Lightweight high strength bicycle seat post and associated clamp

  • US 5,649,738 A
  • Filed: 08/16/1995
  • Issued: 07/22/1997
  • Est. Priority Date: 08/16/1995
  • Status: Expired due to Term
First Claim
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1. An apparatus for securing a bicycle seat to a bicycle frame, the bicycle seat comprising a pair of spaced apart longitudinally extending seat rails, said apparatus comprising:

  • a seat post comprising a tube and a flange connected to an end of said tube, said flange comprising a pair of opposing ears extending longitudinally outwardly from said tube, said flange having an upper surface defining a laterally extending partial cylindrical recess;

    a clamp connected to said seat post and comprising a lower clamp member and an upper clamp member connected together for securing the seat rails therebetween;

    said lower clamp member comprisinga lower clamp body portion having a lower surface defining a laterally extending partial cylindrical shape received in the recess of said flange, anda pair of lower rail channel defining portions connected to respective opposing longitudinally extending sides of said lower clamp body portion, each of said lower rail channel defining portions comprising at least one cantilevered rail support portion extending longitudinally outwardly from said lower clamp body portion;

    said upper clamp member comprising an upper clamp body portion and a pair of upper rail channel defining portions connected to respective opposite longitudinally extending sides of said upper clamp body portion; and

    a pair of fasteners securing opposing longitudinal ends of said upper clamp body portion to corresponding ears of said flange so as to clamp the bicycle seat rails between upper and lower rail channel defining portions of said upper and lower clamp members.

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