Sheet Storage Cover Support to Prevent Deformation During Insertion
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Solution Overview
Problem
Existing sheet storage devices in image forming apparatuses face issues with deformation of covers due to user pushing, especially when low rigidity materials are used for downsizing, leading to potential bending and reduced structural integrity.
Innovation Solution
A handle holder with a deformation restrictor, such as a contact surface member, is integrated between the cover and the sheet storage to prevent bending of the cover by user pushing, enhancing rigidity without additional reinforcement members.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If low rigidity materials are used for the cover to achieve downsizing, then the apparatus size is reduced, but the cover deforms under user pushing force
Solution Approach 1:
The cover structure is segmented by introducing a rib that divides the cover into multiple regions. This segmentation creates localized stiffening without increasing overall cover thickness or apparatus size, allowing the use of low-rigidity materials while maintaining structural integrity during insertion operations.
Solution Approach 2:
A rib is added to the cover to create local reinforcement in the region most susceptible to deformation. This local quality enhancement provides the necessary rigidity where pushing force is applied, while the rest of the cover can remain thin and lightweight, achieving downsizing without sacrificing strength.
2Strength
If additional reinforcement members are added to prevent cover deformation, then cover strength is improved, but device complexity increases
Solution Approach 1:
The reinforcement function is merged with the cover itself by forming a rib as an integral part of the cover structure. This eliminates the need for separate reinforcement members or additional components, maintaining cover rigidity while avoiding increased device complexity or assembly steps.
Solution Approach 2:
The rib structure serves multiple functions: it reinforces the cover against deformation, maintains structural integrity during insertion, and is formed as part of the standard cover manufacturing process. This multi-functionality provides strength enhancement without adding dedicated reinforcement components.
Data Source
AI summary
A sheet storage device includes a sheet storage, a handle, a cover, and a handle holder. The sheet storage is insertable into and removable from an apparatus body. The handle is for insertion and removal of the sheet storage into and from the apparatus body. The cover is attached in front of the sheet storage in a removal direction of the sheet storage. The handle holder holds the handle on the sheet storage, is disposed between the cover and the sheet storage, and has a restrictor that restricts deformation of the cover toward the sheet storage.