Sliding Window Seal With Bellows Resilient Section and Guide Part
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Solution Overview
Problem
Sliding windows and doors face challenges in achieving reliable and permanent sealing without compromising their functionality, especially when the seal must accommodate sliding and lifting movements while preventing thermal bridges and drafts.
Innovation Solution
A sealing element with a resilient section and a sliding part, where the resilient section is designed as a bellows with varying restoring force, and a guide part that can absorb lateral forces, ensuring optimal positioning and low contact pressures, is used. The guide part can be made of materials like EPDM or plastics, and includes lateral seals for enhanced sealing and durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a seal is used for sliding windows to ensure sealing, then sealing performance is improved, but the sliding function is compromised due to increased friction and wear
Solution Approach 1:
The seal is divided into two distinct parts: a resilient sealing part that maintains contact pressure for sealing, and a separate sliding part that reduces friction during movement. This segmentation allows each part to optimize its specific function without compromising the other.
Solution Approach 2:
The sliding part acts as an intermediary between the resilient sealing part and the window frame. It absorbs lateral forces and reduces direct friction between the seal and the frame, enabling smooth sliding while maintaining sealing effectiveness.
2Reliability
If a seal is designed to seal securely in every position, then sealing reliability is improved, but the complexity of the seal structure increases
Solution Approach 1:
The seal incorporates a resilient section that dynamically adapts its shape and contact pressure based on the window's position during sliding or lifting. This dynamic behavior ensures continuous sealing without requiring complex mechanical adjustment mechanisms.
3Adaptability or versatility
If a seal is made resilient to ensure compensating function, then adaptability to movement is improved, but the contact pressure becomes insufficient for adequate tightness
Solution Approach 1:
The seal is segmented into a resilient section that provides compensating function and adaptability, and a separate sliding part that maintains adequate contact pressure. This segmentation resolves the contradiction by allowing each segment to optimize its specific mechanical property.
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
The solution provides effective sealing for sliding windows and doors, minimizing thermal bridges and drafts, while allowing easy sliding and lifting with low operational forces and reduced wear, ensuring a secure and efficient sealing performance.
Implementation Method 1
a resilient section (3) is provided on the holding part (4) of the seal... The resilient section is designed as a bellows
Implementation Method 2
Lateral forces are absorbed by the guide member, lateral forces in this context representing forces from sliding movement of the window member
Data Source
AI summary
The seal (1) has a holding portion (2) which is provided for attaching the seal portion. A resilient portion (3) e.g. bellows is provided on the holding portion. A head portion (4) set facing away from an end of the holding portion, is provided on the resilient portion. A sliding element is provided on the head portion. An independent claim is included for sealing element.