improved, but footprint on molle system is increased
Solution Approach 1:
The retention device features a nested structure where the engagement mechanism with teeth is housed within or integrated with the mounting component that attaches to the molle system. This nesting allows the functional elements to be compactly arranged, providing reliable strap retention through multiple engagement points while minimizing the overall footprint on the molle system loops.
Solution Approach 2:
The retention device incorporates movable or adjustable components that allow the engagement mechanism to adapt to different strap positions and tensions. This dynamic capability enables reliable retention with a compact design, as the mechanism can optimize its engagement geometry within a small footprint rather than requiring a large static structure.
3Stability of the object's composition
If a complex retention mechanism is used to prevent strap slippage, then strap positioning stability is improved, but device complexity is increased
Solution Approach 1:
The retention device employs a self-gripping mechanism where the teeth automatically engage with the backpack strap when the device is attached, without requiring additional adjustment or complex actuation mechanisms. The spring-loaded or elastic nature of the engagement provides automatic retention force, achieving stable strap positioning through a simple, self-regulating design that minimizes overall device complexity.
Data Source
AI summary
An elongated base plate for being secured to a mounting strap. An elongated rotating plate is pivotally carried by the base plate and configured to transition from extending along a plane parallel with the base plate to extending along a plane transverse to the base plate. A claw having a first end portion pivotally carried by the rotating plate. The claw is operable between an open position wherein a second end portion of the claw is spaced apart from the rotating plate, and a closed position wherein the second end portion engages the rotating plate. The base plate is thus mountable to the mounting strap so that the rotating plate is rotatable to position the claw to receive an accessory strap when the claw is in the open position and to secure the accessory strap between the claw and the rotating plate when the claw is in the closed position.