Abstract: A sealing and pump-up device (10) includes: a liquid agent container (18) containing a sealing agent (32); an injection unit (20) that is connected to an outlet (29) of the liquid agent container (18) and has a liquid pressurization and supply chamber (40) and a jig insertion hole (44); a jig (82) that by insertion into the jig insertion hole (44) pierces an aluminum seal (30) by means of a piercing member (62) and closes off the jig insertion hole (44); and a leading end portion (85), of an insertion portion (84), having a step (85A) that catches on an edge (44B) of a jig insertion hole (44) before the jig (82) that has been inserted into the jig insertion hole (44) reaches a piercing position, when the aluminum seal (30) is pierced.

Abstract: A reliably operable sealing and pump-up device with simple jig installation and in which the jig does not come out even when subjected to pressure. The sealing and pump-up device 10 includes: a liquid agent container 18 containing a sealing agent 32; an injection unit 20 that is connected to an outlet 29 of the liquid agent container 18 and has a liquid pressurization and supply chamber 40 and a jig insertion hole 44; a jig 82 that by insertion into the jig insertion hole 44 pierces an aluminum seal 30 by means of a piercing member 62 and closes off the jig insertion hole 44; and a leading end portion 85, of an insertion portion 84, having a step 85A that catches on an edge 44B of a jig insertion hole 44 before the jig 82 that has been inserted into the jig insertion hole 44 reaches a piercing position, when the aluminum seal 30 is pierced. The jig 82 has simple installation and can be reliably operated because the jig 82 does not come out even when subjected to pressure.