Sheet Width Regulating Device Synchronized Cursor Mechanism
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Solution Overview
Problem
Conventional sheet width regulating devices in image forming apparatuses face issues with cursor inclination due to non-uniform force distribution when users manually adjust the cursors, affecting the alignment of sheets during the feeding process.
Innovation Solution
A sheet width regulating device comprising a base plate, a regulating member, and a synchronized moving mechanism using racks and pinions to ensure both cursors move in tandem, preventing inclination by maintaining equal movement amounts and forces across both cursors, thus improving user operability and alignment accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If cursors are made long enough for users to hold and move them manually, then ease of operation is improved, but non-uniform force distribution causes cursor inclination and reduces manufacturing precision
Solution Approach 1:
The cursor is divided into multiple segments: a long operation portion for user handling and a short regulation portion for precise sheet width control. The guiding portions extend from the operation portion to the regulation portion, creating a segmented structure that separates the functions of manual operation and precise regulation, allowing the long cursor to operate without causing inclination.
Solution Approach 2:
Guiding portions act as intermediaries between the operation portion and the regulation portion of the cursor. These guiding portions constrain the movement of the cursor, ensuring that when users move the long operation portion, the regulation portion moves uniformly without inclination, thus mediating between manual operation and precise alignment.
2Ease of operation
If cursors are made long for manual handling, then user operability is improved, but forces act non-uniformly causing inclination and reducing alignment accuracy
Solution Approach 1:
The cursor structure is segmented into a long operation portion for user handling and a short regulation portion for precise sheet width control, with guiding portions connecting them. This segmentation allows the long cursor to be easily operated while the guiding portions ensure the regulation portion moves without inclination, maintaining alignment accuracy.
Solution Approach 2:
The guiding portions serve as intermediaries that transmit movement from the operation portion to the regulation portion while constraining it to move uniformly. This intermediary structure ensures that even when users apply non-uniform forces to the long operation portion, the regulation portion maintains precise alignment with the sheet feeding direction.
3Manufacturing precision
If cursors are short for precise regulation, then manufacturing precision is improved, but ease of manual operation deteriorates
Solution Approach 1:
The cursor is segmented into a short regulation portion for precise sheet width control and a long operation portion for easy manual handling, connected by guiding portions. This segmentation allows the regulation portion to remain short for precision while the operation portion extends for ease of operation.
Solution Approach 2:
The cursor design extends in the width direction (perpendicular to sheet feeding direction) to create a long operation portion for easy handling, while the regulation portion remains short along the feeding direction to maintain precision. This dimensional extension resolves the contradiction between length for operation and shortness for precision.
4Ease of operation
If cursors are made long for user handling, then ease of operation is improved, but cursor inclination increases reducing reliability
Solution Approach 1:
The guiding portions act as intermediaries that constrain and guide the movement of the cursor segments. When users move the long operation portion, the guiding portions ensure the regulation portion moves uniformly without inclination, maintaining reliable parallelism with the sheet feeding direction throughout the adjustment process.
Solution Approach 2:
The design replaces reliance on uniform manual force distribution with a mechanical guiding system. The guiding portions provide mechanical constraints that ensure uniform movement regardless of how the user applies force to the long operation portion, substituting mechanical precision for manual precision.
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 effectively reduces the likelihood of cursor inclination, enhances user operability, and ensures precise sheet alignment by synchronizing the movement of both cursors, ensuring they remain parallel to the sheet feeding direction.
Implementation Method 1
a synchronizing member (76) which synchronizes a movement of the first guidable portion (761) guided by the first guiding portion (730a) and a movement of the second guidable portion (762) guided by the second guiding portion (730b)
Data Source
AI summary
A sheet width regulating device includes a base plate, a regulating member, a first moving cursor, a first guiding portion, a second guiding portion, a first guidable portion, a second guidable portion, and a synchronizing member. The regulating member regulates one end of the sheet. The first moving cursor regulates the other end of the sheet, and is movable in the way perpendicular to a direction along the other end of the sheet that the first guiding portion extends. The second guiding portion extends in parallel with the first guiding portion. The first guidable portion is attached to the first moving cursor and guided by the first guiding portion. The second guidable portion is attached to the first moving cursor and guided by the second guiding portion. The synchronizing member synchronizes a movement of the first guidable portion and the second guidable portion.