JPH07239061A - Joint for thermoplastic resin container - Google Patents
Joint for thermoplastic resin containerInfo
- Publication number
- JPH07239061A JPH07239061A JP2938894A JP2938894A JPH07239061A JP H07239061 A JPH07239061 A JP H07239061A JP 2938894 A JP2938894 A JP 2938894A JP 2938894 A JP2938894 A JP 2938894A JP H07239061 A JPH07239061 A JP H07239061A
- Authority
- JP
- Japan
- Prior art keywords
- joint
- thermoplastic resin
- piping
- pipe
- container
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
- B29C66/122—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
- B29C66/1222—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least a lapped joint-segment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
- B29C66/122—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
- B29C66/1226—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least one bevelled joint-segment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
- B29C66/131—Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
- B29C66/53—Joining single elements to tubular articles, hollow articles or bars
- B29C66/532—Joining single elements to the wall of tubular articles, hollow articles or bars
- B29C66/5324—Joining single elements to the wall of tubular articles, hollow articles or bars said single elements being substantially annular, i.e. of finite length
- B29C66/53245—Joining single elements to the wall of tubular articles, hollow articles or bars said single elements being substantially annular, i.e. of finite length said articles being hollow
- B29C66/53246—Joining single elements to the wall of tubular articles, hollow articles or bars said single elements being substantially annular, i.e. of finite length said articles being hollow said single elements being spouts, e.g. joining spouts to containers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
- B29C66/832—Reciprocating joining or pressing tools
- B29C66/8322—Joining or pressing tools reciprocating along one axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/04—Polymers of ethylene
- B29K2023/06—PE, i.e. polyethylene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/10—Polymers of propylene
- B29K2023/12—PP, i.e. polypropylene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2069/00—Use of PC, i.e. polycarbonates or derivatives thereof, as moulding material
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Branch Pipes, Bends, And The Like (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、熱可塑性樹脂からなる
容器に熱融着により取り付けられる継手に関するもので
ある。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joint which is attached to a container made of a thermoplastic resin by heat fusion.
【０００２】[0002]
【従来の技術】多量の水または液体等を収容するため、
直径１〜数ｍのポリエチレン等の熱可塑性樹脂からなる
タンクが工場等において用いられている。このようなタ
ンクは、回転成形法等により製造されているが、タンク
内の液体を取り出すためタンクの壁部に配管を取り付け
ることが必要となる。2. Description of the Related Art In order to store a large amount of water or liquid,
Tanks made of thermoplastic resin such as polyethylene having a diameter of 1 to several meters are used in factories and the like. Although such a tank is manufactured by a rotational molding method or the like, it is necessary to attach a pipe to the wall portion of the tank in order to take out the liquid in the tank.
【０００３】本発明者は、このような熱可塑性樹脂から
なる容器に配管を取付けるのための方法として、熱可塑
性樹脂からなる継手を容器に熱融着して取り付ける方法
を提案している（特開平４−２３４６３３号公報）。こ
の方法によれば、任意の寸法の継手を、任意の数だけ、
任意の場所に取り付けることができ、必要に応じて、継
手の位置、寸法及び数を自由に選ぶことができる。従っ
て、最適な状態で配管作業を効率よく行うことができ
る。また、熱融着により取り付けるものであるので、液
漏れ防止等に対して高い信頼性を期待することができ、
また回転成形の際に一体的に継手を形成する方法に比べ
肉薄部分を生じにくく、機械的強度の面からも信頼性の
高いものとすることができる。The present inventor has proposed a method for attaching a joint made of a thermoplastic resin to a container by heat-sealing it as a method for mounting a pipe in such a container made of a thermoplastic resin (special feature). (Kaihei 4-234633). According to this method, any number of joints of any size,
It can be mounted at any place and the position, size and number of fittings can be freely selected as required. Therefore, the piping work can be efficiently performed in the optimum state. Also, since it is attached by heat fusion, high reliability can be expected in terms of liquid leakage prevention,
Further, compared with the method of integrally forming a joint during rotational molding, a thin portion is less likely to occur, and the reliability can be made high in terms of mechanical strength.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、タンク
の底部にはアール部分が形成されており、このようなタ
ンクの底部に継手を取り付けることは困難である。従っ
て、底部からある程度の高さの部分に継手を取り付ける
こととなるが、液面が継手の取付け位置よりも下方にな
ると、タンク内の液体を排出することができなくなると
いう問題があった。従って、先端が底部に到達するよう
な内部配管を取り付けることが必要となる。However, since a rounded portion is formed at the bottom of the tank, it is difficult to attach a joint to the bottom of such a tank. Therefore, although the joint is attached to a portion at a certain height from the bottom, there is a problem that the liquid in the tank cannot be discharged when the liquid level is below the joint attachment position. Therefore, it is necessary to attach an internal pipe whose tip reaches the bottom.
【０００５】また、継手に外部配管を取り付ける際、従
来はフランジ管継手等により外部配管を取り付けている
が、このようなフランジ管継手による取付け作業は複雑
で煩わしいという問題があった。また、コストが高くな
るという問題もあった。Further, when the external pipe is attached to the joint, the external pipe is conventionally attached by a flange pipe joint or the like, but there is a problem that the attaching work by such a flange pipe joint is complicated and troublesome. There is also a problem that the cost becomes high.
【０００６】本発明の目的は、このような従来の問題点
を解消し、内部配管または外部配管を簡易に取り付ける
ことができる、熱可塑性樹脂からなる容器用の継手を提
供することにある。An object of the present invention is to solve the above-mentioned conventional problems and to provide a joint for a container made of a thermoplastic resin, in which an internal pipe or an external pipe can be easily attached.
【０００７】[0007]
【課題を解決するための手段】本発明は、熱可塑性樹脂
からなる容器の壁部に形成された貫通孔に熱融着により
取付けられる熱可塑性樹脂からなる筒状の継手であり、
筒内部に雌ねじ部が形成されていることを特徴としてい
る。DISCLOSURE OF THE INVENTION The present invention is a tubular joint made of a thermoplastic resin which is attached by thermal fusion to a through hole formed in a wall of a container made of a thermoplastic resin,
It is characterized in that a female screw portion is formed inside the cylinder.
【０００８】本発明の継手の材質は、熱可塑性樹脂から
なる容器と熱融着し得る熱可塑性樹脂であれば特に限定
されるものではないが、容器と継手との熱融着の強度の
点からは、容器を構成する熱可塑性樹脂と同じ材質の熱
可塑性樹脂であることが好ましい。熱可塑性樹脂として
は、一般に回転成形法等で使用されている熱可塑性樹脂
を用いることができ、例えば、ポリエチレン、ポリプロ
ピレン、ポリカーボネート等を用いることができる。The material of the joint of the present invention is not particularly limited as long as it is a thermoplastic resin that can be heat-sealed to a container made of a thermoplastic resin, but the point of strength of heat-sealing the container and the joint. Therefore, it is preferable that the thermoplastic resin is the same material as the thermoplastic resin forming the container. As the thermoplastic resin, a thermoplastic resin generally used in a rotational molding method or the like can be used, and for example, polyethylene, polypropylene, polycarbonate or the like can be used.
【０００９】[0009]
【作用】本発明の熱可塑性樹脂製容器用継手では、筒内
部に雌ねじ部が形成されているため、このような継手を
容器に熱融着で取り付けた後、この筒内部の雌ねじ部
に、雄ねじ部を有する配管の雄ねじ部を螺着することに
より、配管を取り付けることができる。In the thermoplastic resin container joint of the present invention, since the female screw portion is formed inside the cylinder, after the joint is attached to the container by heat fusion, the female screw portion inside the cylinder is The pipe can be attached by screwing the male screw portion of the pipe having the male screw portion.
【００１０】[0010]
【実施例】図２は、本発明に従う一実施例の継手を示す
側面図であり、図１は断面図である。図２及び図１を参
照して、この継手１はポリエチレン等の熱可塑性樹脂か
ら形成されており、熱可塑性樹脂からなる容器に取り付
ける際に熱融着されるフランジ融着部３ａを有する内側
フランジ部３、及び配管取付け等の際に用いられる外側
フランジ部２を備えている。内側フランジ部３からは、
さらに容器に形成された貫通孔に融着されるテーパー部
４が形成されている。図１に示されるように、継手１は
筒状に形成されており、筒内部５には雌ねじ部が形成さ
れている。FIG. 2 is a side view showing a joint of an embodiment according to the present invention, and FIG. 1 is a sectional view. With reference to FIGS. 2 and 1, this joint 1 is formed of a thermoplastic resin such as polyethylene, and has an inner flange having a flange fusion portion 3a that is heat-sealed when it is attached to a container made of a thermoplastic resin. It is provided with a portion 3 and an outer flange portion 2 which is used when attaching pipes and the like. From the inner flange part 3,
Further, a tapered portion 4 that is fused to a through hole formed in the container is formed. As shown in FIG. 1, the joint 1 is formed into a tubular shape, and an internal thread portion is formed inside the tube 5.
【００１１】図３は、上記実施例の継手と、該継手が取
り付けられる熱可塑性樹脂製容器の壁部を示している。
図３を参照して、容器壁部１０は、ポリエチレン等の熱
可塑性樹脂から形成されており、継手１が取り付けられ
る部分には、貫通孔１１が形成されている。貫通孔１１
の直径は、継手１のテーパー部４の先端部の直径よりも
大きく、テーパー部４の根元部の直径よりも小さな直径
に設定されている。このように貫通孔１１の直径を継手
１のテーパー部４の先端部の直径よりも大きな直径とす
ることにより、継手１を貫通孔１１に嵌め入れる際、そ
の位置決めがより容易なものとなる。継手１を容器壁部
１０の貫通孔１１の周辺部に熱融着させる際には、予め
貫通孔１１の周辺部及び継手１のフランジ融着部３ａ及
びテーパー部４を加熱しておく。このような加熱は、例
えば特開平４−２３４６３３号公報に開示したような融
着装置を用いてヒーターにより加熱することができる。
例えば、加熱温度を２７０℃の温度に設定し、この状態
を約６０秒間程度保持する。このような加熱後、継手１
のテーパー部４及びフランジ融着部３ａを、容器壁部１
０の貫通孔１１の加熱された周辺部分に押しあてる。例
えば、約６５ｋｇ／ｃｍ2 の押圧力によって押圧し圧着
させる。貫通孔１１の周辺部及び継手１のフランジ融着
部３ａ及びテーパー部４が溶融状態になっているので、
このような押圧によりそれらが互いに熱融着される。FIG. 3 shows the joint of the above embodiment and the wall of the thermoplastic resin container to which the joint is attached.
With reference to FIG. 3, the container wall portion 10 is formed of a thermoplastic resin such as polyethylene, and a through hole 11 is formed in a portion to which the joint 1 is attached. Through hole 11
Is larger than the diameter of the tip portion of the tapered portion 4 of the joint 1 and smaller than the diameter of the root portion of the tapered portion 4. By making the diameter of the through hole 11 larger than the diameter of the tip portion of the tapered portion 4 of the joint 1 in this way, when the joint 1 is fitted into the through hole 11, the positioning thereof becomes easier. When heat-sealing the joint 1 to the peripheral portion of the through hole 11 of the container wall portion 10, the peripheral portion of the through hole 11, the flange fusion portion 3 a and the taper portion 4 of the joint 1 are heated in advance. Such heating can be performed by a heater using, for example, a fusing device as disclosed in JP-A-4-234633.
For example, the heating temperature is set to a temperature of 270 ° C., and this state is maintained for about 60 seconds. After such heating, joint 1
The taper portion 4 and the flange fusion portion 3a of the container wall portion 1
It is pressed against the heated peripheral portion of the through hole 11 of 0. For example, it is pressed and pressed by a pressing force of about 65 kg / cm 2 . Since the peripheral portion of the through hole 11, the flange fusion portion 3a and the taper portion 4 of the joint 1 are in a molten state,
Such pressing causes them to be heat fused to each other.
【００１２】図４は、このような熱融着の状態を示す断
面図である。図４を参照して、継手１を貫通孔１１の周
辺部に押圧することにより、貫通孔１１の周辺部及び継
手１のテーパー部４及びフランジ融着部３ａが溶融状態
であるので、溶融した樹脂が押圧力によって融着部分か
ら押し出され、図４に示すように融着の接合部分の全周
からビード６及び７がはみ出して生じる。融着が適正に
なされたかどうかは、このようなビード６及び７の発生
を確認することによって行うことができる。熱融着後、
自然冷却あるいは送風による強制冷却等で熱融着部分を
冷却することにより継手１の熱融着による取付けが完了
する。継手１の筒内部５には雌ねじ部が形成されている
ので、雌ねじ部５を有した継手が容器壁部１０に取り付
けられたこととなる。FIG. 4 is a sectional view showing a state of such heat fusion. Referring to FIG. 4, when the joint 1 is pressed against the peripheral portion of the through hole 11, the peripheral portion of the through hole 11, the taper portion 4 and the flange fusion-bonded portion 3a of the joint 1 are in a molten state, so that they are melted. The resin is extruded from the fusion-bonded portion due to the pressing force, and the beads 6 and 7 protrude from the entire circumference of the fusion-bonded joint portion as shown in FIG. Whether or not the fusion has been properly performed can be performed by confirming the generation of the beads 6 and 7. After heat fusion,
The attachment of the joint 1 by heat fusion is completed by cooling the heat fusion portion by natural cooling or forced cooling by blowing air. Since the female screw portion is formed inside the cylinder 5 of the joint 1, the joint having the female screw portion 5 is attached to the container wall portion 10.
【００１３】図５は、図４に示すような継手の取付け
後、容器内に内部配管を取り付けた状態を示している。
図５を参照して、容器内部に取り付けられている内部配
管２０の一方端には雄ねじ部２１が形成されており、こ
の雄ねじ部２１が、継手１の筒内部５の雌ねじ部に螺着
されている。内部配管２０の他方端２２は、図５に示す
ように斜めに切断されており、容器壁部１０の底面１０
ａに近接するように配置されている。このような内部配
管２０を設けることにより、容器内の底部に残留する液
体を外部に排出することができる。また、本実施例のよ
うに内部配管２０の他方端２２を斜めに切断しておくこ
とにより、底面１０ａに変形が生じてもそのような変形
によって内部配管２０の他方端２２が塞がれてしまうよ
うなことはない。FIG. 5 shows a state in which an internal pipe is attached inside the container after the joint shown in FIG. 4 is attached.
With reference to FIG. 5, a male screw portion 21 is formed at one end of the internal pipe 20 attached to the inside of the container, and the male screw portion 21 is screwed to the female screw portion of the cylinder interior 5 of the joint 1. ing. The other end 22 of the internal pipe 20 is obliquely cut as shown in FIG. 5, and the bottom surface 10 of the container wall 10 is cut.
It is arranged so as to be close to a. By providing such an internal pipe 20, the liquid remaining at the bottom of the container can be discharged to the outside. Further, by obliquely cutting the other end 22 of the internal pipe 20 as in the present embodiment, even if the bottom surface 10a is deformed, the other end 22 of the internal pipe 20 is blocked by such deformation. There is nothing to lose.
【００１４】本発明に従えば、図５に示すように、雄ね
じ部が形成された内部配管を用いて、これを継手の筒内
部の雌ねじ部に螺着することにより、簡単に容器内部に
内部配管を取り付けることができる。また、本発明に従
う継手の筒内部に形成される雌ねじ部の寸法形状を、一
般管用のねじの基準寸法に対応させておけば、一般に用
いる配管をそのまま利用することができ、配管取付け作
業が大幅に簡略化できるとともに、配管取付け作業のコ
ストを低減させることができる。According to the present invention, as shown in FIG. 5, an internal pipe having a male screw portion is used, and this is screwed into a female screw portion inside the cylinder of the joint, so that the inside of the container can be easily Piping can be attached. Further, if the dimension and shape of the female threaded portion formed inside the cylinder of the joint according to the present invention are made to correspond to the standard dimensions of the screw for general pipes, commonly used pipes can be used as they are, and the pipe installation work can be performed significantly. It can be simplified and the cost of pipe mounting work can be reduced.
【００１５】図６は、容器壁部に取付けた継手に外部配
管を取り付けた状態を示す断面図である。図６を参照し
て、外部配管３０の先端には雄ねじ部３１が形成されて
おり、この雄ねじ部３１を継手１の筒内部５の雌ねじ部
に螺着することにより、外部配管３０が継手１に取り付
けられている。このように、本発明に従えば、雄ねじ部
を有した外部配管を継手に簡単に取り付けることができ
る。従って、従来のようにフランジ管継手を用いた複雑
な取付け作業を行う必要がなく、配管の取付け作業を大
幅に簡略化することができる。また、筒内部５の雌ねじ
部を上述のように一般管用のねじの基準寸法に対応する
ように形成させておくことにより、外部配管３０として
も一般の基準寸法の雄ねじ部が形成された配管を用いる
ことができ、コストダウンを図ることができる。FIG. 6 is a sectional view showing a state in which an external pipe is attached to a joint attached to the container wall. With reference to FIG. 6, a male screw portion 31 is formed at the tip of the external pipe 30, and by screwing the male screw portion 31 to the female screw portion of the cylinder interior 5 of the joint 1, the outer pipe 30 is connected to the joint 1. Is attached to. As described above, according to the present invention, the external pipe having the male screw portion can be easily attached to the joint. Therefore, it is not necessary to perform a complicated mounting work using a flange pipe joint as in the conventional case, and the piping mounting work can be greatly simplified. Further, by forming the female threaded portion of the inside of the cylinder 5 so as to correspond to the standard dimension of the screw for the general pipe as described above, the external pipe 30 may be a pipe having a male threaded section of the general standard dimension. It can be used and the cost can be reduced.
【００１６】図５においては、内部配管を継手に取り付
けた例を示し、図６では外部配管を取り付けた例を示し
ているが、当然のことながら、継手に外部配管及び内部
配管の両方を取り付けることもできる。FIG. 5 shows an example in which the internal pipe is attached to the joint, and FIG. 6 shows an example in which the external pipe is attached. Of course, both the external pipe and the internal pipe are attached to the joint. You can also
【００１７】上記実施例では本発明に従う継手として、
雌ねじ部が熱可塑性樹脂で形成された例を示したが、雌
ねじ部を金属から形成させてもよい。例えば、筒状のね
じ管のまわりに一体的に熱可塑性樹脂を成形することに
より継手を形成し、このねじ管を筒内部の雌ねじ部とし
てもよい。雌ねじ部を金属で形成することにより、雌ね
じ部の機械的強度を高めることができるとともに、熱融
着の際に雌ねじ部が変形するのを防止することができ
る。In the above embodiment, as the joint according to the present invention,
Although the example in which the female screw portion is formed of the thermoplastic resin is shown, the female screw portion may be formed of metal. For example, a joint may be formed by integrally molding a thermoplastic resin around a tubular threaded tube, and the threaded tube may be used as the internal thread portion inside the tube. By forming the female screw portion with metal, it is possible to increase the mechanical strength of the female screw portion and prevent the female screw portion from being deformed during heat fusion.
【００１８】また、筒内部の雌ねじ部は筒内部全体に形
成されていなくともよく、螺着される筒内部の一部のみ
に雌ねじ部が形成されていてもよい。また、本発明に従
う継手は、上記実施例の形状のものに限定されることは
なく、上記実施例のようにフランジ部が形成されていな
くともよい。Further, the female screw portion inside the cylinder does not have to be formed on the entire inside of the cylinder, and the female screw portion may be formed only on a part inside the cylinder to be screwed. Further, the joint according to the present invention is not limited to the shape of the above embodiment, and the flange portion may not be formed as in the above embodiment.
【００１９】[0019]
【発明の効果】本発明の熱可塑性樹脂製容器用継手は、
筒内部に雌ねじ部が形成されており、雄ねじ部を有した
内部配管または外部配管を雌ねじ部に螺着させることに
より、内部配管または外部配管を簡単に取り付けること
ができる。The thermoplastic resin container joint of the present invention is
A female screw portion is formed inside the cylinder, and the inner pipe or the outer pipe can be easily attached by screwing the inner pipe having the male screw portion or the outer pipe to the female screw portion.
【００２０】従って、従来よりも配管取付け作業が大幅
に簡略化され、配管取付け作業のコストを大幅に低減す
ることができる。Therefore, the pipe mounting work can be greatly simplified as compared with the prior art, and the cost of the pipe mounting work can be greatly reduced.
【図１】本発明に従う一実施例の継手を示す断面図。FIG. 1 is a sectional view showing a joint of an embodiment according to the present invention.
【図２】本発明に従う一実施例の継手を示す側面図。FIG. 2 is a side view showing a joint according to an embodiment of the present invention.
【図３】本発明に従う一実施例の継手と、該継手が取り
付けられる容器壁部を示す断面図。FIG. 3 is a cross-sectional view showing a joint of one embodiment according to the present invention and a container wall portion to which the joint is attached.
【図４】本発明に従う一実施例の継手を容器壁部の貫通
孔に熱融着により取り付けた状態を示す断面図。FIG. 4 is a cross-sectional view showing a state in which a joint according to an embodiment of the present invention is attached to a through hole of a container wall by heat fusion.
【図５】本発明に従う一実施例の継手を容器壁部に取付
け、継手の筒内部に内部配管を螺着した状態を示す断面
図。FIG. 5 is a cross-sectional view showing a state in which a joint according to an embodiment of the present invention is attached to a container wall, and an internal pipe is screwed inside the cylinder of the joint.
【図６】本発明に従う一実施例の継手を容器壁部に取付
け、継手の筒内部に外部配管を螺着した状態を示す断面
図。FIG. 6 is a cross-sectional view showing a state in which a joint according to an embodiment of the present invention is attached to a wall portion of a container and an external pipe is screwed inside the cylinder of the joint.
１…継手 ２…外側フランジ部 ３…内側フランジ部 ３ａ…フランジ融着部 ４…テーパー部 ５…筒内部 ６…ビード １０…容器壁部 １１…容器壁部の貫通孔 ２０…内部配管 ２１…内部配管の雄ねじ部 ３０…外部配管 ３１…外部配管の雄ねじ部 DESCRIPTION OF SYMBOLS 1 ... Joint 2 ... Outer flange part 3 ... Inner flange part 3a ... Flange fusion part 4 ... Tapered part 5 ... Cylinder interior 6 ... Bead 10 ... Container wall part 11 ... Through hole of container wall part 20 ... Internal piping 21 ... Internal Male thread of piping 30 ... External piping 31 ... Male thread of external piping
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 // Ｂ２９Ｌ 23:00 ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification code Office reference number FI technology display area // B29L 23:00
Claims (1)
された貫通孔に熱融着により取付けられる熱可塑性樹脂
からなる筒状の継手であって、 前記筒内部に雌ねじ部が形成されていることを特徴とす
る熱可塑性樹脂製容器用継手。1. A tubular joint made of a thermoplastic resin, which is attached by thermal fusion to a through hole formed in a wall of a container made of a thermoplastic resin, wherein a female screw portion is formed inside the barrel. Thermoplastic resin container joints characterized by
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2938894A JPH07239061A (en) | 1994-02-28 | 1994-02-28 | Joint for thermoplastic resin container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2938894A JPH07239061A (en) | 1994-02-28 | 1994-02-28 | Joint for thermoplastic resin container |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07239061A true JPH07239061A (en) | 1995-09-12 |
Family
ID=12274761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2938894A Pending JPH07239061A (en) | 1994-02-28 | 1994-02-28 | Joint for thermoplastic resin container |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07239061A (en) |
-
1994
- 1994-02-28 JP JP2938894A patent/JPH07239061A/en active Pending
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