Adjustable Elevator Door Coupling Lever
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Solution Overview
Problem
Modernization of elevator installations often requires different constructions of cage-door/shaft-door couplings, leading to increased production and assembly efforts, as existing solutions cannot easily adapt to varying dimensions and movement sequences of components.
Innovation Solution
A cage-door/shaft-door coupling design featuring pivot levers with settable fixing means, allowing for adjustable spacing between joint points and axes of rotation, enabling the same coupling to be used with different coupling devices by varying the length of the pivot levers and entrainer runner positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If different constructions of cage-door/shaft-door couplings are produced for different elevator installations, then adaptability to varying dimensions and movement sequences is improved, but production and assembly efforts increase
Solution Approach 1:
The pivot lever is designed with a setting element that can be positioned at multiple locations along the base member, allowing a single universal coupling construction to adapt to different spacing requirements between the entrainer runner and the pivot axis. This enables one coupling design to serve multiple installation scenarios without requiring different constructions, thereby improving productivity while maintaining adaptability.
Solution Approach 2:
The coupling construction incorporates adjustable parameters through the setting element that can be repositioned along the base member. This dynamic adjustability allows the same physical component to adapt to varying dimensions and movement sequences in different elevator installations, eliminating the need to produce multiple fixed constructions and reducing both production and assembly efforts.
2Productivity
If a single construction of cage-door/shaft-door coupling is used for all installations, then production and assembly efforts are reduced, but adaptability to different coupling devices is limited
Solution Approach 1:
The invention changes the geometric parameter of the pivot lever by allowing the setting element to be positioned at different locations along the base member. This parameter adjustment modifies the spacing between the entrainer runner mounting point and the pivot axis, enabling a single construction to accommodate different coupling devices with varying dimensional requirements while maintaining production efficiency.
3Manufacturing precision
If the spacing between the entrainer runner and the pivot axis is fixed, then manufacturing precision is improved, but adaptability to different installations is reduced
Solution Approach 1:
The pivot lever is segmented into a base member and a separate setting element that can be independently positioned. This segmentation allows the spacing between the entrainer runner and pivot axis to be adjusted by repositioning the setting element along the base member, maintaining manufacturing precision for each position while providing adaptability to different installation requirements.
Data Source
AI summary
A cage-door/shaft-door coupling of an elevator installation includes at least one pivot lever pivotably mounted at an axis of rotation associated therewith, wherein the pivot lever has a joint point and wherein the cage-door/shaft-door coupling further includes a first entrainer runner, which is mounted at the joint point, wherein the pivot lever includes a base member and a setting element fastened to the base member by way of a settable fixing means and wherein the settable fixing means enables a change in the spacing between the joint point and the associated axis of rotation.