Movable Cable Holder for Articulated Vehicle Gangways
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Solution Overview
Problem
Existing gangway systems in articulated vehicles face challenges in accommodating cable movements when there is no room for cables near the vertical longitudinal median plane, requiring specific provisions to allow cables to follow the pivoting movement of one vehicle body relative to the other.
Innovation Solution
A gangway with a cable guide device featuring a fixed support and a cable holder that moves along a tilted path, allowing combined horizontal and vertical motion, and includes a linear bearing for consistent cable motion amplitude, with the cable holder located on one lateral side of the passageway, facilitating cable installation away from the median plane.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If cables are arranged close to the vertical longitudinal median plane of the gangway, then cable movements are minimized during pivoting, but there is no room for cable installation when space is limited
Solution Approach 1:
The cable holder is made movable relative to the fixed support through guiding means, allowing it to dynamically adjust its position along a tilted path. This enables the cable holder to follow cable deformations during gangway pivoting while maintaining accessibility for cable installation from the lateral side, resolving the contradiction between stability and installability
Solution Approach 2:
The cable holder acts as an intermediary element between the fixed support and the cables. It follows cable deformations by moving along the tilted path guided by the guiding means, thereby accommodating cable movements during pivoting while keeping the cable installation point accessible from the lateral side
2Ease of manufacture
If cables are arranged away from the vertical longitudinal median plane, then cable installation is facilitated, but cable movements increase during pivoting
Solution Approach 1:
The cable holder's position is made dynamic through the guiding means that constrain it to move along a tilted path. This allows the cable holder to track cable deformations during pivoting, maintaining cable stability even when installed away from the median plane, thus resolving the contradiction between accessibility and stability
3Adaptability or versatility
If a tilted path is used for cable holder motion, then combined horizontal and vertical motion accommodates cable deformations, but device complexity increases
Solution Approach 1:
The tilted path provides a curved trajectory for the cable holder, combining horizontal and vertical motion components. This curved path naturally accommodates cable deformations during pivoting while the guiding means maintains controlled motion, balancing adaptability with manageable device 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
This solution enables the cable holder to effectively follow cable deformations, ensuring consistent cable motion and accommodating relative movements between vehicle bodies, even when space is limited, by allowing the cable holder to move towards and away from the vertical longitudinal median plane, thus maintaining cable alignment and stability.
Implementation Method 1
the guiding means include a linear bearing for guiding the cable holder along a rectilinear path. The linear guide ensures that the motion of various cables held by the cable holder will have the same amplitude.
Implementation Method 2
the path is tilted with respect to the vertical longitudinal median plane and preferably slopes upward away from the vertical longitudinal median plane of the gangway. Hence the weight of the cable holder and of the cables will tend to move the cable holder towards the vertical longitudinal median plane.
Data Source
Figure 1~2
Figure 3~4
AI summary
A gangway (10) for a public transportation vehicle is provided with cables (38) running from a first vehicle body at a first end (18) of the gangway (10) to a second vehicle body at a second end (20) of the gangway (10). The gangway (10) is provided with a cable guide device (24) comprising a fixed support (26), a cable holder (30) for supporting a section of the cables (38) and guiding means (32) for guiding the cable holder (30) with respect to the fixed support (26), the guiding means (32) allowing the cable holder (30) to move towards and away from a vertical longitudinal median plane (P) of the gangway (10) along a predetermined path.