Transport Container Bolt with Hook-Shaped Latching Lug
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Solution Overview
Problem
Existing transport containers face issues with self-loosening during stacking and accidental release of the locking mechanism, which complicates the stacking and visual verification of locked sides, especially when handling bulk goods.
Innovation Solution
A transport container design featuring a bolt with a hook-shaped latching lug that can be pivoted externally, engaging with a locking element to create a self-retaining closure, preventing independent release and allowing easy visual verification of the locked position, even under load, without requiring additional installation space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a locking mechanism is integrated into a side wall with a roller pin that can be transferred into a locking position, then the lid can be fixed to the side wall, but the locking mechanism can release itself after lifting a container previously placed on the lower transport container
Solution Approach 1:
The bolt is designed to automatically engage with the locking element when the side wall is pressed against the container bottom part, eliminating the need for manual intervention to maintain the locked state during stacking operations
Solution Approach 2:
The hook-shaped latching lug with recess is pre-configured to prevent self-loosening by creating a mechanical interlock that resists the forces generated during stacking, counteracting the tendency of the locking mechanism to release
2Reliability
If an L-shaped latch is guided through an opening in the base to engage behind the base, then the side wall can be locked to the container bottom part, but there is a risk of self-loosening in such transport containers
Solution Approach 1:
The hook-shaped latching lug features an asymmetric geometry with a recess that creates a one-way mechanical interlock, allowing engagement in one direction while preventing disengagement in the opposite direction, thus eliminating self-loosening
Solution Approach 2:
The bolt is pre-configured with the hook-shaped latching lug that automatically engages with the locking element before transport shocks can occur, preventing self-loosening in advance
3Ease of operation
If a bolt is pivotable in an axis perpendicular to the plane of the side wall with a gripping element, then simple actuation is achieved, but the closure may not provide sufficient visual verification of locked position
Solution Approach 1:
The bolt is designed with different visible positions that can be easily distinguished, where the extended position indicates locked state and retracted position indicates unlocked state, providing clear visual verification
Data Source
Figure 1~2
Figure 3~6b
Figure 7~10
AI summary
The container (11) has a side wall (14) attached on a container base part (12) and a container upper part (16). A closure (18) is arranged in the side wall, and comprises a latch pivoted in a plane of the side wall. A locking element is fastened at the container base part or the container upper part. The latch is engaged at the container upper part in a closing position. The latch of the closure is operated from an outer side of the side wall and changed from an open position into the closing position.