Roll Paper Loading Device with Transfer Arm
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Solution Overview
Problem
Ink jet type printers and other recording apparatuses face instability issues when loading roll assemblies, leading to potential misalignment and instability during the transfer from a temporary placement portion to a loading portion.
Innovation Solution
A medium loading device with rotatable support units attached to both ends of the roll medium, featuring a contact portion with distinct first and second contact points spaced apart to prevent rotation during transfer, and a sloping transfer path assisted by gravity, along with a shock applier to confirm loading, ensures stable transfer and positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the roll assembly is transferred by rotating on the guide portion surface, then the transfer process can be completed, but the roll assembly becomes unstable
Solution Approach 1:
The patent introduces a transfer arm as an intermediary mechanism between the temporary placement portion and the loading portion. The transfer arm directly transports the roll assembly without requiring it to rotate on the guide portion surface, thereby maintaining stability while completing the transfer process.
Solution Approach 2:
The patent replaces the mechanical rotation-based transfer system with a direct mechanical transport system using the transfer arm. This substitution eliminates the need for the roll assembly to rotate on the guide portion, resolving the instability issue while maintaining transfer functionality.
2Device complexity
If the contact portion has contact points close together, then the structure is compact, but the roll medium rotates during transfer
Solution Approach 1:
The patent positions the first and second contact points at different locations along the transfer path, effectively utilizing the spatial dimension of the transfer direction. This arrangement creates a stable support base for the roll medium while maintaining a compact overall structure.
Solution Approach 2:
The patent applies different functional characteristics to different contact points: the first contact point provides primary support and the second contact point provides secondary support and rotation prevention. This local differentiation of contact point functions enables stable roll medium support without requiring excessive structural complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution enables stable transfer of the roll medium without rotation, ensuring accurate loading and improved user feedback through the applied shock, enhancing the reliability and usability of the medium loading process.
Implementation Method 1
the temporary placement portion may be horizontal, the loading portion may be positioned lower than the temporary placement portion, and the transfer path may slope. In this case, the roll medium with the support units attached thereto may be placed stably on the temporary placement portion, and thereafter, the roll medium with the support units attached thereto may be transferred from the temporary placement portion to the loading portion via the transfer path by gravity.
Data Source
AI summary
A medium loading device includes: a support unit having a shaft member that is attached to each of both end sections of roll paper and a flange member; a loading portion in which the roll paper with the support units attached thereto is loaded; a temporary placement portion on which the roll paper with the support units attached thereto is placed temporarily before being loaded into the loading portion; and a transfer path for transferring the roll paper with the support units attached thereto from the temporary placement portion to the loading portion. The flange member has in a region facing the transfer path a flat surface that is in contact with the transfer path.