Leaf Spring Guide Device for Articulated Vehicle Supply Lines
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Solution Overview
Problem
The existing leaf spring devices used for guiding supply lines in articulated vehicle transitions are prone to damage due to excessive stress and deformation during vehicle movements, leading to a reduced service life.
Innovation Solution
The spring device comprises two leaf spring segments connected by a hinge joint with a vertical pivot axis at the zenith, along with a prestressing element such as a leaf spring bridge or tension cable, allowing for greater freedom of movement and maintaining an outwardly arched position to absorb deformation energy and reduce stress.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single leaf spring is used to guide supply lines in articulated vehicle transitions, then the structure is simple, but the spring is subjected to excessive stress and deformation during vehicle movements, leading to reduced service life
Solution Approach 1:
The single leaf spring is divided into two separate leaf spring segments (21, 22) connected by a hinge joint device (30). This segmentation allows each segment to independently absorb deformation energy, reducing the stress on any single component and preventing breakage while maintaining structural simplicity.
2Stability of the object's composition
If the leaf spring is stiffened by a support beam at the zenith to prevent deformation, then structural stability is improved, but the spring is subjected to considerable stress that can cause breakage
Solution Approach 1:
The hinge joint device (30) with vertical pivot axis replaces the rigid support beam connection, allowing the leaf spring segments to dynamically adjust their position during vehicle movements. This dynamic connection maintains structural stability while accommodating deformation through controlled rotation, preventing stress concentration that would lead to breakage.
3Strength
If the leaf spring is made more flexible to absorb deformation, then stress is reduced, but the structural stability and ability to maintain shape is compromised
Solution Approach 1:
By dividing the leaf spring into two segments connected by a hinge joint, the system achieves both flexibility and shape maintenance. Each segment can flex independently to absorb deformation energy, while the hinge joint ensures the segments remain properly positioned, maintaining the overall structural shape during vehicle movements.
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 significantly reduces the load on the spring device at the point of greatest deformation, preventing damage and increasing the service life of the leaf spring by allowing it to absorb deformation energy and maintain its shape during vehicle movements.
Implementation Method 1
the leaf spring segments are connected at their other free ends by at least one hinge joint device with a vertical pivot axis in the installed state
Implementation Method 2
The leaf spring segments are provided with at least one prestressing element to hold them in an outwardly curved position
Data Source
Figure 1
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AI summary
The invention relates to a transition between two articulated vehicle parts (3, 4), wherein a guide device for supply lines running in the roof area of the vehicle parts (3, 4) is provided, wherein the guide device comprises a spring device (20) for guiding the supply lines, wherein line carriers (27a - 27g) are arranged on the spring device (20), wherein the spring device (20) comprises at least two leaf spring segments (21, 22), each of which is attached at one end to the front face of the corresponding vehicle part (3, 4), wherein the leaf spring segments (21, 22) are connected to each other at their other free ends by at least one hinge joint device (30) with a vertical pivot axis.