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A screw connection including a sealing ring, a connecting piece, and a union nut for assembling a tube connector. The sealing ring has a nut side portion with an annular reinforcement on its outer face, a narrow ring portion, a ring surface with transfer elements arranged on its annular face located

A screw connection including a sealing ring, a connecting piece, and a union nut for assembling a tube connector. The sealing ring has a nut side portion with an annular reinforcement on its outer face, a narrow ring portion, a ring surface with transfer elements arranged on its annular face located at the transition between the narrow ring portion and the nut side portion, and at least one cutting edge on its interior surface. The annular face having an inclination between 45° and 90° relative to the longitudinal axis of the tube connection. The connecting piece has an end face located at a first axial end and a conical bore disposed within. When fully assembled, the narrow ring portion is positioned with said conical bore, contacts the connecting piece, and transfers a negative image of the transfer elements on the ring surface onto the connecting piece end face.

대표청구항 ▼

A screw connection including a sealing ring, a connecting piece, and a union nut for assembling a tube connector. The sealing ring has a nut side portion with an annular reinforcement on its outer face, a narrow ring portion, a ring surface with transfer elements arranged on its annular face located

A screw connection including a sealing ring, a connecting piece, and a union nut for assembling a tube connector. The sealing ring has a nut side portion with an annular reinforcement on its outer face, a narrow ring portion, a ring surface with transfer elements arranged on its annular face located at the transition between the narrow ring portion and the nut side portion, and at least one cutting edge on its interior surface. The annular face having an inclination between 45° and 90° relative to the longitudinal axis of the tube connection. The connecting piece has an end face located at a first axial end and a conical bore disposed within. When fully assembled, the narrow ring portion is positioned with said conical bore, contacts the connecting piece, and transfers a negative image of the transfer elements on the ring surface onto the connecting piece end face. ding portion. 9. The air belt of claim 5, wherein the non-expanding portion is connected to a retractor. 10. An air belt comprising: a belt including a hollow expandable portion which is able to expand, a non-expanding portion, and a middle portion positioned between the expandable portion and the non-expanding portion; and a bag which is contained n the expandable portion of said belt, and in which a gas is injected so as to expand the air belt, wherein said belt is constructed by continuously and integrally forming the expandable portion, the non expanding portion, and the middle portion with a woven or knit fabric having yarns that continue from the non-expanding portion into the expandable portion, wherein the non-expanding portion is solid, and wherein the middle portion includes two layers of fabric converging together adjacent the non-expanding portion. 11. An air belt comprising: a belt including a hollow expandable portion which is able to expand, and a non-expanding portion; a bag which is contained in the expandable portion of said belt, and in which a gas is injected so as to expand the air belt; and a retractor, wherein said belt is constructed by continuously and integrally forming the expandable portion and the non expanding portion with a woven or knit fabric having yarns that continue from the non-expanding portion into the expandable portion, wherein the non-expanding portion is adapted to be wound into the retractor, and wherein a weft yarn is inserted through the fabric of the non-expanding portion to prevent the non-expanding portion from being wound into the retractor in a meander shape or in a conical shape. 12. The air belt of claim 11, wherein the weft yarn is inserted only through the non-expanding portion of the belt in a back and forth pattern in the lateral direction between one end and another end of the non-expanding portion.