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Publication numberWO2012117962 A1
Publication typeApplication
Application numberPCT/JP2012/054570
Publication dateSep 7, 2012
Filing dateFeb 24, 2012
Priority dateMar 1, 2011
Also published asEP2682285A1, EP2682285A4, EP2682285B1
Publication numberPCT/2012/54570, PCT/JP/12/054570, PCT/JP/12/54570, PCT/JP/2012/054570, PCT/JP/2012/54570, PCT/JP12/054570, PCT/JP12/54570, PCT/JP12054570, PCT/JP1254570, PCT/JP2012/054570, PCT/JP2012/54570, PCT/JP2012054570, PCT/JP201254570, WO 2012/117962 A1, WO 2012117962 A1, WO 2012117962A1, WO-A1-2012117962, WO2012/117962A1, WO2012117962 A1, WO2012117962A1
InventorsTomoaki Ito, 智明 伊藤, Naoya Ochi, 越智 直也, Yuki Watanabe, 祐貴 渡辺
ApplicantKabushiki Kaisha Bridgestone, 株式会社ブリヂストン
Export CitationBiBTeX, EndNote, RefMan
External Links: Patentscope, Espacenet
Spike for tire
WO 2012117962 A1
Abstract
The purpose of the present invention is to provide a spike for a tire which has improved clawing force (ice traveling performance) and reduced weight. The spike comprises: a pillar (2) attached to a tread surface of a tire by fitting an axial (X) end of the pillar (2) into a closed-end hole formed in the tread surface; a pin (3) protruding from the other end surface (20) of the pillar (2) in the direction of a central axis (X) of the pillar (2), wherein the pin (3) has a heteromorphic pillar shape having recesses (22) formed by removing portions of the other end surface and circumferential surface of a cylindrical pillar shape protruding from the other end surface (20) of the pillar (2) in the direction of the central axis (X).
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Claims(4)  translated from Japanese
  1. 中心軸に沿った方向の一端面側からタイヤのトレッド面に形成された有底孔に嵌め込まれてトレッド面に取り付けられる柱体と、前記柱体の中心軸に沿った方向の他端面より前記中心軸に沿った方向に突出するピンとを備え、 And it is fitted from one end face side of the direction along the central axis to the bottomed hole formed in the tread surface of the tire pillar mounted on the tread surface, wherein from the other end face in a direction along the central axis of the columnar body and a pin protruding in the direction along the central axis,
    前記ピンは、前記柱体の他端面より突出して前記柱体の中心軸に沿った方向に延長する円柱体の他端面と周面とに跨る部分を除去した窪み部を備えた異形柱体により形成されたことを特徴とするタイヤ用スパイク。 Said pins, by irregular pillar having a recess in which the removal of the other end surface and the peripheral surface and the span portion of the direction extending cylindrical body along the central axis of the projecting the columnar body from the other end face of the columnar body tire spike, characterized in that it has been formed.
  2. 前記ピンの他端面と前記窪み部との境界線が曲線により形成され、前記窪み部の窪み面が湾曲面により形成されたことを特徴とする請求項1に記載のタイヤ用スパイク。 Boundary between the recessed portion and the other end face of the pin is formed by a curve, and a tire spike according to claim 1 in which depression surface of the depression portion and is characterized in that is formed by a curved surface.
  3. 前記窪み部は複数設けられ、前記ピンは、周方向において互いに隣り合う窪み部と窪み部との間に、前記円柱体の他端面と周面とに跨る部分を除去した前記窪み部よりも窪み量の小さい小窪み部が設けられた異形柱体により形成されたことを特徴とする請求項1又は請求項2に記載のタイヤ用スパイク。 The recess is provided with a plurality, wherein the pin is provided between the recess and the recess adjacent to each other in the circumferential direction, recess than said recess by removing a portion extending over the other end surface and the peripheral surface of the cylindrical body The tire spikes according to claim 1 or claim 2, characterized in that a small recess of the small amount of it is formed by irregular pillar provided.
  4. 前記柱体の他端面と前記柱体の周面とに跨る部分を除去した柱体側窪み部を備え、前記柱体の他端面と前記柱体側窪み部との境界線と前記ピンの他端面と前記窪み部との境界線とが前記柱体の中心軸を通る一直線と交差するように前記窪み部と前記柱体側窪み部とが配置されたことを特徴とする請求項1乃至請求項3のいずれか一項に記載のタイヤ用スパイク。 With the other end surface and the peripheral surface pillar side recess portion by removing a portion extending over the said columnar body of said columnar body, the other end surface of the pin end surface of the columnar body and the boundary line between the pillar side recess of claims 1 to 3 and the boundary line between the recessed portion is characterized in that the said pillar side recess portion and the recessed portion so as to intersect the straight line passing through the center axis of the columnar member is disposed The tire spikes according to any one.
Description  translated from Japanese
タイヤ用スパイク Spike tires

本発明は、引っかき力向上及び軽量化を実現可能なタイヤ用スパイクに関する。 The present invention relates to a scratch force improvement and lighter feasible tire spike.

中心軸に沿った方向の一端面側からタイヤのトレッド面に形成された有底孔に嵌め込まれて取り付けられる柱体と、当該柱体の中心軸に沿った方向の他端面より前記中心軸に沿った方向に突出するピンとを備えたタイヤ用スパイクにおいて、前記ピンが、円柱又は角柱等により形成された構成のタイヤ用スパイクが知られている。 A columnar body which is mounted from one end face side of the direction along the central shaft is fitted in bottomed holes formed in the tread surface of the tire, to the central axis than the other end surface in a direction along the central axis of the columnar member a tire spike comprising a pin projecting in the direction along the pin, a tire spike configuration formed by a cylindrical or prismatic, etc. are known.

特開2010-95212号公報 Patent Publication No. 2010-95212 EP1798069A2 EP1798069A2 WO2009/068744A1 WO2009 / 068744A1 RU2280564C1 RU2280564C1

トレッド面にタイヤ用スパイクが取り付けられたスパイクタイヤにおいて、氷上性能を向上させるためには、タイヤ用スパイクのピンの径を大きくしてピンの投影エッジ成分(ピンの最大幅長に相当)を増やすことにより、氷面に対するピンの引っかき力を向上させることが有効であるが、タイヤ用スパイクの重量は、決められた重さ以下(例えば、最大1.1g)となるように重量規制されているため、当該重量規制を満たすためには、ピンの径を大きくすることに限界がある。 In spike tires spiked tire is mounted on the tread surface, in order to improve the on-ice performance, increase the pin projection edge component (corresponding to the widest length of the pin) by increasing the diameter of the pin spike tires By, but to improve the scratch force of the pin against the ice surface is enabled, the weight of the spike tires, the weight was determined following (eg, up to 1.1g) is the weight regulated so as to Therefore, in order to satisfy the weight restriction, there is a limit to increasing the diameter of the pin.
上述したピンの投影エッジ成分はピンの形状を円柱にした場合に大きくできるため、ピンの重量を抑えて投影エッジ成分を大きくするためには、ピンの形状を円柱にすることが好ましい。 Since the projected edge components of the above-mentioned pins can be increased in the case where the pin shape cylinder, in order to suppress the weight of the pin to increase the projected edge component, it is preferable that the shape of the pin to the cylinder.
しかしながら、ピンの形状を円柱にした場合、ピンの円形端面と周面との境界線が円線となり、角(3つ以上の面の境界となる頂点)が無くなるので、氷面に対するピンの貫入力が小さいという課題がある。 However, when the shape of the pin in the cylinder, a boundary line between the circular end face and the circumferential surface of the pin is a circular line, because the angle (the boundary become vertices of the three or more surfaces) are eliminated, transmural pins for ice surface there is a problem that the input is small.
一方、ピンの形状を、断面三角形、断面四角形等の角柱にした場合、ピンの形状を円柱とした場合に比べて、ピンの重量を抑えて投影エッジ成分を大きくすることができないという課題がある。 Meanwhile, the shape of the pin, when the prism such as a triangular cross section, square cross section, the shape of the pin as compared to the case of a cylinder, there is a problem that it is impossible to increase the projected edge component by suppressing the weight of the pin .
本発明は、投影エッジ成分を大きくすることができて氷面に対するピンの貫入力も大きくできるようにして氷面に対する引っかき力を向上でき、かつ、軽量化を図れるタイヤ用スパイクを提供する。 The present invention is to be able to increase the projected edge components to be able to pin the penetration force is large relative to the ice surface to be able to improve the scratch force to the ice surface and to provide a tire spike that achieved weight reduction. 即ち、引っかき力向上(氷上性能向上)及び軽量化を実現可能なタイヤ用スパイクを提供する。 In other words, to provide a scratch force improvement (on-ice performance improvement) and tire spike feasible lighter.

本発明に係るタイヤ用スパイクは、中心軸に沿った方向の一端面側からタイヤのトレッド面に形成された有底孔に嵌め込まれてトレッド面に取り付けられる柱体と、前記柱体の中心軸に沿った方向の他端面より前記中心軸に沿った方向に突出するピンとを備え、前記ピンは、前記柱体の他端面より突出して前記柱体の中心軸に沿った方向に延長する円柱体の他端面と周面とに跨る部分を除去した窪み部を備えた異形柱体により形成されたので、引っかき力向上及び軽量化を実現できる。 Tire spikes according to the present invention, a columnar body which is fitted from one end face side of the direction along the central axis to the bottomed hole formed in the tread surface of the tire to be mounted on the tread surface, the central axis of the columnar body and a pin projecting from the direction other end surface of the direction along the central axis along the said pin, said columnar body direction extending cylindrical body along the central axis of the projecting the columnar body from the other end surface of the The other end surface and the peripheral surface so formed by irregular pillar with a recess by removing a portion spanning and, it is possible to realize a scratch force increase and weight.
前記ピンの他端面と前記窪み部との境界線が曲線により形成され、前記窪み部の窪み面が湾曲面により形成されたので、前記ピンの他端面と前記ピンの周面である湾曲面と前記窪み部の窪み面である湾曲面との境界により形成される角が鋭利となり、この角により局所的にエッジ圧が高まるので、氷面への貫入力が高まる。 Boundary between the recessed portion and the other end face of the pin is formed by a curve, the depression surface of the depression portion is formed by a curved surface, a curved surface is a circumferential surface of the other end surface and the pins of the pin the angle formed by the boundary between the recessed portion of the recess surface is a curved surface becomes sharp, so locally the edge pressure increases by the square, penetration force of the ice surface is increased.
前記窪み部は複数設けられ、前記ピンは、周方向において互いに隣り合う窪み部と窪み部との間に、前記円柱体の他端面と周面とに跨る部分を除去した前記窪み部よりも窪み量の小さい小窪み部が設けられた異形柱体により形成されたので、小窪み部を備えたことにより、ピンの軽量化をより図れるとともに、ピンの他端面と湾曲面と湾曲面との境界により形成される角の数を多くできるので、氷面への貫入力及び軽量化をより向上できる。 The recess is provided with a plurality, wherein the pin is provided between the recess and the recess adjacent to each other in the circumferential direction, recess than said recess by removing a portion extending over the other end surface and the peripheral surface of the cylindrical body Since small small recess of the amount formed by the profiled pillar provided, the boundary by providing the small recessed portion, as well achieved more the weight of the pin and the curved surface and the other end surface and the curved surface of the pin it is possible to increase the number of corners to be formed, it is possible to further improve the penetration force and weight of the ice surface.
前記柱体の他端面と前記柱体の周面とに跨る部分を除去した柱体側窪み部を備え、前記柱体の他端面と前記柱体側窪み部との境界線と前記ピンの他端面と前記窪み部との境界線とが前記柱体の中心軸を通る一直線と交差するように前記窪み部と前記柱体側窪み部とが配置されたので、柱体の軽量化をより図れるとともに、柱体側窪み部により形成された柱体の角とピンの角との相乗効果により氷面への貫入力も向上する。 With the other end surface and the peripheral surface pillar side recess portion by removing a portion extending over the said columnar body of said columnar body, the other end surface of the pin end surface of the columnar body and the boundary line between the pillar side recess Since with the pillar body side recess portion and the recess portion so that the boundary line between the recessed portion intersects the straight line passing through the center axis of the columnar member is disposed, together with the achieved more the weight of the pillar, the pillar penetration force into the ice surface is improved by a synergistic effect between the corner and the pin of the corners of the columnar body formed by the side recess.

タイヤ用スパイクを示す斜視図(実施形態1)。 Perspective view of a spike tire (Embodiment 1). タイヤ用スパイクのピンの平面図(実施形態1)。 Plan view of the pin of the spike tires (Embodiment 1). (a)はタイヤとタイヤ用スパイクとの関係を断面で示し、(b)はタイヤ用スパイクが取り付けられたスパイクタイヤの断面を示す(実施形態1)。 (A) shows the relationship between the spike tires and the tire in cross section, (b) shows a cross section of a spike tire mounted spike tires (Embodiment 1). (a)はタイヤ用スパイクを示す斜視図、(b)はタイヤ用スパイクの平面図(実施形態2)。 (A) a perspective view showing the spike tires, (b) is a plan view of a spike tire (Embodiment 2). (a)はタイヤ用スパイクを示す斜視図、(b)はタイヤ用スパイクのピンの平面図(実施形態3)。 (A) a perspective view showing the spike tires, (b) is a plan view of a pin of a spiked tire (Embodiment 3). (a)はタイヤ用スパイクを示す斜視図、(b)はタイヤ用スパイクのピンの平面図(実施形態4)。 (A) a perspective view showing the spike tires, (b) is a plan view of a pin of a spiked tire (Embodiment 4).

実施形態1 Embodiment 1
図1乃至図3を参照し、実施形態1によるタイヤ用スパイクの構成を説明する。 1 through Referring to Figure 3, a configuration of a spike tire according to the first embodiment.
図3(a);(b)に示すように、タイヤ用スパイク1は、例えば金属により形成され、中心軸Xに沿った方向の一端面4側からタイヤ5のトレッド面6に形成された有底孔7に嵌め込まれて取り付けられることによってスパイクタイヤ8を形成するものであり、柱体2と、ピン3とを備える。 Figure 3 (a); as shown in (b), organic tire spike 1, which for instance is formed of a metal, which is formed from one end face 4 side of the direction along the central axis X on the tread surface 6 of the tire 5 It is intended to form a spiked tire 8 by being attached by being fitted into the bottom hole 7, and comprises a pillar 2 and a pin 3.
タイヤ用スパイク1は、それぞれ別々に形成された柱体2とピン3とを組み合わせて形成されたり、柱体2とピン3とが一体に形成されて構成される。 Tire spike 1 can be formed by combining a respective separately formed the pillar 2 and the pin 3, and the pillar 2 and the pin 3 is constructed integrally formed.

柱体2は、例えばシャンク(柄)又はボディと呼ばれ、中心軸Xに沿った方向の一端面4側から有底孔7に嵌め込まれて取り付けられる。 Pillar 2, for example, called the shank (shank) or body, mounted is fitted in the bottomed hole 7 from the one surface 4 side in a direction along the central axis X. 柱体2は、少なくとも一端面4側が有底孔7に嵌め込まれる。 Pillar 2, at least one end face 4 side is fitted into the bottomed hole 7. 即ち、柱体2の一端面4側あるいは柱体2の全体が有底孔7に嵌め込まれて取り付けられる。 In other words, the whole of one end face 4 side or the column body 2 of pillar 2 is it attached is fitted into the bottomed hole 7.
柱体2は、柱部10と柱部10の一端に設けられたフランジ11とを備える。 Pillar 2 is provided with a flange 11 provided at one end of the column portion 10 and column portion 10. 柱部10の他端部が大径円柱部12により形成され、柱部10の一端部が大径円柱部12の径よりも小径の小径円柱部13により形成される。 The other end of the pillar portion 10 is formed by the large-diameter column portion 12, one end of the pillar portion 10 is formed by the small diameter of the small-diameter cylindrical portion 13 than the diameter of the large-diameter column portion 12. 即ち、柱部10は、大径円柱部12の円周面の一端縁と小径円柱部13の円周面の他端縁とが円錐状面14で繋がれた二段径の柱体により構成される。 That is, the column portion 10, constituting the other edge of the circumferential surface of one end and a small diameter cylindrical portion 13 of the circumferential surface of the large-diameter column portion 12 has a columnar member of the two-stage diameter connected by a conical surface 14 differentially. フランジ11は大径円柱部12よりも大径の円形板により形成され、有底孔7の底部に形成された係合孔部15に係止することで抜止めとして機能する。 Flange 11 is formed by a circular plate having a larger diameter than the large-diameter column portion 12, and functions as a retaining by engaging the engaging holes 15 formed in the bottom of the bottomed hole 7.

有底孔7の径は大径円柱部12の径よりも小さく形成され、図外の機械を用いて柱体2を有底孔7内に圧入することにより、タイヤ用スパイク1が有底孔7に取り付けられてスパイクタイヤ8が形成される。 The diameter of the bottomed hole 7 is smaller than the diameter of the large-diameter column portion 12, by press-fitting the pillar 2 into the bottomed hole 7 using a non-illustrated machine, spiked tire 1 is bottomed hole is attached to the 7 spike tire 8 is formed.

ピン3は、柱体2よりも小径に形成され、柱体2の他端面20より突出して柱体2の中心軸Xに沿った方向に延長するように設けられる。 Pin 3 is formed smaller in diameter than the pillar 2 is provided so as to extend in the direction along the central axis X of the column member 2 to protrude from the other end surface 20 of the pillar 2. ピン3、大径円柱部12、小径円柱部13、フランジ11の中心軸は、同一である。 Pin 3, large-diameter column portion 12, the small-diameter cylindrical portion 13, the central axis of the flange 11, is the same.
ピン3は、柱体2の他端面20より突出して柱体2の中心軸Xに沿った方向に延長する円柱体21(図2において想像線(二点鎖線)で示す)をベースにして形成されたものである。 Pin 3 is formed by pillar 2 of the other end surface 20 direction extending cylindrical body 21 along the central axis X of the pillar 2 so as to protrude from the (indicated by phantom lines (two-dot chain line) in FIG. 2) to the base It has been and is one.
即ち、ピン3は、円柱体21の突出端側である他端面と円柱体21の周面とに跨る部分を除去した窪み部22を備えた異形柱体により形成される。 That is, the pin 3 is formed by a profiled pillar having a recess 22 to remove the portion spanning the peripheral surface of the other end face and a projecting end side cylindrical member 21 of the cylindrical body 21. 換言すれば、窪み部22は、円柱体21の他端面と円柱体21の周面とに跨る部分が抉られたような形状で円柱体21の周面から中心軸Xに近付く方向に形成された凹部である。 In other words, recess 22 is formed in a direction approaching the central axis X in a shape such that the portion extending over the other end surface and the peripheral surface of the cylindrical body 21 of the cylindrical body 21 are scooped from the circumferential surface of the cylindrical body 21 It is a recess.
そして、ピン3を形成する異形柱体の他端面23と窪み部22の窪み面24との境界線25が円柱体21の周面から中心軸Xに近付くように湾曲する円弧曲線のような曲線により形成され、窪み部22の窪み面24が湾曲面により形成される。 And, curve, such as the arc curve boundary line 25 of the recess surface 24 of the recess 22 and the other end surface 23 of the profiled pillar body forming the pin 3 is curved so as to approach the central axis X from the circumferential surface of the cylindrical body 21 is formed by the recess surface 24 of the recessed portion 22 is formed by a curved surface.

窪み部22は、ピン3を形成する異形柱体の他端面23から柱体2の他端面20まで連続する窪み(凹部)により形成され、当該窪みの断面形状(即ち、ピン3の中心軸Xと直交する断面形状)は、ピン3の他端面23から柱体2の他端面20に渡ってどこでも同じ形状である。 The recessed portion 22 is formed by a recess continuously from the other end surface 23 of the profiled pillar body forming a pin 3 to the other end surface 20 of the pillar 2 (recess), the depression of the cross-sectional shape (ie, the central axis of the pin 3 X cross-sectional shape perpendicular to the) is, anywhere from the other end surface 23 of the pin 3 across to the other end surface 20 of the pillar 2, which is the same shape.

ピン3は窪み部22を例えば4つ備え、当該4つの窪み部22が、円柱体21の周面において当該円柱体21の中心軸Xを中心として円柱体21の周方向に等角度間隔、即ち、90隔てて設けられた構成である。 Pin 3 is provided with a recess 22 four example, the four recess portions 22 in the circumferential direction at equal angular intervals of the cylindrical body 21 about the central axis X of the cylindrical body 21 in the circumferential surface of the cylindrical body 21, ie, is a structure that is provided to be spaced 90 . 換言すれば、ピン3の中心軸Xを中心としてタイヤ用スパイク1を初期状態から90回転させる毎に、ピン3の他端面23の形状が十字状のような同一形状となるように構成される。 In other words, a tire spike 1 about the central axis X of the pin 3 from the initial state every time it is rotated 90 , the shape of the other end surface 23 of the pin 3 is configured such that the cross-shaped like the same shape that.

また、ピン3は、ピン3の他端面23と窪み部22との境界線25が円柱体21の周面から中心軸Xに近付くように湾曲する湾曲線により形成され、窪み部22の窪み面24が円柱体21の周面から中心軸Xに近付くように湾曲する湾曲面により形成される。 Also, the pin 3 is formed by a curved line boundary line 25 between the recess 22 and the other end face 23 of the pin 3 is curved so as to approach the center axis X from the circumferential surface of the cylindrical body 21, recess surfaces of the recess portions 22 24 is formed by a curved surface that is curved so as to approach the center axis X from the circumferential surface of the cylindrical body 21.
従って、ピン3は、ピン3の他端面23である平面とピン3の周面26(円柱体21の残った周面)である湾曲面と窪み部22の窪み面24である湾曲面との境界により形成された角30を備えた構成となる。 Therefore, pin 3, of the circumferential surface 26 curved surface is a recess surface 24 of the curved surface and the recessed portion 22 is (remaining peripheral surface of the cylindrical body 21) of the plane and pin 3 which is the other end surface 23 of the pin 3 it is configured to include a corner 30 formed by the boundary. 当該角30は、3つの平面の境界により形成される角柱の角と比べてより鋭利となり、当該角30により局所的にエッジ圧が高まるので、氷面への貫入力が高まる。 The angle 30 becomes a sharper as compared to the angle of the prism formed by the boundaries of the three planes, the locally edge pressure by the angle 30 is increased, penetration force of the ice surface is increased.

実施形態1のタイヤ用スパイク1によれば、円柱体21を基にして形成されたピン3であって、円柱体21の突出端側である他端面と円柱体21の周面とに跨る部分を除去した窪み部22を有した異形柱体により形成されたピン3を備えたので、円柱や角柱により形成されたピンと比べて、重量低減を図れるとともに投影エッジ成分H(ピン3では円柱体21の直径の長さに相当(図2参照))を大きくでき、しかも、角30を備えるので、氷面への貫入力も向上する。 According to the tire spike 1 in the embodiment 1, the cylindrical body 21 and a pin 3 which is formed based on, and extending over the other end surface and the peripheral surface of the cylindrical body 21 is a projecting end side of the cylindrical body 21 part Because with a pin 3 which is formed by irregular pillar having to the recesses 22 removed, as compared to pin formed by a cylindrical or prismatic projection together achieved a weight reduction edge component H (pin 3 in the cylindrical body 21 (see FIG. 2) corresponds to the length of the diameter) can be increased. Moreover, since provided the corner 30 is also improved penetration force to the ice surface. よって、重量を軽減できるとともに引っかき力(氷上性能)を向上できるタイヤ用スパイク1となる。 Therefore, it is a tire spike 1 can improve scratch strength it is possible to reduce the weight (on-ice performance).

実施形態2 Embodiment 2
図4に示すような柱体2Aを備えたタイヤ用スパイク1であってもよい。 It may be a tire spike 1 with a pillar 2A as shown in FIG. 4.
即ち、実施形態1の構成に加えて、実施形態1での柱体2の他端面20を形成する大径円柱部12の円形の他端面と柱体2の周面2aを形成する大径円柱部12の円柱周面とに跨る部分を除去した柱体側窪み部41を有した柱体2Aを備えた構成のタイヤ用スパイク1としてもよい。 That is, in addition to the configuration of the first embodiment, large-diameter columns to form a circular peripheral surface 2a of the other end face and column body 2 of the large-diameter column portion 12 forming the other end face 20 of the pillar 2 in the first embodiment It may be used as a tire spike 1 in the configuration provided with the pillar 2A having a pillar body side recess 41 to remove the portion spanning the cylindrical peripheral surface of the part 12.
柱体側窪み部41は、例えば、実施形態1での柱体2の他端面20において両端が柱体2の他端面20の円形の円周縁に到達して他端面20と柱体側窪み部41との境界線42となる湾曲線を基準にして、他端面20の円形の円周縁付近の一部が柱体2の他端面20と柱体2の周面2aとに跨って抉り取られるようにして除去されて形成される。 Pillar side recess portion 41, for example, the other end surface 20 and the pillar side recess 41 ends at the other end surface 20 of the pillar 2 has reached the circular circumferential edge of the end surface 20 of the pillar 2 in the first embodiment by a curved line which is between the boundary line 42 to the reference, and as part of the near circular circumference edge of the other end surface 20 is taken gouge across the circumferential surface 2a of the other end face 20 and the column body 2 of pillar 2 it is formed to be removed Te.
柱体側窪み部41の窪み面43は例えば湾曲面に形成される。 Depression surface 43 of the pillar side recess portion 41 is formed in a curved surface, for example.
従って、柱体2Aは、柱体2Aの他端面20である平面と柱体2Aの周面2aである湾曲面と柱体側窪み部41の窪み面43である湾曲面との境界により形成された角50を備えた構成となる。 Therefore, pillar 2A was formed by the boundary of the other end surface 20 a is flat and is a peripheral surface 2a of the column body 2A curved surface and the depression surface 43 is a curved surface of the pillar side recessed portion 41 of the pillar 2A it is configured to include a corner 50. 当該角50は、3つの平面の境界により形成される角柱の角と比べてより鋭利となり、当該角50により局所的にエッジ圧が高まるので、氷面への貫入力が高まる。 The angle 50 becomes a sharper as compared to the angle of the prism formed by the boundaries of the three planes, the locally edge pressure by the angle 50 is increased, penetration force of the ice surface is increased.
また、柱体側窪み部41は例えば4つ設けられ、当該4つの柱体側窪み部41が、柱体2の中心軸Xを中心として柱体2の周方向に等角度間隔、即ち、90隔てて設けられた構成である。 Also, the pillar side recess 41 is disposed four For example, the four pillars side recess 41 equal angular intervals in the circumferential direction of the columnar body 2 around the center axis X of the pillar 2, ie, 90 apart It is a configuration provided Te.
そして、例えば、柱体2Aの他端面20と柱体側窪み部41との境界線42となる湾曲線とピン3の他端面23と窪み部22との境界線25となる湾曲線とが柱体2Aの中心軸Xを通る一直線aと交差するように窪み部22と柱体側窪み部41とが配置された構成とすれば、柱体2のピン3の角30と柱体2の角50との相乗効果によって氷面への貫入力が向上する。 Then, for example, the other end face 20 and the curved lines and the pillar body that becomes the boundary line 25 of the other end surface 23 and the recessed portion 22 of the curved line and pin 3 to be the boundary line 42 of the pillar side recessed portion 41 of the pillar 2A Assuming 2A configuration in which the recess portion 22 and the pillar side recess portions 41 so as to intersect the straight line a is positioned through the center axis X of the corners 50 of the square 30 and the column body 2 of the pin 3 of the pillar 2 to improve the penetration force to the ice surface by the synergistic effect of. 特に、柱体2の他端面20と柱体側窪み部41との境界線42となる湾曲線の中心とピン3の他端面23と窪み部22との境界線25となる湾曲線の中心とが柱体2Aの中心軸Xを通る一直線a上に位置するように構成すれば、柱体2のピン3の角30と柱体2Aの角50との相乗効果による氷面への貫入力がより向上する。 In particular, it is the center of the curved line which is a boundary line 25 of the other end face 20 and the other end surface 23 and the recessed portion 22 of the center and pin 3 of the boundary line 42 and become curved line between the pillar side recessed portion 41 of the pillar 2 If configured to be positioned on a straight line a passing through the center axis X of the column body 2A, penetration force into the ice surface due to the synergistic effect with the corners 50 of the square 30 and column body 2A of the pin 3 of the pillar 2, more improvement to. つまり、柱体側窪み部41と窪み部22とが柱体2Aの中心軸Xに向けて同一方向に窪む構成とする。 That is, a structure in which recessed in the same direction towards the central axis X of the pillars side recess 41 recess 22 Togahashira body 2A.
実施形態2のタイヤ用スパイク1によれば、実施形態1で説明した窪み部22を有したピン3と柱体側窪み部41を有した柱体2Aとを備えたので、柱体2より軽量の柱体2Aとなることでタイヤ用スパイク1の重量を低減でき、かつ、ピン3の角30と柱体2Aの角50との相乗効果により氷面への貫入力も向上する。 According to the tire spike 1 according to the second embodiment, since a pillar 2A having the pin 3 and the pillar side recess portion 41 having a recess 22 described in Embodiment 1, from the pillar 2 of the light-weight it is possible to reduce the weight of the tire spike 1 by a pillar 2A, and penetration force into the ice surface is improved by a synergistic effect with the corners 50 of the square 30 and column body 2A of the pin 3. よって、実施形態1と比べて、さらに重量を軽減できるとともに、さらに引っかき力を向上できるタイヤ用スパイク1を提供できる。 Therefore, as compared with Embodiment 1, as well can further reduce the weight, it is possible to provide a tire spike 1 which can further improve the scratch force.

実験結果を以下に示す。 It shows the experimental results below.
試験方法: Test method:
・30km/hから0km/hまで減速するのに要した時間を計測して氷上ブレーキ性能を評価した。 To evaluate the time is measured to ice braking performance which is required to decelerate to 0km / h from 30km / h.
・0km/hから20km/hまで加速するのに要した時間を計測して氷上トラクション性能を評価した。 From 0km / h by measuring the time required to accelerate to 20km / h to evaluate the ice traction performance.
試験車両:VW Golf6 Test vehicle: VW Golf6
タイヤサイズ:205/55R16 Tire Size: 205 / 55R16
試験体: Specimens:
試験体1=ピンが円柱体、ピンの直径2mmのタイヤ用スパイク 試験体2=ピンが円柱体、ピンの直径3mmのタイヤ用スパイク 試験体3=ピンが断面十字形状の柱体、ピンの最大径3mmのタイヤ用スパイク 試験体4=実施形態1のタイヤ用スパイク(直径3mmの円柱体21をベースに形成したピン3を備えたもの) Test body 1 = pin cylindrical body, tires of pin diameter 2mm spike test body 2 = pin is cylindrical body, tires of the pin with a diameter of 3mm spike test body 3 = pin pillar of the cross-section cross-shaped, pin maximum of diameter 3mm tire spike specimen 4 = tire spikes according to the first embodiment of the (one with a pin 3 which is formed in the base of the cylindrical body 21 having a diameter of 3mm)
試験体5=実施形態2のタイヤ用スパイク(試験体4のタイヤ用スパイクの柱体2を柱体側窪み部41を有した柱体2としたもの) Tire spike of the test specimen 5 = embodiment 2 (which was the pillar 2 of the tire for the spike of the test specimen 4 a pillar body 2 having a pillar side recess 41)
以上の条件で実験した結果は以下の通りである。 As a result of experiments under the above conditions were as follows.
氷上ブレーキ性能は、試験体1の評価値を100とすると、試験体2の評価値は103、試験体3の評価値は104、試験体4の評価値は106、試験体5の評価値は107であった。 Ice braking performance, and the evaluation value of the test body 1 and 100, evaluation value of the specimen 2 of the evaluation value 103, the evaluation value of the specimen 3 104, evaluation value of the specimen 4 106, specimen 5 It was 107.
氷上トラクション性能は、試験体1の評価値を100とすると、試験体2の評価値は105、試験体3の評価値は106、試験体4の評価値は108、試験体5の評価値は109であった。 Ice traction performance, when the evaluation value of the test piece 1 and 100, evaluation value of the specimen 2 of the evaluation value 105, specimen 3 of the evaluation value 106, the evaluation value 108 of the specimen 4, specimen 5 It was 109.
即ち、実施形態1;2のタイヤ用スパイク1は、軽量化を実現できるとともに、氷上ブレーキ性能、氷上トラクション性能のいずれにおいても、優れた性能を発揮できることが証明された。 That is, Embodiment 1; tire spike 1 of 2, as well the weight can be realized, ice braking performance, in any of the ice traction performance was also demonstrated to be capable of excellent performance.
特に、3つの平面の境界により形成される角を有したピンを持つ試験体3のタイヤ用スパイクと比較して、平面と湾曲面と湾曲面との境界により形成される角30を有したピン3を持つ実施形態1のタイヤ用スパイクの方が、氷上ブレーキ性能、氷上トラクション性能のいずれにおいても優れていることがわかった。 In particular, as compared with the tire spike test body 3 having a pin having a corner formed by the boundaries of the three planes, having a corner 30 formed by the boundary between the plane and the curved surface and the curved surface pin towards the tire spike embodiment 1 with 3, ice braking performance, it found to be excellent in any of the ice traction. そして、角50を有した柱体2を持つ実施形態2のタイヤ用スパイクは、実施形態1のタイヤ用スパイクと比べて、氷上ブレーキ性能、氷上トラクション性能がさらに向上することがわかった。 The tire spike of the second embodiment having the columnar body 2 having a corner 50, as compared with the tire spike embodiment 1, ice braking performance was found that further improved ice traction.

実施形態3 Embodiment 3
図5に示すようなピン3Aを備えたタイヤ用スパイク1であってもよい。 It may be a tire spike 1 having a pin 3A as shown in FIG. 即ち、周方向において互いに隣り合う窪み部22と窪み部22との間に、円柱体21の他端面と周面とに跨る小窪み部32が設けられた異形柱体により形成されたピン3Aを備えたタイヤ用スパイク1である。 That is, between the recess 22 and the recess 22 adjacent to each other in the circumferential direction, a pin 3A in the small recess 32 is formed by a profiled pillar member provided to span the end surface and the peripheral surface of the cylindrical body 21 It is a tire spike 1 equipped. 尚、小窪み部32は、窪み部22よりも窪み量が小さい。 In addition, small recess 32, a small amount of depression than the recess 22. ピン3Aを形成する異形柱体の他端面23と小窪み部32の窪み面33との境界線34は、円柱体21の周面から中心軸Xに近付くように湾曲する円弧曲線のような曲線により形成される。 Boundary line 34 of the other end surface 23 of the profiled pillar body and the recess surface 33 of the small recess 32 forming a pin. 3A, curve, such as the arc curve that is curved so as to approach the central axis X from the circumferential surface of the cylindrical body 21 It is formed by. また、小窪み部32は、ピン3Aを形成する異形柱体の他端面23から柱体2の他端面20まで連続する窪み(凹部)により形成され、当該窪みの断面形状(即ち、ピン3Aの中心軸Xと直交する断面形状)は、ピン3Aの他端面23から柱体2の他端面20に渡ってどこでも同じ形状である。 Moreover, the small recess 32 is formed by the recess is continuous from the other end face 23 of the profile pillars body forming a pin 3A to the other end surface 20 of the pillar 2 (recesses), the recess cross section (ie, pin 3A sectional shape perpendicular to the center axis X) is anywhere from the other end surface 23 of the pin 3A over the other end surface 20 of the pillar 2 are the same shape.

実施形態3のタイヤ用スパイク1の場合、実施形態1と同様に、重量低減を図れるとともに投影エッジ成分Hを大きくできる。 For tire spike 1 according to the third embodiment, similarly to Embodiment 1, it is possible to increase the projected edge component H as well achieved weight reduction. また、小窪み部32を備えたことで、実施形態1と比べてピン3Aの軽量化が図れる。 Moreover, by providing the small recess 32, thereby the weight of the pin 3A as compared with the first embodiment. さらに、平面と湾曲面と湾曲面との境界により形成される角30の数を多くできるので、氷面への貫入力もより向上する。 Furthermore, it is possible to increase the number of corners 30 formed by the boundary between the plane and the curved surface and the curved surface, penetration force of the ice surface is also improved.

実施形態4 Embodiment 4
図5に示すようなピン3Bを備えたタイヤ用スパイク1であってもよい。 It may be a tire spike 1 having a pin 3B as shown in FIG. 即ち、窪み部22を3つ備え、当該3つの窪み部22が、円柱体21の周面において当該円柱体21の中心軸Xを中心として円柱体21の周方向に等角度間隔、即ち、120隔てて設けられた構成のピン3Bを備えたタイヤ用スパイク1であってもよい。 That, and a recessed portion 22 three, the three recessed portions 22, the circumferential direction at equal angular intervals of the cylindrical body 21 about the central axis X of the cylindrical body 21 in the circumferential surface of the cylindrical body 21, that is, 120 and may be a tire spike 1 having a pin 3B of the structure which is provided to be spaced. 換言すれば、ピン3Bの中心軸Xを中心としてタイヤ用スパイク1を初期状態から120回転させる毎に、ピン3Bの他端面23の形状が三角形のような同一形状となるように構成されたものである。 In other words, a tire spike 1 about the central axis X of the pin 3B from the initial state every time it is rotated 120 , the shape of the other end surface 23 of the pin 3B is configured to be the same shape as a triangle It is.

実施形態4のタイヤ用スパイク1の場合、実施形態1と同様に、重量低減を図れるとともに投影エッジ成分Hを大きくでき、しかも、角30を備えるので、氷面への貫入力も向上する。 For tire spike 1 in the fourth embodiment, similarly to Embodiment 1, it is possible to increase the projected edge component H as well achieved with the weight reduction, addition, since comprise corners 30, also improves penetration force to the ice surface. 特に、窪み部22を大きくできるので、軽量化の面で有利である。 In particular, it is possible to enlarge the recess 22, it is advantageous in terms of weight reduction.

実施形態5 Embodiment 5
実施形態3のピン3Aと実施形態2の柱体2Aとを備えた構成のタイヤ用スパイク1とすれば、実施形態1と比べて、より重量を軽減できるとともに、より引っかき力を向上できるタイヤ用スパイク1を提供できる。 If the pin 3A of Embodiment 3 and the tire spike 1 in the configuration of a pillar 2A of the second embodiment, as compared with Embodiment 1, a tire is possible reduce more weight can be improved more scratch force It can provide a spike 1.

実施形態6 Embodiment 6
また、実施形態4のピン3Bと実施形態2の柱体2Aとを備えた構成のタイヤ用スパイク1とすれば、実施形態4と比べて、より重量を軽減できるとともに、より引っかき力を向上できるタイヤ用スパイク1を提供できる。 Also, if the pin 3B of Embodiment 4 and a tire spike 1 in the configuration of a pillar 2A of the second embodiment, as compared with Embodiment 4, it is possible to reduce more weight can be improved more scratch force It can provide a spike 1 tires.

尚、実施形態5;6において、柱体2Aの他端面20と柱体側窪み部41との境界線42となる湾曲線とピン3A;3Bの他端面23と窪み部22との境界線25となる湾曲線とが中心軸Xを通る一直線と交差するように窪み部22と柱体側窪み部41とが配置された構成とすれば、柱体2Aのピン3A;3Bの角30と柱体2Aの角50との相乗効果によって氷面への貫入力が向上する。 In addition, the fifth embodiment; in 6, the other end face 20 and the pillar side the boundary line 42 of the recess 41 becomes curved line and pin 3A of pillar 2A; the boundary line 25 of the 3B other end surface 23 and the recessed portion 22 of the If and becomes curved lines and configurations in which the recessed portion 22 and the pillar side recess portions 41 so as to intersect the straight line is arranged through the center axis X, the pin 3A of the column body 2A; corners 30 of 3B and column body 2A to improve the penetration force to the ice surface of the synergistic effect of the corner 50.

尚、ピンの他端面23は、湾曲面に形成されてもよい。 The other end surface 23 of the pin may be formed on the curved surface. この場合、湾曲面と湾曲面と湾曲面との境界により形成される角を有したピンを持つタイヤ用スパイクとなり、当該角により局所的にエッジ圧が高まるので、氷面への貫入力が高まる。 In this case, it becomes spiked tires with pins having a corner formed by the boundary between the curved surface and the curved surface and the curved surface, so locally the edge pressure by the angle increases, it enhances penetration force into the ice surface .
また、ピンの他端面23と窪み部22や小窪み部32との境界線が複数の直線(円柱体21の他端面の円周から中心軸Xの方向に向けて延長する直線)により形成された構成のピンを備えたタイヤ用スパイクであってもよい。 Also, formed by the boundary line between the recessed portion 22 and the small recess 32 and the other end face 23 of the pin is more straight lines (extending in the direction of the center axis X from the circumference of the other end surface of the cylindrical body 21 linearly) The pin configuration may be a spike tire provided with a. この場合、ピンは、ピンの他端面(平面又は湾曲面)とピンの周面(円柱体21の残った周面)である湾曲面と窪み部の窪み面である平面(円柱体21の周面から中心軸Xの方向に向けて延長する平面)との境界により形成された角を備えた構成となるので、当該角は、3つの平面の境界により形成される角柱の角と比べてより鋭利となり、当該角により局所的にエッジ圧が高まるので、氷面への貫入力が高まる。 In this case, the pins, which is the other end surface (plane or curved surface) and the peripheral surface recess surfaces of the curved surface and the recessed portion is (remaining peripheral surface of cylindrical body 21) of the pin of the pin plane (circumference of the cylindrical body 21 Since construction and made with a corner formed by the boundary between the extending plane) toward the direction of the center axis X from the surface, the angle is more than the angle of the prism formed by the boundaries of the three planes it becomes sharp, so locally the edge pressure by the angle increases, penetration force of the ice surface is increased.
従って、本願発明において、窪み部22や小窪み部32は、窪み面が、円柱体21の周面から中心軸Xに近付くように窪む曲面により形成された構成の凹部、又は、円柱体21の周面から中心軸Xの方向に向けて延長する複数の平面を有した構成の凹部を意味する。 Therefore, in the present invention, recess 22 and small recess 32, recess surface, the recess of the structure formed by a curved surface recessed to approach the center axis X from the circumferential surface of the cylindrical body 21, or the cylindrical body 21 It means a recess structure having a plurality of planes extending in the direction of the center axis X from the circumferential surface of the.

また、窪み部22の数を2つとしてもよい。 In addition, it may be two the number of recess 22. この場合、窪み部22を円柱体21の周方向に等角度間隔、即ち、180隔てて設けた構成とすることが好ましい。 In this case, equal angular intervals in the circumferential direction of the recess portion 22 cylindrical body 21, ie, it is preferable to have a structure which is provided to be spaced 180 . また、窪み部22の数は1つでもよい。 The number of the recessed portion 22 may be one.
また、上記実施形態では、異形柱体の他端面23から柱体2の他端面20まで連続する窪み(凹部)により形成された窪み部22を有したピンを説明したが、窪み部22は柱体2の他端面20まで連続していなくてもよい。 In the above embodiment has described the pin having a recess 22 formed by the recess is continuous from the other end surface 23 of the profiled pillar to the other end surface 20 of the pillar 2 (concave) recess 22 posts it may not be contiguous to the other end surface 20 of the body 2.

1 タイヤ用スパイク、2 柱体、3;3A;3B ピン、 1 tire spike, two-post body, 3; 3A; 3B pin,
4 柱体の一端面、5 タイヤ、6 トレッド面、7 有底孔、 One end face of the 4-poster body, 5 tire, 6 tread surface, 7 bottomed holes,
20 柱体の他端面、21 円柱体、22 窪み部、23 ピンの他端面、 The other end face of the 20-poster body, 21 cylindrical body, 22 recess, 23 pin the other end face of,
25 境界線、32 小窪み部、X 中心軸。 25 border, 32 small recess, X central axis.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
WO2009068744A1Nov 26, 2008Jun 4, 2009Sancus OyAnti-skid stud for a tyre
WO2010098092A1 *Feb 24, 2010Sep 2, 2010Bridgestone CorporationStuddable tire
EP1798069A2Dec 13, 2006Jun 20, 2007Scason OYStud for studded tyre
JP2010095212A Title not available
JPS4636802Y1 * Title not available
JPS56146407A * Title not available
JPS58129206U * Title not available
RU2280564C1 Title not available
US20080060733 *Oct 29, 2007Mar 13, 2008Nokian Tyres PlcTire with quadrangular studs
Non-Patent Citations
Reference
1 *See also references of EP2682285A4
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
WO2014095138A1 *Oct 30, 2013Jun 26, 2014Continental Reifen Deutschland GmbhSpike
WO2014122570A1Feb 3, 2014Aug 14, 2014Pirelli Tyre S.P.A.A studded tyre and a method for improving the performance of a studded tyre
WO2015012070A1Jul 1, 2014Jan 29, 2015The Yokohama Rubber Co., Ltd.Stud pin, and pneumatic tire
Classifications
International ClassificationB60C11/16
Cooperative ClassificationB60C11/1643, B60C11/1675
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