Continental Aktiengesellschaft

Continental Akiengesellschaft

Contiental Aktiengesellschaft

Michael Glinz

Horst Sergel

Hans-Bernd Hellweg

G&uuml;nter Homt

Andreas Dieckmann

Udo Frerichs

Heinrich Huinink

Roland Jenke

Harald Kranz

Fritz Rothemeyer

Joachim Busche

Silvia Kuhlmann

Hans Bernd Hellweg

Harry Kunz

Gunter Homt

An emergency support member is provided for a vehicle wheel and tire assembly having a pneumatic tire that is mounted on a wheel rim. The support member is embodied as a dished annular member within the tire, and has an emergency support surface for supporting the tire in the event of damage thereto. The annular member extends axially from the center of the rim and symmetrically over a portion of the width thereof. The annular member has a curved contour, with the two axially outer wall regions being supported upon the wheel rim via annular support elements. The dished annular member is embodied as a split ring that is not closed over its periphery, and is provided with a closure device for closing off the slit. The closure device includes two flanges that extend essentially radially inwardly relative to the rim. The closure device also includes at least one locking clamp for connecting the flanges.

Emergency support member

Process and apparatus for improving a concentricity of a pneumatic vehicle tire having a bead. The process includes subjecting at least a portion of the bead, after vulcanization, to a plastic deformation post-treatment. The post-treatment improves the concentricity of the tire. The apparatus includes a drum having a surface which engages a radially inner bead seat surface of the tire. The drum includes at least one of an internal heating mechanism and an internal cooling mechanism. The drum is adapted to plastically deform at least a portion of the bead of the tire so as to affect at least one of a first, a second, and a third harmonic. The plastic deformation improves the concentricity of the tire.

Method and apparatus for improving concentricity in automobile tires

Vehicle wheel that includes a pneumatic tire mounted on a wheel rim. The pneumatic tire includes a tire tread, two side-walls, a carcass, reinforcing elements, and two tire beads with bead cores. The vehicle wheel also includes an emergency support body, mounted on the wheel rim and positioned inside the pneumatic tire. The emergency support body includes an emergency rolling surface to support the tire in case of a failure of the pneumatic tire. The emergency rolling surface includes a radially exterior surface of a ring torus with a bowl-shaped cross section, and the ring torus includes axially exterior sections having cross-sectional contours with first curvatures open to the wheel rim and an intermediate section positioned between the axially exterior sections having a contour with a second curvature open to a crest point of the pneumatic tire. The first and second curvatures include at least one radius of curvature and at least one supporting element is positioned to support the ring torus on the wheel rim.

Vehicle wheel with a pneumatic tire

Vehicle wheel includes a rim and a pneumatic tire which includes a tread, two side walls, a carcass, reinforcing elements, and two tire beads with bead cores. An emergency running support body is supported on the rim which is arranged to support one of the pneumatic tire and an interior of the tread in an event of an emergency condition. The emergency running support body includes a shell-shaped ring body located inside the pneumatic tire and an emergency running surface on its exterior. At least one container, which contains a lubricant, is positioned inside a first ring chamber. This Abstract is not intended to define the invention disclosed in the specification , nor intended to limit the scope of the invention in any way.

Vehicle wheel with an emergency running support body and at least one lubricant container

Vehicle wheel including a wheel rim and pneumatic tire having a tread, two side walls and two beads, is mounted to the wheel rim. An emergency running support body is arranged within the pneumatic tire. The emergency running support body comprises a ring-shaped body. The ring-shaped body comprises a first axial outer wall region, a second axial outer wall region, and an emergency running support surface adapted to support the pneumatic tire in an emergency running condition. A first ring-shaped support element is arranged to support the first axial outer wall region. A second ring-shaped support element is arranged to support the second axial outer wall region. At least one of the first and the second ring-shaped support elements comprises a multi-layered structure.

Vehicle wheel with an emergency running support body

A vehicle wheel including a wheel rim, a pneumatic tire comprising a tread and first and second side walls, wherein each of the first and second side walls comprise a bead having a bead core, an emergency running support body including an emergency running surface and first and second axial outer wall sections, the emergency running support body further comprising the shell-shaped ring body adapted to be disposed within the tire and to support the tire in case of damage, a first ring-shaped supporting element, and a second ring-shaped supporting element, whereby the first axial outer wall section is supported on the wheel rim via the first ring-shaped supporting element and the second axial outer wall section is supported on the wheel rim via the second ring-shaped supporting element, wherein the shell-shaped ring body is one of removably connected and removably attached to one of the first ring-shaped support element and the second ring-shaped support element, and wherein one of the first ring-shaped supporting element and the second ring-shaped supporting elements is one of elastically deformable and swivelable in an axial direction.

Vehicle wheel with emergency running support body

The invention relates to a process for manufacturing an unfinished rubber piece for a vehicle tire that includes providing a plurality of tire components composed of unvulcanized rubber mixtures, and treating a surface of at least one of the plurality of tire components with a plasma and/or a flame to increase the adhesiveness of the surface. The unvulcanized rubber mixtures may include partially embedded reinforcing members.

Process for manufacturing an unfinished piece for vehicle tires

A method for manufacturing a pneumatic vehicle tire includes the step of folding the carcass ply in the overlap zone of the leading and trailing ends into at least one fold to form an overlength of the reinforcement elements in the overlap zone for preventing the constriction in the overlap zone within the vulcanized, inflated tire. Subsequently, in both methods, the green tire is completed on the building drum and the green tire is then vulcanized to produce the finished tire.

Method and device for manufacturing a pneumatic vehicle tire

A method for cutting to length a strip-shaped profiled member of unvulcanized rubber material by a cutting edge includes the step of providing a speed between the cutting edge and the profiled member to be cut of at least 2.5 m/s during the cutting action. The device for carrying out the method includes a carriage and a tool with a cutting edge fastened to the carriage. The carriage has an acceleration path, defined between a rest position of the carriage and a side of the profiled member facing the carriage, of between 0.2 and 1 m. The carriage has a deceleration path, defined between an oppositely arranged side of the profiled member and an end position of the carriage, of at least 0.1 m.

Method for cutting to length an unvulcanized rubber strip member by a

A method for manufacturing a pneumatic vehicle tire includes the step of providing a cylindrical building drum with a bar or depression having a longitudinal extension in the direction parallel to the orientation of reinforcement elements of a carcass ply to be applied to the building drum. A lining is positioned on the cylindrical building drum. At least one carcass ply, comprising reinforcement elements and having a leading end and a trailing end, is placed onto the lining such that the leading and trailing ends overlap in the overlap zone at the bar or the depression, thereby forming an overlength of the reinforcement elements in the overlap zone for preventing a constriction in the overlap zone within the vulcanized, inflated tire. In the alternative, the carcass ply is folded in the overlap zone into a least one fold to form an overlength of the reinforcement elements in the overlap zone for preventing the constriction in the overlap zone within the vulcanized, inflated tire. In this embodiment, the bar or depression at the drum is not required. Subsequently, in both methods, the green tire is completed on the building drum and the green tire is then vulcanized to produce the finished tire.

A pneumatic vehicle tire with a wound bandage and a method for its manufacture are provided. In order to avoid discontinuities of the wound bandage within the area of the edges of the reinforcement belt, it is suggested to provide the strips of material for manufacturing the bandage with a narrow width in the area of the edges of the reinforcement belt and with a wide width at the center portion of the reinforcement belt. This is achieved by providing at least two strips of varying width and winding them onto the reinforcement belt such that the narrow strip of material is arranged at the edges of the reinforcement belt.

Pneumatic vehicle tire having wound layer including wide and narrow

Method of manufacturing tire including winding wide and narrow cord

A method and an apparatus for producing tread/reinforcement belt units for pneumatic vehicle tires in which a rotatable winding drum. a belt feeding device for a first and a second reinforcement belt layer, an overlay feeding device, a tread feeding device and a transfer device are provided. On a winding drum having double width and being axially movable, two tread/reinforcement belt units are simultaneously produced whereby in the first method steps the individual reinforcement belt layers are produced, subsequently two wound overlays are produced, and then two treads are applied one after another or simultaneously.

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Neustadt, Germany

Michael Glinz