REVERSE TYPE STAMP

[Object] To provide a reverse type stamp capable of preventing a pad from being sagged while ensuring the airtightness of an ink pad. [Solving Means] A reverse type stamp (10) includes an outer cylindrical body (30), an inner cylindrical body (20) which is movable relative to the outer cylindrical body, an elastic member (60) that constantly urges the inner cylindrical body in a protruding direction inside the outer cylindrical body, an inversion body (40) which is reversed and returned in synchronization with the relative movement, and a print body (41) which is joined to the inversion body. When the outer cylindrical body is pressed down while the inner cylindrical body stands on a paper surface, the inversion body is reversed inside the inner cylindrical body for an imprinting operation. . the inner cylindrical body (20) has an ink cartridge (50) therein, and wherein an inner portion of the ink cartridge (50) is sealed by a sealing member (43) provided at the inversion body (40) and a sealed surface (51a) of the ink cartridge (50) receiving the sealing member (43) is formed in a tapered shape. An ink pad (52) may be provided inside a movable container (53) inside a cartridge (50). The movable container is elastically supported inside the cartridge by a coil spring (54) provided at a rear surface thereof. Since a contact between the ink pad and the print body is buffered, the sagging of the ink pad can be prevented.