Magnetic Strap Attachment with Spring Retainer for Carrying Bag
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Solution Overview
Problem
Conventional carrying bags for mobile devices often have hooks at the end portions of the carrying strap that are prone to easy damage and disengagement from the suitcase or package.
Innovation Solution
A carrying bag design featuring a housing with magnetic attachments and a strap device with engaging members and retaining devices, including spring biasing members, to securely attach and detach the strap from the bag, utilizing magnetic members and adjustable structures for stable engagement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional hooks are used at the end portions of the carrying strap, then the strap can be easily attached and detached, but the hooks are easily damaged and disengaged from the suitcase
Solution Approach 1:
The patent replaces the conventional mechanical hook system with a magnetic engagement system. The engaging members contain magnetic members that magnetically attract to and engage with the attachments on the housing, eliminating the need for fragile mechanical hooks while maintaining easy attachment and detachment capabilities
Solution Approach 2:
The patent changes the fundamental engagement parameter from mechanical interlocking (hooks) to magnetic attraction forces. This parameter change allows for both easy attachment/detachment and improved reliability, as the magnetic force provides a secure connection that is less prone to damage and disengagement
2Reliability
If magnetic members are used for engagement, then the strap attaches firmly and stably, but the structure becomes more complex with retaining devices and spring biasing members
Solution Approach 1:
The patent introduces a dynamic retaining device with a spring biasing member that can move between engaged and disengaged states. The spring provides automatic retention force to maintain stable engagement while allowing easy release when needed, creating a dynamic system that adapts to operational requirements
Solution Approach 2:
The patent divides the strap device into distinct functional segments: engaging members with magnetic members for attachment, retaining devices with spring biasing members for securing, and casings for structural support. This segmentation allows each component to perform its specific function efficiently while maintaining overall system manageability
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
The design ensures a secure, stable, and easy attachment/detachment of the carrying strap, preventing damage and disengagement, thereby enhancing the usability and durability of the carrying bag.
Implementation Method 1
The engaging members of the strap device are preferably selected from a magnetic member. The attachments of the housing are selected from a magnetic member.
Data Source
AI summary
A carrying bag includes a housing, two attachments attached to two side portions of the housing, a strap device having two engaging members at end portions for engaging with the attachments of the housing, and two retaining devices slidably attached to the strap device, the retaining devices each include a spring biasing member for contacting and engaging with the engaging member of the strap device, and a retainer extended from the spring biasing member for contacting and engaging with the engaging member of the strap device and the attachment of the housing and for anchoring and retaining the engaging member of the strap device and the attachment of the housing together.