JP6358426B2 - Brake structure of vehicle - Google Patents

Brake structure of vehicle Download PDF

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JP6358426B2
JP6358426B2 JP2014115897A JP2014115897A JP6358426B2 JP 6358426 B2 JP6358426 B2 JP 6358426B2 JP 2014115897 A JP2014115897 A JP 2014115897A JP 2014115897 A JP2014115897 A JP 2014115897A JP 6358426 B2 JP6358426 B2 JP 6358426B2
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pedal
dash panel
vehicle
vehicle interior
brake
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JP2015229404A (en
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昌之 竹谷
昌之 竹谷
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Mitsubishi Motors Corp
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  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
  • Braking Elements And Transmission Devices (AREA)

Description

本発明は、ダッシュパネルにブレーキブースタが取り付けられる車両のブレーキ構造に関する。   The present invention relates to a vehicle brake structure in which a brake booster is attached to a dash panel.

自動車（車両）の多くは、ブレーキ操作力の低減を図るために、エンジンの運転で得らえる吸気負圧や負圧ポンプで得られる負圧で作動するブレーキブースタが装備されている。ブレーキブースタは、外形が大きいため、多くはエンジンルームと車室内といった車室内外を仕切るダッシュパネルの側面（車室外側）に取付けられる。
こうしたブレーキブースタには、通常、ペダル踏力を入力するためのペダル踏力入力部が設けられている。ペダル踏力入力部は、ブースタ外側へ張り出る筒形部と、同筒形部を通じて、外側へ突き出るロッド部材とを有している。ロッド部材は、筒形部に内蔵されている真空弁や大気弁など各種弁を操作する部材である。そして、このロッド部材端にブレーキペダルが接続されることにより、ブレーキペダルの踏力にてブレーキブースタが作動する。 Many automobiles (vehicles) are equipped with a brake booster that operates with intake negative pressure obtained by engine operation and negative pressure obtained with a negative pressure pump in order to reduce brake operation force. Since the brake booster has a large outer shape, the brake booster is often attached to the side surface (outside of the passenger compartment) of the dash panel that partitions the interior and exterior of the vehicle such as the engine room and the passenger compartment.
Such a brake booster is usually provided with a pedal effort input portion for inputting a pedal effort. The pedal depression force input portion includes a cylindrical portion that protrudes outward from the booster and a rod member that protrudes outward through the cylindrical portion. The rod member is a member that operates various valves such as a vacuum valve and an atmospheric valve built in the cylindrical portion. And a brake booster act | operates with the treading force of a brake pedal by connecting a brake pedal to this rod member end.

このため、ブレーキブースタをダッシュパネルの車室外側の側面に取り付けるときは、特許文献１や特許文献２などで開示されているように、ダッシュパネルに設けた通孔からロッド部材や筒形部を車室内へ差し込み、ブレーキブースタの座面をダッシュパネルの車室外の側面に重ね合わせ、筒形部やロッド部材を車室内へ突き出す。さらに述べると、ブレーキブースタは、ブレーキブースタの座面から突き出ているボルト部材をダッシュパネルに貫通させ、ボルト部材の貫通端に先端部にナット部材をねじ込むことにより、筒形部やロッド部材が車室内へ突き出る姿勢で、ダッシュパネルの車室外側の側面に固定される。そして、このブレーキブースタのロッド部材（ペダル踏力入力部）の先端部にブレーキペダルが接続される。   For this reason, when attaching the brake booster to the side surface outside the passenger compartment of the dash panel, as disclosed in Patent Document 1, Patent Document 2, etc., the rod member or the cylindrical portion is removed from the through hole provided in the dash panel. Insert the brake booster into the passenger compartment and place the seating surface of the brake booster on the side of the dash panel outside the passenger compartment. More specifically, in the brake booster, the bolt member protruding from the seating surface of the brake booster is passed through the dash panel, and the nut member is screwed into the tip end of the bolt member so that the cylindrical portion and the rod member are mounted on the vehicle. It is fixed to the side of the dash panel on the outside of the passenger compartment, with a posture protruding into the room. A brake pedal is connected to the tip of the rod member (pedal pedal force input portion) of the brake booster.

特開平 ６−２１９３２７号公報JP-A-6-219327 特開２０１４− ４９０６号公報Japanese Patent Application Laid-Open No. 2014-4906

ところで、エンジンルーム内では、エンジンの運転音など騒音が生じており、このエンジンルームの騒音が、ペダル踏力入力部と同ペダル踏力入力部を貫通させるダッシュパネルの通孔との間の間隙を通じて、車室内へ侵入することがある。この騒音の侵入は、車室内の静粛性を損なわせる。
そこで、車室内の静粛性の確保のために、重なり合うブレーキブースタの座面とダッシュパネルの側面との間に、シール部材を挟み込む手段が講じられつつある。 By the way, in the engine room, noise such as engine operation noise is generated, and the noise in the engine room passes through a gap between the pedal depression force input part and the through hole of the dash panel that penetrates the pedal depression force input part. May enter the passenger compartment. This noise intrusion impairs the quietness of the passenger compartment.
Therefore, in order to ensure quietness in the passenger compartment, a means for sandwiching a seal member between the seating surface of the overlapping brake booster and the side surface of the dash panel is being taken.

ところが、同構造は、遮音は行えるものの、挟み込まれるシール部材には柔軟性に富む部材が用いられるため、ブレーキブースタのダッシュパネルに対する支持剛性が低下しやすく、ブレーキペダルのフィーリング（ブレーキ操作時）に影響を与えやすい難点がある。
そこで、本発明の目的は、ペダルフィーリングに影響を与えずに、騒音がブレーキブースタのペダル踏力入力部とダッシュパネルの通孔との間から車室内へ侵入するのを防げる車両のブレーキ構造を提供する。 However, although this structure can provide sound insulation, the support member for the dash panel of the brake booster tends to decrease because the seal member that is sandwiched is very flexible, and the brake pedal feeling (during brake operation) There is a difficulty that easily affects.
Accordingly, an object of the present invention is to provide a vehicle brake structure that can prevent noise from entering the vehicle interior from between the pedal depression force input portion of the brake booster and the through hole of the dash panel without affecting the pedal feeling. provide.

本発明の態様は、車室内外を仕切るダッシュパネルの車室外側の側面に設けられたブレーキブースタを有し、当該ブレーキブースタに形成されたペダル踏力入力部がダッシュパネルの通孔を通じ車室内へ突き出る車両のブレーキ構造であって、ダッシュパネルの車室内側の側面には、ペダル踏力入力部を覆い、通孔とペダル踏力入力部との間の間隙を遮るカバー部材を有し、ブレーキ倍力装置のペダル踏力入力部は、車室内に張り出る筒形部と、筒形部を通じて車室内に突き出るロッド部材とを有し、カバー部材は、ダッシュパネルの通孔周りの車室内側の側面に固定される第１フランジ部と、第１フランジ部から延びて筒形部からロッド部材の先端側までを覆う第１カバー部とを有するものとした（請求項１）。 An aspect of the present invention includes a brake booster provided on a side surface outside a vehicle compartment of a dash panel that partitions the interior and exterior of the vehicle interior, and a pedal depression force input portion formed in the brake booster enters the vehicle interior through a through hole of the dash panel. protruding a brake structure for a vehicle, the side surface of the vehicle compartment side of the dash panel, covers the pedal force input portion, have a cover member that blocks the gap between the through hole and the pedal force input portion, a brake booster The pedal depression force input portion of the device has a cylindrical portion that protrudes into the vehicle interior and a rod member that protrudes into the vehicle interior through the cylindrical portion, and the cover member is on the side of the interior of the vehicle interior around the through hole of the dash panel. The first flange portion is fixed, and the first cover portion extends from the first flange portion and covers from the cylindrical portion to the tip end side of the rod member (Claim 1).

また本発明の態様は、車室内外を仕切るダッシュパネルの車室外側の側面に設けられたブレーキブースタを有し、当該ブレーキブースタに形成されたペダル踏力入力部がダッシュパネルの通孔を通じ車室内へ突き出る車両のブレーキ構造であって、ダッシュパネルの車室内側の側面には、ペダル踏力入力部を覆い、通孔とペダル踏力入力部との間の間隙を遮るカバー部材を有し、ブレーキ倍力装置のペダル踏力入力部は、車室内に張り出る筒形部と、筒形部を通じて車室内に突き出るロッド部材とを有し、カバー部材は、ダッシュパネルの通孔周りの車室内側の側面に固定される第２フランジ部と、第２フランジ部から延びて筒形部を覆う第２カバー部とを有し、筒形部と第２カバー部材との間の間隙は、シール部材を有するを有するものとした（請求項２）。
好ましくは、ダッシュパネルは、ペダル踏力入力部を挟んだ車室内側の側面に、ブレーキペダルを支持する一対のペダル支持壁が配置され、カバー部材は、一対のペダル支持壁間に配置されるものとした（請求項３）。 Also, the aspect of the present invention includes a brake booster provided on a side surface outside the vehicle compartment of the dash panel that partitions the interior and exterior of the vehicle interior, and the pedal depression force input portion formed in the brake booster passes through the through hole of the dash panel. The brake structure of the vehicle protrudes to the side of the dash panel on the vehicle interior side and has a cover member that covers the pedal depression force input part and blocks the gap between the through hole and the pedal depression force input part. The pedal depression force input portion of the force device has a cylindrical portion protruding into the vehicle interior and a rod member protruding into the vehicle interior through the cylindrical portion, and the cover member is a side surface on the vehicle interior side around the through hole of the dash panel A second flange portion fixed to the second flange portion and a second cover portion extending from the second flange portion and covering the tubular portion, and a gap between the tubular portion and the second cover member has a seal member. And having And (Claim 2).
Preferably, the dash panel is provided with a pair of pedal support walls for supporting the brake pedal on a side surface on the vehicle interior side across the pedal depression force input portion, and the cover member is disposed between the pair of pedal support walls. (Claim 3).

本発明によれば、ダッシュパネルの車室内側の側面に取り付けられるカバー部材により、ペダル踏力入力部と通孔間に生じる騒音の侵入経路は遮られる。しかも、カバー部材は、ブレーキブースタの支持剛性を低下させずにすむので、ブレーキペダルのペダルフィーリングを低下させることはない。
それ故、ペダルフィーリングに影響を与えずに、騒音がブレーキブースタのペダル踏力入力部とダッシュパネルの通孔との間から車室内へ侵入するのを防ぐことができる。 According to the present invention, the cover member attached to the side surface of the dash panel on the vehicle interior side blocks the intrusion path of noise generated between the pedal effort input portion and the through hole. In addition, since the cover member does not reduce the support rigidity of the brake booster, the pedal feeling of the brake pedal is not reduced.
Therefore, it is possible to prevent noise from entering the vehicle interior from between the pedal depression force input portion of the brake booster and the through hole of the dash panel without affecting the pedal feeling.

本発明の第１の実施形態に係る態様となる車両のブレーキ構造を示す断面図。1 is a cross-sectional view showing a vehicle brake structure that is an aspect according to a first embodiment of the present invention; 同じくブレーキ構造を分解した断面図。Sectional drawing which decomposed | disassembled the brake structure similarly. 同じくブレーキ構造を分解した斜視図。The perspective view which decomposed | disassembled the brake structure similarly. 本発明の第２の実施形態に係る態様となるブレーキ構造の要部を示す断面図。Sectional drawing which shows the principal part of the brake structure used as the aspect which concerns on the 2nd Embodiment of this invention. 本発明の第３の実施形態に係る態様となるブレーキ構造の要部を示す断面図。Sectional drawing which shows the principal part of the brake structure used as the aspect which concerns on the 3rd Embodiment of this invention.

以下、本発明を図１から図３に示す第１の実施形態にもとづいて説明する。
図１は本発明を適用した車両（例えば自動車）のブレーキ構造の断面図、図２および図３は同ブレーキ構造を分解した図をそれぞれ示している。
図中１は、例えば車体の中央部に形成された車室、３は、例えば車体の前部に形成されたエンジンルーム、５は、車室内外である車室１とエンジンルーム３との間を仕切るダッシュパネルである。ちなみに、ダッシュパネル５の車室内側の側面には、ダッシュパッド７（吸音材）が添えられている。 The present invention will be described below based on the first embodiment shown in FIGS.
FIG. 1 is a sectional view of a brake structure of a vehicle (for example, an automobile) to which the present invention is applied, and FIGS. 2 and 3 are exploded views of the brake structure.
In the figure, for example, 1 is a vehicle compartment formed at the center of the vehicle body, 3 is an engine room formed at the front of the vehicle body, for example, and 5 is between the vehicle compartment 1 and the engine room 3 outside the vehicle interior. It is a dash panel that partitions Incidentally, a dash pad 7 (sound absorbing material) is attached to the side surface of the dash panel 5 on the vehicle interior side.

ダッシュパネル５の車室外側の側面には、ブレーキブースタであるところの、例えばエンジンの吸気負圧を用いたバキューム式のブレーキブースタ９が設けられている。またブレーキブースタ９と反対側のダッシュパネル５の側面（車室内側の側面）には、ブレーキペダル３１付のペダルブラケット３３が設けられている。
具体的にはブレーキブースタ９は、エンジンの吸気負圧を受けるダイヤフラム室（ダイヤフラムで区画された室：図示しない）を内蔵する円盤状のブースタ本体１１と、同ブースタ本体１１の一側部に組み付けられたマスタシリンダ部１３と、ブースタ本体１１の他側面に設けられた円形状の取付座１５（図２）、取付座１５の外周部から突き出た複数本のボルト部材１７（図２）、取付座１５の中央部から外部へ突き出るペダル踏力入力部１９（ペダル踏力を入力する部分；図２）とを有している。 On the side of the dash panel 5 on the outside of the passenger compartment, there is provided a vacuum type brake booster 9 which is a brake booster, for example, using the intake negative pressure of the engine. A pedal bracket 33 with a brake pedal 31 is provided on the side surface (side surface on the vehicle interior side) of the dash panel 5 opposite to the brake booster 9.
Specifically, the brake booster 9 is assembled to a disc-shaped booster body 11 that houses a diaphragm chamber (a chamber partitioned by a diaphragm: not shown) that receives intake negative pressure of the engine, and one side portion of the booster body 11. Master cylinder portion 13, a circular mounting seat 15 (FIG. 2) provided on the other side of the booster body 11, a plurality of bolt members 17 (FIG. 2) protruding from the outer peripheral portion of the mounting seat 15, and mounting The pedal 15 has a pedal depression force input portion 19 (a portion for inputting the pedal depression force; FIG. 2) that protrudes from the center of the seat 15 to the outside.

さらに述べればペダル踏力入力部１９は、図２および図３にも示されるようにブースタ本体１１の軸心部沿いに取付座１５の中央部から外部へ突き出るオペレーティングロッド２１（本願のロッド部材に相当）と、オペレーティングロッド２１の根本側となる取付座１５の中央部に設けた筒形部２３とを有している。筒形部２３は、オペレーティングロッド２１を覆いながら筒形に張り出ている。この筒形部２３の内部には、各種弁、例えばロッド変位にしたがい吸気通路と大気通路を切り換える真空弁や大気弁が内蔵されている。むろん、各種シール構造も内蔵されている。ちなみに。オペレーティングロッド２１は、ブースタ本体１１に内蔵されたダイヤフラム（図示しない）から外部へ突き出ている。そして、筒形部２３から突き出たオペレーティングロッド２１の先端部にクレビス２５が設けられる。   Further, as shown in FIGS. 2 and 3, the pedal depression force input portion 19 includes an operating rod 21 (corresponding to the rod member of the present application) that protrudes outward from the center portion of the mounting seat 15 along the axial center portion of the booster body 11. ) And a cylindrical portion 23 provided in the central portion of the mounting seat 15 which is the base side of the operating rod 21. The cylindrical portion 23 projects into a cylindrical shape while covering the operating rod 21. Inside the cylindrical portion 23, various valves, for example, a vacuum valve and an atmospheric valve for switching between an intake passage and an atmospheric passage according to rod displacement are incorporated. Of course, various seal structures are also built-in. By the way. The operating rod 21 protrudes from a diaphragm (not shown) built in the booster body 11 to the outside. A clevis 25 is provided at the tip of the operating rod 21 protruding from the cylindrical portion 23.

なお、筒形部２３端からクレビス２５近傍までのオペレーティングロッド部分は、蛇腹形のブーツ部材２７で覆ってある。ちなみに、ブレーキブースタ９は、エンジン負圧式でなく、負圧ポンプで得られる負圧式でも同様な構造である。
このブレーキブースタ９の取付座１５は、ダッシュパネル５の車室外側（エンジンルーム側）の側面で形成される座面６ａ（図２）と重なる。取付座１５の中央部から突き出た筒形部２３およびオペレーティングロッド２１（いずれもペダル踏力入力部）は、ダッシュパネル５に設けた通孔５ａ（図２）を貫通して車室内側へ突出する。取付座１５の外周部から突き出たボルト部材１７は、ダッシュパネル５に設けたボルト孔５ｂ（図２）から車室内側へ突き出る。ちなみに、取付座１５と反対側のダッシュパネル５の車室内側は、ダッシュパッド７が取り除かれている。そして、露出するダッシュパネル５の側面（車室内側）にて、ペダルブラケット据付用の座面６ｂを形成している。 The operating rod portion from the end of the cylindrical portion 23 to the vicinity of the clevis 25 is covered with a bellows-shaped boot member 27. Incidentally, the brake booster 9 has a similar structure not only in the engine negative pressure type but also in the negative pressure type obtained by a negative pressure pump.
The mounting seat 15 of the brake booster 9 overlaps with a seat surface 6a (FIG. 2) formed on the side surface of the dash panel 5 on the outer side of the passenger compartment (engine room side). The cylindrical portion 23 and the operating rod 21 (both pedal pedal force input portions) protruding from the central portion of the mounting seat 15 pass through a through hole 5a (FIG. 2) provided in the dash panel 5 and protrude toward the vehicle interior side. . The bolt member 17 protruding from the outer periphery of the mounting seat 15 protrudes from the bolt hole 5b (FIG. 2) provided in the dash panel 5 to the vehicle interior side. Incidentally, the dash pad 7 is removed from the vehicle interior side of the dash panel 5 opposite to the mounting seat 15. And the seat surface 6b for pedal bracket installation is formed in the side surface (vehicle interior side) of the dash panel 5 exposed.

ペダルブラケット３３は、例えば、図２および図３にも示されるように上下方向に延びる壁部で形成されるブラケット取付用の座面部３５と、座面部３５の一側面から突き出る一対のペダル支持壁３７とを有している。座面部３５は、ペダルブラケット据付用の座面６ｂに応じた外形をなし、中央部にはブレーキブースタ９の筒形部２３が挿通可能な通孔３６ａが設けられ、外周部にはボルト孔５ｂと対応した位置にボルト孔３６ｂが設けられる。ちなみに座面部３５の外周縁部は、Ｌ形に段差していて、座面６ｂ周囲のダッシュパッド７端の挟み込みが可能な端縁としている。   The pedal bracket 33 includes, for example, a bracket mounting seat surface portion 35 formed by a wall portion extending in the vertical direction as shown in FIGS. 2 and 3, and a pair of pedal support walls protruding from one side surface of the seat surface portion 35. 37. The seat surface portion 35 has an outer shape corresponding to the seat surface 6b for installing the pedal bracket, a through hole 36a into which the cylindrical portion 23 of the brake booster 9 can be inserted is provided at the center portion, and a bolt hole 5b is provided at the outer peripheral portion. Bolt holes 36b are provided at positions corresponding to. Incidentally, the outer peripheral edge portion of the seat surface portion 35 is stepped in an L shape, and is an edge that can be sandwiched between the ends of the dash pad 7 around the seat surface 6b.

一対のペダル支持壁３７は、通孔３６ａ（オペレーティングロッド２１）を挟んで車幅方向に並ぶ壁部で形成される。この一対のペダル支持壁３７間に、ブレーキペダル３１が回動可能に組み付けられている。ちなみに、図１中３８は、ブレーキペダル端をペダル支持壁３７に回動可能に支持するピン部材を示す。
このペダルブラケット３３の座面部３５は、ダッシュパネル５の車室内側の座面６ｂと重なり、外周縁部で座面６ｂ周りのダッシュパッド端を挟み込む。座面部３５の通孔３６ａからは、ブレーキブースタ９の筒形部２３やオペレーティングロッド２１が貫通し、車室内側へ突き出る。また座面部３５のボルト孔３６ｂからは、ブレーキブースタ９のボルト部材１７が突き出る。ボルト部材１７端には、ナット部材３９がねじ込まれ、ブレーキブースタ９、ペダルブラケット３３をダッシュパネル５に固定する。そして、オペレーティングロッド２１の端部は、クレビス２５を介して、ブレーキペダル３１の中間部に接続され、ブレーキペダル３１の踏力で、オペレーティングロッド２１が操作されると、ブレーキブースタ９のアシスト機能が発揮される構造としている。 The pair of pedal support walls 37 are formed of wall portions arranged in the vehicle width direction with the through hole 36a (operating rod 21) interposed therebetween. A brake pedal 31 is rotatably mounted between the pair of pedal support walls 37. Incidentally, reference numeral 38 in FIG. 1 denotes a pin member that rotatably supports the brake pedal end on the pedal support wall 37.
The seat surface portion 35 of the pedal bracket 33 overlaps with the seat surface 6b on the vehicle interior side of the dash panel 5 and sandwiches the dash pad end around the seat surface 6b at the outer peripheral edge portion. From the through hole 36a of the seat surface portion 35, the cylindrical portion 23 and the operating rod 21 of the brake booster 9 penetrate and protrude toward the vehicle interior side. Further, the bolt member 17 of the brake booster 9 protrudes from the bolt hole 36 b of the seat surface portion 35. A nut member 39 is screwed into the bolt member 17 and fixes the brake booster 9 and the pedal bracket 33 to the dash panel 5. The end portion of the operating rod 21 is connected to the middle portion of the brake pedal 31 via the clevis 25. When the operating rod 21 is operated by the depression force of the brake pedal 31, the assist function of the brake booster 9 is exhibited. The structure is made.

こうしたブレーキ構造は、ペダル踏力入力部１９と通孔５ａ，３６ａとの間の間隙から、外部騒音であるエンジンルーム３内の騒音が車室１に侵入することがある。そこで、ダッシュパネル５の車室内側には、この騒音の侵入を抑える手立てが講じられている。これには、ダッシュパネル５の車室内側の側面にカバー部材４５を設ける構造が用いられる。
具体的には、図１〜図３に示されるようにカバー部材４５は、通孔３６ａの開口縁部をなす座面部３５部分に沿って環状に配置されるフランジ部４７（本願の第１フランジ部に相当）と、フランジ部４７の内周部から軸方向に延びる筒形のカバー部４９（本願の第１カバー部に相当）とを有している。フランジ部４７は、ボルト孔３６ｂ（ペダルブラケット３３）と対応した位置にボルト孔４８が設けられている。 In such a brake structure, noise in the engine room 3 that is external noise may enter the vehicle compartment 1 from the gap between the pedal depression force input portion 19 and the through holes 5a and 36a. Therefore, measures are taken on the interior side of the dash panel 5 to suppress the intrusion of noise. For this, a structure in which a cover member 45 is provided on the side surface of the dash panel 5 on the vehicle interior side is used.
Specifically, as shown in FIGS. 1 to 3, the cover member 45 includes a flange portion 47 (the first flange of the present application) that is annularly disposed along the seat surface portion 35 that forms the opening edge of the through hole 36 a. And a cylindrical cover portion 49 (corresponding to the first cover portion of the present application) extending in the axial direction from the inner peripheral portion of the flange portion 47. The flange portion 47 is provided with a bolt hole 48 at a position corresponding to the bolt hole 36b (pedal bracket 33).

またカバー部４９は、通孔３６ａ（ペダルブラケット３３）から突き出る筒形部２３を外側から覆い、さらに筒形部２３から突き出るオペレーティングロッド２１の先端側、例えばオペレーティングロッド２１が最も縮んだときのクレビス２５近くの外周面（ロッドの先端部近傍）までを覆う筒形をなしている。ちなみにカバー部４９端は、内方へ絞られる形状、例えば逆Ｌ形に形成され、この逆Ｌ形に絞られた絞り部５０にて、オペレーティングロッド２１の外周面近くまでを覆っている。   The cover portion 49 covers the cylindrical portion 23 protruding from the through hole 36a (pedal bracket 33) from the outside, and further, the distal end side of the operating rod 21 protruding from the cylindrical portion 23, for example, the clevis when the operating rod 21 is most contracted. It has a cylindrical shape that covers up to 25 outer peripheral surfaces (near the tip of the rod). Incidentally, the end of the cover portion 49 is formed in a shape that is squeezed inward, for example, in an inverted L shape, and the throttle portion 50 that is squeezed in the inverted L shape covers the vicinity of the outer peripheral surface of the operating rod 21.

すなわち、カバー部材４５のフランジ部４７は、通孔３６ａ周りの座面部３５と重なるように配置される。カバー部４９は、車室外側から車室内側へ突き出た筒形部２３の外側、ブーツ部材２７の外側、オペレーティングロッド２１の先端側の外周面までを覆う。フランジ部４７のボルト孔４８からは、ブレーキブースタ９のボルト部材１７が突き出る。このボルト部材１７端には、ナット部材３９がねじ込まれる。これにより、カバー部材４５は、ブレーキブースタ９およびペダルブラケット３３と共にダッシュパネル５に共締される。と共に一対のペダル支持壁３７間に収まる構造としている。   That is, the flange portion 47 of the cover member 45 is disposed so as to overlap the seat surface portion 35 around the through hole 36a. The cover part 49 covers the outer side of the cylindrical part 23 protruding from the outer side of the passenger compartment to the inner side of the passenger compartment, the outer side of the boot member 27, and the outer peripheral surface on the distal end side of the operating rod 21. The bolt member 17 of the brake booster 9 protrudes from the bolt hole 48 of the flange portion 47. A nut member 39 is screwed into the end of the bolt member 17. As a result, the cover member 45 is fastened together with the dash panel 5 together with the brake booster 9 and the pedal bracket 33. At the same time, the structure fits between the pair of pedal support walls 37.

つまり、カバー部材４５は、デッドスペースとなる一対のペダル支持壁３７間に収められながら、ペダル踏力入力部１９（筒形部２３とオペレーティングロッド２１）と通孔５ａ，３６ａとの間の間隙を遮る。
したがって、ダッシュパネル５の車室内側に設けたカバー部材４５により、エンジンルーム３の騒音が車室１へ侵入する侵入経路（筒形部２３，オペレーティングロッド２１と通孔５ａ，３６ａ間）は遮られる（遮音）。この遮音構造は、ブレーキブースタ９の支持剛性の低下をもたらすことはないので、ブレーキペダル３１のペダルフィーリングを低下させることはない。 That is, the cover member 45 is accommodated between the pair of pedal support walls 37 serving as a dead space, and a gap between the pedal depression force input portion 19 (the cylindrical portion 23 and the operating rod 21) and the through holes 5a and 36a is provided. Block it.
Therefore, the cover member 45 provided on the dash panel 5 on the vehicle interior side blocks the intrusion path (between the cylindrical portion 23, the operating rod 21 and the through holes 5a, 36a) through which the noise in the engine room 3 enters the vehicle interior 1. (Sound insulation). Since this sound insulation structure does not cause a decrease in the support rigidity of the brake booster 9, the pedal feeling of the brake pedal 31 is not reduced.

よって、ペダルフィーリングに影響を与えずに、外部騒音が車室１内へ侵入するのを防ぐことができる。特にカバー部材４５は、フランジ部４７と、筒形部２３からオペレーティングロッド２１までを覆う筒形のカバー部４９とを組み合わせた構造なので、簡単な構造ですむ。しかも、カバー部材４５には、ブレーキブースタ９のボルト部材１７を用いて、ペダルブラケット３３、ブレーキブースタ９と共締して固定されるとしたので、固定も簡単な構造ですむ。もちろん、同固定は他の構造でも構わない。   Therefore, it is possible to prevent external noise from entering the passenger compartment 1 without affecting the pedal feeling. In particular, since the cover member 45 has a structure in which the flange portion 47 and the cylindrical cover portion 49 covering the cylindrical portion 23 to the operating rod 21 are combined, a simple structure is sufficient. In addition, since the bolt member 17 of the brake booster 9 is used to fasten the cover member 45 together with the pedal bracket 33 and the brake booster 9, the cover member 45 can be easily fixed. Of course, the fixing may be another structure.

そのうえ、カバー部材４５は、ブレーキペダル３１を支持する一対のペダル支持壁３７間のデットスペースとなる空間に配置する構造としたことにより、カバー部材４５はコンパクトにダッシュパネル５に据え付けることができる。
図４は、本発明の第２の実施形態を示す。
本実施形態は、第１の実施形態の変形例で、筒形部２３までを覆うカバー部材５５を用いて遮音したものである。 In addition, the cover member 45 can be installed on the dash panel 5 in a compact manner by arranging the cover member 45 in a space that becomes a dead space between the pair of pedal support walls 37 that support the brake pedal 31.
FIG. 4 shows a second embodiment of the present invention.
This embodiment is a modification of the first embodiment, and is sound-insulated using a cover member 55 that covers up to the cylindrical portion 23.

具体的には、カバー部材５５は、通孔３６ａの開口縁部となる座面部３５に配置される環状のフランジ部５７（本願の第２フランジ部に相当）と、フランジ部５７の内周部から軸方向に延びるカバー部５９（本願の第２カバー部に相当）とを有している。フランジ部４７は、第１の実施形態と同様な構造で、ダッシュパネル５に固定される。カバー部５９は、通孔３６ａ（ペダルブラケット３３）から突き出る筒形部２３、ここでは筒形部２３の先端部外周までを覆う筒形の構造が用いられている。   Specifically, the cover member 55 includes an annular flange portion 57 (corresponding to the second flange portion of the present application) disposed on the seat surface portion 35 serving as an opening edge portion of the through hole 36a, and an inner peripheral portion of the flange portion 57. Cover portion 59 (corresponding to the second cover portion of the present application) extending in the axial direction. The flange portion 47 is fixed to the dash panel 5 with the same structure as in the first embodiment. The cover portion 59 has a cylindrical structure that covers the cylindrical portion 23 protruding from the through hole 36a (pedal bracket 33), here, up to the outer periphery of the distal end portion of the cylindrical portion 23.

このように、筒形部２３をダッシュパネル５から先端部までを覆い、騒音の侵入経路となる、筒形部２３と通孔５ａ，３６ａ間を遮るようにしても、第１の実施形態と同様の効果を奏する。この場合、両者は非移動物なので、カバー部５９の内面と筒形部２３の外周面との間に、当該貫通部の間隙を埋めるようシール部材６１を充填することにより、十分なる遮音が行える。   In this way, even if the cylindrical portion 23 is covered from the dash panel 5 to the tip portion and the space between the cylindrical portion 23 and the through holes 5a and 36a, which becomes a noise intrusion path, is blocked, The same effect is produced. In this case, since both are non-moving objects, sufficient sound insulation can be performed by filling the seal member 61 between the inner surface of the cover portion 59 and the outer peripheral surface of the cylindrical portion 23 so as to fill the gap between the through portions. .

図５は、本発明の第３の実施形態を示す。
本発明は、第１、２の実施形態の変形例で、ペダルブラケット３３、ここでは座面部３５に、カバー部材４５，５５を一体に形成したものである。こうしたカバー部材４５，５５の構造でも、第１，２と同様の効果を奏する。
但し、図４および図５において、第１の実施形態と同一部分には、同一符号を付してその説明を省略した。 FIG. 5 shows a third embodiment of the present invention.
The present invention is a modification of the first and second embodiments, in which cover members 45 and 55 are integrally formed on the pedal bracket 33, here the seat surface portion 35. The structure of the cover members 45 and 55 has the same effect as the first and second.
However, in FIG. 4 and FIG. 5, the same parts as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

なお、上述した実施形態における各構成およびそれの組合わせ等は一例であり、本発明の趣旨から逸脱しない範囲内で、構成の付加、省略、置換、およびその他の変更が可能であることはいうまでもない。また本発明は、実施形態によって限定されることはなく、「特許請求の範囲」によってのみ限定されることはいうまでもない。例えば上述した実施形態では、筒形のカバー部材を用いたが、それ以外の形状のカバー部材を用いても構わない。   It should be noted that each configuration in the above-described embodiment, a combination thereof, and the like are examples, and that addition, omission, replacement, and other modifications of the configuration can be made without departing from the spirit of the present invention. Not too long. Further, the present invention is not limited by the embodiment, and it is needless to say that the present invention is limited only by the “claims”. For example, in the above-described embodiment, the cylindrical cover member is used, but a cover member having other shapes may be used.

５ ダッシュパネル
９ ブレーキブースタ
１９ ペダル踏力入力部
２１ オペレーティングロッド（ロッド部材）
２３ 筒形部
４５，５５ カバー部材
４７ フランジ部（第１フランジ部）
４９ カバー部（第１カバー部）
５７ フランジ部（第２フランジ部）
５９ カバー部（第２カバー部）
６１ シール部材 5 Dash panel 9 Brake booster 19 Pedal pedal force input part 21 Operating rod (rod member)
23 Cylindrical part 45, 55 Cover member 47 Flange part (first flange part)
49 Cover part (first cover part)
57 Flange (second flange)
59 Cover part (second cover part)
61 Seal member

Claims (3)

車室内外を仕切るダッシュパネルの車室外側の側面に設けられたブレーキブースタを有し、当該ブレーキブースタに形成されたペダル踏力入力部が前記ダッシュパネルの通孔を通じ車室内へ突き出る車両のブレーキ構造であって、
前記ダッシュパネルの車室内側の側面には、前記ペダル踏力入力部を覆い、前記通孔と前記ペダル踏力入力部との間の間隙を遮るカバー部材を有し、
前記ブレーキ倍力装置のペダル踏力入力部は、車室内に張り出る筒形部と、前記筒形部を通じて車室内に突き出るロッド部材とを有し、
前記カバー部材は、前記ダッシュパネルの前記通孔周りの車室内側の側面に固定される第１フランジ部と、前記第１フランジ部から延びて前記筒形部から前記ロッド部材の先端側までを覆う第１カバー部とを有する
ことを特徴とする車両のブレーキ構造。 A brake structure for a vehicle having a brake booster provided on a side surface outside a vehicle compartment of a dash panel for partitioning the outside of the vehicle interior, and a pedal depression force input portion formed in the brake booster protruding into the vehicle compartment through a through hole of the dash panel Because
Wherein the side surface of the vehicle compartment side of the dash panel, covering the pedal force input portion, have a cover member that blocks a gap between the hole and the pedal force input portion,
The pedal depression force input portion of the brake booster has a cylindrical portion that protrudes into the vehicle interior, and a rod member that protrudes into the vehicle interior through the cylindrical portion,
The cover member includes a first flange portion that is fixed to a side surface of the dash panel around the through hole on the vehicle interior side, and extends from the first flange portion to the tip side of the rod member. A brake structure for a vehicle having a first cover portion for covering . 車室内外を仕切るダッシュパネルの車室外側の側面に設けられたブレーキブースタを有し、当該ブレーキブースタに形成されたペダル踏力入力部が前記ダッシュパネルの通孔を通じ車室内へ突き出る車両のブレーキ構造であって、
前記ダッシュパネルの車室内側の側面には、前記ペダル踏力入力部を覆い、前記通孔と前記ペダル踏力入力部との間の間隙を遮るカバー部材を有し、
前記ブレーキ倍力装置のペダル踏力入力部は、車室内に張り出る筒形部と、前記筒形部を通じて車室内に突き出るロッド部材とを有し、
前記カバー部材は、前記ダッシュパネルの前記通孔周りの車室内側の側面に固定される第２フランジ部と、前記第２フランジ部から延びて前記筒形部を覆う第２カバー部とを有し、
前記筒形部と前記第２カバー部材との間の間隙は、シール部材を有する
ことを特徴とする車両のブレーキ構造。 A brake structure for a vehicle having a brake booster provided on a side surface outside a vehicle compartment of a dash panel for partitioning the outside of the vehicle interior, and a pedal depression force input portion formed in the brake booster protruding into the vehicle compartment through a through hole of the dash panel Because
A side surface of the dash panel on the vehicle interior side includes a cover member that covers the pedal depression force input portion and blocks a gap between the through hole and the pedal depression force input portion,
The pedal depression force input portion of the brake booster has a cylindrical portion that protrudes into the vehicle interior, and a rod member that protrudes into the vehicle interior through the cylindrical portion,
The cover member includes a second flange portion that is fixed to a side surface on the vehicle interior side around the through hole of the dash panel, and a second cover portion that extends from the second flange portion and covers the cylindrical portion. And
Gap, vehicles brake structure further comprising a sealing member between the second cover member and the cylindrical portion. 前記ダッシュパネルは、前記ペダル踏力入力部を挟んだ車室内側の側面に、ブレーキペダルを支持する一対のペダル支持壁が配置され、
前記カバー部材は、前記一対のペダル支持壁間に配置される
ことを特徴とする請求項１または請求項２に記載の車両のブレーキ構造。
In the dash panel, a pair of pedal support walls that support a brake pedal are disposed on a side surface on the vehicle interior side across the pedal depression force input portion,
The cover member, the brake structure according to claim 1 or claim 2, characterized in that disposed in the pair of pedal support walls.
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* Cited by examiner, † Cited by third party
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