Title:
プレートを切断して腕時計の風防を作る方法
Document Type and Number:
Japanese Patent JP6546331
Kind Code:
B2
Abstract:
A method for cutting watch crystals along a plurality of contours in a plate of transparent material includes forming a first cut line or kerf to form a first chamfer for each of the crystals of the plate and marking at least one machined recess on a first side of the plate, turning the plate over and marking at least one of the position of the first chamfer and the position of the at least one machined recess, forming a second cut line or kerf to form a second chamfer for each of the crystals on a second side of the plate, and separating the crystals by machining through the plate at each of the contours to form edges of the crystals.
Inventors:
Jean-Luc Bazan
Martin Gyun-Seche
Martin Gyun-Seche
Application Number:
JP2018176931A
Publication Date:
July 17, 2019
Filing Date:
September 21, 2018
Export Citation:
Assignee:
The Swatch Group Research and Development Limited
International Classes:
G04B39/00; B23K26/38; B24B27/06; B24B53/00; B28D1/18; B28D1/22; G04D3/06
Domestic Patent References:
| JP59178385A | ||||
| JP6270241A | ||||
| JP2003529521A | ||||
| JP5551385A |
Attorney, Agent or Firm:
Shigeki Yamakawa
Masaki Yamakawa
Masaki Yamakawa