Printer Housing Segmentation and Protrusion Engagement for Rigidity
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Solution Overview
Problem
Conventional mobile printers with a double-layered structure achieve high rigidity but at the cost of increased weight, compromising mobility.
Innovation Solution
A printer design featuring a container with a frame and body case that includes protrusions for engaging with the container's edges and a battery container with protrusions for weight savings, maintaining rigidity while reducing weight.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a double-layered structure is applied to the printer housing, then rigidity is improved, but weight increases
Solution Approach 1:
The housing is divided into a frame and a body case as separate components. The frame provides the primary structural support and rigidity, while the body case is designed as a lighter outer shell. This segmentation allows each component to be optimized for its specific function, achieving overall rigidity without the weight penalty of a completely double-layered structure.
Solution Approach 2:
Protrusion parts are added to the body case that extend into the container space, creating a three-dimensional engagement structure. These protrusions engage with corresponding features in the frame and container, providing structural reinforcement and rigidity through vertical dimensionality rather than adding more horizontal layers, thus avoiding increased weight.
2Strength
If a double-layered structure is applied to the printer housing, then rigidity is improved, but mobility deteriorates
Solution Approach 1:
By segmenting the housing into a lightweight body case and a structural frame, the overall weight is reduced compared to a solid double-layered structure. This weight reduction directly improves mobility while the frame maintains the necessary rigidity for printer operation.
Solution Approach 2:
The protrusion parts create structural reinforcement in the vertical dimension, allowing the housing to achieve high rigidity-to-weight ratio. This enables the printer to be lightweight and mobile while maintaining sufficient structural strength for printing operations.
Data Source
AI summary
An embodiment of a printer according to the present invention includes: a container configured to contain a roll body into which a belt-shaped print medium is wound; a frame including a first opening, the frame arranged to be a portion of the container; and a body case provided outside the frame and arranged to be a portion of a bottom surface of the container, the body case including a first protrusion part protruding toward the first opening.