05820097 is referenced by 248 patents and cites 20 patents.

A breakaway mounting assembly supports a rearview mirror or other accessory on an improved windshield mounted button. The mounting assembly includes a base having a mount for the accessory or mirror, and a plurality of resilient flanges which engage, hold, and center the assembly on the button but flex to release the assembly if impacted from virtually any direction. Preferably, the resilient flanges are formed in one piece with a retainer mounted on the base by a plurality of mounting flanges also formed in one piece with the retainer and engaging a shoulder on the base. An open release space is defined between a pair of the flanges, while the base has an unobstructed open area aligned with the release space through which the button may be released when the mirror or accessory is impacted directly from the mirror reflecting surface. An inclined wall surface on the base cams the assembly off the button when the mirror or accessory is impacted from the side. The button is tapered toward a curved top end and the windshield attachment surface and has a recess at its bottom end adapted to receive one of the resilient flanges.

Title
Breakaway accessory mounting assembly for vehicles and windshield mounted button therefor
Application Number
8/781408
Publication Number
5820097
Application Date
January 10, 1997
Publication Date
October 13, 1998
Inventor
Ralph A Spooner
Holland
MI, US
Agent
Van Dyke Gardner Linn & Burkhart
Assignee
Donnelly Corporation
MI, US
IPC
F16M 13/00
View Original Source