Title:
A STRETCHABLE DOUBLE-LAYER SPECTACLE FRAME
Document Type and Number:
WIPO Patent Application WO/2009/079943
Kind Code:
A1
Abstract:
A stretchable double-layer spectacle frame, comprises lenses (1), a crossbeam (2) and a connecting element (3) connecting with the lenses (1), a reset spring (21) provided between the crossbeam (2) and the connecting element (3), and hooks (4) provided at the outside corners of the lenses (1). A containing cavity (22) is provided in the crossbeam (2). A stretching strip (23) and a locating block (24) are provided in the containing cavity (22). The stretching strip (23) can glide in the locating block (24) without relative rotation. The locating block (24) is fit in interferentially with a through hole (221) of the containing cavity (22). Theend of the stretching strip (23) in the containing cavity (22) is a moving end connecting with the connecting element (3) fixedly. The other end of the stretching strip (23) is a spring base (231). A spring (21) is provided between the spring base (231) and the locating block (24).
Inventors:
XIE YILING (CN)
Application Number:
PCT/CN2008/072482
Publication Date:
July 02, 2009
Filing Date:
September 24, 2008
Export Citation:
Assignee:
XIE YILING (CN)
International Classes:
G02C9/04; G02C5/04; G02C5/06
Foreign References:
| CN1300628C | 2007-02-14 | |||
| CN2264919Y | 1997-10-15 | |||
| CN2396407Y | 2000-09-13 | |||
| CN201156115Y | 2008-11-26 | |||
| CN2522897Y | 2002-11-27 | |||
| CN1153084C | 2004-06-09 |
Attorney, Agent or Firm:
XIAMEN SHINHWA PATENT & TRADEMARK AGENCY CO., LTD. (Hubin East RoadXiamen, Fujian 4, CN)
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