CN1798662B - Non-pneumatic tire - Google Patents
Non-pneumatic tire Download PDFInfo
- Publication number
- CN1798662B CN1798662B CN2004800017948A CN200480001794A CN1798662B CN 1798662 B CN1798662 B CN 1798662B CN 2004800017948 A CN2004800017948 A CN 2004800017948A CN 200480001794 A CN200480001794 A CN 200480001794A CN 1798662 B CN1798662 B CN 1798662B
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- rubber
- pneumatic tire
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- 229920001971 elastomer Polymers 0.000 claims abstract description 73
- 239000005060 rubber Substances 0.000 claims abstract description 72
- 206010016256 fatigue Diseases 0.000 claims description 17
- 239000004744 fabric Substances 0.000 claims description 6
- 230000002708 enhancing effect Effects 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 abstract description 22
- 230000020169 heat generation Effects 0.000 abstract 1
- 210000003754 fetus Anatomy 0.000 description 23
- 238000005299 abrasion Methods 0.000 description 11
- 238000012360 testing method Methods 0.000 description 11
- 238000013461 design Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000005336 cracking Methods 0.000 description 3
- 125000004122 cyclic group Chemical group 0.000 description 3
- 230000001012 protector Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000006229 carbon black Substances 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
- 239000013536 elastomeric material Substances 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229920002994 synthetic fiber Polymers 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 244000286663 Ficus elastica Species 0.000 description 1
- 239000006237 Intermediate SAF Substances 0.000 description 1
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 description 1
- 239000005062 Polybutadiene Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000033001 locomotion Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
- 229920001195 polyisoprene Polymers 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C7/00—Non-inflatable or solid tyres
- B60C7/10—Non-inflatable or solid tyres characterised by means for increasing resiliency
- B60C7/107—Non-inflatable or solid tyres characterised by means for increasing resiliency comprising lateral openings
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Tires In General (AREA)
Abstract
The invention provides a non-pneumatic tire having a plurality of holes (6) that are opened in tire side faces. The reinforcement rubber (8) having excellent stretch fatigue resistance at least at the outer side of holes (6). Thereby obtaining the non-pneumatic tire with holes and preventing the occurrence of a crack in the hole-portion wall (9) without sacrificing cushioning characteristics, resistance to heat generation and wear resistance. The non-pneumatic tire solves the problems that a non-pneumatic tire (1) having holes (6) opened in tire side faces generates a crack in the hole-portion wall (9), even the performance of the tire can be kept, the tire is replaced necessarily in consideration of tire appearance.
Description
Technical field
The present invention relates to a kind of non-pneumatic tire, this tire has a plurality of holes at the tire lateral opening.
Background technology
The fork truck in past, the wheel that the industrial vehicle of wheel type loader etc. is used adopts air-inflation tyre.But, abominable etc. former thereby disappointing because of pavement conditions in weight transports, in occasion, replace air-inflation tyre with disappointing danger, and many preferred non-pneumatic tires (band tyre) that adopts.
But the rigidity of non-pneumatic tire is higher, and this tire is in the vibration of ground-surface jog, and this vibration transfer is given body, and traveling comfort is poor, produces situation such as wheel cracking in addition, also body is caused adverse effect.
So people propose to offer in the side of non-pneumatic tire the method in hole, are the undismayed characteristics that can bring into play non-pneumatic tire, the method for giving resiliency simultaneously.The ideal form in the hole of offering in the non-pneumatic tire side is disclosed in the flat 11-514602 document of the special table of JP, the special table of JP 2000-515452 document, the flat 10-236217 document of TOHKEMY.Drop into practically according to these motions, offer porose non-pneumatic tire and put into market widely and use.Figure 13 representes to be arranged on the non-pneumatic tire (band tyre) in the hole of tire lateral opening in the past, that is, and and an instance of perforate band tyre.
Shown in figure 13; The perforate band tyre T in past is formed by rubber elastic material; Be installed on the base portion B of the interior circumferential portion on the wheel rim (not shown) and the tyre surface D of kiss the earth side and be arranged on the concentric circles, on the respective side of the tire left and right sides, offer a plurality of hole H along tire axial.
Originally, the interior circumferential portion chimeric with wheel rim in non-pneumatic tire adopted the higher rubber of rigidity, so that tire is firmly fixed on the wheel rim.In addition, consider the vibration transfer and the traveling comfort that prevent to body, in non-pneumatic tire with the chimeric interior circumferential portion of wheel rim with and contact the pars intermedia between the ground-surface fetus face, adopt the good rubber of resiliency.In addition, consider and the ground-surface friction that general fetus face adopts the good rubber of abrasion performance, fetus face and pars intermedia are made up of the rubber of homogeneity.
This scheme promptly, is identical in the perforate band tyre at the non-pneumatic tire in the hole that is arranged at the tire lateral opening, considers resiliency usually and is arranged at pars intermedia in the hole of tire lateral opening, or be arranged at the rubber layer that strides across tyre surface and pars intermedia.
Such, have in the non-pneumatic tire in the hole of tire lateral opening, at the tire body bearing load of a side of contacting to earth, deflection and when being out of shape, the shape that is positioned at the hole of this part also is out of shape.So, if vehicle ', the tire rotation; Each hole repeated deformation then, the part at the maximum distortion of the wall in each hole produces bigger distortion times without number; The abrasion of " occurrence frequency is lower " finger wheel tire tread; Occur before the life problems of tire, the rubber with this part is little by little tired, the situation of generation of cracks.In this occasion, although keep the performance of tire, because from saying in appearance, the value reduction of tire is so changing of tire then still throws into question.In addition, the be full of cracks generation phenomenon of this hole portion wall particularly is more common in the part that elongation strain produces repeatedly, because more near tire protector, the distortion of tire is big more, so this phenomenon pilosity is born in the part in the tire radius direction outside that constitutes the hole.
As counter-measure, people also consider design when squeegee action, and distortion does not concentrate on the hole shape of a part.But, the operational situation of the vehicle of tire is installed, that is, and during cruising, when setting out, the bore deformation of glancing impact etc. is different according to circumstances and fully.Thus, the deformation state in hole according to circumstances changes, and is out of shape the concentrated area in addition and also is not limited to certain position, because of moving, is not easy to realize the actv. design.
In addition,, be opened in buffer part, or be opened in fetus face and buffer part as pars intermedia in the hole of tire lateral opening as above-mentioned.But the rubber of offering porose buffer part mainly is conceived to resiliency, anti-heat generation and designs, and the rubber of fetus face mainly is conceived to abrasion performance and designs.Thus, in the fatigue durability of not considering repeated deformation, the tire rotation during repeated deformation of hole, has the distortion concentrated area of portion's wall from the hole, particularly produces the danger of the part generation of cracks of elongation strain.
Generally; Rubber property is in the relation of following repulsion; That is, opposite with the resiliency of the good rubber of bounce-back property, situation that anti-heat generation is good, the fatigability of anti-elongation of its repeated deformation is poor; The situation good with the fatigue durability of the repeated deformation of the bad rubber of bounce-back property is opposite, and its resiliency, anti-heat generation are poor.
So, design the rubber of buffer part if consider the fatigability of anti-the elongation, then sacrifice resiliency, anti-heat generation, form resiliency, the bad tire of anti-heat generation.Equally, design the rubber of fetus face if consider the fatigability of anti-the elongation, then sacrifice abrasion performance, form the short tire of life-span of abrasion performance difference.
Summary of the invention
The object of the present invention is to provide a kind of non-pneumatic tire that has in the hole of tire lateral opening; This non-pneumatic tire is not sacrificed the resiliency that perforate non-pneumatic tire in the past had originally, and anti-heat generation and abrasion performance are even under the situation of the concentrated area of the distortion that produces hole portion wall; Still be not easy on Kong Bubi, to produce be full of cracks; In addition, even under the situation that this be full of cracks takes place, be full of cracks still is not easy growth.
The present invention constitutes to achieve these goals; Non-pneumatic tire of the present invention is formed by rubber elastomer etc.; Have a plurality of holes at the tire lateral opening; It is characterized in that outside the direction of tire radius at least around this hole, comprise the different good Reinforced Rubber of the fatigability of anti-elongation of rubber that the hole periphery is provided with and this hole is peripheral of peristome.
According to such scheme, when being out of shape the contacting to earth the side sections bearing load of tire, the hole that is opened on the tire side also is out of shape, when tire rotates; Repeated deformation, the part outside the tire radius direction in this hole, the concentrated area produces the cyclic extension distortion; But because in the direction of tire radius at least in the hole outside, it is good that the hole periphery that comprises peristome is provided with its fatigability of anti-the elongation; With the different Reinforced Rubber of rubber of hole periphery,, prevent situation in the hole portion wall generation of cracks in the tire radius direction outside so can not damage the characteristic of fetus face, buffer part; Maybe can postpone the generation of this be full of cracks, consequently, but life of tire.
In addition, the invention is characterized in around a plurality of holes of the tire lateral opening of non-pneumatic tire, bury the enhancing cloth and silk that surrounds each hole underground, strengthen wire rod.
Through such scheme, when the tire rotation, during bore deformation; When load was on the hole portion wall in the tire radius direction outside in hole, above-mentioned reinforcement became damper element, load diversity; Prevent to produce the situation that distortion is concentrated, or relax this situation, thus; Do not damage the characteristic of fetus face, buffer part, prevent maybe can postpone the generation of this be full of cracks in the situation of the hole portion wall generation of cracks in the tire radius direction outside.In addition, even be still can prevent under the situation of generation of cracks around the hole portion wall in the tire radius direction outside in this hole, or the growth of delayed cracking.
In addition; The invention is characterized in non-pneumatic tire in the direction of the tire radius at least outside in a plurality of holes of tire lateral opening; The hole periphery that comprises peristome is provided with the rubber different anti-elongation fatigability good Reinforced Rubber peripheral with this hole; And bury the enhancing cloth and silk that surrounds it underground, strengthen wire rod.
Pass through such scheme; The be full of cracks that not only has above-mentioned Reinforced Rubber prevents effect, and also has the distortion of reinforcement to slow down effect, prevents more effectively; The generation of the distortion concentrated area in the tire radius direction outside in mitigation hole; Thus, be difficult to generation of cracks, obtain better be full of cracks and prevent effect.
In addition, the Reinforced Rubber that is arranged at the direction of the tire radius at least outside around the hole of tire lateral opening can adopt the rubber that is described below, that is, in the fatigue durability test, the long-pending 100mm of reaching of the degree of depth of the be full of cracks that is taken place and length
2The time number of times, preferably more than 1,500,000 times, particularly preferably in more than 3,000,000 times.
In addition, the reinforcement that is embedded in the direction of the tire radius at least outside around the hole of tire lateral opening is by through nylon, and the cloth and silk that the syntheticfibres of poly-ester fibres etc. forms strengthens formation such as wire rod.At this moment, the reinforcement that is formed by cloth and silk has flexibility concurrently.
As such scheme, can be through adopting reinforcement, dispersing action can prevent, slow down the generation of distortion concentrated area in the load in the tire radius direction outside in hole effectively, suppresses the generation of be full of cracks.Even under the situation of generation of cracks, still can prevent the growth of delayed cracking.In addition, the generation of the wound that also can reduce to cause with contacting of obstacle, even under the situation that wound takes place, this wound still is not easy to transmit, and can prevent the expansion of this wound.
Description of drawings
Fig. 1 is the cutaway view along tire axle of the 1st embodiment of expression perforate band tyre of the present invention;
Fig. 2 is the cutaway view along the X-X line of Fig. 1;
Fig. 3 representes another instance of the perforate band tyre of the 1st embodiment;
Fig. 3 A is for representing the cutaway view along tire axle of the tire of another instance 1 with the left side;
Fig. 3 B is for representing the cutaway view along tire axle of the tire of another instance 2 with the left side;
Fig. 3 C is for representing the cutaway view along tire axle of the tire of another instance 3 with the left side;
Fig. 4 representes the 2nd embodiment of perforate band tyre of the present invention;
Fig. 4 A is the cutaway view along tire axle;
Fig. 4 B is the cutaway view along the X-X line of Fig. 4 A;
Fig. 5 is another instance 1 of the perforate band tyre of the 2nd embodiment;
Fig. 5 A is for representing the cutaway view along tire axle of tire with the left side;
Fig. 5 B is the cutaway view along the X-X line of Fig. 5 A;
Fig. 6 is another instance 2 of the perforate band tyre of the 2nd embodiment;
Fig. 6 A is for representing the cutaway view along tire axle of tire with the left side;
Fig. 6 B is the cutaway view along the X-X line of Fig. 6 A;
Fig. 7 is another instance 3 of the perforate band tyre of the 2nd embodiment;
Fig. 7 A is for representing the cutaway view along tire axle of tire with the left side;
Fig. 7 B is the cutaway view along the X-X line of Fig. 7 A;
Fig. 8 is another instance 4 of the perforate band tyre of the 2nd embodiment;
Fig. 8 A is for representing the cutaway view along tire axle of tire with the left side;
Fig. 8 B is the cutaway view along the X-X line of Fig. 8 A;
Fig. 9 is the 3rd embodiment of perforate band tyre of the present invention;
Fig. 9 A is for representing the cutaway view along tire axle of tire with the left side;
Fig. 9 B is the cutaway view along the X-X line of Fig. 9 A;
The situation and the result of the deformation experiment that Figure 10 representes to carry out to another instance 3 of in the past non-pneumatic tire and the 2nd embodiment of the present invention;
Figure 10 A representes the not part sectional view of the tire of the state of the non-pneumatic tire in the past of load application;
Figure 10 B representes the not part sectional view of the tire of the state of the non-pneumatic tire of another instance 3 of the 2nd embodiment of load application;
The partial side view of the tire of the state of the non-pneumatic tire in the past when Figure 10 C applies 2 tons load for expression;
The partial side view of the tire of the state of the non-pneumatic tire of another instance 3 of the 2nd embodiment when Figure 10 D applies 2 tons load for expression;
Variable quantity when Figure 10 E is the expression load application and the table of deformation rate;
The figure of the rubber test sheet that Figure 11 makes an experiment to the stretch-proof fatigue of repeated deformation for explanation;
Figure 12 is for the concrete proportioning instance and its characteristic of expression to Reinforced Rubber of the present invention, with general fetus face rubber and the proportioning instance of buffer part rubber and the table that characteristic compares thereof in past;
Figure 13 is the transparent view of the partly cut-away of an instance of expression perforate band tyre in the past.
The explanation of label
Label 1 expression perforate band tyre;
Label 4 expression buffer part;
Label 11 expression metal sheets;
Label 12 expression rubber test sheets;
Label h representes the height of the rubber of test piece;
Label D representes the diameter of the rubber of test piece;
Label S representes the steel bead wire line.
The specific embodiment
According to accompanying drawing, embodiments of the invention are described below.
Fig. 1 and Fig. 2 represent the 1st embodiment of perforate band tyre of the present invention, and Fig. 1 is the cutaway view along tire axle, and Fig. 2 is the cutaway view along the X-X line of Fig. 1.
In the 1st embodiment, the perforate band tyre 1 of non-air formula is formed by the elastomeric material of rubber etc., on concentric circles, is provided with the fetus face 3 of the base portion 2 that is installed on the interior circumferential portion on the wheel rim and the side of contacting to earth.In addition, between two parts, form buffer part 4, the tire left and right sides face 5a of this buffer part 4,5b are last,, offer a plurality of hole 6a, 6b respectively along tire axial, and this hole is provided with along the circumferential direction.In addition, Reinforced Rubber 8a, 8b are according in the scope that comprises the peristome 7a of hole 6a, 6b, 7b, and the mode that covers tire two sides 5a, 5b is provided with.
In addition, Reinforced Rubber 8a, 8b be according to peristome 7a, the 7b of 6a, 6b from the hole, along depth direction, from hole depth about 1/4th to entire scope, the single-piece mode constitutes around the coverage hole.
As instantiation; The occasion of tire 7.00～12; The thickness of Reinforced Rubber 8a, 8b that is arranged at tire two sides 5a, 5b is in the scope of 5～15mm; Reinforced Rubber 8a, 8b around hole depth direction coverage hole 6a, 6b reduce along depth direction gradually, to about 1/3rd to 2/3rds places of hole depth.
The elastomeric material that is used for Reinforced Rubber 8a, 8b is the good rubber of stretch-proof fatigability; Such as; Hardness (JIS K6253 (1997) Shore hardometer A hardness } in the scope of 50～80 degree; Be the main body with India rubber and poly-butadiene rubber, be fit to mix the carbon black of ISAF, HAF grade as intensifier, the nitrogen adsorption specific surface area of this carbon black is at 70～140m
2In the scope of/g, in addition, also can be appropriate combination silicon dioxide and the type used.Figure 12 representes the concrete proportioning instance and its characteristic (proportioning embodiment 1～3) to preferred Reinforced Rubber, with general fetus face rubber and the proportioning instance of buffer part rubber and the table that characteristic compares thereof in past.
The test of the stretch-proof fatigability shown in the table of Figure 12 is carried out through following manner; This mode is: the two ends of that kind shown in Figure 11 and metal sheet 11 are bonding; Height h is 18mm, and diameter D is that the columned rubber test sheet 12 of 21mm is along the frequency cyclic extension 25% of short transverse according to 300 times/1 minute.
The degree of depth of the be full of cracks of then, measuring this test piece and being produced and the long-pending 100mm of reaching of length
2The time number of times.
In table, the fatigability of anti-elongation of Reinforced Rubber, fetus face rubber and buffer part rubber, promptly, the long-pending 100mm of reaching of the degree of depth of the be full of cracks that test piece produced and length
2The time number of times in the occasion of the proportioning embodiment 1～3 of Reinforced Rubber; Be respectively 3,160,000 times, 3,570,000 times, 3,000,000 times, relative therewith, in the occasion of fetus face rubber; Be 1,070,000 times, in the occasion of buffer part rubber; Be 430,000 times, the fatigability of anti-elongation of the proportioning embodiment 1～3 of Reinforced Rubber is about 3 times of fetus face rubber, about 7 times of buffer part rubber.
The use boundary of common non-pneumatic tire (band tyre) depends on the abrasion of fetus face, because of fetus face abrasion, generation time problem.But, in the perforate non-pneumatic tire, have following situation; That is, before the tire life problem that the abrasion that produce tire protector portion cause, because the distortion that produces at the Kong Bubi place; Produce be full of cracks, although keep the performance of tire, changing of tire then still.
Thus, people hope to prevent to act on the be full of cracks generation that the distortion on the hole portion wall causes, and identical with common non-pneumatic tire, the life-span that relies on the abrasion of tire protector constitutes the use boundary of perforate non-pneumatic tire.
In order to realize this purpose, as previously mentioned,, under the situation of abrasion performance (fetus face), prevent the generation of the be full of cracks of hole portion wall at the resiliency that does not damage non-pneumatic tire, anti-heat generation (buffer part), around the hole Reinforced Rubber is set.Proportioning embodiment 1～3 that kind that provides in the table of this Reinforced Rubber employing Figure 12, its stretch-proof fatigability is higher than buffer part rubber, the rubber of fetus face rubber.
In the perforate non-pneumatic tire 1 of such structure, around the peristome 7a of the hole 6a of tire side 5a, 5b side, 6b, 7b, relative repeated deformation is set; The Reinforced Rubber 8a that the stretch-proof fatigability is good, 8b, thus, even in the hole 6a, 6b repeated deformation; The tire radius direction outside that elongation strain in Kong Bubi 9 is bigger produces under the situation of cyclic extension distortion, does not still damage fetus face; The characteristic of buffer part prevents the generation of chapping, even under the situation that produces be full of cracks; Still can postpone its growth, can prolong the life-span of perforate non-pneumatic tire.
In addition, improve,, also can postpone the growth of the be full of cracks of wound so even under case of collision such as tire and obstacle, the generation of wound still can reduce owing to comprise the peristome 7a of hole 6a, 6b, the tire two sides 5a of 7b, the intensity of 5b.
Fig. 3 representes another instance 1～3 of the perforate band tyre of the 1st embodiment.
Another instance 1 shown in Fig. 3 A constitutes according to the mode that Reinforced Rubber 8 covers the tire side 5 in the tire radius direction outside on every side that comprises hole 6.
Another instance 2 shown in Fig. 3 B is according to the thickness that increases the Reinforced Rubber 8 that covers tire side 5, and the mode that Reinforced Rubber 8 covers whole hole 6 constitutes.
In addition, another instance 3 shown in Fig. 3 C is according to the thickness of the Reinforced Rubber 8 that reduces to cover tire side 5, and only coverage hole 6 around the mode of tire side constitute.
Fig. 4 representes the 2nd embodiment of perforate band tyre of the present invention.
The 2nd embodiment constitutes basically in the following manner; This mode is: substitute the Reinforced Rubber of the 1st embodiment, reinforcement 10a, 10b are comprising the peristome 7a of hole 6a, 6b, the scope of 7b, 5a, 5b along the tire two sides; Circumferentially connect along tire; Stride across the rubber or the fetus face 3 of buffer part 4, the rubber of base portion 2 and burying underground is around coverage hole 6a, the 6b.
In addition, can carry out bonding processing to tire body, whether carrying out bonding processing is not special the qualification yet.
Through this scheme, in the tire rotation, when hole 6a, 6b repeated deformation; But reinforcement 10a, 10b dispersing action are in the load in the tire radius direction outside of Kong Bubi 9; Can prevent to produce the situation of the concentrated area of elongation strain, maybe can slow down this situation, can prevent the generation of chapping.In addition, even under the situation that be full of cracks takes place, still can prevent the growth of chapping, or postpone and to take place.
In addition, owing in comprising the tire two sides 5a of the peristome 7a of hole 6a, 6b, 7b, 5b, bury reinforcement 10a, 10b underground; So can reduce the generation of the wound that causes with contacting of obstacle; Even under the situation that wound takes place, this wound still is not easy to propagate, and can prevent the expansion of wound.
Fig. 5～Fig. 8 representes another instance 1～4 of the perforate band tyre of the 2nd embodiment.
Another instance 1 shown in Figure 5 circumferentially connects along tire according to reinforcement 10,6 the tire radius direction outside along the hole, and comprise that the mode that the tire side 5 in the radial direction outside in hole 6 is buried underground constitutes.
Another instance 2 shown in Figure 6 circumferentially is banded according to reinforcement 10 along tire and connects, and the mode of burying underground outside the tire radius direction of coverage hole 6 constitutes.
Another instance 3 shown in Figure 7 is according to around hole 6, and the mode of burying the many reinforcements 10 that the wire rod by the steel flexible cord forms underground constitutes.
Another instance 4 shown in Figure 8 according in the hole 6 around the whole mode of burying the reinforcement 10 of cap shape underground constitute.
Fig. 9 representes the 3rd embodiment of perforate band tyre of the present invention.
The 3rd embodiment constitutes according to the mode with another instance 1 combination of another instance 1 of the 1st embodiment and the 2nd embodiment; According to be positioned at hole 6 around the tire radius direction outside; And in the Reinforced Rubber 8 that is provided with along circumferential connection of tire, the mode that reinforcement 10 was buried underground along circumferential connection of tire constitutes.
Through forming this scheme, the load of reinforcement 10 dispersing actions on Kong Bubi 9 prevents to produce the situation of distortion concentrated area, even and under the situation that produces the distortion concentrated area, Reinforced Rubber 8 still can prevent the generation of chapping.
Figure 10 representes to non-pneumatic tire in the past; The situation and the result thereof of the deformation test of carrying out with another instance 3 of the 2nd embodiment of the present invention; Figure 10 A representes the not part sectional view of the tire of the state of the non-pneumatic tire in the past of imposed load; Figure 10 B representes the not partial side view of the tire of the state of the non-pneumatic tire of another instance 3 of the 2nd embodiment of load application; The partial side view of the tire of the state of the non-pneumatic tire in the past when Figure 10 C applies 2 tons load for expression; Figure 10 D is the partial side view of tire of state of non-pneumatic tire of another instance 3 of the 2nd embodiment when applying 2 tons load, variable quantity and the table of deformation rate of Figure 10 E during for the expression load application.
It is as shown in the table like the Test condition of Figure 10, in the deformation rate of the bore ends of the non-pneumatic tire of burying reinforcement around the hole underground for below the non-pneumatic tire of not burying reinforcement underground in the past half the.Through around the hole, burying the scheme of reinforcement underground, but the load in the hole portion when the reinforcement dispersing action is out of shape in the tire bearing load can be fit to slow down the distortion around the hole, and what prevent to be out of shape concentrates, and prevents the generation of chapping, and can improve the durability of tire.
In the present invention, Reinforced Rubber and reinforcement and combination thereof are not limited to the above embodiments, also can be the various combinations of the embodiment that describes up till now, in addition, also can be not limited to these combinations.
In addition, the shape in the hole that the form in the hole of the tyre side opening of each embodiment is not limited to provide among above-mentioned each embodiment, such as, the shape in hole is not limited to circle, also can be ellipse, avette, quadrangle or polygon or their combination.
In addition, both can be individual layer along hole row circumferentially in a row arranged side by side, also can be two-layer more than, the hole also can be run through along tire axial, also can be at the inner sealing of tire.For the setting in hole, up and down both can be arranged side by side about tire width direction with tire diameter direction, but also interleaved shape and alternately arranging adopts various forms.
Utilize possibility on the industry
The present invention is above-mentioned scheme, for the non-pneumatic tire that has in the hole of tire lateral opening, even under the situation of hole portion repeated deformation, still can prevent or postpone the be full of cracks that portion produces in the hole, even perhaps producing under the situation about chapping, still can postpone its growth.
Claims (2)
1. non-pneumatic tire; This non-pneumatic tire has a plurality of holes at the tire lateral opening; It is characterized in that: the direction of the tire radius at least outside in each hole; From peristome along the hole depth direction, from hole depth 1/4th to the hole single-piece hole periphery, the rubber different anti-elongation fatigability good Reinforced Rubber peripheral with this hole is set.
2. non-pneumatic tire as claimed in claim 1 is characterized in that: circumferentially connect along tire simultaneously, bury the enhancing cloth and silk underground, strengthen wire rod.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP028769/2003 | 2003-02-05 | ||
| JP2003028769 | 2003-02-05 | ||
| PCT/JP2004/001159 WO2004069563A1 (en) | 2003-02-05 | 2004-02-04 | Non-pneumatic tire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1798662A CN1798662A (en) | 2006-07-05 |
| CN1798662B true CN1798662B (en) | 2012-06-20 |
Family
ID=32844214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2004800017948A Expired - Fee Related CN1798662B (en) | 2003-02-05 | 2004-02-04 | Non-pneumatic tire |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP4370599B2 (en) |
| CN (1) | CN1798662B (en) |
| WO (1) | WO2004069563A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4908792B2 (en) * | 2005-07-06 | 2012-04-04 | 株式会社ブリヂストン | Pneumatic cushion tire |
| WO2017116385A1 (en) | 2015-12-28 | 2017-07-06 | Compagnie Generale Des Etablissements Michelin | Method of forming non-pneumatic tire including pressure application between an intermediate section and an outer shear band ring |
| WO2017116384A1 (en) | 2015-12-28 | 2017-07-06 | Campagnie Generale Des Etablissements Michelin | Method of forming non-pneumatic tire using support structure deformation |
| JP7083068B2 (en) * | 2018-03-23 | 2022-06-09 | トレルボルグ ホイール システムズ イタリア ソチエタ ペル アチオーニ | Solid tire with shock absorbers |
| WO2021137956A1 (en) | 2019-12-30 | 2021-07-08 | Bridgestone Americas Tire Operations, Llc | Non-pneumatic tire having molded sidewall cover |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5343916A (en) * | 1991-02-27 | 1994-09-06 | The Goodyear Tire & Rubber Company | Non-pneumatic spare tire |
| CN2181418Y (en) * | 1993-08-02 | 1994-11-02 | 蒋常华 | Non-inflatable tyre for non-rubber inner tube |
| CN1161021A (en) * | 1994-08-19 | 1997-10-01 | 艾尔博斯轮胎有限公司 | Ground-engaging apparatus |
| CN1178503A (en) * | 1995-01-24 | 1998-04-08 | 艾尔博斯轮胎有限公司 | Tyre |
| CN2424949Y (en) * | 2000-03-28 | 2001-03-28 | 吴天火 | Inflating-free tyre |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2750409B2 (en) * | 1987-12-15 | 1998-05-13 | エアボス リミテッド | Tire structure |
| JP3176447B2 (en) * | 1992-11-04 | 2001-06-18 | オーツタイヤ株式会社 | Solid tire |
| JP4132123B2 (en) * | 1997-03-01 | 2008-08-13 | 福山ゴム工業株式会社 | Non-pneumatic tire |
-
2004
- 2004-02-04 JP JP2005504862A patent/JP4370599B2/en not_active Expired - Lifetime
- 2004-02-04 CN CN2004800017948A patent/CN1798662B/en not_active Expired - Fee Related
- 2004-02-04 WO PCT/JP2004/001159 patent/WO2004069563A1/en active Search and Examination
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5343916A (en) * | 1991-02-27 | 1994-09-06 | The Goodyear Tire & Rubber Company | Non-pneumatic spare tire |
| CN2181418Y (en) * | 1993-08-02 | 1994-11-02 | 蒋常华 | Non-inflatable tyre for non-rubber inner tube |
| CN1161021A (en) * | 1994-08-19 | 1997-10-01 | 艾尔博斯轮胎有限公司 | Ground-engaging apparatus |
| CN1178503A (en) * | 1995-01-24 | 1998-04-08 | 艾尔博斯轮胎有限公司 | Tyre |
| CN2424949Y (en) * | 2000-03-28 | 2001-03-28 | 吴天火 | Inflating-free tyre |
Also Published As
| Publication number | Publication date |
|---|---|
| JPWO2004069563A1 (en) | 2006-05-25 |
| WO2004069563A1 (en) | 2004-08-19 |
| CN1798662A (en) | 2006-07-05 |
| JP4370599B2 (en) | 2009-11-25 |
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