Eccentric Cargo Support Locking Mechanism with Return Spring
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Solution Overview
Problem
Existing cargo support locking mechanisms lack an idle position, posing safety risks and requiring excessive manual effort for adjustment and securing, as they either fall or require manual clamping, leading to potential injury and inefficiency.
Innovation Solution
A cargo support with a resiliently actuatable handle and eccentric locking mechanism, utilizing a spring to maintain the handle in a raised position and ensure the telescopic upright remains locked against the ceiling, reducing manual effort and preventing the support from falling, through a combination of over-center locking and return spring functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional locking mechanism is used without resilient actuation, then the structure is simpler, but the handle cannot be held in an idle position and may fall down causing injury
Solution Approach 1:
The spring mechanism automatically returns the handle to the idle position after actuation, eliminating the need for manual intervention to reset the handle and preventing it from falling down causing injury
Solution Approach 2:
The spring is pre-loaded to store energy that automatically actuates the handle back to the idle position, preparing the system in advance to prevent the harmful effect of handle collapse
2Stability of the object's composition
If manual clamping is required to keep the support upright, then the support can remain stable, but the number of working moments increases and manual effort is excessive
Solution Approach 1:
The eccentric locking mechanism automatically maintains the support in an upright position through its geometric locking action, eliminating the need for continuous manual clamping or intervention to maintain stability
Solution Approach 2:
The eccentric mechanism is designed to automatically engage and lock the support in the upright position before use, preparing the system in advance so no manual clamping is needed during operation
3Ease of manufacture
If the handle is freely movable without resilient actuation, then the device is easier to manufacture, but the risk of injury to persons handling the support increases
Solution Approach 1:
The spring automatically returns the handle to the safe idle position after use, preventing it from remaining in a dangerous turned-up position where it could fall and injure persons handling the support
Solution Approach 2:
The resilient actuation applies a preliminary counteracting force to prevent the handle from falling into a harmful position, automatically counteracting the gravitational tendency of the handle to collapse
4Device complexity
If the support lacks an idle position capability, then the locking mechanism is simpler, but the support falls over and no initial support is obtained
Solution Approach 1:
The eccentric locking mechanism is designed to automatically engage and lock the support in the upright position before use, preparing the system in advance so the support stands stable without requiring additional complexity
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
The solution enables the cargo support to stand securely without manual clamping, reducing the number of working moments by 50% and minimizing manual power required, while ensuring the support remains upright and ready for use with reduced risk of injury.
Implementation Method 1
A spring 8 is in that connection arranged to be received internally hidden by said handle 6... This spring 8 is preferably formed of a screw spring... the handle 6 is resiliently actuatable to always be brought toward the locking position I thereof
Implementation Method 2
which via a link connection 7 is coupled together to said movable telescope part 5 by eccentric locking, so-called over-centre locking
Data Source
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AI summary
The invention concerns a cargo support (4) having return spring- loaded locking mechanism (1) having eccentric locking which provides quick and easy cargo securing and reduces the number of working moments and burdening working moments. The moments of securing cargo becomes easier since the dead load of the support is lower and the clamping torque is only 100 N and that the number of clampings is reduced by at least half since it is not needed to carry out a clamping moment when it is not used. Thanks to the eccentric locking having a return spring, a smaller pressure is provided, which makes that the support is standing by itself without falling. When the support then should be used, it is moved toward the cargo and then the locking moments are carried out.