公开(公告)号：US4012479A

公开(公告)日：1977-03-15

申请号：US628436

申请日：1975-11-03

Applicant: James Earl Britton ,  Joseph L. Grant ,  John Alan Welch

Inventor： James Earl Britton ,  Joseph L. Grant ,  John Alan Welch

IPC: B29C33/02 ,  B29C35/00 ,  B29D30/00 ,  B29D30/06 ,  B29H5/02 ,  B29H17/14

CPC classification number: B29D30/00 ,  B29D30/0601

Abstract: Discloses method of forming a belted radial tire from a cylindrical radial green tire band having biased corded belts which are adapted to pantograph and expand circumferentially as the tire band is shaped to be molded into a finished tire without "S-ing" of the radial cords of the carcass plies under the belts of the finished tire as may be caused by the pantograph action of the belts while the tire band is being expanded into finished shape. Involves lowering a belted radial green tire band of generally cylindrical shape to seat into a conventional tire molding press over the inflatable curing bladder, then applying inflation pressure into the curing bladder to a first pressure level while partially closing the press. The inflation pressure is continued to a second pressure level while continuing to close the press. The belts pantograph and circumferentially expand substantially completely through application of the second pressure until the tire band has reached a generally circular U-shape. The second pressure level is held while the press is in partially open position for a sufficient time interval to retain the belts in expanded position while the carcass cords under the belts stretch to be disposed at substantially 0.degree. with respect to the tire axis. The pressure is then lowered from the second pressure level to about the same as the first pressure level while the press remains partially open to permit ready closure of the press about the tire band. Then the press is fully closed and the higher molding pressure and temperature is applied to cure the tire band into a finished tire as usual.

Abstract translation: 公开了一种带有带偏心的带状带的带状子午线轮胎的形成方法，该轮胎带轮具有带有偏心的带状带，当轮胎带被成型为成型轮胎而不会“径向” 的胎体帘布层在成品轮胎的带子之下，这可能是由于带状物被拉伸成最终形状的带的受电弓动作引起的。 涉及降低大致圆柱形形状的带状径向生胎轮胎带，将其放置在可膨胀的固化囊上的常规轮胎模压机中，然后将部分关闭压机的充气压力施加到固化囊中至第一压力水平。 在继续关闭印刷机的同时，充气压力继续达到第二压力水平。 带通过施加第二压力基本上完全地伸缩并且周向膨胀，直到轮胎带已经达到大致圆形的U形。 当压力机处于部分打开位置时，保持第二压力水平足够的时间间隔，以将带子保持在展开位置，同时带子下方的胎体帘线延伸相对于轮胎轴线大致为零。 然后将压力从第二压力水平降低至与第一压力水平相同，同时压力机保持部分打开以允许压力机绕轮胎带准备好关闭。 然后，压机完全关闭，并且施加较高的成型压力和温度，以照常将轮胎带固化成成品轮胎。

公开(公告)号：US4008743A

公开(公告)日：1977-02-22

申请号：US608134

申请日：1975-08-27

Applicant: John Alan Welch

Inventor： John Alan Welch

IPC: B60C17/01 ,  B60C17/02 ,  B60C17/06 ,  B60C5/08 ,  B60C17/04

CPC classification number: B60C17/02 ,  B60C17/06 ,  B60C17/065 ,  B60C2017/068 ,  Y10T152/10387

Abstract: A pneumatic tire with an internal toroidal safety structure that expands and provides emergency support between the tire tread and the wheel rim if the tire loses inflation pressure. The safety structure has an outer circumferential belt comprising one or more superposed layers of cord reinforced strips, the belt being secured to the safety structure in a relatively narrow central circumferential zone so that radial expansion of the toroidal safety structure is readily accommodated should the tire lose inflation pressure. The belt bears between the inner surface of the tread portion of the tire and the safety structure in the event of tire deflation or underinflation and thus guards against puncture. The safety structure may be an internal inflatable tube or a flexible resilient foam member, for example.

Abstract translation: 一种具有内环形安全结构的充气轮胎，其在轮胎失去充气压力时，在轮胎胎面和轮辋之间扩张并提供紧急支撑。 安全结构具有包括一个或多个帘线加强条的重叠层的外圆周带，该带在相对较窄的中心圆周区域中固定到安全结构，使得当轮胎损失时容易容纳环形安全结构的径向膨胀 通货膨胀压力。 在轮胎放气或欠充气的情况下，皮带承载在轮胎的胎面部分的内表面和安全结构之间，因此防止穿刺。 例如，安全结构可以是内部可充气管或柔性弹性泡沫构件。