Printer Regulation Device with Spiral Locking Mechanism
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Solution Overview
Problem
Existing printer technologies face challenges in easily setting a rolled sheet as a recording medium, as the current guide support units require manual adjustment and alignment, which can be cumbersome and time-consuming.
Innovation Solution
A regulation device is introduced, comprising a first and second rack gear connected to guide support units, a pinion gear engaging with these rack gears, and a regulation gear with a locked portion that regulates movement by locking steps along a curved spiral line, allowing for easier adjustment and alignment of the rolled sheet.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual adjustment and alignment of guide support units is used, then the rolled sheet can be set in the printer, but the process becomes cumbersome and time-consuming
Solution Approach 1:
The guide support units are designed to move dynamically along the curved spiral line through the rack and pinion mechanism, allowing the rolled sheet to be guided automatically from a rough position to a precise position without manual adjustment, thereby reducing operation time while maintaining ease of use
Solution Approach 2:
The regulation mechanism with curved spiral line and rack-pinion system enables the guide support units to self-adjust and self-align automatically as the rolled sheet is inserted, eliminating the need for user intervention in the alignment process and significantly reducing setup time
2Adaptability or versatility
If guide support units are made movable for adjustment, then the rolled sheet can be accommodated, but the complexity of the device increases
Solution Approach 1:
A curved spiral line is used as the regulation path instead of straight linear adjustments, allowing the guide support units to move along a predetermined curved trajectory. This geometric approach simplifies the mechanism by eliminating the need for complex multi-axis adjustment systems while maintaining full adaptability for different rolled sheet positions
Solution Approach 2:
The rack gear and pinion gear act as intermediary elements that convert simple rotational motion into precise linear movement of the guide support units along the curved spiral line. This intermediary mechanism provides smooth, controlled adjustment without requiring direct manual manipulation of multiple adjustment components
Data Source
AI summary
A regulation device regulates movement in a width direction of a rolled sheet which is a recording medium of a printer. The regulation device includes: a first rack gear connected to one guide support unit supporting the rolled sheet so that movement to one side of the width direction is regulated, and provided to be movable in the width direction; a second rack gear connected to the other guide support unit supporting the rolled sheet so that movement to the other side of the width direction is regulated, and provided to be movable in the width direction; a pinion gear engaging with the first and second rack gears; and a regulation gear that engages with the pinion gear to rotate, includes a locked portion in which a plurality of steps are formed along a curved line forming a part of a spiral wound in a rotation direction of the regulation gear if the first and second rack gears are moved outward in the width direction from a rotation shaft center of the regulation gear toward a diameter outside, and regulates movement of the first and second rack gears by locking the locked portion.