WO2014091911A1 - Moule à pneumatiques - Google Patents

Moule à pneumatiques Download PDF

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Publication number
WO2014091911A1
WO2014091911A1 PCT/JP2013/081623 JP2013081623W WO2014091911A1 WO 2014091911 A1 WO2014091911 A1 WO 2014091911A1 JP 2013081623 W JP2013081623 W JP 2013081623W WO 2014091911 A1 WO2014091911 A1 WO 2014091911A1
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WO
WIPO (PCT)
Prior art keywords
tire
mold
groove
cavity surface
segment
Prior art date
Application number
PCT/JP2013/081623
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English (en)
Japanese (ja)
Inventor
耕治 和泉
Original Assignee
住友ゴム工業株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 住友ゴム工業株式会社 filed Critical 住友ゴム工業株式会社
Publication of WO2014091911A1 publication Critical patent/WO2014091911A1/fr

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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
    • B29C33/005—Moulds or cores; Details thereof or accessories therefor characterised by the location of the parting line of the mould parts
    • 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
    • B29C33/42—Moulds or cores; Details thereof or accessories therefor characterised by the shape of the moulding surface, e.g. ribs or grooves
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
    • B29C43/021—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles characterised by the shape of the surface
    • B29C2043/022—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles characterised by the shape of the surface having locally depressed lines, e.g. hinges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/10—Moulds or cores; Details thereof or accessories therefor with incorporated venting means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2030/00—Pneumatic or solid tyres or parts thereof
    • B29L2030/007—Sidewalls

Definitions

  • the present invention relates to a mold used in a tire vulcanization process.
  • a vulcanizer equipped with a mold is used.
  • a split mold and a two-piece mold can be used for this vulcanization process.
  • the split mold usually includes a plurality of segments and a pair of upper and lower side plates.
  • the planar view shape of the segment is substantially arcuate.
  • a ring-shaped cavity surface can be formed by connecting a plurality of segments in a ring shape.
  • the number of segments is usually 3 or more and 20 or less.
  • the side plate has a substantially ring shape.
  • a preformed raw cover (unvulcanized tire) is put into a mold.
  • a pair of upper and lower side plates approach and close, and a plurality of segments approach and close.
  • a part of the outer peripheral surface of the side plate abuts a part of the inner peripheral surface of the segment.
  • the raw cover is accommodated in a cavity surrounded by a mold and a bladder.
  • the raw cover is heated while being pressurized.
  • the rubber composition of the raw cover flows in the cavity by pressurization and heating.
  • the rubber causes a crosslinking reaction by heating, and a tire is obtained.
  • a part of the rubber on the surface of the raw cover may be sandwiched between the contact surfaces of the segment and the side plate.
  • a burr is formed on the surface of the tire after vulcanization. Burr detracts from the appearance of the tire. The burr may impair the performance of the tire. Due to the removal of burrs, tire production costs may increase.
  • Japanese Patent Application Laid-Open No. 2007-210248 proposes a tire vulcanization mold that can suppress the occurrence of the above-described burrs.
  • a recess (notch) is formed at the intersection of the contact surface between the segment and the side plate (side mold) and the inner surface of the cavity.
  • the abutment surface appears as a line on the inner surface of the cavity. This line is also called a contact line.
  • the recess is formed along the contact line.
  • the depth of this recess is 2 mm or more and 5 mm or less.
  • the opposing inner wall surfaces of the recesses on both sides of the contact line are curved in a convex shape with a radius of curvature of 5 mm to 30 mm. That is, the recess is large.
  • An object of the present invention is to provide an automotive mold, to provide a method for producing a pneumatic tire using the tire mold, and to provide a pneumatic tire molded by the mold.
  • the tire mold according to the present invention is: A plurality of segments having a cavity surface for molding, arranged in a ring shape; A pair of upper and lower side plates having a cavity surface for molding, arranged on the radially inner side of each segment, The segment and the side plate have contact surfaces that face each other and contact each other, This contact surface intersects the cavity surface, Grooves are formed along the intersecting line with the abutment surface in the abutting segments and the cavity surfaces of the side plates, and ridges along the groove are formed on both sides of the groove.
  • the depth of the groove from the cavity surface is 0.5 mm or more and 1.0 mm or less.
  • the groove has a width of 0.3 mm to 1.0 mm.
  • the height of the ridge from the cavity surface is 0.5 mm or more and 1.0 mm or less.
  • the width of the ridge is 2 mm or more and 8 mm or less.
  • the height from the radially outer end of the cavity surface to the contact surface of the segment and the side plate that are in contact with each other is a ratio of 20% to 25% with respect to the section height.
  • the section height is a height from the radially outer end to the inner end of the cavity surface.
  • a method for manufacturing a pneumatic tire according to the present invention is a method for manufacturing a pneumatic tire using a tire mold, The method for producing a pneumatic tire, wherein the tire mold is any one of the tire molds described above.
  • the pneumatic tire according to the present invention is a pneumatic tire vulcanized and molded using a tire mold, A pneumatic tire, wherein the tire mold is any one of the tire molds described above.
  • the present invention at the time of vulcanization molding of a tire, it is possible to suppress the biting of the rubber of the raw cover at the contact surface between the segment and the side plate and the residual air inside the tire after vulcanization.
  • FIG. 1 is a plan view showing a part of a tire mold according to an embodiment of the present invention.
  • FIG. 2 is a sectional view taken along line II-II in FIG.
  • FIG. 3 is an enlarged view of part III in FIG.
  • FIG. 4 is a sectional view showing a pneumatic tire manufactured using the mold of FIG. 1.
  • FIG. 5 is an enlarged view of a portion corresponding to the portion shown in FIG. 3 in the pneumatic tire of FIG. 4.
  • FIG. 1 is a plan view showing a part of a tire mold (hereinafter simply referred to as a mold) 2 according to an embodiment of the present invention.
  • This mold 2 is provided in a tire vulcanizer.
  • FIG. 2 is an enlarged sectional view taken along line II-II in FIG. In FIG. 2, the vertical direction is the axial direction, and the horizontal direction is the radial direction.
  • the mold 2 includes a plurality of segments 4, a pair of upper and lower side plates 6, and a pair of upper and lower bead rings 8.
  • the side plate 6 is disposed on the radially inner side of the segment 4.
  • the shape of the segment 4 in plan view is substantially an arc shape.
  • a plurality of segments 4 are connected in a ring shape.
  • the number of segments 4 is usually 3 or more and 20 or less.
  • the side plate 6 and the bead ring 8 are substantially ring-shaped.
  • This mold 2 is a so-called “split mold”.
  • the raw cover R is obtained by preforming.
  • the raw cover R is put into the interior (cavity) of the mold 2 in a state where the mold 2 is open and the bladder 10 is contracted. At this stage, the rubber composition of the raw cover R is in an uncrosslinked state.
  • ⁇ Mold 2 is closed. That is, the pair of upper and lower side plates 6 are close to each other, and the plurality of segments 4 are close to each other and close. At this time, the segment 4 and the side plate 6 abut against each other in the radial direction.
  • the raw cover R is accommodated in a cavity surrounded by the inner surface (cavity surface) 12 of the mold 2 and the bladder R.
  • the bladder 10 expands.
  • the raw cover R is pressed against the cavity surface 12 of the mold 2 by the bladder 10 and pressurized.
  • the raw cover R in this state is shown in FIG.
  • the raw cover R is heated.
  • the rubber composition flows by pressurization and heating.
  • the rubber causes a crosslinking reaction by heating, and a tire is obtained.
  • a tire tread portion is formed in the range of the segment 4
  • a tire side portion is formed in the range of the side plate 6, and a bead portion is formed in the range of the bead ring 8.
  • the process in which the raw cover R is pressurized and heated is referred to as a vulcanization process.
  • the contact surface 14 of the segment 4 and the contact surface 16 of the side plate 6 that are in contact with each other intersect the cavity surface 12.
  • the contact surfaces 14 and 16 have a cylindrical shape with the central axis of the mold as the central axis.
  • the contact surfaces 14 and 16 that are in contact with each other appear linearly. This line is called a crossing line (contact line) 18.
  • contact line Along the intersection line (contact line) 18, measures are taken to prevent the rubber cover R from getting caught in the rubber. It is as follows.
  • FIG. 3 is an enlarged view of part III in FIG. FIG. 3 shows the vicinity of the intersection of the abutting surface 14 of the segment 4, the abutting surface 16 of the side plate 6, and the cavity surface 12 in the mold 2 of FIG. 2.
  • the same reference numeral 18 as that of the intersection line 18 is attached to this intersection.
  • a recess (hereinafter also referred to as a groove) 20 is formed along the intersecting line 18.
  • the groove 20 includes a notch 24 formed at an intersection 18 between the contact surface 14 of the segment 4 and the segment side cavity surface 12, and the contact surface 16 of the side plate 6 and the side plate side cavity surface 12. It is comprised from the notch part 26 formed in the cross
  • the groove 20 extends in a circular shape centered on the central axis of the mold 2 in plan view.
  • the groove 20 has a trapezoidal cross section.
  • the cross-sectional shape of the groove 20 is not limited to a trapezoid, and may be a rectangle, a semicircle, a short axis, a semi-oval cut along the long axis, or the like.
  • the depth Dm of the groove 20 is preferably 0.5 mm or greater and 1.0 mm or less.
  • the depth Dm is a dimension from the intersection 18 between the contact surfaces 14 and 16 and the cavity surface 12 to the bottom of the groove 20.
  • the depth direction of the groove 20 is a direction perpendicular to the tangent TL of the virtual cavity surface 12 at the intersection 18 as shown in FIG.
  • the virtual cavity surface is a cavity surface when it is assumed that the groove 20 and ridges 28 and 30 described later do not exist at the design stage.
  • the depth direction of the groove 20 is not limited to this direction.
  • the groove 20 may be formed in a direction along the contact surfaces 14 and 16 from the intersecting portion 18. In this case, the depth Dm of the groove 20 refers to the dimension from the intersection 18 to the bottom of the groove 20 along the contact surfaces 14 and 16.
  • the depth Dm of the groove 20 When the depth Dm of the groove 20 is less than 0.5 mm, the distance from the exposed position of the contact surfaces 14 and 16 (the bottom of the groove 20) to the surface of the raw cover R put into the mold 2 is short. It will be a thing. As a result, there is a possibility that the rubber bites between the contact surfaces 14 and 16. On the other hand, when the depth Dm of the groove 20 exceeds 1.0 mm, the amount of rubber protruding from the surface of the raw cover R increases. As a result, air may remain in the vicinity of the rubber protrusion in the vulcanized tire.
  • the width Wmg of the groove 20 is preferably 0.3 mm or greater and 1.0 mm or less.
  • the width Wmg refers to the width at the bottom of the groove 20.
  • the width Wmg dimension corresponds to the diameter of the arc.
  • the width Wmg of the groove 20 is less than 0.3 mm, the rubber flow at the time of molding becomes insufficient, and it may be difficult to beautifully form the protrusions 56 on the surface of the tire 40 described later.
  • the width Wmg of the groove 20 exceeds 1.0 mm, the amount of rubber protruding from the surface of the raw cover R increases. As a result, air may remain in the vicinity of the rubber protrusion in the vulcanized tire.
  • ridges 28 and 30 are formed on both sides of the groove 20 along the groove 20, respectively.
  • the segment-side ridge 28 is adjacent to the segment side of the groove 20
  • the side plate-side ridge 30 is adjacent to the side plate side of the groove 20.
  • the groove side edge of each ridge 28 and 30 and the ridge side edge of the groove 20 may be separated within a range of 1 mm or less.
  • each of the ridges 28 and 30 has a trapezoidal cross section.
  • the cross-sectional shape of the ridges 28 and 30 is not limited to a trapezoid, and may be a rectangle, a semicircle, a semioval cut along the long axis, or the like.
  • the height Hm of the ridges 28 and 30 is preferably 0.5 mm or more and 1.0 mm or less. This height Hm is a dimension from the tangent TL of the virtual cavity surface described above to the upper ends of the ridges 28 and 30 in the direction perpendicular to the tangent TL.
  • the height Hm of the ridges 28 and 30 is less than 0.5 mm, the distance from the exposed position of the contact surfaces 14 and 16 (the bottom of the groove 20) to the surface of the raw cover R put into the mold 2 becomes short. As a result, there is a possibility that the rubber bites between the contact surfaces 14 and 16.
  • the height Hm of the ridges 28 and 30 exceeds 1.0 mm, the amount of rubber protruding from the surface of the raw cover R increases. As a result, air may remain in the vicinity of the rubber protrusion in the vulcanized tire.
  • the width Wmc of the ridges 28 and 30 is preferably 2 mm or more and 8 mm or less. This width Wmc refers to the width at the top of each ridge 28, 30.
  • the width Wmc dimension is the width of the lower end of the ridges 28 and 30 which is the maximum width.
  • the segment-side ridges 28 and the side plate-side ridges 30 may have different heights Hm, and may have different widths W.
  • each ridge 28, 30 When the width Wmc of each ridge 28, 30 is less than 2 mm, the ridge 28, 30 enters the raw cover R like a knife. As a result, the effect that the ridges 28 and 30 press the rubber decreases, and air may remain. On the other hand, when the width Wmc of each protrusion 28, 30 exceeds 8 mm, the cavity surface 12 itself is in a state similar to that moved to the inside of the cavity. As a result, the depth of the groove 20 described above becomes relatively large, and air may remain in the vicinity of the rubber protrusion in the vulcanized tire.
  • FIG. 4 shows an example of a pneumatic tire 40 vulcanized and molded using the mold 2 described above.
  • the tire 40 is obtained by vulcanizing and molding the raw cover R in FIG.
  • the left-right direction is the radial direction
  • the up-down direction is the axial direction
  • the direction perpendicular to the paper surface is the circumferential direction.
  • a one-dot chain line CL in the drawing represents the equator plane of the tire 2.
  • the tire 40 includes a tread 42, a sidewall 44, a bead 46, a carcass 48, and a belt 50.
  • the tire 40 is a tubeless type.
  • the tire 40 can be attached to a passenger car.
  • the bead 46 includes a core 52 and an apex 54 that extends radially outward from the core 52.
  • FIG. 5 shows a part of the tire 40.
  • FIG. 5 is an enlarged view of a portion V in FIG.
  • the part of the tire 40 is a part of the tire 40 corresponding to the groove 20 and the ridges 28 and 30 of the mold 2 shown in FIG. That is, the ridge 56 on the surface of the tire 40 formed by the groove 20 and the two grooves 58 and 60 on the surface of the tire 40 formed by the ridges 28 and 30 are shown.
  • the left side of the figure is the tread side of the tire 40, and the right side is the bead side of the tire 40.
  • the height Ht and the width Wtc of the ridge 56 of the tire 40 are substantially equal to the depth Dm and the width Wm of the groove 20 of the mold 2.
  • the width Wt of the ridge 56 of the tire 40 is the width of the top of the ridge 56.
  • the depth Dt and the width Wtg of the groove 58 near the tread of the tire 40 are substantially equal to the height Hm and the width Wmc of the ridge 28 on the segment 4 side of the mold 2.
  • the depth Dt and the width Wtg of the groove 60 near the bead of the tire 40 are substantially equal to the height Hm and the width Wmc of the ridges 30 on the side plate 6 side of the mold 2.
  • the height Ht of the ridges 56 of the tire 40 is about 0.5 mm or more and about 1.0 mm or less, and the width Wtc of the ridges 56 is about 0.3 mm or more and about 1.0 mm or less.
  • the depth Dt of the grooves 58 and 60 of the tire 40 is about 0.5 mm or more and about 1.0 mm or less, and the width Wtg of the grooves 58 and 60 is about 2 mm or more and about 8 mm or less.
  • the minute ridges 56 and the grooves 58 and 60 do not impair the appearance of the tire 40 and do not affect the performance of the tire.
  • the radial height Hb from the radially outer end of the cavity surface 12 of both abutting surfaces 14, 16 shown in FIG. 2 is 20% of the section height Hs in the figure.
  • the ratio is preferably 25% or less.
  • the section height Hs is the height of the cavity corresponding to the radial height of the raw cover R (the dimension from the tread surface to the lower end of the bead portion).
  • the section height Hs is a dimension from the radially outer end of the cavity surface 12 to the radially inner end of the cavity surface of the bead ring 8.
  • the mold 2 having the grooves 20 and the ridges 28 and 30 described above can be applied to the manufacture of various tires.
  • the mold 2 is suitable for manufacturing a radial tire for a passenger car having a shape in which rubber is relatively easy to bite during vulcanization.
  • Example 1 As Example 1, a pneumatic tire was manufactured using a vulcanizing apparatus including the tire mold 2 described with reference to FIGS. 1 to 3.
  • the tire size is 195 / 65R15.
  • the number of segments 4 of the mold 2 is nine.
  • the ratio of the height Hb of the contact surfaces 14 and 16 of the mold 2 to the section height Hs is 23%.
  • the depth Dm of the groove 20, the width Wmg of the groove 20, the height Hm of the ridges 28 and 30, and the width Wmc of the ridges 28 and 30 of the mold 2 are as described in Table 1, respectively. .
  • the segment-side ridges 28 and the side plate-side ridges 30 have the same dimensions both in height Hm and width Wmc.
  • Example 2-17 pneumatic tires were manufactured in the same manner as in Example 1 above.
  • the depth Dm of the groove 20, the width Wmg of the groove 20, the height Hm of the ridges 28 and 30, and the width Wmc of the ridges 28 and 30 of the mold 2 are as described in Tables 1 to 3, respectively. It is.
  • Other mold specifications, vulcanization molding conditions, and tire specifications are the same as those in the first embodiment.
  • Comparative Example 1 As Comparative Example 1, a pneumatic tire was manufactured using a vulcanizing apparatus including the conventional mold described in [Background Art]. In this conventional mold, a recess (notch) is formed along the intersection between the contact surface between the segment and the side plate (side mold) and the inner surface of the cavity. The depth of this notch is 3 mm in the direction perpendicular to the intersection. Both the convex curvature radius on the segment side and the convex curvature radius on the side mold side of this notch are 10 mm. In the mold of Comparative Example 1, the ridges 28 and 30 included in the molds of Examples 1 to 17 are not formed. Other mold specifications, vulcanization molding conditions, and tire specifications are the same as those in the first embodiment.
  • Another test in the mold performance evaluation test is to check whether air remains in the vicinity of the ridge 56 in the tire.
  • the confirmation of the residual air is performed by observation using shearography.
  • Tables 1 to 3 show the evaluation results of the performance of the molds of Examples 1 to 17 and Comparative Example 1.
  • the mark A is for those where no burr is found
  • the mark B is for those where the burr size is 2 mm or less
  • the burr size is over 2 mm. Is indicated by a C mark.
  • the mark “A” indicates that no bubble was found
  • the mark “B” indicates a bubble whose diameter is 2 mm or less
  • the mark “C” indicates a bubble whose diameter exceeds 2 mm. It is indicated by a sign. From these evaluation results, the superiority of the present invention is clear.
  • the mold according to the present invention can be applied to the manufacture of various tires.

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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

L'invention concerne un moule qui permet de réduire à un minimum le coinçage du caoutchouc et l'air résiduel à l'intérieur d'un pneumatique. Le moule comporte : une pluralité de segments (4) ayant une surface d'empreinte (12), lesdits segments étant disposés en forme d'anneau ; et deux plaques latérales verticales (6) portant la surface d'empreinte (12), lesdites plaques latérales étant disposées sur l'intérieur de chaque segment (4) dans la direction radiale. Les segments (4) et les plaques latérales (6) ayant des surfaces de contact (14, 16) qui se font mutuellement face de manière à être en contact. Les surfaces de contact (14, 16) coupent la surface d'empreinte (12). Dans la surface d'empreinte (12) des segments (4) et celle des plaques latérales (6) qui sont en contact, une rainure (20) est formée le long d'une ligne d'intersection (18), qui coupe les surfaces de contact (14, 16), et des nervures (28, 30) sont formées le long de la rainure (20), sur les deux côtés de la rainure (20).
PCT/JP2013/081623 2012-12-10 2013-11-25 Moule à pneumatiques WO2014091911A1 (fr)

Applications Claiming Priority (2)

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JP2012-269174 2012-12-10
JP2012269174A JP5735950B2 (ja) 2012-12-10 2012-12-10 タイヤ用モールド

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3798025A1 (fr) * 2019-09-30 2021-03-31 Sumitomo Rubber Industries, Ltd. Pneumatique

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6809894B2 (ja) 2016-12-16 2021-01-06 Ｔｏｙｏ Ｔｉｒｅ株式会社 タイヤ加硫金型および空気入りタイヤ
JP6809893B2 (ja) * 2016-12-16 2021-01-06 Ｔｏｙｏ Ｔｉｒｅ株式会社 タイヤ加硫金型および空気入りタイヤ
JP6932578B2 (ja) * 2017-08-01 2021-09-08 Ｔｏｙｏ Ｔｉｒｅ株式会社 タイヤ加硫金型、空気入りタイヤの製造方法、及び空気入りタイヤ
JP6914802B2 (ja) * 2017-10-12 2021-08-04 Ｔｏｙｏ Ｔｉｒｅ株式会社 タイヤモールド
JP6962126B2 (ja) * 2017-10-18 2021-11-05 住友ゴム工業株式会社 タイヤ

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Publication number Priority date Publication date Assignee Title
JPH07164449A (ja) * 1993-12-14 1995-06-27 Ohtsu Tire & Rubber Co Ltd :The タイヤの加硫用金型
JPH08118362A (ja) * 1994-10-27 1996-05-14 Bridgestone Corp 空気入りタイヤ用モールド
JPH08216620A (ja) * 1995-02-13 1996-08-27 Sumitomo Rubber Ind Ltd 空気入りタイヤ
JPH1076527A (ja) * 1996-09-05 1998-03-24 Bridgestone Corp タイヤ加硫用金型および該タイヤ加硫用金型により製造されたタイヤ
JP2008213773A (ja) * 2007-03-07 2008-09-18 Bridgestone Corp 空気入りタイヤ、及び、それを製造する加硫成形装置
JP2011037190A (ja) * 2009-08-17 2011-02-24 Sumitomo Rubber Ind Ltd タイヤ用モールド
JP2013039793A (ja) * 2011-08-19 2013-02-28 Bridgestone Corp タイヤ用加硫モールド及びタイヤの製造方法

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07164449A (ja) * 1993-12-14 1995-06-27 Ohtsu Tire & Rubber Co Ltd :The タイヤの加硫用金型
JPH08118362A (ja) * 1994-10-27 1996-05-14 Bridgestone Corp 空気入りタイヤ用モールド
JPH08216620A (ja) * 1995-02-13 1996-08-27 Sumitomo Rubber Ind Ltd 空気入りタイヤ
JPH1076527A (ja) * 1996-09-05 1998-03-24 Bridgestone Corp タイヤ加硫用金型および該タイヤ加硫用金型により製造されたタイヤ
JP2008213773A (ja) * 2007-03-07 2008-09-18 Bridgestone Corp 空気入りタイヤ、及び、それを製造する加硫成形装置
JP2011037190A (ja) * 2009-08-17 2011-02-24 Sumitomo Rubber Ind Ltd タイヤ用モールド
JP2013039793A (ja) * 2011-08-19 2013-02-28 Bridgestone Corp タイヤ用加硫モールド及びタイヤの製造方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3798025A1 (fr) * 2019-09-30 2021-03-31 Sumitomo Rubber Industries, Ltd. Pneumatique

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JP5735950B2 (ja) 2015-06-17

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