Roll Paper Setting Structure with Visual Guide Pieces
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Solution Overview
Problem
Conventional paper roll loading operations are hindered by poor operability due to the difficulty in recognizing the positional relationship between the core tube and retaining members, leading to instability and increased complexity in loading the paper roll.
Innovation Solution
A paper roll setting structure featuring guide pieces and a loading recess on the receiving frame, allowing operators to visually and tactilely identify the position of the setting shaft, facilitating easy and reliable loading by guiding the paper roll into place.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the shaft member is supported by separate support portions of the apparatus main body, then the paper roll can be retained, but the loading operation requires at least two steps (inserting shaft member and fixing to support portions) which degrades operability
Solution Approach 1:
The shaft member and support portions are merged into a single integrated setting shaft structure. The setting shaft includes shaft portions that rotatably support the paper roll and support portions that are integrated with the apparatus main body, eliminating the need for separate assembly steps while maintaining reliable paper roll retention.
2Reliability
If the retaining members are arranged to retain the paper roll, then the paper roll can be held securely, but the retaining members become out of sight due to operator finger, paper roll, and other obstructions making it difficult to recognize positional relationship
Solution Approach 1:
Guide pieces are introduced as intermediary visual indicators. These guide pieces are provided on the receiving frame at positions that are not obscured by the operator's finger or the paper roll during loading. They indicate the correct positional relationship between the core tube and the retaining members, allowing the operator to accurately align components without directly viewing the obscured retaining members.
3Ease of operation
If the guide pieces and loading recess are positioned to facilitate loading, then operability is improved, but the structure becomes more complex
Solution Approach 1:
The receiving frame is segmented into distinct functional elements: guide pieces that provide visual alignment guidance and a loading recess that provides tactile guidance. This segmentation allows each element to perform its specific function independently while maintaining overall structural simplicity and avoiding unnecessary complexity.
Data Source
AI summary
A paper roll setting structure includes a paper roll receiving section (120), a setting shaft structure (130), and a receiving frame (140). The receiving frame (140) includes a shaft position guide (150). The shaft position guide (150) includes a pair of guide pieces (151) and a loading recess (152). The setting shaft structure (130) includes shaft portions (131) so as to rotatably support a paper roll (200). Viewing the positions of the pair of guide pieces (151) enables an operator to recognize the positions of the shaft portions (131). Using the loading recess (152) enables the operator to insert his/her finger in the paper roll receiving section (120) to a deep side (Z2) in a roll loading direction. As a result, the operator can easily and reliably load the roll (200).