Split Rigid Flexible Door Stop Mechanism
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Solution Overview
Problem
Conventional doorstops, whether rigid or flexible, fail to effectively absorb impact forces and are either prone to damage or aesthetically unappealing, leading to potential damage to walls and doors.
Innovation Solution
A flexible, wall-mounted doorstop mechanism that combines the aesthetics of a rigid doorstop with the functionality of a spring-type doorstop, featuring a split stem with internal springs that absorb and distribute impact forces without visible deformation, allowing the doorstop to return to its original position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a rigid doorstop is used, then it provides structural strength and aesthetic appeal, but it easily breaks or pulls out of the door or wall baseboard when impacted
Solution Approach 1:
The doorstop incorporates a spring mechanism that allows the rigid body to dynamically respond to impact forces. The spring compresses under lateral pressure and returns to its original position when the force is removed, enabling the rigid doorstop to absorb impact energy without breaking or pulling out of the mounting surface.
Solution Approach 2:
The doorstop changes its physical state from rigid to flexible under impact conditions through the spring mechanism. The rigid body remains structurally sound while the spring allows temporary deformation under force, then returns to its original rigid state, effectively adapting its mechanical properties based on applied load.
2Reliability
If a spring-type flexible doorstop is used, then it can absorb impact forces and reduce wall damage risk, but it buckles under pressure and becomes deformed and ineffective
Solution Approach 1:
The doorstop combines a rigid body structure with a spring mechanism to create a composite system. The rigid body provides structural strength and resists deformation, while the spring component enables impact force absorption. This composite structure maintains effectiveness after impact by preventing the buckling that plagues pure spring-type doorstops.
Solution Approach 2:
The doorstop is divided into distinct functional components: a rigid body portion that maintains structural integrity and aesthetic appearance, and a spring mechanism that handles impact absorption. This segmentation allows each component to perform its specialized function without compromising the other, preventing the deformation issues seen in unified spring-type designs.
3Shape
If a rigid doorstop is used, then it maintains visual appeal and design variety, but it does not yield when impacted from the side or downward pressure causing wall damage
Solution Approach 1:
The doorstop dynamically responds to impact forces by allowing the rigid body to shift position through the spring mechanism. This dynamic movement absorbs impact energy that would otherwise be transferred to the wall, preventing damage while maintaining the rigid body's aesthetic appearance and 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 mechanism provides effective absorption of impact forces, preventing damage to walls and doors while maintaining a visually appealing design, as it flexes under pressure and returns to its aligned position without visible damage.
Implementation Method 1
A spring is arranged in the top and bottom hollow sections. The spring holds the top portion to the bottom portion in alignment while also allowing the top portion to move in relation to the bottom portion in response to a force. The spring also returns the top portion in alignment with the bottom portion when the force is removed.
Data Source
AI summary
A door stop mechanisms is disclosed that is arranged for preventing a door from swinging back against a wall. The door stop mechanisms are flexible, wall mounted door stops to absorb the impact of the swinging door or other mechanisms imparting a sideways force. The door stops are also arranged to absorb the force, flex, and return, without damage to the mechanism. One embodiment of a door stop mechanism, according to the present invention comprises a bottom portion having a bottom hollow section and a top portion on the bottom portion. The top portion has a top hollow section facing the bottom hollow section. A spring is arranged in the top and bottom hollow sections. A first end of the spring is attached to the top portion and a second end of the spring is attached to the bottom portion. The spring holds the top portion to the bottom portion in alignment while also allowing the top portion to move in relation to the bottom portion in response to a force. The spring also returns the top portion in alignment with the bottom portion when the force is removed.