EP0756466B1 - Process for producing an air mattress with a pump part and a part to be inflated - Google Patents

Process for producing an air mattress with a pump part and a part to be inflated Download PDF

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Publication number
EP0756466B1
EP0756466B1 EP94930199A EP94930199A EP0756466B1 EP 0756466 B1 EP0756466 B1 EP 0756466B1 EP 94930199 A EP94930199 A EP 94930199A EP 94930199 A EP94930199 A EP 94930199A EP 0756466 B1 EP0756466 B1 EP 0756466B1
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EP
European Patent Office
Prior art keywords
wall
tool
air mattress
welded
pump
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EP94930199A
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German (de)
French (fr)
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EP0756466A1 (en
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Josef Graf
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Individual
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Individual
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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C27/00—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas
    • A47C27/08—Fluid mattresses or cushions
    • A47C27/081—Fluid mattresses or cushions of pneumatic type
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C27/00—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas
    • A47C27/08—Fluid mattresses or cushions
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C27/00—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas
    • A47C27/08—Fluid mattresses or cushions
    • A47C27/081—Fluid mattresses or cushions of pneumatic type
    • A47C27/084—Fluid mattresses or cushions of pneumatic type self inflating

Definitions

  • the invention relates to a method for producing an air mattress with the features specified in the preamble of claim 1.
  • the invention has for its object the manufacture of the mattress, especially the welding of the pump part wall, in a particularly economical way Way to enable.
  • An indivisible tool can be used if the Pump part is arranged in a corner of the air mattress.
  • Fig. 1 is the welding of the pump part wall 4 in the in the Fig. 1 to 7 shown embodiment.
  • Bridge tabs 5 out in the further course of the method be connected diagonally to the upper 1a or lower cover skin 1b.
  • the bridge tabs 5 serve to dent the wall 4 prevent increasing pressure in the part to be inflated.
  • the partially broken block 6 shows the view of the Inlet opening 10a of a one-way outlet valve in the form of a film valve 10 free.
  • FIG. 2 shows a representation corresponding to FIG. 1 for the welding the pump wall 20 at one in a corner of the air mattress arranged pump part shown.
  • the wall 20 consists of two film strips, which are welded to one longitudinal edge by a weld seam 20a be connected to each other. Spread over the edges of the film strips the upper or lower edge of a tool 25. Between the plates 29 and the respective edge of the film strip is the upper cover skin 17a or the lower cover skin 17b. Cover skin and edge of the film strip are in each case connected to one another by a weld seam 24 connected.
  • a closure body belongs to inlet opening 23.
  • the free end of a pull tab also becomes with the weld seam 20a 30 attached, which passed through a slot 32 in the tool 25 is.
  • the other end of the Pull tab 30 With the edge of the air mattress 1 in somewhat tightened Location of the pull tab 30 welded.
  • the pull tab 30 points in holes 31 in its central region.
  • the pump part 2 is arranged inside the edges of the cover skins 1a and 1b with a circumferential one Side wall 3 of the air mattress connected by welds 3a.
  • the pump part 2 is arranged near the edge of the air mattress, allowing the user to pump with one leg on the ground can stand.
  • Fig. 4 shows the wall 4 of the pump part 2 in the configuration as it is presents itself after inflating the air mattress 1.
  • the edges 4a the wall 4 are with the upper cover skin 1a or with the lower Cover skin 1b connected, also the free edges of the pull tabs 5th
  • the small opening 11 ensures a small backflow of air to the desired pressure equalization between the pump part 2 and pumped up Manufacture part.
  • the block 6 shown in Fig. 5 has a central, the inlet opening 9 opposite continuous recess 7, which ensures that the inlet opening 9 is not inadvertently closed by the block 6 can be.
  • the division of the. Is also indicated in this figure Blocks 6 when using the pull tab 30.
  • the tool 12 shown in FIG. 6 is perpendicular to one along divided later level of the air mattress 1 level.
  • the both parts are parts of the slots 15 for the passage of the web brackets 5.
  • the parts of the tool 12 are through Bolt 13 on the end faces of one part and by corresponding Holes 14 in the end face of the other part can be centered against each other.
  • the bore 16 serves for the passage of the foil valve 10.
  • Fig. 7 shows the insert part formed from wall 4 and tool 12, such as it is inserted between the cover skins 1a and 1b. Especially it can clearly be seen here how the edges 4a of the wall 4 around the Edges of the tool 12 are turned inside out. The turned edges 4a are easily deformable, so it is suitable for removing the tool 12 no problems.
  • the pump part designated 18 here, is in the corner an air mattress section 17 is arranged.
  • the upper cover skin 17a and the lower cover skin 17b are bordered by a circumferential one Weld 19 connected to each other, the connected outer skins at the same time form parts of the side wall of the pump part 18.
  • the inlet opening 23 is located in the top cover skin 17a, which is particularly notable Fig. 9 can be seen.
  • the weld seam 24 is also shown there which connects the pump part wall 20 to the outer skins 17a and 17b is.
  • Fig. 10 shows the block 21 to be inserted into the pump part 18 Propellant, which like the block 6 in FIG. 5 has a recess 22 has and is divided when using a pull tab 13.
  • the block 21 is expediently only after the wall 20 has been welded in the pump part 18 used. This is possible because the pump part 18 in front the manufacture of the weld 19 is open on the side.
  • the wall 20 consists of two on a longitudinal seam foil strips connected to one another by a weld seam 20a consists.
  • the wall 20 With the outer skins 17a and 17b connected.
  • Welding process positioned inside the edges of the tool 25.
  • the width of the wall 20 forming film strip in the transition region 26 to the of Weld 19 defined edge of the air mattress decreases, which the Removing the height of the air mattress when inflated corresponds.
  • the film strips have a target stretch 27 in the form of a short incision with a small hole to tear to prevent the very thin film strips.
  • the free ends of the film strips are by means of the weld seam 19th welded together. At this point lie in the manufacture of the Weld 19 thus four foils on top of each other, namely the cover skins 17a and 17b and the film strips forming the wall 20.
  • the height of the inflated air mattress is determined, because at Inflating the film strips are aligned, and twice Distance 28 then corresponds to the distance between the outer skins 17a and 17b. By varying the distance 28, the height of the inflated can Mattress to be determined.
  • Fig. 13 is shown by the arrows 33, in which way Tool inserted between the film strips of the wall 20 and after welding the wall 20 between the cover skins 17a and 17b is removed again.

Landscapes

  • Mattresses And Other Support Structures For Chairs And Beds (AREA)
  • Massaging Devices (AREA)
  • Invalid Beds And Related Equipment (AREA)

Abstract

PCT No. PCT/EP94/03451 Sec. 371 Date Nov. 27, 1996 Sec. 102(e) Date Nov. 27, 1996 PCT Filed Oct. 20, 1994 PCT Pub. No. WO95/28112 PCT Pub. Date Oct. 26, 1995The invention relates to a method of producing an air mattress, which comprises a pump part and a part, which is to be pumped up. A propellant is disposed in the pump part and the wall, which separates the pump part from the part, which is to be pumped up, has a one-way valve and a small opening, through which air can flow back from the part, which is to be pumped up, into the pump part. An inlet opening is disposed in the pump part and an outlet opening is disposed in the part, which is to be pumped up. Pursuant to the invention, a metallic tool is used for welding the pump part wall between the upper and lower covering skins of the air mattress. The tool forms one part of a high-frequency welding machine, having two plates, which lie against the outside of the covering skins. The tool is removed before the edge seals of the air mattress are produced. When the pump part is disposed within the air mattress, a dividable tool is used.

Description

Die Erfindung betrifft ein Verfahren zum Herstellen einer Luftmatratze mit den im Oberbegriff des Anspruchs 1 angegebenen Merkmalen.The invention relates to a method for producing an air mattress with the features specified in the preamble of claim 1.

Eine Luftmatratze mit diesen Merkmalen ist z.B. durch die WO 94/03089 bekannt geworden. Bei der bekannten Luftmatratze kann durch Öffnen der Einlaßöffnung durch diese Öffnung Luft in den Innenraum des Pumpteils eintreten. Bei Zutritt von Luft nimmt das im Pumpteil untergebrachte Treibmaterial an Volumen zu, bis der Pumpteil einigermaßen mit Luft gefüllt ist. Jetzt wird z.B. durch den Fuß des Benutzers der Pumpteil zusammengedrückt. wobei der Fuß die Einlaßöffnung verschließt. Es gelangt nun Luft durch das Einweg-Auslaßventil in den aufzupumpenden Teil. Dieser Pumpvorgang wiederholt sich so lange, bis der aufzupumpende Teil etwas mehr, als im Endergebnis erwünscht ist, aufgeblasen ist. Wird dann mit dem Pumpen aufgehört und die Einlaßöffnung verschlossen, dann fließt ein Teil der Luft über die kleine Öffnung in den Pumpteil zurück, bis in dem vom Pumpteil und dem aufzupumpenden Teil gebildeten geschlossenen System der gleiche Druck herrscht. Die Matratze ist damit gebrauchsfertig. Zum Entleeren der Luftmatratze wird die Auslaßöffnung geöffnet. Durch Zusammenrollen der Luftmatratze vom Pumpteil aus wird dann die Luft sowohl aus dem Pumpteil als auch aus dem aufzupumpenden Teil entfernt, indem sie über die Auslaßöffnung austritt. Als Treibmaterial ist ein zusammendrückbares Material zu verstehen, welches bei Luftzutritt an Volumen zunimmt. Ein solches Material ist z.B. offenzelliges Kunstschaummaterial.An air mattress with these features is e.g. through the WO 94/03089 became known. In the known air mattress by opening the inlet opening through this opening air into the interior of the pumping part. When air is admitted, this takes Pump section accommodated propellant volume until the pump section is somewhat filled with air. Now e.g. through the foot of the User of the pump part compressed. with the foot opening closes. Air now enters through the one-way exhaust valve the part to be inflated. This pumping process is repeated long until the part to be inflated a little more than in the end result is inflated. Then the pumping stops and the inlet opening is closed, then part of the air overflows the small opening in the pump section back into that of the pump section and the closed system of the part to be inflated there is the same pressure. The mattress is now ready for use. To the When the air mattress is emptied, the outlet opening is opened. By The air is then rolled up from the pump section removed both from the pump part and from the part to be inflated, by exiting through the outlet opening. As a propellant to understand a compressible material that is exposed to air Volume increases. Such a material is e.g. open-cell synthetic foam material.

Über die Herstellung der Matratze, insbesondere über das Einschweißen der den Pumpteil vom aufzupumpenden Teil trennenden Wand, ist in der genannten Druckschrift nichts ausgesagt.About the manufacture of the mattress, especially about the welding the wall separating the pumping part from the part to be inflated is in the nothing mentioned.

Der Erfindung liegt die Aufgabe zugrunde, die Herstellung der Matratze, insbesondere das Einschweißen der Pumpteilwand, in besonders wirtschaftlicher Weise zu ermöglichen.The invention has for its object the manufacture of the mattress, especially the welding of the pump part wall, in a particularly economical way Way to enable.

Die Lösung dieser Aufgabe wird mit den im Anspruch 1 angegebenen Merkmalen erreicht.The solution to this problem is with those specified in claim 1 Characteristics achieved.

Durch die Einschaltung eines metallischen Werkzeugs zwischen die Platten der Hochfrequerzschweißmaschine wird dafür gesorgt, daß üßer dieses Werkzeug ein Stromfluß erfolgt, der eine Erwärmung und damit ein Verschweißen der zwischen einer Platte und dem Werkzeug eingelegten thermoplastischen Folien zur Folge hat. Nach dem Einschweißen der Pumpteilwand wird das Werkzeug entfernt, und erst abschließend werden die Ränder der Deckhäute miteinander verbunden.By inserting a metallic tool between the Sheets of the high-frequency welding machine is made sure that outside this tool a current flow takes place which is a heating and thus welding the inserted between a plate and the tool thermoplastic films. After welding the The pump part wall, the tool is removed and only afterwards the edges of the cover skins joined together.

Vorteilhafte Ausführungsformen des im Anspruch 1 beschriebenen Verfahrens sind Gegenstand der Unteransprüche.Advantageous embodiments of the method described in claim 1 are the subject of the subclaims.

Wichtig ist dabei vor allem, daß beim Anordnen des Pumpteils innerhalb der Luftmatratze eine in der Draufsicht etwa rahmenförmige Folie und ein ebenfalls etwa rahmenförmiges Werkzeug eingesetzt werden. In diesem Fall muß das Werkzeug teilbar sein, weil es sonst nicht entfernt werden könnte.It is particularly important that when placing the pump part inside the air mattress is a frame-shaped film in plan view and an approximately frame-shaped tool can also be used. In in this case the tool must be divisible, otherwise it will not be removed could be.

Ein nichtteilbares Werkzeug kann dann verwendet werden, wenn der Pumpteil in einer Ecke der Luftmatratze angeordnet wird.An indivisible tool can be used if the Pump part is arranged in a corner of the air mattress.

Im folgenden wird die Erfindung anhand von in der Zeichnung dargestellten Ausführungsbeispielen näher erläutert. Es zeigt:

Fig. 1
einen Schnitt durch den Pumpteil während des Einschweißvorgangs;
Fig. 2
einen zur Fig. 1 senkrechten Schnitt durch den Pumpteil;
Fig. 3
eine perspektivische Ansicht auf eine zum Teil aufgeschnittene Luftmatratze mit einem innerhalb der Matratze liegenden Pumpteil;
Fig. 4
eine perspektivische Ansicht der zwischen den Deckhäuten einzuschweißenden Pumpteilwand;
Fig. 5
eine perspektivische Ansicht eines in den Pumpteil einzusetzenden Blocks des Treibmaterials;
Fig. 6
eine perspektivische Ansicht des verwendeten Werkzeugs;
Fig. 7
eine perspektivische Ansicht des aus dem in den Fig. 4 und 6 darstellten Elementen gebildeten Einsatzteils;
Fig. 8
die Draufsicht auf eine teilweise aufgeschnittene Matratze mit einem in einer Ecke der Matratze angeordneten Pumpteil;
Fig. 9
eine Seitenansicht des Gegenstandes der Fig. 8;
Fig. 10
eine perspektivische Ansicht eines in den Pumpteil einzusetzenden Blocks des Treibmaterials;
Fig. 11
eine perspektivische Ansicht mit Darstellung der Lage der Pumpteilwand vor dem Einschweißen;
Fig. 12
die Draufsicht auf die in Fig. 11 dargestellte Pumpteilwand; und
Fig. 13
eine perspektivische Ansicht der Pumpteilwand mit dem darin zu positionierenden Werkzeug.
The invention is explained in more detail below on the basis of exemplary embodiments illustrated in the drawing. It shows:
Fig. 1
a section through the pump part during the welding process;
Fig. 2
a section perpendicular to Figure 1 through the pump part.
Fig. 3
a perspective view of a partially cut open air mattress with a pump part lying inside the mattress;
Fig. 4
a perspective view of the pump part wall to be welded between the cover skins;
Fig. 5
a perspective view of a block of the fuel to be inserted into the pump part;
Fig. 6
a perspective view of the tool used;
Fig. 7
a perspective view of the insert part formed from the elements shown in Figures 4 and 6.
Fig. 8
the top view of a partially cut mattress with a pump part arranged in a corner of the mattress;
Fig. 9
a side view of the object of Fig. 8;
Fig. 10
a perspective view of a block of the fuel to be inserted into the pump part;
Fig. 11
a perspective view showing the position of the pump part wall before welding;
Fig. 12
the top view of the pump part wall shown in Fig. 11; and
Fig. 13
a perspective view of the pump part wall with the tool to be positioned therein.

In Fig. 1 ist das Einschweißen der Pumpteilwand 4 bei dem in den Fig. 1 bis 7 dargestellten Ausführungsbeispiel gezeigt.In Fig. 1 is the welding of the pump part wall 4 in the in the Fig. 1 to 7 shown embodiment.

An der Außenseite der Deckhäute 1a und 1b der Luftmatratze 1 liegen in Richtung der Pfeile bewegbare Platten 29 einer Hochfrequenzschweißmaschine an. Zwischen den Deckhäuten befindet sich ein metallisches Werkzeug 12 in Form eines Steges. An der Innenseite des Werkzeugs 12 liegt die aus einer thermoplastischen Folie bestehende Wand 4 an, deren Ränder 4a oben und unten um die Ränder des Werkzeugs 12 umgestülpt sind. Die Ränder 4a liegen zwischen dem Werkzeug 12 und der oberen Deckhaut 1a bzw. der unteren Deckhaut 1b. An der Oberseite des Pumpteils 2 befindet sich eine in der Deckhaut 1a ausgebildete Einlaßöffnung 9. Die Einlaßöffnung 9 kann ohne weiteres auch auf der gegenüberliegenden Seite liegen. Lie on the outside of the cover skins 1a and 1b of the air mattress 1 Plates 29 movable in the direction of the arrows of a high-frequency welding machine on. There is a metallic one between the cover skins Tool 12 in the form of a web. On the inside of the tool 12 lies against the wall 4 consisting of a thermoplastic film, whose edges 4a above and below around the edges of the tool 12 are turned inside out. The edges 4a lie between the tool 12 and the upper cover skin 1a and the lower cover skin 1b. At the top of the pump part 2 there is a one formed in the cover skin 1a Inlet opening 9. The inlet opening 9 can also easily on the opposite side.

Im Pumpteil 2 befindet sich ein Block 6 aus einem Treibmaterial, insbesondere aus einem offenzelligen Schaumstoffkörper.In the pump part 2 there is a block 6 made of a propellant, in particular from an open-cell foam body.

An beiden Seiten des Werkzeugs 12 ragen mit der Wand 4 verbundene Steglaschen 5 heraus, die im weiteren Verlauf des Verfahrens noch diagonal mit der oberen 1a bzw. unteren Deckhaut 1b verbunden werden. Die Steglaschen 5 dienen dazu, ein Einbeulen der Wand 4 bei zunehmendem Druck im aufzupumpenden Teil zu verhindern.On both sides of the tool 12 project with the wall 4 Bridge tabs 5 out in the further course of the method be connected diagonally to the upper 1a or lower cover skin 1b. The bridge tabs 5 serve to dent the wall 4 prevent increasing pressure in the part to be inflated.

Zur Vermeidung des Ausbeulens nach außen sind einander gegenüberliegende Wände 4 durch eine Zuglasche 30 miteinander verbunden. Bei Verwendung eines Blocks 6 des Treibmaterials muß dieser geteilt ausgebildet sein.To avoid bulging outwards are opposite each other Walls 4 connected to each other by a pull tab 30. At Using a block 6 of the propellant, this must be divided be.

Der zum Teil aufgebrochen gezeichnete Block 6 gibt den Blick auf die Einlaßöffnung 10a eines Einweg-Auslaßventils in Form eines Folienventils 10 frei.The partially broken block 6 shows the view of the Inlet opening 10a of a one-way outlet valve in the form of a film valve 10 free.

In Fig. 2 ist eine der Fig. 1 entsprechende Darstellung für das Einschweißen der Pumpteilwand 20 bei einem in einer Ecke der Luftmatratze angeordneten Pumpteil dargestellt. Die Wand 20 besteht hierbei aus zwei Folienstreifen, die an einem Längsrand durch eine Schweißnaht 20a miteinander verbunden werden. Die Ränder der Folienstreifen übergreifen den oberen bzw. unteren Rand eines Werkzeugs 25. Zwischen den Platten 29 und dem jeweiligen Rand des Folienstreifens liegt die obere Deckhaut 17a bzw. die untere Deckhaut 17b. Deckhaut und Rand des Folienstreifens werden jeweils durch eine Schweißnaht 24 miteinander verbunden.FIG. 2 shows a representation corresponding to FIG. 1 for the welding the pump wall 20 at one in a corner of the air mattress arranged pump part shown. The wall 20 consists of two film strips, which are welded to one longitudinal edge by a weld seam 20a be connected to each other. Spread over the edges of the film strips the upper or lower edge of a tool 25. Between the plates 29 and the respective edge of the film strip is the upper cover skin 17a or the lower cover skin 17b. Cover skin and edge of the film strip are in each case connected to one another by a weld seam 24 connected.

Zu Einlaßöffnung 23 gehört ein nicht dargestellter Verschlußkörper. A closure body, not shown, belongs to inlet opening 23.

Mit der Schweißnaht 20a wird zugleich das freie Ende einer Zuglasche 30 befestigt, die durch einen Schlitz 32 im Werkzeug 25 hindurchgeführt ist. Beim Herstellen der Schweißnaht 19 wird das andere Ende der Zuglasche 30 mit dem Rand der Luftmatratze 1 in einigermaßen gestraffter Lage der Zuglasche 30 verschweißt. Die Zuglasche 30 weist in ihrem mittleren Bereich Löcher 31 auf.The free end of a pull tab also becomes with the weld seam 20a 30 attached, which passed through a slot 32 in the tool 25 is. When producing the weld 19, the other end of the Pull tab 30 with the edge of the air mattress 1 in somewhat tightened Location of the pull tab 30 welded. The pull tab 30 points in holes 31 in its central region.

Wie Fig. 3 zeigt, sind bei einer Anordnung des Pumpteils 2 innerhalb der Luftmatratze die Ränder der Deckhäute 1a und 1b mit einer umlaufenden Seitenwand 3 der Luftmatratze durch Schweißnähte 3a verbunden. Der Pumpteil 2 ist nahe dem Rand der Luftmatratze angeordnet, damit der Benutzer beim Pumpen mit einem Bein auf der Erde stehen kann.As shown in FIG. 3, the pump part 2 is arranged inside the edges of the cover skins 1a and 1b with a circumferential one Side wall 3 of the air mattress connected by welds 3a. The pump part 2 is arranged near the edge of the air mattress, allowing the user to pump with one leg on the ground can stand.

Fig. 4 zeigt die Wand 4 des Pumpteils 2 in der Konfiguration, wie sie sich nach dem Aufpumpen der Luftmatratze 1 darstellt. Die Ränder 4a der Wand 4 sind mit der oberen Deckhaut 1a bzw. mit der unteren Deckhaut 1b verbunden, ebenfalls die freien Ränder der Zuglaschen 5.Fig. 4 shows the wall 4 of the pump part 2 in the configuration as it is presents itself after inflating the air mattress 1. The edges 4a the wall 4 are with the upper cover skin 1a or with the lower Cover skin 1b connected, also the free edges of the pull tabs 5th

Die kleine Öffnung 11 sorgt für eine geringe Rückströmung der Luft, um den gewünschten Druckausgleich zwischen dem Pumpteil 2 und aufzupumpenden Teil herzustellen.The small opening 11 ensures a small backflow of air to the desired pressure equalization between the pump part 2 and pumped up Manufacture part.

Der in Fig. 5 dargestellte Block 6 hat eine mittlere, der Einlaßöffnung 9 gegenüberliegende durchgehende Ausnehmung 7, die dafür sorgt, daß die Einlaßöffnung 9 nicht ungewollt durch den Block 6 verschlossen werden kann. Angedeutet ist in dieser Figur auch die Teilung des Blocks 6 bei Verwendung der Zuglasche 30. The block 6 shown in Fig. 5 has a central, the inlet opening 9 opposite continuous recess 7, which ensures that the inlet opening 9 is not inadvertently closed by the block 6 can be. The division of the. Is also indicated in this figure Blocks 6 when using the pull tab 30.

Das in Fig. 6 dargestellte Werkzeug 12 ist längs einer senkrecht zur späteren Ebene der Luftmatratze 1 verlaufenden Ebene geteilt. In den beiden Teilen befinden sich jeweils Teile der Schlitze 15 für das Hindurchführen der Steglaschen 5. Die Teile des Werkzeugs 12 sind durch Bolzen 13 an den Stirnflächen des einen Teils und durch entsprechende Löcher 14 in der Stirnfläche des anderen Teils gegeneinander zentrierbar. Die Bohrung 16 dient zum Hindurchführen des Folienventils 10.The tool 12 shown in FIG. 6 is perpendicular to one along divided later level of the air mattress 1 level. In the both parts are parts of the slots 15 for the passage of the web brackets 5. The parts of the tool 12 are through Bolt 13 on the end faces of one part and by corresponding Holes 14 in the end face of the other part can be centered against each other. The bore 16 serves for the passage of the foil valve 10.

Fig. 7 zeigt das aus Wand 4 und Werkzeug 12 gebildete Einsatzteil, wie es zwischen die Deckhäute 1a und 1b eingebracht wird. Besonders deutlich ist hier zu sehen, wie die Ränder 4a der Wand 4 um die Ränder des Werkzeugs 12 umgestülpt sind. Die umgestülpten Ränder 4a sind leicht deformierbar, so däß sich für das Entfernen des Werkzeugs 12 keine Schwierigkeiten ergeben.Fig. 7 shows the insert part formed from wall 4 and tool 12, such as it is inserted between the cover skins 1a and 1b. Especially it can clearly be seen here how the edges 4a of the wall 4 around the Edges of the tool 12 are turned inside out. The turned edges 4a are easily deformable, so it is suitable for removing the tool 12 no problems.

Gemäß Fig. 8 ist der hier mit 18 bezeichnete Pumpteil in der Ecke eines Luftmatratzenabschnitts 17 angeordnet. Die obere Deckhaut 17a und die untere Deckhaut 17b sind am Rand durch eine umlaufende Schweißnaht 19 miteinander verbunden, wobei die verbundenen Deckhäute zugleich Teile der Seitenwand des Pumpteils 18 bilden. Die Einlaßöffnung 23 befindet sich in der oberen Deckhaut 17a, was besonders aus Fig. 9 zu ersehen ist. Dort ist auch die Schweißnaht 24 dargestellt, an der die Pumpteilwand 20 mit den Deckhäuten 17a und 17b verbunden ist.According to FIG. 8, the pump part, designated 18 here, is in the corner an air mattress section 17 is arranged. The upper cover skin 17a and the lower cover skin 17b are bordered by a circumferential one Weld 19 connected to each other, the connected outer skins at the same time form parts of the side wall of the pump part 18. The inlet opening 23 is located in the top cover skin 17a, which is particularly notable Fig. 9 can be seen. The weld seam 24 is also shown there which connects the pump part wall 20 to the outer skins 17a and 17b is.

Fig. 10 Zeigt den in den Pumpteil 18 einzusetzenden Block 21 des Treibmaterials, der wie der Block 6 in Fig. 5 eine Ausnehmung 22 aufweist und bei Verwendung einer Zuglasche 13 geteilt ist. Der Block 21 wird zweckmäßigerweise erst nach dem Einschweißen der Wand 20 in den Pumpteil 18 eingesetzt. Dies ist möglich, weil der Pumpteil 18 vor dem Herstellen der Schweißnaht 19 seitlich offen ist.Fig. 10 shows the block 21 to be inserted into the pump part 18 Propellant, which like the block 6 in FIG. 5 has a recess 22 has and is divided when using a pull tab 13. The block 21 is expediently only after the wall 20 has been welded in the pump part 18 used. This is possible because the pump part 18 in front the manufacture of the weld 19 is open on the side.

In Fig. 11 ist gezeigt, daß die Wand 20 aus zwei an einer Längsnaht durch eine Schweißnaht 20a miteinander verbundenen Folienstreifen besteht. Längs der Schweißnaht 24 ist die Wand 20 mit den Deckhäuten 17a und 17b verbunden. An dieser Schweißnaht 24 sind beim Schweißvorgang innen die Ränder des Werkzeugs 25 positioniert.In Fig. 11 it is shown that the wall 20 consists of two on a longitudinal seam foil strips connected to one another by a weld seam 20a consists. Along the weld seam 24 is the wall 20 with the outer skins 17a and 17b connected. At this weld 24 are at Welding process positioned inside the edges of the tool 25.

Aus Fig. 12 ist zusätzlich zu ersehen, daß die Breite der die Wand 20 bildenden Folienstreifen in dem Übergangsbereich 26 zum von der Schweißnaht 19 definierten Rand der Luftmatratze abnimmt, was dem Abnehrhen der Höhe der Luftmatratze in aufgepumptem Zustand entspricht. In diesem Bereich haben die Folienstreifen eine Soll-Dehnstelle 27 in Form eines kurzen Einschnitts mit kleiner Bohrung, um ein Einreißen der sehr dünnen Folienstreifen zu verhindern.It can additionally be seen from FIG. 12 that the width of the wall 20 forming film strip in the transition region 26 to the of Weld 19 defined edge of the air mattress decreases, which the Removing the height of the air mattress when inflated corresponds. In this area, the film strips have a target stretch 27 in the form of a short incision with a small hole to tear to prevent the very thin film strips.

Die freien Enden der Folienstreifen werden mittels der Schweißnaht 19 miteinander verschweißt. An dieser Stelle liegen bei der Herstellung der Schweißnaht 19 also vier Folien aufeinander, nämlich die Deckhäute 17a und 17b sowie die die Wand 20 bildenden Folienstreifen.The free ends of the film strips are by means of the weld seam 19th welded together. At this point lie in the manufacture of the Weld 19 thus four foils on top of each other, namely the cover skins 17a and 17b and the film strips forming the wall 20.

Durch den Abstand 28 zwischen Schweißnaht 24 und Schweißnaht 20a wird die Höhe der aufgepumpten Luftmatratze bestimmt, denn beim Aufpumpen werden die Folienstreifen ausgerichtet, und der zweifache Abstand 28 entspricht dann dem Abstand der Deckhäute 17a und 17b. Durch Variierung des Abstandes 28 kann also die Höhe der aufgepumpten Matratze bestimmt werden. Due to the distance 28 between weld 24 and weld 20a the height of the inflated air mattress is determined, because at Inflating the film strips are aligned, and twice Distance 28 then corresponds to the distance between the outer skins 17a and 17b. By varying the distance 28, the height of the inflated can Mattress to be determined.

Aus Fig. 12 geht ebenso wie aus Fig. 13 hervor, daß ein Ende einer Zuglasche 30 durch die Schweißnaht 20a an der Pumpteilwand 20 festgelegt wird.From Fig. 12 as well as from Fig. 13 it can be seen that one end of a Pull tab 30 fixed by the weld 20a on the pump part wall 20 becomes.

In Fig. 13 ist durch die Pfeile 33 dargestellt, in welcher Weise das Werkzeug zwischen die Folienstreifen der Wand 20 eingebracht und nach dem Einschweißen der Wand 20 zwischen die Deckhäute 17a und 17b wieder entfernt wird.In Fig. 13 is shown by the arrows 33, in which way Tool inserted between the film strips of the wall 20 and after welding the wall 20 between the cover skins 17a and 17b is removed again.

Claims (19)

  1. Method of producing an air mattress, which has the following features:
    the air mattress (1) has a section (2, 18) acting as a pump and an inflatable section;
    the pump section (2, 18) has a closable inlet aperture (9) and communicates with the inflatable section via a one-way outlet valve (10);
    a propellant material (6) is accommodated in the pump section (2, 18);
    in the wall (4, 20) separating the pump section (2, 18) from the inflatable section there is a small aperture (11) which permits the air to flow slightly backwardly from the inflatable section to the pump section (2, 18); and
    a closable outlet aperture is disposed in the inflatable section;
    characterised by the following features:
    the upper covering (1a, 17a) and the lower covering (1b, 17b) of the air mattress, both formed from thermoplastic material, are introduced between an upper and a lower flat plate (29) of a high-frequency welding machine;
    a metallic tool (12, 25), in the form of a web extending perpendicularly to the surface of the air mattress (1), is introduced between the upper covering (1a, 17a) and the lower covering (1b, 17b), the upper and the lower edge of this tool (12, 25) being covered by the edge of the wall (4, 20) of the pump section (2, 18), said wall also being formed from thermoplastic material;
    upon the plates (29) being pressed together and connected to a high-frequency source, the wall (4, 20) is welded at its upper and lower ends to the upper covering (1a, 17a) or respectively to the lower covering (1b, 17b);
    after the welding process, the tool (12, 25) is removed; and
    finally the air mattress (1) is closed at its edges.
  2. Method according to claim 1, characterised in that a tool (12, 25), formed from brass, is used.
  3. Method according to claim 1 or 2, characterised in that the pump section (2) is disposed inside the air mattress, and in that the tool (12), which is basically frame-like, is separable longitudinally of a vertical plane.
  4. Method according to claim 3, characterised in that the circumferential wall (4) has, at least on two oppositely situated sides, web lugs (5) which are inserted through slots (15) in the tool (12) and are connected diagonally to the upper covering (1a) or respectively to the lower covering (1b).
  5. Method according to claim 3 or 4, characterised in that a film valve (10), which is connected to one side of the wall (4), is inserted through an aperture (16) in a lateral wall of the tool (12).
  6. Method according to one of claims 3 to 5, characterised in that, when a block (6) is used as the propellant material, this block is inserted before the wall (4) is welded.
  7. Method according to one of claims 3 to 5, characterised in that the propellant material, in the form of small-sized material or in the form of layers forming a block, is inserted into the pump section (2) through the inlet aperture (9).
  8. Method according to one of claims 3 to 7, characterised in that the edge of the air mattress (1) is terminated by a lateral wall (3) welded between the edges of the upper covering (1a) and the lower covering (1b).
  9. Method according to claim 8, insofar as it refers back to claim 4, characterised in that the free edges of web lugs (5) are simultaneously secured by a circumferential welded edge seam (3a).
  10. Method according to one of claims 4 to 9, insofar as claims 5 to 9 refer back to claim 4, characterised in that the web lugs (5), orientated towards the interior of the air mattress (1), are welded to the upper covering (1a) and to the lower covering (1b), together with the welding of the wall (4), by a special additional tool which is possibly connected to the tool (12).
  11. Method according to one of claims 1 to 10, characterised in that oppositely situated portions of the wail (4) are interconnected by a tensioning lug (30) which determines the mutual spacing of these portions.
  12. Method according to claim 1 or 2, characterised in that the pump section (18) is disposed in a corner of the air mattress (1), and in that the tool (25) extends between contiguous edges of the air mattress (1).
  13. Method according to claim 12, characterised in that an L-shaped tool (25) is used.
  14. Method according to claim 12 or 13, characterised in that a pump section wall (20), which is adapted to the shape of the tool (25) and comprises two strips of film interconnected by a welded seam (20a) at one longitudinal edge, is welded in position.
  15. Method according to claim 14, characterised in that the film valve (10) is welded between the film strips.
  16. Method according to one of claims 12 to 15, characterised in that the ends of the pump section wall (20) are welded by the circumferential welded seam (19) interconnecting the edges of the upper and lower coverings.
  17. Method according to one of claims 14 to 16, characterised in that film strips, having a width which reduces towards the ends of the pump section wall (20), are used.
  18. Method according to one of claims 11 to 17, characterised in that a portion of the wall (20), which separates the pump section (18) from the inflatable section, is internally connected to a tensioning lug (30), the other end of which is secured in the edge of the air mattress.
  19. Method according to claim 18, characterised in that the tensioning lug (30) is connected to the wall (20) via the welded seam (20a), which interconnects the film strips forming the wall (20), and in that the tensioning lug (30) is connected to the edge of the air mattress via the welded seam (19), which interconnects the coverings (17a, 17b).
EP94930199A 1994-04-18 1994-10-20 Process for producing an air mattress with a pump part and a part to be inflated Expired - Lifetime EP0756466B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4413445A DE4413445C2 (en) 1994-04-18 1994-04-18 Method for producing an air mattress with a part acting as a pump and a part to be inflated by the pump
DE4413445 1994-04-18
PCT/EP1994/003451 WO1995028112A1 (en) 1994-04-18 1994-10-20 Process for producing an air mattress with a pump part and a part to be inflated

Publications (2)

Publication Number Publication Date
EP0756466A1 EP0756466A1 (en) 1997-02-05
EP0756466B1 true EP0756466B1 (en) 1998-09-16

Family

ID=6515784

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94930199A Expired - Lifetime EP0756466B1 (en) 1994-04-18 1994-10-20 Process for producing an air mattress with a pump part and a part to be inflated

Country Status (11)

Country Link
US (1) US5746873A (en)
EP (1) EP0756466B1 (en)
JP (1) JPH10501427A (en)
KR (1) KR970702003A (en)
AT (1) ATE171050T1 (en)
AU (1) AU7938894A (en)
CA (1) CA2188265A1 (en)
DE (2) DE4413445C2 (en)
ES (1) ES2124432T3 (en)
GB (1) GB2288567B (en)
WO (1) WO1995028112A1 (en)

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DE102006041332B3 (en) * 2006-09-01 2007-12-20 Gebr. Holzapfel Gmbh & Co. Kg Inflatable hollow body e.g. air-bed, has pump with pump chamber fluidically separated from other pump chamber and body chamber, where gas is introduced into former pump chamber through lockable inlet of former chamber

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US6543073B2 (en) * 2001-08-27 2003-04-08 Hsin-Tsai Wu Inflation seat assembly for an inflatable article
JP2005524805A (en) 2002-05-03 2005-08-18 チャフィー，ロバート，ビー． Self-sealing valve with electromechanical device for actuating the valve
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Also Published As

Publication number Publication date
EP0756466A1 (en) 1997-02-05
DE4413445C2 (en) 1996-02-01
AU7938894A (en) 1995-11-10
DE59406944D1 (en) 1998-10-22
CA2188265A1 (en) 1995-10-26
JPH10501427A (en) 1998-02-10
ATE171050T1 (en) 1998-10-15
DE4413445A1 (en) 1995-10-19
ES2124432T3 (en) 1999-02-01
US5746873A (en) 1998-05-05
GB2288567B (en) 1997-11-12
WO1995028112A1 (en) 1995-10-26
GB9421865D0 (en) 1994-12-14
KR970702003A (en) 1997-05-13
GB2288567A (en) 1995-10-25

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