Adjustable Door Hinge With Peg And Stop Block

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Solution Overview

Problem

Current door hinges lack the ability to easily and adjustably hold a door in specific open positions and set a maximum angle of opening, often requiring unsightly or damaging solutions like door stops, which are not user-friendly or durable.

Innovation Solution

A door hinge assembly with interlocking knuckles and a peg system that allows for adjustable locking of the door at specific angles and a maximum opening width, using a pin and ring configuration to secure the door in place and limit its rotation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If traditional door stops or bumpers are used to limit door opening angle, then the maximum opening angle can be controlled, but the device becomes unsightly and prone to damage

Engineering Contradiction:

Improveease of adjusting maximum opening angleVSAvoidcomplexity of hinge structure

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The hinge is divided into functional segments: knuckles with teeth for angular positioning, a peg for locking at specific angles, and a bumper with stop block for maximum angle limitation. This segmentation allows each component to perform its specific function while maintaining overall simplicity

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The hinge incorporates adjustable elements that can be repositioned by the user. The peg can be inserted at different positions to change the holding angle, and the stop block can be repositioned on the runway to adjust the maximum opening angle, making the device dynamic and adaptable to different needs

Inventive Principle:

Principle #15Dynamics

2Reliability

If door stops requiring carpenter installation are used, then maximum opening angle can be established, but installation becomes difficult and requires professionals

Engineering Contradiction:

Improvereliability of door angle controlVSAvoidease of installation

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The hinge is designed as a self-contained unit where the peg and stop block mechanisms are integrated into the hinge itself. Users can adjust and install the hinge without requiring carpenter intervention, as the adjustment mechanisms are built-in and user-operable

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The angle control functionality is merged directly into the hinge structure rather than being a separate door stop device. The knuckles, teeth, peg, and stop block are combined into a single integrated hinge assembly that performs both hinging and angle control functions

Inventive Principle:

Principle #5Merging (Combining)

3Ease of operation

If bumpers are incorporated into the hinge pin to limit door opening, then maximum angle control is achieved, but the bumpers are prone to damage from forceful door opening

Engineering Contradiction:

Improveuser-friendliness of angle adjustmentVSAvoiddurability of angle control mechanism

Core Design Contradiction:

Ease of operationVSStrength

Solution Approach 1:

The stop block acts as an intermediary between the bumper and the frame. Instead of the bumper directly contacting the frame (which causes damage), the stop block intercepts the bumper's motion path and provides a controlled stopping point, reducing impact forces

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The runway provides a guided path for the stop block, allowing it to move smoothly and absorb the impact of the bumper in a controlled manner. This pre-established guidance structure prevents sudden impacts and distributes the force over a longer duration

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

4Duration of action of moving object

If devices are used to hold door open at fixed positions, then door can remain open for duration, but the devices are ineffective or difficult to operate

Engineering Contradiction:

Improveduration door remains openVSAvoidease of adjusting holding position

Core Design Contradiction:

Duration of action of moving objectVSEase of operation

Solution Approach 1:

The continuous rotation of the hinge is substituted with a discrete angular positioning system using teeth and peg. This mechanical substitution allows the door to be held at specific angular positions rather than requiring external devices like door holders or obstacles

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The hinge transforms the continuous parameter of rotation angle into discrete angular positions defined by the teeth configuration. This parameter change allows precise angular positioning while maintaining simple operation through the peg insertion mechanism

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS10329814B1Door hinges

Publication Date: 2019.06.25 TAMER ALBERT

AI summary

Door hinges are disclosed that are configured to allow operators to hold a door in an open position at specific and desired angles (and for such specific and desired angles to be easily and quickly modulated by an operator). In addition, the door hinges are configured to allow an operator to easily and quickly establish a maximum angle by which the hinge—and its attached door—are allowed to be opened, i.e., how wide the hinge and door are allowed to open (which also may be easily and quickly modulated by an operator).