Recording Material Storing Device Detection Mechanism
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Solution Overview
Problem
In recording-material-storing devices, the smoothness of the pressing portion's movement is compromised due to a large angle of inclination of the inclined part when detecting the size of recording materials, leading to reduced movement efficiency.
Innovation Solution
A recording-material-storing device design where the detection object is moved via a relative motion with respect to the pressing portion, utilizing interlocking mechanisms and a moving portion that can move without an inclined part, or with a reduced angle of inclination, to maintain smooth operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If an inclined part with a large angle of inclination is used to move the detection object, then the detection object can be moved effectively, but the smoothness of the pressing portion's movement is reduced
Solution Approach 1:
The patent changes the geometric parameter (angle of inclination) of the inclined part to a specific range (5 degrees or more but less than 45 degrees) to optimize the balance between detection object movement effectiveness and pressing portion movement smoothness. This parameter optimization resolves the contradiction by finding the optimal angle that satisfies both requirements.
2Measurement precision
If the angle of inclination of the inclined part is increased, then the detection object moves more effectively, but the movement efficiency of the pressing portion decreases
Solution Approach 1:
The patent optimizes the angle of inclination parameter to fall within 5-45 degrees, which effectively balances detection object movement effectiveness with pressing portion movement efficiency. This parameter change resolves the contradiction by identifying the optimal angular range that maintains both effectiveness and efficiency.
3Ease of operation
If no inclined part is used to move the detection object, then the pressing portion movement smoothness is maintained, but the detection object cannot be moved effectively
Solution Approach 1:
The patent introduces an inclined part with a specifically controlled angle (5-45 degrees) to enable effective detection object movement while preserving pressing portion movement smoothness. This parameter introduction resolves the contradiction by providing the minimal necessary inclination to achieve detection object movement without excessively compromising pressing portion smoothness.
Data Source
AI summary
A recording-material-storing device includes a detection object whose position is to be detected, a pressing portion that is movable toward and away from a side of a recording material placed in the recording-material-storing device and is to be pressed against the side, and a moving portion that moves the detection object by undergoing a relative motion with respect to the pressing portion when the pressing portion is moved.