Construction Elevator Hoisting Ropes and Rope Suspenders
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Solution Overview
Problem
Existing construction elevator systems require significant time for each jump in height due to the need to transport and reattach heavy equipment, such as hoisting machinery and cable drums, during the construction process.
Innovation Solution
A novel construction elevator arrangement where only the upper pulleys and rope suspenders are moved during jumps, forming a reusable unit that includes the hoisting machinery, ropes, and electric cabinet, allowing these components to remain in place and be reused across multiple building projects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If heavy equipment (hoisting machinery, electric cabinet, cable drums) is transported upwards during each jump, then the construction elevator can reach higher floors, but the time required for each jump increases considerably
Solution Approach 1:
The patent extracts the heavy equipment (hoisting machinery, electric cabinet, cable drums) from the moving components and leaves them stationary at the bottom of the shaft. Only the essential moving parts (car, counterweight, hoisting ropes) are transported upwards during jumps, significantly reducing the mass that needs to be moved and thereby reducing the time required for each jump while still achieving increased hoisting height.
2Adaptability or versatility
If heavy equipment is transported and reattached during each jump, then the construction elevator can adapt to increasing building height, but the complexity of equipment handling increases
Solution Approach 1:
The patent segments the construction elevator system into stationary components (hoisting machinery, electric cabinet, cable drums) and moving components (car, counterweight, hoisting ropes). This segmentation allows the system to adapt to increasing building heights by simply adding more hoisting ropes and adjusting the car position, without requiring complex reattachment procedures for the heavy equipment, thereby reducing equipment handling complexity while maintaining adaptability.
3Reliability
If all heavy equipment is moved during each jump, then the construction elevator can maintain functionality at higher levels, but productivity decreases due to considerable time requirements
Solution Approach 1:
The patent positions the heavy equipment (hoisting machinery, electric cabinet, cable drums) at the bottom of the shaft in advance, where they remain stationary throughout the construction process. This preliminary positioning eliminates the need to move and reattach this equipment during each jump, significantly reducing the time required for each elevation increase and thereby improving construction productivity while maintaining full functionality at higher levels.
Data Source
AI summary
A construction elevator arrangement and a method for producing the same includes a hoisting machinery, an electric cabinet, and cable drums positioned at the bottom of the shaft, an elevator car and a counterweight moving in the shaft, upper pulleys and rope suspenders fixed at an upper end of the lifting height of the construction elevator, and hoisting ropes being fixed to the rope suspenders during the operation of the construction elevator and gliding through the rope suspenders during an upwards jump of the construction elevator in the shaft. The hoisting ropes pass in a 2:1 roping between the car, the upper pulleys, the traction sheave, the counterweight, and the rope suspenders.