CN205273056U - Polyurethane with filling tire - Google Patents
Polyurethane with filling tire Download PDFInfo
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- CN205273056U CN205273056U CN201620026339.3U CN201620026339U CN205273056U CN 205273056 U CN205273056 U CN 205273056U CN 201620026339 U CN201620026339 U CN 201620026339U CN 205273056 U CN205273056 U CN 205273056U
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- cover tire
- polyurethane
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Abstract
The utility model discloses a polyurethane with filling tire, including cover tire, cladding in the inside inner tube of a tyre of cover tire, the shao shi hardness of cover tire is greater than the shao shi hardness of the inner tube of a tyre, the tread of the inner tube of a tyre runs through about being equipped with a week, with perpendicular, the cross section of tire travel direction be the semicircular recess, be provided with on the interior tread of cover tire that quantity is the same, length equal, the cross section is semicircular equally and the bead that the groove phase corresponds, the bead of cover tire is arranged inner tube of a tyre recess in and is bonded together. And disclose a polyurethane with filling tire's preparation method, with twice injection shaping of the inner tube of a tyre and cover tire adoption liquid, the utility model discloses the polyurethane with filling tire who makes has high the resilience, resistant tearing, and advantages such as anti pinning, especially high resilience can be excellent, are that rubber is incomparable, and the wholeness can be close pneumatic tire's resilience ability.
Description
Technical field
The utility model belongs to tyre technology, is specifically related to a kind of polyurethane sandwich tire and its preparation method.
Background technology
Relatively early, from the seventies in last century, external large-scale rubber tyre enterprise, is finding always and is developing the substitute products of rubber tyre, have the polyurethane elastomer of the title of fluid rubber, is unique selection in external pu tire research work starting. At present mainly three kinds of process exploitation researchs.
1. polyurethane elastomer solid tyre
The fraternal company of U.S. David utilizes polyurethane elastomer to develop the novel Durotane tire being directly contained on Electricmotor car wheel, demonstrates good wear resisting property when transporting goods under severe conditions.
Deng Lup Inc of Britain exploitation polyurethane solid tyre is to be used for the big especially goods of shipping mass.
Gu special, focus is placed on polyurethane solid tyre, by pu tire material adhesive on wheel rim, wheel rim is directly installed on axletree and uses. The composition and engineering of this pu tire has obtained United States Patent (USP) all. The novel blue PU tire that Mo2narch company releases has rolling resistance and travels the low feature of temperature rise, can be used for fork truck, workshop section's bogie and such as food-processing and sale, weaving, papermaking, brewage and the industrial flat-bed trailer such as smelting, tire consumption can be made to reduce half, it is subject to user's favorable comment.
2. the plug-in polyurethane elastomer of rubber filling gas tyre
Gu special research work is not only confined to full PU tire, and relate to urethane/rubber composite tyre, and for the difference of urethane and cross-linked rubber polarity, both adhesion techniques of primary study and method, surface modification is carried out by repeatedly applying the coating for rubber cross-linked rubbers such as methyl methacrylate 2NR graft copolymer, resol on vulcanization of rubber glue surface, acquisition can meet the interfacial adhesion intensity of harsh working conditions, makes the application on rubber tyre of polyurethane tread, carcass, sidewall Inlaid strip become possibility.
3. filling polyurethane elastomer in rubber pneumatic tire
Phoenix company of Germany research and development urethane filling rubber air filled tyre. Arnco company of Canada have developed high resilience polyurethane material for filling inflated rubber tire. Flexible polyurethane material is used as thermostability self-styled formula Runflat tire inner liner tire, by performance such as the super softness of polyurethane elastomer, snappiness to ultimate attainment.
The seventies in last century was once done the research of some pu tires by China, the systematic study of cast polyurethane pneumatic tyre is started the nineties in last century, once expand comprehensive research for cast tire starting material (polyvalent alcohol and solidifying agent etc.), tire construction, reaction injection molding machine, tire-mold and complete processing, and produce cast polyurethane pneumatic tyre finished product in 1998. Although this project have passed national acceptance in 1999, but still there is the technical problems such as endurance quality difference in product, needs to be solved further, never put on market and measured data.
The urethanes composite tyre that the big prestige tire plant in Qiqihar is succeeded in developing, it is taking new, old tire carcass as matrix, the polyurethane tread that the outer certain thickness high abrasion of hanging and pouring last layer, low distortion, anti-thorn are pricked is made, and its work-ing life is 3��5 times of General Purpose Rubber tire.
Guangzhou Chinese workers hundred river science and technology limited-liability company is developing the plug-in rubber NEW TYPE OF COMPOSITE green tire of urethane, has certain application prospect, but the tire produced at present can not give play to advantage and the performance of polyurethane elastomer comprehensively.
The performance that the rubber such as wear resisting property is good though polyurethane elastomer has, load height, anti tear are incomparable, but polyurethane elastomer itself exist in heat-dissipating big, thermotolerance is not good enough, fatigue performance and problem, the therefore exploitation stagnation of high speed rank pu tire such as flexible resistance is not good enough under high dynamic load. And the research and development of pu tire are costly, the market cultivation phase is relatively long, adds the reason of the aspects such as material cost so that some company is forced to abandon the effort of this respect.
Practical novel content
For the problems referred to above existed in currently available technology, one of the purpose of this utility model is to provide a kind of polyurethane sandwich tire with the advantage such as high resilience, nail bundle tear-resistant, anti-.
Another object of the present utility model is to provide the preparation method of a kind of polyurethane sandwich tire, soft in hard outside obtained tire, under the prerequisite with high-wearing feature, has higher elasticity, overcomes the problem of inside and outside consistent solid tyre poor flexibility.
The technical solution of the utility model is as follows:
A kind of polyurethane sandwich tire, comprise cover tire, it be coated on the inner tube of a tyre of cover tire inside, the shore hardness of described cover tire is greater than the shore hardness of the described inner tube of a tyre, the outer tyre surface of the described inner tube of a tyre be provided with within about one week, run through vertical with tire running direction, cross section is semicircle groove, being provided with the fin corresponding with described groove that quantity is identical, length is equal, cross section is similarly semicircle in the inner tread of cover tire, the fin of described cover tire is placed in inner tube of a tyre groove and bonds together. Namely adopting wave semicircle bonding, main effect is; Increase the contact area of the inner tube of a tyre and cover tire, strengthening bonding force, the Impact direction of the dispersion inner tube of a tyre, when cover tire contacts with ground, cover tire is conducted to the reactive force vertically upward of the inner tube of a tyre, it is distributed to different directions, reduce reactive force vertically upward to the damage of the inner tube of a tyre.
Preferably, the two sides, sidewall of described cover tire all arranges one week damping, buffering hole vertical with travel direction, and described damping, buffering hole is circular, and the distribution in " V " font along sidewall of described damping, buffering hole. Main effect is; There is very high anchorage force and tensile resistence because of high hardness polyurethane, the circular damping, buffering hole of cover tire sidewall design, it is exactly in order on the basis keeping sidewall height anchorage force and drawing force, increase the elasticity of compression of tire, when tire bears a heavy burden running, produce to compress instantaneously, the effect of moment resilience.
Preferably, described inner tube of a tyre sidewall is provided with annular recesses, bonding with the annular protrusion in the middle of cover tire sidewall. Further, described cover tire sidewall is provided with inner through the inner tube of a tyre and parallel with described fin right cylinder, and described right cylinder and cover tire two side are connected as a single entity. When the inner tube of a tyre extrudes by power, having reactive force to expand to the sidewall of cover tire, the annular recesses on inner tube of a tyre sidewall, exactly in order to make the power dispersion acting on cover tire, the right cylinder in the inner tube of a tyre, playing the effect that stretching is convex outside pining down cover tire sidewall further. And the material of right cylinder is identical with cover tire material.
Preferably, the inner periphery of cover tire is provided with steel loop near rim, the cross-sectional shape of steel loop is circular, and then strengthen closely cooperating of polyurethane sandwich tire and tyre rim, prevent tire lateral slip, prevent from wearing and tearing in tire used process and between steel ring and gap occurring, it is to increase the duration of service of tire.
The invention also discloses the preparation method of a kind of polyurethane sandwich tire, adopt liquid twice injection shaping, comprise the assembling inner tube mold �� cast soft estrodur performed polymer �� extruded �� demoulding �� sulfuration �� cleaning �� brushing sizing agent �� put into cover tire mould �� install the steel loop �� cast high rigidity estrodur performed polymer �� extruded �� demoulding �� sulfuration �� finished product additional, specifically comprise the steps:
(1) inner tube of a tyre is prepared: first assemble inner tube mold, pouring liquid starting material A, through extruded at 100 DEG C, the demoulding after 1 hour, and then under 100 DEG C of environment, carry out sulfuration 12 hours and become;
(2) cover tire is prepared: inner tube of a tyre washes of absolute alcohol step (1) prepared, dry, evenly put into cover tire mould after brushing one layer of adhesive for polyurethane, and the circumference of loose tool tool installs one week steel loop additional outside, pouring liquid starting material B again, through extruded, the demoulding after 1 hour, and then carry out sulfuration 12 hours under 100 DEG C of environment, obtain finished product.
The concrete preparation method of described liquid starting material A is: be the ratio mixing of 95:5:0.1 according to mass ratio by MDI base polyester polyol performed polymer, chain expansion of succinic acid agent (BD chainextender) and acetic acid, then, under temperature is 65��70 DEG C of parts, react 40��60 minutes.
The concrete preparation method of described liquid starting material B is: is the ratio mixing of 88:12:0.1 according to mass ratio by MDI base polyester polyol performed polymer, E-300 chainextender and acetic acid, then reacts 40��60 minutes under temperature is 100 DEG C of conditions.
The shore hardness of described inner tube of a tyre material is A50, and the shore hardness of described cover tire material is A85. Being specially cover tire and use shore hardness A85 degree high hardness polyurethane material, main effect is: wear-resisting, anti tear, antifatigue, ageing-resistant etc., above-mentioned every index is 5��10 times of rubber tyre. The inner tube of a tyre uses shore hardness A50 degree soft high-rebound polyurethane material, and main effect is: high resilience, tear-resistant, and anti-nail bundle etc., particularly high resilience can be excellent, are that rubber is incomparable, and overall performance is close to the rebound performance of pneumatic tyre.
The beneficial effects of the utility model are:
The polyurethane sandwich tire that the utility model is obtained, has high resilience, tear-resistant, and the advantages such as anti-nail bundle, particularly high resilience can be excellent, are that rubber is incomparable, and overall performance is close to the rebound performance of pneumatic tyre.
The utility model tire has a built-in snappiness carcass, and carcass has high rigidity, strong wear-resisting tyre surface, and tire flower is ripe rubber tyre tire flower design, and carcass is arranged on metallic wheel or wheel rim under pressure, is non-pneumatic wheel tire. Non-pneumatic wheel tire has many advantages, because this kind of tire is solid, not sealing or pressurized air, thus the bundle tire of pneumatic tyre is not had to run gas problem, also can not produce to produce sponge problem because of a large amount of heat-dissipating, in addition, can not there is the badly damaged system without the need to repairing in non-inflation pu tire or one. Non-pneumatic wheel tire can also reasonably use material, reduces sizing material parts and carries section and amass, reduces costs, be only single subassembly because of it simultaneously, can remove the assembly working of each parts from.
In addition, the bonding surface that contacts to earth of the utility model cover tire and the inner tube of a tyre, adopts wave semicircle bonding, and main effect is; Increase the contact area of the inner tube of a tyre and cover tire, strengthening bonding force, the Impact direction of the dispersion inner tube of a tyre, when cover tire contacts with ground, cover tire is conducted to the reactive force vertically upward of the inner tube of a tyre, it is distributed to different directions, reduce reactive force vertically upward to the damage of the inner tube of a tyre.
This cover tire sidewall is provided with inner through the inner tube of a tyre and parallel with described fin right cylinder, and described right cylinder and cover tire two side are connected as a single entity. When power extruding received by the inner tube of a tyre, having reactive force to expand to the sidewall of cover tire, the depression groove on inner tube of a tyre sidewall, exactly in order to make the power dispersion acting on cover tire, the right cylinder in the inner tube of a tyre, playing the effect that stretching is convex outside pining down cover tire sidewall further.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of sandwich tire of the utility model;
Fig. 2 is the structural representation of the sandwich Outer Tyre of the utility model;
Fig. 3 is the structural representation of the sandwich tube of the utility model;
Fig. 4 is the Structure of cross section figure of the sandwich tire of the utility model;
Fig. 5 is the manufacture craft schema of the sandwich tire of the utility model.
Wherein, 1-cover tire, the 2-inner tube of a tyre, 101-fin, 102-annular protrusion, 103-damping, buffering hole, 104-steel loop, 105-right cylinder, 201-groove, 202-annular recesses.
Embodiment
Specific embodiment of the utility model is described below with reference to accompanying drawings more in detail. Although accompanying drawing shows specific embodiment of the utility model, it should be understood, however, that the embodiment that can realize the utility model in a variety of manners and should do not set forth here limits. On the contrary, it is provided that these embodiments are to can more thoroughly understand the utility model, and can pass on complete for scope of the present utility model to the technician of this area.
" comprising " or " comprising " as mentioned in the middle of specification sheets and claim in the whole text is an open language, therefore should be construed to " comprise but be not limited to ". Specification sheets subsequent descriptions is for implementing better embodiment of the present utility model, and right described description is for the purpose of the general principle of specification sheets, it does not mean to limit scope of the present utility model. Protection domain of the present utility model is when being as the criterion depending on the claims person of being defined.
Embodiment 1
A kind of polyurethane sandwich tire, as depicted in figs. 1 and 2, comprise cover tire 1, it be coated on the inner tube of a tyre 2 of cover tire inside, the shore hardness of described cover tire 1 is greater than the shore hardness of the described inner tube of a tyre 2, the outer tyre surface of the described inner tube of a tyre 2 be provided with within about one week, run through vertical with tire running direction, cross section is semicircle groove 201, being provided with the fin 101 corresponding with described groove 201 that quantity is identical, length is equal, cross section is similarly semicircle in the inner tread of cover tire, the fin 101 of described cover tire is placed in inner tube of a tyre groove 201 and bonds together. Namely adopt wave semicircle bonding, to increase the bond area of the inner tube of a tyre and cover tire, strengthening bonding force, the Impact direction of the dispersion inner tube of a tyre, when cover tire contacts with ground, cover tire is conducted to the reactive force vertically upward of the inner tube of a tyre, it is distributed to different directions, reduce reactive force vertically upward to the damage of the inner tube of a tyre.
Embodiment 2
A kind of polyurethane sandwich tire, as depicted in figs. 1 and 2, comprise cover tire 1, it be coated on the inner tube of a tyre 2 of cover tire inside, the shore hardness of described cover tire 1 is greater than the shore hardness of the described inner tube of a tyre 2, the outer tyre surface of the described inner tube of a tyre 2 be provided with within about one week, run through vertical with tire running direction, cross section is semicircle groove 201, being provided with the fin 101 corresponding with described groove 201 that quantity is identical, length is equal, cross section is similarly semicircle in the inner tread of cover tire, the fin of described cover tire is placed in inner tube of a tyre groove and bonds together.
Further, the two sides, sidewall of described cover tire all arranges one week damping, buffering hole 103 vertical with travel direction, and described damping, buffering hole 103 is circular, and the distribution in " V " font along sidewall of described damping, buffering hole 103. Main effect is; Have very high anchorage force and tensile resistence because of high hardness polyurethane, cover tire sidewall arranges circular damping, buffering hole, is exactly in order on the basis keeping sidewall height anchorage force and drawing force, increase the elasticity of compression of tire, when tire bears a heavy burden running, produce to compress instantaneously, the effect of moment resilience.
Embodiment 3
A kind of polyurethane sandwich tire, as shown in figures 1-4, comprise cover tire 1, it be coated on the inner tube of a tyre 2 of cover tire inside, the shore hardness of described cover tire 1 is greater than the shore hardness of the described inner tube of a tyre 2, the outer tyre surface of the described inner tube of a tyre 2 be provided with within about one week, run through vertical with tire running direction, cross section is semicircle groove 201, being provided with the fin 101 corresponding with described groove 201 that quantity is identical, length is equal, cross section is similarly semicircle in the inner tread of cover tire, the fin of described cover tire is placed in inner tube of a tyre groove and bonds together.
Further, the two sides, sidewall of described cover tire all arranges one week damping, buffering hole 103 vertical with travel direction, and described damping, buffering hole 103 is circular, and the distribution in " V " font along sidewall of described damping, buffering hole 103.
Further, described inner tube of a tyre sidewall is provided with annular recesses 202, bonding with the annular protrusion 102 in the middle of cover tire sidewall, simultaneously, further, described cover tire 1 sidewall is provided with inner through the inner tube of a tyre 2 and parallel with described fin 101 right cylinder 105, and described right cylinder 105 is connected as a single entity with cover tire two side. When the inner tube of a tyre extrudes by power, having reactive force to expand to the sidewall of cover tire, the annular recesses on inner tube of a tyre sidewall, exactly in order to make the power dispersion acting on cover tire, the right cylinder in the inner tube of a tyre, playing the effect that stretching is convex outside pining down cover tire sidewall further.
Embodiment 4
A kind of polyurethane sandwich tire, as shown in figures 1-4, comprise cover tire 1, it be coated on the inner tube of a tyre 2 of cover tire inside, the shore hardness of described cover tire 1 is greater than the shore hardness of the described inner tube of a tyre 2, the outer tyre surface of the described inner tube of a tyre 2 be provided with within about one week, run through vertical with tire running direction, cross section is semicircle groove 201, being provided with the fin 101 corresponding with described groove 201 that quantity is identical, length is equal, cross section is similarly semicircle in the inner tread of cover tire, the fin of described cover tire is placed in inner tube of a tyre groove and bonds together.
Further, the two sides, sidewall of described cover tire all arranges one week damping, buffering hole 103 vertical with travel direction, and described damping, buffering hole 103 is circular, and the distribution in " V " font along sidewall of described damping, buffering hole 103.
Further, described inner tube of a tyre sidewall is provided with annular recesses 202, bonding with the annular protrusion 102 in the middle of cover tire sidewall, simultaneously, further, described cover tire 1 sidewall is provided with inner through the inner tube of a tyre 2 and parallel with described fin 101 right cylinder 105, and described right cylinder 105 is connected as a single entity with cover tire two side.
Further, the inner periphery of cover tire is provided with steel loop 104 near rim, the cross-sectional shape of steel loop 104 is circular, and then strengthen closely cooperating of polyurethane sandwich tire and tyre rim, prevent tire lateral slip, prevent from wearing and tearing in tire used process and between steel ring and gap occurring, it is to increase the work-ing life of tire.
The polyurethane sandwich tire that the utility model is obtained, has high resilience, tear-resistant, and the advantages such as anti-nail bundle, particularly high resilience can be excellent, are that rubber is incomparable, and overall performance is close to the rebound performance of pneumatic tyre.
Embodiment 5
The preparation method of a kind of polyurethane sandwich tire, its process flow sheet is shown in Fig. 5, comprise the assembling inner tube mold �� cast soft estrodur performed polymer �� extruded �� demoulding �� sulfuration �� cleaning �� brushing sizing agent �� put into cover tire mould �� install the steel loop �� cast high rigidity estrodur performed polymer �� extruded �� demoulding �� sulfuration �� finished product additional, specifically comprise the steps:
(1) inner tube of a tyre is prepared: first assemble inner tube mold, pouring liquid starting material A, through extruded at 100 DEG C, the demoulding after 1 hour, and then under 100 DEG C of environment, carry out sulfuration 12 hours and become;
(2) cover tire is prepared: inner tube of a tyre washes of absolute alcohol step (1) prepared, dry, evenly put into cover tire mould after brushing one layer of adhesive for polyurethane, and the circumference of loose tool tool installs one week steel loop additional outside, pouring liquid starting material B again, through extruded, the demoulding after 1 hour, and then carry out sulfuration 12 hours under 100 DEG C of environment, obtain finished product.
The concrete preparation method of described liquid starting material A is: is the ratio mixing of 95:5:0.1 according to mass ratio by MDI base polyester polyol performed polymer, chain expansion of succinic acid agent and acetic acid, then under temperature is 65��70 DEG C of parts, reacts 40��60 minutes.
The concrete preparation method of described liquid starting material B is: is the ratio mixing of 88:12:0.1 according to mass ratio by MDI base polyester polyol performed polymer, E-300 chainextender and acetic acid, then reacts 40��60 minutes under temperature is 100 DEG C of conditions.
The shore hardness of described inner tube of a tyre material is A50, and the shore hardness of described cover tire material is A85. Being specially cover tire and use shore hardness A85 degree high hardness polyurethane material, main effect is: wear-resisting, anti tear, antifatigue, ageing-resistant etc., above-mentioned every index is 5��10 times of rubber tyre. The inner tube of a tyre uses shore hardness A50 degree soft high-rebound polyurethane material, and main effect is: high resilience, tear-resistant, and anti-nail bundle etc., particularly high resilience can be excellent, are that rubber is incomparable, and overall performance is close to the rebound performance of pneumatic tyre.
The foregoing is only embodiment of the present utility model; not thereby patent scope of the present utility model is limited; every utilize the utility model description to do equivalent structure or equivalence flow process conversion; or directly or indirectly it is used in other relevant technical fields, all it is included in scope of patent protection of the present utility model with reason.
Claims (6)
1. a polyurethane sandwich tire, it is characterized in that, described polyurethane sandwich tire comprises cover tire (1), it is coated on the inner tube of a tyre (2) that cover tire (1) is inner, the shore hardness of described cover tire (1) is greater than the shore hardness of the described inner tube of a tyre (2), the outer tyre surface of the described inner tube of a tyre (2) is provided with and runs through for about one week, and cross section vertical with tire running direction is semicircle groove (201), the inner tread of cover tire is provided with quantity identical, length is equal, cross section is similarly the semicircle fin (101) corresponding with described groove (201), the fin (101) of described cover tire is placed in inner tube of a tyre groove (201) and bonds together.
2. polyurethane sandwich tire according to claim 1, it is characterized in that, the two sides, sidewall of described cover tire (1) all arranges one week damping, buffering hole (103) vertical with travel direction, and described damping, buffering hole (103) is circular.
3. polyurethane sandwich tire according to claim 2, it is characterised in that, described damping, buffering hole (103) is the distribution in " V " font along sidewall.
4. polyurethane sandwich tire according to claim 1, it is characterised in that, the described inner tube of a tyre (2) sidewall is provided with annular recesses (202), bonding with the annular protrusion (102) in the middle of cover tire (1) sidewall.
5. polyurethane sandwich tire according to claim 1, it is characterized in that, described cover tire (1) sidewall is provided with inner through the inner tube of a tyre (1) and parallel with described fin (101) right cylinder (105), and described right cylinder (105) and cover tire (1) two side are connected as a single entity.
6. polyurethane sandwich tire according to claim 1, it is characterised in that, the inner periphery of described cover tire (1) is provided with steel loop (104) near rim, and the cross-sectional shape of described steel loop (104) is circular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620026339.3U CN205273056U (en) | 2016-01-12 | 2016-01-12 | Polyurethane with filling tire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620026339.3U CN205273056U (en) | 2016-01-12 | 2016-01-12 | Polyurethane with filling tire |
Publications (1)
| Publication Number | Publication Date |
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| CN205273056U true CN205273056U (en) | 2016-06-01 |
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| CN201620026339.3U Expired - Fee Related CN205273056U (en) | 2016-01-12 | 2016-01-12 | Polyurethane with filling tire |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105539016A (en) * | 2016-01-12 | 2016-05-04 | 李明 | Polyurethane sandwiched tire and preparation method thereof |
| CN107584969A (en) * | 2017-09-30 | 2018-01-16 | 中山市奔点五金机械有限公司 | A kind of tire construction and castor |
| CN108909373A (en) * | 2018-07-20 | 2018-11-30 | 滁州市玉林聚氨酯有限公司 | A kind of abrasion resistant polyurethane tire and preparation method thereof |
| WO2019005125A1 (en) * | 2017-06-30 | 2019-01-03 | Compagnie Generale Des Etablissements Michelin | Edge guard for non-pneumatic wheel |
| CN109986913A (en) * | 2019-04-04 | 2019-07-09 | 宁波豌豆动力科技有限公司 | A kind of automobile-used tire of electric return board |
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2016
- 2016-01-12 CN CN201620026339.3U patent/CN205273056U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105539016A (en) * | 2016-01-12 | 2016-05-04 | 李明 | Polyurethane sandwiched tire and preparation method thereof |
| WO2019005125A1 (en) * | 2017-06-30 | 2019-01-03 | Compagnie Generale Des Etablissements Michelin | Edge guard for non-pneumatic wheel |
| WO2019005821A1 (en) * | 2017-06-30 | 2019-01-03 | Compagnie Generale Des Etablissements Michelin | Edge guard for non-pneumatic wheel |
| US11390124B2 (en) | 2017-06-30 | 2022-07-19 | Compagnie Generale Des Etablissements Michelin | Edge guard for non-pneumatic wheel |
| CN107584969A (en) * | 2017-09-30 | 2018-01-16 | 中山市奔点五金机械有限公司 | A kind of tire construction and castor |
| WO2019061959A1 (en) * | 2017-09-30 | 2019-04-04 | 中山市奔点五金机械有限公司 | Tire structure and caster |
| CN108909373A (en) * | 2018-07-20 | 2018-11-30 | 滁州市玉林聚氨酯有限公司 | A kind of abrasion resistant polyurethane tire and preparation method thereof |
| CN109986913A (en) * | 2019-04-04 | 2019-07-09 | 宁波豌豆动力科技有限公司 | A kind of automobile-used tire of electric return board |
| CN109986913B (en) * | 2019-04-04 | 2021-05-18 | 宁波豌豆动力科技有限公司 | Tire for electric scooter |
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