Operation Element With Dilatant Fluid Interposed Body
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Solution Overview
Problem
Conventional operation devices lack the ability to differentiate operation properties and feelings based on pressing force, as they typically use a configuration where the operation body and detection body respond similarly regardless of the pressing force applied.
Innovation Solution
The operation element incorporates an interposed body with a dilatant fluid enclosed in an enclosing body, which behaves like a solid for rapid deformation and a fluid for gradual deformation, allowing the operation body to transmit pressing forces differently to the detection body, thereby varying the operation feeling and properties based on the pressing speed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional configuration with operation body and detection body is used, then the structure is simple, but operation properties and operation feeling are the same even when pressing force is changed
Solution Approach 1:
A dilatant fluid is introduced as an intermediary substance between the operation body and detection body. This fluid transmits pressing forces from the operation body to the detection body, enabling the detection body to sense different pressing forces and generate differentiated operation properties while maintaining a relatively simple overall structure.
Solution Approach 2:
The dilatant fluid changes its physical parameters (viscosity, flow characteristics) in response to applied stress. When pressing force is applied to the operation body, the fluid's parameters change dynamically, allowing the system to differentiate between various pressing forces and produce corresponding operation property variations.
2Adaptability or versatility
If additional biasing members are added to differentiate operation feeling, then operation properties can be varied, but device complexity and thickness increase
Solution Approach 1:
The patent employs a hydraulic principle by using a dilatant fluid to transmit and modulate pressing forces. This fluid-based approach eliminates the need for mechanical biasing members such as springs, thereby reducing device thickness and structural complexity while still achieving operation feeling differentiation through the fluid's stress-responsive properties.
Solution Approach 2:
The dilatant fluid's physical parameters change in response to applied stress, providing operation feeling differentiation without requiring additional mechanical components. This parameter-based approach allows the system to vary operation properties while maintaining a compact structure.
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 configuration enables the operation element to transmit pressing forces effectively, providing distinct operation feelings and properties depending on the speed of pressing, enhancing operability and reducing the need for additional biasing members, thus simplifying the design and reducing the thickness of the operation device.
Implementation Method 1
The interposed body has an enclosing body in which a dilatant fluid is enclosed
Implementation Method 2
a dilatant fluid is enclosed and the enclosing body has flexibility
Data Source
AI summary
An operation element has an operation body displaced according to pressing operation, a detection body that is pressed according to displacement of the operation body and detects the displacement of this operation body, and an interposed body interposed between the operation body and the detection body. Of these, the interposed body has an enclosing body in which a dilatant fluid is enclosed. The enclosing body has flexibility.