Hose assembly

A hose assembly comprising:

• a hose;
• and
• a joint member integrated with the hose,
• wherein
• the joint member includes an inner unit to be arranged on an inside of the hose,
• the hose includes a hose main body and a lip,
• the hose main body includes a groove portion and a protrusion portion formed in a spiral shape on an inner surface thereof,
• the lip includes a first end portion and a second end portion aligned in an axial direction of the hose, and the lip is spirally provided on the inner surface of the hose main body to cover the groove portion,
• the first end portion includes a fixed end integrated with the protrusion portion,
• the hose further includes a first region and a second region adjacent to the first region in the axial direction of the hose, the first region including an end portion of the hose fitting to the inner unit of the joint member and a portion of the hose being provided next to the end portion and extending out from the inner unit,
• the lip further includes
• a portion positioned within the first region, and
• a portion different from the part of the lip positioned within the first region positioned within the second region, and
• the second end portion includes a fixed end integrated with the protrusion portion within the first region, and a free end not integrated with the protrusion portion within the second region.