Rearview Mirror Mount With Six-Point Support for Vibration Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing fastening devices for internal rear view mirrors in vehicles suffer from low rigidity and static overdetermination, leading to mirror glass vibrations during dynamic driving operations due to elastic deformation of the holding part.
Innovation Solution
A fastening device with a six-point support system and a separate retaining device, featuring projecting prismatic guides and recessed grooves, provides a statically precise and highly rigid connection between the holding part and the mirror foot, ensuring low mirror glass vibrations through a bayonet-like mounting mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the side edges of the V-shaped holding grooves are kept relatively thin to enable elastic deflection during assembly, then the ease of operation is improved, but the rigidity of the connection deteriorates, causing mirror glass vibrations during dynamic driving operation
Solution Approach 1:
The connection system is divided into two independent functional parts: a six-point support structure that provides rigid positioning and prevents vibrations, and a separate retaining device that secures the mirror foot. This segmentation allows each component to optimize its function without compromising the other, resolving the contradiction between ease of assembly and connection rigidity.
Solution Approach 2:
The six-point support structure serves multiple functions simultaneously: it provides precise positioning of the mirror foot, ensures rigid connection to prevent vibrations, and maintains static determinacy. The support elements with prismatic guides and holding grooves create a multi-functional connection system that addresses both assembly ease and structural rigidity.
2Ease of operation
If the holding part is made elastic in regions to facilitate assembly, then the ease of operation is improved, but the stability of the connection deteriorates, leading to static overdetermination and vibrations
Solution Approach 1:
The connection system is divided into two independent functional parts: a six-point support structure that provides rigid positioning and prevents vibrations, and a separate retaining device that secures the mirror foot. This segmentation allows each component to optimize its function without compromising the other, resolving the contradiction between ease of assembly and connection rigidity.
Solution Approach 2:
The support elements are designed with specific geometric parameters (prismatic guides with angles between 60° and 120°, six-point contact arrangement) that ensure static determinacy while facilitating assembly. These parameter optimizations allow the connection to be both easy to assemble and statically stable, preventing vibrations during dynamic driving operation.
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
The solution achieves a statically precise and highly rigid connection, reducing mirror glass vibrations during dynamic driving operations and ensuring correct assembly without rotation of the mirror foot during adjustment.
Implementation Method 1
a holding part (5) held in position by adhesive bonding being provided on the windshield
Data Source
AI summary
A fastening device for an internal rear view mirror of motor vehicles to be installed on an inner side of a windshield contains a holding part which is held in position on the windshield by adhesive bonding, to which holding part is detachably fastened a mirror foot of the internal rear view mirror. In order to obtain a statically precisely defined, highly rigid connection between the holding part and mirror foot, it is provided that the mirror foot, in its mounted operating position, is supported directly on the holding part merely by a six-point support and is fastened to the holding part by a separate retaining device.