Offset Boss Frame Fastening Structure for Thinner Housing
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Solution Overview
Problem
Conventional frame fastening structures result in a thick fastening portion due to the perpendicular alignment of columns, which is inefficient and not suitable for thinner designs.
Innovation Solution
A frame fastening structure comprising a first and second frame with bosses and holes, where the center positions of the bosses and holes are offset, utilizing a pull-in mechanism to generate elastic forces that pull the frames together, allowing for a thinner fastening portion by mating the frames in a direction perpendicular to their screw fastening direction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the upper and lower columns are pulled together in a direction perpendicular to their axes from a state where inclined faces are butted against each other, then the frames can be fastened with different screw fastening directions, but the fastening portion becomes thick
Solution Approach 1:
Instead of pulling columns together perpendicular to their axes as in conventional structures, this invention inverts the approach by having the second frame rotate about the screw axis. The holes are offset from the bosses, creating an eccentric connection that allows the frames to be pulled together in the screw fastening direction rather than perpendicular to it, thereby reducing fastening portion thickness while maintaining directional adaptability
Solution Approach 2:
The invention introduces rotational movement about the screw axis as a new dimension of motion. By offsetting the hole centers from the boss centers, the structure enables the second frame to rotate into its final position, transforming the fastening process from a simple linear pull-together to a multi-dimensional operation that combines linear movement with rotation, achieving both thin fastening portion and directional versatility
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 enables a thinner fastening portion, simplifies assembly, reduces the number of assembly steps, and ensures electromagnetic compatibility by using materials like magnesium alloys or conductive resins, while maintaining structural integrity.
Implementation Method 1
The pull-in mechanism produces a force in the direction in which the first and second frames pull on each other by the elastic force of the first frame or the second frame when the holes ride up over the boss portion
Data Source
AI summary
The present invention relates to a housing for an imaging device, and more particularly to a frame fastening structure, and provides a frame fastening structure with a thinner fastening portion. This frame fastening structure comprises a first frame, a second frame that is screwed to the first frame, bosses that are provided on either the first frame side or the second frame side, and holes provided on the other side into which the bosses are fitted. The center positions are offset when the bosses and holes are mated, which imparts a force in the direction of pulling the first frame and second frame together, and the layout is such that the fastening direction of the second frame is substantially perpendicular to the screw fastening direction.