METHOD OF MAKING A TIRE
    2.
    发明申请

    公开(公告)号:US20190070816A1

    公开(公告)日:2019-03-07

    申请号:US15693583

    申请日:2017-09-01

    IPC分类号: B29D30/32

    摘要: A method of building a tire carcass is disclosed. The method of building the tire carcass includes the steps of applying one or more tire building components onto a drum forming a cylindrically shaped tire carcass. A first and second bead is placed onto a respective bead pocket. Then the carcass is inflated under low pressure into engagement with a belt and tread package while the bead pockets are moved axially inward. The beads are continued to move axially inward to the axial width of the widest breaker position. Then the outer lateral ends of the cylindrically shaped tire carcass are turned up about a respective first and second bead.

    METHOD OF MAKING A TIRE
    4.
    发明申请

    公开(公告)号:US20190070815A1

    公开(公告)日:2019-03-07

    申请号:US15693581

    申请日:2017-09-01

    IPC分类号: B29D30/32

    摘要: A method of building a tire carcass is disclosed. The method of building the tire carcass includes the steps of applying one or more tire building components onto a drum forming a cylindrically shaped tire carcass. Placing a first and second bead onto the tire building components on the drum so that the tire carcass ends of the tire carcass extend laterally between the beads. Radially expanding a first and second bead lock mechanism into engagement with a respective first and second bead. Inflating the carcass under low pressure into engagement with a belt and tread package while moving the beads axially inward. Moving the beads axially inward to the axial width of the widest breaker position; Turning up the outer lateral ends of the cylindrically shaped tire carcass about a respective first and second bead.

    TIRE BUILDING DRUM
    9.
    发明申请
    TIRE BUILDING DRUM 审中-公开

    公开(公告)号:US20190070811A1

    公开(公告)日:2019-03-07

    申请号:US15693773

    申请日:2017-09-01

    IPC分类号: B29D30/24

    摘要: A second stage tire building drum is disclosed. The tire building drum has two hubs with an inner sleeve mounted to a central shaft of the tire building drum and configured for axial movement. At least one of the hubs is configured for free axial movement. Preferably, each hub further include a sliding sleeve mounted on the inner sleeve for unconstrained sliding in the axial direction relative to the inner sleeve. Preferably, each hub has a bead receiving mechanism mounted on the sliding sleeve and comprised of one or more segments that are radially expandable. Preferably, each segment has a pocket with a curved surface for receiving a bead. The method employs the steps of mounting a green cylindrically shaped tire carcass onto a tire building drum so that each bead are seated in a respective bead pocket segment, inflating the carcass under low pressure and expanding the carcass into engagement with tread and belt assembly while allowing the one or more of the hubs or one or more of the bead pocket segments to freely slide in the axial direction.