Rotating Sheet Placement Switching Mechanism
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Solution Overview
Problem
Existing sheet placement apparatuses in printing devices require increased size to switch between urging and non-urging states, which limits their functionality and adaptability to different sheet sizes.
Innovation Solution
A sheet placement apparatus with a switching portion that includes a position change member and a restricting portion, allowing rotation on a shaft to switch between pushing and non-pushing states without the need for sliding movement, enabling adjustable urging force without size increase.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a sliding mechanism is used to switch the pushing member between urging and non-urging states, then the switching function is achieved, but the device size increases due to the required slide movement space
Solution Approach 1:
The patent replaces the linear sliding movement with rotational movement around a shaft. The position change member rotates to change its position from contacting the hopper (urging state) to being away from the hopper (non-urging state), eliminating the need for linear slide movement space and thereby reducing device size while maintaining the switching function
Solution Approach 2:
The invention transitions from one-dimensional linear sliding movement to two-dimensional rotational movement around a shaft. This dimensional change allows the position change member to achieve position switching through rotation rather than linear displacement, reducing the space required for the switching mechanism
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
Enables efficient switching between urging and non-urging states without size increase, allowing for adaptable sheet handling across various sizes, reducing the risk of contact slippage and maintaining stable position change.
Implementation Method 1
a position change member that is fixed to the pushing member in such a way as to be able to change position due to deformation of the pushing member
Data Source
AI summary
Provided is a sheet placement apparatus that is capable of changing the force of pushing a hopper configured to push up a sheet, without an increase in size, and a printing apparatus that is equipped with such a sheet placement apparatus.