초록 ▼

A spear tube comprises a body connected with a keg neck interface of the beer keg. A gas valve, a down tube and a beer valve installed in the down tube are fittingly connected to the body. A stopper prevents the spear tube from popping out from the beer keg during detaching operation. A stopper port

A spear tube comprises a body connected with a keg neck interface of the beer keg. A gas valve, a down tube and a beer valve installed in the down tube are fittingly connected to the body. A stopper prevents the spear tube from popping out from the beer keg during detaching operation. A stopper portion of the stopper is formed protruding in the obliquely upward direction to penetrate a side hole of the body and has a cross-section a predetermined curvature shape. Therefore, the stopper functions to prevent the popping-out of the spear tube and is improved in its durability.

대표청구항 ▼

[ What is claimed is:] [8.] A spear tube for a beer keg, said spear tube comprising:a cylindrical body connected with a keg neck interface of the beer keg, said body having a side hole formed at a cylindrical wall thereof and an inner step formed at an inside thereof;a gas valve fittingly connected

[ What is claimed is:] [8.] A spear tube for a beer keg, said spear tube comprising:a cylindrical body connected with a keg neck interface of the beer keg, said body having a side hole formed at a cylindrical wall thereof and an inner step formed at an inside thereof;a gas valve fittingly connected with an inside wall of said body;a first coil spring disposed in said body;a down tube including a flange portion and an enlarged portion continuous to the flange portion, the flange portion being pushed by said first coil spring so that the flange portion is in contact with said gas valve, said down tube;a beer valve disposed in said down tube and in contact with said gas valve;a second coil spring disposed in the enlarged portion of said down tube and pushing said beer valve toward said gas valve;a stopper including a ring portion which is connected to said down tube and an arm portion which is bent from the ring portion and extends downward from the ring portion, the arm portion having generally U-shaped slit which defines a stopper portion on the arm portion, the stopper portion being formed bent in cross section to have a predetermined curvature for reinforcing and protruding in the obliquely upward direction while penetrating the side hole of said body, a cross-section of the stopper portion being formed to have a predetermined curvature for reinforcing.