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EP-4446136-B1 - TIRE

EP4446136B1EP 4446136 B1EP4446136 B1EP 4446136B1EP-4446136-B1

Inventors

  • SUKEGAWA, Shin
  • HOSHINO, HIRONORI
  • MORI, Hirotomo

Dates

Publication Date
20260513
Application Date
20220622

Claims (3)

  1. A tire (1, 100, 200) comprising: a tire body (10); and a covered communication device (40) at least a part of which is embedded in the tire body (10), wherein the covered communication device (40) comprises: a communication device (41); and a covering body (42) that covers a periphery of the communication device (41), and the covering body (42) comprises: a distinction portion (60) that is distinguishable from a portion located around the covering body (42), of the tire body (10), in a cross-sectional view in a plane passing through the covered communication device (40); a covering different-color layer (50) having a different hue from the portion located around the covering body (42), of the tire body (10), wherein the distinction portion (60) is the covering different-color layer (50); the tire being characterized in that the covering body (42) further comprises covering rubber (42a) that covers the periphery of the communication device (41); and a covering outer surface layer (42b) that covers a periphery of the covering rubber (42a), wherein the covering different-color layer (50) is the covering outer surface layer (42b).
  2. The tire according to claim 1, wherein a part of the distinction portion (60) of the covering body (42) is exposed from an outer surface (13a, 14a) of the tire body (10).
  3. The tire according to any one of claims 1 or 2, wherein the distinction portion (60) of the covering body (42) includes a light emission area (71).

Description

TECHNICAL FIELD The present invention relates to a tire. BACKGROUND Tires with communication devices embedded within are known. Patent Literature (PTL) 1 discloses this type of tire. EP 3 533 640 A1 relates to an RFID mesh label configured to be integrally incorporated within a vulcanized tire and to further provide unique identifier(s) and/or other information about the vulcanized tire during and/or post-vulcanization, the RFID mesh label including a face layer configured to be positioned adjacent or flush to an outer surface of the vulcanized tire; an RFID layer positioned underneath the face layer, the RFID layer having an RFID device that is configured to provide unique identifier(s) and/or other information about the vulcanized tire upon being read with an RFID reader; and a mesh backing overlying the RFID layer and adapted to be integrally incorporated in a vulcanized tire after subjecting a green tire to a vulcanization process. FR 2 966 768 A1 relates to a method involving placing an assembly including an electronic device and a vulcanized rubber mass that encapsulates the electronic device, in contact with raw rubber masses of a blank of a tire. The vulcanized rubber mass encapsulating the electronic device is electrically insulating, where the vulcanized rubber mass has an average thickness between 1 mm and 2 mm. US 7 112 251 B2 relates to a tire having a portion thereof such as a sidewall component that glows-in-the-dark due to the presence of a phosphorescent layer thereon. JP 2020 069941 A relates to a tire in which a surface of a side wall rubber of a tire body part has a structure that has a vulcanized rubber layer and a polyurethane foam layer. The structure has parts mutually different in color in a thickness direction of the structure. In a method of manufacturing the tire of the present invention, the tire is manufactured by using the vulcanized tire body part or the pre-vulcanization tire body part, the pre-vulcanization vulcanized rubber layer, and the polyurethane foam layer. JP 2006 056443 A relates to a pneumatic tire, provided with a transponder, including an identification marker for indicating a position of the transponder placed on an outer surface of the pneumatic tire in which the transponder is located. The pneumatic tire, provided with the transponder on a side wall part, includes the identification marker for indicating the position of the transponder on the outer surface of the pneumatic tire in which the transponder is located and at least an identification marker for indicating the position of the transponder in a circumferential direction of the pneumatic tire, placed on an outer surface of a side wall portion opposite to a side wall part where the transponder is arranged. JP 2002 214060 A relates to a green tire is vulcanized, in which a transponder where a circuit board on which a sensor and other electronic parts are mounted is closed with a case is embedded between an inner liner and a carcass ply. After the vulcanization, the tip of a protruding part of the case is removed together with a part of the inside wall surface of the tire, and an opening part is formed at the tip of the protruding part so that the inside of the tire airspace communicates with the sensor inside the case. JP 2004 090775 A relates to a pneumatic tire having a film-like electronic device. The film-like electronic device slidable in sheet-like members and disposed on both sides of the film-like electronic device is fitted inside a tire or to a surface of the tire. When the pneumatic tire is fitted to a rim, and the internal pressure is applied to the tire, the sheet-like members and are pulled as the pneumatic tire is inflated and deformed. JP 2016 159713 A relates to a racing slick tire, in which an abrasion degree identifier formed by a hole or a groove is provided at a plurality of places in a tire circumferential direction and/or in a tire width direction of a tread part, and a luminous paint is applied to inner surface of the abrasion degree identifier. The inner surface of the abrasion degree identifier comprises a bottom surface and a side surface, and preferably, the luminous paint is applied only to the side surface in the inner surface. CITATION LIST Patent Literature PTL 1: JP 2004-148953 A SUMMARY (Technical Problem) In the cases of recycling tires in which communication devices are embedded, the communication devices are preferably removed and separated from the tires. When the tires are recycled, the inclusion of resin used in the communication devices may, for example, degrade the quality of recycled rubber. Also, when the tires are recycled, the inclusion of various types of metals used in the communication devices may, for example, require time and effort to separate steel cords of the tires. It would be helpful to provide a tire in which, when a communication device embedded in the tire is removed by hollowing out the tire, it is easy to confirm whether the entirety of the com