Device for supplying tire-constituting member, method for supplying tire-constituting member, and method for manufacturing unvulcanized tire

A device for supplying a tire-constituting member which supplies a tire-constituting member to the front side of a molding drum, comprising:

• a placement portion to which the tire-constituting member is supplied from the rear side so as to be placed on the placement portion;
• a first holder which is disposed so as to hold a front end portion of the tire-constituting member and is disposed so as to be movable;
• and
• a second holder which is disposed so as to hold a rear end portion of the tire-constituting member cut to a predetermined length and is disposed so as to be movable;
• wherein the first holder and the second holder hold the tire-constituting member that is cut to the predetermined length and is positioned on the placement portion, and supply the tire-constituting member to the front side,
• the device further comprising:
• a detector configured to detect positions of two corner portions of the front end portion of the tire-constituting member placed on the placement portion;
• and
• a control unit which calculates a deviation amount of the two corner portions of the front end portion with respect to two preset reference positions of the two corner portions of the front end portion of the tire-constituting member according to data from the detector and drives the first holder in a state where the rear end portion of the tire-constituting member is held by the second holder such that the two corner portions of the front end portion of the tire-constituting member are positioned at the two reference positions of the two corner portions of the front end portion so as to eliminate the deviation amount of the two corner portions of the front end portion according to the calculation results.