Rail Brake Control Cable Locking Mechanism for Tight Maintenance Space
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Solution Overview
Problem
Existing rail vehicle braking systems require significant space for manual deactivation and secure connection of control cables, complicating maintenance operations.
Innovation Solution
A control mechanism with a locking/unlocking device that facilitates secure and space-efficient connection of control cables to control rods, allowing easy mounting and dismounting without the need for extensive space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional locking device with rod and lever is used, then the braking system can be locked in activated state, but significant space is required for manual deactivation and cable connection
Solution Approach 1:
The locking device is nested within the brake cylinder body, with the rod housed inside the cylinder and the lever mechanism integrated into the body structure. This eliminates the need for external locking components and reduces the space required for manual deactivation operations.
Solution Approach 2:
The locking and unlocking functions are merged into a single integrated mechanism within the brake cylinder. The rod and lever work together as a unified system that can be actuated by the control cable, combining multiple functions into one compact assembly.
2Reliability
If control cable connection requires extensive space, then secure connection can be achieved, but maintenance operations become complicated
Solution Approach 1:
The connection mechanism is segmented into discrete components (rod, lever, cable attachment point) that can be independently accessed and manipulated. This allows maintenance personnel to work on individual components without requiring access to the entire braking system, simplifying repair operations while maintaining connection security.
3Ease of operation
If traditional unlocking device with external rod is used, then braking system can be deactivated mechanically, but device complexity increases
Solution Approach 1:
The essential deactivation function is extracted from a complex external locking mechanism and implemented through a simple rod-lever-cable system integrated into the brake cylinder. This removes unnecessary complexity while preserving the mechanical deactivation capability.
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
Enables convenient and economical operation by simplifying the connection of control cables to rail system components, reducing space requirements and enhancing maintenance accessibility.
Implementation Method 1
a locking/unlocking device with an elastic member positioned in a recess provided in the plate and having a stable position, the control mechanism being configured so that, when the at least one control cable is mechanically connected to the at least one control rod, the locking/unlocking device is elastically moved away from its stable position
Data Source
AI summary
The invention relates to a control mechanism (105) configured to equip a rail system and including a casing (106) from which a control rod (109) projects, configured to be mechanically and securely connected to a control cable (107) actuatable at a distance from or in proximity to the casing, a plate (115) mechanically connected to the casing and from which the control rod projects, and a locking/unlocking device (135) positioned in a recess (124) provided in the plate and having a stable position, the control mechanism being configured so that, when the control cable is mechanically connected to the control rod, the locking/unlocking device is elastically moved away from its stable position to allow the partial introduction of the control cable in the plate as far as a position in which the control cable is mechanically and securely connected to the control rod.