Bidirectional Latch Mechanism for Multi-Directional Cargo Restraint
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Solution Overview
Problem
Existing cargo securing systems in vehicles require multiple latches and complex arrangements to manage cargo movement in multiple directions, leading to slow engagement and disengagement, limited cargo capacity, and reduced flexibility.
Innovation Solution
A bidirectional latching device with a latch catch assembly and latch head that allows for securing cargo in multiple directions using a single latch, featuring a first and second pawl arm with locking slots and cargo retention flanges to restrict movement, and a base that supports independent rotation of hinges for rapid engagement and disengagement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple latches and complex arrangements are used to secure cargo in multiple directions, then cargo securement reliability is improved, but device complexity increases and operation speed decreases
Solution Approach 1:
The patent combines multiple latching functions into a single bidirectional latch device that can secure cargo in multiple directions simultaneously. The latch head with its T-shaped configuration integrates what would traditionally require multiple separate latches, reducing device complexity while maintaining securement reliability across forward-aft and lateral directions.
Solution Approach 2:
The bidirectional latch device performs multiple securement functions through a single device. The latch head can engage with cargo in both lateral and longitudinal directions, and the pawl mechanism provides both locking and release functions, making the device universal for multi-directional cargo restraint without requiring multiple specialized latches.
2Reliability
If multiple latches are used to address multiple directions of movement, then cargo securement in multiple directions is improved, but operation speed decreases
Solution Approach 1:
By merging multiple latching operations into a single bidirectional device with a common release mechanism, the patent enables simultaneous engagement and disengagement of multi-directional restraints. The handle-operated release mechanism can disengage both lateral and longitudinal locking features in one action, dramatically improving loading and unloading productivity compared to manual operation of multiple separate latches.
Solution Approach 2:
The spring-loaded pawl mechanism automatically engages with the latch head's locking features when the handle is released, providing self-locking without requiring manual intervention for each direction. This automatic engagement maintains high productivity while ensuring reliable multi-directional securement.
3Productivity
If a single latch is used to secure cargo in multiple directions, then device complexity is reduced and operation speed is improved, but cargo securement reliability may worsen
Solution Approach 1:
The latch head is segmented into distinct locking features for different directions (lateral and longitudinal locking surfaces), each engaged by the pawl mechanism independently. This segmentation within a unified device allows reliable multi-directional securement while maintaining simple operation, as each directional feature is clearly defined and independently engaged by the same actuation mechanism.
Data Source
AI summary
A bidirectional latching device for securing a cargo in a vehicle may have a latch catch assembly and a latch head. The latch catch assembly may selectably engage with the latch head. When engaged with the latch head, the latch catch assembly may lock the latch head in position to resist movement and the latch head may secure the cargo in the vehicle. When disengaged from the latch head, the latch catch assembly may release the latch head and the latch head may move to a stowed position. The latch catch assembly may lock the latch head to resist movement in one or more directions of movement. The latch head may be shaped to secure the cargo in the vehicle in at least two directions. Thus, cargo may be secured more efficiently by requiring a reduced number of latch devices because the disclosed latch device is bidirectional.