High-ride conversion member for conventional bicycles

• US 3,945,667 A
• Filed: 03/05/1975
• Issued: 03/23/1976
• Est. Priority Date: 03/05/1975
• Status: Expired due to Term

• Current Assignee: L A Emergency Oxygen Incorporated
• Original Assignee: L A Emergency Oxygen Incorporated
• Inventors: Cipres, Henry A.
• Primary Examiner(s): Betts, Kenneth H.
• Application Number:
  US05/555,692
• Time in Patent Office: 384 Days
• Field of Search: 280/7.15, 280/261, 280/278, 280/287, 280/259, 280/7.1
• US Class Current: 280/7.15
• CPC Class Codes: B62K 3/02 Frames tandem frames B62K3/14

Abstract

A conventional bicycle of the type having a frame with an upper bar between an upright seat-supporting member and a steering fork bearing assembly is converted to a high-ride bicycle by a bifurcated seat extension having a housing for a pedal sprocket bearing assembly on the end of one branch which extends forwardly along the upper bar. Clamping means secures the forwardly extending branch to the upper bar. A downwardly extending branch is clamped in the bicycle frame in the place of the seat, and the seat is clamped in place at the upper end of the seat extension.

Claims

1. A bifurcated seat extension member for converting a conventional bicycle, of the type having a frame with an upper bar between an upright seat-supporting member and a housing for a steering fork bearing assembly, to a high-ride bicycle, said seat extension being comprised of a hollow cylindrical member having a contractible clamping means around its upper end and a post at its lower end, said post being adapted to fit into said upright seat-supporting member of a conventional bicycle and to be secured by a contractible clamping means normally used to secure a conventional seat, and a branch extending forwardly from the hollow cylindrical member along the upper bar of the frame of said bicycle, said branch having a housing at the end thereof for a pedal sprocket bearing assembly, and means for securing said housing structure to said upper bar, whereby the conventional sprocket bearing assembly may be transferred to the housing at the end of the branch to complete conversion of the bicycle to a high-ride bicycle with the addition of a few links as necessary in the bicycle chain to reach around the sprocket in the new high-ride position.

2. A bifurcated seat extension as defined in claim 1 wherein said means for securing said housing structure to said upper bar is comprised of a clamp secured to the bottom of said housing, said clamp extending around said upper bar.

3. A bifurcated seat extension member as defined in claim 1 wherein said post at the lower end of said hollow cylindrical member is itself a smaller hollow cylindrical member having an outside diameter substantially equal to the inner diameter of the larger hollow cylindrical member, and the smaller cylindrical member extends into the larger cylindrical member.