Operation Input Structure With Elastic Stop for Collision Noise
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Solution Overview
Problem
Existing operation devices do not have a configuration to absorb collision noise when the moving body and support portion are brought into contact with each other.
Innovation Solution
Incorporation of elastic and rigid contact portions on the support and moving body, where the elastic region is initially brought into contact to absorb impact, followed by the rigid region to regulate movement, reducing collision noise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the moving body and support portion are brought into contact to regulate movement, then movement regulation is achieved, but collision noise is generated
Solution Approach 1:
The patent applies beforehand cushioning by providing an elastic region on the contact portion of the moving body that deforms elastically before and during contact with the support portion. This elastic deformation absorbs collision energy and reduces impact noise before the rigid regions come into contact, thereby achieving movement regulation while minimizing harmful collision noise.
Solution Approach 2:
The patent changes the physical parameters of the contact portion by creating a composite structure with both elastic and rigid regions. The elastic region provides compliance and shock absorption, while the rigid region ensures precise movement regulation. This parameter change from uniform rigid contact to composite elastic-rigid contact resolves the contradiction between movement regulation and noise reduction.
2Manufacturing precision
If rigid contact portions are used to regulate movement, then movement precision is improved, but collision noise increases
Solution Approach 1:
The patent segments the contact portion into distinct elastic and rigid regions. The elastic region handles shock absorption and noise reduction, while the rigid region provides precise movement regulation. This segmentation allows each region to perform its specialized function, achieving both movement precision and noise reduction simultaneously.
Solution Approach 2:
The contact portion is designed as a composite structure combining elastic and rigid materials or regions within a single component. This composite approach allows the elastic region to absorb impact energy and reduce noise while the rigid region maintains manufacturing precision and movement regulation accuracy.
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 effectively absorbs collision noise and reliably regulates the movement of the moving body, enhancing operational sensation and reducing noise generation in all directional movements.
Implementation Method 1
The contact portion of one of the support portion and the moving body has an elastic region that is first brought into contact with the contact portion of the other
Data Source
AI summary
An operation device includes a support portion, a moving body operated by an operator and movably supported by the support portion, a detection unit that detects movement of the moving body, and contact portions respectively provided on the support portion and the moving body and brought into contact with each other. The contact portion of one of the support portion and the moving body has an elastic region that is first brought into contact with the contact portion of the other when the contact portions are brought into contact with each other and a rigid region provided adjacent to the elastic region and continuously brought into contact with the contact portion of the other following the contact of the elastic region to regulate the movement of the moving body.