Integrated T-Shaped Elevator Guide Rail for Compact Safety Mounting
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing guide rails for elevators are complex to construct and manufacture, require additional space for safety devices, and face increased strength requirements, leading to inefficiencies in design and installation.
Innovation Solution
A T-shaped guide rail design with integrally formed guiding portions for the elevator car and counterweight, allowing for the integration of safety devices and improved rigidity, manufactured from a single metal sheet, which simplifies construction and reduces space requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional guide rails are used to guide elevator car and counterweight, then the guide rail can support safety devices, but the guide rail becomes complex to construct and manufacture
Solution Approach 1:
The patent merges the guide rail structure with the safety device support function into a single integrated component. The T-shaped guide rail incorporates mounting features for safety devices directly into its structure, eliminating the need for separate support elements and reducing overall system complexity while maintaining safety functionality
Solution Approach 2:
The guide rail is designed to perform multiple functions simultaneously: guiding the elevator car and counterweight through its T-shaped profile, providing structural support, and integrating safety device mounting capabilities. This multi-functionality reduces the number of separate components needed and simplifies the overall guide rail system
2Reliability
If traditional guide rails are used to guide elevator car and counterweight, then the guide rail can support safety devices, but additional space is required for installation
Solution Approach 1:
The safety device mounting features are nested within the T-shaped structure of the guide rail itself. The flange and web of the T-profile provide integrated mounting surfaces that utilize the existing structural geometry, allowing safety devices to be mounted without requiring additional external space or separate support structures
3Reliability
If traditional guide rails are used to guide elevator car and counterweight, then the guide rail can support safety devices, but the strength requirements increase
Solution Approach 1:
The T-shaped guide rail profile provides locally optimized structural properties where the vertical web delivers high bending resistance to meet increased strength requirements from safety device loads, while the horizontal flange provides mounting surfaces. This localized structural optimization allows the guide rail to handle both guidance and safety device support functions with appropriate strength distribution
4Strength
If complex guide rail structures are used, then strength requirements are met, but manufacturing becomes more difficult
Solution Approach 1:
The guide rail design uses standard T-profile dimensions and common metal sheet thicknesses that can be readily manufactured using conventional rolling or bending processes. By selecting appropriate parameters within standard ranges, the guide rail achieves the required strength properties without requiring complex or specialized manufacturing procedures
Data Source
Figure 1
Figure 2
AI summary
The disclosure relates to a guide rail (1) for guiding an elevator car (2) and a counterweight (3) during their up and down movements. The guide rail (1) comprises a first guiding portion (4) for guiding the elevator car (2) and a second guiding portion (5) being integrally formed with the first guiding portion (4) for guiding the counterweight (3). Each guiding portion (4, 5) further forms a base section (6, 7) configured for being connected directly or indirectly to a part of a building (8) and a rail section (9, 10) protruding from the base section (6, 7). Each guiding portion (4, 5) is T-shaped in cross-section. The disclosure also relates to an elevator assembly (20) having an elevator car (2), a counterweight (3) and at least one guide rail (1).