Shared Drive Train for Recording Media Transport Rollers
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Solution Overview
Problem
Existing recording apparatuses with multiple driving rollers for medium transport suffer from variations in rotational speed relationships, leading to potential transport failures, especially when auxiliary rollers are used to assist in medium transport.
Innovation Solution
A recording apparatus design where the auxiliary and transport rollers are driven by a common motor via a shared drive train, reducing variations in rotational speed and minimizing transport failures, while also reducing the number of motors and apparatus size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple motors are used to drive multiple driving rollers, then the transport capability is improved, but the rotational speed relationship between rollers varies causing transport failure
Solution Approach 1:
The patent merges multiple motor functions into a single motor by using one motor to drive multiple driving rollers through a shared drive train mechanism. This consolidation maintains the transport capability of multiple rollers while eliminating the rotational speed variations that occur when each roller is driven by a separate motor, thus preventing transport failure.
Solution Approach 2:
The single motor is designed to perform multiple functions by driving different driving rollers through the drive train. This universal motor configuration allows one motor to replace what would traditionally require multiple motors, maintaining system functionality while ensuring consistent rotational speed relationships across all driven rollers.
2Reliability
If auxiliary roller is added to assist in medium transport, then transport failure is suppressed, but the rotational speed relationship between auxiliary roller and other rollers varies reducing effectiveness
Solution Approach 1:
The auxiliary roller is integrated into the same drive train system as the other driving rollers, allowing it to be driven by the same motor through mechanical transmission. This merging ensures that the auxiliary roller maintains a consistent rotational speed relationship with other rollers, maximizing its effectiveness in suppressing transport failure without creating speed synchronization issues.
3Volume of stationary object
If single motor drives multiple rollers through drive train, then apparatus size is reduced, but the drive train complexity increases
Solution Approach 1:
The drive train acts as an intermediary mechanical transmission system that connects the single motor to multiple driving rollers. While this adds some structural complexity, it enables the space-saving benefit of using one motor instead of multiple motors, ultimately reducing the overall apparatus volume by eliminating the need for multiple motor assemblies and their associated mounting structures.
Data Source
AI summary
A recording apparatus includes a recording head that performs recording; a feeding roller that feeds out a medium that has been set, a transport roller that transports the medium fed out by the feeding roller toward a facing position facing the recording head; an auxiliary roller that is provided between the feeding roller and the transport roller and that assists in the transport of the medium; a motor that generates a driving force; and a drive train that is configured to transmit the driving force of the motor to the auxiliary roller and the transport roller.