Serrated Belt Meshing via Deformation for Shutter Rolling
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Solution Overview
Problem
Serrated shutters with belts face challenges in achieving precise meshing due to varying tooth distances caused by curvature and thickness variations during rolling, leading to imperfect engagement.
Innovation Solution
Adjusting the position of the teeth on at least one belt during rolling by deforming it to ensure meshing and stabilizing the belt position relative to the shutter, either by stretching and fixing during winding or by using a serrated belt penetrating a plastic belt to form teeth, allowing for precise meshing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the shutter is rolled up with fixed tooth positions, then the structure is simple and manufacturing is easy, but the tooth distance varies causing imperfect meshing
Solution Approach 1:
The belt is designed to be deformable during the rolling process, allowing the tooth positions to dynamically adjust as the shutter is rolled up. The belt can be stretched or compressed to compensate for variations in tooth distance, ensuring proper meshing between engaged belts while accommodating the changing geometry of the rolled shutter.
Solution Approach 2:
The physical parameters of the belt (such as length, tension, or material properties) are changed during the rolling process to achieve proper tooth alignment. By modifying these parameters, the system adapts to the varying tooth distances that occur during rolling, thereby improving meshing precision without requiring complex adjustment mechanisms.
2Manufacturing precision
If the belt is deformed to adjust tooth position during rolling, then meshing precision is improved, but the process time increases
Solution Approach 1:
The belt is pre-configured with specific material properties or pre-marked deformation zones that enable it to be easily deformed during rolling. This preliminary preparation allows for quick adjustment of tooth positions without requiring time-consuming manual intervention or complex adjustment procedures, thus maintaining high meshing precision while minimizing process time.
3Reliability
If both belts are made to mesh before fixing to shutter, then engagement is optimized, but the complexity of the rolling process increases
Solution Approach 1:
The meshing process and the fixing process are merged into a single integrated operation. Both belts are made to mesh and then fixed to the shutter in one continuous rolling action, eliminating the need for separate adjustment and fixation steps. This reduces process complexity while ensuring reliable engagement, as the belts are secured in their meshed position during the same operation.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables precise meshing of serrated belts on shutters, maintaining engagement stability and accommodating thickness and length tolerances, facilitating efficient rolling and unrolling mechanisms.
Implementation Method 1
the teeth of the serrated belt penetrate in the plastic belt and form teeth in the latter, such that both belts are made to mesh
Implementation Method 2
Next, the plastic is made to set so as to stabilize the position of the teeth in relation to the shutter
Data Source
AI summary
The present invention concerns a method for producing a shutter (2) designed to be rolled up and unrolled, characterized in that on each face, opposite one another, is provided a serrated belt (3,4) comprising a succession of teeth, and in that, in order to make it possible for both belts (3,4) to mesh, the position of the teeth of at least one of the belts (3,4) is adjusted by deforming said belt (3,4) in such a way that both belts (3,4) can mesh, and that this mutual position of the belts (3,4) can subsequently be stabilized.