Elevator Cabin Flat Protection Device With Magnetic Mounting
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Solution Overview
Problem
Elevator interior surfaces, particularly in passenger elevators, are susceptible to damage from bulky objects during transportation, leading to scratches and impairment of their appearance, and existing mounting methods for protective mats are cumbersome, require visible installation, or risk deformation of the cabin walls.
Innovation Solution
A fastening system using ferromagnetic components on the elevator car and protective device, utilizing magnetic attraction to securely hold flat protective devices without visible installation, allowing easy mounting and dismounting, and ensuring the surfaces are not compromised.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If hooks are permanently installed in the elevator car to hang protective mats, then protective devices can be mounted, but visible hooks or holes impair the appearance of the elevator interior
Solution Approach 1:
The mounting function is extracted from permanent structural elements (hooks, holes) and transferred to a removable magnetic attachment system. The magnetic components can be installed and removed without leaving permanent visible marks on the elevator interior surfaces.
Solution Approach 2:
Magnetic components are placed only at specific locations where mounting is needed, rather than permanently modifying the entire structure. The magnetic attraction provides sufficient holding force at these localized points without requiring widespread structural changes.
2Ease of operation
If suction cups are attached to cabin walls to hang protective mats, then mounting is possible, but they require very smooth surfaces and quickly become detached
Solution Approach 1:
The suction cup mechanism (relying on vacuum pressure) is replaced with a magnetic attachment system. The magnetic force provides reliable holding power without requiring smooth surfaces or creating vacuum seals, working effectively on various surface types including textured and patterned materials.
3Reliability
If telescopic poles are clamped between opposing cabin walls to suspend protective mats, then mounting is achieved, but high preload forces risk deformation of cabin walls or breaking mirrors
Solution Approach 1:
The mounting function is extracted from a tension-based telescopic pole system and transferred to a magnetic attachment system. This eliminates the need for high preload forces that could deform walls or damage mounted objects like mirrors.
Solution Approach 2:
Magnetic components act as an intermediary mounting mechanism between the protective mat and the elevator interior, providing secure attachment without requiring direct mechanical contact or high clamping forces on the wall structure.
4Ease of operation
If telescopic rods are used for hanging protective devices, then mounting is possible, but the cubicle walls can be scratched
Solution Approach 1:
The mechanical friction-based attachment of telescopic rods is replaced with magnetic attraction. This eliminates the rubbing and grinding movements that cause scratches on interior surfaces while maintaining secure mounting capability.
5Ease of manufacture
If protective mats are not mounted, then the appearance is maintained, but the surfaces are vulnerable to damage from bulky objects
Solution Approach 1:
The mounting system transitions from static permanent installations to dynamic removable magnetic attachments. Protective devices can be mounted when needed for cargo protection and removed when not needed to maintain aesthetic appearance, providing flexible adaptation to different operational requirements.
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 magnetic fastening system effectively prevents damage to elevator surfaces by securely attaching protective devices, maintaining the appearance of the elevator interior while being easy to install and remove, and does not deform the cabin walls.
Implementation Method 1
at least one magnet is arranged on the protective device side in such a way that, in the use position of the planar protective device, it holds the planar protective device in the use position via a magnetic field extending into the first component with ferromagnetic properties arranged on the car side
Implementation Method 2
The elevator car is provided, at least in its upper region, with at least one first component with ferromagnetic properties
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The present invention relates to an elevator car (2) of an elevator system having a planar protective device (8) arranged in front of the inner side (6) of at least one car wall (4) and connected to the elevator car (2) via fastening means, and to a planar protective device (8). In order to be able to install and remove the planar protective device (8) in an elevator car (2) as easily as possible, it is proposed to hold the planar protective device in a use position using one or more magnets (14). The magnetic force generated by the magnets is greater than the dead weight of the planar protective device (8).