Sliding Door Cover Panel Tool-Free Attachment Mechanism
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Solution Overview
Problem
Existing sliding door arrangements with cover panels lack a secure and tool-free attachment mechanism that ensures a visually appealing and durable closure of the running rail and sliding sash, particularly in terms of securely fixing the locking element to the cover panel.
Innovation Solution
A cover panel with holding grooves and undercut receiving webs that engage with C-shaped clamping sections and snap-in elements, featuring a flexible spring bar for secure attachment and adjustable locking force, along with screw channels for additional fastening and a receiving channel for a brush strip to reduce dust and abrasion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If a cover panel is provided to cover the running rail and sliding sash end area, then visual appeal and protection against dirt are improved, but secure and tool-free attachment is lacking
Solution Approach 1:
The attachment system is divided into separate functional components: holding grooves for positioning, undercut receiving webs for lateral retention, and snap-in elements for secure fixation. This segmentation allows each element to perform its specific function while collectively achieving tool-free assembly
Solution Approach 2:
The holding grooves and receiving webs are pre-formed in the cover panel during manufacturing, creating ready-to-eng age features that guide and secure the cover panel to the running rail without requiring tools during installation
2Strength
If C-shaped clamping sections are used to fix the locking element, then secure fixation is achieved, but the locking element may detach under load
Solution Approach 1:
The C-shaped clamping sections are pre-formed integrally with the locking element base body, creating permanent lateral retention features that prevent detachment while maintaining secure fixation strength
Solution Approach 2:
The clamping sections are strategically positioned at the ends of the locking element legs, providing localized reinforcement exactly where attachment to the cover panel is needed, without adding unnecessary material elsewhere
3Force
If multiple locking elements are arranged on the cover panel, then holding force can be adjusted, but assembly complexity increases
Solution Approach 1:
The design allows for one or more locking elements to be used depending on the specific application requirements. The undercut receiving webs are prepared to accommodate multiple locking elements if needed, but the system works effectively with a single locking element in many cases, avoiding unnecessary 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
Enables tool-free, detachable, and secure attachment of the cover panel to the running rail, providing a visually appealing finish while effectively sealing against dust and abrasion, with adjustable holding force to accommodate various tolerances and strengths.
Implementation Method 1
Each latching element has a flexible spring bar which has a thickened portion which latches into the lower retaining groove of the running rail when the cover panel is attached
Data Source
Figure 1~2
Figure 3~4
Figure 5~7
AI summary
The arrangement (1) has a sliding rail (2) that is fixed at a building component by a fastening element (3). A sliding wing (5) is movably guided in the sliding rail at a carriage. A cover plate (7) covers a region of the rail. A holding bar is engaged in a holding groove (9) or a supporting profile of the rail, at the cover plate. A retaining bar is arranged at the cover plate for retaining a locking element, which comprises a spring bar for engagement into the holding groove of the rail or the supporting profile. An independent claim is also included for a method for arranging a cover plate of a sliding door arrangement.