Cargo Fitting Eccentric Lever Rail Attachment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing cargo securing devices on vehicles face difficulties in easy installation and removal from rails, and lack effective mechanisms to limit movement along the rail, leading to potential displacement under load.
Innovation Solution
A device featuring a base body with a clamping strip and eccentric lever mechanism, where the clamping strip is movable and can be easily engaged with the rail's edge, using a bolt and screw connection, and optionally enhanced with a spring and damping elements for secure fixation and tolerance compensation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the fitting is integrated with the rail profile or tightly clamped, then the fitting is securely fixed and cannot move freely, but attaching and removing the fitting becomes more difficult
Solution Approach 1:
The fitting transitions from a static integrated design to a dynamic system with movable clamping strips that can be easily adjusted between secured and removable states, resolving the contradiction between secure fixation and ease of operation
Solution Approach 2:
The manual integration or tight clamping mechanism is replaced with an eccentric lever mechanism that uses mechanical advantage to achieve secure clamping with minimal operating force, improving both securing reliability and ease of operation
2Ease of operation
If the fitting is easily removable from the rail, then attachment and removal become simple, but the fitting cannot be securely fixed and may move freely
Solution Approach 1:
The fitting employs movable clamping strips that can transition between a secured clamped state and a removable state, achieving both ease of operation and securing reliability through dynamic adjustment
3Reliability
If the clamping strip is fixed to prevent movement, then the fitting is securely held on the rail, but the fitting cannot be easily removed
Solution Approach 1:
The clamping strip is designed as a movable component rather than a fixed one, allowing it to be easily adjusted or removed when needed while maintaining secure clamping during operation
Solution Approach 2:
The fixed clamping mechanism is replaced with an eccentric lever system that provides secure positioning during operation but allows easy removal when the lever is actuated
4Ease of operation
If the fitting is designed with simple attachment, then ease of operation is improved, but the fitting becomes susceptible to displacement under load
Solution Approach 1:
The simple attachment design is enhanced with an eccentric lever mechanism that provides mechanical advantage, maintaining attachment simplicity while significantly improving load resistance through optimized force distribution
5Ease of operation
If the clamping strip is made movable for easy removal, then ease of operation is improved, but the fitting may twist or tilt under load
Solution Approach 1:
The movable clamping strip design is complemented by an eccentric lever mechanism that provides stabilizing mechanical advantage, preventing twisting or tilting under load while maintaining ease of removal
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 quick and secure attachment and detachment of the fitting to the rail, with enhanced stability against accidental movement due to load-induced twisting or tilting, ensuring effective cargo restraint.
Implementation Method 1
A force storage device, in particular a coil spring, extending between the clamping strip and the base body, ensures that the clamping strip returns to its initial position as soon as the eccentric lever is pivoted in the opposite direction to open the fitting.
Implementation Method 2
In a further embodiment of the invention, a damping element, in particular an elastomer damper, is provided both between the base body and the eccentric lever and between the base body and the clamping strip.
Implementation Method 3
Furthermore, to prevent the fitting from shifting along the rail, the base body may also have an elastic, in particular rubber-like, surface facing the rail or profile.
Data Source
Figure 1~3
Figure 4~5
AI summary
In a device for securing cargo items, in particular goods, on the loading platform of a truck or the like, by means of a fitting (2) on a rail (1), wherein the rail (1) has a profile (3) which can be at least partially gripped by a holder of the fitting (2), the holder shall consist of a profile strip (4) and a clamping strip (6), wherein the clamping strip (6) is movable relative to the profile strip (4).