IPC分类号：
A43B3/00 | A43D3/02 | B29L31/00 | B33Y10/00 | B33Y80/00 | G05B19/4099 | B33Y50/02 | B29C64/124 | B29C64/153 | B29C64/393 | B29C64/118 | A43D1/02
国民经济行业分类号：
C1954 | C1953 | C1952 | C1951 | C2444 | C1761 | O8192 | C1959
当前申请(专利权)人：
ELSE CORP S.R.L.
原始申请(专利权)人：
ELSE CORP S.R.L.
当前申请(专利权)人地址：
Via Torquato Tasso, 7, Milano, IT
代理机构：
POSTIGLIONE, FERRUCCIO
摘要：
It is described a method (200) of modifying a shoe-last, comprising: acquiring (201) current digital data representing a foot shape; providing (202) reference digital data representing a shoe-last shape to be modified; comparing (203) the current digital data with the reference digital data to design patch shapes and patch positions; providing a shoe-last corresponding to the reference digital data; producing (204) patch elements corresponding to said patch shapes; applying (204) the patch elements on the shoe-last in accordance with said patch positions obtaining a modified shoe-last. Wherein the production and the application of the patch elements on the shoe-last is performed by employing an additive manufacturing technique.
技术问题语段：
The Applicant has noticed that the known techniques for design manufacturing shoe lasts do not combine in a satisfying manner the demand for a full customization with the needs for cost reduction and minimal timing.
技术功效语段：
The present invention is about a method and system for modifying a shoe-last, which helps achieve full customization while reducing cost and minimizing timing. The method involves using a three-dimensional scanning device to capture the shape of a shoe-last, followed by a computer software program to modify the shape of the shoe-last by adding or removing material. This modification can be done quickly and accurately, allowing for customization without the need for a visit to a shoe-last customizer. The system includes a computer software program and a three-dimensional scanning device that work together to modify the shoe-last shape and can be used in a shoe-last modification business.
权利要求：
1. A method (200) of modifying a shoe-last, comprising: acquiring (201) current digital data (F-D) representing a foot shape; providing (202) reference digital data (R-D) representing a shoe-last shape (106) to be modified; comparing (203) the current digital data with the reference digital data to design patch shapes and patch positions; providing a shoe-last corresponding to the reference digital data; characterized in that the method further comprises the following steps: producing (204) patch elements (110) corresponding to said patch shapes; applying (204) the patch elements (110) on the shoe-last in accordance with said patch positions obtaining a modified shoe-last; wherein the production and the application of the patch elements on the shoe-last is performed by employing an additive manufacturing technique.
2. The method of claim 1, wherein said patch elements (106) are detachable from the shoe-last (106).
3. The method of at least claim 1, wherein said patch elements (106) are made by a first material having mechanical features allowing the use of the modified shoe-last in a shoe manufacturing process.
4. The method of at least claim 3, wherein said first material is different from a second material employed to manufacturing said shoe-last.
5. The method of at least claim 1, further comprising: covering (205) at least said patch elements (106) with a coating made by a coating material compatible with said shoe manufacturing process.
6. The method of claim 5, wherein said covering includes performing a spray-coating.
7. The method of at least claim 1, wherein said patch elements are made by a material chosen among the following materials: thermoplastic powders, composite plastic powders, nano-composite plastic powders.
8. The method of at least claim 7, wherein said additive manufacturing technique is one of the following techniques: fused deposition modeling; PoLyJet, Stereolithography combined with Digital Light Processing.
9. The method of at least claim 7, wherein: - acquiring (201) digital data representing foot shape and foot volume comprises: performing a 3D scan of a user's foot; - providing (202) reference digital data representing a shoe-last shape comprises: comparing (302) the current digital data with a plurality of groups of digital data each group associated with an available shoe-last; selecting (303) a group of digital data as the reference digital data which corresponds to a shoe-last which best fits the current digital data.
10. A shoe-last modification system (100), comprising: - an acquisition device (101) configured to acquire current digital data representing a foot shape (105); - a processing and control module (102) configured to: receive reference digital data representing a shoe-last shape; compare the current digital data with the reference digital data to design patch shapes and patch positions; characterized by - at least one manufacturing apparatus (104, 107) operating according to an additive manufacturing technique under the control of the processing and control module (102), the manufacturing apparatus being structured to: producing patch elements (110) corresponding to said patch shapes; applying the patch elements (110) on a shoe-last corresponding to the reference digital data and in accordance with said patch positions so as to obtain a modified shoe-last.
11. The system (100) of claim 10, wherein said patch elements (110) are detachable from the shoe-last.
12. The system (100) of claim 10, wherein said patch elements (110) are made by a first material having mechanical features allowing the use of the modified shoe-last in a shoe manufacturing process.
13. The system of claim 12, wherein said first material is different from a second material employed to manufacturing said shoe-last.
14. The system (100) of claim 10, further comprising: a spray head (111) configured to perform a spray-coating technique to cover at least said patch elements (110) with a coating made by a coating material compatible with said shoe manufacturing process.
15. The system of claim 10, wherein: said patch elements are made by a material chosen among the following materials: thermoplastic powders, composite plastic powders, nano-composite plastic powders; and said at least one manufacturing apparatus is configured to operate according one of the following techniques: fused deposition modeling; PoLyJet, Stereolithography combined with Digital Light Processing.