JPH0640574U - Extendable pipe for piping - Google Patents
Extendable pipe for pipingInfo
- Publication number
- JPH0640574U JPH0640574U JP082333U JP8233392U JPH0640574U JP H0640574 U JPH0640574 U JP H0640574U JP 082333 U JP082333 U JP 082333U JP 8233392 U JP8233392 U JP 8233392U JP H0640574 U JPH0640574 U JP H0640574U
- Authority
- JP
- Japan
- Prior art keywords
- movable
- tube
- peripheral surface
- pipe
- outer peripheral
- 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.)
- Granted
Links
Classifications
-
- 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
- F16L27/00—Adjustable joints, Joints allowing movement
- F16L27/12—Adjustable joints, Joints allowing movement allowing substantial longitudinal adjustment or movement
- F16L27/127—Adjustable joints, Joints allowing movement allowing substantial longitudinal adjustment or movement with means for locking the longitudinal adjustment or movement in the final mounted position
- F16L27/1275—Adjustable joints, Joints allowing movement allowing substantial longitudinal adjustment or movement with means for locking the longitudinal adjustment or movement in the final mounted position by means of at least an external threaded bolt
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Joints Allowing Movement (AREA)
Abstract
(57)【要約】
【目的】 本考案は、伸縮率が大きく、破損を受けにく
い上に、伸縮が円滑で速やかに行われ、隣接する横方向
の伸縮管を破損せず、流動する流体の圧力損失が少な
く、かつ、製壜機などの生産性を向上することができる
伸縮可能な配管用パイプを提供しようとするものであ
る。
【構成】 基準管は両端部の内面にストッパーが装着さ
れ、第1可動管は基準管に挿入される側の先端部外周面
にシーリングが、反対側の外周面とそれより先端側内周
面とにそれぞれストッパーが設けられ、第1可動管と同
じ構成で外径が順次小さくなる複数個の可動管は隣接す
る可動管に順次内挿され、最小径の可動管は内挿側先端
部の外周面と反対側の先端部外周面とにシーリングとね
じとがそれぞれ設けられたことを特徴としている。
(57) [Abstract] [Purpose] The present invention has a large expansion and contraction rate and is not easily damaged. In addition, the expansion and contraction is smooth and quick, and the adjacent lateral expansion and contraction pipes are not damaged. An object of the present invention is to provide a pipe for expansion and contraction, which has little pressure loss and can improve the productivity of bottle making machines and the like. [Structure] The reference tube has stoppers attached to the inner surfaces of both ends thereof, and the first movable tube has a sealing on the outer peripheral surface of the tip end portion on the side to be inserted into the reference tube, and an outer peripheral surface on the opposite side and an inner peripheral surface on the tip end side thereof. A plurality of movable pipes having the same structure as the first movable pipe and having an outer diameter that is gradually reduced are sequentially inserted into the adjacent movable pipes, and the movable pipe with the smallest diameter is located at the tip of the insertion side. It is characterized in that a sealing and a screw are respectively provided on the outer peripheral surface and the outer peripheral surface of the tip portion on the opposite side.
Description
【0001】[0001]
本考案は伸縮可能な配管用パイプに関し、さらに詳しくは、製壜機のプランジ ャーシリンダーや相対的に移動する2つの部品同志の連結に用いられる伸縮可能 な配管用パイプに関する。 The present invention relates to a stretchable pipe for pipes, and more particularly, to a stretchable pipe for use in connecting a plunger cylinder of a bottle making machine and two relatively moving parts.
【0002】[0002]
高さや径の異なる各種の壜を製造する場合、製壜機を構成するプランジャー( PL)シリンダーの配管には、肉薄のステンレス製の溶接管を波形に加工した後 、その外側にステンレス製のブレードを被覆したフレキシブルチューブが、ケー ス内に複数個収容した状態で用いられていた。 When manufacturing various bottles with different heights and diameters, the plunger (PL) cylinders that make up the bottle making machine are made of corrugated thin stainless welded pipe A flexible tube coated with a blade was used while being housed in multiple cases.
【0003】[0003]
また、ケース内に収容されている複数個のフレキシブルチューブは、内部の空 気圧の変動により横方向にも移動して互いに叩き合いをするため、この叩き合い によっても破損が引き起こされていた。 しかも、従来のフレキシブルチューブは、ステンレス製の肉薄管の屈曲部に亀 裂が生じても、その外側がステンレス製のブレードによって被覆されているため 、亀裂の発見が遅れるとともに、亀裂個所を特定することが困難であった。 Further, the plurality of flexible tubes housed in the case also move laterally due to fluctuations in the atmospheric pressure and strike against each other, which also causes damage. Moreover, in the conventional flexible tube, even if a crack occurs in the bent part of a thin stainless steel tube, the outer side of the flexible tube is covered with a stainless steel blade, which delays the discovery of cracks and identifies the crack location. Was difficult.
【0004】 また、ステンレス製の肉薄管の外側がブレードで被覆されているために、当該 管を屈曲させるには大きな力がいる。このためPLシリンダーを上下方向に移動 させるのに大きな力を要し、このため調整に時間がかかり製壜機の型替え時間を 短くすることができなかった。 その上、フレキシブルチューブは、内面が平滑でない上に外表面がステンレス 製のブレードによって被覆されていて、同一の外径に対して内径の寸法が小さく なるため、内部を流れる流体の圧力損失が大きくなり、流体を作動させるに要す る圧力を高くしなければならなかった。さりとて、内径を大きくしようとすると 、フレキシブルチューブの外径が大きくなるため、コストが割高となり、取り扱 いに手数がかかる上に、フレキシブルチューブを収容するケースも大きくしなけ ればならなくなる。Further, since a thin tube made of stainless steel is covered with a blade on the outside, a large force is required to bend the tube. For this reason, a large force was required to move the PL cylinder in the vertical direction, which required time for adjustment and shortened the time for changing the mold of the bottle making machine. In addition, the flexible tube has a non-smooth inner surface, and the outer surface is covered by a stainless steel blade, which reduces the inner diameter for the same outer diameter, resulting in a large pressure loss of the fluid flowing inside. Therefore, the pressure required to operate the fluid had to be increased. If the inner diameter is increased, the outer diameter of the flexible tube becomes larger, resulting in higher cost, more labor to handle, and a larger case for accommodating the flexible tube.
【0005】 本考案はこれらの事情に鑑みてなされたもので、従来のフレキシブルチューブ に比べて伸縮率が大きく、破損を受けにくい上に、伸縮時の移動が円滑で速やか に行われ、隣接する伸縮管を破損することがなく、作動時の流体圧力の損失を少 なくし、かつ、製壜機などの生産性を向上することができる伸縮可能な配管用パ イプの提供を目的としたものである。The present invention has been made in view of these circumstances, and has a larger expansion and contraction rate than a conventional flexible tube, is less susceptible to damage, and is smoothly and swiftly moved during expansion and contraction. The purpose of the present invention is to provide an expandable pipe pipe that does not damage the expansion pipe, reduces the loss of fluid pressure during operation, and improves the productivity of bottle manufacturing machines. is there.
【0006】[0006]
本考案は、前記目的を達成すべくなされたもので、基準管は両端開口部の内周 面に、リング状に突出するストッパーが装着され、基準管に挿入される第1可動 管は、内挿側の先端部外周面に基準管の内周面と接触するシーリングが装着され 、第1可動管の反対側の外周面とそれより先端側の内周面には、基準管の端面に 当接するストッパーと、内挿される第2可動管の先端側の外側突出部と当接する ストッパーとがそれぞれ設けられ、第1可動管と同じ構成を有し、外径が順次小 さくなる複数個の可動管が、隣接するそれらより内径の少し大きな可動管内に順 次挿入され、基準管から一番遠い最小径の可動管は、内挿される側の先端部外周 面にシーリングが装着されるとともに、反対側の先端部に結合手段が設けられて いることを特徴とする伸縮可能な配管用パイプを考案したものである。 The present invention has been made to achieve the above-mentioned object. The reference tube is provided with a ring-shaped stopper on the inner peripheral surface of the opening at both ends, and the first movable tube inserted into the reference tube is The outer peripheral surface of the tip end on the insertion side is fitted with a ceiling that contacts the inner peripheral surface of the reference tube, and the outer peripheral surface on the opposite side of the first movable tube and the inner peripheral surface on the distal end side contact the end surface of the reference tube. A plurality of movable stoppers, each of which has a contacting stopper and a stopper that contacts an outer protruding portion on the distal end side of the second movable tube to be inserted, has the same configuration as the first movable tube and whose outer diameter is gradually reduced. The pipes are sequentially inserted into the movable pipes whose inner diameters are slightly larger than those of the adjacent pipes, and the movable pipe with the smallest diameter farthest from the reference pipe is installed with the sealing on the outer peripheral surface of the tip end on the inserted side and the opposite. It is characterized in that the connecting means is provided at the tip of the side It is obtained by devising a stretchable plumbing pipes.
【0007】[0007]
2つの部材に結合された伸縮状態の配管用パイプの両端部に引っ張り方向の力 が作用すると、長さ方向両端部の最小径の可動管が、その先端部外周面のシーリ ングを隣接する第2小径の可動管の内周面に接触させた状態で摺動し、作用した 力の方向に引き出される。引き出された最小径の可動管の外側突出部が第2小径 の可動管の内周面側のストッパーに当接すると、第2小径の可動管が最小径の可 動管とともに作用した力の方向に摺動される。以下同様にして順次径の大きな可 動管が引き出され、配管用パイプは伸張された状態となる。 When a tensile force is applied to both ends of a pipe for expansion and contraction that is connected to two members, the movable pipes with the smallest diameters at both ends in the length direction adjoin the sealing on the outer peripheral surface of the tip. 2 Sliding in contact with the inner peripheral surface of a small-diameter movable pipe, it is pulled out in the direction of the acting force. When the outer protruding portion of the drawn-out minimum-diameter movable pipe comes into contact with the stopper on the inner peripheral surface side of the second small-diameter movable pipe, the direction of the force exerted by the second small-diameter movable pipe together with the minimum-diameter movable pipe. Be slid on. In the same manner, movable pipes with a large diameter are sequentially drawn out, and the pipes for pipes are stretched.
【0008】 これに対し、伸張された状態の配管用パイプの両端部に圧縮方向の力が作用す ると、最小径の可動管が最初に第2小径の可動管内に収納され、最小径の可動管 に結合された部材が第2小径の両端に当接した状態で収納を停止される。次いで 、前記結合手段により結合された部材により、第2小径の可動管がそれより径の 大きな可動管の方に押圧されると、第2小径の可動管は、その外周面側のストッ パーがそれより径の大きな隣接可動管の端面に当接する位置まで、最小径の可動 管とともに、隣接可動管内に収納される。以下同様にして収納が継続され、最終 的には、各可動管は重合された状態で基準管内に収納され、配管用パイプの全長 は、一番短縮された長さとなる。On the other hand, when a force in the compression direction is applied to both ends of the pipe for piping in the stretched state, the movable pipe having the smallest diameter is first accommodated in the movable pipe having the second small diameter, and the movable pipe having the smallest diameter is stored. The storage is stopped in a state where the members connected to the movable pipe are in contact with both ends of the second small diameter. Next, when the second small diameter movable pipe is pressed toward the large diameter movable pipe by the member connected by the connecting means, the second small diameter movable pipe has a stopper on the outer peripheral surface side. It is housed in the adjacent movable pipe together with the movable pipe having the smallest diameter up to a position where it comes into contact with the end face of the adjacent movable pipe having a larger diameter. The storage is continued in the same manner thereafter, and finally each movable pipe is stored in the reference pipe in a superposed state, and the total length of the pipe for piping is the shortest length.
【0009】[0009]
以下、本考案に係る実施例を図面に基づいて説明する。 図1ないし図4は本考案の一実施例を示したもので、伸縮可能な配管用パイプ は、一番外径の大きな基準管1と、外径が順次小さくなる複数組、例えば、2組 の可動管2,3とにより、主として構成されている。 Hereinafter, embodiments according to the present invention will be described with reference to the drawings. 1 to 4 show an embodiment of the present invention. An expandable pipe is a reference pipe 1 having the largest outer diameter, and a plurality of sets, for example, two sets, each having an outer diameter gradually decreasing. Mainly composed of the movable tubes 2 and 3.
【0010】 基準管1は、両端開口部の内周面に一定幅の円周溝1aが形成されており、こ の円周溝1aには、C形リングのようなリング状のストッパー4が内周面から内 側に突出するよう着脱可能に弾性装着されている。1bは基準管1の円周溝1a と対応する外周面の部分に形成されたリング状の突出部で、この突出部1bは基 準管1の厚さを薄くするのに役立っている。The reference tube 1 has a circumferential groove 1a having a constant width formed on the inner peripheral surfaces of the openings at both ends thereof. The circumferential groove 1a is provided with a ring-shaped stopper 4 such as a C-shaped ring. It is elastically attached so that it can be detached so as to project inward from the inner peripheral surface. Reference numeral 1b is a ring-shaped protrusion formed on a portion of the outer peripheral surface corresponding to the circumferential groove 1a of the reference tube 1, and the protrusion 1b serves to reduce the thickness of the reference tube 1.
【0011】 基準管1の両端開口部には、外径が基準管1の内径より少し小さい第1可動管 2,2が内挿されている。第1可動管2は、それぞれ内挿側の先端部外周面に、 円周溝2bを備えたリング状の突出部2aが形成されている。この円周溝2bに は、基準管1の内周面に接触するシーリング5が装着されていて、基準管1と第 1可動管2との間の気密が保たれている。First movable tubes 2 and 2 each having an outer diameter slightly smaller than an inner diameter of the reference tube 1 are inserted into openings at both ends of the reference tube 1. Each of the first movable tubes 2 has a ring-shaped protruding portion 2a having a circumferential groove 2b formed on the outer peripheral surface of the tip end portion on the insertion side. A sealing member 5 that comes into contact with the inner peripheral surface of the reference tube 1 is attached to the circumferential groove 2b, and the airtightness between the reference tube 1 and the first movable tube 2 is maintained.
【0012】 これに対し、第1可動管2の反対側先端部には、外周面から突出するリング状 の突出部2cに形成された円周溝2dに、基準管1の端面と接触するC形リング のようなリング状のストッパー6が着脱可能に弾性装着されている。第1可動管 2は、さらに先端側の内周面に形成された円周溝2eに前記と同じ構成のストッ パー7が弾性装着されている。外周面側のストッパー6が取り付けられる突出部 2cは、先端側の高さが基準管1側より少し低くなっていて、外側のストッパー 6の着脱が容易に行えるようになっている。また、内周面側のストッパー7が取 り付けられ円周溝2eは、先端側の深さが基準管1側より少し浅くなっていて第 1可動管2の先端側の厚さを薄くすることなく、内側のストッパー7の着脱が容 易に行えるようになっている。On the other hand, at the opposite end of the first movable tube 2, the circumferential groove 2d formed in the ring-shaped protrusion 2c protruding from the outer peripheral surface is in contact with the end surface of the reference tube 1 C. A ring-shaped stopper 6 such as a shape ring is detachably and elastically mounted. In the first movable tube 2, a stopper 7 having the same structure as the above is elastically mounted in a circumferential groove 2e formed on the inner peripheral surface on the tip side. The protrusion 2c to which the stopper 6 on the outer peripheral surface side is attached has a height on the tip side slightly lower than that on the reference tube 1 side, so that the outer stopper 6 can be easily attached and detached. Further, the stopper 7 on the inner peripheral surface side is attached, and the depth of the tip end side of the circumferential groove 2e is slightly shallower than that of the reference tube 1 side so that the thickness of the tip end side of the first movable tube 2 is reduced. The inner stopper 7 can be easily attached and detached without any need.
【0013】 第1可動管2の先端側には、外径が第1可動管2の内径より少し小さな第2可 動管3が内挿されている。第2可動管3は、第1可動管2に内挿される側の先端 部外周面に、第1可動管2の内周面側のストッパー7と当接し得るリング状の突 出部3aが形成されている。この突出部3aに設けられた円周溝3bには、第1 可動管2の内周面と接触するシーリング8が装着されている。 また、第2可動管3の反対側先端部には、外周面に結合手段であるねじ3cが 刻設されており、伸縮可能な配管用パイプの両端は、前記ねじ3cに螺合される エルボのような接続部材9,9を介して、相対的に移動するか、距離を変える2 つの部材に接続されている。結合手段はねじの他、フランジで結合、バイオネッ ト、カプラーなどでもよい。A second movable tube 3 having an outer diameter slightly smaller than the inner diameter of the first movable tube 2 is inserted at the tip end side of the first movable tube 2. The second movable tube 3 has a ring-shaped protrusion 3a formed on the outer peripheral surface of the distal end on the side inserted into the first movable tube 2, which can come into contact with the stopper 7 on the inner peripheral surface side of the first movable tube 2. Has been done. In the circumferential groove 3b provided in the projecting portion 3a, a sealing 8 that is in contact with the inner peripheral surface of the first movable tube 2 is mounted. Further, a screw 3c as a coupling means is engraved on the outer peripheral surface at the tip end on the opposite side of the second movable pipe 3, and both ends of the expandable pipe are screwed to the screw 3c. It is connected to two members that move relative to each other or change the distance via the connecting members 9, 9. The connecting means may be a screw, a flange, a bayonet, a coupler, or the like.
【0014】 上記実施例では、基準管1とねじ3cが刻設された最小径の可動管である第2 可動管3との間に、1つの第1可動管2が伸縮可能に結合される場合について説 明したが、基準管1と最小径の可動管との間に、第1可動管2と構成が同じで、 外径が順次小さくなる複数個の可動管を挿入してもよい。この場合、挿入される 可動管の数を多くすると、伸張可能な距離だけでなく伸縮率も大きくすることが できる。In the above embodiment, one first movable tube 2 is extendably connected between the reference tube 1 and the second movable tube 3 which is the minimum diameter movable tube in which the screw 3c is engraved. Although the case has been described, a plurality of movable tubes having the same structure as the first movable tube 2 and having a gradually decreasing outer diameter may be inserted between the reference tube 1 and the movable tube having the smallest diameter. In this case, if the number of movable tubes to be inserted is increased, not only the extendable distance but also the expansion / contraction rate can be increased.
【0015】 この実施例の構成の場合、伸張状態(図1参照)にある配管用パイプの両端部 に押圧方向の力が作用すると、最小径の第2可動管3は、それぞれ第1可動管2 の内周面に当接するシーリング8の部分で滑りを起こして第1可動管2内に収納 され、図2に示す状態となる。この状態では、第2可動管3に接続された接続部 材9が第1可動管2の端面に当接しているため、さらに押圧方向の力が作用する と、第1可動管2は、基準管1の内周面に当接するシーリング5の部分で滑りを 起こし、第2可動管3とともに基準管1内に移動される。この移動は、第1可動 管2の外側のストッパー6が基準管1の端面に当接したときに停止されて、図3 に示す収縮状態となる。In the case of the configuration of this embodiment, when a force in the pressing direction acts on both ends of the pipe for piping in the stretched state (see FIG. 1), the second movable pipes 3 having the smallest diameters are respectively moved to the first movable pipes. The portion of the sealing 8 that abuts on the inner peripheral surface of 2 slides and is housed in the first movable tube 2 to be in the state shown in FIG. In this state, the connecting member 9 connected to the second movable tube 3 is in contact with the end surface of the first movable tube 2, so that when a force in the pressing direction is further applied, the first movable tube 2 will move to the reference position. Sliding occurs at the portion of the sealing 5 that abuts the inner peripheral surface of the tube 1, and is moved into the reference tube 1 together with the second movable tube 3. This movement is stopped when the stopper 6 on the outer side of the first movable tube 2 comes into contact with the end surface of the reference tube 1, and the contracted state shown in FIG.
【0016】 また、収縮状態(図3参照)にある配管用パイプの両端部に引っ張り方向の力 が作用すると、第2可動管3は、第1可動管2の内周面に当接するシーリング8 の部分で滑りを起こし、第1可動管2内から引き出されて図4に示す状態となる 。この状態では、第2可動管3のリング状の突出部3aの端面が第1可動管2の 内側のストッパー7と当接しているため、さらに引っ張り方向の力が作用すると 、第1可動管2は、基準管1の内周面に当接するシーリング5の部分で滑りを起 こし、第2可動管3とともに基準管1から引き出される。この引き出しは、第1 可動管2の内挿側突出部2aの端面が基準管1のストッパー4と当接したときに 停止され、図1に示す伸張状態となる。Further, when a force in the pulling direction acts on both ends of the pipe for piping in the contracted state (see FIG. 3), the second movable pipe 3 comes into contact with the inner peripheral surface of the first movable pipe 2 and the sealing 8 4 causes a slip, and is pulled out from the inside of the first movable tube 2 to be in the state shown in FIG. In this state, since the end surface of the ring-shaped protruding portion 3a of the second movable tube 3 is in contact with the stopper 7 inside the first movable tube 2, when a force in the pulling direction further acts, the first movable tube 2 Slides at the portion of the sealing 5 that abuts the inner peripheral surface of the reference tube 1, and is pulled out from the reference tube 1 together with the second movable tube 3. This withdrawal is stopped when the end surface of the insertion-side protruding portion 2a of the first movable tube 2 contacts the stopper 4 of the reference tube 1, and the extended state shown in FIG. 1 is obtained.
【0017】 この構成を有する配管用パイプでは、パイプの伸縮は基準管1と第1可動管2 、および第1可動管2と第2可動管3との間の滑りによって行われるため、従来 のフレキシブルチューブの場合に比べて伸縮率を大きくできる他、基準管1や各 可動管2,3の受ける応力を少なくし、破損を起こりにくいようにすることがで きる。 また、配管用パイプの表面は、フレキシブルチューブのようにブレードによっ て被覆されていないため、パイプの外径は内径に比べて割合小さくすることがで き、パイプが破損された場合には、破損によるエア洩れを早期に発見できるだけ でなく、破損個所を容易に特定することができる。In the pipe for piping having this configuration, the expansion and contraction of the pipe is performed by sliding between the reference pipe 1 and the first movable pipe 2 and between the first movable pipe 2 and the second movable pipe 3, so The expansion and contraction rate can be increased as compared with the case of the flexible tube, and the stress applied to the reference tube 1 and each of the movable tubes 2 and 3 can be reduced so that damage is less likely to occur. Also, since the surface of the pipe for piping is not covered by the blade like the flexible tube, the outer diameter of the pipe can be made smaller than the inner diameter, and when the pipe is damaged, Not only can air leaks due to breakage be detected early, but the location of breakage can be easily identified.
【0018】 また、伸縮方向は基準管1の長さ方向に決められていて曲げ応力が作用しない ため、耐久性が良くなるとともに管内を流れるエア等の圧力が変動したときにも 横方向に移動しないで、隣接するパイプ同志の叩き合いを防止して互いに傷付け 合わないようにすることができる。 その上、配管用パイプの内面は従来のフレキシブルチューブの場合に比べて平 滑で、内部を流れるエアの圧力損失が少ない上に、伸縮が滑りによって円滑に、 かつ、速やかに行われるため、配管用パイプが取り付けられる製壜機などの生産 性を向上することができる。Further, since the expansion and contraction direction is determined in the length direction of the reference tube 1 and bending stress does not act, durability is improved and the tube moves laterally even when the pressure of air or the like flowing in the tube fluctuates. Instead, the adjacent pipes can be prevented from hitting each other so that they do not damage each other. In addition, the inner surface of the pipe for piping is smoother than that of the conventional flexible tube, the pressure loss of the air flowing inside is small, and the expansion and contraction is performed smoothly and quickly by sliding, so It is possible to improve the productivity of bottle making machines to which pipes for manufacturing are attached.
【0019】[0019]
本考案は、基準管の両端開口部の内面にストッパーが装着され、基準管内に外 径が順次小さくなる複数個の可動管が挿入され、各可動管は内挿側の外周面にシ ーリングが装着されるとともに、反対側の先端部外周面とそれより先端側の内周 面にそれぞれストッパーが設けられ、最小径の可動管は内挿側先端部にシーリン グが、反対側の先端部外周面にねじが設けられているため、配管用パイプは従来 のフレキシブルチューブの場合に比べて伸縮率が大きく、破損が受けにくくなる 上に、外径を小さくでき、破損時のエア洩れの早期発見と破損個所の特定が容易 となる。 また、伸縮は一方向に行われ、曲げ応力を受けないため、耐久性が良く、エア 等の圧力変動によるパイプ同志の叩き合いを防止することができる。 その上、配管用パイプは、内面が平滑で、伸縮が滑りによって円滑に、かつ、 速やかに行われるため、パイプが接続された製壜機などの生産性を向上すること ができる。 According to the present invention, stoppers are attached to the inner surfaces of the openings at both ends of the reference tube, and a plurality of movable tubes having smaller outer diameters are inserted into the reference tube. Each movable tube has a sealing on the outer peripheral surface on the insertion side. When mounted, stoppers are provided on the outer peripheral surface of the tip on the opposite side and the inner peripheral surface on the tip side of the tip, and the movable tube with the smallest diameter has the sealing on the tip of the insertion side and the outer circumference of the tip on the opposite side. Since the surface is provided with screws, the piping pipe has a larger expansion and contraction rate than conventional flexible tubes, making it less susceptible to damage and reducing the outer diameter, allowing early detection of air leakage when damage occurs. Therefore, it becomes easy to identify the damaged part. Further, since the expansion and contraction is performed in one direction and is not subjected to bending stress, the durability is good and it is possible to prevent the pipes from hitting each other due to pressure fluctuations such as air. In addition, since the inner surface of the pipe for piping is smooth and the expansion and contraction of the pipe can be performed smoothly and quickly, it is possible to improve the productivity of the bottle making machine to which the pipe is connected.
【図面の簡単な説明】[Brief description of drawings]
【図1】本考案の一実施例を示す伸張状態の断面側面図
である。FIG. 1 is a cross-sectional side view in an expanded state showing an embodiment of the present invention.
【図2】伸張状態から収縮状態への中間状態を示す断面
側面図である。FIG. 2 is a sectional side view showing an intermediate state from a stretched state to a contracted state.
【図3】本考案の収縮状態の態様を示す断面側面図であ
る。FIG. 3 is a sectional side view showing a contracted state of the present invention.
【図4】収縮状態から伸張状態への中間状態を示す断面
側面図である。FIG. 4 is a sectional side view showing an intermediate state from a contracted state to an extended state.
1 基準管 2 第1可動管 2a (外側)突出部 3 第2可動管 3a (外側)突出部 3c ねじ 4,6,7 ストッパー 5,8 シーリング 1 Reference pipe 2 1st movable pipe 2a (outside) protrusion 3 2nd movable pipe 3a (outside) protrusion 3c Screw 4,6,7 Stopper 5,8 Sealing
───────────────────────────────────────────────────── フロントページの続き (72)考案者 中磯 勝 兵庫県西宮市浜松原町2番21号 山村硝子 株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Masaru Nakaiso Yamamura Glass Co., Ltd. 2-21 Hamamatsubaracho, Nishinomiya City, Hyogo Prefecture
Claims (1)
状に突出するストッパーが装着され、 基準管に挿入される第1可動管は、内挿側の先端部外周
面に基準管の内周面と接触するシーリングが装着され、 第1可動管の反対側の外周面とそれより先端側の内周面
には、基準管の端面に当接するストッパーと、内挿され
る第2可動管の先端側の外側突出部と当接するストッパ
ーとがそれぞれ設けられ、 第1可動管と同じ構成を有し、外径が順次小さくなる複
数個の可動管が、隣接するそれらより内径の少し大きな
可動管内に順次挿入され、 基準管から一番遠い最小径の可動管は、内挿される側の
先端部外周面にシーリングが装着されるとともに、反対
側の先端部に結合手段が設けられていることを特徴とす
る伸縮可能な配管用パイプ。1. The reference tube has a stopper protruding in a ring shape attached to the inner peripheral surface of both end openings, and the first movable tube inserted into the reference tube has a reference tube on the outer peripheral surface of the tip end on the insertion side. A sealing member that comes into contact with the inner peripheral surface of the first movable tube is mounted, and a stopper that contacts the end surface of the reference tube and a second movable member that is inserted into the outer peripheral surface on the opposite side of the first movable tube and the inner peripheral surface on the tip side thereof. A plurality of movable pipes each having a stopper that comes into contact with the outer protruding portion on the tip end side of the pipe and having the same configuration as the first movable pipe, and the outer diameter of which gradually decreases, have an inner diameter slightly larger than those of adjacent ones. The movable tube with the smallest diameter farthest from the reference tube is sequentially inserted into the movable tube, and the sealing is attached to the outer peripheral surface of the tip end on the side to be inserted, and the connecting means is provided on the tip end on the opposite side. An expandable pipe for piping.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1992082333U JP2591664Y2 (en) | 1992-11-04 | 1992-11-04 | Telescopic plumbing pipe |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1992082333U JP2591664Y2 (en) | 1992-11-04 | 1992-11-04 | Telescopic plumbing pipe |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0640574U true JPH0640574U (en) | 1994-05-31 |
JP2591664Y2 JP2591664Y2 (en) | 1999-03-10 |
Family
ID=13771639
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1992082333U Expired - Fee Related JP2591664Y2 (en) | 1992-11-04 | 1992-11-04 | Telescopic plumbing pipe |
Country Status (1)
Country | Link |
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JP (1) | JP2591664Y2 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH1019433A (en) * | 1996-07-03 | 1998-01-23 | Marubeni Setsubi Kk | Telescopic built-up tube for fluid and snow falling machine |
JP2011055933A (en) * | 2009-09-08 | 2011-03-24 | Sharp Corp | Vacuum cleaner |
JP2018054035A (en) * | 2016-09-29 | 2018-04-05 | 日本ヴィクトリック株式会社 | Telescopic pipe joint structure |
KR101878531B1 (en) * | 2011-07-06 | 2018-07-13 | 니혼 빅토릭 가부시끼가이샤 | Expansion/contraction flexible joint |
JP2020008252A (en) * | 2018-07-11 | 2020-01-16 | エバック株式会社 | Drain pipe for air conditioner |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10731782B2 (en) * | 2016-12-22 | 2020-08-04 | Accessible Systems, Inc. | Adjustable pipe |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5691981U (en) * | 1979-12-19 | 1981-07-22 |
-
1992
- 1992-11-04 JP JP1992082333U patent/JP2591664Y2/en not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5691981U (en) * | 1979-12-19 | 1981-07-22 |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH1019433A (en) * | 1996-07-03 | 1998-01-23 | Marubeni Setsubi Kk | Telescopic built-up tube for fluid and snow falling machine |
JP2011055933A (en) * | 2009-09-08 | 2011-03-24 | Sharp Corp | Vacuum cleaner |
KR101878531B1 (en) * | 2011-07-06 | 2018-07-13 | 니혼 빅토릭 가부시끼가이샤 | Expansion/contraction flexible joint |
JP2018054035A (en) * | 2016-09-29 | 2018-04-05 | 日本ヴィクトリック株式会社 | Telescopic pipe joint structure |
JP2020008252A (en) * | 2018-07-11 | 2020-01-16 | エバック株式会社 | Drain pipe for air conditioner |
Also Published As
Publication number | Publication date |
---|---|
JP2591664Y2 (en) | 1999-03-10 |
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