Movable Heating Unit Guide Mechanism for Sheet Processing

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Solution Overview

Problem

Existing sheet processing apparatuses with heating mechanisms for fixing and erasing visualized images with color materials face challenges in efficiently guiding and replacing the heating units, leading to difficulties in maintaining precise temperature control and safe handling during replacement processes.

Innovation Solution

The apparatus incorporates a guide mechanism with a first and second guide unit, including an abutment section, to support and stop the heating unit at a predetermined position, and a rail system that allows the heating unit to be easily moved and replaced, reducing the weight felt by the operator and preventing sudden falls.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If a heating mechanism with heat roller and press roller is used for fixing and erasing visualized images, then the temperature control and image processing capability is improved, but the complexity of guiding and replacing the heating unit increases

Engineering Contradiction:

Improvetemperature controlVSAvoidguiding and replacing mechanism

Core Design Contradiction:

TemperatureVSDevice complexity

Solution Approach 1:

The heating unit is designed to be movable rather than fixed, allowing it to be easily removed and replaced. The guide units provide dynamic guidance during the movement process, ensuring the heating unit can be smoothly inserted and positioned while maintaining temperature control functionality.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

Guide units are introduced as intermediary components between the heating unit and the apparatus housing. These guide units facilitate the movement and positioning of the heating unit, simplifying the replacement process while maintaining precise temperature control through proper alignment.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Ease of operation

If the heating unit is made movable for easy replacement, then the ease of operation is improved, but the risk of sudden falls and safety hazards increases

Engineering Contradiction:

Improveheating unit replacementVSAvoidsafety hazards during replacement

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The guide units are designed with cushioning or damping features that prevent sudden falls of the heating unit during replacement. The abutment sections provide gradual stopping rather than abrupt impacts, reducing safety hazards while maintaining ease of operation.

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

Solution Approach 2:

Guide units act as intermediary safety mechanisms that control the movement of the heating unit. They provide guided pathways and controlled stopping points, preventing uncontrolled falls while allowing easy replacement by operators.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Manufacturing precision

If guide units with abutment sections are added to stop the heating unit, then the positioning precision is improved, but the device complexity increases

Engineering Contradiction:

Improveheating unit positioningVSAvoidguide mechanism structure

Core Design Contradiction:

Manufacturing precisionVSDevice complexity

Solution Approach 1:

The guide mechanism is segmented into multiple guide units, each with specific abutment sections for different positioning requirements. This segmentation allows precise positioning through modular components rather than a single complex mechanism, making the system easier to manufacture and maintain.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The abutment sections are designed to automatically stop the heating unit at the correct position through mechanical contact, eliminating the need for complex electronic positioning systems. The heating unit itself engages with the abutment sections to achieve precise positioning.

Inventive Principle:

Principle #25Self-service

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

This solution enhances the safety and ease of replacing the heating units, maintaining precise temperature control and improving the overall efficiency of the sheet processing apparatus by ensuring smooth and secure movement of the heating units.

Implementation Method 1

a heating unit configured to heat a sheet when the sheet is conveyed between a pair of rollers

Methodology Applied

Scientific EffectHeating: Heating

Data Source

PatentUS9110437B2Sheet processing apparatus with movable heating unit

Publication Date: 2015.08.18 KK TOSHIBA

AI summary

A sheet processing apparatus comprises a heating unit configured to heat a sheet when the sheet is conveyed between a pair of rollers, a first guide unit that supports and guides movement of the heating unit in a first direction towards a predetermined position exterior to the sheet processing apparatus, and a second guide unit that supports and guides further movement of the heating unit in the first direction in cooperation with the first guide unit, the second guide unit including an abutment section configured to stop movement of the heating unit in the first direction when the heating unit reaches the predetermined position.