Rotating Operating Portion for Compact Image Forming Component Access
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Solution Overview
Problem
Existing image forming apparatuses face challenges in efficiently and compactly removing and replacing components like the transfer unit, which can lead to increased size and interference issues during maintenance.
Innovation Solution
The design incorporates a rotatable opening-closing portion and an operating portion that retract to create a path for the transfer unit to be taken out obliquely upward, reducing the apparatus's size and minimizing interference by forming the exit path between these components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the opening-closing portion and operating portion are positioned to allow component removal, then the apparatus size increases, but component accessibility is improved
Solution Approach 1:
The operating portion is designed to rotate between a retracted position (during component removal) and an extended position (during normal operation). This dynamic reconfiguration allows the apparatus to provide adequate access space only when needed, rather than permanently increasing its size. The operating portion moves out of the way during maintenance operations and returns to its functional position during normal use.
Solution Approach 2:
The component removal path is configured to pass through a spatial gap formed between the opening-closing portion and the operating portion when the operating portion is retracted. By utilizing the three-dimensional space between these two components and allowing the operating portion to change its position in the front-rear direction, the design creates a removal path without permanently increasing the apparatus's footprint.
2Ease of operation
If the operating portion is retracted to form a removal path, then component removal is facilitated, but the operating portion cannot perform its function
Solution Approach 1:
The operating portion dynamically changes its position based on the operational phase: it is retracted to the front during component removal operations to facilitate access, and extended to its normal position during image formation operations to perform its intended function. This dynamic repositioning resolves the contradiction between enabling maintenance access and maintaining operational functionality.
Solution Approach 2:
The operating portion alternates between two states: retracted position during maintenance periods and extended functional position during normal operation periods. This periodic switching between configurations allows the system to optimize for either component accessibility or operational functionality depending on the current operational phase, without permanently compromising either aspect.
3Ease of operation
If the opening-closing portion rotates upward to open, then the opening is accessible, but interference with the removal path occurs
Solution Approach 1:
Before the opening-closing portion rotates upward to provide access to the opening, the operating portion is first retracted to the front position. This preliminary action creates the necessary spatial gap that prevents interference between the opening-closing portion's rotation path and the component removal path. By performing this sequence in the correct order, the design eliminates harmful interference while maintaining opening accessibility.
Solution Approach 2:
The system employs coordinated dynamic movement of both the opening-closing portion and the operating portion. The operating portion dynamically repositions itself in response to the opening-closing portion's movement, ensuring that the removal path remains clear throughout the opening operation. This dynamic coordination between components prevents interference while maintaining both accessibility functions.
Data Source
AI summary
An image forming apparatus includes an object disposed in an apparatus body so as to be capable of being taken out through an opening; an opening-closing portion that is rotatable and that covers the opening and rotates upward to open the opening; and an operating portion that is rotatable and disposed in front of the opening-closing portion. The operating portion is disposed at a position on a rotation trajectory along which the opening-closing portion rotates upward and on a path along which the object is taken out of the apparatus body. The operating portion rotates forward so as to be retracted from the rotation trajectory and the path along which the object is taken out and so that the path along which the object is taken out is formed between the operating portion and the opening-closing portion in the open state.