Door Actuator Linkage Connection via Segmented Element
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Solution Overview
Problem
Conventional door actuator arrangements face challenges in mounting due to the large space occupation and complexity of connection elements that penetrate the linkage head, hindering cable routing and requiring intricate constructive measures to manage cables.
Innovation Solution
The door actuator arrangement features a connection element that connects the linkage head to the output shaft at one end, allowing for flexible mounting and torque transmission without penetrating the linkage head, thereby preserving space for cable routing, using a form closure or screw connection that is accessible from the opposing side.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a connection element penetrates the entire linkage head to connect the linkage head to the output shaft, then the connection is secure and torque transmission is reliable, but the installation space in the linkage head is occupied and cable routing becomes complex
Solution Approach 1:
The connection element is divided into two separate parts: a first connection part integrated into the linkage head and a second connection part integrated into the output shaft. These parts connect to each other without the connection element penetrating the entire linkage head, thus securing the connection while preserving cable routing space.
Solution Approach 2:
A magnetic field acts as an intermediary between the first connection part and the second connection part. The magnetic field enables secure connection and torque transmission without requiring a physical connection element to penetrate the linkage head, thereby simplifying cable routing.
2Strength
If a connection element penetrates the entire linkage head, then the linkage head is securely connected to the output shaft, but the installation space for cable routing is reduced
Solution Approach 1:
The connection element is segmented into two separate parts located at different positions. The first connection part is integrated into the linkage head while the second connection part is integrated into the output shaft, eliminating the need for a long penetrating connection element and thus preserving volume for cable routing.
Solution Approach 2:
The mechanical connection system is supplemented or replaced by a magnetic field that acts between the two connection parts. This substitution allows for secure connection without requiring a large physical connection element to penetrate the linkage head, thereby preserving internal volume.
3Ease of manufacture
If conventional constructive measures are taken to move the connection element past a cable in the linkage head, then the connection is achieved, but the device complexity increases
Solution Approach 1:
A magnetic field serves as an intermediary to establish the connection between the linkage head and output shaft without requiring physical connection elements to move past cables. This eliminates complex constructive measures while maintaining ease of manufacture.
Solution Approach 2:
The connection element is extracted from the linkage head structure and replaced by separate connection parts at different locations, with the magnetic field mediating the connection. This extraction eliminates the need for complex constructive measures to route the connection element past cables.
Data Source
AI summary
A door actuator arrangement, comprising a door actuator having an output shaft, with the output shaft having a first face-side end and an opposing second face-side end, a linkage, whose linkage head is fitted on the first end of the output shaft and is connected to the output shaft in a rotationally fixed manner and a connection element. The connection element is connected or can be connected at the first end to the linkage head, protrudes into the output shaft and is accessible at the second end to make a connection between linkage head and output shaft.