JP5192303B2 - Floating brake disc - Google Patents

Floating brake disc Download PDF

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Publication number
JP5192303B2
JP5192303B2 JP2008178184A JP2008178184A JP5192303B2 JP 5192303 B2 JP5192303 B2 JP 5192303B2 JP 2008178184 A JP2008178184 A JP 2008178184A JP 2008178184 A JP2008178184 A JP 2008178184A JP 5192303 B2 JP5192303 B2 JP 5192303B2
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rotor
hub
flat plate
connecting pin
elastic support
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JP2010019280A (en
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伸弘 藤田
秀計 川合
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Yutaka Giken Co Ltd
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Yutaka Giken Co Ltd
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Priority to JP2008178184A priority Critical patent/JP5192303B2/en
Priority to PCT/JP2009/061955 priority patent/WO2010004913A1/en
Priority to US12/996,430 priority patent/US8353391B2/en
Priority to EP09794359A priority patent/EP2299143A1/en
Publication of JP2010019280A publication Critical patent/JP2010019280A/en
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Description

本発明は、環状のロータと、このロータの内側に配置されるハブとを備え、軸方向に付勢力を付与する付勢手段を介在させてロータとハブとを連結ピンにより連結してなるフローティング型ブレーキディスクに関する。   The present invention includes an annular rotor and a hub disposed inside the rotor, and a floating formed by connecting a rotor and a hub with a connecting pin through an urging means for applying an urging force in an axial direction. Type brake disc.

従来、この種のフローティング型ブレーキディスクにおいては、ロータの内周縁部に所定間隔を存して第１の連結凹部を形成すると共に、この第１の連結凹部に突き合わせ可能な第２の連結凹部をハブの外周縁部に形成し、各連結凹部を突合せて組み付けたときに形成されるピン孔（ピン結合部）に連結ピンを挿通し、その一端をかしめてなるものが知られている。このように連結ピンにて両者を連結する際には、エンジン振動などピン結合部周辺で異常音や異常振動が発生することを防止しつつ、軸方向に付勢することで両者をフローティング状態に連結する皿ばね（付勢手段）が連結ピンに外挿される（例えば、特許文献１参照）。   Conventionally, in this type of floating brake disc, a first connecting recess is formed at a predetermined interval on the inner peripheral edge of the rotor, and a second connecting recess that can be abutted against the first connecting recess is provided. It is known that a connecting pin is inserted into a pin hole (pin connecting portion) formed at the outer peripheral edge of the hub and formed by abutting and connecting each connecting recess, and one end thereof is caulked. In this way, when connecting the two with the connecting pin, while preventing abnormal noise and abnormal vibration around the pin coupling part such as engine vibration, by energizing in the axial direction, both are put in a floating state. A disk spring (biasing means) to be connected is extrapolated to the connection pin (see, for example, Patent Document 1).

ここで、上記皿ばねは、ブレーキディスクの使用時に作用する各種の荷重により弾性変形を繰り返すことになるため、耐久性を有することが求められる。そこで、皿ばねを連結ピンへの外挿を可能とする開口が形成された円盤状の平板部と、前記平板部の外周に設けられたスカート状の弾性支持部とから構成されたものが従来から知られている（例えば、特許文献２参照）。   Here, the disc spring is required to have durability since it is repeatedly elastically deformed by various loads acting when the brake disc is used. Therefore, the conventional structure is composed of a disc-shaped flat plate portion having an opening that allows the disc spring to be extrapolated to the connecting pin, and a skirt-like elastic support portion provided on the outer periphery of the flat plate portion. (See, for example, Patent Document 2).

然し、特許文献２記載のものでは、連結状態で平板部から線状にのびる弾性支持部の下端周縁がロータとハブとの軸方向の面と略線接触しているため、荷重が作用して弾性変形（荷重により弾性支持部の先端下部が拡がるように変形または荷重が除去されて復元）する毎に、当該下端周縁がロータとハブとの軸方向の面上を擦れるように摺動し、皿ばねの下端周縁やロータやハブの表面が摩耗するという問題がある。このような場合に、防錆等の目的でロータやハブの表面にＮｉ等のメッキ処理が施されていると、当該メッキ層が傷つけられたり、剥離されたりする虞がある。   However, in the thing of patent document 2, since the lower end periphery of the elastic support part extended linearly from the flat plate part in the connected state is in a substantially line contact with the axial surface of the rotor and the hub, a load acts. Each time elastic deformation (deformation or load is removed so that the lower end of the elastic support part expands due to the load and restoration), the lower edge of the lower edge slides so as to rub on the axial surfaces of the rotor and the hub, There is a problem that the peripheral edge of the lower end of the disc spring and the surface of the rotor and the hub are worn. In such a case, if the surface of the rotor or hub is plated with Ni or the like for the purpose of rust prevention or the like, the plating layer may be damaged or peeled off.

このため、ロータとハブとの軸方向の面と皿ばねの先端部との間に例えばワッシャを介在させることが考えられるが、これでは、部品点数が増えて、コスト高を招くだけでなく、ロータ及びハブの連結作業も面倒である。
特開２００２−３０３３４２号公報 実公平２−４２８９７号公報 For this reason, it may be possible to interpose a washer, for example, between the axial surface of the rotor and the hub and the tip of the disc spring, but this not only increases the number of parts and increases the cost, The connecting operation of the rotor and hub is also troublesome.
JP 2002-303342 A Japanese Utility Model Publication No. 2-42897

本発明は、以上の点に鑑み、部品点数を増加することなく、付勢手段の弾性変形に起因したロータ及びハブの摩耗を抑制できる低コストのフローティング型ブレーキディスクを提供することをその課題としている。   In view of the above, it is an object of the present invention to provide a low-cost floating brake disc that can suppress wear of a rotor and a hub due to elastic deformation of an urging means without increasing the number of parts. Yes.

上記課題を解決するために、本発明は、環状のロータと、このロータの内側に配置されるハブとを備え、軸方向に付勢力を作用するように付勢手段を介在させてロータとハブとを連結ピンにより連結してなるフローティング型ブレーキディスクにおいて、前記付勢手段が、連結ピンへの外挿を可能とする開口が形成された円盤状の平板部と、前記平板部の外周に設けられたスカート状の弾性支持部とを有し、前記弾性支持部の先端周縁部を平板部側に曲げたことを特徴とする。   In order to solve the above-mentioned problems, the present invention includes an annular rotor and a hub disposed inside the rotor, and a rotor and a hub with an urging means interposed therebetween so as to exert an urging force in the axial direction. In the floating type brake disc connected to each other by a connecting pin, the urging means is provided on a disc-shaped flat plate portion having an opening that allows extrapolation to the connecting pin and an outer periphery of the flat plate portion. And a skirt-like elastic support portion, wherein the peripheral edge portion of the elastic support portion is bent toward the flat plate portion side.

本発明によれば、弾性支持部の先端周縁部が平板部側に曲げられているため、連結ピンによる連結状態では、弾性支持部の先端周縁部がロータ及びハブの軸方向の面から離間し、先端周縁部から平板部側に向かう部分でロータ及びハブの軸方向の面に面接触する。このため、ロータ及びハブの軸方向の面に対し作用する付勢手段の圧力が分散されて減少し、荷重が作用して弾性変形する際の摩耗を抑制できる。   According to the present invention, since the distal end peripheral portion of the elastic support portion is bent toward the flat plate portion side, the distal end peripheral portion of the elastic support portion is separated from the axial surfaces of the rotor and the hub in the connected state by the connection pin. The surface of the rotor and the hub in the axial direction is in surface contact at a portion from the peripheral edge portion toward the flat plate portion. For this reason, the pressure of the urging means acting on the axial surfaces of the rotor and the hub is dispersed and reduced, and wear when elastically deforming due to the load acting can be suppressed.

このように本発明では、ワッシャ等の別個の部品を用いることなしに、付勢手段だけでロータ及びハブの摩耗を抑制できる構成を実現できるため、低コストを図ることができ、その上、部品点数が減少してロータ及びハブの連結作業も簡素化できる。   As described above, in the present invention, since it is possible to realize a configuration in which wear of the rotor and the hub can be suppressed only by the urging means without using separate parts such as washers, the cost can be reduced. The number of points can be reduced and the connecting operation of the rotor and hub can be simplified.

本発明においては、荷重が作用して弾性変形した際の摩耗を効果的に抑制するために、前記連結ピンにより連結した状態で前記弾性支持部の平板部側に曲げられた先端周縁部がロータ及びハブの軸方向の面から離間し、前記弾性支持部の少なくとも半分の領域がロータ及びハブの軸方向の面に面接触していることが好ましい。   In the present invention, in order to effectively suppress wear when elastically deformed due to a load acting, a tip peripheral portion bent toward the flat plate portion side of the elastic support portion in a state of being connected by the connecting pin is a rotor. It is preferable that at least half of the elastic support portion is in surface contact with the axial surface of the rotor and the hub, and is separated from the axial surface of the hub.

また、本発明においては、前記連結ピンは、筒状の胴体部と前記胴体部の長さ方向一端に形成されたフランジ部とを備え、前記胴体部の内径のうち長さ方向他端側を、当該他端側の厚さが前記胴体部の他部より厚くなるように、前記フランジ部側の内径より局所的に小さくして、前記他端側を肉厚のかしめ部としてもよい。これによれば、かしめ部を肉厚としているため、連結ピンによりロータとハブとを連結した際の軸方向の強度を向上させることができ、上記弾性支持部の少なくとも半分の領域がロータ及びハブの軸方向の面に面接触している構成を確実に実現できる。 In the present invention, the connecting pin includes a cylindrical body portion and a flange portion formed at one end in the length direction of the body portion, and the other end side in the length direction of the inner diameter of the body portion. The other end side may be locally made smaller than the inner diameter on the flange portion side so that the thickness on the other end side is thicker than the other portion of the body portion, and the other end side may be a thick caulking portion. According to this, since the caulking portion is thick, the strength in the axial direction when the rotor and the hub are connected by the connecting pin can be improved, and at least half of the area of the elastic support portion is the rotor and the hub. The structure which is in surface contact with the surface in the axial direction can be reliably realized.

以下、図面を参照して本実施の形態の皿ばね（付勢手段）Ｓを備えた、自動二輪車に装着されるフローティング型ブレーキディスクを説明する。図１に示すように、制動時にパッド（図示せず）が圧接するロータ１は、ステンレス鋼板製であって、環状に形成される。ロータ１の内側には、車軸に連結されるアルミニウム合金製のハブ２が配置される。そして、ロータ１とハブ２とを周方向複数箇所で、皿ばねＳ及びワッシャＷを外挿した状態で連結ピン３により連結してフローティング型ブレーキディスクが構成されている（図２及び図３参照）。尚、図１の左半部は連結ピン３を装着していない状態を示し、右半部は連結ピン３及び皿ばねＳを装着した状態を示している。   Hereinafter, a floating brake disc mounted on a motorcycle provided with a disc spring (biasing means) S of the present embodiment will be described with reference to the drawings. As shown in FIG. 1, the rotor 1 with which a pad (not shown) press-contacts at the time of braking is made of a stainless steel plate and is formed in an annular shape. Inside the rotor 1, a hub 2 made of aluminum alloy connected to the axle is arranged. The rotor 1 and the hub 2 are connected to each other at a plurality of locations in the circumferential direction by connecting pins 3 in a state where the disc springs S and the washers W are externally inserted (see FIGS. 2 and 3). ). The left half of FIG. 1 shows a state in which the connecting pin 3 is not attached, and the right half shows a state in which the connecting pin 3 and the disc spring S are attached.

ハブ２には、中央の軸穴４と、軽量化のための大小複数の孔５とが形成されている。ハブ２の外周には、連結ピン３をブレーキディスクの径方向内方と周方向一方（反時計方向）と径方向外方との３方向から囲うようにして受け入れる、周方向他方に開口部６ａを有する第１のピン受け部６１と、連結ピン３をブレーキディスクの径方向内方と周方向他方（時計方向）と径方向外方との３方向から囲うようにして受け入れる、周方向一方に開口部６ａを有する第２のピン受け部６２とが周方向の間隔を存して交互に形成されている。 The hub 2 is formed with a central shaft hole 4 and a plurality of small and large holes 5 for weight reduction. On the outer periphery of the hub 2, the connecting pin 3 is received so as to surround the brake disk from three directions, one in the radial direction and one in the circumferential direction (counterclockwise direction) and the other in the radial direction. a first pin receiving portion 61 having the accept so as to surround the connecting pin 3 from three directions radially inwardly of the brake disc and the other circumferential and (clockwise) and radially outward, one circumferential are formed alternately and the second pin receiving section 6 2 having an opening portion 6a is to exist in the circumferential direction of the spacing.

ロータ１の内周には、第１のピン受け部６１の開口部を閉塞するようにして径方向内方にのび、連結ピン３を第１のピン受け部６１との間に挟み込む舌片状の第３のピン受け部６３と、第２のピン受け部６２の開口部を閉塞するようにして径方向内方にのび、連結ピン３を第２のピン受け部６２との間に挟み込む舌片状の第４のピン受け部６４とが周方向の間隔を存して交互に形成されている。尚、第３と第４の各ピン受け部６３，６４は、ロータ１の他の部分よりも肉薄に形成されている。また、ロータ１には、多数の水切り孔７が形成され、ロータ１の内周部に、第３と第４の各ピン受け部６３，６４と同一の周方向箇所に位置させて透孔８が形成されている。 The inner periphery of the rotor 1, extends radially inward so as to close the first pin receiving portion 61 of the opening, to sandwich the connecting pin 3 between a first pin receiving portion 61 Tongue a third pin receiving section 6 3 flake, extending radially inward so as to close the second pin receiving portion 6 second opening, a connecting pin 3 and the second pin receiving section 6 2 are formed alternately and fourth pin receiving section 6 4 of the tongue-like sandwiched between is to exist in the circumferential direction of the spacing. The third and fourth pin receiving portions 6 3 and 6 4 are formed thinner than other portions of the rotor 1. Further, the rotor 1 is formed with a number of drain holes 7 and is formed in the inner peripheral portion of the rotor 1 so as to be positioned at the same circumferential position as the third and fourth pin receiving portions 6 3 and 6 4. A hole 8 is formed.

連結ピン３は、外径が第１と第２の各ピン受け部６１，６２及び第３と第４の各ピン受け部６３，６４に内接する円の径より僅かに小径の中空ピンからなる胴体部３ａを備え、連結ピン３の長さ方向の一端には、第１と第２の各ピン受け部６１，６２及び第３と第４の各ピン受け部６３，６４の軸方向一方の側面に当接するフランジ部３ｂを有する（図３参照）。 The connecting pin 3 has an outer diameter slightly smaller than the diameter of a circle inscribed in each of the first and second pin receiving portions 6 1 , 6 2 and the third and fourth pin receiving portions 6 3 , 6 4 . A body portion 3a made of a hollow pin is provided, and the first and second pin receiving portions 6 1 and 6 2 and the third and fourth pin receiving portions 6 3 are provided at one end of the connecting pin 3 in the length direction. a flange portion 3b abuts the axial direction one side of the 6 4 (see FIG. 3).

また、胴体部３ａの内壁には、フランジ部３ｂ側の一端から略中央部に亘って切削加工等により凹部３ｃが形成され、胴体部３ａの内径のうち長さ方向他端側をフランジ部３ｂ側のものより局所的に小さくして当該他端側を肉厚のかしめ部３ｄとしている（図３参照）。尚、凹部３ｃの深さや当該凹部３ｃが形成された部分の胴体部３ａの肉厚は、連結ピンの強度が保持できる範囲で適宜選択できる。 Further, a recess 3c is formed on the inner wall of the body portion 3a from one end on the flange portion 3b side to a substantially central portion by cutting or the like. The other end side is made smaller than the one on the side to make a thick caulking portion 3d (see FIG. 3). In addition, the depth of the recessed part 3c and the thickness of the trunk | drum 3a of the part in which the said recessed part 3c was formed can be suitably selected in the range which can hold | maintain the intensity | strength of a connection pin.

そして、ロータ１とハブとを連結する際に、連結ピン３を他端側に皿ばねＳとワッシャＷとを外挿して、この状態で連結ピン３の他端をローラかしめ等の公知の方法でかしめることにより、ワッシャＷを介して皿ばね３ｂを第１と第２の各ピン受け部６１，６２及び第３と第４の各ピン受け部６３，６４の軸方向他方の側面に圧接させる。 Then, when connecting the rotor 1 and the hub, a known method such as inserting the disc spring S and the washer W on the other end side of the connecting pin 3 and roller caulking the other end of the connecting pin 3 in this state. By caulking, the disc spring 3b is connected to the first and second pin receiving portions 6 1 and 6 2 and the third and fourth pin receiving portions 6 3 and 6 4 in the other axial direction through the washer W. Press to the side of the.

ここで、ワッシャＷは、例えばステンレス製で、且つ、略矩形の外形を有し、第１と第２の各ピン受け部６１，６２及び第３と第４の各ピン受け部６３，６４の軸方向の面を覆う面積を有する。 Here, the washer W is made of, for example, stainless steel and has a substantially rectangular outer shape, and the first and second pin receiving portions 6 1 and 6 2 and the third and fourth pin receiving portions 6 3. has an area which covers the axial plane of the 6 4.

他方で、皿ばねＳは、例えばステンレス製であり、連結ピン３への外挿を可能とする開口Ｓａが形成された円盤状の平板部Ｓ１と、平板部Ｓ１の外周に設けられたスカート状の弾性支持部Ｓ２とからなり、弾性支持部Ｓ２の先端周縁部Ｓ３が平板部Ｓ１側（図３（ａ)中上方）に折り曲げられている（図３及び図４参照）。   On the other hand, the disc spring S is made of, for example, stainless steel, a disc-shaped flat plate portion S1 in which an opening Sa that allows extrapolation to the connecting pin 3 is formed, and a skirt shape provided on the outer periphery of the flat plate portion S1. The distal end peripheral edge S3 of the elastic support portion S2 is bent toward the flat plate portion S1 (upper side in FIG. 3A) (see FIGS. 3 and 4).

そして、ロータ１とハブ２とを連結する際、第１と第２の各ピン受け部６１，６２及び第３と第４の各ピン受け部６３，６４と連結ピン３の外周面との間に生ずる僅かな隙間分だけ径方向及び周方向に相対変位自在に、且つ、先端周縁部Ｓ３がロータ１及びハブ２の軸方向の側面から離間し、前記弾性支持部Ｓ２が、その全長の略半分がロータ１及びハブ２の軸方向の面に面接触し、荷重が作用しても撓むことのできるように軸方向に相対変位自在に連結されている。なお、弾性支持部Ｓ２が面接触する領域は、荷重が作用しても撓むことのできる範囲において適宜変更してもよい。 Then, when connecting the rotor 1 and hub 2, the outer periphery of the first and second respective pin receiving portions 61 of the, 6 2 and the third and fourth pins of the receiving portion 6 3, 6 4 and the connecting pin 3 The tip peripheral edge S3 is separated from the axial side surfaces of the rotor 1 and the hub 2 so as to be relatively displaceable in a radial direction and a circumferential direction by a slight gap generated between the elastic support part S2 and the elastic support part S2. Almost half of the total length is in surface contact with the axial surfaces of the rotor 1 and the hub 2 and is connected so as to be relatively displaceable in the axial direction so that it can bend even when a load is applied. In addition, you may change suitably the area | region where elastic support part S2 surface-contacts in the range which can be bent even if a load acts.

このように本実施の形態によれば、ロータ１とハブ２とを連結した場合に、ロータ１及びハブ２の軸方向の面に対し作用する皿ばねＳの圧力が分散されて減少し、荷重が作用して弾性変形する際の摩耗を効果的に抑制できる。その結果、従来技術の皿ばねの場合には、当該皿ばねとロータ及びハブの軸方向の面との間にワッシャ等の別個の部品を用いる必要があるのに対して、本実施の形態では別個の部品を必要とすることなく、皿ばねＳだけでロータ１及びハブ２の摩耗を抑制できる構成を実現できるため、低コストを図ることができ、その上、部品点数が減少してロータ１及びハブ２の連結作業も簡素化できる。   Thus, according to the present embodiment, when the rotor 1 and the hub 2 are connected, the pressure of the disc spring S acting on the axial surfaces of the rotor 1 and the hub 2 is dispersed and reduced, and the load It is possible to effectively suppress wear when elastically deforming by acting. As a result, in the case of the disc spring of the prior art, it is necessary to use separate parts such as washers between the disc spring and the axial surfaces of the rotor and the hub. Since it is possible to realize a configuration in which the wear of the rotor 1 and the hub 2 can be suppressed with only the disc spring S without requiring separate parts, the cost can be reduced, and the number of parts is reduced and the rotor 1 is reduced. And the connection work of the hub 2 can also be simplified.

また、連結ピン３の胴体部３ｂの内径のうち長さ方向他端側をフランジ部３ａ側の内径より局所的に小さくし、当該他端側を肉厚のかしめ部３ｄとしたため、ロータ１とハブ２との連結時に軸方向の強度を向上させることができ、上記弾性支持部Ｓ２の少なくとも半分の領域がロータ１及びハブ２の軸方向の面に面接触している構成を確実に実現できる。 Further, the other end in the length direction of the inner diameter of the body portion 3b of the connecting pin 3 is locally smaller than the inner diameter on the flange portion 3a side, and the other end side is a thick caulking portion 3d. The axial strength can be improved at the time of connection with the hub 2, and a configuration in which at least half of the elastic support portion S2 is in surface contact with the axial surfaces of the rotor 1 and the hub 2 can be reliably realized. .

なお、本実施の形態では、第１と第２の各ピン受け部６１，６２及び第３と第４の各ピン受け部６３，６４で囲うようにして連結ピン３を受け入れるものを例に説明したが、これに限定されるものではなく、例えば上記特許文献１のように、各連結凹部を突合せてピン孔を形成する場合にも本発明を適用してロータとハブとを連結できる。 In the present embodiment, the first and second pin receiving portions 6 1 and 6 2 and the third and fourth pin receiving portions 6 3 and 6 4 receive the connecting pin 3 so as to be enclosed. However, the invention is not limited to this. For example, as in Patent Document 1 described above, the present invention is also applied to a case where a pin hole is formed by abutting each connecting recess, and the rotor and the hub are combined. Can be linked.

本発明の実施の形態のブレーキディスクの正面図。The front view of the brake disc of embodiment of this invention. (ａ)及び（ｂ）は、図１に示すブレーキディスクの要部の拡大正面図及び拡大背面図。(a) And (b) is the enlarged front view and enlarged back view of the principal part of the brake disc shown in FIG. 図２のＩＩＩ−ＩＩＩ線で切断した断面図。Sectional drawing cut | disconnected by the III-III line | wire of FIG. （ａ）乃至（ｃ）は、皿ばねを説明する図。(A) thru | or (c) is a figure explaining a disc spring.

符号の説明Explanation of symbols

１ ロータ
２ ハブ
３ 連結ピン
３ａ フランジ部
３ｂ 胴体部
３ｄ かしめ部
６１ 第１のピン受け部
６２ 第２のピン受け部
６ａ 開口部
６３ 第３のピン受け部
６４ 第４のピン受け部
８ 透孔
Ｓ 皿ばね（付勢手段）
Ｓ１ 平板部
Ｓ２ 弾性支持部
Ｓ３ 先端周縁部
Ｗ ワッシャ 1 rotor
2 Hub
3 Connecting pin
3a Flange
3b trunk
3d crimping part
6 1 1st pin receiving part
6 2 2nd pin receiving part
6a opening
6 3 3rd pin receiving part
6 4 4th pin receiving part
8 Through hole
S disc spring (biasing means)
S1 flat plate
S2 Elastic support
S3 Tip edge
W washer

Claims (1)

環状のロータと、このロータの内側に配置されるハブとを備え、軸方向に付勢力を付与する付勢手段を介在させてロータとハブとを連結ピンにより連結してなるフローティング型ブレーキディスクにおいて、
前記付勢手段が、連結ピンへの外挿を可能とする開口が形成された円盤状の平板部と、前記平板部の外周に設けられたスカート状の弾性支持部とを有し、前記弾性支持部の先端周縁部を平板部側に曲げ、
前記連結ピンにより連結した状態で前記弾性支持部の平板部側に曲げられた先端周縁部がロータ及びハブの軸方向の面から離間し、前記弾性支持部の少なくとも半分の領域がロータ及びハブの軸方向の面に面接触し、
前記連結ピンは、筒状の胴体部と前記胴体部の長さ方向一端に形成されたフランジ部とを備え、前記胴体部の内径のうち長さ方向他端側を、当該他端側の厚さが前記胴体部の他部より厚くなるように、前記フランジ部側の内径より局所的に小さくして、前記他端側を肉厚のかしめ部としたことを特徴とするフローティング型ブレーキディスク。 In a floating type brake disc comprising an annular rotor and a hub arranged inside the rotor, wherein the rotor and the hub are connected by a connecting pin via an urging means for applying an urging force in the axial direction. ,
The biasing means includes a disk-shaped flat plate portion having an opening that allows extrapolation to a connecting pin, and a skirt-shaped elastic support portion provided on the outer periphery of the flat plate portion, and the elastic Bend the tip peripheral edge of the support part to the flat plate part side ,
The peripheral edge portion of the elastic support portion bent toward the flat plate portion side in a state of being connected by the connection pin is separated from the axial surface of the rotor and the hub, and at least a half region of the elastic support portion is the rotor and hub. In surface contact with the axial surface,
The connecting pin includes a cylindrical body portion and a flange portion formed at one end in the length direction of the body portion, and the other end side in the length direction of the inner diameter of the body portion is set to a thickness on the other end side. A floating type brake disc characterized in that the other end side is a thick caulking portion that is locally smaller than the inner diameter of the flange portion side so that the thickness is thicker than the other portion of the body portion .
JP2008178184A 2008-07-08 2008-07-08 Floating brake disc Expired - Fee Related JP5192303B2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2008178184A JP5192303B2 (en) 2008-07-08 2008-07-08 Floating brake disc
PCT/JP2009/061955 WO2010004913A1 (en) 2008-07-08 2009-06-30 Floating type brake disc
US12/996,430 US8353391B2 (en) 2008-07-08 2009-06-30 Floating type brake disc
EP09794359A EP2299143A1 (en) 2008-07-08 2009-06-30 Floating type brake disc

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2008178184A JP5192303B2 (en) 2008-07-08 2008-07-08 Floating brake disc

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Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61198736U (en) * 1985-05-31 1986-12-12
JPH08210400A (en) * 1995-02-06 1996-08-20 Nitsupatsu Seimitsu Kogyo Kk Connecting structure of disc and bracket in disc brake
JP3060156B2 (en) * 1995-05-19 2000-07-10 株式会社ユタカ技研 Disc connection of disc brake

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