Tank manufacturing method and tank
AssigneeToyota Jidosha Kabushiki Kaisha
InventorNaoki Ueda
Life of this patent
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Abstract
A tank manufacturing method includes the steps of (a) forming a reinforcing layer before hardening, (b) embedding at least a part of a label into the reinforcing layer before hardening, and (c) winding glass fiber with thermosetting resin before hardening impregnated so as to cover the label to form a surface layer before hardening. The step (a) includes (a1) forming an inner layer before hardening, and (a2) forming an outer layer before hardening having a cover rate lower than the inner layer before hardening and lower than 100%, the outer layer before hardening being arranged on the inner layer before hardening.
Claims5
A tank manufacturing method, comprising:
- (a) winding fiber impregnated with a thermosetting resin on a liner to form a reinforcing layer before hardening;
- (b) embedding at least a part of a label into the reinforcing layer before hardening;
- (c) winding glass fiber impregnated with a thermosetting resin before hardening so as to cover the label to form a surface layer before hardening, wherein
- (a) comprises:
- (a1) forming an inner layer before hardening, and
- (a2) forming an outer layer before hardening that has a cover rate lower than the inner layer before hardening and lower than 100%, the cover rate being a percentage of a volume occupied by the fiber impregnated with the thermosetting resin in a space of the reinforcing layer before hardening, and that is arranged on the inner layer before hardening, and
- (b) comprises:
- (b1) arranging the label on the reinforcing layer before hardening, and
- (b2) embedding at least a part of the label into the reinforcing layer before hardening with the glass fiber wound on the label at (c), wherein
- (b2) comprises making tension added to the glass fiber when the glass fiber is wound on the label higher than tension added to the glass fiber when the glass fiber is wound on another part different from the label.
Dependencies are inferred from the claim text.