Universal Doorstop with Handle Rest and Blocking Section
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Solution Overview
Problem
Existing doorstops are often dimension-specific and can be easily removed, making them unreliable for securing doors in various environments, especially in multi-family houses where tradesmen need to keep doors open without fixing them in place.
Innovation Solution
A doorstop with a partially flat first section that rests on a doorknob or door handle, featuring a recess for attachment and a balanced design allowing it to tilt into a stable position, ensuring secure attachment to any door without precise dimension matching, and including additional sections for information display.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a doorstop is designed to be attached to a specific door type with precise dimensions, then it provides stable support, but it cannot be attached to doors with different dimensions
Solution Approach 1:
The doorstop is designed with a universal attachment mechanism that can be used on any door type regardless of dimensions. The holding section with recesses and protrusions can attach to various door handles, and the blocking section can be positioned at different locations along the door edge, making the single device adaptable to multiple door configurations without losing its support function.
2Ease of operation
If a doorstop is easily removable for convenient handling, then it can be quickly installed and removed, but it can be carelessly removed by residents
Solution Approach 1:
The doorstop features a dynamic attachment system where the holding section can be easily attached and detached by authorized persons (tradesmen), but once attached, the blocking section extends into the door gap creating a mechanical interlock that prevents accidental removal by residents. The device transitions from a easily attachable state to a securely locked state during normal operation.
3Reliability
If a doorstop fixes the door in a certain position, then it prevents the door from moving, but it prevents adjustment of the door position when needed
Solution Approach 1:
The blocking section is designed to be positionable at different locations along the door edge, allowing the door to be held at various open positions rather than a fixed position. The holder can be attached at different heights and the blocking section can engage at different points, providing dynamic adjustability while maintaining secure door position control when needed.
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 doorstop securely holds any door open without fixing it in place, allowing for easy adjustment and preventing accidental removal, thus addressing the need for a versatile and reliable solution for various door types.
Implementation Method 1
The doorstop then tilts into a stable position by itself due to its center of gravity.
Data Source
Figure 1~2
Figure 3
AI summary
A doorstop for mounting on a door (3) in the area of the door handle or lever has a first section (1) that is at least partially planar. It is designed to be positioned in front of a first side (3a) of the door (3) and has a blocking section adjoining or integrally formed with the first section (1). The first section (1) has at least one retaining section (1a). This retaining section is designed to rest against or against a door handle or lever with at least a portion of its length. The blocking section is positioned between the door (3) and the door frame (4).