JPH0515617Y2 - - Google Patents

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Publication number
JPH0515617Y2
JPH0515617Y2 JP1987009652U JP965287U JPH0515617Y2 JP H0515617 Y2 JPH0515617 Y2 JP H0515617Y2 JP 1987009652 U JP1987009652 U JP 1987009652U JP 965287 U JP965287 U JP 965287U JP H0515617 Y2 JPH0515617 Y2 JP H0515617Y2
Authority
JP
Japan
Prior art keywords
bearing
elastic body
retainer
rod
casing
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
Application number
JP1987009652U
Other languages
Japanese (ja)
Other versions
JPS63118423U (en
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1987009652U priority Critical patent/JPH0515617Y2/ja
Publication of JPS63118423U publication Critical patent/JPS63118423U/ja
Application granted granted Critical
Publication of JPH0515617Y2 publication Critical patent/JPH0515617Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Support Of The Bearing (AREA)

Description

【考案の詳細な説明】 〔産業上の利用分野〕 この考案はロツドを支持するための軸受構造に
関し、特に、ケーシングに対して出没および揺動
するアクチユエータ等のロツドを支持する軸受構
造に関するものである。
[Detailed description of the invention] [Field of industrial application] This invention relates to a bearing structure for supporting a rod, and in particular to a bearing structure for supporting a rod such as an actuator that protrudes and retracts from and swings relative to a casing. be.

〔従来技術およびその問題点〕[Prior art and its problems]

従来、圧力流体によつて移動するアクチユエー
タ等のロツドにあつては、第3図に示すように支
持されていて、すなわち、アクチユエータ等のケ
ーシング13の孔14から突出しているロツド1
0は、その外側に軸受11が設けられ、この軸受
11の外周面にはOリング12が位置し、それら
がアクチユエータ等のケーシング13の外側にお
いてリテーナ15で支持されている。
Conventionally, in the case of a rod such as an actuator that is moved by pressure fluid, the rod 1 is supported as shown in FIG.
0 is provided with a bearing 11 on the outside thereof, an O-ring 12 is located on the outer peripheral surface of this bearing 11, and these are supported by a retainer 15 on the outside of a casing 13 of an actuator or the like.

そして、前記ロツド10が前記ケーシング13
から出没あるいは揺動する際に生じた振れを前記
Oリング12によつて吸収するようになつている
が、上記のように構成した場合には、前記Oリン
グ12が軸受11およびリテーナ15にこすられ
て摩耗するので、軸受11とリテーナ15との間
に間隙が発生し、このためにロツド10の振れを
吸収する機能が低下してロツド10の振れが大き
くなるためにアクチユエータの耐久性の低下につ
ながるという問題点を有していた。
Then, the rod 10 is connected to the casing 13.
The O-ring 12 absorbs the vibration that occurs when the O-ring 12 moves in and out of the bearing 11 and the retainer 15. As a result, a gap is created between the bearing 11 and the retainer 15, which reduces the ability to absorb the vibrations of the rods 10 and increases the vibrations of the rods 10, reducing the durability of the actuator. The problem was that it led to

この考案は前記のような従来のもののもつ問題
点を解決したもので、ロツドを支持している軸受
に設けられた振れの吸収用の弾性体が摩耗した場
合であつても、軸受とリテーナとの間に間隙が生
じる恐れをなくすることにより、アクチユエータ
の耐久性を向上させることのできる軸受構造を提
供することを目的とする。
This idea solves the problems of the conventional ones as mentioned above, and even if the elastic body for absorbing runout installed in the bearing that supports the rod wears out, the bearing and retainer can be easily connected. It is an object of the present invention to provide a bearing structure that can improve the durability of an actuator by eliminating the possibility of a gap occurring between the actuators.

〔問題点を解決するための手段〕[Means for solving problems]

上記の問題点を解決するためにこの考案は、ア
クチユエータ等のケーシングに対して出没および
揺動するロツドに軸受を設け、この軸受の外側
に、支持部と、この支持部に対して、付勢部材に
よつて外側方向に付勢されるとともに、外周面が
湾曲面となつている当接部とからなる弾性体を設
け、この弾性体の外側に、前記ロツドが貫通した
状態で、かつ、前記弾性体の当接部の湾曲面とな
つている外周面が摺動可能な状態で内面に押圧す
るリテーナを前記ケーシングに取付けた手段を採
用したものである。
In order to solve the above-mentioned problems, this invention provides a bearing on the rod that moves in and out of the casing of the actuator and swings, and on the outside of this bearing, a support part and a biasing force are provided on the outside of the bearing. An elastic body is provided that is biased outwardly by a member and has an abutment portion whose outer peripheral surface is a curved surface, and the rod passes through the outside of the elastic body, and A retainer is attached to the casing so that the outer peripheral surface, which is a curved surface of the abutting portion of the elastic body, is slidably pressed against the inner surface.

〔作用〕[Effect]

この考案は上記の手段を採用したことにより、
ロツドが出没および揺動した際には、リテーナの
内周面と、前記弾性体の当接部とが摺動して当接
部が摩耗するが、当接部は支持部に対して付勢部
材で外方に付勢されているので、当接部が摩耗し
たとしても常にリテーナの内周面に当接されるこ
ととなり、これによつて、ロツドのがたつきが防
止されることとなる。
By adopting the above-mentioned means, this idea
When the rod moves in and out and swings, the inner peripheral surface of the retainer and the abutting part of the elastic body slide and the abutting part wears out, but the abutting part is biased against the support part. Since it is urged outward by a member, even if the contact part is worn out, it will always come into contact with the inner peripheral surface of the retainer, thereby preventing the rod from rattling. Become.

〔実施例〕〔Example〕

以下、図面に示すこの考案の実施例について説
明する。
Embodiments of this invention shown in the drawings will be described below.

第1図にはこの考案による軸受構造が示されて
いて、アクチユエータのロツドに用いた場合につ
いて説明すると、ロツド1の先端がケーシング3
の孔4を介して外方に突出し、この突出した部分
に軸受2が設けられるとともに、この軸受2の外
周面に環状の溝5が形成されて、この溝5の内部
に、環状をなす弾性体6が被嵌し、この弾性体6
の外側に、前記ケーシング3の外側に取付けられ
たリテーナ7が被嵌して、前記弾性体6の外周面
がリテーナ7の内周面に当接している。
Fig. 1 shows a bearing structure based on this invention, and to explain the case where it is used for an actuator rod, the tip of the rod 1 is connected to the casing 3.
A bearing 2 is provided in this protruding portion, and an annular groove 5 is formed on the outer peripheral surface of the bearing 2. body 6 is fitted, and this elastic body 6
A retainer 7 attached to the outside of the casing 3 is fitted onto the outside of the casing 3, and the outer circumferential surface of the elastic body 6 is in contact with the inner circumferential surface of the retainer 7.

この場合、前記弾性体6は、その詳細が第2図
に示すように構成されており、すなわち、第2図
において、前記弾性体6は、前記軸受2の外周面
に設けた環状の溝5の内部に位置している支持部
である嵌合部6aと、前記リテーナ7の内周面に
当接する当接部6bとから構成され、前記嵌合部
6aと当接部6bとはそれらの下部において一体
となつており、また、それらの上部間には断面V
字状をなす環状の薄板ばね8が介在し、したがつ
て、前記当接部6bは常に前記薄板ばね8によつ
て外側に付勢されている。
In this case, the elastic body 6 is constructed as shown in FIG. 2 in detail. In FIG. It is composed of a fitting part 6a, which is a support part located inside the retainer 7, and a contact part 6b, which comes into contact with the inner peripheral surface of the retainer 7, and the fitting part 6a and the contact part 6b are They are integrated at the lower part, and there is a cross section V between the upper parts.
An annular thin plate spring 8 having a letter-like shape is interposed, so that the abutting portion 6b is always urged outward by the thin plate spring 8.

そして、上記のように構成されている軸受構造
にあつては、アクチユエータの作動時に、ロツド
1はケーシング3の孔4に対して出没するととも
に揺動し、このロツド1の作動時に、その外側に
設けられた軸受2に被嵌している弾性体6も一体
に移動するので、弾性体6の当接部6bの外周面
はケーシング3に固定されたリテーナ7の内周面
と摺動することとなる。しかし、当接部6bの外
周面は湾曲面となつているため、リテーナ7との
接触面積が少なくてすみ、追従性が良いととも
に、摩耗も少なくなる。また、この摺動時に前記
弾性体6の当接部6bが摩耗する場合でも、従来
のOリング12のように摩耗によつてOリング1
2とリテーナ15との間に間隙が発生し、この間
隙によつてロツド10にガタが発生することがな
く、この考案によるものの場合には、弾性体6の
当接部6bが摩耗した際には、この当接部6bは
薄板ばね8によつて常に外方に付勢されているの
で、当接部6bの外側が摩耗した場合であつても
当接部6bの外側は常にリテーナ7の内周面に当
接し、これによつて弾性体6とリテーナ7との間
に間隙が生じる恐れはなく、したがつて、常に軸
受2の機能を発揮させることができるものであ
る。
In the bearing structure configured as described above, when the actuator is operated, the rod 1 moves in and out of the hole 4 of the casing 3 and swings. Since the elastic body 6 fitted into the provided bearing 2 also moves together, the outer circumferential surface of the contact portion 6b of the elastic body 6 slides on the inner circumferential surface of the retainer 7 fixed to the casing 3. becomes. However, since the outer circumferential surface of the contact portion 6b is a curved surface, the contact area with the retainer 7 is small, resulting in good followability and less wear. Further, even if the contact portion 6b of the elastic body 6 is worn out during this sliding, the O-ring 1
A gap is generated between the rod 10 and the retainer 15, and this gap prevents the rod 10 from rattling. Since this contact portion 6b is always urged outward by the thin plate spring 8, even if the outside of the contact portion 6b is worn out, the outside of the contact portion 6b is always pressed against the retainer 7. The bearing 2 is brought into contact with the inner circumferential surface, and as a result, there is no possibility that a gap will be created between the elastic body 6 and the retainer 7, so that the function of the bearing 2 can always be exhibited.

なお、前記実施例にあつては、弾性体6を嵌合
部6aと当接部6bとで構成し、前記嵌合部と当
接部との下部を一体にするとともに、両部6a,
6bの上部間に断面V字状の薄板ばね8を配設し
た場合について説明したが、要は、軸受の外側に
取付ける支持部と、この支持部に対して外側方向
に付勢部材で付勢されている当接部とが存在すれ
ば良く、実施例のものに限定するものではないと
いうことは勿論である。
In the above embodiment, the elastic body 6 is composed of a fitting part 6a and a contact part 6b, and the lower parts of the fitting part and the contact part are integrated, and both parts 6a,
The case where the thin plate spring 8 with a V-shaped cross section is arranged between the upper parts of the bearings 6b has been described, but the point is that the thin plate spring 8 has a V-shaped cross section and is attached to the outside of the bearing, and the support part is biased outwardly by a biasing member. It goes without saying that the present invention is not limited to the one shown in the embodiment, as long as there is a contact portion shown in FIG.

〔考案の効果〕[Effect of idea]

この考案は、アクチユエータ等のケーシングに
対して出没および揺動するロツドに軸受を設け、
この軸受の外側に、支持部と、この支持部に対し
て、付勢部材によつて外側方向に付勢されるとと
もに、外周面が湾曲面となつている当接部とから
なる弾性体を設け、この弾性体の外側に、前記ロ
ツドが貫通した状態で、かつ、前記弾性体の当接
部の湾曲面となつている外周面が摺動可能な状態
で内面に押圧するリテーナを前記ケーシングに取
付けたことにより、アクチユエータの作動による
ロツドの移動時に、弾性体とリテーナとが摺動し
て弾性体が摩耗した場合であつても、弾性体を構
成する当接部が付勢部材によつて常にリテーナの
内周面に当接していることにより、弾性体、すな
わち、軸受とリテーナとの間にガタが発生する恐
れがなく、これによつて、アクチユエータの耐久
性を著しく向上させることができ、さらに、当接
部の外周面が湾曲面となつているため、リテーナ
との接触面積が少なくなつて、追従性が向上する
とともに、摩耗も少なくなるなどのすぐれた効果
を有するものである。
This idea provides a bearing on the rod that moves in and out of the casing of the actuator and swings.
On the outside of this bearing, there is provided an elastic body consisting of a support part and an abutment part which is biased outwardly against the support part by a biasing member and whose outer peripheral surface is a curved surface. A retainer is provided on the outside of the elastic body, and the retainer is pressed against the inner surface in a state in which the rod penetrates and the outer peripheral surface, which is a curved surface of the abutting portion of the elastic body, is slidable. Even if the elastic body and retainer slide and the elastic body wears out when the rod moves due to actuator operation, the abutment part that makes up the elastic body will not be affected by the biasing member. Since the actuator is always in contact with the inner circumferential surface of the retainer, there is no risk of looseness occurring between the elastic body, that is, the bearing, and the retainer, thereby significantly improving the durability of the actuator. Moreover, since the outer circumferential surface of the abutting part is a curved surface, the contact area with the retainer is reduced, which improves followability and has excellent effects such as less wear. .

【図面の簡単な説明】[Brief explanation of drawings]

第1図はこの考案による軸受構造を示す概略
図、第2図は要部を示す概略図、第3図は従来の
ものを示す概略図である。 1,10……ロツド、2,11……軸受、3,
13……ケーシング、4,14……孔、5……
溝、6……弾性体、6a……支持部、6b……当
接部、7,15……リテーナ、8……薄板ばね、
12……Oリング。
FIG. 1 is a schematic diagram showing a bearing structure according to this invention, FIG. 2 is a schematic diagram showing the main parts, and FIG. 3 is a schematic diagram showing a conventional bearing structure. 1,10...Rod, 2,11...Bearing, 3,
13... Casing, 4, 14... Hole, 5...
Groove, 6... Elastic body, 6a... Support part, 6b... Contact part, 7, 15... Retainer, 8... Thin plate spring,
12...O-ring.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model claims] アクチユエータ等のケーシング3に対して出没
および揺動するロツド1に軸受2を設け、この軸
受2の外側に、支持部6aと、この支持部6aに
対して、付勢部材8によつて外側方向に付勢され
るとともに、外周面が湾曲面となつている当接部
6bとからなる弾性体6を設け、該弾性体6の外
側に、前記ロツド1が貫通した状態で、かつ、前
記弾性体6の当接部6bの湾曲面となつている外
周面が摺動可能な状態で内面に押圧するリテーナ
7を前記ケーシング3に取付けたことを特徴とす
る軸受構造。
A bearing 2 is provided on a rod 1 that moves in and out of and swings with respect to a casing 3 of an actuator, etc., and a support portion 6a is provided on the outside of the bearing 2. An elastic body 6 consisting of a contact portion 6b whose outer circumferential surface is curved is provided, and the rod 1 is inserted through the outside of the elastic body 6, and the elastic body 6 is A bearing structure characterized in that a retainer 7 is attached to the casing 3 so that the outer circumferential surface, which is a curved surface of the contact portion 6b of the body 6, presses against the inner surface in a slidable state.
JP1987009652U 1987-01-26 1987-01-26 Expired - Lifetime JPH0515617Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1987009652U JPH0515617Y2 (en) 1987-01-26 1987-01-26

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987009652U JPH0515617Y2 (en) 1987-01-26 1987-01-26

Publications (2)

Publication Number Publication Date
JPS63118423U JPS63118423U (en) 1988-07-30
JPH0515617Y2 true JPH0515617Y2 (en) 1993-04-23

Family

ID=30795167

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987009652U Expired - Lifetime JPH0515617Y2 (en) 1987-01-26 1987-01-26

Country Status (1)

Country Link
JP (1) JPH0515617Y2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2526336Y2 (en) * 1991-05-20 1997-02-19 三菱重工業株式会社 Bearing support mechanism
JP2021131135A (en) * 2020-02-20 2021-09-09 パナソニックIpマネジメント株式会社 Bearing structure

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5635914B2 (en) * 1976-08-10 1981-08-20

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4915355U (en) * 1972-05-17 1974-02-08
JPS5635914U (en) * 1979-08-29 1981-04-07
JPS58169219U (en) * 1982-05-07 1983-11-11 エヌオーケー株式会社 bearing

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5635914B2 (en) * 1976-08-10 1981-08-20

Also Published As

Publication number Publication date
JPS63118423U (en) 1988-07-30

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