Abstract: A link connecting structure of an operating pedal device for a vehicle includes a connecting pin used for at least one of connections of a connecting link to an operating pedal and to a pivot member, a disengagement-preventing portion formed by plastically deforming a tip portion of a shaft of the connecting pin passed through the connecting link and the operating pedal or the pivot member and a predetermined space formed between the connecting link with the operating pedal or the pivot member and the disengagement-preventing portion. The tip portion has a larger diameter locally than the initial diameter of the shaft. The predetermined space allows the connecting link and the operating pedal or the pivot member to be pivoted relative to each other.

Abstract: When the operating pedal and the pivot member are connected by the connecting links, roll caulking is performed on the tip portions of the shafts of the connecting pins, with the shafts passing through the connecting pin through holes of the connecting links, and also through the metal bush of the operating pedal or the metal bush of the pivot member. Accordingly, by plastic deformation, the tip portions have a larger diameter to give the disengagement-preventing portions, in such a manner that a predetermined space ? is formed between the disengagement-preventing portions and the components that are connected by the connecting pins, respectively. Consequently, unlike the conventional, ordinary caulking, owing to the presence of the space ?, relative pivotal movement is allowed between the components that are connected by the connecting pins. Therefore, the forming process of the disengagement-preventing portions for the connecting pins, that is, roll caulking, can be easily automated.