Pulling-Out Portion Locking Mechanism for Sheet Displacement
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Solution Overview
Problem
Existing sheet feeding devices face difficulties in preventing oblique or lateral displacement of recording media during transport, especially when the pulling-out portion is not securely locked to the main body portion.
Innovation Solution
An accommodating device with a main body portion, a pulling-out portion for loading recording media, a prevention portion to lock the pulling-out portion in place, and a fixing portion to securely attach the pulling-out portion to the main body portion, preventing displacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If only a prevention portion is used to restrain the pulling-out portion, then the device structure is simple, but the recording media may be obliquely or laterally displaced during transport
Solution Approach 1:
The patent combines the prevention portion (which prevents pulling out) with a fixing portion (which prevents oblique or lateral displacement). These two functional portions are integrated into a unified locking mechanism that simultaneously achieves both prevention of extraction and fixation against displacement, resolving the contradiction between structural simplicity and reliability.
Solution Approach 2:
The locking mechanism is designed to perform multiple functions: the prevention portion restrains the pulling-out portion from being extracted, while the fixing portion simultaneously prevents oblique or lateral displacement of the pulling-out portion. This multi-functional design eliminates the need for separate mechanisms, maintaining structural simplicity while enhancing reliability.
2Reliability
If the pulling-out portion is securely fixed to prevent displacement, then transport stability is improved, but the ease of pulling out and mounting is reduced
Solution Approach 1:
The locking mechanism employs a latch that can dynamically transition between locked and unlocked states. When locked, the prevention portion secures the pulling-out portion against extraction and the fixing portion prevents displacement. When unlocked, both constraints are released, allowing easy pulling out and mounting. This dynamic state change resolves the contradiction between transport stability and ease of operation.
Solution Approach 2:
The mechanism changes the constraint parameters selectively: during transport, the prevention portion and fixing portion are engaged to provide high restraint; during loading/unloading, the latch is disengaged to reduce constraints. This parameter change allows the system to optimize between stability and operability at different operational phases.
3Ease of operation
If the pulling-out portion is easily pulled out for mounting, then ease of operation is improved, but the prevention of unintended displacement is reduced
Solution Approach 1:
The latch mechanism provides dynamic control over the constraint level. During mounting operations, the latch can be easily opened to allow free movement of the pulling-out portion. Once mounted, the latch is closed to engage both the prevention portion and fixing portion, providing strong restraint against unintended displacement. This dynamic transition resolves the contradiction between ease of mounting and prevention of displacement.
Data Source
AI summary
An accommodating device includes: a main body portion; a pulling-out portion on which recording media are loaded, the pulling-out portion being capable of being pulled out from the main body portion; a prevention portion configured to prevent the pulling-out portion from being pulled out by being locked to the main body portion in a state where the pulling-out portion is housed in the main body portion; and a fixing portion configured to fix the pulling-out portion to the main body portion in the state where the pulling-out portion is housed in the main body portion.