CN101204911A - Foam filled tire - Google Patents
Foam filled tire Download PDFInfo
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- CN101204911A CN101204911A CNA2007101603082A CN200710160308A CN101204911A CN 101204911 A CN101204911 A CN 101204911A CN A2007101603082 A CNA2007101603082 A CN A2007101603082A CN 200710160308 A CN200710160308 A CN 200710160308A CN 101204911 A CN101204911 A CN 101204911A
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Abstract
The present invention relates to a pneumatic tire having its internal cavity filled with a closed cellular rubber contained within the tire cavity by a non-foamed rubber layer.
Description
Invention field
The present invention relates to a kind of air-inflation tyre, its inner chamber is filled with unicellular rubber, and this unicellular rubber quilt not foaming rubber layer is contained in the tire chamber.
Background of invention
The tire that the tire chamber is filled with unicellular rubber is used to various application sometimes, and the time cycle that particularly needs associated vehicle to keep prolongation in service is used for vehicle delivery purposes in good time.It is known forming foam-filled tire with unicellular rubber filling tire, this foam-filled tire be anti-substantially venting and have significant resistance for the destruction that causes by common harm, this common harm for example screw, nail, sharp stone, road hole is recessed etc.Therefore, use this class tire to shorten this class vehicle usually significantly and be put into the time of repairing list and being not useable for effectively serving.
For example, referring to United States Patent(USP) Nos. 3,022,810,3,381,735,3,650,865,3,872,201,4,060,578 and 6,623,580.
Usually making foam-filled tire is by foamable rubber strip (foamed rubber precursor) being inserted the rubber tyre chamber that has been shaped and has vulcanized, then it being installed on the alloy rim to form its vehicle wheel component.Foamed rubber precursor rubber composition contains vulcanizator and heat-activatable foaming agent.When heating during this assembly, the foamed rubber precursor expands simultaneously and vulcanize with the filling tire and closed-cell foam is filled tire and wheel rim and closely cooperates and sliding between on-stream period on the associated vehicle with protected tyre.
For some situation, need make the tire that closed-cell foam is filled with following method, this method can be with foam-filled mounting of tyre to alloy rim after making foam-filled tire.In this case, have the tire of foam precursors rubber layer in the tire chamber and can be installed to the cylindrical metal sleeve pipe, form assembly thus, wherein the metal sleeve surface is coated with thermally-stabilised mold release.With the heating of this assembly so that foam precursors building rubber compound deposits yields expand (foaming) and vulcanize so that comprise the foamed rubber under the pressure and closely cooperate against metal sleeve.Remove metal sleeve then, foamed rubber closely cooperate against it, and foam-filled tire is shipped to the user, and this user can be with foam-filled mounting of tyre on alloy rim, comprises that foamed rubber and alloy rim closely cooperate and is used for vehicle delivery purposes by making.
Having proposed a challenge now and be to protect unicellular rubber to be compromised when this cylindrical metal curing sleeve that closely cooperates is removed and to closely cooperate in the future at it is compromised when being installed on metal (cylindrical shape) wheel rim.
For the present invention, proposed to make the tire chamber hold unicellular rubber by the gum rubber barrier layere that the mode with the foamed rubber precursor rubber composition co-vulcanization in gum rubber barrier layere and the tire chamber is installed in the tire chamber, promptly when the unicellular rubber that expands is filled the tire chamber, the bipeltate precursor that this rubber barrier layere is inflated compresses up hill and dale to closely cooperate against metal-cured sleeve pipe by this way.
In specification sheets of the present invention, adopt weight portion/per 100 parts of elastic bodys of a kind of component of term " phr " expression, unless pointed out other mode.Term " elastic body " and " rubber " are used interchangeably, unless pointed out other mode.Term " curing " and " sulfuration " are used interchangeably, unless pointed out other mode.Term " gum rubber " relates to the rubber composition that does not comprise the continuous core reinforcement, and therefore is not subjected to the inner restriction that core expands that strengthens, as known to those skilled in the art.
Unless pointed out other mode, adopt term " radially " part, be meant direction perpendicular to the predetermined S. A. of tire.Unless pointed out other mode, adopt term " radially inside " or " radially the darkest " part, be meant the vertical inside direction of predetermined S. A. for tire.
General introduction of the present invention and example
According to the present invention, a kind of aerated rubber tyre is provided, its inner chamber is filled with unicellular rubber, and having not, the described tire chamber of foaming rubber layer covers this unicellular rubber and it is contained in interior (described not foaming rubber layer and described unicellular rubber co-vulcanization).
According to the present invention, a kind of tyre cavity be filled with unicellular rubber and have that the described tire chamber of foaming rubber layer not covers this unicellular rubber and it is contained in method for manufacturing air tire may further comprise the steps:
(A) the aerated rubber tyre inner chamber (for example filling described chamber) of filling previous molding with uncured foamable rubber part ground and solidifying with the described foamable rubber part of multilayer ground;
(B) the uncured rubber layer that can not foam is installed on the radially deep surface of described uncured foamable rubber and in described curing tire chamber of partly filling, with first assembly of the tire that forms described curing, uncured foamable rubber and the uncured rubber layer that can not foam;
(C) described first assembly is installed on the columnar curing metal sleeve pipe to seal described curing tire chamber, described foamable rubber and the described rubber layer that can not foam are contained in this tire chamber, it has the space between described cylindrical metal sleeve pipe and the described rubber layer that can not foam, comprise second assembly of described first assembly and described cylindrical metal sleeve pipe with formation;
(D) heating described assembly be combined to high temperature to cause:
(1) make described foamable rubber swelling by forming hole-closing structure, and therefore:
(a) the described rubber layer that can not foam is pressed and is solidificated on the rubber tyre inner cavity surface of described curing;
(b) the described rubber layer that can not foam is pressed in the described space between described cylindrical metal wheel rim and the described rubber layer that can not foam and is pressed against described cylindrical shape and solidify on the surface of wheel rim; And
(2) described foamable rubber and the described rubber layer co-vulcanization that can not foam combine with the described expansion phase of described foamable rubber.
In fact, the described inside face in described tire chamber contains bonding coat to help described unicellular rubber and described can not foaming layer being adhered on the side in described tire chamber.
Further according to the present invention, described curing sleeve is removed forming the cure tyre that its inner chamber is filled with described unicellular rubber from described second assembly, and the rubber layer that can not foam by described curing is contained in described unicellular rubber in the described tire.
So, in having provided a kind of tire, its inner chamber is filled with unicellular rubber and it has enclosed the not rubber layer of foaming.
In a kind of embodiment of the present invention, the surface of described metal-cured sleeve pipe is contained the thermally-stabilised mold release of coating on it and can be removed from described tire to help that described cylindrical shape is solidified wheel rim.
Further according to the present invention, by its inner chamber is filled with described mounting of tyre that unicellular rubber and its enclosed foaming rubber layer not to the round metal tubular wheel rim forming vehicle wheel component, thereby a kind of vehicle wheel component is provided.
According to the present invention, provide a kind of vehicle wheel component in addition, it is made of following:
(A) cylindrical metal tyre rim, and
(B) be installed to the one piece tyre assembly of described metal tyre rim, wherein said vehicle wheel component is made of the curing rubber tire, this tyre cavity is filled with the unicellular rubber of curing and the not rubber layer of foaming that this tire has the curing that is pressed against on the described cylindrical metal rim surface, this rubber layer that does not foam is positioned at and solidifies on the radially deep surface of described unicellular rubber, thus described unicellular rubber is enclosed and is contained in the described tire chamber.
In a kind of embodiment of the present invention, the described foamable rubber layer that is positioned at described tire chamber is made by rubber composition, and this rubber composition is made of following, for example by following:
(A) at least a rubber based on diene, it is made of following:
(1) cis-1, the 4-polyisoprene rubber, or
(2) the about cis-1 of 25-95phr, the 4-polyisoprene rubber and approximately 5-75phr at least another based on the rubber of diene;
(B) the approximately heat-activatable organic peroxide of 3-5phr (produce free radical, for example decompose to produce the free radical peroxide) and the approximately sulphur of 0.1-0.5phr;
(C) heat-activatable foaming agent (produce gas, for example decompose produce gas) by foaming agent;
In a kind of embodiment of the present invention, the described uncured rubber layer that can not foam can be made of similar rubber composition, unless it does not contain (not comprising) foaming agent, and therefore it is made of following:
(A) cis-1, the 4-polyisoprene rubber, or
(B) cis-1 of about 25-95phr, at least a other rubber of 4-polyisoprene rubber and about 5-75phr based on diene;
In a kind of embodiments of the present invention, the about 75-90% (considering the imperfect assembling of foamable rubber strip possibility in the tire chamber) that is preced with the distance of the imaginary line between the opening of tire chamber from the tire chamber is for example filled by the combination of the rubber layer that is filled with described foamable rubber approximately 70-90% and can not foams in the described chamber of described curing rubber tire.
Provide the following drawings further to understand and casehistory the present invention.
Brief description of drawings
Accompanying drawing (Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5) comprises that tire made tire by the cutaway view after partly cutting with casehistory, and relevant wheel assembly, wherein said tire is made of air-inflation tyre, its inner chamber is filled with unicellular rubber, non-foam rubber layer be positioned at described tire chamber and on the radially deep surface of described unicellular rubber described unicellular rubber is held and encloses described tire chamber.
Accompanying drawing
In the accompanying drawings, provide air-inflation tyre (1) with tire chamber (2).
In Fig. 1, place to solidify in the tire chamber (2) by uncured foamable rubber strip (4) to form first assembly (A), adhesives has been applied to each layer that is used to strengthen rubber strip (4) on the surface of tire chamber (2) and has been resisted against binding power on the surface, tire chamber (5) partly to fill tire chamber (2) with a plurality of annulars.
The pantostrat of rubber strip (4) is placed in the tire chamber the uncured foamable rubber plug-in part of stack-mounted that constitutes with a plurality of rubber strips (4) that form by the planar annular form, and it is coaxial and is parallel to the planar annular of tire protector (6) usually.The width of rubber strip (4) approaches the width of their residing tire chamber (2) parts in a way.
Thickness is equal substantially usually for the pantostrat of rubber strip (4).
On the other hand, uncured foamable continuous rubber strip (4) spirality is arranged in the tire chamber (2).
On the other hand, for tire (1), can place in the tire chamber (2) with coordination with rubber strip (4) or to small part rubber strip (4) than broad.
Be used for the amount of foamable rubber composition of rubber strip (4) and foaming agents content thereof and to the desired desirable load bearing capacity of tire has something to do a little.
The uncured rubber layer that can not foam (7) is positioned at tire chamber (2), on the inner radial surface (8) of radially the darkest foamable rubber layer (4B), its edge is located against the described surface, chamber (5) that has been coated with adhesives.
In figure (2), second assembly (B) is that this will form: go up to seal tire chamber (2) and to form second assembly (B) thus by first assembly (A) being installed to the metal-cured sleeve pipe of rigid cylinder shape (9), on sleeve pipe (9), applied thermally-stabilised release coating, first assembly (A) is made of the tire (1) of partly filling, the uncured rubber bar (7) that contains foamable uncured rubber bar (4) and can not foam in its tire chamber (2).Second assembly (B) is included in curing sleeve (9) and partly fills space (10) between the uncured rubber layer that can not foam (7) in tire chamber (2).
Second assembly (B) is placed the autoclave (not shown) and is heated to the interior temperature of for example about 100 ℃ of-150 ℃ of scopes so that the foaming agent activation from room temperature (for example about 23 ℃) therein, beginning also continues it and decomposes and the formation of associated gas because temperature build-up and
(A) make described foamable rubber swelling and curing and formation closed pore pressurized foaming rubber, simultaneously
(B) the described rubber layer that can not foam is pressed against the side (5) of tire chamber (2) and radially inwardly so that the rubber layer that can not foam solidify and be pressed against on the surface (12) of cylindrical metal curing sleeve (9).
In fact, as shown in Figure 1, the width (13) of the rubber layer that can not foam (7) is wideer so that this rubber layer (7) is radially outward pressed by the expanded foam rubber insert (11) of wedge shape pattern in tire chamber (2) than the width of the width (13A) of tire chamber (2), described rubber layer (7) is pressed against fully on the side (5) of tire chamber (2).
In Fig. 3, show second assembly (B), its tire chamber (2) is filled with to bind on the curing unicellular rubber plug-in unit (11) of the expansion on the side, tire chamber (2) (5) and the surface (12) that is resisted against cylindrical metal curing sleeve (9) by the unicellular rubber plug-in unit (11) that expands and goes up and the combination of the rubber layer that can not foam (7) of the curing of pressurized under the pressure that produces, co-vulcanization and being adhered to thus on the surface of unicellular rubber plug-in unit (7) with it, the edge of unicellular rubber plug-in unit (7) are adhered on the tire chamber (2) (being coated with adhesives) side (5).
In Fig. 4, shown in tire (1) removed from cylindrical metal curing sleeve (9), and shown in the rubber layer that can not foam that solidifies be convex swelling state (7A), this is that the big pressure of the unicellular rubber plug-in unit (11) of the expansion of surrounding owing to the combination of tire chamber (2) and curing rubber layer (7A) causes.
In Fig. 5, shown in tire (1) be installed in cylindrical shape wheel rim (14) and go up to form vehicle wheel component (C), wherein have the rubber layer that can not foam (7) that is pressed against the curing on cylindrical shape wheel rim (14) surface (15), and the unicellular rubber plug-in unit (11) of the expansion that is associated is on the not foaming rubber layer (7) that compressive state is resisted against curing.
An importance of the present invention is to be contained in the tire and the therefore growth of affined closed-cell foam material plug-in unit, this is because the rubber layer that can not foam that inserted is positioned at the tire side and is resisted against on the tire side, and at this unicellular rubber plug-in unit radially co-vulcanization above the deep surface and with it.
Another importance of the present invention is that protection (and improve outward appearance) closed-cell foam material plug-in unit avoids infringement to cause closed-cell foam material loss (being positioned at the rubber layer protection that the protectiveness on the inner radial surface of closed pore plug-in unit can not foam) and the loading of tire capacity loss that is associated.
Therefore, here also consider to provide a kind of tire new, original creation, contain the rubber layer osed top porous foam rubber that can not be foamed in its tire chamber, because the practice of the past of the manufacture method of the vehicle wheel component that constitutes with the tire product that contains unicellular rubber and by this tire and this tire has marked difference.
Provide following examples to be used for further understanding the present invention, it is not intended to limit the present invention.Umber and percentum are by weight, unless point out other mode.
Embodiment 1
The building rubber compound matter sample (sample A) of foaming agent has been proposed to have for the foamable rubber composition of vulcanized rubber tire plug-in unit, and proposed not have the building rubber compound matter sample (sample B) of foaming agent, and be illustrational in the accompanying drawings method for the rubber layer that can not foam.
Following table 1 illustrates rubber sample A and sample B, and umber is by weight, unless point out other mode.
Table 1
Umber
Raw material 1
Sample A
Sample B
Unproductive blend step(not having foaming agent)
Cis-1, the 4-polyisoprene rubber
1100 100
Carbon black (N660)
220 30
The middle rubber processing oil 25 15 of imitating
Zinc oxide 55
Sulphur (0.2-0.5 part, variable)
Banbury mixer, open roll refining, blend step
Organic peroxide
3(6-8 part, variable)
Foaming agent
45 (variable) 0
1Synthetic cis-1, the 4-polyisoprene rubber
2It is N660 that rubber strengthens carbon black, the ASTM order
3By 1,1 two (t-butylperoxies) 3,3, the compound of the organic peroxide of 40 percent by weight that the 5-trimethyl-cyclohexane constitutes and the ethylene/propylene rubber of 60 percent by weight (so 40% activity) be Link-Cup TMCH 40MB from Geo Specialty Chemical Company
TM4Foaming agent is the compound (weight ratio 75/25) of benzene sulfonyl hydrazide and oil, as the compound that table 1 write down.
Example II
Make the air-inflation tyre of exemplary illustrated by the method that is similar to specification sheets and accompanying drawing, its model is 12.00-20 28PR UMS-3A and 35x15-15 32 PR XTRWL.
Be used for casehistory purpose of the present invention though shown some representational embodiment and details, but it will be apparent to one skilled in the art that under the situation that does not deviate from the spirit or scope of the present invention, can be to wherein carrying out various variations and remodeling.
Claims (10)
1. an aerated rubber tyre is characterized in that its inner chamber is filled with unicellular rubber, and the described tire chamber that this unicellular rubber is had a foaming rubber layer not coats and holds within it.
2. the manufacture method of an aerated rubber tyre is characterized in that its inner chamber is filled with unicellular rubber, and the described tire chamber that this unicellular rubber is had a foaming rubber layer not coats and holds within it, and this method comprises:
(A) with uncured foamable rubber part the rubber tire inner chamber (for example with the described tire of the described foamable rubber part of multilayer ground filling chamber) of filling molding in advance and solidifying;
(B) the uncured rubber layer that can not foam is installed on the radially deep surface of described uncured foamable rubber and in the tire chamber of described curing of partly filling with first assembly of the tire that forms described curing, uncured foamable rubber and the uncured rubber layer that can not foam;
(C) described first assembly is installed on the cylindrical shape curing metal sleeve pipe to seal the tire chamber of described curing, this tire chamber accommodates described foamable rubber and the described rubber layer that can not foam, it has the space between described cylindrical metal wheel rim and the described rubber layer that can not foam, form its second assembly thus;
(D) heating described two assemblies be combined to high temperature to cause:
(1) make described foamable rubber swelling by forming hole-closing structure, and therefore:
(a) the described rubber layer that can not foam is pressed and is solidificated on the inside face in rubber tyre chamber of described curing;
(b) the described rubber layer that can not foam is pressed in the described space between described cylindrical metal curing sleeve and the described rubber layer that can not foam and is pressed against on the surface of described cylindrical shape curing sleeve; And
(2) described foamable rubber and the described rubber layer co-vulcanization that can not foam combine with the expansion phase of described foamable rubber.
3. a tire is characterized in that this tire is by the described method manufacturing of claim 2.
4. the described method of claim 2, it is characterized in that described method also comprises removes tire form to solidify with described curing wheel rim from described second assembly, this tyre cavity is filled with described unicellular rubber, and described unicellular rubber is contained in the described tire by described curing rubber layer.
5. a tire is characterized in that this tire is by the described method manufacturing of claim 4.
6. a vehicle wheel component is characterized in that it is to be made of the described tire of claim 1 that is installed on the cylindrical metal wheel rim.
7. a vehicle wheel component is characterized in that it is to be made of the described tire of claim 3 that is installed on the cylindrical metal wheel rim.
8. a vehicle wheel component is characterized in that it is to be made of the described tire of claim 5 that is installed on the cylindrical metal wheel rim.
9. vehicle wheel component is characterized in that it is made of following:
(A) cylindrical metal wheel rim, and
(B) be installed to one piece tyre assembly on it, wherein said tyre assembly is made of the tire that solidifies, this tyre cavity is filled with the unicellular rubber of curing and the not rubber layer of foaming that this tire has the curing that is pressed against on the described cylindrical metal rim surface, this rubber layer that does not foam is positioned at and solidifies on the radially deep surface of described unicellular rubber, thus described unicellular rubber is enclosed in the described tire chamber.
10. the described method of claim 2 is characterized in that described foamable rubber layer is made up of a kind of rubber composition, and this rubber composition is made of following:
(A) at least a rubber based on diene, it is made of following:
(1) cis-1, the 4-polyisoprene rubber, or
(2) the about cis-1 of 25-100phr, the 4-polyisoprene rubber and approximately 0-75phr at least another based on the rubber of diene;
(B) heat-activatable organic peroxide, and
(C) heat-activatable foaming agent.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US87579106P | 2006-12-19 | 2006-12-19 | |
| US60/875791 | 2006-12-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101204911A true CN101204911A (en) | 2008-06-25 |
| CN101204911B CN101204911B (en) | 2010-08-11 |
Family
ID=39565464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101603082A Expired - Fee Related CN101204911B (en) | 2006-12-19 | 2007-12-19 | Foam filled tire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101204911B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104893125A (en) * | 2015-06-28 | 2015-09-09 | 中国化工集团曙光橡胶工业研究设计院有限公司 | Sponge rubber formula with good heat resistance and air tightness |
| GB2526632A (en) * | 2014-06-24 | 2015-12-02 | Gecko Rubber Ltd | Improvements in and relating to expanded rubber articles |
| CN105415728A (en) * | 2014-09-17 | 2016-03-23 | 东莞市珅辉橡胶制品有限公司 | Manufacturing method for scooter wheel |
| CN107284138A (en) * | 2017-08-10 | 2017-10-24 | 惠州市瑞博尔科技有限公司 | The non-inflatable tyre of Tire ＆ Tube one |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5411582B2 (en) * | 1972-12-30 | 1979-05-16 | ||
| US4722377A (en) * | 1984-06-11 | 1988-02-02 | The Goodyear Tire & Rubber Company | Tire safety support system |
| CN1061610C (en) * | 1995-06-07 | 2001-02-07 | 黄坤炳 | Non-inflatable safety tyre and making method thereof |
| US6623580B2 (en) * | 2001-05-10 | 2003-09-23 | The Goodyear Tire & Rubber Company | Method of curing foam inflated tires and an improved rim |
| CN2621957Y (en) * | 2003-06-02 | 2004-06-30 | 刘可心 | Semi-solid anti-pricking tyre |
-
2007
- 2007-12-19 CN CN2007101603082A patent/CN101204911B/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2526632A (en) * | 2014-06-24 | 2015-12-02 | Gecko Rubber Ltd | Improvements in and relating to expanded rubber articles |
| GB2526632B (en) * | 2014-06-24 | 2016-04-13 | Gecko Rubber Ltd | Improvements in and relating to expanded rubber articles |
| US10118443B2 (en) | 2014-06-24 | 2018-11-06 | Gecko Rubber Limited | Expanded rubber articles |
| US10486469B2 (en) | 2014-06-24 | 2019-11-26 | Gecko Rubber Limited | Expanded rubber articles |
| CN105415728A (en) * | 2014-09-17 | 2016-03-23 | 东莞市珅辉橡胶制品有限公司 | Manufacturing method for scooter wheel |
| CN105415728B (en) * | 2014-09-17 | 2018-02-13 | 东莞市珅辉橡胶制品有限公司 | A kind of preparation method of scooter wheel |
| CN104893125A (en) * | 2015-06-28 | 2015-09-09 | 中国化工集团曙光橡胶工业研究设计院有限公司 | Sponge rubber formula with good heat resistance and air tightness |
| CN107284138A (en) * | 2017-08-10 | 2017-10-24 | 惠州市瑞博尔科技有限公司 | The non-inflatable tyre of Tire ＆ Tube one |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101204911B (en) | 2010-08-11 |
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