公开(公告)号：US20090151873A1

公开(公告)日：2009-06-18

申请号：US12255729

申请日：2008-10-22

Applicant: Ricardo de Mello Pinto ,  Cesar Nazare de Oliveira ,  Jose Luiz de Souza ,  Luis Carlos Gentil

Inventor： Ricardo de Mello Pinto ,  Cesar Nazare de Oliveira ,  Jose Luiz de Souza ,  Luis Carlos Gentil

IPC: B29D30/24

CPC classification number: B29D30/246 ,  B29D30/26 ,  B29D2030/2635 ,  B29D2030/2692

Abstract: The invention provides in a first aspect a method of converting a tire building drum into a sleeveless tire building drum. The method comprising the steps of providing a tire building drum having a center sleeve, removing the center sleeve, providing a plurality of cover plates and a plurality of segments located underneath the coverplates, the segments connected to radially oriented pistons for radial movement of the center section; Providing a plurality of holes on said coverplates, connected the holes to a fluid manifold, and connecting the manifold to a vacuum source. The invention provides in a second aspect, a sleeveless tire building drum which includes a rotatable drum comprising a left and right section and a center section. The center section is radially expandable, and the left and right sections are axially movable. The center section has a plurality of coverplates mounted on the circumference of the center section, the coverplates having an outer surface having a plurality of holes, and a inner surface having a manifold connected to the plurality of holes, said manifold connected to a vacuum source, wherein the center section of the tire building drum does not have an outer sleeve.

Abstract translation: 本发明在第一方面提供了一种将轮胎成型鼓转换成无袖轮胎成型鼓的方法。 该方法包括以下步骤：提供具有中心套筒的轮胎成型鼓，去除中心套筒，提供多个盖板和位于盖板下方的多个段，所述段连接到径向定向的活塞，用于径向移动中心 部分; 在所述盖板上设置多个孔，将所述孔连接到流体歧管，并将所述歧管连接到真空源。 本发明在第二方面提供了一种无袖轮胎成型鼓，其包括可旋转滚筒，该滚筒包括左右部分和中心部分。 中心部分是可径向扩张的，左右部分可轴向移动。 中心部分具有安装在中心部分的圆周上的多个盖板，该盖板具有一个具有多个孔的外表面和一个内表面，该内表面具有连接到多个孔的歧管，所述歧管连接到真空源 其中轮胎成型鼓的中心部分不具有外套筒。