WO2005018961A1 - タイヤ/ホイール組立体 - Google Patents
タイヤ/ホイール組立体 Download PDFInfo
- Publication number
- WO2005018961A1 WO2005018961A1 PCT/JP2004/007950 JP2004007950W WO2005018961A1 WO 2005018961 A1 WO2005018961 A1 WO 2005018961A1 JP 2004007950 W JP2004007950 W JP 2004007950W WO 2005018961 A1 WO2005018961 A1 WO 2005018961A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- tire
- wheel assembly
- run
- holding groove
- flat support
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
- B60C9/02—Carcasses
- B60C9/14—Carcasses built-up with sheets, webs, or films of homogeneous material, e.g. synthetics, sheet metal, rubber
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C17/00—Tyres characterised by means enabling restricted operation in damaged or deflated condition; Accessories therefor
- B60C17/04—Tyres characterised by means enabling restricted operation in damaged or deflated condition; Accessories therefor utilising additional non-inflatable supports which become load-supporting in emergency
- B60C17/047—Tyres characterised by means enabling restricted operation in damaged or deflated condition; Accessories therefor utilising additional non-inflatable supports which become load-supporting in emergency comprising circumferential ribs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C17/00—Tyres characterised by means enabling restricted operation in damaged or deflated condition; Accessories therefor
- B60C17/04—Tyres characterised by means enabling restricted operation in damaged or deflated condition; Accessories therefor utilising additional non-inflatable supports which become load-supporting in emergency
- B60C17/048—Tyres characterised by means enabling restricted operation in damaged or deflated condition; Accessories therefor utilising additional non-inflatable supports which become load-supporting in emergency comprising transverse ribs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C17/00—Tyres characterised by means enabling restricted operation in damaged or deflated condition; Accessories therefor
- B60C17/04—Tyres characterised by means enabling restricted operation in damaged or deflated condition; Accessories therefor utilising additional non-inflatable supports which become load-supporting in emergency
- B60C17/06—Tyres characterised by means enabling restricted operation in damaged or deflated condition; Accessories therefor utilising additional non-inflatable supports which become load-supporting in emergency resilient
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C17/00—Tyres characterised by means enabling restricted operation in damaged or deflated condition; Accessories therefor
- B60C17/10—Internal lubrication
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
- B60C9/02—Carcasses
- B60C9/04—Carcasses the reinforcing cords of each carcass ply arranged in a substantially parallel relationship
- B60C9/08—Carcasses the reinforcing cords of each carcass ply arranged in a substantially parallel relationship the cords extend transversely from bead to bead, i.e. radial ply
- B60C9/09—Carcasses the reinforcing cords of each carcass ply arranged in a substantially parallel relationship the cords extend transversely from bead to bead, i.e. radial ply combined with other carcass plies having cords extending diagonally from bead to bead, i.e. combined radial ply and bias angle ply
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
- B60C9/02—Carcasses
- B60C9/12—Carcasses built-up with rubberised layers of discrete fibres or filaments
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T152/00—Resilient tires and wheels
- Y10T152/10—Tires, resilient
- Y10T152/10495—Pneumatic tire or inner tube
- Y10T152/10522—Multiple chamber
- Y10T152/10531—Cylinder and piston
- Y10T152/1054—Mutually free walls
Definitions
- the present invention relates to a tire / wheel assembly, and more particularly, to a tire Z wheel assembly with improved run flat durability.
- Patent Document 1 involves mounting a core on the rim inside the cavity of a pneumatic tire assembled with a rim, and supporting the punctured tire with the core. This makes it possible to run flat.
- This run-flat support uses an annular body that is coaxial with the rim and is mounted concentrically on the rim, so that there is virtually no modification to the existing wheel / rim configuration. It can be used as is, without adding, so it can be accepted without significant disruption to the market.
- the tire Z wheel assembly (wheel) runs flat while the inner surface of the tire having reduced internal pressure is supported by the outer peripheral surface of the run flat support.
- the contact surface between the inner surface of the tire and the support for the run flat generates heat due to friction and local pressure, and is gradually damaged as the run flat travel distance progresses, and eventually a satisfactory run flat travel becomes impossible. Will be possible.
- Patent Document 2 proposes to provide a lubricant filling tank inside the shell of the run flat support.
- it was necessary to fill the tank with a considerable amount of liquid lubricant so an increase in weight was unavoidable, and it was not necessarily a great contribution to run-flat durability.
- the tank is mounted directly inside the shell, a robust and complicated mounting structure that prevents the tank from falling off during run-flat driving must be used, which also increases the weight and costs. .
- liquid lubricant flows in the tank during running and causes a loss of balance. Therefore, there is an inconvenience that the driving stability may be deteriorated.
- Patent Document 1 Japanese Patent Application Laid-Open No. 10-297226
- Patent Document 2 Japanese Unexamined Patent Publication No. 2001-163020
- An object of the present invention is to provide a tire / wheel assembly that has a simple structure and further improves run flat durability.
- the tire / wheel assembly of the present invention that achieves the above object has the following configuration (1)-(5).
- a lubricant holding groove is provided on the inner peripheral surface of the pneumatic tire so as to face at least the top of the run flat support. Without increasing the weight and complicating the mounting structure as compared to the case where the lubrication of the holding groove can improve the run-flat durability of the tire / wheel assembly. .
- the lubricant since the lubricant is held at a position facing the top of the run flat support on the inner peripheral surface of the pneumatic tire, the lubricant is located at a position other than the position facing the top of the run flat support due to centrifugal force during rotation of the tire. It can be reliably lubricated without moving to Has an effect.
- FIG. 1 is a meridian sectional view showing a main part of a tire Z wheel assembly according to an embodiment of the present invention.
- FIG. 2 is a partial perspective view showing an inner surface of a pneumatic tire incorporated in the tire Z wheel assembly of FIG. 1.
- FIG. 3 is a meridional cross-sectional view illustrating the vicinity of a holding groove of a pneumatic tire incorporated in the tire / wheel assembly of the present invention.
- FIG. 4 is a meridian sectional view showing another example near the holding groove of the pneumatic tire incorporated in the tire / wheel assembly of the present invention.
- the type of the pneumatic tire is not particularly limited, and may be a radial tire or a bias tire. Further, any of tires for passenger cars, tires for light trucks, tires for heavy loads, and the like may be used. And preferably a passenger car And a radial tire.
- the run flat support can be mounted without substantially modifying an existing rim, and has a function of supporting the inner surface of the pneumatic tire during run flat running.
- an annular shell and an elastic ring are mainly used.
- the annular shell forms a continuous support surface for supporting the punctured tire on the outer peripheral side (outer diameter side), and the inner peripheral side (inner diameter side) opens in a bifurcated manner with the left and right side walls as legs. Shape the legs.
- the support surface on the outer peripheral side is preferably formed so that the shape in a cross section orthogonal to the circumferential direction is a curved surface convex toward the outer diameter side.
- the number of protrusions on the outer peripheral side of the annular shell may be one, or may be two or more. However, when the number of protrusions is plural, the load supported during run flat traveling is dispersed to the plurality of protrusions, so that the durability of the annular shell can be improved as a whole.
- the elastic rings are respectively attached to the ends of the bifurcated legs on the inner diameter side of the annular shell, and support the annular shell by abutting on the left and right rim sheets.
- the elastic ring is made of rubber or elastic resin, and reduces shocks and vibrations received by the annular shell from a punctured tire, and also prevents slippage on the rim sheet to stably support the annular shell.
- FIG. 1 is a tire width direction sectional view (meridian sectional view) showing a main part of a tire / wheel assembly (wheel) according to an embodiment of the present invention.
- [0015] 1 is a rim on the outer periphery of the wheel, 2 is a pneumatic tire, and 3 is a run flat support.
- the rim 1, the pneumatic tire 2, and the run flat support 3 are coaxially formed in a ring around a rotation axis of a wheel (not shown).
- the run flat support 3 is composed of an annular shell 4 formed of a rigid material such as metal or resin, and an elastic ring 5 also formed of an elastic material such as hard rubber or elastic resin. .
- the annular shell 4 is formed so that tops 4a and 4b formed of two convex curved surfaces are arranged on the outer peripheral side in the tire width direction, and both inner side walls of the annular shell 4 are formed as legs 6 and 6, respectively. The legs are bifurcated, and elastic rings 5 and 5 are attached to their ends.
- the pneumatic tire 2 has a carcass layer 7 having a radial structure on the inside, and a belt layer 9 made of a steel cord or the like is arranged on an outer peripheral side of the carcass layer 7 at the tread portion 8.
- holding grooves 10 and 10 holding a pair of left and right lubricants L are formed on the inner peripheral surface of the pneumatic tire 2.
- the left and right holding grooves 10, 10 are arranged to face the tops 4a, 4b of the run flat support 3, respectively.
- the holding grooves 10 may be intermittent or continuous in the tire circumferential direction.
- the lubricant L held in the holding groove 10 is not particularly limited as long as it has high viscosity and low fluidity.
- those containing grease or silicone oil as a main component can be preferably used.
- the holding groove 10 on the inner peripheral surface is supported by the tops 4a and 4b of the run flat support 3. Then, run flat. Accordingly, the distance between the pneumatic tire 2 and the run-flat support 3 is lubricated by the lubricant L in the holding groove 10 to suppress wear between the pneumatic tires 2 and the run-flat. Can be.
- the lubricant L tends to flow to the central portion in the width direction having a large outer diameter on the inner peripheral surface of the pneumatic tire.
- the lubricant L in the tire / wheel assembly of the present invention is held in the holding groove 10 in the limited space, the flow of the lubricant L which tends to move to the center in the width direction is suppressed. Is done. Therefore, even when the tire is rotating, the lubricant L is restrained at the portions corresponding to the tops 4a and 4b of the run flat support 3 and always lubricates between the pneumatic tire 2 and the run flat support 3. As a result, the run flat durability of the tire / wheel assembly is further improved.
- the holding groove for holding the lubricant may be provided at least at a position facing the top of the run flat support.
- the groove depth d of the holding groove is preferably in the range of 0.5 to 2 mm. If the groove depth d is smaller than 0.5 mm, it becomes difficult to hold the lubricant in the holding groove against the centrifugal force. Further, when the groove depth d is more than 2 mm, stress is concentrated on the holding grooves, which is not preferable because the durability of the pneumatic tire tends to be impaired. When the groove depth d is particularly increased (for example, 11 to 13 mm), as shown in FIG.
- the fiber between the carcass layer 7 and the inner liner 11 in the area corresponding to the holding groove 10 It is advisable to insert a reinforcing layer 12 or a reinforcing rubber layer such as hard rubber.
- the reinforcing cord of the fiber reinforcing layer 12 is not particularly limited as long as it has a reinforcing function, and for example, an organic fiber cord / steel cord can be used.
- the reinforcing cord of the fiber reinforcing layer 12 should be arranged at 45 ° to 90 ° with respect to the tire circumferential direction. With such a cord angle, irregularities due to the fiber cords are formed at the bottom of the groove where the holding groove 10 is merely reinforced, so that the flow of the lubricant L can be suppressed.
- the widths w and w ′ per one side should be in the range of 5 to 10 mm, respectively, from the position facing the center C in the width direction of the top of the run flat support. refer graph1) . If the width w, w 'per side is smaller than 5 mm, insufficient lubrication may occur. On the other hand, if it is larger than 1 Omm, it becomes difficult to contain the lubricant against the centrifugal force.
- a large number of linear and / or point-like projections 10 a are provided in the holding groove 10. It is good.
- the flow of the lubricant L can be suppressed, so that a better lubrication action can be performed.
- the processing method of the holding groove is not particularly limited.
- a convex portion is provided on the outer periphery of the vulcanizing bladder and the bladder is pressed against the inner peripheral surface of the unvulcanized tire at the time of vulcanization, a force or a force is applied. It may be post-processed with a fin or the like.
- a strip material for a belt cover around the center of the outer peripheral surface of the belt layer in a tire circumferential direction to a width of 10 to 20 mm, a depression is formed on the inner peripheral surface of the tire corresponding to both sides of the wound portion. It may be something to do.
- the tire / wheel assembly of the present invention can be used in the tire industry, and is effectively used as a tire / wheel assembly capable of run-flat running in the automobile industry. Chino.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Tires In General (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112004001521T DE112004001521T5 (de) | 2003-08-21 | 2004-06-08 | Reifen/Radanordnung |
US10/567,093 US20080295938A1 (en) | 2003-08-21 | 2004-06-08 | Tire/Wheel Assembly |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003-297300 | 2003-08-21 | ||
JP2003297300A JP4411904B2 (ja) | 2003-08-21 | 2003-08-21 | タイヤ/ホイール組立体 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005018961A1 true WO2005018961A1 (ja) | 2005-03-03 |
Family
ID=34213638
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/007950 WO2005018961A1 (ja) | 2003-08-21 | 2004-06-08 | タイヤ/ホイール組立体 |
Country Status (4)
Country | Link |
---|---|
US (1) | US20080295938A1 (ja) |
JP (1) | JP4411904B2 (ja) |
DE (1) | DE112004001521T5 (ja) |
WO (1) | WO2005018961A1 (ja) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005349889A (ja) * | 2004-06-09 | 2005-12-22 | Bridgestone Corp | タイヤ・リム・中子組立体、空気入りタイヤへの潤滑剤塗布方法、及び、タイヤ・リム・中子組立体の製造方法 |
JP4783135B2 (ja) * | 2005-12-13 | 2011-09-28 | 住友ゴム工業株式会社 | 制音具付空気入りタイヤ |
JP5297286B2 (ja) * | 2009-07-08 | 2013-09-25 | 住友ゴム工業株式会社 | ランフラットタイヤ組立体及びそれに用いられるサポートリング |
US8726959B2 (en) | 2011-05-12 | 2014-05-20 | Von Jackson | Tire support |
DE102011087936B3 (de) * | 2011-12-07 | 2013-02-21 | ThyssenKrupp Carbon Components GmbH | Rad aus Faserverbundwerkstoffen und Verfahren zur Herstellung |
JP7057232B2 (ja) * | 2018-06-20 | 2022-04-19 | 株式会社ブリヂストン | 建設車両用タイヤ |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59145610A (ja) * | 1983-02-09 | 1984-08-21 | Kawasaki Heavy Ind Ltd | タイヤトレツドを保護する補助輪内蔵の気体入りタイヤ車輪 |
JPH06270617A (ja) * | 1993-03-19 | 1994-09-27 | Bridgestone Corp | 環状中子組立体を有する車輪 |
JPH106721A (ja) * | 1996-03-19 | 1998-01-13 | Michelin & Cie | 可撓性エラストマー材料からなるタイヤ用安全支持体 |
JP2001524049A (ja) * | 1997-04-18 | 2001-11-27 | コンパニー ゼネラール デ エタブリッスマン ミシュラン−ミシュラン エ コムパニー | 横断方向振動信号を発生する安全インサートおよび安全インサート上でのタイヤの支持を検出する装置 |
JP2004181989A (ja) * | 2002-11-29 | 2004-07-02 | Bridgestone Corp | 支持体および空気入りランフラットタイヤ |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1359466A (en) * | 1970-06-20 | 1974-07-10 | Dunlop Holdings Ltd | Pneumatic tyres |
US4036765A (en) * | 1975-06-11 | 1977-07-19 | The Goodyear Tire & Rubber Company | Run-flat tire lubricant |
JPS6226101A (ja) * | 1985-07-26 | 1987-02-04 | Yokohama Rubber Co Ltd:The | 高速走行用空気入りタイヤ |
DE19745409C2 (de) * | 1997-10-15 | 2002-06-20 | Continental Ag | Fahrzeugrad mit einem Notlaufstützkörper |
-
2003
- 2003-08-21 JP JP2003297300A patent/JP4411904B2/ja not_active Expired - Fee Related
-
2004
- 2004-06-08 WO PCT/JP2004/007950 patent/WO2005018961A1/ja active Application Filing
- 2004-06-08 DE DE112004001521T patent/DE112004001521T5/de not_active Withdrawn
- 2004-06-08 US US10/567,093 patent/US20080295938A1/en not_active Abandoned
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59145610A (ja) * | 1983-02-09 | 1984-08-21 | Kawasaki Heavy Ind Ltd | タイヤトレツドを保護する補助輪内蔵の気体入りタイヤ車輪 |
JPH06270617A (ja) * | 1993-03-19 | 1994-09-27 | Bridgestone Corp | 環状中子組立体を有する車輪 |
JPH106721A (ja) * | 1996-03-19 | 1998-01-13 | Michelin & Cie | 可撓性エラストマー材料からなるタイヤ用安全支持体 |
JP2001524049A (ja) * | 1997-04-18 | 2001-11-27 | コンパニー ゼネラール デ エタブリッスマン ミシュラン−ミシュラン エ コムパニー | 横断方向振動信号を発生する安全インサートおよび安全インサート上でのタイヤの支持を検出する装置 |
JP2004181989A (ja) * | 2002-11-29 | 2004-07-02 | Bridgestone Corp | 支持体および空気入りランフラットタイヤ |
Also Published As
Publication number | Publication date |
---|---|
JP4411904B2 (ja) | 2010-02-10 |
DE112004001521T5 (de) | 2006-10-19 |
US20080295938A1 (en) | 2008-12-04 |
JP2005067301A (ja) | 2005-03-17 |
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