Sheet Conveyance Path Switching for Thick and Hard Media

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Solution Overview

Problem

Existing conveyance devices struggle to handle sheets with varying specifications, particularly those with different thicknesses and weights, often leading to inefficiencies and limitations in conveying and reading images on both sides of the sheets.

Innovation Solution

A conveyance device with a modular design featuring detachable conveyance guides and rollers that can be adjusted to accommodate sheets of varying thickness and weight, allowing for both linear and folded paths, and equipped with dual image reading capabilities to handle sheets with images on both sides.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a fixed conveyance path is used, then the device structure is simple, but it cannot handle sheets with varying thickness and weight

Engineering Contradiction:

Improvecapability to handle different sheet specificationsVSAvoidconveyance path configuration

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The conveyance path is divided into multiple segments including a linear conveyance path and a folded conveyance path with branching points. This segmentation allows the system to selectively route sheets through different path configurations based on sheet specifications, enabling adaptability without requiring a completely different device structure for each sheet type.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The conveyance device incorporates adjustable conveyance guides and rollers that can be repositioned or replaced based on sheet thickness and weight requirements. The branching mechanism dynamically selects between linear and folded paths, transforming a static conveyance system into a dynamic one that adapts to varying sheet specifications.

Inventive Principle:

Principle #15Dynamics

2Productivity

If manual intervention is required for hard sheets, then conveyance accuracy improves, but productivity decreases

Engineering Contradiction:

Improveautomatic conveyance capabilityVSAvoidconveyance reliability for hard sheets

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The device adjusts conveyance parameters such as roller pressure, guide positioning, and path selection based on detected sheet specifications (thickness, weight, hardness). By automatically modifying these parameters, the system maintains reliable conveyance of hard sheets like business cards and postcards without requiring manual intervention, thus preserving both productivity and reliability.

Inventive Principle:

Principle #35Parameter changes

3Ease of repair

If conveyance guides are fixed, then device structure is simple, but maintenance difficulty increases

Engineering Contradiction:

Improveconveyance guide replacementVSAvoidmodular structure

Core Design Contradiction:

Ease of repairVSDevice complexity

Solution Approach 1:

Conveyance guides and rollers are designed as separate, modular components rather than integrated fixed structures. This segmentation allows individual guides to be easily removed and replaced without disassembling the entire device, significantly improving maintenance ease while the modular architecture maintains acceptable device complexity.

Inventive Principle:

Principle #1Segmentation

4Adaptability or versatility

If a single conveyance path is used, then device structure is simple, but adaptability to different sheet types decreases

Engineering Contradiction:

Improvesheet type handling capabilityVSAvoidconveyance path structure

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The conveyance device incorporates a universal conveyance system with branching points that can route sheets through either a linear path or a folded path with bending. This multi-functional design allows a single device structure to handle various sheet types (flexible papers, hard cards, different sizes) by selecting the appropriate path configuration, achieving adaptability without proportionally increasing device complexity.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS12606403B2Conveyance device that conveys sheets with different specifications

Publication Date: 2026.04.21 KYOCERA DOCUMENT SOLUTIONS INC

AI summary

A conveyance device includes a supply tray, a body, a linear conveyance path, a folded conveyance path, and a straight path discharge portion. The supply tray supplies a sheet. The sheet is supplied to the body from the supply tray. The linear conveyance path is provided in the supply tray and the body. The folded conveyance path branches to one side from the linear conveyance path. The straight path discharge portion branches to the other side from the linear conveyance path and conveys and discharges the sheet from the linear conveyance path through a straight path. The straight path discharge portion includes a conveyance guide that guides movement of the sheet conveyed by the straight path discharge portion. The conveyance guide is detachable from the body.