Being air supply and exhaust structure of the air injection section which the air air supply and exhaust is done vis-a-vis the air supply and exhaust structure of the air injection section, the air supply structure of the air injection section,

摘要

PROBLEM TO BE SOLVED: To provide a play pool, easily supplying and/or discharging air to/from an air filling part.;SOLUTION: The pool includes: a pump housing part 300 disposed to the air filling part 200; an air supply/discharge port 330 disposed at the bottom of a pump connection part 320 of the pump housing part 300; a seal member 350 disposed in the air filling part 200 to open/close the air supply/discharge port 330; a suspension member 340 suspended from an edge part of the air supply/discharge port 330; a projection member 360 disposed to the seal member 350 and movably inserted into a hole part 341 of the suspension member 340; and a coil spring 370 interposed between an outer peripheral part of the hole part 341 of the suspension member 340 and a flange 363 of the projection member 360 to bias the seal member 350 in the closing direction.;COPYRIGHT: (C)2011,JPO&INPIT