TW438667B - Method and apparatus for building pneumatic tires in an improved tire mold - Google Patents

Abstract

The invention relates to the manufacture of a tire (10) in a bladderless tire mold (12) that incorporates sealing rings (16, 18, 70) that enable the tire (10) to be easily and quickly installed within the tire mold (12) so that the pressurized gas or fluid used to inflate and vulcanize the tire (10) does not leak around the tire bead sections (44, 46) of the tire (10) and escape into the mold cavity (60). A improved method of mounting the tire (10) into the bladderless tire mold (12) allows the tire (10) to be quickly and easily loaded in and unloaded from the tire mold (12) without the need of moving any mold parts into or out of the space between the tire bead sections (44, 46).

Description

43 8667 V. Description of the invention (1) Related applications This application is related to the international application serial number PCT / US97 / 0485 No. 9 and its title is a pneumatic tire with a vulcanized lining layer and a method for making a lining layer. Listed on March 25, 2015 and has the common assignor of the present invention. TECHNICAL FIELD The present invention relates to an improved tire mold structure and an improved tire manufacturing method, which combine the advantages obtained by using a new tire mold structure design. More specifically, the present invention relates to an improved tire mold design, which does not require the use of tire airbags during tire shaping and vulcanization, and an improved method of manufacturing tires using improved tire molds. BACKGROUND OF THE INVENTION In order to easily understand the advantages and improvements achieved by the present invention, the structure of the tire and its manufacturing process will be briefly discussed below. Pneumatic tires are made of various components, or tire plies are used as flat materials. , And then attached to a rotating tire building cylinder to form a hollow, ring-shaped green tire or unvulcanized tire. The manufacturing sequence of these components is as follows: First, the lining layer is wrapped (adhered) on the tire building cylinder; after the lining layer is applied, the carcass ply with a reinforcing material is attached. After the carcass ply (the following is not required) The order) is the tire lip, the apex, the chafer, the sidewall, the belt and the tread. These components are then swelled in a manner known in the art to form a ring-shaped green tire assembly. Then take the raw tire assembly out of the tire forming cylinder and put it into a certain shape and thinning mold with the shape of the finished tire

438667 V. Description of the invention (2) In the tool, after the mold is closed, the green tire assembly having a ring shape is heated, and the pressure gas or liquid sprayed is injected into the mold and arranged in the green tire: sulfurized airbag The green tire assembly swells toward the radially outer mold. When the vulcanized airbag is inflated, it will force the tread of the green tire assembly to contact the tire wall to heat the mold wall to shape and vulcanize the green tire assembly into a fully cured tire. When the green tire assembly is radially expanded in the mold for molding and vulcanization, the annular ply expands radially outward to a size slightly larger than the size of the original Mr ^ assembly. Therefore, airbags have traditionally been made of expandable: they are generally made of butyl synthetic rubber to resist steam, '' when produced on the assembly line, vulcanization in the molding and vulcanization mold 2: 2 ”and Fault. $ Shows that a difficult problem needs to be overcome, because the rubber airbag needs to withstand the requirements of operating in harsh environments, and it is part of the assembly line to withstand day and night throughout the year =. 2 such as' airbag is located in a heated In the mold, every two pieces of the mold = expansion and contraction. Especially the airbag needs to withstand high temperature, pressure disorder or liquid such as steam used to inflate the airbag. The manufacturing method of cooking on the assembly line to make tires will be affected by the mother of the baby. The time limit required for green tires to be formed and vulcanized. Tires are expensive and each group of tire forming cylinders is required to be standard: The main reason for pressing the machine is that it requires more defects or wear in SC. Lice sac. This fact, coupled with the maintenance of purchased tire molds, has led the tire industry to commit to continuous operation of the wheel hubs, and install new airbags and return tire wedges to the production line. Cost of labor and manufacturing or purchase of gas

V. Description of the invention (3) The major stoppage caused by it 'will reduce the tire production cost. The tire industry has attempted to eliminate the need for vulcanized airbags when producing tires. Example No. 3, 143 '449 (, 449) of each Yu country disclosed a non-airbag tire mold for shaping and green tire. The green tire has an unvulcanized, barrel-shaped,: ,, 4 ^ inner liner, which is used to completely seal the inside of the green tire so that the pressure fluid does not leak into the carcass when the green tire is acting on the tire mold seat. No. 449 fli reveals |: _ The seams in the lining of the tire are out of the air-bag-free mold expansion fluid and cannot enter the interior of the vulcanizing mold and the vulcanized green tire body through the joints. However, placing the green tire in a mold requires a complicated mold structure that allows the inflated liquid to be sprayed into the airless mold being molded into the desired shape of the green tire body. Regarding the present invention, an airbag-free mold for a vulcanized tire is also disclosed in U.S. Patent No. 4 ^ 1 66, 8 83 (8 83). —The lip seal ring is embedded in the mold: it is inserted between the lip of the tire and used as a gasket. The seal mount is typically made of steel or other hard elastic material. It includes a tire that is pressed inward by the tire when the tyre is closed to form an extension of the lip to form a tight seal. No. 883 is illustrated in Figure 7. The seal ring is typically made of steel or other hard materials, which can be stretched inward to press on the tire to form the shape of the lip, and when the tire mold is closed, the at will form a tight seal ring. The problem with this tire mold construction is the mechanical complexity of inserting the seal ring between the tire lips after the green tire is placed in the tire mold and before the mold is closed. In addition, the 833 patent is a major design consideration related to its extensibility.

C: \ 1234 \ 55466, ptd page 7 V. Description of the invention (4) 1 From the position indicated by the dotted line * to the position of the solid line, please refer to line 13 to line 18 in column 5 of the 833 patent. Basic ^ Figure has removed the airbag from the mold, but its 883 can be closed and the tire can be closed during vulcanization, so the $ mechanism makes it limit the speed of the tire mold operation. '3 ϋ, complexity, and another design, as described in US Patent No. 丨, 982, 674 (, π 2), which stipulates that the seal ring must have _ telescopic side members to seal the seal 专 = Ϊlip part And prevent the outflow of pressurized gas or liquid. Comparison of the disc, 883 patent reveals the structure of the seal ring in the '674 patent = just before: it is placed before the green tire and the seal ring assembly are placed in the tire mold To: = This installation procedure is time-consuming and uncomfortable. Similarly, the side components are-very complex parts' as shown in Figure 3, because its operation is easy in other environments. A failure occurred. = It is seen that when manufacturing tires on a high-speed assembly line, there are still novel and non-airbag tire mold structures and talents to reduce: a) the time for women's green tires to be shaped and vulcanized. And / or pay for downtime when the mold is inoperable; and. ) The labor and material costs for installing a new vulcanization chaos bag and reloading it into a tire mold to resume operation. OBJECTS AND SUMMARY OF THE INVENTION One of the objectives of the present invention is to provide a tire mold structure without airbags and a method of installing a lifetime 2 into a mold and removing a vulcanized tire from a tire mold. , So, there is

C: \ 1234 \ 55466.ptd Page 8 V. Description of the invention (5) Ability to complete more than one additional application Ability to complete one or more of the following inventions If one of the objectives of the invention is to provide a tire mold including The sealing ring can be used in the mold of the tire tire, so as to expand the tire lip portion and run into the wheel. Another object of the present invention is to raise the sealing ring to prevent the pressure fluid from flowing from the mold wall of the cavity. Between the space, and while adapting. Please patent scope t and, secondary goals. An improved shaping and pressurized liquid for the easy and rapid birthing of tires into the cavity of the mold. For a tire with no airbag membrane, the inside of the raw tire leaks into the wheel construction and installation. It appears that the vulcanized wheel is not installed on the wheel. If the leaked structure, the tire is opposite to the tire mold The fetal lip is based on the second fetal cavity. The second method in the mold is another method in the tire lifting mold, wherein the wheel mold is placed on the top, and then any of the present invention is put in or taken out from the opening between the two, which discloses an improved mold part and each has a first and a second The first and second tire lip support parts are provided at the center opening for a green tire to be installed on a certain type and the sulfur tire can be easily taken out in the opposite direction. The first cavity and the second clamping ring are formed in the first cavity, and the first and second sealing rings are similar to the lip portion of the tire. According to the present invention, each of the contraction members has a μ portion, and the opposite direction constitutes the sealing ring. One is installed and sealed at the first and second at the first-and the first and annular tail ends, respectively, and will open in the center of the tire mold with space and the second one of the first lip support part second The seal ring is a ring constituting the outer circumferential portion of the seal ring, which is sandwiched from the opening and does not need to be removed from the wheel. Article mouth. The first end is used to divide. Shaped extension around the ring

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Page 9 438667 V. Description of the invention (6) The trailing end is thin. The seal ring can also have

Si Part ^ "The method of extending the circumference from the cabin, which is as described above: Good: Inflatable wheel with capsules. This method includes the following steps: First, put the scoop: ',,, and sac tire tires into- The lip part of the ring-shaped tire mold penetrates through the center of the lip part of the-and:-lip support part which is adjacent to-of the lip part. However, the tire η is tightened and introduced into the second lip support part. After the room air is used to enter the tire through the central opening, the waste body or liquid is removed to swell the green tire, so that the tire assembly is pressed against the mold soil of the tire mold to press and vulcanize it into a green tire assembly. Brief description of the drawing ^ means that the green tire assembly of the present invention combined with the seal ring of the present invention when the green tire assembly is placed at the beginning of a non-airbag tire mold is broken, side accident, broken, broken Cross-section view: View 2 Series—shows what a life tire assembly does in an open air-bagless tire mold and when the lower Φ seal ring has been moved to engage the lips of the green tire, side view, broken Cross-sectional view; means "when the seal ring indicated by the dotted line is in the normal position Figure 3 is a schematic side view of a 'broken cross-section' showing the raw tire assembly of the present invention combined with the sealed segment in a closed, non-airbag tire membrane before the introduction of pressurized gas to shape and cure the tire. ;

C: \ i234 \ 55466.ptd Page 10 438667 V. Description of the invention (7) A " Figure 4 shows the raw tire assembly of the present invention after the pressure gas is introduced to shape and vulcanize the tire before closing. A cross-sectional view of the airbag tire mold when it is centered and fitted with the pieces made in the seal ring, side view, and rupture; Figure 5 shows the upper seal ring on the lip of the green tire when the green tire is inserted into the tire mold. A cross-sectional view of a fragment made during bending when the seal ring is partially pressed, and a broken cross-sectional view; FIG. 6 shows the upper seal ring on the raw tire lip when the fully vulcanized tire is removed from the tire mold. Fragment, side view, and broken cross-section illustration of a fragment made when partially pressed over the seal ring while being bent; circle 7 is a schematic view of the seal ring of the present invention; and FIG. 8 has an embedded metal A cross-sectional view of an example of a selection example of a sealing ring of a support ring β 'Detailed description of the invention In order to best explain the present invention, Figure 1 shows a life tire assembly 丨 〇 At the beginning, an open airbag is placed The tire mold 2 is combined with the seal ring assembly 1 4 of the present invention. An important aspect of the present invention, as shown in FIG. 1, is that the tire mold 12 does not need to use a sulfurized airbag to shape the tire assembly. The tire mold 12 'includes, but is not limited to, a seal ring assembly 10 The ring 16 and the ring 8 and the sealing ring mounting structure 20 can be formed by any conventional method but do not form part of the present invention. -Mold structure The illustrated tire mold 12 has a first tire mold portion 22 and a matching second tire mold portion 24. Although the tire mold i 2 is described, the first tire mold portion 2 2 is directly above and is called the upper tire mold portion in order to match the second tire mold.

C: \ 1234 \ 55466.ptd Page 丨〗 5. Description of the invention (8) ----- For comparison, as long as the raw tire assembly can be put into the tire mold and the fixed and cured tire can be removed from the tire mold When it is taken out, it is still within the scope of this article: in order to locate the orientation of the mold part in any other convenient direction. The present invention focuses on the structure and method of the seal ring assembly i 4 so that it can improve the tire manufacturing method including faster manufacturing speed, & good tire quality, reducing the complexity of J tire molds, and reducing tire mold downtime. Time, and reduce wage costs when repairing tire molds. The seal ring 14 includes the seal ring 16 and the mounting structure 20 'for mounting the seal ring and any equivalent structure defined in this embodiment. A central mechanism 26 moves longitudinally up and down along the centerline axis 2 8 and is structured with two support rods 30 and 32. Although the two rods 30 and 32 shown in the figure are installed on the central mechanism 25 to move the two rods together, the scope of the present invention can also install the rods as independent movements between the rods = rod 3G One of the tail ends 30a and 32a of 32 and 32 is installed on the center mechanism 26 respectively. The other opposite ends 3 and 32b have clamp rings 34 and 36 ', respectively, and extend from there to fix the seal rings 16 and 18. It should be noted that the clamp rings 34 and 36 respectively have a clamp seat portion 34a and 36a, and are integrally mounted on the support cups 30 and 32, and a movable sealing fitting portion 34b and 36b, and use a conventional tool such as a screw 38 To fix. The seal fitting parts 34b and 36b respectively have mating surfaces 3 4 c and 3 6 c ′ and mating surfaces 40 a & 42 a (refer to FIG. 1) which closely correspond to the corresponding traditional lip rings 40 and 42 (refer to FIG. 1). Tyre portions 22 and 24 at the respective upper and lower portions. The seal rings 16 and 18 are substantially uniform, and are preferably made of a material having elasticity such as butyl synthetic rubber. Seal ring 16 and 18 code

C: 234X55466, ptd Page 12 8 7 V. Description of the invention (9) 'has a shape similar to a gasket, which is generally shown in Figure 7, where the mouth represents the sealing ring 16 and each has a thicker tail The ends 16a and 18a are provided with straps to allow them to be respectively mounted between the clamp seat portions 34a, 36a and the movable sealing ring-mounting portions 34b, 36b. The other opposite sides of the seal rings 16, 18 are from the two ends 16b, 18b, as shown in the figure, which are much thinner than the installation tail ends 16a, 18a, respectively. However, the thickness of the 'seal rings 16 and 18 may be constant, or even the outer ends 16b and 18b are thicker than the middle part. It should be noted that the thickness of the seal rings 6 and 18 will affect the time required for vulcanization (vulcanization time) of the tire lip portions 44 and 46. After the seal rings 16 and 18 are in close contact with the lip portions 44 and 46 of the tire, respectively, the vulcanizing liquid can easily force the seal ring against the inner surface of the tire assembly, which will be discussed in detail below. Between the respective tail ends 16a '18a and 16b, 18b, 18b of the seal rings 16 and 18, the seal ring and µ constitute junction surfaces 16c and 18c having outward curvatures. Generally, the bending radius of the curved joints 16 and 8 c of the seal ring μ and 18 is determined so that the curved joints of 16 c and 8 c are located in the tire mold area including the tire lip portion. It is shown as a part indicated by a dotted line in FIG. 2A. The seal ring 16 of the tire assembly 10 and the inner curved surface which can easily abut against its respective bead portions 4 4 and 4 δ. The curved shape of the sealing rings 16 and 18 will produce a natural mechanical slash of a rubber material, that is, the lip portion inserted into the green tire is clamped between the lip steel rings 42 and 44 and the sealing ring 16 and 18. To move it away from its natural position. Then, the pressure of the vulcanizing liquid presses the sealing rings 16 and 18 so as to closely contact the inner curved surfaces of the tire assembly 10's lip portions 44 and 46, forming an effective sealing effect to prevent the vulcanizing liquid from leaking therein. Operation method

C: \ 1234 \ 55466.ptd 苐 page 13 V. Description of the invention 'This method starts when the mold is open, that is, the upper mold portion 22 is isolated by the empty j. The square tire mold portion 24, and the heart mechanism 26 is in place. Seal the lower part by 18% to isolate the bead shim 42. The green tire assembly 10 includes a carcass 50, which has a tread portion 52 disposed around it, an unvulcanized, partially vulcanized, or fully vulcanized lining layer 54 which is aligned and fixed to the tire carcass The inner and second tire bead 56 and 58 are respectively located inside the tire bead portions 44 and 46 and are inserted into the lower tire bead portion 24 downward. The easy and fast insertion and removal of tire assemblies into and out of tire molds is an important aspect of the present invention and a direct result of an improved seal ring assembly. When the tire assembly 1 [) is initially moved into the lower tire mold portion 2 4, the wheel face lip portion 46 (the first lip portion of the tire is introduced into the mold that was open at the time) to push the seal ring 1 6 laterally Cause the seal ring to bend downward and extend the surface 16c of the seal ring away from the tire shame portion 46 as shown in FIG. 5 □ When the tire lip portion continues to move down to the lower tire mold portion 2 4, the tire lip portion 4 6 forces the seal ring 18 Bend downwards (not more than the degree to which the sealing ring 6 bends backwards), because the natural curvature of the surface 18c allows it to be more easily discounted to itself. Due to the stretchability of the seal ring, such a draft can be easily achieved. The ability of the loose seal children 16 and 18 to bend from their natural curvature is an important aspect of the present invention, which allows the tire assembly to be quickly placed in and taken out without the need of the prior art Tires need to) do any complicated mechanical actions or procedures to insert a sealing mechanism into the green tire assembly order to prevent the pressure medium formed and vulcanized, such as Jue, from leaking between the tire assembly and the inner wall of the tire mold The cavity of the tire mold is 60; as shown in FIG. 2, when the central mechanism is connected to the central axis 28 downward

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V. Description of the invention M) When moving, the process of putting the tire assembly 10 into the tire membrane will continue Q. In the stage shown in Figure 2, the clamp ring 3δ is seated on the bead rim 42. The sealing ring 18 is tightly pressed against the lining layer of the tire assembly 10. 5 4 Top 0 Note that the trailing end 18 b of the sealing ring 18 is arranged from the tire lip 5 8 toward the tire tread 52. Due to its natural bending rate, the seal ring 18 uses the inner surface 62 (lining layer 54) of the tire assembly 10 to form a mechanical closure. When the tire lip portion 4 6 is pressed against the tire rim 4 2, The tire lip portion 44 of the tire assembly 10 is located above the seal ring 16 for spatial isolation. Referring now to FIG. 3, the upper tire mold portion 22 and the lower tire mold portion 24 are sealingly joined below to form a tire cavity 60 that surrounds the tire assembly 10. When the upper tire mold portion 22 is moved to the lower tire mold portion 24 The bead ring 40 engages the tire bead portion 44 which contains the tire bead 56 of the tire and moves the bead portion of the tire down until the bead ring 40 abuts against the clamp ring 34. Then, the seal ring 16 forms a mechanical seal ring on the inner surface 62 ', that is, the lining layer 5 4 of the tire assembly 10 is the same as that described for the seal ring 18. Now referring to FIG. 4, it shows that the closed tire mold 12 and tire assembly 10 are pressurized with vulcanizing and shaping fluid or liquid to be introduced through the passage 6 4 disposed between the support rods 30 and 32. This pressure fluid presses the tire assembly 10 tightly against the tire mold wall. It is understood that the pressure of the fluid or liquid, which is typically steam or hot gas, presses the seal rings 16 and 18 tightly. In the tire lip portions 44 and 46, a strong sealing force is generated to prevent any fluid or liquid from flowing into the tire cavity 10 between the tire 10 and the inner surface 62 of the tire mold. After the green tire assembly 10 has been shaped and vulcanized, the fluid used for vulcanization and vulcanization is discharged through a hole (not shown). FJ'M'jlUIVS1 ii · ujmmulji.

C: \ 1234X55466, ptd page 15 5. Description of the invention (12) Between 30 and 32. After that, the upper mold portion 22 moves upward to leave the original position, and then, the center mechanism 26 moves along the central axis 28 to leave the lower tire mold-part 24, so that the sealing ring i 8 is removed from the lip portion of the sparse tire. 4 6 Taxes have moved away. Nevertheless, when the bent tire is released from the mold by a common device, the sealing ring 18 will be bent backward f as shown in FIG. 6t, and the tail and end 1 8b will be moved upwards. The lip portion 46 can be moved upward, and the lip portion 46 can be freely released from the seal ring 42 when the tire is removed from the tire mold 12. When the tire is further separated from the tire mold, the lip portion 46 also crosses the upper seal ring I6. However, due to the elasticity of the seal ring 16, the bead portion 46 can be moved through the upper seal ring without much difficulty. The ability of the sealing rings 16 and 18 to operate in the harsh environment of hot tire molds, and the tires must continuously push the sealing ring laterally when the tires are placed in or removed from the mold, which is one of the inventions Major features. That is, the seal rings 16 and 18 are retractable enough to allow the tire to be simply and quickly placed down into the mold and then taken out of the tire mold without any adjustments to the position of the seal ring '. A small amount of movement in the vertical direction can be easily operated by the central mechanism 26. In addition, when the seal rings 丨 6 and 〖8 cross the seal in the tire transverse direction due to the frequent telescopic wear caused by moving the lip portions 44 and 46 of the tire assembly 丨 〇, the downtime required for its replacement can be reduced to Minimal 'Because the seal ring has elasticity, it can be easily taken out and replaced in the clamp rings 34 and 36 and the strut arms 30 and 32, respectively, as described above. 3 Optional embodiments are perfect seal rings 3 2 and 3 4 can effectively close the lip portion of the tire 'but in the terms of the present invention there must be a pressed gold in the seal ring in the shape of a gasket

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Page 16 V. Description of the invention (i3) f f entry 72, shown in Figure 8. The metal insert 72 can provide the seal ring with additional strength than the two parts of rubber material. Office, clothing, 0, and 5 are in accordance with the original 2 ... of the sealing rings 18 and 18 discussed above, that is, they have the same 1 β f and ^ shape except the embedded 72, which has been modified. The seal ring 70 can be replaced if necessary. The embedded metal washer 72 may be constructed of a retractable metal such as spring steel, which can bend the seal ring 70 to make the tire assembly tire traverse the seal ring 70 in the manner previously described. The metal insert M lifting ring 70 can contact the inside surface of the lip portion of the tire at first: i Seal ring 70-an increased slope to prevent pressure for shaping and vulcanization. W: : Hot steam 'is injected into the inner surface of the tire assembly at the beginning of the pressure medium. The inlay 72 is shown in the example drawing from the tail end τΛ of the seal ring to a position close to the other tail end 70b of the seal mount, which is also in the present The terms of the invention are to shorten the insert 72 to provide a well-balanced seal. It is obvious that the υ 'assembly has the flexibility to be moved when it crosses the seal ring. According to the present invention, it provides a non-operation tire. The mold method satisfies the goals, devices, and functions of the first ^^ heart. According to the invention ': the airbag-free tire mold includes a seal I, which allows the tire to be easily and quickly shaken in the wheels Ri, g, and the net gear, so that the-gas or liquid inflates and The vulcanized lifetime tire assembly will not leak around the lip portion of the tire and flow into the cavity. One way to make τ ® • Wrap in raw tires to cook scum tire molds can make tires quickly and quickly… A Xiang k printed and easily put in or out of the mold

C: \ 1234 \ 55466.ptd Page 17 43 86 67 V. Description of the invention (14) Take out without putting or removing any mold parts between the two lip of the tire. Although the present invention has been described in conjunction with the embodiments, it is obvious that for those skilled in the art, many options, corrections, and changes can be made in accordance with the aforementioned teachings. Therefore, the intention of the present invention is to include all of these optional, corrections, changes and the like within the spirit and scope of the scope of the attached patent application.

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Claims (1)

4 3B667 6. Scope of patent application 1. A tire mold, characterized in that: the first and second mold portions each have first and second tire lip support portions and constitute a cavity; the first and second tire lip support portions When the first and second molds are partially closed, they are separated from each other by space so as to provide an opening in the cavity; and a seal ring assembly. The characteristics of the seal ring assembly are as follows: the first and second clamp rings protrude through the first And the opening of the second mold; and the first and second sealing rings are respectively fixed on the first and second clamp rings, so that the lip portion of a tire is tightly sealed to the first and second lip support portions. 2. The tire mold according to item 1 of the patent application is characterized in that the first and second seal rings are ring-shaped telescopic members, which are respectively fixed to the first and second clamping ring portions around the inner circumference. 3. The tire mold according to item 2 of the patent application has the additional feature that each of the first and second seal rings has its own inner peripheral circumference, and is more than the outer circumference of its respective outer ring. A part and a middle part extend from a thicker inner peripheral part of one of the first and second seal rings to a thinner outer peripheral part. 4. The tire mold according to item 3 of the patent application is characterized in that the middle portion is inclined from the thicker inner peripheral portion to the thinner outer peripheral portion. 5. The tire mold according to item 2 of the scope of Shen Su patent has the additional feature that the first and second seal rings are made of elastic and deformable elastic materials. C: \ 1234 \ 55466.ptd The method for manufacturing a pneumatic tire is characterized in that the steps are: do n’t put a green tire assembly with first and second lip parts into the < i. The first and second molds are formed and the surface = ^ The mold cavity forms the inner side of the mold portion adjacent to the opening in the mold cavity. The first and second lip portions of the wheel are pressed against the first and second molds, respectively. 5 shaped bead lip support parts, and the first and second seal rings are fixed on the support members of the first and second seal clip rings protruding in the opening; Part of the pressure gas or 2 body is used to enter the green tire assembly through the opening and is compacted on the first and second ring-shaped lip support portions having first and second loose and sealing rings respectively. 8 The method according to item 7 of the scope of patent application, which further features the step of bending the first and second seal rings downward to a lower portion of a first and second mold portion when the tire is placed in the mold cavity. 9. The method according to item 7 of the scope of patent application, which is further characterized by the step of bending the first and second sealing rings up to a lower portion of a first and first mold part when the tire is unloaded into the cavity. 10. The method according to item 7 of the scope of patent application is further characterized in that the green tire assembly in the cavity is inflated with pressurized gas or liquid to press and vulcanize the green tire assembly to turn it into a vulcanized tire. C: \ 1234 \ 55466.ptd 苐 page 20 6. Scope of patent application 11. The method according to item 10 of the patent application scope is characterized by the step of removing the vulcanized tire from the mold part. 1 2. The method according to item 7 of the scope of the patent application is further characterized by the step of forming a green tire assembly having at least a part of a vulcanized, seamless seam lining member. C: \ I234 \ 55466.ptd