Elevator Car Panel Assembly via Internal Fastening
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Solution Overview
Problem
The existing elevator car compartment assembly process requires operators to work with their body projecting into the elevator shaft, resulting in poor workability due to the need for bolt assembly from outside the compartment.
Innovation Solution
The elevator car compartment design features a car floor with upright edge sections and panels with L-shaped standing end sections and opposing surface sections, allowing for assembly from within the compartment using fastening members that pass through holes and slots to secure the panels to the floor, enabling improved panel assembly workability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If bolts are fastened from outside the car compartment to fix panels to the platform, then the panels can be securely fixed, but the workability of assembly is poor as operators must work with their body projecting into the elevator shaft
Solution Approach 1:
The patent inverts the traditional assembly approach by changing the fastening direction from outside-in to inside-out. Instead of inserting bolts from the elevator shaft side through the platform to fix panels, the fastening members are inserted from inside the car compartment through the standing sections of the car floor to fix the panel lower end sections. This inversion allows operators to perform assembly work from within the safe environment of the car compartment, eliminating the need to project their bodies into the elevator shaft.
2Ease of operation
If the standing end section is designed with a fastening member clearance hole and car floor fastening hole, then panels can be assembled from inside the car compartment, but the panel structure becomes more complex
Solution Approach 1:
The standing end section of the panel is segmented into distinct functional features: an L-shaped configuration with a standing end section portion and an opposing surface section, the latter containing a hole for fastening member access. The car floor standing sections are also segmented with dedicated fastening member clearance holes and car floor fastening holes. This segmentation allows the assembly system to accommodate fastening members from inside the car compartment while distributing structural complexity across multiple specialized components rather than requiring a completely redesigned panel structure.
Data Source
AI summary
In a car compartment of an elevator, a standing end section of a panel is fixed to a standing section of a car floor by a screw member which is fastened by being passed through a ventilation hole and a car floor fastening hole from the car floor side, and therefore an operator can assemble the panel on the car floor from the inside of the car compartment, and the workability of assembling the panel on the car floor is improved.