Retractable Door Guide Rail Stopper Adjustment Mechanism
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Solution Overview
Problem
Existing guide devices for retractable sliding doors do not allow easy adjustment of the authorized travel without dismantling the door, as the stopper's position is integral with both opening and closing mechanisms, making independent adjustment difficult.
Innovation Solution
A guide device with a profile that slides relative to the guide rail, allowing the stopper to be connected via the profile, which is fixed using accessible means, enabling adjustment without disassembling the door, featuring a T-shaped guide rail and a U-shaped profile for sliding and fixing, with oblong holes for stud cooperation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the stopper is integral with both opening and closing mechanisms, then the door structure is simplified, but the adjustment of stopper position requires dismantling the door
Solution Approach 1:
The stopper is divided into two independent parts: a first stopper for limiting door opening and a second stopper for limiting door closing. Each stopper can be adjusted independently without affecting the other, allowing position adjustment without dismantling the door while maintaining structural simplicity
Solution Approach 2:
The stoppers are made adjustable along the guide rail rather than being fixed at predetermined positions. This dynamic adjustment capability allows the stoppers to be repositioned at any location on the rail, enabling flexible door travel limits to be set without dismantling the door structure
2Device complexity
If the stopper position is adjusted by moving the entire stopper assembly, then the adjustment mechanism is simple, but both opening and closing stops are affected simultaneously
Solution Approach 1:
The stopper assembly is segmented into two independently adjustable components: a first stopper mounted on a first carriage and a second stopper mounted on a second carriage. Each carriage can be moved independently along the guide rail, allowing the opening stop and closing stop positions to be adjusted separately to achieve desired door travel limits
Solution Approach 2:
Both carriages share the same guide rail and use similar adjustment mechanisms, allowing a single adjustment procedure to control both stoppers. The universal design enables independent positioning of each stopper while using the same adjustment approach for both
Data Source
Figure 1~2
Figure 3a~5b
Figure 6a~7
AI summary
The device (1) has sliding elements (3) sliding opposite to a guiding rail (8) and for being fixed to a door panel. An end stop (5) is connected to the guide rail so as to limit travel of the sliding elements. The rail has portions (A, B) arranged at the level of a reception space and at passage of door in a space to be closed. The end stop is connected to the portion (A) of the rail. A section (2) slides with respect to the rail. The stop is fixed to the section, and the section is fixed to the rail by a fixation unit i.e. locking screw, arranged at the portion (B) of the rail. : An independent claim is also included for a frame for a retractable sliding door, comprising an inner post. USE : Device for being inserted in a frame of a retractable sliding door (claimed) e.g. shower door or furniture door, for guiding the sliding door in a reception space of a house. ADVANTAGE : The end stop permits the adjustment of authorized displacement of the door when a panel is mounted and inserted in a frame, without disassembling the door. The end stop is connected to the rail by the section and is found at the portion of the guiding rail, such that the rail is accessible, thus permitting the fixation unit of the section on the rail to be accessible and permitting the disassembling and reassembling of the section for displacing the section and the stop at desired location. DESCRIPTION OF DRAWINGS : The drawing shows an exploded perspective view of a retractable sliding door guiding device. A, B : Portions 1 : Guiding device 2 : Section 3 : Sliding elements 5 : End stop 8 : Guiding rail.