Adjustable Elevator Car Repositioning Assembly for Shaft Transfer
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Solution Overview
Problem
Existing elevator systems with multiple cars in shared or multiple shafts lack flexibility and require precise, accurate fitting, limiting variability and necessitating continuous adjustments due to deformations.
Innovation Solution
The elevator system employs a repositioning assembly with guide rollers and an adjusting assembly that allows for rough tolerances during installation, enabling accurate alignment of cars in target shafts through initial adjustment during commissioning, using mechanisms like adjusting screws and conveyor belts to align rail portions with guide rails.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a modular repositioning assembly with frames is used, then the system can transfer cars between shafts, but the frame positioning requires extremely accurate fitting and reduces variability
Solution Approach 1:
The patent applies the dynamics principle by making the repositioning assembly adjustable and adaptable rather than fixed. The frame can be adjusted to accommodate different shaft configurations and tolerances, allowing the system to adapt to varying installation conditions without requiring extremely precise manufacturing tolerances for each specific configuration.
Solution Approach 2:
The patent applies parameter changes by allowing the repositioning assembly to be adjusted within certain parameter ranges. The frame can be positioned and adjusted to compensate for tolerance variations, enabling the system to function correctly across a range of installation conditions rather than requiring exact precision for each specific case.
2Ease of operation
If modular repositioning modules are assembled, then car transfer between shafts is enabled, but continuous adjustments are needed due to deformations
Solution Approach 1:
The patent applies preliminary action by providing initial adjustment capabilities during installation that prevent the need for continuous adjustments during operation. The repositioning assembly can be pre-adjusted to accommodate expected deformations and settling, allowing the system to operate smoothly without requiring frequent maintenance adjustments.
Solution Approach 2:
The patent applies beforehand cushioning by designing the repositioning assembly to accommodate and absorb deformations that occur during operation. The adjustable frame structure can compensate for settling and structural movements, preventing these deformations from requiring continuous adjustments and maintaining stable car transfer operation.
3Manufacturing precision
If precise frame positioning is required, then accurate car alignment is achieved, but installation complexity and time increase
Solution Approach 1:
The patent applies dynamics by providing an adjustable frame structure that can be modified during installation to achieve proper alignment. This dynamic adjustment capability simplifies the installation process by allowing technicians to compensate for minor positioning variations without requiring extremely precise pre-positioning, thereby reducing installation complexity while maintaining alignment accuracy.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables flexible and accurate transfer of multiple cars between shafts with reduced need for continuous alignment adjustments, accommodating deformations and ensuring precise positioning without continuous realignment during routine operation.
Implementation Method 1
The adjusting assembly (7) comprises at least one adjusting device (70), in particular an adjusting screw, for adjustment of the repositioning track (63)
Implementation Method 2
A car guide (172) represents a repositioning carrier which transfers the car along the rail from a first repositioning position in a first shaft into a second repositioning position in a second shaft
Data Source
AI summary
An elevator system includes a first and second elevator shaft, a first vertical guide rail disposed in the first shaft, a second vertical guide rail disposed in the second shaft, a plurality of elevator cars movable within the shafts along the guide rails, and a repositioning assembly configured to transfer the plurality of elevator cars from the first elevator shaft to the second elevator shaft. The repositioning assembly includes a repositioning track extending between the first and second shafts, and a repositioning carrier that is movable along the repositioning track, and configured to transfer the cars from a first repositioning position in the first elevator shaft to a second repositioning position in the second elevator shaft. The elevator system also includes an adjusting assembly configured to adjust the position of at least one of the first or second repositioning positions at least transversely to the repositioning direction.