Bike frame
AssigneeLook Cycle International
InventorsPierre Bigard, Frédéric Caron, Julien Pavard
Life of this patent
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Abstract
A bike frame includes including a seat tube (10) for receiving a seatpost (2), a front portion comprising a top tube (13) connecting the seat tube (10) to a head tube (16), the seat tube (10), the top tube (13). The head tube (16) extends in a plane of symmetry of the bike frame (1). A rear portion has two chain stays (11a, 11b) and two seat stays (12a, 12b) arranged symmetrically relative to the plane of symmetry of the bike frame (1). The two seat stays (12a, 12b) are independent of each other and the two seat stays (12a, 12b) have a preform that is curved along at least one arc in a plane passing through the two seat stays, so as to enable the two seat stays to move away from or closer to each other under the action of a vertical load.
Claims9
A bike frame comprising:
- a seat tube configured to receive a seatpost,
- a front portion comprising a top tube connecting the seat tube to a head tube, said seat tube, said top tube and said head tube extending in a plane of symmetry of the bike frame, and
- a rear portion comprising two chain stays and two seat stays arranged symmetrically relative to the plane of symmetry of the bike frame,
- wherein each seat stay has a perpendicular cross-sectional profile that is elongated in a direction parallel to the plane of symmetry, in that the two seat stays are independent of each other and in that the two seat stays have a preform that is curved along at least one arc in a plane passing through the two seat stays, so as to enable the two seat stays to move away from or closer to each other under the action of a vertical load.
Dependencies are inferred from the claim text.