Door Drive Lever Mechanism for Error-Resistant Mounting
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Solution Overview
Problem
Existing door drive installation methods are prone to errors and time-consuming, requiring complex alignment and fastening processes that can lead to costly rework.
Innovation Solution
A method for installing a door drive with a door operator, fastening device, and lever mechanism, where the actuating unit moves the axle device into specific lever assembly positions, using a motor or clamping force unit, and optionally assisted by a detection unit or switch, to simplify and expedite the assembly process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual alignment and positioning of movable elements is used during installation, then installation flexibility is maintained, but installation time increases and error susceptibility increases
Solution Approach 1:
The patent applies preliminary action by pre-positioning the lever mechanism in a defined starting position before installation. The lever mechanism includes a lever arm that can be pre-adjusted to specific angles (e.g., 0°, 45°, 90°, 135°, 180°) relative to the actuator's centerline, allowing the installer to quickly select and attach the appropriate configuration without time-consuming on-site alignment. This pre-prepared positioning eliminates the need for complex measurements and adjustments during installation, thereby reducing both installation time and error susceptibility.
2Manufacturing precision
If complex alignment procedures are used for positioning lever mechanism, then installation precision is improved, but device complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the lever mechanism into modular components with standardized connection interfaces. The lever arm is designed as a separate element that can be independently positioned and attached to the actuator at predetermined angles. This modular segmentation allows each component to be manufactured with standard tolerances and assembled through simple attachment operations, eliminating the need for complex alignment procedures while maintaining installation precision.
3Productivity
If standardized installation procedures are used for different door configurations, then productivity is improved, but adaptability to different door movements decreases
Solution Approach 1:
The patent applies universality by designing the lever mechanism with multi-functional capabilities to accommodate different door configurations. The lever arm can be positioned at multiple predetermined angles (0°, 45°, 90°, 135°, 180°) relative to the actuator's centerline, allowing a single standardized lever mechanism design to serve multiple door types and movement patterns (swing doors, sliding doors, folding doors, etc.). This universal design enables installers to use the same installation procedure for various door configurations by simply selecting the appropriate pre-defined lever position, thereby maintaining both productivity and adaptability.
Data Source
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AI summary
The invention relates to a method for mounting a door drive (1) comprising a door actuator (10) with a mounting section (12) for attachment to a counter-mounting section (102) of a door (100), a fastening device (14) for attachment to a counter-fastening section (104) of the door (100), and a lever mechanism (16) with a first end (18) and a second end (20) for movably mounting the door actuator (10) on the fastening device (14) between a closed position (SP) and an open position (OP), wherein the fastening device (14) is arranged at the first end (18) of the lever mechanism (16), and an axle device (22) of the door actuator (10) is arranged at a second end (20) of the lever mechanism (16), and an actuating unit (28) of the door actuator (10) for moving the axle device (22) of the door actuator (10). Furthermore, the invention relates to a door drive (1) for use in the method according to the invention.