Movable Cutting Blade for Rolled Sheet Refilling in Recording Apparatus
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Solution Overview
Problem
Existing recording apparatuses face challenges in operability, particularly when refilling rolled sheets, as the space required for refilling necessitates a change in the user's standing position, compromising convenience and efficiency.
Innovation Solution
A conveying device with a holding portion for rolled sheets, a conveying portion to guide the sheets, and a cutting portion with a movable blade that can retract to allow for easy refilling of rolled sheets without requiring a change in the user's standing position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the conveying path is formed to surround the housing portion to save space, then the device size is reduced, but the space required for refilling operation increases
Solution Approach 1:
The cutting blade is designed to be movable rather than fixed. It can move between a first position (cutting position) and a second position (retracted position) to create space for refilling operations. This dynamic positioning resolves the contradiction by allowing the blade to be out of the way during refilling while maintaining its cutting function during operation.
Solution Approach 2:
The cutting blade is extracted from its cutting position and moved to a retracted position during refilling operations. This extraction creates the necessary space for the user to refill the rolled sheet without requiring a change in standing position, while the blade returns to its cutting position when not in use.
2Ease of operation
If the rolled sheet is refilled by creating space around the housing portion, then the refilling operation can be performed, but the user must change standing position which reduces operability
Solution Approach 1:
The movable cutting blade provides dynamic space creation. During refilling, the blade moves to the retracted position, creating access space for the user at their current standing position. After refilling, the blade returns to its cutting position automatically. This eliminates the need for users to change standing positions and reduces operational complexity.
3Productivity
If the movable blade is positioned at the first position for cutting, then cutting function is maintained, but space for refilling operation is blocked
Solution Approach 1:
The cutting blade transitions dynamically between two positions: the first position for cutting operations and the second retracted position for refilling operations. This dynamic positioning allows the system to switch functions based on operational needs, maintaining cutting productivity when required while creating space for refilling when needed.
Solution Approach 2:
The blade is moved to the retracted position in advance before the refilling operation begins. This preliminary action creates the necessary space for refilling without interfering with the refilling process, and the blade returns to its cutting position after refilling is complete.
Data Source
AI summary
A conveying device includes a holding portion configured to hold a rolled sheet; a conveying portion configured to convey a sheet drawn out of the rolled sheet held by the holding portion; a guide portion configured to guide the sheet conveyed by the conveying portion; and a cutting portion which is disposed in the guide portion to cut the sheet using a movable blade. The movable blade moves to a first position approaching the holding portion, and to a second position departing from the holding portion.