WO2004033233A2 - Systeme assurant la securite des pneus - Google Patents

Systeme assurant la securite des pneus Download PDF

Info

Publication number
WO2004033233A2
WO2004033233A2 PCT/US2003/031843 US0331843W WO2004033233A2 WO 2004033233 A2 WO2004033233 A2 WO 2004033233A2 US 0331843 W US0331843 W US 0331843W WO 2004033233 A2 WO2004033233 A2 WO 2004033233A2
Authority
WO
WIPO (PCT)
Prior art keywords
tire
safety system
computer
air pressure
inflatable member
Prior art date
Application number
PCT/US2003/031843
Other languages
English (en)
Other versions
WO2004033233A3 (fr
Inventor
Itzhak Sapir
Original Assignee
Itzhak Sapir
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 Itzhak Sapir filed Critical Itzhak Sapir
Priority to AU2003279875A priority Critical patent/AU2003279875A1/en
Publication of WO2004033233A2 publication Critical patent/WO2004033233A2/fr
Publication of WO2004033233A3 publication Critical patent/WO2004033233A3/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
    • B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
    • B60C23/02—Signalling devices actuated by tyre pressure
    • B60C23/04—Signalling devices actuated by tyre pressure mounted on the wheel or tyre
    • B60C23/0408—Signalling devices actuated by tyre pressure mounted on the wheel or tyre transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver
    • 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
    • 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
    • B60C17/01—Tyres characterised by means enabling restricted operation in damaged or deflated condition; Accessories therefor utilising additional inflatable supports which become load-supporting in emergency
    • B60C17/02—Tyres characterised by means enabling restricted operation in damaged or deflated condition; Accessories therefor utilising additional inflatable supports which become load-supporting in emergency inflated or expanded in emergency only
    • 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
    • B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
    • B60C23/001—Devices for manually or automatically controlling or distributing tyre pressure whilst the vehicle is moving
    • B60C23/004—Devices for manually or automatically controlling or distributing tyre pressure whilst the vehicle is moving the control being done on the wheel, e.g. using a wheel-mounted reservoir

Definitions

  • Rapid tire deflation has been a problem since the dawn of the automobile. Rapid deflation can cause accidents on the road leaving a driver and passengers stranded in inhospitable situations.
  • Various devices have been invented to prevent or mitigate the loss of air pressure in tires.
  • a tire that can be run after loss of or reduction in pressure has been a desirable objective in the tire industry for some time.
  • a tire that can be run in a deflated condition for an appreciable distance permits the driver to continue after the loss of or reduction in pressure or until a replacement tire can be obtained or the damaged tire repaired. This would eliminate changing tires on the road and the need to depend on the serviceable condition of a spare tire that takes up considerable space in the vehicle. Also, such a safety tire would permit the driver to continue on some distance until a safe stopping place could be found thus avoiding sudden stopping on crowded, streets, bridges and highways.
  • Many pneumatic tire constructions have been designed in an attempt to achieve these capabilities such as the constructions of U.S. Pat. Nos. 3,095,917, 3,392,772 and 3,724,521, however, none have been wholly successful in meeting the operational demands of current automotive vehicles.
  • US Patent No. 4,008,743 to Welch shows a pneumatic tire with an internal toroidal safety structure that expands and provides emergency support between the tire tread and the wheel rim if the tire loses inflation pressure.
  • the safety structure has an outer circumferential belt comprising one or more superposed layers of cord reinforced strips, the belt being secured to the safety structure in a relatively narrow central circumferential zone so that radial expansion of the toroidal safety structure is readily accommodated should the tire lose inflation pressure.
  • the belt bears between the inner surface of the tread portion of the tire and the safety structure in the event of tire deflation or underinflation and thus guards against puncture.
  • the internal safety structure of the Welch inflatable tube or resilient toroidal member with special reinforcing means can be bulky and make tire changes cumbersome.
  • Safety structures introduced inside of the tire are subject to the rotational acceleration and vibration forces due to tire rotation from ordinary use and bumps on the road.
  • Double inner tubes, solid rubber tires and related structures greatly complicate tire balancing, add weight and make tire maintenance more cumbersome.
  • the tire construction of the present invention reduces these difficulties.
  • Figure 1 is a front sectional view of the device showing inflatable portion stowed position.
  • Figure 2 is a side sectional view of the device showing inflating inflatable portion.
  • Figure 3 is a schematic diagram of the invention.
  • Figure 4 is a schematic diagram of the control unit.
  • the present invention increases the driving safety of wheeled vehicles in case of loss of tire air pressure, without adding substantial bulk to the tire.
  • the hollow inflatable portion 30 supports a vehicle and gives a tire supplemental structural integrity in case of rapid deflation.
  • the inflatable portion can be formed as a single toroidal member 30 around the wheel 20 or from multiple inflatable members joining together at their periphery to form a shape approximating a toroidal inflatable member.
  • the inflatable members can be formed as a pair of semicircular halves or as three or four members spaced equal distantly around the inside periphery of the wheel. More than members can be used for additional redundancy. Each member forms an equal section of the torus shape and conforms to the shape of the inside of the tire upon inflation.
  • the tire 10 is separately installed and inflated around the wheel 20.
  • the tire does not need to touch the inflatable members when the inflatable members are in a deflated mode. Because the inflatable members are compactly stowed and folded, they do not take up much space inside the tire.
  • multiple inflatable portions 30 inflate in tandem to form a continuous inflated support for a deflated tire.
  • each member has its own independent chemicals container.
  • a chemicals container 40 forms the pressurized gas.
  • Each inflatable portion is inflated by pressurized gas to bolster remaining tire pressure.
  • One or more chemicals containers 40 can be activated by an electronic signal to produce pressurized gas 35.
  • the chemicals container 40 inflation system can react chemicals such as sodium azide (NaN3) with potassium nitrate (K O3) to produce nitrogen gas. Hot blasts of the nitrogen inflate the inflatable portion.
  • Chemicals containers are widely known in the art and available commercially for mixing and reacting chemicals rapidly to form hot blasts of gas from solid chemicals.
  • Compressed air rather than a chemicals container 40 can introduce the pressurized gas.
  • This separate embodiment may use pressurized gas held within the wheel of the vehicle.
  • the wheel of the vehicle is commonly made of metal and can form a chamber capable of storing pressurized gas.
  • compressed gas containers can add expanded gas to the inflatable member for inflation.
  • a valve actuated by an electrical input can open the gas canister for inflation of the inflatable member.
  • the inflatable portion of the system is a folded hollow torus reinforced at the external circumference by a thick rubber belt that can be formed as a continuous belt or in sections, pieced together. This torus is mounted inside the wheel prior to mounting the tire.
  • the internal diameter of inflatable portion matches the wheel size so that it does not rotate easily relative to the wheel. Attachment means such as double-sided adhesive tapes may supplement the interference fit.
  • the chemicals container may be formed around the wheel as a single unit inside belt 44 mounted inside the inflatable member 30.
  • the inflatable member is preferably flexible and expandable around the rim of a wheel for ease of mounting on a wheel.
  • the protective belt 36 is mounted outside and around the inflatable members. Sometimes there may be a sharp object sticking through the inside of the tire causing the puncture.
  • a protective belt 36 of thicker rubber or heavy cloth may be included to protect the inflatable member 30.
  • the protective belt 36 also stabilizes the inflatable members and connects the inflatable members to each other.
  • the device also includes a tire air pressure sensor 50.
  • a pressure sensor can detect the rate of air pressure change and activate the system producing gas. To prevent the system from activating because of a slow leak, the pressure sensor detecting the rate of air pressure change can be set by a user to activate the system when a particular rate of air pressure change is reached. When the air pressure drops below a certain predetermined pressure level, the system when armed triggers the chemicals to produce pressurized gas and inflate the inflatable member.
  • the arming mode can be switch activated. In the best mode, a rotation sensor switches the system to armed mode only above a certain wheel rotation speed.
  • a wide variety of commercially available rotation sensors can be implemented and mounted inside or outside the device.
  • the system includes three alarm modes with a speaker mounted in each device.
  • the first is a general no motion low pressure audible sound indicating the need to inflate a tire.
  • the second is an in motion low pressure audible sound that tries to prevent a blowout caused by having a too low pressure in one of the tires.
  • the third is a system activated audible sound indicating a activation of the system.
  • the computer may have a malfunction range of input values when the rotation or pressure data are outside of the range of the normal operating conditions.
  • a transmitter 80 can replace the audible alarm so that warning signals are transmitted to a receiver in the driver's cabin 90.
  • the proposed system may also include a means for adjusting the parameters (pressures, rotation speeds etc.) to the recommended values for the type of vehicle and wheel on which the system is mounted.
  • a computer 95 can be programmed and set for each type of vehicle and wheel.
  • the proposed system may also include a means for analyzing the rate of change in air pressure and in cases where the rate of change is above a certain value, activate the system even when still above the pressure threshold such as in case of a blowout.
  • a computer 95 can be programmed to activate the chemicals container after analyzing the pressure data.
  • a power switch 55 can be connected to the computer to shut off the computer and to deactivate the system for maintenance or repair.
  • Certain elements of the device can be consolidated and packaged into a control unit 99 as shown in figure 4.
  • the inputs consisting of the power switch 55, the rotation sensor 60, and to the tire pressure sensor 50 can be separately input into a computer 95.
  • the computer 95 produces an electrical signal controlling the speaker 70, the transmitter 80, and the chemicals container activation input 48.
  • the chemicals container activation input receives an electrical signal triggering the mixing and reaction of the chemicals causing the subsequent deployment of the hot gas inside the inflatable member 30.
  • Each of the components such as the rotation sensor, control unit, speaker, transmitter may have its own electrical power supply. The use of power supply is obvious in this case.
  • Transmitters mounted within the safety system can send output data of sensors to a computer in the cabin so that the computer may receive data from all four of the tires for comparison and analysis.
  • the computer can be programmed with a table of acceptable rotation and air pressure.
  • the rotation and air pressure data is correlated with a chart for the computer to determine which course of action to take.
  • the computer may output an audible sound, or activate the chemicals container by sending a signal to the activation input.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Tires In General (AREA)
  • Measuring Fluid Pressure (AREA)

Abstract

L'invention concerne un système assurant la sécurité des pneus monté sur une jante de véhicule dans un pneu. Un capteur de pression d'air du pneu effectue une lecture de la pression d'air du pneu. Un élément gonflable forme une structure de sécurité intérieure, expansible et toroïdale. L'élément gonflable est monté contre la jante du véhicule. Le conteneur de substances chimiques situé à l'intérieur de l'élément gonflable reçoit un signal électrique au niveau d'une entrée d'activation. Le conteneur de substances chimiques produit du gaz pressurisé à l'intérieur de l'élément gonflable afin de provoquer le gonflement lorsqu'un signal est reçu au niveau de l'entrée d'activation. Une courroie de protection circonférentielle radialement expansible montée autour de l'élément gonflable se dilate avec le gonflement de l'élément gonflable de sorte que, une fois dilatée, elle reçoive le pneu, lors du fonctionnement. Un ordinateur recevant les lectures de la pression d'air du pneu envoyées par le capteur de pression d'air du pneu envoie un signal à l'entrée d'activation lorsqu'un changement de pression d'air du pneu se produit brusquement.
PCT/US2003/031843 2002-10-09 2003-10-07 Systeme assurant la securite des pneus WO2004033233A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003279875A AU2003279875A1 (en) 2002-10-09 2003-10-07 Tire safety system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US41692602P 2002-10-09 2002-10-09
US60/416,926 2002-10-09

Publications (2)

Publication Number Publication Date
WO2004033233A2 true WO2004033233A2 (fr) 2004-04-22
WO2004033233A3 WO2004033233A3 (fr) 2005-07-14

Family

ID=32093928

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2003/031843 WO2004033233A2 (fr) 2002-10-09 2003-10-07 Systeme assurant la securite des pneus

Country Status (2)

Country Link
AU (1) AU2003279875A1 (fr)
WO (1) WO2004033233A2 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5695578A (en) * 1995-02-27 1997-12-09 Pirelli Coordinamento Pneumatici Tire with a reinforced belt band of alternating first and second cords
US6022434A (en) * 1996-08-02 2000-02-08 Michelin Recherche Et Technique S.A. Run-flat tire having partial carcass layers
US6478387B1 (en) * 2001-07-13 2002-11-12 The Goodyear Tire & Rubber Company Heavy duty dual tire assembly

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5695578A (en) * 1995-02-27 1997-12-09 Pirelli Coordinamento Pneumatici Tire with a reinforced belt band of alternating first and second cords
US6022434A (en) * 1996-08-02 2000-02-08 Michelin Recherche Et Technique S.A. Run-flat tire having partial carcass layers
US6478387B1 (en) * 2001-07-13 2002-11-12 The Goodyear Tire & Rubber Company Heavy duty dual tire assembly

Also Published As

Publication number Publication date
AU2003279875A1 (en) 2004-05-04
AU2003279875A8 (en) 2004-05-04
WO2004033233A3 (fr) 2005-07-14

Similar Documents

Publication Publication Date Title
US8757658B2 (en) Adjustable grip steering wheel safety system to protect hands and upper extremities in low impact collisions
US5927748A (en) Multi-stage inflatable bag for vehicular safety systems
US3724521A (en) Anti-flat device
JP2003312220A (ja) タイヤ状態検出・通信装置
US5174599A (en) Steering wheel double air bag protective system
CN102363406A (zh) 一种防爆胎紧急充气装置
US20150013870A1 (en) Pneumatic tire security system employing internal high pressure air bag
US6837104B2 (en) Tire safety system
US20120055599A1 (en) Safety system for vehicle tire blowout
US20110030867A1 (en) Pneumatic tire security system
US20050109439A1 (en) Integrated tire rim airbag system
GB2258195A (en) Pneumatic tyre assembly
CN110103645A (zh) 一种汽车轮胎爆胎的安全装置和控制方法
WO2004033233A2 (fr) Systeme assurant la securite des pneus
JPH0538907A (ja) 車両用タイヤ
CN202123900U (zh) 一种防爆胎紧急充气装置
US20190248190A1 (en) Tire airbag apparatus
US20130020004A1 (en) Pneumatic tire security system
US6367528B1 (en) Tire deflection alarm
CN212242844U (zh) 一种车轮用安全气囊装置
US20120048442A1 (en) Pneumatic tire security system
CN209869975U (zh) 无内胎子午线轮胎用充气式爆胎应急安全装置
JPH07228111A (ja) 自動車用タイヤ
JP2002178726A (ja) 安全タイヤ用リムホイール及び安全タイヤ・リム組立体
US20240083199A1 (en) Flat tire airbag system

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase in:

Ref country code: JP

WWW Wipo information: withdrawn in national office

Country of ref document: JP