Printing Frame Stopper Prevents Non-Elastic Deformation
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Solution Overview
Problem
Printing apparatuses with cantilever structures are prone to non-elastic deformation when subjected to external shocks or loads, which can lead to frame damage and operational issues.
Innovation Solution
Incorporating a stopper on the upper sheet carrying guide and a receiving portion on the lower sheet carrying guide to restrict deformation within an elastic range, preventing non-elastic deformation of the frame by allowing the frame to absorb and recover from external forces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a slit is provided in the printing unit to allow sheet insertion, then ease of operation is improved, but the frame becomes susceptible to deformation under external shock or load
Solution Approach 1:
A buffer member is provided between the frame and housing to absorb external shocks and loads before they can cause non-elastic deformation of the frame. The buffer member compresses elastically under external force, cushioning the frame from damage while allowing the slit to remain open for sheet insertion.
Solution Approach 2:
The frame is designed to change its physical state between elastic deformation (recoverable) and non-elastic deformation (permanent). By controlling the deformation parameters through the buffer member, the frame remains within elastic limits during normal operation and recovers fully after external forces are applied.
2Ease of operation
If the frame is designed with a cantilever structure to accommodate the slit, then ease of operation is improved, but the frame becomes prone to non-elastic deformation under external forces
Solution Approach 1:
The buffer member is positioned to absorb external shocks before they can cause non-elastic deformation of the cantilever frame. This cushioning action protects the frame's structural integrity while maintaining the open slit design for reliable sheet access.
Solution Approach 2:
The buffer member acts as an intermediary element between the external environment and the frame. It mediates the transmission of external forces, converting potentially damaging impacts into controlled elastic compression that protects the frame's cantilever structure.
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 suppresses non-elastic deformation of the frame, ensuring it remains functional and prevents damage from external forces, while allowing the sheet to be inserted and printed without obstruction.
Implementation Method 1
when the frame is deformed around the supported portion within an elastic deformation range of the frame
Data Source
AI summary
A printing apparatus according to an embodiment includes a housing and a frame having a supported portion which is supported by the housing on a first side and an unsupported portion not supported by the housing on a second side. A printer is provided on the frame. An upper sheet carrying guide is provided below the frame. A lower sheet carrying guide is provided below the upper sheet carrying guide. The lower sheet carrying guide is shaped and positioned to form a gap, into which a sheet to be printed by the printer is inserted, between the upper sheet carrying guide and the lower sheet carrying guide. A stopper is provided on the upper sheet carrying guide. The stopper being shaped and positioned to abut against the lower sheet carrying guide when the frame is deformed around the supported portion within an elastic deformation range of the frame.