JPS6135826Y2 - - Google Patents
Info
- Publication number
- JPS6135826Y2 JPS6135826Y2 JP1982069075U JP6907582U JPS6135826Y2 JP S6135826 Y2 JPS6135826 Y2 JP S6135826Y2 JP 1982069075 U JP1982069075 U JP 1982069075U JP 6907582 U JP6907582 U JP 6907582U JP S6135826 Y2 JPS6135826 Y2 JP S6135826Y2
- Authority
- JP
- Japan
- Prior art keywords
- valve
- breather
- plug
- plug body
- breather hole
- 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
- 230000005540 biological transmission Effects 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 4
- 229920003002 synthetic resin Polymers 0.000 claims description 4
- 239000000057 synthetic resin Substances 0.000 claims description 4
- 229920003051 synthetic elastomer Polymers 0.000 claims description 3
- 239000005061 synthetic rubber Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000007796 conventional method Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
Landscapes
- Closures For Containers (AREA)
- Self-Closing Valves And Venting Or Aerating Valves (AREA)
Description
【考案の詳細な説明】
（産業上の利用分野）
この考案は、トランスミツシヨン、デイフアレ
ンシヤル、アクスルハウジング、ステアリングギ
ヤボツクス等のケースに配設され、ケースの内部
圧力が高くなつたときに、このケース内のエアを
外部へ排出するためのブリーザプラグに関するも
のである。[Detailed explanation of the invention] (Industrial application field) This invention is installed in the cases of transmissions, differentials, axle housings, steering gear boxes, etc., and when the internal pressure of the case becomes high. Second, it relates to a breather plug for discharging air inside the case to the outside.
（従来の技術）
ブリーザプラグからケース内に水が侵入する
と、ケース内のオイル劣化や潤滑不良をまねく。(Conventional technology) When water enters the case from the breather plug, it causes oil deterioration and poor lubrication inside the case.
このため従来では、例えば実開昭56−104651号
公報に開示されたものがある。すなわち、これに
おいては、
「自動変速機本体にブリーザ弁Ａを有し、又自
動変速機本体に設けた作動油注入用のフイラーチ
ユーブの上端にブリーザ弁Ｂを有する車両用自動
変速機において、変速機本体内空気とフイラーチ
ユーブ内空気とを連通させる手段を設け、ブリー
ザ弁Ａを排出作用のみ行う一方向弁とし、ブリー
ザ弁Ｂを自動変速機本体の内圧変化に対応して呼
吸作用を行う吸入排出弁とし、かつブリーザ弁Ｂ
に外部からの水の浸入を防止する機構を設けたこ
とを特徴とするブリーザ機構。」を要旨とするも
のである。 For this reason, there is a conventional method disclosed in, for example, Japanese Utility Model Application Publication No. 104651/1983. In other words, in this article, "In a vehicle automatic transmission which has a breather valve A in the automatic transmission body and a breather valve B at the upper end of a filler tube for injecting hydraulic oil provided in the automatic transmission body, A means is provided to communicate the air inside the machine body with the air inside the filler tube, the breather valve A is a one-way valve that performs only an evacuation action, and the breather valve B is a suction valve that performs a breathing action in response to changes in the internal pressure of the automatic transmission main body. Exhaust valve and breather valve B
A breather mechanism characterized by having a mechanism for preventing water from entering from the outside. ” is the gist.
（考案が解決しようとする問題点）
しかしながら上記した従来のものにおいては、
ブリーザプラグの構成部品の点数が多くなり、構
造が複雑化しかつ組付性が悪くなり、コスト高と
なる等の問題点が生じる。(Problem that the invention attempts to solve) However, in the above-mentioned conventional method,
The number of component parts of the breather plug increases, which causes problems such as a complicated structure, poor assembly performance, and increased cost.
（問題点を解決するための手段）
そこでこの考案ではトランスミツシヨン、デイ
フアレンシヤル等のケースの外壁面に突設されか
つ中心部にブリーザ孔を有するプラグ本体と、こ
のプラグ本体のブリーザ孔を閉止する弁体とによ
り構成されるブリーザプラグであつて、前記弁体
は、プラグ本体の先端部外周面に凹設される環状
溝に嵌着する弾性拡開可能なＣリング状の支持部
と、該支持部に対し弾性を有する連結部を介して
支持されかつこの連結部によつてプラグ本体のブ
リーザ孔上端開口部に向けて付勢される弁蓋とに
より構成されるとともに、合成樹脂、ゴム等の可
撓性材料によつて一体成形され、前記弁蓋の下面
には前記ブリーザ孔の上端開口部に形成される弁
座とテーパにて密嵌する弁部が凸設され、しかも
この弁部が弁座に対し所定の圧力で圧接するよう
に前記連結部の弾性力が設定された構成にしたも
のである。(Means for solving the problem) Therefore, in this invention, a plug body is provided that protrudes from the outer wall surface of the case of a transmission, differential, etc. and has a breather hole in the center, and a breather hole in the plug body. A breather plug comprising a valve body that closes the valve body, the valve body having an elastically expandable C-ring shaped support part that fits into an annular groove recessed in the outer peripheral surface of the tip end of the plug body. and a valve cover that is supported by the supporting portion via an elastic connecting portion and urged toward the upper end opening of the breather hole of the plug body, and is made of synthetic resin. , is integrally molded from a flexible material such as rubber, and has a convex valve portion on the lower surface of the valve cover that is tapered and tightly fits into the valve seat formed at the upper end opening of the breather hole. The elastic force of the connecting portion is set so that the valve portion comes into pressure contact with the valve seat at a predetermined pressure.
（作用）
したがつてこの考案は、プラグ本体に対し、そ
の外周の環状溝に弁体の支持部を弾性拡開させて
嵌め込むことで、弁体が組付けられる。この状態
において、連結部の弾性力によつて、ブリーザ孔
の上端開口部の弁座に対し、弁体の弁部が所定の
圧力で圧接させることで、水封性が得られる。(Function) Therefore, in this invention, the valve body is assembled into the plug body by elastically expanding and fitting the support portion of the valve body into the annular groove on the outer periphery of the plug body. In this state, the elastic force of the connecting portion causes the valve portion of the valve body to come into pressure contact with the valve seat at the upper end opening of the breather hole at a predetermined pressure, thereby providing water-sealing properties.
ケースの内圧が所定の圧力以上に達したときに
は、ケース内圧によつて弁体の弁蓋が連結部の弾
性力に抗して押し上げられ、前記弁部と弁座との
間に隙間が生じることから、ケース内のエアが外
部へ排出される。 When the internal pressure of the case reaches a predetermined pressure or higher, the valve cover of the valve body is pushed up against the elastic force of the connecting part due to the internal pressure of the case, and a gap is created between the valve part and the valve seat. Air inside the case is exhausted to the outside.
（実施例）
以下、この考案の一実施例を図面にしたがつて
説明する。(Example) An example of this invention will be described below with reference to the drawings.
トランスミツシヨン、デイフアレンシヤル、ア
クスルハウジング、ステアリングギヤボツクス等
のケース１に配設されるブリーザプラグ２はプラ
グ本体３と弁体６とにより構成される。プラグ本
体３は、その下部がケース１に圧入あるいは螺合
によつて固定され、ケース１の外壁面より所定量
だけ突出している。このプラグ本体３の中心部に
は、下端がケース１内部に開口し、上端開口部に
テーパ状の弁座４を有するブリーザ孔５が貫設さ
れている。さらに、プラグ本体３の先端部外周面
には環状溝６が凹設されている。 A breather plug 2 disposed in a case 1 of a transmission, differential, axle housing, steering gear box, etc. is composed of a plug body 3 and a valve body 6. The lower part of the plug body 3 is fixed to the case 1 by press-fitting or screwing, and protrudes from the outer wall surface of the case 1 by a predetermined amount. A breather hole 5 having a lower end opening into the case 1 and having a tapered valve seat 4 at the upper end opening is provided in the center of the plug body 3 . Further, an annular groove 6 is formed in the outer peripheral surface of the tip end of the plug body 3.
プラグ本体３のブリーザ孔５を閉止する弁体６
は、プラグ本体３の環状溝６に嵌着するＣリング
状の支持部８と、この支持部８に対しコの字状の
連結部９を介して支持されかつ連結部９によつて
ブリーザ孔５の弁座４に向けて付勢される弁蓋１
０とにより一体状に形成され、この弁蓋１０の下
面中央部には弁座４に密嵌するテーパ状の弁部１
０ａが凸設されている。そして、弁部１０ａが弁
座４に対し所定の圧力で圧接するように、連結部
９の弾性力が設定されている。すなわち、この実
施例において、弁部１０ａを有する弁蓋１０、連
結部９及び支持部８よりなる弁体７は、合成樹
脂、ゴム等の可撓性を有する材料によつて一体成
形されるとともに、弁蓋１０は、第３図に示すよ
うに、角度θだけ下傾した状態で成形される。そ
して、第１図に示すように、プラグ本体３に弁体
７を組付けたときには、その弁蓋１０が水平状を
なし、これによつて連結部９には、弁蓋１０の弁
部１０ａを弁座４に対し所定の圧力で圧接させる
弾性力（復元力）が与えられるように設定され
る。 A valve body 6 that closes the breather hole 5 of the plug body 3
is a C-ring-shaped support portion 8 that fits into the annular groove 6 of the plug body 3, and is supported via a U-shaped connection portion 9 to the support portion 8, and is connected to the breather hole by the connection portion 9. The valve cover 1 is biased toward the valve seat 4 of 5.
The valve cover 10 has a tapered valve portion 1 that fits tightly into the valve seat 4 at the center of the lower surface of the valve cover 10.
0a is provided in a protruding manner. The elastic force of the connecting portion 9 is set so that the valve portion 10a is pressed against the valve seat 4 with a predetermined pressure. That is, in this embodiment, the valve body 7 consisting of the valve cover 10 having the valve part 10a, the connecting part 9 and the support part 8 is integrally molded from a flexible material such as synthetic resin or rubber. As shown in FIG. 3, the valve lid 10 is molded in a state in which it is tilted downward by an angle θ. As shown in FIG. 1, when the valve body 7 is assembled to the plug body 3, the valve cover 10 has a horizontal shape, so that the connecting portion 9 has a valve portion 10a of the valve cover 10. It is set so that an elastic force (restoring force) is applied to press the valve seat 4 against the valve seat 4 at a predetermined pressure.
上記の構成において、プラグ本体３に弁体６を
組付ける場合、Ｃリング状の支持部８を弾性拡開
させて、この支持部８をプラグ本体７の環状溝６
に嵌着させるとともに、弁蓋１０の弁部１０ａを
弁座４に密嵌させることで弁体７の組付けが完了
する。この状態において、連結部９の弾性力によ
つて、弁蓋１０の弁部１０ａがプラグ本体３の弁
座４に所定の圧力で圧接するため、弁部１０ａと
弁座４とのテーパ嵌合面から水が浸入することを
積極的に防止することができる。 In the above configuration, when assembling the valve body 6 to the plug body 3, the C-ring-shaped support portion 8 is elastically expanded and the support portion 8 is inserted into the annular groove of the plug body 7.
At the same time, the valve portion 10a of the valve cover 10 is tightly fitted into the valve seat 4, thereby completing the assembly of the valve body 7. In this state, the elastic force of the connecting portion 9 causes the valve portion 10a of the valve lid 10 to come into pressure contact with the valve seat 4 of the plug body 3 at a predetermined pressure, so that the valve portion 10a and the valve seat 4 are fitted in a tapered manner. It is possible to actively prevent water from entering from the surface.
一方、ケース１の内圧が所定の圧力以上に達す
ると、この圧力によつて、弁蓋７が抜止め片９の
弾性力に抗して押し上げられ、これによつて生じ
る弁部１０ａと弁座４との間の隙間からケース１
内のエアが外部へ排出される。 On the other hand, when the internal pressure of the case 1 reaches a predetermined pressure or higher, the valve cover 7 is pushed up against the elastic force of the retaining piece 9 due to this pressure. Case 1 from the gap between
The air inside is exhausted to the outside.
（考案の効果）
以上述べたように、この考案によれば、弾性拡
開可能なＣリグ状の支持部と、弾性を有する連結
部と、下面に弁部が突設された弁蓋とにより構成
される弁体は、合成樹脂、ゴム等の可撓性材料に
よつて一体成形されるため、部品点数を可及的に
減らすことができるとともに、構造が極めて簡単
となりコスト低減を図ることができる。(Effects of the invention) As described above, according to this invention, a C-rig-shaped supporting part that can be elastically expanded, an elastic connecting part, and a valve lid with a valve part protruding from the lower surface are used. The valve body is integrally molded from flexible materials such as synthetic resin and rubber, so the number of parts can be reduced as much as possible, and the structure is extremely simple, reducing costs. can.
さらに、プラグ本体に弁体を組付ける場合、プ
ラグ本体外周の環状溝に対し、支持部を弾性拡開
させて嵌め込むことで、弁体を容易にかつ手早く
組付けることができる。 Further, when assembling the valve body to the plug body, the support portion is elastically expanded and fitted into the annular groove on the outer periphery of the plug body, so that the valve body can be assembled easily and quickly.
しかも、プラグ本体に弁体を組付けた状態にお
いて、同プラグ本体のブリーザ孔の弁座に対し、
該弁座とテーパにて密嵌する弁体の弁部が連結部
の弾性力によつて所定圧力で圧接されるため、ブ
リーザ孔からの水やゴミの侵入を確実に防止する
ことができ、水封性にすぐれる効果もある。 Moreover, when the valve body is assembled to the plug body, the valve seat of the breather hole of the plug body
Since the valve portion of the valve body that tapers tightly into the valve seat is pressed against a predetermined pressure by the elastic force of the connecting portion, it is possible to reliably prevent water and dirt from entering through the breather hole. It also has excellent water-sealing properties.
図面はこの考案の一実施例を示すもので、第１
図はブリーザプラグのプラグ本体に対し弁体を組
付けた状態を示す側断面図、第２図は弁体を示す
斜視図、第３図は同じく側面図である。
１……ケース、２……ブリーザプラグ、３……
プラグ本体、４……弁座、５……ブリーザ孔、６
……環状溝、７……弁体、８……支持部、９……
連結部、１０……弁蓋、１０ａ……弁部。
The drawing shows one embodiment of this invention.
The figure is a side sectional view showing a state in which the valve body is assembled to the plug body of the breather plug, FIG. 2 is a perspective view showing the valve body, and FIG. 3 is a side view. 1... Case, 2... Breather plug, 3...
Plug body, 4... Valve seat, 5... Breather hole, 6
... Annular groove, 7 ... Valve body, 8 ... Support part, 9 ...
Connection portion, 10... Valve cover, 10a... Valve portion.
Claims (1)
ケースの外壁面に突設されかつ中心部にブリーザ
孔を有するプラグ本体と、このプラグ本体のブリ
ーザ孔を閉止する弁体とにより構成されるブリー
ザプラグであつて、前記弁体は、プラグ本体の先
端部外周面に凹設される環状溝に嵌着する弾性拡
開可能なＣリング状の支持部と、該支持部に対し
弾性を有する連結部を介して支持されかつこの連
結部によつてプラグ本体のブリーザ孔上端開口部
に向けて付勢される弁蓋とにより構成されるとと
もに、合成樹脂、ゴム等の可撓性材料によつて一
体成形され、前記弁蓋の下面には前記ブリーザ孔
の上端開口部に形成される弁座とテーパにて密嵌
する弁部が凸設され、しかもこの弁部が弁座に対
し所定の圧力で圧接するように前記連結部の弾性
力が設定されたことを特徴とするブリーザプラ
グ。 A breather plug consisting of a plug body that protrudes from the outer wall surface of a case of a transmission, differential, etc. and has a breather hole in the center, and a valve body that closes the breather hole of the plug body. The valve body includes an elastically expandable C-ring-shaped support portion that fits into an annular groove recessed in the outer circumferential surface of the tip end of the plug body, and an elastic connecting portion to the support portion. and a valve cover that is supported by the connecting portion and urged toward the upper end opening of the breather hole of the plug body, and is integrally molded from a flexible material such as synthetic resin or rubber. , a valve portion is provided on the lower surface of the valve cover and is tapered to fit tightly into a valve seat formed at the upper end opening of the breather hole, and this valve portion is pressed against the valve seat with a predetermined pressure. A breather plug characterized in that the elastic force of the connecting portion is set as follows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6907582U JPS58170474U (en) | 1982-05-11 | 1982-05-11 | Breather plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6907582U JPS58170474U (en) | 1982-05-11 | 1982-05-11 | Breather plug |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58170474U JPS58170474U (en) | 1983-11-14 |
| JPS6135826Y2 true JPS6135826Y2 (en) | 1986-10-17 |
Family
ID=30078817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6907582U Granted JPS58170474U (en) | 1982-05-11 | 1982-05-11 | Breather plug |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58170474U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9777823B2 (en) | 2010-08-05 | 2017-10-03 | Toyo Electric Mfg. Co. Ltd. | Gear device for electric motor |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS552301U (en) * | 1978-06-20 | 1980-01-09 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55122575U (en) * | 1979-02-22 | 1980-08-30 |
-
1982
- 1982-05-11 JP JP6907582U patent/JPS58170474U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS552301U (en) * | 1978-06-20 | 1980-01-09 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9777823B2 (en) | 2010-08-05 | 2017-10-03 | Toyo Electric Mfg. Co. Ltd. | Gear device for electric motor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58170474U (en) | 1983-11-14 |
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