Guide device and door system
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Solution Overview
Problem
Existing guiding devices for public transport vehicle doors require complex and time-consuming ball replacement processes, and have significant weight and space requirements due to their design.
Innovation Solution
A guiding device with a detachable cover plate and carrier system that allows for easy ball replacement and reduced weight and space usage, featuring a guide channel and cover plate connected to the slider, enabling flexible maintenance and assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the guiding device uses a fixed carrier design spanning the entire slider length, then the structural stability is improved, but the weight and construction space increase significantly
Solution Approach 1:
The carrier is divided into a first carrier section and a second carrier section that can be independently mounted on different portions of the slider. This segmentation allows the carrier structure to span only the necessary operational area rather than the entire slider length, reducing overall weight and construction space while maintaining structural stability in the critical bearing regions.
2Reliability
If the ball bearing system is sealed with a fixed cover, then the reliability is improved, but the ease of repair deteriorates due to complex ball replacement procedures
Solution Approach 1:
The cover is segmented into a first cover section and a second cover section that can be independently removed. The first cover section can be detached to provide access to the ball bearing system for ball replacement, while the second cover section remains in place to maintain structural integrity and protection of other components. This allows maintenance access without requiring complete disassembly.
Solution Approach 2:
The cover design transitions from a static, fixed structure to a dynamic, selectively removable structure. The cover sections can be moved between a closed position for operational reliability and an open position for maintenance access, allowing the system to adapt between these two states as needed.
3Force
If the carrier spans the entire slider length, then the load distribution is improved, but the construction space and weight increase
Solution Approach 1:
The carrier is segmented into multiple sections that can be independently positioned and mounted on specific portions of the slider. This allows the carrier structure to be concentrated in regions where load bearing is critical while minimizing or eliminating carrier structure in regions where loads are minimal, thereby improving load distribution efficiency while reducing overall construction space and weight.
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
Facilitates simple and flexible ball replacement without dismantling, reduces weight and construction space, and enhances maintenance efficiency.
Implementation Method 1
the slider is guided in a linearly movable manner in the guide rail via a recirculating ball bearing, wherein the balls associated with the recirculating ball bearing are lined up in at least one ball row and guided in at least one ball track
Data Source
AI summary
A guide device having, a guide rail and a runner, which engages at least in part in the guide rail and is guided in a linearly movable manner in the guide rail via a recirculating ball bearing. The balls associated with the recirculating ball bearing are arranged in at least one ball row and guided in at least one ball raceway. The balls associated with a ball row are each guided in a ball raceway composed of two partial ball raceways. The first partial ball raceway is formed in the runner and extends along a runner longitudinal axis. The second ball raceway is formed by a guide groove, formed on the runner and extends along the runner longitudinal axis, and a guide rail guide groove, opposite the runner guide groove and formed on the guide rail.