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Tire vulcanizing mold, tire manufacturing method, and tire

一种轮胎硫化、轮胎宽度方向的技术，应用在家里用具、轮胎零部件、其他家里用具等方向，能够解决生产性下降等问题，达到抑制生产成本、确保质量、改善可作业性的效果

Active Publication Date: 2016-09-21
BRIDGESTONE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This cleaning operation takes a lot of time, and productivity decreases due to the increase in manufacturing stop time accompanying cleaning

Method used

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  • Tire vulcanizing mold, tire manufacturing method, and tire
  • Tire vulcanizing mold, tire manufacturing method, and tire
  • Tire vulcanizing mold, tire manufacturing method, and tire

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0038][First Embodiment] (Configuration of Tire Vulcanizer)

[0039] First, refer to figure 1 The configuration of the tire vulcanizer according to the first embodiment of the present invention will be described. figure 1 is a sectional view of a part of the tire vulcanizing apparatus according to the present embodiment. Such as figure 1 As shown, the tire vulcanization device is mainly provided with a mold 1 for tire vulcanization and an airbag B.

[0040] The mold 1 for tire vulcanization has a tread ring 100 and a pair of side rings 200 , 300 .

[0041] When the tread ring 100 and the pair of side rings 200 , 300 are in contact with each other, a vulcanization space (also referred to as a cavity) capable of accommodating an unvulcanized tire T is formed inside the tire vulcanization mold 1 . Here, in the drawings, the illustration of the carcass layer and the belt layer provided in the unvulcanized tire T is omitted.

[0042] The tread ring 100 has a tread inner periph...

Embodiment approach

[0113] As described above, the contents of the present invention have been disclosed by means of the embodiments of the present invention, however, the description and drawings forming a part of the present disclosure should not be understood as limiting the present invention.

[0114] In the first embodiment, as one aspect, the circumferential groove portion 500 is formed only in the upper side ring 200 . However, the circumferential groove portion 500 may be formed not only in the upper side ring 200 but also in the heel forming area A332 (another heel forming area) of the lower side ring 300 . In this case, in the side ring 310 arranged on the lower side in the vertical direction V, the side ring inner peripheral surface 311 (tire molding surface) of the side ring 310 and the bead ring inner peripheral surface 321 of the bead ring 320 The parting position 300D between (tyre molding surfaces) can be arranged at the groove bottom 501 of the circumferential groove portion 500 ...

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Abstract

A tire vulcanizing mold (1) for molding an unvulcanized tire (T) into a pneumatic tire (T1) having a bead portion (30) with a bead heel portion (32) is provided with a side portion ring (200) for molding at least the bead portion (30). A circumferential groove portion (500) extending in the tire circumferential direction is formed on a tire molding surface of the side portion ring (200) in a heel molding region for molding the bead heel portion (32), the side portion ring (200) is divided into a side ring (210) and a bead ring (220) that abuts against the side ring (210), the division position of the tire molding surface of the side ring (210) and the tire molding surface of the bead ring (220) is located in the groove bottom (501) of the circumferential groove portion (500), and the cross sectional shape of the circumferential groove portion (500) tapers toward the groove bottom.

Description

technical field [0001] The present invention relates to a tire vulcanization mold for vulcanization molding of an unvulcanized tire, a tire manufacturing method and a tire using the tire vulcanization mold. Background technique [0002] Generally, the manufacturing process of a pneumatic tire includes a vulcanization step of subjecting an unvulcanized pneumatic tire (so-called green tire or green tire) to a vulcanization reaction. In the vulcanization step, the unvulcanized tire is vulcanized by using a vulcanization apparatus provided with a mold for tire vulcanization for forming a tread portion, a sidewall portion, a bead portion, and the like. In addition, the mold for tire vulcanization has a bead ring for forming a bead portion of an unvulcanized tire. [0003] Here, the bead portion includes an arcuate heel portion formed to protrude outward in the tire width direction, so the bead portion has a complicated shape. Therefore, when the unvulcanized tire is vulcanized ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C33/02B29C35/02B29K21/00B29K105/24B29L30/00
CPCB29C33/42B29C33/424B29D30/0606B29D2030/0612B29D2030/0617B29D2030/0621B29D2030/0626B29K2105/246B60C15/0206
Inventor 大岛雅知
Owner BRIDGESTONE CORP