CA2512548A1 - Tire mold and tread - Google Patents
Tire mold and tread Download PDFInfo
- Publication number
- CA2512548A1 CA2512548A1 CA002512548A CA2512548A CA2512548A1 CA 2512548 A1 CA2512548 A1 CA 2512548A1 CA 002512548 A CA002512548 A CA 002512548A CA 2512548 A CA2512548 A CA 2512548A CA 2512548 A1 CA2512548 A1 CA 2512548A1
- Authority
- CA
- Canada
- Prior art keywords
- tread
- plates
- mold
- segments
- machining
- 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
- 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)
- B29D30/52—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
- 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
- B29C33/30—Mounting, exchanging or centering
-
- 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
- B29C33/30—Mounting, exchanging or centering
- B29C33/301—Modular mould systems [MMS], i.e. moulds built up by stacking mould elements, e.g. plates, blocks, rods
- B29C33/302—Assembling a large number of mould elements to constitute one cavity
-
- 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
- B29D30/58—Applying bands of rubber treads, i.e. applying camel backs
- B29D2030/582—Venting air inclusions, e.g. air trapped between tread and carcass
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Tyre Moulding (AREA)
Abstract
The present invention is a process for making an entire truck tire tread comprising the steps of securing tread mold segments comprising plates to a flat backing, placing a blank tread on the mold segments, and pressing the blank tread against the mold segments. The invention also comprises this process wherein the tread mold segments comprising plates are formed by the steps of machining at least one side of a plate so that the peak to peak variation of the plate surface is less than 5 microns, securing the plates t o a flat backing; and machining a reverse tread pattern onto the secured plate s. The present invention also comprises a process for making a mold for a tire tread comprising the steps of securing tread mold segments comprising plates of at least two different thicknesses to a flat backing, and machining a reverse tread pattern comprising ridges onto the secured plates, where the thickness of the plate under the ridge is chosen so that the width to height ratio of a ridge on a plate is not less than 1:10.
Description
Tire Mold and Tread Field of the Invention The present invention is in the field of tire molds.
Background of the Invention During the molding of the tire, it is necessary to be able to evacuate all the air which might be imprisoned between the tire introduced into the mold and the different parts of the mold. If the slightest pocl~et of imprisoned air remains between the mold and the tire, this will cause a molding defect which appears on the outer surface of the tire.
Such molding defects are unacceptable both from the staxxdpoxrri of the quality of' the tire to manuaa.ctured and fx°om the :xhndpoiovt oaf i.ts aesthetic appearaxice. 1'J ow: it. i~; lmc~~vn t~lla.i it is impassible to assure total venting of a mold naturally, that is to say, by simply using the spaces between the different component parts of the mold in~ order to assure the evacuation of the air. Recourse is therefore had to various palliatives, one of which is of general use in the tire industry, namely the drilling of small vent holes wherever 15 necessary in the mold.
When such vents are used., a trace of there is seen on the molded tire in the form of small protuberances of rubber which extend from the surface of the tare. It is l~n.own that, as soon as an interstice exceeds a size of 0.05 mm, it is capable of assuring the venting, but at the same time it permits a slight leakage of raw rubber. Now, it is 2o impossible to effect drillings of a diameter of less than 0.05 mm economically. For this reason, orie continues to see on most tires a trace of the smalhvent holes in the form of small protuberances extending from the surface of the tire.
Brief Description ofthe Drawings ' Figure 1 is an illustration of the tire tread mold of the present invention..
Figure 2 is an illustration of ane plate of the tire tread mold of the present invention.
Figure 3 shows a tread made with the tire tread mold of the present invention.
Figure 4 is an enlargement of the tread shown in Figure 3.
Summary of the Invention The present invention is a process for rrlalcing an entire truck tire tread comprising the steps of securing tread n~oLd segments compri5ix~g plates to a flat backing, placing a ao blar~:k tread on the r~.olcl segments, and pressing the blank tread against the rx~old segments. The irmention also comprises this pI°ocess wherein the tread mold segments comprising plates are fomned by the steps of machining at least one side of a plate so that the peak to peak variation of the plate surface is less than 5 microns, securing the plates to a flat backing;, and machining a reverse tread pattern onto the secured plates.
The present invention also comprises a process for making a mold for a tire tread ~;utnprising the steps of securing tread mold segments comprising plates of at. least two different tluckn.esses to a flat backing, and machining a reverse tread pattern comprising ridges onto the secured plates, where the thickness of the plate under the ridge is chosen so that the width to height ratio of a ridge on a plate is not less than l :l 0.
2o Detailed Description of the Invention The present invention is a process for making an entire trucl~ tire tread comprising the steps of securing tread mold segments comprising plates to a flat backing, placing a blank tread on the mold segments, and pressing the blank tread against the mold segments. The invention also comprises this process wherein the tread mold segments comprising plates are formed by the steps of machining at least one side of a plate so that the peak to peak variation of the plate surface is less than ~. microns, securing the plates to a flat backing; and machining a reverse tread pattern onto the secured plates.
The present invention also comprises a process for making a mold for a tire tread comprising the steps of securing tread mold segments comprising plates of at least two different thicknesses to a flat backing, and machining a reverse tread pattern comprising ridges onto the secured plates, where the thickness ofthe plate under the ridge is chosen so that the t~~idth to height x°atio of a xidge un a plate is not less than 1:10.
Figure l :~ho~vs one candodiment c>f a segnaeot ~uf~ the tire tread uxt~ld ~ 1 tj~ ~v ( the present invention. Flat plates (20) are secured together, forming a segment ofthe complete mold. In this embodiment, the plates (20) are secured by means of rods (60) .
extending through apertures (50) in the plates. End piece (70) secures the plates together.
A reverse of a tread pattern has been machined onto one side of the mold (10).
This pattern comprises various ridges (40) and depressions (45). According to the present iwvention, the plates (20;) begin as blanks., .such as shown in Figure ? In c>ne ernbod.iment of the invention, the plates are made of ahuninum appxo~mately 10 millimetexs thick.
The plates are roughened on one or both of their major sides, so that the peals to peak maximum height difference on the machined surface is about 0.005 millimeters.
This roughness permits venting of gases between the plates during the tread mold process, but is small enough to prevent the formation of flashing.
A tread pattern is then machined onto the clamped-together plates (see Figure 1).
One example of a reverse of a tread pattern is shown. The reverse tread pattern comprises ridges (40) and depressions (45). In one embodiment of the invention, The height to width ratio of a ridge is no greater than 10:1. This preserves the strength of the ixead mold pattern. In another embodiment of the invention, the plates are of at least two different thicknesses: That way, plates can be selected such that a ridge supported by a plate has a height to width ratio no greatex than 10:1. In other words, thin features in the tread mold do not lie across two plates.
The segment shown would placed onto a flat backing (not shown), and placed in a press. A blanlc tread (not shown) would be placed on the mold, and the end result would be a tire tread such as shown in Figure j. Fig~.ue ~ i5 ass enlargement of the tl°ead shown i f? LT7 Figure ~.
Figure %-1 Shows almost unobservabJ.e lines ot~ tlashW g ( ( l)0), less than U:1 millimeter high. Thus, the use of the present invention results in a greatly improved tread appearance.
The invention may be further understood by means of the following non-limiting example.
Eke 1 A mold was constructed fox a 215165R16XZE-SA tire tread. Both sides of 6061 aluminum plate (3/8" or 9.525 mm) were roughened to permit venting, and clamped together. The tread pattern was machined into three sectors of tread (total length 889 2o millimeters). The mold face was then sandblasted. The sectors were secured in a press, and a.total of seven cures were made.. The process was then repeated.
Figure 3 and Figure 4 show the results ofthe process.
Venting performance: The testing sectors were placed in the.middle of the press, which is the woxst position for causing venting quality control issues. After all 14 cuxes, none of the treads made by the test sectors had any venting quality control deficiencies.
Besides that, even the backside of the sculpture had no venting deficiencies for all test 5 treads. This has been a venting problem for this particular sculpture. That means air pockets trapped on the backside of the tread may penetrate the rubber and vent through the gap in between the plates.
Tire aspect: The overall appearance is much better than a mono-block mold with vents made 1~y a ~l.iret°.t machining process. It looks the same. as a new tit°e by tile NlichelW
aspect standard. The stepping on the summit a~~ -hetrRTeen the plates i;:~
mmianal. '1~'he~ are visible, but riot ~neasurable°
Flashing: There was no flashing on one of the sectors with all plates machined on one side. for the first curing test. There was no flashing on any of the 3 sectors for the second curing test. For that test, one sector had plates machined' on one side, and other two sectors had plates machined on both sides.
fhe tread surface finish ha.,s the same quality as treads na.ade by arr~~
othei° process.
The misalignment in-between the sectors was minimal. They are visible, but not measurable. That implied that the accuracy of the sector length and CNC
machine three-dimensional accuracy is good. We expect that the three-dimensional accuracy of the mold 2o will be within several hundredths of a millimeter.
The summit has sharp corners; the aspect around the summit is much cleaner and neat loolung. The minimum radius in between the groove wall and the tread surface is 1.0 mm. No visible steps were created using indifferent finish cutting tools. It is a common problem in the direct sculpture machhzhlg process. That is because~all the finish tools are set into precision length and~the spindle assembly of the CNC machine has compensation for thermal expansion.
Background of the Invention During the molding of the tire, it is necessary to be able to evacuate all the air which might be imprisoned between the tire introduced into the mold and the different parts of the mold. If the slightest pocl~et of imprisoned air remains between the mold and the tire, this will cause a molding defect which appears on the outer surface of the tire.
Such molding defects are unacceptable both from the staxxdpoxrri of the quality of' the tire to manuaa.ctured and fx°om the :xhndpoiovt oaf i.ts aesthetic appearaxice. 1'J ow: it. i~; lmc~~vn t~lla.i it is impassible to assure total venting of a mold naturally, that is to say, by simply using the spaces between the different component parts of the mold in~ order to assure the evacuation of the air. Recourse is therefore had to various palliatives, one of which is of general use in the tire industry, namely the drilling of small vent holes wherever 15 necessary in the mold.
When such vents are used., a trace of there is seen on the molded tire in the form of small protuberances of rubber which extend from the surface of the tare. It is l~n.own that, as soon as an interstice exceeds a size of 0.05 mm, it is capable of assuring the venting, but at the same time it permits a slight leakage of raw rubber. Now, it is 2o impossible to effect drillings of a diameter of less than 0.05 mm economically. For this reason, orie continues to see on most tires a trace of the smalhvent holes in the form of small protuberances extending from the surface of the tire.
Brief Description ofthe Drawings ' Figure 1 is an illustration of the tire tread mold of the present invention..
Figure 2 is an illustration of ane plate of the tire tread mold of the present invention.
Figure 3 shows a tread made with the tire tread mold of the present invention.
Figure 4 is an enlargement of the tread shown in Figure 3.
Summary of the Invention The present invention is a process for rrlalcing an entire truck tire tread comprising the steps of securing tread n~oLd segments compri5ix~g plates to a flat backing, placing a ao blar~:k tread on the r~.olcl segments, and pressing the blank tread against the rx~old segments. The irmention also comprises this pI°ocess wherein the tread mold segments comprising plates are fomned by the steps of machining at least one side of a plate so that the peak to peak variation of the plate surface is less than 5 microns, securing the plates to a flat backing;, and machining a reverse tread pattern onto the secured plates.
The present invention also comprises a process for making a mold for a tire tread ~;utnprising the steps of securing tread mold segments comprising plates of at. least two different tluckn.esses to a flat backing, and machining a reverse tread pattern comprising ridges onto the secured plates, where the thickness of the plate under the ridge is chosen so that the width to height ratio of a ridge on a plate is not less than l :l 0.
2o Detailed Description of the Invention The present invention is a process for making an entire trucl~ tire tread comprising the steps of securing tread mold segments comprising plates to a flat backing, placing a blank tread on the mold segments, and pressing the blank tread against the mold segments. The invention also comprises this process wherein the tread mold segments comprising plates are formed by the steps of machining at least one side of a plate so that the peak to peak variation of the plate surface is less than ~. microns, securing the plates to a flat backing; and machining a reverse tread pattern onto the secured plates.
The present invention also comprises a process for making a mold for a tire tread comprising the steps of securing tread mold segments comprising plates of at least two different thicknesses to a flat backing, and machining a reverse tread pattern comprising ridges onto the secured plates, where the thickness ofthe plate under the ridge is chosen so that the t~~idth to height x°atio of a xidge un a plate is not less than 1:10.
Figure l :~ho~vs one candodiment c>f a segnaeot ~uf~ the tire tread uxt~ld ~ 1 tj~ ~v ( the present invention. Flat plates (20) are secured together, forming a segment ofthe complete mold. In this embodiment, the plates (20) are secured by means of rods (60) .
extending through apertures (50) in the plates. End piece (70) secures the plates together.
A reverse of a tread pattern has been machined onto one side of the mold (10).
This pattern comprises various ridges (40) and depressions (45). According to the present iwvention, the plates (20;) begin as blanks., .such as shown in Figure ? In c>ne ernbod.iment of the invention, the plates are made of ahuninum appxo~mately 10 millimetexs thick.
The plates are roughened on one or both of their major sides, so that the peals to peak maximum height difference on the machined surface is about 0.005 millimeters.
This roughness permits venting of gases between the plates during the tread mold process, but is small enough to prevent the formation of flashing.
A tread pattern is then machined onto the clamped-together plates (see Figure 1).
One example of a reverse of a tread pattern is shown. The reverse tread pattern comprises ridges (40) and depressions (45). In one embodiment of the invention, The height to width ratio of a ridge is no greater than 10:1. This preserves the strength of the ixead mold pattern. In another embodiment of the invention, the plates are of at least two different thicknesses: That way, plates can be selected such that a ridge supported by a plate has a height to width ratio no greatex than 10:1. In other words, thin features in the tread mold do not lie across two plates.
The segment shown would placed onto a flat backing (not shown), and placed in a press. A blanlc tread (not shown) would be placed on the mold, and the end result would be a tire tread such as shown in Figure j. Fig~.ue ~ i5 ass enlargement of the tl°ead shown i f? LT7 Figure ~.
Figure %-1 Shows almost unobservabJ.e lines ot~ tlashW g ( ( l)0), less than U:1 millimeter high. Thus, the use of the present invention results in a greatly improved tread appearance.
The invention may be further understood by means of the following non-limiting example.
Eke 1 A mold was constructed fox a 215165R16XZE-SA tire tread. Both sides of 6061 aluminum plate (3/8" or 9.525 mm) were roughened to permit venting, and clamped together. The tread pattern was machined into three sectors of tread (total length 889 2o millimeters). The mold face was then sandblasted. The sectors were secured in a press, and a.total of seven cures were made.. The process was then repeated.
Figure 3 and Figure 4 show the results ofthe process.
Venting performance: The testing sectors were placed in the.middle of the press, which is the woxst position for causing venting quality control issues. After all 14 cuxes, none of the treads made by the test sectors had any venting quality control deficiencies.
Besides that, even the backside of the sculpture had no venting deficiencies for all test 5 treads. This has been a venting problem for this particular sculpture. That means air pockets trapped on the backside of the tread may penetrate the rubber and vent through the gap in between the plates.
Tire aspect: The overall appearance is much better than a mono-block mold with vents made 1~y a ~l.iret°.t machining process. It looks the same. as a new tit°e by tile NlichelW
aspect standard. The stepping on the summit a~~ -hetrRTeen the plates i;:~
mmianal. '1~'he~ are visible, but riot ~neasurable°
Flashing: There was no flashing on one of the sectors with all plates machined on one side. for the first curing test. There was no flashing on any of the 3 sectors for the second curing test. For that test, one sector had plates machined' on one side, and other two sectors had plates machined on both sides.
fhe tread surface finish ha.,s the same quality as treads na.ade by arr~~
othei° process.
The misalignment in-between the sectors was minimal. They are visible, but not measurable. That implied that the accuracy of the sector length and CNC
machine three-dimensional accuracy is good. We expect that the three-dimensional accuracy of the mold 2o will be within several hundredths of a millimeter.
The summit has sharp corners; the aspect around the summit is much cleaner and neat loolung. The minimum radius in between the groove wall and the tread surface is 1.0 mm. No visible steps were created using indifferent finish cutting tools. It is a common problem in the direct sculpture machhzhlg process. That is because~all the finish tools are set into precision length and~the spindle assembly of the CNC machine has compensation for thermal expansion.
Claims (10)
1. A process for making an entire truck tire tread comprising the steps of:
(a) securing tread mold segments comprising plates to a flat backing;
(b) placing a blank tread on the mold segments; and (c) pressing the blank tread against the mold segments.
(a) securing tread mold segments comprising plates to a flat backing;
(b) placing a blank tread on the mold segments; and (c) pressing the blank tread against the mold segments.
2. The process of claim 1, wherein the tread is greater than three meters in length.
3. The process of claim 1, wherein the tread mold segments comprising plates are formed by the steps of:
(a) machining at least one side of a plate so that the peak to peak variation of the plate surface is less than 5 microns;
(b) securing the plates to a flat backing; and (c) machining a reverse tread pattern onto the secured plates.
(a) machining at least one side of a plate so that the peak to peak variation of the plate surface is less than 5 microns;
(b) securing the plates to a flat backing; and (c) machining a reverse tread pattern onto the secured plates.
4. A process for making a mold for a tire tread comprising the steps of:
(a) securing tread mold segments comprising plates to a flat backing;
(b) machining a reverse tread pattern onto the secured plates;
wherein the tread pattern comprises ridges, and the width to height ratio of the ridges is not less than 1:10.
(a) securing tread mold segments comprising plates to a flat backing;
(b) machining a reverse tread pattern onto the secured plates;
wherein the tread pattern comprises ridges, and the width to height ratio of the ridges is not less than 1:10.
5. The process of claim 4, wherein the plates comprise aluminum.
6. A tire tread mold comprising segments comprising plates secured to a flat backing, wherein some plates have widths greater than 2 millimeters different than other segments.
7. A tire tread comprising mold flashing wherein the flashing comprises lines less than 0.1 millimeter tall.
8. A mold for a tire tread comprising tread mold segments comprising plates of at least two different thicknesses.
9. The mold of claim 9, wherein the plates differ in thickness by at least 7 millimeters.
10. A process for making a mold for a tire tread comprising the steps of:
(a) securing tread mold segments comprising plates or at least two different thicknesses to a flat backing;
(b) machining a reverse tread pattern comprising ridges onto the secured plates;
wherein the thickness of the plate under the ridge is chosen so that the width to height ratio of a ridge on a plate is not less than 1:10:
(a) securing tread mold segments comprising plates or at least two different thicknesses to a flat backing;
(b) machining a reverse tread pattern comprising ridges onto the secured plates;
wherein the thickness of the plate under the ridge is chosen so that the width to height ratio of a ridge on a plate is not less than 1:10:
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US43809903P | 2003-01-06 | 2003-01-06 | |
| US60/438,099 | 2003-01-06 | ||
| PCT/US2003/039785 WO2004062898A2 (en) | 2003-01-06 | 2003-12-15 | Tire mold and tread |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2512548A1 true CA2512548A1 (en) | 2004-07-29 |
Family
ID=32713275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002512548A Abandoned CA2512548A1 (en) | 2003-01-06 | 2003-12-15 | Tire mold and tread |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP1585632A2 (en) |
| JP (1) | JP2006519120A (en) |
| KR (1) | KR20050098857A (en) |
| CN (1) | CN1735504A (en) |
| AU (1) | AU2003297066A1 (en) |
| BR (1) | BR0317952A (en) |
| CA (1) | CA2512548A1 (en) |
| WO (1) | WO2004062898A2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| MY172998A (en) * | 2008-09-03 | 2019-12-18 | Khong Fah Liew | Mould segments with indexing means and method of aligning mould segments |
| WO2011037447A1 (en) * | 2009-09-28 | 2011-03-31 | Low, Yoke Thye | Mould segments with indexing means and method of aligning mould segments |
| US8731871B2 (en) | 2010-09-22 | 2014-05-20 | Bridgestone Americas Tire Operations, Llc | Tire mold design method to minimize unique annular mold parts |
| AT512362A1 (en) * | 2012-01-13 | 2013-07-15 | Ifw Manfred Otte Gmbh | Mold for a tool and the tool formed therefrom |
| JP5834138B2 (en) * | 2012-05-31 | 2015-12-16 | 住友ゴム工業株式会社 | Device for mounting tread ring on base tire and method for manufacturing retreaded tire |
| US10821693B2 (en) | 2015-05-26 | 2020-11-03 | Bridgestone Bandag, Llc | Method and apparatus for improved tread splicing |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1230275B (en) * | 1989-06-14 | 1991-10-18 | Marangoni Rts Spa | PERFECTED TREAD, FOR THE RECONSTRUCTION OF TIRES FOR VEHICLES, AND MOLD USED FOR ITS REALIZATION. |
| ES2083223T3 (en) * | 1992-05-13 | 1996-04-01 | Sedepro | TIRE MOLD, AND TIRE MOLDING PROCEDURE. |
| JPH08300512A (en) * | 1995-05-12 | 1996-11-19 | Yokohama Rubber Co Ltd:The | Mold for precured tread |
| AU1073099A (en) * | 1998-10-08 | 2000-04-26 | Goodyear Tire And Rubber Company, The | Multiple insert tire mold and assembly method |
-
2003
- 2003-12-15 EP EP03815210A patent/EP1585632A2/en not_active Withdrawn
- 2003-12-15 CA CA002512548A patent/CA2512548A1/en not_active Abandoned
- 2003-12-15 BR BR0317952-4A patent/BR0317952A/en not_active Application Discontinuation
- 2003-12-15 JP JP2004566547A patent/JP2006519120A/en not_active Withdrawn
- 2003-12-15 CN CNA2003801083660A patent/CN1735504A/en active Pending
- 2003-12-15 KR KR1020057012666A patent/KR20050098857A/en not_active Application Discontinuation
- 2003-12-15 AU AU2003297066A patent/AU2003297066A1/en not_active Abandoned
- 2003-12-15 WO PCT/US2003/039785 patent/WO2004062898A2/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| BR0317952A (en) | 2005-11-29 |
| WO2004062898A2 (en) | 2004-07-29 |
| CN1735504A (en) | 2006-02-15 |
| WO2004062898A3 (en) | 2004-08-26 |
| AU2003297066A8 (en) | 2004-08-10 |
| AU2003297066A1 (en) | 2004-08-10 |
| EP1585632A2 (en) | 2005-10-19 |
| JP2006519120A (en) | 2006-08-24 |
| KR20050098857A (en) | 2005-10-12 |
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