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
  • B60C23/0491—Constructional details of means for attaching the control device
  • B60C23/0493—Constructional details of means for attaching the control device for attachment on the tyre
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
  • B29D30/00—Producing pneumatic or solid tyres or parts thereof
  • B29D30/0061—Accessories, details or auxiliary operations not otherwise provided for
  • B29D2030/0072—Attaching fasteners to tyres, e.g. patches, in order to connect devices to tyres
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
  • B29D30/00—Producing pneumatic or solid tyres or parts thereof
  • B29D30/0061—Accessories, details or auxiliary operations not otherwise provided for
  • B29D2030/0077—Directly attaching monitoring devices to tyres before or after vulcanization, e.g. microchips
• • 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

Definitions

• the invention relates to tires fitted with removable electronic monitoring modules and a device for fixing such modules to tires, modules generally encapsulated in rigid housings.
• the electronic monitoring modules existing today which can be self-powered or require an external source of energy supply, are capable of storing information for future evaluations and / or transmitting data on demand. It should be noted that typical modules are described in particular in publications US 4,862,486, 5,218,861 and 5,573,610. It is therefore important to be able to access the module during the life of the tire or even with a view to repairing it or modifying it.
• Publication EP-0 936 089 presents such solutions in which modules comprising both circuits and recharging batteries are inserted in rubber plasters similar to those used for carrying out repairs and which carry a circular housing allowing the placing in place of the module, these plasters are fixed under the top of the tire by a self-vulcanizing system.
• Different systems for fixing the module in the housing are presented, such as a module with a locking ring or with a thread to achieve its screwing.
• This area is in fact more subject to deformations which risk adversely affecting the good behavior of the interface between the patch and the tire. This phenomenon is further accentuated by the large size of the surface of the patch carrying the module which will generate a large working surface on the tire. It will be noted, moreover, that the embodiment presented does not allow the use of a more conventional repair system with a bonding rubber, with hot bonding which improves this interface behavior.
• the subject of the invention is tires and removable fastening devices for electronic monitoring modules capable of including batteries which overcome all of the aforementioned drawbacks.
• the device for fixing an electronic monitoring module to a tire comprises a plaster made of a rubber mixture, the surface of which intended to be in contact with air carries at least one rigid insert comprising a thread intended to cooperate with a screw carried by a box carrying the electronic monitoring module
• the invention also relates to a tire thus equipped.
• FIG. 1 is a schematic representation of a tire on which an electronic monitoring module is internally fixed in accordance with the invention
• FIG. 2 is a sectional representation of the device for fixing the module shown in FIG. 1,
• FIG. 3 is a sectional representation of the plaster used in the fixing device shown in FIG. 2,
• FIG. 4 is a sectional representation of the plaster shown in Figure 3 according to an alternative embodiment.
• the tire 1 carries at the level of its internal coating 10 an electronic monitoring module carried by a fixing device 11.
• This fixing device comprises a repair patch 12 fixed to the tire and a box 13 carrying the electronic module and fixed to the patch 12.
• the housing 13 carries two fixing lugs 131 and 132 on the patch 12 by means of two screws 14 and 15 to be screwed into the patch 12, nuts 16 and 17 cooperating with the said screws for holding the housing 13 in position relative to the patch 12.
• the patch 12 will be described more precisely with reference to FIG. 3.
• the patch 12 carries two housings 121 and 122 for receiving inserts 18 and 19 of frustoconical shape which carries in their center a thread 181 and 191 intended to cooperate with the screws 14 and 15.
• the connection between the plaster 12 made of an elastomeric mixture and the inserts is made by gluing, however the frustoconical shape of the inserts makes it possible to prevent the latter from being liable to separate from the plaster under certain constraints .
• the contour of the plaster follows the frustoconical shapes of the inserts 18 and 19, which allows the plaster by the particular shape which it adopts to act with respect to the housing 13 as a silent-block absorbing the stresses and deformations undergone by the tire and therefore by the plaster, this arrangement makes it possible in particular to position the fixing device 11 in the lower zone of the tire - as shown in FIG. 1 but also in any other internal position of the tire.
• the outer surface 120 of the plaster which will be free once the plaster is installed in the tire is covered with a butyl rubber coating to maintain its seal vis-à-vis in particular gases and oxidation.
• All of the plaster 12 can be made entirely of butyl rubber or be formed at the heart of the plaster by other elastomeric mixtures.
• the surface 182, 192 respectively of the bases of smaller diameter of the inserts 18, 19 is not in contact with the air but in contact with the layer of butyl rubber.
• this insert is chosen to present both good adhesion with the rubber and good rigidity so these inserts can be made of "NYLON” (registered trademark), bronze or brass.
• the choice of metal in the case of a metal insert is, in fact, limited so as not to generate a magnetic field liable to interfere with the module.
• the plaster 12 is in contact with a polyester fabric 21 which will be removed during its use, as for the more conventional repair plasters, with a bonding rubber to be fixed to the tire.
• a self-vulcanizing adhesive for the connection with the tire, however depending on the chosen position of the patch relative to the tire, it may be advantageous to keep the system hot with the bonding rubber which improves the behavior of the interface. patch-pneumatic.
• the plaster can be produced by hot molding on the inserts in a mold in the case where a single rubbery mixture is chosen to produce it. It is also possible to stack cold products in a mold and then proceed to cooking.
• FIG 4 shows an alternative embodiment of the patch 12 'which has a single insert 18' carrying the thread 181 '.
• This plaster with a single insert may suffice, in particular if a module without batteries is therefore considered, therefore having a smaller footprint and weight.
• the fixing screw of the case with the plaster can in this case be directly secured to the case.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Measuring Fluid Pressure (AREA)
• Tires In General (AREA)
• Arrangements For Transmission Of Measured Signals (AREA)
• Force Measurement Appropriate To Specific Purposes (AREA)
• Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)

Priority Applications (7)

Applications Claiming Priority (2)

Related Child Applications (1)

Publications (1)

Family

ID=8862310

Family Applications (1)

Country Status (10)

Cited By (2)

Families Citing this family (27)

Citations (5)

Family Cites Families (4)

• 2001
  • 2001-04-09 FR FR0105071A patent/FR2823148A1/fr active Pending
• 2002
  • 2002-04-08 BR BRPI0208720A patent/BRPI0208720B1/pt not_active IP Right Cessation
  • 2002-04-08 JP JP2002579250A patent/JP4009201B2/ja not_active Expired - Fee Related
  • 2002-04-08 CA CA002442294A patent/CA2442294A1/fr not_active Abandoned
  • 2002-04-08 DE DE60204871T patent/DE60204871T2/de not_active Expired - Lifetime
  • 2002-04-08 AT AT02727536T patent/ATE298675T1/de not_active IP Right Cessation
  • 2002-04-08 EP EP02727536A patent/EP1385710B1/fr not_active Expired - Lifetime
  • 2002-04-08 WO PCT/EP2002/003840 patent/WO2002081238A1/fr not_active Ceased
• 2003
  • 2003-09-23 ZA ZA200307404A patent/ZA200307404B/xx unknown
  • 2003-10-03 US US10/678,835 patent/US6782741B2/en not_active Expired - Lifetime

Patent Citations (5)

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