Door Mirror Visor Cover Assembly Scratching Prevention
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing door mirror device assembly operations often result in scratching between the visor rim and visor cover due to direct contact during assembly.
Innovation Solution
The door mirror device incorporates a design with a first and second structural body, featuring facing portions, disposition portions, a fixing portion, and an abutting portion, where the disposition portions are separated from the facing portions before being moved to the back sides, preventing direct rubbing and scratching, and includes guide portions to facilitate easier assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the visor cover is directly assembled to the visor rim, then the assembly operation is simple, but the visor rim and visor cover are scratched during assembly
Solution Approach 1:
The patent introduces a buffer member as an intermediary component between the visor cover and visor rim. This buffer member has a first engagement portion that engages with the visor rim and a second engagement portion that engages with the visor cover, preventing direct contact between the two main components during assembly. The buffer member absorbs the harmful interaction force, eliminating scratching while maintaining assembly simplicity.
2Object-affected harmful factors
If the disposition portions are separated from the facing portions during assembly, then scratching is suppressed, but the assembly process becomes more complex
Solution Approach 1:
The buffer member is pre-configured with engagement portions that automatically separate the disposition portions from the facing portions during the assembly process. The first engagement portion engages with the visor rim first, creating a buffer zone before the visor cover is installed. This preliminary engagement action prevents direct contact between the visor cover and visor rim without requiring complex manual separation operations.
3Object-affected harmful factors
If the abutting portion is positioned at the second direction side of the fixing portion, then the disposition portions are separated to prevent scratching, but the positioning precision may be affected
Solution Approach 1:
The buffer member extends in the vehicle width direction (second direction) beyond the fixing portion to create the abutting portion. This dimensional extension allows the buffer member to physically separate the disposition portions from the facing portions in the vehicle width direction while the fixing portion maintains positioning precision in the vehicle front-rear direction (first direction). The separation action occurs in a different dimensional plane from the fixing action.
Data Source
AI summary
Fixed-to portions of a visor cover are fixed to fixing portions of a bracket. Engagement hooks of the visor cover are disposed at back sides of outer peripheral end portions of a visor rim. When the fixed-to portions are caused to abut abutting portions of the bracket and the visor rim, the engagement hook is separated from the outer peripheral end portion in a vehicle width direction and the engagement hook is separated from the outer peripheral end portion in a vehicle front-rear direction. Thus, the fixed-to portions are caused to abut the abutting portions and are moved toward the fixing portions, enabling rubbing of the engagement hook and the engagement hook against the outer peripheral end portion and the outer peripheral end portion to be suppressed.