| 摘要 |
PROBLEM TO BE SOLVED: To keep a positional relation between the other side plate and the extremity end of the pin to be kept constant and keep welding quality for fixing the extremity end of the pin by keeping constant a fastening position between a head part of a pin used in a cage and one side plate.SOLUTION: This invention comprises a pair of annular side plates 11, 13 that are in parallel to each other and arranged concentrically in spaced-apart relation, a rod-like pin 15 installed between the pair of side plates and a pressing member 17 for pressing the pin. One end side of the pin is a head part 15a having an engaging part 15d engaged with one of the pair of side plates, the other end side thereof having a barrel part 15b placed between them is an extremity end 15c fitted to the other of the pair of side plates, one of the pair of side plates is provided with an engaged part to be engaged with the engagement part of the pin and a housing part 11a for housing the pressing member for pressing the pin head part engaged with the engaged part toward the engaged part. |
