IP Library › Granted Patent US 11,052,623
Granted Patent B2
US 11,052,623 · App. 16/733,437 · Granted Jul 6, 2021

Tire cure mold and method for manufacturing tire

Inventor: Isao Yonetsu (Itami, JP)
Assignee: TOYO TIRE CORPORATION
B29D30/0606B29C33/306B29C33/424B29D2030/0612B29D2030/0616
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Quick Facts
Patent No.
US 11,052,623
App. No.
16/733,437
Granted
Jul 6, 2021
Kind
B2
Abstract

A tire cure mold has a tire molding face, a mounting groove provided to the tire molding face and a stencil plate mounted into the mounting groove. The stencil plate has a front face that faces a cavity, a back face that faces a bottom face of the mounting groove, and a through hole extending from the front face to the back face. A recessed portion for forming a protruding identification mark on the outer surface of the tire is provided to the front face. A first protruding portion corresponding to the recessed portion is provided to the back face. A second protruding portion that protrudes toward the bottom face of the mounting groove is provided to an outer edge portion of the stencil plate at least at a periphery of the through hole.

Claims (22)

1. A tire cure mold comprising:

a tire molding face that comes in contact with an outer surface of a tire set in a cavity;

a mounting groove provided to the tire molding face; and

a stencil plate mounted into the mounting groove,

wherein

the stencil plate has a front face that faces the cavity, a back face that faces a bottom face of the mounting groove, a side end portion, and a through hole extending from the front face to the back face,

a recessed portion disposed on the front face, the recessed portion forming a protruding mark on the outer surface of the tire,

a first protruding portion corresponding to the recessed portion is disposed on the back face, and

a second protruding portion is disposed at an outer edge portion of the stencil plate at least at a periphery of the through hole, the second protruding portion being bent to have the side end portion of the stencil plate be in a U shape and an end face of the side end portion of the stencil plate facing the cavity.

2. The tire cure mold according to claim 1 , wherein the second protruding portion is provided throughout a circumference along the outer edge portion of the stencil plate.

3. The tire cure mold according to claim 1 , wherein a protruding height of the second protruding portion is equal to a protruding height of the first protruding portion.

4. The tire cure mold according to claim 1 , wherein a protruding height of the second protruding portion is greater than a protruding height of the first protruding portion.

5. A method for manufacturing a tire, comprising a step of curing the tire by use of the tire cure mold according to claim 1 .

6. A tire cure mold comprising:

a tire molding face that comes in contact with an outer surface of a tire set in a cavity;

a mounting groove provided to the tire molding face; and

a stencil plate mounted into the mounting groove,

wherein

the stencil plate has a front face that faces the cavity, a back face that faces a bottom face of the mounting groove, a side end portion, and a through hole extending from the front face to the back face,

a recessed portion disposed on the front face, the recessed portion forming a protruding mark on the outer surface of the tire,

a first protruding portion corresponding to the recessed portion is disposed on the back face, and

a second protruding portion is disposed at an outer edge portion of the stencil plate at least at a periphery of the through hole, the second protruding portion having a substantially annular shape with the side end portion being rolled toward a side of the back face and an end face of the side end portion of the stencil plate facing the cavity.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 3, 2020
From: YONETSU, ISAO
To: TOYO TIRE CORPORATION
Reel/Frame 051408/0361 →
Priority Claims (1)
JP JP2019-014251 · Jan 30, 2019 · national
Continuity (1)
Related Publication 20200238646A1 · Jul 30, 2020