Adhesive Fixing Structure for Precise Plate-to-Housing Alignment
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Solution Overview
Problem
Existing fixing structures face challenges in achieving precise alignment of plate-like members within housings while maintaining simplified manufacturing processes, particularly in applications like imaging apparatuses, where uniform adhesive application is difficult and requires high skill, leading to potential misalignment due to non-uniform adhesive distribution.
Innovation Solution
A fixing structure featuring a protrusion with communicating portions that allows for uniform adhesive distribution around the axis, ensuring precise alignment and secure fixation of a plate-like member to a housing, utilizing a configuration where the adhesive is injected through the protrusion's recess and flows through these communicating portions to reach the engaging portion, facilitating accurate and efficient assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If adhesive is applied manually to fix the plate-like member, then the fixing structure can be assembled, but the adhesive distribution becomes non-uniform requiring high skill and causing misalignment
Solution Approach 1:
The protrusion is pre-formed with communicating portions (through-holes or grooves) that enable uniform adhesive distribution before the actual adhesive application. This preliminary structural design ensures that when adhesive is applied, it automatically distributes evenly through the communicating portions to the engaging portion, eliminating the need for skilled manual application and ensuring precise alignment.
2Ease of manufacture
If a simple protrusion-engaging portion structure is used, then the manufacturing process is simplified, but uniform adhesive distribution cannot be achieved
Solution Approach 1:
The protrusion is designed with localized communicating portions (through-holes or grooves) at specific locations to control adhesive flow paths. This local structural modification ensures that adhesive is distributed uniformly along the engaging portion while maintaining the overall simplicity of the protrusion-engaging portion structure. The communicating portions are strategically placed to guide adhesive to where it is needed most.
Data Source
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AI summary
A fixing structure 14 comprises a plate-like member 15, a housing 16, and an adhesion body 17. The plate-like member 15 has an engaging portion 18. The housing 16 has a protrusion 19. At least part of an outer peripheral wall surface of the protrusion 19 faces an inner peripheral wall surface defining the engaging portion 18. The protrusion 19 has a recess formed from a tip thereof along a protruding direction. The adhesion body 17 is interposed between the engaging portion 18 and the protrusion 19 and fixes the plate-like member 15 to the housing 16. The protrusion 19 has communicating portions that communicate between the recess and an outer periphery of the protrusion 19 and are distributed around an axis extending in the protruding direction. The adhesion body 17 is located from the recess to a space between the engaging portion 18 and the protrusion 19 through the communicating portions.