A structure for frames for bicycles, wheelchairs, and other vehicles, as well as components thereof and other devices requiring a strong, lightweight frame shell. The preferred frame structure is constructed from plastic molded partial shells that are assembled into shells (such as tubing) that comp
A structure for frames for bicycles, wheelchairs, and other vehicles, as well as components thereof and other devices requiring a strong, lightweight frame shell. The preferred frame structure is constructed from plastic molded partial shells that are assembled into shells (such as tubing) that comprises the frame. The partial shells have protrusions and receptacles on the joining faces of their skins that are used to join the partial shells together to form the assembled shell. This results in a lightweight, durable and aesthetically pleasing frame. In an alternative embodiment, the partial shells have protrusions and receptacles within their interiors for additional strength. Additional attachment mechanisms such as screws, bolts, nails, clips or rivets may be used for reinforcement of the partial shells. A method for manufacturing the frame is also disclosed.
대표청구항▼
[ We claim:] [1.] A lightweight structural component for a human-powered vehicle, the structural component comprising:a first partial shell, said first partial shell having a proximal side and a distal surface,a second partial shell, said second partial shell having a proximal side and a distal surf
[ We claim:] [1.] A lightweight structural component for a human-powered vehicle, the structural component comprising:a first partial shell, said first partial shell having a proximal side and a distal surface,a second partial shell, said second partial shell having a proximal side and a distal surface,said first and second partial shells being joined to form an assembled shell, an outer tube skin on said distal surface of each of said partial shells, said outer tube skins forming an exterior surface of the assembled shell,an interior cavity located on the proximal side of each partial shell, said interior cavities each having a volume that includes a hollow portion,a first joining face located along the length of said first partial shell,a second joining face located along the length of said second partial shell, said first joining face of said first partial shell being in firm contact with said first joining face of said second partial shell in the assembled shell, said second joining face of said first partial shell being in firm contact with said second joining face of said second partial shell in the assembled shell,a protrusion located in a joining face of said first partial shell,a receptacle located on a joining face of said second partial shell anda reinforcing rib located on the proximal side of one of said partial shells said reinforcing rib being adapted to provide structural strength to said assembled shell;wherein said assembled shell has a first seam where said first joining face of said first partial shell meets said first joining face of said second partial shell;wherein said assembled shell has a second seam where said second joining face of said first partial shell meets said second joining face of said second partial shell;wherein said first seam and said second seam define a plane referred to as the joining plane;wherein in said assembled shell, said protrusion protrudes into said receptacle;wherein said protrusion protruding into said receptacle impedes movement of said first partial shell with respect to said second partial shell in the joining plane;wherein said structural component is manufactured from a fiber-reinforced thermoplastic material.
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이 특허에 인용된 특허 (38)
Thibault Jane M. (Louisville KY) Kelly Pat M. (Louisville KY) Hunt Jeffrey B. (Borden IN), Adirondack chair for elderly people.
Sims Larry A. (Thousand Oaks CA) Reynolds Robert W. (Camarillo CA) Lewandowski Raymond P. (Ventura CA) McWethy Robert T. (Ventura CA), Composite frame wheelchair.
Beddome David W. (North Tonawanda NY) Macy William H. (Williamsville NY) Mollendorf Joseph C. (Amherst NY) Peebles Kenneth L. (Lancaster NY) Dressing Thomas G. (Rochester NY), Four-line exercising attachment for wheelchairs.
Lockard Walter G. (Elyria OH) Hoekstra Herbert J. (Ridgeville OH) Boris Allen J. (Elyria OH) Nickles Douglas M. (Elyria OH), Length and width adjustable wheelchair.
Bellanca August T. (Wilson Point Rd. Galena MD 21635) Bellanca ; Jr. August T. (Wilson Point Rd. Galena MD 21635), Lightweight bicycle with improved front and rear wheel fork and method of constructing same.
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