公开(公告)号：US20250010562A1

公开(公告)日：2025-01-09

申请号：US18699886

申请日：2022-10-31

Applicant: VMI Holland B.V.

Inventor： Willem Marinus VAN BEEK

IPC: B29D30/46 ,  B29D30/32 ,  B29D30/48

Abstract: Disclosed is a cutting device for cutting a continuous length of a strip, in particular an apex for tire building, wherein the cutting device has a conveyor for conveying the strip in a transport direction in a support plane and a knife for cutting through the strip along a cutting line transverse to the transport direction. The cutting device further includes a positioning device for pushing the strip in a positioning direction up to a longitudinal reference line at or near the cutting line.

公开(公告)号：US20240399692A1

公开(公告)日：2024-12-05

申请号：US18691087

申请日：2022-08-30

Applicant: BRIDGESTONE AMERICAS TIRE OPERATIONS, LLC

Inventor： Jason B. Smith

IPC: B29D30/32

Abstract: The present disclosure relates to a bead clamp ring for covering a bead clamp of a tire building machine during a tire building process, comprising an annular body formed of a flexible material that includes a central body portion, a proximal end body portion, and a distal end body portion. The proximal end body portion includes a securing to secure the bead clamp ring to the drum. The distal end body portion includes a bead lug to engage the bead clamp. The bead lug includes an annular recess, which includes a proximal recess portion communicated with the open recess end and an enlarged distal recess portion defining the closed recess end. The enlarged distal recess portion extends radially below the proximal recess portion and has a greater radial depth than the proximal recess portion. The enlarged distal recess portion is located distally of a mid-point of the bead lug length.

公开(公告)号：US12076953B2

公开(公告)日：2024-09-03

申请号：US18152366

申请日：2023-01-10

Applicant: Bridgestone Americas Tire Operations, LLC

Inventor： Nikolas R. Tomassoni ,  Phillip T. Brasher, Jr.

IPC: B29D30/32

CPC classification number: B29D30/32 ,  B29D2030/3264 ,  B29D2030/3278

Abstract: A tire turn-up apparatus for selectively engaging a cylindrical tire building drum may include a base and a first plurality of finger assemblies. The tire building drum may be a selected drum from a group of drums of different drum diameters. Each finger assembly may have a backstop connected to the base and a finger pivotally connected to the backstop. Each finger may be moveable between a radially retracted and extended position to turn-up the tire carcass. Each finger may be radially adjustable on its respective backstop to align with different drum diameters.

公开(公告)号：US11712861B2

公开(公告)日：2023-08-01

申请号：US16299710

申请日：2019-03-12

Applicant: PIRELLI TYRE S.P.A.

Inventor： Maurizio Marchini ,  Stefano Balia ,  Stefano Boracco

IPC: B29D30/48 ,  B29D30/00 ,  B29D30/08 ,  B29D30/32

CPC classification number: B29D30/00 ,  B29D30/005 ,  B29D30/0016 ,  B29D30/08 ,  B29D30/32 ,  B29D2030/0022 ,  B29D2030/0038 ,  B29D2030/0044 ,  B29D2030/0066 ,  B29D2030/3207 ,  B29D2030/487

Abstract: A method for verifying the correct formation of the beads in a process and a plant for building tyres for vehicle wheels, includes: loading a plurality of annular anchoring structures in a storage, disposing them in two groups separated by an opening; positioning a building drum provided with a carcass sleeve in a tyre bead-forming machine; picking up two of the annular anchoring structures from the storage and loading them on the tyre bead-forming machine. In a work area of the tyre bead-forming machine, on each of two axially opposite zones of the carcass sleeve, a respective annular anchoring structure is fit and each of the abovementioned zones is turned up around the respective annular anchoring structure to form the beads. The aforesaid opening allows an operator to conduct a visual inspection of the work area and/or access the work area during the entire work cycle of the machine.

公开(公告)号：US11518128B2

公开(公告)日：2022-12-06

申请号：US17275600

申请日：2019-07-31

Applicant: VMI HOLLAND B.V.

Inventor： Martin De Graaf ,  Dave Papot ,  Tom Regterschot

IPC: B29D30/26 ,  B29D30/32

Abstract: Disclosed is a tire building drum with a first bladder or sleeve, wherein the tire building drum has a first release member and a first actuator for generating a relative movement between the first release member and the drum body to move the first release member in a first release direction with respect to the drum body from a first fixation position in which the first release member fixates the first circumferential edge of the first bladder or sleeve to the drum body into a first release position in which the first release member releases the first circumferential edge from the drum body. Also disclosed is a method for operating the aforementioned tire building drum.

公开(公告)号：US11370187B2

公开(公告)日：2022-06-28

申请号：US17219708

申请日：2021-03-31

Applicant: Pirelli TYRE S.P.A.

Inventor： Erika Vaniglia ,  Fabio Regoli ,  Stefano Boracco ,  Davide Conti

IPC: B32B41/00 ,  B29D30/00 ,  G06T7/62 ,  B29D30/32 ,  G06T7/00 ,  B29D30/06

Abstract: A station for checking the formation of beads of tyres, including: a forming drum for arranging a carcass sleeve with formed beads with the carcass sleeve in rotation, an image acquisition system for acquiring at least an image of a circumferential portion of external surface including the respective edges of the end flaps turned up; a processing unit for processing the image in order to determine a circumferential trend of the axial distance of each edge from an axial reference plane and for detecting possible defects of the beads as a function of such trend.

公开(公告)号：US11312095B2

公开(公告)日：2022-04-26

申请号：US16405076

申请日：2019-05-07

Applicant: Pirelli Tyre S.p.A.

Inventor： Maurizio Marchini ,  Gianni Mancini ,  Gaetano Lo Presti

IPC: B29D30/32 ,  B29D30/24

Abstract: A process for manufacturing tyres for vehicle wheels, comprising the step of building on a forming support a carcass structure comprising at least one carcass ply and, at least one end edge of the carcass ply, at least one annular anchoring structure comprising at least one substantially circumferential annular insert and at least one filling insert associated to said at least one substantially circumferential annular insert. The step of building the carcass structure comprises the steps of positioning the annular anchoring structure on the carcass ply by moving the annular substantially circumferential insert into contact with an end edge of the carcass ply by means of a special positioning member, pulling down the filling insert on the end edge of the carcass ply and turning up a free end portion of the end edge of the carcass ply so as to form a turned up end portion of the carcass ply including said annular anchoring structure. The pulling down of the filling insert on the end edge of the carcass ply is carried out by a special pulling down member while the substantially circumferential annular insert is retained into a contact position with the end edge of the carcass ply by said positioning member.

公开(公告)号：US20210138749A1

公开(公告)日：2021-05-13

申请号：US16623583

申请日：2018-04-25

Applicant: BRIDGESTONE CORPORATION

Inventor： Satoshi IYANAGI

IPC: B29D30/32 ,  B29D30/26

Abstract: A tire forming apparatus including: a drum spindle body; a plurality of arms arranged in annular shape on an outer circumferential side of the drum spindle body; and pushing means configured to push the arms in a direction approaching an unvulcanized tire member, along an extending direction of the drum spindle body, wherein each arm includes: a slidable contact portion provided on one end side of the arm and configured to slidably contact the pushing means; a press portion provided on the other end side of the arm and configured to contact the unvulcanized tire member and press the unvulcanized tire member; and a connecting portion provided between the slidable contact portion and the press portion in the arm extending direction and connected to the drum spindle body, on the drum spindle body side with respect to a line segment connecting the slidable contact portion and the press portion.

公开(公告)号：US20210114323A1

公开(公告)日：2021-04-22

申请号：US17047368

申请日：2019-03-15

Applicant: VMI HOLLAND B.V.

Inventor： Evert Hendrik ZWEERS

IPC: B29D30/32

Abstract: Disclosed is a tire building drum with a turn-up device and a turn-up method, wherein the tire building drum is rotatable about a central axis and includes a first drum half, a second drum half and a center section that is located in the axial direction between the first drum half and the second drum half, wherein the turn-up device includes a first turn-up bladder extending in a circumferential direction around the first drum half, wherein the turn-up device further includes a plurality of first pressing arms pivotable with respect to the first drum half between a rest position and a pressing position, wherein the plurality of first pressing arms in the rest position is arranged to lie at least partially between the uninflated first turn-up bladder and the first drum half in the radial direction.

公开(公告)号：US10967593B2

公开(公告)日：2021-04-06

申请号：US14769613

申请日：2014-02-07

Applicant: Harburg-Freudenberger Maschinenbau GmbH

Inventor： Thomas Lange ,  Achim Behrens

IPC: B29D30/24 ,  B29D30/32

Abstract: A method and a device for the production of a green tire, in which at least two materials in strip form are positioned on a tire building drum. At least two cores are set in place. The tire building drum is equipped both with a core clamping device and with a core fixing device. The tire building drum is composed of a central part and of two drum halves arranged adjacent to the central part on both sides. The drum halves are arranged such that they can be positioned in an axial direction. The central part is equipped with a variable diameter in a radial direction. A radial enlargement of the diameter of the central part is performed before the cores are set in place.