Method for embedding a monitoring device within a tire during manufacture

• US 5,500,065 A
• Filed: 06/03/1994
• Issued: 03/19/1996
• Est. Priority Date: 06/03/1994
• Status: Expired due to Term

• Current Assignee: Bridgestone Americas Tire Operations LLC (Bridgestone Corporation)
• Original Assignee: Bridgestone Firestone North American Tire LLC (Bridgestone Corporation)
• Inventors: Turner, John L., Okamoto, Keizo, Takigawa, Hiroyoshi, Koch, Russell W., Walenga, Guy J.
• Primary Examiner(s): Ball, Michael W.
• Assistant Examiner(s): Lorin, Francis J.
• Application Number:
  US08/253,885
• Time in Patent Office: 655 Days
• Field of Search: 156/110.1, 156/123, 264/154, 264/501, 264/516, 264/326
• US Class Current: 156/123
• 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: B29D 2030/0083 Attaching monitoring devices to tyres before or after vulcanization by inserting them inside tyre cavities
• CPC Class Codes: B60C 23/0442 the transmitted signal comprises further information, e.g. instruction codes, sensor characteristics or identification data
• CPC Class Codes: B60C 23/0493 for attachment on the tyre
• CPC Class Codes: Y10T 152/10819 Characterized by the structure of the bead portion of the tire

Abstract

The invention is directed to a method of manufacturing a tire wherein a monitoring device is embedded within the tire during its manufacture. The method includes placing the device with a dowel on a tie gum ply prior to curing the tire, without having the device contact a body ply of the tire. Then an inner liner ply of the tire is assembled over the monitoring device and over the tie gum ply. Pressure is applied to cause the dowel to press through the inner liner ply and the tire is then cured. After curing, the dowel is removed in order to produce an aperture, thereby permitting the internal space of the tire to communicate with a pressure sensor located on the device.

Claims

1. A method for embedding a monitoring device having a pressure sensor within a tire during manufacture of the tire, comprising the steps of:

prior to curing the tire, placing the monitoring device having a dowel on a tie gum ply without having the monitoring device contact a body ply;

prior to curing the tire, assembling an inner liner ply over said monitoring device and over tie gum ply;

applying pressure to said inner liner ply so that said dowel presses through said inner liner ply;

curing the tire; and

removing said dowel so that an aperture extends through said inner liner ply to said pressure sensor of said monitoring device.

2. The method of claim 1 wherein the step of placing includes placing said monitoring device on said tie gum ply in the vicinity of a crown of the tire.

3. The method of claim 1 wherein the step of placing includes placing said monitoring device on said tie gum ply in the vicinity of a bead of the tire.

4. A method for securing a monitoring device having a pressure sensor to a tire, comprising the steps of:

providing an inner liner patch having a first side and a second side;

inserting a dowel having a body and a head through a first side of said inner liner patch until said head contacts said first side of said patch and said body penetrates through to said second side of said patch;

assembling the monitoring device to said second side of said patch so that a portion of the device is in contact with said body of said dowel penetrating said second side of said patch;

adhering said inner liner patch to a tire inner liner ply by contacting said second side of said patch to said tire inner liner;

curing said inner liner patch to said tire inner liner ply by applying heat and pressure; and

removing said dowel so that an aperture extends through said inner liner patch to said pressure sensor of said monitoring device.

5. The method of claim 4 wherein the step of assembling includes assembling said patch and said monitoring device to said inner liner ply in the vicinity of a crown of the tire.

6. The method of claim 4 wherein the step of assembling includes assembling said patch and said monitoring device to said inner liner ply in the vicinity of a bead of the tire.