US 12,443,050 B2
Snap-fit device for spectacle lens and spectacle frame
Pen-Wei Chen, Tainan (TW)
Assigned to Prohero Group Co., Ltd., Tainan (TW)
Filed by PROHERO GROUP CO., LTD., Tainan (TW)
Filed on Jul. 20, 2022, as Appl. No. 17/869,271.
Claims priority of application No. 110210958 (TW), filed on Sep. 15, 2021.
Prior Publication US 2023/0078267 A1, Mar. 16, 2023
Int. Cl. G02C 1/04 (2006.01); G02C 5/02 (2006.01); G02C 5/06 (2006.01); G02C 5/22 (2006.01)
CPC G02C 1/04 (2013.01) [G02C 5/02 (2013.01); G02C 5/06 (2013.01); G02C 5/22 (2013.01); G02C 2200/04 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A snap-fit device for spectacle lens and spectacle frame, comprising:
a spectacle frame formed in a half-frame shape, and a lens assembly portion formed on the spectacle frame to extend between two opposing ends thereof, and a first locking portion and a second locking portion formed on the two opposing ends the spectacle frame, respectively, wherein each of the first and second locking portions is formed at the respective end of the spectacle frame to be in communication with a corresponding section of the lens assembly portion, wherein the lens assembly portion includes an embedding groove extending along a periphery of the spectacle frame between the two opposing ends thereof to communicate with a corresponding one of the first and second locking portions, the first locking portion including a first assembly groove formed at a corresponding inner surface of the spectacle frame for being intersected with a corresponding section of the embedding groove to thereby form a first cut at a portion of an intersection of the first assembly groove and the embedding groove, the first locking portion, further, including a first latching member disposed in the first assembly groove and the first latching member including at least a first sidewall portion formed within the first assembly groove to thereby be disposed internally with respect to the spectacle frame, wherein the first sidewall portion is pivotally connected to the first assembly groove at an end of the first latching member, and the first latching member, further, including a first gap formed within the first latching member to be correspondingly shaped with the first cut, wherein the first gap is formed at an end of the first latching member opposed to the end at which the first latching member is pivotally connected with the first assembly groove, wherein the first sidewall portion of the first latching member includes a first elastic portion arranged at a side portion thereof, the first elastic portion being formed through only the corresponding side portion of the first sidewall portion, thereby only the portion of the first sidewall portion through which the first elastic portion is formed is elastic, and a first pressing portion is formed on a surface of the first latching member physically separated from the first sidewall portion, wherein the first pressing portion protrudes out of an opening formed at an open side section of the first assembly groove; and
a lens configured to be arranged at the lens assembly portion of the spectacle frame whereby an upper edge and two opposing sides of the lens are embedded in the embedding groove of the lens assembly portion, wherein the lens has a first locking slot and a second locking slot, respectively, formed on the two sides of the lens, wherein the second locking slot of the lens is configured to be engaged with the second locking portion of the spectacle frame, wherein the side of the lens formed with the first locking slot is configured to initially pass through the first cut and the first gap for responsively positioning the first locking slot at least in the first assembly groove of the spectacle frame whereby the first latching member is resiliently engaged with a corresponding section of the first locking slot.