Door Stop Device with Rope Attachment Mechanism

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Solution Overview

Problem

Conventional door stops require users to bend over to place and retrieve them, leading to strenuous use and a high risk of loss or theft due to lack of attachment mechanisms.

Innovation Solution

A door stop device featuring a rope with a top and bottom portion, a top rope holder, a lockable ring, and a foot-shaped portion, allowing secure attachment to a door handle without requiring users to bend over, and incorporating a lockable mechanism to prevent loss.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If conventional door stops are used, then the door can be kept open, but the user must bend over to place and retrieve the stop, causing physical strain

Engineering Contradiction:

Improveease of door stop placementVSAvoidphysical strain on user

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The patent introduces a rope as an intermediary element that connects the door stop to the door handle. This rope allows the door stop to be positioned and secured without requiring the user to bend over and manually place it under the door, thereby eliminating physical strain while maintaining the door-opening function.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The invention transitions from a ground-level door stop placement (horizontal plane) to a handle-level attachment (vertical dimension). By attaching the door stop to the door handle via the rope, the system operates in a different spatial dimension that is more accessible to users and eliminates the need to bend over.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

2Reliability

If conventional door stops are used, then the door can be kept open, but the door stop can easily be misplaced, lost or stolen due to lack of attachment mechanisms

Engineering Contradiction:

Improvedoor position stabilityVSAvoidloss of door stop

Core Design Contradiction:

ReliabilityVSLoss of substance

Solution Approach 1:

The rope acts as a secure intermediary connection between the door stop and the door handle. This attachment mechanism ensures the door stop remains reliably connected to the door, preventing it from being misplaced, lost, or stolen while maintaining its function of keeping the door open.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The door stop is pre-attached to the rope, which is then secured to the door handle in advance. This preliminary attachment ensures that the door stop is securely positioned before use, preventing loss or misplacement during operation.

Inventive Principle:

Principle #10Preliminary action

3Reliability

If a rope attachment system is added to the door stop, then the door stop can be securely attached to the door handle, but the device complexity increases

Engineering Contradiction:

Improveattachment securityVSAvoidstructural complexity of door stop

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The door stop system is divided into separate functional components: the door stop body, the rope, and the attachment mechanism. This segmentation allows each component to perform its specific function independently, maintaining simplicity while achieving secure attachment through the combination of elements.

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUS10113350B2Door stopping device with handle

Publication Date: 2018.10.30 BROWN ROBERT PAUL

AI summary

A door stop device is disclosed. A door stop device comprising a rope with a top portion and a bottom portion, a top rope holder, a bottom rope holder, a first ring, a lockable ring, a wire ring, a foot shaped portion, wherein the top portion of the rope is secured and configured to the top rope holder in such a manner as to form a loop for hanging or attaching the loop around a door handle, wherein the bottom rope holder couples the rope to the first ring, wherein the first ring is linked to the lockable ring, and wherein the lockable ring is linked to the wire ring; and wherein the wire ring is further linked to the foot shaped portion.