Gravity-Free Roller Blind Controller With Adjustable Spring Torque
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Solution Overview
Problem
Existing spring roller blinds cannot adjust the magnitude of torsion spring torque after initial adjustment, leading to functional failures due to torque changes over time, necessitating disassembly for torque adjustment.
Innovation Solution
A gravity-free spring roller blind controller with a torque adjustment assembly and torsion spring connecting rod assembly, allowing for real-time adjustment of torsion spring torque using a torque adjustment knob without disassembly, featuring a one-way torsion spring and guide sleeve mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the torsion spring torque is adjusted during installation, then the curtain cloth can stop at any position, but the torque cannot be adjusted after installation, leading to functional failure when torque changes over time
Solution Approach 1:
The patent transforms the static torsion spring system into a dynamic adjustable system by introducing a torque adjustment knob that allows the torsion spring torque to be modified after installation. The adjustment mechanism includes a guide sleeve that can rotate relative to the torsion spring, enabling dynamic adaptation of the torque magnitude to maintain curtain positioning functionality over time.
Solution Approach 2:
The patent introduces a guide sleeve as an intermediary component between the torque adjustment knob and the torsion spring. This guide sleeve transmits the rotational motion from the adjustment knob to the torsion spring while providing a controlled interface for torque modification, thereby enabling indirect adjustment of the torsion spring torque without directly disassembling the spring mechanism.
2Reliability
If the torsion spring is replaced or torque is adjusted, then the functional failure is resolved, but disassembly is required which limits use and function
Solution Approach 1:
The patent enables the user to perform maintenance and torque adjustment themselves without requiring professional service or disassembly of the roller blind mechanism. The torque adjustment knob provides a user-friendly interface that allows individuals to easily adjust the torsion spring torque to restore the curtain positioning function, eliminating the need for complex maintenance operations.
3Adaptability or versatility
If a torque adjustment mechanism is added, then real-time torque adjustment is enabled, but the device structure becomes more complex
Solution Approach 1:
The guide sleeve serves multiple functions: it acts as a protective cover for the torsion spring, provides a rotational interface for torque adjustment, transmits rotational motion from the adjustment knob to the spring, and maintains the structural integrity of the roller blind mechanism. This multi-functionality reduces the need for additional separate components, thereby limiting the increase in overall device complexity.
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 convenient and logical adjustment of torsion spring torque to maintain curtain cloth positioning at any height, preventing torque transmission and facilitating assembly and disassembly, while maintaining structural integrity and functionality.
Implementation Method 1
a one-way torsion spring is sleeved on a mounting shaft of the torsion spring mounting seat
Implementation Method 2
the first flange reversely pushes the one-way torsion spring so that the one-way torsion spring is locked tightly onto the mounting shaft
Data Source
AI summary
Provided in the present invention is a gravity-free spring roller blind controller. The gravity-free spring roller blind controller comprises a torque adjustment assembly and a torsion spring connecting rod assembly. The torque adjustment assembly comprises a bracket, a torsion spring mounting seat, a guide sleeve, and a roller blind sleeve. A one-way torsion spring is sleeved on a mounting shaft of the torsion spring mounting seat, the guide sleeve is further rotatably sleeved with a torque adjustment knob, the guide sleeve is provided with a first flange, and a second flange is provided on the torque adjustment knob. The first flange reversely pushes the one-way torsion spring so that the one-way torsion spring is locked tightly onto the mounting shaft. According to the present invention, the torque of the torsion spring on the torsion spring connecting rod assembly is increased or decreased by forwardly or reversely rotating the second flange.