| 摘要 |
PCT No. PCT/SE89/00280 Sec. 371 Date Feb. 18, 1991 Sec. 102(e) Date Feb. 18, 1991 PCT Filed May 19, 1989 PCT Pub. No. WO90/14649 PCT Pub. Date Nov. 29, 1990.The invention relates to an anti-theft device for spectacle frames, which consists of an elongate body (10, 11) to be clamped to one bow of the spectacle frame, said body comprising a sleeve (10) open at one end thereof and having a transverse aperture (12) to receive therein the bow. Furthermore, said body is provided with a sensor (33) affecting an anti-theft system. A slide (15) displaceable longitudinally of the sleeve can be adjusted for engagement and disengagement of the bow by a screw (18) locked against axial displacement in the sleeve. The screw can be operated manually when the anti-theft device is to be mounted and demounted by a special tool only, which can be inserted into the sleeve through the open end thereof to engage an engagement element (22) of the screw located inside the sleeve.
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