US 12,392,170 B2
Lock mechanism of a storage box
Tsuyoshi Yamada, Tokyo (JP); and Takehiko Kikuchi, Tokyo (JP)
Assigned to HONDA MOTOR CO., LTD., Tokyo (JP)
Filed by HONDA MOTOR CO., LTD., Tokyo (JP)
Filed on Sep. 23, 2022, as Appl. No. 17/951,452.
Claims priority of application No. 2021-162264 (JP), filed on Sep. 30, 2021.
Prior Publication US 2023/0100618 A1, Mar. 30, 2023
Int. Cl. E05B 65/52 (2006.01); E05B 83/16 (2014.01)
CPC E05B 65/52 (2013.01) [E05B 83/16 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A lock mechanism of a storage box comprising a housing having an opening at a top part thereof and a lid member that is connected to the housing and movable so as to open and close, the lock mechanism being capable of securing and releasing a lock pin of the lid member with a rotational operation of a first cam member and a second cam member, wherein
the housing includes a cam support member for supporting the first cam member and the second cam member that are rotatable in opposite directions to each other, and a rotation lock plate for restricting rotational movements of the first cam member and the second cam member,
the second cam member includes a second protruding part that contacts the rotation lock plate,
the cam support member includes a contact part provided in a rotation range of the second protruding part and at a plane or a side of the cam support member facing against a rotational direction of the second cam member,
the lock pin is inserted into a first concave portion of the first cam member while the lid member is being closed,
a first engaging part of the first cam member engages with a second engaging part of the second cam member so as to lock the lid member,
the second cam member rotates, in a direction in which an engagement between the first engaging part and the second engaging part is released, while being pushed down by a lever of an operation member, and
when the operation member is operated in a state where the lock mechanism is locked, the second protruding part comes into contact with the rotation lock plate and the rotation lock plate comes into contact with the contact part so as to restrict the rotational movement of the second cam member.