US 12,460,456 B2
Latch mechanism and device including latch mechanism
Michiaki Yoshida, Kanagawa (JP); Wataru Nakamura, Kanagawa (JP); Keigo Shinoto, Kanagawa (JP); and Akira Ueshima, Kanagawa (JP)
Assigned to FUJIFILM Business Innovation Corp., Tokyo (JP)
Filed by FUJIFILM Business Innovation Corp., Tokyo (JP)
Filed on Apr. 8, 2022, as Appl. No. 17/715,966.
Claims priority of application No. 2021-213124 (JP), filed on Dec. 27, 2021.
Prior Publication US 2023/0203859 A1, Jun. 29, 2023
Int. Cl. E05C 1/08 (2006.01); E05C 1/00 (2006.01); G03G 21/16 (2006.01)
CPC E05C 1/08 (2013.01) [E05C 1/004 (2013.01); G03G 21/1633 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A latch mechanism comprising:
a main body engagement unit arranged in a main body having an opening or closing body that may open and close; and
an opening or closing body engagement unit arranged in the opening or closing body to engage with the main body engagement unit when the opening or closing body is closing, wherein the main body engagement unit is configured to include a first engagement body having a pair of first top portions displaceable in a direction orthogonal to a closing direction of the opening or closing body,
the opening or closing body engagement unit is configured to include a pair of second engagement bodies, the pair of second engagement bodies having a pair of second top portions, wherein the pair of second top portions respectively coming into contact with the pair of first top portions, and
when one of the pair of second top portions comes into contact with one of the pair of first top portions while the opening or closing body is closing, the other of the pair of the first top portions applies a force in an opening direction of the opening or closing body to a first slope of the pair of second engagement bodies in a state where the other of the pair of first top portions is in contact with the other of the pair of second top portions,
wherein one of the pair of second engagement bodies has a second slope that receives a force in a direction in which one of the pair of second engagement bodies close the opening or closing body by coming into contact with the one first top portion after the one first top portion passes through the one second top portion while the opening or closing body is closed, and
the pair of second engagement bodies have a surface portion extending from the other second top portion to a side opposite to the first slope along the opening direction of the opening or closing body, wherein one of the pair of second top portions comprises an ascending slope and the second slope which is an descending slope in reference to a closing direction of the opening or closing body, and the other one of the pair of the second top portions comprises the first slope which is ascending in reference to the closing direction of the opening or closing body and does not comprise a descending slope.