Sliding Folding Shutter Drive with Pivoting Levers
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Solution Overview
Problem
Conventional sliding and folding window shutters face challenges in achieving a simple and reliable automatic drive system that aligns shutter elements in a common plane, especially with four-leaf designs, due to complex designs and limited attraction force of drive motors.
Innovation Solution
A drive device using pivoting levers that pivot about vertical axes, with engagement parts designed to be displaceable, allows for a simple and reliable automatic operation of sliding and folding window shutters, enabling alignment of shutter elements in a common plane without modifying existing shutter elements or guide rails.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If a linear drive interacts with the side edge of the second shutter element to open and close the shutter, then automatic operation is achieved, but the drive device becomes relatively complex in design
Solution Approach 1:
The drive device is segmented into two independent pivoting levers instead of one complex linear drive. The first pivoting lever (27) handles the first and second shutter elements, while the additional pivoting lever (35) handles the third and fourth shutter elements. This segmentation simplifies each individual drive component while achieving complete automatic operation of all shutter elements.
2Extent of automation
If a linear drive is used to move the second shutter element along guide rails, then automatic operation is achieved, but alignment of shutter elements in a common plane cannot be achieved due to limited attraction force
Solution Approach 1:
The pivoting levers are designed with displaceable engagement parts that dynamically adapt during operation. The engagement parts can displace relative to each other, allowing the drive mechanism to accommodate variations in shutter element positions and achieve precise alignment in the closed state, overcoming the limited attraction force issue.
3Ease of manufacture
If the pivoting axis of the pivoting lever is spaced apart from the vertical axis of the shutter element, then a conventional manually operable shutter can be easily equipped with a drive device, but the engagement parts must be designed to be displaceable
Solution Approach 1:
The engagement parts are designed with controlled displacability, allowing them to move within specific ranges to accommodate the offset between pivoting axes. This dynamic design enables easy integration with conventional shutters while maintaining reliable mechanical engagement throughout the operation cycle.
Data Source
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AI summary
A sliding window shutter has a series of rail-mounted folding panels. The window shutters are opened by a drive system and closed about a vertical axis (28) by a first motor (29) that drives a first panel swivel lever (27) that engages with a first pushrod. The drive system incorporates a second motor (37) powering a second swivel lever (35) operating about a vertical axis (36) and initiates motion in a third panel.