Abstract: A tire gripping device includes a chuck mechanism having a pair of chuck portions adjacent in a width direction of a tire and contact members disposed on each of the chuck portions in a circumferential manner. The contact members are able to be brought into contact with an open end portion of a bead portion of the tire. The contact members are able to enter a state of allowing relative movement with a contact surface of an open end portion in a first contact stage and enter a state of non-relative movement with the contact surface in a second contact stage subsequent to the first contact stage. The tire gripping device further includes a first driving mechanism for moving the contact members in a radial direction of the tire and a second driving mechanism for moving the pair of chuck portions in the width direction of the tire.

Abstract: A method for inspecting engravings in a tire mold includes inputting in advance into a data processing device two-dimensional image master data of an engraving formed on a surface of a side plate in a plan view using basic data set as a reference, the image master data having a radial component and a radial position of the engraving corrected on the basis of a locus length in a radial direction of the surface of the side plate; generating two-dimensional image actual measurement data, the image actual measurement data having a radial component and a radial position of three-dimensional data acquired via actual measurement corrected on the basis of a radial locus length of a surface of a side plate on which actual measurement was performed; and determining whether or not an image shape and an image position of the image actual measurement data is within a tolerable range.

Abstract: A method for inspecting engravings in a tire mold includes inputting in advance into a data processing device two-dimensional image master data of an engraving formed on a surface of a side plate in a plan view using basic data set as a reference, the image master data having a radial component and a radial position of the engraving corrected on the basis of a locus length in a radial direction of the surface of the side plate; generating two-dimensional image actual measurement data, the image actual measurement data having a radial component and a radial position of three-dimensional data acquired via actual measurement corrected on the basis of a radial locus length of a surface of a side plate on which actual measurement was performed; and determining whether or not an image shape and an image position of the image actual measurement data is within a tolerable range.