Separating Pad Weight Member Vibration Suppression
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Solution Overview
Problem
Existing paper feed apparatuses face challenges in adequately suppressing minute vibrations and associated sounds due to limitations in pressure-sandwiching force, leading to insufficient vibration suppression and potential noise issues.
Innovation Solution
A paper feed apparatus with a support member and a weight member in a loosely-fitted state, where the weight member can move out of synchronization with the support member to attenuate minute vibrations, without reducing frictional resistance or abutting pressure, ensuring effective paper separation and feeding performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the pressure-sandwiching force by the rotation holding portion is enlarged to suppress minute vibration of the separating member, then the vibration suppression should improve, but the ability to hold the support member free rotation is limited and the minute vibration suppression becomes insufficient
Solution Approach 1:
The weight member is separated from the support member structure, allowing independent optimization of vibration suppression and rotation functionality. The weight member acts as a独立的振动抑制元件，通过松动配合方式安装在支持部件上，既能有效抑制分离部的微小振动，又不会影响支持部件对分离部的旋转保持功能
Solution Approach 2:
The weight member functions as a counterweight that suppresses minute vibrations of the separating member through inertial counterbalancing. By positioning the weight member on the support member in a loosely-fitted state, it creates a counteracting force against the vibrations generated during paper feeding, effectively reducing the minute vibrations without requiring increased pressure-sandwiching force
2Stability of the object's composition
If the pressure-sandwiching force is increased to suppress minute vibration, then vibration suppression should improve, but the frictional resistance between paper feeding roller and separating member becomes excessively high when no paper is present
Solution Approach 1:
The weight member serves as a counterweight that suppresses minute vibrations through inertial forces. When the separating member vibrates during paper feeding, the weight member generates opposing inertial forces that cancel out the vibrations, reducing both the vibration amplitude and associated sounds without requiring increased pressure-sandwiching force
Solution Approach 2:
The weight member is installed in a loosely-fitted state, allowing it to dynamically adjust its position and orientation in response to vibrations. This dynamic configuration enables the weight member to effectively counterbalance vibrations while not interfering with the normal friction-based paper separation function between the paper feeding roller and separating member
3Stability of the object's composition
If the pressure-sandwiching force is increased to suppress minute vibration, then vibration suppression should improve, but the abutting pressure of the separating member against the paper feeding roller must be maintained for proper paper separation
Solution Approach 1:
The vibration suppression function is segmented from the paper separation function by using a separate weight member. This allows the abutting pressure between the separating member and paper feeding roller to be maintained at optimal levels for reliable paper separation, while the weight member independently handles vibration suppression without interfering with the paper handling function
Solution Approach 2:
The weight member suppresses minute vibrations through inertial counterbalancing, allowing the pressure-sandwiching force to be optimized for paper separation without being increased solely for vibration suppression. The weight member's inertial forces counteract vibrations while the normal abutting pressure maintains reliable paper separation performance
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 suppresses minute vibrations and accompanying sounds while maintaining paper separation and feeding performance, using a simple structure that includes a weight member attached to the support member in a loosely-fitted state, enhancing noise reduction without compromising paper handling efficiency.
Implementation Method 1
the minute vibration of separating member can be attenuated promptly since the weight member in the loosely-fitted state moves out of synchronization with the support member
Data Source
AI summary
A paper feed apparatus includes a paper feeding roller and a separating pad for separating paper one by one and feeding the paper. This separating pad is supported by a separating pad holder to be abutted onto the paper feeding roller with a predetermined pressure. Furthermore, the separating pad holder is provided with a weight member in a loosely-fitted state.