Abstract: A system including control devices configured to perform nth-order transmission, each control device including: a storage device storing, in relation to the control devices, a source list being a list of the control devices to be passed through from a most upstream control device to the control device and a destination list being a list of the control devices to be passed through from the control device to a most downstream control device; and a processor performing processing including: when an update request including a first source list of a first control device is received, updating the source list using the update request, generating a new update request using the updated source list, and transmitting the new update request to a second control device; and when a completion response including a second destination list of the second control device is received, updating the destination list using the completion response.

Abstract: A rotor core includes a shaft hole, into which a shaft is inserted, and keys, which are protrusions corresponding to keyways of the shaft. A radial distance, which is the distance from the center of the shaft hole to an inner wall varies depending on the position in the circumferential direction of the shaft hole. The shaft hole includes key regions and increased diameter regions, in each of which the radial distance is longer than the radius of the shaft. Keys are respectively arranged in the key region. The shaft hole also includes contact regions, in which the shaft and the inner wall come into contact with each other when the shaft is inserted into the shaft hole. The contact regions are each located between the key regions or between the increased diameter regions. The contact regions are arranged at equal intervals in the circumferential direction.

Abstract: Maternity pads for absorbing excess mother milk spilled out are manufactured in a single assembly line, in which rolls of absorbent materials drawn out forward and stacked one upon another are die-cut into disks, which are then sent forward and placed onto a web of waterproof paper traveling ahead, while being covered by a web of covering material traveling in the same direction. The outside of the disks of absorbent materials are sealed and die-cut to obtain disks with the absorbent materials wrapped up in the waterproof paper and covering material. The disks are then transported to a shaping unit where they are formed into bowl-shaped pads by means of pairs of male and female molds. The finished maternity pads are removed from the line by a discharge means.