Interchangeable Tubular Actuator Head System
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Solution Overview
Problem
Existing tubular home automation actuators face challenges in interchangeability, customization, and assembly complexity, particularly due to the need for specific head systems that are not easily adaptable or interchangeable, leading to increased logistics and cost burdens, as well as impermeability issues in humid environments.
Innovation Solution
A tubular home automation actuator design featuring a head system with a fixed piece and bush-bearing that allows for interchangeable heads with different geometries and materials, where the bush-bearing is rotationally guided by the fixed piece and the head, enabling precise centering and torque transmission without direct connection to the actuator tube, and a method for producing such actuators with interchangeable parts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple specific head systems are provided to adapt to various casings and accessories, then adaptability is improved, but device complexity and logistics burden increase
Solution Approach 1:
The patent applies universality by designing a standardized head system with a universal interface that can accommodate multiple attachment accessories and casing types. The head system includes a standardized mounting interface that works with various attachment accessories, eliminating the need for multiple specialized head designs. This allows a single head system design to serve multiple functions and applications, reducing the number of references and simplifying logistics.
2Device complexity
If the head is directly connected to the actuator tube, then structural simplicity is improved, but interchangeability and customization difficulty increase
Solution Approach 1:
The patent applies segmentation by dividing the head system into separate modular components: a standardized head unit and a separate attachment accessory interface. This segmentation allows the head to be designed with standardized mounting features that enable easy interchangeability, while maintaining structural simplicity through clean separation of functions. The head can be independently manufactured and replaced without affecting the actuator tube or other components.
3Reliability
If attachment accessories are designed to take up weight and torque, then reliability is improved, but device complexity increases
Solution Approach 1:
The patent applies universality by designing attachment accessories with standardized interfaces that can handle multiple functions including weight support, torque transmission, and positional adjustment. The universal interface design allows a single attachment accessory type to serve multiple purposes, reducing the need for specialized components for each function. This maintains reliability through proper mechanical design while reducing overall system 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
This design simplifies the assembly and customization of actuators, reduces production references, and enhances performance by minimizing friction and noise, while ensuring compatibility with various attachment accessories and environments, thus addressing the limitations of prior art.
Implementation Method 1
The bush-bearing is mounted to rotate freely about the head, the fixed piece and the tube
Implementation Method 2
the fixed piece and/or the tube form a bearing surface for rotationally guiding the bush-bearing about the longitudinal axis
Data Source
AI summary
The invention relates to a tubular home-automation actuator for driving a winding tube (310), said actuator comprising a head system (100) including a fixed point (1), a bush bearing (2), and a head (3A; 3B). The fixed point (1) forms a bearing surface (11) for guiding the bush bearing (2) in rotation, said bush bearing (2) partially covering a tube (210) of the tubular home-automation actuator. The head (3A, 3B) comprises a bore (32) having a first connecting element (33) that engages with a second connecting element (13) provided on the outer periphery of the fixed point (1) such as to connect the head and the fixed point in a rotatable manner. The head comprises a stop element (31) serving as an axial stop to the bush bearing along the longitudinal axis when the head is mounted on the fixed point.