PURPOSE: To enable a caulking nozzle to be inclined laterally or obliquely by a required angle, and ensure that an object can be properly caulked even in a narrow space by a method wherein a caulking joint to be inserted between a caulking agent container and a caulking nozzle is made of a bend.

CONSTITUTION: A caulking joint is inserted between a caulking agent container and a caulking nozzle, In this case, the joint is made of a bend. Namely, a joint of a bending angle of 90° and a joint 11 of a bending angle of 135° are separately prepared. The inner surface of the base end of each of the joints is threaded to have a female screw 15 to be engaged with a male screw on the outer surface of the mouth part of the caulking agent container. The outer surface of the top of each of the joints is threaded to have a male screw 14 to be engaged with a female screw on the caulking nozzle. In this manner, the caulking nozzle can be inclined by an angle of 90° or 45° with respect to the longitudinal direction of the caulking agent container. Therefore, the caulking nozzle can be correctly directed to an object to be caulked even in a narrow working space.