Sliding Window Sealing Pad with Cutout for Water Tightness
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Solution Overview
Problem
Existing sealing devices for sliding sashes and lift-slide sashes fail to adequately prevent water and moisture ingress due to gaps between the sash and fixed panels, especially under high wind and rain conditions, leading to compromised water tightness and thermal insulation.
Innovation Solution
A sealing device featuring a thin-walled sealing pad with a cutout on its outer side, operatively connected to a sealing strip, which forms a continuous, form-fitting connection to prevent gaps and ensure tightness, combined with a two-layer material structure for enhanced durability and adaptability, including an adhesive connection to the threshold profile for stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If sealing strips with lip seals are used to seal gaps between sliding sash and fixed panel, then thermal and acoustic insulation is improved, but water tightness against driving rain and high wind loads deteriorates due to capillary action and gaps
Solution Approach 1:
The invention combines the sealing strip with a sealing pad attached to the threshold profile, creating an integrated sealing system. The sealing strip and sealing pad work together to provide both thermal insulation and water tightness, merging two previously separate sealing approaches into a unified solution that addresses both thermal and water sealing requirements simultaneously
Solution Approach 2:
The sealing pad attached to the threshold profile acts as an intermediary element between the sealing strip and the threshold. This intermediary component provides additional protection against water ingress by creating a secondary sealing barrier that prevents water from penetrating through gaps that the sealing strip alone cannot seal
2Ease of manufacture
If the carriage groove is left open or covered only by a cover plate, then ease of operation and manufacturing are improved, but water and moisture ingress into the carriage groove deteriorates
Solution Approach 1:
The sealing pad serves as an intermediary barrier between the external environment and the carriage groove. It provides water and moisture protection without requiring the carriage groove to be fully enclosed, maintaining ease of operation while preventing harmful factor ingress
Solution Approach 2:
The sealing pad functions as a flexible sealing film that conforms to the threshold profile and carriage groove geometry. This thin film structure provides effective water and moisture barrier protection while maintaining the open or minimally covered design of the carriage groove for ease of manufacture and operation
3Object-affected harmful factors
If a thick sealing cushion is used to seal the floor area, then water tightness is improved, but the structure becomes more complex and assembly more difficult
Solution Approach 1:
The sealing system is segmented into two distinct components: a sealing strip attached to the sliding sash and a sealing pad attached to the threshold profile. This segmentation allows each component to be optimized independently and simplifies assembly, as the two components work together to provide water tightness without requiring a single complex thick sealing structure
Solution Approach 2:
The invention merges the sealing strip and sealing pad into a coordinated sealing system where both components contribute to water tightness. This combination provides effective water sealing at floor level while maintaining structural simplicity and ease of assembly, avoiding the complexity of a single thick sealing cushion
Data Source
Figure 1
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AI summary
Device for sealing in the longitudinal direction and in the joint area 9 of a first sash movable on a track 20 as a sliding sash 3 or movable lift-and-slide sash of a window or door 1 and a second sash offset and positioned further towards the outside 23 as a fixed frame 7 of the fixed panel 4 or also movable as a sliding sash, with a sealing pad 16 that seals the joint area 9 or transition of the sashes 3, 4 and with at least one sealing strip 21 arranged on the outside of the first sliding sash 3 in the longitudinal or sliding direction and parallel to the track 20, which is able to seal the sliding sash 3 in the transverse direction, wherein the sealing pad 16 is formed in one piece and has a cutout 18 that extends from an outside 17 to the center of the surface 22 of the sealing pad 16 and, in the installed position, has a sealing strip 21 in the longitudinal or sliding direction of the sliding sash 3.wherein at least one projection 25 of the cutout 18, having an outer surface 17 of the sealing pad 16, comes into contact with at least one edge surface of the sealing strip 21 when the sliding sash 3 is closed and embeds the sealing strip 21 with the material thickness of the sealing pad 16.