Button Mechanism Resilient Arm Segmentation
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Solution Overview
Problem
Existing button mechanisms suffer from structural defects, such as difficult manufacturing and resilience loss over time, leading to a weak structure and inadequate touching feel, which affects their reliability and user experience in electronic devices.
Innovation Solution
A button mechanism design featuring a base with an accommodating slot and guiding pillars, a button with a pressing portion and supporting portions, and resilient components that store recovering force to enhance structural strength and tactile feedback, replacing the conventional thin-curved resilient arm with an erect supporting portion and compressive spring or annular rubber for uniform resilience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a Z-shaped resilient arm is used in the button mechanism, then the button can be pressed and released, but the structure forms defects easily due to difficult manufacturing and is prone to unexpected resilient deformation
Solution Approach 1:
The resilient arm is divided into multiple straight segments (first resilient segment, second resilient segment, third resilient segment) connected at defined angles, replacing the complex Z-shaped curved structure. This segmentation simplifies manufacturing while maintaining the pressing and releasing function, and reduces structural defects.
Solution Approach 2:
The resilient arm's geometry is changed from a Z-shaped curved structure to multiple straight segments with specific angle relationships (e.g., 90 degrees between first and second segments, 45 degrees between second and third segments). This parameter change simplifies manufacturing processes and reduces deformation while preserving functionality.
2Volume of moving object
If the resilient arm is designed as a thin-typed structure to fit small structural space, then the button mechanism can be compact, but the resilient arm is easily broken or loses resilient recovering force after long-period operation
Solution Approach 1:
Different segments of the resilient arm have different thickness specifications optimized for their local functions. The first resilient segment has a first thickness, the second resilient segment has a second thickness, and the third resilient segment has a third thickness. This local quality differentiation allows compact design while maintaining sufficient strength and resilient force where needed.
Solution Approach 2:
The resilient arm is constructed as a composite structure with multiple segments of potentially different materials or treatments, where each segment's properties are optimized for its specific role. This composite approach enables the structure to be both compact and durable, preventing breakage and loss of resilient force over time.
3Ease of operation
If the resilient arm has a complex Z-shaped structure, then the button mechanism can provide pressing function, but the structure is difficult to manufacture with consistent quality
Solution Approach 1:
The resilient arm is segmented into straight portions (first, second, and third resilient segments) with defined geometric relationships, replacing the difficult-to-manufacture Z-shaped curved structure. This segmentation allows for simpler fabrication processes while maintaining the button pressing function.
Solution Approach 2:
The geometric parameters of the resilient arm are standardized into specific angle relationships (90 degrees, 45 degrees) and thickness specifications, making the structure easier to manufacture with consistent quality while preserving the pressing function.
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 new design improves structural stability, prevents deformation, and provides a stable and enhanced touching feel, increasing product yield and market competitiveness by simplifying manufacturing and ensuring consistent resilient performance.
Implementation Method 1
The resilient component stores a resilient recovering force when the supporting portion slides relative to the guiding pillar at a predetermined direction to compress the resilient component, and the resilient recovering force drives the supporting portion to slide relative to the guiding pillar at a direction opposite to the predetermined direction
Data Source
AI summary
A button mechanism includes a base, a button and two resilient components. The base includes an accommodating slot structure and two guiding pillars, the pillars are disposed by sides of the accommodating slot structure. The button includes a pressing portion and two supporting portions. The pressing portion is movably disposed inside the accommodating slot structure. The supporting portions are respectively disposed by opposite sides of the pressing portion. A first end of the supporting portion is connected to the pressing portion, and a second end of the supporting portion is slidably disposed on the guiding pillar. Two ends of the resilient component respectively contact against an optical disk driver and the supporting portion. The supporting portion slides relative to the guiding pillar to compress the resilient component, and a resilient recovering force of the resilient component drives the supporting portion to slide relative to the guiding pillar inversely.