Sheet Post-Processing Apparatus with Integrated Alignment Mechanism
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Solution Overview
Problem
Existing sheet post-processing apparatuses face challenges in aligning sheets correctly during transport to a processing tray, leading to misalignment issues and complexity in maintaining the mechanism within limited space.
Innovation Solution
A sheet guide system comprising a pair of right and left guide members and side edge alignment members that shift in an integral manner using a common drive motor, ensuring proper alignment and simplifying the mechanism for compactness and low-cost configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If separate retract mechanisms are provided for guide members and sheet discharge rollers, then each member can be retracted independently, but the device complexity increases and maintenance space is required
Solution Approach 1:
The patent combines the retract mechanisms for guide members and sheet discharge rollers into a single integrated mechanism. The guide members and sheet discharge rollers are mounted on a common support structure that allows both components to be retracted simultaneously through one control action, eliminating the need for separate retract mechanisms for each component.
Solution Approach 2:
The common support structure serves multiple functions: it supports both guide members and sheet discharge rollers, provides the retract mechanism for both components through a single control input, and eliminates the need for additional maintenance space. This multi-functional design reduces overall device complexity while maintaining operational capability.
2Adaptability or versatility
If multiple separate mechanisms are used for guide members and alignment members, then each can be controlled independently, but the mechanism becomes complex and costly
Solution Approach 1:
The patent merges the control mechanisms for guide members and side edge alignment members into a single integrated system. Both types of members are driven by one motor through a common drive mechanism, allowing them to be controlled independently through coordinated movement while using a single control input, thereby reducing device complexity and cost.
3Device complexity
If guide members and sheet discharge rollers are fixed in position, then the structure is simple, but sheet alignment precision deteriorates
Solution Approach 1:
The patent transitions from a fixed structure to a dynamic structure where guide members and sheet discharge rollers can move and retract as needed. The guide members can shift position to guide sheets accurately, and the sheet discharge rollers can retract to prevent interference, enabling precise sheet alignment while maintaining structural simplicity through controlled movement rather than complex fixed arrangements.
Data Source
AI summary
To provide a post-processing apparatus for preventing a sheet from becoming misaligned in dropping the rear end side of the sheet carried in a processing tray from a sheet discharge path to store on the tray, and enabling the mechanism to be simplified, compact and configured at low cost, a sheet guide that guides a sheet from the sheet discharge path to the processing tray is comprised of a pair of right and left guide members, at the same time in the processing tray are disposed a pair of right and left side edge alignment members, and each guide member and each side edge alignment member are configured to shift to positions in the sheet width direction in an integral manner using a common drive motor.