Lift-and-Slide Door Frame with Removable Profile for External Glazing
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Solution Overview
Problem
Existing lift-and-slide door designs face challenges in achieving adequate stability and ease of assembly, particularly with large glass elements, as they often require internal glazing which complicates handling and increases the risk of glass breakage during assembly, and may not provide sufficient protection against wind and rain.
Innovation Solution
The design incorporates hollow chamber profiles for the frame, allowing for external glazing of the fixed leaf, which improves accessibility and reduces the risk of glass breakage during assembly, while also enhancing wind and rain tightness through a removable profile element part with a hook-shaped clamping element that connects to the first profile element part, and optional gluing for improved suction protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If internal glazing is used for the fixed leaf, then the frame structure is simplified and manufacturing is easier, but accessibility for handling large glass elements is reduced and the risk of glass breakage during assembly increases
Solution Approach 1:
The frame profile is divided into a first profile element part (inner) and a second profile element part (outer) that can be detached from each other. This segmentation allows the glass element to be inserted from the outside by removing the second profile element part, improving accessibility while maintaining a simplified manufacturing process for each individual part.
2Shape
If the frame profiles are made slim with fewer profiles to follow architectural trends, then the aesthetic appearance is improved, but the stability and protection against wind and driving rain are reduced
Solution Approach 1:
The frame profiles use composite construction with hollow chamber profiles combining different materials (e.g., plastic and aluminum) to achieve both slim external dimensions and high structural stability. The hollow chamber design provides rigidity while maintaining a slim appearance.
Solution Approach 2:
The second profile element part is inserted into the first profile element part, creating a nested structure that reinforces the frame stability while maintaining a slim overall profile. This nested construction provides additional structural support without significantly increasing the external dimensions.
3Ease of repair
If the second profile element part is made removable, then the ease of glass replacement is improved, but the connection stability and wind suction protection are worsened
Solution Approach 1:
The second profile element part is pre-equipped with connection elements (such as clamping elements or insertion geometries) that enable simple yet stable connection to the first profile element part. This preliminary preparation allows for easy removal and reconnection while maintaining connection stability during normal use.
Solution Approach 2:
The connection interface between the first and second profile element parts is locally reinforced with specific connection elements (clamping elements, insertion geometries, or adhesive surfaces) that provide high connection stability at the critical joint area while keeping the rest of the removable part simple for easy handling.
4Object-affected harmful factors
If the horizontal width of the removable profile element part corresponds to the width of the first profile element part, then the tightness against driving rain is improved and soiling is reduced, but the complexity of the frame structure increases
Solution Approach 1:
The second profile element part serves multiple functions: it provides the outer aesthetic surface, ensures tightness against driving rain by matching the width of the first profile element part, and facilitates easy removal for glass replacement. This multi-functionality reduces the need for additional separate components.
Solution Approach 2:
The second profile element part combines the functions of an outer cover, a sealing element, and a connection component into a single integrated part, reducing overall structural complexity while achieving multiple objectives including weather tightness and ease of maintenance.
Data Source
AI summary
The invention relates to a lift-and-slide door element (1) comprising a fixed sash (3) which has a glass element (11), wherein the at least one fixed sash (3) is received in a frame (4), wherein the frame (4) has two horizontal profiles (5, 6) and two vertical profiles (7, 8) as well as at least one further vertical profile (9), wherein the frame (4) further has an outside (15) and an inside (14) with respect to its installation position, and wherein the frame (4) is formed by hollow chamber profiles.The glass element (11) of the fixed sash (3) is installed from the outside direction (15), for which purpose the further vertical profile (9) and at least a part of one of the two horizontal profiles (5, 6) of the frame (4) have a first profile element part (34) and a second profile element part (35) removable therefrom, which have a width in the horizontal direction that corresponds at least to a width of the first profile element parts (34) in the same direction.