Hand-held Zebra Curtain Narrow Edge Design
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Solution Overview
Problem
Existing spring roller blind systems are limited in providing balanced resilience force and are not suitable for double-layer roller blinds, as they require longer spring bars for increased resilience, which restricts their application to single-layer, large-size curtains and result in limited resilience circles.
Innovation Solution
A hand-held narrow-edge zebra curtain design featuring left and right brackets with coiling apparatuses that include a regulating plunger, leaf springs, reed fixing and coiling discs, and gears, allowing for torsion presetting and balanced contraction torque, enabling narrower side edges and improved shading effects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a longer spring bar is used to increase resilience circles and balance resilience force, then the resilience force becomes more balanced and resilient, but the curtain width must be increased, making it unsuitable for small width windows
Solution Approach 1:
The invention divides the single spring bar system into two separate spring bars, each serving one layer of the double-layer curtain. This segmentation allows each spring bar to be optimized independently for its specific layer, achieving balanced resilience force without requiring an excessively long single spring bar that would increase curtain width.
Solution Approach 2:
The invention transitions from a single-dimension spring bar system to a two-dimension system with separate spring bars for each layer. This dimensional change allows independent optimization of resilience characteristics for each layer, solving the contradiction between resilience balance and curtain width.
2Reliability
If a single-layer curtain design is used with a spring bar system, then the resilience force can be sufficient for big size curtains, but double-layer roller blinds cannot be properly supported
Solution Approach 1:
The invention creates a universal spring bar system where separate spring bars can independently support each layer of the curtain. This multi-functional design allows the same mechanism to work effectively for both single-layer and double-layer curtains, greatly enhancing adaptability while maintaining sufficient resilience force.
Solution Approach 2:
By segmenting the spring support system into separate spring bars for each layer, the invention enables independent optimization for each layer's weight and size requirements, making the system adaptable to double-layer curtain configurations.
3Reliability
If the spring bar system is optimized for big size single-layer curtains, then the resilience force is sufficient, but the resilience circles are limited
Solution Approach 1:
The invention segments the resilience function into separate spring bars for each layer, allowing each spring bar to provide optimized resilience circles for its specific layer. This segmentation increases the total number of effective resilience circles without compromising the resilience force needed for big size curtains.
Solution Approach 2:
By having separate spring bars for each layer that can operate independently and continuously, the system maintains balanced resilience force throughout the entire operation cycle, maximizing the effective resilience circles without interruption or loss of force.
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
The design achieves balanced contraction torque and allows for narrower side edges, enhancing the shading effect and enabling the use of double-layer roller blinds with improved resilience and ease of operation.
Implementation Method 1
a leaf spring, a reed fixing disc and a reed coiling disc, wherein the leaf spring is sleeved on the reed fixing disc in a relaxed state, and the coiling end of the leaf spring is clamped with the reed coiling disc
Implementation Method 2
the bottom of the roller blind is provided with a bottom rod; a counterweight is arranged in the bottom rod
Data Source
AI summary
A hand-held curtain is provided. The curtain includes a left bracket, a right bracket corresponding to the left bracket, and a pylon connected to the left bracket and the right bracket. A scroll is arranged on the left bracket and the right bracket; a roller blind is arranged on the scroll; and coiling apparatuses used for coiling the scroll are respectively arranged on the left bracket and the right bracket.