JP3073200B1 - Telescopic fittings - Google Patents
Telescopic fittingsInfo
- Publication number
- JP3073200B1 JP3073200B1 JP11146173A JP14617399A JP3073200B1 JP 3073200 B1 JP3073200 B1 JP 3073200B1 JP 11146173 A JP11146173 A JP 11146173A JP 14617399 A JP14617399 A JP 14617399A JP 3073200 B1 JP3073200 B1 JP 3073200B1
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- tube
- flange
- telescopic
- marking
- 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
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
- F16L27/12751—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 the threaded bolt extending longitudinally
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Joints Allowing Movement (AREA)
Abstract
【要約】
【課題】 両端にあるフランジ間の長さが調整可能な従
来の伸縮管継ぎ手では，取り付け時の長さを確認する場
合に，定規などを用いる必要があり，確認作業にわずら
わしさがあった。
【解決手段】 本発明は，目盛り部材４を一方の管１の
フランジ１１に取り付けると共に，指示部材５を他方の
管２のフランジ２１に固定して設けることにより，伸縮
管の取り付け作業を行いながらも簡単に取り付け時の伸
縮管継ぎ手の長さを視認することを図ったものである。With a conventional telescopic pipe joint in which the length between flanges at both ends can be adjusted, it is necessary to use a ruler or the like when checking the length at the time of installation. there were. SOLUTION: The present invention attaches a scale member 4 to a flange 11 of one tube 1 and a pointing member 5 fixedly provided to a flange 21 of the other tube 2 so as to perform a work of attaching a telescopic tube. Also, the length of the telescopic joint at the time of attachment can be easily visually recognized.
Description
【０００１】[0001]
【発明の属する技術分野】本発明は，伸縮管継ぎ手に係
り，詳しくは，両端の長さが調整可能であって，例えば
水道配管などの接続部において取り付け，取り外しが容
易な伸縮管継ぎ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 telescopic pipe joint, and more particularly to a telescopic pipe joint whose length can be adjusted at both ends and which can be easily attached and detached at a connection portion such as a water pipe. It is.
【０００２】[0002]
【従来の技術】例えば水道配管などにおいて，ある配管
と，他の配管を接続するために，継ぎ手が用いられる
が，地震などの影響により，各配管の配置位置がずれる
と，補修のために上記継ぎ手を取り外そうとしても取り
外し難くなったり，もう一度上記継ぎ手を取り付けよう
としても取り付け難くなる。このため，上記継ぎ手に
は，必要に応じてその両端長が調整可能な伸縮管継ぎ手
を用いるのがよい。上記伸縮管継ぎ手に関する技術は，
例えば特開平９−２５７１７８号や特開平９−２９２０
７４号公報などに記載されている。上記伸縮管継ぎ手に
は，２つの管を用いるものや，ベローズを用いるものな
ど多数の種類がある。2. Description of the Related Art For example, in a water pipe, a joint is used to connect a certain pipe to another pipe. It becomes difficult to remove the joint, and it is difficult to attach the joint again. For this reason, it is preferable to use a telescopic pipe joint whose both end lengths can be adjusted as necessary. The technology related to the above expansion joints
For example, JP-A-9-257178 and JP-A-9-2920
No. 74, for example. There are many types of the above-mentioned telescopic joints, such as those using two pipes and those using bellows.
【０００３】[0003]
【発明が解決しようとする課題】ところで，伸縮管継ぎ
手を取り付ける場合には，従来取り付け作業者はネジ締
め状態等を確認しながら，最終的には定規を伸縮管継ぎ
手の両端にあてて，伸縮管継ぎ手の取り付け時の長さの
確認を行っていた。この場合，上記伸縮管継ぎ手の取り
付け時の長さの確認を正確に行うためには，常に定規を
形態せねばならず，また取り付け作業時に，取り付け作
業者が定規と取り付け工具とを数回持ちかえる必要が生
じ，わずらわしい面があった。本発明は，このような従
来の技術における課題を解決するために，伸縮管継ぎ手
を改良し，伸縮管の取り付け作業を行いながらも簡単に
取り付け時の伸縮管継ぎ手の長さを視認することができ
る伸縮管継ぎ手を提供することを目的とするものであ
る。By the way, when attaching a telescopic pipe joint, a conventional installation worker checks a screw tightening state and the like, and finally applies a ruler to both ends of the telescopic pipe joint to extend and contract. The length at the time of fitting was checked. In this case, a ruler must always be formed in order to accurately check the length of the expansion joint at the time of installation, and at the time of the installation work, the installer changes the ruler and the installation tool several times. There was a need, and there was an annoying aspect. In order to solve the problems in the prior art, the present invention has an improved telescopic joint, and allows the length of the telescopic joint at the time of installation to be easily visually recognized while performing the work of installing the telescopic tube. It is an object of the present invention to provide a telescopic joint which can be used.
【０００４】[0004]
【課題を解決するための手段】上記目的を達成するため
に，本発明は，第１管と，該第１管が挿入される第２管
とを具備し，上記第１管の上記第２管への挿入長が調整
可能な伸縮管継ぎ手において，上記第１管の上記第２管
に挿入しない側の端部に取り付けられ，上記第１管の上
記第２管への挿入方向に沿って設けられたマーキングを
備えたマーキング部材と，上記第２管の上記第１管が挿
入される側の端部に固定され，上記マーキング上で上記
第１管の上記第２管への挿入長に対応する位置を指示す
るよう上記マーキング部材が往復動可能に挿嵌される指
示部材とを具備し，上記マーキング部材及び指示部材
が，上記第２管の上記第１管が挿入される側の端部と上
記第１管の上記第２管に挿入しない側の端部とを連結し
上記第２管から上記第１管が抜けるのを防止するための
抜け止め部材をも兼ねることを特徴とする伸縮管継ぎ手
として構成されている。 本発明に係る伸縮管継ぎ手は，
第１管と，第１管が挿入される第２管とを含むが，上記
第１管の上記第２管への挿入方向に沿って設けられたマ
ーキングを備えたマーキング部材が，上記第１管の上記
第２管に挿入しない側の端部に取り付けられ，上記マー
キング部材が往復動可能に挿嵌される指示部材が，上記
マーキング上で上記第１管の上記第２管への挿入長に対
応する位置を指示するよう上記第２管の上記第１管が挿
入される側の端部に固定されるため，上記第１管の上記
第２管への挿入長，ひいては上記伸縮管継ぎ手の取り付
け時の長さを，作業者が簡単に視認することができ，定
規等を携帯する必要もない。しかも，上記第２管の上記
第１管が挿入される側の端部と上記第１管の上記第２管
に挿入しない側の端部とを連結し上記第２管から上記第
１管が抜けるのを防止するための抜け止め部材を上記マ
ーキング部材及び指示部材が兼ねるため，上記抜け止め
部材が必要な場合にも，構成を簡素化することができ
る。In order to achieve the above object, the present invention comprises a first tube and a second tube into which the first tube is inserted, wherein the second tube of the first tube is provided. In a telescopic pipe joint whose insertion length into a pipe is adjustable, the telescopic pipe joint is attached to an end of the first pipe that is not inserted into the second pipe, and extends along a direction of insertion of the first pipe into the second pipe. A marking member provided with a marking provided, fixed to an end of the second pipe on the side where the first pipe is inserted, and the insertion length of the first pipe into the second pipe on the marking is A pointing member in which the marking member is reciprocally inserted to indicate a corresponding position, and wherein the marking member and the pointing member are provided.
But the end of the second tube on the side where the first tube is inserted and the upper end
Connecting the end of the first tube which is not inserted into the second tube.
To prevent the first tube from falling out of the second tube
Telescopic pipe joint characterized by also serving as a retaining member
Is configured as The telescopic pipe joint according to the present invention
A first pipe, but the first pipe and a second pipe to be inserted, the marking device having a marking provided along the insertion direction into the second pipe of the upper Symbol first tube, the first An indication member attached to an end of the one tube that is not inserted into the second tube and into which the marking member is reciprocally inserted is inserted into the second tube of the first tube on the marking. Since the second pipe is fixed to the end on the side where the first pipe is inserted so as to indicate a position corresponding to the length, the insertion length of the first pipe into the second pipe, and thus the telescopic pipe The length of the joint at the time of attachment can be easily visually recognized by an operator, and there is no need to carry a ruler or the like. Moreover, the upper Symbol the first pipe from the second pipe to the first pipe connects the ends of the side not inserted into the second pipe end and the first pipe side which is inserted the second tube Since the marking member and the pointing member also serve as a retaining member for preventing the coming off, the configuration can be simplified even when the retaining member is required.
【０００５】[0005]
【発明の実施の形態】以下，添付図面を参照して，本発
明の実施の形態につき説明し，本発明の理解に供する。
なお，以下の実施の形態は，本発明の具体的な一例であ
って，本発明の技術的範囲を限定する性格のものではな
い。ここに，図１は本発明の一実施の形態に係る伸縮管
継ぎ手の概略構成を示す図である。まず，本発明の一実
施の形態に係る伸縮管継ぎ手は，例えば水道配管などに
あって配管と配管とを接続する場合に用いられるもので
あって，図１に示す如く，第１管１と，該第１管１が挿
入される第２管２とを具備し，上記第１管１の上記第２
管２への挿入長が調整可能な伸縮自在継ぎ手として具体
化される。尚，図１において破線で示されるのは，上記
第１管１の上記第２管２への挿入長が最大のときの上記
第１管１のフランジ１１の位置を示すものである。ま
た，上記伸縮管継ぎ手には，上記第２管２へ挿入した上
記第１管１が抜けないよう，上記第１管のフランジ１１
と上記第２管２のフランジ２１とを連結する抜け止め部
材３が設けられている。そして，上記伸縮管継ぎ手が，
特徴とするところは，上記第１管１のフランジ１１に取
り付けられ，上記第１管１の上記第２管２への挿入方向
に沿ってふられた目盛り（マーキングの一例）４Ａを備
えた目盛り部材（マーキング部材に相当）４と，上記第
２管２のフランジ２１に固定され，上記目盛り４Ａ上の
上記第１管１のフランジ１１と上記第２管２のフランジ
２２との間の長さ（上記第１管の上記第２管への挿入長
に対応する位置）を指示するよう上記目盛り部材４が往
復動可能に挿嵌される指示部材５（５１，５２）とを具
備し，上記目盛り部材４及び上記指示部材５が上記抜け
止め部材３をも兼ねる点である。Embodiments of the present invention will be described below with reference to the accompanying drawings to provide an understanding of the present invention.
The following embodiment is a specific example of the present invention and does not limit the technical scope of the present invention. FIG. 1 is a diagram showing a schematic configuration of a telescopic pipe joint according to an embodiment of the present invention. First, a telescopic pipe joint according to an embodiment of the present invention is used for connecting pipes to pipes in, for example, water pipes, and as shown in FIG. , A second tube 2 into which the first tube 1 is inserted, wherein the second tube 2 of the first tube 1 is provided.
The insertion length into the tube 2 is embodied as an adjustable telescopic joint. The broken line in FIG. 1 indicates the position of the flange 11 of the first tube 1 when the insertion length of the first tube 1 into the second tube 2 is at a maximum. In addition, the first pipe 1 inserted into the second pipe 2 is not attached to the telescopic pipe joint so that the first pipe 1 does not come off.
A retaining member 3 for connecting the flange 21 of the second pipe 2 with the retaining member 3 is provided. And the above telescopic joint is
It is characterized by a scale (an example of marking) 4A attached to the flange 11 of the first tube 1 and provided along the direction in which the first tube 1 is inserted into the second tube 2. a member (corresponding to the marking member) 4, the fixed to the second pipe 2 of the flange 21, the length between the flange 2 second flange 11 and the second pipe 2 of the first pipe 1 on the scale 4A Indicating member 5 (51, 52) into which the scale member 4 is inserted so as to reciprocate so as to indicate the position (the position corresponding to the insertion length of the first tube into the second tube) . When the scale member 4 and the indicating member 5 are removed,
This is a point that also serves as the stop member 3 .
【０００６】上記伸縮管継ぎ手において，上記第１管１
のフランジ１１と，上記第２管２のフランジ２２は，他
の配管との接続のために用いられるものであり，例えば
図１（ｂ）に示す如く，ボルト止め用の孔６と，シール
面７とが設けられており，必要に応じてＯリングを嵌め
るＯリング溝も設けられる。上記第１管１の管部１２
は，上記第２管の管部２３より口径が小さい。上記第１
管１の管部１２は，上記第２管２のフランジ２１側から
挿入される。上記第２管のフランジ２１の内径は，上記
第１管の管部１２の外径よりも僅かに大きいだけであ
る。上記第２管のフランジ２１には，Ｏリング溝２１
１，２１２が設けられており，それぞれのＯリング溝に
は上記第１管１の上記第２管への挿入時に予めＯリング
が嵌められる。上記第１管１が上記第２管２に挿入され
る際には，上記第１管の管部１２の外周面が上記第２管
２のフランジ２１の内周面にあるＯリングに密着するこ
とになり，上記第１管１の上記第２管２への挿入長の変
更があっても，気密性や水密性が保たれることになる。
実際に上記伸縮管継ぎ手を配管と配管との間に取り付け
る場合には，配管と配管との距離よりも，上記フランジ
１１とフランジ２２との距離を小さくして取り付けるこ
とになる。取り付け作業者は，上記フランジ１１，２２
のボルト止め穴６やシール面７を配管のものと合わせな
がら，上記第１管１の上記第２管２の挿入長を調整す
る。上記第１管１の上記第２管２への挿入長の調整がほ
ぼ済めば，上記フランジ１１，２２が配管に対して徐々
にボルト止めされる。このとき，ボルトの締めつけ具合
によっても上記第１管１の上記第２管２への挿入長は多
少変化する。そして，上記フランジ１１，２２に対する
ボルト止めがほぼ均等に行われると，上記伸縮管継ぎ手
の取り付け作業は，確認作業等をのぞいておおよそ完了
である。但し，上記フランジ１１側に取り付けられた配
管と，上記フランジ２２側に取り付けられた配管とが，
地震などにより互いに離れる方向に移動すると，このま
までは，上記第１管１が上記第２管２から抜けかねな
い。水道配管であれば，上記第１管１が上記第２管２か
ら抜けると，水漏れが発生することになる。そこで，上
記第１管１と上記第２管２との相対的な位置関係も固定
しておく必要がある。このために上記抜け止め部材３が
用いられる。上記抜け止め部材３は，上記フランジ１１
に設けられたネジ穴３１にナット３２を用いて着脱自在
に取り付けられるボルト３３と，上記フランジ２１に突
設された突設部材３４と，上記ボルト３４と上記突設部
材３４とを固定するためのナット３５とを含む。上記伸
縮管継ぎ手を取り付ける際には，上記ナット３５を緩め
ておき，上記伸縮管継ぎ手の取り付け作業が完了したと
き，上記ナット３５を締めれば，上記第１管１のフラン
ジ１１と上記第２管２のフランジ２１は連結されること
になり，上記第１管１と上記第２管２との相対的な位置
関係も固定される。In the above-mentioned telescopic joint, the first pipe 1
The flange 11 of the second pipe 2 and the flange 22 of the second pipe 2 are used for connection with other pipes. For example, as shown in FIG. 7 are provided, and an O-ring groove for fitting an O-ring is provided as needed. The pipe section 12 of the first pipe 1
Has a smaller diameter than the tube portion 23 of the second tube. The first
The tube portion 12 of the tube 1 is inserted from the flange 21 side of the second tube 2. The inner diameter of the flange 21 of the second pipe is only slightly larger than the outer diameter of the pipe portion 12 of the first pipe. An O-ring groove 21 is formed in the flange 21 of the second pipe.
An O-ring is fitted in each O-ring groove when the first pipe 1 is inserted into the second pipe. When the first tube 1 is inserted into the second tube 2, the outer peripheral surface of the tube portion 12 of the first tube comes into close contact with the O-ring on the inner peripheral surface of the flange 21 of the second tube 2. That is, even if the insertion length of the first tube 1 into the second tube 2 is changed, airtightness and watertightness are maintained.
In the case where the telescopic pipe joint is actually mounted between the pipes, the distance between the flange 11 and the flange 22 is set smaller than the distance between the pipes. The installation operator is required to install the flanges 11 and 22
The insertion length of the second tube 2 of the first tube 1 is adjusted while aligning the bolt holes 6 and the sealing surface 7 with those of the piping. When the adjustment of the insertion length of the first pipe 1 into the second pipe 2 is substantially completed, the flanges 11 and 22 are gradually bolted to the pipe. At this time, the insertion length of the first tube 1 into the second tube 2 is slightly changed depending on the degree of bolt tightening. When bolted to said flange 11, 22 is carried out substantially uniformly, attachment work of the expansion pipe joint is roughly completed have each of the check work like. However, the pipe attached to the flange 11 side and the pipe attached to the flange 22 side are
If they move away from each other due to an earthquake or the like, the first pipe 1 may come off from the second pipe 2 as it is. In the case of a water pipe, if the first pipe 1 comes off the second pipe 2, water leakage will occur. Therefore, the relative positional relationship between the first tube 1 and the second tube 2 needs to be fixed. For this purpose, the retaining member 3 is used. The retaining member 3 is connected to the flange 11
A bolt 33 that is removably attached to a screw hole 31 provided on the flange 21 using a nut 32, a projecting member 34 projecting from the flange 21, and a fixing member for fixing the bolt 34 and the projecting member 34. And a nut 35. When installing the telescopic pipe joint, the nut 35 is loosened, and when the work of mounting the telescopic pipe joint is completed, the nut 35 is tightened to allow the flange 11 of the first pipe 1 and the second pipe The two flanges 21 are connected, and the relative positional relationship between the first pipe 1 and the second pipe 2 is also fixed.
【０００７】ところで，従来の伸縮管継ぎ手では，上記
配管への取り付け作業の際に，上記伸縮管継ぎ手の長さ
が適正にされたかどうかを作業者が確認するために，上
記フランジ１１と上記フランジ２２との間に定規をあて
るなどしなければ，正確には確認することができなかっ
た。この場合，取り付け作業者は常に定規等を携帯する
必要があるし，取り付け時においても，取り付け工具と
定規とを繰り返し持ち替えて，上記伸縮管継ぎ手を取り
付ける必要が生じ，わずらわしい面があった。本実施の
形態に係る伸縮管継ぎ手では，このわずらわしさを解消
するために，上記第１管１のフランジ１１に目盛り部材
４が取り付けられる。上記目盛り部材４は，上記フラン
ジ１１に設けられたネジ穴４１に嵌合され，ナット４２
を用いて上記フランジ１１に対して着脱可能に固定され
る。この固定時には，上記目盛り部材４は，上記第１管
１の上記第２管２への挿入方向に沿った状態となる。上
記目盛り部材４には，例えば断面Ｄ型状のボルトを用い
ることができ，その平面部分に目盛り４Ａがふられてい
る。また，上記第２管２のフランジ２１側には，上記目
盛り部材４が挿嵌される突設部材５１が突設されてい
る。上記目盛り部材４は，上記突設部材５１に対してナ
ット５２（５２ａ，５２ｂ）を用いて固定される。ナッ
ト５２ａ，５２ｂを緩めることで，上記目盛り部材４
は，上記突設部材５１に対して往復動可能である。そし
て，上記目盛り４Ａは，上記目盛り部材４のボルト部分
のピッチや，突設部材５１の配置位置・大きさ，ナット
５２ａの大きさなどに基づいて，上記突設部材５１に対
して上記目盛り部材４を固定したときに，上記ナット５
２ａの上記フランジ２２側の端部が，上記フランジ１１
と上記フランジ２２との間の長さを指示するよう目盛り
がふられる。即ち，本発明における指示部材５には，上
記突設部材５１，ナット５２が含まれる。上記ナット５
２を緩めておけば，上記第１管１の上記第２管２への挿
入長が変更されれば，それに応じて上記目盛り部材４が
上記突設部材５１に対して挿入方向に沿って移動する。
従って，上記フランジ１１，２２の配管への取り付けが
ほぼ終了した時点で，取り付け作業者が，上記ナット５
２を締めていき，そのときのナット５２ａの上記フラン
ジ２２側の端部を見れば，上記フランジ１１と上記フラ
ンジ２３との間の長さを簡単に把握することができる。
このように，本実施の形態に係る伸縮管継ぎ手では，上
記指示部材５のナット５２ａの端部を見れば，簡単にそ
のときの上記フランジ１１と上記フランジ２２との間の
長さを作業者が把握することができるため，取り付け作
業者は，常時定規等を携帯する必要もなく，取り付け作
業時においても，確認のために定規等と取り付け工具を
何度も持ち替えたりする必要もなくなり，作業を円滑に
行うことができるようになる。尚，上記ナット５２を完
全に締めると，上記目盛り部材４のボルト部分によって
上記フランジ１１と上記フランジ２１との相対的な位置
関係も固定される。即ち，上記目盛り部材４と上記指示
部材５とは上記抜け止め部材３をも兼ねるものである。
また，上記実施の形態では，水道配管を例にしたが，こ
れに限られるものではなく，真空配管など各分野の伸縮
管継ぎ手に本発明は適用可能である。また，上記実施の
形態では，指示部材５を上記第２管２のフランジ２１に
固定して設けたが，これに限られるものではなく，上記
第２管２に対して固定されていればよい。また，上記実
施の形態では，伸縮管継ぎ手の長さを確認するために目
盛り部材４に目盛り４Ａをふったが，等間隔に長さを示
す目盛りを必ず用いる必要はなく，例えば規定の長さに
対応した位置にだけ上記目盛り部材４（マーキング部
材）にマーキングを付けておき，そのマーキングに合う
ように，伸縮管継ぎ手の長さを調整するなど，目盛り以
外の他のマーキング（目印）を用いてもよい。このよう
な伸縮管継ぎ手も本発明における伸縮管継ぎ手の一例で
ある。By the way, in the conventional telescopic joint, in order to check whether or not the length of the telescopic joint has been properly adjusted at the time of mounting work to the pipe, the flange 11 and the flange 11 are connected. Unless a ruler was put between the two, it could not be confirmed accurately. In this case, it is necessary for the installation worker to always carry a ruler or the like, and even at the time of installation, it is necessary to repeatedly change the installation tool and the ruler and attach the above-mentioned telescopic pipe joint, which is troublesome. In the telescopic pipe joint according to the present embodiment, the scale member 4 is attached to the flange 11 of the first pipe 1 in order to eliminate the annoyance. The scale member 4 is fitted into a screw hole 41 provided in the flange 11 and a nut 42
To be detachably fixed to the flange 11. At the time of this fixing, the scale member 4 is in a state along the direction in which the first tube 1 is inserted into the second tube 2. As the scale member 4, for example, a bolt having a D-shaped cross section can be used, and a scale 4A is provided on a plane portion thereof. A projecting member 51 into which the scale member 4 is inserted is provided on the flange 21 side of the second pipe 2. The scale member 4 is fixed to the projecting member 51 using nuts 52 (52a, 52b). By loosening the nuts 52a and 52b, the scale member 4
Can reciprocate with respect to the projecting member 51. The scale 4A is arranged on the scale member 4 based on the pitch of the bolt portion of the scale member 4, the arrangement position and size of the protrusion member 51, the size of the nut 52a, and the like. When the nut 4 is fixed,
2a is connected to the flange 11 side.
A scale is provided to indicate the length between the flange and the flange 22. That is, the pointing member 5 according to the present invention includes the protruding member 51 and the nut 52. Nut 5
If the length of insertion of the first pipe 1 into the second pipe 2 is changed, the scale member 4 is moved along the insertion direction with respect to the projecting member 51 in accordance with the change in the insertion length of the first pipe 1. I do.
Therefore, when the mounting of the flanges 11 and 22 to the pipe is substantially completed, the mounting operator sets the nut 5
By tightening 2 and looking at the end of the nut 52a on the flange 22 side at that time, the length between the flange 11 and the flange 23 can be easily grasped.
As described above, in the telescopic pipe joint according to the present embodiment, if the end of the nut 52a of the indicating member 5 is viewed, the length between the flange 11 and the flange 22 at that time can be easily determined by the operator. The installation worker does not need to carry a ruler or the like at all times, and does not need to change the ruler or the like and the installation tool many times for checking during the installation work. Can be performed smoothly. When the nut 52 is completely tightened, the relative positional relationship between the flange 11 and the flange 21 is fixed by the bolt portion of the scale member 4. That is, the scale member 4 and the indicating member 5 also serve as the retaining member 3 .
Also, in the above embodiment, although the water pipes as an example, not limited thereto, the present invention in expansion pipe joint in various fields such as vacuum pipe is applicable. In the above embodiment, the pointing member 5 is fixed to the flange 21 of the second pipe 2. However, the present invention is not limited to this, and the pointing member 5 may be fixed to the second pipe 2. . Further, in the above embodiment, the scale member 4 is provided with the scale 4A to confirm the length of the telescopic joint, but it is not always necessary to use scales indicating the length at equal intervals. Marking is applied to the scale member 4 (marking member) only at the position corresponding to the above, and other markings (marks) other than the scale are used, such as adjusting the length of the telescopic joint to match the marking. You may. Such a telescopic pipe joint is also an example of the telescopic pipe joint in the present invention.
【０００８】[0008]
【発明の効果】以上説明した通り，本発明に係る伸縮管
継ぎ手は，第１管と，第１管が挿入される第２管とを含
むが，上記第１管の上記第２管への挿入方向に沿って設
けられたマーキングを備えたマーキング部材が，上記第
１管の上記第２管に挿入しない側の端部に取り付けら
れ，上記マーキング部材が往復動可能に挿嵌される指示
部材が，上記マーキング上で上記第１管の上記第２管へ
の挿入長に対応する位置を指示するよう上記第２管の上
記第１管が挿入される側の端部に固定されるため，上記
第１管の上記第２管への挿入長，ひいては上記伸縮管継
ぎ手の取り付け時の長さを，作業者が簡単に視認するこ
とができ，定規等を携帯する必要もない。しかも，上記
第２管の上記第１管が挿入される側の端部と上記第１管
の上記第２管に挿入しない側の端部とを連結し上記第２
管から上記第１管が抜けるのを防止するための抜け止め
部材を上記マーキング部材及び指示部材が兼ねるため，
上記抜け止め部材が必要な場合にも，構成を簡素化する
ことができる。As described in the foregoing, expansion pipe joint according to the present invention includes a first pipe, but the first pipe and a second pipe is inserted, the upper Symbol first pipe above the second tube A marking member provided with a marking provided along the insertion direction of the first tube is attached to an end of the first tube on a side not inserted into the second tube, and the marking member is inserted so as to be reciprocally movable. A member is fixed to the end of the second tube on the side where the first tube is inserted so as to indicate a position corresponding to the insertion length of the first tube into the second tube on the marking. The operator can easily visually recognize the insertion length of the first pipe into the second pipe, and thus the length of the telescopic pipe joint when attached, without having to carry a ruler or the like. Moreover, connecting the ends of the side not inserted into the second pipe end portion on the side where the first pipe of the upper Symbol second pipe is inserted in the first pipe and the second
Since the marking member and the pointing member also serve as a retaining member for preventing the first tube from coming off from the tube,
Even when the above-mentioned retaining member is required, the configuration can be simplified.
【図１】 本発明の一実施の形態に係る伸縮管継ぎ手の
概略構成を示す図。FIG. 1 is a diagram showing a schematic configuration of a telescopic pipe joint according to an embodiment of the present invention.
１…第１管 ２…第２管 ３…抜け部材 ４…目盛り部材（マーキング部材） ４Ａ…目盛り（マーキング） ５…指示部材 １１，２１，２２…フランジ ５１…突設部材 ５２ａ…ナット DESCRIPTION OF SYMBOLS 1 ... 1st pipe 2 ... 2nd pipe 3 ... Removal member 4 ... Scale member (marking member) 4A ... Scale (marking) 5 ... Indicator member 11, 21, 22 ... Flange 51 ... Projection member 52a ... Nut
Claims (1)
とを具備し，上記第１管の上記第２管への挿入長が調整
可能な伸縮管継ぎ手において， 上記第１管の上記第２管に挿入しない側の端部に取り付
けられ，上記第１管の上記第２管への挿入方向に沿って
設けられたマーキングを備えたマーキング部材と， 上記第２管の上記第１管が挿入される側の端部に固定さ
れ，上記マーキング上で上記第１管の上記第２管への挿
入長に対応する位置を指示するよう上記マーキング部材
が往復動可能に挿嵌される指示部材とを具備し，上記マ
ーキング部材及び指示部材が，上記第２管の上記第１管
が挿入される側の端部と上記第１管の上記第２管に挿入
しない側の端部とを連結し上記第２管から上記第１管が
抜けるのを防止するための抜け止め部材をも兼ねること
を特徴とする伸縮管継ぎ手。1. A telescopic pipe joint comprising a first pipe and a second pipe into which the first pipe is inserted, wherein the length of insertion of the first pipe into the second pipe is adjustable. A marking member attached to an end of the one tube that is not inserted into the second tube, the marking member having a marking provided along a direction in which the first tube is inserted into the second tube; The marking member is fixed to the end on the side where the first tube is inserted, and the marking member is reciprocally movable so as to indicate a position corresponding to the insertion length of the first tube into the second tube on the marking. comprising an indication member is fitted, the Ma
The working member and the indicating member are the first tube of the second tube.
Into the second tube of the first tube and the end of the first tube
And the first pipe from the second pipe
Expansion pipe joint, wherein Rukoto also serves as a retaining member for preventing the coming off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11146173A JP3073200B1 (en) | 1999-05-26 | 1999-05-26 | Telescopic fittings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11146173A JP3073200B1 (en) | 1999-05-26 | 1999-05-26 | Telescopic fittings |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP3073200B1 true JP3073200B1 (en) | 2000-08-07 |
| JP2000337571A JP2000337571A (en) | 2000-12-05 |
Family
ID=15401797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11146173A Expired - Lifetime JP3073200B1 (en) | 1999-05-26 | 1999-05-26 | Telescopic fittings |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3073200B1 (en) |
-
1999
- 1999-05-26 JP JP11146173A patent/JP3073200B1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP2000337571A (en) | 2000-12-05 |
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