Abstract: A pressurizing device comprising a connection mechanism (5) capable of connecting an output shaft (2) to an input shaft (3) so that they are not moved relative to each other and a fluid pressure mechanism (6) capable of hydraulically connecting the output shaft (2) to the input shaft (3) and increasing the energization of the input shaft (3) by the Pascal's principle when the output shaft (2) and the input shaft (3) are moved relative to each other to pressurize the output shaft (3) with high thrust. The connection mechanism (5) detects the contact of the output shaft (2) on the pressurized object and releases the connection of the output shaft (2) to the input shaft (3).

Abstract: A pressurizing device comprising a control mechanism (7) which maintains the opening of a communication passage (22a) which allows the fluid pressure mechanism (6) to communicate with the outside when the fluid pressure mechanism is connected by a connection mechanism (5) and closing the communication passage (22a) by detecting the flow of a fluid in the fluid pressure mechanism (6) when the fluid is pushed to the outside by the energization of an input shaft (3) when the connection by the connection mechanism (5) is released so as to isolate the fluid pressure mechanism (6) from the outside.