| 摘要 |
Its an object of the present invention to ensure a contact area between clamping surfaces 10b of a pair of clamping plates 30a and 30b of a yoke 3b, and outside flat surfaces 14 of a shaft 7, to thereby prevent the occurrence of play in a joint section between the shaft 7 and the yoke 3b. If the minimum value for the width of clearances 16a is S (mm), and the angle formed between the clamping surfaces 10b and the outside flat surfaces 14 is ¸ (°), and the plate thickness of both clamping plates 30a and 30b is t (mm), ¸ and S are regulated to ensure that ¸/S ‰¥ - 8.5t + 67.2 is satisfied when the plate thickness t is within a range of between 5.5 mm and 7.5 mm. As a result, in a condition with both clamping plates 30a and 30b tightened together by a clamping bolt, the clamping surfaces 10b and the outside flat surfaces 14 are in almost complete contact. Therefore the problem can be solved. |
