Method for making a carbon fiber wheel rim
OwnerShu-Wei Lininventor
Life of this patent
Estimating the term…
Abstract
A method for making a carbon fiber wheel rim includes: preparing an outer supporting piece; winding a carbon-fiber yarn around the outer supporting piece to form carbon fiber layers and to constitute an engaging seat preform; connecting an inner supporting piece to the engaging seat preform; connecting a reinforcement piece to the inner supporting piece; winding a carbon-fiber yarn around an assembly of the engaging seat preform, the inner supporting piece and the reinforcement piece to form carbon fiber layers; fixing the assembly with the carbon fiber layers to form an outer frame preform; and cutting the outer frame preform and the engaging seat preform to form a trench and removing the outer supporting piece therefrom.
Claims9
A method for making a carbon fiber wheel rim, the carbon fiber wheel rim having a circular engaging seat formed with a circular engaging groove for engagement with a tire, the method comprising:
- preparing a circular outer supporting piece having a cross-section that is complementary in shape with the circular engaging groove;
- winding continuously and circumferentially at least one first carbon-fiber yarn around the circular outer supporting piece to form a plurality of first carbon fiber layers, each being formed by winding the first carbon-fiber yarn in a mutually-different winding angle, the circular outer supporting piece and the first carbon fiber layers constituting a circular engaging seat preform;
- connecting a circular inner supporting piece to the circular engaging seat preform;
- connecting a circular reinforcement piece to the circular inner supporting piece oppositely of the circular engaging seat preform so that the circular engaging seat preform, the circular inner supporting piece and the circular reinforcement piece constitute an assembly;
- winding continuously and circumferentially at least one second carbon-fiber yarn around the assembly to form a plurality of second carbon fiber layers, each being formed by winding the second carbon-fiber yarn in a mutually-different winding angle;
- fixing the assembly with the second carbon fiber layers to form an outer frame preform on the assembly, the outer frame preform having an outer circular surface distal from the circular reinforcement piece;
- and
- removing part of the outer frame preform and part of the circular engaging seat preform to form a circular trench, followed by removing the circular outer supporting piece from the circular trench to form the circular engaging groove of the circular engaging seat and an outer frame.
Dependencies are inferred from the claim text.