Trek Bicycle Corporation

Christopher Pomering

Reggie Lund

David Guzik

A bicycle frame assembly that includes an upper frame member and a lower frame member that each extend between a head tube and a dropout. A seat tube extends between the upper frame member and the lower frame member. The seat tube is preferably connected to a bottom bracket of the lower frame member and is connected by a pivot to the upper frame member so that the seat tube can deflect from a rest position without altering an orientation of a top tube to a bottom tube of the upper and lower frame members, respectively.

Bicycle frame with passive seat tube pivot joint

A bicycle frame assembly that includes at least one joint having a number of steps and laps formed between adjoining frame members. A first frame member includes a male portion of the joint and has at least three steps that are separated by rises between adjacent steps formed on an exterior surface of the first frame member. A second frame member includes a female portion of the joint and has the same number of steps and rises as the first frame member formed on an interior surface of the second frame member. The steps and rises of the first and second frame members are constructed and orientated so that the first frame member slidably cooperates with the second frame member to form a continuous multidirectional joint therebetween.

Growing community of inventors

Waterloo, WI, United States of America

Christopher Pomering