Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
  • B60C19/00—Tyre parts or constructions not otherwise provided for
  • B60C19/08—Electric-charge-dissipating arrangements
  • B60C19/084—Electric-charge-dissipating arrangements using conductive carcasses
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
  • B29D30/00—Producing pneumatic or solid tyres or parts thereof
  • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
  • B29D30/08—Building tyres
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
  • B60C15/00—Tyre beads, e.g. ply turn-up or overlap
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
  • B60C15/00—Tyre beads, e.g. ply turn-up or overlap
  • B60C15/0009—Tyre beads, e.g. ply turn-up or overlap features of the carcass terminal portion
  • B60C15/0018—Tyre beads, e.g. ply turn-up or overlap features of the carcass terminal portion not folded around the bead core, e.g. floating or down ply
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
  • B60C15/00—Tyre beads, e.g. ply turn-up or overlap
  • B60C15/0009—Tyre beads, e.g. ply turn-up or overlap features of the carcass terminal portion
  • B60C15/0036—Tyre beads, e.g. ply turn-up or overlap features of the carcass terminal portion with high ply turn-up, i.e. folded around the bead core and terminating radially above the point of maximum section width
  • B60C15/0045—Tyre beads, e.g. ply turn-up or overlap features of the carcass terminal portion with high ply turn-up, i.e. folded around the bead core and terminating radially above the point of maximum section width with ply turn-up up to the belt edges, i.e. folded around the bead core and extending to the belt edges
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
  • B60C15/00—Tyre beads, e.g. ply turn-up or overlap
  • B60C15/06—Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
  • B60C19/00—Tyre parts or constructions not otherwise provided for
  • B60C19/08—Electric-charge-dissipating arrangements
  • B60C19/088—Electric-charge-dissipating arrangements using conductive beads
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
  • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
  • B60C9/02—Carcasses
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
  • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
  • B60C9/02—Carcasses
  • B60C9/0207—Carcasses comprising an interrupted ply, i.e. where the carcass ply does not continuously extend from bead to bead but is interrupted, e.g. at the belt area, into two or more portions of the same ply
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
  • B29D30/00—Producing pneumatic or solid tyres or parts thereof
  • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
  • B29D30/08—Building tyres
  • B29D2030/088—Building tyres by using a seamless tubular component, e.g. an inner liner, a carcass structure or a belt/breaker during tyre manufacturing on a core or a building drum
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
  • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
  • B60C9/02—Carcasses
  • B60C2009/0215—Partial carcass reinforcing plies, i.e. the plies neither crossing the equatorial plane nor folded around the bead core
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
  • B60C15/00—Tyre beads, e.g. ply turn-up or overlap
  • B60C15/06—Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead
  • B60C2015/0614—Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead characterised by features of the chafer or clinch portion, i.e. the part of the bead contacting the rim

Definitions

• the invention relates to a pneumatic vehicle tire, comprising a superstructure, a carcass and two tire beads each having a bead sole, wherein the carcass extends from a bead sole over the superstructure to the other bead sole, wherein the superstructure and at least one bead sole are designed to be electrically conductive, wherein the Carcass is not designed electrically conductive and has at least one carcass ply, the surface of which has a support of electrically conductive material. Furthermore, the invention relates to a method for producing such a pneumatic vehicle tire.
• tire components are made electrically conductive, so that an electrically conductive path exists from the contact surface of the pneumatic vehicle tire with the roadway to the contact region of the pneumatic vehicle tire to the tire rim. This can be done for example by the use of electrically conductive rubber mixtures.
• Rubber compounds can be reduced mainly by the use of low active fillers, smaller amounts of filler or by the replacement of soot by silica.
• An electrically conductive material is to be understood as meaning a material whose electrical conductivity is so high that the tire has an electrical resistance of not more than 1x10 ⁇ .
• electrically non-conductive rubber mixture is a rubber compound to understand the tire with an electric
• Elements applied to at least one surface of the carcass are exposed to heavy stresses during tire manufacture. For example, if the extensibility of the thread-like elements is not high enough, a reliable dissipation of the electrostatic charge is not guaranteed because the thread-like elements break and the electrically conductive path is interrupted. When using materials other than rubber in the pneumatic vehicle tire, care must also be taken that the connection to the rubber matrix is ensured. For this are often additional Preparation steps necessary. This increases the complexity and complexity of the manufacturing process.
• the invention has for its object to provide a pneumatic vehicle tire, which reliably ensures the electrical conductivity of the vehicle pneumatic tire with simple measures and low structural design.
• the invention is further based on the object to provide a method by means of which such a pneumatic vehicle tire can be produced in a simple manner.
• the object is achieved with respect to the pneumatic vehicle tire by the pad is an electrically conductive rubber compound by the
• Carcass ply extends from the electrically conductive bead sole to the superstructure, wherein the imposed surface of the carcass ply contacts the superstructure and the electrically conductive bead sole by the overlay on the surface of the carcass ply extends contiguously from the electrically conductive bead sole to the superstructure and by the pad both electrically contacted the electrically conductive bead sole and the superstructure, whereby the electrically conductive
• Bead sole and the superstructure are electrically connected to each other.
• the electrically conductive superstructure produces a conductive connection between the tire surface which comes into contact with the road surface and the support of the carcass ply.
• the term "superstructure" means, in particular, the components of treads, belts and intermediate layers between the aforementioned components
• the bead sole is a region of the bead which connects the carcass and the contact surface to the tire rim
• the electrically conductive bead sole provides a conductive connection between the support of the tire rim
• the carcass ply has in its two-dimensional extent two flat outer surfaces, which each form a surface of the carcass ply.
• One advantage is that the electrical conductivity of the pneumatic vehicle tire is reliably ensured by the simple measure of the application of a carcass ply. It is ensured that the discharge of the electrostatic charge from the tire rim via the pneumatic vehicle tire can be done reliably to the road.
• the imposed area of the carcass ply extends in the pneumatic vehicle tire in such a way that the support contacts the electrically conductive bead base and the electrically conductive superstructure and thus an electrically conductive path from the tire surface in contact with the road surface to the contact surface with the tire rim is made.
• Rubber compounds have been tested many times with respect to the requirements in the production and operation of pneumatic vehicle tires. Critical requirements such as sufficient extensibility are thus fulfilled.
• the support of an electrically conductive rubber compound ensures a reliable electrically conductive path from the superstructure to the electrically conductive bead sole.
• the support extends along a carcass ply and can be considered in the construction of the tire as part of this carcass ply.
• the pneumatic vehicle tire thus has no additional component and there is no costly constructive action on the tire.
• Vehicle pneumatic tire reliably guaranteed.
• the electrostatic charge can be reliably dissipated from the vehicle to the roadway.
• the other layers of the sidewall such as the inner layer, the carcass and / or the side strips, be formed of electrically non-conductive material and, for example, with respect to Rolling resistance can be optimized.
• the use of other electrically conductive materials such as metal can thus be avoided.
• the use of these materials is often expensive because, for example, the adhesion to the rubber mixture must be ensured.
• the support between the superstructure and the electrically conductive bead sole extends axially outside the carcass.
• the C-carcass ply is passed around the bead core from axially inward to axially outward and terminates axially outward in a carcass puff which extends to the superstructure.
• the floating carcass ply extends between a bead sole and the superstructure as the axially outermost layer of the carcass. It ends in the area of the bulge and in the area of the superstructure.
• Floating carcass ply in this case has the contiguous support, which contacts both the superstructure and the electrically conductive bead sole.
• An exemplary embodiment of an applied C-carcass ply or for an applied floating one is shown in FIG. 1 or FIG. 2.
• the carcass ply ends in the region of the superstructure and contacts the superstructure at least in its end point, if the support between the electrically conductive bead sole and the superstructure extends axially inwards on the carcass ply and if the overlay in the region of the superstructure up to extends to the end of the carcass ply or beyond and contacted the superstructure and the electrically conductive bead sole.
• the end point of the carcass ply in the area of the superstructure is here as belonging to both surfaces of the
• the split carcass ply extends from one tire bead over the superstructure to the other tire bead and is in the area of the superstructure in Shared circumferential direction.
• the two carcass ply parts can overlap in the area of the superstructure.
• the imposed carcass ply may be a carcass ply portion of a split carcass ply. Two exemplary embodiments of a split carcass ply, each having an upper carcass ply part, are shown in FIGS. 3 and 4.
• the support extends over the entire circumference or over at least a portion of the circumference of the pneumatic vehicle tire.
• This may in particular be one or more strips, in particular 3 to 30 strips, in particular 4 to 20 strips, in particular 5 to 10 strips of an electrically conductive rubber compound which contact the electrically conductive bead sole and the superstructure in a continuous manner and arranged distributed over the circumference of the tire.
• This allows a reliable dissipation of the electrical charge can be achieved with reduced amount of rubber.
• the strips can be arranged equidistantly. As a result, an even over the circumference of the pneumatic vehicle tire mass distribution can be achieved.
• the support extends over the entire length of the carcass ply or over at least a partial region of the length.
• the length of the carcass ply is in this case the extension length from one to the other end of the carcass ply along the carcass ply perpendicular to the circumferential direction of the carcass ply
• Rubber mixture can be minimized.
• the thickness of the support is 0.005 mm to 6.0 mm, in particular 0.01 mm to 2.5 mm, in particular 0.05 mm to 1.2 mm.
• the support is thus thin executable, in particular thinner than other layers of the Side region of a pneumatic vehicle tire, such as carcass, inner layer or side stripes.
• Pneumatic vehicle tires are kept low.
• both tire beads have an electrically conductive bead sole and both electrically conductive bead soles are electrically conductively connected to the superstructure by a support.
• This may also be a support which extends from a bead sole over the superstructure to the other bead sole.
• the method for producing such a pneumatic vehicle tire takes place with the following steps:
• step b the electrical conductivity of the pneumatic vehicle tire between the electrically conductive bead sole and the superstructure is guaranteed. It is significant that this Step only concerns the preparation of the carcass ply. All further
• a further advantage is that the other layers of the side wall, such as the inner layer, the carcass and / or the side strips, be formed of electrically non-conductive material and optimized, for example, with respect to the rolling resistance.
• the carcass ply is a reinforcement layer of the pneumatic vehicle tire.
• Production of the carcass ply in step a) takes place in particular by calendering, wherein reinforcements are embedded in a rubber mixture.
• Reinforcing members extend in this case in the longitudinal extent of the carcass ply, that is to say in the production direction of the calender.
• the reinforcements of the carcass usually run transversely to the carcass
• one or more strips in particular 3 to 30 strips, in particular 4 to 20 strips, in particular 5 to 10 strips, can be applied spaced apart from an electrically conductive rubber mixture. This can be reduced by a simple measure, the amount of electrically conductive rubber compound used and at the same time ensures the reliable dissipation of the electrostatic charge on the finished pneumatic vehicle tire be.
• the strips can be arranged equidistantly. As a result, a uniform mass distribution is achieved.
• Rubber mixture can be minimized.
• Pneumatic vehicle tires are manufactured whose electrical conductivity by the occupancy of a C-carcass ply, a floating carcass ply or a split carcass ply with an overlay of an electrically conductive
• Rubber compound is reliably ensured.
• the invention further relates to a pneumatic vehicle tire, which after the
• FIG. 1 shows the right side of a radial partial section through a tire rim and a pneumatic vehicle tire according to the invention with a carcass having a C carcass ply;
• Figure 2 shows the right side of a radial partial section through a fiction, contemporary pneumatic vehicle tire with a carcass having a floating carcass ply.
• Fig. 3 and Fig. 4 are each a radial partial section through a fiction, contemporary pneumatic vehicle tire with a carcass having a split carcass ply.
• Figure 1 shows the right side of a radial partial section through a passenger car pneumatic tire.
• the vehicle pneumatic tire 1 consisting of rubber compounds includes a radial carcass 3 extending from the right tire bead 2 to the left tire bead, not shown.
• the pneumatic vehicle tire 1 has a superstructure 4 having a tread 5 and a belt 6 disposed between the tread 5 and the carcass 3.
• the superstructure 4, or at least a part thereof, is designed to be electrically conductive and establishes an electrically conductive connection between the surface of the raceway 5 and the carcass 3 that comes into contact with the roadway surface.
• the illustrated tire bead 2 comprises an electrically conductive bead base 9 which extends between the carcass 3 and the
• the pneumatic vehicle tire 1 also has components adjacent to the carcass 3, such as the inner layer 7 and the side strips 8, which adjoin the carcass 3 axially in the side region of the vehicle pneumatic tire or axially on the outside.
• the carcass 3 has a carcass ply 11, which consists of an insert of reinforcements embedded in an electrically non-conductive rubber compound.
• This is a so-called C-carcass ply, which is led around from axially inward to axially outward around tensile bead cores 12 and ends axially outside in a carcass turnup 13, which extends to the superstructure 4.
• the axially outer surface of the carcass bump 13 in this case has a support 14 made of an electrically conductive rubber mixture, which is
• the electrically conductive bead sole 9 comprises electrically conductive material and provides a conductive connection between the support 14 and the contact surface of the pneumatic vehicle tire Tire rim 10 ago.
• the pneumatic vehicle tire 1 thus has an electrically conductive path from the contact surface to the tire rim 10 to the contact surface of the
• the support 14 has a thickness of 0.08 mm and extends continuously over the entire circumference of the pneumatic vehicle tire 1.
• the left portion of the vehicle pneumatic tire 1, not shown, may be designed analogously. But it can also have no support 14 and / or no electrically conductive bead sole 9.
• FIG. 2 shows the right-hand side of a partial radial section through another pneumatic vehicle tire 1.
• the carcass 3 has, in addition to a carcass ply 11, which ends in an outer carcass turn-up 13 below the superstructure, a so-called floating carcass ply 15. This extends contiguous between the electrically conductive bead base 9 and the superstructure 4 as the axially outermost layer of the carcass 3 and ends in the respective areas. Its axially outer surface is covered with a support 14, which contacts the superstructure 3 and the electrically conductive bead sole 14 and electrically conductively connects.
• the overlay 14 is a strip having a thickness of 1 mm and an average width of 10 mm. About the circumference of the tire 6 such strips are arranged at equidistant intervals.
• FIG. 3 shows a radial partial section through a pneumatic vehicle tire 1 comprising a carcass 3 with a split carcass ply, which extends from one tire bead 2 over the superstructure 4 to the other tire bead 2 and in the region of the superstructure 4 in the circumferential direction of the pneumatic vehicle tire 1 into two carcass ply parts 16, 17 is shared.
• the carcass ply part 16 ends in the region of the superstructure 4 and contacts it at the end point 18 of the carcass ply part
• Carcass ply part 16 adjacent tire bead 2 of the vehicle pneumatic tire 1 has an electrically conductive bead sole 9.
• the carcass ply part 16 has a support 14 which extends axially inward along the carcass ply part 16 from the region of the electrically conductive bead base 9 to the end point 18 of the carcass ply part 16 or extends beyond and both the superstructure 4 and the electrically conductive bead sole 9 contacted and connecting them electrically conductive.
• FIG. 4 shows a further partial radial section through a pneumatic vehicle tire 1.
• the carcass 3 of the pneumatic vehicle tire has two carcass plies 11, a carcass ply 11 being a carcass ply divided into two carcass patches 16, 17.
• the carcass ply part 16 has a support 14, which electrically conductively connects the electrically conductive bead base 9 to the superstructure 4.
• a surface of the split carcass ply, not the surface of the carcass, is primarily loaded.
• FIGS. 1 to 4 The exemplary embodiments illustrated in FIGS. 1 to 4 can be produced by means of the method according to the invention.

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Tires In General (AREA)
• Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Priority Applications (3)

Applications Claiming Priority (2)

Related Child Applications (1)

Publications (1)

Family

ID=50070534

Family Applications (1)

Country Status (5)

Cited By (1)

Families Citing this family (6)

Citations (3)

Family Cites Families (12)

• 2013
  • 2013-04-24 DE DE102013104114.0A patent/DE102013104114A1/de not_active Withdrawn
• 2014
  • 2014-02-03 WO PCT/EP2014/051987 patent/WO2014173551A1/de not_active Ceased
  • 2014-02-03 JP JP2016508049A patent/JP2016515492A/ja active Pending
  • 2014-02-03 EP EP14703316.1A patent/EP2988956B1/de active Active
• 2015
  • 2015-10-26 US US14/923,138 patent/US10071604B2/en active Active

Patent Citations (3)

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