Telescopic Elevator Maintenance Tool Gap Bridging
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Solution Overview
Problem
Construction and maintenance of elevators and escalators often require bridging gaps, which existing tools fail to address effectively, leading to inefficiencies and safety concerns.
Innovation Solution
A tool comprising slidable assemblies with rails, support members, and treads that can be configured to bridge gaps in elevators and escalators, featuring extension members with locking mechanisms to securely engage with building structures, providing a stable working surface for personnel and materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing tools are used for construction and maintenance of elevators and escalators, then general maintenance tasks can be performed, but gaps formed during construction and maintenance cannot be effectively bridged, leading to safety concerns and inefficiencies
Solution Approach 1:
The tool is divided into multiple assemblies (first assembly, second assembly, third assembly) that can be connected together in series to bridge gaps of varying lengths. Each assembly contains rails, support members, and treads that function independently but collectively provide the gap-bridging capability, allowing the tool to adapt to different gap sizes while maintaining safety.
Solution Approach 2:
The tool serves multiple functions: it provides a working surface for personnel to stand and work, supports materials and equipment, bridges gaps of various sizes and inclines, and can be configured for different elevator and escalator maintenance scenarios. This multi-functionality resolves the contradiction by making the tool versatile enough to handle gap bridging while maintaining general maintenance capabilities.
2Adaptability or versatility
If a fixed-length tool is used, then the structure is simple, but it cannot accommodate gaps of varying sizes and inclines
Solution Approach 1:
The tool employs a dynamic, telescopic structure where assemblies can be extended or retracted along the rails to accommodate different gap lengths. The locking mechanism allows the tool to be adjusted to match the specific gap dimensions, providing adaptability while maintaining a relatively simple overall structure through modular design.
Solution Approach 2:
The tool features nested assemblies where the second assembly can be positioned within or alongside the first assembly, and the third assembly can be integrated with the second. This nesting arrangement allows multiple functional units to be compact when not in use while enabling extended configurations when needed, balancing adaptability with structural simplicity.
3Adaptability or versatility
If extensions are added to accommodate varying gap lengths, then adaptability improves, but the locking mechanism complexity increases
Solution Approach 1:
The locking mechanism is designed to automatically engage and secure the assemblies at the desired extended position without requiring complex external locking systems. The mechanism uses the tool's own structural elements (rails, support members) to provide the locking function, simplifying the overall locking system while maintaining extension capability.
4Adaptability or versatility
If multiple assemblies are connected to bridge larger gaps, then gap bridging capability improves, but the time to configure and set up the tool increases
Solution Approach 1:
The assemblies are pre-configured with integrated locking mechanisms and connection points that allow for rapid assembly and configuration. The rails, support members, and treads are pre-positioned within each assembly, eliminating the need for complex field adjustments and reducing the time required to configure the tool for different gap sizes.
Data Source
AI summary
A tool for use with elevators and escalators, having two or more slidably connected assemblies, is provided. The assemblies have rails connected together and arranged in a parallel orientation. Support members are connected to the rails and a plurality of treads is attached to the support members. The treads are configured to provide a working surface upon which personnel can stand, sit or kneel and upon which materials can be placed. An extension member is connected to one end of the rails. Each extension member includes a locking member and a stop. Each locking member includes a first arm, a second arm and a third arm. In an open position, the third arm is in contact with the stop and in a closed position, the second arm is in contact with the stop. The assemblies are configured to bridge gaps formed within and around the elevators and escalators.