Compact Media Receiving Unit Using Wound Sheet and Rotating Shaft
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Solution Overview
Problem
Conventional recording devices with basket-shaped stackers face challenges in miniaturization due to their horizontal sliding and storage configuration, making it difficult to reduce device size.
Innovation Solution
A processing device with a medium receiving unit that includes a sheet-shaped receiving member, a rotating shaft, and an operating portion, where the receiving member is wound around the shaft and fed out to accommodate discharged media, allowing for a compact design by utilizing a speed increasing mechanism and contact/auxiliary rollers to manage the receiving member's movement and prevent idling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If a basket-shaped stacker is used to receive discharged media, then the media can be accumulated and stored, but the device size increases making miniaturization difficult
Solution Approach 1:
The sheet-shaped receiving member is wound around the rotating shaft in a nested configuration, allowing the media storage component to be compactly contained within the device housing. When not in use, the receiving member occupies minimal space by being coiled around the shaft, similar to a nested doll structure where one object is placed inside another.
Solution Approach 2:
The receiving member transitions from a static basket-shaped structure to a dynamic, movable sheet that can be fed out and retracted. The rotating shaft enables the receiving member to dynamically adjust its position and length based on media accumulation needs, allowing compact storage when empty and expanded capacity when media is present.
2Quantity of substance
If the receiving member is fed out to receive media, then media can be accumulated, but the receiving member may idle or unwind uncontrollably
Solution Approach 1:
The contact roller and auxiliary roller create a feedback mechanism that monitors the tension and position of the receiving member. When the receiving member is fed out, the rollers detect changes in tension and position, providing feedback that prevents over-fed conditions and ensures controlled media accumulation without uncontrolled idling or unwinding.
Solution Approach 2:
The contact roller and auxiliary roller act as intermediary components between the rotating shaft and the receiving member. These rollers mediate the interaction by providing controlled contact points that guide the receiving member's movement, preventing direct uncontrolled unwinding while enabling smooth media feeding and accumulation.
3Volume of moving object
If the device is miniaturized with a compact receiving unit, then device size is reduced, but space for receiving member movement is limited
Solution Approach 1:
The receiving member is configured to move in multiple dimensions rather than a single linear path. It can be fed out radially from the rotating shaft, moved vertically to receive media, and retracted along a multi-dimensional trajectory. This dimensional flexibility allows adequate movement range within a compact device footprint.
Solution Approach 2:
The sheet-shaped receiving member utilizes a flexible thin film structure that can bend, fold, and conform to limited spaces. This flexibility allows the receiving member to navigate through tight spaces within the miniaturized device, enabling adequate feeding and retraction movements without requiring large clearance volumes.
Data Source
AI summary
A recording device as a processing device includes: a recording unit accommodated in a housing and configured to perform recording on a medium; and a medium accommodating unit that accommodates the medium discharged from the housing. The medium accommodating unit includes: a sheet-shaped accommodating member; a rotating shaft provided inside the housing and to which one end of the accommodating member is connected; and an operating portion provided separably from the housing and to which the other end of the accommodating member is connected. The accommodating member is wound around the rotating shaft and accommodated inside the housing when the operating portion is mounted on the housing. The accommodating member is fed from the rotating shaft so that the medium is accommodated when the operating portion is separated from the housing.