JP2784881B2 - Hydraulic fitting - Google Patents
Hydraulic fittingInfo
- Publication number
- JP2784881B2 JP2784881B2 JP6063223A JP6322394A JP2784881B2 JP 2784881 B2 JP2784881 B2 JP 2784881B2 JP 6063223 A JP6063223 A JP 6063223A JP 6322394 A JP6322394 A JP 6322394A JP 2784881 B2 JP2784881 B2 JP 2784881B2
- Authority
- JP
- Japan
- Prior art keywords
- wall
- liquid chamber
- cylinder
- liquid
- bulging wall
- 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
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- Hydraulic Turbines (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、液圧により円筒の内周
壁あるいは円柱の外周壁を膨出させ、他の部材に圧接さ
せて機械的結合を達成するようにした液圧継手に関する
ものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hydraulic joint in which the inner peripheral wall of a cylinder or the outer peripheral wall of a cylinder is expanded by hydraulic pressure and is brought into pressure contact with another member to achieve mechanical coupling. is there.
【０００２】[0002]
【従来の技術】この種の継手の一例を図５を参照して説
明する。１は継手、２は、継手１の中に挿入され、例え
ば原動機が連結された駆動軸、３は駆動軸２の中に一端
が挿入された例えば従動軸であり、駆動軸２と従動軸３
とを継手１の締め付けにより結合しようとするものであ
る。継手１の内周と駆動軸２の外周との間にはすきまδ
１、駆動軸２の内周と従動軸３の外周との間にはすきま
δ２がある。2. Description of the Related Art An example of this type of joint will be described with reference to FIG. 1 is a joint, 2 is a drive shaft inserted into the joint 1 and connected to, for example, a prime mover, and 3 is a driven shaft having one end inserted into the drive shaft 2, for example, a drive shaft 2 and a driven shaft 3
Are to be joined by tightening the joint 1. There is a clearance δ between the inner circumference of the joint 1 and the outer circumference of the drive shaft 2.
1. There is a clearance δ 2 between the inner circumference of the drive shaft 2 and the outer circumference of the driven shaft 3.
【０００３】継手１は、円筒の内周面から一定の肉厚ｔ
の膨出壁４を介して、軸方向に任意の幅を有する環状の
液室５が設けられており、その液室５の軸方向両端部に
は円形の断面形状を有する拡大部６が設けられている。
７は液室５に通じる液注入口である。The joint 1 has a constant thickness t from the inner peripheral surface of the cylinder.
An annular liquid chamber 5 having an arbitrary width in the axial direction is provided via the bulging wall 4 of the liquid crystal panel, and enlarged portions 6 having a circular cross-sectional shape are provided at both ends in the axial direction of the liquid chamber 5. Have been.
Reference numeral 7 denotes a liquid inlet which communicates with the liquid chamber 5.
【０００４】いま、図５において、液注入口７から液
（油）を圧入すると、液室５内の全壁にその液圧がかか
り、膨出壁４が内部から押されることになる。その結
果、膨出壁４が破線で示したように膨出して、駆動軸２
の外周面を押し、駆動軸２が歪んで従動軸３に圧接す
る。このようにして、駆動軸２と従動軸３は固く結合さ
れる。In FIG. 5, when a liquid (oil) is press-fitted from the liquid inlet 7, the liquid pressure is applied to all the walls in the liquid chamber 5, and the bulging wall 4 is pushed from the inside. As a result, the bulging wall 4 bulges as shown by the broken line, and the drive shaft 2
, The drive shaft 2 is distorted and pressed against the driven shaft 3. In this way, the drive shaft 2 and the driven shaft 3 are firmly connected.
【０００５】なお、例えば従動軸側に無理な負荷がかか
り、そのため機械が破壊されるのを防止するために、駆
動軸、従動軸間に生ずるスリップ回転により液室に通じ
る安全装置が破壊されて液が流出し、継手の締め付けが
解放されるようにした安全装置付き継手も知られてい
る。また、図５の例では、内周面が膨出するものについ
て説明したが、外周面が膨出するものもある。Incidentally, for example, in order to prevent the driven shaft from being subjected to an excessive load and the machine from being broken, a safety device communicating with the liquid chamber is broken by slip rotation generated between the drive shaft and the driven shaft. Joints with safety devices are also known in which the liquid escapes and the joint is released from tightening. Further, in the example of FIG. 5, the case where the inner peripheral surface swells has been described, but there are cases where the outer peripheral surface swells.
【０００６】[0006]
【発明が解決しようとする課題】ところで、液室５に液
圧をかけ、膨出壁４を膨出させたときの状態を図６にお
いて考察すると、膨出壁４の軸方向両端部のＡ，Ｂ，Ｃ
の部位で非常に高い引っ張り応力や圧縮応力が発生す
る。従って、膨出壁４を繰り返し膨出変形させると、従
来のものでは１０３回前後で疲労破壊する。なお、液室
５の形成は、継手１本体側部材及び膨出壁４側部材にそ
れぞれ液室５や拡大部６となる凹部を形成した後、両部
材を溶接により結合して作る。By the way, when a state in which the swelling wall 4 is swelled by applying a liquid pressure to the liquid chamber 5 is considered in FIG. 6, A at both ends in the axial direction of the swelling wall 4 is considered. , B, C
Very high tensile and compressive stresses are generated at the site. Therefore, when the bulge repeatedly deformed bulging walls 4, than the conventional fatigue fracture before and after 10 three times. The liquid chamber 5 is formed by forming the liquid chamber 5 and the concave portion serving as the enlarged portion 6 in the member on the side of the joint 1 and the member on the side of the bulging wall 4 respectively, and then joining the two members by welding.
【０００７】従来の、トルクリミッタとして使用される
安全装置付き継手の場合は、加圧繰り返しが有限回（１
０３回前後）で十分その仕様を満足するものであった。
従って、それ以上の強度は必要なかった。しかしなが
ら、固定用の継手としては、１０４〜１０５回程度の加
圧繰り返しに耐える必要がある。[0007] In the case of a conventional joint with a safety device used as a torque limiter, pressurization is repeated a finite number of times (1.
(Approximately 0.3 times) sufficiently satisfied the specification.
Therefore, no further strength was required. However, it is necessary for the fixing joint to withstand repeated pressurization of about 10 4 to 10 5 times.
【０００８】本発明は、上記従来技術の問題点を解決し
ようとするもので、１０４〜１０５回の加圧繰り返しに
十分耐え得る液圧継手を提供することを目的とする。An object of the present invention is to solve the above-mentioned problems of the prior art, and an object of the present invention is to provide a hydraulic joint capable of sufficiently withstanding 10 4 to 10 5 times of pressurization.
【０００９】[0009]
【課題を解決するための手段】上記目的を達成するため
の本発明の液圧継手は、まず、円筒の内周面あるいは円
柱の外周面から一定の肉厚の膨出壁を介して、軸方向に
任意の幅を有する環状の液室が設けられ、前記液室に通
じる液注入口から圧入された液の圧力により膨出壁を膨
出させて円筒内に挿入され若しくは円柱に挿嵌された他
の部材に圧接させる液圧継手において、次のような特徴
を有するものである。In order to achieve the above object, a hydraulic joint according to the present invention first comprises a shaft extending from an inner peripheral surface of a cylinder or an outer peripheral surface of a cylinder through a bulged wall having a constant thickness. An annular liquid chamber having an arbitrary width in the direction is provided, and the bulging wall is bulged by the pressure of the liquid press-fitted from the liquid inlet communicating with the liquid chamber, and is inserted into the cylinder or inserted into the cylinder. The hydraulic joint to be pressed against another member has the following features.
【００１０】（１）一定肉厚ｔの膨出壁部分の両端部
と、液室の軸方向両端部でかつ膨出壁表面の延長面から
ｔ０（＞ｔ）の距離に設けられた円形の断面形状を有す
る拡大部との間に傾斜部を設けた構成とするものであ
る。(1) A circular shape provided at both ends of the bulging wall portion having a constant thickness t and both ends in the axial direction of the liquid chamber and at a distance t 0 (> t) from the extended surface of the bulging wall surface. And an enlarged portion having the cross-sectional shape described above.
【００１１】（２）また、液室の膨出壁部分の内径を、
膨出壁部分の両側における継手本体部分の内径より予め
小さくしたものに、前記膨出壁部分の内径より大きくか
つ前記継手本体部分の内径より小さい外径を有する円筒
部材を焼ばめにより圧入し、前記膨出壁を後退させて初
期圧縮応力を与えてなる構成とするものである。(2) The inner diameter of the bulging wall portion of the liquid chamber is
A cylindrical member having an outer diameter larger than the inner diameter of the bulging wall portion and smaller than the inner diameter of the joint body portion is press-fitted into a member which has been made smaller in advance than the inner diameter of the joint body portion on both sides of the bulging wall portion. The bulging wall is retracted to give an initial compressive stress.
【００１２】（３）さらに、液室の膨出壁部分の外径
を、膨出壁部分の両側における継手本体部分の外径より
予め大きくしたものに、前記膨出壁部分の外径より小さ
くかつ前記継手本体部分の外径より大きい内径を有する
円筒部材を焼ばめにより圧嵌し、前記膨出壁を後退させ
て初期圧縮応力を与えてなる構成とするものである。(3) Further, the outer diameter of the bulging wall portion of the liquid chamber is made larger in advance than the outer diameter of the joint body portion on both sides of the bulging wall portion, and is smaller than the outer diameter of the bulging wall portion. In addition, a cylindrical member having an inner diameter larger than the outer diameter of the joint main body is press-fitted by shrink fitting, and the bulging wall is retracted to give an initial compressive stress.
【００１３】[0013]
【作用】（１）の構成によれば、応力の発生する箇所で
ある液室両端部付近の肉厚を厚くし、機械的強度の向上
となるので、疲労寿命が延びる。According to the configuration of (1), the thickness near the both ends of the liquid chamber where stress is generated is increased, and the mechanical strength is improved, so that the fatigue life is extended.
【００１４】また、（２），（３）の構成を採用するこ
とは、後で詳述するように、従来の完全片振りから部分
両振り、あるいは完全両振りとすることになり、疲労寿
命が延びることになる。Further, adopting the configurations (2) and (3), as will be described later in detail, changes the conventional complete swing to a partial swing or a complete swing, and the fatigue life Will be extended.
【００１５】[0015]
【実施例】以下、図面を参照して実施例を詳細に説明す
る。なお、従来例と同一名称のものには同一符号を付
す。図１は、本発明の一実施例を示したもので、１は継
手、４は一定の肉厚ｔを有する膨出壁、５は液室、６は
液室５の軸方向両端部に設けた円形の断面形状を有する
拡大部である。一定肉厚ｔの膨出壁４の部分の両端部
と、液室５の軸方向両端部でかつ膨出壁表面の延長面か
らｔ０（＞ｔ）の距離に設けられた円形の断面形状を有
する拡大部６との間に傾斜部１１を設ける。なおこの場
合、液室５が広くなるが、破線で示したように、傾斜部
１１を設けた両端部を除いて狭く構成してもよい。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments will be described below in detail with reference to the drawings. It is to be noted that the same reference numerals are given to those having the same names as the conventional example. FIG. 1 shows an embodiment of the present invention, wherein 1 is a joint, 4 is a bulging wall having a constant thickness t, 5 is a liquid chamber, and 6 is provided at both axial ends of the liquid chamber 5. It is an enlarged portion having a circular cross section. A circular cross-sectional shape provided at both ends of the bulging wall 4 having a constant thickness t and at both ends in the axial direction of the liquid chamber 5 and at a distance t 0 (> t) from an extended surface of the bulging wall surface. The inclined part 11 is provided between the enlarged part 6 and the enlarged part 6. In this case, although the liquid chamber 5 is widened, as shown by a broken line, the liquid chamber 5 may be configured to be narrow except at both ends where the inclined portion 11 is provided.
【００１６】このように構成された本実施例では、従来
のものに比較して、応力の発生する箇所である液室両端
部付近の肉厚がｔ０と厚くなるので、加庄力によって生
じる曲げモーメントＭによる応力が低くなり、疲労強度
を向上することができる。[0016] In this embodiment constructed as above, as compared with the conventional, since the thickness of the vicinity of the liquid chamber both ends a portion for generating the stress is increased to t 0, caused by the pressurized Zhuang force The stress due to the bending moment M is reduced, and the fatigue strength can be improved.
【００１７】従来構成のものに、繰り返し液圧を作用さ
せたときは、膨出壁の変形により図２（ａ）に示したよ
うな完全片振り応力が発生する。そこで、膨出壁に、図
２（ｂ）に示したような初期圧縮応力σＲを予め与えて
おけば、応力振幅が従来のものと同じ２σａであって
も、部分両振りとし、平均応力σｍを大幅に低減するこ
とができる。あるいは、完全両振りとして、平均応力σ
ｍを０にすることも可能である。When a hydraulic pressure is repeatedly applied to the conventional structure, a complete pulsating stress as shown in FIG. 2A is generated due to deformation of the bulging wall. Therefore, if an initial compressive stress σ R as shown in FIG. 2 (b) is given to the bulging wall in advance, even if the stress amplitude is 2σ a which is the same as the conventional one, partial swing is performed, and the average is obtained. Stress σ m can be significantly reduced. Or, as a complete swing, the average stress σ
It is also possible to set m to 0.
【００１８】図３及び図４は、本発明の他の実施例を示
したもので、予め初期圧縮応力を与えて少なくとも部分
両振りを行うようにしたものである。まず、初期圧縮応
力を与えるには、図３に示したように、液室５の膨出壁
４部分の内径を、膨出壁部分の両側における継手１本体
部分の内径より予め小さくして液室５にすきまΔを設け
たものを用意する。すきまΔは焼ばめ代を限度とする。FIGS. 3 and 4 show another embodiment of the present invention, in which an initial compressive stress is applied in advance to at least partially swing. First, in order to apply an initial compressive stress, as shown in FIG. 3, the inner diameter of the bulging wall 4 portion of the liquid chamber 5 is made smaller in advance than the inner diameter of the joint 1 body on both sides of the bulging wall portion. A chamber 5 having a clearance Δ is prepared. The clearance Δ is limited to the shrink fit.
【００１９】次に、図４に示したように、膨出壁４部分
の内径より大きくかつ前記継手１本体部分の内径より小
さい外径を有する円筒部材、ここでは駆動軸２を焼ばめ
により圧入し、継手１本体部分より径方向に突出した膨
出壁４部分を後退させる。これにより、膨出壁４は常に
焼ばめ力Ｆで押圧されており、図６で応力Ａ，Ｂ，Ｃが
発生する箇所である液室両端部付近には初期圧縮応力が
与えられることになる。Next, as shown in FIG. 4, a cylindrical member having an outer diameter larger than the inner diameter of the bulging wall 4 and smaller than the inner diameter of the joint 1 main body, here the drive shaft 2 is shrink-fitted. Then, the bulging wall 4 portion that protrudes radially from the joint 1 main body portion is retracted. As a result, the bulging wall 4 is constantly pressed by the shrink-fitting force F, and an initial compressive stress is applied to the vicinity of both ends of the liquid chamber where stresses A, B, and C are generated in FIG. Become.
【００２０】このように構成された本実施例において、
液注入口７から液（油）を圧入すると膨出壁４と共に焼
ばめした駆動軸２が押され、焼ばめ力Ｆに抗して膨出す
る。その結果、駆動軸２の内周が従動軸３に圧接して、
軸結合が達成される。In this embodiment configured as described above,
When the liquid (oil) is injected from the liquid inlet 7, the shrink-fitted drive shaft 2 is pushed together with the bulging wall 4 and swells against the shrink-fitting force F. As a result, the inner circumference of the drive shaft 2 comes into pressure contact with the driven shaft 3,
Axial coupling is achieved.
【００２１】このときの膨出壁両端部における応力は初
期圧縮応力が緩和される方向となり、図２（ｂ）のよう
に少なくとも部分両振りとなって、平均応力を低減する
ことができる。The stress at both ends of the bulging wall at this time is in a direction in which the initial compressive stress is relaxed, and at least partially swings as shown in FIG. 2B, so that the average stress can be reduced.
【００２２】なお、実施例では、膨出壁の内周面に、そ
の内径より大きい外径を有する円筒部材を焼ばめにより
圧入したが、膨出壁が外周部にあり、その外周面にその
外径より小さい内径を有する円筒部材を焼ばめにより圧
嵌して初期圧縮応力を与える場合も本発明の範囲に含ま
れる。In the embodiment, a cylindrical member having an outer diameter larger than the inner diameter is press-fitted into the inner peripheral surface of the bulging wall by shrink fitting. A case where a cylindrical member having an inner diameter smaller than the outer diameter is press-fitted by shrink fitting to give an initial compressive stress is also included in the scope of the present invention.
【００２３】[0023]
【発明の効果】以上説明したように、本発明によれば、
応力の発生する箇所である液室両端部付近の肉厚を厚く
することにより、機械的強度を向上し、疲労寿命を延ば
すことができる。As described above, according to the present invention,
By increasing the thickness near the both ends of the liquid chamber where the stress is generated, the mechanical strength can be improved and the fatigue life can be extended.
【００２４】また、従来、完全片振りであったものを、
膨出壁両端部に初期圧縮応力を与えることにより、少な
くとも部分両振りとして、疲労寿命を延ばすことができ
るという効果を奏するものである。In addition, what was conventionally a complete swing,
By applying the initial compressive stress to both ends of the bulging wall, the fatigue life can be extended at least as partial swinging.
【図１】本発明の液圧継手の一実施例の液室の両端部に
傾斜部を設けたものの要部断面図である。FIG. 1 is a sectional view of an essential part of a hydraulic joint according to an embodiment of the present invention in which inclined portions are provided at both ends of a liquid chamber.
【図２】従来例の完全片振りによる応力変化［図２
（ａ）］と、本発明の他の実施例における部分両振りに
よる応力変化［図２（ｂ）］を示す図である。FIG. 2 shows a change in stress due to complete pulsation of a conventional example [FIG.
FIG. 2A is a diagram showing a stress change [FIG. 2B] due to partial swing in another embodiment of the present invention.
【図３】本発明の他の実施例の初期圧縮応力を与えるた
めの液室及び膨出壁の構造を示す断面図である。FIG. 3 is a sectional view showing a structure of a liquid chamber and a bulging wall for giving an initial compressive stress according to another embodiment of the present invention.
【図４】本発明の他の実施例の初期圧縮応力を与えた状
態での断面図である。FIG. 4 is a cross-sectional view of another embodiment of the present invention in a state where an initial compressive stress is applied.
【図５】従来の液圧継手の断面図である。FIG. 5 is a sectional view of a conventional hydraulic coupling.
【図６】従来例における応力発生の説明図である。FIG. 6 is an explanatory diagram of stress generation in a conventional example.
１ …継手、 ２…駆動軸、 ３ …従動軸、 ４ …
膨出壁、 ５…液室、６…拡大部、 ７…液注入口、１
１…傾斜部。1 ... joint, 2 ... drive shaft, 3 ... driven shaft, 4 ...
Swelling wall, 5 ... Liquid chamber, 6 ... Enlarged part, 7 ... Liquid inlet, 1
1 ... Slope.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 高橋 郁夫 東京都中央区築地３丁目10番10号 株式 会社中村自工内 (72)発明者 橋本 幸雄 東京都中央区築地３丁目10番10号 株式 会社中村自工内 (56)参考文献 特開 昭61−206825（ＪＰ，Ａ) 特開 昭61−10108（ＪＰ，Ａ) 特開 平３−234917（ＪＰ，Ａ) 特開 平５−296252（ＪＰ，Ａ) 特公 昭61−206825（ＪＰ，Ｂ１) (58)調査した分野(Int.Cl.6，ＤＢ名) F16B 4/00 F16D 1/06──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Ikuo Takahashi 3-10-10 Tsukiji, Chuo-ku, Tokyo Stock Company Nakamura Jikoku Co., Ltd. (72) Inventor Yukio Hashimoto 3-10-10 Tsukiji, Chuo-ku, Tokyo Stock (56) References JP-A-61-206825 (JP, A) JP-A-61-10108 (JP, A) JP-A-3-234917 (JP, A) JP-A-5-296252 ( JP, A) JP-B 61-206825 (JP, B1) (58) Fields investigated (Int. Cl. 6 , DB name) F16B 4/00 F16D 1/06
Claims (3)
一定の肉厚の膨出壁を介して、軸方向に任意の幅を有す
る環状の液室が設けられ、前記液室に通じる液注入口か
ら圧入された液の圧力により前記膨出壁を膨出させて前
記円筒内に挿入され若しくは前記円柱に挿嵌された他の
部材に圧接させる液圧継手において、一定肉厚ｔの前記
膨出壁部分の両端部と、前記液室の軸方向両端部でかつ
膨出壁表面の延長面からｔ ０ （＞ｔ）の距離に設けられ
た円形の断面形状を有する拡大部との間に傾斜部を設け
たことを特徴とする液圧継手。 1. From the inner peripheral surface of a cylinder or the outer peripheral surface of a cylinder
Arbitrary width in the axial direction through a bulged wall of constant thickness
Annular liquid chamber is provided, and a liquid injection port communicating with the liquid chamber is provided.
The bulging wall is bulged by the pressure of the liquid press-fitted from the
Other inserted into the cylinder or inserted into the cylinder
In the hydraulic joint to be pressed against the member,
At both ends of the bulging wall portion, at both ends in the axial direction of the liquid chamber, and
Provided at a distance of t 0 (> t) from the extended surface of the bulging wall surface.
An inclined part is provided between the enlarged part having a circular cross-sectional shape.
A hydraulic coupling characterized in that:
介して、軸方向に任意の幅を有する環状の液室が設けら
れ、前記液室に通じる液注入口から圧入された液の圧力
により前記膨出壁を膨出させて前記円筒内に挿入された
他の部材に圧接させる液圧継手において、前記液室の膨
出壁部分の内径を、膨出壁部分の両側における継手本体
部分の内径より予め小さくしたものに、前記膨出壁部分
の内径より大きくかつ前記継手本体部分の内径より小さ
い外径を有する円筒部材を焼ばめにより圧入し、前記膨
出壁を後退させて初期圧縮応力を与えてなることを特徴
とする液圧継手。 2. A bulged wall having a constant thickness is formed from an inner peripheral surface of a cylinder.
An annular liquid chamber having an arbitrary width in the axial direction is provided.
And the pressure of the liquid press-fitted from the liquid inlet to the liquid chamber.
The bulging wall was bulged by and inserted into the cylinder
In a hydraulic joint pressed into contact with another member, the expansion of the liquid chamber is performed.
Adjust the inner diameter of the protruding wall to the joint body on both sides of the bulging wall.
The bulging wall portion is made smaller than the inner diameter of the portion in advance.
And smaller than the inside diameter of the joint body
A cylindrical member having a large outer diameter by shrink fitting.
It is characterized by giving the initial compressive stress by retracting the exit wall
And hydraulic joints.
介して、軸方向に任意の幅を有する環状の液室が設けら
れ、前記液室に通じる液注入口から圧入された液の圧力
により前記膨出壁を膨出させて前記円柱に挿嵌された他
の部材に圧接させる液圧継手において、前記液室の膨出
壁部分の外径を、膨出壁部分の両側における継手本体部
分の外径より予め大きくしたものに、前記膨出壁部分の
外径より小さくかつ前記継手本体部分の外径より大きい
内径を有する円筒部材を焼ばめにより圧嵌し、前記膨出
壁を後退させて初期圧縮応力を与えてなることを特徴と
する液圧継手。 3. A bulged wall having a certain thickness is formed from the outer peripheral surface of the cylinder.
An annular liquid chamber having an arbitrary width in the axial direction is provided.
And the pressure of the liquid press-fitted from the liquid inlet to the liquid chamber.
Other than being inserted into the cylinder by swelling the swelling wall
In a hydraulic joint to be pressed against a member,
Adjust the outer diameter of the wall part to the joint body on both sides of the bulging wall part.
The outside diameter of the bulging wall portion
Smaller than the outside diameter and larger than the outside diameter of the joint body
A cylindrical member having an inner diameter is press-fitted by shrink fit,
The feature is that the initial compressive stress is given by retracting the wall.
Hydraulic fittings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6063223A JP2784881B2 (en) | 1994-03-31 | 1994-03-31 | Hydraulic fitting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6063223A JP2784881B2 (en) | 1994-03-31 | 1994-03-31 | Hydraulic fitting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07269528A JPH07269528A (en) | 1995-10-17 |
| JP2784881B2 true JP2784881B2 (en) | 1998-08-06 |
Family
ID=13223001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6063223A Expired - Lifetime JP2784881B2 (en) | 1994-03-31 | 1994-03-31 | Hydraulic fitting |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2784881B2 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8220609B2 (en) * | 2006-03-30 | 2012-07-17 | Jtekt Corporation | Torque limiter |
| JP4922862B2 (en) * | 2007-08-10 | 2012-04-25 | 株式会社ベッセル工業 | Bit holder device |
| JP5012631B2 (en) * | 2008-04-14 | 2012-08-29 | 株式会社ジェイテクト | Shaft coupling device and torque limiter |
| JP5217979B2 (en) * | 2008-12-03 | 2013-06-19 | 株式会社ジェイテクト | Shaft coupling device and torque limiter |
| JP5488021B2 (en) * | 2010-02-12 | 2014-05-14 | 株式会社ジェイテクト | Shaft coupling device and torque limiter |
| JP5981261B2 (en) * | 2012-08-02 | 2016-08-31 | 未来工業株式会社 | Attachment for screwdriver |
| CN103115043A (en) * | 2013-02-28 | 2013-05-22 | 泰尔重工股份有限公司 | Pressure-bearing connecting sleeve |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3422000A1 (en) * | 1984-06-14 | 1985-12-19 | Albert Schrem Werkzeugfabrik GmbH, 7928 Giengen | PRESSURE-OPERATED CLAMPING DEVICE FOR CLAMPING TOOLS OR WORKPIECES |
| JPS61206825A (en) * | 1985-03-11 | 1986-09-13 | Yasuyuki Kawamorita | Bush for fastening boss of torque transmission shaft |
| JPH0737525B2 (en) * | 1986-07-23 | 1995-04-26 | 旭化成工業株式会社 | Method for producing block copolymer |
-
1994
- 1994-03-31 JP JP6063223A patent/JP2784881B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07269528A (en) | 1995-10-17 |
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