CA2149270A1 - Process for retreading a used tire - Google Patents
Process for retreading a used tireInfo
- Publication number
- CA2149270A1 CA2149270A1 CA 2149270 CA2149270A CA2149270A1 CA 2149270 A1 CA2149270 A1 CA 2149270A1 CA 2149270 CA2149270 CA 2149270 CA 2149270 A CA2149270 A CA 2149270A CA 2149270 A1 CA2149270 A1 CA 2149270A1
- Authority
- CA
- Canada
- Prior art keywords
- tire
- running tread
- binder rubber
- tread
- running
- Prior art date
- Legal status (The legal status 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 status listed.)
- Abandoned
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
- B29D30/56—Retreading with prevulcanised tread
-
- 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
- B29D2030/523—Ring-shaped treads
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Tyre Moulding (AREA)
- Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
Abstract
Process for retreading a used tire (2), whereby the running tread of the tire (2) is ground off and/or roughened, whereby a layer (3) of a binder rubber is further applied onto the surface of the tire, a closed ring of a new running tread (1) is applied over the binder rubber (3), the air between the binder rubber (3) and the running tread (1) is removed, and the running tread (1) is attached to the tire (2) by vulcanizing the binder rubber (3) located between the running tread (1) and the tire (2). A plurality of mutually inter-connected channels (12) are thereby provided between the binder rubber (3) and the inside surface of the running tread (1), which channels (12) terminate at a distance from the lateral edges of the running tread (1) and which communicate with at least one opening (14) extending through the running tread (1), after the running tread (1) has been placed on the tire (2) the lateral edges (13) of the running tread (1) are air-tightly connected with the sidewalls of the tire (2) by vulcanizing the binder rubber located there, the air located between the remaining running tread (1) and the binder rubber (3) is aspirated off through the channels (12) and through the least one opening (14) provided in the running tread (1), and the remaining running tread (1) is subsequently attached at the tire (2) by vulcanizing the binder rubber (3) between the running tread (1) and the tire (2).
Description
The present invention pertains to a process for retreading a used tire, whereby the running surface of the tire is ground off and/or roughened, a layer of a binder rubber is applied to the surface of the tire, a closed ring of a new running tread is applied onto the binder rubber, the air is removed between the binder rubber and the running tread, and the running tread is connected to the tire by vulcanizing the binder rubber disposed between the tread and the tire.
It has been known heretofore to make used tires of motor vehicles available for further use in that a new running tread is applied onto their surface. This is based on the premise that the use of tires causes the running tread to be removed by way of friction, so that they do no longer provide the necessary profile, while the fabric carrying the running tread, the so-called carcass, remains undamaged. When, at that point, a new running tread is applied onto the undamaged carcass of a vehicle tire, a tire is created which fully meets the traffic-technological requirements.
The mounting of a new running tread onto a used tire, which is referred to a retreading, is particularly economical with large diameter tires. These are tires for trucks, propelled machines, such as earth movers, excavating machines, planing vehicles, and the like.
Retreading of vehicle tires is effected in that a used tire is ground down and/or roughened. Subsequently, a rubber solution is sprayed onto the surface of the tire, and a layer of a binder rubber, which is necessary for vulcanization, is applied thereon. It is thereby necessary to guard against the inclusion of air pockets between the surface of the tire and the binder rubber. This is assured in that the layer of the binder rubber is rolled thereon.
Subsequently, a closed ring of a new running tread is aplied onto the tire. This is effected in that the annular running tread is radially stretched with a pulling device, which is provided with gripper arms, enough as to allow the tread to be placed over the tire provided with the binder rubber. Then the gripper arms of the pulling device are laterally pulled from between the tire and the annular running tread, whereby the running tread comes to lie on the surface of the tire and tightly enclose the tire. In the further sequence, the tire provided with the new running tread is exposed in an autoclave to a pressure of about 5 bar and a temperature of about 100C, which causes the binder rubber to vulcanize. The new running tread is thereby permanently attached to the carcass of the used tire.
An essential requirement for attaining the necessary connection of the new running tread with the carcass is that no air pockets remain between the binder rubber and the ~ -- 21~9270 4 annular running tread, because otherwise no connection would be effected between the running tread and the carcass in the area of the air pockets. In efforts to avoid such air inclusions, due to which retreaded tires do not meet the traffic-technological requirements, several measures have been proposed heretofore.
It is known from AT-PS 305 061, from AT-PS 353 119, and from AT-PS 357 423 to enclose the tire provided with the running tread partly or entirely with an elastic, air-tightly closed sleeve, and to evacuate the inside of the sleeve before and during the vulcanization process. The difficulty arises thereby, however, that the air pressure existing on the outside of the sleeve presses the wedge-shaped lateral edges of the running tread onto the side flanks of the tire so strongly as to cause an airtight closure, so that in spite of the vacuum existing in the sleeve, air enclosures between the running tread and the tires are not removed. Additionally, that process requires a sleeve formed of a rubber-type material to enclose the tire at least partially, which sleeve is also subject to heating in the autoclave and thus to such stresses so as to make it suitable for only a limited number of uses. Because the sleeve becomes frail and air-permeable, air may pass through during the vulcanization process and in between the carcass and the running tread, which may also cause faults in the retreading. The fact that the retreading of tires with large diameters necessitates correspondingly large sleeves causes great material requirements, wherein that process is also not economical.
It is further known from AT-PS 353 119 to form the inner surface of the running tread with a plurality of channels, through which air can be aspirated from between the running tread and the tire. This too, however, requires a sleeve enclosing the tire fully and air-tightly, which sleeve is suitable for only a few assignments.
Furthermore, it is known from AT-PS 296 799 to mount the annular running tread onto the tire within an evacuated container. The tire is inserted into the container for that purpose, the running tread is disposed radially near the tire, and the container is subsequently closed and evacuated.
Only then is the running tread placed on the tire. In this, air enclosures between the tire and the running tread are safely avoided. That process brings with it the disadvantage of great technical expense, in that it requires an evacuated container with a stretching device.
The present invention is therefore based on the object to provide a process which avoids the disadvantages associated with the prior state of the art. This is attained in accordance with the invention in that a plurality of mutually interconnected channels are provided between the binder rubber and the inside surface of the annular running tread, which channels terminate at a distance from the lateral edges of the running tread and which communicate with at least one opening extending through the running tread, in that after the running tread has been placed on the tire the lateral edges of the running tread are air-tightly connected with the sidewalls of the tire by vulcanizing the binder rubber located there, in that the air located between the remaining running tread and the binder rubber is subsequently aspirated off through at least one opening in the running tread and that thereafter the remaining running tread is attached to the tire by vulcanizing the binder rubber located between the running tread and the tire.
The process according to the invention is based on the premise that that function which is satisfied in the prior art with the tire-enclosing sleeve, can be satisfied by the annular running tread itself, as long as the same is air-tightly connected with the tire along its lateral edges.
Due to the fact that, in accordance with the invention, air enclosures located between the tire and the running tread can be removed through an opening extening through the running tread, the use of a sleeve can be done away with, whereby the disadvantages associated with the sleeve are avoided. Since further a plurality of mutually interconnected channels are provided between the running tread and the tire, any air enclosures are dependably removed, whereby this process avoids all of the disadvantages associated with the prior art processes.
On the inside surface of the running tread there are preferably provided a plurality of mutually interconnecting channels, which terminate at a distance from the lateral edges of the running tread, and which are particularly formed as mutually crossing, web-like channels.
Analogously, a plurality of mutually interconnected channels may be located at the upper surface of the binder rubber applied on the tire. They can thereby be produced in that a first layer of binder rubber is applied on the tire, onto which a second layer of preferably strip-shaped sections of the binder rubber are applied, whereby channels are disposed between the sections. The first layer of the binder rubber can thereby be plate-shaped and the second layer of the binder rubber can be formed by strips, which are applied on the first layer in the form of a multiply interrupted spiral.
Furthermore, the inside surface of the running tread is preferably formed with at least one transversely extending channel from which the opening extending through the running tread originates. In accordance with a preferred embodiment, the tire with the running tread is inserted into an autoclave and the evacuation of the air from between the running tread and the binder rubber continues during the vulcanizing process in the autoclave.
The process according to the invention is explained in more detail in the following with the aid of the exemplary embodiments illustrated in the drawing. There is shown:
ig. 1 a running tread for use with the process according to the invention, in an axonometric view, Fig. la a section of the running tread according to Fig.
1, in an axonometric view and in section, Figs. 2 and 2a two embodiments of a tire coated with a binder rubber, in section, Fig. 3 a tire with a running tread, in a first stage of the process according to the invention, in section, Fig. 4 the tire with the running tread according to Fig. 4 in a second stage of the process according to the invention, in section, and Fig. 5 an autoclave with a tire disposed therein, in section.
As illustrated in Figs. 1 and la, a running tread 1 which is provided for retreading a used and ground-off tire, is formed as a closed ring, which is provided on its outside with a profile tread in the form of a plurality of tread bumps 11 and on its inside with a plurality of mutually criss-crossing and thus web-like converging channels 12. The channels 12 thereby end at a distance from the two lateral edges 13 of the running tread 1, thus forming strips along the lateral edges 13, which have a plane surface.
Fig. 2 further illustrates a tire 2, which is mounted on a wheel 4. A layer 3 of a binder rubber is disposed on the ground-off and roughened surface of the tire 2. Because the layer 3 has been rolled onto the tire 2, air pockets are avoided. As further seen from Fig. 2, the running tread 1 is formed with at least one through-opening 14, which leads to the channels 12 on the inside surface.
Fig. 2a illustrates an embodiment in which the inside surface of the tire tread 1 is formed without mutually converging channels. Instead, two layers 31 and 32 of binder rubber 3 are applied on the tire 2, whereby the first layer 31, which lies on the upper side of the tire 2, extends through, while the layer 32 disposed thereon is formed of a plurality of mutually spaced-apart strips 32, which extend spirally about the tire 2, thus forming channels 33 therebetween. The opening 14 extending through the running tread 1 thereby opens into a single channel 12a extending transversely at the inside surface of the running tread 1, which channel 12a also ends at a distance from the lateral edges 13 of the running tread 1.
2149270 lO
As can be seen from Fig. 3, the running tread 1 is applied onto the tire 2, whereby air enclosures 5 are located between the tire 2 and the running tread 1. The lateral edges 13 are subsequently air-tightly connected with the sidewalls of the tire 2 by vulcanizing the intermediately located binder rubber with annular heating devices 6, through which hot gas flows, for instance. Then, as illustrated in Fig. 4, the air which is located between the running tread 1 and the tire 2 is aspirated via a suction line 7, which communicates with an evacuating device. Due to the fact that the lateral edges 13 of the running tread 1 are air-tightly connected with the tire, no air can follow along that path. Due to the fact that furthermore a plurality of channels 12 are located between the running tread 1 and the tire 2, any air enclosures between the running tread 1 and the tire 2 are removed by the evacuation process.
The tire 2 is subsequenly inserted into an autoclave 8, in which the entire binder rubber 3 disposed between the running tread 1 and the tire 2 is vulcanized, whereby the running tread 1 is attached to the tire 2. Because the suction line 7 leading to the evacuation device extends through the wall of the autoclave 8, the evacuation may be continued during the vulcanization process.
For the applicant 6.12.1994 Patent Attorney
It has been known heretofore to make used tires of motor vehicles available for further use in that a new running tread is applied onto their surface. This is based on the premise that the use of tires causes the running tread to be removed by way of friction, so that they do no longer provide the necessary profile, while the fabric carrying the running tread, the so-called carcass, remains undamaged. When, at that point, a new running tread is applied onto the undamaged carcass of a vehicle tire, a tire is created which fully meets the traffic-technological requirements.
The mounting of a new running tread onto a used tire, which is referred to a retreading, is particularly economical with large diameter tires. These are tires for trucks, propelled machines, such as earth movers, excavating machines, planing vehicles, and the like.
Retreading of vehicle tires is effected in that a used tire is ground down and/or roughened. Subsequently, a rubber solution is sprayed onto the surface of the tire, and a layer of a binder rubber, which is necessary for vulcanization, is applied thereon. It is thereby necessary to guard against the inclusion of air pockets between the surface of the tire and the binder rubber. This is assured in that the layer of the binder rubber is rolled thereon.
Subsequently, a closed ring of a new running tread is aplied onto the tire. This is effected in that the annular running tread is radially stretched with a pulling device, which is provided with gripper arms, enough as to allow the tread to be placed over the tire provided with the binder rubber. Then the gripper arms of the pulling device are laterally pulled from between the tire and the annular running tread, whereby the running tread comes to lie on the surface of the tire and tightly enclose the tire. In the further sequence, the tire provided with the new running tread is exposed in an autoclave to a pressure of about 5 bar and a temperature of about 100C, which causes the binder rubber to vulcanize. The new running tread is thereby permanently attached to the carcass of the used tire.
An essential requirement for attaining the necessary connection of the new running tread with the carcass is that no air pockets remain between the binder rubber and the ~ -- 21~9270 4 annular running tread, because otherwise no connection would be effected between the running tread and the carcass in the area of the air pockets. In efforts to avoid such air inclusions, due to which retreaded tires do not meet the traffic-technological requirements, several measures have been proposed heretofore.
It is known from AT-PS 305 061, from AT-PS 353 119, and from AT-PS 357 423 to enclose the tire provided with the running tread partly or entirely with an elastic, air-tightly closed sleeve, and to evacuate the inside of the sleeve before and during the vulcanization process. The difficulty arises thereby, however, that the air pressure existing on the outside of the sleeve presses the wedge-shaped lateral edges of the running tread onto the side flanks of the tire so strongly as to cause an airtight closure, so that in spite of the vacuum existing in the sleeve, air enclosures between the running tread and the tires are not removed. Additionally, that process requires a sleeve formed of a rubber-type material to enclose the tire at least partially, which sleeve is also subject to heating in the autoclave and thus to such stresses so as to make it suitable for only a limited number of uses. Because the sleeve becomes frail and air-permeable, air may pass through during the vulcanization process and in between the carcass and the running tread, which may also cause faults in the retreading. The fact that the retreading of tires with large diameters necessitates correspondingly large sleeves causes great material requirements, wherein that process is also not economical.
It is further known from AT-PS 353 119 to form the inner surface of the running tread with a plurality of channels, through which air can be aspirated from between the running tread and the tire. This too, however, requires a sleeve enclosing the tire fully and air-tightly, which sleeve is suitable for only a few assignments.
Furthermore, it is known from AT-PS 296 799 to mount the annular running tread onto the tire within an evacuated container. The tire is inserted into the container for that purpose, the running tread is disposed radially near the tire, and the container is subsequently closed and evacuated.
Only then is the running tread placed on the tire. In this, air enclosures between the tire and the running tread are safely avoided. That process brings with it the disadvantage of great technical expense, in that it requires an evacuated container with a stretching device.
The present invention is therefore based on the object to provide a process which avoids the disadvantages associated with the prior state of the art. This is attained in accordance with the invention in that a plurality of mutually interconnected channels are provided between the binder rubber and the inside surface of the annular running tread, which channels terminate at a distance from the lateral edges of the running tread and which communicate with at least one opening extending through the running tread, in that after the running tread has been placed on the tire the lateral edges of the running tread are air-tightly connected with the sidewalls of the tire by vulcanizing the binder rubber located there, in that the air located between the remaining running tread and the binder rubber is subsequently aspirated off through at least one opening in the running tread and that thereafter the remaining running tread is attached to the tire by vulcanizing the binder rubber located between the running tread and the tire.
The process according to the invention is based on the premise that that function which is satisfied in the prior art with the tire-enclosing sleeve, can be satisfied by the annular running tread itself, as long as the same is air-tightly connected with the tire along its lateral edges.
Due to the fact that, in accordance with the invention, air enclosures located between the tire and the running tread can be removed through an opening extening through the running tread, the use of a sleeve can be done away with, whereby the disadvantages associated with the sleeve are avoided. Since further a plurality of mutually interconnected channels are provided between the running tread and the tire, any air enclosures are dependably removed, whereby this process avoids all of the disadvantages associated with the prior art processes.
On the inside surface of the running tread there are preferably provided a plurality of mutually interconnecting channels, which terminate at a distance from the lateral edges of the running tread, and which are particularly formed as mutually crossing, web-like channels.
Analogously, a plurality of mutually interconnected channels may be located at the upper surface of the binder rubber applied on the tire. They can thereby be produced in that a first layer of binder rubber is applied on the tire, onto which a second layer of preferably strip-shaped sections of the binder rubber are applied, whereby channels are disposed between the sections. The first layer of the binder rubber can thereby be plate-shaped and the second layer of the binder rubber can be formed by strips, which are applied on the first layer in the form of a multiply interrupted spiral.
Furthermore, the inside surface of the running tread is preferably formed with at least one transversely extending channel from which the opening extending through the running tread originates. In accordance with a preferred embodiment, the tire with the running tread is inserted into an autoclave and the evacuation of the air from between the running tread and the binder rubber continues during the vulcanizing process in the autoclave.
The process according to the invention is explained in more detail in the following with the aid of the exemplary embodiments illustrated in the drawing. There is shown:
ig. 1 a running tread for use with the process according to the invention, in an axonometric view, Fig. la a section of the running tread according to Fig.
1, in an axonometric view and in section, Figs. 2 and 2a two embodiments of a tire coated with a binder rubber, in section, Fig. 3 a tire with a running tread, in a first stage of the process according to the invention, in section, Fig. 4 the tire with the running tread according to Fig. 4 in a second stage of the process according to the invention, in section, and Fig. 5 an autoclave with a tire disposed therein, in section.
As illustrated in Figs. 1 and la, a running tread 1 which is provided for retreading a used and ground-off tire, is formed as a closed ring, which is provided on its outside with a profile tread in the form of a plurality of tread bumps 11 and on its inside with a plurality of mutually criss-crossing and thus web-like converging channels 12. The channels 12 thereby end at a distance from the two lateral edges 13 of the running tread 1, thus forming strips along the lateral edges 13, which have a plane surface.
Fig. 2 further illustrates a tire 2, which is mounted on a wheel 4. A layer 3 of a binder rubber is disposed on the ground-off and roughened surface of the tire 2. Because the layer 3 has been rolled onto the tire 2, air pockets are avoided. As further seen from Fig. 2, the running tread 1 is formed with at least one through-opening 14, which leads to the channels 12 on the inside surface.
Fig. 2a illustrates an embodiment in which the inside surface of the tire tread 1 is formed without mutually converging channels. Instead, two layers 31 and 32 of binder rubber 3 are applied on the tire 2, whereby the first layer 31, which lies on the upper side of the tire 2, extends through, while the layer 32 disposed thereon is formed of a plurality of mutually spaced-apart strips 32, which extend spirally about the tire 2, thus forming channels 33 therebetween. The opening 14 extending through the running tread 1 thereby opens into a single channel 12a extending transversely at the inside surface of the running tread 1, which channel 12a also ends at a distance from the lateral edges 13 of the running tread 1.
2149270 lO
As can be seen from Fig. 3, the running tread 1 is applied onto the tire 2, whereby air enclosures 5 are located between the tire 2 and the running tread 1. The lateral edges 13 are subsequently air-tightly connected with the sidewalls of the tire 2 by vulcanizing the intermediately located binder rubber with annular heating devices 6, through which hot gas flows, for instance. Then, as illustrated in Fig. 4, the air which is located between the running tread 1 and the tire 2 is aspirated via a suction line 7, which communicates with an evacuating device. Due to the fact that the lateral edges 13 of the running tread 1 are air-tightly connected with the tire, no air can follow along that path. Due to the fact that furthermore a plurality of channels 12 are located between the running tread 1 and the tire 2, any air enclosures between the running tread 1 and the tire 2 are removed by the evacuation process.
The tire 2 is subsequenly inserted into an autoclave 8, in which the entire binder rubber 3 disposed between the running tread 1 and the tire 2 is vulcanized, whereby the running tread 1 is attached to the tire 2. Because the suction line 7 leading to the evacuation device extends through the wall of the autoclave 8, the evacuation may be continued during the vulcanization process.
For the applicant 6.12.1994 Patent Attorney
Claims (8)
1. Process for retreading a used tire, whereby the running tread of the tire is ground off and/or roughened, whereby a layer of a binder rubber is further applied onto the surface of the tire, a closed ring of a running tread is applied over the binder rubber, the air between the binder rubber and the running tread is removed, and the running tread is attached to the tire by vulcanizing the binder rubber located between the running tread and the tire, characterized in that a plurality of mutually connected channels (12) are provided between the binder rubber (3) and the inside surface of the running tread (1), which channels (12) terminate at a distance from the lateral edges (13) of the running tread and which communicate with at least one opening (14) extending through the running tread (1), in that after the running tread (1) has been placed on the tire (2) the lateral edges (13) of the running tread are air-tightly connected with the sidewalls of the tire (2) by vulcanizing the binder rubber located there, in that the air located between the remaining running tread (1) and the binder rubber (3) is aspirated off through the channels (12) and through at least one opening (14) provided in the running tread (1), and that the running tread (1) is subsequently attached at the tire (2) by vulcanizing the binder rubber between the running tread (1) and the tire (2).
2. Process according to claim 1, characterized in that a plurality of mutually communicating channels (12) are provided on the inside surface of the running tread (1) which terminate at a distance from the lateral edges (13) of the running tread (1).
3. Process according to claim 2, characterized in that a plurality of mutually crossing, web-like channels (12) are provide on the inside surface of the running tread (10.
4. Process according to one of claims 1 to 3, characterized in that a plurality of mutually interconnected channels (33) are located on the upper side of the binder rubber (3) applied on the tire (2).
5. Process according to claim 4, characterized in that a first layer (31) of binder rubber is applied on the tire (2), onto which a second layer (32) of preferably strip-shaped sections of binder rubber are applied, whereby mutually interconnected channels (33) are located between the sections.
6. Process according to claim 5, characterized in that the first layer (31) of the binder rubber is plate-shaped and that the second layer (32) of the binder rubber is formed with strips, which are applied on the first layer (31) in the form of a multiply interrupted spiral.
7. Process according to one of claims 4 to 6, characterized in that the inside surface of the running tread (1) is formed with at least one transversely extending channel (12a), from which the opening (14) extending through the running tread (1) originates.
8. Process according to one of claims 1 to 2, characterized in that the tire (2) provided with the running tread (1) is inserted into an autoclave (8) and the evacuation of the air located between the running tread (1) and the binder rubber (3) is continued during the vulcanization process.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT226594 | 1994-12-06 | ||
| ATA2265/94 | 1994-12-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2149270A1 true CA2149270A1 (en) | 1996-06-07 |
Family
ID=3531144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2149270 Abandoned CA2149270A1 (en) | 1994-12-06 | 1995-05-12 | Process for retreading a used tire |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0715948A1 (en) |
| JP (1) | JPH08156133A (en) |
| CN (1) | CN1124198A (en) |
| CA (1) | CA2149270A1 (en) |
| HU (1) | HUT73823A (en) |
| PL (1) | PL309382A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10046533B2 (en) * | 2012-12-13 | 2018-08-14 | Compagnie Generale Des Etablissements Michelin | Method for retreading a vehicle tire casing and vehicle casing obtained by this method |
| US10183456B2 (en) * | 2013-04-30 | 2019-01-22 | Compagnie Generale Des Etablissements Michelin | Treads and methods for making a retreaded tire |
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|---|---|---|---|---|
| JP4589563B2 (en) * | 2001-05-11 | 2010-12-01 | 株式会社ブリヂストン | How to remove air intervening between raw tire and vulcanizing mold |
| ITTO20070262A1 (en) * | 2007-04-13 | 2008-10-14 | Bridgestone Corp | METHOD OF COLD RECONSTRUCTION OF TIRES |
| JP5160835B2 (en) * | 2007-08-08 | 2013-03-13 | 株式会社ブリヂストン | Precured tread for retreaded tires and retreaded tires |
| US8632647B2 (en) * | 2008-08-27 | 2014-01-21 | Michelin Recherche Et Technique S.A. | Method of controlling tread shrinkage during curing |
| IT1391869B1 (en) | 2008-11-12 | 2012-01-27 | Bridgestone Corp | METHOD AND PLANT TO REBUILD A TIRE |
| JP5245877B2 (en) * | 2009-02-02 | 2013-07-24 | 横浜ゴム株式会社 | Precure tread and retreaded tire using the same |
| JP5495698B2 (en) * | 2009-10-02 | 2014-05-21 | 株式会社ブリヂストン | Precured tread, retreaded tire, and retreaded tire manufacturing method |
| JP5560900B2 (en) * | 2010-05-21 | 2014-07-30 | 横浜ゴム株式会社 | Rehabilitated tire and manufacturing method thereof |
| JP5884317B2 (en) * | 2011-07-04 | 2016-03-15 | 横浜ゴム株式会社 | Pre-cured tread, retreaded tire and manufacturing method thereof |
| CN102358054B (en) * | 2011-08-03 | 2013-06-05 | 无锡翼龙航空设备有限公司 | Production process for aviation retreaded tires |
| WO2015038450A1 (en) * | 2013-09-12 | 2015-03-19 | Compagnie Generale Des Etablissements Michelin | Method of making pre-cured tread with textured bottom |
| CN105916670B (en) * | 2013-12-27 | 2019-07-30 | 普利司通奔达可有限责任公司 | The system and method for forming retreads using flat back tyre surface |
| WO2016195642A1 (en) * | 2015-05-29 | 2016-12-08 | Compagnie Generale Des Etablissements Michelin | Method for tire retreading using adhesives |
| CN106273595B (en) * | 2015-06-10 | 2019-04-12 | 王薇 | For forming the method and its rubber mold of retreads side decorative pattern |
| CN107253341A (en) * | 2017-06-21 | 2017-10-17 | 太仓轮达汽车配件有限公司 | A kind of high compactness tight type arc bar tread segments block of tyre rebuilding |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB746375A (en) * | 1953-04-09 | 1956-03-14 | Channel Islands Tyre Company L | Improvements in and relating to the retreading of tyres |
| NL199451A (en) * | 1955-07-26 | |||
| US3689337A (en) * | 1969-06-25 | 1972-09-05 | Vakuum Vulk Holdings Ltd | Method of recapping tires |
| AT305061B (en) * | 1969-07-03 | 1973-02-12 | Schelkmann Wilhelm | Vulcanization process for renewing worn tires and apparatus for carrying out this process |
| FI66311C (en) * | 1975-10-10 | 1984-10-10 | Bandag Inc | FOERFARANDE FOER FRAMSTAELLNING AV TILL SIN HELA YTTRE YTA LAGRINGSBAR FOERVULKANISERAD SLITYTERING -RINGDEL ELLER -SEGMENT |
| DE2545463C2 (en) * | 1975-10-10 | 1985-11-07 | Bandag Inc., Muscatine, Ia. | METHOD FOR REPLACING THE TREAD OF A DEALED AIR OR SOLID TIRE |
| DE3562581D1 (en) * | 1984-04-09 | 1988-06-16 | Michelin & Cie | Method to adhere two rubber elements by vulcanisation of a binding layer and products suited for such a method |
-
1994
- 1994-12-23 EP EP94890220A patent/EP0715948A1/en not_active Withdrawn
-
1995
- 1995-04-21 JP JP7119082A patent/JPH08156133A/en active Pending
- 1995-04-25 CN CN 95104735 patent/CN1124198A/en active Pending
- 1995-05-12 CA CA 2149270 patent/CA2149270A1/en not_active Abandoned
- 1995-06-28 PL PL30938295A patent/PL309382A1/en unknown
- 1995-07-03 HU HU9502019A patent/HUT73823A/en unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10046533B2 (en) * | 2012-12-13 | 2018-08-14 | Compagnie Generale Des Etablissements Michelin | Method for retreading a vehicle tire casing and vehicle casing obtained by this method |
| US10183456B2 (en) * | 2013-04-30 | 2019-01-22 | Compagnie Generale Des Etablissements Michelin | Treads and methods for making a retreaded tire |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1124198A (en) | 1996-06-12 |
| HUT73823A (en) | 1996-09-30 |
| HU9502019D0 (en) | 1995-08-28 |
| PL309382A1 (en) | 1996-06-10 |
| EP0715948A1 (en) | 1996-06-12 |
| JPH08156133A (en) | 1996-06-18 |
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| Date | Code | Title | Description |
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| FZDE | Dead |