Operating device, information processing terminal including the operating device, and assembly method for the operating device and the information processing terminal

An assembly method for an operating device, comprising:

• a stacking process of stacking a contact terminal sheet including a plurality of contact terminals, a flexible wiring member including a plurality of land parts and wire parts, and a plate-like frame supporting the contact terminal sheet and the flexible wiring member;
• a folding process of folding a contact terminal folded part, which is provided in the contact terminal sheet and includes a contact terminal for a side surface, corresponding to a side surface operation part disposed in a side surface of the device, and a land folded part, which is provided in the flexible wiring member and includes the land part connected to the contact terminal for a side surface, so that the contact terminal folded part and the land folded part are supported by a receiving part for a side surface formed by folding the frame which receives a pressing operation to the side surface operation part;
• and
• an extension part folding process for, after the folding process, folding an extension part, provided on a front end side of the contact terminal folded part, at a front end part of the operation receiving part for a side surface so that the extension part covers the front end part.