One-Piece Wedge Housing for Elevator Rope Terminal
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Solution Overview
Problem
Existing elevator rope terminal assemblies with non-metallic fiber-reinforced polymer composite materials face challenges in mechanical attachment without damage, requiring complex geometries and multiple welded elements, leading to high production costs and inefficiencies.
Innovation Solution
A simplified rope terminal assembly using a one-piece hydroformed wedge housing and wedge element with a rope end block for secure locking and integration with condition monitoring systems, reducing complexity and production costs while ensuring structural integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a wedge element and wedge housing with welded joints are used to lock the elevator rope, then the rope terminal assembly achieves reliable mechanical attachment, but the device complexity and production cost increase due to complicated geometry and multiple welded elements
Solution Approach 1:
The patent merges the wedge housing into a single monolithic component without welded joints or separate elements. The wedge housing is formed as one integral piece that directly engages the wedge element to lock the rope, eliminating the need for multiple parts and welding operations while maintaining secure mechanical attachment.
Solution Approach 2:
The simplified wedge housing design serves multiple functions within a single component: it provides structural support, guides the wedge element, secures the rope through the wedge mechanism, and integrates with the rope terminal assembly. This multi-functional design reduces overall device complexity while maintaining reliability.
2Reliability
If a complicated rope terminal wedge housing with several welded elements is used, then the rope locking mechanism is secure, but the manufacturing cost and production time increase significantly
Solution Approach 1:
The wedge housing is manufactured as a single monolithic component without welded joints or separate elements. This integration eliminates the need for multiple welding operations and assembly steps, significantly reducing manufacturing cost and production time while maintaining secure rope locking through the simplified but effective wedge mechanism.
3Strength
If multiple welded elements are used in the wedge housing, then the rope terminal assembly achieves adequate structural strength, but the production efficiency decreases due to complex assembly processes
Solution Approach 1:
The wedge housing is formed as one integral monolithic component without welded joints or separate elements. This integration eliminates the need for multiple welding operations and complex assembly processes, significantly improving production efficiency and throughput while maintaining adequate structural strength through the simplified but optimized monolithic design.
4Ease of manufacture
If a simplified one-piece wedge housing is used, then the manufacturing cost and production efficiency improve, but the structural strength and stiffness may be compromised
Solution Approach 1:
The wedge housing is designed as a monolithic component with optimized geometry that provides adequate structural strength and stiffness. The integrated design allows for optimized material distribution and structural reinforcement at critical locations without requiring welded joints or complex multi-element construction, achieving both manufacturing simplicity and structural adequacy.
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
The solution enables cost-effective, reliable, and efficient manufacturing and installation of elevator rope terminals, enhancing safety and monitoring capabilities while maintaining structural stiffness and strength.
Implementation Method 1
The rope terminal assembly comprises a rope gap through which said elevator rope passes and said wedge element is arranged to wedge between said rope and said wedge housing thus locking said elevator rope in the gap
Data Source
AI summary
The invention relates to a rope terminal assembly of an elevator fixing an elevator rope to a fixing base such as an elevator unit, said elevator being suitable for transporting passengers and/or goods, which assembly comprises, an elevator rope, whose width is larger than its thickness in a rope transverse direction, with at least one end having an end face, one or more wedge elements, a wedge housing, the rope terminal assembly comprising a rope gap through which said elevator rope passes and said wedge element is arranged to wedge between said rope and said wedge housing thus locking said elevator rope in the gap, and said wedge housing is a one piece structure of predetermined size made from a hollow tube, and an elevator.