子分类：
| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 181 | Shape design process of engineering products and pneumatic tire designed using the present design process | US09893617 | 2001-06-29 | US20020014294A1 | 2002-02-07 | Toshihiko Okano; Masataka Koishi |
| This invention provides a product shape designing process for designing an optimal product shape, particularly a pneumatic tire contor in a cross section, comprising the following steps. A shape generation step of setting plural basal shapes and linearly combining the basal shapes to generate plural sample product shapes, a performance evaluation step of obtaining evaluation values on a product performance of the sample product shapes generated in the shape generation step, and a product shape extraction step of extracting an optimal product shape whose evaluation value on the product performance is an optimal value based on the evaluation values on the product performance obtained in the performance evaluation step. This process realizes a smooth optimal tire contor that reduces rolling resistance coefficient while increasing lateral spring constant of the tire for good drivability. | ||||||
| 182 | Pneumatic tire for passenger cars having specified harshness factor | US09185749 | 1998-11-04 | US06167932A | 2001-01-02 | Akio Yamamoto; Mitsushige Idei; Kenji Tagashira; Fumikazu Yamashita |
| A pneumatic tire for passenger cars which is improved in harshness noise without deteriorating the steering stability is disclosed, wherein a harshness factor HF is set in the range of from 3.2 to 3.5, the harshness factor HF is: HF=−0.133×(R1/100)+0.245×(R1/R2)−0.183×(Kv/10)+3.898 R1 is a radius of curvature (in mm) of a crown part of the tread profile, R2 is a radius of curvature (in mm) of shoulder parts of the tread profile, and Kv is the vertical spring constant in kN/mm of the tire. | ||||||
| 183 | Method of evaluating endurance of vehicle wheel by computer simulation | US947102 | 1997-10-08 | US5930155A | 1999-07-27 | Yasuto Tohi; Susumu Kubo |
| A method of evaluating endurance of a vehicle wheel by computer simulation of a dynamic radial fatigue test. The modeling of the system is simplified by modeling the tire portion made of a nonlinear material by linear elements, and modeling each of the air pressure, the press-contact effect of the tire bead portion and the load applied through the contact between the tire and the drum is modeled as the direct load. With such a modeling, the stress applied to the vehicle wheel can be calculated by the linear analysis instead of the nonlinear analysis, and as a results thereof, the memory capacity and the calculation time are reduced. | ||||||
| 184 | Pneumatic tire and wheelrim for a motorcycle | US886091 | 1986-07-16 | US4776378A | 1988-10-11 | Gerald A. Griffiths; Peter Ingley; David R. Watkins |
| A pneumatic tire and wheelrim assembly for a motorcycle wherein the tire comprises a pair of axially spaced wheelrim engaging bead regions, a torroidal air pressure retaining carcass reinforced by a reinforced ply extending from one bead region to the other bead region, a round contacting tread which is curved in radial cross-section of the tire and which terminates adjacent to each bead region as a shoulder of the tread characterized by said shoulder having a radially inwardly facing shoulder formation and wherein the wheelrim comprises a pair of axially spaced bead seats, one for each bead region of the tire said bead seat extending axially outwardly as radially engagement positions which are complementary to the shoulder formation so that in the assembled tire and wheelrim the tread is easily located directly by the intergagement of the shoulder formations and the engagement portion. | ||||||
| 185 | Pneumatic tire | US12017 | 1979-02-14 | US4328851A | 1982-05-11 | James N. Randle |
| A pneumatic tire of braced tread construction has a tread width which is less than its bead width. The sidewalls of the tire each have a flex area located nearer to the tire tread than to the tire bead, which flex area is adapted to exhibit relatively greater flexibility than surrounding areas of the sidewall. The tire is adapted to have a run-flat capability, being of radial ply construction for increased sidewall flexibility, and, when mounted on a wheel, incorporating a lubricant to lubricate areas of contact between the bead and tread regions of the tire when the tire is flat. | ||||||
| 186 | Pneumatic tire capable of being driven deflated | US166193 | 1980-07-07 | US4311180A | 1982-01-19 | William L. Jackson |
| A pneumatic tire having a tread and a pair of sidewalls each terminating in a tire bead in which, in use, of the tire on the wheel rim for which it is designed, the sidewalls are so shaped and reinforced that they are placed in tension when the tire is inflated to its normal working pressure and are placed in compression when the inflation pressure falls below a predetermined value. | ||||||
| 187 | Vehicle tire and wheel construction with selective deformability | US39385 | 1979-05-15 | US4308907A | 1982-01-05 | Renato Monzini |
| A pneumatic tire and wheel construction having a tire annularly disposed around the wheel and engaged therewith to form an air space for pressurized air. The tire is formed by a pair of undeformable side wall portions each having inner edges including beads of the tire and engaged with the wheel, a deformable side wall portion connected to each outer edge of the undeformable side wall portions, a restricted pliable wall portion connected each to outer edges of the deformable side wall portions and a belt portion connected between the outer edges of the restricted pliable wall portions. A tread carrying portion is connected to and around the outer surface of the belt portion and includes side projections extending axially outwardly of the belt portion with a cavity defined between each of the side projections and each of the restricted pliable wall portions respectively. Lateral restraining members are connected to the wheel and extend radially outwardly and over the undeformable side wall portions of the tires to restrict deformation thereof. | ||||||
| 188 | Method of and apparatus for making flotation tire and tire product | US849663 | 1977-11-08 | US4248287A | 1981-02-03 | Harold E. Christman |
| A hoop tread, radial carcass flotation tire is constructed in accordance with a method and through the use of apparatus which impart controlled carcass flexing characteristics while accommodating axle drive of the tire. The method includes constructing a tire carcass with radially directed cords in sidewall portions and with circumferentially directed cords in a tread face portion. The apparatus comprises a mandrel assembled by mounting a plurality of segments about an axle and used to support plies of material during carcass construction. The tire is capable of "floating" over loose or easily damaged supporting surfaces including growing crops in agricultural fields without injury or damage to the supporting surface. | ||||||
| 189 | Tires | US934277 | 1978-08-16 | US4241775A | 1980-12-30 | William L. Jackson |
| A tire or tire and wheel assembly in which the sidewalls are pretensioned before being loaded and/or deflected. Various pretensioning means are disclosed including some for displacing the beads radially, axially or circumferentially, and some for applying a radially outwards force to the tread. There is thus a tendency to lengthen the or each sidewall thereby creating pretension. | ||||||
| 190 | Pneumatic tires for high speed vehicles | US953725 | 1978-10-20 | US4209050A | 1980-06-24 | Shoji Yoshida; Katsuyuki Harakon |
| A pneumatic tire for high speed running vehicles having an aspect ratio of 0.25 to 0.75 and a carcass composed of at least two plies each formed of a textile cord layer including parallel cords crossed with those of the other ply. The carcass satisfies the following conditions:(1) The cord has an initial modulus of at least 100 g/denier;(2) The cords are embedded in rubber having a modulus of elasticity at 300% elongation of 100 to 250 kg/cm.sup.2 ;(3) The cords are inclined at an angle of 20.degree. to 40.degree. with respect to the equatorial plane of the tire;(4) The cords have a gap ratio in each ply of 10 to 65% and a gap ratio between adjacent plies of 22 to 83%. | ||||||
| 191 | Pneumatic tires having low aspect ratio | US582365 | 1975-05-30 | US4112994A | 1978-09-12 | Anthony Mark Mills; David Lyndon Buck |
| A pneumatic tire, particularly a motorcycle tire, having an aspect ratio of less than 65% and a rounded tread profile, the bias angle of the tire carcass plies being less than 22.degree.. | ||||||
| 192 | Wheel with rim embraced by tire | US710311 | 1976-07-30 | US4105254A | 1978-08-08 | Michael R. Corner; William L. Jackson |
| A wheel for use with a tire whose sidewalls are to be maintained in a mechanically compressed condition when it is mounted on the wheel comprises a central disc for attachment to a vehicle, a pair of circumferentially extending radially outwardly facing seating surfaces for each of the radially inward ends of the sidewalls of a tire and a pair of radially outwardly projecting flanges axially inboard of the seating surfaces. Means is provided to force the flanges away from each other after a tire has been mounted on the wheel with its radially inward sidewall ends on the seating surfaces, thereby to force the ends of the sidewalls axially apart while they remain on the seating surfaces. | ||||||
| 193 | Tire and wheel assemblies | US698513 | 1976-06-22 | US4091854A | 1978-05-30 | Tom French; Reginald Harold Edwards; Leslie Vernon Powell |
| A pneumatic tire and wheel assembly containing an enclosing means for a lubricating material. The enclosing means will release the lubricating material into the tire when the tire becomes deflated. | ||||||
| 194 | Motorcycle tire | US672361 | 1976-03-31 | US4042002A | 1977-08-16 | Clarence B. Alsobrook |
| A motorcycle tire particularly for racing motorcycles which has a tread, a pair of beads, and a carcass comprising a single bias ply extending to and around the beads, and a single breaker ply whose width is at least about 85 percent of the tread width and the ends of the single bias ply overlying 50 to 90 percent of the breaker ply. In its uninflated state, the cross-section of the tire suggests a triangle. | ||||||
| 195 | Vehicle wheel equipped with pneumatic tire | US633982 | 1975-11-20 | US4034790A | 1977-07-12 | Peter Johannsen; Julius Peter; Gerhard Mauk |
| A vehicle wheel having a pneumatic tire which is only slightly outwardly arched or crowned and which has a carcass and a centrally located tread strip. The tread strip has sharply defined edges and has a length approximately one third the width of the freely extended axial length of the tire body. The tire body is deflected sectionwise inwardly under a rated load in such a way that the carcass changes from a convex configuration to a concave one, in the process of which the carcass layers radially inwardly of the contact surface edges experience an angle variation of from 10.degree. to 30.degree.. | ||||||
| 196 | Pneumatic tires | US660630 | 1976-02-23 | USRE29089E | 1976-12-28 | Reginald H. Edwards |
| A radial ply tire comprises a tread, sidewall and bead regions. At least the region of severe flexing of the sidewall when the tire is run in a deflated or substantially under-inflated condition comprises a rubber compound which has a rebound resilience of at least 87 percent, and more preferably of at least 90 percent, measured by the .[.Lupke.]. .Iadd.Dunlop .Iaddend.pendulum method according to B.S. 903/1950 and a hardness in the range of 45- 65 Shore A. | ||||||
| 197 | Pneumatic tires | US536945 | 1974-12-23 | US3946783A | 1976-03-30 | Reginald Harold Edwards; Geoffrey Lionel Coulter; Alan Michael Dodd; Michael John Kenney; Alan John Bourne; David Alexander Bird |
| A tire and wheel assembly having a lubricant to enable it to be operated in a deflated condition without destructive heating in which one or more ingredients of the lubricant composition are enclosed in an enclosing means, the other ingredient or ingredients of the composition being placed in the inflation chamber of the assembly. The enclosing means release the first ingredient or ingredients into the inflation chamber, upon loss of inflation pressure, to form the composition. | ||||||
| 198 | Wheel rim | US550281 | 1975-02-18 | US3933392A | 1976-01-20 | William Neil Wells |
| A safety wheel rim for use with pneumatic tires has a removable band which is securable so as to obstruct the mouth of the well used to receive the beads of a tire when fitting the tire onto the rim. The band can thus be locked against radial expansion regardless of the position of the tire beads so that the beads cannot accidentally enter the well in the event of deflation of the tire while travelling. The well may be offset from the median plane of the rim and also spaced from the bead-retaining flanges. Examples of the securing means for the band shown are an inflation valve stem which is screw-threaded through the outer of overlapping ends of the band and which cannot be inflated unless the band is secured, and screws arranged to tighten the band circumferentially. | ||||||
| 199 | Pneumatic tire | US44176974 | 1974-02-12 | US3899014A | 1975-08-12 | ROBECCHI EDOARDO; TAVAZZA GIUSEPPE |
| A pneumatic tire is disclosed having a tread, an annular reinforcing structure in the tread, sidewalls and beads wherein the sidewalls have a section midline which is convex to the inside of the tire, both before and after inflation. The annular reinforcing structure is substantially inextensible and has sections in the central portion near the plane of the axis of rotation which have their own concavity and wherein the concavity at the central portion differs in an opposite sense from that of the lateral portions.
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| 200 | Pneumatic tire for vehicle wheels | US34506873 | 1973-03-26 | US3850218A | 1974-11-26 | BERTELLI I; TANGORRA G |
| A pneumatic tire for vehicle wheels having two sidewalls in which each is provided with at least one hinge, a section midline whose concavity is directed outwardly and grooves on at least one of the two surfaces of a sidewall. The grooves may form with radial planes angles not greater than 45* with the ratio between the depth of the grooves at a stated point and the thickness of the sidewall at the same point not exceeding a value of 0.3 at the hinges and 0.5 at the point of maximum thickness of the sidewall.
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