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JPH0193328A - Method for manufacturing cylindrical containers - Google Patents

Method for manufacturing cylindrical containers

Info

Publication number
JPH0193328A
JPH0193328A JP62250733A JP25073387A JPH0193328A JP H0193328 A JPH0193328 A JP H0193328A JP 62250733 A JP62250733 A JP 62250733A JP 25073387 A JP25073387 A JP 25073387A JP H0193328 A JPH0193328 A JP H0193328A
Authority
JP
Japan
Prior art keywords
end plate
vessel
side wall
cylindrical
inner bag
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
JP62250733A
Other languages
Japanese (ja)
Inventor
Koichi Akimoto
秋元　幸一
Tokuo Kosuge
小菅　徳雄
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.)
Fujimori Kogyo Co Ltd
Original Assignee
Fujimori Kogyo 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 Fujimori Kogyo Co Ltd filed Critical Fujimori Kogyo Co Ltd
Priority to JP62250733A priority Critical patent/JPH0193328A/en
Publication of JPH0193328A publication Critical patent/JPH0193328A/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
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B29C65/22—Heated wire resistive ribbon, resistive band or resistive strip
    • B29C65/221—Heated wire resistive ribbon, resistive band or resistive strip characterised by the type of heated wire, resistive ribbon, band or strip
    • B29C65/224—Heated wire resistive ribbon, resistive band or resistive strip characterised by the type of heated wire, resistive ribbon, band or strip being a resistive ribbon, a resistive band or a resistive strip
    • 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
    • B29C66/50—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
    • B29C66/534—Joining single elements to open ends of tubular or hollow articles or to the ends of bars
    • 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
    • B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
    • 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
    • B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
    • B29C66/543—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles joining more than two hollow-preforms to form said hollow articles
    • B29C66/5432—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles joining more than two hollow-preforms to form said hollow articles joining hollow covers and hollow bottoms to open ends of container bodies
    • 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
    • B29C66/63—Internally supporting the article during joining
    • B29C66/634—Internally supporting the article during joining using an inflatable core
    • 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
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8145—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/81455—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps being a fluid inflatable bag or bladder, a diaphragm or a vacuum bag for applying isostatic 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
    • 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
    • B29C65/38—Impulse heating
    • 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)
  • Rigid Containers With Two Or More Constituent Elements (AREA)
  • Making Paper Articles (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

PURPOSE:To manufacture a cylindrical vessel easily by heating of one time, by a method wherein the main body of the cylindrical vessel to be welded is inserted into a pressure vessel and an inner bag is inserted into the vessel to apply an internal pressure on the inside of the vessel by air or hydraulic pressure and weld the welding part of the vessel by fusion through impulse seal. CONSTITUTION:The peripheral rim 2 of a lower end plate is bonded by heat to the lower outer peripheral surface of the side wall 3 of a cylindrical vessel, thereafter, both of them are received into a pressure vessel 7, then, the upper outer peripheral surface of the cylindrical side wall 3 is covered by the peripheral rim of an upper plate 4 having a bung hole and an inner bag is inserted thereinto through the bung hole. Subsequently, air or water is forced into said inner bag to apply an internal pressure on a cylindrical vessel to weld the peripheral rim of said upper end plate 4 to the upper outer peripheral surface of the cylindrical side wall 3 through impulse seal 10. The cylindrical side wall, to which a sheet material is bonded, may be employed, however a tube, obtained by inflation method or extruding method, is usually used. The single film of polyethylene, ethylene-acetate copolymer, polypropylene or the like or the composite sheet of nylon/polyethylene, nylon/polypropylene or the like is employed as the material of the upper end plate and the lower end plate.

Description

【発明の詳細な説明】 （産業上の利用分野） この発明は、円筒容器の製造方法に関し、例えば、円筒
容器、特にドラム缶、ベール缶、−斗缶などの容器内に
装填して使用するのに有用な円筒容器の製造方法に関す
る。Detailed Description of the Invention (Industrial Application Field) The present invention relates to a method for manufacturing a cylindrical container, for example, a method for manufacturing a cylindrical container, particularly a container such as a drum can, bale can, or can. The present invention relates to a method for manufacturing a cylindrical container useful for.

（従来の技術） 一従来、ドラム缶、ベール缶、−斗缶などの容器の内袋
などに使用されている円筒状容器の製造方法は、第１図
に示すようにシャーレ状に形成した下端板１の周縁２を
円筒状容器本体３の下部外周面と重ね合わせ、重合部を
熱接着した後、同様にして上端板４を円筒状容器本体３
の上部外周部に熱接着するものであった。しかしながら
、これらの方法では、熱接着部分にしわが出来やすく外
観が悪いばかりでなく、強度低下にもつながるという欠
点があった。他方、熱接着すべき上端板と円筒状容器本
体の上部外周部とを複数個の加熱部分に区分し、順次加
熱融着する方法が考えられ、この場合には前記したよう
なしわの発生は防止できるが、その手順はきわめて複雑
である。(Prior Art) A conventional method for manufacturing cylindrical containers used as inner bags of containers such as drums, bale cans, and cans is as shown in FIG. 1 and the lower outer circumferential surface of the cylindrical container body 3, and after thermally bonding the overlapping part, the upper end plate 4 is attached to the cylindrical container body 3 in the same manner.
It was to be thermally bonded to the upper outer periphery of the However, these methods have the drawback that not only are the thermally bonded parts prone to wrinkles, but the appearance is poor, and the strength is also reduced. On the other hand, it is possible to consider a method in which the upper end plate to be thermally bonded and the upper outer periphery of the cylindrical container body are divided into a plurality of heated portions and heated and fused one after another.In this case, the occurrence of wrinkles as described above can be avoided. It can be prevented, but the procedure is extremely complex.

（解決すべき問題点） 本発明はこのような欠点を改良し、−度の加熱で完全な
融着できるような方法について種々検討した結果、本発
明を完成するに至ったもので、本発明の目的は一度の加
熱によって、熱接着部に皺のない極めて強固に熱接着し
た円筒容器を製造する方法を提供するにある。(Problems to be Solved) The present invention has been completed as a result of various studies on a method that can improve these drawbacks and achieve complete fusion with -degree heating. The object of the present invention is to provide a method for manufacturing a cylindrical container that is extremely strongly thermally bonded without wrinkles in the thermally bonded portion by heating once.

（問題を解決するための手段） すなわち、円筒状側壁部の一端に下端板を、ついで他端
に上端板をそれぞれ熱接着する工程を含む円筒容器の製
造方法において、下端板周縁と円筒状側壁部の下部の外
周面との熱接着した後、圧力容器内に収容し、口部を有
する上端板周縁を円筒状側壁部の上部の外周面に被せ、
口部より内袋を挿入し、次いで該内袋内に空気又は水を
圧入して円筒容器に内圧をかけ前記上端板周縁を円筒状
側壁部の上部の外周面とをインパルスシールすることを
特徴とする円筒容器の製造方法である。本発明で使用す
る円筒状側壁部はシート状物を貼着したものを用いても
よいが、通常インフレーション法若しくは押出法によっ
て得たチューブを使用することが好ましく、その厚みは
容器の大きさによって異なるが約３０μ〜５００μであ
り、その径は１００ｍ／ｍ〜１０００ｍ／ｎである。上
端板若しくは下端板として使用するものはポリエチレン
、エチレン−酢酸ビニル共重合体、ポリプロピレンなど
の単体フィルムやナイロン／ポリエチレン、ナイロン／
ポリプロピレンなどの複合シートである。そして、これ
に熱接着する下端板は容器の内外より通常の方法によっ
てヒートシールすることによって容易に且つ、強固に熱
接着することができる。次に、上端板を熱接着するに際
しては下端板を熱接着した円筒状側壁部を圧力容器内に
入れ、その円筒状側壁部の上部に口部を有する上端板の
周縁を円筒状側壁部の上部の外周面に被せ、口部より内
袋を挿入し、次いで該内袋内に空気又は水を圧入して円
筒容器に内圧をかけ接合部を圧力容器の内壁に押しつけ
ながらインパルスシールに依って熱接着するのである。(Means for Solving the Problem) That is, in a method for manufacturing a cylindrical container that includes the step of thermally bonding a lower end plate to one end of a cylindrical side wall portion and then an upper end plate to the other end, the peripheral edge of the lower end plate and the cylindrical side wall After thermally bonding the outer peripheral surface of the lower part of the cylindrical side wall part, the upper end plate is placed in a pressure vessel, and the peripheral edge of the upper end plate having the mouth part is placed over the outer peripheral surface of the upper part of the cylindrical side wall part.
An inner bag is inserted through the mouth, and then air or water is pressurized into the inner bag to apply internal pressure to the cylindrical container to impulse-seal the periphery of the upper end plate with the outer peripheral surface of the upper part of the cylindrical side wall. This is a method for manufacturing a cylindrical container. The cylindrical side wall used in the present invention may be made of a sheet-like material pasted, but it is usually preferable to use a tube obtained by an inflation method or an extrusion method, and its thickness depends on the size of the container. The diameter varies from about 30μ to 500μ, and the diameter is from 100m/m to 1000m/n. The materials used as the upper end plate or lower end plate include single films such as polyethylene, ethylene-vinyl acetate copolymer, polypropylene, nylon/polyethylene, nylon/
It is a composite sheet made of polypropylene, etc. The lower end plate to be thermally bonded to this can be easily and firmly thermally bonded by heat sealing from the inside and outside of the container using a conventional method. Next, when thermally bonding the upper end plate, the cylindrical side wall to which the lower end plate is thermally bonded is placed in a pressure vessel, and the periphery of the upper end plate, which has a mouth at the top of the cylindrical side wall, is attached to the cylindrical side wall. Cover the outer circumferential surface of the upper part, insert the inner bag from the mouth, then pressurize air or water into the inner bag to apply internal pressure to the cylindrical container and press the joint against the inner wall of the pressure container while applying an impulse seal. It is thermally bonded.

次に、本発明の実施例を図面にもとすいて詳細に説明す
る。Next, embodiments of the present invention will be described in detail with reference to the drawings.

（実施例） 以下、第１図は本発明に係る実施例を図示する図面であ
って、下端板を熱接着した円筒状側壁部を圧力容器７内
に入れ上端板４に形成された注出口５から内袋６を挿入
して行なうものである。内袋６内にはエアーまたは水を
圧入して容器内に内圧を加え接合部分をインパルスシー
ルによって融着するのである。図中、９は絶縁材料、１
０はインパルスシールをそれぞれ表わす。(Embodiment) FIG. 1 is a diagram illustrating an embodiment of the present invention, in which a cylindrical side wall portion with a lower end plate thermally bonded is placed inside a pressure vessel 7, and a spout formed in an upper end plate 4 is inserted. This is done by inserting the inner bag 6 from 5. Air or water is forced into the inner bag 6 to apply internal pressure inside the container, and the joints are fused together by an impulse seal. In the figure, 9 is an insulating material, 1
0 represents an impulse seal, respectively.

（効果） 以上の通り、本発明の製造方法においては接合すべき円
筒容器本体を圧力容器内にいれ、内部には内袋を挿入し
てこれにエアーまたは水を圧入して容器内に内圧を加え
接合部分をインパルスシールによって融着するのであっ
て、かかる手段により一度の加熱によって容易に円筒容
器を製造することが出来るのであるのでその効果は顕著
である。(Effects) As described above, in the manufacturing method of the present invention, the cylindrical container bodies to be joined are placed in a pressure container, and an inner bag is inserted into the container, and air or water is pressurized into the container to increase the internal pressure inside the container. In addition, the joining portions are fused by impulse sealing, and the effect is remarkable because a cylindrical container can be easily manufactured by one heating by such means.

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

第１図本発明に係る円筒状容器の製造方法の縦断面図で
あり、第２図は、従来の円筒状容器の製造方法の縦断面
図である。 １・・・下端板　　　　２・・・下端板周縁部３・・・
円筒状側壁部　４・・・上端板５・・・注出口　　　　
６・・・伸縮性内袋７・・・圧力容器　　　８・・・締
具 ９・・・絶縁材料　　１ｏ・・・インパルスシール１１
・・・シール部FIG. 1 is a longitudinal sectional view of a method for manufacturing a cylindrical container according to the present invention, and FIG. 2 is a longitudinal sectional view of a conventional method for manufacturing a cylindrical container. 1... Lower end plate 2... Lower end plate peripheral portion 3...
Cylindrical side wall portion 4... Upper end plate 5... Outlet
6... Elastic inner bag 7... Pressure vessel 8... Fastener 9... Insulating material 1o... Impulse seal 11
...Seal part

Claims (1)

【特許請求の範囲】[Claims] 円筒状側壁部の一端に下端板を、ついで他端に上端板を
それぞれ熱接着する工程を含む円筒容器の製造方法にお
いて、円筒状側壁部の下部に下端板を熱接着した後、圧
力容器内に収容し、口部を有する上端板周縁を円筒状側
壁部の上部の外周面に被せ、口部より内袋を挿入し、次
いで該内袋内に空気又は水を圧入して円筒容器に内圧を
かけ前記上端板周縁を円筒状側壁部の上部の外周面とを
インパルスシールすることを特徴とする円筒容器の製造
方法。In a method for manufacturing a cylindrical container, which includes a step of thermally bonding a lower end plate to one end of a cylindrical side wall and then an upper end plate to the other end, the lower end plate is thermally bonded to the lower part of the cylindrical side wall, and then the inside of the pressure vessel is The periphery of the upper end plate having a mouth part is placed over the outer peripheral surface of the upper part of the cylindrical side wall part, the inner bag is inserted through the mouth part, and then air or water is pressurized into the inner bag to increase the internal pressure in the cylindrical container. A method for manufacturing a cylindrical container, characterized in that the periphery of the upper end plate is impulse-sealed with the outer peripheral surface of the upper part of the cylindrical side wall.
JP62250733A 1987-10-06 1987-10-06 Method for manufacturing cylindrical containers Pending JPH0193328A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62250733A JPH0193328A (en) 1987-10-06 1987-10-06 Method for manufacturing cylindrical containers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62250733A JPH0193328A (en) 1987-10-06 1987-10-06 Method for manufacturing cylindrical containers

Publications (1)

Publication Number Publication Date
JPH0193328A true JPH0193328A (en) 1989-04-12

Family

ID=17212230

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62250733A Pending JPH0193328A (en) 1987-10-06 1987-10-06 Method for manufacturing cylindrical containers

Country Status (1)

Country Link
JP (1) JPH0193328A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7833300B2 (en) 2007-02-23 2010-11-16 Kobelco Construction Machinery Co., Ltd. Mounting structure of filter for cooler of construction

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7833300B2 (en) 2007-02-23 2010-11-16 Kobelco Construction Machinery Co., Ltd. Mounting structure of filter for cooler of construction

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