KR101763920B1

KR101763920B1 - Tire curing module

Info

Publication number: KR101763920B1
Application number: KR1020150160458A
Authority: KR
Inventors: 탁세원; 김인영; 이민주; 정주열
Original assignee: 넥센타이어 주식회사
Priority date: 2015-11-16
Filing date: 2015-11-16
Publication date: 2017-08-01
Also published as: KR20170056953A

Abstract

One embodiment of the present invention relates to a bladder comprising a bladder arranged to inflate a green tire, a bottom support disposed on one side of the bladder to support the bladder, A top support having a curved surface in an area corresponding to a side of the area facing the bladder and connected to the area facing the bladder and a top support part for supporting the bladder among the areas of the top support part A tire vulcanization module comprising a bead ring having a curved surface opposite to a curved surface of the top supporting portion and supporting the top supporting portion while contacting one region of the opposite surface.

Description

Tire curing module < RTI ID = 0.0 >

Embodiments of the present invention relate to a tire vulcanization module.

The vehicles that the users are traveling with are made up of many parts, among which the tires have a great effect on the driving of the vehicle, and can be said to be one of the key components for securing the safety of the user.

Especially, due to the development of industry, the increase of the movement of logistics, the increase of the moving amount due to the increase of the individual workload, and the increase of the family life are increasing the automobile operation.

Meanwhile, in the tire manufacturing process, it is possible to manufacture a semi-finished product by mixing elastic or flexible materials or other materials, and then molding the semi-finished products to prepare a green tire.

The green tire can then be vulcanized to manufacture the tire.

The vulcanizing process includes a step of applying a green tire to a predetermined temperature for a predetermined time. For example, a green tire is inserted between the molds, and the green tire is pressed in the direction of the mold inside the green tire, A corresponding tire can be manufactured.

There is a limit in improving the durability of a vulcanizing apparatus for a vulcanizing process as a high-temperature or high-pressure vulcanizing process. Particularly, in a repeated vulcanizing process, the flexible members of the apparatuses for the vulcanizing process are damaged, There is a limit in improving the efficiency of the process, and as a result, the tire manufacturing characteristics are reduced.

Embodiments of the present invention provide a tire vulcanization module that improves the efficiency of a vulcanization process, improves durability of a vulcanization module required in a vulcanization process, and improves tire manufacturing characteristics.

In this embodiment, the top support portion includes a body portion including a central region of the top support portion and an extension extending from the body portion, wherein at least one region of the extension portion contacts the bladder and one region of the extension portion And may have the curved surface.

In this embodiment, the extension of the top support comprises a stepped area and a stepped wall, the stepped area having a bottom surface that does not exceed an extension of the top surface of the extension and is defined by the stepped wall, The bottom surface of the step difference region.

In this embodiment, the extended portion of the top supporting portion corresponds to the side surface of the top supporting portion and includes a first extending opposed region and a second extending opposed region in a region opposed to the bead ring, The second extending opposing region being connected to an upper surface of the top support and including at least a planar region, the second extending opposing region being connected to the first extending opposing region and having the curved surface.

In this embodiment, the radius of curvature of the curved surface of the second extending opposed region is smaller than the radius of curvature of the curved surface of the bead ring.

In this embodiment, the radius of curvature of the curved surface of the second extending opposed region is 1.5 mm to 2.5 mm.

In this embodiment, the first extended opposing region may be spaced apart from an area of the bead ring that is opposite to the first extended opposing region.

In this embodiment, the first extended area may have an inclined surface with respect to the bladder.

In the present embodiment, the bead ring includes a support portion contacting and supporting one region of the top supporting portion, and a connection portion connected to the support portion, wherein an extension line of the lowermost surface of the support portion has a distance from the lowermost surface of the connection portion, The gap may be smaller than the thickness of one region of the top supporting portion.

In the present embodiment, the connection portion of the bead ring includes a first connection opposing region and a second connection opposing region arranged so as to be spaced apart from and opposite to the top supporting portion,

The first connection opposing region is connected to the supporting portion and includes at least a planar region, and the second connection opposing region is connected to the first connection opposing region and may include the curved surface.

In this embodiment, the first connection opposing region of the bead ring may be spaced apart from a region of the top supporting portion that faces the first connection opposing region.

In this embodiment, the first connection opposing region may have an inclined surface with respect to the bladder.

In this embodiment, the extension line of the lowermost surface of the top supporting portion may be spaced apart from the lowermost surface of the bead ring.

Other aspects, features, and advantages will become apparent from the following drawings, claims, and detailed description of the invention.

The tire vulcanization module according to the present embodiment improves the efficiency of the vulcanization process, improves the durability of the vulcanization module required in the vulcanization process, and improves the tire manufacturing characteristics.

1 is a cross-sectional view schematically showing a tire vulcanization module according to an embodiment of the present invention.
FIG. 2 is an enlarged view of FIG. 1 A. FIG.
3 is a cross-sectional view showing the top support portion of Fig. 1 in detail.
4 is a plan view specifically showing the top supporting portion of Fig.
Fig. 5 is a cross-sectional view specifically showing the bead ring of Fig. 1;
FIG. 6 is an enlarged view of FIG. 2B. FIG.
Fig. 7A is a view showing a modification of Fig. 6. Fig.
Fig. 7B is a view showing another modification of Fig. 6. Fig.

BRIEF DESCRIPTION OF THE DRAWINGS The present invention is capable of various modifications and various embodiments, and specific embodiments are illustrated in the drawings and described in detail in the detailed description. The effects and features of the present invention and methods of achieving them will be apparent with reference to the embodiments described in detail below with reference to the drawings. However, the present invention is not limited to the embodiments described below, but may be implemented in various forms.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings, wherein like reference numerals refer to like or corresponding components throughout the drawings, and a duplicate description thereof will be omitted .

In the following embodiments, the terms first, second, and the like are used for the purpose of distinguishing one element from another element, not the limitative meaning.

In the following examples, the singular forms "a", "an" and "the" include plural referents unless the context clearly dictates otherwise.

In the following embodiments, terms such as inclusive or possessive are intended to mean that a feature, or element, described in the specification is present, and does not preclude the possibility that one or more other features or elements may be added.

In the drawings, components may be exaggerated or reduced in size for convenience of explanation. For example, the size and thickness of each component shown in the drawings are arbitrarily shown for convenience of explanation, and thus the present invention is not necessarily limited to those shown in the drawings.

In the following embodiments, the x-axis, the y-axis, and the z-axis are not limited to three axes on the orthogonal coordinate system, and can be interpreted in a broad sense including the three axes. For example, the x-axis, y-axis, and z-axis may be orthogonal to each other, but may refer to different directions that are not orthogonal to each other.

If certain embodiments are otherwise feasible, the particular process sequence may be performed differently from the sequence described. For example, two processes that are described in succession may be performed substantially concurrently, and may be performed in the reverse order of the order described.

1 is a cross-sectional view schematically showing a tire vulcanization module according to an embodiment of the present invention.

Referring to FIG. 1, the tire vulcanization module 100 may include a bladder 105, a top support 110, a bottom support 120, and a bead ring 130. 1 is a part of a sectional view of the tire vulcanization module 100 for the convenience of explanation, and may correspond to, for example, half of the tire vulcanization module 100.

In addition, as an alternative embodiment, the tire vulcanization module 100 may further include a center post 150.

The bladder 105 is a member used in curing the green tire. The bladder 105 can press the green tire by the pressurized heating medium in the mold direction. 1, a mold part (not shown) is disposed outside the bladder 105, that is, in the direction opposite to the direction toward the top supporting part 110 and the bottom supporting part 120, and the bladder 105 After a green tire (not shown) is disposed between the mold portions (not shown), the bladder 105 presses the green tire toward the mold portion (not shown) so that the green tire can be deformed to correspond to the mold portion . That is, the green tire may have a surface pattern corresponding to a mold part (not shown) and may be molded into a desired shape.

The bladder 105 may be formed of a flexible material, and may include, for example, a rubber material. As a specific example, the bladder 105 may be made of rubber such as butyl rubber, modified butyl rubber, ethylene propylene rubber, ethylene propylene diene rubber (EPDM), nitrile butadiene rubber, hydrogenated nitrile butadiene rubber, styrene butadiene rubber, chloroprene rubber, , Epichlorohydrin rubber, acrylic rubber, chlorosulfonated epichlorohydrin rubber, acrylic rubber, chlorosulfonated polyethylene, silicone rubber or fluorine rubber, and two or more of the above materials may be used in combination have.

As an alternative embodiment, additives may be added to the rubber material to improve the characteristics of the bladder 105, and fiber reinforcements may be included.

The bottom support 120 may be disposed on one side of the bladder 105 to support the bladder 105. In addition, as an alternative embodiment, the bottom support 120 may fix the bladder 105 during the vulcanization process and may secure the bladder 105 with the top support 110, which will be described later.

Further, the bottom support 120 may be connected to the center post 150.

One side of the bladder 105 may be connected to the lower portion of the center post 150 and the other side thereof may be connected to the bottom supporting portion 120 and the top supporting portion 110.

As an alternative embodiment, a separate connecting member (not shown) may be disposed between the center post 150 and the bladder 105. For example, a member for connecting and fixing the bladder 105 to the lower region of the center post 150, that is, the region opposite to the direction toward the bottom support 120, may be disposed.

A more detailed description of the bottom support 120 will be given later.

The top support 110 is arranged to overlap at least one region with the bottom support 120 and is disposed on top of the bottom support 120. [ That is, the top supporting portion 110 may be disposed to face the opposite side of the surface of the bottom supporting portion 120 facing the center post 150.

One edge of the bladder 105 can be disposed between the top support 110 and the bottom support 120 and one area of one side of the bladder 105 can be in contact with the bottom support 120 , One area of the other side of the bladder 105 can be in contact with the top supporting portion 110. The details of the top supporting unit 110 will be described in detail with reference to the drawings to be described later.

The bead ring 130 may support the top support 110 while contacting one region of the top support 110. For example, one area of the bead ring 130 may overlap with the top support 110, and the other area may not overlap the top support 110. [ The bead ring 130 may also include a region that overlaps the top support 110 and the bottom support 120 and may include other regions that do not overlap.

As an alternative embodiment, the bead ring 130 may overlap the bladder 105.

FIG. 2 is an enlarged view of FIG. 1 A. FIG. FIG. 3 is a cross-sectional view specifically showing the top supporting portion of FIG. 1, and FIG. 4 is a plan view specifically showing the top supporting portion of FIG.

Fig. 5 is a cross-sectional view specifically showing the bead ring of Fig. 1, and Fig. 6 is an enlarged view of Fig.

One region of the bladder 105 may be disposed between the top support 110 and the bottom support 120.

2, the bottom support 120 may include a body portion 120M and a peripheral portion 120S, and the peripheral portion 120S may be connected to the body portion 120M. The peripheral portion 120S may have an inclined surface as an alternative embodiment, and may have a shape in which the width thereof decreases as the distance from the body portion 120M increases.

The bottom support 120 may have an engagement groove 122, for example, an engagement groove 122 may be formed in the peripheral portion 120S. The latching portion 105B of the bladder 105 can be received in the latching groove 122 to reduce or prevent the movement of the bladder 105 during the vulcanization process. As an alternative embodiment, the latching portion 105B of the bladder 105 may be a region formed at one edge of the bladder 105 and refracted in the direction crossing the longitudinal direction of the bladder 105. [

As an alternative embodiment, the peripheral portion 120S of the bottom support 120 may include one or more grooves 121. [ As an alternative embodiment, the corresponding area 105a of one side of the bladder 105 may correspond to the groove 121. So that the bladder 105 can be effectively supported by the bottom support 120.

The top support 110 may be in contact with one side of the bladder 105 and may be in contact with the opposite side of the side of the bladder 105 that faces the bottom support 120, for example.

2 to 4, the top support 110 may include a body portion 111 and an extension portion 112.

As an alternative embodiment, the top support 110 may have a generally circular shape in plan view and a plate shape in cross section. Also, as an alternative embodiment, the top support 110 may have a central hole 110H1, and may further have a peripheral hole 110H2. The center hole 110H1 and the peripheral hole 110H2 may be formed to easily arrange or engage the top support 110 with another member such as the bottom support 120 or the center post 150. [ .

The main body portion 111 of the top supporting portion 110 is a region including a central region of the top supporting portion 110 and the extending portion 112 is an area extending from the main body portion 111. [ As an alternative embodiment, the extension 112 may have a shape radially extending from the body portion 111 while surrounding the body portion 111. [

At least one region of the top support 110 may be in contact with the bladder 105 and may support the bladder 105 with the bottom support 120. As an alternative embodiment, one region of the extension 112 of the top support 110 may be in contact with the bladder 105, for example a portion of the surface of the extension 112 facing the bottom support 120 The area can be in contact with the bladder 105.

As an alternative embodiment, the edge of the extension 112, that is, the area of the extension 112 opposite to the area connected to the body 111, may include a curved surface. Figs. 2 and 3 are exemplary views of the edge of the extension 112, and a detailed description thereof will be given later with reference to Fig.

As an alternative embodiment, the extension 112 may include a step region 112a and a step wall 112b in one region. The step difference region 112a may have a bottom surface that does not exceed the extension of the upper surface of the extension portion 112 and may be defined by the stepped wall 112b. That is, the side surface of the step difference region 112a may be the stepped wall 112b.

In an alternative embodiment, the bottom surface of the step difference region 112a may have a flat surface, and the bead ring 130 may stably contact the step difference region 112a.

Referring to FIGS. 2 and 5, the bead ring 130 may include a support 131 and a connection part 132.

The supporting portion 131 can support the top supporting portion 110 and can contact the top supporting portion 110. For example, the lower surface of the support portion 131, that is, the area of one surface facing the bladder 105 can contact the extended portion 112 of the top supporting portion 110, more specifically, the bottom surface of the stepped region 112a have.

The stepped wall 112b of the extension 112 may be spaced apart from the edge of the support 131 of the bead ring 130. [ However, as another example, the stepped wall 112b of the extension portion 112 may be in contact with the edge of the support portion 131 of the bead ring 130. [ The supporting portion 131 of the bead ring 130 can be easily disposed on the top supporting portion 110 through the step difference region 112a and the stepped wall 112b and the stepped wall 112b can be easily moved to the top supporting portion 110 Lt; / RTI >

The connection portion 132 may be connected to the support portion 131 and may be connected to a region of the support portion 131 in a direction away from the top support portion 110.

The thickness of the connection portion 132 of the bead ring 130 in one direction may be greater than the thickness of the support portion 131. [ A space may be formed between the support portion 131 and the connection portion 132 so as to be connected to the support portion 131 and the connection portion 132 and a space of the top support portion 110, One region of the portion 112 may be disposed.

One region of the connection portion 132 corresponding to this space in the region of the bead ring 130 may include a curved surface. 2 and 5 show an exemplary form of a curved surface of one region of the connecting portion 132, and a more detailed description thereof will be described later with reference to FIG.

FIG. 6 is an enlarged view of FIG. 2B. FIG.

6, the upper surface of the extended portion 112 of the top supporting portion 110, that is, the opposite surface to the surface facing the bladder 105 is formed on one surface of the supporting portion 131 of the bead ring 130, that is, The lower surface of the base plate.

The connection portion 132 of the bead ring 130 may be connected to the support portion 131 and have a step difference. That is, the extended line of the lower surface of the support portion 131 may overlap with the connection portion 132. A distance H2 between the extension of the lower surface of the support 131 and the connection part 132 is formed.

The connection portion 132 may be disposed to face the extension portion 112 of the top support portion 110. The connection portion 132 may include a first connection facing region 132S and a second connection facing region 132C.

The first connection facing region 132S is connected to the support portion 131 and can be opposed to the extension portion 112. [ The first connection opposing region 132S may include at least a planar region. As an alternative embodiment, the first connection facing region 132S may include at least a planar region connected with the support portion 131. [

The second connection counterpart area 132C is connected to the first connection counterpart area 132S and specifically to the area of the first connection counterpart area 132S which is opposite to the area connected to the support part 131 have.

The second connection opposite region 132C may include at least a curved surface. The curved surface provided in the second connection facing area 132C may have a curvature radius R2.

The top support 110 includes a side of the extension 112 of the top support 110 and is a region facing the connection 132 of the bead ring 130 and defining a first extension opposing region 112S and a second extension & And an opposite region 112C.

The first extended opposing region 112S may be connected to the top surface of the top support 110 and may be connected to the top surface of the extension 112 of the top support 110, As shown in FIG.

The first extended opposing region 112S may comprise at least a planar region. As an alternative embodiment, the planar region of the first extended opposing region 112S may face the planar region of the first connected opposing region 132S.

There may be a gap G2 between the extension 112 and the connecting portion 132 and as an alternative a planar region of the extension 112 and a planar region of the connecting portion 132, And the first extended opposing area 112S may correspond to the interval G2.

As an alternative embodiment, the first and second extension opposing regions 132S and 112S may have regions having a gap G2 in parallel with each other.

As an alternative embodiment, this gap G2 may be between 0.4 mm and 0.6 mm. If the gap G2 is smaller than 0.4 mm, the space between the connecting portion 132 of the bead ring 130 and the extending portion 112 of the top supporting portion 110 is reduced, and the connecting portion 132 of the bead ring 130, And the extension 112 of the top support 110 may occur. Further, if the gap G2 is larger than 0.6 mm, the bead ring 130 is not easy to effectively support the top supporting portion 110.

As an alternative embodiment, this gap G2 may be between 0.5 mm and 0.52 mm.

As an alternative embodiment, the first connecting opposing region 132S and the first extending opposing region 112S may have an inclined plane, and the inclined plane may include an acute angle less than 90 with respect to the bladder 105 .

The second extended opposing region 112C may be connected to the first extended opposing region 112S and specifically to the region of the first extended opposing region 112S facing the bladder 105. [

The second extended opposing area 112C may include at least a curved surface. The curved surface provided in the second extended opposing area 112C may have a curvature radius R1.

The extended portion 112 may have a thickness H1. Specifically, a region of the extended portion 112 in contact with the supporting portion 131 may have a thickness H1. In an alternative embodiment, the thickness H1 may be the thickness of the region corresponding to the step difference region 112a of the region of the extension portion 112. [

The thickness H1 may be different from the above-mentioned thickness H2. For example, the thickness H1 may be greater than the thickness H2. The thickness H1 and the thickness H2 may have a difference G1 and the difference may be a difference G1 between the lowermost surface of the connecting portion 132 and the lowermost surface of the extending portion 112 .

The bottom surface of the bead ring 130 may be spaced apart from the extension of the bottom surface of the top support 110 and may be spaced apart with a gap G1.

The gap G1 may be 0.4 mm to 0.6 mm. If the gap G1 is less than 0.4 mm, it may affect the bladder 105 and the bead ring 130 due to friction between the bead ring 130 and the bladder 105 during the vulcanization process. In addition, if the gap G1 is larger than 0.6 mm, the bladder 105 can move abnormally during the vulcanization process.

As an alternative embodiment, this gap G1 may be between 0.5 mm and 0.52 mm.

As an alternative embodiment, the thickness H1 may be 7.5 mm and the thickness H2 may be 7 mm.

The curvature radius R1 of the curved surface provided in the second extended opposing area 112C as an alternative embodiment may be smaller than the curvature radius R2 of the curved surface provided in the second connected opposing area 132C. This can reduce the load due to the top support 110 during expansion of the bladder 105 during the vulcanization process and reduce the load on the bladder 105 between the second extending opposed region 112C and the second connecting opposed region 132C. ) Can be relieved of impact during the vulcanization process.

As an alternative embodiment, the radius of curvature R1 of the curved surface provided in the second extended opposing area 112C may be 1.5 mm to 2.5 mm, for example 2 mm.

The radius of curvature R2 of the curved surface provided in the second connection facing region 132C may be between 4 mm and 6 mm and may be, for example, 5 mm.

Fig. 7A is a view showing a modification of Fig. 6. Fig.

Referring to FIG. 7A, the upper surface of the extended portion 112 'of the top supporting portion, that is, the opposite surface to the surface facing the bladder is formed on one surface of the supporting portion 131' of the bead ring 130 ' .

For convenience of explanation, the description will be focused on the differences from the above-described embodiment.

The thickness (H1) and the thickness (H2) may be different. For example, the thickness H1 may be greater than the thickness H2. The thickness H1 and the thickness H2 may have a difference G1 and the difference may be a distance G1 from an extension of the lowermost surface of the connecting portion 132 ' ). &Lt; / RTI >

The gap G1 may be 1.4 mm to 1.6 mm. For example, the gap G1 may be 1.5 mm

As an alternative embodiment, the thickness H1 may be 8.5 mm and the thickness H2 may be 7 mm.

The radius of curvature R1 of the curved surface provided in the second extending opposed region may be equal to the curvature radius R2 of the curved surface provided in the second connecting opposed region.

For example, the radius of curvature R1 of the curved surface provided in the second extending opposed region and the radius of curvature R2 of the curved surface provided in the second connecting opposed region may be 5 mm.

Fig. 7B is a view showing another modification of Fig. 6. Fig.

Referring to Fig. 7B, the upper surface of the extension 112 "of the top support, i.e. the opposite surface of the bead ring 130 ", facing the bladder, .

The thickness (H1) and the thickness (H2) may be different. For example, the thickness H1 may be greater than the thickness H2. The thickness H1 and the thickness H2 may have a difference G1 and this difference may be caused by a gap G1 between the lowermost surface of the connecting portion 132 " and the lowermost surface of the connecting portion 112 " Lt; / RTI >

The gap G1 may be 0.4 mm to 0.6 mm. For example, the gap G1 may be 0.5 mm

The tire vulcanization module of this embodiment may include a bladder, a top support, a bottom support, and a bead ring.

The bottom support can support the bead ring and, as an optional embodiment, can secure one end of the bead ring. Accordingly, in the vulcanization process using the tire vulcanization module of the present embodiment, the bladder can be firmly maintained and the uniformity of the vulcanization process can be improved.

The second extending opposed region of the extension of the top support has a curved surface and the second connecting opposed region of the connection of the bead ring has a curved surface so that the bladder is stressed by the bead ring and top support during vulcanization Can be reduced or prevented.

As an alternative embodiment, the curvature radius R1 of the curved surface provided in the second extending opposed region of the extension of the top support may be less than the curvature radius R2 of the curved surface provided in the second connecting opposed region of the connecting portion of the bead ring. This can reduce or prevent the bladder from being abnormally stressed or damaged and tearing in the region between the bead ring, the top support and the bottom support during the vulcanization process.

As an alternative embodiment, the thickness H1 may be greater than the thickness H2 described above, whereby the thickness H1 and thickness H2 may have a difference G1, And the gap G1 between the extension lines of the lowermost portion of the extension portion. It is possible to appropriately control the gap G1 to reduce the load applied to the bladder and to reduce the defects during the vulcanization process.

In an alternative embodiment, the first extending region of the connecting portion of the bead ring and the first extending opposing region of the extension of the top supporting portion may have regions having a gap G2 in parallel with each other. It is also possible to appropriately control the interval G2 to reduce the impact that the bladder may receive in the region between the bead ring and the top support portion.

Particularly, when the radius R1 is made smaller than the radius R2, the planar region provided in the first extended region of the extended portion of the top supporting portion can be effectively extended to face the planar region corresponding to the first connection opposite region, (G2) can be effectively controlled.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art . Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

The specific implementations described in the embodiments are, by way of example, not intended to limit the scope of the embodiments in any way. For brevity of description, descriptions of conventional electronic configurations, control providing methods, software, and other functional aspects of the providing methods may be omitted. Also, the connections or connecting members of the lines between the components shown in the figures are illustrative of functional connections and / or physical or circuit connections, which may be replaced or additionally provided by a variety of functional connections, physical Connection, or circuit connections. Also, unless explicitly mentioned, such as "essential "," importantly ", etc., it may not be a necessary component for application of the present invention.

The use of the terms "above" and similar indication words in the description of the embodiments (in particular in the claims) may refer to both singular and plural. In addition, in the embodiment, when a range is described, it includes the invention to which the individual values belonging to the above range are applied (if there is no description to the contrary), the individual values constituting the above range are described in the detailed description . Finally, the steps may be performed in an appropriate order, unless explicitly stated or contrary to the description of the steps constituting the method according to the embodiment. The embodiments are not necessarily limited to the description order of the steps. The use of all examples or exemplary terms (e.g., etc.) in the examples is for the purpose of describing the embodiments in detail and is not intended to be limited by the scope of the claims, It is not. It will also be appreciated by those skilled in the art that various modifications, combinations, and alterations may be made depending on design criteria and factors within the scope of the appended claims or equivalents thereof.

100: How to provide tire rental service
110: Top support
120: bottom support
130: Bead ring
140: second tire information storage unit
150: Center Post

Claims

A bladder arranged to inflate a green tire;
A bottom support disposed on one side of the bladder to support the bladder;
A top portion of the bladder arranged to overlap with the bottom support portion in at least one region and configured to support an opposite surface of the region of the bladder facing the bottom support portion and having a curved surface in a region corresponding to a side surface connected to the region facing the bladder; A support; And
And a bead ring having a curved surface opposed to a curved surface of the top supporting portion and supporting the top supporting portion while being in contact with one area of an area opposite to the area for supporting the bladder among the areas of the top supporting portion,
Wherein the top supporting portion has the curved surface in a region corresponding to a surface facing the bead ring and a surface facing the bottom supporting portion,
Wherein at least one region of the region corresponding to the curved surface of the top support portion is spaced from the bladder and the bead ring.

The method according to claim 1,
The top support portion includes a body portion including a central region of the top support portion and an extension extending from the body portion,
Wherein at least one region of the extension portion contacts the bladder and one region of the extension portion has the curved surface.

3. The method of claim 2,
Wherein the extension of the top support comprises a step region and a step wall,
Wherein the stepped region has a bottom surface that does not exceed an extension of the top surface of the extension and is defined by the stepped wall,
Wherein the bead ring is in contact with a bottom surface of the stepped area.

3. The method of claim 2,
Wherein the extension of the top support portion includes a first extending opposed region and a second extending opposed region in a region corresponding to a side of the top supporting portion and opposite the bead ring,
Wherein the first extending opposing region is connected to an upper surface of the tower support and includes at least a planar region,
Wherein the second extending opposing region is connected to the first extending opposing region and has the curved surface.

5. The method of claim 4,
Wherein the radius of curvature of the curved surface of the second extending opposed region is smaller than the radius of curvature of the curved surface of the bead ring.

5. The method of claim 4,
And the radius of curvature of the curved surface of the second extending opposing region is 1.5 mm to 2.5 mm.

5. The method of claim 4,
Wherein the first extending opposing region is spaced apart from and spaced from a region of the bead ring that is opposite the first extending opposing region.

5. The method of claim 4,
Wherein the first extending opposing region has an inclined surface with respect to the bladder.

The method according to claim 1,
Wherein the bead ring includes a support portion that contacts and supports one region of the top support portion, and a connection portion that is connected to the support portion,
Wherein an extension line of the lowermost surface of the support portion has an interval from the lowermost surface of the connection portion,
Wherein the gap is smaller than the thickness of one region of the tower support.

10. The method of claim 9,
Wherein the connection portion of the bead ring includes a first connection opposing region and a second connection opposing region that are spaced apart from and opposed to the top supporting portion,
Wherein the first connection opposing region is connected to the support and comprises at least a planar region,
Wherein the second connection opposite region is connected to the first connection opposite region and comprises the curved surface.

11. The method of claim 10,
Wherein the first connecting opposing region of the bead ring is spaced apart from an area of the top supporting portion that faces the first connecting opposite region.

11. The method of claim 10,
Wherein the first connection opposing region has an inclined surface with respect to the bladder.

The method according to claim 1,
Wherein the extension of the bottom surface of the top support portion is spaced apart from the lowermost surface of the bead ring.

The method according to claim 1,
Wherein the bottom support portion includes a body portion and a peripheral portion connected to the body portion,
Wherein a hooking groove is formed in the peripheral portion and one region of an edge of the bladder is disposed in the latching groove.