Adhesive Door Stopper With Spring-Loaded Movable Head
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Solution Overview
Problem
Conventional door stoppers require manual removal or installation, can damage surfaces, and are not user-friendly, especially for individuals with mobility issues, leading to inefficiency and potential harm.
Innovation Solution
A door stopper with a movable head and pressure spring mechanism that allows the door to be easily opened or closed without manual intervention, adhered to the floor in front of the door, ensuring the door remains open or closed without physical contact, using an adhesive base and elevation wedge for adjustable height and balanced contact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional door stoppers are placed between the open door and the floor, then the door can be prevented from closing, but the stopper requires manual removal or foot pushing, which is not user-friendly and leads to loss of time
Solution Approach 1:
The door stopper automatically returns to its blocking position after the door closes without requiring manual intervention. The spring mechanism self-resets the stopper to its initial position, allowing the door to be blocked automatically on the next opening, eliminating the need for users to manually remove or reposition the stopper
Solution Approach 2:
The stopper incorporates a movable head that can dynamically transition between two positions: a retracted position that allows the door to close freely, and a protruding position that blocks the door. The spring mechanism enables automatic transition between these states based on door movement, making the system adaptive and eliminating manual intervention
2Reliability
If conventional door stoppers are squeezed under the door, then the door can be prevented from closing, but the stopper may damage the door or the floor
Solution Approach 1:
The stopper uses a spring mechanism as an intermediary between the user's manual positioning action and the door blocking function. The spring absorbs and distributes the forces involved, preventing direct contact between the rigid stopper head and the door or floor surfaces that could cause damage, while still maintaining reliable blocking when engaged
Solution Approach 2:
The spring mechanism provides cushioning before the stopper head contacts the door to prevent damage. By incorporating the elastic element in advance, the system softens the interaction between the stopper and door, allowing reliable blocking without harmful impact forces that could damage either the door or floor surfaces
3Reliability
If stoppers that necessitate installation require screws or nails, then the stopper can be securely fixed, but installation is difficult and may damage the floor or walls
Solution Approach 1:
The invention replaces the traditional mechanical fastening system (screws or nails requiring drilling and assembly) with an adhesive bonding system. The adhesive base provides secure fixation to the floor surface through chemical adhesion rather than mechanical penetration, eliminating the need for complex installation tools and procedures while avoiding damage to the floor or walls
Solution Approach 2:
The adhesive base is designed as a disposable component that is applied once during installation and then discarded or covered. This single-use adhesive element provides sufficient fixation reliability for the stopper's lifetime without requiring recovery or reuse, simplifying the installation process while maintaining secure attachment
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
Enables effortless door operation for users of all abilities, preventing damage to doors and floors, reducing installation complexity, and saving time, while ensuring the door remains open or closed as intended.
Implementation Method 1
pressure spring mechanism that allows the door to be easily opened or closed
Implementation Method 2
pressure spring (3) is placed between the inner section (9) of the top protection groove
Implementation Method 3
adhesive base (4) that is to be placed in front of the door is first of all adhered to the elevation wedge (5)
Implementation Method 4
elevation wedge (5) is adhered to the floor and thereby the height between the stopper and the floor is adjusted
Data Source
AI summary
The door stopper is adhered to the front wing of the door that has been completely opened and the door is prevented to move from this point on. When the door is desired to be closed, the door is pulled gently by hand, the force applied by the door to the stopper tensions the pressure spring and the pressure spring forces the moveable head down to the floor, thereby enabling the door to pass over the stopper.