Sheet Feeder Roller Holder Detachable Stopper Design
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Solution Overview
Problem
In image forming apparatuses, replacing a damaged roller holder often results in unnecessary replacement of the feed roller, as the existing configuration lacks a cover for the roller holder, leading to inefficient maintenance and potential sheet feeding failures.
Innovation Solution
A sheet feeder design incorporating a detachable roller holder and a holder stopper that can move between restricting and non-restricting positions, allowing individual replacement of the roller holder and holder stopper without affecting the feed roller, thus preventing unnecessary replacement of the feed roller.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If the roller holder is made detachable for easy replacement, then the ease of repair is improved, but the feed roller may be unnecessarily replaced along with the roller holder
Solution Approach 1:
The roller holder assembly is segmented into separate replaceable components: the roller holder body and the feed roller. The roller holder can be detached and replaced independently from the feed roller through the detachable mounting design, allowing selective replacement of only the damaged component rather than the entire assembly.
2Ease of operation
If the roller holder is exposed without a cover for easy access, then the ease of operation is improved, but the roller holder becomes vulnerable to damage
Solution Approach 1:
The cover is designed as a dynamic component that can be opened for maintenance access and closed for protection. The cover mounting structure allows the cover to be attached and detached, providing both protection during operation and easy access during maintenance, transforming a static protective structure into a dynamic one that adapts to operational needs.
Data Source
AI summary
A sheet feeder includes a frame, a roller holder, and a holder stopper. The roller holder includes a feed roller for feeding a sheet. The roller holder is detachably attachable to the frame. The holder stopper is configured to move between a restricting position and a non-restricting position. In a case where the holder stopper is located at the restricting position, the holder stopper restricts the roller holder from moving from an attached position at which the roller holder is fixed to the frame. In a case where the holder stopper is located at the non-restricting position, the holder stopper allows the roller holder to move relative to the frame.