Elevator Door Mounting Jig and Crosspiece Alignment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Elevator system installation faces challenges in ensuring precise alignment and safety during construction, leading to increased time and costs due to the need for separate teams and masonry works, as well as the difficulty in blocking off elevator openings to prevent accidents.
Innovation Solution
The system employs an upper crosspiece and lower jig to define door positions and thresholds, allowing for precise centering and adjustment, with fall prevention rails and modular infill panels that can be easily installed and replaced, eliminating the need for masonry works and ensuring safety by blocking off elevator openings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If doors are mounted at floors during construction, then door alignment and centering can be ensured, but masonry works are required afterward which interfere with final finish quality and cause time loss
Solution Approach 1:
The patent applies preliminary action by installing the door assembly complete with threshold and jambs into the elevator runway opening before the masonry works are completed. This allows the door to be positioned and aligned early in the construction process, avoiding the need for time-consuming adjustments and rework during the final finishing phase. The door assembly is designed to be installed in a preliminary state and then finished off with minimal intervention.
2Productivity
If multiple teams of workers work simultaneously at the building site, then installation efficiency can improve, but safety risks increase due to potential accidents in elevator openings
Solution Approach 1:
The patent uses an intermediary safety barrier system that can be installed in the elevator opening to prevent accidental falls while allowing construction work to continue. The barrier acts as a mediator between the open elevator runway and the surrounding construction area, enabling multiple teams to work simultaneously without compromising safety. The barrier can be removed or adjusted as needed during the construction process.
3Object-affected harmful factors
If barrier is installed to block off elevator openings for safety, then safety is improved, but additional time is lost when workers must remove the barrier before door installation
Solution Approach 1:
The patent applies preliminary action by designing the door assembly and threshold to be installed directly into the elevator opening without requiring the removal of a preliminary barrier. The door assembly is designed to be the first permanent installation in the opening, eliminating the need to remove and reinstall barriers. This allows safety barriers to remain in place during construction and be removed only after the door assembly is complete.
4Manufacturing precision
If door assembly includes threshold and jambs, then door mounting precision is improved, but device complexity increases
Solution Approach 1:
The patent merges the door assembly with the threshold and jambs into a single integrated unit that can be installed as one component. This combination simplifies the installation process compared to installing separate threshold and jamb components, while maintaining precise alignment and centering. The integrated design reduces the number of separate parts and assembly steps, thereby reducing overall device complexity while preserving mounting precision.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The method comprises mounting a lower jig (2) adapted to define on one side a floor for laying the flooring and on the opposite side, which faces the runway (VA) as support of the sliding guide of the doors of the elevator system. The method also comprises mounting of an upper crosspiece (1) which can be anchored aligned on said lower jig (2) and fall prevention rails (3) which can be mounted between said lower jig (2) and said upper crosspiece (1). Said mounting carried out before laying the floor of a respective landing (PT) ensures perfect centering of the different openings, and subsequent modular infill of the runway.