JPH07243562A - Joint for vessel of thermoplastic resin - Google Patents
Joint for vessel of thermoplastic resinInfo
- Publication number
- JPH07243562A JPH07243562A JP6038212A JP3821294A JPH07243562A JP H07243562 A JPH07243562 A JP H07243562A JP 6038212 A JP6038212 A JP 6038212A JP 3821294 A JP3821294 A JP 3821294A JP H07243562 A JPH07243562 A JP H07243562A
- Authority
- JP
- Japan
- Prior art keywords
- joint
- hole
- wall
- thermoplastic resin
- fusion
- 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
- 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
- B29C66/53247—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 said spouts comprising flanges
-
- 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
- B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
- B29C66/112—Single lapped joints
-
- 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
- B29C66/70—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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Branch Pipes, Bends, And The Like (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Details Of Rigid Or Semi-Rigid Containers (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】図４は、このような熱融着によって取付け
られる従来の継手を示す側面図であり、図５はその断面
図である。図４及び図５を参照して、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融着フラ
ンジ部３及び配管取付け等の際に用いられる取付フラン
ジ部２を有している。従来の継手１では、融着フランジ
部３の当接面３ａは平坦な面に形成されている。この当
接面３ａからさらに、テーパー部４が延びて形成されて
いる。図５に示されるように、継手１は筒状に形成され
ており、貫通孔５が形成されている。FIG. 4 is a side view showing a conventional joint attached by such heat fusion, and FIG. 5 is a sectional view thereof. With reference to FIGS. 4 and 5, the joint 1 is formed of a thermoplastic resin such as polyethylene, and is used for attaching a fusion-bonding flange portion 3 and pipes that are heat-sealed when attached to a container made of a thermoplastic resin. It has a mounting flange portion 2 used at that time. In the conventional joint 1, the contact surface 3a of the fusion bonding flange portion 3 is formed into a flat surface. A tapered portion 4 is further formed to extend from the contact surface 3a. As shown in FIG. 5, the joint 1 is formed in a tubular shape and has a through hole 5 formed therein.
【０００５】図６は、図４及び図５に示す従来の継手１
をポリエチレン等の熱可塑性樹脂からなる容器の壁部に
熱融着より取り付ける状態を説明するための側面図であ
る。図６において、容器壁部１０は断面で図示してい
る。図６に示されるように、容器壁部１０は曲面形状を
有しており、継手１が取り付けられる部分には貫通孔１
１が形成されている。従来、このような曲面形状を有す
る容器壁部１０の貫通孔１１に継手１を取り付ける場合
には、貫通孔１１の周辺部に、継手１の溶融フランジ部
３の当接面３ａを嵌め入れることのできる程度の大きさ
の孔１２を形成している。この孔１２の形成により、貫
通孔１１の周辺部には平坦な面を有した台座部１２ａが
形成される。継手１を取り付けるには、このような台座
部１２ａ及び貫通孔１１の内壁面を予熱するとともに、
溶融フランジ部３の当接面３ａ及びテーパー部４を予熱
した後、継手１の当接面３ａを台座部１２ａに当接させ
熱融着させるとともに、テーパー部４を貫通孔１１の内
壁面に熱融着させる。FIG. 6 shows a conventional joint 1 shown in FIGS. 4 and 5.
FIG. 4 is a side view for explaining a state in which the is attached to the wall portion of the container made of a thermoplastic resin such as polyethylene by heat fusion. In FIG. 6, the container wall 10 is shown in cross section. As shown in FIG. 6, the container wall 10 has a curved surface shape, and the portion to which the joint 1 is attached has a through hole 1
1 is formed. Conventionally, when attaching the joint 1 to the through hole 11 of the container wall portion 10 having such a curved surface shape, the contact surface 3a of the melting flange portion 3 of the joint 1 is fitted into the peripheral portion of the through hole 11. The holes 12 are formed in such a size that they can be formed. By forming this hole 12, a pedestal portion 12a having a flat surface is formed in the peripheral portion of the through hole 11. To attach the joint 1, while preheating the pedestal portion 12a and the inner wall surface of the through hole 11 as described above,
After preheating the contact surface 3a of the melting flange portion 3 and the taper portion 4, the contact surface 3a of the joint 1 is brought into contact with the pedestal portion 12a for heat fusion, and the taper portion 4 is attached to the inner wall surface of the through hole 11. Heat seal.
【０００６】[0006]
【発明が解決しようとする課題】以上のように、従来曲
面形状を有する容器壁部１０の貫通孔１１に継手１を熱
融着させる場合、予め貫通孔１１の周りに平坦な面を有
する台座部１２ａを形成しておき、この面に継手１の溶
融フランジ部３の当接面３ａを当接させ熱融着させてい
る。このような台座部１２ａの形成により、当接面３ａ
の平坦な面と、台座部１２ａの平坦な面とが当接するの
で、容器壁部１０に対する継手１の溶融フランジ部３の
密着性を良好にすることができる。As described above, when the joint 1 is heat-sealed to the through hole 11 of the conventional container wall 10 having a curved surface shape, the pedestal having a flat surface around the through hole 11 in advance. The part 12a is formed in advance, and the contact surface 3a of the fusion flange part 3 of the joint 1 is brought into contact with this surface and heat-sealed. By forming such a pedestal portion 12a, the contact surface 3a
Since the flat surface of 1 and the flat surface of the pedestal portion 12a are in contact with each other, the adhesion of the melting flange portion 3 of the joint 1 to the container wall portion 10 can be improved.
【０００７】しかしながら、このような台座部１２ａの
形成により、図６に示されるように容器壁部１０に肉薄
部分１０ａが形成されてしまうという問題があった。こ
のような肉薄部分１０ａの存在により、継手１が取り付
けられている周辺部分において強度の弱い部分が生じ、
継手１に衝撃が加わったり容器内の液圧等により、この
ような肉薄部分１０ａに外力が加わり破損を生じるおそ
れがあった。However, due to the formation of the pedestal portion 12a, there is a problem that a thin portion 10a is formed on the container wall portion 10 as shown in FIG. Due to the presence of such a thin portion 10a, a weak portion is generated in the peripheral portion where the joint 1 is attached,
There is a possibility that an external force may be applied to such a thin portion 10a due to an impact applied to the joint 1 or a liquid pressure in the container to cause damage.
【０００８】本発明の目的は、このような従来の問題点
を解消し、容器壁部に肉薄部分を形成させることなく、
密着性よく融着させることのできる、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 form a thin portion on the wall of the container,
It is an object of the present invention to provide a joint for a container, which is made of a thermoplastic resin and can be fused with good adhesion.
【０００９】[0009]
【課題を解決するための手段】本発明の継手は、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、貫通孔周辺の壁部に当接して熱融着されるフラン
ジ部を有し、該フランジ部の当接面が容器の壁部に沿う
曲面形状に形成されていることを特徴としている。The joint of the present invention is a tubular joint made of thermoplastic resin which is attached by thermal fusion to a through hole formed in the wall of a container made of thermoplastic resin. It is characterized in that it has a flange portion that abuts on the wall portion around the hole and is heat-sealed, and the abutting surface of the flange portion is formed into a curved shape along the wall portion of the container.
【００１０】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 between 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.
【００１１】[0011]
【作用】本発明に従えば、貫通孔周辺の壁部に当接して
熱融着されるフランジ部の当接面が容器の壁部に沿う曲
面形状を有している。従って、従来のように貫通孔に台
座部を形成せずとも、継手の溶融フランジ部の当接面を
密着性よく貫通孔周辺の壁部に当接させることができ
る。このため壁部に肉薄部分が形成されず、従って、継
手を取り付けた取付け部分の機械的強度を低下させるこ
となく、継手を容器壁部に密着して熱融着させることが
できる。According to the present invention, the contact surface of the flange portion, which is in contact with the wall portion around the through hole and is heat-sealed, has a curved shape along the wall portion of the container. Therefore, the contact surface of the melting flange portion of the joint can be brought into close contact with the wall portion around the through hole without forming a pedestal portion in the through hole as in the conventional case. Therefore, a thin portion is not formed on the wall portion, so that the joint can be closely adhered to the container wall portion and heat-sealed without lowering the mechanical strength of the attachment portion to which the joint is attached.
【００１２】[0012]
【実施例】図１は、本発明に従う一実施例の継手を示す
側面図であり、図２は断面図である。図１及び図２を参
照して、この継手２１はポリエチレン等の熱可塑性樹脂
から形成されている。図２に示すように、この継手２１
は筒状に形成されており、中央部には貫通孔２５が形成
されている。継手２１の一方端部には、配管等を取り付
ける際に用いる取付フランジ部２２が形成されている。
また他方端部には、熱可塑性樹脂からなる容器壁部に取
付ける際に熱融着される融着フランジ部２３が形成され
ている。容器壁部と当接する融着フランジ部２３の当接
面２３ａは、図１及び図２に示すように、曲面形状を有
している。融着フランジ部２３からは、さらに容器壁部
の貫通孔に融着されるテーパー部２４が形成されてい
る。1 is a side view showing a joint of an embodiment according to the present invention, and FIG. 2 is a sectional view. Referring to FIGS. 1 and 2, this joint 21 is made of a thermoplastic resin such as polyethylene. As shown in FIG. 2, this joint 21
Is formed in a tubular shape, and a through hole 25 is formed in the central portion. At one end of the joint 21, a mounting flange portion 22 used when mounting a pipe or the like is formed.
At the other end, a fusion-bonding flange portion 23, which is heat-fused when attached to a container wall made of a thermoplastic resin, is formed. The contact surface 23a of the fusion-bonding flange portion 23 that contacts the container wall portion has a curved surface shape, as shown in FIGS. A taper portion 24 that is fused to the through hole of the container wall is formed from the fusion flange portion 23.
【００１３】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２１が取り付けら
れる部分には、貫通孔１１が形成されている。また、容
器壁部１０は、円形ポリタンク等の一部であり、曲面形
状を有している。従って、貫通孔１１の周辺部１１ａも
同様に円形の曲面形状を有している。継手２１の溶融フ
ランジ部２３の当接面２３ａは、このような貫通孔１１
の周辺部１１ａに沿う曲面形状を有している。また、本
実施例において、継手２１のテーパー部２４の先端部の
直径は、貫通孔１１の直径よりも小さく、テーパー部２
４の根元部の直径は貫通孔１１の直径よりも大きくなる
ように設定されている。このようにテーパー部２４の先
端部の直径を貫通孔１１の直径よりも小さくすることに
より、継手２１のテーパー部２４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。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 21 is attached. The container wall 10 is a part of a circular plastic tank or the like and has a curved shape. Therefore, the peripheral portion 11a of the through hole 11 also has a circular curved surface shape. The contact surface 23a of the fusion flange portion 23 of the joint 21 has such a through hole 11
It has a curved shape along the peripheral portion 11a. Further, in the present embodiment, the diameter of the tip portion of the tapered portion 24 of the joint 21 is smaller than the diameter of the through hole 11, and the tapered portion 2
The diameter of the root portion of No. 4 is set to be larger than the diameter of the through hole 11. By making the diameter of the tip end portion of the tapered portion 24 smaller than the diameter of the through hole 11 as described above, when the tapered portion 24 of the joint 21 is fitted into the through hole 11, the positioning thereof becomes easier.
【００１４】継手２１を容器壁部１０の貫通孔１１の周
辺部１１ａに熱融着させる際には、予め貫通孔１１の周
辺部１１ａ及び継手２１の融着フランジ部２３の当接面
２３ａ及びテーパー部２４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行うことがで
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２１のテーパー部２４及び当接面２３ａを、容器壁
部１０の貫通孔１１の加熱された周辺部１１ａに押し当
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１１ａ及び継手２
１の当接面２３ａ及びテーパー部２４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。When the joint 21 is heat-sealed to the peripheral portion 11a of the through-hole 11 of the container wall 10, the peripheral portion 11a of the through-hole 11 and the contact surface 23a of the fusion-bonding flange portion 23 of the joint 21 are The taper portion 24 is heated. 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 heating like this,
The tapered portion 24 and the contact surface 23a of the joint 21 are pressed against the heated peripheral portion 11a of the through hole 11 of the container wall portion 10. For example, it is pressed and pressed by a pressing force of about 65 kg / cm 2 . Peripheral part 11a of through hole 11 and joint 2
Since the one contact surface 23a and the tapered portion 24 are in a molten state, they are heat-sealed to each other by such pressing.
【００１５】このような熱融着の際、融着フランジ部２
３の当接面２３ａは、貫通孔１１の周辺部１１ａに沿う
曲面形状を有しており、当接面２３ａが貫通孔１１の周
辺部１１ａに密着して融着される。従って、高い融着強
度で継手２１を容器壁部１０に取り付けることができ
る。また、従来のように、貫通孔１１の周辺部分に台座
部を形成させることなく良好な密着性で接着させること
ができるので、貫通孔１１の周りの容器壁部１０の厚み
が均一であり、機械的強度が弱くなる肉薄部分を生じな
い。At the time of such heat fusion, the fusion bonding flange portion 2
The contact surface 23a of No. 3 has a curved surface shape along the peripheral portion 11a of the through hole 11, and the contact surface 23a is adhered and fused to the peripheral portion 11a of the through hole 11. Therefore, the joint 21 can be attached to the container wall 10 with high fusion strength. In addition, unlike the conventional case, since it can be bonded with good adhesion without forming a pedestal portion in the peripheral portion of the through hole 11, the thickness of the container wall portion 10 around the through hole 11 is uniform, It does not cause thinned parts that reduce the mechanical strength.
【００１６】以上のようにして、継手２１を容器壁部１
０の貫通孔１１に熱融着して取り付けることができる。
取付け後、継手２１に外部配管を取り付ける場合には、
例えば、取付フランジ部２２に、フランジ管継手等を用
いて外部配管を取り付けることができる。また継手の筒
内部に雌ねじ部を形成して、雄ねじ部を有した外部配管
や容器内の内部配管等を螺着して取り付けるようにして
もよい。さらに、継手２１の一方端部に雄ねじ部を形成
し、この雄ねじ部に雌ねじ部を有するような配管等を螺
着して取り付けてもよい。As described above, the joint 21 is attached to the container wall 1.
It can be attached by heat fusion to the through hole 11 of No. 0.
After installing, when attaching the external pipe to the fitting 21,
For example, an external pipe can be attached to the attachment flange portion 22 by using a flange pipe joint or the like. Further, a female screw portion may be formed inside the cylinder of the joint, and an external pipe having a male screw portion or an internal pipe in the container may be screwed and attached. Further, a male screw portion may be formed at one end of the joint 21 and a pipe or the like having a female screw portion may be screwed and attached to the male screw portion.
【００１７】本発明に従う継手は、上記実施例の構造及
び形状のものに限定されることはなく、融着フランジ部
の構造及び形状も上記実施例のものに限定されるもので
はない。本発明の継手は、容器壁部の貫通孔の周辺部に
当接して融着する当接面を有する継手であり、この当接
面が容器壁部の貫通孔周辺に沿う曲面形状を有していれ
ばよい。The joint according to the present invention is not limited to the structure and shape of the above-mentioned embodiment, and the structure and shape of the fusion bonding flange portion are not limited to those of the above-mentioned embodiment. The joint of the present invention is a joint having a contact surface that abuts and fuses with the peripheral portion of the through hole of the container wall portion, and this contact surface has a curved shape along the periphery of the through hole of the container wall portion. If you have.
【００１８】[0018]
【発明の効果】本発明の継手は、貫通孔周辺の壁部に当
接して熱融着されるフランジ部を有し、このフランジ部
の当接面が容器の壁部の貫通孔周辺に沿う曲面形状を有
している。従って、貫通孔周辺の壁部に密着してフラン
ジ部の当接面を熱融着して取り付けることができる。こ
のため、融着強度を高めることができ、また従来のよう
に台座部の形成により肉薄部分を生じることはない。The joint of the present invention has a flange portion which is abutted against and thermally fused to the wall portion around the through hole, and the contact surface of the flange portion extends along the periphery of the through hole of the wall portion of the container. It has a curved shape. Therefore, the abutting surface of the flange portion can be attached by heat fusion to the wall portion around the through hole. For this reason, the fusion strength can be increased, and a thin portion is not generated due to the formation of the pedestal portion unlike the conventional case.
【００１９】また、従来の継手では、台座部を形成する
ため貫通孔周辺に孔を形成する作業が必要であったが、
本発明の継手を用いればこのような台座部形成の作業が
不要となり、継手取付けの作業を大幅に簡略化すること
ができる。Further, in the conventional joint, it was necessary to form holes around the through holes to form the pedestal portion.
If the joint of the present invention is used, the work of forming the pedestal is unnecessary, and the work of mounting the joint can be greatly simplified.
【図１】本発明に従う一実施例の継手を示す側面図。FIG. 1 is a side 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断面図。FIG. 2 is a sectional 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側面図。FIG. 3 is a side view showing a joint of an embodiment according to the present invention and a container wall portion to which the joint is attached.
【図４】従来の継手の一例を示す側面図。FIG. 4 is a side view showing an example of a conventional joint.
【図５】従来の継手の一例を示す断面図。FIG. 5 is a sectional view showing an example of a conventional joint.
【図６】図４及び部５に示す従来の継手を容器壁部に取
り付ける時の状態を示す側面図。FIG. 6 is a side view showing a state in which the conventional joint shown in FIGS. 4 and 5 is attached to a container wall.
１０…容器壁部 １１…容器壁部の貫通孔 １１ａ…貫通孔の周辺部 ２１…継手 ２２…取付フランジ部 ２３…融着フランジ部 ２３ａ…融着フランジ部の当接面 ２４…テーパー部 DESCRIPTION OF SYMBOLS 10 ... Container wall part 11 ... Through hole of container wall part 11a ... Peripheral part of through hole 21 ... Joint 22 ... Attachment flange part 23 ... Fusion flange part 23a ... Abutting surface of fusion flange part 24 ... Tapered part
───────────────────────────────────────────────────── 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 // Ｂ６５Ｄ 25/38 Ｂ２９Ｌ 23:00 ─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. 6 Identification number Office reference number FI technical display location // B65D 25/38 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、 前記貫通孔周辺の壁部に当接して熱融着されるフランジ
部を有し、該フランジ部の当接面が前記容器の壁部に沿
う曲面形状に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 thermoplastic resin, which is attached by thermal fusion to a through hole formed in a wall portion of a container made of a thermoplastic resin, and is in contact with a wall portion around the through hole. A thermoplastic resin container joint, characterized in that it has a flange portion which is heat-sealed, and the contact surface of the flange portion is formed into a curved shape along the wall portion of the container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6038212A JPH07243562A (en) | 1994-03-09 | 1994-03-09 | Joint for vessel of thermoplastic resin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6038212A JPH07243562A (en) | 1994-03-09 | 1994-03-09 | Joint for vessel of thermoplastic resin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07243562A true JPH07243562A (en) | 1995-09-19 |
Family
ID=12519016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6038212A Pending JPH07243562A (en) | 1994-03-09 | 1994-03-09 | Joint for vessel of thermoplastic resin |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07243562A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021031097A (en) * | 2019-08-22 | 2021-03-01 | ダイプラ株式会社 | Storage tank, and manufacturing method of storage tank |
-
1994
- 1994-03-09 JP JP6038212A patent/JPH07243562A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021031097A (en) * | 2019-08-22 | 2021-03-01 | ダイプラ株式会社 | Storage tank, and manufacturing method of storage tank |
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