DE2300722A1 - CONTAINER AND LID MADE OF THERMOPLASTIC PLASTIC AND DEVICE FOR WELDING THE LID TO THE CONTAINER - Google Patents

CONTAINER AND LID MADE OF THERMOPLASTIC PLASTIC AND DEVICE FOR WELDING THE LID TO THE CONTAINER

Info

Publication number
DE2300722A1
DE2300722A1 DE2300722A DE2300722A DE2300722A1 DE 2300722 A1 DE2300722 A1 DE 2300722A1 DE 2300722 A DE2300722 A DE 2300722A DE 2300722 A DE2300722 A DE 2300722A DE 2300722 A1 DE2300722 A1 DE 2300722A1
Authority
DE
Germany
Prior art keywords
lid
container
welding
edge
strip
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
DE2300722A
Other languages
German (de)
Inventor
Roger Alan Shefford
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.)
Greif International Holding BV
Original Assignee
Koninklijke Emballage Industrie Van Leer BV
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 Koninklijke Emballage Industrie Van Leer BV filed Critical Koninklijke Emballage Industrie Van Leer BV
Publication of DE2300722A1 publication Critical patent/DE2300722A1/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D43/00—Lids or covers for rigid or semi-rigid containers
    • B65D43/02—Removable lids or covers
    • B65D43/0202—Removable lids or covers without integral tamper element
    • B65D43/0214—Removable lids or covers without integral tamper element secured only by friction or gravity
    • B65D43/0218—Removable lids or covers without integral tamper element secured only by friction or gravity on both the inside and the outside of the mouth of the container
    • 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
    • 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
    • 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
    • B29C65/228—Heated wire resistive ribbon, resistive band or resistive strip characterised by the means for electrically connecting the ends of said heated wire, resistive ribbon, resistive band or 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
    • B29C66/50—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
    • B29C66/542—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 hollow covers or 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
    • B29C66/51—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
    • B29C66/545—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 one hollow-preform being placed inside the other
    • 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
    • B29C66/73—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B29C66/73921—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
    • 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
    • B29C66/818—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 cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps
    • B29C66/8181—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 cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps characterised by the cooling constructional aspects
    • 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
    • B29C65/229—Heated wire resistive ribbon, resistive band or resistive strip characterised by the means for tensioning said heated wire, resistive ribbon, resistive band or 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/919—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/94—Measuring or controlling the joining process by measuring or controlling the time
    • B29C66/949—Measuring or controlling the joining process by measuring or controlling the time characterised by specific time values or ranges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00018—Overall construction of the lid
    • B65D2543/00064—Shape of the outer periphery
    • B65D2543/00074—Shape of the outer periphery curved
    • B65D2543/00092—Shape of the outer periphery curved circular
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00018—Overall construction of the lid
    • B65D2543/00259—Materials used
    • B65D2543/00296—Plastic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00425—Lids or covers welded or adhered to the container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444—Contact between the container and the lid
    • B65D2543/00481—Contact between the container and the lid on the inside or the outside of the container
    • B65D2543/0049—Contact between the container and the lid on the inside or the outside of the container on the inside, or a part turned to the inside of the mouth of the container
    • B65D2543/00509—Cup
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444—Contact between the container and the lid
    • B65D2543/00481—Contact between the container and the lid on the inside or the outside of the container
    • B65D2543/00537—Contact between the container and the lid on the inside or the outside of the container on the outside, or a part turned to the outside of the mouth of the container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444—Contact between the container and the lid
    • B65D2543/00481—Contact between the container and the lid on the inside or the outside of the container
    • B65D2543/00555—Contact between the container and the lid on the inside or the outside of the container on both the inside and the outside

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Closures For Containers (AREA)
  • Closing Of Containers (AREA)

Description

Koninklijke Emballage Industrie Van Leer B.V. Amstelveen, NiederlandeKoninklijke Emballage Industrie Van Leer B.V. Amstelveen, Netherlands

Behälter und Deckel aus thermoplastischem Kunststoff und Vorrichtung zum Anschweißen des Deckels an den BehälterContainer and lid made of thermoplastic material and device for welding the lid to the container

Die Erfindung betrifft einen Behälter mit Deckel, welche beide aus thermoplastischem Kunststoff bestehen, wobei der Behälter einen oberen Rand aufweist, der in den eine schmale Ausnehmung bildenden Deckelrand des Deckels fest und sicher eingreift.The invention relates to a container with a lid, both of which are made of thermoplastic material, wherein the container has an upper edge which is fixed in the lid edge of the lid which forms a narrow recess and intervenes safely.

Die Erfindung betrifft weiterhin eine Vorrichtung zum Anschweißen eines Deckels an einen Behälter der vorstehenden Art.The invention further relates to a device for welding a lid to a container of the above Art.

Behälter dieser Art sind bekannt. In vielen bekannten Ausführungen sind der obere Behälterrand und der zugehörige Deckel derart ausgebildet, daß der Deckel auf dem oberen Behälterrand sicher festgeklemmt werden kann. Hierbei können Schnappwirkungen vorhanden sein, wobei der Deckelrand mit einem einwärts gerichteten Vorsprung unter einen nach außen gerichteten Vorsprung am Behälter greift, um dadurch einen festen Deckelsitz zu erzielen.Containers of this type are known. In many known designs, the upper edge of the container and the associated Lid designed such that the lid can be securely clamped on the upper edge of the container. Here snap effects can be present, the lid edge having an inwardly directed projection engages under an outward projection on the container to thereby achieve a tight lid fit.

309829/0852309829/0852

ORIGINAL JNSPECTEDORIGINAL JNSPECTED

Hierdurch kann ein dichter Verschluß erreicht werden. Wenn jedoch solch ein Behälter fallengelassen wird oder einen harten Stoß erhält, kann sich der Deckel öffnen und der Inhalt verloren gehen. Es ist bekannt, daß ein sichererer Verschluß durch Metallringe oder Metallstreifen erreicht werden kann. Die Verwendung von metallischen Teilen bei Behältern aus Kunststoff ist jedoch nicht immer befriedigend, abgesehen von den Nachteilen, die sich bei der Verwendung solcher Bänder bei Behältern und im Hinblick auf den Inhalt der Behälter ergeben können.In this way, a tight seal can be achieved. However, if such a container is dropped or receives a hard bump, the lid may open and the contents may be lost. It is known, that a more secure closure can be achieved by metal rings or metal strips. The usage however, metallic parts in plastic containers are not always satisfactory, apart from the disadvantages of using such tapes on containers and in terms of content the container can result.

Aufgabe der Erfindung ist es, bei Vermeidung der vorstehenden Nachteile einen verläßlich dichten Verschluß für Kunststoffbehälter anzugeben, der konstruktiv besonders einfach und außerdem leicht zu handhaben ist.The object of the invention is to provide a reliably tight closure while avoiding the above disadvantages specify for plastic containers, which is structurally particularly simple and also easy to handle.

Die Aufgäbe, wird erfindungsgemäß in der Weise gelöst, daß ein streifenfbrmiger Abschnitt am Umfang des äußeren Deckelrandteils eine Stärke von weniger als 1 mm aufweist, der beim verschlossenen Behälter an der Außenwand des Behälters angeschweißt ist. In der Tat weist der Abschnitt des Deckels, der vorzugsweise allmählich in die volle Stärke des Deckels übergeht, die geeignete Stärke für die Schweißung von thermoplastischem Kunststoff auf und ist somit leicht an der Außenwand des Behälters anschweißbar. Erstaunlicherweise ist der dünne Abschnitt, der sich vorteilhafterweise am unteren (äußeren) Ende des äußeren Deckelrandteiles befindet, geeignet, eine solch hohe Klemmwirkung des Deckels auf dem Behälter zu bewirken, daß sogar, wenn der Behälter stark erschüttert oder fallengelassen wird, die Klemmspannung nicht verloren geht, mit der der Deckel fest auf dem Behälter gehalten wird, ungeachtet der relativ schmalen Dicke des am Behälter angeschweißten äußeren Deckelrandstreifens. Außerdem wird eine zusätzliche The task is solved according to the invention in such a way that that a strip-shaped section on the circumference of the outer lid edge part has a thickness of less than 1 mm which is welded to the outer wall of the container when the container is closed. As a matter of fact the portion of the lid, which preferably gradually merges into the full thickness of the lid, the suitable strength for the welding of thermoplastic material and is therefore light on the outer wall of the tank can be welded on. Amazingly, the thin section that is advantageously at the bottom (Outer) end of the outer lid edge part is suitable, such a high clamping effect of the lid on the container to cause even if the container is severely shaken or dropped, the Clamping tension is not lost with which the lid is held firmly on the container, regardless of the relative narrow thickness of the outer lid edge strip welded to the container. There is also an additional

-3-309829/0852 -3-309829 / 0852

Sicherheit gegen ein Undichtwerden erzielt, wenn ein Dichtungsring zwischen dem Deckel und dem oberen Behälterrand des Behälters beschädigt oder von dem Behälterinhalt angegriffen ist.Security against leakage is achieved when a sealing ring is placed between the lid and the upper edge of the container the container is damaged or attacked by the contents of the container.

Die Erfindung betrifft außerdem eine Vorrichtung zum Anschweißen des Deckels an den Behälter der vorstehenden erfindungsgemäßen Art. Die Vorrichtung umfaßt ein ringförmiges Aufspannelement, dessen erhitzbare Arbeitsfläche mit einer Schicht versehen ist, die den erhitzten Kunststoff des Deckels abstößt. Das Aufspannelement ist mit einer Klemmvorrichtung zum radialen Anpressen des äußeren Deckelrandstreifens versehen. Mit der erfindungsgemäßen Schweißvorrichtung ist es möglich, den dünnen Deckelrandstreifen des Deckels am Behälter fest und sicher anzuschweißen, indem Druck und Hitze gleichzeitig auf den Deckelrandstreifen einwirken zum Verbinden des Deckels mit dem Behälter.The invention also relates to a device for welding the lid to the container of the above Type according to the invention. The device comprises an annular clamping element, the heatable working surface of which is provided with a layer that repels the heated plastic of the lid. The clamping element is provided with a clamping device for radial pressing of the outer cover edge strip. With the invention Welding device, it is possible to fix the thin lid edge strip of the lid to the container and to be welded securely in that pressure and heat act simultaneously on the lid edge strip to connect the lid with the container.

Eine geeignete Ausführung des Aufspannelementes besteht vorzugsweise aus einem Metallband, das sich aufspannen läßt und einen hohen elektrischen Widerstand aufweist. Hierbei kann es sich z.B. um eine Nickel-Chromlegierung oder dergleichen handeln. Nachdem das Band an den äußeren Behälterrand angelegt ist, wird das Band an eine Stromquelle angeschlossen mit dem Ergebnis, daß das Band auf die erforderliche Schweißtemperatur gebracht wird. Das Metallband ist vorteiihafterweise an seiner Außenseite, an eine Kühlvorrichtung angeschlossen, die mit einem Kühlmedium gefüllt ist. In einem solchen Fall kann die erfindungsgemäße Aufspannvorrichtung aus einem Ring aus Nickel-Chromdraht oder dergleichen bestehen, der sich an einem Gehäuse (z.B. einem geteilten Gehäuse) aus nicht leitendem Material befindet, durch den das Kühlmedium strömen kann.A suitable embodiment of the clamping element preferably consists of a metal band which is stretched leaves and has a high electrical resistance. This can be a nickel-chromium alloy, for example or act like that. After the tape is applied to the outer edge of the container, the tape is attached to a Power source connected with the result that the tape is brought to the required welding temperature. The metal band is advantageously connected to a cooling device on its outside, which is equipped with a Coolant is filled. In such a case, the jig according to the invention can consist of a ring Nickel-chromium wire or the like, which is attached to a housing (e.g. a split housing), does not conductive material through which the cooling medium can flow.

309829/0852309829/0852

Die erfindungsgemäße Vorrichtung bleibt am Ort der Schweißstelle, bis die Schweißverbindung gekühlt worden ist·The device according to the invention remains at the site of Welding point until the welded joint has cooled

Um dieses zu vermeiden, kann eine zweite Vorrichtung vorgesehen sein, die durch Öffnungen in dem ersten Band oder an Stellen oberhalb oder unterhalb des Bandes mit dem Deckelrand in Verbindung steht. Die zweite Vorrichtung kann den Deckelrand halten, wenn das erste Band zur Beschleunigung der Kühlung entfernt worden ist.To avoid this, a second device can be provided through openings in the first Band or at points above or below the band with the lid edge in connection. The second Device can hold the lid edge when the first tape has been removed to accelerate cooling is.

Die Erfindung wird anhand von Ausführungsbeispielen mehr im einzelnen erläutert, die in Zeichnungen schematisch „dargestellt sind. Hierin zeigt:The invention becomes more based on exemplary embodiments explained in detail, which are shown schematically in the drawings. Herein shows:

Fig. 1 einen axialen Schnitt durch ein erstes Ausführungsbeispiel nach der Erfindung undFig. 1 is an axial section through a first embodiment according to the invention and

Fig. 2 einen axialen Schnitt entsprechend demFig. 2 is an axial section corresponding to that

in Fig. 1 durch ein zweites Ausführungsbeispiel nach der Erfindung. in Fig. 1 by a second embodiment according to the invention.

Der Kunststoffbehälter 1 besitzt einen verdickten oberen Rand 2. Der Kunststoffdeckel 3 ist mit einem eine schmale Ausnehmung aufweisenden Rand 4 versehen, der über den verdickten oberen Rand 2 greift. Mit 5 ist eine runde Aufspannvorrichtung bezeichnet, die mit einer Heizvorrichtung versehen ist. Die Arbeite- oder Kontaktfläche der Heizvorrichtung ist mit einer Schicht 7 versehen, die verhindert, daß die Aufspannvorrichtung beim Schweißvorgang am Kunststoffbehälter bzw. Kunststoffdeckel haften bleibt. Die Temperatur während des Schweißvorganges beträgt 200 bis 260° C . Die Schweißzeit beträgt zwischen 4 bis 20 see. . Der dünne Streifen am unteren Ende desThe plastic container 1 has a thickened upper edge 2. The plastic lid 3 has a narrow one Provided with recess having edge 4, which engages over the thickened upper edge 2. With 5 is a round Designated jig, which is provided with a heating device. The work or contact area the heating device is provided with a layer 7 which prevents the jig during the welding process sticks to the plastic container or plastic lid. The temperature during the welding process is 200 to 260 ° C. The welding time is between 4 and 20 seconds. . The thin strip at the bottom of the

-5-309829/0852 -5-309829 / 0852

äußeren Deckelrandteiles besitzt eine Dicke von weniger als 1 mm und vorzugsweise zwischen 0,25 und 0,6 mm . Die Höhe bzw. Breite des dünnen Streifens liegt vorzugsweise zwischen 2 bis 5 mm .outer lid edge part has a thickness of less than 1 mm and preferably between 0.25 and 0.6 mm. The height or width of the thin strip is preferably between 2 and 5 mm.

Fig. 2 zeigt einen Behälter, der ähnlich dem nach Fig. 1 ist. Die Aufspannvorrichtung enthält ein Niekel-Chromband 8, das als elektrisches Heizelement verwendbar ist. Auf der Rückseite des Bandes befindet sich eine Kammer 9 für einen Kühlwasserumlauf.FIG. 2 shows a container which is similar to that of FIG. The jig contains a Niekel chrome ribbon 8, which can be used as an electric heating element. A chamber 9 is located on the back of the belt for a cooling water circulation.

Die Erfindung ist nicht auf Behälter beschränkt, die
einen Deckel besitzen, welcher über den oberen Behälterrand greift, wobei der Behälterrand den Behälterteil mit dem größten Außenumfang darstellt. Es ist klar, daß die
Erfindung auch verwendbar ist, wenn ein Deckel verwendet wird, der die Öffnung eines Behälterhalses abschließt,
wobei der Durchmesser des oberen Behälterendes den Deckeldurchmesser'überragt. The invention is not limited to containers that
have a lid which engages over the upper edge of the container, the container edge representing the container part with the largest outer circumference. It is clear that the
Invention can also be used when a lid is used which closes the opening of a container neck,
wherein the diameter of the upper end of the container projects beyond the diameter of the lid.

AnsprücheExpectations

-6-309829/0852 -6-309829 / 0852

Claims (4)

AnsprücheExpectations Behälter mit Deckel, welche beide aus thermoplastischem Kunststoff bestehen, wobei der Behälter einen oberen Rand aufweist, der in den eine schmale Ausnehmung bildenden Deckelrand des Deckels fest und sicher eingreift, dadurch gekennzeichnet , daß ein streifenförmiger Abschnitt am Umfang des äußeren Deckelrandteiles eine Stärke von weniger als 1 mm aufweist, der beim verschlossenen Behälter an der Außenwand des Behälters angeschweißt ist.Container with lid, both of which are made of thermoplastic material, the container having a has upper edge, which is fixed and in the lid edge of the lid that forms a narrow recess safely engages, characterized that a strip-shaped portion on the circumference of the outer lid edge part has a thickness of less than 1 mm, which is welded to the outer wall of the container when the container is closed is. 2. Vorrichtung zum Anschweißen des Deckels an den Behälter nach Anspruch 1, dadurch gekennzeichnet, daß eine runde Aufspennvorrichtung (5) vorgesehen ist, deren heizbare Arbeitsfläche (6) mit einer Schicht (7) versehen ist, die den ei'hitzten Kunststoff des Deckels (3) abstößt, und die mit einer Klemmvorrichtung zum Andrücken des äußeren Deckelrandteiles in radialer Richtung und nach unten versehen ist.2. Device for welding the lid to the container according to claim 1, characterized in that a round clamping device (5) is provided, the heatable work surface (6) provided with a layer (7) is that the heated plastic of the lid (3) repels, and with a clamping device for pressing the outer cover edge part in the radial direction Direction and down is provided. 3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß die Aufspannvorrichtung aus einem Metallband (8) besteht, das festspannbar ausgebildet ist und einen hohen elektrischen--Wide-rat-and, z.B. eine Nickel- Chromlegierung, aufweist.3. Apparatus according to claim 2, characterized in that the jig consists of a metal strip (8) consists, which is designed to be clamped and has a high electrical - Wide-rat-and, e.g. a nickel-chromium alloy, having. 4. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß die Außenseite des Metallbandes (8) mit einer Kühlvorrichtung (9) in Kontakt ist.4. Apparatus according to claim 3, characterized in that that the outside of the metal strip (8) is in contact with a cooling device (9). 309829/0852309829/0852
DE2300722A 1972-01-11 1973-01-08 CONTAINER AND LID MADE OF THERMOPLASTIC PLASTIC AND DEVICE FOR WELDING THE LID TO THE CONTAINER Pending DE2300722A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL727200406A NL147089B (en) 1972-01-11 1972-01-11 BARREL WITH REMOVABLE LID, BOTH OF THERMOPLASTIC PLASTIC.

Publications (1)

Publication Number Publication Date
DE2300722A1 true DE2300722A1 (en) 1973-07-19

Family

ID=19815139

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2300722A Pending DE2300722A1 (en) 1972-01-11 1973-01-08 CONTAINER AND LID MADE OF THERMOPLASTIC PLASTIC AND DEVICE FOR WELDING THE LID TO THE CONTAINER

Country Status (11)

Country Link
JP (1) JPS4948473A (en)
AT (1) AT323046B (en)
BE (1) BE793907A (en)
BR (1) BR7300241D0 (en)
CH (1) CH565085A5 (en)
DE (1) DE2300722A1 (en)
FR (1) FR2167895B1 (en)
GB (1) GB1380521A (en)
IT (1) IT976226B (en)
NL (1) NL147089B (en)
ZA (1) ZA729111B (en)

Also Published As

Publication number Publication date
GB1380521A (en) 1975-01-15
FR2167895A1 (en) 1973-08-24
AT323046B (en) 1975-06-25
BE793907A (en) 1973-07-11
AU5093773A (en) 1974-07-11
BR7300241D0 (en) 1973-10-25
CH565085A5 (en) 1975-08-15
NL7200406A (en) 1973-07-13
NL147089B (en) 1975-09-15
FR2167895B1 (en) 1978-09-29
JPS4948473A (en) 1974-05-10
ZA729111B (en) 1973-09-26
IT976226B (en) 1974-08-20

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