JPS60242039A - Production of plastic hollow body - Google Patents

Production of plastic hollow body

Info

Publication number
JPS60242039A
JPS60242039A JP60027924A JP2792485A JPS60242039A JP S60242039 A JPS60242039 A JP S60242039A JP 60027924 A JP60027924 A JP 60027924A JP 2792485 A JP2792485 A JP 2792485A JP S60242039 A JPS60242039 A JP S60242039A
Authority
JP
Japan
Prior art keywords
plastic hollow
plastic
blow molding
hollow body
tank body
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
Application number
JP60027924A
Other languages
Japanese (ja)
Inventor
Yasuo Tanaka
康雄 田中
Tsutomu Hongo
本郷　勤
Kiyotaka Kawai
清隆 河合
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kyoraku Co Ltd
Original Assignee
Kyoraku Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kyoraku Co Ltd filed Critical Kyoraku Co Ltd
Priority to JP60027924A priority Critical patent/JPS60242039A/en
Publication of JPS60242039A publication Critical patent/JPS60242039A/en
Pending legal-status Critical Current

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
    • B29C65/06—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using friction, e.g. spin welding
    • 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
    • B29C66/114—Single butt joints
    • B29C66/1142—Single butt to butt 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
    • B29C66/12—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
    • B29C66/1224—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 butt 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
    • B29C66/124—Tongue and groove joints
    • B29C66/1244—Tongue and groove joints characterised by the male part, i.e. the part comprising the tongue
    • B29C66/12441—Tongue and groove joints characterised by the male part, i.e. the part comprising the tongue being a single wall
    • 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
    • B29C66/124—Tongue and groove joints
    • B29C66/1246—Tongue and groove joints characterised by the female part, i.e. the part comprising the groove
    • B29C66/12469—Tongue and groove joints characterised by the female part, i.e. the part comprising the groove being asymmetric
    • 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
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • 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
    • 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
    • B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
    • 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
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/712—Containers; Packaging elements or accessories, Packages

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

PURPOSE:To easily produce the main body of a plastic hollow body with a projected body irrespectively of the shape of the projected body or the bonding position, by a method wherein a projected body molded separately from a main body of a plastic hollow body obtained by blow molding is brought into contact with the main body, and is bonded to the main body by vibrational welding. CONSTITUTION:For example, an outside wall 2a of a bonding part 6 of the main body 2 of the plastic hollow body obtained by blow molding is cut away to provide an opening part 2b, then the projected body 5 molded separately from the main body 2 is brought into contact with the bonding part 6, and is bonded to the part 6 by vibrational welding to obtain the plastic hollow body 1 provided with the projected body 5.

Description

【発明の詳細な説明】 本発明はプラスチック中空体の製造方法に係りさらに詳
しくは中空本体に突出体を接合したプラスチック中空体
の製造方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a hollow plastic body, and more particularly to a method for manufacturing a hollow plastic body in which a protrusion is joined to a hollow body.

従来プラスチックからなる中空体、例えばタンク、ボト
ル、ケースやダクトなどを製造する方法としてブロー成
形が多用されている。しかし、中空体に突起物、例えば
取付用ブラケットや内容物の注入部、注出部を形成する
場合、ブロー成形時に一体に形成することが望ましいが
、種々の制約がある。すなわち、パーティングライン上
に突出体を形成するならば比較的容易に形成できるが、
パーティングライン以外の外側面に突起物を形成する場
合、突起物の肉厚が種度に薄肉化しまた形状が限定され
、場合によっては突起物がアンダーカットとなって製造
できない欠点がある。さらにパーティングライン上に突
起物を形成しても、その表面にはパーティングライン跡
が残り、切削などの二次加工が必要であった。またブロ
ー形成時に別体の突出体をインサートする方法があるが
、インサート位置に制約があるばかりか、中空体の成形
効率を低下させ、さらに接合強度が充分でないなどの欠
点があった。BACKGROUND OF THE INVENTION Conventionally, blow molding has been widely used as a method for manufacturing hollow bodies made of plastic, such as tanks, bottles, cases, and ducts. However, when forming protrusions such as mounting brackets, injection parts, and spout parts for the contents in the hollow body, it is desirable to form them integrally during blow molding, but there are various restrictions. In other words, if the protrusion is formed on the parting line, it can be formed relatively easily;
When a protrusion is formed on the outer surface other than the parting line, the thickness of the protrusion becomes extremely thin, the shape is limited, and in some cases, the protrusion becomes an undercut, making it impossible to manufacture the protrusion. Furthermore, even if protrusions are formed on the parting line, parting line marks remain on the surface, requiring secondary processing such as cutting. There is also a method of inserting a separate protruding body during blow forming, but this method not only imposes restrictions on the insert position, but also has drawbacks such as lowering the molding efficiency of the hollow body and insufficient bonding strength.

本発明は上述の点に鑑みなされたものであり、本体に突
出体を接合したプラスチック中空体の製造方法を提供す
るものである。The present invention has been made in view of the above points, and provides a method for manufacturing a plastic hollow body in which a protrusion is joined to a main body.

以下、本発明を一実施例として示した車輌用オイルタン
クを製造する方法に基づいて詳述する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below based on a method of manufacturing a vehicle oil tank as an example.

第１図において１は本発明の製造方法にて得られた車輌
用オイルタンクである。タンク本体２は後述するブロー
成形にて成形され、３はタンク本体２のブロー成形時一
体に形成した注入部、４はブロー成形時のパーティング
ラインである。５は射出成形などにてタンク本体２とは
別体に成形した注出部であり、タンク本体２の外側面に
後述する振動溶接にて一体に接合されている。また６は
タンク本体２と注出部５の接合部である。In FIG. 1, 1 is a vehicle oil tank obtained by the manufacturing method of the present invention. The tank body 2 is molded by blow molding, which will be described later. Reference numeral 3 designates an injection part formed integrally with the tank body 2 during blow molding, and 4 designates a parting line during blow molding. Reference numeral 5 denotes a pouring portion formed separately from the tank body 2 by injection molding or the like, and is integrally joined to the outer surface of the tank body 2 by vibration welding, which will be described later. Further, 6 is a joint between the tank body 2 and the pouring portion 5.

ついで、第１図に示した車輌用オイルタンク１を製造す
る方法について説明する。第２図において、溶融された
ポリエチレン、ポリプロピレン。Next, a method for manufacturing the vehicle oil tank 1 shown in FIG. 1 will be explained. In FIG. 2, melted polyethylene and polypropylene.

ポリアミドなどの熱可塑性プラスチックは押出−・ソド
７よりパリスン８として押出される。ついでこのパリス
ン８を挾持するよう内部にキャビティー９を有する分割
形式の金型１０を閉鎖し、吹込ノズル１１より圧縮空気
などの圧力流体を閉鎖したパリメン８内に吹込み、バリ
スン８をキャビティー９に対応した形状に吹膨する。つ
いで冷却した後成形品を取出し、余剰のパリを除去して
注入部３をパーティングライン４上に有するタンク本体
２を得る。またブロー成形時注出部５の接合部６に相当
するタンク本体２の外側壁を後述のように任意に形成し
ておくことも可能である。つぎに第３図（Ａ）に示すよ
うに注出部５の接合部６に相当するタンク本体２の外側
壁２ａを切断して除去し、開口部２ｂを形成する。この
とき、開口部２ｂを注出部５の接合端面と同形状にし、
注出部５が圧接できるよう該注出部５の内径と対応する
開口部２ｂを形成するのが後述する振動溶接のために好
ましい。つぎにタンク本体２に射出成形などにてタンク
本体とは別体に成形した注出部５を接合する方法を説明
する。第４図は振動溶接装置にタンク本体２と注出部５
を当接した状態で静止治具１２、振動冶具１３にて固定
した状態を示するものであり、静止治具１２、振動治具
１３は電磁石１４によって相互に振動するとともに、タ
ンク本体２と注出部５との接合部はつねに圧力が加えら
れている。振動はタンク本体２と注出部５とを相互的に
運動させることにより、接合部６に摩擦を生じせしめ、
該接合部６の温度を接合するプラスチックの溶融点以上
に上昇させて溶融する。A thermoplastic such as polyamide is extruded from an extruder 7 as a parison 8. Next, a split-type mold 10 having a cavity 9 inside is closed to hold the parison 8, and a pressure fluid such as compressed air is blown into the closed parison 8 from the blowing nozzle 11, and the parison 8 is inserted into the cavity. Blow it into a shape corresponding to 9. Then, after cooling, the molded product is taken out and excess paris is removed to obtain a tank body 2 having the injection part 3 on the parting line 4. Further, it is also possible to form the outer wall of the tank body 2, which corresponds to the joint part 6 of the pouring part 5 during blow molding, as desired as described below. Next, as shown in FIG. 3A, the outer wall 2a of the tank body 2 corresponding to the joint 6 of the pouring part 5 is cut and removed to form an opening 2b. At this time, the opening 2b is made in the same shape as the joint end surface of the spouting part 5,
For vibration welding, which will be described later, it is preferable to form an opening 2b corresponding to the inner diameter of the spouting part 5 so that the spouting part 5 can be pressed into contact therewith. Next, a method of joining the spouting part 5, which is formed separately from the tank body by injection molding or the like, to the tank body 2 will be explained. Figure 4 shows the tank body 2 and spout 5 in a vibration welding device.
This shows a state in which the stationary jig 12 and the vibrating jig 13 are used to fix the stationary jig 12 and the vibrating jig 13 in a state in which the Pressure is always applied to the joint with the outlet 5. The vibration causes the tank body 2 and the pouring part 5 to move relative to each other, thereby causing friction in the joint part 6,
The temperature of the joining portion 6 is raised to a temperature higher than the melting point of the plastic to be joined, and the plastic is melted.

ついで加圧状態下でタンク本体２と注出部５の相互位置
を正しく位置させて振動を停止する。その後摩擦熱によ
って生じた接合部６の溶融状態が完全に固化状態になる
まで加圧を続け、接合部６が固化した後静止治具１２．
振動治具１３を取り外し第１図に示すような注出部を形
成した車輌用タンクｌを得る。Then, under pressurized conditions, the tank body 2 and the spouting part 5 are properly positioned relative to each other, and the vibrations are stopped. Thereafter, pressurization is continued until the molten state of the joint 6 caused by frictional heat becomes completely solidified, and after the joint 6 is solidified, the stationary jig 12.
The vibrating jig 13 is removed to obtain a vehicle tank l having a pouring portion as shown in FIG.

本発明にて使用される振動溶接は振動により接合部６に
発生する摩擦熱を利用して溶接するものであり、例えば
回転運動２回転往復運動、直線往復運動にて摩擦熱を発
生させるものである。またタンク本体２の開口部２ｂは
注出部５の接合端面と同形状に、また該注出部５の内径
と対応するよう形成すれば、振動溶接時の加圧が容易に
行なえ注出部を堅固に且つ正確に形成することができる
。The vibration welding used in the present invention is a type of welding that utilizes frictional heat generated in the joint 6 due to vibration, and for example, frictional heat is generated by rotational motion, two-turn reciprocating motion, or linear reciprocating motion. be. Furthermore, if the opening 2b of the tank body 2 is formed to have the same shape as the joint end surface of the spout 5 and to correspond to the inner diameter of the spout 5, pressure can be easily applied during vibration welding. can be formed firmly and accurately.

第５図（Ａ）、（Ｂ）、（Ｃ）はタンク本体２と注出部
５との接合構成の他例を示すものであり、（Ａ）はタン
ク本体２の接合部６を凹設し、外面に規制壁１５を設け
た構成、（Ｂ）は内面に規制壁１５を突出した構成、（
Ｃ）は接合部６を凹設して外面に規制壁１５を設は且つ
内面に規制壁を突出した構成を示すものである。上記の
如くブロー成形時注出部５の接合部６に相当するタンク
本体２の外側壁に規制壁１５を設けることにより、容易
に接合箇所を指示し振動溶接装置がずれることがなくま
た得られた車輌用オイルタ′ンクも堅固なものとなる。5(A), (B), and (C) show other examples of the joint structure between the tank body 2 and the pouring part 5, and (A) shows a joint structure in which the joint part 6 of the tank body 2 is recessed. (B) is a configuration in which a regulation wall 15 is provided on the outer surface, (B) is a configuration in which a regulation wall 15 is protruded on the inner surface, (
C) shows a configuration in which the joint portion 6 is recessed, a regulating wall 15 is provided on the outer surface, and the regulating wall protrudes from the inner surface. By providing the regulating wall 15 on the outer wall of the tank body 2 corresponding to the joint 6 of the pouring part 5 during blow molding as described above, it is possible to easily indicate the joint location and prevent the vibration welding device from shifting. The oil tank for vehicles also becomes more robust.

本発明の方法にて得られるプラスチック中空本体とは、
上述したダイレクトブロー成形のほかに公知のブロー成
形法にて形成される中空体を総称するものであり、突出
体は上述した筒状の注出部のほかに、中実状の取付用ブ
ラケットなど所望により適宜の形状のものが使用できる
。さらに中空本体と突出体とを構成するプラスチックは
ポリエチレン２ポリプロピレン、ポリアミド、ＡＢＳな
どの熱可塑性プラスチックが使用でき、中空本体と突出
体と同質のプラスチックを使用するのが望ましい。The plastic hollow body obtained by the method of the present invention is
In addition to the above-mentioned direct blow molding, this is a general term for hollow bodies formed by known blow molding methods.In addition to the above-mentioned cylindrical pouring part, the protruding body may be a solid mounting bracket or other desired shape. Depending on the shape, a suitable shape can be used. Furthermore, thermoplastics such as polyethylene 2 polypropylene, polyamide, ABS, etc. can be used as the plastic constituting the hollow body and the protruding body, and it is preferable to use the same plastic as the hollow body and the protruding body.

第６図はタンク本体２の外側壁にブロー成形時凹接した
接合部６を形成し外周に規制壁１５を形成し、該規制壁
１５内の接合部６にブラケット１６を当接させて接合す
る構成を示すものであり、第７図はタンク本体２の接合
部６周辺の外側壁をブロー成形時凸設して規制壁１５を
設けた構成を示すものである。In FIG. 6, a joint 6 is formed on the outer wall of the tank body 2 in concave contact during blow molding, a regulating wall 15 is formed on the outer periphery, and a bracket 16 is brought into contact with the joint 6 in the regulating wall 15 to join the tank body. FIG. 7 shows a configuration in which a regulating wall 15 is provided by protruding the outer wall around the joint 6 of the tank body 2 during blow molding.

本発明の製造方法は上記のようにプラスチック中空本体
をブロー成形にて成形し、該本体の外側壁に本体とは別
体に成形した突出体を当接して振動溶接にて接合するも
のであり、突出体の形状や接合位置が何ら制約されるこ
となく突出体をプラスデック中空本体に形成することが
でき、また注入部、注出部や取付用ブラケットなど突出
体を突設したプラスチック中空体を容易に製造すること
ができる。In the manufacturing method of the present invention, a hollow plastic body is molded by blow molding as described above, and a protruding body formed separately from the body is brought into contact with the outer wall of the body and joined by vibration welding. , the protruding body can be formed on the plastic hollow body without any restrictions on the shape or joining position of the protruding body, and it is also possible to form the protruding body on the plastic hollow body such as the injection part, pouring part, mounting bracket, etc. can be easily manufactured.

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本発明にて得られた車輌用タンクの斜視図、第
２図はタンク本体のブロー変形工程を断面にて示す略図
、第３図（Ａ）、（Ｂ）はタンク本体と注出部の接合前
と接合後を示す部分断面図、第４図は振動溶接工程を断
面にて示す略図、第５図（Ａ）、（Ｂ）、（Ｃ）はタン
ク本体と注出部の接合構成の他側を示す部分断面図、第
６図、第７図は本発明にて得られたブラケット付きタン
クの分解斜視図である。 １、車輌用タンク　６．接合部 ２、タンク本体　１５．規制壁 ５、注出部　１６．ブラケント 特許出願人 キョーラク株式会社 第１図 （Ａ）　（Ｂ”） 第２図 ａ 第４図 第５図 （Ａ） （Ｃ） 第６図 第１図Figure 1 is a perspective view of a vehicle tank obtained by the present invention, Figure 2 is a cross-sectional diagram showing the blow deformation process of the tank body, and Figures 3 (A) and (B) are the tank body and A partial sectional view showing the spout before and after joining, Figure 4 is a schematic cross-sectional view showing the vibration welding process, and Figures 5 (A), (B), and (C) are the tank body and the spout. A partial sectional view showing the other side of the joint structure, and FIGS. 6 and 7 are exploded perspective views of a tank with a bracket obtained by the present invention. 1. Vehicle tank 6. Joint part 2, tank body 15. Regulation wall 5, pouring part 16. Brakent patent applicant Kyoraku Co., Ltd. Figure 1 (A) (B”) Figure 2 a Figure 4 Figure 5 (A) (C) Figure 6 Figure 1

Claims (1)

【特許請求の範囲】 １）プラスチック中空本体をブロー成形にて成形し、該
本体の外側壁に本体とは別体に成形した突出体を当接し
、振動溶接にて接合したことを特徴とするプラスチック
中空体の製造方法。 ２）突出体を当接する箇所に該突出体の位置を規制する
規制壁を形成したプラスチック中空本体をブロー成形に
て成形し、該規制壁内に突出体を当接する特許請求の範
囲第１項記載のプラスチック中空体の製造方法。 ３）本体の外側壁の一部分を切除して開口部を形成し、
該開口部に筒状の突出体を当接する特許請求の範囲第１
項記載のプラスチック中空体の製造方法。[Claims] 1) A hollow plastic body is molded by blow molding, and a protruding body molded separately from the body is brought into contact with the outer wall of the body and joined by vibration welding. Method of manufacturing a plastic hollow body. 2) A plastic hollow body is formed by blow molding and has a regulating wall that regulates the position of the protruding body formed at the part where the protruding body abuts, and the protruding body abuts within the regulating wall, as claimed in claim 1. The method for manufacturing the described plastic hollow body. 3) cutting off a portion of the outer wall of the main body to form an opening;
Claim 1, in which a cylindrical protrusion is brought into contact with the opening.
2. Method for manufacturing a hollow plastic body as described in Section 1.
JP60027924A 1985-02-15 1985-02-15 Production of plastic hollow body Pending JPS60242039A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP60027924A JPS60242039A (en) 1985-02-15 1985-02-15 Production of plastic hollow body

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60027924A JPS60242039A (en) 1985-02-15 1985-02-15 Production of plastic hollow body

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP10951477A Division JPS5443269A (en) 1977-09-13 1977-09-13 Method of making plastics hollow body

Publications (1)

Publication Number Publication Date
JPS60242039A true JPS60242039A (en) 1985-12-02

Family

ID=12234432

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60027924A Pending JPS60242039A (en) 1985-02-15 1985-02-15 Production of plastic hollow body

Country Status (1)

Country Link
JP (1) JPS60242039A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4892466A (en) * 1972-03-11 1973-11-30
JPS4985154A (en) * 1972-12-21 1974-08-15

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4892466A (en) * 1972-03-11 1973-11-30
JPS4985154A (en) * 1972-12-21 1974-08-15

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