| 摘要 |
<p>When an operating pedal 14 and a pivot member 18 are connected by connecting links 20a and 20b, with shafts 44 of connecting pin 38 and 40 passing through connecting sections 34 and 36, tip portions thereof are subjected to a plastic deformation processing. As a result, each of the tip ends is increased in a diameter by a plastic deformation to form a disengagement-preventing portion 46, such that a gap p is formed between the connecting sections 34 and 36, and the disengagement-preventing portions 46. Accordingly, unlike the conventional ordinary caulking, owing to presence of the gap Á, a relative pivotal movement of the members at the connecting section 34 and 36 is allowed. Thus, the disengagement-preventing process, that is the roll caulking, of the connecting pins 38 and 40 can be easily automated. Further, the disengagement-preventing member such as the E ring is not required, and a slot or the like for installing the disengagement-preventing members on the shafts 44 of the connecting pins 38 and 40 does not have to be formed. Accordingly, the link connecting structure can be constructed with a small number of members at low cost.</p> |
