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    TIRE BUILDING DRUM AND METHOD OF BUILDING A TIRE
    1.
    发明公开
    TIRE BUILDING DRUM AND METHOD OF BUILDING A TIRE 审中-公开

    公开(公告)号：EP3450154A1

    公开(公告)日：2019-03-06

    申请号：EP18191837.6

    申请日：2018-08-30

    申请人： The Goodyear Tire & Rubber Company

    发明人： STOILA, George Michael ,  HOGAN, Michael James ,  KMIECIK, Frank Anthony ,  YAO, Minwu ,  MONTGOMERY, Mark John ,  LUNDELL, Dennis Alan ,  CONGER, Kenneth Dean ,  MORALES, Pablo Rafael ,  ONDO, Andrew Robert ,  VARGO, Richard David

    IPC分类号： B29D30/24 ,  B29D30/32

    摘要： A second stage tire building drum is disclosed. The drum (100) comprises a first and second hub (120, 120'). Each hub is mounted on a central shaft (110) of the second stage tire building drum (100) and each hub (120, 120') is mounted on an inner sleeve (139). The inner sleeve (139) has an inner surface that is threadedly engaged with an internal screw (114) positioned within the inner sleeve (139) for axial translation; or the inner sleeve (139) is freely axially slidable on the central shaft (110). Each hub (120, 120') has a bead receiving mechanism, wherein said bead receiving mechanism includes one or more bead segments (210), and wherein each bead segment has a pocket (212). Also, a method of forming a tire having a first and second bead on a tire building drum (100) is disclosed. The method comprising the steps of: applying a green tire carcass (610) onto the tire building drum (100), said tire building drum (100) having a left and right hub (120, 120'), said first or left hub (120) having a first bead pocket (212), and said second or right hub (120') having a second bead pocket (212); placing the first and second bead onto a first and second respective bead pocket (212) of the tire building drum (100); and inflating the carcass (610) into engagement with a belt and tread package (650) while (i) moving at least one of the left and right hubs (120, 120') in the axial direction at a controlled velocity towards the other respective hub or (ii) allowing at least one of the first and second bead pockets (212) to freely move in the axial direction.

    TIRE BUILDING DRUM AND METHOD OF BUILDING A TIRE
    2.
    发明公开
    TIRE BUILDING DRUM AND METHOD OF BUILDING A TIRE 审中-公开

    公开(公告)号：EP3450153A1

    公开(公告)日：2019-03-06

    申请号：EP18191823.6

    申请日：2018-08-30

    申请人： The Goodyear Tire & Rubber Company

    发明人： STOILA, George Michael ,  HOGAN, Michael James ,  KMIECIK, Frank Anthony ,  YAO, Minwu ,  MONTGOMERY, Mark John ,  JOHNSON, Kristian Daniel ,  ANDERSON, John Edward ,  VARGO, Richard David ,  MORALES, Pablo Rafael ,  ONDO, Andrew Robert

    IPC分类号： B29D30/24 ,  B29D30/32

    摘要： A second stage tire building drum is disclosed. The drum (100) comprises a first and second hub (120, 120'), wherein each hub is mounted on a central shaft (110) of the second stage tire building drum (100); wherein at least one of said hubs (120, 120') is configured for unconstrained axial movement on the central shaft (110); and wherein each hub (120, 120') has a bead receiving mechanism mounted on each hub. Also, a method of forming a tire on a tire building drum (100) from a green tire carcass (600) is disclosed. The method comprises the steps of (i) applying a green tire carcass (600) onto the tire building drum (100) by placing a first and second bead onto a first and second respective bead receiving member of the tire building drum, wherein no bead locking force is utilized or (ii) applying a green tire carcass (600) onto the tire building drum (100) by placing a first and second bead onto a first and second respective bead pocket (212) of the tire building drum (100), wherein preferably a relatively low bead locking force is utilized and wherein at least one of the first and second respective bead pockets (212) are configured for unconstrained sliding in the axial direction. The method further comprises the step of inflating the carcass (600) into engagement with a belt and tread package (650) while at least one of the beads is free to move axially inward.