Spring-Loaded Door Stopping Device for Automatic Closure Prevention
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Solution Overview
Problem
Existing door stopping devices fail to effectively prevent doors from closing abruptly, posing a risk of injury to individuals and pets, and lack features such as automatic deployment, easy installation, and protective covers to prevent damage.
Innovation Solution
A door stopping device with a spring-loaded mechanism that automatically deploys to keep doors slightly ajar, featuring a mounting plate for secure installation, a rotating arm with a protective cover, and a manual reset mechanism, designed to prevent abrupt door closures and protect against injury.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a door stopping device is installed to prevent abrupt door closure, then safety against injury is improved, but device complexity increases
Solution Approach 1:
The door stopping device employs a spring-loaded mechanism that dynamically adjusts its position. The spring provides automatic deployment when the door approaches a critical closing position, and the mechanism can be manually reset when needed. This dynamic operation allows the device to respond automatically to door motion while maintaining simplicity in its mechanical design.
Solution Approach 2:
The spring-loaded mechanism provides self-service functionality by automatically deploying to stop the door from closing abruptly. The system uses the door's own motion (its weight and momentum) to trigger the spring mechanism, eliminating the need for external sensors, motors, or complex control systems. The device serves itself by converting the door's closing force into the activation energy for the spring mechanism.
2Reliability
If a spring-loaded mechanism is added to automatically deploy and keep doors open, then safety is improved, but device complexity increases
Solution Approach 1:
The spring mechanism is pre-loaded with stored energy in a compressed state, ready to deploy automatically when the door approaches a critical closing position. This preliminary action of pre-compressing the spring allows the system to respond instantly and automatically without requiring external power sources or complex control logic. The spring is already in position and ready to act when needed.
3Object-affected harmful factors
If a protective cover is added to the rotating arm, then protection against door finish damage is improved, but device complexity increases
Solution Approach 1:
A protective cover is introduced as an intermediary element between the rotating arm and the door finish. This cover acts as a mediator that prevents direct contact between the mechanical arm and the door surface, thereby protecting the door finish from scratches or damage. The protective cover is a simple additive component that provides the necessary protection without significantly complicating the overall device structure.
4Ease of operation
If a mounting plate with through openings is used for secure installation, then ease of installation is improved, but device complexity increases
Solution Approach 1:
The mounting plate is designed as a separate, modular component with pre-drilled through openings, allowing the installation process to be segmented into simple steps: positioning the plate, drilling through the openings, and securing it to the door frame. This segmentation of the mounting function into a dedicated component with built-in mounting features simplifies the installation process while maintaining structural integrity.
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 device effectively prevents doors from slamming, reducing the risk of injury to children, pets, and individuals by keeping doors open until manually reset, while also protecting door finishes and ensuring easy installation and aesthetic compatibility.
Implementation Method 1
a spring-loaded mechanism component is attached to the mounting plate
Data Source
AI summary
A door stopping device is disclosed for preventing doors from closing abruptly and/or unexpectedly and for prohibiting injury to individuals or pets. The door stopping device comprises a base component with a rectangular shaped mounting plate and an automatic spring-loaded stopping design. Further, a rotating arm, a protective sleeve, and spring-loaded mechanism components are housed in a cylinder-shaped casing secured to the base component mounting plate. The device remains engaged after automatic deployment until it has been manually reset with the reset button or mechanism situated at one end of the cylindrical tube. Additionally, the device is easy to install to any door frame or solid surface for enhanced safety in a variety of settings.