JP4143989B2 - Piston dredge device for air cork stoppers such as wine bottles - Google Patents

Piston dredge device for air cork stoppers such as wine bottles Download PDF

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JP4143989B2
JP4143989B2 JP28965099A JP28965099A JP4143989B2 JP 4143989 B2 JP4143989 B2 JP 4143989B2 JP 28965099 A JP28965099 A JP 28965099A JP 28965099 A JP28965099 A JP 28965099A JP 4143989 B2 JP4143989 B2 JP 4143989B2
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air
piston rod
piston
shaft portion
piston ring
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JP2001114392A (en
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有宏 毛利
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有限会社三友
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Description

【０００１】
【発明が属する技術分野】
この発明は、ワインボトル等のエア式コルク栓抜に装備されるピストン杆装置に関するものである。
【０００２】
【従来の技術】
従来、ワインボトル等のコルク栓抜は、コイル線型、スクリュウネジ型など非常に多くの種類が提案されている。
【０００３】
【発明が解決しようとする課題】
前記、従来のコルク栓にコイル線金を刺し通し、このコイル線金と一体の柄体に力を掛けて引き抜くコイル線型は、引き抜き初期に大きな引き抜き力を必要とする。スクリュウネジ型は、ハンドルを回転させて序々に引き抜くので、大きな引き抜き力を必要としないが、スクリュウネジが太いために、コルク栓を破損させることや、スクリュウネジを途中でネジ込みから引き抜き推力に変換するために機構が複雑である等の欠点があった。そこで、先に、本特許出願人はかかる欠点を改善し、瞬間的な大きな力を全く必要とせず、初期から開栓までの操作力が一定して軽く、非力な人が容易に開栓を行えるワインボトル等のエア式コルク栓抜（特願平１１−２０６３４３号）を提案している。
【０００４】
前記エア式コルク栓抜において、ピストン杆を移動してシリンダー内の空気を押し出すには、ピストン端面の面積に比例し、かつピストンの押し出し速度に関連する押圧力を必要とする。次に、ピストン杆を戻すときには、外部空気をシリンダー内に吸引しなければならない。しかるに、そのエア式コルク栓抜をコンパクトに形成するため、また、操作力を軽減するため等からピストン径を細くする必要がある。しかし、ピストン径を細くすると、その直径内に空気を吸引するピストン弁を設けることが技術的に困難である。そこで、互いに密接するシリンダー内径面とピストン外径面との間から空気を吸引することになり、ピストン杆の戻し作動を軽く、円滑に行えない欠点が発生するものである。この欠点は、ピストン杆をモーター等の原動機構に関連して駆動する場合も同様の動力損を生じて欠点となるものである。
【０００５】
この発明は、かかるエア式コルク栓抜の中心機構となるピストン杆装置の改良を目的になされたものである。
【０００６】
【課題を解決するための手段】
ピストンロッドの先端に基端に環状支承面をもつ軸部を形成し、その軸部の先端面に開口する取付孔を設け、前記軸部に基端側から、オーリング、座金、弾性ピストンリングおよび表面側と裏面側に横断して外径側と内径側に連通する空気路となる表面側溝路と裏面側溝路と、裏面側の外周面が環状に凹陥する片側開放溝部を前記弾性ピストンリングのために具えた支え当金を夫々嵌合し、この支え当金の表面側を前記取付孔に螺合固着する取付ネジにより締付け、座金と支え当金との間に前記弾性ピストンリングを遊嵌配備してなるワインボトル等のエア式コルク栓抜のピストン杆装置にある。
【０００７】
【発明の実施の形態】
ワインボトル２のコルク栓３を上下に貫通して刺し通すエアー給送針４を外筒５の外筒先端部５ａに内方と連通配備し、その外筒５の外筒内径面５ｂと所要に離隔し、その外筒内径面５ｂおよび外筒先端部内面５ａ１と離隔してエアー溜６を構成するエアー給送シリンダー７を先端部７ａに逆止弁８を中途に配設した通気孔９を開通して外筒５内に配備し、このエアー給送シリンダー７の内方に、外端に柄部１０を、反対の下端に弾性ピストンリング１１を具えたピストンロッド１２を嵌装配備してなるワインボトル等のエア式コルク栓抜１において、前記ピストンロッド１２の先端に基端に環状支承面１４ａをもつ軸部１４を形成し、その軸部１４の先端面に開口する取付孔１５を設け、前記軸部に基端側から、オーリング１６、座金１７、弾性ピストンリング１２および表面側と裏面側に横断して外径側と内径側に連通する空気路となる表面側溝路１８と裏面側溝路１９と、裏面側の外周面が環状に凹陥する片側開放溝部２０を弾性ピストンリング１１のために具えた支え当金２１を夫々嵌合し、この支え当金２１の表面側を前記取付孔１５に螺合固着する取付ネジ２２により締付け、座金１７と支え当金２１との間に弾性ピストンリング１２を遊嵌配備してなるワインボトル等のエア式コルク栓抜のピストン杆装置。
【０００８】
【実施例】
以下、この発明のワインボトル等のエア式コルク栓抜のピストン杆装置を図面に示す実施例のワインボトル等のエア式コルク栓抜１により説明すると、ワインボトル２のコルク栓３を上下に貫通して刺し通すエアー給送針４を外筒５の外筒先端部５ａに内方と連通配備し、その外筒５の外筒内径面５ｂと所要に離隔し、その外筒内径面５ｂおよび外筒先端部内面５ａ１と、離隔してエアー溜６を構成するエアー給送シリンダー７を先端部７ａに逆止弁８を中途に配設した通気孔９を開通して外筒５内に配備し、このエアー給送シリンダー７の内方に、外端に柄部１０を、反対の下端に下降シール部材として、例えば、弾性ピストンリング１１を具えたピストンロッド１２を嵌装配備し、外筒５の先端に、外筒外周面５ｃにスライド自在に連結する支え筒１３を装備してなるものである。
【０００９】
前記ピストンロッド１２の先端の所要長さを、ピストンロッド１２の外径より細い外径の軸部１４に形成すると共に、その軸部１４の基端におけるピストンロッド１２の外径と軸部１４の外径との差を環状支承面１４ａに形成し、ピストンロッド１２の先端部には、軸部１４の先端面に開口する取付孔１５を設け、ピストンロッド１２の軸部１４に基端側から、オーリング１６、座金１７、弾性ピストンリング１１および表面側と裏面側に横断して外径側と内径側に連通する空気路となる表面側溝路１８と裏面側溝路１９と、裏面側の外周面が環状に凹陥する片側開放溝部２０を弾性ピストンリング１１のために具えた支え当金２１を夫々嵌合し、支え当金２１の表面側を前記取付孔１５に螺合固着する取付ネジ２２により締付け、座金１７と支え当金２１との間に弾性ピストンリング１１を遊嵌配備してなるものである。
【００１０】
弾性ピストンリング１１は、合成ゴム材で構成し、その先端外周１１ｃは断面三角形に拡径し、先端面に環状溝１１ｄの肉抜きをなしている。
【００１１】
この発明のピストン杆装置が装備されるワインボトル等のエア式コルク栓抜１は、上記のように構成されるから、図１に示すように、ワインボトル２の口部２ａに支え筒１３を嵌合して全体を支持し、次に、外筒５を押し下げて先端のエアー給送針４をコルク栓３に刺し通し、エアー給送針４の先端の空気孔４ａをワインボトル２内に配置する。そこで、他方の手を柄部１０に掛けてピストンロッド１２を上下に往復動させると、そのピストンロッド１２が下降するとき、ピストンロッド１２の先端は、下降シール部材として、弾性ピストンリング１１で気密にシールされているので、エアー給送シリンダー７内の空気を先端の通気孔９からエアー溜６に送出する。そして、逆止弁８によりエアー給送シリンダー７に戻ることはなく、ピストンロッド１２の下降作動により圧縮して送出される空気はエアー溜６と連通するエアー給送針４を通じてワインボトル２内に給送される。ピストンロッド１２が上昇するとき、エアー給送シリンダー７が真空になるので、弾性ピストンリング１１が湾曲して外部空気をエアー給送シリンダー７内に吸引し、ピストンロッド１２を抵抗なく上昇できる。ワインボトル２内で高められ空気は、コルク栓３を外方に押し出すものである。この時、支え筒１３は、ワインボトル２と一体に支持しているから、支え筒１３内をコルク栓３と外筒５とが一体になって上方にスライドして外れ、外れた後も支え筒１３により支持されるのである。
【００１２】
そしてピストン杆装置２３は前述のようになるから、座金１７の裏面はオーリング１６に圧接しているので、座金１７の内径面１７ａは気密に構成され、弾性ピストンリング１１は、座金１７に底面１１ａを接し、内径面１１ｂを支え当金２１の片側開放溝部２０に接して位置決めされるので、ピストンロッド１２を押し下げて弾性ピストンリング１１に空気圧が掛かると、その底面１１ａが座金１７に接して気密になり、また、ピストンロッド１２を上昇させて弾性ピストンリング１１が引上げられて支え当金２１に当たると、弾性ピストンリング１１の底面１１ａが座金１７から離れて弾性ピストンリング１１の底面１１ａと座金１７との気密がなくなり、支え当金２１の裏面側溝路１９の外径側は、弾性ピストンリング１１により区画されるエアー給送シリンダー７の基端側室７ｂに通じて外気に連通し、反対に裏面側溝路１９の内径側は支え当金２１の内径面２１ａに通じて表面側溝路１８と連通し、弾性ピストンリング１１により区画されるエアー給送シリンダー７の先端側室７ａ１に連通する。そこで、外気とエアー給送シリンダー７の先端側室７ａ１に空気路が連通する。そこで、ピストンロッド１２を押し下げるときには、弾性ピストンリング１１が空気路は遮断されて先端側室７ａ１内の空気を押し出し、反対にピストンロッド１２を引上げるときには、外気を先端側室７ａ１内に吸引できるものである。
【００１３】
弾性ピストンリング１１は、合成ゴム材で構成し、その先端外周１１ｃは断面三角形に拡径し、先端面に環状溝１１ｄの肉抜きをなしているから、ピストンロッド１２を押し下げるときには、その先端外周１１ｃ側が外側に外径を拡長してシリンダーの内径面に圧着して空気漏れをなくし、反対にピストンロッド１２を引上げるときには、その先端外周１１ｃ側が内側に外径を縮小してシリンダーの内径面との間の空気を通過させると共にシリンダーの内径面と摩擦を軽減するものである。
【００１４】
【発明の効果】
この発明のワインボトル等のエア式コルク栓抜のピストン杆装置は、以上のようになるから、構成が簡単で、優れた押圧気密性と引抜き気密開放性をもつものである。
【図面の簡単な説明】
【図１】図面は、この発明のワインボトル等のエア式コルク栓抜のピストン杆装置を装備したワインボトル等のエア式コルク栓抜をワインボトルに連接して栓抜き作動状態を示す縦断面図である。
【図２】同じく、この発明のワインボトル等のエア式コルク栓抜のピストン杆装置の要部を拡大して示す一部切欠き断面部分図である。
【図３】同じく、この発明のワインボトル等のエア式コルク栓抜のピストン杆装置の分解斜視図である。
【図４】同じく、この発明のワインボトル等のエア式コルク栓抜のピストン杆装置を構成する支え当金単体の後面側からの斜視図である。
【符号の説明】
１ ワインボトル等のエア式コルク栓抜
２ ワインボトル
２ａ 口部
３ コルク栓
４ エアー給送針
４ａ 空気孔
５ 外筒
５ａ 外筒先端部
５ａ１ 外筒先端部内面
５ｂ 外筒内径面
５ｃ 外筒外周面
６ エアー溜
７ エアー給送シリンダー
７ａ 先端部
７ａ１ 先端側室
７ｂ 基端側室
８ 逆止弁
９ 通気孔
１０ 柄部
１１ 弾性ピストンリング
１１ａ 底面
１１ｂ 内径面
１１ｃ 先端外周
１１ｄ 環状溝
１２ ピストンロッド
１３ 支え筒
１４ 軸部
１４ａ 環状支承面
１５ 取付孔
１６ オーリング
１７ 座金
１７ａ 内径面
１８ 表面側溝路
１９ 裏面側溝路
２０ 片側開放溝部
２１ 支え当金
２１ａ 内径面
２２ 取付ネジ
２３ ピストン杆装置[0001]
[Technical field to which the invention belongs]
The present invention relates to a piston rod device that is equipped with an air cork stopper such as a wine bottle.
[0002]
[Prior art]
Conventionally, a great number of cork stoppers such as wine bottles have been proposed, such as a coil wire type and a screw screw type.
[0003]
[Problems to be solved by the invention]
The coil wire type in which the coil wire is pierced through the conventional cork stopper and is pulled out by applying a force to the handle integrally formed with the coil wire requires a large pulling force in the initial pulling. The screw screw type is pulled out gradually by rotating the handle, so it does not require a large pulling force.However, the screw screw is thick, so the cork stopper may be damaged, or the screw screw will be pulled out from the screwing in the middle. There are drawbacks such as a complicated mechanism for conversion. Therefore, first, the applicant of the present patent application has improved such drawbacks, does not require any momentary large force at all, and the operation force from the initial stage to the opening is constant and light, and a weak person easily opens the plug. An air cork stopper (Japanese Patent Application No. 11-206343), such as a wine bottle that can be used, has been proposed.
[0004]
In the air type cork stopper, in order to move the piston rod and push out the air in the cylinder, a pressing force proportional to the area of the piston end surface and related to the piston pushing speed is required. Next, when returning the piston rod, external air must be sucked into the cylinder. However, it is necessary to reduce the piston diameter in order to form the air cork stopper in a compact manner and to reduce the operating force. However, when the piston diameter is reduced, it is technically difficult to provide a piston valve that sucks air into the diameter. Therefore, air is sucked from between the cylinder inner surface and the piston outer surface which are in close contact with each other, and there is a disadvantage that the return operation of the piston rod is light and cannot be performed smoothly. This drawback is a disadvantage in that the same power loss occurs when the piston rod is driven in connection with a driving mechanism such as a motor.
[0005]
The present invention has been made for the purpose of improving a piston rod device that serves as a central mechanism for such an air-type cork stopper.
[0006]
[Means for Solving the Problems]
Forming a shaft portion having an annular bearing surface on the proximal end to the distal end of the piston rod, a mounting hole opened in the front end face of the shaft portion is provided, from the base end side to the shaft portion, O-ring, washer, the elastic piston ring an air passage to become surface side groove channel and back side groove channel communicating with the outer diameter side and inner diameter side and across the front and rear sides, wherein one side open groove outer circumferential surface of the back side is recessed in the annular resilient piston ring The support pistons provided for the purpose are respectively fitted, and the surface side of the support fasteners are tightened with mounting screws that are screwed and fixed to the mounting holes, and the elastic piston ring is allowed to play between the washer and the support lever. It is in a piston rod device with a pneumatic cork stopper such as a wine bottle fitted and deployed.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Wine bottle air sheet Okuhari 4 the second cork 3 pierce through vertically deployed inwardly and communicating with the barrel tip portion 5a of the outer cylinder 5, the required outer tube inner surface 5b of the outer cylinder 5 spaced, vent were provided with check valve 8 the air feeding cylinder 51 constituting the air reservoir 6 with its outer cylindrical inner surface 5b and barrel tip portion inner surface 5a1 away septum at the distal end portion 7a in the middle in 9 is opened and placed in the outer cylinder 5 , and a piston rod 12 having a handle 10 at the outer end and an elastic piston ring 11 at the opposite lower end is fitted inside the air supply cylinder 7. In the air cork stopper 1 such as a wine bottle formed as described above, a shaft portion 14 having an annular bearing surface 14a at the proximal end is formed at the distal end of the piston rod 12 , and an attachment hole opened at the distal end surface of the shaft portion 14 15 is provided, from the base end side to the shaft portion, the O-ring 16, washer 17 , Elastic piston ring 12 and front side groove 18 and back side groove 19 which are air passages which cross the front side and the back side and communicate with the outer diameter side and the inner diameter side, and one side where the outer peripheral surface on the back side is recessed annularly the support provisions 21 respectively fitted equipped for the open groove 20 elastic piston ring 11, fastened by mounting screws 22 to be screwed fixing the surface side of the supporting reserve 21 to the mounting hole 15, a washer 17 A piston rod device with an air cork stopper such as a wine bottle in which an elastic piston ring 12 is loosely fitted between the support metal 21 .
[0008]
【Example】
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a piston bottle device for removing an air cork stopper such as a wine bottle according to the present invention will be described with reference to an air cork stopper 1 such as a wine bottle of the embodiment shown in the drawings. The air feed needle 4 that is pierced through is communicated with the inner cylinder tip 5a of the outer cylinder 5 so as to communicate with the inside, and is separated from the outer cylinder inner surface 5b of the outer cylinder 5 as required. An inner surface 5a1 of the outer cylinder tip portion is separated from an air supply cylinder 7 constituting an air reservoir 6 and a vent hole 9 having a check valve 8 disposed in the middle is opened at the tip portion 7a and disposed in the outer cylinder 5. Then, on the inner side of the air supply cylinder 7, a handle 10 is provided at the outer end and a piston rod 12 having an elastic piston ring 11, for example, as a descending seal member at the opposite lower end is fitted and arranged. 5 is slidably connected to the outer peripheral surface 5c of the outer cylinder. It is made equipped with Rusasae cylinder 13.
[0009]
The required length of the distal end of the piston rod 12 is formed in the shaft portion 14 having an outer diameter thinner than the outer diameter of the piston rod 12, and the outer diameter of the piston rod 12 and the shaft portion 14 at the proximal end of the shaft portion 14. A difference from the outer diameter is formed in the annular bearing surface 14a, and a mounting hole 15 that opens to the distal end surface of the shaft portion 14 is provided in the distal end portion of the piston rod 12, and the shaft portion 14 of the piston rod 12 is provided from the proximal end side. , O-ring 16, washer 17, elastic piston ring 11, front-side groove 18 and back-side groove 19 that are air passages that cross the front and back sides and communicate with the outer diameter side and inner diameter side, and the outer periphery on the back side A support lever 21 provided for the elastic piston ring 11 with a one-side open groove portion 20 whose surface is recessed in an annular shape is fitted, and a mounting screw 22 for screwing and fixing the surface side of the support lever 21 to the mounting hole 15. Tighten with a washer 17 In which the resilient piston ring 11 becomes loosely fitted deployed between the support reserves 21.
[0010]
The elastic piston ring 11 is made of a synthetic rubber material, the outer periphery 11c of the tip thereof is expanded in a triangular cross section, and the annular groove 11d is thinned on the tip surface.
[0011]
Since the air-type cork stopper 1 such as a wine bottle equipped with the piston bottle apparatus of the present invention is configured as described above, a support tube 13 is attached to the mouth 2a of the wine bottle 2 as shown in FIG. Next, the outer cylinder 5 is pushed down to pierce the cork stopper 3 with the air feed needle 4 at the tip, and the air hole 4 a at the tip of the air feed needle 4 is inserted into the wine bottle 2. Deploy. Therefore, when the other hand is put on the handle 10 and the piston rod 12 is reciprocated up and down, the tip of the piston rod 12 is hermetically sealed by the elastic piston ring 11 as a lowering seal member when the piston rod 12 descends. Therefore, the air in the air supply cylinder 7 is sent from the vent hole 9 at the tip to the air reservoir 6. The check valve 8 does not return to the air supply cylinder 7, and the air that is compressed and sent out by the lowering operation of the piston rod 12 enters the wine bottle 2 through the air supply needle 4 that communicates with the air reservoir 6. Be fed. When the piston rod 12 is raised, the air supply cylinder 7 is evacuated, so that the elastic piston ring 11 is bent and the outside air is sucked into the air supply cylinder 7 and the piston rod 12 can be raised without resistance. The air raised in the wine bottle 2 pushes the cork stopper 3 outward. At this time, since the support tube 13 is supported integrally with the wine bottle 2, the cork stopper 3 and the outer tube 5 are integrated into the support tube 13 and are slid upward to be removed and supported even after they are removed. It is supported by the cylinder 13.
[0012]
Since the piston rod device 23 is as described above, the back surface of the washer 17 is in pressure contact with the O-ring 16, so that the inner diameter surface 17 a of the washer 17 is hermetically sealed, and the elastic piston ring 11 is disposed on the bottom surface of the washer 17. 11a is in contact with the inner diameter surface 11b and is positioned in contact with the one-side open groove 20 of the abutment 21. When the piston rod 12 is pushed down and air pressure is applied to the elastic piston ring 11, the bottom surface 11a contacts the washer 17. When the piston rod 12 is raised and the elastic piston ring 11 is lifted and hits the support metal 21, the bottom surface 11 a of the elastic piston ring 11 is separated from the washer 17 and the bottom surface 11 a of the elastic piston ring 11 and the washer. 17, and the outer diameter side of the back surface side groove 19 of the support pad 21 is partitioned by the elastic piston ring 11. The air feed cylinder 7 communicates with the outside air through the base end side chamber 7b. On the other hand, the inner diameter side of the back surface side groove 19 communicates with the inner surface 21a of the support metal 21 and communicates with the surface side groove 18 to provide an elastic piston. The air supply cylinder 7 defined by the ring 11 communicates with the distal end side chamber 7a1. Therefore, an air path communicates with the outside air and the front end side chamber 7a1 of the air supply cylinder 7. Therefore, when the piston rod 12 is pushed down, the elastic piston ring 11 blocks the air path and pushes out the air in the front end side chamber 7a1, and conversely, when the piston rod 12 is pulled up, the outside air can be sucked into the front end side chamber 7a1. is there.
[0013]
The elastic piston ring 11 is made of a synthetic rubber material, and the outer periphery 11c of the tip is expanded in a triangular cross section, and the annular groove 11d is thinned on the tip surface. Therefore, when the piston rod 12 is pushed down, the outer periphery of the tip When the 11c side expands the outer diameter outward and is crimped to the inner diameter surface of the cylinder to eliminate air leakage, and on the contrary, when the piston rod 12 is pulled up, the outer periphery 11c side of the tip decreases the outer diameter inward to reduce the inner diameter of the cylinder. It allows air between the surfaces to pass and reduces friction with the inner surface of the cylinder.
[0014]
【The invention's effect】
Since the piston bottle device for air cork stoppers such as wine bottles of the present invention is as described above, it has a simple structure and has excellent pressure-tightness and pull-out airtightness.
[Brief description of the drawings]
BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a longitudinal sectional view showing a bottle opener operating state by connecting an air cork stopper such as a wine bottle equipped with an air cork stopper piston rod device such as a wine bottle according to the present invention to a wine bottle. FIG.
FIG. 2 is also a partially cut-away partial sectional view showing, in an enlarged manner, a main part of a piston rod device with a pneumatic cork stopper such as a wine bottle according to the present invention.
FIG. 3 is an exploded perspective view of a piston rod device with a pneumatic cork stopper such as a wine bottle according to the present invention.
FIG. 4 is also a perspective view from the rear surface side of a single support pad constituting a piston rod device with an air cork stopper such as a wine bottle of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Air-type cork stopper such as wine bottle 2 Wine bottle 2a Mouth part 3 Cork stopper 4 Air feed needle 4a Air hole 5 Outer cylinder 5a Outer cylinder tip part 5a1 Outer cylinder tip part inner surface 5b Outer cylinder inner diameter surface 5c Outer cylinder outer circumference Surface 6 Air reservoir 7 Air supply cylinder 7a Tip end 7a1 Tip side chamber 7b Base end side chamber 8 Check valve 9 Vent hole 10 Handle 11 Elastic piston ring 11a Bottom surface 11b Inner diameter surface 11c Tip outer periphery 11d Annular groove 12 Piston rod 13 Support cylinder 14 Shaft portion 14a Annular bearing surface 15 Mounting hole 16 O-ring 17 Washer 17a Inner diameter surface 18 Front side groove 19 Rear side groove 20 One side open groove 21 Support metal 21a Inner diameter surface 22 Mounting screw 23 Piston rod device

Claims (1)

ピストンロッド１２の先端に基端に環状支承面１４ａをもつ軸部１４を形成し、その軸部１４の先端面に開口する取付孔１５を設け、前記軸部１４に基端側から、オーリング１６、座金１７、弾性ピストンリング１１および表面側と裏面側に横断して外径側と内径側に連通する空気路となる表面側溝路１８と裏面側溝路１９と、裏面側の外周面が環状に凹陥する片側開放溝部２０を前記弾性ピストンリング１１のために具えた支え当金２１を夫々嵌合し、この支え当金２１の表面側を前記取付孔１５に螺合固着する取付ネジ２２により締付け、座金１７と支え当金２１との間に前記弾性ピストンリング１１を遊嵌配備してなるワインボトル等のエア式コルク栓抜のピストン杆装置。Forming a shaft portion 14 having a proximal end to a distal end of the piston rod 12 of the annular bearing surface 14a, provided with a mounting hole 15 which opens to the distal end surface of the shaft portion 14, from the proximal to the shaft portion 14, O-ring 16 , a washer 17 , an elastic piston ring 11, a front side groove 18 and a back side groove 19 that form air passages that cross the front and back sides and communicate with the outer diameter side and the inner diameter side, and the outer peripheral surface on the back side is annular. to the support reserves 21 respectively fitted equipped for the one side open groove 20 elastic piston ring 11 recessed by mounting screws 22 to be screwed fixing the surface side of the supporting reserve 21 to the mounting hole 15 clamping, the pneumatic cork disconnect the piston rod unit of the wine bottle or the like to be an elastic piston ring 11 loosely fitted deployed between the reserves 21 supporting the washer 17.
JP28965099A 1999-10-12 1999-10-12 Piston dredge device for air cork stoppers such as wine bottles Expired - Fee Related JP4143989B2 (en)

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