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Patent
Continental Reifen Deutschland GmbH | Date: 2017-03-29

Vehicle pneumatic tyre for utility vehicles having a carcass (5), having a belt (9) which is built up radially outside the carcass (5) and having a profiled tread (10) which is built up on the belt (9), radially outside the belt (9), wherein the belt (9) is formed from at least four belt layers (14, 17, 13, 15) arranged lying one on the other from radially on the inside to radially on the outside, wherein the first belt layer (14) which is arranged furthest on the inside in the radial direction R is embodied with parallel strength members (24) embedded in rubber, the second belt layer (17) which is arranged on the first belt layer (14) is embodied with parallel strength members (27) embedded in rubber, the third belt layer (13) arranged on the second belt layer (17) is embodied with parallel strength members (23) embedded in rubber, and the fourth belt layer (15) arranged on the third belt layer (13) is embodied with parallel strength members (25) embedded in rubber, characterized in that the third belt layer (13) and the fourth belt layer (15) are working layers in which the strength members (23) of the third belt layer (13) enclose in their orientation an angle with respect to the circumferential direction U where 10 < < 45 and the strength members (25) of the fourth belt layer (15) enclose in their orientation in each case an angle with respect to the circumferential direction U where 10 < < 45, wherein, when viewed in the circumferential direction U of the vehicle tyre, the strength members (23) of the third belt layer (13) have an opposed axial direction of inclination to that of the strength members (25) of the fourth belt layer (15), in that the strength members (24) of the first belt layer (14) enclose in their orientation an angle with respect to the circumferential direction U where 0 < < 5, and the strength members (27) of the second belt layer (17) enclose in their orientation an angle with respect to the circumferential direction U where 40 < < 75.


Patent
Continental Reifen Deutschland GmbH | Date: 2017-01-25

The invention relates to a device for sealing and inflating inflatable objects, in particular for sealing and inflating motor vehicle tyres. Said device comprises a compressor unit as a pressurized gas source, which is designed as a reciprocating piston compressor (10) driven by means of a thrust crank gear. Said reciprocating piston compressor is provided with a variable dead volume of air (9), the content thereof can be varied depending on the temperature of the cylinder head (11).


Patent
Continental Reifen Deutschland GmbH | Date: 2017-04-12

The invention relates to vehicle tyres for use in winter, comprising a tread having profile blocks (1) separated from one another by circumferential grooves (2) and transverse grooves (3), in which profile blocks recesses (4) are formed that are bordered by two recess walls (7), the direction of extension of which recesses deviates from the axial direction by a maximum of 45, and each of which are locally widened by means of at least one channel (5, 6a, 6b), forming a connection between the outer side of the profile and a groove (2), said recess (4) having a width (b) of between 0.4 and 1.0 mm. The recess (4) comprises a mid-section (4a) having a depth (T) of at least 70% of the profile depth (Tp), and two shallow edge sections (4b, 4c) of different depths (T1, T2), wherein the width of the channels (6a, 6b) is two- to three times the recess width (b). A channel (5) running substantially parallel to the outer side of the profile is connected to these channels, which channel (5) leads into the circumferential groove (2) on the deeper edge section (4b) of the recess (4), and the lower edge of which channel coincides with the base of the recess.


Patent
Continental Reifen Deutschland GmbH | Date: 2017-04-12

Tread profile of a pneumatic vehicle tyre - in particular for commercial vehicles - comprising a regroovable tread profile with radially raised profile elements (1, 2, 3, 4, 5) and with grooves (6, 7, 8, 9), which respectively separate two adjacent profile elements (1, 2, 3, 4, 5) from one another, wherein the grooves (6, 7, 8, 9) are bounded inwards in the radial direction R by a groove base (10) and on both sides in the axial direction by a profile element flank, forming the groove wall (12, 13), and wherein at least one regrooving indicator (14) for indicating the regrooving depth is respectively formed in one or more grooves (3), characterized in that, in at least one groove (8), all of the regrooving indicators (14) formed therein are formed in a groove wall (12) at a height H measured in the radial direction R of H>0mm above the groove base (10), wherein the height H corresponds to the maximum radial abrasion position of the tyre for regrooving.


Patent
Continental Reifen Deutschland GmbH | Date: 2016-01-15

A pneumatic vehicle tire for commercial vehicles includes a belt having five belt plies having respective sets of reinforcements. The five plies are identified as first, second, third, fourth and fifth plies. The third ply is a 0 ply and the second and fourth belt are working belt plies. The sets of reinforcements of the first and second plies lying adjacent one side of the 0 ply run upward at respective positive slopes and the sets of reinforcements of the fourth and fifth plies lying adjacent the other side of the 0 ply run upward at respective negative slopes. The reinforcements of the fifth ply and the peripheral direction (A-A) of the tire conjointly define an angle between 3570. The reinforcements in the second and fourth plies having an elongation of 0.2% at 10% breaking load. The elongation is measured using reinforcements taken from a fully vulcanized tire.


Patent
Continental Reifen Deutschland GmbH | Date: 2016-01-12

A pneumatic vehicle tire is configured for mounting on a rim. The tire includes a bead region having a bead core disposed therein and a side wall. A carcass insert extends around the bead region and has a turn-up extending in the direction of the side wall. A rim rubber forms an outer surface of the bead region and includes a first rim rubber part made of an electrically non-conductive rubber mixture and a second rim rubber part made of an electrically conductive rubber mixture. The second rim rubber part runs within the tire and forms an electrically conductive connection to the rim while the first rim rubber part extends beyond the rim flange and is in contact with the rim flange. The first rim rubber part is made of a rubber mixture having a low hysteresis.


Patent
Continental Reifen Deutschland GmbH | Date: 2016-06-20

A pneumatic vehicle tire has a carcass, a belt and a profiled tread. The belt includes four belt plies wherein the third belt ply and the fourth belt ply are working plies. The reinforcement members of the working plies are arranged at an angle to the circumferential direction of 10 to 45 and the reinforcement members of the fourth belt ply at an angle of 10 to 45. The reinforcement members of the third and fourth belt plies are arranged such that they cross one another. The reinforcement members of the first belt ply are arranged at an angle of 40 to 75 and the reinforcement members of the second belt ply are arranged at an angle of 0 to 5 to the circumferential direction. The reinforcement members of the third belt ply and the reinforcement members of the first belt ply have the same direction of inclination.


Patent
Continental Reifen Deutschland GmbH | Date: 2016-04-29

A method for making a vehicle tire in which a tire carcass is expanded radially on shaping drum, wherein the sidewalls arranged on the tire carcass are turned up by inflatable shaping bladders. This involves moving two pusher bells, which are arranged to the sides of the tire carcass, in the direction of the center of the blank, wherein the pusher bells are respectively mounted on a movable first and second carriage and are respectively moved in the axial direction by a first and second drive by way of a coupling, wherein the pusher bells are pressed laterally against the shaping bladders. When disequilibrium of forces on the two sides of the shaping bladders is set, the pressing positions of the two pusher bells are balanced, the two drives being arranged on a freely mounted third carriage.


Patent
Continental Reifen Deutschland GmbH | Date: 2016-09-28

A pneumatic vehicle tire is provided. The tire includes a thread, an inner surface lying opposite the thread, a self-sealing sealant and a sound-absorbing open-cell foam ring arranged inside the pneumatic vehicle tire. The foam ring is adhesively attached to the inner surface and adheres to the self-sealing sealant which is applied before the sound-absorbing open-cell foam ring is attached to the inner surface. The self-sealing sealant has, at least immediately after being applied, a tackiness required for an adhesive attachment of the sound-absorbing open-cell foam ring. A closed-cell material ring is arranged between the sound-absorbing foam ring and the self-sealing sealant to prevent a diffusion of the sealant into the open-cell foam ring. The closed-cell material ring effects an airtight condition.


A vulcanizing mold for winter and all-season vehicle tires includes a mold body and an inner side mold surface having a negative tread profile having negative profile elements for molding a positive tread profile having positive profile elements of the vehicle tire to be vulcanized. Lamellar plates are arranged in the negative profile elements and configured to generate sipes in the positive profile elements. The negative profile elements include a shoulder negative profile element and at least one venting slot arranged within the shoulder negative profile element. The venting slot runs parallel and in spaced relationship to one of the lamellar plates arranged in the shoulder negative profile element. At least one cylindrical vent is arranged only axially outwards with reference to the venting slot.

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