Title:
RIM LOCK STRUCTURE OF EYEGLASS FRAME AND METHOD FOR MANUFACTURING THE SAME
Document Type and Number:
WIPO Patent Application WO/2011/007421
Kind Code:
A1
Abstract:
The rim lock structure of an eyeglass frame comprises, in eyeglasses provided with a thin-sheet frame, an upper projection piece and a lower projection piece formed to extend from the respective ends of an upper rim and a lower rim, an armor attaching portion formed continuously, through a U-bend, at a coupling piece which is formed to extend from the end of the upper rim in parallel with the upper projection piece, an engaging portion formed to extend from the end of a lower rim in parallel with the lower projection piece, and a member for coupling the upper projection piece with lower projection piece. A method for manufacturing the rim lock structure of an eyeglass frame comprises a step for cutting out a frame body and a rim lock structure continuous thereto from one thin plate, a step for bending the frame body, a step for bending the rim lock structure, a step for separating the upper portion from the lower portion of the rim lock structure, and a step for boring the rim lock structure at the predetermined point thereof.
Inventors:
MASUNAGA SATORU (JP)
Application Number:
PCT/JP2009/062751
Publication Date:
January 20, 2011
Filing Date:
July 14, 2009
Export Citation:
Assignee:
MASUNAGA OPTICAL MFG CO LTD (JP)
MASUNAGA SATORU (JP)
MASUNAGA SATORU (JP)
International Classes:
G02C1/00; G02C5/00
Domestic Patent References:
| WO2000043824A1 | 2000-07-27 |
Foreign References:
| JPH08227057A | 1996-09-03 | |||
| JP2001133731A | 2001-05-18 | |||
| JPH0933862A | 1997-02-07 | |||
| JP2000162558A | 2000-06-16 |
Attorney, Agent or Firm:
TANI Yoshikazu et al. (JP)
Valley Yoshikazu (JP)
Valley Yoshikazu (JP)
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