Universal Elevator Doorway Covering With Adjustable Joint Profiles
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Solution Overview
Problem
The cladding process for elevator landing doorways is time-consuming and costly due to variations in dimensions, requiring custom-made elements for each doorway, which complicates installation and increases labor and material costs.
Innovation Solution
A universal covering system for elevator landing doorways using standardized L-shaped profiles and joint covers that can accommodate variations in thickness up to 5 cm, allowing for identical elements to be used across all doorways, including right and left vertical panels, a lintel, and joint cover profiles to compensate for dimensional differences.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If custom-made cladding elements are manufactured for each doorway to accommodate dimensional variations, then the precision of fit and appearance quality is improved, but the manufacturing complexity, installation time, and cost increase significantly
Solution Approach 1:
The cladding system is divided into modular components: standardized vertical panels, horizontal lintels, and adjustable joint covers. The joint covers are segmented to provide adjustable thickness compensation, allowing the standardized panels to adapt to different doorway dimensions without requiring custom manufacturing for each doorway.
Solution Approach 2:
The joint cover thickness parameter is made variable to compensate for dimensional variations in different doorways. By changing the joint cover thickness parameter rather than the main panel dimensions, the system maintains standardized production while adapting to specific installation requirements.
2Productivity
If standardized cladding elements are used for all doorways, then the manufacturing simplicity and installation speed are improved, but the adaptability to dimensional variations deteriorates
Solution Approach 1:
The joint cover serves multiple functions: it covers the gap between cladding and doorway, provides adjustable thickness compensation for dimensional variations, and maintains a consistent aesthetic appearance. This universal component enables standardized cladding elements to adapt to different doorway dimensions without sacrificing installation speed.
Solution Approach 2:
The joint cover acts as an intermediary element between the standardized cladding panels and the variable doorway openings. It mediates the dimensional mismatch by providing adjustable thickness, allowing the standardized panels to fit different doorway sizes while maintaining installation efficiency.
3Measurement precision
If measurements and custom manufacturing are performed for each doorway, then the measurement precision and fit quality are improved, but the time consumption and labor cost increase
Solution Approach 1:
The joint covers are pre-manufactured in standardized thickness ranges that cover typical dimensional variations. This preliminary preparation eliminates the need for on-site measurement and custom manufacturing, as the adjustable joint covers can accommodate variations within their designed range without additional processing.
Solution Approach 2:
The joint covers are designed as simple, easily replaceable components that can be quickly installed and adjusted on-site. Their simple construction allows for rapid installation without requiring precise custom manufacturing, reducing both time and labor costs while maintaining adequate fit quality.
Data Source
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AI summary
The invention relates to a covering for an elevator landing doorway, the doorway being formed in a wall and comprising a thickness separating a front face and an opposite rear face, the covering comprising a formwork comprising: • A right vertical panel and a left vertical panel each formed of an L-shaped profile intended to cover at least part of the thickness of the wall in which the doorway is formed and part of the front face of said wall, and • A lintel connecting the right vertical panel and the left vertical panel by their upper ends and formed of an L-shaped profile intended to cover at least part of the thickness and part of the front face of the wall, the covering comprises a straight joint cover profile arranged on the thickness of the wall to cover the junction between the right vertical panel and the wall,a left joint cover profile arranged across the thickness of the wall to cover the junction between the left vertical panel and the wall and an upper joint cover profile arranged across the thickness of the wall to cover the junction between the lintel and the wall.,