Deformable Retaining Assembly for Load Securing Straps
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Solution Overview
Problem
Existing load securing apparatus for lorry trailers are difficult to operate, expensive, and unreliable for securing palletized loads.
Innovation Solution
A retaining device with a deformable engaging means that allows movement of a flexible elongate arrangement, providing resistance through a support with apertures and cooperating portions, such as sleeves or beads, to securely position and release the load securing straps.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a retaining device with deformable engaging means is used, then ease of operation is improved, but device complexity increases
Solution Approach 1:
The engaging means changes its physical state from engaged to disengaged by applying force that deforms it, altering its geometric parameters. This allows the strap to transition between retained and released states through simple manual manipulation, improving ease of operation while the deformable nature simplifies the mechanism compared to complex locking systems
Solution Approach 2:
The engaging means is designed to be deformable rather than fixed, allowing it to dynamically change its configuration. The engaging means can deform under applied force to release the strap, then return to its original position to retain the strap, providing automatic operation without complex controls
2Reliability
If a deformable engaging means is used, then reliability is improved, but manufacturing precision requirements increase
Solution Approach 1:
The engaging means utilizes controlled deformation as its operating mechanism, where deliberate changes in geometric parameters (bending, twisting) enable reliable engagement and disengagement. The design accepts normal manufacturing variations by relying on the functional performance of the deformation mechanism rather than precise dimensional tolerances
Solution Approach 2:
The deformable engaging means incorporates built-in compliance that absorbs variations and uncertainties in the system. The elastic or plastic deformation capacity acts as a cushion against manufacturing tolerances and operational variations, ensuring reliable function even with moderate manufacturing precision
3Strength
If resistance portion is provided in aperture, then holding strength is improved, but ease of operation deteriorates
Solution Approach 1:
The resistance portion provides sufficient resistance to hold the strap securely during normal operation, but not so much resistance that it cannot be overcome by deliberate manual force. The design uses partial occlusion or friction that is excessive for normal vibration resistance but manageable for intentional release
Solution Approach 2:
The resistance mechanism is dynamic rather than static - it provides high resistance under normal conditions to prevent accidental release, but can be easily overcome when deliberate force is applied. The engaging means transitions from a high-resistance state to a low-resistance state through deformation, allowing easy operation when needed
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
Enables easy and effective securing and releasing of loads by providing a mechanism that requires sufficient force to overcome resistance, ensuring the straps are securely positioned or released from the trailer.
Implementation Method 1
The engaging means may comprise a resiliently deformable engaging member
Implementation Method 2
The engaging means may comprise a spring. In one embodiment, the engaging means may comprise a cantilever spring
Data Source
Figure 1A~1
Figure 2A~2
Figure 3A~3
AI summary
A retaining assembly (10, 210) comprises a retaining device (16, 116) and a flexible elongate arrangement (12, 14, 212) moveable lengthwise relative to the retaining device. The retaining device comprises a support (28) for supporting the flexible elongate arrangement and engaging means (44, 46, 144, 146) on the support for engaging and retaining the flexible elongate arrangement in a desired position relative to the retaining device.