WO2011121371A4 - Vulcanizing mould for tyres and method for removing gas from the surface of tyre vulcanizing mould - Google Patents

Vulcanizing mould for tyres and method for removing gas from the surface of tyre vulcanizing mould Download PDF

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Publication number
WO2011121371A4
WO2011121371A4 PCT/HU2011/000026 HU2011000026W WO2011121371A4 WO 2011121371 A4 WO2011121371 A4 WO 2011121371A4 HU 2011000026 W HU2011000026 W HU 2011000026W WO 2011121371 A4 WO2011121371 A4 WO 2011121371A4
Authority
WO
WIPO (PCT)
Prior art keywords
tread
corner
mould
gas
air pocket
Prior art date
Application number
PCT/HU2011/000026
Other languages
French (fr)
Other versions
WO2011121371A1 (en
Inventor
József GYARMATI
Gábor Zacsek
Original Assignee
Kvantex Kft
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kvantex Kft filed Critical Kvantex Kft
Publication of WO2011121371A1 publication Critical patent/WO2011121371A1/en
Publication of WO2011121371A4 publication Critical patent/WO2011121371A4/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/0601—Vulcanising tyres; Vulcanising presses for tyres
    • B29D30/0606—Vulcanising moulds not integral with vulcanising presses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/10—Moulds or cores; Details thereof or accessories therefor with incorporated venting means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/0601—Vulcanising tyres; Vulcanising presses for tyres
    • B29D30/0606—Vulcanising moulds not integral with vulcanising presses
    • B29D2030/0607—Constructional features of the moulds
    • B29D2030/0612—Means for forming recesses or protrusions in the tyres, e.g. grooves or ribs, to create the tread or sidewalls patterns
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/0601—Vulcanising tyres; Vulcanising presses for tyres
    • B29D30/0606—Vulcanising moulds not integral with vulcanising presses
    • B29D2030/0607—Constructional features of the moulds
    • B29D2030/0613—Means, e.g. sipes or blade-like elements, for forming narrow recesses in the tyres, e.g. cuts or incisions for winter tyres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/0601—Vulcanising tyres; Vulcanising presses for tyres
    • B29D30/0606—Vulcanising moulds not integral with vulcanising presses
    • B29D2030/0607—Constructional features of the moulds
    • B29D2030/0616—Surface structure of the mould, e.g. roughness, arrangement of slits, grooves or channels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/0601—Vulcanising tyres; Vulcanising presses for tyres
    • B29D30/0606—Vulcanising moulds not integral with vulcanising presses
    • B29D2030/0607—Constructional features of the moulds
    • B29D2030/0617—Venting devices, e.g. vent plugs or inserts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2030/00—Pneumatic or solid tyres or parts thereof

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)

Abstract

The invention relates to a tyre vulcanizing mould (1 ) having an inner tread surface (3) provided by ribs (4) emerging from the surface (3) and defining tread slots therebetween, and a sharp corner (6) is formed at the junction of the tread surface (3) and the rib (4), the mould (1 ) is provided by means for removing gas from the sharp corner (6) and the surface (3), and the means for removing gas from the sharp corner (6) comprises of an air pocket (7) machined into the lateral surface (8) of the rib (4), adjacent the corner (6). The method for removing gas from the surface of tyre vulcanizing mould comprises steps of machining said air pocket (7) into the lateral surface (8) of the rib (4), adjacent the corner (6), and diverting the gas accumulated during forcing the green tyre (2) tread (5) of a toward the surface (3) of the mould (1 ) into said air pocket (7).

Claims

8 AMENDED CLAIMS received by the International Bureau on 22 September 201 1 (22.09.201 1 )
1. Tyre vulcanizing mould (1 ) having an inner tread forming surface (3) provided by tread groove forming ribs (4) emerging from the surface (3), and a sharp corner (6) is formed at least at the junction of the tread surface (3) and a tread groove forming rib (4), and the mould (1) is provided by means for removing gas from the sharp corner (6) and the surface (3), characterized in that said means for removing gas from the sharp corner (6) and the surface (3) comprises an air pocket (7) accumulating the gas and formed in the surface (8) of the tread groove forming ribs (4), near said corner (6).
2. Tyre vulcanizing mould (1) according to claim 1., characterized in that said air pocket (7) accumulating the gas comprises a cavity extending parallelly to the line of the corner (6) provided at the junction of the surface (3) and the tread grooves forming ribs (4) and having a depth sequentially decreasing toward the corner (6).
3. Tyre vulcanizing mould (1 ) according to claim 1, characterized in that said air pocket (7) accumulating the gas comprises a cavity extending parallelly to the line of the corner (6) provided at the junction of the surface (3) and the tread groove forming ribs (4) and having a depth gradually decreasing toward the corner (6).
4. Tyre vulcanizing mould (1 ) according to claim 1., characterized in that said air pocket (7) accumulating the gas comprises a cavity extending parallelly to the line of the corner (6) provided at the junction of the surface (3) and the tread groove forming ribs (4) and provided by an air channel (4a) directed to the corner (6) and machined into the tread groove forming ribs (4) defining tread grooves.
5. Tyre vulcanizing mould (1 ) according to claim 1, characterized in that said air pocket (7) accumulating the gas comprises a cavity arranged near the corner (6) provided at the junction of the surface (3) and the tread groove forming ribs (4) and provided by an air channel (4b) directed to the corner (6) and machined into the tread groove forming ribs (4) defining tread grooves.
6. Method for removing gas from the surface (3) of a tyre vulcanizing mould (1) and diverting the gas accumulated between the tread surface (5) of a green tyre (2) and the tread forming surface (3) of the mould (1) at the line of a corner (6) formed by junction of tread grooves defining ribs (4) emerging from the tread surface (3) of the mould (1 ) and of said surface (3), while forcing the tread surface (5) of a green tyre toward the tread forming surface (3) of the of the mould (1), characterized by forming an air pocket (7) in the surface (8) of the rib (4) adjacent the corner (6) and diverting the gas accumulated between the tread surface (5) of a green tyre (2) and the tread forming surface (3) of the mould (1) from the tread forming surface (3) and from the corner (6) into air pockets (7) formed in the surface (8) of a tread groove forming rib (4) near the corner (6), while forcing the surface (5) of the green tyre (2) toward the tread forming surface (3) of the mould (1) and accumulating the gas in said air pocket (7).
7. Method according to claim 6., characterized by forming said air pocket (7) accumulating the gas as a cavity extending parallelly to the line of the corner (6) provided at the junction of the surface (3) and the tread groove forming ribs (4) and having a depth continuously decreasing toward the corner (6).
8. Method according to claim 6., characterized by forming said air pocket (7) accumulating the gas as a cavity extending parallelly to the line of the corner (6) provided at the junction of the surface (3) and the tread groove forming ribs (4) and having a depth gradually decreasing toward the corner (6).
9. Method according to claim 6., characterized by forming said air pocket (7) accumulating the gas as a cavity extending parallelly to the line of the corner (6) provided at the junction of the surface (3) and the tread groove forming ribs (4) and providing said cavity (6) by an air channel (4a) directed to the corner (6) and machined into the tread forming ribs (4) defining tread grooves.
10. Method according to claim 6., characterized by forming said air pocket (7) accumulating the gas as a cavity arranged near the corner (6) provided at the junction of the surface (3) and the tread groove forming ribs (4) and providing said cavity (6) by an air channel (4b) directed to the corner (6) and machined into the tread groove forming ribs (4) defining tread grooves.
PCT/HU2011/000026 2010-03-31 2011-03-29 Vulcanizing mould for tyres and method for removing gas from the surface of tyre vulcanizing mould WO2011121371A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
HUP1000171 2010-03-31
HU1000171A HU229849B1 (en) 2010-03-31 2010-03-31 Bag mould and method for draining gas from the cap of the bag mould

Publications (2)

Publication Number Publication Date
WO2011121371A1 WO2011121371A1 (en) 2011-10-06
WO2011121371A4 true WO2011121371A4 (en) 2011-12-08

Family

ID=89989638

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/HU2011/000026 WO2011121371A1 (en) 2010-03-31 2011-03-29 Vulcanizing mould for tyres and method for removing gas from the surface of tyre vulcanizing mould

Country Status (2)

Country Link
HU (1) HU229849B1 (en)
WO (1) WO2011121371A1 (en)

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1474940A (en) * 1966-02-15 1967-03-31 Dunlop Sa Improvements in the molding of parts of rubber or similar substances and, in particular, of tires
DE1800081A1 (en) 1967-12-05 1969-10-02 Yokohama Rubber Co Ltd Vulcanising mould for tyres or other rubber articles
US3553790A (en) * 1969-11-10 1971-01-12 Goodyear Tire & Rubber Concealed tire vent mold
JPS57128532A (en) 1981-02-04 1982-08-10 Du Pont Mitsui Fluorochem Co Ltd Vent plug structure of mold for rubber
DE19628166C2 (en) 1996-07-12 1999-06-24 Continental Ag Process for the production of a pin for venting mold troughs during the shaping and / or vulcanization of rubber articles
DE69810970T2 (en) * 1998-03-25 2003-08-28 Goodyear Tire & Rubber TIRE TREAD WITH 3-D SLATS
KR100544912B1 (en) * 2003-04-14 2006-01-24 금호타이어 주식회사 Tire Curing Mold Improved in Air Exhaust
JP4412054B2 (en) * 2004-05-17 2010-02-10 横浜ゴム株式会社 Tire vulcanization mold
JP4501650B2 (en) 2004-11-25 2010-07-14 横浜ゴム株式会社 Tire mold and tire mold plug
US20060134250A1 (en) * 2004-12-22 2006-06-22 Henrotte Eric M Method and apparatus to vent a mold
JP4999709B2 (en) * 2007-04-16 2012-08-15 東洋ゴム工業株式会社 Sipe blade and tire molded using the same
US7717691B2 (en) * 2007-06-05 2010-05-18 Bridgestone Americas Tire Operations, Llc Tire mold with vent inlet disposed under mold rib

Also Published As

Publication number Publication date
HU229849B1 (en) 2014-10-28
HUP1000171A2 (en) 2012-01-30
HU1000171D0 (en) 2010-05-28
WO2011121371A1 (en) 2011-10-06

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