公开(公告)号：US09120281B2

公开(公告)日：2015-09-01

申请号：US14345212

申请日：2012-09-24

Applicant: The Yokohama Rubber Co., LTD.

Inventor： Hajime Satoh ,  Tsuyoshi Nomaguchi

IPC: B29D30/06 ,  B29C43/36

CPC classification number: B29D30/0654 ,  B29C2043/3649 ,  B29D2030/0655 ,  B29D2030/0659

Abstract: By providing projections 4 extending intermittently or continuously on the inner wall face of the cylindrical shaped bladder 2 at an inclination to the circumferential direction thereof, during vulcanization of a green tire G when the inside of the bladder 2 is filled by injecting with hot water as heating medium H and pressurizing medium, or steam as heating medium H and a gas as pressurizing medium, the heating medium H is guided along the projections 4 and flows in the circumferential direction of the expanded bladder 2, and flows in a rotating motion in the vertical direction of the bladder 2, and as a result of the synergistic action of the circular flow of the heating medium H in the circumferential direction of the bladder and the rotating flow in the vertical direction of the bladder, the temperature difference of the bladder 2 is sufficiently reduced.

Abstract translation: 通过在圆筒形状的气囊2的内壁面上以与其周向倾斜的方式间断地或连续地延伸的突起4，在通过以热水注射填充气囊2的内部时，在生胎G的硫化期间 加热介质H和加压介质，或作为加热介质H的蒸汽和作为加压介质的气体，加热介质H沿着突起4被引导，并沿着膨胀气囊2的圆周方向流动，并且在旋转运动中流动 气囊2的垂直方向的结合，并且由于加热介质H在气囊的圆周方向上的圆形流动与气囊的垂直方向上的旋转流的协同作用，气囊2的温度差 充分减少。

公开(公告)号：US20150079211A1

公开(公告)日：2015-03-19

申请号：US14345212

申请日：2012-09-24

Applicant: The Yokohama Rubber Co. LTD.

Inventor： Hajime Satoh ,  Tsuyoshi Nomaguchi

IPC: B29D30/06

CPC classification number: B29D30/0654 ,  B29C2043/3649 ,  B29D2030/0655 ,  B29D2030/0659

Abstract: By providing projections 4 extending intermittently or continuously on the inner wall face of the cylindrical shaped bladder 2 at an inclination to the circumferential direction thereof, during vulcanization of a green tire G when the inside of the bladder 2 is filled by injecting with hot water as heating medium H and pressurizing medium, or steam as heating medium H and a gas as pressurizing medium, the heating medium H is guided along the projections 4 and flows in the circumferential direction of the expanded bladder 2, and flows in a rotating motion in the vertical direction of the bladder 2, and as a result of the synergistic action of the circular flow of the heating medium H in the circumferential direction of the bladder and the rotating flow in the vertical direction of the bladder, the temperature difference of the bladder 2 is sufficiently reduced.

Abstract translation: 通过在圆筒形状的气囊2的内壁面上以与其周向倾斜的方式间断地或连续地延伸的突起4，在通过以热水注射填充气囊2的内部时，在生胎G的硫化期间 加热介质H和加压介质，或作为加热介质H的蒸汽和作为加压介质的气体，加热介质H沿着突起4被引导，并沿着膨胀气囊2的圆周方向流动，并且在旋转运动中流动 气囊2的垂直方向的结合，并且由于加热介质H在气囊的圆周方向上的圆形流动与气囊的垂直方向上的旋转流的协同作用，气囊2的温度差 充分减少。

公开(公告)号：US20170291452A1

公开(公告)日：2017-10-12

申请号：US15507725

申请日：2015-08-20

Applicant: The Yokohama Rubber Co., LTD.

Inventor： Hajime Satoh ,  Kenta Yamamura

IPC: B60C5/08 ,  B60C99/00

CPC classification number: B60C5/08 ,  B29D30/0654 ,  B29D30/0662 ,  B29D2030/0659 ,  B60C99/00

Abstract: Provided is a pneumatic tire vulcanizing method which includes the steps of setting a green tire in a mold, inserting a bladder inside the green tire, and expanding the bladder to press the bladder to an outer side in the tire radial direction and perform vulcanization molding. The bladder is expanded with a rigidity reinforcement ring interposed between an inner circumferential surface of a region of the green tire corresponding to a tread portion and an outer circumferential surface of a region of the bladder corresponding to the tread portion.

公开(公告)号：US20160214340A1

公开(公告)日：2016-07-28

申请号：US14442398

申请日：2013-11-11

Applicant: The Yokohama Rubber Co., LTD.

Inventor： Hajime Satoh

IPC: B29D30/06

CPC classification number: B29D30/0654 ,  B29D2030/0655 ,  B29D2030/0659

Abstract: A tire vulcanization bladder where a thickness of a bladder main body portion is set to a constant thickness. At least one of multiple circular ribs, helical ribs in which multiple circumferential ribs are connected in a helix, multiple circular grooves, or helical grooves in which multiple circumferential grooves are connected in a helix is formed on the inner surface of the bladder at the portions corresponding to the tread portion, the shoulder portions, and the bead portions of the tire. When the bladder is inserted into a green tire that is set in the horizontal state within a mold and expanded, the expansion state of the bladder is regulated to press against the green tire in accordance with the inner surface shape of the tread portion the shoulder portions, and the bead portions.

Abstract translation: 将气囊主体部的厚度设定为恒定厚度的轮胎硫化气囊。 多个圆形肋条中的至少一个，其中多个圆周肋以螺旋连接的螺旋肋，多个圆形凹槽或螺旋槽，其中多个圆周凹槽以螺旋形连接形成在气囊的内表面上 对应于轮胎的胎面部，肩部和胎圈部。 当将囊状物插入模具中的水平状态的生胎并膨胀时，根据胎面部的内表面形状来调节囊的膨胀状态以压靠生胎，肩部 ，以及胎圈部。