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21. 发明专利

JP2002308163A PROJECTION DRIVE TYPE RUBBER ROLLER 失效
公开(公告)号：JP2002308163A
公开(公告)日：2002-10-23
申请号：JP2001110414
申请日：2001-04-09
申请人： OHTSU TIRE & RUBBER CO LTD
发明人： UENO YOSHIRO
IPC分类号： B62D55/253
摘要： PROBLEM TO BE SOLVED: To apply a core-bar-less rubber crawler (projection drive type rubber crawler) to those for high load. SOLUTION: A rubber lug 5 to be disposed on a tread (outer circumferential face) of a rubber elastic body 2 has a land/sea ratio of the tread set to 20%-80% and the rubber lug 5 is so disposed as to be divided in the left and right.

22. 发明专利

JP2002293273A RUBBER-MADE TIRE FOR MOUNTING CRAWLER BELT, AND ITS MANUFACTURING METHOD 失效
公开(公告)号：JP2002293273A
公开(公告)日：2002-10-09
申请号：JP2001102751
申请日：2001-04-02
申请人： OHTSU TIRE & RUBBER CO LTD
发明人： MATSUMOTO KOICHI
IPC分类号： B62D55/02 , B29D30/30 , B62D55/104
摘要： PROBLEM TO BE SOLVED: To prevent the early abrasion of a part of a seat 17. SOLUTION: The seat 17 for reducing a frictional force is formed like a band, its longitudinal both ends are butted on each other, these both ends are sewed to provide a ring shape, and the seat 17 is cured and adhered to at least the outer surface of a shoulder part over the whole circumferential length in curing and molding a tire.

23. 发明专利

JP2002268563A ILLUMINATOR 失效
公开(公告)号：JP2002268563A
公开(公告)日：2002-09-20
申请号：JP2001062585
申请日：2001-03-06
申请人： OHTSU TIRE & RUBBER CO LTD
发明人： HANIYU ATSUSHI
IPC分类号： G02F1/13357 , F21S2/00 , F21V3/00 , G09F9/00
摘要： PROBLEM TO BE SOLVED: To prevent the sagging down of a diffusion plate and to prevent the degradation of light emission quality. SOLUTION: In this illuminator provided with a light source inside a casing 2 with an opening part and provided with the diffusion plate 5 for diffusing light emitted from the opening part, the light emitting surface 5a of the diffusion plate 5 is formed into a convex shape.

24. 发明专利

JP2002264616A PNEUMATIC TIRE FOR HEAVY LOAD 失效
公开(公告)号：JP2002264616A
公开(公告)日：2002-09-18
申请号：JP2001065533
申请日：2001-03-08
申请人： OHTSU TIRE & RUBBER CO LTD
发明人： NISHIMURA YUICHI
IPC分类号： B60C9/20 , B60C15/06
摘要： PROBLEM TO BE SOLVED: To provide a pneumatic tire for heavy load enhancing bead durability and driving stability. SOLUTION: The pneumatic tire for heavy load has a tread part 1 provided with a belt layer 4. Tread ply inserts 5 are provided on both sides of the belt layer 4 along the axial direction of the tire and a bead core 6 is provided in a bead part 3 extending from a sidewall part. A wound part 8 is provided which is formed by winding up a carcass layer 7 from the inside of the circumference of the bead core 6. A hard bead filler 9 is provided in contact with the bead core 6 between the wound part 8 and the carcass layer 7. A soft bead filler 10 is provided on the outside of the hard bead filler 9. The distance (a), along the radial direction of the tire, between the opposite ends of the tread insert 5 and the soft bead filler 10, the distance b, along the radial direction of the tire, between the end of the soft bead filler 10 and the hard bead filler 9, and the distance c from the end of the hard bead filler 9 to the center of the bead core 6 meet the relationship: a:b:c=2-4:2-5:2-.

25. 发明专利

JP2002226629A RUBBER COMPOSITION AND PNEUMATIC TIRE 失效
公开(公告)号：JP2002226629A
公开(公告)日：2002-08-14
申请号：JP2001021559
申请日：2001-01-30
申请人： OHTSU TIRE & RUBBER CO LTD
发明人： NAGAE AKINORI
IPC分类号： B60C1/00 , C08K3/04 , C08K3/06 , C08K5/40 , C08L7/00 , C08L9/06
摘要： PROBLEM TO BE SOLVED: To provide a rubber composition capable of realizing a high grip property and a driving stability and of maintaining those characteristics at a last stage of driving and provide a pneumatic tire produced from the same. SOLUTION: The rubber composition comprises 100 pts.wt. of a rubber component containing at least one of a natural rubber(NR) or a diene-based synthetic rubber and 0.2-2.0 pts.wt. of a sulfur component as a vulcanizing agent and 0.1-1.5 pts.wt. of tetrabenzyl tiurum disulfide as a vulcanizing promotor.

26. 发明专利

JP2002211455A ELASTIC CRAWLER 失效
公开(公告)号：JP2002211455A
公开(公告)日：2002-07-31
申请号：JP2001012425
申请日：2001-01-19
申请人： OHTSU TIRE & RUBBER CO LTD
发明人： UENO YOSHIRO
IPC分类号： B62D55/253
摘要： PROBLEM TO BE SOLVED: To solve problems that a coreless crawler, so to speak, is sometimes excessively deformed, causes damage such as cracks or chips, abnormal engagement release called as tooth skipping, or dewheeling when a driving protrusion is engaged with a driving pin of a driving wheel. SOLUTION: A first reinforcing member 14 is provided along a protruding shape of the driving protrusion 4. Therefore, the damage or driving failure of the driving protrusion 4 can be prevented.

27. 发明专利

JP2002145431A CORRECTION METHOD AND DEVICE IN BIAS OF BELT CONVEYOR 失效
公开(公告)号：JP2002145431A
公开(公告)日：2002-05-22
申请号：JP2000346977
申请日：2000-11-14
申请人： OHTSU TIRE & RUBBER CO LTD
发明人： SHIMIZU YOSHINOBU
IPC分类号： B65G15/64
摘要： PROBLEM TO BE SOLVED: To solve problems in a belt conveyor wherein a belt is biased by the driving of the belt and in the case of leaving it without a countermeasure, the belt is removed from a roller and a width end (lug part) of the belt is rubbed with a flange or the like of the roller and is easy damaged. SOLUTION: In the case where a bias of the belt 3 is generated, an induction roller 13 is changed the direction making use of a sensor 10 or 11 to be pushed therewith and the bias of the belt 3 can be corrected by a rotation action of this induction roller 13. A simplification and a compact size of a structure are realized and a certain correction can be automatically carried out against the bias of the belt 3.

28. 发明专利

JP2002119066A INVERTER AND LIGHTING SYSTEM PROVIDED THEREWITH 失效
公开(公告)号：JP2002119066A
公开(公告)日：2002-04-19
申请号：JP2000309427
申请日：2000-10-10
申请人： OHTSU TIRE & RUBBER CO LTD
发明人： ITO TAKESHI , SHIRAKAWA KAZUNORI
IPC分类号： G02F1/1335 , G02F1/133 , G02F1/13357 , H02M7/48 , H02M7/493 , H05B41/24
摘要： PROBLEM TO BE SOLVED: To improve lighting characteristics and thus prevent distortion in oscillation waveform and heating even if a high output is demanded. SOLUTION: An inverter produces alternating currents by resonance between a resonance capacitor and a transformer using switching elements and increases voltage by the transformer. The resonance portion of the inverter is provided with a phase adjustment portion for reducing the phase difference between the output alternating current of the inverter and the output alternating-current voltage of the inverter, and the phase adjustment portion has an electromagnetic coil and a capacitor for adjustment. These elements are so set that the above phase difference is substantially equal to zero.

29. 发明专利

JP2002114870A RUBBER COMPOSITION AND PNEUMATIC TIRE 失效
公开(公告)号：JP2002114870A
公开(公告)日：2002-04-16
申请号：JP2000306276
申请日：2000-10-05
申请人： OHTSU TIRE & RUBBER CO LTD
发明人： SARASHI HIROTAKA
IPC分类号： B60C1/00 , B60C5/14 , C08K3/34 , C08L9/00
摘要： PROBLEM TO BE SOLVED: To provide a rubber composition having air impermeability and suppressed in production cost low. SOLUTION: This rubber composition comprises 100 pts.wt. of a diene-based rubber and 5-60 pts.wt. of bentonite as the filler.

30. 发明专利

JP2002097304A TIRE TREAD RUBBER COMPOSITION 失效
公开(公告)号：JP2002097304A
公开(公告)日：2002-04-02
申请号：JP2000286622
申请日：2000-09-21
申请人： OHTSU TIRE & RUBBER CO LTD
发明人： OTSUKI HIROTOSHI
IPC分类号： B60C1/00 , C08K3/04 , C08K3/22 , C08K3/34 , C08K3/36 , C08K5/09 , C08K5/098 , C08L7/00 , C08L9/00
摘要： PROBLEM TO BE SOLVED: To provide a tire tread rubber composition capable of securing abrasion resistance while keeping operational performance on the ice in a high level, when the rubber composition is used for tread parts of a pneumatic tire. SOLUTION: This tire tread rubber composition contains 15-40 pts.wt. of carbon black and 20-60 pts.wt. of precipitated silica based on 100 pts.wt. of a diene-based rubber containing 40-70 pts.wt. of a NR(natural rubber), wherein the carbon black has a nitrogen adsorption specific surface area of 100-165 m2/g and a DBP(dibutyl phthalate) absorption of 90-130 ml/100 g, the precipitated silica has a BET(Brunauer-Emmett-Teller) specific surface area of 150-200 m2/g, the total amount of the carbon black and the precipitated silica is 40-90 pts.wt., and a weight ratio of the carbon black to the precipitated silica is 0.25-1.0.

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