US Patent 10948084 Jig for press-fitting divided sealing ring

In a jig for press-fitting a divided sealing ring, while a sleeve is attached to a first rod head, a guide region leading to a recess is defined between an inner circumferential surface of the sleeve and a rod. When a divided sealing ring attached to an outer circumferential surface of the rod is press-fitted to a prescribed position in the recess by passing the divided sealing ring through the guide region by using a plunger, positioning engagement regions engaged with each other are provided between the sleeve and the plunger.