Printer Case Assembly Structure Using Snap-Fit Hooks
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Solution Overview
Problem
Conventional printer case assembly structures require separate tools for assembly and disassembly, increasing assembly time, cost, and complexity, and leading to potential wear and loosening of screws during frequent use.
Innovation Solution
A printer case assembly structure that allows for quick assembly and disassembly through a simple manual operation using a latching sill part, separation prevention part, and assembly hook unit, eliminating the need for external tools and simplifying the structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If fastening screws and assembly tools are used to assemble the printer case, then the assembly structure is reliable and secure, but the assembly time increases and productivity decreases
Solution Approach 1:
The patent replaces the traditional mechanical screw-fastening system with a snap-fit system utilizing elastic hooks and grooves. The elastic hook members engage with the grooves on the cover and case to provide secure attachment without requiring screws or assembly tools, thereby eliminating the trade-off between reliability and productivity.
Solution Approach 2:
The elastic hook members are designed to automatically engage with the grooves when the cover is positioned on the case, and can be easily released by pressing the release protrusions. This self-latching mechanism eliminates the need for external assembly tools and complex fastening procedures, enabling quick tool-free assembly and disassembly.
2Strength
If fastening screws and reinforcing parts are added to the printer case structure, then the assembly strength is improved, but the device complexity increases
Solution Approach 1:
The patent extracts and eliminates unnecessary components such as fastening screws, washers, and complex reinforcing parts from the traditional printer case structure. The simplified design uses only the essential elastic hook members and grooves to achieve both secure attachment and structural integrity, thereby reducing device complexity while maintaining assembly strength.
3Reliability
If assembly tools and multiple assembly steps are required, then the fastening is secure, but the assembly cost increases
Solution Approach 1:
The elastic hook members with release protrusions enable operators to assemble and disassemble the printer case using only their hands, without requiring any specialized assembly tools. This self-service mechanism reduces assembly costs by eliminating tool requirements and simplifying the assembly process to basic manual operations.
Data Source
AI summary
A printer case assembly structure includes a print main body; a first case installed at a portion of the printer main body; a second case installed to surround the print main body except for an installing area of the first case and a cover installation opening part area; a latching sill part formed in the print main body and the first case to assemble the first case; a separation prevention part formed in the first and second cases to prevent the first case from being separated from the latching sill part; and an assembly hook unit formed in a hook structure in the printer main body and the second case to assemble the second case.