A curing bladder (7) for a tire has a shape exhibiting symmetry of revolution with a central axis and comprises a flexible wall made of cross-linked rubber, the external surface (20) of the wall comprising an air drainage zone (21) and an air removal zone (22) adjacent to the drainage zone, the bladder (7) being equipped with an air drainage structure comprising elements recessed into the external surface, the recessed elements forming a network of channels (30) extending in the air drainage zone (21) and as far as the air removal zone (22). The depth of a channel (30) of the network, defining the shortest path (31) connecting any point of the network of channels, which is situated in the air drainage zone (21), and the air removal zone (22), increases along the length of the path.

The invention relates to a method for curing a tire, during which there is deployed, against the interior surface of said tire, a curing membrane of which the contact surface is provided with a drainage structure which comprises air-discharge channels and which is subdivided into a first drainage region which will be pressed intimately against the crown region of the tire, a second drainage region which will be pressed intimately against the sidewall region, and a third drainage region which will be pressed intimately against the bead region, and which is such that the mean depth of the channels of the third drainage region is strictly greater than the mean depth of the channels of the second drainage region, which is itself strictly greater than the mean depth of the channels of the first drainage region.

The present invention relates to the technical field of vulcanizing equipment, and in particular, to vulcanizing equipment, comprising: a vulcanizing mold in which a vulcanizing cavity is formed; a vulcanizing bladder suitable for being placed in the vulcanizing cavity; and a supporting assembly comprising a center rod and a clamping device arranged on the center rod, the clamping device being suitable for installing the curing bladder in the cavity in a sealed manner. The vulcanizing equipment further comprises: a heating assembly and a gas circulation assembly that are arranged in the curing bladder in a stacked manner in the axial direction of the center rod, the gas circulation assembly being suitable for circulating a heated heating medium in the curing bladder; and a driving assembly comprising a rotating shaft sleeve that is arranged on the outer side of the center rod in a clearance-fit manner and connected to the gas circulation assembly. The present invention provides vulcanizing equipment, which overcomes the defects in the prior art that the occupancy of too much space due to horizontal arrangement of curing bladder in equipment limits the processing specification of tires to be vulcanized, and is unfavorable to gas circulation in the curing bladder.

Techniques presented herein relate to vulcanizing equipment that includes a vulcanizing mold in which a vulcanizing cavity is formed, a vulcanizing bladder suitable for being placed in the vulcanizing cavity, and a supporting assembly that includes a center rod and a clamping device arranged on the center rod. The clamping device is suitable for installing the curing bladder in the cavity in a sealed manner. The vulcanizing equipment further includes a heating assembly and a gas circulation assembly that are arranged in the curing bladder in a stacked manner in the axial direction of the center rod. The gas circulation assembly is suitable for circulating a heated heating medium in the curing bladder. A driving assembly of the vulcanizing equipment includes a rotating shaft sleeve that is arranged on the outer side of the center rod in a clearance-fit manner and is connected to the gas circulation assembly.