Pressure Switching Mechanism With Slide Aid and Vibration Isolation
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Solution Overview
Problem
Existing image forming apparatuses face challenges in efficiently switching between pressing and pressure decrease states in components like fixing devices, leading to inefficiencies and potential damage due to inconsistent pressure application.
Innovation Solution
A pressure switching device with a fulcrum and switch mechanism that pivots between pressing and pressure decrease states, incorporating a slide aid and vibration isolating member to manage pressure transitions smoothly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a pressure switching device is used to switch between pressing and pressure decrease states, then operational efficiency is improved, but mechanical stress and potential damage to components may occur due to inconsistent pressure application
Solution Approach 1:
The vibration isolating member is installed in advance between the slide aid and the operation member to cushion and absorb shock during pressure switching operations. This preventive measure reduces mechanical stress on components before damage can occur, thereby improving component durability while maintaining operational efficiency
2Ease of operation
If a slide aid is mounted on the operation member to reduce friction, then ease of operation is improved, but vibration and mechanical stress may increase
Solution Approach 1:
The vibration isolating member is introduced as an intermediary element between the slide aid and the operation member. It serves as a mediator that reduces vibration and shock transmission while allowing the slide aid to continue reducing friction, thus maintaining ease of operation while eliminating harmful vibrations
3Duration of action of stationary object
If the slide aid has high hardness to reduce wear, then durability is improved, but vibration isolation capability may decrease
Solution Approach 1:
The system is segmented into two distinct functional components: the slide aid (made of hard material like PTFE) that reduces friction and wear, and the vibration isolating member (made of soft elastic material) that absorbs vibration. This segmentation allows each component to optimize its specific function without compromising the other
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
Enhances operational efficiency and reduces mechanical stress on components by ensuring precise control over pressure application, improving the reliability and longevity of the image forming apparatus.
Implementation Method 1
a vibration isolating member that is interposed between the slide aid and the another one of the switch and the operation member
Implementation Method 2
The slide aid has a hardness that is greater than a hardness of the vibration isolating member
Data Source
AI summary
A pressure switching device includes a switch that switches between a pressing state in which a first opposed member presses against a second opposed member with predetermined pressure and a pressure decrease state in which the first opposed member is disposed opposite the second opposed member with no pressure or decreased pressure smaller than the predetermined pressure. A slide aid contacts one of the switch and an operation member as the operation member moves toward the switch. The slide aid is mounted on another one of the switch and the operation member. A vibration isolating member is interposed between the slide aid and the another one of the switch and the operation member. The slide aid has a hardness that is greater than a hardness of the vibration isolating member.