Pivotable Belt Support Frame for Printer Maintenance

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Solution Overview

Problem

The existing medium transport devices, such as those in printers, require complex procedures to replace the transport belt, which has a short lifespan and high replacement frequency, necessitating the removal of the belt transport section from the frame and release of tension, making the process cumbersome and time-consuming.

Innovation Solution

A medium transport device with a pivotably supported belt unit, where the second frame can detach and attach to the first frame, allowing the transport belt to be removed without detaching the belt unit from the support sections, and a mechanism to weaken the tension by removing a detachable member, facilitating easier replacement and maintenance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of repair

If the transport belt is replaced by removing the belt transport section from the frame, then the transport belt can be replaced, but the replacement process becomes complex and time-consuming

Engineering Contradiction:
Improveease of transport belt replacementVSAvoidcomplexity of replacement procedure
Core Design Contradiction:
Ease of repairVSDevice complexity

Solution Approach 1:

The support structure is divided into a first support section and a second support section, where the second support section can be detached from the first support section. This segmentation allows the transport belt to be accessed and replaced without removing the entire belt transport section from the frame, thereby simplifying the replacement process while maintaining structural integrity during operation.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The second support section is extracted as a separate, detachable component from the first support section. This extraction enables the transport belt to be removed and replaced by simply detaching the second support section, without requiring disassembly of the entire belt transport section or removal from the frame, thus reducing replacement complexity.

Inventive Principle:
Principle #2Taking out (Extraction)

2Ease of repair

If the transport belt is replaced by removing the belt transport section from the frame, then the transport belt can be replaced, but the process requires releasing tension which adds to the complexity

Engineering Contradiction:
Improveease of transport belt replacementVSAvoidtime required for replacement
Core Design Contradiction:
Ease of repairVSLoss of time

Solution Approach 1:

By segmenting the support structure into detachable first and second support sections, the design allows rapid access to the transport belt without requiring time-consuming tension release procedures. The second support section can be quickly detached to access and replace the belt, then reattached to restore tension, significantly reducing replacement time.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The second support section is designed with pre-configured attachment and detachment mechanisms that allow quick access to the transport belt. This preliminary design of the detachable structure enables operators to quickly remove and replace the belt without spending time on complex tension release and frame removal procedures.

Inventive Principle:
Principle #10Preliminary action

3Ease of manufacture

If the second frame is positioned inside the first frame, then the structure is compact, but the transport belt cannot be easily accessed for replacement

Engineering Contradiction:
Improveease of transport belt accessVSAvoidspace occupied by support structure
Core Design Contradiction:
Ease of manufactureVSVolume of moving object

Solution Approach 1:

The support structure transitions from a fixed nested configuration to a dynamic, detachable configuration. The second support section can be detached from the first support section to provide access to the transport belt for replacement, then reattached to restore the compact nested structure. This dynamic design allows the structure to adapt between operational compactness and maintenance accessibility.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

By segmenting the support structure into detachable first and second support sections, the design allows the second frame to be positioned outside the first frame during maintenance to facilitate belt access, then repositioned inside to achieve compactness during operation. This segmentation enables flexible spatial arrangement based on operational needs.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS20230399186A1Medium transport device and recording device
Publication Date: 2023.12.14 SEIKO EPSON CORP
  • US20230399186A1 patent drawing
  • US20230399186A1 patent drawing
  • US20230399186A1 patent drawing

AI summary

A medium transport device includes a belt unit and a first support section and a second support section configured to pivotably support the belt unit, wherein the first support section includes a first frame and a second frame that is a flame configured to detach from and attach to the first frame, and configured to pivotably support the belt unit and a direction in the width direction from a the center of a transport belt toward the first support section is an outer direction, the second frame is positioned in the outer direction with respect to the first frame.