Fenestration Head Slide for Sliding-and-Pivoting Panels
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Solution Overview
Problem
There is a need for improved sliding and pivot fenestration units that offer enhanced functionality and versatility in operation.
Innovation Solution
The fenestration system includes a frame with a sliding and pivot panel configuration, utilizing a locking pivot wheel assembly that allows the panel to slide and pivot, and a screen carrier that facilitates the operation of a screen with the panels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a panel is configured to both slide and pivot, then the versatility of operation is improved, but the device complexity increases
Solution Approach 1:
The patent combines the sliding and pivoting functions into a single integrated mechanism. The panel assembly includes a panel, rider, and pivot assembly that work together as one unit, allowing the panel to perform both sliding motion along the track and pivoting motion outwardly from the frame without requiring separate mechanisms for each function.
Solution Approach 2:
The rider assembly serves multiple functions: it guides the panel along the track during sliding operation, supports the pivot assembly, and provides structural connection between the panel and frame. This multi-functional design reduces the number of separate components needed while enabling both sliding and pivoting operations.
2Adaptability or versatility
If a locking mechanism is added to enable pivot mode, then the functional capability is improved, but the device complexity increases
Solution Approach 1:
The locking mechanism is designed to engage and disengage automatically based on the panel's position and motion. When the panel is pushed outwardly beyond the frame plane, the lock automatically engages to secure the panel in pivot mode. When the panel returns to the sliding position, the lock automatically disengages. This self-actuating design eliminates the need for manual operation or complex control systems.
Solution Approach 2:
The locking mechanism transitions from a static component to a dynamic one that responds to the panel's motion. The lock engages and disengages based on the panel's position relative to the frame, adapting its state automatically during operation to enable mode switching without requiring additional control mechanisms.
3Ease of operation
If the panel can pivot outwardly beyond the frame plane, then the ventilation and access capability is improved, but the risk of sliding during pivot operation increases
Solution Approach 1:
The locking mechanism engages in advance before the panel reaches its fully pivoted position, securing the panel to prevent unintended sliding. The lock activates when the panel begins its outward motion, ensuring that once the panel is in pivot mode, it remains stable and cannot slide along the track during the pivoting operation or when subjected to external forces like wind or user interaction.
Data Source
AI summary
A sliding and pivoting fenestration unit, such as a sliding door, with screen. Embodiments of the fenestration unit include a locking and height-adjustable pivot rider, a head slide, a screen carrier, and a method of operation.