【考案の詳細な説明】この考案は、ブレーキブースタにおけるハウジングの補
強板装置に関する。[Detailed Description of the Invention] This invention relates to a reinforcing plate device for a housing in a brake booster.
従来、ブレーキブースタのハウジング（以下単にハウジ
ングという）とマスクシリンダボデーとの結合は、ブー
スタ出力による前記ハウジングの結合部の変位を補うた
め、該ハウジングの内部に補強板がスポット溶接され、
前記補強板を介在のうえ複数個の取付ネジにより締付け
られていた。Conventionally, the housing of a brake booster (hereinafter simply referred to as housing) and the mask cylinder body are connected by spot welding a reinforcing plate inside the housing in order to compensate for displacement of the joint part of the housing due to booster output.
The reinforcing plate was interposed and tightened with a plurality of mounting screws.
而して、前記取付ネジは、その数が極く少いと前記した
変位の減少や応力緩和に処する効果が少く、ハウジング
、補強板の肉厚を大にする必要を生じ、またその数が余
り多いと部品点数や工数が増え、全体的に重量増加をそ
もなうことから、一般的では３個使い程度が通例のよう
に見受けられる。Therefore, if the number of mounting screws is extremely small, the effect of reducing displacement and stress relaxation described above will be small, making it necessary to increase the wall thickness of the housing and reinforcing plate, and if there are too few of them. If there are too many, the number of parts and man-hours will increase, and the overall weight will increase, so generally it seems to be customary to use about three.
尚、前記スポット溶接の位置及びその数は第１図に示す
ように、前記取付ネジが設けられた半径の円周上におい
て、各々適数個施されていたものであるが、通常例では
各取付ネジ間に２ケ所程度（×印）であった。As shown in Fig. 1, the position and number of spot welds are an appropriate number each on the circumference of the radius where the mounting screws are provided, but in normal cases, each spot weld is There were about 2 locations (x marks) between the mounting screws.
第２図は前記したマスクシリンダとハウジンク及び補強
板の取付状態を示す。FIG. 2 shows how the above-described mask cylinder, housing, and reinforcing plate are attached.
第２図において、１がマスクシリンダボデー、２がハウ
ジング、３が補強板、４が取付ネジである。In FIG. 2, 1 is a mask cylinder body, 2 is a housing, 3 is a reinforcing plate, and 4 is a mounting screw.
従来におけるハウジング２と補強板３のスポット溶接は
、前記したように各取付ネジ間で計６ケ所程度を通例と
されていた（第１図×印）が、ブースタの軽量化を更に
進展させるべくハウジング２及び補強板３の肉厚を減少
させて耐久試験をしたところ、第２図でみられるハウジ
ング２のＡ矢示部分に補強板３からの浮き上りが生じて
この部分に応力が集中するので長期に亘っては当該部所
が疲労し、破損する不都合が発生した。In the past, spot welding between the housing 2 and the reinforcing plate 3 was generally carried out at about 6 locations between each mounting screw (marked with an x in Figure 1), as described above, but in order to further reduce the weight of the booster, we have When a durability test was conducted with the wall thicknesses of the housing 2 and the reinforcing plate 3 reduced, lifting occurred from the reinforcing plate 3 at the part indicated by arrow A of the housing 2 as seen in Figure 2, and stress was concentrated in this part. Therefore, over a long period of time, the relevant parts would become fatigued and break.
本考案は上記の応力集中を防止した上記不都合を解消す
ることを目的とするもので、その要旨とするところは、
第３図に示す如く、補強板３に固着された各取付ネジ４
の近傍で且つその後方外側部に、夫々１個所以上の溶接
による前記ハウジングと補強板との接合処理Ｂ、Ｂ’を
施したものである。The purpose of this invention is to eliminate the above-mentioned disadvantages of preventing stress concentration, and its gist is as follows:
As shown in FIG. 3, each mounting screw 4 is fixed to the reinforcing plate 3.
The housing and the reinforcing plate are joined by welding at one or more locations B and B' in the vicinity of and on the rear outer side thereof, respectively.
かくすることにより、前記ハウジングにおけるＡ矢示部
の補強板３からの浮き上りが防止され、応力の減少、耐
疲労性を増大をせしめ得たものである。This prevents the portion of the housing indicated by arrow A from lifting up from the reinforcing plate 3, reducing stress and increasing fatigue resistance.
第４図に前記従来型と本考案実施型の実験値比較応カバ
ターンを示すが、表示の如く出力３００ｋａ時発生応力
は、本考案実施のものは従前型の１７２以下に減少する
ものである。FIG. 4 shows a comparison of experimental values between the conventional type and the type according to the present invention, and as shown, the stress generated at an output of 300 ka is reduced to 172 or less in the type according to the present invention compared to the conventional type.
従って、本考案実施により前記した従来の欠陥を防止し
得ることができ、また、ハウジング補強板の肉厚をも薄
くし得て、重量軽減にも役立ち、生産合理化に寄与する
ところ大なる補強板装置を提供し得るものである。Therefore, by implementing the present invention, the above-mentioned conventional defects can be prevented, and the thickness of the housing reinforcing plate can also be reduced, which is useful for reducing weight and contributing to production rationalization. The device can be provided.
第１図は従来型補強板の説明図、第２図はマスクシリン
ダに結合された補強板を有するハウジングの一部断面図
、第３図は本考案実施補強板の説明図、第４図は従来型
と本考案実施型の補強板の結合性を対比した図表であ。１・・・・・・マスクシリンダボデー、２・・・・・・
ハウジング、３・・・・・・補強板、４・・・・・・取
付ネジ、Ｂ、Ｂ’・・・・・・溶接部所。Fig. 1 is an explanatory diagram of a conventional reinforcing plate, Fig. 2 is a partial sectional view of a housing having a reinforcing plate coupled to a mask cylinder, Fig. 3 is an explanatory diagram of a reinforcing plate according to the present invention, and Fig. 4 is an explanatory diagram of a reinforcing plate according to the present invention. FIG. 2 is a diagram comparing the bondability of reinforcing plates of a conventional type and a type implementing the present invention. 1...Mask cylinder body, 2...
Housing, 3...Reinforcement plate, 4...Mounting screws, B, B'...Welding parts.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14077280UJPS6021328Y2 (en) | 1980-10-01 | 1980-10-01 | Brake booster reinforcement plate device |
| FR8118334AFR2491022B1 (en) | 1980-10-01 | 1981-09-29 | STRENGTHENING STRUCTURE OF A SERVO-BRAKE HOUSING |
| GB8129472AGB2085105B (en) | 1980-10-01 | 1981-09-30 | Brake booster |
| DE19813139158DE3139158A1 (en) | 1980-10-01 | 1981-10-01 | "BRAKE POWER AMPLIFIER" |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14077280UJPS6021328Y2 (en) | 1980-10-01 | 1980-10-01 | Brake booster reinforcement plate device |
| Publication Number | Publication Date |
|---|---|
| JPS5763769U JPS5763769U (en) | 1982-04-15 |
| JPS6021328Y2true JPS6021328Y2 (en) | 1985-06-25 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14077280UExpiredJPS6021328Y2 (en) | 1980-10-01 | 1980-10-01 | Brake booster reinforcement plate device |
| Country | Link |
|---|---|
| JP (1) | JPS6021328Y2 (en) |
| DE (1) | DE3139158A1 (en) |
| FR (1) | FR2491022B1 (en) |
| GB (1) | GB2085105B (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5892164U (en)* | 1981-12-16 | 1983-06-22 | アイシン精機株式会社 | brake booster |
| US4779516A (en)* | 1985-09-16 | 1988-10-25 | General Motors Corporation | Cam and lock vacuum booster mount with locking arm |
| JPH0334366Y2 (en)* | 1985-09-30 | 1991-07-22 | ||
| JPS6256478U (en)* | 1985-09-30 | 1987-04-08 | ||
| DE19506607A1 (en)* | 1995-02-24 | 1996-08-29 | Teves Gmbh Alfred | Motor vehicle actuation unit |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2814372C2 (en)* | 1978-04-04 | 1986-04-24 | Alfred Teves Gmbh, 6000 Frankfurt | Mechanically controlled braking device for a motor vehicle |
| DE2814419C2 (en)* | 1978-04-04 | 1986-04-10 | Alfred Teves Gmbh, 6000 Frankfurt | Mechanically controlled braking device for a motor vehicle |
| Publication number | Publication date |
|---|---|
| DE3139158A1 (en) | 1982-06-03 |
| FR2491022A1 (en) | 1982-04-02 |
| FR2491022B1 (en) | 1985-12-27 |
| GB2085105B (en) | 1984-07-25 |
| GB2085105A (en) | 1982-04-21 |
| JPS5763769U (en) | 1982-04-15 |
| Publication | Publication Date | Title |
|---|---|---|
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