Patent ID: 7828266

Claim:
A compressed air taking out apparatus comprising: a low-pressure coupler; a high-pressure coupler; and a plug, wherein each of the low-pressure coupler and the high-pressure coupler includes: a partition that partitions a supply side from which a compressed air is supplied and a receive side to which the compressed air is fed; a valve body for opening/closing an opening portion of the partition, arranged in the supply side of the partition, and urged in a direction to close the opening portion; a stem provided on the valve body and protruding to the receive side through the opening portion; a cylinder portion formed around the partition; a locking mechanism provided in a vicinity of an end portion of the cylinder portion and for stopping a movement of the plug; and a movable sleeve provided on an inside of the cylinder portion, having a projection portion on an inner surface, and capable of sliding in an axial direction, wherein the plug includes: a projecting surface that is capable of engaging with the projection portion; and an engaging portion that is capable of engaging with the locking mechanism wherein the cylinder portion includes a first cylinder portion and a second cylinder portion, the first cylinder portion is formed around the partition, the second cylinder portion is formed around the first cylinder portion, and the movable sleeve is arranged between the first cylinder portion and the second cylinder portion.