-
21.发明专利
公开(公告)号：JPH10309906A
公开(公告)日：1998-11-24
申请号：JP15941098
申请日：1998-06-08
Applicant: BRIDGESTONE CORP
Inventor： SATO KIYOSHI , KADOTA KUNINOBU , SHIMADA TATSURO , KOSEKI HIROYUKI
Abstract: PROBLEM TO BE SOLVED: To improve the separation resistance of a belt and a carcass turned part by shifting the upper area part of the side wall part of a carcass line to the tire rotating directional inside, and protruding the lower area part to the outside. SOLUTION: A carcass line 1 is situated in the tire inner side from a carcass line 1' of natural equilibrated shape in the area of a tread part 5. In the upper area 7 of a side wall part extending from a tread grounding width end 4 to a tire maximum width position 6 in charge of a normal internal pressure, the carcass line 1 in at least a part of the upper area of the side wall part in charge of a minute pressure (5%) is situated on the tire outer side of the carcass line 1' with a curvature radius larger than the carcass line 1' of natural equilibrated form. In the lower area of the side wall extended from the position corresponding to the maximum width position 6 in the minute pressure charge to the contact with the flange of a rim, the carcass line 1 is situated on the tire inner side from the carcass line 1' of natural equilibrated form.
-
公开(公告)号：JPH04328003A
公开(公告)日：1992-11-17
申请号：JP12487491
申请日：1991-04-27
Applicant: BRIDGESTONE CORP
Inventor： SATO KIYOSHI , KONO YOSHIHIDE
Abstract: PURPOSE:To suppress the corrugation of a carcass layer and the undulation of the external surface of the side wall portion in the tire in which reinforcing elements are buried in reinforcing plies so as to elongate in parallel with the equatorial plane E as a whole and so as to curve in a wavy shape. CONSTITUTION:An reinforcing ply 36 is divided into two regions (38,39) and 40. The phase (or the wave length) of the reinforcing elements 37 in the region (38, 39) is determined so as to differ from the phase (or the wave length) of the reinforcing elements 37 in the region 40, so that the force acting on the carcass layer 21 is reduced by dispersing the forces, which is generated when these reinforcing elements 37 are elongated, in the circumferential direction or by cancelling them each other.
-
公开(公告)号：JPH02234805A
公开(公告)日：1990-09-18
申请号：JP5497889
申请日：1989-03-09
Applicant: BRIDGESTONE CORP
Inventor： SATO KIYOSHI , KONO YOSHIHIDE , KOSEKI HIROYUKI
Abstract: PURPOSE:To prevent separation of a transportation layer by forming a crown reinforce layer of a belt, which is arranged between a carcass and belt transportion layer, through orientation of specific cords, etc., in a certain direction, and by specifying the distance of the equator surface from the outer end in the width direction. CONSTITUTION:A pneumatic tire has transposition layers 1, 2 of belt reinforced by a number of cords or filaments intersecting with the equator pinched at an inclination angle of 10 deg.-40 deg. to the tire equator. A crown reinforce layer 3 is provided on the inside of these transposition layers 1, 2. In this crown reinforce layer 3, corrugated or zigzagged cords or filaments as reinforcing elements are oriented substantially in parallel with the equator. The distance of the equator surface from the width direction outer end of this crown reinforce layer 3 shall be set within the range 25-47.5% of the actual cord transposition area max. width in the transposition layers 1, 2.
-
公开(公告)号：JPH01202502A
公开(公告)日：1989-08-15
申请号：JP28107687
申请日：1987-11-09
Applicant: BRIDGESTONE CORP
Inventor： SATO KIYOSHI , KADOTA KUNINOBU , SHIMADA TATSURO , KOSEKI HIROYUKI
Abstract: PURPOSE:To improve the durability of a tire for bus and the like by mounting the tire onto a rim having narrower width than that of a standard rim and filling inner pressure of predetermined % that of regular level thereby specifying carcass profile of cross-section in radial direction under no-load state. CONSTITUTION:In a tire to be mounted on a rim narrower than a standard rim and filled inner pressure of 5% that of regular level while having maximum height H of carcass line C (hereafter, referred to carcass C) under no-load and rim width W, a balanced curve N passing through a contact point A be tween tangential lines m, m' at the widest point of the carcass C and cross points B, D between the carcass C and normals p, p' at points separated by a distance 0.45W (W represents rim width) from an equator face M is obtained. The profile of the carcass is set such that the distance (u) between the contact points E and A of the curve N and the tangential lines m, m', intervals (s), (t) between the curve N and the carcass C in the upper and lower regions of the sidewall satisfy the formulae I-III respectively. By such arrangement, durabil ity can be improved.
-
公开(公告)号：JPS63275410A
公开(公告)日：1988-11-14
申请号：JP10933887
申请日：1987-05-01
Applicant: BRIDGESTONE CORP
Inventor： IGARASHI TOSHIO , SUGAWARA TOSHIO , SATO KIYOSHI
Abstract: PURPOSE:To strengthen the periphery around bolt holes so as to increase fatigue resistance by providing the front section around bolt holes in a rim as well as a disc consisting of a wheel main body with residual compressive stress. CONSTITUTION:A wheel main body 11 includes a disc 12 and a rim 13 fixed on the outer circumference 12a of the disc 12. And the disc 12 includes a hub hole 16 loosely engaged with a hub 15 to be connected with an axle at its center section 12b as well as plural bolt holes 18 on the pitch circle 17 concentrical with the hub hole 16 at the outside of the hub hole 16. In this constitution, the front section 12c of the bolt holes 18 in the disc 12 is provided with a residual compressive area 20. And the residual compressive stress area 20 is established from a pitch circle 17 over to a concentric circle with a diameter D21 equivalent to that of 1.2 times as large as the diameter D17 of the pitch circle 17. This construction thereby strengthens the periphery of the bolt holes 18 for increasing fatigue resistance.
-
Patent Agency Ranking
公开(公告)号：JP2007237907A
公开(公告)日：2007-09-20
申请号：JP2006062751
申请日：2006-03-08
Applicant: Bridgestone Corp , 株式会社ブリヂストン
Inventor： SATO KIYOSHI
Abstract: PROBLEM TO BE SOLVED: To provide a means to raise temperature of hollow particles when a tire is damaged and internal pressure suddenly lowers. SOLUTION: This assembly body of the tire and a rim constituted by sealing a large number of the thermally expandable hollow particles made of a continuous phase of resin and closed cells under pressure in a tire air chamber partitioned by the tire and the rim by installing the tire on the rim has a groove extending at an inclination within 45° against at least an equatorial surface of the tire on a tread part of the tire and increases loss of rubber forming at least a bottom part of the groove more than loss of tread rubber out of the groove bottom part. COPYRIGHT: (C)2007,JPO&INPIT
Abstract translation: 要解决的问题：提供当轮胎损坏并且内部压力突然降低时中空颗粒的温度升高的方法。 解决方案：轮胎的组装体和由轮胎和轮辋分隔的轮胎气室中密封大量由树脂的连续相和压力下的闭孔的可热膨胀的中空颗粒构成的轮辋 通过将轮胎安装在轮辋上，具有在轮胎的胎面部分上相对于轮胎的至少一个赤道表面以45°倾斜的方式延伸的凹槽，并增加至少在凹槽的底部部分形成的损失的损失大于损失 的胎面橡胶从槽底部分出来。 版权所有（C）2007，JPO＆INPIT
-
公开(公告)号：JP2004306906A
公开(公告)日：2004-11-04
申请号：JP2003106476
申请日：2003-04-10
Applicant: Bridgestone Corp , 株式会社ブリヂストン
Inventor： SATO KIYOSHI
IPC: B60C11/11 , B60C11/04 , B60C11/117 , B60C11/12
Abstract: PROBLEM TO BE SOLVED: To provide a pneumatic tire for improving the entire drain properties of a tread pattern by optimizing the flow of water flowing into either main groove of main grooves in the peripheral direction and crossing grooves from a sipe. SOLUTION: The pneumatic tire is formed by arranging a pair of peripheral main grooves 2a, 2b along the peripheral direction of a tire while being located at both the sides of a pattern center C at a tread section 1, divides the tread section 1 into a central region 3 and shoulder regions 5a, 5b, and arranging a plurality of crossing main grooves 6 extended across the peripheral main grooves 2a, 2b, thus dividing and forming the tread section 1 into a number of blocks 7. The blocks 7 comprise: a one-end opening rill 9 that is open to a main groove 8 of one of the peripheral main grooves 2a, 2b, 2c, and the crossing main groove 6, is extended at a relatively small angle to the open main groove 8, and is terminated in the blocks 7; and an one-end opening sipe 10 that is open to the one-end opening rill 9, is extended at a relatively large angle to the peripheral direction of the tire, and is terminated in the blocks 7. COPYRIGHT: (C)2005,JPO&NCIPI
-
公开(公告)号：JP2003063213A
公开(公告)日：2003-03-05
申请号：JP2001253948
申请日：2001-08-24
Applicant: Bridgestone Corp , 株式会社ブリヂストン
Inventor： SATO KIYOSHI
CPC classification number: B60C11/13 , B60C2011/1338
Abstract: PROBLEM TO BE SOLVED: To provide a pneumatic tire capable of securing snow column shearing force and simultaneously improving draining performance. SOLUTION: A second small groove is formed on a groove wall of a lug groove along a substantially tire radial direction. Therefore, surface area of the groove wall of the lug groove can be increased and frictional force to snow on the groove wall can be increased. As a result, snow column shearing force can be increased. A first small groove 20 is formed in substantially parallel to tread on a groove wall of a main groove 12. Therefore, water flowing within the main groove 12 is straightened to reduce flow resistance. As a result, draining performance can be improved.
Abstract translation: 要解决的问题：提供一种能够确保雪柱剪切力并同时提高排水性能的充气轮胎。 解决方案：沿大致轮胎径向方向在横向花纹槽的槽壁上形成第二小槽。 因此，可以增加横向槽的槽壁的表面积，并且能够增加槽壁上的雪的摩擦力。 结果，雪列剪切力可以增加。 在主槽12的槽壁上形成大致平行于胎面的第一小槽20.因此，在主槽12内流动的水被拉直以降低流动阻力。 因此，可以提高排水性能。
-
公开(公告)号：JP2001071712A
公开(公告)日：2001-03-21
申请号：JP25322299
申请日：1999-09-07
Applicant: BRIDGESTONE CORP
Inventor： SATO KIYOSHI
Abstract: PROBLEM TO BE SOLVED: To suppress deterioration in grounding performance when a block land part is divided by a sipe extending in the tire axial direction. SOLUTION: A number of small holes 24 are formed in the vicinity of the center side end parts of the block land parts of small parts 22A, 22D when a block land part 18 is divided by a plurality of sipes 20, and the vicinities of these end parts are softened (compression rigidity is lowered). Even though the block land part 18 is inclined and deformed at the time of braking and driving, the vicinities of these end parts are easily grounded, and the grounding contact areas of the small land parts 22A, 22D can be enlarged more than the conventional cases. Therefore, friction between the tire and a road can be increased more than the conventional cases, and braking performance and driving performance can be improved.
-
公开(公告)号：JPH106719A
公开(公告)日：1998-01-13
申请号：JP7991197
申请日：1997-03-31
Applicant: BRIDGESTONE CORP
Inventor： SATO KIYOSHI , KADOTA KUNINOBU , SHIMADA TATSURO , KOSEKI HIROYUKI
Abstract: PROBLEM TO BE SOLVED: To further improve durability of a bead part and a belt part of a pneumatic tire for heavy load advantageously and stably. SOLUTION: When a tire in the self-standing state attached to a rim with the width smaller than a standard rim under no load before filling of internal pressure is filled to the regular prescribed internal pressure, a tire profile in the radial cross section is inflated outward in the tire radial direction over an entire region of a crown part from one end to the other end of the tire grounding width due to rimming which narrows the interval of a bead part whose foot width is vulcanized and molded wider in a mold. On the other hand, distortion distribution is made optimum which is generated inside the tire under deformation toward the inside of the tire axial direction at least at a part of an upper region 7 of a side wall part from the end of the tire grounding width to the tire maximum width position 6 after filled to the regular internal pressure, and the deformation extending outward in the tire axial direction in a lower region 9 of the side wall part from the tire maximum width position 6 after filling to the regular internal pressure to a contact point with a rim flange.
-
-
-
-
-
-
-
-
-
Search Results
38
records
(took 0.026 seconds)
