公开(公告)号：US11020920B2

公开(公告)日：2021-06-01

申请号：US16622166

申请日：2018-06-13

Applicant: VMI HOLLAND B.V.

Inventor： Antonie Slots ,  Evert Doppenberg

IPC: B29D30/20

Abstract: Disclosed is a tire building system including a first drum, a second drum and first stations, a first support, a first carrier that carries the first drum with respect to the first support, a second support and a second carrier that carries the second drum with respect to the second support, wherein the first carrier is movable along the first support in a first positioning plane, wherein the second carrier is movable along the second support in the first positioning plane, wherein the first support is arranged for supporting the first carrier from below the first positioning plane and wherein the second support is arranged for suspending the second carrier from above the first positioning plane. The disclosure further relates to a method for positioning the first drum and the second drum with respect to the first stations with the use of the aforementioned system.

公开(公告)号：US11110675B2

公开(公告)日：2021-09-07

申请号：US15745668

申请日：2016-07-11

Applicant: VMI Holland B.V.

Inventor： Evert Doppenberg ,  Gerrit Rodijk ,  Martin De Graaf

IPC: B29D30/32

Abstract: Provided is a tire building drum and a method for shaping tire components on the tire building drum, wherein the tire building drum has an annular sleeve that extends over turn-up arms in the longitudinal direction of the turn-up arms. The sleeve is elastic in the circumferential direction and fits elastically around the turn-up arms. The sleeve is provided with inelastic reinforcement elements extending in at least a part of the sleeve in a reinforcement direction transverse to the circumferential direction of the tire building drum, and has a fixed end that is retained in the axial direction and a movable end that is movable over the turn-up arms in their respective longitudinal directions.

公开(公告)号：US11752718B2

公开(公告)日：2023-09-12

申请号：US17781847

申请日：2020-11-09

Applicant: VMI HOLLAND B.V.

Inventor： Antonie Slots ,  Evert Doppenberg

IPC: B29D30/32 ,  B29D30/48 ,  B29D30/00

CPC classification number: B29D30/48 ,  B29D2030/0044 ,  B29D2030/3207 ,  B29D2030/487

Abstract: A bead retaining member includes a body having a concave first concave edge and one or more retaining elements which are distributed over the body along said first concave edge for retaining a first bead of a first size along a first retaining curve having a first retaining radius and for retaining a second bead of a second size along a second retaining curve having a second retaining radius larger than the first retaining radius. The first retaining curve intersects with the second retaining curve at a first intersection point and a second intersection point. The first concave edge is non-circular and is located radially outside of the second retaining curve in a center region of the first concave edge between the first intersection point and the second intersection point and radially outside of the first retaining curve in a first lateral region and a second lateral region.

公开(公告)号：US10434737B2

公开(公告)日：2019-10-08

申请号：US15320699

申请日：2015-06-03

Applicant: VMI HOLLAND B.V.

Inventor： Evert Doppenberg

IPC: B29D30/26 ,  B29D30/24

Abstract: A tire building drum has a drum shaft and a circumferential surface for receiving a tire component, wherein the circumferential surface is defined by segments which are radially movable between a contracted position in which the circumferential surface has a first radius and an expanded position in which the circumferential surface has a second, greater radius. The tire building drum includes cover plates, wherein each segment is provided with a first section having a first support surface for supporting the tire component and a second section with a second support surface for supporting the cover plate. Each second section is movable relative to its respective first section from a recessed position in which the second support surface is recessed with respect to first radius and an extended position in which the second support surface is raised towards the second radius.