Developing Device Seal Attachment Rigidity via Integrated Housing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In developing devices with frame-shaped seal attachment portions, securing rigidity without increasing housing size is challenging, leading to potential bending of the seal attachment portion.
Innovation Solution
The integration of a frame-shaped seal attachment portion with an outer shell portion within the housing, forming an integrated member that separates the developer and roll accommodation spaces, prevents bending by extending the seal attachment portion outside the housing and forming an outer shell that separates the inside and outside of the housing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the size of the developing device is reduced, then the housing size is minimized, but the seal attachment portion becomes prone to bending due to insufficient rigidity
Solution Approach 1:
The seal attachment portion is integrally formed with the outer shell portion to create a single unified structure. This merging of previously separate components provides structural reinforcement to the seal attachment portion, preventing bending while maintaining compact housing dimensions. The integral formation ensures that the seal attachment portion benefits from the rigidity of the outer shell without requiring additional support structures that would increase size.
2Ease of manufacture
If the seal attachment portion is made separate from the outer shell, then manufacturing is simpler, but the seal attachment portion lacks structural support and bends easily
Solution Approach 1:
The seal attachment portion and outer shell portion are formed as a single integral component, eliminating the need for separate manufacturing and assembly steps for these two parts. This merging approach simultaneously simplifies manufacturing by reducing part count and assembly operations while providing the structural stability needed to prevent bending of the seal attachment portion.
3Strength
If the seal attachment portion is extended outside the housing, then rigidity is improved, but the housing size increases
Solution Approach 1:
The seal attachment portion is integrated with the outer shell portion, allowing it to extend outward as a natural continuation of the housing structure rather than as a separate added component. This merging enables the seal attachment portion to gain rigidity from its connection to the outer shell while the overall extension is minimized and efficiently utilized within the compact housing design.
Data Source
AI summary
A developing device includes a first housing member, and a second housing member that is configured by combining a housing, in which a developer accommodation space accommodating a developer and a roll accommodation space accommodating a development roll are provided, and the first housing member with each other and that includes an integrated member obtained by integrally forming a frame-shaped seal attachment portion and an outer shell portion with each other, the seal attachment portion being a portion to which a seal member separating the developer accommodation space and the roll accommodation space from each other is attached, the outer shell portion constituting an outer shell that separates an inside and an outside of the housing from each other.