Roller Blind Positioning Structure Using Tooth Engagement
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Solution Overview
Problem
Traditional roller blind positioning structures are time-consuming and require multiple personnel to assemble, especially for large curtains, due to complex assembly steps and the need for manual adjustment of vertically extending and shrinking positions.
Innovation Solution
A fast positioning structure for roller blinds featuring a controller with an axle rod, axial rail limiting assembly, elastic member, touch member, positioning member, and outer sleeve tube, allowing for automatic assembly and positioning without screws through tooth engagement mechanisms, enabling rapid and efficient adjustment of curtain positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional positioning structures are used for roller blinds, then the assembly can be completed with basic components, but the assembly process becomes time-consuming and requires multiple personnel
Solution Approach 1:
The positioning structure is divided into modular components including positioning members with positioning holes, connector members with positioning protrusions, and limit members. Each component can be independently manufactured and assembled, enabling rapid assembly while maintaining structural functionality for limiting curtain extension and retraction
Solution Approach 2:
The patent combines multiple functions into integrated components. The connector member simultaneously provides connection between rod and tube, positioning through protrusions fitting into positioning holes, and limits movement boundaries. This merging of functions reduces the number of separate parts and assembly steps required
2Ease of operation
If traditional screw-based positioning methods are used, then secure positioning can be achieved, but the assembly process requires disassembly and reassembly multiple times
Solution Approach 1:
Positioning holes are pre-formed in the positioning members at specific locations, and positioning protrusions are pre-formed on connector members. This preliminary preparation of positioning features eliminates the need for repeated disassembly and reassembly, as components can be directly positioned and secured in their correct locations during initial assembly
Solution Approach 2:
The patent replaces traditional screw-based mechanical fastening with a hole-and-protrusion insertion system. This substitution eliminates the need for threading, tightening, and alignment adjustments associated with screws, allowing for rapid assembly by simply inserting connector members into positioning holes and securing with limit members
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 rapid and efficient positioning of curtain fabrics by automating the assembly process, reducing manpower requirements and simplifying the adjustment of vertically extending and shrinking positions, thus addressing the inefficiencies of traditional methods.
Implementation Method 1
the assembly may further store potential energy and release that energy in the form of kinetic energy at a specific shade position during extension of the shade
Data Source
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AI summary
A fast positioning structure of a safe position limiting device of a roller blind is disclosed herein. It mainly comprises a controller (1) having an axle rod (11), an axial rail limiting assembly (2) assembled to the axle rod (11) and having a screw member (21), an elastic member (22) in the screw member (21), and an inner tube (23) with which a first tooth part (231) is provided, a touch member (3) for limiting the inner tube (23) in the screw member (21), a positioning member (4) and a position limiting member (5) disposed at an external of the screw member (21), and an outer sleeve tube (6) disposed at an external of the screw member (21) and having a seal cap (61) with which a second tooth part (611) is provided at one end thereof for corresponding to the first tooth part (231) of the inner tube (23).