公开(公告)号：JPH04358905A

公开(公告)日：1992-12-11

申请号：JP13408891

申请日：1991-06-05

Applicant: BRIDGESTONE CORP

Inventor： TANAKA MAKOTO

IPC: B60C9/08 ,  B60C9/18 ,  B60C9/28 ,  B61B13/00

Abstract: PURPOSE:To reduce shearing deformation between layers around a belt end which is generated at the time of inflating or rotating under a load condition. CONSTITUTION:The first belt 26 is buried near the third ply 18 inside the tread 22 of a guide wheel pneumatic radial tire for a track traveling vehicle 10. The second belt 28 which is provided with a layer crossing with the first belt 26 is buried at the outside in the diametrical direction of the first belt 26 along the first belt 26 to reinforce the tread 22. Besides, the radius of curvature R2 in the diametrical direction of first belt 26 and the second belt 28 is set at 0.7-1.2 times of the radius R1 of curvature of a tire crown part 22A.

公开(公告)号：JPH0443104A

公开(公告)日：1992-02-13

申请号：JP15188990

申请日：1990-06-11

Applicant: BRIDGESTONE CORP

Inventor： TANAKA MAKOTO

IPC: B60C11/04

Abstract: PURPOSE:To relax the side force so as to sufficiently restrain the leaver ware abrasion by enlarging the side force of a rib edge of a main groove and the travel to the ground pressure by striations formed substantially parallel to the main groove and optimizing the amplitude and the peripheral pitch of the main groove. CONSTITUTION:Four main grooves 14 extended in zigzag along the peripheral direction of a tire are formed on a tread 12 of the tire 10. Further, zigzag peripheral ribs 16 divided in the cross direction of the tire by the main grooves 14 are formed on the tread 12. In this case, the half pitch P/2 of the main groove 14 is 6-12mm and the amplitude F of one side rib edge 18 of the main groove 14 is 1.5-4.5mm. Further, in a position of a distance 3-7mm from a rib edge 18 of the main groove 14 to the center side of the rib 16, striations 20 are formed parallel to the main grooves 14 along the main grooves 14. In this case, the width C of the striations 20 is 0.5-2mm. Thus, the rib edges 18 are moved in the direction of working the side force and the ground pressure so as to relax the side force.

公开(公告)号：JPS63149205A

公开(公告)日：1988-06-22

申请号：JP29541186

申请日：1986-12-10

Applicant: BRIDGESTONE CORP

Inventor： TANAKA MAKOTO ,  MIYAMOTO KENJI ,  SHIMADA NORIHIRO

IPC: B60C11/12

Abstract: PURPOSE:To reduce a ply stair and improve uneven wear resisting performance by forming a plurality of cut-outs on the surface of a tread and setting the direction of cutting these cut-outs and the cut-out angle to meet specified requirements for the equator surface of tire. CONSTITUTION:A tire 21 is provided with a tread 22 extending circumferentially and a belt 25 having a plurality of belt layers 25a-25d consisting of steel cords 24. And the tread 22 is formed on the surface with a plurality of main grooves 27 extending circumferentially and ribs 28 defined by the main grooves 27. In the above construction, the rib 28 is formed with a plurality of siper (cut-outs) 30. And the direction of cut-out 30 crosses slantly the direction of steel cord 24a in the outer-most belt layer 25a nearest to the tread 22 on the equator surface E of tire. Also, the cut-out angle theta30 of the direction of cutting out the siper 30 made to the equator surface E of tire is set to 5-85 degrees.

公开(公告)号：JPS604404A

公开(公告)日：1985-01-10

申请号：JP11290083

申请日：1983-06-24

Applicant: BRIDGESTONE CORP

Inventor： TANAKA MAKOTO

IPC: B60C7/00 ,  B60C7/10 ,  B60C9/18 ,  B60C9/20

Abstract: PURPOSE:To greatly enhance durability, by a method wherein reinforcement of a crown part by belts is so provided as to permit the crown part to be elongated in a predetermined range, in a wheel with a rubber tire filled with an elastic material such as polyurethane. CONSTITUTION:A carcass 2 comprising carcass plies extended between a pair of bead cores 5, 5 is provided to reinforce a body of the tire together with the belts 4 consisting of two rubberized metallic cord layers surrounding the crown part 3 over the entire width of the part 3. The hollow interior of the tire is filled with an elastic material comprising polyurethane as a main constituent. In this case, the reinforcement of the crown part by the belts 4 is so provided that the pressure dependency of the expansion of the outside diameter at room temperature by the filling of compressed air into the tire fitted to a rim permits the crown part 3 to be elongated in the range of 12.5-3.5kg/cm per 0.5% of initial growth of the outside diameter. The two belts 4 are so provided that the cords are arranged symmetrically on lelt and right sides of the crown part 3 with an intersecting angle of 24-48 deg..

公开(公告)号：JP2008279674A

公开(公告)日：2008-11-20

申请号：JP2007126364

申请日：2007-05-11

Applicant: Bridgestone Corp ,  株式会社ブリヂストン

Inventor： TANAKA MAKOTO

IPC: B29D30/30

Abstract: PROBLEM TO BE SOLVED: To provide a movement control device of a conveyor capable of positively stopping an approach conveyor at a position for winding a winding drum.
SOLUTION: A distance sensor 21 is installed above the approach conveyor 12, and the distance L between the distance sensor 21 and the winding drum 10 is measured by synchronizing the distance sensor 21 with the conveyor 12 to move it in the winding drum 10. The distance between the tip end 12a of the conveyor 12 and the winding drum 10 is calculated by using the distance L. The conveyor 12 is moved in the winding drum 10 based on the distance X, and the conveyor 12 is stopped when the distance X becomes the thickness of a tire member 11 mounted on the conveyor 12.
COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：提供一种输送机的运动控制装置，其能够在用于卷绕卷筒的位置处肯定地停止接近传送带。

解决方案：距离传感器21安装在接近传送带12上方，距离传感器21和卷绕鼓10之间的距离L通过距离传感器21与传送器12同步来测量，以便在卷绕鼓 通过使用距离L计算输送机12的末端12a和卷绕鼓10之间的距离。输送机12基于距离X在卷绕滚筒10中移动，并且当输送机12停止时 距离X成为安装在传送带12上的轮胎部件11的厚度。版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2003191721A

公开(公告)日：2003-07-09

申请号：JP2001398037

申请日：2001-12-27

Applicant: BRIDGESTONE CORP

Inventor： TANAKA MAKOTO

IPC: B60C15/00 ,  B60C9/06

Abstract: PROBLEM TO BE SOLVED: To prevent an expansion trouble in a tread. SOLUTION: A venting hole 44 for an air vent penetrated through the fifth ply 22 and the sixth ply 24 is formed in a side part of a pneumatic tire 10 constituted as bias structure provided with no breaker. Air inside the tread enfolded by some reasons is discharged to an outside via cord insides of the fifth ply 22 and the sixth ply 24, clearances around them, and the venting hole 44, so as to prevent the expansion trouble in the tread 32. COPYRIGHT: (C)2003,JPO

公开(公告)号：JPH10217717A

公开(公告)日：1998-08-18

申请号：JP2639797

申请日：1997-02-10

Applicant: BRIDGESTONE CORP

Inventor： TANAKA MAKOTO

IPC: B60C11/01

Abstract: PROBLEM TO BE SOLVED: To increase durability against separation of a belt-shaped rubber on which protection projected stripes are formed, at the buttress part of a tire. SOLUTION: The tire is provided with a radial carcass 1 and belts 2, a tread rubber 3 arranged on the outer peripheral side of the belts 2, a side wall rubber 4 arranged outside the radial carcass 1, and a belt-shaped rubber 5 arranged from the tread rubber 3 to the side wall rubber 4. Further, plural protection projected stripes projected from the outside of the tire to continue in the circumferential direction, are provided on the belt-shaped rubber 5, and an outer contour line between the protection projected stripes 6a, 6b in a plane of the tire-cross-section is formed into a recessed shape.

公开(公告)号：JPH0769009A

公开(公告)日：1995-03-14

申请号：JP24066193

申请日：1993-09-01

Applicant: BRIDGESTONE CORP

Inventor： TANAKA MAKOTO

IPC: B60C13/00

Abstract: PURPOSE:To suppress separation in the vicinity of a boundary face of a steel reinforcing element due to thinning of coating rubber and heat without causing disturbance of the steel reinforcing elements in the rolling process of a carcass layer. CONSTITUTION:A side cover rubber layer 16 having the same blending as coating rubber of a carcass layer 12 is arranged between a side rubber 14 and a carcass 12 in a side wall section of the carcass 12. With this constitution, it is possible to suppress separation due to thinning of coating rubber and heat.

公开(公告)号：JPH0524411A

公开(公告)日：1993-02-02

申请号：JP18609291

申请日：1991-07-25

Applicant: BRIDGESTONE CORP

Inventor： TANAKA MAKOTO

IPC: B60C9/18

Abstract: PURPOSE:To reduce the ply steer of a main wheel pneumatic radial tire for track traveling vehicle. CONSTITUTION:A reinforcement belt layer 14 is disposed at the outer layer side of the crown part of a carcass 12 in a main wheel pneumatic radial tire for trace traveling vehicle 10. The belt layer 14 is constituted by three belt layers 18, 20, 22. A belt layer 26 for ply steer reduction is provided at the outside of the belt layer 22. The cord of the belt layer 26 for ply steer reduction and the cord of the outermost layer 22 in the reinforcement belt layer 14 are inclined in an opposite direction to an equator surface 16, and the inclination angle theta 4 to the equator surface of the cord of the belt layer 26 for ply steer reduction is set 16-74 degree.

公开(公告)号：JPH058608A

公开(公告)日：1993-01-19

申请号：JP16419291

申请日：1991-07-04

Applicant: BRIDGESTONE CORP

Inventor： TANAKA MAKOTO

IPC: B60C9/08 ,  B60C9/18 ,  B60C11/00 ,  B60C11/01

Abstract: PURPOSE:To prevent an advance of the edge wearing-off of a cap tread to the inner side in the tire width direction, as well as to suppress the generation of a partial friction by reducing the cornering force. CONSTITUTION:The carcass 12 of a main wheel pneumatic radial tire 10 for vehicle running on rails is made into one sheet or more, and its belt layer 14 is composed of three belt layers 18, 20, and 22 which consist of cords facing in the direction crossing the tire equator surface 16. And the innermost layer 18 of the belt layers is made in a hollow structure. A tread 24 is composed in a double-layer structure of a cap tread 26 and a base tread 28. And to the tread 24, small grooves 30 are formed extending linearly in the tire circumferential direction, at the positions separated 2mm or more to the center side in the tire radius direction, and 5mm or more to the outer side in the tire radius direction.