US 12,442,215 B2
Lock core device based on matching multiple key cross-sectional shapes, its ball slot configuration method, and its corresponding locking key
Chao-Ming Huang, Kaohsiung (TW); and Chi-Ming Chen, Kaohsiung (TW)
Assigned to Taiwan Fu Hsing Industrial Co., Ltd., Kaohsiung (TW)
Filed by TAIWAN FU HSING INDUSTRIAL CO., LTD., Kaohsiung (TW)
Filed on Apr. 21, 2023, as Appl. No. 18/304,554.
Claims priority of application No. 112104768 (TW), filed on Feb. 10, 2023.
Prior Publication US 2024/0271462 A1, Aug. 15, 2024
Int. Cl. E05B 27/00 (2006.01)
CPC E05B 27/0053 (2013.01) [E05B 27/0007 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A lock core device configured for matching multiple key cross-sectional shapes, the lock core device being adapted for use with a first lock key with a first section contour and a second lock key with a second section contour different from the first section contour of the first lock key, the lock core device comprising:
a lock cylinder including a keyway configured to separately receive each of the first lock key and the second lock key,
wherein a position of a toothed portion of the first lock key, when received in the keyway, is axially offset from a position of a corresponding toothed portion of the second lock key, when received in the keyway.