Door Hinge Integrated Actuating Element for Security

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Solution Overview

Problem

Existing door hinges lack a compact design that integrates both adjustment and security functions, often requiring separate components and risking misalignment during installation.

Innovation Solution

A door hinge design where the actuating element serves dual functions of adjustment and security, engaging with a receiving recess in the closed position to provide additional locking without additional space or assembly effort.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If separate door locks or locking bolts are added to improve security, then resistance to manipulation is improved, but device complexity increases and additional installation space is required

Engineering Contradiction:

Improveresistance to manipulationVSAvoidnumber of components

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines the door lock function with the hinge structure by integrating a locking element into the hinge's actuating mechanism. The actuating element serves dual purposes: adjusting the door position and engaging with a receiving recess to lock the door, thereby merging two separate functions into one unified component system.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The actuating element of the hinge is designed to perform multiple functions: it acts as both an adjustment mechanism for positioning the door and a locking element that engages with the receiving recess to provide security. This multi-functionality eliminates the need for separate locking components.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Reliability

If separate door locks or locking bolts are added to improve security, then resistance to manipulation is improved, but installation complexity increases due to alignment requirements

Engineering Contradiction:

Improveresistance to manipulationVSAvoidinstallation alignment

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

By merging the locking function into the existing hinge assembly, the patent eliminates the need for separate alignment procedures between independent lock and hinge components. The locking element is pre-integrated with the hinge's actuating mechanism, ensuring automatic alignment during installation.

Inventive Principle:

Principle #5Merging (Combining)

3Reliability

If the actuating element is extended to provide locking function, then security is improved, but the hinge dimensions increase

Engineering Contradiction:

Improvesecurity functionVSAvoidactuating element extension

Core Design Contradiction:

ReliabilityVSLength of moving object

Solution Approach 1:

The locking function is nested within the existing hinge structure by having the actuating element engage with a receiving recess that is integrated into the hinge body. This nesting approach allows the locking mechanism to be contained within the overall hinge envelope, minimizing dimensional increases.

Inventive Principle:

Principle #7Nested doll (Nesting)

Data Source

PatentEP4180606B1Door hinge and door

Publication Date: 2026.04.15 SIMONSWERK GMBH

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AI summary

The invention relates to a door hinge comprising a first fastening body (1) and a second fastening body (2), which are pivotally connected to each other and are opposite each other in a closed position, wherein an adjustment device with an actuating element (5) is received by the first fastening body (1). According to the invention, the at least one actuating element (5) extends out of the first fastening body (1) and engages in a receiving recess (6) of the second fastening body (2) in the closed position. The invention further relates to a door comprising a door frame (3), a door leaf (4), and typically at least two door hinges.