Recording Device Tray Restriction Mechanism
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Solution Overview
Problem
Existing recording devices face issues with unintentional movement of the medium receiving tray when power is not transmitted, leading to potential malfunctions, and high motor load during power transmission, which increases power consumption.
Innovation Solution
A recording device with a power transmission unit that switches between power transmission and non-transmission states, and a restriction unit that restricts tray displacement in non-transmission states to prevent unintended movement, while reducing motor load in transmission states by allowing free movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If power is not transmitted from the motor to the medium receiving tray, then the tray can freely move, but the tray may unintentionally move when the device is tilted
Solution Approach 1:
A restriction unit is introduced as an intermediary component between the power transmission unit and the medium receiving tray. This restriction unit includes a movable member that can be positioned to either restrict or allow tray displacement, serving as a mediator that controls the tray's movement based on power transmission state
2Productivity
If power is transmitted from the motor to the medium receiving tray, then the tray can be displaced controllably, but the motor load increases
Solution Approach 1:
The system dynamically adjusts the power transmission state based on operational requirements. The movable member of the restriction unit can shift position to either engage with or disengage from the power transmission path, allowing the system to transition between high-control mode (when needed) and low-load mode (when free movement is acceptable)
Data Source
AI summary
A recording device includes a recording unit, a discharge roller unit, a medium receiving tray, a motor serving as a power source of the discharge roller, a power transmission unit that is configured to switch between a power transmission state in which power of the motor is transmitted from the motor to the medium receiving tray, and a power non-transmission state in which the power of the motor is not transmitted from the motor to the medium receiving tray, and a restriction unit that is configured to switch between a restriction state in which the restriction unit restricts displacement of the medium receiving tray when the power transmission unit is in the power non-transmission state, and a non-restriction state in which the restriction unit does not restrict the displacement of the medium receiving tray when the power transmission unit is in the power transmission state.