JPH0331657Y2 - - Google Patents
Info
- Publication number
- JPH0331657Y2 JPH0331657Y2 JP1984076857U JP7685784U JPH0331657Y2 JP H0331657 Y2 JPH0331657 Y2 JP H0331657Y2 JP 1984076857 U JP1984076857 U JP 1984076857U JP 7685784 U JP7685784 U JP 7685784U JP H0331657 Y2 JPH0331657 Y2 JP H0331657Y2
- Authority
- JP
- Japan
- Prior art keywords
- joint
- negative pressure
- protrusion
- hole
- substrate
- 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
- 239000000758 substrate Substances 0.000 claims description 15
- 238000007789 sealing Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
- B60T13/24—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being gaseous
- B60T13/46—Vacuum systems
- B60T13/52—Vacuum systems indirect, i.e. vacuum booster units
- B60T13/567—Vacuum systems indirect, i.e. vacuum booster units characterised by constructional features of the casing or by its strengthening or mounting arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/04—Arrangements of piping, valves in the piping, e.g. cut-off valves, couplings or air hoses
- B60T17/043—Brake line couplings, air hoses and stopcocks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/04—Arrangements of piping, valves in the piping, e.g. cut-off valves, couplings or air hoses
- B60T17/046—Devices for pipe guiding and fixing
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Braking Systems And Boosters (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
- Branch Pipes, Bends, And The Like (AREA)
Description
【考案の詳細な説明】
(産業上の利用分野)
この考案は、車両等のブレーキあるいはクラツ
チ装置において使用される負圧式倍力装置に関連
する技術、特に、負圧配管のための継手の取付け
構造に関するものである。[Detailed description of the invention] (Field of industrial application) This invention is a technology related to negative pressure boosters used in brake or clutch devices of vehicles, etc., and in particular, the installation of joints for negative pressure piping. It's about structure.
(従来の技術)
一般に、負圧式倍力装置においては、シエル外
面に継手を取り付け、その継手を用いてシエル内
部の負圧室をエンジンのインテークマニホルド等
の外部負圧源に連絡するようにしている。(Prior Art) Generally, in a negative pressure booster, a joint is attached to the outer surface of the shell, and the joint is used to connect the negative pressure chamber inside the shell to an external negative pressure source such as an engine intake manifold. There is.
ところで、前記継手が逆止弁組立て体を兼ねる
ような場合、その継手は、前記シエルに設けた開
口に密封部材を介して嵌着されている。こうした
継手では、車両等の走行時に生じる振動、衝撃等
を考慮した場合、それに回り止めおよび抜け止め
を施すことが必要である。 By the way, when the joint serves as a check valve assembly, the joint is fitted into an opening provided in the shell via a sealing member. In consideration of vibrations, shocks, etc. that occur when a vehicle is running, such a joint needs to be prevented from rotating and from coming off.
この継手の回り止めおよび抜け止めのための一
つの手法として、継手の嵌着位置に近いシエル外
壁に基板を固着する一方、継手側に突部を形成
し、この突部を前記基板にねじ止めするという方
法が考えられる。 One method for preventing the joint from rotating and coming off is to fix the board to the outer wall of the shell near the fitting position of the joint, while forming a protrusion on the joint side, and screwing this protrusion to the board. One possible method is to do so.
(考案が解決しようとする問題点)
既述した回り止めおよび抜け止めについて種々
検討したところ、継手を基板に対して強固に固定
した場合、前記密封部材によるシールを均一性を
阻害したり、あるいはねじ締付け部に無理な力が
加わつて継手等に破損を生じるおそれがあること
が判つた。(Problems to be Solved by the Invention) After conducting various studies on the rotation prevention and removal prevention described above, it was found that when the joint is firmly fixed to the substrate, the uniformity of the sealing by the sealing member may be hindered, or It was found that there is a risk of damage to the joints etc. due to excessive force being applied to the screw tightening part.
この考案は、こうした問題点を簡単な手法によ
つて解決するものである。 This invention solves these problems using a simple method.
(問題点を解決するための手段)
前記問題点は、ねじ部材一本による局所的な締
付け、それも寸法誤差があるにもかかわらず無理
に締め付けることによつて生じていると考えられ
る。(Means for Solving the Problems) The above problems are thought to be caused by local tightening using a single screw member, and by forcibly tightening it despite dimensional errors.
そこで、この考案では、前記ねじ部材を前記基
板側にねじ結合するに対し、前記突部の孔に遊嵌
するようにしている。この突部の孔部分における
ねじ部材の周囲のクリアランスは、寸附誤差を吸
収しうるだけの大きさをもたせるべきではある
が、その条件下でできるだけ小さくするのが好ま
しい。 Therefore, in this invention, the screw member is screwed to the substrate side, but is loosely fitted into the hole of the protrusion. Although the clearance around the threaded member in the hole portion of the protrusion should be large enough to absorb dimensional errors, it is preferable to make it as small as possible under these conditions.
(作用)
ねじ部材を継手側の突部の孔に遊嵌するように
しているため、継手にとつてみれば、ねじ部材の
軸方向および径方向の各動きにそれぞれ若干の自
由が与えられる。この若干の自由によつて、寸法
誤差を吸収するとともに、無理付けにより破損な
どを防止することができる。なお、この自由はた
とえば1〜2mm程度のわずかなものであるので、
回り止めおよび抜け止めに支障を生じることはな
い。(Function) Since the threaded member is loosely fitted into the hole of the protrusion on the joint side, from the viewpoint of the joint, the threaded member is given some freedom in movement in the axial direction and the radial direction. This slight freedom makes it possible to absorb dimensional errors and prevent damage caused by force fitting. Note that this freedom is only a small amount, for example, 1 to 2 mm, so
There is no problem in preventing rotation or coming off.
(実施例)
負圧式倍力装置の概略構成および継手の位置づ
け(第1図参照)
負圧式倍力装置1は負圧(真空圧)を倍力媒体
としたブレーキ液圧増大のための装置であり、こ
れの全体的な構成は公知であるので(たとえば、
特公昭58−45379号公報参照)、ここではその概略
構成を述べるに止める。(Example) Schematic configuration of negative pressure booster and positioning of joints (see Figure 1) Negative pressure booster 1 is a device for increasing brake fluid pressure using negative pressure (vacuum pressure) as a boosting medium. , and the overall structure of this is known (e.g.
(Refer to Japanese Patent Publication No. 58-45379), but only its outline structure will be described here.
倍力装置1には前方シエル2と後方シエル3と
からなるシエル4があり、シエル4の内部は可動
壁5とダイヤフラム6とによつて2つの室7,8
に区画されている。前方ろ室7は負圧室、後方の
室8は高圧室である。両室7,8はたとえば、ブ
レーキ非作動時には通路9,10を通して互いに
連通しており、両方ともに外部負圧源による負圧
に保持されている。しかし、ブレーキ作動時、オ
ペレーテイングロツド11に連動して作動する弁
装置12によつて、それら両室7,8は互いに隔
離された状態となる。それにより、前方の負圧室
7が依然として負圧に保持されたままであるのに
対し、後方の高圧室8はフイルタ13を通して流
入する大気によつて大気圧に保持されることにな
る。こうした両室7,8間の差圧に基づく力が、
ペダル踏力にプラスして出力軸14を通して図示
しないマスタシリンダ側に加わり、大きなブレー
キ液圧を得ることができる。 The booster 1 has a shell 4 consisting of a front shell 2 and a rear shell 3, and the interior of the shell 4 is divided into two chambers 7 and 8 by a movable wall 5 and a diaphragm 6.
It is divided into. The front filter chamber 7 is a negative pressure chamber, and the rear chamber 8 is a high pressure chamber. Both chambers 7, 8 communicate with each other through passages 9, 10, for example, when the brakes are not activated, and both are maintained at negative pressure by an external negative pressure source. However, when the brake is applied, the two chambers 7, 8 are isolated from each other by the valve device 12 which operates in conjunction with the operating rod 11. As a result, the negative pressure chamber 7 at the front is still maintained at negative pressure, while the high pressure chamber 8 at the rear is maintained at atmospheric pressure by the atmosphere flowing in through the filter 13. The force based on the pressure difference between the two chambers 7 and 8 is
In addition to the pedal depression force, it is applied to the master cylinder side (not shown) through the output shaft 14, and a large brake fluid pressure can be obtained.
そこで、前方の負圧室7を外部の負圧源、一般
的にはエンジンのインテークマニホルドに連絡す
ることが必要であり、そのために前方シエル2の
外面に継手15が設置される。前述したとおり、
この継手15は内部に逆止弁16を有する逆止弁
組立て体でもあるので、交換可能とするため、前
方シエル2に設けた開口17に密封部材18を介
して嵌着されている。 Therefore, it is necessary to connect the front negative pressure chamber 7 to an external negative pressure source, generally the intake manifold of the engine, and for this purpose a joint 15 is installed on the outer surface of the front shell 2. As mentioned above,
Since this joint 15 is also a check valve assembly having a check valve 16 inside, it is fitted into an opening 17 provided in the front shell 2 via a sealing member 18 in order to be replaceable.
この考案では、こうした継手15の回り止めお
よび抜け止めのために以下に示すような継手取付
け構造をとる。 In this invention, the following joint mounting structure is adopted to prevent the joint 15 from rotating and coming off.
継手取付け構造の実施例1 (第2図参照)
継手15の嵌着位置の近傍に基板19が配置さ
れている。基板19は、途中2ケ所に互いに逆方
向に曲がつた角部20,21があり、そのため、
一端190と他端191との間には高低差があ
る。一端190は前方シエル2の外面にスポツト
溶接等によつて固着され、他端191は継手15
側に設けた突部22の上部に位置している。ま
た、基板19の他端191にはねじ孔23があ
り、それに整合して突部22には内径が一様な孔
24が設けられている。この場合、孔24の内径
はねじ孔23の谷の径よりも1〜2mm程度大きく
設定されている。したがつて、基板19のねじ孔
23にそれに適合したねじ部材25を結合した場
合、ねじ部材25は突部22の孔24を貫き、そ
の下端が突部22の下面よりも下方に位置する。
ここで、孔24内に入つたねじ部材25の周囲に
は前記寸法差に対応するクリアランスがあり、ま
た、突部22の上面と基板19の下面との間にも
同程度のギヤツプがある。これにより、継手15
の突部22は、ねじ部材25に対し、上下の抜け
方向および周方向にわずかではあるが、自由な動
きをなすことができる。こうした動きが、寸法誤
差を吸収するとともに、無理付けによる破損など
を防止するという利点を生む。しかし、その動き
はわずかであるので、本来的に回り止めおよび抜
け止めの機能を損なうことはない。なお、逆止弁
組立て体でもある継手15を交換する場合には、
ねじ部材25を取り外した後、継手15を少し回
転した状態で継手15自体の連結を簡単に解くこ
とができる。Embodiment 1 of Joint Mounting Structure (See FIG. 2) A substrate 19 is arranged near the fitting position of the joint 15. The board 19 has two corners 20 and 21 bent in opposite directions, and therefore,
There is a height difference between one end 190 and the other end 191. One end 190 is fixed to the outer surface of the front shell 2 by spot welding or the like, and the other end 191 is attached to the joint 15.
It is located above the protrusion 22 provided on the side. Further, there is a screw hole 23 at the other end 191 of the substrate 19, and a hole 24 having a uniform inner diameter is provided in the protrusion 22 in alignment with the screw hole 23. In this case, the inner diameter of the hole 24 is set to be approximately 1 to 2 mm larger than the diameter of the root of the screw hole 23. Therefore, when a screw member 25 suitable for the screw hole 23 of the substrate 19 is coupled, the screw member 25 passes through the hole 24 of the protrusion 22, and its lower end is located below the lower surface of the protrusion 22.
Here, there is a clearance around the screw member 25 inserted into the hole 24 corresponding to the above-mentioned dimensional difference, and there is also a gap of the same extent between the upper surface of the protrusion 22 and the lower surface of the substrate 19. As a result, the joint 15
The protrusion 22 can make a slight but free movement relative to the screw member 25 in the upper and lower removal directions and in the circumferential direction. This movement has the advantage of absorbing dimensional errors and preventing damage caused by force-fitting. However, since the movement is slight, it does not inherently impair the anti-rotation and anti-slip functions. In addition, when replacing the joint 15, which is also a check valve assembly,
After removing the screw member 25, the joint 15 itself can be easily uncoupled by slightly rotating the joint 15.
継手取付け構造の実施例2 (第3図参照)
シエルの外面に固着する基板を継手15の下方
に配置した例である。基板26は単純な板材であ
るが、それを貫くねじ孔27が設けられている。
継手15側の突部22の構成は実施例1の場合と
同様である。この実施例2では、ねじ部材25を
基板26上に立てることによつて、ねじ頭部25
0で抜け止めを図つている。したがつて、ねじ頭
部250は突部22の孔24よりも大きく設定さ
れている。なお、この実施例2においては、ねじ
部材25を取り外すだけで継手15の連結を解く
ことが可能である。Embodiment 2 of joint mounting structure (see FIG. 3) This is an example in which a substrate fixed to the outer surface of the shell is arranged below the joint 15. Although the substrate 26 is a simple plate material, a screw hole 27 is provided therethrough.
The configuration of the protrusion 22 on the side of the joint 15 is the same as in the first embodiment. In this second embodiment, by standing the screw member 25 on the substrate 26, the screw head 25
0 to prevent it from coming off. Therefore, the screw head 250 is set larger than the hole 24 of the protrusion 22. In this second embodiment, it is possible to disconnect the joint 15 simply by removing the screw member 25.
継手取付け構造の実施例3 (第4図参照)
基板の他端を二股形状になした例である。基板
28は実施例1のものと似ているが、他端280
側が二股になつている。この二股部分281,2
82の間に突部22が位置しており、ねじ部材2
5は突部22の孔24に遊嵌しているのに対し、
二股部分281,282においてねじ結合されて
いる。したがつて、これによる作用効果は実施例
1のものとほぼ同様であるが、ねじ部材25を突
部22の上下でねじ結合しているので、衝撃に強
い構造となつている。Embodiment 3 of joint attachment structure (see Fig. 4) This is an example in which the other end of the board is bifurcated. The substrate 28 is similar to that of Example 1, but the other end 280
The sides are forked. This bifurcated part 281,2
The protrusion 22 is located between 82 and the screw member 2
5 is loosely fitted into the hole 24 of the protrusion 22,
The bifurcated portions 281 and 282 are screwed together. Therefore, the effect is almost the same as that of the first embodiment, but since the screw members 25 are screwed together above and below the protrusion 22, the structure is strong against impact.
なお、いずれの実施例でもねじ部材25の径を
軸方向に沿う各箇所で一様にしているが、ねじ孔
に対応する部分のみにねじを切り、突部22の孔
24に入る部分を他より小径になすこともでき
る。 In each of the embodiments, the diameter of the threaded member 25 is made uniform at each location along the axial direction, but only the portion corresponding to the screw hole is threaded, and the portion that enters the hole 24 of the protrusion 22 is threaded. It can also be made smaller in diameter.
(効果)
この考案では、回り止めおよび抜け止めのため
に用いるねじ部材25を、前記基板19,26,
28側にねじ結合させているのに対し、継手15
側の突部22の孔24に遊嵌させているので、寸
法誤差を吸収するとともに、無理付けによる破損
を防止し、さらにシールの均一性を確保すること
ができる。(Effects) In this invention, the screw member 25 used for preventing rotation and coming off is connected to the substrates 19, 26,
While the joint 15 is screwed to the 28 side,
Since it is loosely fitted into the hole 24 of the side protrusion 22, it is possible to absorb dimensional errors, prevent damage due to forceful fitting, and ensure uniformity of the seal.
しかも、在来のものにわずかな変更を加えるだ
けであるので、容易に実施することができる。 Moreover, since only slight changes are made to the conventional method, it can be easily implemented.
第1図はこの考案が適用される負圧式倍力装置
の全体構成を示す断面図、第2図は継手取付け構
造の実施例1を示す要部拡大図、第3図は実施例
2を示す要部拡大図、第4図は実施例3を示す要
部拡大図である。
1……負圧式倍力装置、4……シエル、7……
負圧室、15……継手、17……開口、18……
密封部材、19,26,28……基板、22……
突部、23,27……ねじ孔、24……孔。
Fig. 1 is a cross-sectional view showing the overall configuration of a negative pressure booster to which this invention is applied, Fig. 2 is an enlarged view of main parts showing Embodiment 1 of the joint mounting structure, and Fig. 3 is illustrating Embodiment 2. FIG. 4 is an enlarged view of main parts showing the third embodiment. 1... Negative pressure booster, 4... Ciel, 7...
Negative pressure chamber, 15...Joint, 17...Opening, 18...
Sealing member, 19, 26, 28...Substrate, 22...
Projection, 23, 27... screw hole, 24... hole.
Claims (1)
して継手を嵌着するとともに、当該継手の近傍で
シエル外壁に基板を固着し、前記継手に突出形成
した突部と前記基板とに整合して設けた孔にねじ
部材を挿通し、これにより負圧配管を接続される
継手の回り止めおよび抜け止めを施して成る負圧
式倍力装置の継手取付け構造において、前記ねじ
部材は前記基板側にねじ結合するに対し、前記突
部の孔に遊嵌して成る負圧式倍力装置の継手取付
け構造。 A joint is fitted into the opening of the shell that defines a negative pressure chamber via a sealing member, and a substrate is fixed to the outer wall of the shell near the joint, and a protrusion formed protruding from the joint is aligned with the substrate. In a joint mounting structure for a negative pressure booster, in which a screw member is inserted into a hole provided in the hole provided in the substrate, the joint to which the negative pressure piping is connected is prevented from rotating and coming off. A joint mounting structure for a negative pressure booster, which is screwed into the hole of the protrusion and is loosely fitted into the hole of the protrusion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984076857U JPS60188679U (en) | 1984-05-25 | 1984-05-25 | Joint mounting structure of negative pressure booster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984076857U JPS60188679U (en) | 1984-05-25 | 1984-05-25 | Joint mounting structure of negative pressure booster |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60188679U JPS60188679U (en) | 1985-12-13 |
| JPH0331657Y2 true JPH0331657Y2 (en) | 1991-07-04 |
Family
ID=30619379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1984076857U Granted JPS60188679U (en) | 1984-05-25 | 1984-05-25 | Joint mounting structure of negative pressure booster |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60188679U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6179444B2 (en) * | 2014-03-31 | 2017-08-16 | 日立オートモティブシステムズ株式会社 | Pneumatic booster |
-
1984
- 1984-05-25 JP JP1984076857U patent/JPS60188679U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60188679U (en) | 1985-12-13 |
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