Dual Hook Strap Attachment for Large Anchors and Twist Loads
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Solution Overview
Problem
Current strap tensioning devices, particularly those using S-hooks and J-hooks, face limitations in securely attaching to large diameter anchors and are vulnerable to structural damage from twisting and side loading, while also being cumbersome and inconvenient for frequent use, especially in securing excess webbing.
Innovation Solution
A dual hook attachment device with spring-biased hooks that can securely attach to a sewn end loop on a strap, allowing for easy attachment and detachment from anchors, and a strap organizer that uses an elastomeric cord to manage excess webbing with a compact footprint, enabling secure and efficient bundling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If S-hooks or J-hooks are used to secure strap ends to anchor locations, then the attachment process is simple and quick, but the device is vulnerable to structural damage from twisting and side loading and cannot securely attach to large diameter anchors
Solution Approach 1:
The attachment device is divided into two separate hooks instead of one hook, allowing each hook to independently engage with the anchor. This segmentation distributes the mechanical stress and prevents the structural damage that occurs when a single hook experiences twisting and side loading forces.
Solution Approach 2:
The two hooks are positioned at different orientations relative to the strap, creating a multi-dimensional attachment geometry. This dimensional change allows the hooks to better accommodate large diameter anchors and resist twisting forces by distributing loads across different spatial planes.
2Adaptability or versatility
If additional loops or D-rings are added to straps to enable attachment to large diameter anchors, then the attachment capability to large anchors is improved, but the device complexity and potential for snagging increase
Solution Approach 1:
The dual hook attachment device serves multiple functions: it can attach to both small and large diameter anchors, resist twisting and side loading, and eliminate the need for additional loops or D-rings. This multi-functionality achieves versatility without increasing device complexity.
Solution Approach 2:
The invention combines the functions of multiple components (hooks, loops, D-rings) into a single integrated dual hook device. By merging these elements, the attachment capability for large diameter anchors is achieved while reducing overall structural complexity and eliminating snagging hazards associated with multiple separate components.
3Ease of operation
If open-end hooks are used for strap attachment, then the hooks can be easily inserted and removed from anchors, but the attachment is not secure and may inadvertently disengage
Solution Approach 1:
The attachment device uses two separate hooks instead of one open-end hook. This segmentation allows each hook to independently engage and lock onto the anchor, providing secure attachment while maintaining ease of insertion and removal. The dual-hook configuration prevents inadvertent disengagement that occurs with single open-end hooks.
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 dual hook attachment device provides a secure and reliable attachment to anchors without additional loops or D-rings, while the strap organizer efficiently manages excess webbing, enhancing user convenience and safety by preventing snagging and inadvertent release.
Implementation Method 1
the first and second hook, the first and second hook biased towards each other and interconnected with each other
Implementation Method 2
a strap organizer that uses an elastomeric cord to manage excess webbing with a compact footprint
Data Source
AI summary
An attachment device includes a first hook and a second hook, the first and second hook biased towards each other and interconnected with each other, such the first and second hook have a first position, where a first curved end of the first hook does not touch a second curved end of the second hook and a second position, where the first curved end of the first hook does touch the second curved end of the second hook, wherein the first and second hook pivot between the first and second position. The attachment device further includes a housing, the housing interconnecting the first and second hook and providing a mechanism for a biasing force, the biasing force biasing the first and second hook towards each other. The attachment device further includes a first spring located in the housing, the first spring providing the biasing force. The attachment device further includes a center wall, the center wall located in the housing, the first spring pressing against the housing and the first hook in order to bias the first hook and the second hook.