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1. 发明专利

JPH0529545B2 失效
公开(公告)号：JPH0529545B2
公开(公告)日：1993-04-30
申请号：JP23991389
申请日：1989-09-18
申请人： BRIDGESTONE CORP
发明人： NISHIMOTO KICHINOSUKE , MOTOMURA KENICHI , IMAI YOSHIMASA
IPC分类号： B29D30/30 , B29D30/08 , B29K21/00

2. 发明专利

JPS6351886B2 失效
公开(公告)号：JPS6351886B2
公开(公告)日：1988-10-17
申请号：JP16786379
申请日：1979-12-24
申请人： BRIDGESTONE CORP
发明人： NIBU HIKARI , MOTOMURA KENICHI
IPC分类号： B60C9/08 , B60C15/00 , B60C15/06

3. 发明专利

JPS61152413A PNEUMATIC TIRE AND MANUFACTURE THEREOF 失效
公开(公告)号：JPS61152413A
公开(公告)日：1986-07-11
申请号：JP27769984
申请日：1984-12-26
申请人： BRIDGESTONE CORP
发明人： MOTOMURA KENICHI , SUEYASU YASUSUKE
IPC分类号： B29C33/02 , B29C33/38 , B29D30/06 , B29K21/00 , B29K105/24 , B29L30/00
摘要： PURPOSE:To provided the pneumatic tire having the side well part in which cracks occur very scarcely on a rubber surface by causing the surface roughness on the surface of side wall part of a tire to be equal to a specified value or less. CONSTITUTION:The surface roughness on the side surface 5a of the side wall part 5 of a pneumatic tire 1 is caused to be equal to 1.0-S or less. Because the surface roughness is made to be fine, the beauty of the side wall part 5 with luster feeling similar to a new product is kept for a long period of lime by applying wax coating. The chrome plating layer 14 with 20-200mum thick is applied to the surface 11a of a tire shaping mold 11 being in contact with at least the side wall part 5 of the tire 1, whereby the fine unevenness of the mold surface 11a is covered, and the surface roughness is caused to be equal to 1.0-S or less. The pneumatic tire is vulcanized and shaped, using said mold 11.

4. 发明专利

JPH10187044A DISPLAY LABEL AND METHOD FOR FORMING DISPLAY LABEL 失效
公开(公告)号：JPH10187044A
公开(公告)日：1998-07-14
申请号：JP2362397
申请日：1997-02-06
申请人： BRIDGESTONE CORP
发明人： MIYAZAKI TOSHIHIKO , MOTOMURA KENICHI
IPC分类号： G09F3/00 , G09F3/02
摘要： PROBLEM TO BE SOLVED: To provide a display label that is efficiently formed eliminating the need to manufacture a mold and makes it possible to recognize display information semipermanently. SOLUTION: The display label 10 is constituted by holding a display layer 14 where a logotype is displayed by adhering ink 15 between a base material layer 16 and a protection layer 12 which are composed of elastic or flexible materials. Consequently, the logotype can be formed on a side part 40 of a tire without need to manufacture a patterned mold and even when the logotype is formed on the side part 40 of the tire having a large deformation quantity, the protection layer 12 and base material layer 16 deform to follow up the deformation of the side part 40 not to generate a strain between the surface of the side part 40 and the base material layer 16 of the display label 10 and to eliminate peeling.

5. 发明专利

JPH03101922A MANUFACTURE OF TIRE 失效
公开(公告)号：JPH03101922A
公开(公告)日：1991-04-26
申请号：JP23991389
申请日：1989-09-18
申请人： BRIDGESTONE CORP
发明人： NISHIMOTO KICHINOSUKE , MOTOMURA KENICHI , IMAI YOSHIMASA
IPC分类号： B29D30/30 , B29D30/08 , B29K21/00
摘要： PURPOSE:To produce the tire with stable quality, while the accuracy of the position to be stuck of cushion rubber is heightened by a method in which the cushion rubber is divided and the divided parts are preset on a first belt and a carcass ply etc. CONSTITUTION:Cushion rubber 4 is divided into three, and its one part 4a is preset on a first belt 1a, the other part 4b is preset on a carcass ply 5 and its residual part is preset on a side tread 6. When air is injected into the carcass ply 5, and a bladder 9 is inflated by approaching the left and right cylindrical parts of a molding drum 8, the central part of the carcass ply 5 is expanded outside, and simultaneously when a bladder 10 is inflated by feeding air into the bladder, the carcass ply 5 and the side tread 6 is folded back by using beads 7 as a fulcrum. When its shaping is further advanced, this folded back part encloses the beads 7 and is brought in contact with the inner part of the carcass ply 5. When the bladder 11 is inflated, the force pressing the side tread 6 inside is increased, and the carcass ply 5 and the side thread 6 are mutually bonded in pinched and pressurized state between the bladder 11 and the inside bladder 9.

6. 发明专利

JPS62255204A PNEUMATIC TIRE 失效
公开(公告)号：JPS62255204A
公开(公告)日：1987-11-07
申请号：JP9920286
申请日：1986-04-28
申请人： BRIDGESTONE CORP
发明人： TSUKAMOTO TAKEHIRO , MOTOMURA KENICHI
IPC分类号： B60C11/11 , B60C11/04 , B60C11/12
摘要： PURPOSE:To improve the abrasion resistance of a tire having many sipings extended within the entire breadth of treads by making each siping have a shape bent in an angular form and sharpened toward the rotary direction of the tire so as to be symmetrical about the equator surface of the tire. CONSTITUTION:A heavy load pneumatic tire 11 has a plurality of main grooves 13 extending in a circumferential direction on the tread part 12 thereof, and many linear heavy sheetings 17 extending from one tread end 15 to the other tread end 16 are formed on land banks 14 at both sides of the main grooves 13. Each siping 17 is provided in parallel and apart at equal intervals in a circumferential direction. In this case, each heavy sheeting 17 is bent in an angular form at the equator surface 18 of a tire and so formed as to be linearly symmetrical about the equator surface 18. Also, the angular part of each heavy sheeting 17 is sharpened toward the rotary direction of the tire and made to cross the equator surface 18 at an angle (a) of 30 deg.-60 deg..

7. 发明专利

JPS6220702A PNEUMATIC RADIAL TYRE 失效
公开(公告)号：JPS6220702A
公开(公告)日：1987-01-29
申请号：JP15967085
申请日：1985-07-18
申请人： BRIDGESTONE CORP
发明人： MOTOMURA KENICHI , NIBU HIKARI
IPC分类号： B60C9/22 , B29D30/38 , B60C9/00 , B60C9/18 , B60C9/20
摘要： PURPOSE:To improve appearance and renewing ability prevailing during the final stage of wear, by a method wherein, in a heavy load tyre for buss and the like, a belt layer is formed with a main belt layer, wherein a metallic cord is used, and an auxiliary belt layer where cord selected from boron fibre, silicon carbide fibre is used. CONSTITUTION:A belt layer 5 is formed with a main belt layer 6 and an auxilia ry belt layer 7 located outside the main belt layer. The main belt layer 6 is formed by two main plies 6a, formed such that rubber-covered metallic cord is arranged at an angle of 30 deg. or less with the circumferential direction of a tyre, and a main ply 6b formed such that the cord is arranged at an angle of 70 deg. with the circumferential direction. An auxiliary belt layer 7 is formed by covering with rubber high strength fibre selected from boron fibre and silicon carbide fibre, and by two or less auxiliary plies 7a having maximum width W7 being 35-75% of a maximum width W6 of the main belt layer 6. This constitution improves durability of the belt layer and enables improvement of appearance and renewing ability prevailing during the final stage of wear.

8. 发明专利

JPS61257303A PNEUMATIC TIRE 失效
公开(公告)号：JPS61257303A
公开(公告)日：1986-11-14
申请号：JP9876485
申请日：1985-05-09
申请人： BRIDGESTONE CORP
发明人： MAMADA MAMORU , MOTOMURA KENICHI , OKAMOTO KEIZO
IPC分类号： B60C11/04 , B60C11/01 , B60C11/12
摘要： PURPOSE:To reduce the extent of wear in the center of a tread, by constituting it in setting up each thin nick, whose both ends are connected to main grooves, in each land part of a tread center part sandwiched between main grooves at the outermost side at the specified pitch, in case of the tread provided with more than two main grooves. CONSTITUTION:A tread 2 is divided into tread shoulders 5 and a tread center part 6 by plural numbers, for example, four main grooves 3. And, three land parts 6a-6c are formed in this tread part 6. Each nick 7 of about 0.3mm-1.5mm in thickness U, tilted at a tilt angle X of about 0-+ or -45 deg. to a tire turning axis O and of a circumferential pitch P of 5-15% in tread width is formed in these land parts 6a-6c so as connect three main grooves. With this constitution, wear in the tread center is prevented from occurring and, what is more, tire life against abrasion is improvable.

9. 发明专利

JPS61235204A PNEUMATIC TIRE 失效
公开(公告)号：JPS61235204A
公开(公告)日：1986-10-20
申请号：JP7810985
申请日：1985-04-12
申请人： BRIDGESTONE CORP
发明人： OGAWA HIROSHI , MOTOMURA KENICHI , YAMADA YUKIMASA , MAMATA MAMORU , NIBU HIKARI
IPC分类号： B60C11/01 , B60C11/04
摘要： PURPOSE:To prevent the partial wear of a pneumatic tire by partitioning the outermost shoulder rib among a number of ribs partitioned by broad main grooves that are extended in the circumferential direction into two land regions that are continuous in the axial direction through stepped area. CONSTITUTION:In a pneumatic tire in which a tread 1 is divided into at least three ribs 3 and 4 by at least two broad main grooves 2 that are extended in a zigzag along the circumferential direction of the tire, a shoulder rib 3 positioned at the outermost side of the tread 1 among the ribs is partitioned into at least two land regions 5 and 6 in the axial direction of the tire. In addition, a stepped area 10 that forms a step between these land regions 5 and 6 connects the adjacent land regions 5 and 6together that the inside end B of the outside land region 5 can be positioned low in the radial direction of the tire as compared with the outside end A of the inside land region 6. In this case, the width W5 of the land region 5 is set to 2 to 15% of the tread width T and the amount of step is set below 4% of the tread width T.

10. 发明专利

JPS61229603A PNEUMATIC TIRE 失效
公开(公告)号：JPS61229603A
公开(公告)日：1986-10-13
申请号：JP6747785
申请日：1985-04-03
申请人： BRIDGESTONE CORP
发明人： OGAWA HIROSHI , MOTOMURA KENICHI , YAMADA YUKIMASA , MAMATA MAMORU , NIBU HIKARI
IPC分类号： B60C11/00 , B60C11/01 , B60C11/04 , B60C11/12
摘要： PURPOSE:To reduce uneven abrasion of a tire in which the tread is divided into at least three ribs by main grooves extending in the circumferential direction of the tire, by sectioning each outside shoulder rib into at least two land sections having different height in the tire axial direction. CONSTITUTION:In a pneumatic tire in which the tread 1 is divided into at least two ribs 3, 4 by at least two main wide zigzag grooves 2 extending generally in the peripheral direction of the tire 1, the shoulder rib 3 positioned at each outermost side of the tread is sectioned into two land section areas 5, 6 in the axial direction. Further, the outer surface 5a of the outer land section area 5 is positioned lower, in the radial direction of the tire, than the prolonged line 6b of the outer surface 6a of the inner land area 6 between the adjacent land section areas 5, 6, as viewed in the cross-section of the tire. With this arrangement, the generation of local abrasion is effectively prevented in the vicinity of the outer end of the land section area 5 or the outer end of the shoulder rib 3.

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