Patent ID: 11913263
Assignee: PIOLAX, INC.
Field: Civil engineering (Other fields)
Classification: CPC E  B | IPC B  E

Claim 0:
1. A lock device for an opening and closing body that is attached to an opening portion of a fixed body in an openable and closable manner, the lock device comprising:
a lock portion provided on the opening portion of the fixed body or the opening and closing body;
a lock member configured to operate via an operation member to be engaged with or disengaged from the lock portion;
a base member having a rotation support portion rotationally supporting the operation member; and
a key cylinder capable of keeping or releasing a locked state of the lock member to the lock portion, wherein
the operation member includes a base end portion rotationally supported to the rotation support portion, a gripping part provided on a tip end-side and a tubular cylinder accommodation part accommodating the key cylinder, and is configured to slide the lock member in a direction of not engaging with the lock portion by a rotation of the gripping part in a direction of separating from the base member,
the base member includes a cylinder arranging space in which the cylinder accommodation part is arranged, a wall part located on a tip end-side of the operation member, and an opening formed in the wall part and communicating with the cylinder arranging space,
the key cylinder includes a main body part accommodated in the cylinder accommodation part and extending in an axial direction and a key plate protruding and urged in a radially outer direction of the main body part and configured to engage with an opening portion on a rear side of the cylinder accommodation part to prevent the main body part from coming off,
the key plate includes a pressing surface configured to be pressed against an urging force of the key plate to enable the key plate to be pushed in a direction of not engaging with the opening portion on the rear side of the cylinder accommodation part, and the pressing surface is exposed into the cylinder arranging space and is arranged on a further base end portion-side of the operation member than an edge portion of the opening of the wall part, and
the opening has a closed periphery.