JP2005207443A - Noise preventing shim for disc braking device - Google Patents

Noise preventing shim for disc braking device Download PDF

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Publication number
JP2005207443A
JP2005207443A JP2004011723A JP2004011723A JP2005207443A JP 2005207443 A JP2005207443 A JP 2005207443A JP 2004011723 A JP2004011723 A JP 2004011723A JP 2004011723 A JP2004011723 A JP 2004011723A JP 2005207443 A JP2005207443 A JP 2005207443A
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component plate
plate
component
shim
brake device
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JP2004011723A
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JP4285250B2 (en
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Takeshi Naito
剛 内藤
Nobuo Terasaki
信夫 寺崎
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Kokusan Parts Industry Co Ltd
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Kokusan Parts Industry Co Ltd
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Priority to DE200510002762 priority patent/DE102005002762A1/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/0006—Noise or vibration control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D65/04—Bands, shoes or pads; Pivots or supporting members therefor
    • F16D65/092—Bands, shoes or pads; Pivots or supporting members therefor for axially-engaging brakes, e.g. disc brakes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D65/04—Bands, shoes or pads; Pivots or supporting members therefor
    • F16D65/092—Bands, shoes or pads; Pivots or supporting members therefor for axially-engaging brakes, e.g. disc brakes
    • F16D65/095—Pivots or supporting members therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D65/04—Bands, shoes or pads; Pivots or supporting members therefor
    • F16D65/092—Bands, shoes or pads; Pivots or supporting members therefor for axially-engaging brakes, e.g. disc brakes
    • F16D65/095—Pivots or supporting members therefor
    • F16D65/097—Resilient means interposed between pads and supporting members or other brake parts
    • F16D65/0971—Resilient means interposed between pads and supporting members or other brake parts transmitting brake actuation force, e.g. elements interposed between brake piston and pad
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D65/04—Bands, shoes or pads; Pivots or supporting members therefor
    • F16D65/092—Bands, shoes or pads; Pivots or supporting members therefor for axially-engaging brakes, e.g. disc brakes
    • F16D65/095—Pivots or supporting members therefor
    • F16D65/097—Resilient means interposed between pads and supporting members or other brake parts
    • F16D65/0972—Resilient means interposed between pads and supporting members or other brake parts transmitting brake reaction force, e.g. elements interposed between torque support plate and pad
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D65/04—Bands, shoes or pads; Pivots or supporting members therefor
    • F16D65/092—Bands, shoes or pads; Pivots or supporting members therefor for axially-engaging brakes, e.g. disc brakes
    • F16D65/095—Pivots or supporting members therefor
    • F16D65/097—Resilient means interposed between pads and supporting members or other brake parts
    • F16D65/0973—Resilient means interposed between pads and supporting members or other brake parts not subjected to brake forces
    • F16D65/0979—Resilient means interposed between pads and supporting members or other brake parts not subjected to brake forces acting on the rear side of the pad or an element affixed thereto, e.g. spring clips securing the pad to the brake piston or caliper
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
    • F16D69/04—Attachment of linings

Abstract

<P>PROBLEM TO BE SOLVED: To provide a noise preventing shim for a disc braking device for effectively preventing the generation of noises. <P>SOLUTION: The noise preventing shim 8 of the disc braking device is mounted like a lamination layer on the reverse face of a backing metal 10 of a brake pad 7. The shim comprises a first constitution plate 20 arranged like a lamination layer on the reverse face side of the backing metal 10, a second constitution plate 30 that forms an opening 33 in a part of the region facing a caliper claw or a piston and is disposed like a lamination layer on the first constitution plate 20, and a third constitution plate 40 arranged like a lamination layer on the first constitution plate 20 in the opening 33 in the second constitution plate 30. A rubber coating layer is disposed on the third constitution plate 40, and the third constitution plate 40 is set thicker than the second constitution plate 30, and can be compressed and deformed to the thickness or less of the second constitution plate 30 in a natural state by the pressing force in operation of the braking device. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は、ディスクブレーキ装置の鳴き防止シムに関する。   The present invention relates to a squeal prevention shim for a disc brake device.

自動車のディスクブレーキ装置として、キャリパ爪とキャリパ本体とを有し、ブレーキディスクの外周部の両側にブレーキディスクを跨いで設けられるキャリパと、キャリパのキャリパ本体に組み込んだピストンと、キャリパ爪及びピストンとブレーキディスク間にそれぞれ設けたブレーキパッドとを備えたものが広く実用化されている。   As a disc brake device for an automobile, a caliper having a caliper claw and a caliper body, a caliper provided across the brake disc on both sides of the outer periphery of the brake disc, a piston incorporated in the caliper body of the caliper, a caliper claw and a piston, Those equipped with brake pads provided between the brake discs have been widely put into practical use.

この種のディスクブレーキ装置では、制動時に発生する鳴きと呼ばれる異音を防止するために、ブレーキパッドの裏金の裏面側に鳴き防止シムを取付け、この鳴き防止シムを介在させた状態でキャリパ爪とピストンとでブレーキパッドを相互に接近する方向へ押圧して、両ブレーキパッド間にブレーキディスクを挟持するように構成されている。   In this type of disc brake device, a squeal prevention shim is attached to the back side of the back pad of the brake pad in order to prevent an abnormal noise called squeal that occurs during braking, and the caliper pawl and The brake pads are pressed in a direction approaching each other by the piston, and the brake disc is sandwiched between the two brake pads.

前記鳴き防止シムは、ステンレス鋼板などの金属板からなる構成板、またはこの金属板にゴムコーティングを施した構成板からなり、この構成板を１枚だけ用いた単板構成や、この構成板を２枚以上積層状に重ね合わせた複板構成のものなどが広く採用されている（例えば、特許文献１参照。）。   The squeal prevention shim comprises a component plate made of a metal plate such as a stainless steel plate, or a component plate obtained by applying a rubber coating to the metal plate, and a single plate configuration using only this component plate or this component plate. The thing of the double-plate structure etc. which piled up two or more sheets in the laminated form is employ | adopted widely (for example, refer patent document 1).

特開平８−３２６７９７号公報JP-A-8-326797

ところで、制動時における鳴き発生の有無は、車体重量や車体の重量バランスなどに依存して変化する非常にデリケートなもので、前述のようにシムを設けた場合においても、全ての車種で鳴きを防止できる分けではなく、作業現場では、予め金属板の板厚やコーティング層の厚みや材質などを種々変更した複数種類のシムを用意しておき、鳴きが発生する場合には、シムを順次交換するという大変煩雑な調整作業を行なっている。   By the way, the presence or absence of squeal during braking changes depending on the weight of the car body and the weight balance of the car body, and it is a very delicate thing. It is not a division that can be prevented, but at the work site, several types of shims with various changes in the thickness of the metal plate, the thickness of the coating layer and the material are prepared in advance. This is a very complicated adjustment work.

本発明の目的は、鳴きの発生を効果的に防止し得るディスクブレーキ装置の鳴き防止シムを提供することである。   An object of the present invention is to provide a squeal prevention shim for a disc brake device that can effectively prevent squeal.

本出願人は、同じ鳴き防止シムであっても、ブレーキ装置の作動状態、つまりブレーキペダルを軽く踏み込んだときと、強く踏み込んだときによって、鳴きの発生が変化することに着目し、ブレーキ装置の作動状態に応じて鳴き防止シムの特性を変化させることで、より一層効果的に鳴きを防止できるとの発想を得て、本発明を完成するに至った。   The present applicant pays attention to the fact that the occurrence of squeal changes depending on the operating state of the brake device, that is, when the brake pedal is lightly depressed and when it is strongly depressed, even with the same squeal prevention shim. By changing the characteristics of the squeal prevention shim according to the operating state, the idea that squeal can be prevented more effectively was obtained, and the present invention was completed.

本発明に係るディスクブレーキ装置の第１の鳴き防止シムは、ブレーキパッドの裏金の裏面側に積層状に取付けられる複数枚の構成板からなるディスクブレーキ装置の鳴き防止シムにおいて、前記裏金の裏面側に積層状に配置される第１構成板と、キャリパ爪又はピストンに対面する圧接領域の一部に開口部を形成し、第１構成板に積層状に設けた第２構成板と、前記第２構成板の開口部内において第１構成板に積層状に設けた第３構成板とを備え、前記第２構成板又は第３構成板のうち、一方の構成板の板厚を他方の構成板よりも厚肉に構成するとともに、ブレーキ装置の作動時の押圧力で自然状態における他方の構成板の板厚以下に圧縮変形可能に構成したものである。   The first squeal prevention shim of the disc brake device according to the present invention is a squeal prevention shim of a disc brake device comprising a plurality of component plates attached in a laminated manner to the back side of the back metal of the brake pad. A first component plate arranged in a stack, a second component plate formed in a stack on the first component plate, wherein an opening is formed in a part of the pressure contact area facing the caliper claw or the piston, A third component plate provided in a stacked manner on the first component plate in the opening of the second component plate, and the thickness of one component plate of the second component plate or the third component plate is set to the other component plate In addition, it is configured to be thicker than the thickness of the other component plate in the natural state by the pressing force during operation of the brake device.

この第１の鳴き防止シムにおいては、ブレーキディスクに対するブレーキパッドの押圧力が比較的小さいときには、第２構成板又は第３構成板のうちの厚肉に構成した一方の構成板と第１構成板のみが押圧され、薄肉に構成した他方の構成板は押圧されないことになるが、ブレーキパッドの押圧力が大きくなって、第２構成板及び第３構成板の板厚が同じになるまで一方の構成板が圧縮変形すると、第２構成板及び第３構成板の双方と第１構成板とが押圧されることになる。つまり、ブレーキディスクに対するブレーキパッドの押圧力に応じて、鳴き防止シムの特性が２段階に切り換えられ、ブレーキ装置の作動状態に応じて効果的に鳴きが防止されることになる。但し、第２構成板の開口部に厚さの異なる複数種類の第３構成板を設けたり、第２構成板に複数の開口部を設けて、これら複数の開口部に厚さの異なる第３構成板を設けたりして、ブレーキ装置の作動状態に応じて複数段階に鳴き防止シムの特性を調整できるように構成することも可能である。   In the first squeal prevention shim, when the pressing force of the brake pad against the brake disk is relatively small, one of the second component plate or the third component plate and the first component plate configured to be thick. Only the other component plate, which is configured to be thin, will not be pressed, but one of the second component plate and the third component plate becomes the same until the pressing force of the brake pad is increased. When the component plate is compressed and deformed, both the second component plate and the third component plate and the first component plate are pressed. That is, the characteristic of the squeal prevention shim is switched in two stages according to the pressing force of the brake pad against the brake disc, and the squeal is effectively prevented according to the operating state of the brake device. However, a plurality of types of third component plates having different thicknesses are provided in the openings of the second component plates, or a plurality of openings are provided in the second component plates, and thirds having different thicknesses in the plurality of openings. It is also possible to provide a component plate so that the characteristics of the squeal prevention shim can be adjusted in a plurality of stages according to the operating state of the brake device.

ここで、前記第１構成板をキャリパ爪又はピストンに対面するように配置し、第２構成板及び第３構成板を裏金側に配置すること、前記一方の構成板に圧縮変形可能な素材からなる板厚調整層を積層状に設けること、前記一方の構成板の外面部に圧縮変形可能な素材からなる板厚調整層を積層状に設け、他方の構成板を金属製の基板で構成すること、前記第２構成板及び第３構成板を第１構成板に接着すること、前記第２構成板及び第３構成板を第１構成板に異種素材の接着剤で接着すること、前記第２構成板の開口部に第３構成板を略隙間無く設けること、などが好ましい実施例である。   Here, the first component plate is disposed so as to face the caliper claw or the piston, the second component plate and the third component plate are disposed on the back metal side, and the one component plate is made of a material that can be compressed and deformed. The plate thickness adjusting layer is provided in a laminated form, the plate thickness adjusting layer made of a compressible deformable material is provided in a laminated form on the outer surface portion of the one constituent plate, and the other constituent plate is configured by a metal substrate. Adhering the second component plate and the third component plate to the first component plate; adhering the second component plate and the third component plate to the first component plate with an adhesive of a different material; It is a preferred embodiment that the third component plate is provided in the opening of the two component plate with substantially no gap.

本発明に係るディスクブレーキ装置の第２の鳴き防止シムは、ブレーキパッドの裏金の裏面側に取付けられる単又は複数の構成板からなるディスクブレーキ装置の鳴き防止シムにおいて、少なくとも１枚の構成板におけるキャリパ爪又はピストンとの対面部分を複数の圧接領域に区画し、該構成板に、圧縮変形可能な素材からなる厚さの異なる板厚調整層を圧接領域毎に積層状に設けたものである。   The second squeal prevention shim of the disc brake device according to the present invention is a squeal prevention shim of a disc brake device comprising one or a plurality of component plates attached to the back side of the back metal of the brake pad. The facing portion of the caliper pawl or piston is partitioned into a plurality of pressure contact areas, and the plate thickness adjusting layer made of a material that can be compressed and deformed is provided in a laminated form for each pressure contact area on the component plate. .

この第２の鳴き防止シムにおいては、ブレーキディスクに対するブレーキパッドの押圧力が比較的小さいときには、厚肉な板厚調整層のみが押圧され、薄肉な板厚調整層は押圧されないことになるが、ブレーキパッドの押圧力が大きくなって、厚肉の板厚調整層が薄肉の板厚調整層と同じ厚さになると、圧接領域全体の板厚調整層が押圧されることになる。つまり、ブレーキディスクに対するブレーキパッドの押圧力に応じて、鳴き防止シムの特性が段階的或いは連続的に切り換えられ、ブレーキ装置の作動状態に応じて効果的に鳴きが防止されることになる。   In this second squeal prevention shim, when the pressing force of the brake pad against the brake disc is relatively small, only the thick plate thickness adjusting layer is pressed, and the thin plate thickness adjusting layer is not pressed. When the pressing force of the brake pad is increased and the thick plate thickness adjusting layer has the same thickness as the thin plate thickness adjusting layer, the plate thickness adjusting layer in the entire pressure contact area is pressed. That is, the characteristics of the squeal prevention shim are switched stepwise or continuously in accordance with the pressing force of the brake pad against the brake disc, and the squeal is effectively prevented according to the operating state of the brake device.

ここで、前記厚さの異なる板厚調整層を硬さの異なる素材で構成することが好ましい実施例である。   Here, it is a preferred embodiment that the plate thickness adjusting layers having different thicknesses are made of materials having different hardnesses.

本発明に係るディスクブレーキ装置の第１及び第２の鳴き防止シムによれば、ブレーキ装置の作動状態に応じて鳴き防止シムの特性が段階的或いは連続的に切り換わるので、効果的に鳴きを防止できる。しかも、第２の鳴き防止シムによれば、構成板に厚さの異なる板厚調整層を圧接領域毎にそれぞれ別個に積層状に設けるだけなので、鳴き防止シムを安価に製作できる。   According to the first and second squeal prevention shims of the disc brake device according to the present invention, the characteristics of the squeal prevention shim are switched stepwise or continuously in accordance with the operating state of the brake device. Can be prevented. In addition, according to the second squeal prevention shim, the squeal prevention shim can be manufactured at low cost because the plate thickness adjusting layers having different thicknesses are provided separately for each pressure contact region in a laminated manner.

ここで、第１の鳴き防止シムにおいて、前記第１構成板をキャリパ爪又はピストンに対面するように配置し、第２構成板及び第３構成板を裏金側に配置してもよい。この場合には、第２構成板及び第３構成板と、キャリパ爪又はピストン間に第１構成板が介装されるので、第２構成板及び第３構成板に対しては、キャリパ爪及びピストンからの押圧力が、キャリパ爪やピストンに対応する部分だけでなくその周辺にも作用することになり、より一層効果的に鳴きを防止することが可能となる。   Here, in the first squeal prevention shim, the first component plate may be disposed so as to face the caliper claw or the piston, and the second component plate and the third component plate may be disposed on the back metal side. In this case, since the first component plate is interposed between the second component plate and the third component plate and the caliper claw or the piston, the caliper claw and the third component plate The pressing force from the piston acts not only on the caliper pawl and the part corresponding to the piston but also on the periphery thereof, and it is possible to prevent the noise more effectively.

前記一方の構成板に圧縮変形可能な素材からなる板厚調整層を積層状に設けると、部品点数を増やすことなく、一方の構成板を製作できる。   If a plate thickness adjusting layer made of a material that can be deformed in compression is provided on the one component plate, one component plate can be manufactured without increasing the number of components.

前記一方の構成板の外面部に圧縮変形可能な素材からなる板厚調整層を積層状に設け、他方の構成板を金属製の基板で構成すると、他方の構成板がストッパーとして機能し、板厚調整層に過剰な押圧力が作用することによる、板厚調整層の剥離を効果的に防止できる。   When a plate thickness adjusting layer made of a material that can be compressively deformed is provided on the outer surface portion of the one component plate in a stacked manner, and the other component plate is formed of a metal substrate, the other component plate functions as a stopper, Peeling of the plate thickness adjusting layer due to an excessive pressing force acting on the thickness adjusting layer can be effectively prevented.

前記第２構成板及び第３構成板を第１構成板に接着すると、ブレーキパッドの裏金に対する鳴き防止シムの組付性を向上できる。   When the second component plate and the third component plate are bonded to the first component plate, it is possible to improve the assembling property of the squeal prevention shim to the back pad of the brake pad.

前記第２構成板及び第３構成板を第１構成板に異種素材の接着剤で接着すると、ブレーキパッドの裏金に対する鳴き防止シムの組付性を向上できるとともに、接着剤を板厚調整層として利用することが可能となり、鳴き防止シムの構成を簡略にできる。   When the second component plate and the third component plate are bonded to the first component plate with an adhesive of a different material, the assembling property of the squeal prevention shim to the back metal of the brake pad can be improved, and the adhesive is used as a plate thickness adjusting layer. This makes it possible to simplify the structure of the squeal prevention shim.

前記第２構成板の開口部に第３構成板を略隙間無く設けると、第２構成板に対する第３構成板の組付精度を向上できる。   When the third component plate is provided in the opening of the second component plate without a substantial gap, the assembly accuracy of the third component plate with respect to the second component plate can be improved.

ここで、第２の鳴き防止シムにおいて、前記厚さの異なる板厚調整層を硬さの異なる素材で構成すると、鳴き防止シムの特性をより一層広範囲に調整することが可能となる。例えば、前記板厚調整層のうち、厚肉な板厚調整層を薄肉な板厚調整層よりも軟質素材で構成したり、厚肉な板厚調整層を薄肉な板厚調整層よりも硬質素材で構成することになる。   Here, in the second squeal prevention shim, if the plate thickness adjusting layers having different thicknesses are made of materials having different hardnesses, the characteristics of the squeal prevention shim can be adjusted in a wider range. For example, among the plate thickness adjustment layers, the thick plate thickness adjustment layer is made of a softer material than the thin plate thickness adjustment layer, or the thick plate thickness adjustment layer is harder than the thin plate thickness adjustment layer. It will be composed of materials.

以下、本発明の実施の形態について図面を参照しながら説明する。   Hereinafter, embodiments of the present invention will be described with reference to the drawings.

（第１実施例）
図１、図５、図６に示すように、ディスクブレーキ装置１は、ブレーキディスク２の外周部の両側に配置されるキャリパ爪４及びキャリパ本体５を有し、ブレーキディスク２を跨いで設けられるキャリパ３と、キャリパ３のキャリパ本体５にキャリパ爪４側へ出没自在に組み込んだピストン６と、ブレーキディスク２とキャリパ爪４及びピストン６間に対面させて配置した１対のブレーキパッド７と、ブレーキパッド７の裏面側（外面側）にそれぞれ取付けた鳴き防止シム８とを備えている。 (First embodiment)
As shown in FIGS. 1, 5, and 6, the disc brake device 1 has caliper claws 4 and caliper bodies 5 disposed on both sides of the outer peripheral portion of the brake disc 2, and is provided across the brake disc 2. A caliper 3, a piston 6 incorporated in the caliper body 5 of the caliper 3 so as to be able to protrude and retract toward the caliper claw 4, a pair of brake pads 7 disposed so as to face each other between the brake disk 2, the caliper claw 4, and the piston 6; A squeal prevention shim 8 is provided on the back side (outer side) of the brake pad 7.

ブレーキパッド７は、図１〜図４に示すように、裏金１０と、ブレーキディスク２との対向面側（内面側）において裏金１０に固定した摩擦材１１とを備えた周知の構成のもので、裏金１０の左側部（ブレーキディスク２の半径方向の外周側に対面する部分）と右側部（ブレーキディスク２の半径方向の内周側に対面する部分）とには鳴き防止シム８の爪部３４、３５を位置決めするための係合溝１２が形成されている。   As shown in FIGS. 1 to 4, the brake pad 7 has a known configuration including a back metal 10 and a friction material 11 fixed to the back metal 10 on the side facing the brake disk 2 (inner surface side). The claw portion of the squeal prevention shim 8 is formed on the left side (the portion facing the radially outer peripheral side of the brake disc 2) and the right side (the portion facing the radially inner peripheral side of the brake disc 2) of the back metal 10. An engagement groove 12 for positioning 34 and 35 is formed.

左右の鳴き防止シム８は、図１〜図６に示すように、ブレーキパッド７の裏金１０に密接配置した第１構成板２０と、キャリパ爪４に対面する圧接領域（図５に２種類のハッチングで示す圧接領域Ａ、Ｂ）とピストン６に対面する圧接領域（図６に２種類のハッチングで示す圧接領域Ｃ、Ｄ）の一部を含むように開口部３３を形成し、第１構成板２０に積層状に設けた第２構成板３０と、第２構成板３０の開口部３３内において第１構成板２０に積層状に設けた第３構成板４０とを備えている。   As shown in FIGS. 1 to 6, the left and right squeal prevention shims 8 include a first component plate 20 disposed in close contact with the back metal 10 of the brake pad 7, and a pressure contact region facing the caliper claw 4 (two types shown in FIG. 5). The opening 33 is formed so as to include a part of the pressure contact areas A, B) indicated by hatching and the pressure contact areas C, D indicated by two types of hatching in FIG. A second component plate 30 provided in a laminate on the plate 20 and a third component plate 40 provided in a laminate on the first component plate 20 in the opening 33 of the second component plate 30 are provided.

第１構成板２０は、厚さ０．１〜０．８ｍｍのステンレス鋼板などの金属板からなる基板２１と、基板２１の外面側に形成したゴムコーティング層２２と、基板２１の内面側に形成した接着剤層２３とから３層構造に構成されている。第１構成板２０には裏金１０よりもやや小さいサイズの略平板状の本体部２４が設けられ、第１構成板２０の左右両側部には上下１対、計４つの位置決め片２５が本体部２４から左右両側へ突出状に形成されている。但し、基板２１としては、金属板以外に合成樹脂材料からなる樹脂板や、金属材料と合成樹脂材料の複合板などを採用することも可能である。   The first component plate 20 is formed on a substrate 21 made of a metal plate such as a stainless steel plate having a thickness of 0.1 to 0.8 mm, a rubber coating layer 22 formed on the outer surface side of the substrate 21, and an inner surface side of the substrate 21. A three-layer structure is formed from the adhesive layer 23. The first component plate 20 is provided with a substantially flat plate-like main body 24 having a size slightly smaller than the back metal 10, and a total of four positioning pieces 25 are provided on the left and right side portions of the first component plate 20 in total. 24 is formed to project from the left and right sides. However, as the substrate 21, a resin plate made of a synthetic resin material in addition to the metal plate, a composite plate of a metal material and a synthetic resin material, or the like can be adopted.

第２構成板３０は、厚さ０．１〜０．８ｍｍのステンレス鋼板などの金属板からなる基板３１で構成されている。第２構成板３０には枠状の本体部３２が形成され、本体部３２の中央部には上下方向に延びる開口部３３が形成され、第２構成板３０の本体部３２の左右両側部には上下１対の爪部３４、３５がそれぞれ突出状に形成され、第２構成板３０は、その本体部３２を第１構成板２０の接着剤層２３に接着させて、第１構成板２０に積層状に固定されている。   The second component plate 30 is composed of a substrate 31 made of a metal plate such as a stainless steel plate having a thickness of 0.1 to 0.8 mm. A frame-shaped main body portion 32 is formed on the second component plate 30, and an opening 33 extending in the vertical direction is formed at the center portion of the main body portion 32, and on both left and right sides of the main body portion 32 of the second component plate 30. A pair of upper and lower claw portions 34 and 35 are formed in a protruding shape, and the second component plate 30 has its main body portion 32 adhered to the adhesive layer 23 of the first component plate 20, and the first component plate 20. Are fixed in a laminated form.

第３構成板４０は、第２構成板３０の基板３１よりも薄肉なステンレス鋼板などの金属板からなる基板４１と、基板４１の外面側に形成した圧縮変形可能な素材、例えば合成ゴムや合成樹脂や繊維材などからなる板厚調整層４２とから２層構造に構成されている。そして、板厚調整層４２が圧縮されていない状態、つまりブレーキ装置１が作動していない状態では、第３構成板４０の板厚は第２構成板３０の板厚よりも厚肉になり、ブレーキ装置１の作動時の押圧力で板厚調整層４２が圧縮されると、自然状態における第２構成板３０の板厚以下に圧縮変形し得るように構成されている。第３構成板４０は第２構成板３０の開口部３３に適合した形状に構成され、第３構成板４０は、第２構成板３０の開口部３３に略隙間なく配置され、第１構成板２０の接着剤層２３に積層状に固定されている。但し、板厚調整層４２としては、圧縮変形可能な素材であれば、ゴム以外の合成樹脂材料などの任意の素材で構成できる。また、基板４１としては、金属板以外に合成樹脂材料からなる樹脂板や、金属材料と合成樹脂材料の複合板などを採用することも可能である。更に、基板４１として圧縮変形可能な合成樹脂や合成ゴムなどからなるものを用いることも可能であり、この場合には板厚調整層４２を省略できる。また、板厚調整層４２は、コーティングにより形成してもよいし、フィルム状やシート状のものを貼り付けてもよい。   The third component plate 40 includes a substrate 41 made of a metal plate such as a stainless steel plate that is thinner than the substrate 31 of the second component plate 30, and a compressible and deformable material formed on the outer surface side of the substrate 41, for example, synthetic rubber or synthetic The plate thickness adjusting layer 42 made of a resin or a fiber material is used to form a two-layer structure. And in the state where the plate thickness adjusting layer 42 is not compressed, that is, the state where the brake device 1 is not operated, the plate thickness of the third component plate 40 becomes thicker than the plate thickness of the second component plate 30, When the plate thickness adjusting layer 42 is compressed by the pressing force during operation of the brake device 1, it is configured to be able to compressively deform below the plate thickness of the second component plate 30 in the natural state. The third component plate 40 is configured in a shape that fits the opening 33 of the second component plate 30, and the third component plate 40 is disposed in the opening 33 of the second component plate 30 without a substantial gap. The 20 adhesive layers 23 are fixed in a laminated manner. However, the plate thickness adjusting layer 42 can be made of any material such as a synthetic resin material other than rubber as long as it is a material that can be compressed and deformed. In addition to the metal plate, the substrate 41 can be a resin plate made of a synthetic resin material, a composite plate of a metal material and a synthetic resin material, or the like. Further, it is possible to use a material made of a synthetic resin or a synthetic rubber that can be compressed and deformed as the substrate 41. In this case, the plate thickness adjusting layer 42 can be omitted. The plate thickness adjusting layer 42 may be formed by coating, or a film or sheet may be attached.

第２構成板３０の爪部３４は、本体部３２から左方へ延びる脚部３４ａと、脚部３４ａの先端部から裏金１０側へ延びる掛止部３４ｂとを備え、脚部３４ａと掛止部３４ｂ間の折曲部３４ｃは、爪部３４のバネ力を高めるために湾曲状に形成されている。爪部３５は、本体部３２から右方へ延びる脚部３５ａと、脚部３５ａの先端部から裏金１０側へ延びる掛止部３５ｂとを備え、脚部３５ａと掛止部３５ｂ間の折曲部３５ｃは９０度よりもやや小さな鋭角状に形成されている。   The claw part 34 of the second component plate 30 includes a leg part 34a extending leftward from the main body part 32, and a latching part 34b extending from the tip part of the leg part 34a to the back metal 10 side, and latches with the leg part 34a. The bent portion 34 c between the portions 34 b is formed in a curved shape in order to increase the spring force of the claw portion 34. The claw portion 35 includes a leg portion 35a extending rightward from the main body portion 32, and a latching portion 35b extending from the distal end portion of the leg portion 35a to the back metal 10 side, and is bent between the leg portion 35a and the latching portion 35b. The portion 35c is formed in an acute angle slightly smaller than 90 degrees.

また、脚部３４ａ、３５ａの基部には第１構成板２０側へ１段だけ段落ちする段差部からなる応力遮断部３４ｄ、３５ｄが横断状に形成され、この応力遮断部３４ｄ、３５ｄにより、第２構成板３０をブレーキパッド７に取付けたときに爪部３４、３５に作用する曲げ応力が、爪部３４、３５から第２構成板３０の本体部３２へ作用することが遮断され、曲げ応力による本体部３２の歪みが防止されて、本体部３２の平面度の低下に伴う鳴き発生が抑制されることになる。図４に示すように、応力遮断部３４ｄ、３５ｄの段差は、第１構成板２０の板厚の範囲内に設定され、脚部３４ａ、３５ａが第１構成板２０よりも内側に突出しないように構成されている。   Further, at the base of the legs 34a and 35a, stress blocking portions 34d and 35d each having a stepped portion that is stepped down by one step toward the first component plate 20 are formed in a transverse shape, and by these stress blocking portions 34d and 35d, Bending stress acting on the claw portions 34 and 35 when the second component plate 30 is attached to the brake pad 7 is blocked from acting on the body portion 32 of the second component plate 30 from the claw portions 34 and 35, and bending. The distortion of the main body 32 due to the stress is prevented, and the occurrence of squeal accompanying the decrease in the flatness of the main body 32 is suppressed. As shown in FIG. 4, the steps of the stress blocking portions 34 d and 35 d are set within the thickness range of the first component plate 20 so that the leg portions 34 a and 35 a do not protrude inward from the first component plate 20. It is configured.

尚、爪部３４、３５は、第２構成板３０を裏金１０に対して着脱自在に固定し得るものであれば、任意の構成のものを採用できる。また、その個数や配置は任意に設定可能である。また、爪部３４、３５の幅はその全長にわたって一様に設定してもよいが、基部側において多少幅広に設定してもよい。更に、爪部３４、３５の長さを十分に確保できない場合には、図３に示すように、第２構成板３０の本体部３２における爪部３４、３５の基部の片側或いは両側に切欠部３６を形成してもよい。   As long as the claw portions 34 and 35 are capable of detachably fixing the second component plate 30 to the back metal 10, those of any configuration can be adopted. Further, the number and arrangement thereof can be arbitrarily set. Moreover, although the width | variety of the nail | claw parts 34 and 35 may be set uniformly over the full length, you may set a little wider in the base part side. Furthermore, when the length of the claw portions 34 and 35 cannot be sufficiently secured, as shown in FIG. 3, the notch portions are formed on one side or both sides of the base portion of the claw portions 34 and 35 in the main body portion 32 of the second component plate 30. 36 may be formed.

図２に示すように、第１構成板２０と第２構成板３０を重ね合わせた状態で、上下の爪部３４、３５の両側に位置決め片２５が配置されるように構成され、両構成板２０、３０は、爪部３４、３５の脚部３４ａ、３５ａが位置決め片２５の側縁に当接することで上下方向に位置決めされている。   As shown in FIG. 2, the first component plate 20 and the second component plate 30 are overlapped, and the positioning pieces 25 are arranged on both sides of the upper and lower claw portions 34, 35. 20 and 30 are positioned in the vertical direction by the leg portions 34 a and 35 a of the claw portions 34 and 35 being in contact with the side edges of the positioning piece 25.

この鳴き防止シム８を組み立てる際には、爪部３４、３５を位置決め片２５の側縁に当接させて、第１構成板２０に対して第２構成板３０を面内方向に位置決めした状態で、第２構成板３０を第１構成板２０の接着剤層２３に接着して、第２構成板３０を第１構成板２０に面内方向に位置決めした状態に組み付ける。次に、第３構成板４０を第２構成板３０の開口部３３内に位置させて、第３構成板４０を第１構成板２０の接着剤層２３に接着して、第２構成板３０の開口部３３内において第１構成板２０に第３構成板４０を組み付けることになる。そして、このように積層状に一体化させた鳴き防止シム８をブレーキパッド７の裏金１０に爪部３４、３５で固定することになる。   When assembling the squeal prevention shim 8, the claw portions 34 and 35 are brought into contact with the side edges of the positioning piece 25, and the second component plate 30 is positioned in the in-plane direction with respect to the first component plate 20. Then, the second component plate 30 is bonded to the adhesive layer 23 of the first component plate 20, and the second component plate 30 is assembled to the first component plate 20 so as to be positioned in the in-plane direction. Next, the third component plate 40 is positioned in the opening 33 of the second component plate 30, and the third component plate 40 is bonded to the adhesive layer 23 of the first component plate 20, so that the second component plate 30. The third component plate 40 is assembled to the first component plate 20 in the opening 33. Then, the squeal prevention shim 8 integrated in a laminated manner in this way is fixed to the back metal 10 of the brake pad 7 by the claw portions 34 and 35.

この鳴き防止シム８においては、図示外のブレーキペダルを踏み込んでブレーキ装置１を作動させると、ピストン６が突出して、キャリパ爪４及びピストン６にそれぞれ対面するブレーキパッド７間にブレーキディスク２が挟持され、ブレーキディスク２に制動力が作用することになる。このとき、キャリパ爪４側の鳴き防止シム８に関しては、図５に示すように、第２構成板３０に対面する圧接領域Ａと、第３構成板４０に対面する圧接領域Ｂとにキャリパ爪４が圧接され、またピストン６側の鳴き防止シム８に関しては、図６に示すように、第２構成板３０に対面する圧接領域Ｃと、第３構成板４０に対面する圧接領域Ｄとにピストン６が圧接されることになる。より具体的には、ブレーキペダルを軽く踏み込んで、ブレーキディスク２に対するブレーキパッド７の押圧力が比較的小さい時には、キャリパ爪４及びピストン６が第２構成板３０よりも厚肉な第３構成板４０の圧接領域Ｂ、Ｄに圧接され、第１構成板２０と第３構成板４０とでブレーキ装置１の鳴きが防止される。また、ブレーキディスク２に対するブレーキパッド７の押圧力が大きくなって、板厚調整層４２の圧縮変形により、第３構成板４０が第２構成板３０と同じ板厚まで圧縮されると、キャリパ爪４及びピストン６が圧接領域Ａ、Ｂと圧接領域Ｃ、Ｄにそれぞれ圧接されて、第１構成板２０と第２構成板３０及び第３構成板４０とでブレーキ装置１の鳴きが防止されることになる。つまり、この鳴き防止シム８においては、ブレーキディスク２に対するブレーキパッド７の押圧力に応じて、２段階に鳴き防止シム８の特性が切り換わり、鳴きの発生が効果的に防止されることになる。しかも、第３構成板４０が第２構成板３０と同じ板厚まで圧縮された状態では、第２構成板３０がストッパーとして機能し、第３構成板４０の板厚調整層４２はそれ以上に圧縮変形しなくなるので、過剰に圧縮されることによる板厚調整層４２の破損や剥離を効果的に防止できることになる。   In this squeal prevention shim 8, when the brake device 1 is operated by depressing a brake pedal (not shown), the piston 6 protrudes and the brake disk 2 is sandwiched between the caliper pawl 4 and the brake pad 7 facing the piston 6 respectively. Thus, a braking force acts on the brake disk 2. At this time, with respect to the squeal prevention shim 8 on the caliper claw 4 side, as shown in FIG. 5, the caliper claw is divided into a pressure contact region A facing the second component plate 30 and a pressure contact region B facing the third component plate 40. 4, and the squeal preventing shim 8 on the piston 6 side is divided into a pressure contact region C facing the second component plate 30 and a pressure contact region D facing the third component plate 40 as shown in FIG. The piston 6 is pressed. More specifically, when the brake pedal is lightly depressed and the pressing force of the brake pad 7 against the brake disk 2 is relatively small, the caliper pawl 4 and the piston 6 are thicker than the second component plate 30. The first component plate 20 and the third component plate 40 prevent the brake device 1 from squeaking. Further, when the pressing force of the brake pad 7 against the brake disk 2 is increased and the third component plate 40 is compressed to the same plate thickness as the second component plate 30 due to the compression deformation of the plate thickness adjusting layer 42, the caliper claw 4 and the piston 6 are pressed against the pressure contact areas A and B and the pressure contact areas C and D, respectively, and the squealing of the brake device 1 is prevented by the first component plate 20, the second component plate 30 and the third component plate 40. It will be. That is, in this squeal prevention shim 8, the characteristics of the squeal prevention shim 8 are switched in two stages according to the pressing force of the brake pad 7 against the brake disc 2, and the occurrence of squeal is effectively prevented. . Moreover, in a state where the third component plate 40 is compressed to the same thickness as the second component plate 30, the second component plate 30 functions as a stopper, and the thickness adjustment layer 42 of the third component plate 40 is more than that. Since the compression deformation does not occur, the plate thickness adjusting layer 42 can be effectively prevented from being damaged or peeled off due to excessive compression.

次に、前記第１実施例の構成を部分的に変更した変形例について説明する。   Next, a modification in which the configuration of the first embodiment is partially changed will be described.

（１）第１構成板２０の積層構造は任意に設定可能であり、基板２１のみからなる単層構造や、ゴムコーティング層２２を省略した２層構造や、接着剤層２３に代えて両面にゴムコーティング層を形成した３層構造や、接着剤層２３の表面に紙板を貼り付けた４層構造や、ゴムコーティング層２２に代えて接着剤層を設け、その表面に紙板を貼り付けた４層や、ゴムコーティング層２２の表面に接着剤層２３を形成し、この接着剤層２３の表面に紙板を貼り付けた５層構造など、基板２１と接着剤層とゴムコーティング層と紙板とを任意に組み合わせた積層構造に構成できる。 (1) The laminated structure of the first component plate 20 can be arbitrarily set, and a single-layer structure consisting only of the substrate 21, a two-layer structure in which the rubber coating layer 22 is omitted, or both sides instead of the adhesive layer 23 A three-layer structure in which a rubber coating layer is formed, a four-layer structure in which a paper board is pasted on the surface of the adhesive layer 23, or an adhesive layer is provided in place of the rubber coating layer 22, and a paper board is pasted on the surface 4 The substrate 21, the adhesive layer, the rubber coating layer, and the paper board, such as a five-layer structure in which an adhesive layer 23 is formed on the surface of the rubber coating layer 22 and a paper board is attached to the surface of the adhesive layer 23. Arbitrary combinations of layers can be configured.

（２）第２構成板３０及び第３構成板４０の積層構造は、自然状態における第３構成板４０の板厚が第２構成板３０の板厚よりも厚肉に設定されるとともに、ブレーキ装置１の作動時の押圧力で第３構成板４０の板厚が自然状態における第２構成板３０の板厚以下に圧縮変形可能なものであれば、第１構成板２０と同様に任意の積層構造をそれぞれ採用できる。但し、第２構成板３０を第１構成板２０に接着しない場合には、第１構成板２０の爪部３４、３５と同様の爪部を第２構成板３０にも形成して、この爪部を用いて第２構成板２０をブレーキパッド７の裏金１０に対して着脱自在に取り付けることになる。また、第３構成板４０に関しては、爪部を外周に形成できないので、少なくとも第１構成板２０に対して接着できるように、第１構成板２０と第３構成板４０との合わせ面の少なくとも一方に接着剤層を形成した積層構造を採用することになる。 (2) In the laminated structure of the second component plate 30 and the third component plate 40, the thickness of the third component plate 40 in the natural state is set to be thicker than the plate thickness of the second component plate 30, and the brake As long as the thickness of the third component plate 40 can be compressed and deformed below the thickness of the second component plate 30 in the natural state by the pressing force during operation of the device 1, the same as the first component plate 20. Each layered structure can be adopted. However, when the second component plate 30 is not bonded to the first component plate 20, a claw portion similar to the claw portions 34 and 35 of the first component plate 20 is also formed on the second component plate 30. The second component plate 20 is detachably attached to the back metal 10 of the brake pad 7 using the part. Further, since the claw portion cannot be formed on the outer periphery with respect to the third component plate 40, at least the mating surfaces of the first component plate 20 and the third component plate 40 can be bonded to at least the first component plate 20. A laminated structure in which an adhesive layer is formed on one side is adopted.

具体的には、板厚調整層４２が内面側に位置するように、第３構成板４０を第１構成板２０に積層状に設けてもよい。また、第３構成板４０の内面側に圧縮変形可能な接着材層を形成し、この接着剤層を第１構成板２０の接着剤層２３に重ね合わせて第３構成板を第１構成板に接着してもよい。この場合には、ブレーキ装置の作動時における押圧力で、接着剤層が圧縮変形することにより、第３構成板４０が第２構成板３０と同じ板厚まで圧縮されるように設定することで、板厚調整層４２を省略できる。更に、第３構成板４０の板厚調整層４２に代えて圧縮変形可能な接着剤層を形成し、この接着剤層の外面側に紙板を貼り付け、ブレーキ作動時には接着剤層の圧縮変形により第３構成板が第２構成板よりも薄肉になるように構成することも可能である。   Specifically, the third component plate 40 may be provided on the first component plate 20 in a stacked manner so that the plate thickness adjusting layer 42 is located on the inner surface side. Further, an adhesive layer that can be compressed and deformed is formed on the inner surface side of the third component plate 40, and the third component plate is superposed on the adhesive layer 23 of the first component plate 20 to form the third component plate. You may adhere to. In this case, by setting the third component plate 40 to be compressed to the same plate thickness as the second component plate 30 by compressing and deforming the adhesive layer by the pressing force during operation of the brake device. The plate thickness adjusting layer 42 can be omitted. Further, instead of the plate thickness adjusting layer 42 of the third component plate 40, an adhesive layer that can be compressed and deformed is formed, and a paper board is attached to the outer surface side of the adhesive layer. It is also possible to configure the third component plate to be thinner than the second component plate.

（３）第２構成板３０及び第３構成板４０をブレーキパッド７の裏金１０側に配置し、第１構成板２０を外面側に配置することも可能である。 (3) It is also possible to arrange the second component plate 30 and the third component plate 40 on the back metal 10 side of the brake pad 7 and to arrange the first component plate 20 on the outer surface side.

（４）本実施例では、第２構成板３０を第３構成板４０よりも薄肉に設定したが、第３構成板４０を第２構成板３０よりも薄肉に設定することも可能である。この場合には、第２構成板が圧縮変形した後、第２構成板及び第３構成板が圧縮変形して、ブレーキ装置の作動状態に応じて鳴き防止シム８の特性が切り換わることになる。 (4) In the present embodiment, the second component plate 30 is set to be thinner than the third component plate 40, but the third component plate 40 can also be set to be thinner than the second component plate 30. In this case, after the second component plate is compressed and deformed, the second component plate and the third component plate are compressed and deformed, and the characteristics of the squeal prevention shim 8 are switched according to the operating state of the brake device. .

（５）本実施例では、第２構成板３０に１つだけ開口部３３を形成し、その内側に１枚ものの第３構成板４０を略隙間なく配置させたが、図５、図６にハッチングで示す圧接領域は概ね上下に分かれるので、第２構成板３０の本体部２４の上部と下部に開口部を設け、第３構成板を両開口部内に略隙間なく嵌合させて第１構成板２０に積層状に設けてもよい。また、この場合には、上部と下部とで第３構成板の積層構造や厚さが異なるように設定することもできる。更に、第３構成板４０を上下に分割構成して、その積層構造や厚さが異なるように構成することも可能である。 (5) In the present embodiment, only one opening 33 is formed in the second component plate 30, and one third component plate 40 is disposed inside the second component plate 30 with substantially no gap. Since the pressure contact area indicated by hatching is roughly divided into upper and lower parts, openings are provided in the upper and lower portions of the main body 24 of the second component plate 30, and the third component plate is fitted into both openings without substantial gaps. The plate 20 may be provided in a laminated form. In this case, the upper structure and the lower structure can be set so that the laminated structure and thickness of the third component plate are different. Furthermore, it is also possible to divide and configure the third component plate 40 so that the laminated structure and thickness are different.

（６）第２構成板３０におけるキャリパ爪４に対面する圧接領域Ａ、Ｂとピストン６に対面する圧接領域Ｃ、Ｄとは異なる形状や配置になるので、キャリパ爪４側の第２構成板３０の開口部３３と、ピストン６側の第２構成板３０の開口部３３とで、開口部３３の形成位置や形状やサイズ等に差を持たせ、キャリパ爪４やピストン６に適合した形状に構成することもできる。更にまた、上下の圧接領域は略同じ面積になるように設定してもよいが、下側（前進時におけるブレーキディスクの回転方向の前方側）の圧接領域の面積を多少小さめに設定すると、一層効果的に鳴きを防止できるので好ましい。また、本実施例では、第２構成板３０及び第３構成板４０をキャリパ爪４やピストン６に対面する外側に配置したが、裏金１０に対面する内側に配置すると、ピストン６やキャリパ爪４からの押圧力を第２構成板３０及び第３構成板４０の全体に作用させることができる。 (6) Since the pressure contact areas A and B facing the caliper claw 4 in the second component plate 30 and the pressure contact areas C and D facing the piston 6 have different shapes and arrangements, the second component plate on the caliper claw 4 side The opening 33 of the 30 and the opening 33 of the second component plate 30 on the piston 6 side have a difference in the formation position, shape, size, etc. of the opening 33, and the shape suitable for the caliper claw 4 and the piston 6 It can also be configured. Furthermore, the upper and lower pressure contact areas may be set to have substantially the same area, but if the area of the pressure contact area on the lower side (the front side in the rotation direction of the brake disk during forward movement) is set slightly smaller, This is preferable because it can effectively prevent squealing. In the present embodiment, the second component plate 30 and the third component plate 40 are arranged on the outer side facing the caliper claw 4 and the piston 6, but when arranged on the inner side facing the back metal 10, the piston 6 and the caliper claw 4 are arranged. Can be applied to the second component plate 30 and the third component plate 40 as a whole.

次に、前記鳴き防止シムの第２実施例について説明する。尚、前記第１実施例と同一部材には同一符号を付してその詳細な説明を省略する。   Next, a second embodiment of the squeal prevention shim will be described. The same members as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

この鳴き防止シム８Ａは、図７、図８に示すように、前記第１実施例の第３構成板４０を省略し、第２構成板３０に代えて、開口部３３を省略した基板３１Ａと、基板３１Ａの外面部に形成した圧縮変形可能な素材、例えば例えば合成ゴムや合成樹脂や繊維材などからなる板厚調整層５２、５３とを有する第２構成板３０Ａを設けたもので、第２構成板３０は、その本体部３２Ａが第１構成板２０の接着剤層２３に接着されることで、第１構成板２０に一体的に結合されている。但し、第１構成板２０は省略することも可能である。板厚調整層５２、５３は、コーティングにより形成してもよいし、フィルム状やシート状のものを貼り付けてもよい。   As shown in FIGS. 7 and 8, the squeal prevention shim 8 </ b> A includes a substrate 31 </ b> A in which the third component plate 40 of the first embodiment is omitted and the opening 33 is omitted instead of the second component plate 30. , Provided with a second component plate 30A having plate thickness adjusting layers 52, 53 made of a compressible and deformable material formed on the outer surface portion of the substrate 31A, for example, synthetic rubber, synthetic resin, fiber material, etc. The two component plates 30 are integrally coupled to the first component plate 20 by bonding the main body portion 32 </ b> A to the adhesive layer 23 of the first component plate 20. However, the first component plate 20 can be omitted. The plate thickness adjusting layers 52 and 53 may be formed by coating, or may be a film or sheet.

第２構成板３０のうちの少なくともキャリパ爪４又はピストン６との圧接部分は複数の圧接領域に区画され、圧接領域毎に厚さの異なる少なくとも２種類の板厚調整層５２、５３が形成されている。具体的には、前記第１実施例における第３構成板４０に対応する位置に厚肉な板厚調整層５２を形成し、第２構成板３０に対応する位置に薄肉な板厚調整層５３を形成し、前記第１実施例と同様に、キャリパ爪４側の鳴き防止シム８Ａに関しては圧接領域Ａ，Ｂがキャリパ爪４に圧接され、ピストン６側の鳴き防止シム８Ａに関しては圧接領域Ｃ、Ｄがピストン６に圧接されるように構成されている。   At least a pressure contact portion of the second component plate 30 with the caliper claw 4 or the piston 6 is partitioned into a plurality of pressure contact regions, and at least two types of plate thickness adjusting layers 52 and 53 having different thicknesses are formed for each pressure contact region. ing. Specifically, a thick plate thickness adjusting layer 52 is formed at a position corresponding to the third component plate 40 in the first embodiment, and a thin plate thickness adjusting layer 53 is formed at a position corresponding to the second component plate 30. As in the first embodiment, the pressure contact areas A and B are pressed against the caliper claw 4 with respect to the squeal prevention shim 8A on the caliper claw 4 side, and the pressure contact area C with respect to the squeal prevention shim 8A on the piston 6 side. , D is configured to be in pressure contact with the piston 6.

厚肉な板厚調整層５２と薄肉な板厚調整層５３とは、同一素材で構成することも可能であるが、異種素材で構成することも可能である。また、異種素材で構成する場合には、厚肉な板厚調整層５２を薄肉な板厚調整層５３よりも軟質な素材で構成したり、厚肉な板厚調整層５２を薄肉な板厚調整層５３よりも硬質な素材で構成したりすることで、鳴き防止シム８Ａの特性をより一層広範囲に調整することが可能となる。このような板厚調整層５２、５３は、凹版印刷やスクリーン印刷などにより形成できる。   The thick plate thickness adjusting layer 52 and the thin plate thickness adjusting layer 53 can be made of the same material, but can also be made of different materials. In the case where the thick plate thickness adjusting layer 52 is made of a softer material than the thin plate thickness adjusting layer 53, or the thick plate thickness adjusting layer 52 is made of a thin plate thickness. By using a material harder than the adjustment layer 53, the characteristics of the squeal prevention shim 8A can be adjusted in a wider range. Such plate thickness adjusting layers 52 and 53 can be formed by intaglio printing or screen printing.

この鳴き防止シム８Ａでは、ブレーキ装置１の作動時に、先ず厚肉な板厚調整層５２が圧縮されて、薄肉な板厚調整層５３と略同じ肉厚になった後、両板厚調整層５２、５３が圧縮されることになり、ブレーキ装置１の作動状態に応じて２段階に鳴き防止シム８Ａの特性が変化することになる。但し、キャリパ爪４又はピストン６との圧接部分を更に複数の圧接領域に区画して、板厚調整層５２、５３の厚さを段階的に変化させたり、板厚調整層５２、５３を緩やかな湾曲面に形成して、厚さを連続的に変化させたりすると、よりきめ細かく鳴き防止シム８Ａの特性を調整することが可能となる。また、この第２実施例では、キャリパ爪４やピストン６が対面する外側に板厚調整層５２、５３が配置されるように構成したが、裏金１０に対面する内側に板厚調整層５２、５３が配置されるように構成してもよい。更に、構成板の積層構造に関しては、板厚調整層５２、５３が積層されていれば、前記第１実施例における第１構成板２０と同様に、基板３１Ａに対して板厚調整層と接着剤層と紙板とを任意に組み合わせた積層構造に構成できる。   In the squeal prevention shim 8A, when the brake device 1 is operated, the thick plate thickness adjusting layer 52 is first compressed to become substantially the same thickness as the thin plate thickness adjusting layer 53, and then both the plate thickness adjusting layers. 52 and 53 are compressed, and the characteristic of the squeal prevention shim 8A changes in two stages according to the operating state of the brake device 1. However, the pressure contact portion with the caliper claw 4 or the piston 6 is further divided into a plurality of pressure contact regions, and the thicknesses of the plate thickness adjusting layers 52 and 53 are changed stepwise, or the plate thickness adjusting layers 52 and 53 are loosened gradually. If it is formed on a curved surface and the thickness is continuously changed, the characteristics of the squeal prevention shim 8A can be adjusted more finely. In the second embodiment, the plate thickness adjusting layers 52 and 53 are arranged on the outside facing the caliper pawl 4 and the piston 6, but the plate thickness adjusting layer 52 on the inside facing the back metal 10, 53 may be arranged. Further, regarding the laminated structure of the component plates, if the plate thickness adjusting layers 52 and 53 are stacked, the plate thickness adjusting layer and the substrate 31A are bonded to each other as in the first component plate 20 in the first embodiment. It can be configured as a laminated structure in which the agent layer and the paper board are arbitrarily combined.

第１実施例の鳴き防止シムを備えたディスクブレーキ装置の横断面図1 is a cross-sectional view of a disc brake device having a squeal prevention shim according to a first embodiment. 第１実施例の鳴き防止シムを組付けたブレーキパッドの斜視図The perspective view of the brake pad which assembled | attached the squeal prevention shim of 1st Example. ブレーキパッド及び第１実施例の鳴き防止シムの分解斜視図Disassembled perspective view of squeal prevention shim of brake pad and first embodiment 鳴き防止シムの図２におけるIV-IV線断面図IV-IV sectional view of the squeal prevention shim in Fig. 2 キャリパ爪の圧接領域を示すディスクブレーキ装置の正面図Front view of the disc brake device showing the pressure contact area of the caliper pawl ピストンの圧接領域を示すディスクブレーキ装置の正面図Front view of disc brake device showing pressure contact area of piston ブレーキパッド及び第２実施例の鳴き防止シムの分解斜視図Disassembled perspective view of squeal prevention shim of brake pad and second embodiment 同鳴き防止シムの横断面図Cross-sectional view of the squeal prevention shim

符号の説明Explanation of symbols

１ ディスクブレーキ装置
２ ブレーキディスク ３ キャリパ
４ キャリパ爪 ５ キャリパ本体
６ ピストン ７ ブレーキパッド
８ 鳴き防止シム
１０ 裏金 １１ 摩擦材
１２ 係合溝
２０ 第１構成板 ２１ 基板
２２ ゴムコーティング層 ２３ 接着剤層
２４ 本体部 ２５ 位置決め片
３０ 第２構成板 ３１ 基板
３２ 本体部 ３３ 開口部
３４ 爪部 ３４ａ 脚部
３４ｂ 掛止部 ３４ｃ 折曲部
３４ｄ 応力遮断部 ３５ 爪部
３５ａ 脚部 ３５ｂ 掛止部
３５ｃ 折曲部 ３４ｄ 応力遮断部
３６ 切欠部
４０ 第３構成板 ４１ 基板
４２ 板厚調整層
３０Ａ 第２構成板 ３１Ａ 基板
３２Ａ 本体部
５２ 板厚調整層
５３ 板厚調整層
DESCRIPTION OF SYMBOLS 1 Disc brake device 2 Brake disc 3 Caliper 4 Caliper claw 5 Caliper main body 6 Piston 7 Brake pad 8 Squeaking prevention shim 10 Back metal 11 Friction material 12 Engaging groove 20 First component board 21 Substrate 22 Rubber coating layer 23 Adhesive layer 24 Main body Part 25 Positioning piece 30 Second component plate 31 Substrate 32 Main body part 33 Opening part 34 Claw part 34a Leg part 34b Hanging part 34c Bending part 34d Stress blocking part 35 Claw part 35a Leg part 35b Hanging part 35c Bending part 34d Stress blocking portion 36 Notch portion 40 Third component plate 41 Substrate 42 Plate thickness adjusting layer 30A Second component plate 31A Substrate 32A Body portion 52 Plate thickness adjusting layer 53 Plate thickness adjusting layer

Claims (9)

ブレーキパッドの裏金の裏面側に積層状に取付けられる複数枚の構成板からなるディスクブレーキ装置の鳴き防止シムにおいて、
前記裏金の裏面側に積層状に配置される第１構成板と、
キャリパ爪又はピストンに対面する圧接領域の一部に開口部を形成し、第１構成板に積層状に設けた第２構成板と、
前記第２構成板の開口部内において第１構成板に積層状に設けた第３構成板とを備え、
前記第２構成板又は第３構成板のうち、一方の構成板の板厚を他方の構成板よりも厚肉に構成するとともに、ブレーキ装置の作動時の押圧力で自然状態における他方の構成板の板厚以下に圧縮変形可能に構成した、
ことを特徴とするディスクブレーキ装置の鳴き防止シム。 In the squeal prevention shim of the disc brake device consisting of a plurality of component plates attached in a laminated manner on the back side of the back pad of the brake pad,
A first component plate arranged in a laminated manner on the back side of the back metal;
A second component plate formed in a laminated form on the first component plate, with an opening formed in a part of the pressure contact area facing the caliper claw or the piston;
A third component plate provided in a stacked manner on the first component plate in the opening of the second component plate,
Of the second component plate or the third component plate, one component plate is made thicker than the other component plate, and the other component plate in the natural state by the pressing force when the brake device is operated Configured to be compressible and deformable below the thickness of
A shim prevention shim for a disc brake device. 前記第１構成板をキャリパ爪又はピストンに対面するように配置し、第２構成板及び第３構成板を裏金側に配置した請求項１記載のディスクブレーキ装置の鳴き防止シム。   The squeal prevention shim of a disc brake device according to claim 1, wherein the first component plate is disposed so as to face the caliper pawl or the piston, and the second component plate and the third component plate are disposed on the back metal side. 前記一方の構成板に圧縮変形可能な素材からなる板厚調整層を積層状に設けた請求項１又は２記載のディスクブレーキ装置の鳴き防止シム。   The squeal prevention shim of the disc brake device according to claim 1 or 2, wherein a plate thickness adjusting layer made of a material that can be compressed and deformed is provided on the one component plate. 前記一方の構成板の外面部に圧縮変形可能な素材からなる板厚調整層を積層状に設け、他方の構成板を金属製の基板で構成した請求項１〜３のいずれか１項記載のディスクブレーキ装置の鳴き防止シム。   The thickness adjustment layer which consists of a raw material which can compressly deform in the outer surface part of said one component board was provided in the laminated form, and the other component board was comprised with the metal board | substrate of any one of Claims 1-3. Shim prevention shim for disc brake device. 前記第２構成板及び第３構成板を第１構成板に接着した請求項１〜４のいずれか１項記載のディスクブレーキ装置の鳴き防止シム。   The squeal prevention shim of the disc brake device according to any one of claims 1 to 4, wherein the second component plate and the third component plate are bonded to the first component plate. 前記第２構成板及び第３構成板を第１構成板に異種素材の接着剤で接着した請求項１〜５のいずれか１項記載のディスクブレーキ装置の鳴き防止シム。   The squeal prevention shim of the disc brake device according to any one of claims 1 to 5, wherein the second component plate and the third component plate are bonded to the first component plate with an adhesive of a different material. 前記第２構成板の開口部に第３構成板を略隙間無く設けた請求項１〜６のいずれか１項記載のディスクブレーキ装置の鳴き防止シム。   The squeal prevention shim for a disc brake device according to any one of claims 1 to 6, wherein the third component plate is provided in the opening of the second component plate with substantially no gap. ブレーキパッドの裏金の裏面側に取付けられる単又は複数の構成板からなるディスクブレーキ装置の鳴き防止シムにおいて、
少なくとも１枚の構成板におけるキャリパ爪又はピストンとの対面部分を複数の圧接領域に区画し、該構成板に、圧縮変形可能な素材からなる厚さの異なる板厚調整層を圧接領域毎に積層状に設けた、
ことを特徴とするディスクブレーキ装置の鳴き防止シム。 In the squeal prevention shim of the disc brake device composed of one or more constituent plates attached to the back side of the back pad of the brake pad,
The facing part of the caliper claw or piston on at least one component plate is partitioned into a plurality of pressure contact regions, and a plate thickness adjustment layer made of a material that can be compressed and deformed is laminated on each component plate for each pressure contact region. In the shape of
A shim prevention shim for a disc brake device. 前記厚さの異なる板厚調整層を硬さの異なる素材で構成した請求項８記載のブレーキディスク装置の鳴き防止シム。
The squeal prevention shim for a brake disc device according to claim 8, wherein the plate thickness adjusting layers having different thicknesses are made of materials having different hardnesses.
JP2004011723A 2004-01-20 2004-01-20 Shim prevention shim for disc brake device Expired - Fee Related JP4285250B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2004011723A JP4285250B2 (en) 2004-01-20 2004-01-20 Shim prevention shim for disc brake device
DE200510002762 DE102005002762A1 (en) 2004-01-20 2005-01-20 Squeal prevention shim of disc brake gear of vehicle, has tertiary board whose thickness reduces than secondary-board thickness, when compression set of tertiary board is carried out due to thrust during operation of brake device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004011723A JP4285250B2 (en) 2004-01-20 2004-01-20 Shim prevention shim for disc brake device

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JP2005207443A true JP2005207443A (en) 2005-08-04
JP4285250B2 JP4285250B2 (en) 2009-06-24

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201700013292A1 (en) * 2017-02-07 2018-08-07 Campagnolo Srl Pad for bicycle disc brake

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008133556A1 (en) * 2007-04-25 2008-11-06 Trelleborg Rubore Ab Anti-squeal shim
DE102011112247B4 (en) 2011-09-01 2022-12-22 Zf Active Safety Gmbh Brake pad assembly for a vehicle brake
DE102014006646A1 (en) * 2014-05-07 2015-11-12 Wolverine Advanced Materials Gmbh damping plate

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201700013292A1 (en) * 2017-02-07 2018-08-07 Campagnolo Srl Pad for bicycle disc brake
EP3357805A1 (en) * 2017-02-07 2018-08-08 Campagnolo S.r.l. Pad for a bicycle disc brake
JP2018141555A (en) * 2017-02-07 2018-09-13 カンパニョーロ・ソシエタ・ア・レスポンサビリタ・リミタータＣａｍｐａｇｎｏｌｏ Ｓｏｃｉｅｔａ Ａ Ｒｅｓｐｏｎｓａｂｉｌｉｔａ Ｌｉｍｉｔａｔａ Pad for bicycle disc brake
US10487894B2 (en) 2017-02-07 2019-11-26 Campagnolo S.R.L. Pad for a bicycle disc brake

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