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1. WO2021045038 - TIRE FORMING MOLD

Publication Number WO/2021/045038
Publication Date 11.03.2021
International Application No. PCT/JP2020/033028
International Filing Date 01.09.2020
IPC
B29L 30/00 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C59
30Pneumatic or solid tyres or parts thereof
B29C 33/02 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
33Moulds or cores; Details thereof or accessories therefor
02with incorporated heating or cooling means
B29C 35/02 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
35Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
02Heating or curing, e.g. crosslinking or vulcanising
CPC
B29C 33/02
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
33Moulds or cores; Details thereof or accessories therefor
02with incorporated heating or cooling means
B29C 35/02
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
35Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
02Heating or curing, e.g. crosslinking or vulcanizing ; during moulding, e.g. in a mould
Applicants
  • 株式会社ブリヂストン BRIDGESTONE CORPORATION [JP]/[JP]
Inventors
  • 二本木 聡 NIHONGI, Satoshi
Agents
  • 根本 恵司 NEMOTO, Keiji
Priority Data
2019-15936202.09.2019JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) TIRE FORMING MOLD
(FR) MOULE DE FORMATION DE PNEUMATIQUE
(JA) タイヤ成型用モールド
Abstract
(EN)
This tire forming mold having a simple structure easily opens and closes a plurality of segments for forming a tread portion of a tire. The plurality of segments (5) are biased to the outside (R2) in a tire radial direction (R) by means of a biasing mechanism. The segments (5) each have a first contact part (5B) that comes into contact with an outer ring (6) moving to one side in a tire width direction (W) and a second contact part (5C) that comes into contact with the outer ring (6) moving to the other side in the tire width direction (W). The outer ring (6) has: a first slide portion (6D) with which the first contact part (5B) is slidably in contact and which pushes the first contact part (5B) toward the inside (R1) in the tire radial direction (R); and a second slide portion (6E) with which the second contact part (5C) is slidably in contact and which pushes the second contact part (5C) toward the outside (R2) in the tire radial direction (R).
(FR)
La présente invention concerne un moule de formation de pneumatique ayant une structure simple ouvrant et fermant facilement une pluralité de segments pour former une portion bande de roulement d’un pneumatique. La pluralité des segments (5) sont sollicités vers l’extérieur (R2) dans un sens radial du pneumatique (R) à l’aide d’un mécanisme de sollicitation. Les segments (5) présentent chacun une première partie de contact (5B) qui entre en contact avec un anneau externe (6) se déplaçant vers un côté dans un sens de la largeur du pneumatique (W) et une seconde partie de contact (5C) qui entre en contact avec l’anneau externe (6) se déplaçant vers l’autre côté dans le sens de la largeur du pneumatique (W). L’anneau externe (6) présente : une première portion coulissante (6D) avec laquelle la première partie de contact (5B) se trouve en contact coulissant et qui pousse la première partie de contact (5B) vers l’intérieur (R1) dans le sens radial du pneumatique (R) ; et une seconde portion coulissante (6E) avec laquelle la seconde partie de contact (5C) se trouve en contact coulissant et qui pousse la seconde partie de contact (5C) vers l’extérieur (R2) dans le sens radial du pneumatique (R).
(JA)
簡易な構造のタイヤ成型用モールドにより、タイヤのトレッド部を成型する複数のセグメントを容易に開閉する。 複数のセグメント(5)は、付勢機構により、タイヤ半径方向(R)の外側(R2)に付勢される。セグメント(5)は、タイヤ幅方向(W)の一方側に移動するアウターリング(6)と接触する第1接触部(5B)と、タイヤ幅方向(W)の他方側に移動するアウターリング(6)と接触する第2接触部(5C)を有する。アウターリング(6)は、第1接触部(5B)がスライド可能に接触して、第1接触部(5B)をタイヤ半径方向(R)の内側(R1)に押す第1スライド部(6D)と、第2接触部(5C)がスライド可能に接触して、第2接触部(5C)をタイヤ半径方向(R)の外側(R2)に押す第2スライド部(6E)を有する。
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