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Automotive rear view mirror assembly

  • US 4,915,493 A
  • Filed: 01/04/1989
  • Issued: 04/10/1990
  • Est. Priority Date: 01/04/1989
  • Status: Expired due to Term
First Claim
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1. A mirror assembly comprisinga mirror holding member molded of plastic material,a mirror carried by said mirror holding member,a support member molded of plastic material andmeans for connecting said mirror holding member on said support member for pivotal movements along two intersecting perpendicular axes,said connecting means comprisingcooperating first and second connecting structures formed integrally on said members respectively,said first integral connecting structure comprising a projecting base portion having an enlarged portion on a projecting end of said base portion, said enlarged portion having first convex connecting surface means disposed within a first spherical plane having a first pair of parallel truncations one of which is defined by an intersection with said base portion,said enlarged portion having first concave connecting surface means facing away from said base portion disposed within a first spherical segmental plane having (1) a center coincident with the center of said first spherical plane and (2) a radius smaller than the radius of first spherical plane,said second integral connecting structure comprising a projecting annular wall having second concave connecting surface means disposed within a second spherical plane having (1) a radius generally equal to the radius of said first truncated spherical plane and (2) a second pair of parallel truncations,said second integral connecting structure including a projecting central portion within said annular wall having second convex connecting surface means facing in the direction of projection of said annular wall disposed within a second spherical segmental plane having (1) a center coincident with the center of said second spherical plane and (2) a radius equal to the radius of said first spherical segmental plane,the nature of the plastic material and the construction of said annular wall being such that said annular wall is operable in response to the movement of said enlarged portion therein to resiliently yield and resiliently return to bring (1) the first convex connecting surface means of said enlarged portion into engagement with the second concave connecting surface means of said annular wall so as to retain said first and second integral connecting structures against movement in a direction away from one another and (2) said first concave connecting surface means of said enlarged portion into engagement with the second convex connecting surface means of said projecting central portion so as to limit the movement of said first and second integral connecting structures in a direction toward one another,the engagement of said connecting surface means permitting relative sliding movement therebetween so as to retain the members in cooperating relation in a multiplicity of different positions of pivotal movement of said mirror holding member with respect to said support member along said two intersecting perpendicular axes.

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