JPH0442564Y2 - - Google Patents
Info
- Publication number
- JPH0442564Y2 JPH0442564Y2 JP1985073700U JP7370085U JPH0442564Y2 JP H0442564 Y2 JPH0442564 Y2 JP H0442564Y2 JP 1985073700 U JP1985073700 U JP 1985073700U JP 7370085 U JP7370085 U JP 7370085U JP H0442564 Y2 JPH0442564 Y2 JP H0442564Y2
- Authority
- JP
- Japan
- Prior art keywords
- diaphragm
- ring
- actuator
- rod
- shell
- 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
- 230000002093 peripheral effect Effects 0.000 claims description 8
- 230000000694 effects Effects 0.000 description 3
- 230000002452 interceptive effect Effects 0.000 description 2
- 238000013016 damping Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Landscapes
- Actuator (AREA)
Description
【考案の詳細な説明】
イ 考案の目的
イ−１ 産業上の利用分野
本考案は、ダイヤフラム式アクチユエータの改
良に関する。[Detailed Description of the Invention] A. Purpose of the Invention A-1. Field of Industrial Application The present invention relates to improvement of a diaphragm actuator.
イ−２ 従来技術
従来、ダイヤフラム式アクチユエータにおい
て、ダイヤフラムの振動による損傷を防止するた
め、剛性ガイドをアクチユエータケースとロツド
の間に介在させてダイヤフラムの耐震性の向上を
提案したものが、例えば実公昭58〜7175号公報や
実公昭59〜19132号公報に開示されている。A-2 Prior Art Conventionally, in a diaphragm actuator, in order to prevent damage to the diaphragm due to vibration, it has been proposed to interpose a rigid guide between the actuator case and the rod to improve the earthquake resistance of the diaphragm. It is disclosed in Utility Model Publication No. 58-7175 and Utility Model Publication No. 59-19132.
イ−３ 本考案が解決しようとする問題点
前記従来のものは、ダイアフラム式アクチユエ
ータのロツドを回動運動するレバーに連結して、
アクチユエータを自動車等の振動の多い所に搭載
すると、剛性ガイド部がレバー作動時にロツドの
横運動の支点となり、ダイアフラム部がロツドと
直角な方向に大きく横運動するとともに、振動が
加わり、タイアフラムとシエルの間に振動方向と
直角方向の部位で摩擦が生じたり振動方向と同一
方向に生じるダイアフラムの屈曲量が大きくなつ
さたりして、ダイアフラムの損傷をきたし、ダイ
アフラム式アクチユエータの寿命を短くするとい
う問題点があつた。A-3 Problems to be solved by the present invention In the conventional actuator, the rod of the diaphragm actuator is connected to a lever that rotates.
When the actuator is installed in a place where there is a lot of vibration, such as in a car, the rigid guide section becomes the fulcrum for the lateral movement of the rod when the lever is actuated, causing the diaphragm section to make a large lateral movement in a direction perpendicular to the rod, and vibrations are added, causing damage to the tire flamm and shell. The problem is that friction occurs in a part perpendicular to the vibration direction during the vibration, and the amount of flexion of the diaphragm that occurs in the same direction as the vibration direction increases, causing damage to the diaphragm and shortening the life of the diaphragm actuator. The dot was hot.
本考案は、振動によるダイアフラムの損傷を防
止し、厳しい振動条件に耐え、寿命の長いダイア
フラム式アクチユエータを提供することを目的と
するものである。 The object of the present invention is to provide a diaphragm actuator that prevents damage to the diaphragm due to vibration, can withstand severe vibration conditions, and has a long life.
ロ 考案の構成
ロ−１ 問題点を解決するための手段
本考案は、前記問題点を解決するために、回転
運動するレバー１２を応動させるロツド６の基端
部６ａにダイヤフラム１がシエル７，８を介して
固定されているダイヤフラム式アクチユエータに
おいて、上記下面側のシエル８の外周縁を下方に
延長させ、該延長部の外周壁に環状のコ字型断面
となす保持部８ａを設け、該保持部８ａにリング
状弾性部材１０を嵌着し、その外周にアクチユエ
ータケースの内壁と接し摺動抵抗の少ない材料よ
りなる有端のリング状部材１１を嵌着し、該リン
グ状部材１１の断面形状を半円状に形成したこと
を特徴とするものである。B. Structure of the Invention B-1 Means for Solving the Problems In order to solve the above-mentioned problems, the present invention provides that the diaphragm 1 is attached to the shell 7 at the proximal end 6a of the rod 6 that responds to the rotating lever 12. In the diaphragm actuator fixed via a shell 8, the outer peripheral edge of the lower shell 8 is extended downward, and a holding part 8a having an annular U-shaped cross section is provided on the outer peripheral wall of the extended part. A ring-shaped elastic member 10 is fitted to the holding portion 8a, and a ring-shaped member 11 with an end made of a material that contacts the inner wall of the actuator case and has low sliding resistance is fitted to the outer periphery of the ring-shaped elastic member 10. It is characterized by having a semicircular cross-sectional shape.
ロ−２ 作用
前記のような構成であるため、ロツド６の軸方
向と直角な方向の振動がダイアフラム式アクチユ
エータに生じている条件下において、ダイアフラ
ム１の動きはレバー１２と係合しているロツド先
端部６ａを支点に振動方向に大きく振れようとす
るが、ダイヤフラム１はアクチユエータケースの
内壁と接する摺動抵抗の少ない材料によりなるリ
ング状部材１１を保持したシエル８によつてガイ
ドされしかもリング状部材１１は有端で間隔１１
ａを有しているので、ロツド６の軸方向の動きを
妨げることなく、振動に対してダイアフラムケー
スとシエル８が同レベルの振動をしてロツドの全
ストロークにわたり両者の相対的な振動を抑制さ
せることができ、ひいてはロツド６の左右方向の
振動を防止できるため、ダイアフラム１の屈曲は
ゆるやかとなり、ダイアフラム１、シエル７，８
との摩擦等もなくなり、ダイアフラム１の損傷を
防止できる。RO-2 Effect Because of the above-described configuration, under conditions where the diaphragm actuator is vibrating in a direction perpendicular to the axial direction of the rod 6, the movement of the diaphragm 1 is caused by the movement of the rod engaged with the lever 12. Although the diaphragm 1 tries to swing largely in the vibration direction using the tip 6a as a fulcrum, the diaphragm 1 is guided by the shell 8 holding the ring-shaped member 11 made of a material with low sliding resistance and in contact with the inner wall of the actuator case. The ring-shaped member 11 has ends and is spaced apart by 11.
a, the diaphragm case and shell 8 vibrate at the same level in response to vibration without interfering with the axial movement of the rod 6, suppressing relative vibration between the two over the entire stroke of the rod. As a result, the diaphragm 1 can be bent gently and the diaphragm 1, shells 7 and 8 can be
There is no friction between the diaphragm 1 and the diaphragm 1, and damage to the diaphragm 1 can be prevented.
ロ−３ 実施例
次に本考案を図面に示す実施例に基いて説明す
る。RO-3 Embodiment Next, the present invention will be explained based on an embodiment shown in the drawings.
第１図は本考案の実施例を示すダイアフラム式
アクチユエータの断面図で、感圧作動部材として
のダイアフラム１はその外周部１ａを圧力室（負
圧室）２の圧力室ケース３と大気室４の大気室ケ
ース５に挟圧され、圧力室２と大気室４をシール
している。 FIG. 1 is a cross-sectional view of a diaphragm type actuator showing an embodiment of the present invention, in which a diaphragm 1 as a pressure-sensitive actuating member has its outer circumference 1a connected to a pressure chamber case 3 of a pressure chamber (negative pressure chamber) 2 and an atmospheric chamber 4. The air chamber case 5 seals the pressure chamber 2 and the air chamber 4.
ダイアフラム１の中心部１ｂにはレバー１２を
応動させるためのロツド６のロツド基端部６ａが
シエル７，８を介して固定されている。 A rod base end 6a of a rod 6 for actuating a lever 12 is fixed to the center portion 1b of the diaphragm 1 via shells 7 and 8.
レバー１２は、ロツド先端部６ｂに連結されて
いる。ダイアフラム１の受圧面に当接したシエル
７と圧力室ケース３との間には、ロツド６を大気
室４側に常時付勢するスプリング９が介在させて
ある。大気室４側シエル８は、その外周縁を大気
室ケース５の内壁にそつて延長させ、その延長さ
せた外周壁に環状の保持部８ａを設けて、この保
持部８ａにリング状弾性部材１０と大気室ケース
５の内壁と接する摺動抵抗の少ない材料よりなる
断面形状が半円状のリング状部材１１を保持させ
ている。 The lever 12 is connected to the rod tip 6b. A spring 9 is interposed between the shell 7 which is in contact with the pressure receiving surface of the diaphragm 1 and the pressure chamber case 3, and which constantly biases the rod 6 toward the atmospheric chamber 4. The atmospheric chamber 4 side shell 8 has its outer peripheral edge extended along the inner wall of the atmospheric chamber case 5, and an annular holding portion 8a is provided on the extended outer peripheral wall, and a ring-shaped elastic member 10 is attached to the holding portion 8a. A ring-shaped member 11 having a semicircular cross-sectional shape and made of a material with low sliding resistance is held in contact with the inner wall of the atmospheric chamber case 5.
シエル８の外周縁を延長させる長さは、アクチ
ユエータの所定ストロークに至つてもリング状部
材１１（保持部８ａ）とダイアフラム１が接触し
ない長さにしてある。 The outer peripheral edge of the shell 8 is extended to such a length that the ring-shaped member 11 (holding portion 8a) and the diaphragm 1 do not come into contact even when the actuator reaches a predetermined stroke.
また、リング状部材１１と大気室ケース５内壁
のはめあい状態は振動抑制の目的からすればしま
りばめが最適であるので、大気室ケース５とリン
グ状部材１１の摺動抵抗が大きくても、ダイアフ
ラム式アクチユエータの要求特性が満足できる場
合は、大気室ケース５内壁とリング状部材１１の
はめあい状態をしまりばめとしてある。しかし、
摺動抵抗が大きくなるとロツド６の軸方向の動き
が妨げられるので、第３図に示すようにリング状
部材１１に間隔１１ａを１箇所適切な幅で設ける
ことにより、ケース５との摺動抵抗を減少させて
ある。なお、大気ケース５内壁とリング状部材１
１のはめあいは中間ばめであつてもよい。 Furthermore, since the fit between the ring-shaped member 11 and the inner wall of the atmospheric chamber case 5 is an interference fit from the perspective of vibration suppression, even if the sliding resistance between the atmospheric chamber case 5 and the ring-shaped member 11 is large, When the required characteristics of the diaphragm actuator are satisfied, the fit between the inner wall of the atmospheric chamber case 5 and the ring-shaped member 11 is set to be a tight fit. but,
If the sliding resistance becomes large, the movement of the rod 6 in the axial direction will be hindered, so by providing the ring-shaped member 11 with one space 11a of an appropriate width as shown in FIG. 3, the sliding resistance with the case 5 can be reduced. has been reduced. Note that the inner wall of the atmospheric case 5 and the ring-shaped member 1
The fit of No. 1 may be an intermediate fit.
尚、保持部８ａにリング状弾性部材１０を介し
て大気室ケース５の円筒面状内壁と接する摺動抵
抗の少ない材料よりなる断面形状が半円状のリン
グ状部材１０を保持させている。なお、大気室ケ
ース５内壁とリング状部材１１のはめあいは中間
ばめでもよく、この場合、はめあい状態にすきま
ができたとき、ダイアフラム１はそのすきまを振
幅とした振動を受けることになるが、リング状弾
性部材１０がその振動を減衰される機能を有し、
ダイアフラム１の振動方向の運動を抑制する機能
を損なうことがないようにしてある。 Note that the holding portion 8a holds a ring-shaped member 10 having a semicircular cross-sectional shape and made of a material with low sliding resistance and in contact with the cylindrical inner wall of the atmospheric chamber case 5 via a ring-shaped elastic member 10. Note that the fit between the inner wall of the atmospheric chamber case 5 and the ring-shaped member 11 may be an intermediate fit, and in this case, when a gap is created in the fitted state, the diaphragm 1 will be subjected to vibration with the amplitude of the gap. The ring-shaped elastic member 10 has a function of damping its vibrations,
This is done so that the function of suppressing the movement of the diaphragm 1 in the vibration direction is not impaired.
本考案の実施例は、負圧で作動するダイアフラ
ム式アクチユエータであるが正圧で作動するダイ
アフラム式アクチユエータにも適用できる。 Although the embodiment of the present invention is a diaphragm actuator that operates with negative pressure, it can also be applied to a diaphragm actuator that operates with positive pressure.
又、本考案の実施例では、リング状部材１１、
リング状弾性部材１０とこれらを保持するシエル
の保持部８ａが大気室４側に設けられているが、
圧力室２側に設けても同様な効果を得ることがで
きる。 Further, in the embodiment of the present invention, the ring-shaped member 11,
Although the ring-shaped elastic member 10 and the shell holding portion 8a that holds them are provided on the atmospheric chamber 4 side,
A similar effect can be obtained even if it is provided on the pressure chamber 2 side.
ハ 考案の効果
本考案によれば、シエルの延長させた外周縁に
設けられた環状の保持部に、アクチュエータケー
スの円筒面状内壁に接する摺動抵抗の少ない材料
によりなるリング状部材を保持させたことによ
り、ダイアフラムは上記シエルによつてガイドさ
れることとなり、ロツドの軸方向の動きを妨げる
ことなくロツドの全ストロークにわたり、その軸
方向に対して直角方向の振動を抑制することがで
きる。C. Effect of the invention According to the invention, the ring-shaped member made of a material with low sliding resistance and in contact with the cylindrical inner wall of the actuator case is held in the annular holding part provided on the extended outer peripheral edge of the shell. As a result, the diaphragm is guided by the shell, and vibrations perpendicular to the axial direction of the rod can be suppressed over the entire stroke of the rod without interfering with the axial movement of the rod.
特にこの考案においては、リング状部材１１が
半円状断面形状であることにより、搭載ズレによ
る傾きによつてクリアランスが少なくなり作動抵
抗が増加することを防ぐことができる上に弾性部
材１０の介在によりダイアフラムの半径方向にか
かる振動を減衰することができ、ダイアフラムの
振動磨耗を軽減できて耐久性を向上できる。 In particular, in this invention, since the ring-shaped member 11 has a semicircular cross-sectional shape, it is possible to prevent the clearance from decreasing and the operating resistance to increase due to the inclination due to mounting misalignment. This makes it possible to attenuate vibrations applied to the diaphragm in the radial direction, thereby reducing vibration wear on the diaphragm and improving durability.
第１図は本考案の実施例を示すダイアフラム式
アクチユエータの断面図、第２図は第１図におけ
る要部拡大断面図、第３図は本考案の実施例に用
いるリング状部材の斜視図である。
１……ダイアフラム、３……圧力室（負圧室）
ケース、５……大気室ケース、６……ロツド、６
ａ……ロツド基端部、７，８……シエル、８ａ…
…保持部、１０……リング状弾性部材、１１……
リング状部材、１１ａ……間隔、１２……レバ
ー。
Fig. 1 is a sectional view of a diaphragm actuator showing an embodiment of the present invention, Fig. 2 is an enlarged sectional view of the main part in Fig. 1, and Fig. 3 is a perspective view of a ring-shaped member used in an embodiment of the invention. be. 1...Diaphragm, 3...Pressure chamber (negative pressure chamber)
Case, 5... Atmospheric chamber case, 6... Rod, 6
a... Rod base end, 7, 8... Shell, 8a...
...Holding part, 10...Ring-shaped elastic member, 11...
Ring-shaped member, 11a...interval, 12...lever.
Claims (1)
の基端部６ａにダイヤフラム１がシエル７，８を
介して固定されているダイヤフラム式アクチユエ
ータにおいて、上記下面側のシエル８の外周縁を
下方に延長させ、該延長部の外周壁に環状のコ字
型断面をなす保持部８ａを設け、該保持部８ａに
リング状弾性部材１０を嵌着し、その外周にアク
チユエータケースの内壁と接し摺動抵抗の少ない
材料よりなる有端のリング状部材１１を嵌着し、
該リング状部材１１の断面形状を半円状に形成し
たことを特徴とするダイヤフラム式アクチユエー
タ。 A rod 6 that responds to a rotating lever 12
In the diaphragm actuator in which the diaphragm 1 is fixed to the base end 6a of the shell 8 via the shells 7 and 8, the outer peripheral edge of the lower shell 8 is extended downward, and an annular coil is formed on the outer peripheral wall of the extended part. A holding part 8a having a letter-shaped cross section is provided, a ring-shaped elastic member 10 is fitted into the holding part 8a, and a ring-shaped elastic member 10 with ends is provided on the outer periphery of the holding part 8a and is made of a material with low sliding resistance and is in contact with the inner wall of the actuator case. Fitting the member 11,
A diaphragm actuator characterized in that the ring-shaped member 11 has a semicircular cross-section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985073700U JPH0442564Y2 (en) | 1985-05-18 | 1985-05-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985073700U JPH0442564Y2 (en) | 1985-05-18 | 1985-05-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61190003U JPS61190003U (en) | 1986-11-27 |
| JPH0442564Y2 true JPH0442564Y2 (en) | 1992-10-08 |
Family
ID=30613307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985073700U Expired JPH0442564Y2 (en) | 1985-05-18 | 1985-05-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0442564Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6094829A (en) * | 1983-10-28 | 1985-05-28 | Nippon Denso Co Ltd | Pneumatic cylinder of bellows diaphragm type |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54156231U (en) * | 1978-04-22 | 1979-10-30 | ||
| JPS5578844U (en) * | 1978-11-24 | 1980-05-30 |
-
1985
- 1985-05-18 JP JP1985073700U patent/JPH0442564Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6094829A (en) * | 1983-10-28 | 1985-05-28 | Nippon Denso Co Ltd | Pneumatic cylinder of bellows diaphragm type |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61190003U (en) | 1986-11-27 |
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