Transport method, manufacturing method for disposable wearable article, as well as wearable article, and transport device

A method of manufacturing a disposable wearable article having a basic part and a processing part joined on the basic part, the method comprising:

• a web transport step of transporting a basic part web for forming the basic part;
• a processing part transport step of transporting the processing part from a predetermined receiving position to a predetermined transfer position, such that the processing part is received at the receiving position and transferred, at the transfer portion, onto the basic part web that is being transported in the web transport step;
• a joining step of joining the processing part to the basic part web;
• and
• a cutting step of cutting the basic part web to the basic part, wherein
• the processing part transport step includes:
• a speed varying step of varying a speed of a first holding portion between the receiving position and a predetermined relay position by means of a speed change mechanism, the first holding portion being configured to receive the processing part at the receiving position, the speed varying step being carried out by rotating, at constant speed, a drive wheel on which the first holding portion is supported via the speed change mechanism, the speed changing mechanism including a crank arm rotatably attached to the drive wheel, a link rotatably attached to the crank arm and the first holding portion, and a fixed member formed with a speed-changing cam groove for swinging the crank arm;
• a control step of controlling a speed of a servo motor for driving rotation of a second holding portion that is configured to hold the processing part, such that a speed of the second holding portion becomes a receiving speed at which the second holding portion is able to receive the processing part from the first holding portion at the relay position and becomes a predetermined transfer speed at the transfer position, and such that the second holding portion arrives at the relay position and at the transfer position at a predetermined cycle;
• and
• a speed changing step of changing the transfer speed while the cycle and the receiving speed are maintained, and wherein,
• in the web transport step, a transport speed of the basic part web is changed in accordance with the changed transfer speed after changing the transfer speed while the cycle and the receiving speed are maintained in the speed changing step.