US 12,168,891 B2
Mechanical key and card key
Hideaki Hori, Aichi (JP); and Kenji Kaihara, Aichi (JP)
Assigned to KABUSHIKI KAISHA TOKAI RIKA DENKI SEISAKUSHO, Aichi (JP)
Appl. No. 17/800,332
Filed by KABUSHIKI KAISHA TOKAI RIKA DENKI SEISAKUSHO, Aichi (JP)
PCT Filed Mar. 19, 2020, PCT No. PCT/JP2020/012304
§ 371(c)(1), (2) Date Aug. 17, 2022,
PCT Pub. No. WO2021/186671, PCT Pub. Date Sep. 23, 2021.
Prior Publication US 2023/0062892 A1, Mar. 2, 2023
Int. Cl. E05B 49/00 (2006.01); E05B 19/00 (2006.01)
CPC E05B 49/002 (2013.01) [E05B 19/0082 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A mechanical key, comprising:
a key pattern recessed in the mechanical key in a thickness direction; and
key segments separable in the thickness direction, wherein
the key segments include:
a first key segment including a key pattern slit, wherein the key pattern slit extends through the first key segment in the thickness direction and is shaped in conformance with the key pattern, and wherein the first key segment includes a side wall of the key pattern defined by the key pattern slit, and
a second key segment including a bottom portion of the key pattern exposed from the key pattern slit of the first key segment in a state in which the key segments are combined to one another.