Printing Device Abutting Part for Impact Protection

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Solution Overview

Problem

Conventional portable printing devices are prone to accidental drops when attaching or detaching from a belt, which can cause the cover to open due to impact, potentially leading to damage or disruption of printing operations.

Innovation Solution

The printing device incorporates a design with a first and second frame member, an engaging member, and abutting parts to prevent the cover from opening during impacts, where the engaging member is supported by the frame members to maintain the cover in a closed state by avoiding direct contact and using abutting parts to absorb deformation forces.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the printing device is made portable and attachable to a belt, then the ease of operation is improved, but the reliability deteriorates due to accidental drops causing cover opening

Engineering Contradiction:

ImproveportabilityVSAvoidcover closure stability

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The abutting part is positioned to preemptively absorb impact forces before they can reach the engaging member. When the device is dropped, the abutting part contacts the second frame member first, cushioning the blow and preventing the engaging member from disengaging from the cover.

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

Solution Approach 2:

The abutting part acts as an intermediary element between the second frame member and the engaging member. It intercepts and absorbs the impact force, preventing direct transmission to the engaging member that would otherwise cause cover opening.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If the engaging member is positioned to engage the cover, then the cover closure is maintained, but the harmful factor increases when impact causes direct contact between the engaging member and second frame member

Engineering Contradiction:

Improvecover engagementVSAvoidimpact damage

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The abutting part serves as a protective intermediary that intercepts impact forces before they can harm the engaging member. It absorbs the shock of impact, preventing the harmful direct contact between the engaging member and second frame member that would cause cover opening.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The abutting part is strategically positioned to cushion impact forces before they reach the engaging member, protecting it from damage and preventing unintended cover opening during drops or shocks.

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

Data Source

PatentUS10131159B2Printing device provided with abutting part for suppressing cover from opening due to impact from fall

Publication Date: 2018.11.20 BROTHER KOGYO KK

AI summary

A printing device includes: a printing mechanism; a housing having a casing and a cover; a first frame member; a second frame member; an engaging member; and an abutting part. The first frame member supports the printing mechanism. The second frame member supports the printing medium. The second frame member is juxtaposed with the first frame member in a first direction. The engaging member is supported to the first frame member. The engaging member is movable between a first position in engagement with the cover and a second position out of engagement with the cover. The abutting part is provided at at least one of the first frame member and the second frame member. The abutting part avoids direct contact between the engaging member in the first position and the second frame member when the second frame member is deformed and contacts the first frame member through the abutting part.