Continental Gummi-werke Aktiengesellschaft

Continental Aktiengesellschaft

Uniroyal Englebert Reifen Gmbh

Heinz-Dieter Rach

Udo Frerichs

Hans Seitz

Henner Pieper

Hans-Ulrich Klose

Carsten Boltze

Siegmund Spendel

Dionysius J Poque

Heinrich Huinink

Dieter Kuhn

Gerhard Mauk

Alfred Duchow

Werner Flebbe

Dietmar Haack

A method and apparatus for vulcanizing pneumatic vehicle tires having heads that in the mounted state are disposed on the radially inner periphery of a rim. In order for such tires to achieve a satisfactorily contoured vulcanization, and in order at the same time to produce sealing surfaces with great precision, the tire is vulcanized with its beads in their operating position. During the vulcanization, the radially outwardly disposed surfaces of the tire beads are shaped with the aid of rigid, one-piece, shaped molding rings.

Method and apparatus for vulcanizing pneumatic vehicle tires

An apparatus for vulcanizing pneumatic vehicle tires where the tire beads, in the mounted state, are disposed on the radially inner periphery of a rim next to the essentially radially inwardly extending rim flanges. In order to obtain tires having a long service life and tire beads with a good sealing quality, it is proposed that the tire be vulcanized in essentially the proper contour for operation. Two, respectively radially segmented, bead-forming rings that have a variable diameter and can be displaced axially are provided. For the purpose of vulcanizing the sealing surfaces disposed in the interior of the tire so that these surfaces will rest on the rim in an airtight manner, the bead-forming rings are introduced, in a radially retracted state, into the interior of the tire blank, whereby at least one of the tire beads is ovally deformed. The segments of the molding rings are subsequently extended to an annular radial diameter whereby the molding surface portions of the molding rings can be moved axially outwardly over the tire beads without deforming the latter.

Apparatus for vulcanizing pneumatic vehicle tires

A vehicle wheel for pneumatic tires. The rim of the wheel has radially inwardly extending rim flanges, and adjacent thereto, along the inner periphery, has seats inclined in cross section for a belted tire, and adjacent thereto, has recessed portions. The recessed portions adjoining the seats extend at least partially inclined in cross section. The angle of inclination of the recessed portions with respect to the axial direction is equal to or greater than the corresponding inclination angle of the seats. The recessed portions, in the axial direction, have a dimension which is equal to or greater than that of the axial segments of the seats.

Vehicle wheel

A bead core for a pneumatic vehicle tire that is designed to have its beads disposed on the radially inner periphery of a rim. The bead core is in the form of an endless ring that has an essentially round cross-sectional shape. To increase the bead-seating reliability, it is proposed that the inner core of the bead core be hollow or be formed by a lightweight ring that serves as a spacer element. At least one layer of load-carrying cords is disposed about the inner core. These load-carrying cords have a solid cross-sectional area or a hollow cross-sectional shape.

Bead core for a pneumatic vehicle tire including hollow cords

A filler ring, made of rubber or synthetic material, for a vehicle wheel and pneumatic tire assembly where the beads of the tire are mounted on the radially inner periphery of a wheel rim next to essentially radially inwardly extending rim flanges. The filler ring covers a space located axially inwardly of a rim flange. The filler ring includes at least two planes of circumferential hollow chambers, with the planes of hollow chambers being superimposed on one another in a radial direction, and with at least two hollow chambers, which are successively arranged in an axial direction, being provided in each of the planes of such hollow chambers.

Filler ring for a vehicle wheel and tire assembly

A method of producing a pneumatic vehicle tire, the beads of which can be mounted on the radially inner periphery of a rim, and are pivotably relative to the bead cores. A carcass along with the adjacent rubber layers, and the tire beads, with their pull and compression resistant cores, are combined on a drum to form an essentially cylindrical blank. What will later be the insides of the tire initially face radially outwardly, and the interfaces of the initially radially outwardly extending beads form an essentially right angle with the cylindrical surface of the blank. At least the bead regions of the tire blank are preliminarily vulcanized, whereupon the blank is turned in and has imparted thereto a toroidal shape. The blank is then provided with a tread strip, and is final-vulcanized.

Method of producing a pneuamtic vehicle tire

A vehicle wheel having a rigid rim on which can be mounted a pneumatic tire. The rim has rim flanges that essentially extend radially inwardly. The wheel also has a drop base that is centrally disposed relative to the rim, and is open radially outwardly. Disposed on the radially inner side of the rim, between the drop base and each rim flange, are respective recessed mounting portions for receiving the beads of a tire. To enlarge the supporting surfaces, an annular support member spans the drop base of the wheel, with the support member being in the form of a cylindrical ring that is exactly cylindrical or is at most slightly curved.

Vehicle wheel for pneumatic tire

A pneumatic tire vehicle wheel which is employable for emergency running or operation. The unitary or one-piece rim with slanted, inclined or cylindrical rim shoulder and rim flange is provided with an emergency running or operating support which is constructed radially elevated in a cap-like configuration. The tire beads are constructed turnable or rotatable around the bead core and are capable of being shifted or displaced in an eccentric manner upon the rim. The round or square bead core lies upon a radial height or level of at least 0.4.times. the rim flange height in the tire bead. A method for assembling or putting together of a pneumatic tire-vehicle wheel includes the steps of moving the rim and the pneumatic tire with axially outwardly turned or rotated tire beads relatively into each other until a first tire bead is located upon a first rim shoulder; then there is further moving of the rim and pneumatic tire relatively into each other; there is moving of the tire bead over the cap-like rim support until the tire bead is located upon the second rim shoulder; thereafter the further tire bead and the rim are moved relatively into each other until the tire bead is located upon the rim shoulder; then there is shifting or displacing of the tire beads with pumped-in compressed or pressurized air under the rising or building-up interior pressure out of the turned or rotated built-in position upon the rim eccentrically into the clamping position with the rim.

A method and apparatus for vulcanizing pneumatic vehicle tires where the tire beads, in the mounted state, are disposed on the radially inner periphery of a rim next to the essentially radially inwardly extending rim flanges. In order to obtain tires having a long service life and tire beads with a good sealing quality, it is proposed that the tire be vulcanized in essentially the proper contour for operation. Two, respectively radially segmented, bead-forming rings that have a variable diameter and can be displaced axially are provided. For the purpose of vulcanizing the sealing surfaces disposed in the interior of the tire so that these surfaces will rest on the rim in an airtight manner, the bead-forming rings are introduced, in a radially retracted state, into the interior of the tire blank, whereby at least one of the tire beads is ovally deformed. The segments of the molding rings are subsequenty extended to an annular radial diameter whereby the molding surface portions of the molding rings can be moved axially outwardly over the tire beads without deforming the latter. The molding rings are then moved axially outwardly over the tire beads and then retracted to their smallest diameter, and are locked into position, whereupon the tire blank is vulcanized in a mold.

Method for vulcanizing pneumatic vehicle tires

A vehicle wheel has a pneumatic tire mounted thereon. The wheel has a rigid rim having essentially radially inwardly extending rim flanges and, on the radially inner side of the rim ring, the rim has respective mounting spaces, each with a deep mounting bed. The pneumatic tire is provided with tire beads having a cross-sectional form which, on the one hand, permits the tire bead to extend into the mounting space and deep bed during mounting, in which, on the other hand, closes-off the mounting space and deep bed when the tire is in its operational state. In order to disconnect the tire seat from the rim support surfaces, it is proposed that the deep mounting bed extend directly to the rim flange, and that, in the operational state of the tire, on the one hand the tire bead be spaced from that portion of the rim ring that is adjacent to the rim flange, and on the other hand a portion of the tire bead butt axially inwardly against a portion of the rim.

A rim for a pneumatic vehicle tire, the beads of which are adapted to be mounted on the radially inner periphery of the rim. The rim has a rim ring that is provided radially inwardly with seating surfaces for the tire beads. On the lateral edges, the rim ring has essentially radially inwardly extending rim flanges. Furthermore, the rim ring is provided radially outwardly with support surfaces for emergency operation when a puncture, flat tire, etc. is encountered. In order to increase the ability to operate with a flat tire, the wall of the rim ring, in the vicinity of each of the rim flanges, is bent radially outwardly, and is then bent back axially inwardly at a radial spacing relative to the remainder of the rim ring, so that two annular supports are formed for supporting a flat tire.

Rim for a pneumatic vehicle tire

A vehicle wheel having a rigid rim on which can be mounted a pneumatic rubber tire. The tire beads are adapted to be disposed on the radially inner side of the rim ring. Deep mounting beds are located axially inwardly of the rim seating surfaces for the tire bead. In order to prevent the penetration of water and dirt into the deep mounting beads, the tire beads each have a cross-sectional shape which on the one hand during mounting allow the tire bead to enter the mounting space having the deep bed, and on the other hand in the operating position of the tire close off the mounting space having the deep bed region.

Wheel and tire assembly for a vehicle

A covering ring for a vehicle wheel. The bead seating surfaces of a tire are mounted on the radially inner periphery of the rim. In order to prevent dirt and/or water from entering the space between the tire bead and the rim well, the covering ring has a width which covers the space between the tire bead, that portion of the rim which extends axially outwardly from the rim well, and the rim well. Also provision is made that the radially inner surface of the covering ring, when viewed in the transverse direction, extends horizontally or is laterally inclined toward the outside. Also provision is made that the radially inner diameter of the covering ring at no point of the space, which is to be covered, be greater than the radially inner diameter of the mounted tire in the bead region.

Covering ring for a vehicle wheel

An apparatus for mounting pneumatic vehicle tires, the beads of which, in the mounted state, are disposed on the radially inner periphery of a wheel rim. The apparatus permits simple and rapid mounting of a tire. A mounting unit which, after the introduction of a portion of the tire bead in a recessed portion of the rim, fixes the bead portion. A drivable roller, which in operation engages in the bead region of the tire, has a circumferential speed which is greater than the rolling speed on the tire.

Apparatus for mounting pneumatic vehicle tires

A method and apparatus for demounting a pneumatic vehicle tire, the beads of which, in the mounted state, are disposed on the radially inner periphery of a wheel rim having a deep mounting bed and, laterally outwardly therefrom, rim flanges which extend essentially radially inwardly. First, a portion of a given tire bead is forced into the deep mounting bed, and subsequently the oppositely located portion of the same tire bead is lifted over the rim flange.

Growing community of inventors

Garbsen, Germany

Heinz-Dieter Rach