GB1426242A - Device for detecting variations in a physical characteristic of a wheel - Google Patents

Device for detecting variations in a physical characteristic of a wheel

Info

Publication number
GB1426242A
GB1426242A GB1108373A GB1108373A GB1426242A GB 1426242 A GB1426242 A GB 1426242A GB 1108373 A GB1108373 A GB 1108373A GB 1108373 A GB1108373 A GB 1108373A GB 1426242 A GB1426242 A GB 1426242A
Authority
GB
United Kingdom
Prior art keywords
tyre
coils
wheel
coil
pressure
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB1108373A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Industrie Pirelli SpA
Pirelli and C SpA
Original Assignee
Industrie Pirelli SpA
Pirelli SpA
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 Industrie Pirelli SpA, Pirelli SpA filed Critical Industrie Pirelli SpA
Publication of GB1426242A publication Critical patent/GB1426242A/en
Expired legal-status Critical Current

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
    • B60C23/0422—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 characterised by the type of signal transmission means
    • B60C23/0427—Near field transmission with inductive or capacitive coupling means
    • B60C23/043—Near field transmission with inductive or capacitive coupling means using transformer type signal transducers, e.g. rotary transformers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Measuring Fluid Pressure (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)

Abstract

1426242 Tyre pressure indicator INDUSTRIE PIRELLI SpA 7 March 1973 [8 March 1972] 11083/73 Heading B7C Apparatus for indicating-lack of pressure in a tyre 1 (Fig. 1) on a rotating wheel comprises two coils 8, 9 (Fig. 6) on a rotating part 3<SP>1</SP>, which couple during each revolution with a transmitter coil 2 and a receiver coil 6 on a non-rotating part 3. When the tyre pressure is below :a preset value the circuit for coils 8, 9 is closed by a switch 11 associated with the air pressure valve K, and the resulting voltage induced in coil 6 is amplified at 7 and fed to alarms 40, 41. The four receiver coils 6 of.four wheels may be connected in parallel to the alarm circuit via manual switches 15-18, whereby the deflated tyre energizing the alarm is identifiable. In another embodiment the switches 11 are normally closed so that amplifier 7 receives four bursts of oscillations for each revolution of the wheel, but only three if a switch 11 is opened by a deflated tyre.
GB1108373A 1972-03-08 1973-03-07 Device for detecting variations in a physical characteristic of a wheel Expired GB1426242A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2155272A IT949974B (en) 1972-03-08 1972-03-08 DEVICE TO SIGNAL THE CHANGE IN AIR PRESSURE IN A ROTATING WHEEL

Publications (1)

Publication Number Publication Date
GB1426242A true GB1426242A (en) 1976-02-25

Family

ID=11183487

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1108373A Expired GB1426242A (en) 1972-03-08 1973-03-07 Device for detecting variations in a physical characteristic of a wheel

Country Status (14)

Country Link
JP (1) JPS4912857A (en)
AR (1) AR196432A1 (en)
AU (1) AU5300073A (en)
BE (1) BE796258A (en)
BR (1) BR7301655D0 (en)
DE (1) DE2310881A1 (en)
ES (1) ES412608A1 (en)
FR (1) FR2175067B1 (en)
GB (1) GB1426242A (en)
IE (1) IE37520B1 (en)
IT (1) IT949974B (en)
LU (1) LU67166A1 (en)
NL (1) NL7303276A (en)
SE (1) SE384342B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS583200Y2 (en) * 1973-09-28 1983-01-20 松下電器産業株式会社 Tire adjustment method
JPS5240742U (en) * 1975-09-16 1977-03-23
JPS5837960Y2 (en) * 1977-08-05 1983-08-27 東レ株式会社 Fiber with sharpened ends
DE2824992A1 (en) * 1978-06-07 1979-12-13 Bridgestone Tire Co Ltd Automatic warning system for tyre pressure - includes resonant circuit on tyre valve and tuned detector circuit on chassis
FR2493775A1 (en) * 1980-11-13 1982-05-14 Dba Remote tyre pressure sensor for motor vehicle - has coupled coils mounted on car structure and wheel respectively, with latter actuated by pressure sensitive switch
JPS60239518A (en) * 1984-05-10 1985-11-28 Toyobo Co Ltd Tapered copolyester fiber and its preparation

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2274557A (en) * 1940-07-10 1942-02-24 Morgan Raymond Electric gauge
FR1270157A (en) * 1960-08-31 1961-08-25 Harvest Queen Mill & Elevator Deflation warning
FR1346571A (en) * 1961-12-28 1963-12-20 Magnavox Co Tire alarm system
GB968041A (en) * 1962-01-22 1964-08-26 Gen Electric Co Ltd Improvements in or relating to apparatus for testing or monitoring the value of a quantity
CH453140A (en) * 1966-03-16 1968-05-31 Willi Dipl Ing Menzel Device for wireless electrical transmission of physical parameters from rotating wheels to non-rotating receiving points
FR1582878A (en) * 1968-06-21 1969-10-10
US3602884A (en) * 1970-02-11 1971-08-31 Joseph S Brumbelow Tire condition monitoring system

Also Published As

Publication number Publication date
IE37520B1 (en) 1977-08-17
LU67166A1 (en) 1973-05-22
AR196432A1 (en) 1973-12-27
AU5300073A (en) 1974-09-12
IT949974B (en) 1973-06-11
JPS4912857A (en) 1974-02-04
NL7303276A (en) 1973-09-11
BR7301655D0 (en) 1974-05-16
SE384342B (en) 1976-05-03
DE2310881A1 (en) 1973-10-04
ES412608A1 (en) 1976-01-01
FR2175067B1 (en) 1975-04-04
IE37520L (en) 1973-09-08
FR2175067A1 (en) 1973-10-19
BE796258A (en) 1973-07-02

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Legal Events

Date Code Title Description
PS Patent sealed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee