JPH0373331A - Method for extending welded end - Google Patents

Method for extending welded end

Info

Publication number
JPH0373331A
JPH0373331A JP1185670A JP18567089A JPH0373331A JP H0373331 A JPH0373331 A JP H0373331A JP 1185670 A JP1185670 A JP 1185670A JP 18567089 A JP18567089 A JP 18567089A JP H0373331 A JPH0373331 A JP H0373331A
Authority
JP
Japan
Prior art keywords
welded
valve
bag
parts
attached
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
JP1185670A
Other languages
Japanese (ja)
Inventor
Masao Tootsu
政夫 遠津
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.)
S P CHEM KK
Original Assignee
S P CHEM KK
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 S P CHEM KK filed Critical S P CHEM KK
Priority to JP1185670A priority Critical patent/JPH0373331A/en
Publication of JPH0373331A publication Critical patent/JPH0373331A/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
    • 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
    • B29C66/1122—Single lap to lap joints, i.e. overlap 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
    • B29C66/133—Fin-type joints, the parts to be joined being flexible
    • 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
    • B29C66/5326—Joining single elements to the wall of tubular articles, hollow articles or bars said single elements being substantially flat
    • B29C66/53261—Enclosing tubular articles between substantially flat elements
    • 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
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/24—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight
    • B29C66/242—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)
  • Making Paper Articles (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

PURPOSE:To enhance the preventing capability against longitudinal tearing due to expansion force and make high pressure filling possible by a method wherein a welded end, to which a valve is attached, is formed into a plurality of projected parts and recessed parts in a flexible synthetic resin film valve bag. CONSTITUTION:A valve 2 is inserted in a bag 1 and attached by welded parts 3. At welded ends, to which the valve 2 is attached, a plurality of projected parts and recessed parts are formed at both the sides of the valve 2 intersecting the welded parts 3. Thus, even though each welded part 3 normally has about 10mm in width, the formation of each welded part having the width 2 times and more as large as that of the normal welded part results. At the same time, since the welded part is not rectilinear but rugged, the preventing function against separation is enhanced.

Description

【発明の詳細な説明】 （産業上の利用分野） 本発明は柔軟な合成樹脂製フィルムで形成された弁袋に
於いて、特に高圧充填に耐える弁の取り付は方法に関す
る。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a valve bag made of a flexible synthetic resin film, and more particularly to a method for installing a valve that can withstand high pressure filling.

（従来の技術） 従来、この種の弁取り付けは通常１０ｍｍ巾程度迄の溶
着が普通であるが内圧を継続して高圧に維持する場合は
時間が経過するに従って拡張力が溶着端に作用し、剥離
が進む現象が現はれる。(Prior art) Conventionally, when installing this type of valve, it is common to weld up to a width of about 10 mm, but when the internal pressure is continuously maintained at a high pressure, an expanding force acts on the welded end as time passes. A phenomenon in which peeling progresses appears.

しかし乍ら溶着部を上記以上は広げれば内容積を侠くす
るから本来の収納目的から逸脱する事となる。However, if the welded portion is expanded beyond the above range, the internal volume will be reduced, which will deviate from the original purpose of storage.

（問題点を解決する為の手段） 本発明は上記した点に鑑みてなされたものであって、溶
着端を複数個の凹凸に形成する事に依り事実上溶着端の
巾を広げたε開様の効果を得る様にし、且つ剥離抵抗度
を高めたのである。(Means for Solving the Problems) The present invention has been made in view of the above-mentioned points, and the present invention has been made in view of the above-mentioned points. This resulted in similar effects and increased peel resistance.

以下１図に基づいて説明すれば袋〈１〉には弁（２）が
挿入され、溶着部（３）で取り付けられている。Referring to Figure 1 below, a valve (2) is inserted into the bag <1> and attached by a welded part (3).

通常溶着端（４）はｌＯ問中程度迄であり第一図に示す
様に直線に形成されている。この場合例えば水等を入れ
た程度の内圧であれば問題無いが、内圧を継続して高圧
に維持する必要がある様な使用方法の場合は、狭巾且つ
直線の為に内圧に依る拡張力が溶着端り４）に作用して
剥離が進み破袋するのである。Usually, the welded end (4) is about 10 to 100 liters, and is formed in a straight line as shown in Figure 1. In this case, for example, there is no problem if the internal pressure is the same as that of water, etc., but if the internal pressure needs to be continuously maintained at a high pressure, the expansion force due to the internal pressure due to the narrow width and straight line. acts on the welded edges 4), causing the peeling to progress and the bag to break.

本発明に係る溶着端（４）は第二図に示す様に溶着部り
う）に交わる弁（２）の両側は複数個の凹凸を形成して
いるから５溶着部（３）が同じｌｈｉ巾であっても溶着
端（４）は結果的番こ２倍以上の溶着端を形成した事と
同じであり、且つ直線でなく、凹凸状である為離剥に対
する防止機能は、より向上されている。As shown in Figure 2, the welded end (4) according to the present invention has a plurality of unevenness formed on both sides of the valve (2) that intersects with the welded part (2), so that the five welded parts (3) have the same lhi width. Even so, the welded end (4) is the same as forming a welded end that is more than twice the number as a result, and since it is not a straight line but has an uneven shape, the prevention function against peeling is further improved. There is.

（９ｊｊ果） 以上述べた様に本発明は、狭巾の溶着でも、巾広の溶着
と同等の効果を有し且つ屈曲線を形成しているから拡張
力に依る縦裂きにも防止能力を向上させたものであり、
従来不可能とされていた高圧充填が出来る事となり、そ
の効果は計り知れないものである。(Result 9j) As described above, the present invention has the same effect even with narrow welding as wide welding, and because it forms a bending line, it also has the ability to prevent vertical tearing due to expansion force. It is an improved
High-pressure filling, which was previously considered impossible, is now possible, and its effects are immeasurable.

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

第１図は通常対圧用の弁袋の一実施例を示す一部切り欠
き平面図、 第２図は第１図に示す円内部の本発明の一実施例を示す
拡大図、 第３図は第２図のＡ−Ａ線に沿う断面図である。 ■・・・袋 ２・・・弁 ３・・・溶着部 ４・・・溶着端Fig. 1 is a partially cutaway plan view showing an embodiment of a valve bag for normal counterpressure; Fig. 2 is an enlarged view showing an embodiment of the present invention inside the circle shown in Fig. 1; FIG. 3 is a sectional view taken along line A-A in FIG. 2; ■...Bag 2...Valve 3...Welded part 4...Welded end

Claims (1)

【特許請求の範囲】[Claims] 柔軟な合成樹脂製フィルムを二枚重ねにし三方端を溶着
してなる袋の開口部の１箇所に柔軟な合成樹脂製フィル
ムで構成された弁の注入口を袋の上部に若干突出し、排
出口を袋の内部に突出させた状態で挿入して取り付けた
弁袋に於いて、二枚重ねの袋部と弁を挿入した事に依り
四枚重ねとなった両側の段差部の溶着端を複数個の凹凸
にした事を特徴とする溶着端の延長方法。The inlet of a valve made of flexible synthetic resin film is slightly protruded from the top of the bag at one point in the opening of the bag, which is made by stacking two sheets of flexible synthetic resin film and welding the ends on three sides, and the outlet is connected to the bag. In the valve bag that was inserted and attached with it protruding inside, the welded ends of the stepped parts on both sides of the two-layered bag part and the valve were inserted into four layers, and the welded ends were formed into multiple unevenness. A method for extending a welded end.
JP1185670A 1989-07-18 1989-07-18 Method for extending welded end Pending JPH0373331A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1185670A JPH0373331A (en) 1989-07-18 1989-07-18 Method for extending welded end

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1185670A JPH0373331A (en) 1989-07-18 1989-07-18 Method for extending welded end

Publications (1)

Publication Number Publication Date
JPH0373331A true JPH0373331A (en) 1991-03-28

Family

ID=16174820

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1185670A Pending JPH0373331A (en) 1989-07-18 1989-07-18 Method for extending welded end

Country Status (1)

Country Link
JP (1) JPH0373331A (en)

Similar Documents

Publication Publication Date Title
US5746873A (en) Process for producing an air mattress with a pump part and a part to be inflated
US1812151A (en) Method of welding
US20060159372A1 (en) Zipper for transverse direction front panel pouch
CA2116154C (en) Orderly packing for a column
US5699856A (en) Bank of plates for heat exchanger and method of assembling such a bank of plates
US4308885A (en) Tubular safety element for closing a flow line
JPH07503312A (en) welded plate heat exchanger
JPH02116305A (en) Bag and its production
JPH07120181A (en) Flat tube for heat-exchanger
US6027394A (en) One way valve for inflatables and process for production and incorporation in the inflatable
JPS59204566A (en) Ink bag of ink cartridge in one-demand type ink jet printer
JPH10508082A (en) Multilayer metal gasket with double bead combustion seal
JP2003063561A (en) Packaging bag
JPH0373331A (en) Method for extending welded end
GB1561268A (en) Cartons and methods of forming them
JPS6224867Y2 (en)
US20080105366A1 (en) Method for producing plastic products with reinforced heat sealed joints
EP3527355B1 (en) Welding rib structure
EP0493953B1 (en) A metal plate with intersecting beads
JP3880679B2 (en) LAMINATED METAL SHEET BONDING METHOD AND PRESS MOLD FOR USE IN THE METHOD
JP2001048193A5 (en)
JPH06697Y2 (en) Check valve
JPH11171172A (en) Zipper-cut corrugated board box
DE20003500U1 (en) Steering wheel gas bag
JPH0363630B2 (en)