Monitored vehicle tire and monitor retainer assembly

• US 6,217,683 B1
• Filed: 11/24/1999
• Issued: 04/17/2001
• Est. Priority Date: 02/12/1998
• Status: Expired due to Term

• Current Assignee: Michelin Recherche et Technique SA (Compagnie Generale DES Etablissements Michelin SCA)
• Original Assignee: Michelin Recherche et Technique SA (Compagnie Generale DES Etablissements Michelin SCA)
• Inventors: Young, Cecil, Stafford, David Kevin, Balzer, Raymond J., Kemp, Preston Butler Jr.
• Primary Examiner(s): Ball, Michael W.
• Assistant Examiner(s): Haran, John T
• Application Number:
  US09/449,268
• Time in Patent Office: 510 Days
• Field of Search: 156/60, 156/153, 156/66, 156/91, 156/92, 152/152.1, 244/53, 411/510
• US Class Current: 156/60
• CPC Class Codes: B29D 2030/0072 Attaching fasteners to tyres, e.g. patches, in order to connect devices to tyres
• CPC Class Codes: B29D 2030/0077 Directly attaching monitoring devices to tyres before or after vulcanization, e.g. microchips
• CPC Class Codes: B60C 23/0493 for attachment on the tyre
• CPC Class Codes: Y10T 156/10 Methods of surface bonding and/or assembly therefor

Abstract

The present invention provides a tire monitor retainer assembly and monitored vehicle tire. A module which monitors tire information is supported by a rubber ply affixed to the inside surface of the tire. The module has electrical components for monitoring tire information by collecting, storing and/or reading information about the tire. A fastener assembly is used to secure the module to the rubber ply such that the module is support within the tire'"'"'s cavity. The module is mounted to be isolated from tire loads such that the durability of the monitoring system is improved. The fastener assembly has first parts carried by the rubber ply and second fastener parts built into the module. The first and second fastener parts cooperate to support said module from said rubber ply. The module is made with a retainer opening having edges to receive a fastener device having standoff or indexing elements. The fastener device can also be in the form of a strap with free ends that wrap around the module having hook and loop first fastener parts for holding the module adjacent the rubber ply. In another embodiment, the fastener assembly can be semi-rigid straps with slotted fasteners to contact second fastener parts of the module. The tire monitor retainer assembly may allow the module to be removed for inspection, repairs or updating.

Claims

1. A vehicle tire monitor apparatus for monitoring tire information regarding a vehicle tire comprising:

a rubber ply having a first side affixed to an interior surface of the tire at a predetermined location within a cavity of the tire;

a module carried by a second side of said rubber ply for containing electronic components which monitor the tire information;

a retainer assembly for securing said module to said rubber ply; and

an isolation mount of said retainer assembly for mounting said module in an offset position with respect to said rubber ply to increase durability of said module and the tire.

2. The apparatus of claim 1 wherein said retainer assembly includes a first fastener part carried by said rubber ply and a complementary, second fastener part carried by said module, said first and second fastener parts cooperating to securely fasten said module to said rubber ply.

3. The apparatus of claim 2 wherein said first fastener part includes at least one shaft having one end affixed to said rubber ply and said shaft having a sufficient length to allow said module to be carried near a remote end of said shaft at an offset distance from said rubber ply to provide said isolation mount.

4. The apparatus of claim 3 wherein said at least one shaft includes a retainer button carried by said remote end of said shaft for limiting the axial movement of said module away from said rubber ply so that said module is generally maintained in said offset distance by said retainer button contacting said second fastener part of said module.

5. The apparatus of claim 4 wherein said second fastener part includes a retainer opening formed in said module for frictionally receiving and retaining said shaft and said retainer button.

6. The apparatus of claim 5 wherein said retainer opening includes a recessed edge for receiving said retainer button so that said module is in an axially displaced position with respect to said rubber ply to define said offset position between said module and rubber ply.

7. The apparatus of claim 6 wherein said retainer opening and retainer button have a non-circular shape so that rotation of said module on said shaft is prevented.

8. The apparatus of claim 5 including an entrance opening formed in said module for initially receiving said shaft along with said retainer button;

a transfer slot communicating with said entrance opening and said retainer opening allowing movement of said shaft from said entrance opening to said retainer opening for retention therein.

9. The apparatus of claim 3 wherein said offset distance has a value in a range of about 1 to about 5 millimeters.

10. The apparatus of claim 2 wherein said isolation mount includes index elements carried by one of said first and second fastener parts to mount said module at an offset distance from said rubber ply to define said offset position.

11. The apparatus of claim 2 wherein said isolation mount includes a plurality of standoff elements carried by one of said rubber ply and said module to provide a desired offset position of said module as retained by said first and second fastener parts so that said module is generally maintained at said desired offset position.

12. The apparatus of claim 11 wherein said standoff elements comprise resilient nibs.

13. The apparatus of claim 2 wherein said first fastener part includes two shafts having indexing elements carried by said shafts for engaging said second fastener part of said module to provide said offset position of said module so that said module is generally maintained at an offset distance.

14. The apparatus of claim 2 wherein said first fastener part of said retainer assembly includes a shaft with one end carried by said rubber ply and indexing elements carried near the other remote end of said shaft;

and said second fastener part of said retainer assembly including a retainer opening formed in said module for engaging said indexing elements to position said module at an offset distance.

15. The apparatus of claim 14 wherein said retainer opening includes edge elements for engaging with desired ones of said indexing elements to mount said module in said offset position at a desired distance from said rubber ply.

16. The apparatus of claim 1 wherein said isolation mount includes at least one standoff element carried by one of said rubber ply and said module to assist in spacing said module in said offset position being an offset distance from said rubber ply.

17. The apparatus of claim 1 wherein said isolation mount includes a resilient, stress absorbing resilient pad disposed between said module and said rubber ply for isolating said module and positioning said module at an offset distance from said rubber ply.

18. The apparatus of claim 1 wherein said isolation mount includes:

a pair of spaced apart shafts carried by said rubber ply;

index elements carried by remote ends of said shafts; and

retainer openings having edge elements formed in said module, wherein a select pair of said index elements engage respective edge elements to provide said offset position of said module with respect to said rubber ply.

19. The apparatus of claim 2 wherein said first fastener part includes at least one strap carried by said rubber ply for encircling said module and holding said module at said offset position.

20. The assembly of claim 19 wherein said rubber ply is a folded rubber ply forming a plurality of layers with a pocket for receiving said at least one strap, and said at least one strap includes complementary attachments at opposing, free ends for securing said module with said at least one strap.

21. The assembly of claim 20 wherein said second fastener part includes a pair of retainer openings formed in said module in which said strap is placed with said free ends of said strap attached to one another to fasten said module adjacent said rubber ply.

22. The assembly of claim 21 wherein said retainer openings of said module are cutouts at opposed ends of the said module.

23. The assembly of claim 20 wherein said at least one strap includes a pair of semi-rigid straps such that each strap has a first end with locking elements to be placed into said pocket of said rubber ply and a free end having slotted fasteners being external to said rubber ply to provide said first fastener parts to fasten said module adjacent said rubber ply.

24. A method for isolating a module interior to a vehicle tire comprising:

providing a rubber ply having first and second opposed sides;

forming a conditioned surface area on an interior surface of the tire;

affixing said first side of said rubber ply to said conditioned surface area at one of before curing, during curing, and after curing of the tire; and

securing a module containing electrical components at a predetermined offset distance from said second side of said rubber ply for increasing durability of the module and the tire, wherein tire information is monitored during the life of the tire.

25. The method of claim 24 wherein the step of securing said module to said rubber ply includes:

providing a first fastener part carried on said rubber ply and a complementary, second fastener part carried by said module; and

connecting said first and second fastener parts together, wherein releasing said first fastener part from said second fastener part allows said module to be removed and replaced.

26. The method of claim 24 wherein the step of forming a conditioned surface area includes the step of removing contaminates from said surface area to generally increase the adherence of the rubber ply to said interior surface of the tire.

27. A method for mounting and isolating a monitor within a vehicle tire with a steel reinforced belt and bead core comprising the steps of:

a) providing a resilient, rubber-like mounting shaft on an interior surface of said tire, said mounting shaft projecting from said interior surface, and said shaft being spaced apart from the belt and the bead core;

b) providing indexing elements at the outer end of said shaft;

c) providing a module for monitoring tire information with a retainer opening therein, said retainer opening being adapted to cooperate with said indexing elements to securely hold said module within the tire;

d) mounting said module on said shaft to be retained by said indexing elements; and

e) providing an isolation mount to keep the mounted module at an offset position from said interior surface whereby said module maintains a minimum predetermined distance from said interior surface of said tire and is isolated therefrom.