WO2022269943A1 - タイヤ成形用金型及びタイヤ製造方法 - Google Patents
タイヤ成形用金型及びタイヤ製造方法 Download PDFInfo
- Publication number
- WO2022269943A1 WO2022269943A1 PCT/JP2021/043052 JP2021043052W WO2022269943A1 WO 2022269943 A1 WO2022269943 A1 WO 2022269943A1 JP 2021043052 W JP2021043052 W JP 2021043052W WO 2022269943 A1 WO2022269943 A1 WO 2022269943A1
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- WIPO (PCT)
- Prior art keywords
- tire
- segment
- tread
- molding
- external force
- Prior art date
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- 238000000465 moulding Methods 0.000 title claims abstract description 103
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- 238000004073 vulcanization Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 description 5
- 229920003051 synthetic elastomer Polymers 0.000 description 3
- 239000005061 synthetic rubber Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
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
- B29C33/02—Moulds or cores; Details thereof or accessories therefor with incorporated heating or cooling means
-
- 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
- B29C33/20—Opening, closing or clamping
- B29C33/26—Opening, closing or clamping by pivotal movement
-
- 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)
- B29D30/0601—Vulcanising tyres; Vulcanising presses for tyres
- B29D30/0606—Vulcanising moulds not integral with vulcanising presses
-
- 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)
- B29D30/0601—Vulcanising tyres; Vulcanising presses for tyres
- B29D30/0606—Vulcanising moulds not integral with vulcanising presses
- B29D30/0629—Vulcanising moulds not integral with vulcanising presses with radially movable sectors
-
- 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)
- B29D30/0601—Vulcanising tyres; Vulcanising presses for tyres
- B29D30/0606—Vulcanising moulds not integral with vulcanising presses
- B29D2030/0607—Constructional features of the moulds
-
- 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)
- B29D30/0601—Vulcanising tyres; Vulcanising presses for tyres
- B29D30/0606—Vulcanising moulds not integral with vulcanising presses
- B29D2030/0607—Constructional features of the moulds
- B29D2030/0612—Means for forming recesses or protrusions in the tyres, e.g. grooves or ribs, to create the tread or sidewalls patterns
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2030/00—Pneumatic or solid tyres or parts thereof
Definitions
- the present invention relates to a tire molding die and a tire manufacturing method.
- an annular tread molding part that molds the tread of a tire is used as a tire molding mold for vulcanizing and molding an unvulcanized green tire to produce a tire. It is known that the opening is divided into a plurality of segments aligned in parallel, and is configured to open and close by moving each segment in the radial direction (see, for example, Patent Documents 1 to 3).
- each segment faces radially outward while maintaining the attitude of the tire with respect to the tread. Therefore, the entire tread design surface forming the tread of the segment tends to peel off from the tread at the same time, and a large driving force is required to drive the segment at the initial stage of tire release.
- the present invention has been made in view of the above problems, and an object of the present invention is to provide a tire molding die and a tire manufacturing method capable of reducing the driving force required to drive the segments at the initial stage of releasing the tire from the mold. is to provide
- the tire molding die of the present invention comprises an annular tread molding portion divided into a plurality of segments arranged in a circumferential direction, and is a tire molding die for vulcanizing and molding an unvulcanized raw tire into a tire.
- a rotating shaft provided on one end side of the segment in the direction of the axis of the tread forming portion and perpendicular to the moving direction of the segment and the axis of the tread forming portion; a base member that rotatably supports the segment; and when the tread forming portion is opened, the other end side of the segment in the axial direction moves radially outward around the rotation shaft.
- an external force applying mechanism for applying an external force to rotate the segment in a direction to rotate the segment.
- the external force application mechanism may be configured to include a rotating spring member that applies a spring force as an external force to the segment.
- the tire molding die of the present invention is arranged radially outwardly of the segment, and has a holding position for holding the segment in a prescribed position, and a diameter of the segment about the rotation axis.
- the configuration may include an outer ring that is movable between a release position that permits pivoting in the outward direction.
- the tire molding die of the present invention comprises a guide rail that supports the base member movably in the radial direction of the tread molding portion; and a sliding spring member that biases the segment toward the segment, and the segment moves radially outward while rotating about the rotating shaft.
- the first segment rotates around the first rotation axis.
- the second segment may pivot about the second pivot axis.
- an unvulcanized green tire is vulcanized and molded using a tire molding die having an annular tread molding portion divided into a plurality of segments arranged in a circumferential direction.
- a tire manufacturing method for manufacturing a tire when the tread molding part is opened after vulcanization molding of the tire, an external force is applied to the segment by an external force applying mechanism, so that the axis of the tread molding part of the segment.
- the tire is separated from the tread forming portion while rotating the segment about a rotating shaft provided on one end side in the direction of the segment and perpendicular to each of the moving direction of the segment and the axis line of the tread forming portion It is characterized by molding.
- FIG. 2 is a cross-sectional view of the tread forming portion shown in FIG. 1 in a plan view
- FIG. 2 is a cross-sectional view in a front view showing an enlarged detailed structure of a main part of the tire molding die shown in FIG. 1
- FIG. 4 is a cross-sectional view in a front view showing an enlarged detailed structure of a main part of one segment shown in FIG. 3
- FIG. 4 is a cross-sectional view in plan view showing the state of the main parts of the tire molding die at the initial stage of releasing the tire from the mold.
- FIG. 6 is a cross-sectional view in plan view showing the state of the main parts of the tire molding die in a state where the tire has been further released from the mold from the state shown in FIG. 5 ;
- a tire molding die 1 according to an embodiment of the present invention shown in FIG. 1 vulcanizes a raw tire formed mainly of unvulcanized (before vulcanization) synthetic rubber into a predetermined shape. It is used to manufacture the tire 2 by molding.
- the tire 2 is made mainly of synthetic rubber, has a pair of sidewalls 2a and 2b and a tread 2c, and is a hollow tire formed in a shape having a space filled with gas such as air or nitrogen. is.
- the tire molding die 1 has a sidewall molding portion 10 and a tread molding portion 20 .
- the sidewall molding portion 10 includes, for example, an annular lower sidewall molding portion 11 fixed to the upper surface of the lower container 3 and an annular upper sidewall molding portion 12 fixed to the lower surface of the upper container 4. can be configured with
- the sidewall molding portion 10 has an annular tire 2 or green tire between the lower sidewall molding portion 11 and the upper sidewall molding portion 12, and the central axis thereof coincides with the central axis O of the sidewall molding portion 10. It can be placed (stored) in a coaxial posture.
- the lower sidewall molding portion 11 has an annular, upward-facing lower sidewall design surface 11a centered on the central axis O. 1), the outer surface of the sidewall 2a can be molded.
- the upper sidewall molding portion 12 has an annular downward upper sidewall design surface 12a centered on the central axis O. 1) can be shaped.
- the sidewall molding portion 10 is opened by moving the upper container 4 relative to the lower container 3 from the position shown in FIG. is released from the sidewall molded portion 10 . On the other hand, by moving the upper container 4 downward to the original position shown in FIG. 1, the sidewall forming section 10 is closed from the open state to a state in which the tire 2 or green tire can be formed.
- the configuration of the sidewall molding section 10 can be changed as appropriate, for example, the configuration in which the lower container 3 moves downward relative to the upper container 4 to open.
- the tread molded portion 20 has an annular shape coaxial with the sidewall molded portion 10 and is arranged adjacent to the outer side in the radial direction of the lower sidewall molded portion 11 and the upper sidewall molded portion 12 .
- the inner peripheral surface of the tread forming portion 20 facing radially inward serves as a tread design surface 20a for forming the outer peripheral surface of the tread 2c of the tire 2. As shown in FIG.
- the tread forming portion 20 is divided into a plurality of segments 21 arranged in the circumferential direction.
- Each segment 21 has an arc shape in a plan view, and is combined in the circumferential direction to form a tread molding portion 20 that forms an annular mold as a whole.
- the tread forming portion 20 is divided into nine segments 21 having the same length in the circumferential direction.
- the number of divisions of the tread forming portion 20 in the circumferential direction is preferably 7 to 13, but is not limited to this and can be changed as appropriate.
- each of the plurality of segments 21 forming the tread forming portion 20 has a holder 22 and a design surface dividing mold portion 23 .
- the holder 22 can be formed by cutting a block made of metal such as low carbon steel.
- the design surface dividing mold portion 23 is a portion that constitutes the tread design surface 20a that molds the tread 2c of the tire 2, and is arcuate in plan view, and the surface that faces radially inward extends along the circumference of the tread design surface 20a. It constitutes a part divided in the direction.
- the design surface dividing mold part 23 is arranged radially inside the corresponding holder 22 and is fixed to the holder 22 using a fixing member such as a bolt (not shown).
- the design surface division mold portion 23 may be configured such that the tread design surface 20a is provided with a plurality of protrusions 24 that project radially inward from the tread design surface 20a.
- the plurality of protrusions 24 form grooves, sipes, etc. that form a tread pattern on the tread 2c of the tire 2 during vulcanization molding.
- the plurality of protrusions 24 can be of various shapes or large (lengths) corresponding to the tread pattern, such as those extending in the tire width direction and those extending in the tire circumferential direction. Note that the tread design surface 20a may be configured without the protrusions 24.
- the design surface dividing mold part 23 is preferably formed by casting a metal material with high thermal conductivity such as an aluminum alloy.
- rib-shaped or blade-shaped protrusions 24 made of steel may be integrated with the design surface division mold portion 23 when the design surface division mold portion 23 is cast. can be done.
- each segment 21 is provided on one end side (lower end side in the case shown in FIG. 3) of the tread forming portion 20 in the axial direction of the tread forming portion 20.
- Each of the 20 axes is provided with a vertical pivot shaft 5 .
- the rotating shaft 5 is arranged at the lower end side portion of the holder 22 .
- an individual base member 6 corresponding to the segment 21 is arranged under each segment 21, an individual base member 6 corresponding to the segment 21 is arranged.
- the base member 6 supports the segment 21 so as to be rotatable around the rotation shaft 5 . That is, the segment 21 is rotatable around the rotation shaft 5 with respect to the base member 6 .
- the tread forming part 20 vulcanizes and molds the tire 2 with each segment 21 at a specified position, and then each segment 21 rotates radially outward from the specified position about the rotation shaft 5.
- the tread 2c can be opened so as to be released from the tread design surface 20a.
- the base member 6 is supported by the lower container 3 and the lower sidewall forming portion 11 and supported by the guide rails 25 extending along the radial direction of the segment 21 . It can move in the radial direction around the axis (central axis O).
- a slide spring member 26 is arranged between the base member 6 and the lower side wall forming portion 11, and each segment 21 is biased radially outward by the corresponding slide spring member 26. ing. When the base member 6 moves radially, the segments 21 supported by it also move radially together with the base member 6 .
- An external force applying mechanism 30 is provided for applying an external force to rotate the segment 21 in a direction of radially outward movement around 5 .
- the external force application mechanism 30 is configured to include a rotating spring member 31 that applies a spring force to the segment 21 as an external force.
- the external force application mechanism 30 includes a shaft 32 fixed on the upper surface of the base member 6 in a vertical posture extending vertically.
- the shaft body 32 is inserted through a hole portion 22a provided in the holder 22 constituting the segment 21, and a flange portion 33 provided at the upper end thereof is arranged in the hole portion 22a.
- the rotating spring member 31 is a compression coil spring, and is arranged in a compressed state between the flange portion 33 and the bottom wall of the hole portion 22a.
- an outer ring 7 is provided radially outwardly of each segment 21. are placed.
- the outer ring 7 is fixed to the upper container 4 via the upper side wall forming portion 12, and moves vertically relative to the segment 21 supported by the lower container 3 or the base member 6 together with the upper container 4. be able to.
- the prescribed position means that the tread design surface 20a provided on the design surface split mold portion 23 of the segment 21 is positioned relative to the tread design surface 20a provided on the design surface split mold portion 23 of the other segment 21. It is a position where it becomes a continuous posture along the circumferential direction.
- the outer ring 7 has a tapered surface 7a on the inner peripheral surface facing radially inward, the tapered surface 7a being inclined so that the outer diameter gradually decreases upward.
- each segment 21 has a tapered surface 21a on the outer peripheral surface facing radially outward, the tapered surface 21a being inclined such that the outer diameter gradually decreases upward.
- tapered surface 21 a is provided on the outer peripheral surface of holder 22 .
- the tire molding die 1 is provided with a bladder 8 which is arranged inside a raw tire and expands when pressurized steam is supplied.
- the tire molding die 1 also includes heaters (not shown) for heating the sidewall molding portion 10 and the tread molding portion 20 .
- the installation location of the heater can be set as appropriate.
- a green tire is placed inside the tire molding die 1 with the sidewall molding section 10 and the tread molding section 20 opened, and then the sidewall molding section 10 and the tread molding section 20 are closed. do.
- pressurized steam is supplied to the bladder 8 arranged inside the green tire to inflate the bladder 8, and both sidewalls of the green tire are formed on the lower side wall design surface 11a or the upper side of the side wall molding portion 10, respectively.
- the tread is pressed against the tread design surface 20a of the tread forming portion 20.
- the sidewall molding portion 10 and the tread molding portion 20 are heated by the heater, and the synthetic rubber constituting the raw tire is vulcanized by the heat, and the tire 2 is molded into a predetermined shape.
- the sidewall molding section 10 and the tread molding section 20 are opened, and the molded tire 2 is taken out.
- the outer ring 7 is moved upward from the holding position toward the release position with respect to each segment 21 in order to open the tread molding portion 20, as shown in FIG. , the segment 21 is allowed to rotate radially outward about the rotation shaft 5 , and the segment 21 is driven by the external force applied by the external force applying mechanism 30 to move from the specified position to the rotation shaft 5 . around the center in the radial direction (pan action).
- the external force imparting mechanism 30 exerts force on the segment 21.
- the tire 2 can be released from the tread forming portion 20 while rotating the segment 21 about the rotating shaft 5 provided at one end (lower end) thereof.
- the tread 2c of the tire 2 is gradually shifted from one end side (upper end side in FIG. 5) in the width direction of the tire 2 of the design surface dividing mold portion 23 to the other end side (lower end side in FIG. 5).
- the release resistance from the tread design surface 20a of the tread 2c of the tire 2 can be reduced, the occurrence of residual strain (permanent deformation) in the tire 2 after release can be suppressed, and the initial deformation of the tire 2 can be reduced. It can improve performance.
- the respective designed surface dividing mold portions 23 rotate around the rotation shaft 5, thereby forming projections 24 on the tread 2c of the tire 2.
- the undercut resistance it is possible to further reduce the driving force required to drive the segment 21 at the initial stage of releasing the tire 2 from the mold.
- the excessive increase in undercut resistance is suppressed, so that the tread 2c of the molded tire 2 is permanently deformed and the protrusions 24 are damaged. It is also possible to suppress problems such as slippage.
- the guide rails 25 that support the base member 6 so as to be movable in the radial direction of the tread molding portion 20 and the base member 6 radially outward of the tread molding portion 20 are provided.
- the outer ring 7 moves to the release position, as shown in FIG. While rotating spontaneously radially outward about the rotating shaft 5, it is biased by the slide spring member 26 to move radially outward along the guide rail 25 together with the base member 6.
- the segment 21 can be rotated around the rotation shaft 5 when the projection 24 provided on the tread design surface 20a has a high projection height, for example, when molding a large tire used for a construction vehicle or the like.
- the external force applying mechanism 30 is configured to include the turning spring member 31 that applies a spring force to the segment 21 as an external force. can be simplified, and the manufacturing cost of the tire 2 can be further reduced.
- the external force applying mechanism 30 is not limited to the configuration including the turning spring member 31 that applies spring force to the segment 21 as an external force, and may be configured to apply an external force to the segment 21 by a driving source such as an air cylinder. can also
- the holding position which is arranged radially outside of the segment 21 and holds the segment 21 in a prescribed position
- the configuration includes the outer ring 7 that is movable between the released position and the release position that allows the rotation to the outside, the opening and closing mechanism of the segment 21 can be simplified, and the manufacturing cost of the tire 2 can be further reduced.
- one segment (first segment) 21 among the plurality of segments 21 rotates when the tread molding portion 20 is opened after the tire 2 is vulcanized and molded.
- the other segment (second segment) 21 among the plurality of segments 21 rotates around the rotating shaft (second rotating shaft). It can be configured to rotate radially outward around the drive shaft 5 . That is, the plurality of segments 21 can be configured to rotate sequentially with a time difference between each segment 21 . In this case, after one segment 21 rotates radially outward about the rotation shaft 5 , the segment 21 adjacent to the segment 21 rotates radially outward about the rotation shaft 5 .
- the segment 21 adjacent to the segment 21 rotates radially outward about the rotation axis 5 , so that the segments 21 rotate about the rotation axis 5 in order in the circumferential direction. It can be configured to rotate radially outward.
- the tread 2c is gradually released from the tread design surface 20c from a part thereof in the circumferential direction, so that the tire can be released with a smaller driving force. 2 can be released from the tread design surface 20a.
- each segment 21 is provided with a holder 22, a design surface dividing mold portion 23 is fixed to the holder 22, and the holder 22 is rotatably supported on the base member 6 by the rotation shaft 5.
- the design surface dividing mold part 23 may be supported by the base member 6 by the rotating shaft 5 without providing the holder 22 .
- the tread forming portion 20 may be configured such that the base member 6 cannot be moved in the radial direction, and can be opened and closed only by rotating the segments 21 about the rotating shafts 5 .
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
Abstract
Description
Claims (6)
- 円周方向に並ぶ複数のセグメントに分割された円環状のトレッド成形部を備え、未加硫の生タイヤをタイヤに加硫成形するタイヤ成形用金型であって、
前記セグメントの前記トレッド成形部の軸線の方向の一端側に設けられ、前記セグメントの移動方向及び前記トレッド成形部の軸線のそれぞれに垂直な回動軸と、
前記回動軸を中心として回動自在に前記セグメントを支持するベース部材と、
前記トレッド成形部が開かれるときに、前記セグメントに、前記セグメントの前記軸線の方向の他端側が前記回動軸を中心として径方向外側に移動する方向に前記セグメントを回動させる外力を付与する外力付与機構と、を有することを特徴とするタイヤ成形用金型。 - 前記外力付与機構が、前記セグメントに外力としてバネ力を付与する回動用バネ部材を備えている、請求項1に記載のタイヤ成形用金型。
- 前記セグメントの径方向外側に配置され、前記セグメントを規定位置に保持する保持位置と、前記セグメントの前記回動軸を中心とした径方向外側への回動を許容する解放位置との間で移動自在のアウターリングを備えている、請求項2に記載のタイヤ成形用金型。
- 前記ベース部材を前記トレッド成形部の径方向に移動自在に支持するガイドレールと、
前記ベース部材を前記トレッド成形部の径方向外側に向けて付勢するスライド用バネ部材と、を有し、
前記セグメントが、前記回動軸を中心として回動しつつ径方向外側に移動するように構成されている、請求項1~3の何れか1項に記載のタイヤ成形用金型。 - 前記タイヤの加硫成形後に前記トレッド成形部が開かれるときに、第1の前記セグメントが大1の前記回動軸を中心として回動した後、第2の前記セグメントが第2の前記回動軸を中心として回動するように構成されている、請求項1~4の何れか1項に記載のタイヤ成形用金型。
- 円周方向に並ぶ複数のセグメントに分割された円環状のトレッド成形部を備えたタイヤ成形用金型を用いて、未加硫の生タイヤを加硫成形してタイヤを製造するタイヤ製造方法であって、
前記タイヤの加硫成形後に前記トレッド成形部を開くときに、外力付与機構により前記セグメントに外力を付与することで、前記セグメントの前記トレッド成形部の軸線の方向の一端側に設けられた、前記セグメントの移動方向及び前記トレッド成形部の軸線のそれぞれに垂直な回動軸を中心として前記セグメントを回動させながら、前記タイヤを前記トレッド成形部から離型させることを特徴とするタイヤ製造方法。
Priority Applications (3)
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US18/563,968 US20240246306A1 (en) | 2021-06-22 | 2021-11-24 | Mold for forming a tire and tire production method |
EP21947222.2A EP4360847A1 (en) | 2021-06-22 | 2021-11-24 | Tire molding mold and tire manufacturing method |
CN202180099332.8A CN117480042A (zh) | 2021-06-22 | 2021-11-24 | 用于形成轮胎的模具及轮胎生产方法 |
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JP2021103650A JP2023002406A (ja) | 2021-06-22 | 2021-06-22 | タイヤ成形用金型及びタイヤ製造方法 |
JP2021-103650 | 2021-06-22 |
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EP (1) | EP4360847A1 (ja) |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN116476289A (zh) * | 2023-04-25 | 2023-07-25 | 荣成荣鹰橡胶制品有限公司 | 一种自动化实心轮胎生产装置 |
CN116533425A (zh) * | 2023-05-16 | 2023-08-04 | 荣成荣鹰橡胶制品有限公司 | 一种用于实心轮胎成型的生产设备 |
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JPS52103479A (en) * | 1976-02-24 | 1977-08-30 | Pneumatiques Caoutchouc Mfg | Sector type metal mold |
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JP2018202787A (ja) * | 2017-06-07 | 2018-12-27 | 株式会社ブリヂストン | タイヤ加硫装置 |
WO2020170347A1 (ja) * | 2019-02-20 | 2020-08-27 | 三菱重工機械システム株式会社 | 金型コンテナ装置及びタイヤ加硫機 |
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- 2021-11-24 EP EP21947222.2A patent/EP4360847A1/en active Pending
- 2021-11-24 WO PCT/JP2021/043052 patent/WO2022269943A1/ja active Application Filing
- 2021-11-24 CN CN202180099332.8A patent/CN117480042A/zh active Pending
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JPS52103479A (en) * | 1976-02-24 | 1977-08-30 | Pneumatiques Caoutchouc Mfg | Sector type metal mold |
JPH0528614U (ja) * | 1991-07-10 | 1993-04-16 | ザ・グツドイヤー・タイヤ・アンド・ラバー・カンパニー | タイヤ用モールド |
JP2018202787A (ja) * | 2017-06-07 | 2018-12-27 | 株式会社ブリヂストン | タイヤ加硫装置 |
WO2020170347A1 (ja) * | 2019-02-20 | 2020-08-27 | 三菱重工機械システム株式会社 | 金型コンテナ装置及びタイヤ加硫機 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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CN116476289A (zh) * | 2023-04-25 | 2023-07-25 | 荣成荣鹰橡胶制品有限公司 | 一种自动化实心轮胎生产装置 |
CN116476289B (zh) * | 2023-04-25 | 2023-11-07 | 荣成荣鹰橡胶制品有限公司 | 一种自动化实心轮胎生产装置 |
CN116533425A (zh) * | 2023-05-16 | 2023-08-04 | 荣成荣鹰橡胶制品有限公司 | 一种用于实心轮胎成型的生产设备 |
CN116533425B (zh) * | 2023-05-16 | 2023-11-07 | 荣成荣鹰橡胶制品有限公司 | 一种用于实心轮胎成型的生产设备 |
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JP2023002406A (ja) | 2023-01-10 |
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