Arrangement Of Grooves Or Ribs In Sidewall Patents (Class 152/523)
  • Patent number: 11207927
    Abstract: A pneumatic tire includes a pair of sidewall portions. At least one of the pair of sidewall portions is provided with circumferentially spaced protrusions protruding axially outwardly. Each of the protrusions includes a first end in a tire circumferential direction and a recess extending in the tire circumferential direction from the first end and having a terminal end terminating within the protrusion.
    Type: Grant
    Filed: August 2, 2018
    Date of Patent: December 28, 2021
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Koki Nagasawa
  • Patent number: 11192405
    Abstract: A pneumatic tire includes a carcass layer that has a toroidal shape and extends between a pair of bead portions, a sidewall portion, one of the pair of bead portions being provided at an inner end of the sidewall portion in a tire radial direction TR, and a mark formed in an outer surface of the sidewall portion. The mark includes a protruded portion provided in the outer surface of the sidewall portion and recessed inward in a tire width direction, and a mark body defined by the protruded portion. The surface of the mark body coincides with a reference surface corresponding to the outer surface of the sidewall portion.
    Type: Grant
    Filed: December 3, 2018
    Date of Patent: December 7, 2021
    Assignee: TOYO TIRE CORPORATION
    Inventor: Isao Yonetsu
  • Patent number: 11173753
    Abstract: A pneumatic tire includes a plurality of protrusions that are provided in a range that includes the tire maximum width position of the tire side portion, and that extend in a direction intersecting the radial direction. The plurality of protrusions are separated from each other in the tire circumferential direction by spacings, pass through the center of rotation of the tire, and extend in the tire radial direction. In a case where a first straight line and a second straight line with different tire circumferential direction positions each cross the protrusions, a ratio of a sum of masses per unit length of the protrusions the first straight line crosses to a sum of masses per unit length of the protrusion the second straight line crosses is not less than 0.8 and not greater than 1.2.
    Type: Grant
    Filed: February 19, 2016
    Date of Patent: November 16, 2021
    Inventors: Yuji Kodama, Yuji Minami
  • Patent number: 11173754
    Abstract: A pneumatic tire is provided including a plurality of protrusions and a plurality of recesses of at least one tire side portion. A region including the recesses is provided in the outermost side in a tire radial direction. The protrusions are formed as convexities having a longitudinal shape in a predetermined direction. A region including the protrusions is provided inward in the tire radial direction of the region including the recesses.
    Type: Grant
    Filed: May 10, 2017
    Date of Patent: November 16, 2021
    Inventors: Hiroshi Fujii, Masatoshi Kuwajima, Masataka Koishi
  • Patent number: 11161376
    Abstract: A pneumatic tire exerts an excellent blurring effect on irregularities resulting from a boundary between members in a sidewall portion. A pneumatic tire includes a serration portion formed by providing multiple basic ridges side by side at intervals in a tire circumferential direction on a surface of a sidewall portion, and multiple sub-ridges extending in a direction crossing the basic ridges and shorter than the basic ridges, which are provided without coupling the basic ridges neighboring each other.
    Type: Grant
    Filed: October 16, 2018
    Date of Patent: November 2, 2021
    Assignee: TOYO TIRE CORPORATION
    Inventor: Toshikazu Yasunaga
  • Patent number: 11155123
    Abstract: A pneumatic tire comprises a plurality of protrusion portions extending along a tire side surface of a tire side portion in a direction that intersects a tire circumferential direction and a tire radial direction; the plurality of protrusion portions each including an intermediate portion in an extension direction that includes a highest position of projection height from the tire side surface, and tip portions on either side of the intermediate portion in the extension direction that include a lowest position of projection height from the tire side surface; and the plurality of protrusion portions including a radially outer protrusion portion with at least the intermediate portion disposed outward of a tire maximum width position in the tire radial direction, and a radially inner protrusion portion with at least the intermediate portion disposed inward of the tire maximum width position in the tire radial direction.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: October 26, 2021
    Inventor: Yuji Kodama
  • Patent number: 11148476
    Abstract: A tire includes a pattern portion that is formed on a tire surface and in which ridges are arranged in a nest shape having a center point, the ridges including ridgelines CL having a curved portion in plan view, in which a height of each of the ridges is from 0.2 mm to 0.5 mm, and adjacent ridges are arranged at a constant pitch of from 0.15 mm to 0.35 mm.
    Type: Grant
    Filed: January 24, 2017
    Date of Patent: October 19, 2021
    Assignee: BRIDGESTONE CORPORATION
    Inventors: Sotaro Iwabuchi, Takayuki Fukunaga
  • Patent number: 11124028
    Abstract: A pneumatic tire exerts an excellent blurring effect on irregularities resulting from a boundary between members in a sidewall portion. A pneumatic tire includes a serration portion formed by providing multiple basic ridges side by side at intervals in a tire circumferential direction on a surface of a sidewall portion, and multiple sub-ridges extending in a direction crossing the basic ridges and shorter than the basic ridges, which are provided without coupling the basic ridges neighboring each other.
    Type: Grant
    Filed: October 16, 2018
    Date of Patent: September 21, 2021
    Assignee: TOYO TIRE CORPORATION
    Inventor: Toshikazu Yasunaga
  • Patent number: 11097574
    Abstract: One or more marks provided on a reference surface has an edging portion forming an outer edge of the or each mark and a mark main portion arranged inside the edging portion. A surface of the edging portion is inclined with respect to the reference surface in a direction in which a height thereof from the reference surface increases from one side to the other side in a tyre radial direction. A surface of the mark main portion is inclined with respect to the reference surface in an opposite direction to the surface of the edging portion.
    Type: Grant
    Filed: February 14, 2019
    Date of Patent: August 24, 2021
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Koichi Nakajima
  • Patent number: 11097573
    Abstract: A pneumatic tire is provided with tread rubber that forms a contact patch; and a belt layer which is disposed toward the interior in a tire radial direction from the tread rubber. A shoulder lug portion is provided with a narrow groove that partitions the shoulder lug portion into a main body portion and into a sacrificial portion. A plurality of concavities are open toward both the contact patch at the main body portion and the groove side face, wherein innermost ends in the tire width direction of the respective concavities are disposed so as to be at the same location in the tire width direction as an outermost end in the tire width direction of the belt layer or are arranged toward the exterior in the tire width direction from the outermost end in the tire width direction of the belt layer.
    Type: Grant
    Filed: December 5, 2018
    Date of Patent: August 24, 2021
    Assignee: TOYO TIRE CORPORATION
    Inventor: Kazuki Ohta
  • Patent number: 11077721
    Abstract: A mark indicating portion provided on a sidewall portion includes a reference surface provided on a surface of the sidewall portion and marks formed on the reference surface. A surface of each mark is inclined with respect to the reference surface in a direction in which a height thereof increases from one side to the other side in a tyre radial direction.
    Type: Grant
    Filed: February 12, 2019
    Date of Patent: August 3, 2021
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Koichi Nakajima, Toshiaki Suzuki
  • Patent number: 11072208
    Abstract: A pneumatic tire comprises a plurality of protrusion portions extending along a tire side surface of a tire side portion in a direction that intersects a tire circumferential direction and a tire radial direction; the plurality of protrusion portions each including an intermediate portion in an extension direction that includes a highest position of a projection height from the tire side surface, and tip portions on either side of the intermediate portion in the extension direction that include a lowest position of the projection height from the tire side surface; and at least the intermediate portion being only disposed inward of a tire maximum width position in the tire radial direction.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: July 27, 2021
    Inventor: Yuji Kodama
  • Patent number: 11072207
    Abstract: At least a part of a surface of at least one mark provided on a surface of a sidewall portion is provided with a serration portion in which a plurality of ridges is arranged in parallel. Each of the ridges has a triangular or trapezoidal cross section taken perpendicular to a length direction thereof having a first oblique side and a second oblique side, and an angle of the first oblique side with respect to a reference surface is different from an angle of the second oblique side with respect to the reference surface.
    Type: Grant
    Filed: February 14, 2019
    Date of Patent: July 27, 2021
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Koichi Nakajima
  • Patent number: 11052710
    Abstract: In a pneumatic tire, regions on an outer side in a radial direction of maximum width positions of outer surfaces of sidewall portions include decorative regions and display regions adjacent to the decorative regions in a circumferential direction, the decorative regions being formed by serration processing to include an array of parallel ridges, the display regions including a portion where a smooth surface without ridges extends in the circumferential direction between end portions of the decorative regions, and being including an indication formed by combining constituent units each depicting an alphanumeric, a pattern, or a symbol, a valley formed between adjacent ridges in the decorative regions being recessed relative to the smooth surface, and the display regions in one of the sidewall portions on one side and in another one of the sidewall portions on the other side being arranged at positions shifted from each other in the circumferential direction.
    Type: Grant
    Filed: April 17, 2019
    Date of Patent: July 6, 2021
    Inventor: Yuki Nagahashi
  • Patent number: 11046123
    Abstract: A mark indicating portion arranged on a sidewall portion is provided with a reference surface provided on a surface of the sidewall portion and a mark formed on the reference surface. A surface of the mark is inclined in a tyre circumferential direction. Further, the mark is provided with a concave portion in which the surface is lower than the reference surface and a convex portion in which the surface is higher than the reference surface. The concave portion is arranged on one side in the tyre circumferential direction and the convex portion is arranged on the other side in the tyre circumferential direction.
    Type: Grant
    Filed: February 12, 2019
    Date of Patent: June 29, 2021
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Koichi Nakajima
  • Patent number: 11014414
    Abstract: A tire sidewall portion is provided with a circumferentially extending decorative zone which comprises a serrated region formed from ridges extending in a radial direction and arranged side by side in the tire circumferential direction. The ridges include continuous ridges and discontinuous ridges with a discontinuity part. A diagonal pattern is formed by discontinuity-pattern elements each formed from the discontinuity parts of the discontinuous ridges positioned adjacently in the tire circumferential direction. In the diagonal pattern, one of the continuous ridges is disposed between every two of the adjacent discontinuity-pattern elements.
    Type: Grant
    Filed: November 9, 2018
    Date of Patent: May 25, 2021
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Masashi Wakasugi, Daiki Imai
  • Patent number: 10936839
    Abstract: A product identification system that reduces operator error related to scanning an incorrect barcode. The product identification system includes a generally planar substrate with a barcode disposed thereon. The substrate includes a raised section that extends out of the plane of the substrate with a portion of the barcode being disposed on the raised section such that the barcode is detectable only when a detector is properly positioned relative to the barcode. The product identification system can be used in a warehouse environment to prevent warehouse workers from scanning nearby barcodes by mistake.
    Type: Grant
    Filed: May 31, 2019
    Date of Patent: March 2, 2021
    Assignee: The Procter & Gamble Company
    Inventor: Michelle Peta Lowry
  • Patent number: 10870318
    Abstract: A pneumatic tire has a designated vehicle inner/outer side orientation for when mounted on a vehicle, and includes: a reinforcing rubber layer disposed in sidewall portions on sides in a tire lateral direction, the reinforcing rubber layer having a crescent shaped meridian cross-section; wherein a radius of curvature with an arc joining intersections of straight lines and a tire external contour, and a radius of curvature with an arc joining intersections of the straight lines and a carcass layer have a relationship such that, on the vehicle outer side, a radius of curvature of the carcass layer is large with respect to a radius of curvature of the tire external contour, and on the vehicle inner side, a radius of curvature of the carcass layer is small with respect to a radius of curvature of the tire external contour.
    Type: Grant
    Filed: July 27, 2016
    Date of Patent: December 22, 2020
    Inventor: Hiraku Kouda
  • Patent number: 10864779
    Abstract: A pneumatic tire comprises a plurality of protrusion portions extending along a tire side surface of a tire side portion in a direction that intersects a tire circumferential direction and a tire radial direction; the plurality of protrusion portions each including an intermediate portion in an extension direction that includes a highest position of projection height from the tire side surface, and tip portions on either side of the intermediate portion in the extension direction that include a lowest position of projection height from the tire side surface; and the plurality of protrusion portions including a radially outer protrusion portion with at least the intermediate portion disposed outward of a tire maximum width position in the tire radial direction, and a radially inner protrusion portion with at least the intermediate portion disposed inward of the tire maximum width position in the tire radial direction.
    Type: Grant
    Filed: May 9, 2016
    Date of Patent: December 15, 2020
    Inventor: Yuji Kodama
  • Patent number: 10857841
    Abstract: A pneumatic tire includes a carcass layer, a belt layer disposed outward of the carcass layer, a tread rubber disposed outward of the belt layer in a tire radial direction, sidewall rubbers disposed outward of the carcass layer in a tire width direction, and protectors disposed in regions from tire ground contact edges to maximum tire width positions and protruding from tire profiles. The protectors have a rubber hardness Hs_p in a range of 50?Hs_p?60, an elongation at break Eb_p in a range of 500%?Eb_p?700%, and an elastic modulus E_p in a range of 3.4 MPa?E_p?7.0 MPa.
    Type: Grant
    Filed: January 26, 2016
    Date of Patent: December 8, 2020
    Inventor: Shoei Kakuta
  • Patent number: 10857842
    Abstract: A pneumatic tire of the present technology includes: protrusions that are provided in a range including a maximum tire width position in a tire side portion, and extend in a direction that intersects a tire radial direction. The protrusions are provided having a space therebetween in a tire circumferential direction, pass through a center of rotation, extend in the tire radial direction and, when a first straight line and a second straight line each having different positions in the tire circumferential direction each traverse the protrusions, have a ratio of from 0.8 to 1.2, both inclusive, between a total mass per unit length for the protrusions traversed by the first straight line and a total mass per unit length for the protrusions traversed by the second straight line. A ratio between a total width SW and an outer diameter OD fulfills the relationship SW/OD?0.3.
    Type: Grant
    Filed: May 9, 2016
    Date of Patent: December 8, 2020
    Inventors: Yuji Kodama, Yuji Minami
  • Patent number: 10775272
    Abstract: A system for measuring rolling resistance of a substrate may include a transparent support member including a contact surface, a rolling member including a cylindrical convex surface with the substrate attached on the cylindrical convex surface, the cylindrical convex surface placed on the contact surface, an oscillation mechanism coupled with the rolling member configured to drive an oscillatory rotational movement of the rolling member about a longitudinal axis of the rolling member. The oscillation mechanism may include two parallel arms attached at their respective midpoints to either base ends of the rolling member on a pivot axis overlapping the longitudinal axis of the rolling member, the two parallel arms attached to one another at respective ends of the two parallel arms by two links, and two adjustable weights, each of the two adjustable weights mounted on a respective link of the two links.
    Type: Grant
    Filed: December 5, 2018
    Date of Patent: September 15, 2020
    Inventor: Ali Samadi
  • Patent number: 10773558
    Abstract: A pneumatic tire includes a sidewall portion extending in a tire radial-direction. The sidewall portion includes a plurality of projecting portions projecting in a tire width-direction, and at least one reinforcing portion which is at least partly different in a projecting amount from a projecting amount of the projecting portions at the same position in the tire radial-direction, and is connected to the projecting portion in a tire circumferential-direction.
    Type: Grant
    Filed: April 21, 2017
    Date of Patent: September 15, 2020
    Assignee: TOYO TIRE CORPORATION
    Inventor: Yoshiki Sato
  • Patent number: 10730353
    Abstract: A tire includes: a first pattern portion and a second pattern portion on a tire surface, the first pattern portion being formed of plural first ridges adjacent to each other and the second pattern portion being formed of plural second ridges extending in a different direction from the first ridges in plan view arranged adjacent to each other, in which a height of the first ridges and the second ridges is from 0.2 mm to 0.5 mm and the first ridges adjacent to each other and the second ridges adjacent to each other are arranged at a constant pitch of from 0.15 mm to 0.35 mm.
    Type: Grant
    Filed: January 26, 2017
    Date of Patent: August 4, 2020
    Assignee: BRIDGESTONE CORPORATION
    Inventor: Sotaro Iwabuchi
  • Patent number: 10675920
    Abstract: A circumferential direction protrusion is provided extending longitudinally mainly along a tire circumferential direction on a side outward in a tire radial direction from a maximum tire width position on at least a first tire side portion of a tire.
    Type: Grant
    Filed: February 15, 2019
    Date of Patent: June 9, 2020
    Assignee: The Yokohama Rubber Co., LTD.
    Inventors: Yuji Kodama, Masataka Koishi, Kenichiro Endo
  • Patent number: 10661609
    Abstract: A recessed portion is formed in each tire side portion of an agricultural machinery pneumatic tire. Rigidity at the part of each tire side portion where the recessed portion is formed is reduced. This enables each tire radial direction outside portion to be made to tilt over toward tire width direction outside with the recessed portion as a point of origin without reducing the internal pressure, enabling the ground contact width of a tread portion to be enlarged. Since there is no need to intentionally reduce the internal pressure in order to reduce the ground contact pressure, bead portions do not tilt over more than necessary, and there is no reduction in the durability of the bead portions.
    Type: Grant
    Filed: February 20, 2015
    Date of Patent: May 26, 2020
    Assignee: BRIDGESTONE CORPORATION
    Inventor: Takashi Kodama
  • Patent number: 10611194
    Abstract: A circumferential recess is formed on the outer surface of a tire side section, the circumferential recess being depressed inward in a tread width direction and extending in a tire circumferential direction. In a cross section along the tread width direction of the tire and the tire radial direction, a rim-side outer surface formed in an area from a rim separation point, which is the outermost point in the tire radial direction that is in contact with a rim flange, to an inner end of the circumferential recess in the tire radial direction, is formed along a first arc curve having a center of a curvature radius on the inside in the tread width direction. In the cross section, a sidewall surface formed in an area from the inner end of the circumferential recess in the tire radial direction to a bottom surface of the circumferential recess is formed along a second arc curve having a center of a curvature radius on the outside in the tread width direction.
    Type: Grant
    Filed: January 25, 2013
    Date of Patent: April 7, 2020
    Assignee: BRIDGESTONE CORPORATION
    Inventor: Sayaka Mishima
  • Patent number: 10596860
    Abstract: A pneumatic tire includes a reinforcing rubber layer disposed in the sidewall portions and having a crescent-like meridian cross-section; wherein when the tire is assembled on a regular rim and in an unloaded state with an internal pressure of 0 kPa, a radius of curvature (RP) is larger than a radius of curvature (RO), an arc of the radius of curvature (RP) joining an intersection (Pa) of a carcass layer and a straight line (La), an intersection (Pb) of the carcass layer and a straight line (Lb), and an intersection (Pc) of the carcass layer and a straight line (Lc), and an arc of the radius of curvature (RO) joining an intersection (Oa) of the straight line (La) and a tire external contour, an intersection (Ob) of the straight line (Lb) and the tire external contour, and an intersection (Oc) of the straight line (Lc) and the tire external contour.
    Type: Grant
    Filed: December 24, 2015
    Date of Patent: March 24, 2020
    Assignee: The Yokohama Rubber Co., LTD.
    Inventor: Hiraku Kouda
  • Patent number: 10576793
    Abstract: A pneumatic tire includes a projection formed on a surface of a tire side portion. The projection includes a top surface, and first and second side surfaces respectively forming a side surface in a tire circumferential direction. A first side edge portion, where the top and first side surfaces intersect, has an inclination to a tire radial direction viewed in a tire width direction. A second side edge portion, where the top and second side surfaces intersect, has an inclination to the tire radial direction as viewed in the tire width direction. A first tip end angle made by the top surface and the first side surface on the first side edge portion, and a second tip end angle made by the top surface and the second side surface on the second side edge portion are 100° or less. The rotational direction of the pneumatic tire is not designated.
    Type: Grant
    Filed: January 31, 2017
    Date of Patent: March 3, 2020
    Assignee: TOYO TIRE CORPORATION
    Inventors: Takeshi Miyamoto, Hiroshi Nashio
  • Patent number: 10532614
    Abstract: Provided is a tire in which, by improving a decorative portion provided on a side portion, while a high visibility and a crack resistance are secured, molding man-hours are reduced, thereby improving a moldability and a cost performance.
    Type: Grant
    Filed: February 13, 2015
    Date of Patent: January 14, 2020
    Assignee: BRIDGESTONE CORPORATION
    Inventor: Sotaro Iwabuchi
  • Patent number: 10442251
    Abstract: A pneumatic tire includes a decorative portion on an outer surface of a side wall portion that includes a first region that is linked to the inner side in the tire radial direction and the outer side in the tire radial direction of the decorative portion without being divided by a circumferential direction rib band, and a second region that is continuously surrounded in at least three directions by a radial direction rib band and the circumferential direction rib band, the total area of the first region and the total area of the second region are each 10% or greater of the total area of the decorative portion, ridges are provided in at least one of the first region and the second region, and the pattern contrast between the first region and the second region is varied.
    Type: Grant
    Filed: April 24, 2014
    Date of Patent: October 15, 2019
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventor: Takahisa Murata
  • Patent number: 10427473
    Abstract: A pneumatic tire includes sidewall portions, at least one of which is provided in the outer surface thereof with an axially outwardly protruding protector. The protector is composed of patterned unit protrusions arranged at intervals in the tire circumferential direction. Each patterned unit protrusion includes a first protruding portion and a second protruding portion which extend in a tire radial direction and spaced apart from each other in the tire circumferential direction, and a third protruding portion connecting between the first and second protruding portions. The radial dimension L1 of the first protruding portion is more than the radial dimension L2 of the second protruding portion.
    Type: Grant
    Filed: January 19, 2017
    Date of Patent: October 1, 2019
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Kazuma Mori, Mitsuru Sueyoshi
  • Patent number: 10363782
    Abstract: A vehicle pneumatic tire includes a tread, ply structure, and radial carcass extending around a bead core in each bead region and extending back under the ply structure. Side wall regions are formed by a wing rubber extending from the side of the tread toward the bead region and a rim protection rubber extending from the bead region toward the wing rubber. The wing rubber is the only rubber component extending to the tread and runs in the radially outer portion of the side wall region in contact with the carcass and covers the adjacent rubber component toward the bead region by the radially inner end section of the wing rubber. The adjacent rubber component includes an end section in the covered region narrowing toward the tread, the end of which is located a distance from a base line between 45% and 70% of the height determined therefrom.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: July 30, 2019
    Assignee: Continental Reifen Deutschland GmbH
    Inventors: Frank Molzow-Voit, Darren Kidney
  • Patent number: 10245899
    Abstract: A tire mold is provided with a groove-like saw cut in an area of a tire molding surface which comes into contact with a side surface of a tire. The saw cut comprises a pair of circumferential saw cuts arranged to be spaced in a tire diametrical direction, a grid-like saw cut which is expanded between the pair of circumferential saw cuts, and a plurality of frame-like saw cuts which are dotted between the pair of circumferential saw cuts. The frame-like saw cuts fringe a closed area which is wider than a smooth area defined by the grid-like saw cut. The grid-like saw cut surrounds the frame-like saw cuts to prevent the frame-like saw cuts from coming into contact with each other. The frame-like saw cuts are coupled to each other via the grid-like saw cut.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: April 2, 2019
    Assignee: TOYO TIRE & RUBBER CO., LTD.
    Inventor: Tetsuji Miyazaki
  • Patent number: 10245898
    Abstract: There is provided a rubber decor or a tire having: a rubber; a white layer arranged on or above a surface of the rubber and composed of a white paint; and a colored layer composed of a paint except a white paint and at least partially applied on the white layer. The darkest part of the white layer has brightness of 80% or more. The white layer and the colored layer constitute a desired decoration.
    Type: Grant
    Filed: November 26, 2012
    Date of Patent: April 2, 2019
    Assignee: BRIDGESTONE CORPORATION
    Inventor: Yuki Nakamura
  • Patent number: 10239268
    Abstract: Provided are: a tire mold including a bead portion molding surface for molding the bead portion of the tire, the bead portion molding surface having a ridge molding part including a recessed groove extending in the mold radial direction, the ridge molding part being formed in a flange contact portion molding region for molding a rim-flange contact portion of the tire; and a pneumatic tire, in which a bead filler has the tire radial direction outer end positioned more inward in the tire radial direction relative to the rim line position, and a ridge forming portion including a ridge extending in the tire radial direction is formed on the outer surface of the bead portion, the ridge forming portion being positioned in the rim flange contact portion.
    Type: Grant
    Filed: February 12, 2013
    Date of Patent: March 26, 2019
    Assignee: BRIDGESTONE CORPORATION
    Inventor: Takahiro Uchida
  • Patent number: 10207548
    Abstract: A tire has at least one band of cooling fins located on a sidewall portion of the tire. The band of cooling fins has at least one protruding cooling fin and at least one recess located adjacent to the cooling fin. At least a portion of the recess is recessed axially inwards relative to the cooling fin. The cooling fin has a height equal to or greater than an airflow boundary layer thickness at a predetermined location and angular velocity of the tire.
    Type: Grant
    Filed: April 9, 2015
    Date of Patent: February 19, 2019
    Assignee: Bridgestone Americas Tire Operations, LLC
    Inventors: Aleksandr Ian Shmagranoff, Kevin E. Scheifele, Stephen Thomas Miranda, Todd Alan Buxton
  • Patent number: 10195910
    Abstract: The carcass of this tire (1) has a carcass body and folded sections each folded around a bead core. A circumferential recessed section, which is recessed inward in the tire width direction and extends in the tire circumferential direction, is formed on the outer surface of the tire side section, and turbulence-generating protrusions are provided on the circumferential recessed section. In a cross-section of the tire, wherein the distance between the inner surface of the carcass body section and a rim-separation point where the inner surface comes into contact with a normal rim is defined as a tire reference thickness, and the distance between the inner surface of the folded section and the tire outer surface at the circumferential recessed section is defined as a tire thickness, the multiple turbulence-generating protrusions are provided in an area where the tire thickness is between 20% and 60% of the tire reference thickness.
    Type: Grant
    Filed: February 21, 2014
    Date of Patent: February 5, 2019
    Assignee: BRIDGESTONE CORPORATION
    Inventor: Hiroyuki Matsumura
  • Patent number: 10118357
    Abstract: A holder is for arranging a foil on the mold surface of a sidewall shell of a vulcanizing mold. The holder has a sleeve which can be pressed into a bore in the sidewall shell and, arranged in the sleeve, a helically-spring-mounted, coaxially movable pin. The pin has a pin head which, in an initial position, projects beyond an end of the sleeve with the force of the spring and on which a foil can be positioned on the mold surface. The pin, in an end position, is movable into the sleeve counter to the force of the spring such that the pin head end remote from the pin is aligned with the end of the sleeve. The pin head forms a clearance fit with the sleeve. The clearance fit is such that the pin is movable in the sleeve but no rubber material can ingress into the sleeve.
    Type: Grant
    Filed: January 10, 2018
    Date of Patent: November 6, 2018
    Assignee: Continental Reifen Deutschland GmbH
    Inventor: Joachim Gerhardt
  • Patent number: 10081145
    Abstract: In each protrusion-forming recess of a mold, a non-through-hole vent is provided at one end side, and a through-hole vent that is longer than the non-through-hole vent is provided at another end side. When there is an ingress of rubber of a green tire into each protrusion-forming recess, air inside the protrusion-forming recess is discharged through the through-hole vent and the minute amount of air remaining inside escapes to the non-through-hole vent. Each through-hole vent is set with a large capacity, enabling an ingress of rubber into the vent hole that will later become spew to be stopped inside the through-hole vent. Since the volume of air that is trapped inside the protrusion-forming recess is a minute amount, and so the volume of air that escapes into the non-through-hole vent is also a minute amount.
    Type: Grant
    Filed: March 5, 2015
    Date of Patent: September 25, 2018
    Assignee: BRIDGESTONE CORPORATION
    Inventor: Kazuya Kuroishi
  • Patent number: 10040321
    Abstract: A tire 10 includes a decorative portion 15 formed by using paint on a surface of a side portion 12. The decorative portion 15 includes a white-paint layer 16 and a color-paint layer 17. The white-paint layer is formed by using a white paint in at least a portion of the decorative portion 15. The color-paint layer is formed on the white-paint layer 16 in an overlapping manner by using a color paint in color different from the white paint. A ratio of a paint area of the white-paint layer 16 per unit area of a paint surface is at least 68%. The ratio of the paint area of the white-paint layer 16 is greater than a ratio of a paint area of the color-paint layer 17.
    Type: Grant
    Filed: May 9, 2014
    Date of Patent: August 7, 2018
    Assignee: BRIDGESTONE CORPORATION
    Inventor: Tomoyuki Amano
  • Patent number: 10029433
    Abstract: A tire vulcanization mold according to an embodiment includes a side molding surface, a stencil plate forming a convex mark at an outer surface of a side portion, and an attachment recess depressed in the side molding surface. The stencil plate includes a mark forming concave portion which is depressed from a surface by embossing and a curved portion formed by curving both end portions in a width direction in a direction opposite to the depressed direction of the concave portion. The stencil plate may be attached to the attachment recess by press-inserting. A tip of the curved portion may contact a wall surface of the attachment recess to be elastically deformed so that a curved state of the curved portion increases and the stencil plate may be fixed into the attachment recess by fitting.
    Type: Grant
    Filed: February 27, 2018
    Date of Patent: July 24, 2018
    Assignee: TOYO TIRE & RUBBER CO., LTD.
    Inventor: Masaaki Ohara
  • Patent number: 10029518
    Abstract: A pneumatic tire comprises a sidewall portion provided in the outer surface with a serrated area defined by radially-extending circumferentially-arranged ridges. The serrated area has circumferentially-arranged groups each including: at least one first ridge being straight over the entire length; and a plurality of second ridges, circumferentially arranged side-by-side, and each provided with an irregular part and otherwise being straight. In each of the ridge groups, the irregular parts of the second ridges are gradually radially shifted so that the irregular parts are arranged along a line inclined with respect to a tire radial direction, and by the irregular parts, an oblique pattern is formed in the ridge group.
    Type: Grant
    Filed: July 22, 2014
    Date of Patent: July 24, 2018
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Tomoyuki Mukai
  • Patent number: 10023013
    Abstract: Provided is a tire and a tire surface printing method which are capable of reducing man-hours and cost required for application of printing on the tire surface. The tire and the tire surface printing method include, on an outer surface of at least one of side portions (3) thereof, a printed region (5) formed by printing. The printed region (5) includes: a dark-colored portion (7) having a black color, which is a base color of the tire; and a bright-colored portion (9) that has a color different from the black color and that is located to surround the dark-colored portion (7). The dark-colored portion (7) is not applied with any paint, and the bright-colored portion (9) includes a white-colored layer (11) that includes a white color paint and that is located as the lowermost layer being in contact at least with the outer surface (3a) of the side portion (3).
    Type: Grant
    Filed: February 17, 2014
    Date of Patent: July 17, 2018
    Assignee: BRIDGESTONE CORPORATION
    Inventors: Yuki Nakamura, Kojiro Torisu
  • Patent number: 9989440
    Abstract: Method for indicating attacks on a tire (1) for a heavy vehicle of the civil engineering type. This method comprises a first step of applying a retroreflective covering material (7) to at least part of at least one tire lateral face (6) allowing visual detection in an environment of darkness of that part of at least one tire lateral face (6), a second step of using the tire (1) in a mechanically aggressive environment, a third step of identifying, in an environment of darkness, the attacked zones (8) of the part of at least one tire lateral face (6) initially covered with the retroreflective covering material (7) and now devoid of the said retroreflective covering material (7) as a result of the mechanical attack experienced by the tire (1) in use.
    Type: Grant
    Filed: October 23, 2013
    Date of Patent: June 5, 2018
    Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventor: Olivier Ferlin
  • Patent number: 9969138
    Abstract: A mold for vulcanizing and molding a tire is disclosed herein. The tire includes a tread delimited by two sidewalls, and the mold includes a ring for molding the tread of the tire and two shells having tire-molding surface features for molding the sidewalls. At least one of the shells has a removable shell part extending circumferentially on the side of the sidewall of the tire to be molded, with the tire-molding surface features being incorporated into the removable shell part.
    Type: Grant
    Filed: June 26, 2014
    Date of Patent: May 15, 2018
    Assignees: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN, MICHELIN RECHERCHE ET TECHNIQUE S.A.
    Inventors: Bernard Villeneuve, Anthony Gueugneau
  • Patent number: 9956826
    Abstract: A circumferential recess is formed on the outer surface of a tire side section, the circumferential recess being recessed inward in a tread width direction and extending in a tire circumferential direction. A block protruding outward in the tread width direction is formed on the inside of the circumferential recess. In a cross section along the tread width direction of the tire and the tire radial direction, a rim outer surface is formed in an area from a rim separation point, which is the outermost point in the tire radial direction that is in contact with a rim flange, to an inner end of the circumferential recess in the tire radial direction. At least a part of the block protrudes further to the outside in the tread width direction than a virtual line along which the rim outer surface extends.
    Type: Grant
    Filed: January 25, 2013
    Date of Patent: May 1, 2018
    Assignee: BRIDGESTONE CORPORATION
    Inventor: Sayaka Mishima
  • Patent number: 9950746
    Abstract: A vehicle is provided with wheels fitted with pneumatic tires, and a vehicle body including wheel wells that surround the wheels. The pneumatic tire includes a plurality of protrusions on a sidewall portion that faces a predetermined wheel well side surface. An average normal vector of the wheel well side surface is inclined with respect to a rotation axis of the wheel. In such a configuration, when the vehicle is traveling and the tires are rotating, an air flow promotion effect and rectification effect are produced due to the protrusions on the sidewall portion, and negative pressure forms between the tire and the wheel well side surface.
    Type: Grant
    Filed: December 22, 2014
    Date of Patent: April 24, 2018
    Assignee: The Yokohama Rubber Co., LTD.
    Inventor: Yuji Kodama
  • Patent number: 9926021
    Abstract: A strake may direct air around a structure that moves in a forward direction and that has a first side and a second side. The strake may include a first section that may curve inward and rearward around the structure and that may be shaped to direct oncoming air toward the second side. The strake may include a second section that may be positioned further in the forward direction than a portion of the structure and may be shaped to direct oncoming air toward the first or second side.
    Type: Grant
    Filed: November 5, 2015
    Date of Patent: March 27, 2018
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Taeyoung Han, Kuo-Huey Chen, Chih-Hung Yen, Bahram Khalighi
  • Patent number: 9849732
    Abstract: A pneumatic tire has a side wall having a side surface and dimples formed on the side surface. The side surface has the tire maximum width point, the dimples are aligned along circumferential rows in concentric form with respect to the tire axis such that the dimples form lateral ribs and longitudinal ribs, the lateral ribs each have radially outer side surface and radially inner side surface and include first and second ribs, the first rib is formed such that the height from the dimple bottom at the inner side surface and the height from the dimple bottom at the outer side surface are equal, the second rib is formed such that the height from the dimple bottom at the inner side surface is greater than the height from the dimple bottom at the outer side surface, and the second rib is positioned radially inward from the maximum width point.
    Type: Grant
    Filed: April 30, 2014
    Date of Patent: December 26, 2017
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Naoki Yukawa