Patent ID: 7744272

Claim:
A portable apparatus comprising: an apparatus exterior having a through hole; a pipe having an outwardly arranged cylinder portion having a spring receiving face, and an inserting cylinder portion integral with the outwardly arranged cylinder portion, the inserting cylinder portion being inserted in the through hole and fixed to the apparatus exterior with the outwardly arranged cylinder portion disposed at an outer portion of the apparatus exterior; a push button including a shaft portion axially slidable in the pipe, a drawout preventing member attached to one end portion of the shaft portion inside the apparatus exterior for preventing the shaft portion from being drawn out from the pipe, and an operating head provided at the other end of the shaft portion outside of the apparatus exterior; a coil spring interposed between the operating head and the spring receiving face for urging the push button toward an outer side of the apparatus exterior; and a packing ring attached to either of the pipe and the push button within a range of a height of the coil spring for sealing an interval between the pipe and the push button.