WO2001070519A1 - Pneumatique - Google Patents

Pneumatique Download PDF

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Publication number
WO2001070519A1
WO2001070519A1 PCT/JP2000/001661 JP0001661W WO0170519A1 WO 2001070519 A1 WO2001070519 A1 WO 2001070519A1 JP 0001661 W JP0001661 W JP 0001661W WO 0170519 A1 WO0170519 A1 WO 0170519A1
Authority
WO
WIPO (PCT)
Prior art keywords
tread
tire
air
rubber blocks
rubber
Prior art date
Application number
PCT/JP2000/001661
Other languages
English (en)
Japanese (ja)
Inventor
Hiroyoshi Takahashi
Original Assignee
Hiroyoshi Takahashi
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hiroyoshi Takahashi filed Critical Hiroyoshi Takahashi
Priority to PCT/JP2000/001661 priority Critical patent/WO2001070519A1/fr
Publication of WO2001070519A1 publication Critical patent/WO2001070519A1/fr

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
    • B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
    • B60C11/14—Anti-skid inserts, e.g. vulcanised into the tread band
    • B60C11/16—Anti-skid inserts, e.g. vulcanised into the tread band of plug form, e.g. made from metal, textile
    • B60C11/1606—Anti-skid inserts, e.g. vulcanised into the tread band of plug form, e.g. made from metal, textile retractable plug
    • B60C11/1612—Anti-skid inserts, e.g. vulcanised into the tread band of plug form, e.g. made from metal, textile retractable plug actuated by fluid, e.g. using fluid pressure difference
    • 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
    • B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
    • B60C11/14—Anti-skid inserts, e.g. vulcanised into the tread band
    • B60C11/18—Anti-skid inserts, e.g. vulcanised into the tread band of strip form, e.g. metallic combs, rubber strips of different wear resistance

Definitions

  • the present invention relates to a pneumatic tire for a vehicle that is particularly suitable for running on icy and snowy roads.
  • an object of the present invention is to provide a simple and immediate method for anyone, even a weak woman, without the need for work such as changing tires or installing tire chains. It is possible to switch from a state suitable for traveling to a state suitable for traveling on icy and snowy roads, and more preferably, to return to a state suitable for normal traveling. In any state, good traveling performance and braking performance can be obtained. To provide the resulting vehicle pneumatic tires.
  • the tread part which has a some rubber block provided so that it can partially protrude from the tread surface which contacts a road surface, and is provided over the perimeter, and the plurality provided in correspondence with each rubber block
  • the rubber block is provided with an inflatable fluid chamber, a fluid passage communicating with each fluid chamber, and a fluid inlet.
  • the working fluid is introduced from the fluid inlet through the fluid passage into each fluid chamber, so that the rubber block is tread.
  • a pneumatic tire is provided, which is partially projected from a surface.
  • a working fluid various materials such as gas such as air, liquid such as oil, and low-viscosity resin material can be used, but air which is relatively easy to handle is preferable.
  • a working fluid can be easily introduced from the outside by providing a fluid introduction port on the outer wall surface of the side wall portion.
  • each rubber block can be returned to its original state without protruding from the tread surface by removing the introduced working fluid and contracting each fluid chamber.
  • This allows the tires to be used as normal tires again in response to changes in seasons and road surface conditions, so that running on normal road surfaces does not impair comfort, and the tires can be used for a given life.
  • Can be used for BRIEF DESCRIPTION OF THE FIGURES FIG. 1 is a side view showing the entirety of a first embodiment of a pneumatic tire according to the present invention.
  • FIG. 2 is a schematic perspective view showing a cross section taken along line II-II of FIG.
  • Fig. 3A shows the state of the rubber block in the normal running mode.
  • FIG. 3B is a cross-sectional view taken along line 1 and in a running mode on an ice-snow road.
  • FIG. 4 is a side view showing the whole second embodiment of the present invention.
  • FIG. 5 is a schematic sectional view showing a section taken along line VV of FIG.
  • FIG. 6A is a cross-sectional view taken along the line VI-V in FIG. 5 in the normal driving mode
  • FIG. 6B is a cross-sectional view in the icy and snowy road driving mode.
  • FIG. 1 schematically shows an entire pneumatic tire for a vehicle according to a first embodiment of the present invention.
  • the tire 1 shown in FIG. 1 is mounted on a rim 2, and a number of rubber blocks 3 protrude radially outward from the surface of a tread portion 4 that comes into contact with the ground during running at regular intervals on the outer periphery.
  • the rubber blocks 3 are arranged at intervals similar to those of a tire chain that is usually used.
  • each rubber work 3 has a slender U-shaped belt-like shape extending from the trad portion 4 to the side portions 5 on both sides of the rubber protruding portion to a position in front of the bead portion 6 as a whole.
  • a protruding block portion 7 extending over the entire length, an intermediate elastic portion 8 extending from both ends along the side wall portion 5, and a fixing portion 9 further extending to each end.
  • the protruding block portion 7 is formed of the same hard rubber material as that of the traded portion 4 of the tire main body, and has a protruding shape corresponding to the traded pattern on the ground contact surface side.
  • the fixing portion 9 is integrally fixed to the side wall portion with the same rubber material so that its outer surface is smoothly continuous at the same surface height as the side wall portion 5.
  • the intermediate elastic part 8 connecting the projecting block part 7 and the fixing part 9 is made of an elastic rubber material.
  • a continuous expansion and contraction air chamber 11 is provided.
  • the air chamber 11 has an elongated concave It is composed of a lower film portion 12a forming a groove, and an upper film portion 12b partially overlapped thereon so as to be accommodated in the concave groove, and is made of a highly flexible synthetic resin or It is formed integrally and air-tight with rubber material.
  • each air chamber 11 is connected to a distribution pipe 13, respectively, and an air introduction port 16 provided on an outer surface of the side wall section 5 through an air supply passage 14 and a communication passage 15. Is in communication with The air inlet 16 is provided with a check valve to prevent the internal air from leaking to the outside.
  • air supply passages 14 As shown in FIG. 1, for each set of a predetermined number (four in the present embodiment) of adjacent rubber blocks 3, air supply passages 14, A working air introduction system including a communication passage 15 and an air introduction port 16 is provided.
  • a second distribution pipe line 17 is provided inside the tire 1 along the carcass portion 10 and each end thereof is connected to the other end of the air chamber 11. And the air supply passages 14 can be connected to each other.
  • the rubber block 3 does not protrude from the tread surface, and thus can run as a normal tire.
  • compressed air as working fluid must be supplied from the air inlet 16 through the communication passage 15, the air supply passage 14 and the distribution pipe 13 to the air chamber 11.
  • the upper membrane portion 12 b bulges in a balloon shape, and the protruding block portion 7 is lifted up while the intermediate elastic portion 8 is extended.
  • the second distribution pipe 17 is provided as described above, the air chamber 11 can be expanded more quickly and efficiently.
  • each of the ridges 18 of the protruding block 7 is fitted into the lower two grooves 19 of the inner wall of the tread portion, respectively, and is engaged with the tread surface from the tread surface.
  • the protruding block is held so as not to protrude.
  • the pneumatic tire of the present embodiment can return from the icy and snowy road running mode in which the rubber block 3 protrudes from the tread surface to the normal running mode in which the rubber block 3 does not protrude.
  • the check valve of the air inlet 16 is configured to be selectively openable, and air is discharged from the inside of the air chamber 11 to the outside through the air inlet 16 and the vehicle travels in that state. Then, each protruding block 7 can be retracted to the original position shown in FIG. 3A inside the tread 4 by pressure from the road surface.
  • each of the rubber blocks can be formed of a different rubber material from that of the trade portion. For example, by forming the tread portion of the tire body with a relatively soft rubber material as used for conventional snow tires and forming the rubber block with a harder rubber material, The grip power in the road running mode can be increased.
  • FIG. 4 schematically shows the entirety of a pneumatic vehicle vehicle according to a second embodiment of the present invention.
  • a large number of rubber tracks 20 are provided on the outer periphery of the tire 1 mounted on the rim 2 at a constant interval substantially equal to that of a normal tire chain, from the surface of the traded portion 3 in the radial direction. It protrudes in the direction.
  • the rubber block 20 is composed of individual block bodies formed of the same hard rubber material as the part of the tread portion 4 and embedded so as to be able to protrude and retract from the tread surface.
  • three rubber blocks 20 are arranged at predetermined intervals in the width direction of the tire.
  • an air chamber 21 that can be expanded and contracted is provided between the rubber block 20 and a force portion 10 including a belt layer such as a steel belt (not shown).
  • Each air chamber 21 As shown in the figure, a lower film portion 2 2 a forming a central groove in the width direction of the tire, and an upper film portion partially overlapped thereon so as to be accommodated in the groove. It is made of 22b and is integrally and airtightly formed of a highly flexible synthetic resin or rubber material.
  • Three air chambers 21 adjacent to each other in the width direction of the tire are connected to each other in series by a passage 23, and at one end thereof, as in the first embodiment, an air supply passage 14 And a communication passage 15 communicating with an air inlet 16 with a check valve provided on the outer surface of the sidewall portion 5.
  • the other end of the three air chambers connected to each other is, as shown by an imaginary line in FIG. 5, a second component provided along the force gap 10 inside the tire 1.
  • the pipe 17 can be connected to the air supply passage 14 similarly.
  • a working air introduction system including a communication passage 15 and an air introduction port 16 is provided.
  • each rubber block 20 On each of the front and rear sides of each rubber block 20, two ridges 24 are formed at predetermined intervals over substantially the entire length thereof, and the inner wall surface of the tread portion 4 adjacent to the bracket is provided with ridges 2 on each side.
  • the three grooves 25 having a cross-sectional shape that complements 4 are respectively recessed at the predetermined intervals.
  • each of the rubber blocks 24 is fitted into each of the lower two grooves 25 on the inner side wall of the trad portion so as not to protrude from the tread surface. Holds 20.
  • each ridge 24 of the rubber block has two upper grooves 25.
  • the height is preferably about the same as that of a commonly used tire chain, for example, about 5 to 10 thighs.
  • the check valve of the air inlet 16 is configured to be selectively openable, air is discharged from the inside of each air chamber 21 to the outside, and the vehicle travels in that state. Accordingly, each rubber block 20 can be retracted to the original position inside the tread portion 4 by the pressure from the road surface.
  • the pneumatic tire of the present invention secures the running performance as a normal tire in the normal running mode in which the rubber block does not protrude from the tread surface, and the tire is mounted on the vehicle.
  • a simple operation of introducing the working fluid as it is it is possible to immediately switch to a running mode on ice and snowy roads where the rubber block protrudes from the tread surface, and the same running performance and braking as when a tire chain is attached It has the advantage that performance can be obtained.
  • the present invention can be implemented by adding various modifications and changes to the above embodiment within the technical scope described in the claims.
  • the shape or size of the rubber block, the number of the rubber blocks arranged on the outer periphery of the tread portion, or the interval therebetween can be variously set depending on the use conditions of the tire.
  • Air is particularly preferred as the working fluid because it is relatively easy to handle, but various materials such as gas other than air, liquids such as oil, and low-viscosity resin materials can also be used.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Tires In General (AREA)

Abstract

Pneu de véhicule (1) capable de fonctionner selon un mode de déplacement normal dans lequel des blocs de caoutchouc ne forment pas de saillie depuis la surface de la bande de roulement et assurant les mêmes performances de déplacement et de freinage que celles qu'on obtient quand on monte des chaînes sur le pneu lorsqu'on se déplace sur la glace ou sur la neige. La pluralité de blocs de caoutchouc (3, 20) qui normalement forment une saillie partielle depuis la surface de roulement en contact avec la surface de la route, sont disposés à intervalles égaux tout autour de la circonférence de la bande de roulement et situés sur une partie (4) de cette bande de roulement. Des chambres à air dilatables (11, 21) sont placées immédiatement derrière ces blocs de caoutchouc respectifs et on peut introduire un fluide, tel que de l'air, quand le pneu est monté sur le véhicule, depuis l'extérieur dans chaque chambre à air par l'intermédiaire d'un passage d'air (14) et d'une entrée d'air (16) communiquant avec ces chambres à air, ce qui permet aux blocs de caoutchouc de ressortir de la surface de la bande de roulement au même niveau que les chaînes et de rentrer à l'intérieur de la bande de roulement par évacuation de l'air introduit dans les chambres.
PCT/JP2000/001661 2000-03-17 2000-03-17 Pneumatique WO2001070519A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2000/001661 WO2001070519A1 (fr) 2000-03-17 2000-03-17 Pneumatique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2000/001661 WO2001070519A1 (fr) 2000-03-17 2000-03-17 Pneumatique

Publications (1)

Publication Number Publication Date
WO2001070519A1 true WO2001070519A1 (fr) 2001-09-27

Family

ID=11735808

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2000/001661 WO2001070519A1 (fr) 2000-03-17 2000-03-17 Pneumatique

Country Status (1)

Country Link
WO (1) WO2001070519A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1699644A2 (fr) * 2003-10-31 2006-09-13 Power Cleat, Inc. Pneumatique ayant une partie bande de roulement expansible
CN103448484A (zh) * 2013-08-25 2013-12-18 建泰橡胶(深圳)有限公司 一种采用非牛顿流体层的轮胎
JP2019526490A (ja) * 2016-09-05 2019-09-19 ドライブ テクノロジー ホランド リミテッド タイヤ表面にスタッドを配置するための手段を備えたタイヤ、および方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57134303A (en) * 1981-02-10 1982-08-19 Kinya Nakamura Tire retractably with idling stopper
JPS57144110A (en) * 1981-02-27 1982-09-06 Kinya Nakamura Tire with anti-racing member put in or out
JPS60248409A (ja) * 1984-05-25 1985-12-09 Kaetsu Hoshi 接地パタ−ンを変更可能にした車両用タイヤ
JPS634803U (fr) * 1986-06-30 1988-01-13
JPH047204U (fr) * 1990-05-10 1992-01-23

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57134303A (en) * 1981-02-10 1982-08-19 Kinya Nakamura Tire retractably with idling stopper
JPS57144110A (en) * 1981-02-27 1982-09-06 Kinya Nakamura Tire with anti-racing member put in or out
JPS60248409A (ja) * 1984-05-25 1985-12-09 Kaetsu Hoshi 接地パタ−ンを変更可能にした車両用タイヤ
JPS634803U (fr) * 1986-06-30 1988-01-13
JPH047204U (fr) * 1990-05-10 1992-01-23

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1699644A2 (fr) * 2003-10-31 2006-09-13 Power Cleat, Inc. Pneumatique ayant une partie bande de roulement expansible
EP1699644A4 (fr) * 2003-10-31 2007-05-02 Tires Inc Q Pneumatique ayant une partie bande de roulement expansible
CN103448484A (zh) * 2013-08-25 2013-12-18 建泰橡胶(深圳)有限公司 一种采用非牛顿流体层的轮胎
JP2019526490A (ja) * 2016-09-05 2019-09-19 ドライブ テクノロジー ホランド リミテッド タイヤ表面にスタッドを配置するための手段を備えたタイヤ、および方法
JP7083815B2 (ja) 2016-09-05 2022-06-13 ドライブ テクノロジー ホランド リミテッド タイヤ表面にスタッドを配置するための手段を備えたタイヤ、および方法
US11554614B2 (en) * 2016-09-05 2023-01-17 Drive Technology Holland Ltd. Tire with means for setting out studs at the tire surface, and method

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