Tire vulcanizing apparatus

Patent metadata

Field	Value
Publication number	US-9738043-B2
Application number	US-201615287855-A
Country	US
Kind code	B2
Filing date	Oct 7, 2016
Priority date	Oct 8, 2015
Publication date	Aug 22, 2017
Grant date	Aug 22, 2017

Abstract

An apparatus for vulcanizing a tire comprises: a side mold segment provided with a face for shaping the outer surface of a tire sidewall portion, and an opposite face not serving for shaping; and a heater part for vulcanizing the raw tire. The heater part is disposed adjacently to the side mold segment to heat the raw tire abutting on the side-shaping-face from the side of the face not serving for shaping. The side mold segment is provided with a flow path through which a first fluid whose temperature is lower than the vulcanization temperature of the raw tire can flow to prevent over-vulcanization of the sidewall portion.

First claim

The invention claimed is:

1. An apparatus for vulcanizing a raw tire comprising:
a side mold segment provided with a side-shaping-face for shaping an outer surface of a sidewall portion of the raw tire, and a face being opposite to the side-shaping-face and not serving for shaping, and
a heater part for vulcanizing the raw tire, the heater part disposed adjacently to the side mold segment to heat the raw tire abutting on the side-shaping-face from the side of the face not serving for shaping,
wherein the side mold segment is provided with a flow path comprising a supply port portion for being supplied with a first fluid whose temperature is lower than a vulcanization temperature of the raw tire, a discharge port portion for discharging the first fluid, and a main portion extending between the supply port portion and the discharge port portion,

said apparatus further comprising:
a rubber bladder which is inflatable to shape an inner surface of the raw tire, and
a supply path which is for supplying to the rubber bladder a second fluid for inflating the rubber bladder, and to which the discharge port portion is connected.

2. The tire vulcanizing apparatus according to claim 1 , wherein
the main portion of the flow path extends circumferentially of the tire along the side-shaping-face.

3. The tire vulcanizing apparatus according to claim 1 , wherein
the flow path is formed by a groove denting from the face not serving for shaping toward the side-shaping-face.

4. The tire vulcanizing apparatus according to claim 2 , wherein
the flow path is formed by a groove denting from the face not serving for shaping toward the side-shaping-face.

Assignees

• Sumitomo Rubber Ind

Inventors

• Imamura Ao
• Tsunoda Masaya
• Kuchiki Shinji

Classifications

• B29D30/0662 Primary

  Accessories, details or auxiliary operations · CPC title

• B29C35/049

  using steam or damp · CPC title

• B29D30/0643 Primary

  Cooling during post cure inflation; Post cure inflators used therefor · CPC title

• B29D30/0606

  Vulcanising moulds not integral with vulcanising presses (for solid tyres B29D30/02) · CPC title

• B29D2030/0677

  Controlling temperature differences · CPC title