JPH07290917A - Tire slip-proof tool - Google Patents

Abstract

PURPOSE:To improve durability in both end connection part of a chain shaped slip-proof tool body and to facilitate attaching/detaching thereof. CONSTITUTION:The tire slip-proof tool is composed of a bush chain shaped slip-proof tool body, which is fitted into a circumferential groove formed continuously in the circumferential direction of the tire tread surface, and joint fittings 29 for coupling both ends of the slip-proof device body. The joint fittings 29 are composed of a first coupling fitting 30, which is arranged on the outer side in radial of links 8, 8 on both ends facing each other inside the circumferential groove 5, a second coupling fitting 31 on the inner side thereof, while the first coupling fitting 30 is equipped with an outer base part 33 of a length exceeding the coupling pieces 26, 26 of the links 8, 8 on both ends in the circumferential direction and the second coupling fitting 31 is equipped with an inner base part 35 in the inner side of the link 8. A through-hole 34, which is opened in the radial direction at the outer side of respective circumferential direction of coupling pieces 26, 26 of links 8, 8 facing each other, is provided on the outer base part 33 and a screw hole 37 is provided on the inner base part 35 for screwing in of a coupling screw shaft 32 which is inserted into the through- hole 34.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】本発明は、耐久性に優れかつ装脱
を容易とするタイヤの防滑具に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tire slip preventer having excellent durability and being easy to put on and take off.

【０００２】[0002]

【従来の技術】従来、冬期に氷雪路面を走行するには、
ショートリンクチェーンを梯子状、又はネット状に組立
てタイヤ周面に巻付けて使用するいわゆるタイヤチェー
ンが知られている。このようなタイヤチェーンは金属を
用いて形成されているため、タイヤに装着することによ
って車両は乗心地が低下し、かつ走行騒音が増大すると
いう欠点がある。2. Description of the Related Art Conventionally, in order to run on a snowy road in winter,
A so-called tire chain in which a short link chain is assembled into a ladder shape or a net shape and wound around a tire peripheral surface is used. Since such a tire chain is made of metal, it has the drawbacks that when it is mounted on a tire, the riding comfort of the vehicle is reduced and running noise is increased.

【０００３】[0003]

【発明が解決しようとする課題】このような問題点の一
端を解決すべく、タイヤチェーンの本体に合成樹脂等、
非金属材料を用いたものも出現しているが、このもの
は、乗心地及び騒音は若干改善されたものの、その装着
の際に、Ｓ字型あるいは凹字状の極めて耐久性に劣る引
掛け金具を用いて連結されているため、走行中に引掛け
金具が外れてタイヤチェーンが脱落する危険が大きく、
グリップ力、操縦安定性を低下させる原因ともなってい
た。In order to solve one of these problems, a synthetic resin or the like is attached to the body of the tire chain.
Although a non-metallic material has also appeared, this one has a slightly improved riding comfort and noise, but when mounted, it is an S-shaped or concave-shaped hook with extremely poor durability. Because it is connected using metal fittings, there is a great risk that the hook metal fitting will come off and the tire chain will fall off while running,
It was also a cause of reduced grip and steering stability.

【０００４】しかも前記の如く梯子状に組立てたタイヤ
チェーンは、その装脱に手間を要し、取扱いを不便とす
るという問題点もある。Moreover, the tire chain assembled in the ladder shape as described above has a problem that it takes a lot of time to attach and detach the tire chain, which makes the handling inconvenient.

【０００５】本発明は、周方向溝内に装着されかつ滑り
止め用の翼板を具える防滑具本体と、この防滑具本体の
両端のリンク間を継ぎネジ軸の螺入により継ぐジョイン
ト金具とからなることを基本として、耐久性を向上で
き、かつ装脱を容易とするタイヤの防滑具の提供を目的
としている。According to the present invention, there is provided an anti-slip body which is installed in a circumferential groove and has a non-slip vane, and a joint fitting which joins links between both ends of the anti-slip body by screwing a joint screw shaft. The object of the present invention is to provide a slip preventive device for a tire, which can be improved in durability and can be easily put on and taken off.

【０００６】[0006]

【課題を解決するための手段】本発明は、タイヤのトレ
ッド面に連続して周方向に形成される周方向溝内に装着
される防滑具本体と、この防滑具本体の両端を継ぐジョ
イント金具とからなるタイヤの防滑具であって、防滑具
本体は、１ピッチを隔てる円筒状の継ぎ片により結合さ
れる内のリンクプレートを有する内のリンクと、前記円
筒状の継ぎ片内を通ることができかつ１ピッチを隔てる
ピン状の継ぎ片により結合される外のリンクプレートを
有し前記内のリンクと交互に配される外のリンクとから
なり、前記周方向溝に、両端のリンク間に間隙を有して
装着され、かつ前記トレッド面上に張出し前記リンクプ
レートと一体な滑り止め用の翼板を具える一方、ジョイ
ント金具は、周方向溝内で向き合う両端のリンクの半径
方向外側に配される第１の継ぎ金物と、内側の第２の継
ぎ金物とからなり、かつ第１の継ぎ金物は、両端のリン
クの継ぎ片を周方向にこえる長さの外の基部を具え、か
つ第２の継ぎ金物はリンク内側かつ前記外の基部と略同
長さの内の基部を具えるとともに、外の基部に、向き合
うリンクの継ぎ片の各周方向外側で半径方向に開口する
透孔を設け、内の基部に、前記透孔に向き合いこの透孔
に挿入される継ぎネジ軸を螺入するネジ孔を設けてい
る。DISCLOSURE OF THE INVENTION The present invention is directed to an anti-slip body that is mounted in a circumferential groove that is formed continuously in the circumferential direction on the tread surface of a tire, and a joint fitting that connects both ends of the anti-slip body. An anti-skid device for a tire, comprising: an anti-skid body passing through the inside of the cylindrical joint and an inner link having an inner link plate connected by cylindrical joints separated by one pitch. And having outer link plates having outer link plates that are joined by pin-like joints that are separated by 1 pitch and are arranged alternately with the inner links, between the links at both ends in the circumferential groove. And a wing plate which is mounted with a gap on the tread surface and extends over the tread surface to prevent slippage and is integral with the link plate. Placed in It comprises a first joint and an inner second joint, and the first joint comprises an outer base whose length exceeds the joints of the links at both ends in the circumferential direction, and the second joint. The joint includes an inner base having substantially the same length as the inner base of the link and the outer base, and the outer base is provided with a through hole that is opened in the radial direction at each circumferential outside of the joint of the facing link, A threaded hole is provided in the inner base portion, facing the through hole and into which a joint screw shaft inserted into the through hole is screwed.

【０００７】なお前記第１、第２の継ぎ金物は、その基
部に、互いに向き合う方向に突出する突部を、向き合う
リンク間に位置させて形成することが望ましい。[0007] It is desirable that the first and second joints are formed by forming, on their bases, projecting portions projecting in mutually facing directions between the facing links.

【０００８】[0008]

【作用】防滑具本体はタイヤの周方向溝内に装着される
ため、梯子状又はネット状をなす従来のタイヤチェーン
のようにサイドウォール部から側方に突出することがな
く、タイヤに取付けた際にも車体と干渉することを防止
できる。又防滑具本体を周方向溝の内に没入させること
が可能となり、これによって、走行時において、防滑具
本体と路面との接触を避けることができ、防滑具本体の
摩耗損傷を著減しうる。Since the main body of the anti-skid device is mounted in the circumferential groove of the tire, it is attached to the tire without protruding laterally from the sidewall portion unlike a conventional tire chain having a ladder or net shape. In this case, it is possible to prevent the interference with the vehicle body. In addition, it becomes possible to immerse the anti-skid body in the circumferential groove, which makes it possible to avoid contact between the anti-skid body and the road surface during traveling and to significantly reduce wear damage of the anti-slip body. .

【０００９】しかも周方向溝内に配される防滑具本体の
両端を継ぐジョイント金具は、該両端のリンクの半径方
向外側に配置される第１の継ぎ金物と、この第１の継ぎ
金物の外の基部に設けた透孔に挿入される継ぎネジ軸を
螺入するネジ孔を内の基部に設けた第２の継ぎ金物とか
らなり、前記継ぎネジ軸によって前記リンクの継ぎ片を
係止することにより両端のリンクを連結する。従って、
防滑具本体を周方向溝内に配することによって前記梯子
状のタイヤチェーンのようなトレッド面を横切る部材を
排除できることと相まって、継ぎネジ軸の螺入、取外し
により容易に防滑具本体を装脱でき、装脱着時の時間の
短縮を図りうるとともに、ジョイント金具は、継ぎネジ
軸の螺着と共に強固に防滑具本体の両端のリンクを連結
でき、耐久性を大巾に向上し、走行時の防滑具本体の脱
落も確実に防止できる。Moreover, the joint metal fittings that connect both ends of the anti-slip body arranged in the circumferential groove are the first metal fitting arranged on the outside in the radial direction of the link at the both ends, and the outside of the first metal fitting. And a second metal fitting having a screw hole into which a connecting screw shaft to be inserted into a through hole provided in the base portion of the link is provided, and the connecting piece of the link is locked by the connecting screw shaft. This will connect the links at both ends. Therefore,
By arranging the anti-slip body in the circumferential groove, it is possible to eliminate the member that traverses the tread surface such as the ladder-shaped tire chain, and also to easily attach and detach the anti-slip body by screwing and removing the joint screw shaft. In addition to being able to reduce the time required for attachment and detachment, the joint metal fittings can firmly connect the links at both ends of the body of the anti-slip gear together with the joint screw shaft screwing, greatly improving the durability and greatly It is possible to reliably prevent the slipper body from falling off.

【００１０】又防滑具本体はリンクプレートと一体かつ
トレッド面上に張出す翼板を具えているため、この翼板
を安定して氷盤又はつるつるの圧雪面に密着させること
ができ、氷盤上、圧雪面での牽引能力、制動能力、さら
には登坂能力及び登坂における発進能力を高め、冬期に
おいて走行の安全性を確保しうる。Further, since the main body of the anti-skid device is provided with a wing plate which is integral with the link plate and extends over the tread surface, the wing plate can be stably brought into close contact with the ice disk or the snow-slipped surface of the slippery surface. In addition, the traction ability and the braking ability on the snow-covered surface as well as the climbing ability and the starting ability on the climbing can be enhanced to ensure the safety of running in the winter.

【００１１】なお前記防滑具本体は、円筒状の継ぎ片に
より結合される内のリンクプレートを有する内のリンク
と、前記円筒状の継ぎ片を通るピン状の継ぎ片により結
合される外のリンクプレートを有し内のリンクと交互に
配される外のリンクとからなるため、この防滑具本体の
強度を、従来のショートリンクチェーンに比して高める
ことができ、小型化を可能とするとともに、その硬度を
適宜選択でき、耐摩耗性を効果的に向上しうる。The main body of the anti-skid device has an inner link having an inner link plate which is joined by a cylindrical joint piece, and an outer link which is joined by a pin-like joint piece passing through the cylindrical joint piece. Since it has a plate and outer links arranged alternately with inner links, the strength of this anti-slip body can be increased compared to the conventional short link chain, and it is possible to reduce the size. The hardness can be appropriately selected, and the wear resistance can be effectively improved.

【００１２】又請求項２の発明において、前記第１、第
２の継ぎ金物の基部に、互いに向き合う方向に突出する
突部を形成したときには、前記継ぎ片を継ぎネジ軸と突
部との間で比較的自由に移動させることができ、走行中
のタイヤの撓みに対して防滑具本体を、その脱落を防止
しつつ追従させることが出来る他、タイヤの周方向長さ
の変化に便宜に対応しうる。[0012] In the invention of claim 2, when the base portions of the first and second joints are formed with protrusions projecting in mutually facing directions, the joint piece is provided between the joint screw shaft and the protrusions. It is possible to move relatively freely with, and it is possible to make the anti-slip body follow the deflection of the running tire while preventing it from falling off, and respond to changes in the circumferential length of the tire for convenience You can.

【００１３】[0013]

【実施例】以下本発明の一実施例をタイヤが氷雪路用の
スパイクレスタイヤである場合を例にとり、図面に基づ
き説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings by taking a case where the tire is a spikeless tire for ice and snow roads as an example.

【００１４】図において本発明のタイヤの防滑具３は、
タイヤ２のトレッド面４に連続して周方向に形成される
周方向溝５内に装着される防滑具本体７と、この防滑具
本体７の両端を継ぐジョイント金具２９とからなる。In the figure, a slip preventer 3 for a tire according to the present invention is
The tire 2 includes an anti-slip body 7 that is mounted in a circumferential groove 5 that is formed continuously in the circumferential direction on the tread surface 4 of the tire 2, and joint fittings 29 that connect both ends of the anti-slip body 7.

【００１５】タイヤ２は、本実施例では、氷雪路用のス
タッドレスタイヤとして形成され、図１、２に示すよう
に、前記トレッド面４を形成するトレッド部１２の両端
からタイヤ半径方向内方にのびるサイドウォール部１
３、１３と、該サイドウォール部１３、１３の半径方向
内端に位置するビード部１４、１４とを有する空気入り
タイヤとして形成される。又タイヤ２は、トレッド部１
２からサイドウォール部１３を通りビード部１４のビー
ドコア１５の周りを折返すトロイド状のカーカス１６
と、その半径方向外側かつトレッド部１２の内部に配さ
れるベルト層１７とを具える。In this embodiment, the tire 2 is formed as a studless tire for ice and snow roads. As shown in FIGS. 1 and 2, the tire 2 is located radially inward from both ends of the tread portion 12 forming the tread surface 4. Side wall part 1 which extends
It is formed as a pneumatic tire having 3, 13 and bead portions 14, 14 located at the inner ends of the sidewall portions 13, 13 in the radial direction. Also, the tire 2 has a tread portion 1
A toroidal carcass 16 that passes from 2 to the sidewall portion 13 and folds back around the bead core 15 of the bead portion 14.
And a belt layer 17 disposed on the outer side in the radial direction and inside the tread portion 12.

【００１６】前記カーカス１６は、本実施例では２枚の
カーカスプライからなり、このカーカスプライは、カー
カスコードをタイヤ赤道Ｃに対して本実施例では８０°
〜９０°の角度で配列し、かつトッピングゴムで被覆し
たいわゆるラジアル又はセミラジアル構造のシート体を
なし、又カーカスコードとしてナイロン、ポリエステ
ル、レーヨン、芳香族ポリアミド等の有機繊維コード又
はスチールコードが採用される。In the present embodiment, the carcass 16 is composed of two carcass plies. In this carcass ply, the carcass cord is 80 ° in this embodiment with respect to the tire equator C.
A so-called radial or semi-radial structure sheet body arranged at an angle of up to 90 ° and covered with a topping rubber is used, and as a carcass cord, an organic fiber cord or steel cord such as nylon, polyester, rayon or aromatic polyamide is adopted. To be done.

【００１７】前記ベルト層１７は、本実施例では２枚の
ベルトプライからなり、これらのベルトプライは、ナイ
ロン、ポリエステル、レーヨン、芳香族ポリアミド等の
有機繊維コード、又はスチールコードをプライ間で互い
に交差する向きに配列している。In the present embodiment, the belt layer 17 is composed of two belt plies, and these belt plies are made of nylon, polyester, rayon, aromatic polyamide or other organic fiber cords or steel cords, and the plies are mutually connected. Arranged in the direction to intersect.

【００１８】又トレッド部１２の前記ベルト層１７の半
径方向外側かつトレッド面４を形成するトレッドゴム１
９にあっては、本実施例ではタイヤ半径方向内側に位置
するベースゴム１９Ａと、その外側に配されるキャップ
ゴム１９Ｂとからなり、キャップゴム１９Ｂには、例え
ば−５℃においてＪＩＳＡ硬度が５５〜６１度の軟質の
ゴムが用いられ氷路面との粘着摩擦力を大として氷雪路
上の走行性能を高めている。Further, the tread rubber 1 forming the tread surface 4 on the outer side in the radial direction of the belt layer 17 of the tread portion 12.
In the present embodiment, in No. 9, it comprises a base rubber 19A located on the inner side in the tire radial direction and a cap rubber 19B arranged on the outer side thereof. The cap rubber 19B has a JIS A hardness of 55 at -5 ° C, for example. A soft rubber of up to 61 degrees is used to increase the adhesive friction with the icy road surface to improve the running performance on the icy and snowy road.

【００１９】前記ベースゴム１９Ａは、キャップゴム１
９Ｂとして前記した如く軟質のゴムを用いたことに起因
するパターン剛性の低下を補うため、−５℃におけるＪ
ＩＳＡ硬度を６５〜７０度とした硬質のゴムを用いて形
成している。The base rubber 19A is a cap rubber 1
In order to compensate for the decrease in pattern rigidity due to the use of soft rubber as described above as 9B, J at -5 ° C is used.
It is formed by using a hard rubber having an ISA hardness of 65 to 70 degrees.

【００２０】トレッド面４には、広巾の周方向溝５が、
本実施例ではタイヤ赤道Ｃ上を周方向に連続して形成さ
れ、この周方向溝５とトレッド縁Ｅとの間には、多数の
横パターン溝Ｘ、縦パターン溝Ｙが設けられる。トレッ
ド面４にはこれらの縦、横のパターン溝Ｙ、Ｘ、トレッ
ド縁Ｅ、Ｅ及び周方向溝５によって囲まれた多数のブロ
ックＢ…が形成され、これにより軟らかい雪上を走行す
る際におけるグリップ力を高めている。A wide circumferential groove 5 is formed on the tread surface 4,
In this embodiment, the tire is formed continuously on the equator C in the circumferential direction, and between the circumferential groove 5 and the tread edge E, a large number of lateral pattern grooves X and vertical pattern grooves Y are provided. A large number of blocks B ... Enclosed by these vertical and horizontal pattern grooves Y and X, tread edges E and E, and circumferential grooves 5 are formed on the tread surface 4, so that grip when traveling on soft snow is formed. I am increasing my strength.

【００２１】又ブロックＢには、その外周面に、周方向
に対して交わる向きに配されるサイピング２０が施さ
れ、氷路面における摩擦抵抗を高めている。Further, the block B is provided on its outer peripheral surface with sipings 20 arranged in a direction intersecting with the circumferential direction to enhance the frictional resistance on the ice road surface.

【００２２】なお、前記周方向溝５の溝底５Ａには、該
溝底５Ａから凹む凹部６が周方向に隔設される。The groove bottom 5A of the circumferential groove 5 is provided with a recess 6 which is recessed from the groove bottom 5A in the circumferential direction.

【００２３】前記防滑具本体７は、本実施例ではスチー
ルからなる金属材を用いて形成されるとともに、図４に
示すように、内のリンク２７…と外のリンク２４…とを
交互に配している。In the present embodiment, the anti-skid body 7 is made of a metal material made of steel, and as shown in FIG. 4, inner links 27 ... And outer links 24 ... Are alternately arranged. is doing.

【００２４】前記内のリンク２７は、１ピッチＰを隔て
かつタイヤ軸方向にのびる一対の円筒状の継ぎ片２６、
２６により周方向両端部で結合される一対の内のリンク
プレート２５、２５を有する。The inner link 27 is formed by a pair of cylindrical joint pieces 26 that are separated by one pitch P and extend in the tire axial direction.
It has a pair of inner link plates 25, 25 joined at both ends in the circumferential direction by 26.

【００２５】又前記外のリンク２４は、前記円筒状の継
ぎ片２６内を通ることができかつ１ピッチＰを隔てる一
対のピン状の継ぎ片２３、２３により周方向両端部で結
合される一対の外のリンクプレート２２、２２を有す
る。The outer link 24 is a pair of pin-shaped joint pieces 23, 23 that can pass through the cylindrical joint piece 26 and are separated by one pitch P, and are connected at both ends in the circumferential direction. Outer link plates 22, 22.

【００２６】これらの内、外のリンク２７…、２４…
は、交互に組合わせて結合され、一連のいわゆるブシュ
チェーンからなる前記防滑具本体７を形成する。Inside and outside of these links 27 ..., 24 ...
Are joined in an alternating combination to form the anti-skid body 7 consisting of a series of so-called bush chains.

【００２７】なお前記防滑具本体７は、前述の外のリン
クプレート２２及び内のリンクプレート２５を例えば強
靭鋼など引張り強さの高い鋼を用いてかつ必要により焼
入、焼戻を施すことによりチェーンの強さを高めるとと
もに、ピン状の継ぎ片２３及び円筒状の継ぎ片２６につ
いては表面硬化処理を行い表面硬度を高くし、両者の接
触面圧を高めている。このように防滑具本体７を構成す
る鋼種と、その熱処理を適宜選択することにより、その
強度及び耐摩耗を保持してより小型化することが出来
る。又本実施例では、防滑具本体７の両端のリンク８、
８として前記内のリンク２７、２７を用いている。この
リンク８、８を前記内のリンク２４、２４にすることも
勿論可能である。The slipper main body 7 is obtained by quenching and tempering the outer link plate 22 and the inner link plate 25 using a steel having a high tensile strength such as a tough steel. While increasing the strength of the chain, the pin-shaped joint piece 23 and the cylindrical joint piece 26 are subjected to a surface hardening treatment to increase the surface hardness and increase the contact surface pressure between them. In this way, by appropriately selecting the steel type constituting the anti-slip body 7 and the heat treatment thereof, the strength and wear resistance can be maintained and the size can be further reduced. In addition, in this embodiment, the links 8 at both ends of the anti-skid body 7,
The above-mentioned links 27, 27 are used as 8. Of course, the links 8 and 8 may be the links 24 and 24 described above.

【００２８】又防滑具本体７は、その外のリンクプレー
ト２２、又は内のリンクプレート２５に、本実施例では
内のリンクプレート２５に、図７に示すように、周方向
溝５内に装着される状態において、周方向溝５の前記凹
部６に嵌まり合う突起３９を下設している。この突起３
９は、一連に連なるチェーンに一か所のみ設けてもよ
く、又凹部６…の設置位置に合わせて複数個所設けても
よい。The antiskid body 7 is attached to the outer link plate 22 or the inner link plate 25, in the present embodiment, the inner link plate 25, and in the circumferential groove 5 as shown in FIG. In this state, the projection 39 that fits into the recess 6 of the circumferential groove 5 is provided. This protrusion 3
The chain 9 may be provided at only one place on the chain connected in series, or may be provided at a plurality of places depending on the installation positions of the recesses 6 ...

【００２９】前記突起３９が周方向溝５の凹部６と係合
することによって、防滑具本体７とタイヤ２との周方向
のずれを防止でき、タイムロスを生じることなく応答性
よく氷結面、圧雪面をグリップすることが出来る。By engaging the projection 39 with the concave portion 6 of the circumferential groove 5, it is possible to prevent the slippery body 7 and the tire 2 from being displaced in the circumferential direction, and the icing surface and the compressed snow can be responsively with no time loss. You can grip the surface.

【００３０】なおタイヤ２に周方向溝５と接続する横パ
ターン溝Ｘがある場合には、防滑具本体７の外のリンク
プレート２２又は内のリンクプレート２５から側方に張
出す突片を設けるとともに、この突片を横パターン溝Ｘ
に係合させて防滑具本体７のずれを防ぐことも出来る。When the tire 2 has a lateral pattern groove X which is connected to the circumferential groove 5, a protrusion protruding laterally from the outer link plate 22 or the inner link plate 25 of the anti-skid body 7 is provided. At the same time, attach this protrusion to the horizontal pattern groove X.
It is also possible to prevent the slippery body 7 from slipping off by engaging with.

【００３１】防滑具本体７は、前記トレッド面４上に張
出す滑り止め用の翼板９を具える。翼板９は、図３〜５
に示すように本実施例では外のリンク２４の前記向き合
う外のリンクプレート２２、２２の各上端から立上がる
立片４０、４０を介してタイヤ軸方向にそれぞれ水平に
張出す一対の鋼製板体の張出し片４１、４１と、この２
つの張出し片４１、４１を跨がり載置される弾性板４２
とからなる。The anti-slip body 7 is provided with a non-slip wing 9 extending over the tread surface 4. The vane 9 is shown in FIGS.
In this embodiment, as shown in FIG. 5, a pair of steel plates horizontally extended in the axial direction of the tire via standing pieces 40, 40 rising from the upper ends of the outer link plates 22, 22 of the outer link 24 facing each other. Body overhanging pieces 41, 41 and this 2
Elastic plate 42 that is placed across one overhanging piece 41
Consists of.

【００３２】又前記防滑具本体７が周方向溝５内に装着
されることによって、前記張出し片４１は、トレッド面
４上に載置される。By mounting the slipper main body 7 in the circumferential groove 5, the overhanging piece 41 is placed on the tread surface 4.

【００３３】このような翼板９は、本実施例では、２ピ
ッチ毎、即ち各外のリンク２４毎に設けているが、翼板
９の取付けは本例に制約されることなく、間隔を本例よ
りも長くすることが出来、又内のリンク２７に翼板を設
けることによって、翼板９の取付け間隔を短くすること
も出来る。In the present embodiment, such blades 9 are provided for every two pitches, that is, for each outer link 24. However, the attachment of the blades 9 is not limited to this example, and the intervals are set. It is possible to make it longer than this example, and by providing the inner link 27 with a blade, it is possible to shorten the mounting interval of the blade 9.

【００３４】前記弾性板４２はウレタンゴム又はＪＩＳ
Ａ硬度が７０〜９５度の硬質のゴムによって形成され、
圧縮力に耐えうるようゴム厚は２．０mm以上とすること
が好ましい。The elastic plate 42 is made of urethane rubber or JIS.
A hardness is formed by a hard rubber of 70 to 95 degrees,
The rubber thickness is preferably 2.0 mm or more so as to withstand the compressive force.

【００３５】前記翼板９には、滑り止め片１０が取付け
られる。又滑り止め片１０は、本実施例ではスパイクピ
ン１１として形成される。A non-slip piece 10 is attached to the blade 9. The anti-slip piece 10 is formed as a spike pin 11 in this embodiment.

【００３６】スパイクピン１１は、本実施例では、図３
に示すように、皿頭状に形成した下端部１１Ａと、この
下端部１１Ａの上方に周面に雄ねじを螺刻した胴部１１
Ｂと、胴部１１Ｂの上方に連設され先端が鋭な円錐状を
なす先端部１１Ｃからなる。又スパイクピン１１は、超
硬チップを先端に設け残余はスチールによって形成して
いる。In the present embodiment, the spike pin 11 is shown in FIG.
As shown in FIG. 11, a lower end 11A formed in a dish head shape, and a body 11 having a male screw threaded on the peripheral surface above the lower end 11A.
B and a tip portion 11C which is continuously provided above the body portion 11B and has a sharp conical tip. Further, the spike pin 11 is provided with a cemented carbide tip at the tip and the rest is made of steel.

【００３７】他方、張出し片４１には、前記スパイクピ
ン１１が通る孔４４が透設され、該張出し片４１下面に
は、スパイクピン１１の下端部１１Ａが張出し片４１下
面と略面一となり挿入しうるよう皿面取が施される。又
弾性板４２には、スパイクピン１１の胴部１１Ｂが挿通
しうるピン孔４５を前記張出し片４１の孔４４と位置合
わせのうえ穿設される。On the other hand, the overhanging piece 41 is provided with a hole 44 through which the spike pin 11 passes, and the lower end 11A of the spike pin 11 is inserted into the lower surface of the overhanging piece 41 so as to be substantially flush with the lower surface of the overhanging piece 41. Plate chamfering is performed so that it can be done. Further, the elastic plate 42 is provided with a pin hole 45 through which the body portion 11B of the spike pin 11 can be inserted while being aligned with the hole 44 of the projecting piece 41.

【００３８】スパイクピン１１は、張出し片４１の孔４
４及び弾性板４２のピン孔４５に下方から挿入し、かつ
胴部１１Ｂの雄ネジに螺合するナット４６を用いて張出
し片４１と弾性板４２とを固着することにより前記翼板
９が形成され、しかも先端部１１Ｃは、防滑具本体７を
周方向溝５内に装着した状態において、トレッド面４か
ら半径方向外向きに突出する。The spike pin 11 has a hole 4 in the overhanging piece 41.
4 and the elastic plate 42 are inserted into the pin hole 45 from below, and the wing plate 9 is formed by fixing the overhanging piece 41 and the elastic plate 42 using a nut 46 that is screwed into the male screw of the body portion 11B. In addition, the tip portion 11C projects outward in the radial direction from the tread surface 4 in a state where the anti-slip body 7 is mounted in the circumferential groove 5.

【００３９】このように本実施例では、スパイクピン１
１をナット４６を用いて翼板９に取付けているため、ス
パイクピン１１の損傷に際して簡易かつ迅速にその交換
をなしうる。As described above, in this embodiment, the spike pin 1
Since 1 is attached to the blade 9 using the nut 46, the spike pin 11 can be replaced easily and quickly when it is damaged.

【００４０】なお、滑り止め片１０としては、前記スパ
イクピン１１の他、先端に複数の山部を並べて鋸歯状に
形成するとともに、その滑り止め片を、前記翼板９に接
着剤等を用いて一体に固着して取付けてもよい。As the non-slip piece 10, in addition to the spike pin 11, a plurality of peaks are arranged at the tip to form a sawtooth shape, and the non-slip piece is used for the blade 9 with an adhesive or the like. It may be fixed and attached integrally.

【００４１】前記ジョイント金具２９は、図５、図６に
示すように、前記周方向溝５内で間隙Ｇを隔てて向き合
う両端のリンク８、８、本実施例では内のリンク２７、
２７の半径方向外側に配される第１の継ぎ金物３０と、
内のリンク２７、２７の半径方向内側に配される第２の
継ぎ金物３１とからなるとともに、第１、第２の継ぎ金
物３０、３１は、継ぎネジ軸３２を有するボルト４９に
よって強固に連結される。As shown in FIGS. 5 and 6, the joint fitting 29 has links 8 and 8 at both ends facing each other with a gap G in the circumferential groove 5, and an inner link 27 in this embodiment.
A first joint 30 arranged radially outside of 27,
A second joint 31 arranged radially inside the inner links 27, 27, and the first and second joints 30, 31 are firmly connected by a bolt 49 having a joint screw shaft 32. To be done.

【００４２】前記第１の継ぎ金物３０は、前記間隙Ｇの
周方向長さよりも長くかつ両端の前記内のリンク２７、
２７の向き合う各円筒状の継ぎ片２６、２６を周方向に
こえる長さを有するとともに該内のリンク２７、２７の
各内のリンクプレート２５…の半径方向外縁に載置され
る直方体状の外の基部３３と、この外の基部３３の周方
向中央に半径方向外方に向かって突設された膨出部５０
とからなる。The first metal joint 30 is longer than the circumferential length of the gap G and has the inner links 27 at both ends.
A rectangular parallelepiped outer member having a length that exceeds the cylindrical joint pieces 26, 26 facing each other in the circumferential direction and is placed on the outer edge in the radial direction of the link plate 25 in each of the links 27, 27 therein. Of the base 33, and a bulging portion 50 protruding outward in the radial direction at the center of the outer base 33 in the circumferential direction.
Consists of.

【００４３】又前記外の基部３３には、向き合う内のリ
ンク２７、２７の円筒状の継ぎ片２６、２６の各周方向
外側で半径方向に開口する透孔３４…が、前記膨出部５
０の周方向両側において２つずつ開穿されている。Further, in the outer base portion 33, through holes 34, which are opened in the radial direction on the outer sides in the circumferential direction of the cylindrical joint pieces 26, 26 of the inner links 27, 27 facing each other, are formed.
Two perforations are made on both sides in the circumferential direction of 0.

【００４４】なお透孔３４は、六角穴付ボルト状の前記
ボルト４９のボルト頭４９Ａを没入させる大径の孔部３
４Ａと、このボルト４９のボルト頭４９Ａからのびる円
柱状の係止部４９Ｂを通す小径の孔部３４Ｂとからなる
とともに、該ボルト４９の係止部４９Ｂ先端には、該係
止部４９Ｂよりも小径の前記継ぎネジ軸３２が一体に設
けられる。The through hole 34 has a large diameter hole 3 into which the bolt head 49A of the bolt 49 having the shape of a hexagon socket is inserted.
4A and a small diameter hole 34B through which a cylindrical locking portion 49B extending from the bolt head 49A of the bolt 49 is inserted, and at the tip of the locking portion 49B of the bolt 49, the locking portion 49B has a smaller diameter than the locking portion 49B. The joint screw shaft 32 having a small diameter is integrally provided.

【００４５】又前記第２の継ぎ金物３１は、前記両端の
内のリンク２７、２７の各内のリンクプレート２５…の
半径方向内縁に当接しかつ前記外の基部３３と略同長さ
の直方体状の内の基部３５と、この内の基部３５の周方
向中央で半径方向外方に突設されるとともに向き合う内
のリンク２７、２７間の前記間隙Ｇに位置する突部３６
とからなる。Further, the second joint 31 is in contact with the radially inner edges of the link plates 25 in each of the links 27, 27 at the both ends, and is a rectangular parallelepiped having substantially the same length as the outer base 33. The inner base portion 35 and a protrusion portion 36 that is provided in the gap G between the inner links 27, 27 that protrude radially outward at the circumferential center of the inner base portion 35 and that face each other.
Consists of.

【００４６】従って本実施例では第１、第２の継ぎ金物
３０、３１は、内の基部３５のみに、外の基部３３に向
かって突出する突部３６を、向き合うリンク８、８間に
位置させて形成している。なお内、外の基部３５、３３
に互いに向き合う方向に突出する突部を夫々形成しても
よく、又外の基部３３のみに、内の基部３５に向かって
突出する突部を形成してもよい。Therefore, in the present embodiment, the first and second joints 30 and 31 have the protrusions 36 projecting toward the outer base 33 only on the inner base 35 and located between the facing links 8 and 8. It is formed. The inner and outer bases 35, 33
The protrusions may be formed so as to protrude in the directions facing each other, or only the outer base 33 may be formed with the protrusion protruding toward the inner base 35.

【００４７】又前記内の基部３５には、前記透孔３４…
に向き合いこの透孔３４…に挿入される前記継ぎネジ軸
３２を螺入するネジ孔３７…が、前記突部３６の周方向
両側で２つずつ刻設されている。In the inner base portion 35, the through holes 34 ...
Two screw holes 37, which face each other and into which the joint screw shaft 32 is inserted and which are inserted into the through holes 34, are formed on the both sides of the protrusion 36 in the circumferential direction.

【００４８】第１、第２の継ぎ金物３０、３１は、前記
ボルト４９、４９を用いて強固に連結されるとともに、
両端の前記内のリンク２７、２７の各円筒状の継ぎ片２
６、２６は、該ボルト４９、４９の前記係止部４９Ｂ、
４９Ｂと第２の継ぎ金物３１の前記突部３６との間で抜
脱不能に拘束され、これにより防滑具本体７の両端は連
結される。The first and second joints 30, 31 are firmly connected using the bolts 49, 49, and
Cylindrical joint pieces 2 of the inner links 27, 27 at both ends
6, 26 are the locking portions 49B of the bolts 49, 49,
49B and the projecting portion 36 of the second joint 31 are constrained so that they cannot be pulled out, so that both ends of the anti-slip body 7 are connected.

【００４９】このように防滑具本体７の両端を、高強度
のジョイント金具２９とボルト４９、４９とを用いて連
結しているため、連結部における耐久性を大きく高める
ことができ、防滑具本体７の万一の脱落を防止しうると
ともに、ボルト４９、４９の螺着、取外しによって防滑
具本体７を容易に装脱でき、装脱時の時間短縮を図りう
る。Since both ends of the anti-skid body 7 are connected using the high-strength joint fitting 29 and the bolts 49, 49 in this manner, the durability of the connecting portion can be greatly improved, and the anti-skid body can be greatly improved. The slippery body 7 can be easily removed by screwing and removing the bolts 49, 49, and the time required for the removal can be shortened.

【００５０】さらに両端の内のリンク２７、２７の前記
円筒状の継ぎ片２６、２６は、前記係止部４９Ｂ、４９
Ｂと突部３６との間の範囲において比較的自由に移動し
うるため、走行中のタイヤ２の撓みに起因する周方向長
さの変動に対応して防滑具本体７を追従させることが出
来る。Further, the cylindrical joint pieces 26, 26 of the links 27, 27 on both ends are provided with the engaging portions 49B, 49.
Since it is possible to move relatively freely in the range between B and the protrusion 36, it is possible to make the anti-slip body 7 follow the fluctuation of the circumferential length due to the bending of the tire 2 during traveling. .

【００５１】又本実施例では、前記透孔３４…、ネジ孔
３７…を、前記膨出部５０、突部３６の周方向両側に複
数、すなわち２つずつ設けているため、タイヤ２の周方
向長さに応じて近離する防滑具本体７の両端間の間隙Ｇ
に対応して、この透孔３４…、ネジ孔３７…の選択によ
りボルト４９、４９間の距離を調整して該両端を便宜に
連結でき、使い勝手を高めうる。Further, in this embodiment, a plurality of through holes 34, screw holes 37, ... Are provided on both sides in the circumferential direction of the bulging portion 50 and the projecting portion 36, that is, two each, so that the circumference of the tire 2 is provided. The gap G between the both ends of the anti-slip body 7 that moves closer according to the direction length
Corresponding to the above, the distance between the bolts 49, 49 can be adjusted by selecting the through hole 34, the screw hole 37, and the both ends can be conveniently connected, and the usability can be improved.

【００５２】さらに前記膨出部５０は、前記ボルト４９
のボルト頭４９Ａを路面に接地させない作用を有すると
ともに、前記外の基部３３内面に前記突部３６の外面が
当接する凹部５１を設けかつ前記膨出部５０に開穿した
透孔５０Ａを通る六角穴付ボルトなどのボルト５２を突
部３６に設けたネジ孔５３に螺着させることにより、ジ
ョイント金具２９の耐久性をより一層向上しうる。なお
このとき前記ボルト５２のボルト頭５２Ａを、前記スパ
イクピン１１と同様に半径方向外向きに突出させて滑り
止め用のピン５４を形成するようにしてもよい。Further, the bulging portion 50 is provided with the bolt 49.
Has a function of not grounding the bolt head 49A to the road surface, a concave portion 51 with which the outer surface of the protrusion 36 abuts on the inner surface of the outer base portion 33, and a hexagon passing through the through hole 50A opened in the bulging portion 50. The durability of the joint fitting 29 can be further improved by screwing the bolt 52 such as a bolt with a hole into the screw hole 53 provided in the protrusion 36. At this time, the bolt head 52A of the bolt 52 may be projected outward in the radial direction similarly to the spike pin 11 to form the anti-slip pin 54.

【００５３】なお前記両端のリンク８、８の一方又は両
方を、図８に示すように、前記外のリンク２４とした場
合には、前記ピン状の継ぎ片２３がジョイント金具２９
によって係止される。When one or both of the links 8 at both ends are the outer links 24 as shown in FIG. 8, the pin-shaped joint piece 23 is the joint fitting 29.
Locked by.

【００５４】又前記突部３６の外面は、図８に示すよう
に、前記外の基部３３内面と接しなくてもよい。The outer surface of the projection 36 may not be in contact with the inner surface of the outer base 33, as shown in FIG.

【００５５】さらに前記内の基部３５が嵌入しうる凹部
を、前記凹部６と同様に、周方向溝５の溝底５Ａに凹設
しておくことが、防滑具本体７を該溝底５Ａに密着させ
てその安定性、耐久性を増大させる上で好ましい。Further, a recess into which the inner base portion 35 can be fitted is formed in the groove bottom 5A of the circumferential groove 5 in the same manner as the recess 6, so that the slipper main body 7 is formed in the groove bottom 5A. It is preferable in that they are brought into close contact with each other to increase their stability and durability.

【００５６】然して、タイヤ２を装着した車両は、ドラ
イ路面、又は平坦な雪上を走行するときには、タイヤの
防滑具３を装着することなく、タイヤ２のみで走行す
る。従って、トレッド面４から翼板９及び滑り止め片１
０が突出せず路面を損傷せずかつ走行安定性、乗心地を
保持しつつ、又金属音を発することなく静かに走行する
ことが出来る。However, when the vehicle equipped with the tire 2 travels on a dry road surface or on flat snow, the vehicle runs only on the tire 2 without mounting the anti-skid 3 of the tire. Therefore, from the tread surface 4 to the vane 9 and the slip prevention piece 1.
0 does not project, does not damage the road surface, maintains running stability and riding comfort, and can run quietly without producing metallic noise.

【００５７】この車両が氷結路面又は圧雪路面を走行す
るときにおいて、本実施例のタイヤの防滑具３を装着す
る。When this vehicle runs on an icy road surface or a snow-covered road surface, the anti-skid device 3 of the tire of this embodiment is mounted.

【００５８】装着に際して、タイヤの防滑具３は、いわ
ゆるブシュチェーンからなる防滑具本体７を周方向溝５
内に装着するものであるため、梯子状又はネット状に構
成された従来のタイヤチェーンに比して装着が簡易かつ
精度よく取付けられる。又前記ジョイント金具２９を用
いているため、装脱を容易とし、かつ連結部における耐
久性を高めうる。At the time of mounting, the anti-skid device 3 of the tire is mounted on the anti-skid device body 7 made of a so-called bush chain in the circumferential groove 5.
Since it is mounted inside, it can be mounted easily and accurately as compared with a conventional tire chain configured in a ladder shape or a net shape. Further, since the joint fitting 29 is used, it can be easily attached and detached and the durability of the connecting portion can be improved.

【００５９】又タイヤ２にタイヤの防滑具３を装着した
車両は、氷結路面又はつるつるの圧雪路を走行するに際
して、滑り止め片１０の先端部が氷結路面又は圧雪路面
に喰い込み牽引力及び制動力が高まり、登坂時、さらに
は登坂での発進する際にあっても滑りが生じることなく
確実な走行及び発進がなしうる。Further, in a vehicle in which the tire anti-slip member 3 is mounted on the tire 2, when the vehicle runs on an icy road surface or a slippery snowy road, the tip of the anti-slip piece 10 digs into the icy road surface or the snowy snowy road surface to pull the traction force and the braking force. As a result, slipping does not occur even when starting uphill, or even when starting uphill, and reliable running and starting can be achieved.

【００６０】しかも本例のように防滑具本体７に突起３
９を設けることによって、この突起３９が周方向溝５の
前記凹部６と係合しタイヤ２が空転することなくかつ応
答性よく安全な走行、発進をすることが出来るのであ
る。Moreover, as in this example, the protrusions 3 are formed on the body 7 of the anti-skid device.
By providing 9, the protrusion 39 engages with the concave portion 6 of the circumferential groove 5 and the tire 2 does not run idly, and responsiveness and safe running and starting can be performed.

【００６１】なお前記内、外のリンク２７、２４を構成
する各部材について、例えば有機、無機繊維を配合した
強化合成樹脂などの合成樹脂材及び銅合金、アルミ合金
などの非鉄金属材を採用することも出来る。For each member constituting the inner and outer links 27, 24, for example, a synthetic resin material such as a reinforced synthetic resin mixed with organic or inorganic fibers and a non-ferrous metal material such as a copper alloy or an aluminum alloy are adopted. You can also do it.

【００６２】[0062]

【具体例】タイヤサイズが１６５Ｒ１３であり、かつ図
１、２に示す構成を有するスタッドレスタイヤに、図３
〜５に示す構成を有しかつ表１に示す寸法からなるタイ
ヤの防滑具を装着し、ＪＡＴＭＡ４３２（１９９２）の
試験方法に従いテストした。そのテスト結果をＪＡＴＭ
Ａに定める規定値と対比して示す。SPECIFIC EXAMPLE A studless tire having a tire size of 165R13 and having the structure shown in FIGS.
The anti-slip shoes for tires having the configurations shown in FIGS. 5 to 5 and having the dimensions shown in Table 1 were mounted and tested according to the test method of JATMA432 (1992). The test result is JATM
It is shown in comparison with the prescribed value specified in A.

【００６３】[0063]

【表１】 [Table 1]

【００６４】[0064]

【表２】 [Table 2]

【００６５】テストの結果、ＪＡＴＭＡに定める規定値
を達成しており、又その他の走行性能を維持しているこ
とが確認できた。As a result of the test, it was confirmed that the specified value specified in JATMA was achieved and that other running performance was maintained.

【００６６】[0066]

【発明の効果】叙上の如く本発明のタイヤの防滑具は、
周方向溝内に装着されかつ内、外のリンクを交互に配し
た防滑具本体の両端のリンクの継ぎ片を、ジョイント金
具の第１、第２の継ぎ金物を結合する継ぎネジ軸によっ
て係止し、該両端のリンクを連結するため、この連結部
における耐久性を従来のＳ字型あるいは凹字型の引掛け
金具を用いるものに比して大巾に向上でき、防滑具本体
の脱落を確実に防止しうるとともに、前記継ぎネジ軸の
取付け、取外しにより容易に防滑具本体の両端のリンク
を連結、解放でき、装脱の際の時間を短縮し、使い勝手
を高めうる。As described above, the anti-skid device for a tire of the present invention is
The joint pieces of the links at both ends of the slip preventer body, which are mounted in the circumferential groove and in which inner and outer links are alternately arranged, are locked by a joint screw shaft that joins the first and second joint metal fittings of the joint fitting. However, since the links at both ends are connected, the durability at this connecting portion can be greatly improved as compared with the conventional S-shaped or concave hook metal fittings, and the slipper main body does not fall off. It is possible to surely prevent it, and to easily connect and disconnect the links at both ends of the body of the anti-skid device by attaching and detaching the joint screw shaft, thereby shortening the time of attachment / detachment and improving usability.

【００６７】又請求項２の発明において、第１、第２の
継ぎ金物の基部に、互いに向き合う方向に突出する突部
を、向き合うリンク間に位置させて形成したときには、
前記継ぎネジ軸と突部との間で、走行中のタイヤの撓み
による周方向長さに応じて前記両端のリンクの継ぎ片が
移動できる範囲を防滑具本体のタイヤからの脱落を阻止
する程度に規制でき、走行安定性を向上しうるととも
に、突部によって第１、第２の継ぎ金物の外、内の基部
間に間隙を形成でき、両端のリンクの該外、内の基部間
への挿入を容易とする。Further, in the invention of claim 2, when the projecting portions projecting in mutually facing directions are formed on the base portions of the first and second joints so as to be located between the facing links,
Between the joint screw shaft and the projection, the extent to which the joint pieces of the links at both ends can move within the range in which the joint pieces of the both ends can move in accordance with the circumferential length due to the bending of the running tire is prevented from falling off from the tire of the skid body. Can improve the running stability, and the protrusion can form a gap between the outer and inner bases of the first and second joints, so that both ends of the link between the outer and inner bases can be formed. Make it easy to insert.

【図面の簡単な説明】[Brief description of drawings]

【図１】本発明の一実施例をタイヤに装着した状態で示
すタイヤ軸方向断面図である。FIG. 1 is a cross-sectional view in the axial direction of a tire, showing an embodiment of the present invention mounted on a tire.

【図２】その部分平面図である。FIG. 2 is a partial plan view thereof.

【図３】翼板を例示する断面図である。FIG. 3 is a cross-sectional view illustrating a vane.

【図４】本発明の一実施例を示す平面図である。FIG. 4 is a plan view showing an embodiment of the present invention.

【図５】その断面図である。FIG. 5 is a sectional view thereof.

【図６】その分解斜視図である。FIG. 6 is an exploded perspective view thereof.

【図７】突起と周方向溝との係合状態を示す部分正面図
である。FIG. 7 is a partial front view showing an engagement state between a protrusion and a circumferential groove.

【図８】ジョイント金具の他の実施例を示す断面図であ
る。FIG. 8 is a sectional view showing another embodiment of the joint fitting.

【符号の説明】[Explanation of symbols]

２ タイヤ ４ トレッド面 ５ 周方向溝 ７ 防滑具本体 ９ 翼板 ２２ 外のリンクプレート ２３ ピン状の継ぎ片 ２４ 外のリンク ２５ 内のリンクプレート ２６ 円筒状の継ぎ片 ２７ 内のリンク ２９ ジョイント金具 ３０ 第１の継ぎ金物 ３１ 第２の継ぎ金物 ３２ 継ぎネジ軸 ３３ 外の基部 ３４ 透孔 ３５ 内の基部 ３６ 突部 ３７ ネジ孔 2 tires 4 tread surface 5 circumferential groove 7 anti-slip body 9 vane 22 outer link plate 23 pin-shaped joint 24 outer link 25 inner link plate 26 cylindrical joint 27 inner link 29 joint fitting 30 First joint 31 Second joint 32 Joint screw shaft 33 Outer base 34 Through hole 35 Base 36 Protrusion 37 Screw hole

Claims (2)

【特許請求の範囲】[Claims] 【請求項１】タイヤのトレッド面に連続して周方向に形
成される周方向溝内に装着される防滑具本体と、この防
滑具本体の両端を継ぐジョイント金具とからなるタイヤ
の防滑具であって、 防滑具本体は、１ピッチを隔てる円筒状の継ぎ片により
結合される内のリンクプレートを有する内のリンクと、
前記円筒状の継ぎ片内を通ることができかつ１ピッチを
隔てるピン状の継ぎ片により結合される外のリンクプレ
ートを有し前記内のリンクと交互に配される外のリンク
とからなり、前記周方向溝に、両端のリンク間に間隙を
有して装着され、かつ前記トレッド面上に張出し前記リ
ンクプレートと一体な滑り止め用の翼板を具える一方、 ジョイント金具は、周方向溝内で向き合う両端のリンク
の半径方向外側に配される第１の継ぎ金物と、内側の第
２の継ぎ金物とからなり、かつ第１の継ぎ金物は、両端
のリンクの継ぎ片を周方向にこえる長さの外の基部を具
え、かつ第２の継ぎ金物はリンク内側かつ前記外の基部
と略同長さの内の基部を具えるとともに、外の基部に、
向き合うリンクの継ぎ片の各周方向外側で半径方向に開
口する透孔を設け、内の基部に、前記透孔に向き合いこ
の透孔に挿入される継ぎネジ軸を螺入するネジ孔を設け
たことを特徴とするタイヤの防滑具。1. A slip preventive device for a tire, which comprises a slip preventer body mounted in a circumferential groove formed continuously in a circumferential direction on a tread surface of a tire, and joint fittings connecting both ends of the slip preventer body. Then, the skid body has an inner link having an inner link plate connected by cylindrical joint pieces separated by one pitch, and
Consisting of outer links alternating with said inner links having outer link plates that can pass through said cylindrical joint and are joined by pin-like joints spaced apart by one pitch, The circumferential groove is mounted with a gap between the links at both ends and has a non-slip vane that extends over the tread surface and is integral with the link plate. The first joint is arranged radially outside the links at both ends facing each other inside, and the second joint is arranged at the inner side, and the first joint is arranged around the joints of the links at both ends in the circumferential direction. An outer base having a length exceeding this length, and the second joint has an inner base having a length substantially equal to the inner side of the link and the outer base, and the outer base has
A through hole that is opened in the radial direction is provided outside each circumferential direction of the joint piece of the facing link, and a screw hole into which a joint screw shaft that is inserted into this through hole and that is inserted into this through hole is provided at the base portion inside thereof. Anti-skid equipment for tires characterized by the following. 【請求項２】前記第１、第２の継ぎ金物は、その基部
に、互いに向き合う方向に突出する突部を、向き合うリ
ンク間に位置させて形成したことを特徴とする請求項１
記載のタイヤの防滑具。2. The first and second joints are characterized in that projections projecting in mutually facing directions are formed between bases of the first and second joints so as to be located between facing links.
Anti-skid equipment for the tires described.