Sliding Door Wing Tilting Mechanism for Weather-Tight Sealing
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Solution Overview
Problem
Windows or doors with sliding wings face challenges in maintaining weather-tightness due to frictional resistance during opening and closing, which complicates maneuvering and can lead to decreased sealing effectiveness, and the lower guide is prone to wear and obstructs accessibility for individuals with mobility issues.
Innovation Solution
A sliding window or door design that eliminates the need for horizontal guides on the ground by using a fixed frame with upper and vertical gaskets, and sliding and tilting means with carriages and wheels that allow the wing to move between closed and open positions without scraping, ensuring easy operation and maintaining weather-tightness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If gaskets are arranged on the lower edge of the wing and on a horizontal rail on the ground to ensure weather-tightness, then sealing effectiveness is improved, but frictional resistance increases making maneuvering difficult
Solution Approach 1:
The invention extracts the horizontal rail from the ground level and relocates it to the upper cross member of the frame. This removes the source of friction (the rail-gasket contact) from the maneuvering path while preserving the weather-tight sealing function through the vertical upright gaskets that remain in contact with the wing during operation.
Solution Approach 2:
The invention transitions from a horizontal sealing arrangement (gasket on lower edge contacting horizontal rail) to a vertical sealing arrangement (gaskets on vertical uprights). This dimensional change eliminates the scraping friction that occurs during horizontal sliding while maintaining the sealing function through vertical contact surfaces.
2Strength
If a lower guide is provided on the ground to support the sliding wing, then structural support is improved, but wear and corrosion increase requiring frequent maintenance
Solution Approach 1:
The invention extracts the guide function from the lower horizontal rail on the ground and relocates it to the upper cross member. This removes the guide from the environment where it is exposed to wear and corrosion (ground level, potential water contact) while maintaining its structural support function through the upper frame position.
Solution Approach 2:
Instead of supporting the sliding wing from below through a lower guide, the invention inverts the support arrangement by providing the guide on the upper cross member. This inversion allows the wing to be supported and guided from above, eliminating exposure to ground-level wear and corrosion factors.
3Ease of operation
If a horizontal rail is placed on the ground to enable sliding movement, then sliding functionality is improved, but accessibility for individuals with mobility issues is obstructed
Solution Approach 1:
The invention extracts the horizontal rail from the ground level where it obstructs accessibility, and relocates it to the upper cross member of the frame. This removes the physical barrier from the threshold area, allowing wheelchairs and other mobility devices to pass freely while the sliding functionality is maintained through the upper guide mechanism.
Data Source
Figure 1A~1B
Figure 2A~2C
Figure 2C'~3B
AI summary
The present invention relates to a window or door (1 ) comprising a fixed frame (2) associated to an opening (A) obtained in a wall, said frame (2) comprising at least an upper cross member (2A), substantially horizontal, and a pair of uprights (2B, 2C), parallel and vertical, sealing means (5) comprising first gaskets (5A) associated to said upper cross member (2A) and to said upright (2B, 2C), and at least a wing (3) associated to sliding and tilting means (7) comprising at least a pair of carriages (70) provided with sliding wheels (71 ) on a sliding guide (25) and tilting thereon in order to move said wing between a closed position, wherein said wing lies on a first plane abutted against said first gaskets (5A) and an open position, wherein said wing lies on a second plane, parallel to said first plane, and it is disconnected from said first gaskets (5A). In particular said sliding and tilting means (7) and said sliding guide (25) are housed in correspondence of said upper cross member (2A), said pair of carriages (70) each comprises a fork (72) rotatably supporting said wheel (71 ) about a first pin (73) arranged substantially transverse with respect to the extension of said guide (25), said tilting fork (72) being rotatably articulated to a support element (74) associated to said wing (3) around a second pin (75) extending along a parallel direction with respect to that of the extension of the guide (25).