Integrated Slide Unit for Casement Window Sash Control
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Solution Overview
Problem
Conventional casement window units require complex machining and are expensive due to separate operating and closing units, making them difficult to assemble and operate.
Innovation Solution
A casement window unit with a single control point using an operating slide unit and kinematic pair that allows intuitive opening and closing with a single handle, reducing machining needs and costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate operating unit and closing element are used, then reliable closing and opening control is achieved, but device complexity and machining requirements increase
Solution Approach 1:
The patent combines the operating unit and closing element into a single integrated slide unit. The slide unit incorporates both the operating mechanism for controlling sash movement and the closing element for stable closing, eliminating the need for separate components and reducing overall device complexity while maintaining functional reliability.
Solution Approach 2:
The slide unit is designed to perform multiple functions simultaneously: it acts as both the operating mechanism for sash movement and the closing element for stable closing. This multi-functional design reduces the number of separate components needed and simplifies the overall window unit structure.
2Reliability
If separate operating unit and closing element are used, then controlled opening and stable closing are achieved, but machining complexity and production costs increase
Solution Approach 1:
By merging the operating unit and closing element into a single slide unit, the patent reduces the number of separate machining operations required. The integrated design allows for simpler manufacturing processes and lower production costs while maintaining the stability and reliability of the closing function.
3Ease of operation
If multiple separate components are used, then functional control is achieved, but assembly difficulty increases
Solution Approach 1:
The patent combines multiple separate components (operating unit, closing element, and support structure) into a single integrated slide unit that is pre-assembled. This reduces the complexity of final assembly in the window unit and simplifies installation while maintaining full operational control functionality.
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 simplifies the assembly and operation of the window unit, reducing production costs and making it more user-friendly while maintaining secure closing functionality.
Implementation Method 1
an operating slide unit positioned and movable in the fixed stile to slidably support the closing elements
Implementation Method 2
a kinematic operating pair connecting the slide to a first end of the movement arm
Data Source
AI summary
A casement window unit including a fixed frame (2); a movable sash (3) connected to the fixed frame by a pair of hinged members (4, 5) joined to respective members of the fixed frame and of the sash so as to allow the movable sash to move between a closed position, where the fixed frame and the sash are in contact with each other, and an open position, where at least one stile (3c) of the sash is at a certain distance from the fixed frame towards the outside of the room where the window unit (1) is installed, and vice versa; and a movement arm (7) acting on the sash in such a way that it moves the sash from the closed position to the open position, and vice versa.