JPS61278403A - Spike - Google Patents

Spike

Info

Publication number
JPS61278403A
JPS61278403A JP60121149A JP12114985A JPS61278403A JP S61278403 A JPS61278403 A JP S61278403A JP 60121149 A JP60121149 A JP 60121149A JP 12114985 A JP12114985 A JP 12114985A JP S61278403 A JPS61278403 A JP S61278403A
Authority
JP
Japan
Prior art keywords
spike
oxide ceramics
road surface
base part
spikes
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP60121149A
Other languages
Japanese (ja)
Inventor
Bunji Muto
武藤 文二
Yoshihiko Fujii
藤井 吉彦
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bridgestone Corp
Original Assignee
Bridgestone Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bridgestone Corp filed Critical Bridgestone Corp
Priority to JP60121149A priority Critical patent/JPS61278403A/en
Publication of JPS61278403A publication Critical patent/JPS61278403A/en
Pending legal-status Critical Current

Links

Landscapes

  • Compositions Of Oxide Ceramics (AREA)
  • Tires In General (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Abstract

PURPOSE:To obtain a lightweight spike with high resistance to wear by making the base part of the spike mainly consist of oxide ceramics and its tread part mainly consist of non-oxide ceramics and/or hard metal. CONSTITUTION:This spike 1 consists of a base part 2 whose principal component is oxide ceramics such as Al2O3, TiO2, and ZrO2 and a tread part 3 whose principal component is non-oxide ceramics such as WC, TiC, and TaC and/or hard metal formed on the tread side. In this case, since the base part 2 is porous, the junction strength between the base part 2 and tread part 3 is improved. In other words, by making the component material of the tread part 3 penetrate into the pore 2a of the base part 2, the so-called anchor effect can be actuated and the junction strength between both parts 2 and 3 can be improved sharply.

Description

【発明の詳細な説明】 [産業上の利用分野] 本発明はスノータイヤ、登山靴、ゴルフ靴などに用いら
れるスパイクに関する。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to spikes used in snow tires, mountain climbing shoes, golf shoes, etc.

[従来の技術] 積雪路面や又は凍結路面の走行に、スパイクを有するス
ノータイヤが広く用いられている。
[Prior Art] Snow tires with spikes are widely used for driving on snowy or frozen roads.

而して、従来から用いられているスパイクは、ストレー
ト状のシャンク孔内にストレート状のチップを挿入して
鑞付けされてなる。このような従来のスパイクはいずれ
も鉄系金属からなり、高密度(密度的7.9)で重量が
大きいため、■ 走行中の騒音が激しい。
The spikes conventionally used are made by inserting a straight tip into a straight shank hole and brazing it. All of these conventional spikes are made of iron-based metals, have a high density (density: 7.9), and are heavy; therefore, they make a lot of noise while driving.

(リ 路面の損傷が著しく、路面の損傷により発生する
粉塵が公害問題を惹起することもある。
(Ri) The road surface is severely damaged, and the dust generated by the damage to the road surface may cause pollution problems.

■ 燃費が悪化する。■ Fuel efficiency worsens.

等の欠点を有している。また、チップにWC−Co系合
金が使用されているため、高価でもある。
It has the following disadvantages. Furthermore, since the chip uses a WC-Co alloy, it is also expensive.

そこで、近年、金属製スパイクの欠点を解決するべく、
セラミックス製スパイクが提案されている。従来提案さ
れているセラミックス製スパイクとしては。
Therefore, in recent years, in order to solve the drawbacks of metal spikes,
Ceramic spikes have been proposed. Among the ceramic spikes that have been proposed so far.

■ 合成樹脂製フランジを有するセラミック製スパイク
、 (句 鋼製又はプラスチック製シャンクにセラミック製
チップを取り付けたスパイク、 ■ 中心部を周辺部よりも低密度、低硬度としたセラミ
ック製スパイク 等がある。
■ Ceramic spikes with synthetic resin flanges, spikes with ceramic tips attached to steel or plastic shanks, ■ Ceramic spikes with a center part that is less dense and less hard than the peripheral parts.

[発明が解決しようとする問題点] しかしながら、上記従来のセラミックス製スパイクはい
ずれも耐摩耗性が鉄系合金製のス、<イクに比べて著し
く低く、いま一つ実用性に欠けている。
[Problems to be Solved by the Invention] However, all of the above-mentioned conventional ceramic spikes have significantly lower wear resistance than steel alloy spikes, and are still lacking in practicality.

[問題点を解決するための手段] 本発明は上記従来の問題点を解決し、軽量でしかも耐摩
耗性に優れたセラミックス製スパイクを提供するもので
あって、 基体部分は酸化物セラミックスを主体とし、路面部分は
非酸化物セラミ−2クス及び/又は硬質金属を主体とす
ることを特徴とするスパイク、を要旨とするものである
[Means for Solving the Problems] The present invention solves the above conventional problems and provides a ceramic spike that is lightweight and has excellent wear resistance, the base portion being mainly made of oxide ceramics. The gist of the spike is that the road surface portion is mainly made of non-oxide ceramics and/or hard metal.

[作用] 基体が酸化物セラミックスを主成分とする焼結体で構成
されるため、鉄系スパイクに比し密度はh以下となり、
極めて軽量である。
[Function] Since the base is composed of a sintered body mainly composed of oxide ceramics, the density is less than h compared to iron-based spikes,
Extremely lightweight.

また、路面部は非酸化物セラミックス及び/又は硬質金
属を主体とするものであり、耐摩耗性が著しく向上する
Furthermore, since the road surface portion is mainly made of non-oxide ceramics and/or hard metal, wear resistance is significantly improved.

[実施例] 以下に本発明の実施例を図面を参照して詳細に説明する
[Examples] Examples of the present invention will be described in detail below with reference to the drawings.

第1図は本発明の一実施例に係るスパイク1の断面図で
ある。
FIG. 1 is a sectional view of a spike 1 according to an embodiment of the present invention.

本発明のスパイク1は、酸化物セラミックスを−L成分
とする基体部分2と、その路面部に形成された非酸化物
セラミックス及び/又は硬質金属を1次分とする路面部
分3とからなる。路面部分3の厚さdは、スパイクの使
用目的に応じて異なるが、スノータイヤ用として用いる
場合には5mm程度が好ましい。
The spike 1 of the present invention consists of a base portion 2 whose -L component is oxide ceramics, and a road surface portion 3 whose primary portion is non-oxide ceramics and/or hard metal formed on the road surface portion. The thickness d of the road surface portion 3 varies depending on the intended use of the spike, but is preferably about 5 mm when used as a snow tire.

このような本発明のスパイクは、例えば次のようにして
製造できる。まず酸化物セラミックスの原料粉末あるい
はこれにウィスカー等の無機質繊維の補強材を混合した
複合セラミックス粉末を乾式法又は泥漿を用いる湿式法
で基体形状に成型し、成型体を所望により乾燥及び/又
は仮焼した後、焼成し焼結体とする0次に、この焼結体
の路面部に非酸化物セラミックス粉末及び/又は硬質金
属粉末を用いて乾式法又は湿式法により路面形状のもの
を成型する。しかる後、所望により乾燥及び/又は仮焼
を行い、次いで焼成して基体部分2と路面部分3とを一
体とする。
Such a spike of the present invention can be manufactured, for example, as follows. First, raw material powder of oxide ceramics or composite ceramic powder mixed with inorganic fiber reinforcing material such as whiskers is molded into a base shape by a dry method or a wet method using slurry, and the molded body is dried and/or temporary as desired. After firing, it is fired to form a sintered body.Next, a road surface shape is formed using non-oxide ceramic powder and/or hard metal powder on the road surface portion of this sintered body by a dry method or a wet method. . Thereafter, drying and/or calcining is performed as desired, and then firing is performed to integrate the base portion 2 and the road surface portion 3.

なお、上記製造方法は、−例であって、本発明のスパイ
クは他の方法によって製造しても良いことは明らかであ
る。
Note that the above manufacturing method is just an example, and it is clear that the spike of the present invention may be manufactured by other methods.

本発明においては、酸化物セラミックスとしては、Au
203 、TiO2,ZrO2等が用いられる。非酸化
物セラミックスとしてはWClTiC,TaC,Cr3
C2等の炭化物系セラミックス、TiN等の窒化物系セ
ラミックスなどが用いられる。硬質金属としてはWが挙
げられる。これら非酸化物セラミックス及び/又は硬質
金属は、一種類だけ用いても良く、二種類以上併用して
も良い0例えば、W C+ Co、Cr 3 C2+ 
N i等を用いることができる。さらにCr 3C2+
 N i+アルミニウム化合物(アルミナ、窒化アルミ
ニウムなど)をも用い得る。
In the present invention, as the oxide ceramic, Au
203, TiO2, ZrO2, etc. are used. Non-oxide ceramics include WClTiC, TaC, Cr3
Carbide ceramics such as C2, nitride ceramics such as TiN, etc. are used. Examples of the hard metal include W. These non-oxide ceramics and/or hard metals may be used alone or in combination. For example, W C+ Co, Cr C2+
N i etc. can be used. Furthermore, Cr 3C2+
Ni+aluminum compounds (alumina, aluminum nitride, etc.) may also be used.

本発明において、基体部分2は多孔質とすることにより
、基体部分2と路面部分3との接合強度を向上させるこ
とができる。即ち、基体部分2が多孔質の場合には、第
1図の■部の拡大図である第2図に示す如く、具体部分
2の気孔2aに路面部分3の構成材が侵入する。そのた
め、所謂アンカー効果(投錨効果)が作用し、基体部分
2と路面部分3との接合強度が大幅に向上するのである
。このような多孔質の基体部分2としては、気孔率が2
〜20%のアルミナが最適であるが、もちろんその他の
酸化物系セラミックスであっても良い。
In the present invention, by making the base portion 2 porous, the bonding strength between the base portion 2 and the road surface portion 3 can be improved. That is, when the base portion 2 is porous, the constituent material of the road surface portion 3 enters into the pores 2a of the concrete portion 2, as shown in FIG. 2, which is an enlarged view of section 2 in FIG. Therefore, a so-called anchor effect (anchoring effect) acts, and the bonding strength between the base portion 2 and the road surface portion 3 is significantly improved. Such a porous base portion 2 has a porosity of 2.
~20% alumina is optimal, but other oxide ceramics may of course be used.

基体部分2が多孔質ではなく緻密質の場合には、第3図
に示す如く、基体部分2を厚肉筒状とし、路面部分3を
その中空部4に若干挿入するように形成することにより
、接合強度を向上させることができる。この場合、挿入
部3aを先払がり形状のものとし、中空部4の受入口を
絞った形状とすれば、路面部分3と基体部分2との連結
力はさらに高められる。
When the base portion 2 is not porous but dense, as shown in FIG. , bonding strength can be improved. In this case, if the insertion portion 3a is of a bent shape and the reception opening of the hollow portion 4 is narrowed, the connection force between the road surface portion 3 and the base portion 2 can be further increased.

本発明のスパイクlをスノータイヤ等に装着する場合に
は、第4図に示す如く、基体部分2をタイヤ本体5内に
埋め込み、路面部分3がタイヤ本体5の表面から突出す
るようにして取り付ける。
When the spikes 1 of the present invention are mounted on a snow tire or the like, the base portion 2 is embedded in the tire body 5, and the road surface portion 3 is attached so as to protrude from the surface of the tire body 5, as shown in FIG. .

このようにして装着することにより、スパイクlの先端
が積雪面6や氷結面などにくい込み、タイヤのスリップ
が防止される。また、コンクリート面からの衝撃に対し
ても優れた耐久性が発揮される。
By mounting in this manner, the tips of the spikes l become wedged in the snowy surface 6 or icy surface, thereby preventing the tire from slipping. It also exhibits excellent durability against impact from concrete surfaces.

さらに、本発明のスパイクを装着したスノータイヤは、
スパイク1が軽量であるので、路面衝突時の衝撃が小さ
く、従って路面損傷も減少される。同様の理由により、
騒音が小さくなる、あるいは燃費が向上される等の効果
が奏される。
Furthermore, the snow tire equipped with the spikes of the present invention is
Since the spike 1 is lightweight, the impact upon collision with the road surface is small, and therefore road surface damage is also reduced. For similar reasons,
Effects such as reduced noise and improved fuel efficiency can be achieved.

[効果] 以上詳述した通り、本発明のスパイクは酸化物セラミッ
クスを主成分とする基体部分と、非酸化物セラミックス
及び/又は硬質金属を主成分とする路面部分とを有する
[Effects] As detailed above, the spike of the present invention has a base portion mainly composed of oxide ceramics and a road surface portion mainly composed of non-oxide ceramics and/or hard metal.

このため極めて軽量なものとなり、スパイクタイヤとし
て用いた場合、走行中の騒音の低減、路面の損傷の防止
、燃費の向上を図れる。しかも路面部分の硬度が高いの
でスパイクの耐摩耗性が著しく向トされ、耐久性が格段
に優れたものとなる。また、製造も極めて容易で、製品
の低コスト化を図ることもできる。
Therefore, it is extremely lightweight, and when used as a spiked tire, it can reduce noise while driving, prevent damage to the road surface, and improve fuel efficiency. Moreover, since the hardness of the road surface portion is high, the wear resistance of the spikes is significantly improved, resulting in significantly superior durability. Furthermore, manufacturing is extremely easy, and the cost of the product can be reduced.

本発明のスパイクはスノータイヤ用に限られず、登山用
その他スポーツ用シューズのスパイクとしても極めて有
用である。
The spikes of the present invention are not limited to use in snow tires, but are also extremely useful as spikes in shoes for mountain climbing and other sports.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明の一実施例に係るスパイクの断面図、第
2図は第1図の■部の拡大図、第3図は本発明の他の実
施例に係るスパイクの断面図、第4図は本発明のスパイ
クをタイヤに装着した状態を示すタイヤ接地部分の断面
図である。 l・・・・・・スパイク、 ?・・・・・・基体部分、 3・・・・・・路面部分。
FIG. 1 is a cross-sectional view of a spike according to an embodiment of the present invention, FIG. 2 is an enlarged view of the section ■ in FIG. 1, and FIG. FIG. 4 is a cross-sectional view of the tire ground contact portion showing a state in which the spike of the present invention is attached to the tire. l...Spike, ? ...Base part, 3...Road surface part.

Claims (1)

【特許請求の範囲】[Claims] (1)基体部分は酸化物セラミックスを主体とし、路面
部分は非酸化物セラミックス及び/又は硬質金属を主体
とすることを特徴とするスパイク。
(1) A spike characterized in that the base portion is mainly made of oxide ceramics, and the road surface portion is mainly made of non-oxide ceramics and/or hard metal.
JP60121149A 1985-06-04 1985-06-04 Spike Pending JPS61278403A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP60121149A JPS61278403A (en) 1985-06-04 1985-06-04 Spike

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60121149A JPS61278403A (en) 1985-06-04 1985-06-04 Spike

Publications (1)

Publication Number Publication Date
JPS61278403A true JPS61278403A (en) 1986-12-09

Family

ID=14804064

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60121149A Pending JPS61278403A (en) 1985-06-04 1985-06-04 Spike

Country Status (1)

Country Link
JP (1) JPS61278403A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08187106A (en) * 1991-03-27 1996-07-23 Asics Corp Spike
JPH0958225A (en) * 1995-08-24 1997-03-04 Tsutomu Kudou Tire with changeable slide pin and tool specialized for changing

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08187106A (en) * 1991-03-27 1996-07-23 Asics Corp Spike
JPH0958225A (en) * 1995-08-24 1997-03-04 Tsutomu Kudou Tire with changeable slide pin and tool specialized for changing

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