Abstract: A pipe joint has a body, and an annular packing is mounted to the opening of the body into which a fluid tube is inserted. The packing is provided with: a body section having a substantially rectangular cross-sectional shape; and a seal section protruding in the radial direction from the inner peripheral surface of the body section. The seal section is formed at substantially the center of the body section in the widthwise direction thereof and is formed in a triangular cross-sectional shape tapering to the inner peripheral side. When the fluid tube is inserted in the opening, the seal section of the packing makes sliding contact with the outer peripheral surface of the fluid tube.

Abstract: A pipe joint (10) has a body (12), and an annular packing (26) is mounted to the opening (20) of the body into which a fluid tube (18) is inserted. The packing (26) is provided with: a body section (34) having a substantially rectangular cross-sectional shape; and a seal section (38) protruding in the radial direction from the inner peripheral surface of the body section (34). The seal section (38) is formed at substantially the center of the body section (34) in the widthwise direction thereof and is formed in a triangular cross-sectional shape tapering to the inner peripheral side. When the fluid tube (18) is inserted in the opening (20), the seal section (38) of the packing (26) makes sliding contact with the outer peripheral surface of the fluid tube (18).

Abstract: The present invention provides a device which prevents loud snoring and apnea during sleep so as not to cause discomfort to a user as much as possible. Stoppers 4 such as belts or straps having predetermined elasticity are attached to both right and left sides of a lower jaw fitting piece 3 which fits the both sides of the lower jaw, the lower jaw 2 is pushed forward via the lower jaw fitting piece 3 by setting and hanging the stoppers 4 on the nose or head of the face side, whereby occurrence of apnea and loud snoring during sleep is prevented.