Printer Cover Contact Structure to Protect Side Operation Panels

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Solution Overview

Problem

Printing devices with side-by-side opening and closing covers and operation panels are prone to twisting, leading to potential damage of the operation panel due to contact when the cover is opened or closed, especially when the covers are large for ease of maintenance.

Innovation Solution

The printing device incorporates a contact section on the inner surface of the opening and closing cover that displaces it away from the operation panel by contacting a part of the housing when closed, preventing contact and twisting.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the opening and closing cover is increased in size for ease of maintenance work, then maintenance efficiency is improved, but the cover is more likely to twist and contact the operation panel causing damage

Engineering Contradiction:
Improvemaintenance efficiencyVSAvoidrisk of operation panel damage
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

A contact section is introduced as an intermediary component between the opening/closing cover and the housing. This contact section acts as a mediator that transfers the closing force from the cover to the housing, ensuring proper positioning and preventing the cover from contacting the operation panel. The intermediary structure resolves the contradiction by enabling the cover to be large enough for maintenance while preventing damage through the mediating contact mechanism.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The contact section is designed to engage with the housing before the opening/closing cover can contact the operation panel. By establishing contact preliminarily with the housing, the cover's position is predetermined and controlled, preventing harmful contact with the operation panel. This preliminary action ensures that the cover is properly positioned before any potential contact with sensitive components occurs.

Inventive Principle:
Principle #10Preliminary action

2Ease of operation

If the opening and closing cover is made larger to provide better access, then ease of maintenance is improved, but twisting of the cover is more likely to occur

Engineering Contradiction:
Improveease of maintenanceVSAvoidcover stability
Core Design Contradiction:
Ease of operationVSStability of the object's composition

Solution Approach 1:

The contact section serves as a stabilizing intermediary between the large opening/closing cover and the housing. By providing a dedicated contact point on the housing, the mediator prevents the cover from twisting during operation. The contact section transfers and distributes the forces acting on the cover, maintaining its structural stability despite the cover's large size.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Adaptability or versatility

If the opening and closing cover and operation panel are provided side by side, then device functionality is improved, but the cover may contact and damage the operation panel when opened or closed

Engineering Contradiction:
Improvedevice functionalityVSAvoidcontact damage to operation panel
Core Design Contradiction:
Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The contact section is positioned as a spatial intermediary between the opening/closing cover and the operation panel. When the cover is closed, the contact section engages with the housing first, creating a physical barrier that prevents the cover from contacting the operation panel. This intermediary arrangement allows both the cover and operation panel to be positioned side by side while eliminating the harmful contact effect.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The contact section applies a preliminary counteracting force to prevent the harmful contact between the cover and operation panel. By engaging with the housing in advance, the contact section creates a counter-force that opposes any potential contact between the cover and the operation panel, thereby preventing damage before it can occur.

Inventive Principle:
Principle #9Preliminary anti-action

Data Source

PatentUS20260061764A1Printing device
Publication Date: 2026.03.05 SEIKO EPSON CORP
  • US20260061764A1 patent drawing
  • US20260061764A1 patent drawing
  • US20260061764A1 patent drawing

AI summary

A printing device 1 includes a printing section 5 configured to print on a medium; a housing 100 that configured to house the printing section 5; an opening and closing cover 200 configured to open and close a part of the housing 100; and an operation panel 300 provided side by side with the opening and closing cover 200 in an alignment direction in a state where the opening and closing cover 200 is closed, wherein the opening and closing cover 200 has a first wall 201 having a pivot shaft 203 extending in the alignment direction and being a part of a wall 100A on the first direction side of the housing 100, and a second wall 202 that is a part of a wall 100B on the second direction side of the housing 100 and a contact section 210 is provided on an inner surface of the second wall 202 of the opening and closing cover 200, and is configured to contact the contacted section 110 when the opening and closing cover 200 is closed, thereby displacing the opening and closing cover 200 separates from the operation panel 300.