Tire vulcanizer and method for assembling tire vulcanizer

A method for assembling a tire vulcanizer that shapes and vulcanizes a tire,

• the tire vulcanizer including:
• a sector that shapes a tread of the tire and is divided in a tire circumferential direction;
• a segment, to which the sector is fixed, and which causes the sector to move in a tire radial direction;
• a bolt that is inserted in a bolt hole from an outer side in the tire radial direction so as to fix the sector to the segment, the bolt hole penetrating the segment in the tire radial direction;
• a ring-shaped jacket ring that is provided on an outer side in the tire radial direction of the segment;
• paired upper and lower side plates that shape sidewalls of the tire;
• paired upper and lower attachment plates that are respectively fixed to the paired upper and lower side plates and support the segment in a manner to allow sliding of the segment;
• and
• mold parting surfaces that are defined by the sector and the paired upper and lower side plates,
• mold inner ends of the mold parting surfaces being arranged on the tread, and the mold parting surfaces extending outward in the tire radial direction from the mold inner ends,
• the segment being provided such that a fixing position of the sector can be adjusted in a vertical direction, and
• the jacket ring having:
• a through hole that penetrates the jacket ring in the tire radial direction;
• and a tapered surface as an inner circumferential surface that extends outward in the tire radial direction as advancing downward, and moving downward with respect to the segment to cover an outer side in the tire radial direction of the segment, so as to make the segment move inward in the tire radial direction, to make the adjacent sectors in the tire circumferential direction tightly contact each other, and to make the through hole communicate with the bolt hole,
• the method for assembling a tire vulcanizer comprising:
• temporarily fixing the sector to the segment by the bolt;
• supporting the segment, to which the sector is temporarily fixed, on paired upper and lower attachment plates that are respectively fixed to the paired upper and lower side plates;
• and
• adjusting a vertical position of the sector with respect to the segment in a state where the jacket ring covers an outer side in the tire radial direction of the segment and makes the adjacent sectors in the tire circumferential direction tightly contact each other, and screwing the bolt to fix the sector to the segment.