Door Actuation Connecting Means Routing

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Solution Overview

Problem

Existing door actuation systems face design constraints and risk of damage due to exposed connecting means, which complicate assembly and reduce long-term stability.

Innovation Solution

A device with a drive and lever kinematics that includes a rotation compensation mechanism for the connecting means, allowing it to bend without rotating, compressing, or stretching, thereby reducing mechanical load and protecting it from environmental and mechanical influences.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If connecting means are routed along the outside between the door leaf and the door frame, then assembly is simple and accessible, but the connecting means are exposed to damage and environmental influences

Engineering Contradiction:
Improveassembly simplicityVSAvoidprotection against damage
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The connecting means is nested within the rotation space formed by the lever kinematics and drive, running through the apex point. This nesting protects the connecting means from external environmental influences and mechanical damage while maintaining functional connectivity between the door leaf and door frame.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The connecting means is routed through a third dimension (the rotation space apex) rather than along the traditional external path. By passing through the apex point in the rotational movement plane, the connecting means achieves a protected position that decouples it from relative rotations between components.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Ease of repair

If connecting means are routed externally for easy access, then maintenance is easier, but the connecting means are subject to mechanical load and environmental damage

Engineering Contradiction:
Improvemaintenance accessibilityVSAvoidmechanical load and environmental exposure
Core Design Contradiction:
Ease of repairVSObject-affected harmful factors

Solution Approach 1:

The connecting means is nested within the protected rotation space of the door actuation mechanism, shielding it from environmental factors such as moisture, dust, and UV radiation while reducing mechanical stress from external sources.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The rotation space apex acts as an intermediary point through which the connecting means passes. This intermediary position decouples the connecting means from relative rotations between the lever kinematics and drive, reducing mechanical load while maintaining electrical connectivity.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Stability of the object's composition

If the connecting means is fixed rigidly between components, then connection stability is high, but it cannot accommodate relative rotation between the door leaf and frame

Engineering Contradiction:
Improveconnection stabilityVSAvoidaccommodation of relative rotation
Core Design Contradiction:
Stability of the object's compositionVSAdaptability or versatility

Solution Approach 1:

The connecting means is configured to dynamically adapt to the rotational movement between the door leaf and frame by passing through the rotation space apex. This dynamic routing allows the connecting means to maintain stability while accommodating changing relative positions of connected components.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The connecting means utilizes the rotation space dimension to pass through the apex point, creating a geometric configuration that decouples it from relative rotations. This dimensional approach allows rigid connection stability while accommodating rotational adaptability between components.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Data Source

PatentEP3348765B1Device for at least partially automatic actuation of a door wing
Publication Date: 2020.04.22 DORMAKABA DEUT GMBH
  • EP3348765B1 patent drawingFigure 1a~2a
  • EP3348765B1 patent drawingFigure 1b~2b
  • EP3348765B1 patent drawingFigure 3~4

AI summary

The invention relates to a device (1) for at least partially automatic actuation of a door leaf (2) with at least one drive (3) for actuating the door leaf (2) and a frame element (4) for guiding the door leaf (2), wherein the drive (3) has at least one drive pivot axis (3.1), wherein a lever kinematics (5) with at least one lever element (5.1) is mounted on at least one first bearing (6.1) so as to be rotatable about the drive pivot axis (3.1), wherein the drive pivot axis (3.1) is arranged on the drive (3) and can be driven by the drive (3), and wherein the lever kinematics (5) can be arranged on at least one second bearing (6.2) so as to be rotatable about a frame pivot axis (4.1), wherein the frame pivot axis (4.1) is arranged on a frame element (4) and is guided through the frame element (4), whereby the door leaf (2) can be moved into an open position (I) and/or a closed position (II), wherein the lever kinematics (5) has at least one connecting means (7) for transmitting electrical energy and/or data between at least one energy source (8.1) and an energy receiver (8.2) on the door leaf (2), characterized in that the connecting means (7) is guided section by section through a rotation space (10) and transversely through the drive rotation axis (3.1) and/or the frame rotation axis (4.1).