Ink Pack Detachable Fixation for Selective Component Reuse

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Solution Overview

Problem

Existing liquid container manufacturing methods require welding the bag and liquid derivation member together, leading to the discarding of both when one component is non-reusable, hindering sustainable reuse.

Innovation Solution

A detachable design for the bag body and derivation member, along with a fixation unit, allows for individual component replacement and reuse, enhancing sustainability by enabling the recycling of multiple parts.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the bag and liquid derivation member are welded together, then the liquid container is sealed and functional, but both components must be discarded together when one is non-reusable, increasing waste

Engineering Contradiction:
Improveseal integrityVSAvoidcomponent waste
Core Design Contradiction:
ReliabilityVSLoss of substance

Solution Approach 1:

The liquid container is divided into separable components: the bag body and the liquid derivation member are connected through a detachable fixation unit rather than being welded as a single unit. This segmentation allows each component to be independently reused or discarded, reducing overall waste while maintaining seal integrity during operation.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The detachable connection design enables selective discarding and recovering of components. When the bag body is depleted or damaged, only the bag needs to be discarded while the derivation member can be recovered and reused. Conversely, if the derivation member is damaged, the bag can be retained and reused. This recovers valuable components that would otherwise be wasted.

Inventive Principle:
Principle #34Discarding and recovering

2Ease of manufacture

If the bag and derivation member are welded together, then the structure is simple and manufacturing is easy, but reuse flexibility is reduced and sustainability is compromised

Engineering Contradiction:
Improveassembly simplicityVSAvoidcomponent reuse flexibility
Core Design Contradiction:
Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

The fixation unit is designed as a separate, detachable component that simplifies the overall structure while enabling flexibility. The fixation unit includes connection portions that can be easily assembled and disassembled, maintaining manufacturing simplicity while providing the adaptability needed for component reuse and sustainability.

Inventive Principle:
Principle #1Segmentation

3Strength

If welding is used to connect the bag and derivation member, then the connection is strong and reliable, but the components cannot be separated for recycling, reducing sustainability

Engineering Contradiction:
Improveconnection strengthVSAvoidcomponent separability for recycling
Core Design Contradiction:
StrengthVSAdaptability or versatility

Solution Approach 1:

The connection system is segmented into the fixation unit with connection portions that provide sufficient strength during operation but allow for controlled separation during recycling. The detachable design maintains operational reliability while enabling component separation for recycling, thus balancing strength requirements with sustainability goals.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS20250326229A1Ink container, ink pack, and, manufacturing method
Publication Date: 2025.10.23 CANON KK
  • US20250326229A1 patent drawing
  • US20250326229A1 patent drawing
  • US20250326229A1 patent drawing

AI summary

An object is to provide an ink container that allows for reuse of as many members as possible and may contribute to realization of a sustainable society such as a decarbonized/recycling society. The ink container includes a bag body, a derivation member, and a fixation unit. The bag body is configured to be able to contain an ink. The derivation member is configured to be able to derive the ink from inside to outside of the bag body. The fixation unit is configured to be able to fix the bag body and the derivation member detachably.