Counterframe for Retractable Sliding Door with Ceiling Rail Integration
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Solution Overview
Problem
Existing counterframes for retractable sliding doors are not suitable for areas with inter-room ceiling guiding systems, as they require masonry intervention for door removal and fail to ensure privacy and aesthetics, limiting the use of ceiling rail systems for patient movement across multiple rooms.
Innovation Solution
A counterframe design with a rail supporting technical traverse that includes a partial rail development with a stop for inter-room passage, external side guides for the back trolley, and overdoor cable protectors to maintain aesthetics, allowing the sliding door to cross with the hanging rail system without modifying existing masonry or doors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the door is completely removed to allow free installation of the rail system, then the rail system can be freely fixed to the ceiling and stretch through several rooms, but privacy between rooms cannot be guaranteed and aesthetic continuity is lost
Solution Approach 1:
The sliding door panel is nested within the counterframe structure, allowing the door to be contained within the architectural opening when retracted. The upper traverse and jamb elements form a nested framework that houses the door panel and rail system components, enabling the door to disappear into the wall structure when open while maintaining room closure and privacy when closed.
Solution Approach 2:
The solution moves the door operation from a vertical plane to a horizontal plane by implementing a sliding mechanism within the counterframe. The door panel slides horizontally along the guide rail within the counterframe structure rather than swinging vertically, allowing the door to retract into the wall thickness dimension while maintaining ceiling height and room separation.
2Ease of manufacture
If the upper jamb is removed to allow rail installation, then the rail can be installed on the ceiling, but the door can only partly safeguard the area from sight and sound
Solution Approach 1:
The upper traverse serves multiple functions: it supports the guide rail for door operation, provides structural closure at the top of the counterframe opening, and maintains the aesthetic appearance of a complete doorframe. The jamb elements similarly provide both structural support and acoustic/visual sealing between rooms, eliminating the need to remove upper jamb components.
Solution Approach 2:
The counterframe structure acts as an intermediary element between the ceiling rail system and the door panel. It provides the necessary support and guidance for the rail while maintaining the architectural integrity and privacy protection of the door opening, mediating between the functional requirements of the rail system and the privacy requirements of the room separation.
3Adaptability or versatility
If conventional counterframes are used with ceiling rail systems, then masonry intervention is required for door removal and installation, but this increases construction complexity and cost
Solution Approach 1:
The counterframe is segmented into modular components including the large case, upper traverse, and jamb elements that can be independently manufactured and assembled. This segmentation allows the counterframe to be installed as a complete unit that integrates with ceiling rail systems without requiring complex masonry interventions, as the modular components can be fitted to standard openings.
Solution Approach 2:
The counterframe design incorporates dynamic elements that allow adaptation to different installation scenarios. The upper traverse and jamb elements are designed to accommodate various rail system configurations and ceiling conditions, providing flexibility in installation without requiring permanent masonry modifications or custom fabrication for each specific application.
Data Source
Figure 1~2(b)
AI summary
Counterframe for retractable sliding door, with rail supporting technical traverse in rooms provided with inter-room ceiling guiding systems to move disabled persons, of the type for plaster or plasterboard, in which: (a) The upper traverse supports the rail that has a partial development with respect to the width of the doorway; wherein said rail is provided with a stop in such a way as to end in correspondence of the crossing of the hanging rail of the guiding inter- room system; (b) The back trolley, with a first part inserted in the profile of the guide rail, the second part of the type suitable to rest with the wheels in correspondence of external side guides of the rail, which face the upper edge of the door panel; (c) Said traverse being suitable to support a portion of overdoor profile that ensures the aesthetic continuity of said upper traverse.