Outward Opening Window Perimeter Channel Corner Drive
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Solution Overview
Problem
Outward opening window units with separate operating and closing units are complex and expensive to manufacture, and their operation is cumbersome for users, especially when trying to accommodate multiple closure points without sufficient internal space for drive rods and lacking right-angle accessories for corner motion transmission.
Innovation Solution
A combined operating and closing unit with a perimeter channel and corner drive element that allows multiple closure points around the perimeter without altering the window's basic structure, using a channel with undercuts for operating rods and a corner element to synchronize motion, enabling reduced accessory dimensions and placement near hinge arms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate operating and closing units are used, then the window provides reliable opening and closing control, but the structure becomes complex and expensive to manufacture
Solution Approach 1:
The patent combines the operating unit and closing unit into a single integrated control unit. The operating rod serves dual functions: it transmits the opening/closing motion from the handle and simultaneously activates the closing mechanism through the same rod's movement. This merging eliminates the need for separate control mechanisms, reducing structural complexity while maintaining reliable operation.
2Reliability
If multiple closure points are added to the perimeter, then security is improved, but the internal space for drive rods becomes insufficient
Solution Approach 1:
The patent nests the closing mechanism components within the existing frame structure. The operating rods are routed through channels formed in the frame members, and the closing arms are positioned within the perimeter channel. This nesting allows multiple closure points to be implemented without requiring additional external space, as all components are integrated within the existing frame volume.
Solution Approach 2:
The patent utilizes the perimeter channel as a three-dimensional pathway to route operating rods to multiple closure points around the window perimeter. By using the vertical and horizontal dimensions of the frame members, the system can accommodate rods extending to multiple locations without increasing the overall footprint or requiring excessive internal volume.
3Adaptability or versatility
If right-angle accessories are added for corner motion transmission, then multiple closure points can be positioned, but the accessory dimensions increase and interference with hinge arms occurs
Solution Approach 1:
Instead of adding external right-angle accessories to transmit motion around corners, the patent inverts the approach by forming the angle-changing pathway directly within the frame structure itself. The perimeter channel is shaped to guide the operating rod through corner regions, eliminating the need for separate angular transmission accessories and reducing overall dimension requirements.
Data Source
AI summary
An outward opening window unit includes: a fixed frame, a movable frame connected to the fixed frame through hinge arms; an operating unit located on the fixed frame to move the movable frame; a structure to close the movable frame on the fixed frame; a handle associated with the fixed frame and connected to the operating unit. The fixed frame has a perimeter channel defining a groove provided with two undercuts for the coupling of operating rods connected to the operating unit, a corner element for transmission of motion being positioned at a corner formed by the fixed frame; the corner element is provided with a structure configured to connect two corresponding rods so as to synchronize the movement imparted to them by the operating unit.