Cordless Window Shade Balance Force Component
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Solution Overview
Problem
Existing window shades face issues with electric shades requiring costly wiring and troublesome construction, and manual shades are labor-intensive and pose safety hazards due to ropes, especially for children.
Innovation Solution
A cordless window shade balance force component featuring a core tube with coil springs and planetary gears that store force internally, allowing easy retraction with minimal external effort, eliminating the need for wires and reducing safety hazards by using a spring balance system integrated into the window shade rod.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If electric window shades are used, then automation and ease of operation are improved, but device complexity and cost increase due to wiring requirements
Solution Approach 1:
The patent replaces the electric motor system with a purely mechanical spring-balanced system. The coil spring provides the balancing force to counteract the weight of the window shade, eliminating the need for motors, wiring, and electrical controls while maintaining automated-like ease of operation through balanced mechanical forces
Solution Approach 2:
The patent extracts and removes the electrical system (motor, wiring, control electronics) from the window shade mechanism, retaining only the essential mechanical components needed for operation. This simplifies the device by eliminating complex electrical subsystems while preserving the core function of easy operation
2Device complexity
If manual window shades with ropes are used, then device complexity is reduced, but safety hazards increase due to exposed ropes that can entangle children
Solution Approach 1:
The patent removes the hazardous rope component entirely from the system. Instead of using ropes that extend outside the tube and can entangle children, the design confines all operational components within the sealed tube structure, eliminating the safety hazard while maintaining mechanical simplicity
3Ease of operation
If cordless spring balance system is used, then safety hazards are reduced and ease of operation is improved, but manufacturing precision requirements increase due to balance calibration
Solution Approach 1:
The patent employs adjustable spring parameters and modular component design that allow for balance calibration after assembly. By making the spring selection and assembly process configurable, the system can be tuned to achieve proper balance for different window shade weights, reducing the stringency of pre-manufacturing precision requirements
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 solution enables cordless control of window shades with reduced friction and safety risks, allowing easy operation and adjustment of shades of varying sizes and materials, enhancing user experience while avoiding the drawbacks of wired electric shades and hazardous ropes.
Implementation Method 1
the force storage of the spring
Implementation Method 2
deceleration of the planetary gear
Data Source
AI summary
The present application provides a balance force component of a cordless window shade, which relates to the technical field of window shade components. A balance force component of a cordless window shade, comprising a windows shade tube, a core tube component is respectively provided at both ends inside the window shade tube, a deceleration component is respectively provided at the outer ends of the core tube component, and the outer ends of the deceleration components are respectively provided with a mounting component, the core tube component comprises an outer bracket, a number of clamping holes are equidistantly arranged on one side of the outer bracket, both sides of the outer wall of the outer bracket are provided with limiting grooves, and the outer ends of the inner wall of the outer bracket are provided with tooth grooves.