Actively Controlled Elevator Shaft Door Unlocking Mechanism
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional elevators require labor-intensive and error-prone precise positioning of shaft door and car door components during assembly and maintenance to ensure proper mechanical coupling, leading to operational reliability issues.
Innovation Solution
An actively controlled actuating mechanism with sensors, actuators, and a controller is integrated into the elevator to automatically detect and align with the unlocking mechanism on each shaft door, allowing for precise actuation and independent adaptation to relative positions, eliminating the need for pre-alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional mechanical coupling mechanisms are used for shaft doors and car doors, then the doors can be locked and unlocked, but precise positioning and alignment of components during assembly is required, increasing assembly complexity and time
Solution Approach 1:
The patent replaces the conventional passive mechanical coupling system with an actively controlled actuating mechanism that uses sensors to detect the position of actuating elements on shaft doors and controllers to automatically actuate them. This substitution of active control for passive mechanical alignment eliminates the need for precise manual positioning during assembly, reducing assembly complexity while maintaining operational reliability
Solution Approach 2:
The actuating mechanism performs self-alignment by using sensors to automatically detect the position of shaft door components and adjust accordingly. This self-positioning capability eliminates the need for external intervention to precisely align components during assembly, reducing assembly time and complexity while ensuring reliable operation
2Manufacturing precision
If precise positioning of shaft door components is required during assembly, then proper mechanical coupling is achieved, but assembly and maintenance efforts increase significantly
Solution Approach 1:
The patent introduces a dynamic actuating mechanism that can adapt its position and movement based on real-time sensor feedback about the location of actuating elements on shaft doors. This dynamic adjustment capability allows the system to achieve proper coupling without requiring precise static positioning during assembly, making assembly and maintenance easier while maintaining the necessary positioning precision during operation
Solution Approach 2:
The actuating mechanism changes its operational parameters (position, movement range, actuation force) based on sensor feedback about the actual position of shaft door components. This parameter adaptation allows the system to work with variable positioning tolerances during assembly, reducing the precision requirements for manual installation while maintaining accurate operation
3Ease of manufacture
If variable positioning tolerances are allowed during assembly, then assembly process is simplified, but conventional mechanical coupling mechanisms fail to properly interact
Solution Approach 1:
The patent employs sensors to continuously detect the position of actuating elements on shaft doors and provides feedback to a controller. This feedback mechanism allows the actuating mechanism to adapt to variable positioning tolerances during assembly, compensating for misalignments that would prevent proper interaction in conventional mechanical systems. The system can sense and correct for positioning variations, maintaining proper component interaction without requiring tight assembly tolerances
Data Source
Figure 1
Figure 2~3
AI summary
The invention relates to a lift (1) which comprises a lift shaft (5) having a plurality of horizontally movable landing doors (7) arranged at different heights, a cabin (3) that is movable vertically in the lift shaft (5), and an actuation mechanism (11) that is to be actively controlled. Each landing door (7) has an unlocking mechanism (13), by means of which the landing door can be locked against opening and unlocked. The actuation mechanism (11) has a sensor system (17), an actuator (19), and a controller (21). The sensor system (17) is designed to identify the position of an actuation element (15) on the unlocking element (13). The controller (21) and the actuator (19) are designed to suitably control the actuator (19) under consideration of the position of the actuation element (15) identified by the sensor system (17) so as to actuate the actuation element (15) in the correct position by means of the actuator (19). The actuation mechanism (11) can be designed in particular with a robot arm (25).