WO2008065951A1 - 更生タイヤの製造方法 - Google Patents
更生タイヤの製造方法 Download PDFInfo
- Publication number
- WO2008065951A1 WO2008065951A1 PCT/JP2007/072587 JP2007072587W WO2008065951A1 WO 2008065951 A1 WO2008065951 A1 WO 2008065951A1 JP 2007072587 W JP2007072587 W JP 2007072587W WO 2008065951 A1 WO2008065951 A1 WO 2008065951A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- tire
- bag
- bag body
- base tire
- bead
- Prior art date
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)
- B29D30/52—Unvulcanised treads, e.g. on used tyres; Retreading
- B29D30/54—Retreading
- B29D30/542—Retreading using envelopes or membranes provided with sealings for curing
-
- 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
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
-
- 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
Definitions
- the present invention relates to a method for producing a retread tire, and intends to simplify the process for retreading the tire and achieve efficient production.
- tread rubber is removed from the surface of the tire to form a base tire, and an unvulcanized cushion rubber layer is provided on the outer surface of the base tire, and the cushion rubber is further provided.
- a new tread rubber is affixed on the layer, and then a bag such as a rubber tube that resembles a tire shape called an envelope is put on the tire, and then placed in a vulcanizing can for vulcanization.
- a bag such as a rubber tube that resembles a tire shape called an envelope is put on the tire, and then placed in a vulcanizing can for vulcanization.
- the tread rubber since the tread rubber is already vulcanized, it is sufficient to give the heat amount enough to vulcanize the cushion rubber layer (the vulcanization temperature is 120 to 130 ° C). It was also called a cold vulcanization method, and it was said that there was no need for a mold for vulcanization, and that it was particularly beneficial when retreading various, multi-brand, and small amounts of tires.
- the conventional rehabilitation method using an envelope has the following problems and still has room for improvement! /.
- the envelope can be divided into two types: a double envelope in which an outer envelope is disposed on the outer surface portion of the tire, and an inner envelope on the inner surface portion of the tire, and a rim type envelope using a rim.
- a horizontal or vertical expander expansion machine
- a reversing base is indispensable to attach and detach the inner envelope
- the type envelope must have a large number of rims corresponding to the tire size as well as the need for horizontal or vertical expanders. In either case, it is necessary to install equipment and equipment. It is necessary to secure extra space, and the expander The situation is that it is unavoidable to increase the man-hours required for this because it is currently being manually attached and detached. Disclosure of the invention
- An object of the present invention is to propose a new method capable of simplifying the process and performing efficient production.
- the present invention relates to a table on which a tread rubber is attached prior to the heat treatment when the tread rubber is vulcanized and bonded to the table tire by applying a heat treatment after the dread rubber is attached to the table tire.
- a method for producing a retread tire wherein the tire is inserted into a bag made of a resin film, and sealing is performed by sucking air remaining in the bag.
- the annular bead seal rings are respectively provided to both bead portions of the base tire from the outside of the bag body. It is preferable to mount and perform sealing by sucking the air remaining in the bag.
- the resin film has a melting point of 120 ° C or higher.
- polypropylene, polyamide resin, nylon or the like can be applied.
- a bag made of a resin film In order to satisfy these conditions, it is particularly effective to use a bag made of a resin film. This eliminates the need for operations using an expander or reversing table, and the molded tire (with the tread rubber affixed to the table tire) is packed into a bag and the air remaining inside is sucked (vacuum) for sealing. It ’s enough just to do [0012]
- a bag made of a polypropylene resin film can withstand microwave ovens and hot water, and there is no problem. There is a problem with unevenness that bites into an acute angle. The unevenness on the side of the tire or the outer surface of the tire There is no problem with the shape change.
- the film thickness should be 0.1mm or less in order to approximate the tire shape during vacuum.
- FIG. 1 is a diagram schematically showing a molded tire vulcanized according to the present invention.
- FIG. 2 is a perspective view schematically showing a state in which a molded tire is inserted into a bag body.
- FIG. 3 is a view schematically showing a state in which the bead seal ring is fitted and attached to both bead portions of a molded tire through a bag body, ⁇ is a perspective view, b) is a sectional view in the tire width direction.
- FIG. 4 is a view schematically showing a state in which the bead seal ring is fitted and attached to both bead portions of a molded tire through a bag, and (a) is a perspective view. (B) is a sectional view in the tire width direction.
- FIG. 5 (a) is a perspective view schematically showing a state in which the opening of the bag body is closed and sealed
- FIG. 5 (b) is a vulcanized can with the molded tire together with the bag body. It is a schematic diagram showing a state of charging.
- FIG. 6 is a schematic view showing a pressure-bonded state of the opening of the bag body.
- FIG. 7 is a perspective view schematically showing another bag body applicable to the method for producing a retread tire of the present invention.
- FIG. 1 schematically show a procedure for vulcanizing a retread tire according to the present invention.
- molded tire 2 shown in FIG. 1 is made of a polypropylene film as shown in FIG.
- Put in the bag 3 consisting of This film preferably has a melting point of 120 ° C. or higher so that it can withstand the temperature during vulcanization.
- FIG. 1 shows a melting point of 120 ° C. or higher so that it can withstand the temperature during vulcanization.
- an annular bead seal ring 5 that prevents the deformation of the molded tire 2 is connected to both beads of the molded tire 2 through the bag 3. Fit into part 2a.
- a through hole 3 c that penetrates the bag body 3 on the front and back sides is provided in a region P surrounded by the bead seal ring 5.
- the through hole 3c may be provided in each region P surrounded by both bead seal rings 5, or may be provided in a region P surrounded by one of the bead seal rings 5.
- FIGS. 5 (a) and 6 the opening 3a of the bag 3 is closed and sealed, for example, by pressure bonding or fusion.
- the molded tire 2 is put into the vulcanizing can 1 together with the bag 3, and the air remaining in the bag 3 is passed through, for example, a vacuum path 4 (vacuum valve or the like). And suck.
- a vacuum path 4 vacuum valve or the like
- the space S formed between the bag body 3 and the molded tire 2 (see FIG. 4 (b)).
- the molded tire 2 is heat-treated under desired conditions. After the heat treatment, the bag 3 is cut and the tire is taken out.
- the order of the sealing of the opening 3a of the bag 3 and the suction of the remaining air in the bag 3 performed via the vacuum path 4 is not limited to the above. After the air remaining in the body 3 is sucked through the vacuum path 4, as shown in FIG. 6, the opening 3a of the bag 3 can be closed and sealed by pressure bonding or fusion.
- the bead seal ring 5 is fitted into the bead portions 2a of the molded tire 2 from the outside of the bag body 3 and then mounted, and then surrounded by the bead seal ring 5.
- a through-hole 3c that penetrates the bag body 3 on the front and back sides is provided in the area P.
- the through-hole 3c may be formed in advance before the molded tire 2 is inserted into the bag body 3 or molded.
- bead seal ring 5 is fitted to both bead portions 2a of molded tire 2. It may be formed in advance before embedding.
- the through-hole 3c is to be surrounded by the bead seal ring 5 when the bead seal ring 5 is attached to the bead portion 2a of the molded tire 2 via the bag body 3. It must be formed in advance in the region P1.
- the used bag 3 is heated during vulcanization and cannot be reused.
- 1S can be recycled as a bag by recycling, so resources can be used effectively.
- the annular bead seal rings 5 are respectively attached to both bead portions 2a of the molded tire 2 from the outside of the bag body 3. Deformation of the molded tire 2 during vulcanization is prevented.
- Tread rubber is pasted on the base tire (cold rehabilitation) to form a molded tire, which is:
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Tyre Moulding (AREA)
- Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
- Tires In General (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BRPI0719385-8A2A BRPI0719385A2 (pt) | 2006-11-29 | 2007-11-21 | Método para a produção de pneumático e recauchutado |
EP07832317A EP2085200A4 (en) | 2006-11-29 | 2007-11-21 | METHOD FOR MANUFACTURING A RECHARGED TIRE |
US12/515,505 US20100012256A1 (en) | 2006-11-29 | 2007-11-21 | Method of producing retreaded tire |
JP2008546959A JPWO2008065951A1 (ja) | 2006-11-29 | 2007-11-21 | 更生タイヤの製造方法 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006-322119 | 2006-11-29 | ||
JP2006322119 | 2006-11-29 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2008065951A1 true WO2008065951A1 (ja) | 2008-06-05 |
WO2008065951A8 WO2008065951A8 (ja) | 2008-12-11 |
Family
ID=39467744
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2007/072587 WO2008065951A1 (ja) | 2006-11-29 | 2007-11-21 | 更生タイヤの製造方法 |
Country Status (6)
Country | Link |
---|---|
US (1) | US20100012256A1 (ja) |
EP (1) | EP2085200A4 (ja) |
JP (1) | JPWO2008065951A1 (ja) |
CN (1) | CN101541498A (ja) |
BR (1) | BRPI0719385A2 (ja) |
WO (1) | WO2008065951A1 (ja) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010162820A (ja) * | 2009-01-19 | 2010-07-29 | Bridgestone Corp | 空気入りタイヤの製造方法 |
WO2014115437A1 (ja) | 2013-01-23 | 2014-07-31 | 積水化学工業株式会社 | リサイクル材料の製造方法、タイヤ及びタイヤの製造方法 |
JP2018202802A (ja) * | 2017-06-08 | 2018-12-27 | 横浜ゴム株式会社 | ラジアルタイヤの製造方法および装置 |
JP2018202803A (ja) * | 2017-06-08 | 2018-12-27 | 横浜ゴム株式会社 | タイヤの製造方法および装置 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106239955A (zh) * | 2016-08-26 | 2016-12-21 | 芜湖市南陵县众鑫橡胶有限公司 | 一种轮胎翻新工艺 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55177421U (ja) * | 1979-06-08 | 1980-12-19 | ||
JPH02293107A (ja) * | 1989-05-09 | 1990-12-04 | Bridgestone Corp | プレキュアトレッドを用いたタイヤの製造方法 |
JPH10193472A (ja) * | 1997-01-08 | 1998-07-28 | Yokohama Rubber Co Ltd:The | 空気入りタイヤの製造方法 |
JP2006281683A (ja) * | 2005-04-04 | 2006-10-19 | Bridgestone Corp | 更生タイヤの製造方法 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2976910A (en) * | 1958-12-19 | 1961-03-28 | Bandag Inc | Method and material for retreading pneumatic tire casings |
US3884740A (en) * | 1973-09-20 | 1975-05-20 | Wilhelm Schelkmann | Method of retreading tires |
US4634357A (en) * | 1985-11-08 | 1987-01-06 | Bandag Licensing Corporation | Bead seal ring unit |
US5123985A (en) * | 1986-09-02 | 1992-06-23 | Patricia Evans | Vacuum bagging apparatus and method including a thermoplastic elastomer film vacuum bag |
US4850834A (en) * | 1987-12-30 | 1989-07-25 | The Hercules Tire And Rubber Company | Retread ring |
US7581911B2 (en) * | 2002-09-18 | 2009-09-01 | Utility Composites International Limited | Plastic impact driven fasteners |
-
2007
- 2007-11-21 WO PCT/JP2007/072587 patent/WO2008065951A1/ja active Application Filing
- 2007-11-21 BR BRPI0719385-8A2A patent/BRPI0719385A2/pt not_active Application Discontinuation
- 2007-11-21 CN CNA2007800437755A patent/CN101541498A/zh active Pending
- 2007-11-21 US US12/515,505 patent/US20100012256A1/en not_active Abandoned
- 2007-11-21 EP EP07832317A patent/EP2085200A4/en not_active Withdrawn
- 2007-11-21 JP JP2008546959A patent/JPWO2008065951A1/ja active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55177421U (ja) * | 1979-06-08 | 1980-12-19 | ||
JPH02293107A (ja) * | 1989-05-09 | 1990-12-04 | Bridgestone Corp | プレキュアトレッドを用いたタイヤの製造方法 |
JPH10193472A (ja) * | 1997-01-08 | 1998-07-28 | Yokohama Rubber Co Ltd:The | 空気入りタイヤの製造方法 |
JP2006281683A (ja) * | 2005-04-04 | 2006-10-19 | Bridgestone Corp | 更生タイヤの製造方法 |
Non-Patent Citations (1)
Title |
---|
See also references of EP2085200A4 * |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010162820A (ja) * | 2009-01-19 | 2010-07-29 | Bridgestone Corp | 空気入りタイヤの製造方法 |
WO2014115437A1 (ja) | 2013-01-23 | 2014-07-31 | 積水化学工業株式会社 | リサイクル材料の製造方法、タイヤ及びタイヤの製造方法 |
EP3763518A1 (en) | 2013-01-23 | 2021-01-13 | Sekisui Chemical Co., Ltd. | Method for producing a tire |
US10899968B2 (en) | 2013-01-23 | 2021-01-26 | Sekisui Chemical Co., Ltd. | Method for producing recycled material, and tire and method for producing tire |
US11492554B2 (en) | 2013-01-23 | 2022-11-08 | Sekisui Chemical Co., Ltd. | Method for producing recycled material, and tire and method for producing tire |
JP2018202802A (ja) * | 2017-06-08 | 2018-12-27 | 横浜ゴム株式会社 | ラジアルタイヤの製造方法および装置 |
JP2018202803A (ja) * | 2017-06-08 | 2018-12-27 | 横浜ゴム株式会社 | タイヤの製造方法および装置 |
Also Published As
Publication number | Publication date |
---|---|
US20100012256A1 (en) | 2010-01-21 |
CN101541498A (zh) | 2009-09-23 |
JPWO2008065951A1 (ja) | 2010-03-04 |
EP2085200A4 (en) | 2012-12-26 |
EP2085200A1 (en) | 2009-08-05 |
BRPI0719385A2 (pt) | 2014-02-18 |
WO2008065951A8 (ja) | 2008-12-11 |
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