WO2022195960A1 - タイヤ - Google Patents
タイヤ Download PDFInfo
- Publication number
- WO2022195960A1 WO2022195960A1 PCT/JP2021/042850 JP2021042850W WO2022195960A1 WO 2022195960 A1 WO2022195960 A1 WO 2022195960A1 JP 2021042850 W JP2021042850 W JP 2021042850W WO 2022195960 A1 WO2022195960 A1 WO 2022195960A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pattern
- tire
- area
- region
- pattern area
- Prior art date
Links
- 230000002238 attenuated effect Effects 0.000 description 3
- 238000005034 decoration Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 241000756122 Aristida purpurascens Species 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C13/00—Tyre sidewalls; Protecting, decorating, marking, or the like, thereof
- B60C13/001—Decorating, marking or the like
Definitions
- This disclosure relates to tires.
- the smooth surface of the side surface of the tire is decorated with minute unevenness (for example, see Japanese Patent Application Laid-Open No. 2019-099094).
- An object of the present disclosure is to provide a tire that can expand the range of expression of decorative parts.
- a tire according to a first aspect includes a plurality of pattern large regions arranged along the tire circumferential direction of the tire outer surface, each formed of unevenness, and partitioned by a smooth surface, wherein the pattern large region comprises a first It comprises a pattern area and a second pattern area which is arranged adjacent to the first pattern area and has a higher brightness than the first pattern area.
- the tire according to the first aspect includes a first pattern region and a second pattern region that is arranged adjacent to the first pattern region and has a higher brightness than the first pattern region, each formed by unevenness.
- the tire outer surface is decorated by providing a plurality of pattern large areas partitioned by a smooth surface on the tire outer surface, and the portion provided with the pattern large areas, in other words, the decorative portion decorated on the tire outer surface. You can expand your range of expression.
- a tire according to a second aspect is the tire according to the first aspect, in which a plurality of the large pattern regions are arranged in the tire radial direction on the tire side portion.
- the width of the portion of the tire side where the large pattern region is provided in other words, the width of the decorative portion of the tire side can be expanded.
- a plurality of large pattern regions are arranged in the tire radial direction, it is possible to expand the range of expression of the decorative portion compared to the case where a plurality of pattern large regions are not arranged in the tire radial direction.
- a tire according to a third aspect is the tire according to the first aspect or the second aspect, wherein at least one of the first pattern area and the second pattern area is plural in one of the large pattern areas. is provided.
- the one pattern large area includes the first pattern area.
- the range of expression of the decorative portion can be expanded.
- FIG. 2 is a plan view showing decorative portions formed on the tire side portion of the tire according to the first embodiment; 4 is an enlarged plan view showing the decorative portion; FIG. 4 is an enlarged plan view showing part of the first pattern area; FIG. FIG. 11 is an enlarged plan view showing part of the second pattern area; Fig. 10 is a cross-sectional view showing a first asterisk projection; FIG. 8 is a plan view showing decorative portions formed on the tire side portion of the tire according to the second embodiment; FIG. 8 is an enlarged plan view showing a large pattern region of a tire according to a second embodiment; FIG. 11 is an enlarged plan view showing a pattern large area according to another embodiment;
- FIG. 10 A tire 10 according to a first embodiment of the present disclosure will be described with reference to FIGS. 1 to 4.
- FIG. Arrow C shown in the drawing indicates the tire circumferential direction
- arrow R indicates the tire radial direction.
- a tire side portion 12 which is an example of the outer surface of the tire 10, is provided with a decorative portion 14 extending in the tire circumferential direction (arrow C direction).
- the decorative portion 14 has an arc shape when viewed from the axial direction of the tire 10, and is arranged at an arbitrary position in the tire circumferential direction.
- the tire side portion 12 other than the decorative portion 14 has a smooth surface like a normal tire.
- the portion of the tire side portion 12 that is formed as a smooth surface is appropriately referred to as a base surface 16 .
- the decorative portion 14 includes a plurality of large pattern areas 18.
- a plurality of large pattern regions 18 are arranged in the tire radial direction (arrow R direction) and are arranged in a plurality in the tire circumferential direction (arrow C direction).
- the large pattern regions 18 of the present embodiment have a substantially arrow feather shape in a plan view of the tire side portion 12, and are arranged opposite to each other adjacent to each other in the tire radial direction.
- a gap S with a smooth surface is provided so as to be connected to the base surface 16 .
- the large pattern area 18 is defined by the smooth surface.
- the large pattern area 18 includes a first pattern area 20 and a second pattern area 22 adjacent to the first pattern area 20 and having a higher brightness than the first pattern area 20 .
- the first pattern area 20 is composed of areas 20a, 20b, 20c, 20d, 20e, etc., which are different in size and shape.
- the second pattern area 22 is composed of areas 22a, 22b, 22c, 22d, 22e, etc., which are different in size and shape.
- the regions 20a, 20b, 20c, 20d, and 20e of the first pattern region 20 are symmetrical with the regions 22a, 22b, 22c, 22d, and 22e of the second pattern region 22. It has a symmetrical shape across the axis CL.
- the first pattern area 20 has a lower brightness than the base surface 16 and appears black compared to the base surface 16 .
- the second pattern area 22 has a higher brightness than the first pattern area 20 and a lower brightness than the base surface 16 . That is, the brightness decreases in the order of the base surface 16, the second pattern region 22, and the first pattern region 20. Compared to the base surface 16, the second pattern region 22 appears black, and the first pattern region 20 appears black. It looks blacker than the second pattern region 22, and the first pattern region 20 looks the blackest.
- the surface of the tire side portion 12 is formed to have the first shape.
- a patterned area 20 and a second patterned area 22 may be formed.
- first pattern region 20 and the second pattern region 22 minute projections are formed that protrude from the base surface 16, so that the surfaces of the first pattern region 20 and the second pattern region 22 are uneven.
- a first asterisk projection 34 and a second asterisk projection 36 which are examples of projections, are formed in the first pattern region 20 and the second pattern region 22 in a manner similar to each other.
- the shapes of the first asterisk projection 34 and the second asterisk projection 36 are similar in their respective regions. Also, the distance P between the first asterisk projection 34 and the second asterisk projection 36 adjacent to each other changes according to the similitude ratio.
- the shapes of the first asterisk projection 34 and the second asterisk projection 36 are similar in their respective regions. Accordingly, the shapes of the first asterisk projection 34 and the second asterisk projection 36 will be described below using the first pattern region 20 as an example.
- the first pattern area 20 has a plurality of first asterisk protrusions 34 and a plurality of second asterisk protrusions 36 projecting from the base surface 16 .
- the first asterisk projections 34 and the second asterisk projections 36 are alternately arranged in the tire circumferential direction and the tire radial direction.
- first asterisk projection 34 As shown in FIG. 3A, the first asterisk projections 34 are a plurality of projections extending in different directions from a center O1 as a base point when viewed from a direction perpendicular to the base surface 16 (rotational axis direction of the tire 10). , six extensions 34E are provided in this embodiment.
- the six extending portions 34E form an angle of 60° with each adjacent extending portion 34E.
- the first asterisk projection 34 has a shape in which six extending portions 34E extend radially from the center O1.
- the cross section in the direction orthogonal to the extending direction has a substantially isosceles triangle shape with a flat top surface 34C. That is, the first asterisk projection 34 has a top surface 34C and a pair of side surfaces 34D.
- the width of the top surface 34C (W1 in the drawing) is 0.02 mm
- the vertical angle of the first asterisk projection 34 (D1 in the drawing) is 26 degrees.
- the height (H in the drawing) of the first asterisk projection 34 is a predetermined value of 0.05 mm or more and 1.0 mm or less.
- the height of the protrusion is less than 0.05 [mm]
- it becomes difficult to form the protrusion and there is a possibility that the incident light may be attenuated and the brightness may not be lowered to the extent that it appears black. be.
- the height of the projection is set to 1.0 mm or less, the difference between the rigidity of the projection portion and the rigidity of the surrounding portion of the projection is reduced, thereby suppressing local stress concentration. ing.
- the height of the protrusions in the present embodiment and the dimensions such as the spacing (pitch) of the protrusions described later can be measured using, as an example, a one-shot 3D shape measuring machine VR-3000 series manufactured by Keyence Corporation. .
- the second asterisk projection 36 has a similar shape to the first asterisk projection 34 .
- the second asterisk projection 36 rotates the first asterisk projection 34 clockwise 90 degrees about the center O1 when viewed from a direction orthogonal to the base surface 16, and further, It has a shape in which the first asterisk projection 34 rotated 90 degrees around the center O1 is turned upside down. That is, the second asterisk projection 36 has six extending portions 36E extending in different directions from the center O2 as a base point, and each extending portion 36E has a top surface 36C and side surfaces 36D. ing.
- the first asterisk projections 34 and the second asterisk projections 36 are alternately arranged in the tire circumferential direction and the tire radial direction, filling the entire area.
- the distance between the center O1 and the center O2 (hereinafter referred to as the "distance P") is 0.1. It is set to a predetermined value equal to or greater than [mm] and equal to or less than 1.0 [mm]. If the interval P is less than 0.1 [mm], it will be difficult to form the protrusions. Furthermore, if the interval P is larger than 1.0 [mm], there is a possibility that the incident light cannot be attenuated and the lightness cannot be lowered to the extent that it looks black.
- first asterisk projections 34 and second asterisk projections 36 similar in shape to the first pattern region 20 are formed. , is lower than the density of the protrusions formed in the first pattern region 20 . As a result, the second pattern area 22 appears brighter than the first pattern area 20 .
- the first pattern region 20 and the second pattern region 22 described in the present embodiment are lightness L* values measured using a handy spectrophotometer (NF333) manufactured by Nippon Denshoku Industries Co., Ltd. is a region of less than 20 as an example.
- the value of the lightness L* ranges from 0 to 100, with values closer to 0 appearing blacker, and values closer to 100 appearing whiter.
- the lightness L* value of the base surface 16 is set to 23 as an example
- the lightness L* value of the second pattern region 22 is set to 15 as an example
- the lightness L* of the first pattern region 20 is set to 15 as an example.
- the value of lightness L* is set to 5 as an example. It should be noted that the value of the lightness L* of each region can be appropriately changed as required.
- the total area of the first pattern region 20 and the second pattern region 22 per decorative portion 14 can be, for example, within the range of 50% to 95%.
- the incident light is reflected outward by the smooth outer surface that constitutes the base surface 16 .
- the first pattern area 20 and the second pattern area 22 the light incident on the first asterisk projection 34 and the second asterisk projection 36 hits the side surfaces 34D and 36D shown in FIG. The incident light is attenuated while being repeatedly reflected between the facing side surfaces 34D and 36D, and is reflected outward. Therefore, the first pattern area 20 and the second pattern area 22 appear black compared to the base surface 16 .
- the area occupied by the base surface 16 of the second pattern area 22 per unit area is smaller than the area occupied by the base surface 16 of the first pattern area 20 per unit area. and widen.
- the amount of light reflected outward from the second pattern area 22 is greater than the amount of light reflected outward from the first pattern area 20 . That is, the lightness L* of the second pattern area 22 is higher than that of the first pattern area 20 . In other words, the second patterned area 22 appears relatively lighter than the first patterned area 20 , and the first patterned area 20 appears relatively darker than the second patterned area 22 .
- the first pattern region 20 and the second pattern region 22 arranged adjacent to the first pattern region 20 and having a higher brightness than the first pattern region 20 are included, and the gap S is a smooth surface. Since the decoration part 14 is provided with a plurality of pattern large areas 18 partitioned by , the decoration part 14 of this embodiment greatly expands the range of expression compared to a decoration part that is not configured in this way. can be done.
- the width of the gap S is determined so that the total area of the first pattern region 20 and the second pattern region 22 per decorative portion 14 is within the range of 50% to 95%. The visibility of the large pattern area 18 can be improved.
- the tire 10 according to a second embodiment of the present disclosure will be described.
- symbol is attached
- the tire 10 of the present embodiment has a pattern large region 18 having the same contour shape as that of the first embodiment, in the tire side portion 12. As shown in FIGS.
- regions 20a, 20b, 20c, 20d, 20e, and 20c have the same outline shape as the large pattern region 18 of the first embodiment. It has a region 22a, a region 22b, a region 22c, a region 22d, and a region 22e, and the shape of the protrusion in each region differs from that of the first embodiment.
- a plurality of linearly extending rib-like projections 38 are provided in the regions 20a, 20b, 20c, 22a, 22b, and 22c as an example of projections.
- the rib-shaped projections 38 can also be called ridges (mountain ridge-shaped projections; see FIG. 4).
- the area 20d, the area 20e, the area 22d, and the area 22e are smooth surfaces. It should be noted that the outline portion of the outer circumference of each region in this embodiment is formed of rib-like projections 40 similar to the rib-like projections 38 .
- the height of the rib-shaped projections 38 is 0.15 mm as an example, and the apex angle is 35 [degrees] as an example.
- the rib-like projection 40 has a height of 0.2 mm, for example, and an apex angle of 35 degrees, for example. These heights and apex angles can be changed as appropriate.
- the rib-shaped projections 38 are arranged in parallel along one direction, and the distance P between the center of one rib-shaped projection 38 and the center of the other adjacent rib-shaped projection 38 is shown in FIGS. 3A and 3B. Similar to the spacing between the first asterisk projection 34 and the second asterisk projection 36 .
- the interval P between the rib-shaped projections 38 in the second pattern region 22 is wider than the interval P between the rib-shaped projections 38 in the first pattern region 20, and the second pattern region 22 is closer to the first pattern. It appears relatively brighter than the region 20 .
- the first asterisk projection 34 and the second asterisk projection 36 are connected to each other, but they may be configured so that they are not connected to each other.
- the apex angle of the projections such as the first asterisk projection 34 and the second asterisk projection 36 was set to 26 [degrees], but other angles may be used. As the apex angle D1 increases, the proportion of reflected light reflected by the side surfaces 34D and 36D returning to the incident direction increases, and the lightness L* relatively increases.
- the first asterisk projection 34 and the second asterisk projection 36 having a plurality of radially extending extensions 34E, and the linearly extending rib-like projection 38 were given as examples of projections.
- the disclosure is not limited to this, and the planar shape of the protrusions is not limited to radial or linear, and may be a so-called embossed pattern.
- Grain patterns are patterns including, for example, leather patterns, satin patterns, wood grain patterns, texture patterns, and geometric patterns.
- first pattern region 20 and the second pattern region 22 are not limited to the shapes shown in the above embodiments, and may be of any shape such as a rectangular shape as shown in FIG. 7, for example.
- the large pattern area 18 of the above embodiment has two pattern areas with different brightnesses, it may have three or more pattern areas with different brightnesses.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Tires In General (AREA)
Abstract
Description
領域よりも明度が高い第2パターン領域とを含んで構成されている。
また、パターン大領域は、タイヤ径方向に複数配置されているため、タイヤ径方向に複数配置されていない場合に比較して、装飾部分の表現の幅を広げることができる。
図1~図4を用いて、本開示の第1の実施形態に係るタイヤ10について説明する。なお、図中に示す矢印Cは、タイヤ周方向を示し、矢印Rは、タイヤ径方向を示す。
第一アスタリスク突起34及び第二アスタリスク突起36の形状は、各々の領域において相似である。また、互いに隣接する第一アスタリスク突起34と第二アスタリスク突起36との間隔Pは、相似比に応じて変化している。
図3Aに示すように、第1パターン領域20は、ベース面16から突出した複数の第一アスタリスク突起34と、複数の第二アスタリスク突起36とを有している。そして、第一アスタリスク突起34と、第二アスタリスク突起36とは、タイヤ周方向、及びタイヤ径方向に交互に配置されている。
図3Aに示すように、 第一アスタリスク突起34は、ベース面16に対して直交する方向(タイヤ10の回転軸方向)から見て、基点としての中心O1からそれぞれ異なる方向へ延出された複数、本実施形態では6本の延出部34Eを備えている。
図3Aに示すように、第二アスタリスク突起36は、第一アスタリスク突起34と同様の形状をしている。具体的には、第二アスタリスク突起36は、ベース面16に対して直交する方向から見て、中心O1を中心にして第一アスタリスク突起34を時計回り方向に90〔度〕回転させ、さらに、中心O1を中心に90〔度〕回転させた第一アスタリスク突起34の上下を反転させた形状である。即ち、第二アスタリスク突起36は、基点としての中心O2からそれぞれ異なる方向へ延出された6本の延出部36Eを備えており、延出部36Eは、頂面36C、及び側面36Dを備えている。
〔mm〕以上1.0〔mm〕以下の予め決められた一の値とされている。間隔Pが0.1〔mm〕未満の場合は、突起の成形が困難となる。さらに、間隔Pが1.0〔mm〕より大きくなると、入射された光を減衰させて黒色に見える程度まで明度を低くできない虞がある。
次に、第2パターン領域22について説明する。
図3Bに示すように、第2パターン領域22には、第1パターン領域20と相似形の第一アスタリスク突起34及び第二アスタリスク突起36が形成されているが、形成されている突起の密度は、第1パターン領域20に形成されている突起の密度と比して、低くされている。これにより、第2パターン領域22は、第1パターン領域20に比較して、相対的に明るく見える。
次に、本実施形態に係るタイヤ10の作用効果について説明する。
これに対し、第1パターン領域20、及び第2パターン領域22では、第一アスタリスク突起34及び第二アスタリスク突起36へ入射する光が、図4に示す側面34D、36Dに当たる。そして、入射した光は、向かい合う側面34D、36D間で反射を繰り返しながら減衰して外側に反射される。したがって、第1パターン領域20、及び第2パターン領域22は、ベース面16に比較して黒く見える。
次に、本開示の第2の実施形態に係るタイヤ10について説明する。なお、第1の実施形態と同一構成には同一符号を付し、その説明は省略する。
図5、及び図6に示すように、本実施形態のタイヤ10は、第1の実施形態と同様の輪郭形状とされたパターン大領域18をタイヤサイド部12に備えている。
以上、本開示の一実施形態について説明したが、本開示は、上記に限定されるものでなく、上記以外にも、その主旨を逸脱しない範囲内において種々変形して実施可能であることは勿論である。
本明細書に記載されたすべての文献、特許出願、及び技術規格は、個々の文献、特許出願、及び技術規格が参照により取り込まれることが具体的かつ個々に記載された場合と同程度に、本明細書中に参照により取り込まれる。
Claims (3)
- タイヤ外面のタイヤ周方向に沿って配置され、各々が凹凸によって形成され、平滑面で区画された複数のパターン大領域を備え、
前記パターン大領域は、第1パターン領域と、前記第1パターン領域と隣接して配置され前記第1パターン領域よりも明度が高い第2パターン領域と、を含んで構成されている、
タイヤ。 - 前記パターン大領域は、タイヤ側部においてタイヤ径方向に複数配置されている、
請求項1に記載のタイヤ。 - 一つ前記パターン大領域の中に、前記第1パターン領域、及び前記第2パターン領域の少なくとも一方が複数設けられている、
請求項1または請求項2に記載のタイヤ。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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EP21931703.9A EP4309919A1 (en) | 2021-03-16 | 2021-11-22 | Tire |
CN202180095710.5A CN116997474A (zh) | 2021-03-16 | 2021-11-22 | 轮胎 |
US18/547,683 US20240123770A1 (en) | 2021-03-16 | 2021-11-22 | Tire |
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JP2021042926A JP2022142662A (ja) | 2021-03-16 | 2021-03-16 | タイヤ |
JP2021-042926 | 2021-03-16 |
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WO2022195960A1 true WO2022195960A1 (ja) | 2022-09-22 |
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PCT/JP2021/042850 WO2022195960A1 (ja) | 2021-03-16 | 2021-11-22 | タイヤ |
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US (1) | US20240123770A1 (ja) |
EP (1) | EP4309919A1 (ja) |
JP (1) | JP2022142662A (ja) |
CN (1) | CN116997474A (ja) |
WO (1) | WO2022195960A1 (ja) |
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JP2002522294A (ja) * | 1998-08-14 | 2002-07-23 | ミシュラン ルシェルシェ エ テクニク ソシエテ アノニム | デザインパターンを有する不透明物品 |
JP2010052471A (ja) * | 2008-08-26 | 2010-03-11 | Toyo Tire & Rubber Co Ltd | 空気入りタイヤ |
JP2011105231A (ja) * | 2009-11-19 | 2011-06-02 | Bridgestone Corp | 空気入りタイヤ |
JP2015024722A (ja) * | 2013-07-25 | 2015-02-05 | 東洋ゴム工業株式会社 | 空気入りタイヤ |
WO2018059751A1 (de) * | 2016-09-27 | 2018-04-05 | Continental Reifen Deutschland Gmbh | Fahrzeugreifen |
WO2018059758A1 (de) * | 2016-09-27 | 2018-04-05 | Continental Reifen Deutschland Gmbh | Fahrzeugreifen |
JP2019081514A (ja) * | 2017-10-31 | 2019-05-30 | 住友ゴム工業株式会社 | 重荷重用空気入りタイヤ |
WO2019111828A1 (ja) * | 2017-12-08 | 2019-06-13 | 株式会社ブリヂストン | タイヤ |
JP2019099094A (ja) | 2017-12-07 | 2019-06-24 | 株式会社ブリヂストン | タイヤ |
JP2021042926A (ja) | 2019-09-13 | 2021-03-18 | 三菱重工業株式会社 | 冷却流路構造及びバーナー |
-
2021
- 2021-03-16 JP JP2021042926A patent/JP2022142662A/ja active Pending
- 2021-11-22 WO PCT/JP2021/042850 patent/WO2022195960A1/ja active Application Filing
- 2021-11-22 US US18/547,683 patent/US20240123770A1/en active Pending
- 2021-11-22 EP EP21931703.9A patent/EP4309919A1/en active Pending
- 2021-11-22 CN CN202180095710.5A patent/CN116997474A/zh active Pending
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JP2002522294A (ja) * | 1998-08-14 | 2002-07-23 | ミシュラン ルシェルシェ エ テクニク ソシエテ アノニム | デザインパターンを有する不透明物品 |
JP2010052471A (ja) * | 2008-08-26 | 2010-03-11 | Toyo Tire & Rubber Co Ltd | 空気入りタイヤ |
JP2011105231A (ja) * | 2009-11-19 | 2011-06-02 | Bridgestone Corp | 空気入りタイヤ |
JP2015024722A (ja) * | 2013-07-25 | 2015-02-05 | 東洋ゴム工業株式会社 | 空気入りタイヤ |
WO2018059751A1 (de) * | 2016-09-27 | 2018-04-05 | Continental Reifen Deutschland Gmbh | Fahrzeugreifen |
WO2018059758A1 (de) * | 2016-09-27 | 2018-04-05 | Continental Reifen Deutschland Gmbh | Fahrzeugreifen |
JP2019081514A (ja) * | 2017-10-31 | 2019-05-30 | 住友ゴム工業株式会社 | 重荷重用空気入りタイヤ |
JP2019099094A (ja) | 2017-12-07 | 2019-06-24 | 株式会社ブリヂストン | タイヤ |
WO2019111828A1 (ja) * | 2017-12-08 | 2019-06-13 | 株式会社ブリヂストン | タイヤ |
JP2021042926A (ja) | 2019-09-13 | 2021-03-18 | 三菱重工業株式会社 | 冷却流路構造及びバーナー |
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JP2022142662A (ja) | 2022-09-30 |
CN116997474A (zh) | 2023-11-03 |
EP4309919A1 (en) | 2024-01-24 |
US20240123770A1 (en) | 2024-04-18 |
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