US 7,611,240 B2
	Frame for spectacles having arms that can be opened out resiliently
Vittorio Tabacchi, Pieve Di Cadore (Italy)
Assigned to Safilo Societa Azionaria Fabbrica Italiana Lavorazione Occhiali, Pieve Di Cadore (Italy)
Appl. No. 11/663,235 PCT Filed Sep. 27, 2004, PCT No. PCT/IT2004/000523 § 371(c)(1), (2), (4) Date Mar. 19, 2007, PCT Pub. No. WO2006/035461, PCT Pub. Date Apr. 06, 2006.
Prior Publication US 2008/0094569 A1, Apr. 24, 2008
Int. Cl. G02C 5/16 (2006.01); G02C 5/22 (2006.01)

U.S. Cl. 351—113  [351/111; 351/153]

20 Claims

1. A frame for spectacles having arms that can be opened out resiliently, comprising at least one lug and at least one arm which is articulated to the lug by a tie rod hinged to the lug and slidingly associated with the arm, resilient means being active between the arm and the tie rod to urge the arm towards the lug, and the resilient means comprise at least one helical spring extending along a substantially longitudinal axis (K), corresponding to the direction of application of the resilient urging, and axes (L) of the turns of the spring being inclined with respect to the longitudinal axis (K) to confer on the spring a substantially flattened configuration transverse to the longitudinal axis.