CN1874905A - Tire wheel assembly - Google Patents
Tire wheel assembly Download PDFInfo
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- CN1874905A CN1874905A CN 200480031793 CN200480031793A CN1874905A CN 1874905 A CN1874905 A CN 1874905A CN 200480031793 CN200480031793 CN 200480031793 CN 200480031793 A CN200480031793 A CN 200480031793A CN 1874905 A CN1874905 A CN 1874905A
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- rubber
- tire
- weight
- wheel assembly
- elastic body
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- 229920001971 elastomer Polymers 0.000 claims abstract description 69
- 239000005060 rubber Substances 0.000 claims abstract description 66
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 50
- 229910052751 metal Inorganic materials 0.000 claims abstract description 36
- 239000002184 metal Substances 0.000 claims abstract description 36
- 239000000203 mixture Substances 0.000 claims abstract description 34
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 25
- 239000006229 carbon black Substances 0.000 claims abstract description 21
- 150000001993 dienes Chemical class 0.000 claims abstract description 14
- 239000006087 Silane Coupling Agent Substances 0.000 claims abstract description 11
- 229910017052 cobalt Inorganic materials 0.000 claims description 17
- 239000010941 cobalt Substances 0.000 claims description 17
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 17
- 239000002253 acid Substances 0.000 claims description 16
- 239000005864 Sulphur Substances 0.000 claims description 15
- YRKCREAYFQTBPV-UHFFFAOYSA-N acetylacetone Chemical compound CC(=O)CC(C)=O YRKCREAYFQTBPV-UHFFFAOYSA-N 0.000 claims description 15
- TZMFJUDUGYTVRY-UHFFFAOYSA-N ethyl methyl diketone Natural products CCC(=O)C(C)=O TZMFJUDUGYTVRY-UHFFFAOYSA-N 0.000 claims description 15
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 14
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 13
- 229910052742 iron Inorganic materials 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims 1
- 238000005728 strengthening Methods 0.000 claims 1
- FJDJVBXSSLDNJB-LNTINUHCSA-N cobalt;(z)-4-hydroxypent-3-en-2-one Chemical compound [Co].C\C(O)=C\C(C)=O.C\C(O)=C\C(C)=O.C\C(O)=C\C(C)=O FJDJVBXSSLDNJB-LNTINUHCSA-N 0.000 abstract description 3
- 239000012763 reinforcing filler Substances 0.000 abstract 1
- 235000019241 carbon black Nutrition 0.000 description 18
- 230000000052 comparative effect Effects 0.000 description 11
- 230000000694 effects Effects 0.000 description 10
- 230000032683 aging Effects 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 8
- 230000002708 enhancing effect Effects 0.000 description 6
- 239000000758 substrate Substances 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 238000004073 vulcanization Methods 0.000 description 5
- 210000002683 foot Anatomy 0.000 description 4
- 230000006872 improvement Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000005011 phenolic resin Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- ZZMVLMVFYMGSMY-UHFFFAOYSA-N 4-n-(4-methylpentan-2-yl)-1-n-phenylbenzene-1,4-diamine Chemical compound C1=CC(NC(C)CC(C)C)=CC=C1NC1=CC=CC=C1 ZZMVLMVFYMGSMY-UHFFFAOYSA-N 0.000 description 3
- 244000043261 Hevea brasiliensis Species 0.000 description 3
- CUJRVFIICFDLGR-UHFFFAOYSA-N acetylacetonate Chemical compound CC(=O)[CH-]C(C)=O CUJRVFIICFDLGR-UHFFFAOYSA-N 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- 239000000806 elastomer Substances 0.000 description 3
- 229920003052 natural elastomer Polymers 0.000 description 3
- 229920001194 natural rubber Polymers 0.000 description 3
- 238000010998 test method Methods 0.000 description 3
- 239000011787 zinc oxide Substances 0.000 description 3
- GEYOCULIXLDCMW-UHFFFAOYSA-N 1,2-phenylenediamine Chemical compound NC1=CC=CC=C1N GEYOCULIXLDCMW-UHFFFAOYSA-N 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 125000000217 alkyl group Chemical group 0.000 description 2
- JAWGVVJVYSANRY-UHFFFAOYSA-N cobalt(3+) Chemical compound [Co+3] JAWGVVJVYSANRY-UHFFFAOYSA-N 0.000 description 2
- DIOQZVSQGTUSAI-UHFFFAOYSA-N decane Chemical compound CCCCCCCCCC DIOQZVSQGTUSAI-UHFFFAOYSA-N 0.000 description 2
- 230000020169 heat generation Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- GEMHFKXPOCTAIP-UHFFFAOYSA-N n,n-dimethyl-n'-phenylcarbamimidoyl chloride Chemical compound CN(C)C(Cl)=NC1=CC=CC=C1 GEMHFKXPOCTAIP-UHFFFAOYSA-N 0.000 description 2
- 150000007524 organic acids Chemical class 0.000 description 2
- 229920001021 polysulfide Polymers 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- VTHOKNTVYKTUPI-UHFFFAOYSA-N triethoxy-[3-(3-triethoxysilylpropyltetrasulfanyl)propyl]silane Chemical compound CCO[Si](OCC)(OCC)CCCSSSSCCC[Si](OCC)(OCC)OCC VTHOKNTVYKTUPI-UHFFFAOYSA-N 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- 235000014692 zinc oxide Nutrition 0.000 description 2
- HNNQYHFROJDYHQ-UHFFFAOYSA-N 3-(4-ethylcyclohexyl)propanoic acid 3-(3-ethylcyclopentyl)propanoic acid Chemical compound CCC1CCC(CCC(O)=O)C1.CCC1CCC(CCC(O)=O)CC1 HNNQYHFROJDYHQ-UHFFFAOYSA-N 0.000 description 1
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229920001342 Bakelite® Polymers 0.000 description 1
- 229910001369 Brass Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000005062 Polybutadiene Substances 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000004637 bakelite Substances 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- 239000004327 boric acid Substances 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 229920005549 butyl rubber Polymers 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- BKFAZDGHFACXKY-UHFFFAOYSA-N cobalt(II) bis(acetylacetonate) Chemical compound [Co+2].CC(=O)[CH-]C(C)=O.CC(=O)[CH-]C(C)=O BKFAZDGHFACXKY-UHFFFAOYSA-N 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000007822 coupling agent Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-M hydrosulfide Chemical compound [SH-] RWSOTUBLDIXVET-UHFFFAOYSA-M 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
- 229920001195 polyisoprene Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 238000005987 sulfurization reaction Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Tires In General (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
A run flat tire wheel assembly having a run flat support member formed by a ring-shaped metal shell and rubbery elastic members in an inside cavity of a tire/rim, wherein the rubbery elastic member comprises a rubber composition including (A) 100 parts by weight of a diene-based rubber and (B) (i) 0.1 to 5 parts by weight of cobalt acetyl acetonate and/or (B) (ii) (a), as a reinforcing filler, 40 to 90 parts by weight of carbon black/silica in a ratio of 10/1 to 1/2 (weight ratio) and (b) 1 to 20% by weight based upon the weight of the silica, of a silane coupling agent, whereby the bondability between the ring-shaped metal shell and rubbery elastic members is improved.
Description
Technical field
The present invention relates to be used for the air-inflation tyre that can carry out restricted running under damage or the gas leakage state (below, be called Runflat tire) tire wheel assembly, and then specifically, relate to the close-burning tire wheel assembly of the contact portion of the annular metal shell of having improved the support body for run flat that constitutes by annular metal shell and rubber-like elastic body in the interior blank part that is arranged on the tire/wheel rim and rubber-like elastic body.
Background technology
For air-inflation tyre, even demand a kind of in the travelling of automobile etc. because tyre puncture or blow out waits presses under the situation of rapid decline in causing, still have the Runflat tire of the urgent driving possibility of the certain distance that can travel, proposed multiple scheme corresponding to this demand.As this motion, for example in Japanese kokai publication hei 10-297226 communique and Japanese Unexamined Patent Application Publication 2001-519279 communique, proposed on the wheel rim of blank part in airtyred support body for run flat (core body) to be installed, thus the technology that can leak gas and exercise by the inflation that is pierced by its support.
Above-mentioned support body for run flat has with the endless member of outer circumferential side as areal of support, at its two foots place resilient ring is installed, and forming with the resilient ring is that intermediary is with the structure of support body supports on wheel rim.Used the technology of this support body for run flat, for general airtyred wheel/wheel rim in the past, do not need to apply special transformation, just can directly use wheel/wheel rim, so have the advantage of the airtyred manufacturing that can directly utilize in the past, processing, erecting equipment.
Relative therewith, as traditional method, also have reinforced sidewall and tire flat is travelled become possible technology, but this technology exists the problem that can not bring into play sufficient performance under the higher tire size of tire cross-section height, in addition, as the technology that core body is set at the interior blank part of tire as described above, have core is made solid situation, but like this because core does not have flexibility, therefore there is the problem that difficulty is installed, and then utilize special rim structure and the motion of tire construction especially in addition, but such motion is because tire, wheel does not all have commonality, therefore exists the problem that has applied undue burden to the user.
On the other hand, used the technology of above-mentioned support body for run flat, though excellence aspect commonality, installation property, the cohesive force of the contact surface of resilient ring and endless member has very big influence to the durability of support body for run flat, largely its durability of the left and right sides.Therefore,, prolong the tire flat operating range, need the betal can surface of improvement supporter and the cohesiveness and the durability thereof of rubber elastomer for the durability of the support body for run flat that improves the tire/wheel assembly that support body for run flat has been installed.
Summary of the invention
Present inventors in for example Japan special permission application 2002-271795 number (applying date: Japan puts down on September 18th, 14) (TOHKEMY 2004-106692 communique) etc., proposed to improve this close-burning technology in the past.The present invention is the result that it is further improved.
Therefore, the objective of the invention is to, further improvement constitutes the support body for run flat annular metal shell of Runflat tire wheel assembly and the cohesiveness of rubber elastomer, the durability of improvement support body for run flat and gas leakage rideability.
According to the present invention, a kind of tire wheel assembly is provided, it is the Runflat tire wheel assembly that has the support body for run flat that is formed by annular metal shell and rubber-like elastic body at the interior blank part of tire/wheel rim, wherein, by constituting above-mentioned rubber-like elastic body by following rubber composition, thereby improved the cohesiveness of annular metal shell and rubber-like elastic body, described rubber composition contains: (A) the alkadiene rubber of 100 weight portions; And (B) the pentanedione acid cobalt of (i) 0.1～5 weight portion; and/or (B) (ii) (a) carbon black/silica of cooperating as the ratio that strengthens property extending agent, 40～90 weight portions and (b) be the silane coupling agent of 1～20 weight % with respect to above-mentioned silica weight with 10/1～1/2 (weight ratio).
Preferred first mode of the present invention is by constituting rubber-like elastic body by the rubber composition that contains pentanedione acid cobalt, thus the effect that obtains shortening vulcanization process and improve cohesive force.
Preferred second mode of the present invention is by using following rubber composition as rubber-like elastic body; thereby can improve the heat-proof aging cohesiveness and the durability of rubber-like elastic body and annular metal shell (for example iron and steel or corrosion-resistant steel etc.); described rubber composition is by in alkadiene rubber; except pentanedione acid cobalt; ratio with specified quantitative is used carbon black and silica; or do not use pentanedione acid cobalt and use carbon black and silica, and then cooperate silane coupling agent to form therein with respect to the specified quantitative of silica with the ratio of specified quantitative.
Description of drawings
Fig. 1 is the radial section drawing at main position of an embodiment of expression tire wheel assembly of the present invention.
Fig. 2 is the radial section drawing at main position of another embodiment of expression tire wheel assembly of the present invention.
Fig. 3 is the radial section drawing at main position of the another embodiment of expression tire wheel assembly of the present invention.
Fig. 4 is the accompanying drawing of an example of the adhesive surface of expression annular metal shell of tire wheel assembly of the present invention and rubber-like elastic body.
The specific embodiment
(a, an the), are interpreted as comprising the situation of a plurality of objects to employed singulative in this specification and the appended claims, unless obviously be not like this from grammer Wen Yi.
According to first mode of the present invention; in the Runflat tire wheel assembly of the support body for run flat that the betal can and the rubber-like elastic body that have by high rigidity form; by by alkadiene rubber that comprises 100 weight portions and 0.1～5 weight portion; the rubber composition of the pentanedione acid cobalt of preferred 0.5～3 weight portion constitutes above-mentioned rubber-like elastic body; thereby obtain the tire wheel assembly that the cohesiveness with the annular metal shell obtains improveing; and then preferred bond area by guaranteeing to stipulate, can give the enough cohesive forces of support body for run flat when tolerating wheel rim and installing or the load of tire flat when travelling.
According to second mode of the present invention, in the Runflat tire wheel assembly of the support body for run flat that the betal can and the rubber-like elastic body that have by high rigidity form, can be by constituting above-mentioned rubber-like elastic body by following rubber composition, obtained improveing the close-burning tire wheel assembly of rubber-like elastic body and annular metal shell, described rubber composition is the alkadiene rubber with respect to 100 weight portions, as enhancing property extending agent with carbon black and silica with carbon black/silica (weight ratio)=10/1～1/2, preferred 6/1～1/2 ratio, cooperate 40～90 weight portions altogether, preferred 60～80 weight portions, and with respect to silica weight cooperation 1～20 weight %, the silane coupling agent of preferred 5～15 weight % and the rubber composition that forms; More preferably further make the above-mentioned pentanedione acid cobalt that comprises 0.1～5 weight portion, preferred especially 0.5～3 weight portion in the alkadiene rubber of 100 weight portions; thereby obtained improveing the close-burning tire wheel assembly of rubber-like elastic body and annular metal shell; and then preferred bond area by guaranteeing to stipulate, give the enough cohesive forces of support body for run flat when tolerating wheel rim and installing or the load of tire flat when travelling.
Present inventors are devoted to improve the annular metal shell of support body for run flat and the cohesiveness of rubber-like elastic body.Therebetween in order to make steel and rubber bound, usually implement the plating of brass etc. in the steel side, thereby the effect that obtains stipulating, use adhesive agent in addition or indirectly, perhaps implement special surface treatment, attempt to improve cohesiveness, but any method or operation all need spended time and cost, so a lot of shortcomings are arranged in the practicality.In addition, by cooperating high-sulfur, can make it directly to bond, but be accompanied by high-sulphur cooperation, the problem that has heat-resistant aging to worsen with iron in the elastomeric compound side.Therefore,, carried out using silica and silane coupling agent to replace the enhancing Research on effect of bringing by carbon black, found that to have the effect of improvement, thereby finish the present invention to improve heat-resistant aging as purpose.
Below, specifically describe the present invention by graphic example.
Fig. 1, Fig. 2 and Fig. 3 are the radial section drawings at main position of the representational embodiment of expression tire wheel assembly of the present invention (wheel).
For example, as Fig. 1, Fig. 2 and shown in Figure 3, support body for run flat 1 involved in the present invention by the annular metal shell in the blank part 3 that is inserted into air-inflation tyre 24,5 or 6 and rubber-like elastic body 7 form.This support body for run flat 1 made the external diameter shape littler than the internal diameter of blank part 3, and the internal diameter of its internal diameter and airtyred bead part has roughly the same size for the inner face with the blank part 3 of air-inflation tyre 2 maintains a certain distance.This support body for run flat 1 is assembled on the wheel rim 8 of wheel with air-inflation tyre 2 with the state of the inboard that is inserted into air-inflation tyre 2, thereby has constituted tire wheel assembly.When this tire wheel assembly is assembled in that automobile etc. is gone up and during the situation that taken place that in enforcement air-inflation tyre is pricked etc., then because of by bundle flat tire 2 become by the state that outer peripheral face supported of support body for run flat 1, exercise thereby can carry out prevent air escape.
As mentioned above, the support body for run flat of tire wheel assembly of the present invention is made of annular metal shell and rubber-like elastic body, annular metal shell 4,5 or 6 is formed with continuous areal of support in the outside in order to support the tire pricked etc., inboard then form with about sidewall be the shape of foot.The areal of support in the outside can adopt different shape, it for example can be smooth shape as shown in Figure 1, also can be that the shape with cross-sectional plane its circumferencial direction quadrature as shown in Figure 2 is the such shape of convex surface (number of arranging along tire axial of this convex surface is illustrated in figure 2 as 2 in the outside, perhaps can be 3 or more than, and then can also be single convex surface), and then this areal of support still can be to be made of 2 or convex surface more than it as shown in Figure 3, and the bump when its recess sets the cross section and travels to give gas leakage for circular resilient ring 9 relaxes ability, and/or with rubber-like elastic body the annular metal shell is separated and the sidewall that makes the annular metal shell directly and wheel rim join, can keep the shape of stable mated condition etc.When forming the situation of areal of support like this,,, just can prolong the lasting operating range that tire flat travels as long as can improve the bonding of metal and rubber-like elastic body according to the present invention.
Rubber-like elastic body is installed in respectively in the end (with reference to figure 1 or Fig. 2) of annular metal shell two foots or two foots (with reference to figure 3), by directly touch about wheel rim on support the ring-type betal can.This rubber-like elastic body is made of rubber, relaxes bump and the vibration from tire that the annular metal shell is subjected to when blowing out etc., plays the effect that prevents with respect to the slip of wheel rim simultaneously, thus with annular metal shell stable support on wheel rim.
As shown in Figure 4, have crash-resistant cohesive force with rubber-like elastic body 7, preferably guarantee to have the bond area of regulation though constitute the annular metal shell 5 of support body for run flat 1.During the wheel rim operation or the load of tire flat when travelling, by zero dimensionization, the bond area note is being made S (cm by rim diameter R (inch)
2) time, it is 4.5cm than S/R
2Or more than it, be preferably 8～20cm
2/ inch.Here so-called bond area, be meant the metal of one-sided end of annular metal shell and the bond area of rubber-like elastic body, that is, with the cross-sectional plane of its circumferencial direction quadrature in annular metal shell end and the table/back side of the contacted betal can of rubber-like elastic body and whole bond areas that end face along the circumferential direction rounds.
And then it is axial and radially that the adhesive surface of preferred annular metal shell 5 and rubber-like elastic body 7 comprises, further preferred both are roughly equal.By can form like this can bear when tire flat travels produce axially, the structure of the power aspect two radially.
In Fig. 1,2 and 3, support body for run flat 1, air-inflation tyre 2, wheel rim 8 are the center with the S. A. of wheel (figure does not show), form coaxial ring-type.And there is no particular limitation for the size of betal can, but preferred thickness is 0.5～3.0mm, width with about tire tire toe the interval about equally.
Tire wheel assembly of the present invention, for the be situated between weight of tire ground support automobile that having has taken place to blow out waits etc. of centre, betal can 4,5 or 6 is made of metallic material.As such metal, can list examples such as iron, corrosion-resistant steel, aluminum alloy.
In the present invention, rubber-like elastic body is stably to support the ring-type betal can and improved close-burning rubber-like elastic body with the annular metal shell, can be by having cooperated high-sulphur alkadiene rubber to constitute.Alkadiene rubber as the present invention uses can list natural rubber, polyisoprene rubber, SB rubber, poly-butadiene rubber, butyl rubber, chloroprene rubber, government rubber etc.These rubber can separately or mix and use.
In first mode of the present invention; in order to improve the cohesiveness of annular metal shell and rubber elastomer; with respect to the alkadiene rubber of 100 weight portions, cooperated the pentanedione acid cobalt of 0.1～5 weight portion, preferred 0.5～3 weight portion to form rubber-like elastic body.If this use level is very few, then if the bond effect that can not obtain wishing too much opposite, then is accompanied by the increase cohesive force reduction of bonding interface, and is therefore unsatisfactory.The pentanedione acid cobalt that uses in the present invention has formula Co (acac)
2(ac represents the pentanedione acidic group in the formula) or Co (acac)
3These are commercially available well-known cmpds such as キ シ ダ chemical company.And, can and with the organic acid cobalt (for example cobalt of naphthenic acid, the new decane acid of boric acid, geocerellite etc.) of 0.1～5 weight portion as cobalt.
In second mode of the present invention; in order to improve the durability of annular metal shell 5 and rubber-like elastic body 7; alkadiene rubber with respect to 100 weight portions; in above-mentioned first mode on the basis of the pentanedione of used specified amount acid cobalt; perhaps do not use pentanedione acid cobalt and directly, cooperate carbon black, silica and the silane coupling agent of specified quantitative to form rubber-like elastic body 7 as described above.The cooperation of the carbon black of the rubber composition of Shi Yonging and silica in the present invention, if the cooperation ratio of carbon black too much heat generation uprise, promoted the deterioration of rubber or bonding interface, therefore undesirable, if the cooperation ratio of opposite silica is too much, then production efficiency reduces because processability worsens, and is therefore undesirable.In addition, if the total use level of carbon black and silica is too much, so then because the dispersed characteristic that can not obtain wishing that reduces is therefore undesirable, if opposite very few, then the reduction of enhancing property is therefore undesirable.In addition, according to the present invention, in above-mentioned rubber composition, cooperate the silane coupling agent of specified quantitative.If this use level is very few, then silica is insufficient with combining of rubber, and enhancing property or heat generation reduce, and is therefore undesirable, if too much opposite, then owing to the excessive cooperation of coupling agent, plasticization effect uprises, and is therefore undesirable.
The carbon black and the silica that use in second mode of the present invention can use any one can be engaged in carbon black and silica in rubber, the particularly rubber composition for tire.As carbon black, in the ASTM coding, be the carbon black of N300 number (HAF) or N500 number (FEF) preferably.For example can enumerate N330, N339, N550 etc.These carbon blacks can use separately or by combination arbitrarily.On the other hand, as silica, so long as, can use as the grade of rubber enhancing with the particle diameter of extending agent use.
The silane coupling agent that uses in the rubber composition of the present invention's second mode can use any one can be engaged in silane coupling agent in the rubber composition that tire and other rubber use.As preferred concrete example, can enumerate for example two (3-triethoxysilylpropyltetrasulfide) tetrasulfides, two (3-triethoxysilylpropyltetrasulfide) bisulfide etc.
Preferred mode according to second mode of the present invention, by at above-mentioned (B) (ii) in the composition, the sulphur that further cooperates 1～10 weight portion, preferred 2～8 weight portions with respect to the alkadiene rubber of 100 weight portions, can obtain the enhancing increase of silica and rubber, and then with the effect that metallo-cohesiveness improves, be preferred therefore.
In rubber composition of the present invention, as long as without prejudice to purpose of the present invention, can be all the time other additive of institute's cooperation usually in rubber composition, such in the past use level and the method for usefulness cooperates.
In the rubber composition that the present invention uses, except above-mentioned necessary composition, can also be engaged in tire purposes and other the ordinary rubber purposes the various additives that generally cooperate, the for example intensifier of carbon black or silica etc. (filler), various oil, ageing resistant, plasticizer, silane coupling agent etc., this complex can use in sulfuration with the mixing composite that forms of general method.As long as these additive-treated oil use levels can be made as general use level in the past without prejudice to purpose of the present invention.
Embodiment
Below, and then the present invention is described by embodiment, but scope of the present invention is not limited to these embodiment.
Embodiment 1～4 and comparative example 1～4
Use confirms effect of the present invention by the rubber-like elastic body that the rubber composition that cooperates (weight portion) shown in the Table I constitutes.
Below, (at first the composition that mixes beyond sulphur removal and the vulcanization accelerator with banbury mixers reaches till 150 ℃ up to temperature the rubber-like elastic body sample of modulation cooperation (weight portion) as shown in Table I (size: 5.5mm is thick * 2.5cm is wide * 8cm is long), add sulphur and vulcanization accelerator then, under 80 ℃ * 3 minutes condition, mix), with the heating of 150 ℃ * 60 minutes condition it is bonded on the said sample substrate (iron).The results are shown in table 1.
Table I
| Comparative example 1 | Comparative example 2 | Comparative example 3 | Comparative example 4 | Embodiment 1 | Embodiment 2 | | Embodiment 4 | ||
| Cooperate (weight portion) natural rubber *1Carbon black *2Zinc white *3Ageing resistant *4Naphthenic acid Co *5 Co(acac) 3 *6(containing the Co element) *7Alkyl phenol resin *8Sulphur *9 | 100 50 5 1 0.5 - (0.05) 0 5 | 100 50 5 1 2 - (0.2) 2 5 | 100 50 5 1 3 - (0.3) 4 5 | 100 50 5 1 4 - (0.4) 5 5 | 100 50 5 1 - 0.31 (0.05) 0 5 | 100 50 5 1 - 1.23 (0.2) 2 5 | 100 50 5 1 - 1.79 (0.3) 4 5 | 100 50 5 1 - 2.40 (0.4) 5 5 | |
| 150 ℃ of flow graphs | T 10 T 90 MH | 0 (benchmark) 0 (benchmark) 100 | -0’20” -1’15” 102 | -0’35” -2’05” 105 | -1’00” -2’30” 115 | -2’20” -10’30” 110 | -2’35” -12’20” 126 | -2’40” -15’10” 138 | -2’35” -16’15” 143 |
| Initial adhesion | The rubber-covered rate of peeling force [%] | 100 30 | 125 70 | 147 100 | 181 100 | 189 100 | 250 100 | 261 100 | 317 100 |
| The thermal ageing bonding | The rubber-covered rate of peeling force [%] | 100 0 | 132 30 | 100 80 | 160 100 | 178 100 | 287 100 | 356 100 | 449 100 |
| Durability test | 100 | - | - | - | 101 | 105 | 115 | 120 | |
The Table I footnote
*1：RSS#3
* 1: clear and キ ヤ ボ Star ト (strain) system char N 220
* 3: just with No. 3, chemistry industry (strain) oxygenerating zinc
* 4:FLEXSYS makes phenylenediamine aging inhibitor SANTOFLEX 6PPD
* 5: big Japanese イ Application キ chemical frbre industry (strain) system cobalt naphthenate (Co content is 10%)
* 6: キ シ ダ chemistry (strain) system pentanedione acid cobalt (III)
* 7: at Co (acac)
3Amount with the total cobalt element that contains in the cobalt naphthenate
* 8: Hitachi changes into industry (strain) ヒ ノ one Le 2501Y
* 9: thin well chemical frbre industry (strain) is made insoluble sulphur
The test method of estimating rerum natura is as described below.
Flow graph:, obtain 10% sulphidity (T of rubber by using the smart mechanism of Japan to make the curing curve of the DISK RHEO METER mensuration of institute
10), 90% sulphidity (T
90).In addition, be 100 to carry out exponential representation (MH) for maximum torque with comparative example 1.
Peeling force: the adhesion test method with JIS K6256 polysulphide rubbers and hot plasticity rubber is that benchmark is measured.Value with comparative example 1 is carried out exponential representation as 100.Numerical value is big more, expression cohesiveness good more (thermal ageing condition: 80 ℃ * 192 hours).
Rubber-covered rate (%): be illustrated in the rubber-covered rate after peeling off, do not have fully to be taken as 0% when rubber-covered, be taken as 100% when being covered by rubber fully to substrate surface.
Durability test
Above-mentioned test is installed on the 2500cc manned vehicle, and (205/55R1689V, size rim are 16 * 61/2JJ), and the tire internal gas pressure that makes preceding right side is 0kPa, and other 3 tire internal gas pressures are 200kPa, travel to breaking down with the speed of 90km/hr with tire.The result is 100 to carry out exponential representation with the value of comparative example 1.Numerical value is big more, and the expression durability is good more.
As shown in Table I, according to the present invention, by cooperate organic acid cobalt, sulphur, bakelite A type alkyl phenol resin, carbon or the phenylenediamine ageing resistant of specified quantitative in alkadiene rubber, the rubber-covered rate on substrate surface is good as can be known, and peeling force strengthens.
Standard example 1, embodiment 5～12 and comparative example 5
Use confirms effect of the present invention by the rubber-like elastic body that the rubber composition that cooperates shown in the Table II constitutes.Promptly, (at first the composition that mixes beyond sulphur removal and the vulcanization accelerator with banbury mixers reaches till 150 ℃ up to temperature the rubber-like elastic body sample of modulation cooperation (weight portion) as shown in Table II (size: 5.5mm is thick * 2.5cm is wide * 8cm is long), adding sulphur and vulcanization accelerator then mixes under 80 ℃ * 3 minutes condition), the condition heating of substrate (iron) with 150 ℃ * 60 minutes is bonded in it on sample then.With following method the sample that obtains is tested, be the results are shown in Table II.
Peel test
Adhesion test method with JIS K6256 polysulphide rubbers and hot plasticity rubber is that benchmark is measured.
Peeling force: with the value of standard example 1 is 100 to carry out exponential representation.Numerical value is big more, and expression cohesiveness is good more.
Rubber-covered rate (%): the rubber-covered rate to substrate surface of expression after peeling off, do not have fully to be taken as 0% when rubber-covered, be taken as 100% when being covered by rubber fully.
The durable evaluation of real vehicle
Making the tire size respectively is the tire wheel assembly of the present invention (standard example 1, embodiment 5,7,9,11) of 16 * 6 1/2JJ and the tire wheel assembly of making according to comparative example 5 in the past for 205/55R1689V, size rim.
Use mounting of tyre on the 2500cc manned vehicle above-mentioned test, the tire internal gas pressure that makes preceding right side is 0kPa, and the tire internal gas pressure at other 3 places is 200kPa, travels to breaking down with the speed of 90km/hr.The result as 100, carries out exponential representation with the value of standard example 1 in Table II.This numerical value is big more, and the expression durability is good more.
Table II
| Standard example 1 | | Embodiment 6 | | | Embodiment 9 | Embodiment 10 | Embodiment 11 | Embodiment 12 | Comparative example 5 | ||
| Cooperate (weight portion) | 100 70 - - 5 1 2 5 5 | 100 60 10 1.5 5 1 2 5 5 | 100 60 10 1.5 5 1 2 5 2.5 | 100 50 20 3 5 1 2 5 5 | 100 50 20 3 5 1 2 5 2.5 | 100 40 30 4.5 5 1 2 5 5 | 100 40 30 4.5 5 1 2 5 2.5 | 100 30 40 6 5 1 2 5 5 | 100 30 40 6 5 1 2 5 2.5 | 100 20 50 7.5 5 1 2 5 5 | |
| Estimate rerum natura | 100 100 | 106 100 | 101 100 | 108 100 | 106 100 | 105 100 | 104 100 | 105 100 | 100 100 | 80 100 | |
| Initial adhesion | The rubber-covered rate of peeling force [%] | ||||||||||
| The thermal ageing bonding | The rubber-covered rate of peeling force [%] | 100 60 | 119 85 | 123 85 | 122 100 | 132 100 | 117 95 | 119 90 | 125 95 | 121 85 | 90 75 |
| Durability | 100 | 115 | - | 135 | - | 134 | - | 124 | - | 103 | |
The Table II footnote
RSS#3: natural rubber
Morning sun #60: rising sun カ one ボ Application (strain) system FEF level carbon black
Nipsil AQ: Japanese シ リ カ industry (strain) system silica
S i 69: two [3-(triethoxysilyl) propyl group] tetrasulfides of デ グ Star サ society system
No. 3, zinc white: just with chemistry industry (strain) oxygenerating zinc
SANTOFLEX 6PPD:FLEXSYS system N-phenyl-N '-(1, the 3-dimethylbutyl)-p-phenylenediamine (PPD)
Co (acac)
3: キ シ ダ chemistry (strain) system pentanedione acid cobalt (III)
Alkyl phenol resin: Hitachi changes into industry (strain) ヒ ノ one Le 2501Y
Sulphur: the insoluble sulphur of three new chemical frbre industry systems
The industry utilizability
As described above; in the past; the metal of the iron that caking property independent and rubber lacks or stainless steel etc. and the bonding of rubber-like elastic body are very difficult; the majority that namely allows to bond also has undercapacity; or lack through the time durability problem; according to the present invention; by consisting of rubber-like elastic body by following such rubber composition; can improve the caking property of ring-type metal-back and rubber-like elastic body; increase substantially the durability as support body for run flat; described rubber composition; be (A) with respect to the alkadiene rubber of 100 weight portions, (B) (i) comprises the pentanedione acid cobalt of 0.1～5 weight portion and/or (B) (ii) carbon black; the rubber composition of the sulphur of silica and silane coupler and the specified quantitative that according to circumstances contains.
Claims (6)
1. tire wheel assembly, it is the Runflat tire wheel assembly that has the support body for run flat that is formed by annular metal shell and rubber-like elastic body at the interior blank part of tire/wheel rim, wherein, by constituting above-mentioned rubber-like elastic body by following rubber composition, improved the cohesiveness of annular metal shell and rubber-like elastic body, described rubber composition contains:
(A) the alkadiene rubber of 100 weight portions; And
(B) (i) pentanedione of 0.1～5 weight portion acid cobalt and/or
(B)(ii)
(a) as strengthening the property extending agent, with the carbon black/silica of proportional meter 40～90 weight portions of 10/1～1/2 (weight ratio); With
(b) with respect to above-mentioned silica weight, the silane coupling agent of 1～20 weight %.
2. rubber composition as claimed in claim 1, the composition of above-mentioned rubber composition (B) (ii) further contains: be the sulphur of 1～10 weight portion with respect to 100 weight portion alkadiene rubber (c).
3. tire wheel assembly as claimed in claim 1 or 2, the rubber-like elastic body of above-mentioned support body for run flat is configured between annular metal shell and the wheel rim, becomes the structure that supports the ring-type betal can.
4. as any described tire wheel assembly in the claim 1～3, the material of above-mentioned annular metal shell is iron and steel or corrosion-resistant steel.
5. as any described tire wheel assembly in the claim 1～4, be made as R (inch), rubber-like elastic body/metallo-bond area is made as S (cm at nominal diameter with tire
2) time, it is 4.5cm than S/R
2/ inch or more than it.
6. as any described tire wheel assembly in the claim 1～5, adhesive surface is made of cardinal principle direction of principal axis face and cardinal principle footpath direction face.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003366099A JP2005125996A (en) | 2003-10-27 | 2003-10-27 | Tire wheel assembly |
| JP366099/2003 | 2003-10-27 | ||
| JP041762/2004 | 2004-02-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1874905A true CN1874905A (en) | 2006-12-06 |
| CN100506578C CN100506578C (en) | 2009-07-01 |
Family
ID=34644546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004800317938A Expired - Fee Related CN100506578C (en) | 2003-10-27 | 2004-10-25 | Tire wheel assembly |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2005125996A (en) |
| CN (1) | CN100506578C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103692850A (en) * | 2013-12-17 | 2014-04-02 | 青岛力王工具有限公司 | Novel tire |
| CN110621736A (en) * | 2017-05-19 | 2019-12-27 | 住友化学株式会社 | Rubber composition for direct vulcanization bonding and metal-rubber composite molded article |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4713967B2 (en) * | 2005-07-20 | 2011-06-29 | 株式会社ブリヂストン | Tire assembly method |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2104537A1 (en) * | 1993-06-18 | 1994-12-19 | Paul Harry Sandstrom | Silica reinforced rubber composition |
| JP3369883B2 (en) * | 1996-08-26 | 2003-01-20 | 株式会社ブリヂストン | Rubber composition and pneumatic tire |
| DE19745409C2 (en) * | 1997-10-15 | 2002-06-20 | Continental Ag | Vehicle wheel with an emergency running support body |
-
2003
- 2003-10-27 JP JP2003366099A patent/JP2005125996A/en active Pending
-
2004
- 2004-10-25 CN CNB2004800317938A patent/CN100506578C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103692850A (en) * | 2013-12-17 | 2014-04-02 | 青岛力王工具有限公司 | Novel tire |
| CN103692850B (en) * | 2013-12-17 | 2016-06-01 | 青岛力王工具有限公司 | A kind of tire |
| CN110621736A (en) * | 2017-05-19 | 2019-12-27 | 住友化学株式会社 | Rubber composition for direct vulcanization bonding and metal-rubber composite molded article |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2005125996A (en) | 2005-05-19 |
| CN100506578C (en) | 2009-07-01 |
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