JPS6218530Y2 - - Google Patents
Info
- Publication number
- JPS6218530Y2 JPS6218530Y2 JP17457880U JP17457880U JPS6218530Y2 JP S6218530 Y2 JPS6218530 Y2 JP S6218530Y2 JP 17457880 U JP17457880 U JP 17457880U JP 17457880 U JP17457880 U JP 17457880U JP S6218530 Y2 JPS6218530 Y2 JP S6218530Y2
- Authority
- JP
- Japan
- Prior art keywords
- master cylinder
- seal
- booster
- shell
- elastic body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 230000035699 permeability Effects 0.000 claims 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
Landscapes
- Braking Systems And Boosters (AREA)
Description
【考案の詳細な説明】
本考案は、ブレーキ倍力装置に関するもので、
詳しくは倍力装置とマスターシリンダとの連設部
に配設するシールの支持構造に関するものであ
る。[Detailed description of the invention] This invention relates to a brake booster.
More specifically, the present invention relates to a support structure for a seal disposed at a joint between a booster and a master cylinder.
ブレーキ倍力装置（マスターバツク）は、第１
図に示したようにシエル１内をダイヤフラム２に
よつて圧力室３と大気圧室４とに分割形成すると
ともに、ダイヤフラム２を支持するパワーピスト
ン５に突設させたプツシユロツド６の先端をマス
ターシリンダ７のピストン８に当接させている。
上記ブレーキ倍力装置は、ブレーキペダル（図示
せず）の操作力でバルブを作動させ、圧力室３内
を真空にさせることによつて、その負圧でパワー
ピストン５を第１図における左方に移動させ、プ
ツシユロツド６を介してマスターシリンダ７のピ
ストン８を押送させる。 The brake booster (master back) is the
As shown in the figure, the inside of the shell 1 is divided into a pressure chamber 3 and an atmospheric pressure chamber 4 by a diaphragm 2, and the tip of a push rod 6 protruding from a power piston 5 supporting the diaphragm 2 is connected to a master cylinder. It is brought into contact with the piston 8 of No. 7.
The brake booster operates a valve using the operating force of a brake pedal (not shown) to create a vacuum in the pressure chamber 3, and uses the negative pressure to move the power piston 5 toward the left side in FIG. to push the piston 8 of the master cylinder 7 through the push rod 6.
このようなブレーキ倍力装置では、圧力室３内
を密封しなければならないことから、第２図に
拡大して示したようにシエル１におけるマスター
シリンダ７との接続個所、すなわちプツシユロツ
ド６の挿通個所にシール９を配設し、かつ該シー
ルを第２図に示したようなリテーナ１０によつ
て圧着支持させている。 In such a brake booster, since the inside of the pressure chamber 3 must be sealed, the connection point with the master cylinder 7 in the shell 1, that is, the insertion point of the push rod 6, is A seal 9 is disposed at and is supported by a retainer 10 as shown in FIG.
本考案は、上記リテーナに替えて発泡弾性体を
使用し、かつ該弾性体をシールとマスターシリン
ダとの間に介在させ、シールをシエル側に圧着支
持させ、もつて上記リテーナの複雑な形状の加工
を省き、かつ容易にシールを支持させるようにし
たものである。 The present invention uses a foamed elastic body in place of the retainer, interposes the elastic body between the seal and the master cylinder, and supports the seal by pressure on the shell side. This eliminates processing and allows the seal to be easily supported.
以下図面に示した実施例を参照して本考案を説
明する。本考案に係る倍力装置は第３図に示した
ように、シエル１におけるマスターシリンダ７と
の接続個所、すなわちシエル凹部１ａにシール９
を介装するとともに、該シールとマスターシリン
ダ７の端部７ａ間に通気性を有する発泡弾性体１
１（たとえばスコツトフイルター……商品名）を
配設し、該弾性体１１によつてシール９をシエル
側に取り囲むように支持させている。 The present invention will be described below with reference to embodiments shown in the drawings. As shown in FIG. 3, the booster according to the present invention has a seal 9 at the connection point with the master cylinder 7 in the shell 1, that is, at the shell recess 1a.
is interposed between the seal and the end 7a of the master cylinder 7.
1 (for example, Scotto Filter...trade name) is disposed, and the seal 9 is supported by the elastic body 11 so as to surround it on the shell side.
このように構成された本考案に係るブレーキ倍
力装置は、シールを支持する発泡弾性体の加工お
よび取付けが容易であり、しかもシエルとマスタ
ーシリンダとの間隙を経てマスターシリンダ内お
よびプツシユロツドとそのシール摺動部間に入込
む塵埃を発泡弾性体によつて阻止するという効果
がある。 In the brake booster according to the present invention configured in this way, the foamed elastic body that supports the seal can be easily processed and installed, and the foamed elastic body that supports the seal can be easily processed and attached to the inside of the master cylinder, the push rod, and its seal through the gap between the shell and the master cylinder. The foamed elastic body has the effect of preventing dust from entering between the sliding parts.
第１図は従来のブレーキ倍力装置を示した縦断
面図、第２図はその要部拡大断面図、第２図
はそのリテーナを示した部分正面図、第３図は本
考案に係るブレーキ倍力装置の要部の拡大断面図
である。
１……シエル、７……マスターシリンダ、７ａ
……端部、８……ピストン、１１……発泡弾性
体。
Fig. 1 is a vertical sectional view showing a conventional brake booster, Fig. 2 is an enlarged sectional view of its main parts, Fig. 2 is a partial front view showing its retainer, and Fig. 3 is a brake according to the present invention. FIG. 3 is an enlarged cross-sectional view of the main parts of the booster. 1... Ciel, 7... Master cylinder, 7a
... end, 8 ... piston, 11 ... foamed elastic body.
Claims (1)
接させ、該倍力装置のプツシユロツドを介してマ
スターシリンダ側に動力を伝達させたブレーキ倍
力装置において、 上記連接個所でプツシユロツドが貫通するシエ
ル端面に配設するシールを、該シールと上記マス
ターシリンダ端面間に介在させた通気性を有する
発泡弾性体によつて取り囲むように支持させたこ
とを特徴とするブレーキ倍力装置。[Scope of Claim for Utility Model Registration] A brake booster in which a master cylinder is connected to the end face of the shell of the booster and power is transmitted to the master cylinder side via the push rod of the booster, A brake booster characterized in that a seal disposed on an end face of a shell through which the cylinder is penetrated is surrounded and supported by a foamed elastic body having air permeability interposed between the seal and the end face of the master cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17457880U JPS6218530Y2 (en) | 1980-12-05 | 1980-12-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17457880U JPS6218530Y2 (en) | 1980-12-05 | 1980-12-05 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5796065U JPS5796065U (en) | 1982-06-12 |
| JPS6218530Y2 true JPS6218530Y2 (en) | 1987-05-13 |
Family
ID=29532535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17457880U Expired JPS6218530Y2 (en) | 1980-12-05 | 1980-12-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6218530Y2 (en) |
-
1980
- 1980-12-05 JP JP17457880U patent/JPS6218530Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5796065U (en) | 1982-06-12 |
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