• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    a tire is shown which includes a circumferential tread, a pair of sidewalls and a pair of bead portions. each bead portion includes a bead and bead filler. the tire additionally includes at least one carcass ply extending between one bead portion and another. the carcass ply includes a pair of outwardly bent portions radially outward from a respective bead portion. an electronic device is built into the tire. the electronic device is encapsulated in a curable adhesive that includes at least one of natural rubber, styrene-butadiene rubber, and butadiene rubber.
    公开号:BR112017005528B1
    申请号:R112017005528-7
    申请日:2015-10-01
    公开日:2021-06-15
    发明作者:Amy M. Randall；Paul B. Wilson；Terrence E. Wei；William J. Corsaut
    申请人:Bridgestone Americas Tire Operations, Llc；
    IPC主号:
    专利说明:

    FIELD OF THE INVENTION
    [0001] The present disclosure relates to the field of incorporating an electronic device to a tire. More specifically, the present disclosure relates to the field of incorporating a radio frequency identification ("RFID") tag to a tire with an adhesive. BACKGROUND
    [0002] The incorporation of an electronic device, such as a radio frequency identification tag (RFID), to a tire can occur during tire construction and prior to vulcanization or in a post-cure procedure. Such electronic devices are useful for transmitting data, such as tire-specific identification data, to an external reader. Ultra-high frequency ("UHF") tags are typically small and use flexible antennas for data transmission. During the manufacturing process, electronic devices can change position or fall off the tire. Additionally, air bubbles can form around the electronic device during vulcanization. SUMMARY OF THE INVENTION
    [0003] In one embodiment, a tire includes an inner liner, a circumferential tread and a pair of sidewalls. Each flank includes an outer layer of rubber and a pair of bead portions. Each bead portion includes a bead and a bead filler having an apex. The tire additionally includes at least one casing ply extending between one bead and the other. At least a portion of the carcass ply is disposed between the inner liner and the outer rubber layer of each flank. The carcass ply includes a pair of outwardly folded portions, each outwardly folded portion having an outwardly folded end, axially outside a respective bead and radially below the apex of a respective bead fill. The tire additionally includes an electronic device disposed between the inner liner and the outer rubber layer of one of the pair of sidewalls. The electronic device has a sticker disposed on it. The adhesive is one of a solvent-based adhesive and a water-based adhesive. The adhesive includes at least one of natural rubber, styrene-butadiene rubber, and butadiene rubber.
    [0004] In another embodiment, a tire includes a circumferential tread, a pair of sidewalls and a pair of bead portions. Each bead portion includes a bead and bead filler. The tire additionally includes at least one carcass ply extending between one bead portion and another. The carcass ply includes a pair of outwardly bent portions radially outward from a respective bead portion. An electronic device is built into the tire. The electronic device is encapsulated in a curable adhesive that includes at least one of natural rubber, styrene-butadiene rubber, and butadiene rubber.
    [0005] In yet another embodiment, a method for incorporating an electronic device into a tire includes forming a tire carcass by obtaining a pair of bead portions and a carcass ply. Each bead portion includes a bead and bead filler. Forming the tire carcass additionally includes passing a portion of the carcass ply around each portion of the pair of bead portions; The method additionally includes obtaining an electronic device and encapsulating the electronic device in an adhesive selected from the group consisting of a solvent-based adhesive and a water-based adhesive. The adhesive includes at least one of natural rubber, styrene-butadiene rubber, and butadiene rubber. The method also includes affixing the electronic device to the tire casing, forming a "green" (raw) tire by disposing a sidewall compound and a tread compound over the tire casing, and curing the raw tire. . BRIEF DESCRIPTION OF THE DRAWINGS
    [0006] In the accompanying drawings, structures are illustrated which, together with the detailed description provided below, describe exemplary embodiments of the claimed invention. Similar elements are identified with the same reference numerals. It should be understood that elements shown as a single component may be replaced by multiple components and elements shown as multiple components may be replaced by a single component. Drawings are not to scale and the proportion of certain elements may be exaggerated for illustrative purposes.
    [0007] Figure 1 is a cross section of an exemplary embodiment of a tire having an electronic device incorporated therein; and
    [0008] Figure 2 is a schematic drawing of a modality of an electronic device. DETAILED DESCRIPTION
    [0009] The following are definitions of selected terms used in this document. Definitions include various examples or forms of components that fall within the scope of a term and that can be used for implementation. The examples are not intended to be limiting. Both the singular and plural forms of terms must be within the definitions.
    [0010] The terms "axial" and "axially" refer to a direction that is parallel to the axis of rotation of a tire.
    [0011] "Bead" refers to the part of the tire that contacts the wheel and defines a flank boundary.
    [0012] "Circumferentially" and "circumferentially" refer to a direction that extends along the perimeter of the tread surface perpendicular to the axial direction.
    [0013] "Equatorial plane" refers to the plane that is perpendicular to the axis of rotation of the tire and passes through the center of the tire tread.
    [0014] "Radial" and "radial" refer to a direction perpendicular to the axis of rotation of a tire.
    [0015] "Flank" refers to the portion of the tire between the tread and the bead.
    [0016] "Tread" refers to that portion of the tire that comes into contact with the road under normal conditions of calibration and loading.
    [0017] Directions are stated here with reference to the tire's rotation axis. The terms "up" and "upward" refer to a general direction oriented toward the tire tread, while "downward" and "downward" refer to a general direction toward the axle. of tire rotation. Thus, when relative directional terms such as "top" and "bottom" or "top" and "bottom" are used in relation to an element, the "top" or "top" element is closest to the tread of the than the "bottom" or "background" element. Additionally, when relative directional terms such as "above" or "below" are used with respect to an element, an element that is "above" another element is closer to the tread than the other element.
    [0018] The terms "inward" and "internally" refer to a general direction oriented to the equatorial plane of the tire, while "outward" and "outwardly" refer to a general direction opposite the equatorial plane of the tire. tire and oriented the tire sidewall. Thus, when relative directional terms such as "inner" and "outer" are used with respect to an element, the "inner" element is closer to the equatorial plane of the tire than the "outer" element.
    [0019] Figure 1 illustrates a cross section of an exemplary tire 100 having an electronic device 105 incorporated therein. In the illustrated embodiment, tire 100 includes a circumferential tread formed from tread compound 110 and a pair of flanks formed from sidewall compound 115. In one embodiment, tread compound 110 is substantially the same as the tread compound 110. flank 115. In an alternative embodiment, the tread compound and the flank compound are different.
    The pair of flanks includes a first flank formed by a first flank composite 115a and a second flank formed by a second flank composite 115b. In one embodiment, the first flank composite 115a is the same as the second flank composite 115b. The first flank composite 115a extends from a first bead region 120a to the tread composite 110. Similarly, the second flank composite 115b extends from a second bead region 120b to the tread composite 110. Each bead region includes a bead 125a,b and a bead fill 130a,b having an apex 135a,b. In an alternative embodiment (not shown), the bead filling does not have an apex.
    Tire 100 additionally includes a carcass ply 140 extending from the first bead region 120a to the second bead region 120b. Although only a single carcass ply 140 is shown in the illustrated embodiment, it should be understood that two or more carcass plies may be used.
    [0022] The carcass ply 140 passes around each of the beads 125a,b, thus forming a first bent-out portion 145a and a second bent-out portion 145b. The first bent outward portion 145a terminates in a first bent outward end 150a located axially outside the first bead infill 130a and radially below the apex 135a of the first bead infill 130a. Similarly, the second bent outward portion 145b terminates in a second bent outward end 150b located axially outside the second bead infill 130b and radially below the apex 135b of the second bead infill 130a. In an alternative embodiment (not shown), each bent-out portion ends above the apex of the respective bead filling. In a specific modality, the bent-out portion ends in a crown region of the tire.
    In the illustrated embodiment, the tire 100 additionally includes a strap 155 and a ply 160. In an alternative embodiment (not shown), the tire may include two or more straps. In another alternative embodiment (not shown), the tire may include two or more ply covers. In yet another alternative embodiment (not shown), the tarpaulin can be omitted.
    [0024] In the illustrated embodiment, tire 100 additionally includes a first wire reinforcement 165a in the first bead region 120a and a second wire reinforcement 165b in the second bead region 120b. Each wire reinforcement 165a,b passes around the respective bead 125a,b and part of the respective bead fill 130a,b and the carcass ply 140. The wire reinforcements 165a,b can provide structural reinforcement to the tire 100, or they can protect the 140 carcass ply against abrasion. However, it should be understood that the 165a,b yarn reinforcements do not need to fulfill these functions. In an alternative embodiment (not shown), yarn reinforcement can be omitted.
    [0025] Tire 100 also includes a pair of booster fills 170 including a first booster fill 170a located axially outside the first bead fill 130a and a second booster fill 170b located axially outside the second bead fill 130b. In an alternative embodiment (not shown), the backfill is omitted.
    The tire 100 additionally includes a pair of abrasion portions 175, including a first abrasion portion 175a and a second abrasion portion 175b. Each abrasion portion 175 passes at least partially around a bead 125 and bead infill 130 so that each abrasion portion includes a first portion axially disposed outside of a respective bead infill 130, reinforcing infill 170 and folded-out portion 145 of carcass ply 140. Each abrasion portion 175 further includes a second portion disposed below a respective bead 125. In an alternative embodiment (not shown), the abrasion portion is omitted, and the composite of flank 115 extends into bead region 120 and around bead 125.
    [0027] In the illustrated embodiment, a pair of inner liners 180 extends along the interior of the tire, from the first bead region 120a to the second bead region 120b. One or both of the inner liners 180 are constructed of a material having low permeability so that the inner liner 180 contains pressurized air within the tire cavity. In an alternative embodiment (not shown), a single inner lining is used. In another alternative embodiment (not shown), the inner linings are omitted.
    [0028] The electronic device 105 is incorporated into the tire 100. In other words, the electronic device 105 is disposed between the inner liner 180 and the sidewall compound 115, so that it is not visible on the outside of the tire or on the inside. of the tire. In the illustrated embodiment, the electronic device 105 is disposed in the second flank region 115b, at a location radially above the apex 135b of the second bead fill 130b and axially outside the ply of the shell 140. The electronic device 105 is shown as disposed between the main portion of carcass ply 140 and second flank composite 115b. However, it should be understood that the electronic device can be disposed between any two layers of the tire. For example, in one embodiment (not shown), the electronic device may be disposed between an inner liner and a tarpaulin of the housing. In an alternative embodiment (not shown), the electronic device may be disposed between a reinforcing fill and an abrasion portion. In another alternative embodiment (not shown), the electronic device may be disposed between a carcass ply and a bead filler. In yet another alternative embodiment (not shown), the electronic device may be disposed between two carcass plies. In yet another alternative embodiment (not shown), the electronic device may be disposed between a bead pad and flank rubber. The modalities described above should not be interpreted as limiting, as the electronic device can be incorporated anywhere on the tire.
    [0029] Although the illustrated embodiment shows the electronic device 105 disposed on the right side of the tire 100, it should be understood that the electronic device may be disposed on either side of the tire. It should additionally be understood that a tire can have multiple electronic devices. For example, in one modality a device is arranged on each side of the tire. In another alternative embodiment, one device is disposed in a flank region, and another device is disposed in a crown region of a tire. However, multiple devices can be located at various locations on the tire.
    [0030] In an alternative embodiment (not shown), the bead region additionally includes one or more anti-abrasion gussets that pass, at least partially, around the bead and bead filling. In other words, the anti-abrasion reinforcement can include a first portion disposed axially outside the bead and the bead filler, and a second portion disposed below the bead.
    [0031] Figure 2 is a schematic drawing of an embodiment of an electronic device 105. In the illustrated embodiment, the electronic device 105 is an RFID tag having a passive RFID transponder 185 and a pair of antennas 190a,b forming a dipole . In one embodiment, electronic device 105 is oriented in a substantially circumferential direction. It should be understood that the illustrated modality is merely an example, and any electronic device can be used.
    [0032] In the illustrated embodiment, the RFID tag 105 is encapsulated in an adhesive 195. In one embodiment, the adhesive 195 is a solvent-based adhesive, and includes at least one of natural rubber, styrene-butadiene rubber, and rubber of butadiene. In such an embodiment, the solvent-based adhesive may include filler and curing agent dissolved in a volatile organic liquid. In an alternative embodiment, adhesive 195 is a water-based adhesive, and includes at least one of natural rubber, styrene-butadiene rubber, and butadiene rubber. In such an embodiment, the water-based adhesive can include fillers and curing agents suspended in an aqueous medium. The adhesive can be a non-imide based adhesive rather than an acrylic.
    [0033] Adhesive 195 may be a non-pressure sensitive adhesive. For example, adhesive 195 may be a curable adhesive. This type of curable adhesive can crosslink with a layer of the tire during vulcanization of the tire.
    [0034] To incorporate the electronic device 105 to the tire 100, a tire carcass is formed by obtaining the pair of bead portions 120 and the carcass ply 140. A portion of the carcass ply 140 is passed around each portion of the pair of bead portions 120. The electronic device 105 is encapsulated in an adhesive 195, such as one of the adhesives described above. The electronic device 105 is affixed to a desired location during the construction of the tire casing. A raw tire is formed by disposing a sidewall compound 115 and a tread compound 110 on the tire casing. The raw tire is cured in a vulcanizing mold.
    [0035] As explained above, the electronic device can be affixed to the inner liner 180, to the canvas of the carcass 140, or to a bead portion 120, including any of the components of the bead portion described above. In one embodiment, the adhesive 195 has a composition substantially similar to that of the tire layer to which the electronic device 105 is affixed. In such a mode, curing the raw tire will cause the adhesive 195 to crosslink with the tire carcass. However, as would be understood by one of skill in the art, the adhesive can crosslink with the tire casing even if it has a composition that is not substantially equal to that of the tire layer to which the electronic device is affixed.
    [0036] As shown in the Examples below, the adhesive described herein is suitable for use in the manufacture of a tire having an incorporated device. Examples
    [0037] Peel strength measurements were taken to test the mechanical strength and durability of solvent-based adhesives, compared to a stock-to-stock control and/or other adhesives. In the examples below, rubber strips and adhesion blocks were constructed with various rubber compositions for tire structure components such as tire flanks, nylon anti-abrasion reinforcement layers, inner linings, treads and belt layers. For the adhesive, a foam/sponge applicator was used to apply the renewal agent in a thin, even layer over the face of the adhesion block. It was observed that not all adhesives satisfactorily coated and wetted each of the rubber surfaces. The adhesion blocks were dried at room temperature for 5 minutes, after which no visible moisture was evident. The volume of application of adhesives in each Example was approximately the same.
    [0038] In Examples 1 to 13, the uncured rubber strips were joined to the rubber applied as a coating on the adhesion block. The bonded rubber strips were tested using a standard procedure for peel testing at 180° on an Instron 5565 apparatus. These Examples were subjected to peel testing at a rate of 5 cm/min (2 in/min) and at span distance was about 80 mm. In each case, the highest strength indicates the strongest bond.
    [0039] In Examples 14 to 26, the uncured rubber strips were joined to the uncured rubber applied as a coating on the adhesion block, and the samples were cured at 170°C for 15 minutes. The measurement of peel strength after cure primarily shows the strength and durability of the bond between the cured rubber components. After bonding and curing, the rubber strips and adhesion blocks were tested using a standard procedure for peel testing at 180° on an Instron 5565 apparatus. These Examples were subjected to peel testing at a rate of 5 cm /min (2 in/min) and the span distance was 30 mm. In each case, the highest strength indicates the strongest bond.
    [0040] The results of these tests are shown in the tables below. Table 1 - Uncured Flank Compound



    [0041] With respect to the terms "includes" or "including", used in the specification or claims, they are intended to be inclusive in a manner similar to the term "comprise", as that term is interpreted when used as a transitional word in a claim. Furthermore, as far as the use of the term "or" (eg A or B) is concerned, it is intended to mean "A or B or both". When applicants wish to indicate "only A or B but not both", then the term "only A or B but not both" will be used. Therefore, the use of the term "or" in this document is inclusive and not exclusive. See Bryan A. Garner, A Dictionary of Modern Legal Usage 624 (2nd Edition, 1995). Also, with respect to the term "in" used in the specification or claims, it is also intended to mean "in" or "in". Furthermore, with regard to the term "connect" used in the specification or claims, it is intended to mean not only "directly connected to", but also "indirectly connected to", as if connected through another component or other components.
    [0042] While the present disclosure is illustrated by the description of the modalities thereof and although the modalities are described in considerable detail, the applicants do not intend to restrict or limit in any way the scope of the claims appended to such details. Additional advantages and modifications will be readily apparent to those skilled in the art. Therefore, the disclosure, in broad respects, is not limited to specific details, representative methods and mechanisms, and illustrative examples displayed and described. Therefore, deviations from such details may be made without departing from the spirit or scope of the applicant's general inventive concept.
    权利要求:
    Claims (15)
    [0001]
    1. Tire (100), characterized by the fact that it comprises: an inner lining (180); a circumferential tread (110); a pair of flanks, each flank (115a, 115b) including an outer layer of rubber; a pair of bead portions (120), each bead portion including a bead (125a, 125b) and a bead filler having an apex (135a, 135b); at least one carcass ply (140) extending between one bead and another, wherein at least a portion of the carcass ply is disposed between the inner liner (180) and the outer rubber layer of each flank; wherein the carcass ply (140) includes a pair of outwardly folded portions, each outwardly folded portion (145a, 145b) having an outwardly folded end, axially outside a respective heel (130a, 130b) and radially below the apex (135a, 135b) of a respective bead filling; an electronic device (105) disposed between the inner liner (180) and the outer rubber layer of one of the pair of flanks, the electronic device (105) having an adhesive (195) disposed thereon without being mounted on a separate strip of rubber, the adhesive (195) being one of a solvent-based adhesive and a water-based adhesive, and the adhesive (195) including at least one of natural rubber, styrene rubber. butadiene and butadiene rubber.
    [0002]
    2. Tire (100) according to claim 1, characterized in that the adhesive (195) is a non-pressure-sensitive adhesive.
    [0003]
    3. Tire according to claim 1, characterized in that the adhesive is a solvent-based adhesive that includes filler and curing agent dissolved in a volatile organic liquid.
    [0004]
    4. Tire according to claim 1, characterized in that the adhesive is a water-based adhesive that includes filler and curing agent suspended in an aqueous medium.
    [0005]
    5. Tire according to claim 1, characterized in that it further comprises a pair of anti-abrasion gussets, each anti-abrasion gusset passing at least partially around a portion of the pair of bead portions.
    [0006]
    6. Tire (100) according to claim 1, characterized in that it additionally comprises a pair of abrasion portions (175), each abrasion portion (175a, 175b) at least partially passing around one portion of the pair of bead portions (120).
    [0007]
    7. Tire (100) according to claim 1, characterized in that the at least one electronic device (105) is a radio frequency identification tag.
    [0008]
    8. Tire (100) according to claim 1, characterized in that it further comprises a pair of wire reinforcements (165a, 165b), each wire reinforcement passing around a portion of the pair of bead portions (120).
    [0009]
    9. Method for incorporating an electronic device (105) to a tire (100), the method characterized in that it comprises: forming a tire carcass, through the steps of: obtaining a pair of bead portions (120), wherein each bead portion includes a bead (125a, 125b) and a bead filler (130a, 130b), obtaining a carcass ply (140), and passing a portion of the carcass ply around each portion of the pair of bead portions. bead; obtain an electronic device (105); encapsulate the electronic device in an adhesive (195) selected from the group consisting of a solvent-based adhesive and a water-based adhesive, the adhesive including at least one of natural rubber, styrene-butadiene rubber, and rubber butadiene; affix the electronic device to the tire casing without mounting the electronic device on a separate rubber strip; forming a raw tire by disposing a sidewall compound (115) and a tread compound (110) on the tire casing; and cure the raw tire.
    [0010]
    10. Method according to claim 9, characterized in that affixing the electronic device to the tire casing includes affixing the electronic device to the ply of the carcass.
    [0011]
    11. Method according to claim 9, characterized in that affixing the electronic device to the tire casing includes affixing the electronic device to a portion of the pair of bead portions.
    [0012]
    12. Method according to claim 9, characterized in that forming a tire carcass includes obtaining an inner lining.
    [0013]
    13. Method according to claim 12, characterized in that affixing the electronic device to the tire casing includes affixing the electronic device to the inner liner.
    [0014]
    14. Method according to claim 9, characterized in that the adhesive is a non-acrylic adhesive.
    [0015]
    15. Method according to claim 9, characterized in that curing the raw tire causes the crosslinking of the adhesive with the tire carcass.
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    同族专利:
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    法律状态:
    2020-02-04| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2021-04-27| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2021-06-15| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 01/10/2015, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    US201462064799P| true| 2014-10-16|2014-10-16|
    US62/064,799|2014-10-16|
    PCT/US2015/053409|WO2016060851A1|2014-10-16|2015-10-01|Tire having embedded electronic device affixed with adhesive|
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