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1. 发明专利

AU555568B2 PNEUMATIC RADIAL TIRE HAVING A GOOD HIGH-SPEED RUNNING PERFORMANCE 未知
公开(公告)号：AU555568B2
公开(公告)日：1986-10-02
申请号：AU3569884
申请日：1984-11-20
申请人： BRIDGESTONE CORP
发明人： KAWABATA MISAO , USHIKUBO HISAO , YAMAOKA MASATAKA , MORIYA MASASHIRO , TAKIGUCHI EIJI
IPC分类号： B60C11/00 , B60C1/00 , B60C9/18

2. 发明专利

GB2150509A Pneumatic radial tire 未知
公开(公告)号：GB2150509A
公开(公告)日：1985-07-03
申请号：GB8429978
申请日：1984-11-28
申请人： BRIDGESTONE CORP
发明人： KAWABATA MISAO , USHIKUBO HISAO , YAMAOKA MASATAKA , MORIYA MASASHIRO , TAKIGUCHI EIJI
IPC分类号： B60C11/00 , B60C1/00
摘要： The tread is composed of at least two rubber layers in the direction of the thickness thereof, in which an inner rubber layer (10) has a dynamic modulus (E') of 100-250 kg/cm and an outer rubber layer (9) has a dynamic modulus (E') of 70-150 kg/cm and a loss tangent (tan delta ) of at least 0.25, and the ratio of the dynamic modulus of the inner rubber layer to that of the outer rubber layer is at least 1.15. The rubber in each layer may be based on butadiene-styrene copolymer. The average thicknesses of the inner and outer layers may be 2.0 mm and 8.0 mm respectively. The tire, for passenger cars, gives an improved steering response during high-speed running.

3. 发明专利

DE3431045A1 Tread profile for a pneumatic tyre of a passenger vehicle with good anti-skidding properties on a wet carriageway 未知
公开(公告)号：DE3431045A1
公开(公告)日：1985-03-14
申请号：DE3431045
申请日：1984-08-23
申请人： BRIDGESTONE CORP
发明人： KAWABATA MISAO , YAMAOKA MASATAKA , MORIYA MASASHIRO
IPC分类号： B60C11/11 , B60C11/03 , B60C11/04 , B60C11/113
摘要： In a pneumatic tyre for passenger cars with a tread with a wide ground contact surface and a tread profile with good anti-skidding properties in the wet, the tread has, as main tread grooves, a pair of central vertical grooves (1) which extend linearly on both sides along the central plane (O-O) of the tyre and a pair of second vertical grooves (2), each of which subdivides the area between a central vertical groove (1) and the associated side edge (L-L) of the tread into two zones (II, III) and extends linearly along the circumference. In addition, the tread has a plurality of transverse grooves (3) which obliquely intersect the main grooves (1, 2) over the entire width of the tread in a fishbone pattern, and a plurality of independent blocks (4) which are formed by the combination of the grooves (1, 2, 3). Each transverse groove (3) intersects the tread between the central plane (O-O) of the tyre and the associated central vertical groove (1) and between the associated second vertical groove (2) and the associated side edge (L-L) of the tread at a central angle of intersection of 60 DEG -90 DEG , and between the two associated vertical grooves (1, 2) at a central angle of intersection of 30 DEG -60 DEG with respect to the central plane (O-O) of the tyre. The ratio of the entire outer surfaces of the blocks (4) in the associated zones (I, II, III), divided into three, between the central plane (O-O) of the tyre and a side edge (L-L) of the ... Original abstract incomplete.

4. 发明专利

DE69212236D1 未知
公开(公告)号：DE69212236D1
公开(公告)日：1996-08-22
申请号：DE69212236
申请日：1992-05-22
申请人： BRIDGESTONE CORP
发明人： KAWABATA MISAO , YAMAGUCHI YUTAKA , YASUDA TAKUO
IPC分类号： B60C5/00 , B60C13/00 , B60C15/06 , B60C17/00
摘要： A pneumatic tire comprising a cylindrical tread (T), a pair of sidewalls (10), bead rings (20), a radial carcass (30), rubber fillers (40) respectively each arranged between turn-up portions (31) of the carcass and a main body of the carcass and extending from above the bead ring toward the tread portion such that the radially sectional shape of the rubber filler becomes narrower toward the tread portion, and a pair of thick rubber reinforcement layers arranged in the sidewalls (10). Each of the rubber reinforcement layers is constituted by first and second reinforcing rubber layers (50,60), the first reinforcing rubber layer (50) occupying a radially outer side of the sidewall (10) and the second reinforcing layer (60) being continued to a radially inner side of the first reinforcing rubber layer through an inclined joint surface (70) and arranged on a radially outer side of the rubber filler (40) through the main body of the carcass. The Shore A hardness of the rubber reinforcement layer is made greater in the order of the first reinforcing rubber layer (50), the second reinforcing rubber layer (60) and the rubber filler (40), and the rubber volume of the reinforcing rubber reinforcement layer is made greater in the order of the rubber filler (40), the second reinforcing layer (60) and the first reinforcing layer (50).

5. 发明专利

DE69024426T2 未知
公开(公告)号：DE69024426T2
公开(公告)日：1996-08-01
申请号：DE69024426
申请日：1990-08-20
申请人： BRIDGESTONE CORP
发明人： KAWABATA MISAO , USHIKUBO HISAO , YAMAGUCHI YUTAKA , TANI KATSUTOSHI , MATSUNAGA HIROO
IPC分类号： B60C9/20 , B60C9/22 , B60C11/00
摘要： A high performance pneumatic radial tire (1) comprises a toroidal carcass (3), a tread (17) radially outside a crown portion of the carcass, a belt layer (10) interposed between the carcass and the tread and having the same width as the tread, and an auxiliary layer (16) arranged between the belt layer and the tread and covering the entire belt layer. Organic cords are buried substantially parallel to an equatorial plane of the tire in the auxiliary layer (16), and land portions (19) are defined between at least tow cicumferential main grooves (18) formed in the outer surface portion of the tread and between the circumferential main grooves and axially opposite edges of the tread. In the tire the rigidity of the tire corresponding to the locations overlapping the circumferential main grooves (18) is made smaller than that at portions corresponding the the land portions by, for example, forming the auxiliary layer from at least two auxiliary plies (21,22) comprising one auxiliary ply (21) located on a radially innermost side and covering the belt layer over an entire width thereof, and cutting at least a radially outermost auxiliary ply (12) at locations overlapping the circumferential main grooves among the auxiliary plies having portions overlapping the circumferential main groove.

6. 发明专利

DE3880093T2 未知
公开(公告)号：DE3880093T2
公开(公告)日：1993-07-22
申请号：DE3880093
申请日：1988-11-17
申请人： BRIDGESTONE CORP
发明人： KAWABATA MISAO
IPC分类号： B29C33/12 , B29C33/02 , B29C33/42 , B29C35/02 , B29D30/08 , B29D30/52 , B29D30/58 , B29K21/00 , B29K105/06 , B29K105/24 , B29L30/00

7. 发明专利

DE3818355A1 未知
公开(公告)号：DE3818355A1
公开(公告)日：1988-12-22
申请号：DE3818355
申请日：1988-05-30
申请人： BRIDGESTONE CORP
发明人： KAWABATA MISAO , USHIKUBO HISAO , TOMINAGA TERUYUKI
IPC分类号： B60C9/18 , B60C11/00 , B60C11/01 , B60C11/04 , B60C11/24
摘要： A low profile pneumatic radial tire comprises at least one carcass ply containing cords arranged substantially at 90 DEG relative to a circumference of a tread, and a belt consisting of at least two belt layers which are composed of metal cords inclined relative to the circumference of the tread and intersected with one another between the adjacent belt layers and which are arranged upon a crown of the carcass. The tread surrounds the crown, and is provided with a pair of circumferential main grooves which are disposed symmetrically with respect to an equatorial plane of the tire and which divide a treading portion of the tread into a central region and axially opposite side regions and which are separated by a distance ranging from 45 to 65% of a maximum width of the tire in the state that the tire is assembled onto a normal rim and inflated at a normal internal pressure. The width of the belt ranges from 110 to 130% of a distance between intersections of an imaginary straight line which tangentially contracts with a top surface of a wear indicator projecting from a bottom of each of the circumferential grooves and which is drawn in parallel with a tire rotary axis and a tire contour line at axially opposite side regions of the tread, and the thickness of a tread rubber at maximum width edges of the tread ranges from 30 to 80% of that at the intersections.

8. 发明专利

ES2133493T3 未知
公开(公告)号：ES2133493T3
公开(公告)日：1999-09-16
申请号：ES94307130
申请日：1994-09-29
申请人： BRIDGESTONE CORP
发明人： KAWABATA MISAO , HAYASHI KAZUO
IPC分类号： B29D30/06 , B60C3/04
摘要： A mold which can be used to manufacture a high performance tire with excellent cornering performance and high speed durability. A mold (1) used for vulcanizing a pneumatic tire (6) the aspect ratio of which is not more than 50% and having, for reinforcing a tread portion (5), a belt (3) comprising at least two rubber coated cord layers having cords arranged obliquely at angles with respect to an equatorial plane (2) of the tire of 26 DEG or more, and a belt reinforcing layer (4) arranged outside the belt (3) and comprising at least one organic fiber cord layer having cords arranged substantially parallel with respect to the equatorial plane of the tire, wherein a section profile of a mold surface (7) facing the tread portion (5) has a radius smaller than that of a nominal section profile by 1% or more of a section width (W) of the tire and forms a convex curve to a cavity.

9. 发明专利

DE69022158T2 未知
公开(公告)号：DE69022158T2
公开(公告)日：1996-04-04
申请号：DE69022158
申请日：1990-10-09
申请人： BRIDGESTONE CORP
发明人： TSUDA TORU , TOKUTAKE MASAYUKI , KAWABATA MISAO , YAMAGUCHI YUTAKA
IPC分类号： B60C11/04
摘要： A pneumatic radial tire comprises a tread provided with a plurality of circumferential grooves (2-5) extending in the circumferential direction of the tire, and a plurality of land portions (6-10) defined between axially adjacent circumferential grooves and between each of the edges of the tread and the adjacent main circumferential groove. That groove wall (2a) of at least the circumferential groove (2) located nearest to at least one of the tread edges on a treading surface of the tread which is positioned on a side of the one of the tread edges is inclined to gradually increase the width of the groove toward the surface of the tread from a location spaced by 10-70% of the depth of the circumferential groove radially outwardly from the bottom thereof. The width of the opening of the circumferential groove to the surface of the tread is in a range of 3-18 mm.

10. 发明专利

DE69102248T2 未知
公开(公告)号：DE69102248T2
公开(公告)日：1994-11-24
申请号：DE69102248
申请日：1991-11-28
申请人： BRIDGESTONE CORP
发明人： KAWABATA MISAO , USHIKUBO HISAO , YAMAGUCHI YUTAKA , TANI KATSUTOSHI , MATSUNAGA HIROO
IPC分类号： B60C9/18 , B60C9/08 , B60C9/22 , B60C11/04 , B60C11/11 , B60C11/06
摘要： A high-speed running pneumatic radial tire comprises a cylindrical crown portion, a pair of sidewall portions extending inward therefrom, a radial carcaas (7) extending from one of the sidewall portions through the crown portion to the other sidewall portion, and a belt (8) and a tread (9) successively superimposed on the crown portion outward in the radial direction of the tire. The tread has a plurality of rows of blocks (3) defined by a plurality of circumferential grooves (1a,1b) and by lateral grooves (2a,2b), and the belt (8) is comprised of at least two main cross-cord belt layers (8a) and an auxiliary belt layer (8b) arranged thereon. The auxiliary belt layer is formed by spirally winding a rubberized ribbon ply of heat-shrinkable cords (12) on the main belt layers (8a), in which an overlapped amount of the ribbon ply is made larger in a zone (B,C) of the tread substantially corresponding to a block row (3) than in a zone (A) of the tread substantially corresponding to a circumferential groove (1a,1b).

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