Elevator Cabin Skirting Assembly for Tool-Free Secure Mounting
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Solution Overview
Problem
Existing elevator cabin skirting solutions require multiple operators for installation and maintenance, are visible from the customer's perspective, or can be easily removed by passengers, and often necessitate complex production methods.
Innovation Solution
A skirting assembly with a bracket plate and bushings that allows installation from inside the cabin by one person without tools, featuring a pivotally attached end portion to secure the skirting member in place, hidden from view, and requiring no tools for installation or removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the skirting is fixed with screws behind the walls, then the skirting is securely fixed, but two operators are required and a greater gap between the wall and shaft wall is needed
Solution Approach 1:
Instead of accessing the back of the wall to install screws (traditional method), the invention inverts the approach by installing the skirting from the front side of the wall. The L-shaped bracket and bushing system allows the skirting to be secured through the wall thickness without requiring access to the rear side, enabling single-operator installation from inside the elevator cabin.
Solution Approach 2:
The invention introduces an intermediary mechanism consisting of the L-shaped bracket and bushing that mediates between the skirting and the wall. This intermediary system transfers the fixing function from direct screw penetration to a two-component assembly that can be installed from the front, eliminating the need for dual operators and rear wall access.
2Ease of operation
If the skirting is screwed from inside the cabin, then only one operator is needed, but a hole on the skirting is required which causes unexpected appearance
Solution Approach 1:
The invention employs a nested structure where the bushing is inserted into the wall and the L-shaped bracket attaches to it, with the skirting then attaching to the bracket. This nested arrangement allows all fixing components to be concealed within the wall thickness or behind the skirting face, eliminating visible holes or fasteners on the skirting's aesthetic surfaces.
Solution Approach 2:
The invention extracts the fastening function from the visible skirting surface and relocates it to the wall structure itself. The bushing is embedded in the wall, and the bracket connects the skirting to this embedded component, thereby removing the need for visible holes or screw heads on the skirting while maintaining secure attachment.
3Ease of operation
If clip/plug solutions are used, then installation is easy from inside the car, but the skirting can be easily removed by passengers
Solution Approach 1:
The L-shaped bracket features a perpendicular geometry with its first and second arms at right angles to each other. This orthogonal configuration creates a mechanical lock where the skirting attaches to one arm while the other arm engages with the embedded bushing in the wall, forming a rigid, multi-directional connection that resists removal forces from any direction.
Solution Approach 2:
The bushing is预先 embedded or pre-installed in the wall structure before the skirting is attached. This preliminary action creates a hidden anchoring point that the L-shaped bracket connects to, establishing a secure, tool-free attachment system that is both easy to install and difficult to remove without damaging the wall or skirting.
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
An elevator cabin skirting assembly (1), comprising: a cabin wall (2) having an inner surface (2a) and an outer surface (2b), said cabin wall (2) having at least a first cutout (3) and a second cutout (4) both having development through it between the inner surface (2a) and the outer surface (2b); a bracket plate (5) arranged at the outer surface (2b) side, said bracket plate (5) having an end portion (51) comprising a shaped protrusion (52) which develops through said first cutout (3) to protrude from it at the inner surface (2a) side; a skirting member (6) mounted on the cabin wall (2) at the inner surface (2a) side so that at least an end of the shaped protrusion (52) protrudes below the skirting member (6); a first bushing (7) fixed to the skirting member (6) and inserted in the second cutout (4) of the cabin wall (2); said bracket plate (5) being pivotally attached to the outer surface (2b) of the cabin wall (2) so that at least the end portion (51) is movable towards/away with respect to the cabin wall (2) between a first position, in which the end portion (51) is close to the cabin wall (2) and prevents the first bushing (7) from disengaging the second cutout (4), and a second position, in which the end portion (51) is spaced from the cabin wall (2) and allows the first bushing (7) to move.