JP3698791B2 - Emergency shut-off device for lubrication equipment - Google Patents

Emergency shut-off device for lubrication equipment Download PDF

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Publication number
JP3698791B2
JP3698791B2 JP02861196A JP2861196A JP3698791B2 JP 3698791 B2 JP3698791 B2 JP 3698791B2 JP 02861196 A JP02861196 A JP 02861196A JP 2861196 A JP2861196 A JP 2861196A JP 3698791 B2 JP3698791 B2 JP 3698791B2
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Prior art keywords
pipe joint
resistance
pipe
tensile force
oil supply
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JPH09202398A (en
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慎二 中原
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株式会社富永製作所
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L29/00—Joints with fluid cut-off means

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Loading And Unloading Of Fuel Tanks Or Ships (AREA)
  • Joints That Cut Off Fluids, And Hose Joints (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)

Description

【０００１】
【発明の属する技術分野】
本発明は、ガソリンスタンド等の給油所に設置された給油装置の緊急遮断装置に関するものである。
【０００２】
【従来の技術】
給油所においては、給油中に被給油車が不用意に動き出してノズルが引っ張られ、給油ホースが引きちぎられたり、給油経路の接続部が外れたりする事故が発生することがある。この対策として、給油管路に所定値以上の引張力が働くと、被破壊片（連結片）が破断して、一対の管継手が互いに離脱することで、内蔵されている弁が流路を閉止する緊急遮断装置が種々提案されている。
【０００３】
ところで、管継手は給油スタンドに接続されており、管継手に働く引張力は、その軸線方向に働くとは限らず、径方向の成分を含んだ方向（以下、「斜め方向」という。）に働く場合があり、この場合、被破壊片が破断しにくかったり、あるいは、破断しないという問題がある。この対策として、一対の管継手を球面すべり軸受のように、球面接触させて、斜め方向に引張力が働いた場合にも、被破壊片が破断するようにした緊急遮断装置が知られている（特公平６−７６１１８号公報参照）。
【０００４】
【発明が解決しようとする課題】
しかし、軸線方向に引張力が働いたときと、斜め方向に引張力が働いたときとでは、同じ大きさの引張力であっても、被破壊片に生じる応力が異なる。そのため、斜め方向に引張力が働いた際には、小さな引張力で被破壊片が破断するという現象を呈する。したがって、給油ホースに所定の大きな引張力が働いていないにもかかわらず、緊急遮断装置が作動するという問題がある。
【０００５】
本発明は前記従来の問題に鑑みてなされたもので、その目的は、斜め方向に引張力が働いた場合にも作動し得ると共に、管継手に働く引張力の方向にかかわらず、緊急遮断装置が作動する引張力の大きさのバラツキを小さくすることである。
【０００６】
【課題を解決するための手段】
本発明は、第１管継手と第２管継手とが連結片を介して互いに接続され、前記第２管継手に接続された給油ホースに所定値以上の引張力が働いた際に、前記連結片が変形ないし破断して、前記第２管継手が第１管継手から離脱すると共に、前記第１管継手内の弁体が第１管継手の弁座に着座して流路を閉止することを前提とする。
本発明は、前記目的を達成するために、前記第２管継手が前記第１管継手に対して前記第２管継手の軸線を含む平面に沿って回転可能となるように、前記両管継手を構成すると共に、前記第２管継手が前記平面に沿って回転しながら引っ張られる際に変形して抵抗となり、かつ、前記第２管継手が軸線方向に引っ張られる際の抵抗よりも、前記第２管継手が前記平面に沿って回転しながら引っ張られる際の抵抗の方が大きな抵抗となる抵抗部を設けている。なお、「前記第２管継手の軸線」とは、前記両管継手の接合部分における流路の流れ方向に平行な中心線をいう。
【０００７】
本発明によれば、第２管継手に対して斜め方向に引張力が働くと、第２管継手が軸線を含む平面に沿って回転しながら引っ張られると共に、この際に、抵抗部が変形して抵抗となる。そのため、引張力の方向にかかわらず、緊急遮断装置が作動する引張力の大きさのバラツキが小さくなる。
【０００８】
【発明の実施の形態】
以下、本発明の実施形態を図面にしたがって説明する。
図１および図２は第１実施形態を示す。
図１において、緊急遮断装置Ａは、第１管継手１、第２管継手２、被破壊片（連結片）３および弁体４などで構成されている。第１管継手１は、給油スタンドに固着された給油管５に接続され、一方、第２管継手２は給油ホース６の上流端部に接続されている。
【０００９】
前記第１管継手１内には、開状態に保持された弁体４が収納されていると共に、弁座１０が形成されている。前記第１管継手１と第２管継手２との間には、保持片７が挟み付けられており、この保持片７は、第１管継手１内の空間に入り込んで弁体４を開状態に保持している。なお、弁体４は、バネ８によって閉方向に付勢されている。
【００１０】
前記第１管継手１の先端部近傍には、２つ割れの円環状の被破壊片３が、第１管継手１の軸線Ｃ方向に係合した状態で装着されている。被破壊片３は、第１管継手１の外周に装着されており、一方、円周方向に等角度ピッチで設けた３本の雄ネジ９（図面では１本のみ図示）が第２管継手２にねじ込まれていると共に、雄ネジ９の先端が被破壊片３の貫通孔３ａ内に挿入されている。これにより、第２管継手２と第１管継手１とが被破壊片３を介して互いに連結されている。前記被破壊片３は、給油ホース６に所定値以上の引張力が働いた際に破断して、第２管継手２が第１管継手１から離脱するのを許容するものである。この離脱時には、保持片７が外れるので、弁体４が弁座１０に着座して流路１１が閉止する。
【００１１】
第１管継手１の先端部１２は、円環状に形成されて、第２管継手２の内側の円周面に隙間なく嵌合している。一方、第２管継手２の先端部２２は、円環状に形成されて、第１管継手１の外側の円周面に隙間なく嵌合している。これらの嵌合部分は、後述する抵抗部Ｒを構成している。
【００１２】
前記被破壊片３の外周面は、第２管継手２における反対側の内面の先端（以下、「点Ｏ」という。）を中心とする凸型の球状面３ｂに設定されている。つまり、被破壊片３の外周面は、母線が円弧状の円錐面に設定されている。前記第２管継手２は、第１管継手１および第２管継手２の先端部１２，２２間において、前記凸型の球状面３ｂに嵌合する凹型の球状面２ｂを有している。これにより、第１管継手１と第２管継手２とは、被破壊片３を介して、２つの先端部１２，２２間において互いにすべり接触するように構成されている。つまり、斜め方向に外力Ｆが働いた際に、第２管継手２が第１管継手１に対して第２管継手の軸線Ｃを含む平面（たとえば、図１に示す縦断面を含む平面）に沿って回転可能となっている。
【００１３】
一方、前記抵抗部Ｒは、両管継手１，２が嵌合している円周面を有しているから、第２管継手２が軸線Ｃ方向に引っ張られる際には抵抗とならず、他方、軸線Ｃを含む平面に沿って点Ｏを中心として、図２のように、第２管継手２が回転しながら引っ張られる際には、抵抗部Ｒが変形して抵抗となる。
【００１４】
つぎに、前記構成の動作について説明する。
まず、図１の軸線Ｃに沿って引張力が働くと、雄ネジ９を介して、被破壊片３の３つの貫通孔３ａ近傍にせん断力が発生し、この際の引張力が所定値以上であると、被破壊片３が貫通孔３ａにおいて破断する。この破断によって、第２管継手２が第１管継手１から離脱すると共に保持片７が落下し、バネ８のバネ力等で弁体４が弁座１０に着座して流路１１が閉塞される。
【００１５】
一方、引張力Ｆが斜め方向に働くと、図２に示すように、第２管継手２が点Ｏを中心に軸線Ｃを含む平面に沿って回転しようとする。この際、回転中心である点Ｏの反対側の貫通孔３ａ近傍の応力が、他の貫通孔（図示せず）近傍の応力よりれも著しく大きくなる。しかし、前記図１の抵抗部Ｒが図２のように変形して抵抗となる。そのため、引張力が斜め方向に働いた場合も、前述と同程度の力で被破壊片３が破断する。したがって、引張力の作用する方向にかかわらず、緊急遮断装置Ａが所定の引張力で作動する。
【００１６】
なお、本実施形態では、第２管継手２と被破壊片３とが球状面２ｂ，３ｂで嵌合しているから、第２管継手２が点Ｏを中心に回転し易い。そのため、斜め方向に引張力が作用した際に、所期の動作が得られるので、破断する引張力の値が安定し易いという利点がある。
【００１７】
ところで、本実施形態では、図１のＯリング３０近傍において、第１管継手１と第２管継手２との間に隙間Ｓ１を設けているが、本発明では、隙間Ｓ１を設けずに、第１管継手１と第２管継手２とを球面ないしは球状面で接触させてもよい。
【００１８】
また、第１管継手１の先端部１２は第２管継手２に隙間なく嵌合している必要はなく、図３のように、若干の隙間Ｓ２を設けて、第１管継手１の先端部１２を第２管継手２にルーズに嵌合させてもよい。更に、図４のように、第１管継手１の先端部１２に樹脂製のリング３１をねじ込んで、リング３１で抵抗部Ｒを構成してもよい。また、第１管継手１の先端部１２を完全な円環とする必要はなく、図５のように、多数の切欠部１２ａを有する円環状としてもよく、この場合も本発明の範囲に含まれる。
【００１９】
また、図１の被破壊片３の凸型の球状面３ｂは、点Ｏを中心とした球状面とする必要はなく、図１の球状面３ｂよりも小さな曲率ないしは大きな曲率を有する球状面としてもよい。
【００２０】
また、被破壊片は、樹脂製のリングで構成する必要はなく、前記先行技術（特公平６−７６１１８号）のように、ピンが破断する構造としてもよい。さらに、以上の実施形態では、連結片が破断することとしたが、連結片は変形するものであってもよく、可能であれば、硬質のゴムで形成して、弾性変形することによって、緊急遮断装置Ａを作動させるものであってもよい。
【００２１】
また、前記実施形態では、軸線Ｃ方向に引張力が働いた際には、抵抗部Ｒは殆ど抵抗とならない。しかし、本発明では、軸線Ｃ方向に引張力が働いた際に抵抗部Ｒが抵抗となっても、軸線Ｃ方向よりも斜め方向に引張力が働いた場合の方が抵抗部Ｒの抵抗が大きければよい。
【００２２】
【発明の効果】
以上説明したように、本発明によれば、斜め方向に引張力が働いた場合に変形して大きな抵抗となる抵抗部を設けたので、給油ホースを引っ張る方向にかかわらず、緊急遮断装置が作動する力の大きさのバラツキが小さくなる。
【図面の簡単な説明】
【図１】 本発明の第１実施形態を示す給油装置の緊急遮断装置の縦断面図である。
【図２】 同じく動作を示す縦断面図である。
【図３】 第２実施形態を示す給油装置の緊急遮断装置の縦断面図である。
【図４】 第３実施形態を示す給油装置の緊急遮断装置の縦断面図である。
【図５】 抵抗部の変形例を示す破断した斜視図である。 [0001]
BACKGROUND OF THE INVENTION
The present invention relates to an emergency shut-off device for a fueling device installed in a gas station such as a gas station.
[0002]
[Prior art]
In a gas station, an oiled vehicle may inadvertently move during refueling, the nozzle may be pulled, a fuel hose may be torn off, or an accident may occur in which the connection part of the oil supply path is disconnected. As a countermeasure, when a tensile force of a predetermined value or more is applied to the oil supply pipeline, the fractured piece (connecting piece) breaks and the pair of pipe joints are separated from each other, so that the built-in valve Various emergency shut-off devices for closing have been proposed.
[0003]
By the way, the pipe joint is connected to the oiling stand, and the tensile force acting on the pipe joint does not necessarily work in the axial direction, but in a direction including a radial component (hereinafter referred to as “oblique direction”). In this case, there is a problem that the piece to be broken is difficult to break or does not break. As a countermeasure against this, an emergency shut-off device is known in which a pair of pipe joints are brought into spherical contact like a spherical plain bearing, and even when a tensile force acts in an oblique direction, the broken piece is broken. (See Japanese Patent Publication No. 6-76118).
[0004]
[Problems to be solved by the invention]
However, when the tensile force is applied in the axial direction and when the tensile force is applied in the oblique direction, the stress generated in the fractured piece is different even if the tensile force has the same magnitude. Therefore, when a tensile force is applied in an oblique direction, a phenomenon occurs in which the piece to be broken is broken with a small tensile force. Therefore, there is a problem that the emergency shut-off device operates even when a predetermined large tensile force is not applied to the oil supply hose.
[0005]
The present invention has been made in view of the above-described conventional problems, and its purpose is to operate even when a tensile force is applied in an oblique direction, and an emergency shut-off device regardless of the direction of the tensile force acting on a pipe joint. This is to reduce the variation in the magnitude of the tensile force that operates.
[0006]
[Means for Solving the Problems]
In the present invention, the first pipe joint and the second pipe joint are connected to each other via a connecting piece, and when the tensile force of a predetermined value or more is applied to the oil supply hose connected to the second pipe joint, the connection When the piece is deformed or broken, the second pipe joint is detached from the first pipe joint, and the valve body in the first pipe joint is seated on the valve seat of the first pipe joint to close the flow path. Assuming
In order to achieve the above object, the present invention provides the two pipe joints such that the second pipe joint is rotatable with respect to the first pipe joint along a plane including the axis of the second pipe joint. And deformed when the second pipe joint is rotated while being rotated along the plane to become resistance, and more than the resistance when the second pipe joint is pulled in the axial direction. A resistance portion is provided in which the resistance when the two pipe joint is pulled while rotating along the plane becomes larger. The “axis of the second pipe joint” refers to a center line parallel to the flow direction of the flow path at the joint portion of the two pipe joints.
[0007]
According to the present invention, when a tensile force acts on the second pipe joint in an oblique direction, the second pipe joint is pulled while rotating along a plane including the axis, and at this time, the resistance portion is deformed. It becomes resistance. Therefore, regardless of the direction of the tensile force, the variation in the magnitude of the tensile force at which the emergency shut-off device operates is reduced.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 and 2 show a first embodiment.
In FIG. 1, the emergency shut-off device A includes a first pipe joint 1, a second pipe joint 2, a piece to be destroyed (connecting piece) 3 and a valve body 4. The first pipe joint 1 is connected to the oil supply pipe 5 fixed to the oil supply stand, while the second pipe joint 2 is connected to the upstream end of the oil supply hose 6.
[0009]
A valve body 4 held in an open state is housed in the first pipe joint 1 and a valve seat 10 is formed. A holding piece 7 is sandwiched between the first pipe joint 1 and the second pipe joint 2, and the holding piece 7 enters the space in the first pipe joint 1 to open the valve body 4. Held in a state. The valve body 4 is urged in the closing direction by a spring 8.
[0010]
In the vicinity of the distal end portion of the first pipe joint 1, a two-ring broken piece 3 to be broken is mounted in an engaged state in the direction of the axis C of the first pipe joint 1. The fractured piece 3 is mounted on the outer periphery of the first pipe joint 1, while three male screws 9 (only one is shown in the drawing) provided at an equal angular pitch in the circumferential direction are the second pipe joint. 2, and the tip of the male screw 9 is inserted into the through hole 3 a of the broken piece 3. Thereby, the 2nd pipe joint 2 and the 1st pipe joint 1 are mutually connected via the to-be-destructed piece 3. FIG. The to-be-destructed piece 3 breaks when a tensile force of a predetermined value or more is applied to the oil supply hose 6 and allows the second pipe joint 2 to be detached from the first pipe joint 1. At the time of detachment, since the holding piece 7 is detached, the valve body 4 is seated on the valve seat 10 and the flow path 11 is closed.
[0011]
The distal end portion 12 of the first pipe joint 1 is formed in an annular shape and is fitted to the inner circumferential surface of the second pipe joint 2 without a gap. On the other hand, the distal end portion 22 of the second pipe joint 2 is formed in an annular shape, and is fitted to the outer circumferential surface of the first pipe joint 1 without a gap. These fitting portions constitute a resistance portion R described later.
[0012]
The outer peripheral surface of the fractured piece 3 is set to a convex spherical surface 3 b centering on the tip of the inner surface on the opposite side of the second pipe joint 2 (hereinafter referred to as “point O”). In other words, the outer peripheral surface of the destruction target piece 3 is set to be a conical surface having a circular arc as a generatrix. The second pipe joint 2 has a concave spherical surface 2b that fits into the convex spherical surface 3b between the distal ends 12 and 22 of the first pipe joint 1 and the second pipe joint 2. Thereby, the 1st pipe joint 1 and the 2nd pipe joint 2 are comprised so that it may mutually contact between the two front-end | tip parts 12 and 22 via the to-be-destructed piece 3. FIG. That is, when an external force F is applied in an oblique direction, the second pipe joint 2 includes a plane including the axis C of the second pipe joint with respect to the first pipe joint 1 (for example, a plane including the longitudinal section shown in FIG. 1). It is possible to rotate along.
[0013]
On the other hand, the resistance portion R has a circumferential surface on which both pipe joints 1 and 2 are fitted. Therefore, when the second pipe joint 2 is pulled in the direction of the axis C, it does not become resistance. On the other hand, when the second pipe joint 2 is pulled while rotating around the point O along the plane including the axis C as shown in FIG. 2, the resistance portion R is deformed to become resistance.
[0014]
Next, the operation of the above configuration will be described.
First, when a tensile force is applied along the axis C in FIG. 1, a shearing force is generated in the vicinity of the three through holes 3a of the fractured piece 3 via the male screw 9, and the tensile force at this time exceeds a predetermined value. If it is, the to-be-destructed piece 3 will fracture | rupture in the through-hole 3a. Due to this breakage, the second pipe joint 2 is detached from the first pipe joint 1 and the holding piece 7 is dropped, and the valve body 4 is seated on the valve seat 10 by the spring force of the spring 8 and the flow path 11 is closed. The
[0015]
On the other hand, when the tensile force F acts in an oblique direction, the second pipe joint 2 tries to rotate along a plane including the axis C around the point O as shown in FIG. At this time, the stress in the vicinity of the through hole 3a opposite to the point O, which is the center of rotation, is significantly larger than the stress in the vicinity of other through holes (not shown). However, the resistance portion R of FIG. 1 is deformed as shown in FIG. Therefore, even when the tensile force acts in an oblique direction, the fractured piece 3 is broken with the same force as described above. Therefore, regardless of the direction in which the tensile force acts, the emergency shut-off device A operates with a predetermined tensile force.
[0016]
In the present embodiment, since the second pipe joint 2 and the broken piece 3 are fitted with the spherical surfaces 2b and 3b, the second pipe joint 2 is easy to rotate around the point O. Therefore, when a tensile force acts in an oblique direction, an expected operation can be obtained, so that there is an advantage that the value of the tensile force at which it breaks is easily stabilized.
[0017]
By the way, in the present embodiment, the gap S1 is provided between the first pipe joint 1 and the second pipe joint 2 in the vicinity of the O-ring 30 in FIG. 1, but in the present invention, the gap S1 is not provided. The first pipe joint 1 and the second pipe joint 2 may be brought into contact with each other on a spherical surface or a spherical surface.
[0018]
Further, the distal end portion 12 of the first pipe joint 1 does not have to be fitted to the second pipe joint 2 without a gap, and a slight gap S2 is provided as shown in FIG. The portion 12 may be loosely fitted to the second pipe joint 2. Furthermore, as shown in FIG. 4, a resin ring 31 may be screwed into the distal end portion 12 of the first pipe joint 1, and the resistance portion R may be configured by the ring 31. Further, the distal end portion 12 of the first pipe joint 1 does not have to be a complete annular shape, and may be an annular shape having a large number of notches 12a as shown in FIG. 5, and this case is also included in the scope of the present invention. It is.
[0019]
Further, the convex spherical surface 3b of the broken piece 3 in FIG. 1 does not need to be a spherical surface with the point O as the center, and is a spherical surface having a smaller curvature or a larger curvature than the spherical surface 3b in FIG. Also good .
[0020]
Also, the debris does not have to be a resin-made ring, as in the prior art (Kokoku No. 6-76118), a structure may be employed in which the pin breaks. Further, in the above embodiment, the connecting piece is broken, but the connecting piece may be deformed, and if possible, it is made of hard rubber and elastically deformed. The blocking device A may be operated.
[0021]
In the embodiment, when a tensile force is applied in the direction of the axis C, the resistance portion R hardly becomes a resistance. However, in the present invention, even if the resistance portion R becomes resistance when a tensile force is applied in the direction of the axis C, the resistance of the resistance portion R is greater when the tensile force is applied in an oblique direction than in the direction of the axis C. It only needs to be large.
[0022]
【The invention's effect】
As described above, according to the present invention, the emergency shut-off device is operated regardless of the direction in which the oil supply hose is pulled because the resistance portion that is deformed and becomes a large resistance when a tensile force is applied in an oblique direction is provided. Variation in the magnitude of the force to be reduced.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view of an emergency shut-off device for a fueling device showing a first embodiment of the present invention.
FIG. 2 is a longitudinal sectional view showing the same operation.
FIG. 3 is a longitudinal sectional view of an emergency shut-off device for an oil supply device showing a second embodiment.
FIG. 4 is a longitudinal sectional view of an emergency shut-off device for an oil supply device showing a third embodiment.
FIG. 5 is a broken perspective view showing a modified example of the resistance portion .

Claims (1)

第１管継手と第２管継手とが連結片を介して互いに接続され、前記第２管継手に接続された給油ホースに所定値以上の引張力が働いた際に、前記連結片が変形ないし破断して、前記第２管継手が第１管継手から離脱すると共に、前記第１管継手内の弁体が第１管継手の弁座に着座して流路を閉止する給油装置の緊急遮断装置であって、
前記第２管継手が前記第１管継手に対して前記第２管継手の軸線を含む平面に沿って回転可能となるように、前記両管継手を構成すると共に、
前記第２管継手が前記平面に沿って回転しながら引っ張られる際に変形して抵抗となり、かつ、前記第２管継手が軸線方向に引っ張られる際の抵抗よりも、前記第２管継手が前記平面に沿って回転しながら引っ張られる際の抵抗の方が大きな抵抗となる抵抗部を設け、
前記２つの管継手の先端部が円環状に形成されて一方の管継手が他方の管継手の内周面または外周面に嵌合して前記抵抗部が形成され、
前記両管継手が前記２つの先端部の間において、球状面によってすべり接触するように構成されている給油装置の緊急遮断装置。When the first pipe joint and the second pipe joint are connected to each other via a connecting piece, and the tensile force of a predetermined value or more is applied to the oil supply hose connected to the second pipe joint, the connecting piece is not deformed. Breaking, the second pipe joint is detached from the first pipe joint, and the valve element in the first pipe joint is seated on the valve seat of the first pipe joint to close the flow path, thereby emergency shutoff of the oil supply device A device,
The both pipe joints are configured such that the second pipe joint is rotatable with respect to the first pipe joint along a plane including the axis of the second pipe joint,
When the second pipe joint is rotated while being pulled along the plane, the second pipe joint is deformed to become resistance, and the second pipe joint is more resistant than the resistance when the second pipe joint is pulled in the axial direction. Provide a resistance part where the resistance when pulling while rotating along a plane becomes greater resistance ,
The tip portions of the two pipe joints are formed in an annular shape, and one of the pipe joints is fitted to the inner peripheral surface or the outer peripheral surface of the other pipe joint to form the resistance portion,
An emergency shut-off device for an oil supply device, wherein both pipe joints are configured to make sliding contact with a spherical surface between the two tip portions .
JP02861196A 1996-01-22 1996-01-22 Emergency shut-off device for lubrication equipment Expired - Fee Related JP3698791B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP02861196A JP3698791B2 (en) 1996-01-22 1996-01-22 Emergency shut-off device for lubrication equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP02861196A JP3698791B2 (en) 1996-01-22 1996-01-22 Emergency shut-off device for lubrication equipment

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Publication Number Publication Date
JPH09202398A JPH09202398A (en) 1997-08-05
JP3698791B2 true JP3698791B2 (en) 2005-09-21

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Publication number Priority date Publication date Assignee Title
JP5444542B2 (en) * 2010-08-26 2014-03-19 株式会社富永製作所 Emergency shut-off device for lubrication equipment

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