JP3475040B2 - Pipe fittings - Google Patents
Pipe fittingsInfo
- Publication number
- JP3475040B2 JP3475040B2 JP08459397A JP8459397A JP3475040B2 JP 3475040 B2 JP3475040 B2 JP 3475040B2 JP 08459397 A JP08459397 A JP 08459397A JP 8459397 A JP8459397 A JP 8459397A JP 3475040 B2 JP3475040 B2 JP 3475040B2
- Authority
- JP
- Japan
- Prior art keywords
- pipe joint
- pipe
- sleeve member
- screw forming
- nut member
- 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 - Fee Related
Links
Landscapes
- Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
- Joints With Sleeves (AREA)
Description
【発明の詳細な説明】
【０００１】
【発明の属する技術分野】本発明は、油圧ショベル等に
おいて配管接続用に用いられる管継手の技術分野に属す
るものである。
【０００２】
【従来の技術】一般に、この種管継手を用いて、一方の
管と、他方の管、他方の管継手または機器等の他方部材
とを接続するにあたり、該管継手を、一端部が一方の管
の端部に溶着されるスリーブ部材と、該スリーブ部材の
他端部に抜け止め状に外嵌し、かつ他方部材側に螺合す
る螺子形成部を備えたナット部材とを用いて構成したも
のがある。そしてこの様にスリーブ部材とナット部材と
から構成される管継手として、従来、図３に示す如きも
のが知られているが、このものにおいて、ナット部材９
の螺子形成部９ａは、内周側に雌螺子９ｂが刻設され、
また外周側にスパナ等の工具を係止するための係止部
（例えば、四角形、六角形等の面取り部）９ｃが形成さ
れている。
【０００３】
【発明が解決しようとする課題】ところで、前記従来の
管継手を狭いスペースで組付けるような場合、係止部９
ｃが形成される螺子形成部９ａの外径寸法が大きいと工
具による緊締作業が困難になるため、螺子形成部９ａの
外径寸法がなるべく小さいもの、例えば前記一方の管１
の外径寸法と殆ど等しいか僅かに大きい外径寸法を有す
るナット部材９を採用することがある。そしてこの場
合、スリーブ部材１０は、前述したように一端部が一方
の管１の端部に溶着１０ａされ、他端部が該一方の管１
と略等しい外径寸法のナット部材９の内周側に嵌合され
るから、他端部側が一端部側よりも細径となった段違い
形状のものとなる。このため、管継手の構造が複雑とな
って、コストダウンの妨げになるという問題がある。さ
らに、前記螺子形成部９ａの内周側の雌螺子９ｂに螺合
する他方部材１１の内径寸法およびスリーブ部材１０の
他端部の内径寸法は、一方の管１の内径寸法（呼び径）
よりも細径となるから、該細径の部位において管を流れ
る流体の圧力損失が生じるという問題もあり、ここに本
発明が解決しようとする課題があった。また、一方の管
１が、図３に示す如く屈曲部１ａを有するものである場
合、管端部とスリーブ部材１０とを溶接するにあたり、
該溶接部位１０ａと屈曲部１ａとのあいだの直線部１ｂ
は所定の最低長さＬが必要となる。ところが、前記従来
の管継手は、前述したようにスリーブ部材１０が段差形
状で、細径となったスリーブ部材他端部側にナット部材
９が外嵌しているものであるから、軸方向の長さがどう
しても長くなり、このため、軸方向に狭いスペースでは
管端部とスリーブ部材１０との溶接が困難になるという
解決すべき課題もあった。
【０００４】
【課題を解決するための手段】本発明は、上記の如き実
情に鑑み、これらの課題を解決することを目的として創
作されたものであって、一方の管を、他方の管、他方の
管継手または機器等の他方部材と接続するための管継手
であって、該管継手を、一端部が一方の管の端部に溶着
される筒状のスリーブ部材と、該スリーブ部材および一
方の管の端部を外嵌している筒状部が軸方向一方の管側
に、前記他方部材に形成の螺子に螺合する螺子形成部が
軸方向他方部材側にそれぞれ形成されるナット部材とを
用いて構成するにあたり、前記スリーブ部材の内径寸法
を、軸方向全長に亘って一方の管の内径寸法と略等しく
設定すると共に、前記ナット部材は、筒状部の外径寸法
を螺子形成部の外径寸法よりも小さく設定し、筒状部の
内径寸法を螺子形成部の内径寸法よりも小さく設定し
て、ナット部材内周部の筒状部と螺子形成部とのあいだ
の部位に、スリーブ部材の他方部材側端部に形成のフラ
ンジ部が係止してスリーブ部材の抜止めをする係止面部
が形成されたものとし、かつ筒状部および螺子形成部の
各外周に、ナット部材を回動させるための工具係止用の
係止部をそれぞれ形成した管継手である。そして、この
様にすることにより、スリーブ部材が軸方向全長に亘っ
て一方の管と略等しい内径寸法に設定されていて、構造
簡単かつ低コストで、しかも流体の圧力損失を生じるこ
とがないものでありながら、ナット部材を他方部材に螺
合させるときには、螺子形成部よりも細径の筒状部の外
周に形成される係止部に工具を係止してナット部材を回
動せしめることにより、狭いスペースでもナット部材の
緊締作業を容易に行うことができる。
【０００５】
【発明の実施の形態】次に、本発明の実施の形態を図面
に基づいて説明する。図面において、１は油圧ショベル
に配設される管（本発明の一方の管に相当する）であっ
て、該管１は、後述する第一管継手（本発明の管継手に
相当する）２および第二管継手（本発明の他方部材に相
当する）３を介して、油圧機器４に接続されている。
【０００６】前記第一管継手２は、スリーブ部材５とナ
ット部材６とから構成されるが、スリーブ部材５は、軸
方向略全長に亘って外径寸法Ａおよび内径寸法Ｂが前記
管１と等しく設定される筒形状のものであって、該スリ
ーブ部材５の一端部は、管１の端部にティグ溶接により
突き合わせ溶接５ａされる。またスリーブ部材５の他端
部には、外径方向に円形状に突出するフランジ部５ｂが
形成されている。
【０００７】一方、ナット部材６は、その軸方向一半部
に、前記スリーブ部材５および管１の端部に軸回り方向
回動自在かつ軸芯方向移動自在に外嵌する筒状部６ａが
形成され、また軸方向他半側には、内周面部に雌螺子６
ｂが刻設された螺子形成部６ｃが形成されている。そし
て、これら筒状部６ａおよび螺子形成部６ｃの外周部に
は、スパナ（図示せず）を係止するための六角形状の面
取り部（本発明の係止部に相当する）６ｄ、６ｅがそれ
ぞれ形成されているが、この場合、筒状部６ａの面取り
部６ｄの外径寸法Ｃは、螺子形成部６ｃの面取り部６ｅ
の外径寸法Ｄよりも小さく（Ｃ＜Ｄ）設定されている。
また螺子形成部６ｃの内径寸法Ｅは、前記スリーブ部材
５および管１の外径寸法Ａより僅かに大きく（Ｅ＞Ａ）
設定され、また図１から明らかなように、筒状部６ａの
内径寸法Ｇよりも大きく（Ｅ＞Ｇ）設定されており、こ
れによって該螺子形成部６ｃをスリーブ部材５および管
１に外嵌できるようになっている。
【０００８】さらに、ナット部材６内周部の筒状部６ａ
と螺子形成部６ｃとのあいだの部位には、前記スリーブ
部材５のフランジ部５ｂに係止する係止面部６ｆが形成
されており、これによってナット部材６がスリーブ部材
５から管１の反対側、つまり第二管継手３側に抜け出て
しまうことを規制できるようになっている。
【０００９】そして、前記管１に第一管継手２を結合す
るにあたり、まず、ナット部材６を管１に外嵌して奥方
にずらし、管１の端部を露出させる。さらに、該露出さ
せた管１の端部に、スリーブ部材５の一端部をティグ溶
接により突き合わせ溶接５ａし、しかる後、前記奥方に
ずらしたナット部材６を、螺子形成部６ｃがスリーブ部
材フランジ部５ｂよりも第二管継手３側に突出するよう
先方にずらす。
【００１０】一方、前記第二管継手３は、内径寸法Ｆが
前記スリーブ部材５の内径寸法Ｂと等しく（Ｆ＝Ｂ）設
定される内筒部３ａを有するものであって、該第二管継
手３の外周側中央部には、スパナが係止する六角形状の
面取り部３ｂが形成されている。さらに、該面取り部３
ｂの軸方向一方側には、前記ナット部材螺子形成部６ｃ
の雌螺子６ｂに螺合する雄螺子３ｃが形成され、また面
取り部３ｂの軸方向他方側には、前記油圧機器４に形成
の雌螺子４ａに螺合する雄螺子３ｄが形成されている。
【００１１】そして、前記第一管継手２と第二管継手３
とは、第一管継手２のナット部材６をスパナを用いて回
動させて、ナット部材螺子形成部６ｃの雌螺子６ｂを第
二管継手２の一方側の雄螺子６ｂに螺合緊締することに
より一体的に結合される構成となっている。ここで、７
は前記第一管継手２と第二管継手３とを結合させること
により、互いに突合う状態となるスリーブ部材フランジ
部５ｂの他端側面部５ｃと第二管継手３の一方側面部３
ｅとのあいだをシールすべく両面部５ｃ、３ｅ間に介装
されるシール部材であり、また、８は第二管継手３と油
圧機器４とのあいだをシールするためのシール部材であ
る。
【００１２】叙述の如く構成されたものにおいて、第一
管継手２は、外径寸法Ａおよび内径寸法Ｂが軸方向略全
長に亘って管１と等しい筒形状のスリーブ部材５と、該
スリーブ部材５に抜け止め状に外嵌する筒状部６ａが軸
方向一半側に形成され、かつ第二管継手３に螺合する螺
子形成部６ｃが軸方向他半側に形成されるナット部材６
とから構成されている。そして、この第一管継手２を第
二管継手３に結合するにあたり、前述したようにナット
部材６をスパナを用いて回動させるが、この場合、ナッ
ト部材６には、螺子形成部６ｃの外周だけでなく、該螺
子形成部６ｃよりも細径の筒状部６ａの外周にもスパナ
係止用の面取り部６ｄが形成されていて、狭いスペース
でスパナにより緊締作業を行うような場合に、上記細径
の筒状部６ａに形成される面取り部６ｄにスパナを係止
してナット部材６を回動せしめることにより、緊締作業
を容易に行うことができる。
【００１３】この様に、本発明が実施された形態におい
ては、スリーブ部材５が軸方向略全長に亘って管１と同
径寸法に設定されていて、構造簡単かつ低コストで、し
かも流体の圧力損失を生じることがないものでありなが
ら、螺子形成部６ｃよりも細径の筒状部面取り部６ｄに
スパナを係止することにより、狭いスペースでもスパナ
による緊締作業を容易に行えることになって、作業性が
向上する。尚、スペースにゆとりがある場合には、螺子
形成部６ｃ外周の面取り部６ｅにスパナを係止して緊締
作業を行っても良いことは勿論である。
【００１４】さらにこのものにおいて、ナット部材６は
管１に外嵌できる寸法設定であるから、該ナット部材６
を管１に外嵌して奥方にずらした状態でスリーブ部材５
を管１に溶着することができ、しかもスリーブ部材５
は、前述したように軸方向略全長に亘って同径寸法のも
のであるから軸方向の長さを可及的に短くできることに
なって、軸方向に短いスペースであっても、スリーブ部
材５を管１に容易に溶着できる。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention belongs to the technical field of pipe joints used for connecting pipes in hydraulic excavators and the like. [0002] Generally, when connecting one pipe to the other pipe, the other pipe joint, or the other member such as equipment using this kind of pipe joint, the pipe joint is connected to one end thereof. Using a sleeve member welded to the end of one of the tubes, and a nut member having a thread forming portion that is externally fitted to the other end of the sleeve member in a retaining manner and screwed to the other member side. There is one that is configured. Conventionally, as shown in FIG. 3, a pipe joint composed of a sleeve member and a nut member is known.
In the screw forming portion 9a, a female screw 9b is engraved on the inner peripheral side,
A locking portion (for example, a square or hexagonal chamfered portion) 9c for locking a tool such as a spanner is formed on the outer peripheral side. [0003] By the way, when the conventional pipe joint is assembled in a narrow space, the locking portion 9 is required.
If the outer diameter of the thread forming portion 9a where the c is formed is large, the tightening operation with a tool becomes difficult, so that the outer diameter of the screw forming portion 9a is as small as possible, for example, the one tube 1
The nut member 9 having an outer diameter dimension almost equal to or slightly larger than the outer diameter dimension of the nut member may be employed. In this case, one end of the sleeve member 10 is welded 10a to the end of the one tube 1 as described above, and the other end is welded to the one tube 1 as described above.
Since the nut member 9 is fitted to the inner peripheral side of the nut member 9 having an outer diameter substantially equal to that of the nut member 9, the other end portion has a stepped shape having a smaller diameter than the one end portion. For this reason, there is a problem that the structure of the pipe joint becomes complicated, which hinders cost reduction. Further, the inner diameter of the other member 11 and the inner diameter of the other end of the sleeve member 10 which are screwed to the female screw 9b on the inner peripheral side of the screw forming portion 9a are the inner diameter (nominal diameter) of one tube 1.
Since the diameter is smaller than that, there is also a problem that a pressure loss of the fluid flowing through the pipe occurs in the small diameter portion, and there is a problem to be solved by the present invention. When one of the pipes 1 has a bent portion 1a as shown in FIG. 3, when welding the pipe end and the sleeve member 10,
A straight portion 1b between the welded portion 10a and the bent portion 1a
Requires a predetermined minimum length L. However, in the conventional pipe joint, as described above, the sleeve member 10 has a stepped shape, and the nut member 9 is externally fitted to the other end of the sleeve member having a small diameter. There is also a problem to be solved in that the length becomes inevitably long, which makes it difficult to weld the pipe end to the sleeve member 10 in a narrow space in the axial direction. SUMMARY OF THE INVENTION [0004] In view of the circumstances as described above, the present invention has been made for the purpose of solving these problems. a pipe joint for connection with other members such as other tube fittings or equipment, the tube joint, a tubular sleeve member having one end welded to the end of the one pipe, the sleeve member and one
A tubular portion externally fitting the end of one of the tubes is on one axial side of the tube , and a screw forming portion for screwing with a screw formed on the other member is on the other axial side. In the configuration using the formed nut member, the inner diameter of the sleeve member is set to be substantially equal to the inner diameter of one of the tubes over the entire length in the axial direction, and the nut member is provided outside the cylindrical portion. The diameter is set smaller than the outer diameter of the screw forming part,
Set the inner diameter smaller than the inner diameter of the screw forming part.
Between the cylindrical portion of the nut member inner peripheral portion and the screw forming portion.
At the end of the sleeve member on the other member side.
Locking surface that locks the flange to prevent the sleeve member from coming off
Is formed, and the cylindrical portion and the screw forming portion
Each outer periphery, a pipe joint formed respectively an engaging portion of the tool locking for rotating the nut member. By doing so, the sleeve member is set to have an inner diameter substantially equal to that of one of the tubes over the entire length in the axial direction, so that the structure is simple and the cost is low, and the pressure loss of the fluid does not occur. However, when screwing the nut member to the other member, the nut member is rotated by locking the tool to the locking portion formed on the outer periphery of the cylindrical portion having a smaller diameter than the screw forming portion. Even in a narrow space, the tightening work of the nut member can be easily performed. Next, an embodiment of the present invention will be described with reference to the drawings. In the drawings, reference numeral 1 denotes a pipe (corresponding to one pipe of the present invention) disposed on a hydraulic excavator, and the pipe 1 is a first pipe joint (corresponding to a pipe joint of the present invention) 2 described later. And a hydraulic device 4 via a second pipe joint (corresponding to the other member of the present invention) 3. The first pipe joint 2 comprises a sleeve member 5 and a nut member 6. The sleeve member 5 has an outer diameter A and an inner diameter B which are substantially equal to those of the pipe 1 over substantially the entire length in the axial direction. One end of the sleeve member 5 is butt-welded 5a to the end of the tube 1 by TIG welding. The other end of the sleeve member 5 is formed with a flange portion 5b that projects in a circular shape in the outer diameter direction. On the other hand, the nut member 6 has a cylindrical portion 6a which is fitted to the sleeve member 5 and the end of the tube 1 so as to be rotatable around the axis and movable in the axial direction at one half in the axial direction. On the other half in the axial direction, a female screw 6 is provided on the inner peripheral surface.
A screw forming portion 6c engraved with b is formed. A hexagonal chamfered portion (corresponding to a locking portion of the present invention) 6d, 6e for locking a wrench (not shown) is provided on the outer peripheral portion of the cylindrical portion 6a and the screw forming portion 6c. In this case, the outer diameter dimension C of the chamfered portion 6d of the cylindrical portion 6a is equal to the chamfered portion 6e of the screw forming portion 6c.
Is set smaller (C <D) than the outer diameter dimension D of the first lens.
The inner diameter E of the screw forming portion 6c is slightly larger than the outer diameter A of the sleeve member 5 and the tube 1 (E> A).
It is set, and as is clear from FIG.
It is set to be larger than the inner diameter dimension G (E> G) , so that the screw forming portion 6c can be fitted to the sleeve member 5 and the tube 1 outside. Further, a cylindrical portion 6a on the inner peripheral portion of the nut member 6
A locking surface portion 6f for locking to the flange portion 5b of the sleeve member 5 is formed in a portion between the nut member 6 and the screw forming portion 6c. That is, it is possible to restrict the slipping-out to the second pipe joint 3 side. In connecting the first pipe joint 2 to the pipe 1, first, the nut member 6 is externally fitted to the pipe 1 and shifted to the back to expose the end of the pipe 1. Further, one end of the sleeve member 5 is butt-welded 5a to the exposed end of the pipe 1 by TIG welding, and then, the nut member 6 shifted to the rear is screwed into the sleeve member flange portion. 5b so as to project toward the second pipe joint 3 side. On the other hand, the second pipe joint 3 has an inner cylindrical portion 3a whose inner diameter dimension F is set equal to the inner diameter dimension B of the sleeve member 5 (F = B). A hexagonal chamfered portion 3b for locking a spanner is formed at a central portion on the outer peripheral side of the joint 3. Further, the chamfer 3
b, the nut member screw forming portion 6c
A male screw 3c is formed on the other side of the chamfered portion 3b in the axial direction. The first pipe joint 2 and the second pipe joint 3
Means that the nut member 6 of the first pipe joint 2 is rotated using a spanner, and the female screw 6b of the nut member screw forming portion 6c is screwed and tightened to the male screw 6b on one side of the second pipe joint 2. Thus, they are integrally connected. Where 7
Is connected to the first pipe joint 2 and the second pipe joint 3 so that the other end side face 5c of the sleeve member flange 5b and the one side face 3 of the second pipe joint 3 come into abutting state.
Reference numeral 8 denotes a seal member interposed between the two side portions 5c and 3e to seal the space between the second pipe joint 3 and the hydraulic device 4. In the construction described above, the first pipe joint 2 comprises a tubular sleeve member 5 having an outer diameter A and an inner diameter B equal to the pipe 1 over substantially the entire length in the axial direction; A nut member 6 in which a cylindrical portion 6a which is fitted to the outer periphery 5 in a retaining shape is formed on one half in the axial direction, and a screw forming portion 6c which is screwed to the second pipe joint 3 is formed on the other half in the axial direction.
It is composed of When coupling the first pipe joint 2 to the second pipe joint 3, the nut member 6 is rotated using a wrench as described above. In this case, the nut member 6 has the screw forming portion 6 c. A chamfered portion 6d for locking a wrench is formed not only on the outer periphery but also on the outer periphery of the cylindrical portion 6a having a smaller diameter than the screw forming portion 6c, so that tightening work is performed with a wrench in a narrow space. The tightening operation can be easily performed by locking the spanner to the chamfered portion 6d formed on the small-diameter cylindrical portion 6a and rotating the nut member 6. As described above, according to the embodiment of the present invention, the sleeve member 5 is set to have the same diameter as the pipe 1 over substantially the entire length in the axial direction. Although the pressure loss does not occur, the tightening operation by the spanner can be easily performed even in a narrow space by locking the spanner to the cylindrical chamfered portion 6d having a smaller diameter than the screw forming portion 6c. Therefore, workability is improved. When there is a space in the space, it is a matter of course that the tightening work may be performed by locking the spanner with the chamfered portion 6e on the outer periphery of the screw forming portion 6c. Further, in this case, since the nut member 6 is set to a size which can be fitted to the pipe 1, the nut member 6
The sleeve member 5 is fitted to the pipe 1 and shifted to the back.
Can be welded to the pipe 1 and the sleeve member 5
Are of the same diameter over substantially the entire length in the axial direction, as described above, so that the length in the axial direction can be reduced as much as possible. Can be easily welded to the tube 1.
【図面の簡単な説明】
【図１】管継手を用いての管と油圧機器との接続を示す
説明図である。
【図２】図１のＸ−Ｘ断面図である。
【図３】従来の管継手を用いての管と油圧機器との接続
を示す説明図である。
【符号の説明】
１ 管
２ 第一管継手
３ 第二管継手
５ スリーブ部材
６ ナット部材
６ａ 筒状部
６ｃ 螺子形成部
６ｄ 面取り部BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an explanatory diagram showing connection between a pipe and a hydraulic device using a pipe joint. FIG. 2 is a sectional view taken along line XX of FIG. FIG. 3 is an explanatory view showing connection between a pipe and a hydraulic device using a conventional pipe joint. [Description of Signs] 1 pipe 2 first pipe joint 3 second pipe joint 5 sleeve member 6 nut member 6a cylindrical portion 6c screw forming portion 6d chamfered portion
Claims (1)
たは機器等の他方部材と接続するための管継手であっ
て、該管継手を、一端部が一方の管の端部に溶着される
筒状のスリーブ部材と、該スリーブ部材および一方の管
の端部を外嵌している筒状部が軸方向一方の管側に、前
記他方部材に形成の螺子に螺合する螺子形成部が軸方向
他方部材側にそれぞれ形成されるナット部材とを用いて
構成するにあたり、前記スリーブ部材の内径寸法を、軸
方向全長に亘って一方の管の内径寸法と略等しく設定す
ると共に、前記ナット部材は、筒状部の外径寸法を螺子
形成部の外径寸法よりも小さく設定し、筒状部の内径寸
法を螺子形成部の内径寸法よりも小さく設定して、ナッ
ト部材内周部の筒状部と螺子形成部とのあいだの部位
に、スリーブ部材の他方部材側端部に形成のフランジ部
が係止してスリーブ部材の抜止めをする係止面部が形成
されたものとし、かつ筒状部および螺子形成部の各外周
に、ナット部材を回動させるための工具係止用の係止部
をそれぞれ形成した管継手。(57) [Claim 1] A pipe joint for connecting one pipe to the other pipe, the other pipe joint, or the other member of equipment or the like, wherein the pipe joint is connected to one end. A tubular sleeve member whose portion is welded to the end of one of the tubes, the sleeve member and the one of the tubes
The cylindrical portion externally fitted with the end of the cylindrical member is on one tube side in the axial direction, and the screw forming portion screwed to the screw formed on the other member is in the axial direction.
In the configuration using the nut member formed on the other member side, the inner diameter of the sleeve member is set to be substantially equal to the inner diameter of one tube over the entire axial length, and the nut member is Set the outer diameter of the cylindrical part smaller than the outer diameter of the screw forming part, and set the inner diameter of the cylindrical part.
Method is set smaller than the inner diameter of the thread forming part,
Part between the cylindrical part of the inner peripheral part of the member and the screw forming part
And a flange formed at the other member side end of the sleeve member.
Forms a locking surface to lock the sleeve member
And each outer periphery of the cylindrical portion and the screw forming portion
A pipe joint formed respectively an engaging portion of the tool locking for rotating the nut member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP08459397A JP3475040B2 (en) | 1997-03-18 | 1997-03-18 | Pipe fittings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP08459397A JP3475040B2 (en) | 1997-03-18 | 1997-03-18 | Pipe fittings |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10259888A JPH10259888A (en) | 1998-09-29 |
| JP3475040B2 true JP3475040B2 (en) | 2003-12-08 |
Family
ID=13834991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP08459397A Expired - Fee Related JP3475040B2 (en) | 1997-03-18 | 1997-03-18 | Pipe fittings |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3475040B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AUPS267102A0 (en) | 2002-05-31 | 2002-06-20 | Philmac Pty Ltd | Philmac pty ltd |
| CN102011905A (en) * | 2010-10-28 | 2011-04-13 | 无锡宝南机器制造有限公司 | Sealing joint in hydraulic system |
-
1997
- 1997-03-18 JP JP08459397A patent/JP3475040B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH10259888A (en) | 1998-09-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20030813 |
|
| LAPS | Cancellation because of no payment of annual fees |