Unlock instant, AI-driven research and patent intelligence for your innovation.

Tire vulcanization mold, and tire manufacturing method using the tire vulcanization mold

A technology of tire vulcanization molds and templates, which is applied in the field of tire manufacturing and can solve problems such as unstable assembly postures

Active Publication Date: 2021-08-20
TOYO TIRE & RUBBER CO LTD
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] When the template 100 forming such a convex mark is attached to the mounting recess 120, since the template 100 has a plurality of convex portions 102 formed on the back side thereof, the mounting posture is unstable.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Tire vulcanization mold, and tire manufacturing method using the tire vulcanization mold
  • Tire vulcanization mold, and tire manufacturing method using the tire vulcanization mold
  • Tire vulcanization mold, and tire manufacturing method using the tire vulcanization mold

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0032] figure 1 It is a diagram showing a tire vulcanization mold (hereinafter simply referred to as a vulcanization mold) 10 for vulcanizing and molding a pneumatic tire T according to one embodiment. Here, the pneumatic tire T is configured to include: a tread portion T1 constituting a contact surface; a pair of sidewall portions T2, T2 extending inwardly in the tire radial direction from both ends of the tread portion T1 in the width direction; and bead portions T3, T3. . The pneumatic tire T may adopt a general tire structure except for the logo provided on the sidewall portion T4. Here, the sidewall portion T4 is a concept including the sidewall portion T2 and the bead portion T3.

[0033] The vulcanization mold 10 is a mold in which an unvulcanized raw tire is set and vulcanized. The vulcanizing mold 10 includes: a tread mold 12 having a tread molding surface 12A for molding the outer surface of the tread portion T1; the sidewall forming surfaces 14A, 14A; a pair of...

no. 2 approach

[0058] Image 6 It is a figure which shows the installation state of the template 20 to the installation recessed part 22 of 2nd Embodiment. The second embodiment differs from the first embodiment in that a recess 50 for accommodating the periphery 28 of the template 20 is provided on the opening periphery 29 of the mounting recess 22 .

[0059] Such as Image 6 As shown in (A) to (C), the opening peripheral portion 29 of the mounting recess 22 is provided with a concave portion 50 recessed stepwise with respect to the sidewall molding surface 18A over the entire circumference of the opening of the mounting recess 22 . The concave portion 50 is a relatively shallow concave portion that receives the peripheral portion 28 of the template 20 , and is formed to have the same depth as the thickness of the peripheral portion 28 in this example.

[0060] Thereby, the peripheral edge part 28 of the template 20 can be made to be the same surface (that is, the same plane) as the sidew...

no. 3 approach

[0064] Figure 7 It is a figure which shows the mounting state of the template 20 to the mounting recessed part 22 of 3rd Embodiment. In the third embodiment, the difference from the first embodiment is that a stepped portion 52 is provided on the peripheral portion 28 of the template 20 , and the stepped portion 52 is fitted with the inner side of the opening peripheral portion 29 of the mounting recess 22 . way into the back 20B side.

[0065] Such as Figure 7 As shown in (A) to (C), in the peripheral portion 28 of the template 20 , a stepped portion 52 that sinks downward in a stepped shape is formed over the entire circumference of the opening of the mounting recess 22 . The stepped portion 52 is a vertical wall portion that connects the main body portion 54 formed with the convex portion 26 and the peripheral portion 28 , and the main body portion 54 and the peripheral portion 28 at a raised position relative to the main body portion 54 pass through the stepped portion...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

Technical problem: Suppress generation of flash in an apparatus having a template for forming a convex mark. Solution: The tire vulcanization mold (10) is provided with: a sidewall forming surface (18A), a template (20) for forming a logo that forms a convex logo (T5) on the outer surface of the sidewall part (T5), and a template (20) installed on the sidewall An installation recess (22) on the molding surface, and a screw (30) for fixing the template to the installation recess. The template (20) is formed larger than the mounting recess (22) so as to cover the mounting recess, and a peripheral edge (28) of the template abuts against an opening peripheral edge (29) of the mounting recess.

Description

technical field [0001] Embodiments of the present invention relate to a tire vulcanization mold for vulcanizing and molding a tire, and a tire manufacturing method using the tire vulcanization mold. Background technique [0002] In general, in order to easily identify the manufacturer, type, size, year of manufacture, week, etc. of the tire, marks such as letters, symbols, or figures are provided on the outer surface of the sidewall portion of the pneumatic tire. In order to form such markings, there is known a technique of attaching, replaceably, a template made of a metal plate such as aluminum or iron to the sidewall side forming surface of a vulcanization mold. [0003] Conventionally, the above-mentioned mark has been formed in a concave shape on the outer surface of the sidewall portion. In recent years, it is desired to form a mark in a convex shape, and techniques for forming a mark in a convex shape have been proposed (see Patent Documents 1 to 3). [0004] As an ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B29C33/42B29L30/00
CPCB29D30/0606B29D2030/0612B29D30/72B29D2030/0616B29D2030/726B29C33/424B29D30/0662B29C33/306
Inventor 米津功
Owner TOYO TIRE & RUBBER CO LTD