Roller Shutter Actuation With Linear Multi-Actuator Transmission
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current spring roller shades have limited output power due to a single actuator and require coaxial arrangement of multiple actuators, leading to a complex and immobile structure with high assembly accuracy.
Innovation Solution
A roller shade actuation device with at least two actuators connected linearly through a transmission mechanism, featuring driving gears and bevel gears to facilitate power transmission and assembly, allowing for easy adjustment of driving forces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If at least two actuators are provided to increase output power, then the power output is improved, but the structure becomes more complex and assembly accuracy requirements increase due to coaxial arrangement requirements
Solution Approach 1:
The patent transitions from a traditional coaxial arrangement of multiple actuators to a linear sequential arrangement where actuators are connected in series along a line. This dimensional change allows actuators to be connected without requiring precise coaxial alignment, thereby reducing assembly complexity while maintaining increased power output capability.
Solution Approach 2:
The patent introduces a transmission mechanism with flexible connections between actuators, allowing for adjustable positioning and force distribution. The transmission mechanism includes elements that can accommodate variations in actuator positions while maintaining effective power transmission, making the system more adaptable and easier to assemble.
2Power
If at least two actuators are arranged coaxially to form overall external power output, then the power output is improved, but the assembly accuracy requirement becomes higher
Solution Approach 1:
The patent arranges actuators in a linear sequential configuration rather than requiring coaxial alignment. This spatial reconfiguration allows each actuator to be positioned independently along a line, significantly reducing the assembly accuracy requirements while still achieving combined power output.
Solution Approach 2:
The transmission mechanism acts as an intermediary between the multiple actuators and the final output. It includes transmission elements that can accommodate positional variations and translate them into effective motion, thereby decoupling the assembly accuracy requirements from the actuator positioning.
3Power
If actuators are arranged coaxially and fixed relative to each other, then the power output is improved, but the structure becomes more immobile and less adaptable to optimal design
Solution Approach 1:
The patent creates a dynamic transmission mechanism that allows for adjustment and optimization of the actuator arrangement. The linear sequential connection with transmission elements enables the system to adapt to different design requirements and optimize performance without being constrained by fixed coaxial positioning.
Solution Approach 2:
By arranging actuators in a linear sequence rather than coaxially, the system gains flexibility in spatial configuration. This allows for easier integration with different mechanical layouts and enables optimal design arrangements that were not possible with coaxial constraints.
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 device achieves easy assembly and effective combination adjustment of driving forces, enhancing power output for roller shade operation while maintaining a compact structure.
Implementation Method 1
Each driver comprises a shell fixed relative to the winding drum and a rotary power member arranged in the shell, and further comprises a planetary gear which is fixed to an output shaft of the rotary power member and coaxial with the output end, and a fixed gear which is pivotally connected to the shell and meshed with the planetary gear.
Data Source
Figure 1
Figure 2
AI summary
A roller shade actuation device includes an actuator arranged in a winding drum, a shaft inserted into the winding drum, and a transmission mechanism. The actuator includes a housing fixed to the winding drum, a rotary power member arranged in the housing, a driving gear fixed to an output shaft of the rotary power member and coaxial with the output shaft, and a first transmission gear rotatably mounted to the housing and meshed with the driving gear. The number of the actuator is at least two which are connected linearly in sequence. The driving gear of one of the at least two actuators adjacent to the transmission mechanism is transmission-matched with and connected to the transmission mechanism, and the driving gears of the remaining actuators are meshed with the first transmission gears of neighboring actuators adjacent to the transmission mechanism. The at least two actuators are connected in series to form an actuator combination through the driving gears and the first transmission gears, to output good power to realize the winding of the roller shade. The assembly is easy and the combined adjustment of the driving force can be effectively realized.