Recessed Door Stop with Magnetic Inclined Surface
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Solution Overview
Problem
Existing door stops often present tripping hazards, are unsightly, and fail to provide a premium feel when stopping doors, as they can feel harsh or loose, and may not be aesthetically suitable for all applications.
Innovation Solution
A door stop design featuring a door-carriable portion with a magnetically co-operable inclined surface that drives an engaging member to create a soft stop, combined with a floor-carriable portion that is low-profile and hidden from view, minimizing tripping hazards and enhancing aesthetics, while using a compliant top to absorb shocks and reduce noise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a door-carriable portion is mounted on the door surface, then the door stop can effectively stop the door, but it presents tripping hazards and is unsightly
Solution Approach 1:
The door-carriable portion is nested within a cavity formed in the bottom edge of the door, with only a small portion visible. This nesting approach eliminates the tripping hazard while maintaining the door stopping function, as the engaged member can still be effectively engaged from below.
Solution Approach 2:
The solution moves the door-carriable portion from a surface-mounted configuration to a recessed configuration within the door thickness. This dimensional change allows the door stop to be effective while minimizing its visual profile and eliminating tripping hazards associated with protruding elements.
2Reliability
If a door-carriable portion is mounted on the door surface, then the door stop can effectively stop the door, but it is unsightly
Solution Approach 1:
The door-carriable portion is nested within a cavity formed in the bottom edge of the door, with only a small portion visible. This nesting approach eliminates the tripping hazard while maintaining the door stopping function, as the engaged member can still be effectively engaged from below.
Solution Approach 2:
The solution moves the door-carriable portion from a surface-mounted configuration to a recessed configuration within the door thickness. This dimensional change allows the door stop to be effective while minimizing its visual profile and eliminating tripping hazards associated with protruding elements.
3Reliability
If a hard stop surface is used, then the door stop is effective, but it feels harsh or crashy
Solution Approach 1:
The inclined portion is configured to gradually drive the engaging member downward before the door reaches the final stop position. This pre-cushioning action reduces the impact force and creates a softer, more controlled door closing experience, preventing harsh or crashy feelings.
Solution Approach 2:
The door stop transitions from a static hard surface to a dynamic system where the engaging member can move vertically along the inclined portion. This dynamic configuration allows the system to adapt to the door's motion, providing gradual deceleration and a smoother stopping feel.
4Shape
If the door-carriable portion is recessed in the door, then aesthetics are improved, but installation complexity increases
Solution Approach 1:
The door-carriable portion is designed as a separate, self-contained component that can be independently installed within the door cavity. This segmentation allows for simplified installation, as the component does not require complex integration with the door structure and can be easily positioned and secured.
Solution Approach 2:
The door-carriable portion is designed to be self-aligning and self-securing within the cavity, reducing the need for complex installation procedures. The component's geometry and mounting features enable it to automatically position itself correctly, minimizing installation complexity while maintaining aesthetic appearance.
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 solution provides a safe, aesthetically pleasing, and premium-feeling door stop that effectively stops doors without feeling harsh or loose, while being unobtrusive and easy to install, addressing the issues of tripping hazards and aesthetics in existing designs.
Implementation Method 1
The door-carriable portion is magnetically co-operable with a floor-carriable portion to lift an engaging member of the floor-carriable portion as the door is moved in a direction
Data Source
Figure 1~2
Figure 3~4
Figure 5
AI summary
A method of installing a door-carriable portion (2), for a door stop (1), to be carried by a door. The door-carriable portion includes a magnet and a retaining member (7). The method includes drilling a hole in a bottom of the door; placing the magnet in the hole; and fastening the retaining member to the bottom of the door to at least partly span the opening to retain the magnet.