JPH088267Y2 - Throttle valve support device for internal combustion engine - Google Patents
Throttle valve support device for internal combustion engineInfo
- Publication number
- JPH088267Y2 JPH088267Y2 JP1989100463U JP10046389U JPH088267Y2 JP H088267 Y2 JPH088267 Y2 JP H088267Y2 JP 1989100463 U JP1989100463 U JP 1989100463U JP 10046389 U JP10046389 U JP 10046389U JP H088267 Y2 JPH088267 Y2 JP H088267Y2
- Authority
- JP
- Japan
- Prior art keywords
- retainer
- ball bearing
- throttle valve
- annular space
- internal combustion
- 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 - Lifetime
Links
- 238000002485 combustion reaction Methods 0.000 title claims description 7
- 230000002093 peripheral effect Effects 0.000 claims description 13
- 238000002788 crimping Methods 0.000 claims 1
- 230000007257 malfunction Effects 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
Landscapes
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Description
【考案の詳細な説明】 〈産業上の利用分野〉 本考案は、機関吸気通路に配設されたスロットルバル
ブを回動自由に支持する支持装置に関する。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a support device for rotatably supporting a throttle valve arranged in an engine intake passage.
〈従来の技術〉 従来のこの種のスロットルバルブ支持装置としては、
第２図に示すようなものがある。<Prior Art> As a conventional throttle valve support device of this type,
There is one as shown in FIG.
即ち、図において、機関吸気通路に配設されたスロッ
トルバルブ１を固定したシャフト２両側の回動支持部を
支持するボールベアリング３は、スロットルチャンバの
ボディ４の前記回動支持部周りに形成された環状空間５
に配設される。前記ボールベアリング３の内輪は、シャ
フト２に圧入固定される。ボールベアリング３は前記環
状空間５に圧入したスラスト方向の押さえである略環状
のリテーナ６により固定保持される（図の×部が圧入箇
所を示す）。That is, in the figure, the ball bearings 3 for supporting the rotation supporting portions on both sides of the shaft 2 fixed to the throttle valve 1 disposed in the engine intake passage are formed around the rotation supporting portion of the body 4 of the throttle chamber. Ring space 5
Is installed in. The inner ring of the ball bearing 3 is press-fitted and fixed to the shaft 2. The ball bearing 3 is fixed and held by a substantially annular retainer 6 which is press-fitted into the annular space 5 and which is a thrust-side presser (the portion x in the drawing indicates a press-fitted portion).
ここで、上記シャフト２は鉄製、ボールベアリング３
はSUS製、スロットルチャンバのボディ４はアルミニュ
ーム製、リテーナ６は鉄製である。Here, the shaft 2 is made of iron, and the ball bearing 3 is used.
Is made of SUS, the body 4 of the throttle chamber is made of aluminum, and the retainer 6 is made of iron.
〈考案が解決しようとする課題〉 しかしながら、このような従来のスロットルバルブ支
持装置にあっては、高温、加振下において、リテーナ６
とボディ４との圧入固定状態が不安定になって該リテー
ナ６よるボールベアリング３の押さえ固定が不十分とな
り、該ボールベアリング３がスラスト方向にスライドす
る等、ボールベアリング３とボディ４間にガタ付が生
じ、アルミニューム製のスロットルチャンバのボディ４
の環状空間５の内壁面を摩耗させてしまう（図の斜線部
Ａが摩耗箇所を示す）。この結果、シャフト２のガタ付
が生じて、スロットルバルブ１の作動不良が発生すると
いう問題点があった。<Problems to be Solved by the Invention> However, in such a conventional throttle valve support device, the retainer 6 is operated under high temperature and vibration.
The press-fitting fixing state between the ball bearing 3 and the body 4 becomes unstable, so that the retainer 6 cannot hold and fix the ball bearing 3 sufficiently, and the ball bearing 3 slides in the thrust direction. Sticking occurs, the body 4 of the aluminum throttle chamber
The inner wall surface of the annular space 5 is abraded (hatched portion A in the figure indicates a worn portion). As a result, there is a problem in that the shaft 2 is loosened and the throttle valve 1 malfunctions.
そこで、本考案は以上のような従来の問題点に鑑み、
リテーナによるボールベアリングの固定構造の改良を図
り、スロットルバルブの作動不良の発生を抑えることを
目的とする。Therefore, in view of the above conventional problems, the present invention has
The purpose is to improve the structure for fixing the ball bearing by the retainer and to prevent the malfunction of the throttle valve.
〈課題を解決するための手段〉 このため、本考案は、機関吸気通路に配設されたスロ
ットルバルブを固定したシャフト両側の回動支持部を支
持するボールベアリングを、スロットルチャンバのボデ
ィの前記回動支持部周りに形成された環状空間に配設
し、前記ボールベアリングの内輪を該シャフトに圧入固
定する一方、該ボールベアリングを前記環状空間に圧入
したスラスト方向の押さえであるリテーナにより固定保
持するよした内燃機関のスロットルバルブ支持装置にお
いて、前記リテーナに前記ボールベアリング外周面を被
う筒状部を一体に形成し、該筒状部の先端部をかしめて
該ボールベアリングの外輪に係合することにより、リテ
ーナとボールベアリングとを固定状態とし、リテーナの
筒状部の外周面と環状空間の内周面間に、かしめ時のリ
テーナの脹らみを逃がす隙間部を形成した。<Means for Solving the Problems> Therefore, according to the present invention, a ball bearing for supporting a rotation support portion on both sides of a shaft, which fixes a throttle valve arranged in an engine intake passage, is provided with a ball bearing for supporting the rotation of the body of the throttle chamber. The ball bearing is arranged in an annular space formed around the dynamic support portion, and the inner ring of the ball bearing is press-fitted and fixed to the shaft, while the ball bearing is fixedly held by a retainer that is press-fitted in the annular space and is a thrust direction presser. In such a throttle valve support device for an internal combustion engine, the retainer is integrally formed with a tubular portion that covers the outer peripheral surface of the ball bearing, and the distal end of the tubular portion is caulked to engage with the outer ring of the ball bearing. By doing so, the retainer and the ball bearing are fixed, and the caulking between the outer peripheral surface of the tubular portion of the retainer and the inner peripheral surface of the annular space is performed. A gap was formed to allow the retainer's bulge to escape.
〈作用〉 かかる構成においては、リテーナとボールベアリング
とを直接固定状態にしているため、高温、加振下におい
て、リテーナとボディとの圧入状態が不安定になって
も、ボールベアリングとボディ間にガタ付が生じず、該
ボディの環状空間の内壁面の摩耗が発生せず、シャフト
のガタ付が生じず、スロットルボルブの作動不良の発生
を抑えることが可能となる。<Operation> In this configuration, since the retainer and the ball bearing are directly fixed to each other, even if the press-fitted state between the retainer and the body becomes unstable under high temperature and vibration, the space between the ball bearing and the body is unstable. The rattling does not occur, the inner wall surface of the annular space of the body does not wear, the shaft does not ratt, and the malfunction of the throttle valve can be suppressed.
又、リテーナの筒状部の外周面と環状空間の内周面間
に形成された隙間部により、前記かしめ時にリテーナの
脹らみが生じても問題がない。Further, there is no problem even if the retainer expands during the caulking due to the gap formed between the outer peripheral surface of the tubular portion of the retainer and the inner peripheral surface of the annular space.
〈実施例〉 以下、本考案の実施例を図面に基づいて説明する。<Embodiment> An embodiment of the present invention will be described below with reference to the drawings.
第１図において、機関吸気通路に配設されたスロット
ルバルブ１を固定したシャフト２両側の回動支持部を支
持するボールベアリング３は、スロットルチャンバのボ
ディ４の前記回動支持部周りに形成された環状空間５に
配設され、前記ボールベアリング３の内輪は、シャフト
２に圧入固定され、ボールベアリング３は前記環状空間
５に圧入したスラスト方向の押さえである略環状のリテ
ーナ16により固定保持される構成は従来と同様である。In FIG. 1, a ball bearing 3 for supporting a rotary support portion on both sides of a shaft 2 fixed to a throttle valve 1 disposed in an engine intake passage is formed around the rotary support portion of a body 4 of a throttle chamber. Is disposed in the annular space 5, the inner ring of the ball bearing 3 is press-fitted and fixed to the shaft 2, and the ball bearing 3 is fixedly held by a substantially annular retainer 16 which is press-fitted in the annular space 5 and which is a thrust direction presser. The configuration is similar to the conventional one.
ここで、前記リテーナ16には、前記ボールベアリング
３外周面を被う筒状部16aが一体に形成されており、該
筒状部16aの先端部をかしめて該ボールベアリング３の
外輪に係合してある。Here, the retainer 16 is integrally formed with a cylindrical portion 16a covering the outer peripheral surface of the ball bearing 3, and the distal end of the cylindrical portion 16a is caulked to engage with the outer ring of the ball bearing 3. I am doing it.
従って、これにより、リテーナ16とボールベアリング
３とが固定状態となる。Therefore, by this, the retainer 16 and the ball bearing 3 are fixed.
尚、リテーナ16の筒状部16aの外周面と環状空間５の
内周面間には隙間部７が形成されており、かしめ時にお
けるリテーナ16の膨らみをこの隙間部７で逃がすように
している。A gap 7 is formed between the outer peripheral surface of the tubular portion 16a of the retainer 16 and the inner peripheral surface of the annular space 5 so that the bulge of the retainer 16 during caulking can be escaped through this gap 7. .
かかる構成においては、リテーナ16とボールベアリン
グ３とを直接固定状態にしているため、高温、加振下に
おいて、リテーナ16とボディ４との圧入状態が不安定に
なっても、ボールベアリング３とボディ４間にはガタ付
が生じず、該ボディ４の環状空間５の内壁面の摩耗が発
生しない。この結果、シャフト２のガタ付が生じず、ス
ロットルバルブ１の作動不良の発生を抑えることが可能
となる。In such a configuration, since the retainer 16 and the ball bearing 3 are directly fixed to each other, even if the retainer 16 and the body 4 become unstable in the press-fitted state under high temperature and vibration, the ball bearing 3 and the body 4 are not stable. No rattling occurs between the four portions, and the inner wall surface of the annular space 5 of the body 4 is not worn. As a result, rattling of the shaft 2 does not occur, and it is possible to suppress malfunction of the throttle valve 1.
〈考案の効果〉 以上説明したように、本考案の内燃機関のスロットル
バルブ支持装置によると、ボールベアリングをスロット
ルチャンバのボディの環状空間に圧入したスラスト方向
の押さえであるリテーナにより固定保持するようにした
ものにおいて、リテーナとボールベアリングとを直接固
定状態としたから、ボールベアリングとボディ間にはガ
タ付が生じず、ボディの環状空間の内壁面の摩耗が発生
しないため、シャフトのガタ付が生じず、スロットルバ
ルブの作動不良の発生を抑え、安定したスロットルバル
ブの作動状態を得られ、特に、リテーナの筒状部の外周
面と環状空間の内周面間に、かしめ時のリテーナの脹ら
みを逃がす隙間部を形成したから、前記リテーナの脹ら
みが生じても問題がなく、かしめをスムーズに行うこと
ができる実用的効果大なるものである。<Effects of the Invention> As described above, according to the throttle valve supporting device for an internal combustion engine of the present invention, the ball bearing is fixedly held by the retainer which is the thrust-direction pressing member press-fitted into the annular space of the body of the throttle chamber. In this case, since the retainer and the ball bearing were directly fixed to each other, there was no backlash between the ball bearing and the body, and the inner wall surface of the annular space of the body was not worn, so that the shaft was backlashed. Therefore, it is possible to suppress the occurrence of malfunction of the throttle valve and obtain a stable operation state of the throttle valve.In particular, the expansion of the retainer during caulking between the outer peripheral surface of the tubular part of the retainer and the inner peripheral surface of the annular space can be suppressed. Since the gap that allows the escape of the retainer is formed, there is no problem even if the retainer expands, and the caulking can be performed smoothly. It has a great practical effect.
第１図は本考案に係る内燃機関のスロットルバルブ支持
装置の一実施例を示す断面図、第２図は従来の内燃機関
のスロットルバルブ支持装置の一例を示す断面図であ
る。 １……スロットルバルブ、２……シャフト ３……ボールベアリング、４……ボディ、５……環状空
間、16……リテーナ、16a……筒状部FIG. 1 is a sectional view showing an embodiment of a throttle valve supporting device for an internal combustion engine according to the present invention, and FIG. 2 is a sectional view showing an example of a conventional throttle valve supporting device for an internal combustion engine. 1 ... Throttle valve, 2 ... Shaft 3 ... Ball bearing, 4 ... Body, 5 ... Annular space, 16 ... Retainer, 16a ... Cylindrical part
Claims (1)
ブを固定したシャフト両側の回動支持部を支持するボー
ルベアリングを、スロットルチャンバのボディの前記回
動支持部周りに形成された環状空間に配設し、前記ボー
ルベアリングの内輪を該シャフトに圧入固定する一方、
該ボールベアリングを前記環状空間に圧入したスラスト
方向の押さえであるリテーナにより固定保持するように
した内燃機関のスロットルバルブ支持装置において、前
記リテーナに前記ボールベアリング外周面を被う筒状部
を一体に形成し、該筒状部の先端部をかしめて該ボール
ベアリングの外輪に係合することにより、リテーナとボ
ールベアリングとを固定状態とし、リテーナの筒状部の
外周面と環状空間の内周面間に、かしめ時のリテーナの
脹らみを逃がす隙間部を形成したことを特徴とする内燃
機関のスロットルバルブ支持装置。1. A ball bearing for supporting a rotary support portion on both sides of a shaft, to which a throttle valve disposed in an engine intake passage is fixed, is provided in an annular space formed around the rotary support portion of a body of a throttle chamber. And the inner ring of the ball bearing is press-fitted and fixed to the shaft,
In a throttle valve supporting device for an internal combustion engine, wherein the ball bearing is fixedly held by a retainer that is press-fitted in the annular space in a thrust direction, a tubular portion that covers the outer peripheral surface of the ball bearing is integrally formed with the retainer. The retainer and the ball bearing are fixed by crimping the tip of the tubular portion and engaging the outer ring of the ball bearing, and the outer peripheral surface of the tubular portion of the retainer and the inner peripheral surface of the annular space are formed. A throttle valve support device for an internal combustion engine, characterized in that a gap is formed between the retainer and the retainer when swaging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989100463U JPH088267Y2 (en) | 1989-08-30 | 1989-08-30 | Throttle valve support device for internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989100463U JPH088267Y2 (en) | 1989-08-30 | 1989-08-30 | Throttle valve support device for internal combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0341144U JPH0341144U (en) | 1991-04-19 |
| JPH088267Y2 true JPH088267Y2 (en) | 1996-03-06 |
Family
ID=31649470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989100463U Expired - Lifetime JPH088267Y2 (en) | 1989-08-30 | 1989-08-30 | Throttle valve support device for internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH088267Y2 (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63156439U (en) * | 1987-03-31 | 1988-10-13 | ||
| JPS6424129U (en) * | 1987-07-30 | 1989-02-09 |
-
1989
- 1989-08-30 JP JP1989100463U patent/JPH088267Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0341144U (en) | 1991-04-19 |
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