Window Sash Carrier Brake Structure for Tilt-and-Slide Control
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Solution Overview
Problem
There is a need for improved structures for attaching sashes to fenestration unit frames that enhance the functionality of windows, particularly in terms of sliding and tilting mechanisms, while providing effective seals and smooth operation.
Innovation Solution
A sash carrier system comprising a body with a sash mount and balance springs, featuring a brake mechanism that allows sliding and tilting movements, and includes seal members for weather-resistant performance, enabling smooth operation and enhanced sealing capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a brake mechanism is added to enable controlled sliding and tilting movements, then the ease of operation is improved, but the device complexity increases
Solution Approach 1:
The brake mechanism is integrated into the sash carrier body structure, combining the brake components with the existing carrier framework. This merging approach enables controlled sliding and tilting movements while minimizing additional structural complexity by reusing existing structural elements.
Solution Approach 2:
The brake mechanism serves multiple functions: it controls sliding movements along the frame member, enables tilting movements of the sash, and provides positioning control. This multi-functionality reduces the need for separate control mechanisms, thereby improving ease of operation without proportionally increasing device complexity.
2Reliability
If seal members are added to provide weather-resistant seals, then the reliability is improved, but the device complexity increases
Solution Approach 1:
The seal members are nested within grooves and channels of the sash carrier body structure. This nesting approach integrates the sealing function into the existing structural framework, providing weather-resistant seals while minimizing additional complexity by utilizing the existing geometric features of the carrier body.
3Ease of operation
If balance springs are positioned on the first side of the body to counterbalance sash weight, then the ease of operation is improved, but the device complexity increases
Solution Approach 1:
The balance spring system is segmented into multiple mounting points on the first side of the body, allowing independent adjustment and optimization of counterbalancing forces. This segmentation enables precise weight counterbalancing while keeping the mounting structure modular and manageable, reducing the perceived complexity through systematic organization.
4Adaptability or versatility
If a pivot mount is added to enable sash rotation for tilting, then the adaptability is improved, but the device complexity increases
Solution Approach 1:
The pivot mount is merged with the existing sash carrier body structure, utilizing the same structural framework that supports the sliding mechanism. This integration enables sash rotation for tilting while minimizing additional complexity by sharing structural elements with the existing carrier design.
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 sash carrier system provides efficient sliding motion, effective weather-resistant seals, and adaptable operation across various installation conditions, ensuring low friction and consistent performance.
Implementation Method 1
The balance springs are on the first side of the body
Implementation Method 2
a brake on the first side of the body. The brake is operable between a release position enabling sliding movement of the sash carrier on the frame member, and a brake position inhibiting sliding movement
Data Source
AI summary
Sash carriers mounted to the sides of a sash support the sash in a window frame for sliding movement between sliding closed and sliding open positions. Balance springs on the sash carriers counterbalance the weight of the sash during the sliding movement. The sash can be mounted to the sash carriers for tilting movement between tilt closed and tilt open positions. Brakes on the sash carriers are actuated by the sash when the sash is moved to the tilt open position, and inhibit sliding movement of the sash carriers and sash when the sash is in the tilt open position.