公开(公告)号：US3880688A

公开(公告)日：1975-04-29

申请号：US23133072

申请日：1972-03-02

申请人： PIRELLI

发明人： CALORI GIOVANNI ,  BENATTI VINCENZO

IPC分类号： B29D30/70 ,  B60C9/00 ,  B65H81/04

CPC分类号： B29D30/3028 ,  B29D30/70 ,  B29D2030/385 ,  B29D2030/386 ,  Y10T152/10765 ,  Y10T152/10783 ,  Y10T156/1052 ,  Y10T156/12

摘要： A continuous process is disclosed for the formation of ringshaped pieces of reinforced rubber, useful as breakers in pneumatic tires. A rubber band having reinforcing elements or a plurality of said bands is wound around a cylindrical support in a cylindrical spiral shape. Certain portions of the cylindrical support are moved from the formation area to an exit area at such a speed synchronized with the reels containing the rubber band to result in a tubular body of uniform thickness and indefinite width. The tubular body is then cut into ring-shaped pieces and removed while the moving portions of the cylindrical support are recycled to the formation area. The apparatus is also disclosed. The moveable portions can be cylindrical, flexible metallic frames; cylindrical strips connected by chains or thin steel bands sustained by supports which are solid with the fixed part of the cylindrical support. A preferred embodiment has part of the moveable portions recycled within a defined cylindrical sector but outside the shaft.

摘要翻译： 公开了用于形成用作充气轮胎中的断路器的增强橡胶环形件的连续方法。 具有加强元件或多个所述带的橡胶带以圆柱形螺旋形状缠绕在圆柱形支撑件上。 圆柱形支撑件的某些部分以与包含橡胶带的卷轴同步的速度从形成区域移动到出口区域，以产生均匀厚度和不确定宽度的管状体。 然后将管状体切割成环形件并移除，同时圆柱形支撑件的移动部分被再循环到形成区域。 还公开了该装置。 可移动部分可以是圆柱形，柔性金属框架; 由链条或细钢带连接的圆柱形条带由支撑件支撑，支撑件与圆柱形支撑件的固定部分是固体的。 一个优选实施例中，可移动部分的一部分在限定的圆柱形扇形部分中再循环，但在轴外部。

公开(公告)号：US3921689A

公开(公告)日：1975-11-25

申请号：US38236373

申请日：1973-07-25

申请人： PIRELLI

发明人： CACCIA ANGELO ,  BENATTI VINCENZO

IPC分类号： B29C73/16 ,  B29C73/18 ,  B29C73/20 ,  B29D30/04 ,  B60C5/14 ,  B60C9/14 ,  B60C13/00 ,  B60C17/00 ,  B60C19/00 ,  B60C19/12

CPC分类号： B60C19/122 ,  B60C5/14 ,  B60C9/14 ,  B60C19/002 ,  Y10T152/10396 ,  Y10T152/10666

摘要： A pneumatic tire with both a sealing action and an anti-burst action is disclosed. The tire has an inflatable structure made of an elastic foam material having prevailingly closed cells in the form of an annular band below the tread band of the casing with a width at least equal to the width of the tread band and means preventing the flow of tire air out of the area between the outer surface of the annular band and the casing inner surface corresponding thereto. The tire can be radial if desired.

摘要翻译： 公开了一种具有密封作用和抗爆击作用的充气轮胎。 轮胎具有由弹性泡沫材料制成的可膨胀结构，该弹性泡沫材料具有在壳体的胎面带下方具有环形带形状的通孔，其宽度至少等于胎面带的宽度，并且防止轮胎流动的装置 空气流出环形带的外表面和与其对应的壳体内表面之间的区域。 如果需要，轮胎可以是径向的。