Rail Door Window Fixing Profile for Fast Pane Replacement
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Solution Overview
Problem
Existing methods for fixing window panes in rail vehicle doors rely on adhesives or rubber profiles, which are time-consuming, require certification, and do not facilitate easy replacement or series production.
Innovation Solution
A fixing device comprising a profile element and fastening device that uses positive and frictional locking to secure the window pane, eliminating the need for adhesives and allowing quick replacement, with components designed for a flush fit and robust assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If adhesive bonding is used to fix the window pane, then the window pane is securely fixed, but the assembly time increases and adhesive certification is required
Solution Approach 1:
The patent replaces the chemical bonding system (adhesive) with a mechanical fastening system consisting of a fastening device with clamping elements that mechanically secure the window pane through the profile element, eliminating the need for adhesive certification and curing time while maintaining secure fixation
Solution Approach 2:
The fixing system is segmented into distinct functional components: a profile element with specific geometric features, a fastening device with clamping elements, and a cover element. This segmentation allows for modular assembly and disassembly, reducing assembly time while maintaining secure fixation
2Reliability
If adhesive bonding is used to fix the window pane, then the window pane is securely fixed, but adhesive certification is required
Solution Approach 1:
The patent replaces the chemical bonding system (adhesive) with a mechanical fastening system consisting of a fastening device with clamping elements that mechanically secure the window pane through the profile element, eliminating the need for adhesive certification while maintaining secure fixation
3Ease of manufacture
If a rubber profile is used to fix the window pane, then the window pane is fixed, but the rubber profile protrudes from the mounting surface
Solution Approach 1:
The profile element is inserted into a receiving profile that is integrated into the door leaf structure. The cover element then covers both the profile element and the fastening device, creating a nested arrangement where all components are housed within the door leaf thickness, resulting in a flush surface without protrusions
4Reliability
If traditional fixing methods are used, then the window pane is fixed, but quick replacement is not enabled
Solution Approach 1:
The fixing system is segmented into distinct functional components: a profile element with specific geometric features, a fastening device with clamping elements, and a cover element. This segmentation allows for modular assembly and disassembly, enabling quick replacement of the window pane directly in the rail vehicle
Solution Approach 2:
The fastening device incorporates clamping elements that can be dynamically adjusted or released to secure or release the window pane. This dynamic fastening mechanism enables the window pane to be quickly secured during assembly and equally quickly released for replacement, maintaining reliable fixation while enabling ease of repair
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 rapid window pane replacement, reduces assembly time, enhances vandalism protection, and facilitates series production without protrusions, while eliminating the need for adhesive certification and curing times.
Implementation Method 1
the profile element is formed from an elastic material, wherein the profile element has a recessed section for gripping an edge region of the window pane
Implementation Method 2
the fastening device is designed to fasten the profile element and the window profile element to each other by positive locking and additionally or alternatively by frictional locking
Data Source
Figure 1~3
Figure 2
AI summary
A fixing device (130) for fixing a window pane (120) of a window in a door leaf for a rail vehicle is presented. The fixing device (130) comprises a profiled element (240), a window profiled element (260) and a fastening apparatus (280). The fastening apparatus (280) is designed to fasten the profiled element (240) and the window profiled element (260) to each other by form-locking connection and/or frictional connection. The profiled element (240) is formed from an elastic material. The profiled element (240) comprises a recess portion (241) for reaching around an edge region of the window pane (120), an attachment portion (245) for the attaching of a part (282) of the fastening apparatus (280) to the profiled element (240) by form-locking connection, a cover portion (247) for covering the fastening apparatus (280), and a connection portion (249) for connecting the cover portion (247) to the window profiled element (260) by form-locking connection. The cover portion (247) is disposed between the attachment portion (245) and the connection portion (249). The window profiled element (260) comprises an arrangement portion (262) for the arranging of an additional part (284, 286) of the fastening apparatus (280) and a receiving portion (264) for receiving the connection portion (249) of the profiled element (240).