Sheet Processing Apparatus One-Way Clutch Driving Force Transmission
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Solution Overview
Problem
Conventional folding processing apparatuses are bulky and costly due to the need for multiple driving mechanisms and complex control systems, which increases initial and running costs.
Innovation Solution
A sheet processing apparatus with a conveyance roller pair, a first normal-reverse rotation roller pair, and a driver that uses a one-way clutch mechanism to transmit driving force in one direction while blocking it in the opposite direction, allowing for efficient and compact folding processing without the need for multiple dedicated motors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple driving mechanisms with dedicated motors are used for each function, then the folding processing can be performed reliably, but the apparatus size increases and the structure becomes complicated
Solution Approach 1:
The patent combines multiple driving mechanisms into a single integrated driving unit. The driving unit includes a drive source and multiple driving force transmitters that can selectively transmit driving force to different conveyance rollers based on operational requirements, thereby reducing the number of separate motors and simplifying the overall apparatus structure while maintaining reliable folding processing functionality.
Solution Approach 2:
The driving unit is designed with multi-functionality, where a single driving source can control multiple conveyance rollers through selectively engageable driving force transmitters. This universal driving mechanism can perform various functions (conveyance, registration correction, bending formation) that previously required separate dedicated motors, thus reducing complexity while preserving reliability.
2Adaptability or versatility
If multiple driving sources are arranged for respective driving mechanisms, then each mechanism can operate independently, but the initial cost and running cost increase
Solution Approach 1:
Multiple driving sources are merged into a single driving source with multiple driving force transmitters. This consolidation reduces the bill of materials and manufacturing complexity while maintaining the ability to operate different mechanisms independently through selective engagement of the transmitters.
Solution Approach 2:
The unified driving unit provides versatile functionality by enabling independent operation of different conveyance mechanisms through selectively engageable transmitters. This multi-functional design reduces the overall system cost while preserving the adaptability and independence needed for various folding operations.
3Device complexity
If a single driving source controls multiple conveyance rollers, then the apparatus becomes compact and simple, but it must selectively transmit driving force to different rollers
Solution Approach 1:
The driving force transmitters act as intermediaries between the single driving source and multiple conveyance rollers. These transmitters selectively transmit or block driving force as needed, enabling efficient control of different rollers without requiring multiple motors. The intermediary mechanism maintains high productivity by ensuring driving force is transmitted only when and where needed.
4Ease of operation
If dedicated motors are used for each conveyance roller, then precise control of each roller is achieved, but the apparatus size increases
Solution Approach 1:
Multiple dedicated motors are merged into a single driving source with selective driving force transmission capability. This consolidation significantly reduces the apparatus footprint by eliminating redundant motor housings and mounting spaces, while precise control of each roller is maintained through the selective engagement mechanism.
Solution Approach 2:
The driving force transmitters serve as intermediaries that enable precise control of individual conveyance rollers without requiring dedicated motors for each. By selectively transmitting driving force to specific rollers, the system achieves the same level of precise control as dedicated motors would provide, but in a more compact configuration.
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 a compact and simple folding processing apparatus that reduces costs and maintains efficient sheet processing, ensuring continuous rotation of the conveyance roller pair in the intended direction without additional dedicated driving motors.
Implementation Method 1
a first driving force transmitter that transmits a driving force of the first driver for rotating the first normal-reverse rotation roller pair in a first specific direction to the conveyance roller pair so as to rotate the conveyance roller pair in the certain direction, and blocks a driving force of the first driver for rotating the first normal-reverse rotation roller pair in the direction opposite to the first specific direction from being transmitted to the conveyance roller pair
Data Source
Figure 1~2
Figure 3
Figure 4
AI summary
A sheet processing apparatus (3) includes a conveyance roller pair (310) that rotates in a certain direction to convey a sheet (6); a first normal-reverse rotation roller pair (350) that is capable of rotating in a normal direction and a reverse direction and rotates to convey the sheet (6); a first driver (351) that drives the first normal-reverse rotation roller pair (350) to rotate; and a first driving force transmitter (313) that transmits a driving force of the first driver (351) for rotating the first normal-reverse rotation roller pair (350) in a first specific direction to the conveyance roller pair (310) so as to rotate the conveyance roller pair (310) in the certain direction, and blocks a driving force of the first driver (351) for rotating the first normal-reverse rotation roller pair (350) in the direction opposite to the first specific direction from being transmitted to the conveyance roller pair (310).