Vehicle Barrier Net Hook Retention Mechanism
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Solution Overview
Problem
Existing barrier net systems for vehicles are prone to releasing hooks due to vehicle vibrations or cargo shocks, leading to potential injuries from cargo colliding with passengers.
Innovation Solution
A barrier net mounting structure featuring a roof bracket with a hook system that includes a rod with a locking and stopper portion, where the locking portion is secured to the inner surface and the stopper portion is supported by the outer surface of the bracket, preventing the hook from releasing, and a reinforcing member enhances the structural integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If simple hooks are used to mount the barrier net, then the device complexity is reduced and ease of manufacture is improved, but the reliability deteriorates as hooks may release due to vibration or shock
Solution Approach 1:
The hook is divided into multiple functional segments: a rod portion for insertion, a locking portion with locking protrusion for engagement, and a stopper portion for preventing over-travel. This segmentation allows each part to perform its specific function while maintaining overall reliability without excessive complexity.
Solution Approach 2:
The roof bracket serves as an intermediary component between the barrier net hook and the vehicle interior. It provides a dedicated mounting structure with a receiving hole that guides and secures the hook, enabling reliable retention while keeping the hook design relatively simple.
2Reliability
If the locking portion and stopper portion are spaced apart, then the reliability of hook retention is improved, but the device complexity increases due to additional structural requirements
Solution Approach 1:
The locking portion and stopper portion are merged into a single integrated rod structure rather than being separate components. This combining approach maintains the functional benefits of spaced locking and stopping mechanisms while reducing overall device complexity and the number of parts required.
Solution Approach 2:
The rod serves multiple functions simultaneously: it acts as the insertion element, provides the locking portion for securing the barrier net, and includes the stopper portion to prevent over-insertion. This multi-functionality reduces the need for additional separate components, thereby reducing device complexity while maintaining reliability.
3Strength
If a reinforcing member is added to the rod, then the strength and structural integrity are improved, but the device complexity and manufacturing difficulty increase
Solution Approach 1:
The reinforcing member is pre-positioned on the rod during the manufacturing process, and the barrier net is subsequently attached to this pre-reinforced structure. This preliminary reinforcement approach ensures structural integrity while simplifying the final assembly process, as the reinforcing member is already in place rather than requiring complex assembly steps.
4Reliability
If the hook is securely fixed to prevent release, then the reliability is improved, but the ease of operation for installation and removal may worsen
Solution Approach 1:
The hook design incorporates dynamic characteristics that allow it to be easily inserted and locked into place during installation, while the same dynamic features ensure secure retention during vehicle operation. The locking portion engages naturally when inserted, providing secure fixation without requiring complex locking mechanisms that would complicate installation.
Data Source
AI summary
A barrier net mounting structure may include a roof bracket provided on a head lining, and a hook provided on a lateral portion of a barrier net and inserted into the roof bracket, wherein the hook includes a rod having one end provided on the lateral portion of the barrier net, and the other end inserted into the roof bracket, and a locking portion and a stopper portion which may be provided on the other end of the rod in a spaced state therebetween, wherein one end of the locking portion may be locked to an inner surface of the roof bracket, and one end of the stopper portion may be supported by an outer surface of the roof bracket.