Electronic Apparatus Detection Unit Protection via Flexible Deformation
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Solution Overview
Problem
Existing electronic apparatuses face challenges in suppressing the breakage of detection units, particularly when external forces are applied during maintenance or operation confirmation, leading to erroneous detection of the closed state of opening/closing bodies.
Innovation Solution
The electronic apparatus incorporates a deformation portion with flexibility, which is deformable between open and closed states, and a detection unit that is pressed by a pressing portion via a pressed surface, ensuring the detection unit is protected from external forces and breakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the member to be detected is inserted into the opening/closing detector through an opening, then the closed state of the opening/closing body can be detected, but the detection unit is vulnerable to breakage from external force
Solution Approach 1:
The pressing portion serves as an intermediary element between the member to be detected and the detection unit. It transmits the pressing force from the member to the detection unit while being replaceable, thus protecting the detection unit from direct contact with external forces that could cause breakage
Solution Approach 2:
The pressing portion is designed as a replaceable, consumable component that can be easily replaced if damaged. This allows the expensive detection unit to be protected while sacrificing a cheaper, easily replaceable part instead
2Ease of operation
If the opening/closing body operation is stopped when open, then maintenance work can be performed, but intentional erroneous detection may occur during operation confirmation
Solution Approach 1:
The pressing portion acts as a sacrificial component that can be damaged during maintenance work without affecting the detection unit. If erroneous detection occurs due to external force during maintenance, only the pressing portion needs to be replaced rather than the entire detection unit
3Measurement precision
If the detection unit is directly pressed by the pressing portion, then the closed state can be detected, but the detection unit is exposed to external force that may cause breakage
Solution Approach 1:
The pressing portion functions as a mediator that absorbs and transmits force to the detection unit. It is positioned between the external environment and the detection unit, protecting the detection unit from direct exposure to external forces while still enabling proper detection operation
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
This configuration effectively suppresses the breakage of the detection unit by distributing external forces and providing protection through the deformation portion, ensuring reliable operation and reducing maintenance costs.
Implementation Method 1
a deformation portion that is deformable between an open state shape and a closed state shape in accordance with an open/closed state of the door portion by an action of the pressing portion
Data Source
AI summary
A printing apparatus includes an apparatus main body, a door portion, a pressing portion, a deformation portion, and a detection unit, wherein a hole into which the pressing portion is inserted is formed at the apparatus main body, the pressed surface and the detection unit are pressed by the pressing portion inserted through the hole, the deformation portion includes a plate-like member having flexibility, one end and another end in a long side direction of the plate-like member are fixed to the apparatus main body, the detection unit is disposed at the apparatus main body so as to be covered with the pressed surface, and a width of the pressed surface is larger than a width of the detection unit and a width of the hole.