Sheet Storage Adapter Dynamics for Tab Sheet Capacity
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Solution Overview
Problem
Existing sheet storage devices struggle to efficiently store tab sheets of smaller sizes, such as A5, without reducing the number of stackable sheets, due to limitations in adapter design that lead to reduced capacity.
Innovation Solution
A sheet storage device with a tab sheet attachment unit that includes a fixing member, a movable member, and a biasing spring, which regulates the position of the tab sheet's end and limits the movement of the movable member to prevent adapter projection, allowing for stable storage of A5 size tab sheets without reducing capacity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an adapter is used to store A5 size tab sheets, then the rear end can be regulated, but the number of stackable sheets is reduced to about half
Solution Approach 1:
The patent applies the dynamics principle by making the adapter height adjustable through a height adjustment mechanism. The adapter can switch between a first height suitable for A4 size tab sheets and a second height suitable for A5 size tab sheets. This dynamic adjustment allows the system to adapt to different sheet sizes, maintaining both reliable rear end regulation and optimal stacking capacity for each size.
2Quantity of substance
If the adapter height is increased to accommodate A5 size tab sheets, then storage capacity is improved, but the adapter projects from the upper end of the sheet feeding cassette
Solution Approach 1:
The height adjustment mechanism enables the adapter to dynamically change its height. When A5 size tab sheets are stored, the adapter extends to the second height to maximize storage capacity. When A4 size tab sheets are stored, the adapter retracts to the first height to prevent projection from the cassette upper end. This dynamic adaptation eliminates the projection issue while maintaining storage capacity.
3Device complexity
If a fixed height adapter is used for A4 size tab sheets, then the structure is simple, but it cannot support storage of A5 size or smaller tab sheets
Solution Approach 1:
The adapter incorporates a height adjustment mechanism that allows it to switch between different heights. This dynamic capability enables the same adapter structure to support multiple sheet sizes (A4, A5, and smaller) without requiring separate adapters for each size, thereby improving versatility while maintaining reasonable structural simplicity.
Solution Approach 2:
The height-adjustable adapter serves multiple functions: it can store both A4 size tab sheets and A5 size or smaller tab sheets using the same adapter structure. By making the adapter universal through height adjustment, the system eliminates the need for multiple size-specific adapters, improving adaptability while keeping the overall device design efficient.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution enables the storage of A5 size tab sheets in numbers equivalent to A4 size tab sheets, maintaining the same capacity while ensuring stable regulation of the tab sheet's rear end, preventing adapter projection and enhancing storage efficiency.
Implementation Method 1
a biasing spring that applies a force to the movable member in a lifting direction of the fixing member
Implementation Method 2
when the sheet stacking member rotates to lift up
Data Source
AI summary
A sheet storage device includes a stacking member that lifts and lowers, a first regulating unit including a fixing member that is fixed to the stacking member and lifts and lowers together with the stacking member, a movable member that is arranged to be movable in a lifting and lowering direction of the fixing member with respect to the fixing member and is able to abut the end on the upstream side of the sheet, and a biasing member that applies a force to the movable member in a lifting direction of the fixing member, and a limiting portion configured to limit movement of the movable member in the lifting direction when the stacking member rotates in the lifting direction.