JP5085591B2 - Combination shim plate for disc brake - Google Patents

Combination shim plate for disc brake Download PDF

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JP5085591B2
JP5085591B2 JP2009055949A JP2009055949A JP5085591B2 JP 5085591 B2 JP5085591 B2 JP 5085591B2 JP 2009055949 A JP2009055949 A JP 2009055949A JP 2009055949 A JP2009055949 A JP 2009055949A JP 5085591 B2 JP5085591 B2 JP 5085591B2
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shim
shim plate
plate
substrate portion
diameter side
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JP2010209995A (en
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文雄 竹盛
亘 鈴木
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Akebono Brake Industry Co Ltd
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この発明は、車両の制動を行う為に利用するディスクブレーキに組み込んで、ブレーキ鳴きやパッドの偏摩耗を抑える為に利用するディスクブレーキ用組み合わせシム板の改良に関する。具体的には、互いに組み合わされた複数枚のシム板が、上記パッドを構成するプレッシャプレートの背面に組み付ける以前に於いても不用意に分離しない様にして、部品としてのディスクブレーキ用組み合わせシム板の取り扱い性、並びに、上記プレッシャプレートへの組み付け性の向上を図るものである。 The present invention relates to an improvement in a combination shim plate for a disc brake which is incorporated in a disc brake used for braking a vehicle and used to suppress brake noise and uneven wear of pads. Specifically, a combination shim plate for a disc brake as a component so that a plurality of shim plates combined with each other are not inadvertently separated even before being assembled to the back surface of the pressure plate constituting the pad. It is intended to improve the ease of handling and the ease of assembly to the pressure plate.

車両の制動を行う為のディスクブレーキの制動時の鳴きや、パッドの偏摩耗を抑える為の技術として、従来から、例えば、キャリパの爪部及びピストンの先端面とパッドとの間に、シム板を設ける事が行われている。又、上記機能の向上を目的として、シム板を複数枚重ね合わせた組み合わせシム板の構造に関しても、例えば特許文献１〜３に記載されている様に、従来から各種知られている。周知の様に、この様なシム板或は組み合わせシム板は、キャリパの爪部又はピストンの先端面と、上記パッドを構成するプレッシャプレートの背面との間に挟持する。そして、制動に伴うキャリパの挙動を安定させて上記パッドのライニングが偏摩耗する事を抑え、このパッドの耐久性向上や、制動時に鳴きと呼ばれる異音が発生する事を抑える様にしている。   Conventionally, as a technique for suppressing the squeal at the time of braking of the disc brake for braking the vehicle and uneven wear of the pad, for example, a shim plate between the claw portion of the caliper and the tip surface of the piston and the pad is conventionally used. It has been done. For the purpose of improving the above functions, various combinations of shim plates in which a plurality of shim plates are overlapped have been conventionally known as described in Patent Documents 1 to 3, for example. As is well known, such a shim plate or a combination shim plate is sandwiched between a claw portion of a caliper or a tip end surface of a piston and a back surface of a pressure plate constituting the pad. Then, the caliper behavior associated with braking is stabilized to suppress uneven wear of the pad lining, thereby improving the durability of the pad and suppressing occurrence of abnormal noise called squeal during braking.

図１１〜１３は、上述の様な役目を果たす組み合わせシム板のうち、上記特許文献１に記載された構造を示している。この組み合わせシム板１は、パッド２を構成するプレッシャプレート３の背面に添設される、それぞれがステンレス鋼板等の耐食性を有する金属板製である、内側シム板４と、この内側シム板４に重ね合わせた外側シム板５とを備える。尚、これら内側、外側両シム板４、５は、直接重ね合わせる他、間に他の部材（第三のシム板又は振動減衰板）を介在させた状態で重ね合わせる場合もある。   11-13 has shown the structure described in the said patent document 1 among the combination shim boards which perform the above roles. The combination shim plate 1 is attached to the back surface of the pressure plate 3 constituting the pad 2, each of which is made of a metal plate having corrosion resistance such as a stainless steel plate, and the inner shim plate 4. And an overlapped outer shim plate 5. The inner and outer shim plates 4 and 5 may be directly overlapped, or may be overlapped with another member (third shim plate or vibration damping plate) interposed therebetween.

何れの場合でも、上記内側シム板４の周縁部のうち、車体への組み付け状態でのロータ（図示せず）の径方向両端縁部に、それぞれ内側係止片６ａ、６ｂを、それぞれ上記プレッシャプレート３に向け折り曲げた状態で設けている。図示の例では、径方向外端縁の中央部に１個の内側係止片６ａを、同じく径方向内端縁の両側寄り部分に２個の内側係止片６ｂ、６ｂを、それぞれ設けている。これら各内側係止片６ａ、６ｂはそれぞれ、図１２に示す様に、上記内側シム板４の基板部７に近い側で、この基板部７の周縁からの上記ロータの径方向に関する突出量が大きく、この基板部７から離れるに従ってこの方向の突出量が小さくなった後、再び同方向の突出量が多くなる様に傾斜している。又、上記基板部７には、それぞれがスリット状である、複数の透孔８、８を形成し、これら各透孔８、８内に、グリース等の潤滑剤を保持可能としている。尚、本明細書及び特許請求の範囲で、径方向（内径側、外径側の語も同様）及び周方向とは、特に断らない限り、上記ロータの径方向及び周方向を言う。   In any case, the inner locking pieces 6a and 6b are respectively attached to the peripheral edge portions of the inner shim plate 4 at both ends in the radial direction of the rotor (not shown) in the assembled state to the vehicle body. It is provided in a state bent toward the plate 3. In the illustrated example, one inner locking piece 6a is provided at the center of the radially outer end edge, and two inner locking pieces 6b and 6b are provided on both sides of the radially inner end edge. Yes. As shown in FIG. 12, each of the inner locking pieces 6a and 6b has a protruding amount in the radial direction of the rotor from the peripheral edge of the substrate portion 7 on the side closer to the substrate portion 7 of the inner shim plate 4. Largely, the protrusion amount in this direction decreases as the distance from the substrate portion 7 decreases, and then the inclination is increased so that the protrusion amount in the same direction again increases. Further, the substrate portion 7 is formed with a plurality of through holes 8 and 8 each having a slit shape, and a lubricant such as grease can be held in each of the through holes 8 and 8. In the present specification and claims, the radial direction (the same applies to the inner diameter side and the outer diameter side) and the circumferential direction refer to the radial direction and circumferential direction of the rotor unless otherwise specified.

一方、上記外側シム板５は、上記内側シム板４とは異なり、無孔の基板部９の周縁部のうち、車体への組み付け状態でのロータの径方向両端縁部に、それぞれ外側係止片１０ａ、１０ｂを、それぞれ上記プレッシャプレート３に向け折り曲げた状態で設けている。これら各外側係止片１０ａ、１０ｂの形状に関しても、上記各内側係止片６ａ、６ｂと同様に、上記基板部９に近い側で突出量が大きく、この基板部９から離れるに従ってこの方向の突出量が小さくなった後、再び同方向の突出量が多くなる方向に傾斜した形状としている。又、上記各外側係止片１０ａ、１０ｂを形成した位置は、上記各内側係止片６ａ、６ｂを形成した位置に一致させている。   On the other hand, the outer shim plate 5 is different from the inner shim plate 4 in the outer peripheral engagement with the both end portions in the radial direction of the rotor in the assembled state to the vehicle body in the peripheral portion of the non-porous substrate portion 9. The pieces 10a and 10b are provided in a state of being bent toward the pressure plate 3, respectively. Regarding the shape of each of the outer locking pieces 10a and 10b, as in the case of the inner locking pieces 6a and 6b, the protruding amount is large on the side close to the substrate part 9, and as the distance from the substrate part 9 increases, After the protrusion amount becomes small, the shape is inclined again in the direction in which the protrusion amount in the same direction increases again. Further, the positions where the outer locking pieces 10a, 10b are formed coincide with the positions where the inner locking pieces 6a, 6b are formed.

それぞれが上述の様な形状を有する、上記内側、外側両シム板４、５は、図１１〜１２に示す様に、互いに重ね合わせた状態で、上記プレッシャプレート３の背面に組み付ける。即ち、上記内側シム板４の径方向両端縁部に設けた上記各内側係止片６ａ、６ｂを上記プレッシャプレート３の径方向両端縁部に係止し、更に、上記各外側係止片１０ａ、１０ｂを、上記各内側係止片６ａ、６ｂに、これら各内側係止片６ａ、６ｂを径方向両側から挟み付ける状態で係止する。この状態で上記内側シム板４は上記プレッシャプレート３に対して、径方向の変位を阻止された状態で、周方向に関する若干の変位を可能に係止される。又、上記外側シム板５は上記内側シム板４に対して、径方向の変位を阻止された状態で、周方向に関する若干の変位を可能に係止される。   The inner and outer shim plates 4 and 5 each having the shape as described above are assembled to the back surface of the pressure plate 3 in a state of being overlapped with each other as shown in FIGS. That is, the inner locking pieces 6a and 6b provided at both radial end edges of the inner shim plate 4 are locked to the radial end edges of the pressure plate 3, and the outer locking pieces 10a. 10b is locked to the inner locking pieces 6a and 6b in a state where the inner locking pieces 6a and 6b are sandwiched from both sides in the radial direction. In this state, the inner shim plate 4 is locked to the pressure plate 3 so as to be able to be slightly displaced in the circumferential direction while being prevented from being displaced in the radial direction. Further, the outer shim plate 5 is locked to the inner shim plate 4 so as to be able to be slightly displaced in the circumferential direction while being prevented from being displaced in the radial direction.

上述の様な従来構造の場合、キャリパの爪部又はピストンの先端面と、上記プレッシャプレート３とを、周方向に関して軽い力でずれ動く様にできる。この為、制動時に、ロータによって、上記プレッシャプレート３を含むパッド２がこのロータの周方向に移動しても、キャリパの挙動を安定させる事ができ、このパッドの偏摩耗及びブレーキ鳴きを抑える事ができる。又、上記図１１〜１３に示した従来構造の第１例の場合には、上記外側シム板５を上記内側シム板４に対しロータ軸方向に離れにくくでき、これら両シム板４、５と上記パッド２との組み合せである、パッド組立体の取り扱い性の向上を図れる。   In the case of the conventional structure as described above, the claw portion of the caliper or the tip end surface of the piston and the pressure plate 3 can be moved with a slight force in the circumferential direction. Therefore, during braking, even if the pad 2 including the pressure plate 3 moves in the circumferential direction of the rotor by the rotor, the behavior of the caliper can be stabilized, and uneven wear and brake squealing of the pad can be suppressed. Can do. In the case of the first example of the conventional structure shown in FIGS. 11 to 13, the outer shim plate 5 can be hardly separated from the inner shim plate 4 in the rotor axial direction. The handleability of the pad assembly, which is a combination with the pad 2, can be improved.

図１１〜１３に示した従来構造の第１例は、上述の様に、偏摩耗防止及び取り扱い性向上の面から優れた性能を有するものであるが、取り扱い性をより一層向上させる面からは、改良の余地がある。即ち、上記従来構造は、上記両シム板４、５を上記プレッシャプレート３の背面に組み付ける以前の状態では、これら両シム板４、５同士が不用意に分離する事を十分には防止できない。具体的には、これら両シム板４、５が周方向（図１１の左右方向、図１２の表裏方向）にずれ動いた場合、前記各内側係止片６ａ、６ｂと前記各外側係止片１０ａ、１０ｂとの係合が外れ、上記両シム板４、５が分離してしまう。これら両シム板４、５を上記プレッシャプレート３の背面に組み付けた後の状態では、このプレッシャプレート３に形成した段差部と上記各係止片６ａ、６ｂ、１０ａ、１０ｂとの係合に基づき、上記両シム板４、５の周方向へのずれ量を規制できるが、組み付け前の状態ではこのずれ量を規制できない為、上記不用意な分離を防止できない。 The first example of the conventional structure shown in FIGS. 11 to 13 has excellent performance in terms of preventing uneven wear and improving handleability as described above, but from the viewpoint of further improving handleability. There is room for improvement. That is, the conventional structure cannot sufficiently prevent the two shim plates 4 and 5 from being inadvertently separated from each other before the shim plates 4 and 5 are assembled to the back surface of the pressure plate 3. Specifically, (left-right direction, the front and back direction of FIG. 12 in FIG. 11) when moved shifted to the respective inner locking pieces 6a, 6b and each of the outer locking piece the both shim plates 4 and 5 are circumferentially As a result, the shim plates 4 and 5 are separated from each other. In a state after the both shim plates 4 and 5 are assembled to the back surface of the pressure plate 3, the stepped portion formed on the pressure plate 3 is engaged with the locking pieces 6a, 6b, 10a and 10b. Although the amount of deviation of the shim plates 4 and 5 in the circumferential direction can be restricted, the amount of deviation cannot be restricted in the state before assembly, and thus the inadvertent separation cannot be prevented.

特許文献２には、図１４〜１５に示す様に、内側シム板４ａの周方向両端部に一対の係合爪１１、１１を、外側シム板５ａに向け折り立てた状態で設けた構造が記載されている。これら両シム板４ａ、５ａをパッド２ａのプレッシャプレート３ａの背面に組み付けた状態で、上記両係合爪１１、１１と、上記外側シム板５ａの周方向両端部に設けた一対の切り欠き１２、１２とが係合する。又、この外側シム板５ａが上記プレッシャプレート３ａに対し、外側係止片１０ｃ、１０ｄにより係止される。この様な特許文献２に記載された発明の構造の場合には、上記両シム板４ａ、５ａを上記プレッシャプレート３ａの背面に組み付ける以前の状態では、これら両シム板４ａ、５ａがそれぞれの厚さ方向（図１５の表裏方向）に離れる事を阻止できず、これら両シム板４ａ、５ａが不用意に分離する可能性がある。   In Patent Document 2, as shown in FIGS. 14 to 15, a pair of engaging claws 11, 11 are provided at both ends in the circumferential direction of the inner shim plate 4 a so as to be folded toward the outer shim plate 5 a. Have been described. In a state where both the shim plates 4a and 5a are assembled to the back surface of the pressure plate 3a of the pad 2a, a pair of notches 12 provided at both end portions in the circumferential direction of the both engaging claws 11 and 11 and the outer shim plate 5a. , 12 are engaged. Further, the outer shim plate 5a is locked to the pressure plate 3a by outer locking pieces 10c and 10d. In the case of the structure of the invention described in Patent Document 2, the shim plates 4a and 5a are not thickened in the state before the shim plates 4a and 5a are assembled to the back surface of the pressure plate 3a. There is a possibility that these shim plates 4a and 5a may be inadvertently separated from each other because it cannot be prevented from separating in the vertical direction (the front and back direction in FIG. 15).

更に、特許文献３には、図１６に示す様な、内側シム板４ｂと外側シム板５ｂとから成るディスクブレーキ用組み合わせシム板の構造が記載されているが、この様な従来構造の第３例にしても、上記両シム板４ｂ、５ｂをパッドのプレッシャプレートの背面に組み付け、更にディスクブレーキの構成各部材を組み立てる以前の状態では、上記両シム板４ｂ、５ｂ同士が不用意に分離する可能性がある。
以上に述べた様に、特許文献１〜３に記載された従来構造の第１〜３例は何れも、内側、外側両シム板をパッドのプレッシャプレートに組み付ける以前の状態で、これら両シム板が不用意に分離するのを防止する事は意図していない。この為、これら両シム板を組み合わせたディスクブレーキ用組み合わせシム板の取り扱い性が必ずしも良好とは言えず、ディスクブレーキの組立作業性向上の面から改良の余地がある。 Further, Patent Document 3 describes the structure of a disc brake combination shim plate composed of an inner shim plate 4b and an outer shim plate 5b as shown in FIG. For example, both the shim plates 4b and 5b are inadvertently separated from each other in a state before the shim plates 4b and 5b are assembled to the back surface of the pressure plate of the pad and the components of the disc brake are assembled. there is a possibility.
As described above, all of the first to third examples of the conventional structure described in Patent Documents 1 to 3 are in a state before both the inner and outer shim plates are assembled to the pressure plate of the pad. It is not intended to prevent inadvertent separation. For this reason, it cannot be said that the handleability of the combination shim plate for disc brakes in which these both shim plates are combined is good, and there is room for improvement in terms of improving the assembly workability of the disc brake.

特開２００６−２００５６０号公報JP 2006-200560 A 実公平３−４６２６２号公報Japanese Utility Model Publication No. 3-46262 実公平６−１１３７７号公報No. 6-11377

本発明は、上述の様な事情に鑑みて、内側、外側両シム板同士が周方向に相対変位する事を許容でき、しかも、これら両シム板をパッドのプレッシャプレートの背面に組み付ける以前の状態でも、これら両シム板が不用意に分離する事を防止できる、新規且つ有用なディスクブレーキ用組み合わせシム板の構造を実現すべく発明したものである。   In view of the circumstances as described above, the present invention can allow the inner and outer shim plates to be displaced relative to each other in the circumferential direction, and the state before the shim plates are assembled to the back surface of the pressure plate of the pad. However, the present invention was invented to realize a new and useful combination structure for a disc brake shim plate that can prevent the two shim plates from being carelessly separated.

本発明のディスクブレーキ用組み合わせシム板は、前述の特許文献１〜３に記載される等により従来から知られているディスクブレーキ用組み合わせシム板と同様に、内側シム板と外側シム板とを備える。
このうちの内側シム板は、ディスクブレーキ用のパッドを構成するプレッシャプレートの背面に添設されるもので、平板状の内側基板部と、この内側基板部の内径側、外径側両端縁から径方向及び厚さ方向に突出した内径側、外径側各内側係止片とを備える。
又、上記外側シム板は、上記内側シム板に、直接又は他の部材を介して重ねられたものであり、平板状の外側基板部と、この外側基板部の内径側、外径側両端縁から径方向及び厚さ方向に突出した内径側、外径側各外側係止片を備える。
更に、上記各内径側、外径側各外側係止片の先端寄り部分の内側面が、上記各内径側、外径側各内側係止片の先端寄り部分の外側面に当接若しくは近接対向する事により、上記内側基板部と上記外側基板部とがそれぞれの厚さ方向に離れる事を阻止している。
この為に例えば、上記各外側係止片及び上記各内側係止片はそれぞれ、基板部からの径方向に関する突出量が、この基板部に近い基部で大きく、この基部よりも先端寄り部分で小さくなる方向に傾斜したものとする。 The disc brake combination shim plate of the present invention includes an inner shim plate and an outer shim plate in the same manner as the disc brake combination shim plate conventionally known as described in Patent Documents 1 to 3 described above. .
Of these, the inner shim plate is attached to the back surface of the pressure plate constituting the pad for the disc brake, and is formed from the flat inner substrate portion and the inner and outer diameter side edges of the inner substrate portion. It has an inner diameter side and an outer diameter side inner locking piece protruding in the radial direction and the thickness direction.
The outer shim plate is superimposed on the inner shim plate directly or via another member, and has a flat plate-like outer substrate portion and inner and outer diameter side edges of the outer substrate portion. Provided on the inner diameter side and the outer diameter side of the outer locking piece protruding in the radial direction and the thickness direction.
Further, the inner surface of the inner diameter side of each of the inner diameter side and outer diameter side outer locking pieces is in contact with or close to the outer surface of the inner diameter side and outer diameter side of each inner locking piece. Thus, the inner substrate portion and the outer substrate portion are prevented from separating in the thickness direction.
For this reason, for example, each of the outer locking pieces and the inner locking pieces has a protruding amount in the radial direction from the substrate portion that is large at the base portion near the substrate portion and smaller at the portion closer to the tip than the base portion. It shall be inclined in the direction.

特に、本発明のディスクブレーキ用組み合わせシム板に於いては、上記外側シム板と上記内側シム板との間に、これら両シム板同士の周方向への相対変位を規制する為の規制手段として、上記内側基板部の周方向両端縁から上記外側基板部に向け折れ曲がった一対の折れ曲がり片を設ける。そして、これら両折れ曲がり片の互いに対向する側面同士の間隔を、上記外側基板部の周方向長さよりも大きくする事により、上記内側シム板を上記外側シム板に対し、上記間隔と上記周方向長さとの差に応じた長さ分だけ周方向に変位可能とする。更に、この長さ分だけ、上記内側シム板と上記外側シム板とを周方向に相対変位させた状態でも、上記各外側係止片と上記各内側係止片との係合が外れない様に、これら各係止片の周方向に関する幅と、上記間隔と、上記周方向長さとを規制する。この様な構成により、互いに組み合わされた上記外側、内側両シム板が、上記パッドプレッシャプレートの背面に組み付ける以前に於いても不用意に分離しない様にしている。 Particularly, in the combination shim plate for disc brake of the present invention, as a restricting means for restricting the relative displacement in the circumferential direction between the two shim plates between the outer shim plate and the inner shim plate. A pair of bent pieces bent from both circumferential edges of the inner substrate portion toward the outer substrate portion are provided. Then, the interval between the side surfaces of the two bent pieces facing each other is made larger than the circumferential length of the outer substrate portion, so that the inner shim plate is spaced from the outer shim plate by the interval and the circumferential length. It is possible to displace in the circumferential direction by the length corresponding to the difference. Further, even when the inner shim plate and the outer shim plate are relatively displaced in the circumferential direction by this length, the engagement between the outer locking pieces and the inner locking pieces is not released. In addition, the width in the circumferential direction of each of the locking pieces, the interval, and the circumferential length are restricted. With such a configuration, the outer and inner shim plates combined with each other are prevented from being inadvertently separated even before being assembled to the back surface of the pad pressure plate .

上述の様に本発明のディスクブレーキ用組み合わせシム板は、前述の図１１〜１３で説明した、特許文献１に記載された従来構造の第１例の場合と同様に、各外側係止片と各内側係止片とが、内側、外側両シム板同士の周方向に関する相対変位を許容する様に係合している。この為、制動時に於けるキャリパの挙動を安定させて、パッドの偏摩耗及びブレーキ鳴きを抑える事ができる。   As described above, the disc brake combination shim plate of the present invention is similar to the first example of the conventional structure described in Patent Document 1 described above with reference to FIGS. Each inner locking piece is engaged so as to allow relative displacement in the circumferential direction between the inner and outer shim plates. For this reason, the behavior of the caliper during braking can be stabilized, and uneven wear of the pad and brake squeal can be suppressed.

又、本発明のディスクブレーキ用組み合わせシム板は、やはり上記従来構造の第１例の場合と同様に、上記各外側係止片と上記各内側係止片とが、上記両シム板の基板部同士がそれぞれの厚さ方向に離れる事を阻止する状態で係合している。更に、本発明のディスクブレーキ用組み合わせシム板は、内側基板部の周方向両端縁から外側基板部に向け折れ曲がった一対の折れ曲がり片により、上記両シム板が、上記各外側係止片と上記各内側係止片との係合が外れる迄、周方向に変位する事を阻止する。従って、上記両シム板をパッドのプレッシャプレートの背面に組み付ける以前の状態でも、これら両シム板が不用意に分離する事を防止できる。この為、組み合わせシム板の取り扱い性を向上させて、この組み合わせシム板を組み込んだディスクブレーキの組立作業の容易化を図り、このディスクブレーキの製造コストの低廉化を図れる。 Further, in the combination shim plate for disc brake of the present invention, as in the case of the first example of the conventional structure, the outer locking pieces and the inner locking pieces are formed by the base plate portions of the both shim plates. They are engaged in a state in which they are prevented from separating in the thickness direction. Further, the combination shim plate for a disc brake of the present invention includes a pair of bent pieces bent from both circumferential edges of the inner substrate portion toward the outer substrate portion, so that the both shim plates are connected to the outer locking pieces and the respective The circumferential displacement is prevented until the engagement with the inner locking piece is released. Therefore, it is possible to prevent the two shim plates from being carelessly separated even before the two shim plates are assembled to the back surface of the pressure plate of the pad. For this reason, the handleability of the combination shim plate is improved, the assembly work of the disc brake incorporating the combination shim plate is facilitated, and the manufacturing cost of the disc brake can be reduced.

本発明の実施の形態の１例を、内側、外側両シム板同士を組み合わせた状態で示す斜視図。The perspective view which shows one example of embodiment of this invention in the state which combined inner and outer shim board. 同じく分離した状態で示す斜視図。The perspective view similarly shown in the separated state. 内側シム板を外側面側から見た正投影図。The orthographic view which looked at the inner shim board from the outer surface side. 図３の右方から見た正投影図。FIG. 4 is an orthographic view seen from the right side of FIG. 3. 図４のイ部拡大図（Ａ）及び同ロ部拡大図（Ｂ）。FIG. 5 is an enlarged view (A) of FIG. 外側シム板を内側面側から見た正投影図。The orthographic view which looked at the outer side shim board from the inner surface side. 図６の左方から見た正投影図。FIG. 7 is an orthographic projection seen from the left side of FIG. 6. 図７のハ部拡大図（Ａ）及び同ニ部拡大図（Ｂ）。Section C enlarged view (A) and section D enlarged view (B) of FIG. 内側シム板のみをプレッシャプレートの背面に装着した状態を、この内側シム板の外側面側から見た状態で示す正投影図。The orthographic projection figure which shows the state which attached only the inner side shim board to the back surface of the pressure plate in the state seen from the outer surface side of this inner side shim board. 図９のホ−ホ断面図。FIG. 従来構造の第１例を、組み合わせシム板をプレッシャプレートの背面に装着した状態を外側面側から見た状態で示す正投影図。The orthographic projection figure which shows the state which mounted | wore the back surface of the pressure plate with the combination shim board in the state which looked at the 1st example of the conventional structure from the outer surface side. 図１１の拡大ヘ−ヘ断面図。FIG. 12 is an enlarged cross sectional view of FIG. 内側シム板と外側シム板とプレッシャプレートとを分離して外側面側から見た状態で示す正投影図。The orthographic projection figure which shows the state which isolate | separated the inner side shim board, the outer side shim board, and the pressure plate from the outer surface side. 従来構造の第２例を、内側シム板と外側シム板とプレッシャプレートとを分離した状態で示す斜視図。The perspective view which shows the 2nd example of a conventional structure in the state which isolate | separated the inner side shim board, the outer side shim board, and the pressure plate. 同じく組み合わせて外側面側から見た状態で示す正投影図。The orthographic projection shown in the state seen from the outer surface side in the same combination. 従来構造の第３例を、内側シム板と外側シム板とを分離した状態で示す斜視図。The perspective view which shows the 3rd example of conventional structure in the state which isolate | separated the inner side shim board and the outer side shim board.

図１〜１０は、本発明の実施の形態の１例を示している。本例の組み合わせシム板１ａは、図２〜５に示した様な内側シム板４ｃと、図２、６〜８に示した様な外側シム板５ｃとを、図１に示す様に組み合わせて成る。これら両シム板４ｃ、５ｃはそれぞれ、ステンレス鋼板等の弾性及び耐食性を有する金属板を曲げ形成して成る。又、このうちの内側シム板４ｃの両面には、ゴムの如きエラストマー等の弾性材のコーティング層を形成している。この様な弾性材のコーティング層に就いては、従来から周知である。又、上記組み合わせシム板１ａの使用状態では、上記内側シム板４ｃの内側面が、パッド２ｂのプレッシャプレート３ｂ（図９、１０参照）の背面に当接する（この背面部分に添設される）。これに対して、上記外側シム５ｃの外側面が、ピストンの先端面又はキャリパ爪の内側面に当接する。これらの点に就いても、従来から周知である為、詳しい図示並びに説明は省略する。本発明の組み合わせシム板１ａの特徴は、上記両シム板４ｃ、５ｃを図１に示す様に組み合わせた状態で、これら両シム板４ｃ、５ｃが周方向に関して所定長さだけ相対変位可能とすると共に、これら両シム板４ｃ、５ｃ同士が不用意に（特に分離しようとする為の力を加えない限り）分離しない様に組み合わせる構造にある。   1 to 10 show an example of an embodiment of the present invention. The combination shim plate 1a of this example is a combination of an inner shim plate 4c as shown in FIGS. 2 to 5 and an outer shim plate 5c as shown in FIGS. 2 and 6 to 8 as shown in FIG. Become. Both the shim plates 4c and 5c are formed by bending a metal plate having elasticity and corrosion resistance such as a stainless steel plate. Further, a coating layer of an elastic material such as an elastomer such as rubber is formed on both surfaces of the inner shim plate 4c. Such a coating layer of an elastic material has been conventionally known. When the combination shim plate 1a is used, the inner side surface of the inner shim plate 4c abuts on the back surface of the pressure plate 3b (see FIGS. 9 and 10) of the pad 2b (attached to the back surface portion). . On the other hand, the outer surface of the outer shim 5c comes into contact with the tip surface of the piston or the inner surface of the caliper claw. Since these points are also well known in the art, detailed illustration and description are omitted. The feature of the combination shim plate 1a of the present invention is that both the shim plates 4c and 5c can be relatively displaced by a predetermined length in the circumferential direction in a state where the both shim plates 4c and 5c are combined as shown in FIG. At the same time, the shim plates 4c and 5c are combined so as not to be inadvertently separated (particularly unless a force for separating them is applied).

この様な構造とする為に、上記内側シム板４ｃを、特許請求の範囲に記載した内側基板部である基板部７ａと、同じく内径側、外径側各内側係止片である内側係止片６ｄ、６ｅとから構成している。このうちの基板部７ａは平板状で、潤滑剤を保持する為の、それぞれがスリット状である複数の透孔８ａ、８ａを形成している。又、上記各内側係止片６ｄ、６ｅのうちで、上記基板部７ａと同一平面上に位置する基部を除く部分は、この基部に対し、この基板部７ａの厚さ方向に折れ曲がっている。そして、この折れ曲がった部分がそれぞれ、互いに対向する内側面の中間部が突出した（互いに反対側の外側面の中間部が凹んだ）「へ」字形である。   In order to make such a structure, the inner shim plate 4c is connected to the substrate portion 7a which is the inner substrate portion described in the claims, and the inner locking which is the inner locking piece on the inner diameter side and the outer diameter side. It consists of pieces 6d and 6e. Of these, the substrate portion 7a is flat and has a plurality of through holes 8a, 8a each having a slit shape for holding the lubricant. Of the inner locking pieces 6d and 6e, portions other than the base located on the same plane as the substrate portion 7a are bent with respect to the base in the thickness direction of the substrate portion 7a. Each of the bent portions has a “H” shape in which the intermediate portion of the inner side surface facing each other protrudes (the intermediate portion of the outer side surface opposite to each other is recessed).

この様な上記各内側係止片６ｄ、６ｅは、上記基板部７ａの内径側、外径側両端縁から径方向及びこの基板部７ａの厚さ方向に関して片側（上記プレッシャプレート３ｂに近づく側）に突出する状態で形成している。即ち、上記基板部７ａの内径側端縁の周方向両端寄り部分に、それぞれが内径側内側係止片である一対の内側係止片６ｄ、６ｄを、同じく外径側端縁の周方向中央部に、外径側内側係止片である内側係止片６ｅを、それぞれ形成している。更に、上記基板部７ａの周方向両端縁に一対の折れ曲がり片１３、１３を、この基板部７ａの厚さ方向に関して、上記各内側係止片６ｄ、６ｅと反対側（外側シム板５ｃ側）に突出する状態で設けている。尚、これら各内側係止片６ｄ、６ｅ及び次述する外側係止片１０ｅ、１０ｆの形状及び寸法に関しては、基本的には、前述の特許文献１に記載された従来構造と同様である。   Such inner locking pieces 6d and 6e are arranged on one side (side closer to the pressure plate 3b) in the radial direction and the thickness direction of the substrate portion 7a from both inner and outer diameter side edges of the substrate portion 7a. It is formed in a state protruding to That is, a pair of inner locking pieces 6d and 6d, each of which is an inner diameter side inner locking piece, are arranged at the circumferential center of the outer diameter side edge on the both ends in the circumferential direction of the inner diameter side edge of the substrate portion 7a. The inner locking pieces 6e, which are outer diameter side inner locking pieces, are formed in the respective portions. Further, a pair of bent pieces 13 and 13 are provided at both circumferential edges of the substrate portion 7a with respect to the thickness direction of the substrate portion 7a on the side opposite to the inner locking pieces 6d and 6e (outer shim plate 5c side). It is provided in a state protruding. The shapes and dimensions of the inner locking pieces 6d and 6e and the outer locking pieces 10e and 10f described below are basically the same as those of the conventional structure described in Patent Document 1 described above.

又、上記外側シム板５ｃは、特許請求の範囲に記載した外側基板部である、平板状の基板部９ａと、同じく内径側、外径側各外側係止片である外側係止片１０ｅ、１０ｆとから構成している。上記基板部９ａは、上記内側シム板４ｃの基板部７ａとは異なり、無孔である。又、上記各外側係止片１０ｅ、１０ｆは、この内側シム板４ｃを構成する、上記各内側係止片６ｄ、６ｅと同様の形状を有するもので、上記基板部９ａの内径側、外径側両端縁から径方向及びこの基板部９ａの厚さ方向に関して片側（上記プレッシャプレート３ｂに近づく側）に突出する状態で形成している。即ち、上記基板部９ａの内径側端縁の周方向両端寄り部分に、それぞれが内径側外側係止片である一対の外側係止片１０ｅ、１０ｅを、同じく外径側端縁の周方向中央部に、外径側外側係止片である外側係止片１０ｆを、それぞれ形成している。又、周方向に関する上記外側シム板５ｃの長さ寸法（特許請求の範囲に記載した周方向長さ）Ｌ5c（図６参照）は、同方向に関する、上記両折れ曲がり片１３、１３同士の間隔Ｄ13（図３参照）よりも小さい（Ｌ5c＜Ｄ13）。 Further, the outer shim plate 5c includes a flat plate-like substrate portion 9a which is an outer substrate portion described in the claims, and outer locking pieces 10e which are outer locking pieces on the inner diameter side and the outer diameter side. 10f. Unlike the substrate portion 7a of the inner shim plate 4c, the substrate portion 9a is non-porous. The outer locking pieces 10e and 10f have the same shape as the inner locking pieces 6d and 6e constituting the inner shim plate 4c, and the inner diameter side and outer diameter of the substrate portion 9a. It forms in the state which protrudes to one side (side approaching the said pressure plate 3b) with respect to the radial direction and the thickness direction of this board | substrate part 9a from a both-ends edge. That is, a pair of outer locking pieces 10e and 10e, each of which is an inner diameter side outer locking piece, are arranged in the circumferential direction center of the outer diameter side edge at the both ends in the circumferential direction of the inner diameter side edge of the substrate portion 9a. The outer locking pieces 10f, which are outer diameter side outer locking pieces, are formed in the respective portions. Further, the length dimension (circumferential length described in the claims) L 5c (see FIG. 6) of the outer shim plate 5c in the circumferential direction is the distance between the bent pieces 13, 13 in the same direction. It is smaller than D 13 (see FIG. 3) (L 5c <D 13 ).

上記各内側係止片６ｄ、６ｅ及び上記各外側係止片１０ｅ、１０ｆは、これら各内側係止片６ｄ、６ｅの外側面（互いに反対側の面）側に、これら各外側係止片１０ｅ、１０ｆを位置させられる様に、径方向に関するピッチ（図４、７の上下方向に関する間隔）及び周方向に関する位相を規制している。そして、上記各内側係止片６ｄ、６ｅの外側面の中間部で凹んだ部分に、上記各外側係止片１０ｅ、１０ｆの内側面の中間部で突出した部分を、弾性的に当接若しくは微小隙間を介して対向させている。これら各係止片６ｄ、６ｅ、１０ｅ、１０ｆの内外両側面の幅方向（周方向、前記組み合わせシム板１ａの長さ方向、図１〜３、６、９の左右方向）は、互いに平行である。従って、上述の様に上記各内側係止片６ｄ、６ｅと上記各外側係止片１０ｅ、１０ｆとを係合させた状態で、上記内側シム板４ｃと上記外側シム板５ｃとは、これら各係止片６ｄ、６ｅ、１０ｅ、１０ｆのうちの少なくとも一部を弾性変形しない限り、互いに厚さ方向に離れる事はなくなる。これに対して、周方向には、上記外側シム板５ｃの長さ寸法Ｌ5cと上記両折れ曲がり片１３、１３同士の間隔Ｄ13の差（Ｄ13−Ｌ5c）分だけ、相対変位可能になる。 The inner locking pieces 6d and 6e and the outer locking pieces 10e and 10f are arranged on the outer side surfaces (surfaces opposite to each other) of the inner locking pieces 6d and 6e. 10f, the pitch in the radial direction (interval in the vertical direction in FIGS. 4 and 7) and the phase in the circumferential direction are regulated. Then, the portion protruding at the intermediate portion of the inner side surface of each of the outer locking pieces 10e, 10f is elastically abutted on the portion recessed at the intermediate portion of the outer side surface of each of the inner locking pieces 6d, 6e. It is opposed through a minute gap. The width direction (circumferential direction, the length direction of the combination shim plate 1a, the left-right direction in FIGS. 1-3, 6 and 9) of the inner and outer side surfaces of each of the locking pieces 6d, 6e, 10e and 10f is parallel to each other. is there. Accordingly, the inner shim plate 4c and the outer shim plate 5c are respectively connected to the inner locking pieces 6d, 6e and the outer locking pieces 10e, 10f as described above. As long as at least a part of the locking pieces 6d, 6e, 10e, and 10f is not elastically deformed, they are not separated from each other in the thickness direction. In contrast, in the circumferential direction, the difference between the outer shim plate 5c of the length dimension L 5c and the both bending pieces 13, 13 between the spacing D 13 (D 13 -L 5c) content only, relatively displaceable manner Become.

但し、上記各係止片６ｄ、６ｅ、１０ｅ、１０ｆ同士の係合に基づいて上記内側シム板４ｃと上記外側シム板５ｃとを、上記差（Ｄ13−Ｌ5c）分だけ周方向に関して何れの方向に相対変位させた場合でも、上記各係止片６ｄ、６ｅ、１０ｅ、１０ｆ同士の係合が外れない様にしている。即ち、これら各係止片６ｄ、６ｅ、１０ｅ、１０ｆの周方向に関する幅と、上記間隔Ｄ13と、上記長さ寸法Ｌ5cとを規制している。具体的には、互いに係合する上記各内側係止片６ｄ、６ｅと上記各外側係止片１０ｅ、１０ｆとのうちの少なくとも一方の係止片の周方向に関する幅を十分に確保して、上記相対変位に拘らず、上記各係止片６ｄ、６ｅ、１０ｅ、１０ｆ同士が、少なくとも幅方向の一部同士で互いに係合する様にしている。 However, any of the inner shim plate 4c and the outer shim plate 5c in the circumferential direction by the difference (D 13 -L 5c ) based on the engagement between the locking pieces 6d, 6e, 10e, and 10f. Even when the relative displacement is made in the direction, the engagement pieces 6d, 6e, 10e, and 10f are prevented from being disengaged. That is, each of these locking pieces 6d, the width 6e, 10e, the circumferential direction 10f, and the distance D 13, and regulates the said length dimension L 5c. Specifically, the width in the circumferential direction of at least one of the inner locking pieces 6d, 6e and the outer locking pieces 10e, 10f that are engaged with each other is sufficiently secured, Regardless of the relative displacement, the locking pieces 6d, 6e, 10e, and 10f are engaged with each other at least partially in the width direction.

上述の様に本例の組み合わせシム板１ａは、前述の図１１〜１３で説明した、特許文献１に記載された従来構造の第１例の場合と同様に、上記各内側係止片６ｄ、６ｅと上記各外側係止片１０ｅ、１０ｆとが、上記内側、外側両シム板４ｃ、５ｃ同士の周方向に関する相対変位を許容する様に係合している。この為、制動時に於けるキャリパの挙動を安定させて、パッド２ｂの偏摩耗及びブレーキ鳴きを抑える事ができる。   As described above, the combination shim plate 1a of this example is similar to the case of the first example of the conventional structure described in Patent Document 1 described above with reference to FIGS. 6e and the respective outer locking pieces 10e, 10f are engaged so as to allow relative displacement in the circumferential direction between the inner and outer shim plates 4c, 5c. For this reason, the behavior of the caliper during braking can be stabilized and uneven wear and brake squealing of the pad 2b can be suppressed.

又、本例の組み合わせシム板１ａは、やはり上記従来構造の第１例の場合と同様に、上記各内側係止片６ｄ、６ｅと上記各外側係止片１０ｅ、１０ｆとが、上記両シム板４ｃ、５ｃの基板部７ａ、９ａ同士がそれぞれの厚さ方向に離れる事を阻止する状態で係合している。更に、本例の組み合わせシム板１ａは、上記内側シム板４ｃに設けた前記両折れ曲がり片１３、１３により、この内側シム板４ｃに対する上記外側シム板５ｃの、周方向に関する変位量を抑えている為、この周方向の相対変位に伴って、上記各内側係止片６ｄ、６ｅと上記各外側係止片１０ｅ、１０ｆとの係合が外れる事はない。従って、上記両シム板４ｃ、５ｃを上記パッド２ｂのプレッシャプレート３ｂの背面に組み付ける以前の状態でも、上記両シム板４ｃ、５ｃが不用意に分離する事を防止できる。この為、上記組み合わせシム板１ａの取り扱い性を向上させて、この組み合わせシム板１ａを組み込んだディスクブレーキの組立作業の容易化を図り、このディスクブレーキの製造コストの低廉化を図れる。   Also, the combination shim plate 1a of this example is similar to the case of the first example of the conventional structure described above, in that the inner locking pieces 6d, 6e and the outer locking pieces 10e, 10f The board portions 7a and 9a of the plates 4c and 5c are engaged with each other in a state in which they are prevented from separating in the thickness direction. Furthermore, the combination shim plate 1a of this example suppresses the amount of displacement in the circumferential direction of the outer shim plate 5c with respect to the inner shim plate 4c by the bent pieces 13, 13 provided on the inner shim plate 4c. For this reason, the inner locking pieces 6d, 6e and the outer locking pieces 10e, 10f are not disengaged with the relative displacement in the circumferential direction. Accordingly, the shim plates 4c and 5c can be prevented from being carelessly separated even before the shim plates 4c and 5c are assembled to the back surface of the pressure plate 3b of the pad 2b. Therefore, the handleability of the combination shim plate 1a is improved, the assembly work of the disc brake incorporating the combination shim plate 1a is facilitated, and the manufacturing cost of the disc brake can be reduced.

尚、上記両シム板４ｃ、５ｃが不用意に分離する事を防止して上記組み合わせシム板１ａの取り扱い性を向上させる事の利点は、互いに組み合わせた状態で使用される、上記両シム板４ｃ、５ｃを一体的に取り扱える事で得られる。即ち、上記組み合わせシム板１ａの製造工場からディスクブレーキの組立現場迄、図１に示す様に上記両シム板４ｃ、５ｃを組み合わせた状態で搬送できる事により十分に得られる。勿論、これら両シム板４ｃ、５ｃを組み合わせた状態のまま、上記組み合わせシム板１ａを上記プレッシャプレート３ｂの背面に組み付ければ、この組み合わせシム板１ａの組み付け作業の単純化を図れる。この場合には、上記内側シム板４ｃの内面側にグリース等の潤滑剤を塗布してから、上記組み合わせシム板１ａを上記プレッシャプレート３ｂの背面に組み付ける。但し、上記内側シム板４ｃの外面側（この内側シム板４ｃと上記外側シム板５ｃとの突き合わせ面側）にグリース等の潤滑剤を塗布したい等の事情があれば、図９〜１０に示す様に、上記内側シム板４ｃを上記プレッシャプレート３ｂの背面に組み付けて、この内側シム板４ｃの外側面に潤滑剤を塗布してから、この内側シム板４ｃに上記外側シム板５ｃを組み付ける事もできる。又、上記潤滑剤は、これら両シム板４ｃ、５ｃを組み合わせる以前に、このうちの内側シム板４ｃに塗布しておく事もできる。何れの場合でも、上記プレッシャプレート３ｂの背面に上記組み合わせシム板１ａを組み付けた状態では、この組み合わせシム板１ａと上記パッド２ｂとが、不用意に分離しない様に組み合わされる。   The advantage of preventing the two shim plates 4c and 5c from being inadvertently separated and improving the handleability of the combined shim plate 1a is that the two shim plates 4c are used in combination with each other. 5c can be obtained as a single unit. That is, it can be sufficiently obtained by transporting the shim plates 4c and 5c in a combined state as shown in FIG. 1 from the manufacturing factory of the combined shim plate 1a to the assembly site of the disc brake. Of course, if the combination shim plate 1a is assembled to the back surface of the pressure plate 3b while the two shim plates 4c and 5c are combined, the assembling work of the combination shim plate 1a can be simplified. In this case, after applying a lubricant such as grease to the inner surface side of the inner shim plate 4c, the combination shim plate 1a is assembled to the back surface of the pressure plate 3b. However, if there is a situation such as applying a lubricant such as grease to the outer surface side of the inner shim plate 4c (the abutting surface side of the inner shim plate 4c and the outer shim plate 5c), it is shown in FIGS. Similarly, the inner shim plate 4c is assembled to the back surface of the pressure plate 3b, the lubricant is applied to the outer surface of the inner shim plate 4c, and then the outer shim plate 5c is assembled to the inner shim plate 4c. You can also. The lubricant can be applied to the inner shim plate 4c before combining the shim plates 4c and 5c. In any case, in a state where the combination shim plate 1a is assembled to the back surface of the pressure plate 3b, the combination shim plate 1a and the pad 2b are combined so as not to be carelessly separated.

本発明を実施する場合に、内側シム板４ｃと外側シム板５ｃとは直接当接させても良いが、前述した特許文献１の図４に示す様に、内側シム板と外側シム板との間に、係止片等を持たない、単なる平板状の、或いは平板状で潤滑剤保持用の透孔を形成した、中間シム板を挟持しても良い。この中間シム板に関しても、自身の外周縁部と、上記内側、外側両シム板に形成した各係止片及び折れ曲げ片との係合により、これら内側、外側両シム板同士の間から不用意に抜け出る事はない。   In carrying out the present invention, the inner shim plate 4c and the outer shim plate 5c may be in direct contact with each other. However, as shown in FIG. An intermediate shim plate that does not have a locking piece or the like and that has a flat plate shape or a flat plate shape that has a through hole for retaining a lubricant may be sandwiched. With respect to the intermediate shim plate, the inner peripheral edge of the intermediate shim plate and the locking pieces and the bent pieces formed on the inner and outer shim plates are engaged with each other. Never get out of the way.

１、１ａ 組み合わせシム板
２、２ａ、２ｂ パッド
３、３ａ、３ｂ プレッシャプレート
４、４ａ、４ｂ、４ｃ 内側シム板
５、５ａ、５ｂ、５ｃ 外側シム板
６ａ、６ｂ、６ｃ、６ｄ、６ｅ 内側係止片
７、７ａ 基板部
８、８ａ 透孔
９、９ａ 基板部
１０ａ、１０ｂ、１０ｃ、１０ｄ、１０ｅ、１０ｆ 外側係止片
１１ 係合爪
１２ 切り欠き
１３ 折れ曲がり片 1, 1a Combination shim plate 2, 2a, 2b Pad 3, 3a, 3b Pressure plate 4, 4a, 4b, 4c Inner shim plate 5, 5a, 5b, 5c Outer shim plate 6a, 6b, 6c, 6d, 6e Inner engagement Stopping piece 7, 7a Substrate part 8, 8a Through hole 9, 9a Substrate part 10a, 10b, 10c, 10d, 10e, 10f Outer locking piece 11 Engaging claw 12 Notch 13 Bending piece

Claims (1)

ディスクブレーキ用のパッドを構成するプレッシャプレートの背面に添設される内側シム板と、この内側シム板に直接又は他の部材を介して重ねられた外側シム板とを備え、
このうちの内側シム板は、平板状の内側基板部と、この内側基板部の内径側、外径側両端縁から径方向及び厚さ方向に突出した内径側、外径側各内側係止片とを備えたものであり、
上記外側シム板は、平板状の外側基板部と、この外側基板部の内径側、外径側両端縁から径方向及び厚さ方向に突出した内径側、外径側各外側係止片を備えたものであり、
これら各内径側、外径側各外側係止片の先端寄り部分の内側面が、上記各内径側、外径側各内側係止片の先端寄り部分の外側面に当接若しくは近接対向する事により、上記内側基板部と上記外側基板部とがそれぞれの厚さ方向に離れる事を阻止しているディスクブレーキ用組み合わせシム板に於いて、
上記外側シム板と上記内側シム板との間に、これら両シム板同士の周方向への相対変位を規制する為の規制手段として、上記内側基板部の周方向両端縁から上記外側基板部に向け折れ曲がった一対の折れ曲がり片を設け、これら両折れ曲がり片の互いに対向する側面同士の間隔を、上記外側基板部の周方向長さよりも大きくする事により、上記内側シム板を上記外側シム板に対し、上記間隔と上記周方向長さとの差に応じた長さ分だけ周方向に変位可能とすると共に、この長さ分だけ、上記内側シム板と上記外側シム板とを周方向に相対変位させた状態でも、上記各外側係止片と上記各内側係止片との係合が外れない様に、これら各係止片の周方向に関する幅と、上記間隔と、上記周方向長さとを規制する事で、互いに組み合わされた上記外側、内側両シム板が、上記パッドプレッシャプレートの背面に組み付ける以前に於いても不用意に分離しない様にしている事を特徴とするディスクブレーキ用組み合わせシム板。 An inner shim plate attached to the back surface of the pressure plate constituting the pad for the disc brake, and an outer shim plate superimposed on the inner shim plate directly or via another member;
Of these, the inner shim plate is composed of a flat plate-like inner substrate portion and inner and outer diameter side locking pieces protruding in the radial direction and the thickness direction from both inner and outer diameter side edges of the inner substrate portion. And with
The outer shim plate includes a flat plate-shaped outer substrate portion, and inner and outer diameter side locking pieces protruding in the radial direction and the thickness direction from both inner and outer diameter side edges of the outer substrate portion. And
The inner side surface of the inner diameter side of each of the inner diameter side and outer diameter side outer locking pieces is in contact with or close to the outer surface of the inner diameter side of each inner diameter side and outer diameter side inner locking piece. In the combination shim plate for disc brakes that prevents the inner substrate portion and the outer substrate portion from separating in the respective thickness directions,
Between the outer shim plate and the inner shim plate, as a restricting means for restricting the relative displacement of the two shim plates in the circumferential direction from both circumferential edges of the inner substrate portion to the outer substrate portion. By providing a pair of bent pieces that are bent toward each other, and by making the distance between the side surfaces facing each other of the bent pieces larger than the circumferential length of the outer substrate portion, the inner shim plate is made to be opposite to the outer shim plate. The inner shim plate and the outer shim plate are relatively displaced in the circumferential direction by the length corresponding to the difference between the distance and the circumferential length. Even in this state, the width, the interval, and the circumferential length of the locking pieces are regulated so that the engagement between the outer locking pieces and the inner locking pieces is not released. it is to be, the outer combined with each other , The inner two shim plates, the pad pressure plate combination shim plate disc brake which, characterized in that in the manner not inadvertently separated even in a previously assembled to the back of.
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US20220154790A1 (en) * 2019-04-17 2022-05-19 Hitachi Astemo, Ltd. Disc brake and laminated shim

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JP5855398B2 (en) * 2011-09-13 2016-02-09 曙ブレーキ工業株式会社 Disc brake pad assembly
JP6762900B2 (en) * 2017-03-28 2020-09-30 曙ブレーキ工業株式会社 Laminated shims for disc brakes

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US20220154790A1 (en) * 2019-04-17 2022-05-19 Hitachi Astemo, Ltd. Disc brake and laminated shim

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