Tilting Safety Railing Post Lock With Groove and Lever Release
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Solution Overview
Problem
Existing tilting safety railings in vehicles are complex to operate and typically require more than one operator to execute the tilting operation.
Innovation Solution
An arrangement for attaching a falling post to a base structure, featuring a stand with attachment elements, a pivotally attached post, lateral grooves, and projections that lock the post in standing position, along with a lever mechanism for easy operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a tilting safety railing is designed to be simple and easy to operate, then the operation complexity is reduced, but the locking mechanism may become less reliable
Solution Approach 1:
The projection automatically engages with the groove to lock the post in the standing position without requiring manual intervention. The guidance surface automatically guides the projection into the groove during the tilting operation, making the system self-locking and self-servicing.
Solution Approach 2:
The guidance surface acts as an intermediary element that mediates between the projection and the groove. It ensures reliable locking by automatically guiding the projection into the groove, while keeping the overall structure simple and easy to operate.
2Ease of operation
If the guidance surface is designed to automatically guide the projection into the groove, then the ease of operation is improved, but the device complexity increases
Solution Approach 1:
The guidance surface is integrated into the existing structure and automatically performs the guidance function without requiring separate control mechanisms. The geometry of the guidance surface itself provides the automatic guidance, eliminating the need for additional complex control systems.
Solution Approach 2:
The guidance surface is merged with the stand structure, combining the support function and the guidance function into a single integrated component. This reduces device complexity by eliminating separate guidance mechanisms while maintaining automatic guidance capability.
3Ease of operation
If the lever is designed to extend past the guidance surface to push the projection, then the ease of operation is improved, but the device complexity increases
Solution Approach 1:
The lever serves multiple functions: it acts as a handle for manual operation, a lever arm for amplifying force, and a positioning element that extends past the guidance surface to push the projection. This multi-functionality reduces the need for separate components, thereby reducing overall device complexity while improving ease of operation.
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 simplifies the operation of safety railings, allowing them to be easily tilted between standing and recumbent positions by a single operator, enhancing usability and safety.
Implementation Method 1
the exterior of the stand comprises a guidance surface ending to the at least one groove, and arranged to lift the at least one projection and guide said projection to move in the at least one groove
Implementation Method 2
the at least one projection arranged to move on the guidance surface is adapted to push the first end of the lever and rotate the lever in first direction therewith
Implementation Method 3
the lever being activated to rotate in a second direction opposite to the first direction, the first end of the lever is adapted to lift the at least one projection away from the at least one groove
Data Source
AI summary
An arrangement for attaching a falling post on a base structure, the post being rotatably movable between a standing and a recumbent position. The arrangement includes a stand, wherein the post is attached pivotally to the stand by a pin. The stand includes at least one groove arranged laterally in respect to the post, and the post has at least one projection extending in a lateral direction from the post. The at least one groove is arranged with respect to the at least one projection such that when the stand is in the standing position, the at least one projection lies in the at least one groove, and thereby locks the post in the standing position. The at least one projection is attached to the post such that it may move with respect to the stand in a longitudinal direction of the post.