Medium Conveyance Rollers With Manual Jam-Sync Switching
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Solution Overview
Problem
Medium conveyance devices with multiple rotating bodies driven by different sources face challenges in synchronizing rotation to remove jams, leading to difficulties in conveying media downstream due to asynchronous operation.
Innovation Solution
A medium conveyance device with a switching mechanism allowing manual operation of rotating bodies via an input section, enabling independent rotation control of each body through a switching section with one-way clutches, ensuring synchronized operation when needed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If rotating bodies are driven by different drive sources to diversify conveyance control, then conveyance control flexibility is improved, but synchronization difficulty increases making jam removal hard
Solution Approach 1:
The patent combines multiple drive sources (first drive source for first rotating body, second drive source for second rotating body) into a unified manual operation system. The operation section integrates switching sections that allow a single manual operation to simultaneously control both drive sources, merging their functions for coordinated jam removal while preserving individual control flexibility during normal operation.
Solution Approach 2:
The operation section is designed with multi-functionality to handle both normal conveyance control and jam removal operations. The switching sections enable the operation section to universally control either the first drive source, the second drive source, or both simultaneously, making a single component serve multiple operational purposes.
2Ease of operation
If only one rotating body is rotated to remove jam, then operation simplicity is improved, but conveyance effectiveness deteriorates due to asynchronous rotation
Solution Approach 1:
The switching section dynamically changes the connection state between the operation section and drive sources based on operational needs. During normal operation, only the active drive source is connected. During jam removal, the switching section dynamically connects both drive sources to the operation section, enabling synchronized rotation of both rotating bodies through a single manual operation.
3Speed
If manual operation section is always connected to drive sections, then operation responsiveness is improved, but mechanical load increases during automated operation
Solution Approach 1:
The switching section is pre-configured to automatically change connection states based on operational mode. Before automated operation begins, the switching section disconnects the operation section from the drive sections. Before manual operation begins, the switching section connects the operation section to the appropriate drive section, preparing the system in advance for the upcoming operation type.
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
Facilitates easy removal of jams by allowing manual synchronization of rotating bodies, preventing unintended medium movement and reducing mechanical load, thus enhancing jam clearance efficiency.
Implementation Method 1
The switching section includes a first switching section coupled to the first drive section and a second switching section coupled to the second drive section, and the switching section takes the disconnected state when the driving force is input from the first drive source or the second drive source
Data Source
AI summary
A medium conveyance device includes first rotating bodies, second rotating bodies, a first drive section, a second drive section, and an operation section coupled to the first drive section and the second drive section. The first and the second rotating bodies are able to be manually operated with the operation section. The operation section includes an input section to which an operation force can be manually input and a switching section capable of switching a transmission state and a disconnected state. The switching section includes a first and second switching sections coupled to, respectfully, first and second drive sections. The switching section takes the disconnected state when a driving force is input from the first or second drive source and takes the transmission state when the driving force is not input from the first or the second drive source and an operation force is input to the input section.