Transfer Unit Locking Mechanism for Image Formers
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Solution Overview
Problem
Conventional image forming apparatuses are inconvenient as they require separate operations to lock and unlock the transfer unit to the apparatus body, necessitating manual manipulation of locking mechanisms and handles, which complicates mounting and separating processes.
Innovation Solution
A transfer unit with a locking and releasing unit that includes a rotating member, hook members, and a pressing member, allowing the transfer unit to be easily locked and unlocked by grasping a handle, simplifying the mounting and separating process by integrating the locking operation into the handle's manipulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a separate locking mechanism is used to secure the transfer unit to the apparatus body, then the transfer unit is reliably locked in position, but the mounting and separating operations become complex and inconvenient
Solution Approach 1:
The patent combines the locking mechanism and the handle into a single integrated structure. The handle itself becomes part of the locking mechanism, where grasping and manipulating the handle simultaneously performs both the locking and unlocking functions. This eliminates the need for separate locking-releasing buttons or levers, making the mounting and separating operations simple and convenient while maintaining reliable locking.
2Ease of operation
If multiple handles are formed on the transfer unit body for mounting and separating, then the transfer unit can be easily grasped and positioned, but additional locking-releasing mechanisms are required which increase operational complexity
Solution Approach 1:
The patent merges the handle function with the locking mechanism function. The handle is designed such that its manipulation (grasping, pushing, or rotating) simultaneously achieves both the grasping/positioning function and the locking/unlocking function. This integration eliminates the need for additional separate locking-releasing mechanisms, thereby reducing device complexity while maintaining ease of operation.
3Reliability
If a conventional separate locking-releasing button or lever is used, then the transfer unit can be securely locked, but the user must perform separate manipulation steps which increases the time and complexity of mounting and separating operations
Solution Approach 1:
The patent combines the locking-releasing mechanism with the handle into a single integrated component. When the user grasps and manipulates the handle, this single action simultaneously performs both the locking and releasing operations. This eliminates the need for separate manipulation steps required by conventional buttons or levers, significantly reducing the time and operational complexity of mounting and separating the transfer unit while maintaining secure locking.
Data Source
AI summary
A transfer unit and an image forming apparatus having the same. The transfer unit includes a transfer unit body to accommodate a printing medium conveyor, which makes a printing medium receive an image while moving the printing medium, a body handle used to mount the transfer unit body in an image forming apparatus and to separate the transfer unit body from the image forming apparatus, and a locking and releasing unit to lock the transfer unit body to the image forming apparatus and to release a locking connection therebetween. The locking and releasing unit is disposed to carry out a releasing operation by grasping the body handle.