Lashing Point Bracket With Spring Pivot
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Solution Overview
Problem
Existing lashing points for securing transport goods on ships and trucks face challenges in easy handling, rattling prevention, and maximizing free space between the bracket and the bearing block, while ensuring even force distribution under maximum load.
Innovation Solution
A lashing point design featuring a D-shaped bracket with parallel legs connected via a web that forms the pivot axis, a U-shaped groove with a spring element pressing against the web, and a holding element to secure the spring and web positions, allowing 180° pivoting and even force distribution, thus optimizing the bearing block's thickness and minimizing its protrusion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a pressure means is arranged in a pocket in the middle of the groove to press on the bracket web, then the bracket maintains its position and rattling is prevented, but the bearing block thickness above the web must be increased to dimension accordingly for even force transmission
Solution Approach 1:
A spring element is introduced as an intermediary component between the pressure means and the bracket web. The spring element transmits the pressing force while accommodating variations in bracket position, allowing the bearing block to maintain a reduced, optimized thickness without compromising the bracket's positional stability or force distribution.
2Strength
If the bearing block is made thicker to ensure even force transmission under maximum load, then force distribution is improved, but the bearing block protrudes more from the fastening surface and is more vulnerable to damage
Solution Approach 1:
The spring element allows the system to dynamically adjust the pressing force parameter based on the bracket's position and load conditions. This enables even force distribution under maximum load while maintaining a thinner, more protected bearing block structure, as the spring compensates for thickness reductions through elastic deformation.
3Object-affected harmful factors
If the bearing block height is minimized to improve protection and reduce protrusion, then damage resistance is improved, but the free space between the bracket and bearing block is reduced
Solution Approach 1:
The spring element introduces a new dimensional aspect to the system by utilizing elastic compression along the vertical axis. This allows the bearing block to maintain minimal height for protection while the spring's compression capability provides the necessary free space and movement accommodation for the bracket in the vertical dimension.
4Ease of operation
If a spring element is arranged in a pocket to press against the web, then handling is easier and rattling is prevented, but the device complexity increases with additional components
Solution Approach 1:
The spring element serves multiple functions simultaneously: it acts as a pressure means to hold the bracket in position, provides damping to prevent rattling, and allows for easy handling by maintaining the bracket in an optimal position. By combining these functions into a single component, the overall device complexity is minimized despite the addition of the spring.
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
This design enhances handling ease, prevents rattling, allows for a flatter bearing block for better protection, and ensures secure attachment under load, while minimizing the bearing block's height and maximizing free space, thus improving protection and operational efficiency.
Implementation Method 1
A spring element is arranged in this pocket. This spring element presses with one end in the radial direction against the circumferential side of the web
Data Source
Figure 1a~1b
Figure 2~3
Figure 4
AI summary
The lashing point (1) has a frame (2) pivotably supported at a bearing block (3), where the frame comprises arms (4) that are connected with each other by a bar. The bar is engaged with a U-shaped groove of the bearing block. A spring is arranged in a recess, which opens into inner sides of the groove. An inner surface of the groove is designed as a closed bearing surface for the bar in the middle of the groove over an entire length (L1) of the groove, where the inner surface extends at an angle of 60 degrees.