Method of manufacturing shoe upper, shoe upper, and shoe
AssigneeAsics Corporation
InventorShinsaku WAKASUGI
Life of this patent
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Abstract
A method of manufacturing a shoe upper according to the present invention includes: three-dimensionally forming an upper member; pre-heating the upper member such that a portion-to-be-reinforced of the three-dimensionally formed upper member is heated to a temperature equal to or higher than a melting point of thermoplastic resin powder; adhering the thermoplastic resin powder to the upper member so as to at least cover the portion-to-be-reinforced of the pre-heated upper member; further heating the upper member to which the thermoplastic resin powder is adhered and melting the thermoplastic resin powder adhered to the upper member; and hardening the melted thermoplastic resin powder to firmly adhere the reinforcing portion to the upper member.
Claims20
A method of manufacturing a shoe upper including
- an upper member including a reinforced portion, and
- a reinforcing portion that covers the reinforced portion to reinforce the upper member, the method comprising:
- preparing the upper member;
- preparing thermoplastic resin powder to be formed as the reinforcing portion;
- three-dimensionally forming the upper member;
- and
- pre-heating the three-dimensionally formed upper member such that a portion-to-be-reinforced of the three-dimensionally formed upper member is heated to a temperature equal to or higher than a melting point of the thermoplastic resin powder;
- adhering the thermoplastic resin powder to the upper member so as to at least cover the portion-to-be-reinforced of the pre-heated upper member;
- further heating the upper member to which the thermoplastic resin powder is adhered, and melting the thermoplastic resin powder adhered to the upper member;
- and
- hardening the melted thermoplastic resin powder to firmly adhere the reinforcing portion to the upper member.
A shoe upper comprising:
- an upper member including a reinforced portion;
- and
- a reinforcing portion that covers the reinforced portion to reinforce the upper member, wherein
- the reinforcing portion is formed by melting thermoplastic resin powder adhered to the upper member, and hardening the melted thermoplastic resin powder to be firmly adhered to the upper member, and
- the reinforcing portion is provided to extend over a joint of the upper member.
A shoe upper comprising:
- an upper member including a reinforced portion;
- and
- a reinforcing portion that covers the reinforced portion to reinforce the upper member, wherein
- the reinforcing portion is formed by melting thermoplastic resin powder adhered to the upper member, and hardening the melted thermoplastic resin powder to be firmly adhered to the upper member, and
- the reinforced portion of the upper member that is reinforced by the reinforcing portion is smaller in thickness than a portion other than the reinforced portion in the upper member.
Dependencies are inferred from the claim text.