LOCK DEVICE FOR OPENING/CLOSING BODY

A lock device for an opening and closing body includes: a base member; and an operating member. The operating member includes an operating plate portion, an operating portion, a first load transmission wall portion, a stopper portion, and a second load transmission wall portion. The second load transmission wall portion has a base end connected to the first load transmission wall portion and/or the stopper portion, and includes an extension portion including a portion obliquely extending toward the operating plate portion and a connecting portion that connects the extension portion to the operating plate portion. A gap is formed between the first load transmission wall portion, the extension portion and the connecting portion of the second load transmission wall portion, and the operating plate portion.