EP0656758B1 - Aufzupumpender gegenstand, insbesondere luftmatratze, mit einem als pumpe wirkenden teil und einem durch die pumpe aufzupumpenden teil - Google Patents

Aufzupumpender gegenstand, insbesondere luftmatratze, mit einem als pumpe wirkenden teil und einem durch die pumpe aufzupumpenden teil Download PDF

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Publication number
EP0656758B1
EP0656758B1 EP93915813A EP93915813A EP0656758B1 EP 0656758 B1 EP0656758 B1 EP 0656758B1 EP 93915813 A EP93915813 A EP 93915813A EP 93915813 A EP93915813 A EP 93915813A EP 0656758 B1 EP0656758 B1 EP 0656758B1
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EP
European Patent Office
Prior art keywords
section
valve
object according
inflated
pump
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.)
Expired - Lifetime
Application number
EP93915813A
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German (de)
English (en)
French (fr)
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EP0656758A1 (de
Inventor
Josef Graf
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Individual
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Individual
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Publication of EP0656758A1 publication Critical patent/EP0656758A1/de
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Classifications

    • 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
    • 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
    • A47C27/088—Fluid mattresses or cushions incorporating elastic bodies, e.g. foam

Definitions

  • the invention relates to an object to be inflated, in particular an air mattress, with the features specified in the preamble of claim 1.
  • An air mattress of this type is known from US Pat. No. 3,155,991.
  • an independent pump part that can be expanded by spring action is arranged within the part to be inflated.
  • This pump part runs out into a film valve at one end, and a small opening in the wall surrounding the film valve ensures that pressure equalization can take place.
  • a one-way inlet valve is provided for the entry of air into the pump part.
  • the head part serves as a pump part and contains a self-expanding, shaped body, which ensures that after being compressed, the pump part is pressed apart again and the air can flow into the pump part through a one-way inlet valve.
  • a foil valve Located in the wall between the pumping part and the part to be inflated a foil valve without backflow device.
  • a continuously open flow channel with a diameter that is considerably smaller than that of the one-way inlet valve is arranged. This is to ensure that pressure equalization can take place between the part to be inflated and the pumping part.
  • the element causing the walls of the pump part to spread apart must be introduced before the pump part is closed, which is disadvantageous in terms of production technology.
  • the user feels the element that spreads apart the walls in the form of a noticeable resistance, which can possibly also be seen optically, which is also undesirable.
  • the rolling of the air mattress is hindered by the shaped spreading body.
  • An air mattress with an integrated pump part has become known from EP 0 078 763.
  • the head of this mattress forms a closed pump container, the dimensions of which are defined by inflatable chambers.
  • the pump container is connected to the lying part of the mattress via a check valve.
  • By squeezing the head part which can happen through the foot of a user, air is brought into the lying part.
  • the head part cannot be brought under internal pressure, rather its hardness is determined by the inflatable chambers.
  • the invention is based on the object, the structure of the object to be inflated specified in the preamble of claim 1 To simplify old especially with regard to the manufacture, in particular with regard to the construction of the pump part.
  • a propellant is a material that can be compressed, but increases its volume when decompressed and when air is admitted. Examples of such a material are given in claim 2.
  • one of the web walls which is present anyway in the case of inflatable head parts and connects opposing casings, is formed as a partition between the pump part and the part to be inflated.
  • This partition is then provided with an extension, which forms the one-way starter valve in the form of a film valve by folding, which in the part to be inflated protrudes.
  • the pumping part is separated from the part to be inflated by a partition introduced between opposite walls of the object, which means that the pumping part is largely formed by the walls of the object. This also applies if the pump part is part of one of several tubes forming the lying part of a mattress.
  • a small opening then ensures the low backflow of air, which opening is preferably provided either in the part of the film valve which projects into the part to be inflated or in the partition itself.
  • an opening arranged in the casing of the pump part serves as the inlet.
  • This opening can be closed by the foot of the user who is to inflate the object, thus creating a one-way valve.
  • the opening is preferably arranged in the top of the pump part.
  • the invention is explained in more detail below with reference to exemplary embodiments shown in the drawing.
  • the exemplary embodiments relate to the formation of air mattresses.
  • Such items are e.g. inflatable toy figures, islands or the like.
  • FIG. 1 an air mattress of the usual basic shape is shown. It consists of a head part and a lying part.
  • the head part represents the pump part 1, the lying part the part 2 to be inflated.
  • the pump part 1 has an inlet opening 3 on the side, which can be closed by a plug 4 to be applied from the outside.
  • the plug 4 can be of any conventional type, e.g. with thread or with a snug fit. He must only be able to prevent the passage of air through the inlet opening 3.
  • valve block 5 is accommodated, which is arranged in the embodiment in which these parts are otherwise airtight strips.
  • the pump part 1 receives a propellant 1a (not shown).
  • a propellant is a material that increases its volume when air enters.
  • An open-celled plastic foam material is preferably used as the propellant, which can also be accommodated in the form of waste in the head part.
  • a material of this type expands after being compressed when air enters.
  • the valve block 5 shown in plan view in FIG. 2 essentially has a rectangular shape.
  • the valve block 5 has a channel 6, which connects the interior of the pump part 1 with the interior of the part 2 to be inflated.
  • a bore 7 is provided transversely to this channel, through which the channel 6 is divided into a section 6a directed towards the pump part and a section 6b directed towards the part to be inflated.
  • the bore 7 has a larger diameter than the channel 6 and is continuous in the embodiment.
  • the valve block 5 is flattened from the thickest central region at least in the longitudinal direction of the air mattress to thin wings 8, which facilitates the placement of the valve block between the foils glued together in the transition region between the head part and the lying part.
  • a one-way valve 9 of a conventional and known type is arranged in the section 6a of the channel 6 directed towards the pump part 1.
  • the special feature of this one-way valve 9 is that when the head part is depressed it allows the air pressed out of it to pass through easily, but that it cooperates with a device 9a which allows a small amount of air to flow back in the opposite direction. This backflow can be achieved through the deliberate use of the leakage of the one-way valve 9.
  • the valve closure body which e.g. is designed in the form of flaps, be provided with a small opening.
  • the bore 7 serves to receive a valve body 10, as shown in two embodiments in FIGS. 4 and 5.
  • Fig. 4 shows a cylinder slide in which an annular groove 12 is provided between the dimensions of the bore 7 corresponding cylinder surfaces 11.
  • the valve body 10 has an annular collar 13 with which the fully inserted valve body 10 rests against the top of the bore 7.
  • it has a grip groove 14 on the upper side of the annular collar 13.
  • the valve body 10 has two positions when it is inserted into the bore 7: the annular groove 12 corresponds once to the channel 6; in this case the head part 1 is connected to the lying part 2, and the flow channel thus formed is sealed off from the atmosphere by the cylinder surfaces 11.
  • the upper, larger cylinder surface 11 provides a seal both between the head part 1 and the lying part 2 and with respect to the atmosphere.
  • valve body 10 in the form of a rotary slide valve, as shown in FIG. 5, can also be used.
  • This valve body 10 also has cylinder surfaces 15, but a wall 16 which remains from the original cross section is created between these cylinder surfaces by segment-shaped recesses 17 on both sides.
  • the cylinder surfaces 15 of the rotary valve always provide a seal against the atmosphere, while when the valve body 10 is rotated, which is done by means of a handle 18, a passage through the channel 6 is open when the wall 16 is in the longitudinal position and closed when the wall is in the transverse position.
  • the air mattress is inflated and deflated in the following way:
  • the plug 4 If the plug 4 is now removed, then air can enter the interior of the pump part 1 through the inlet opening 3.
  • the propellant 1 a accommodated in the pump part 1 increases in volume until the pump part 1 is filled to some extent with air. Then e.g. pressed by the foot of the user of the pump part 1 so that the air is pressed via the channel 6 into the part 2 to be inflated when the control valve is open. This pumping process is repeated until the lying part is inflated a little more than is desired in the end result.
  • the interruption of the backflow can also be carried out before a complete pressure equalization has taken place.
  • the valve body 10 is pulled out completely, and the air is removed from the air mattress by being compressed or folded.
  • the air is conveyed from both sides through the sections 6a and 6b of the channel 6 to the bore 7 and exits through this. If the air mattress is compressed sufficiently, then the valve body 10 is inserted into the bore 7, and also the Plug 4 is inserted. This is necessary because otherwise the pump part 1 has been inflated in an undesirable manner. When compressed, the air mattress can then be folded up. The cycle described can then start again.
  • FIG. 6 shows an air mattress in a basic shape corresponding to the object of FIG. 1. It consists of a head part and a lying part.
  • the head part represents the pump part 1, the lying part the part 2 to be inflated.
  • the head part has the inlet opening 3 already described above, which can be closed by a plug 4 to be applied from the outside.
  • the air mattress shown in FIG. 7 is constructed in three parts and is therefore also suitable for setting up a seat, the head part belonging to the seat part.
  • the pump part 1 is arranged in the lower lying part.
  • the propellant 1a is located in the pump part.
  • the part 2 to be inflated in the embodiment according to FIG. 7 consists of the head part, the middle part and part of the lower part of the mattress.
  • a film valve 19 is provided which allows the air from the pump part to pass through easily from the part to be inflated, but in the opposite direction enables a small backflow of air from the part to be inflated into the pump part.
  • the film valve 19 receives the training described in FIGS. 8 and 9.
  • the film valve consists of two film strips 23 connected to one another at the edges, these film strips being rough on the inside, so that the desired leakage of the valve is achieved in the opposite direction.
  • the outlet side of the valve is expanded in the form of a cone 24, as a result of which the end of the valve which projects freely into the part 2 to be inflated is prevented.
  • FIG. 9 Another embodiment of the film valve shown in FIG. 8, consisting of two film strips 23 connected to one another at the edges, is shown in FIG. 9. The edges of the film strips 23 are then connected to one another on three sides, and an opening 25 is arranged in at least one of the film strips for the escape of air.
  • Holes 26 are located in the wall 28 of the pump part 1. These holes are covered by a thin flexible film 27. The film is connected to the wall 28 in the middle. This valve acts as a one-way outlet valve, because from the pump part 1, which one has to think of in FIG. 11 to the right of the wall 28, the air can reach the part to be inflated through the holes 26 while lifting off the film 27.
  • the film 28 covers the holes 26, so that in the opposite direction, apart from the desired leaks, the air cannot easily get from the part 2 to be pumped into the pump part 1.
  • FIG. 12 shows a clamping bar 29 which can replace the film valve 20 arranged between the middle part and the head part of the mattress, which is designed in the same way as the film valve 19 arranged between the pump part 1 and the part 2 to be inflated.
  • This clamping bar consists of two mutually movable bars 29, between which the air passage is clamped.
  • the connection of the clamping bars 29 to one another is carried out by pins 31 which are connected to one of the clamping bars and engage in holes 32 of the other clamping bar.
  • the pins 31 have at their upper end an outer bead which deforms when inserted into the holes 32 and bulges outwards after passage, so that the connection of the clamping bars to one another is thereby ensured.
  • Inflating and deflating the air mattress is done in a similar manner to that described in FIGS. 1 to 5. Only the mattress is rolled up from the pump part 1 in the direction of the outlet opening 21. Before that, of course, the plug 22 closing this outlet opening must be removed.
  • the amount of air flowing back through the film valve 19 must be smaller than the amount of air entering the pump part 1 through the inlet opening 3.
  • the inlet sides of the film valves 19 and 20 are preferably designed so that the film strips 23 forming these valves are connected to the edge of the wall of the pump part 1 by spreading apart. This ensures an opening of the membrane valves that is always necessary for the passage of air.
  • the air mattress shown in plan view in FIG. 13 consists, as usual, of a head part and a lying part.
  • the pump part 1 is formed within the head part, while the part to be inflated is designated by 2.
  • the part to be inflated comprises the entire lying part and the larger part of the head part. The connection between these parts is established through a through opening 33.
  • inlet opening 3 In the top of the pump part 1 there is an inlet opening 3 which can be closed by a stopper 4.
  • an outlet opening 21 which can be closed by a stopper.
  • this opening is arranged in a corner of the lying part, but it can be located anywhere within the part to be inflated.
  • Web walls 34 are arranged in the head part and limit the distance between the outer walls of this part.
  • One of these web walls is designed as a partition wall 34a, which separates the pump part 1 from the remaining part of the head part which is to be attributed to the part 2 to be inflated.
  • This partition is provided with an extension 35a, which forms a film valve 35 by folding along the folding line 36 (FIG. 16), the free edges, which lie opposite the folding point, being connected to one another within the film valve are.
  • the film valve 35 protrudes into the part 2 to be inflated and is arranged so that its inlet side is opened in the pump part when there is excess pressure.
  • the fact that the film valve 35 is practically formed as part of the partition wall 34a results in a particularly economical production.
  • Fig. 14 it is shown that the pump part 1 is more or less filled by the fuel 1a.
  • the propellant consists of open-cell plastic foam, in the form of waste, which can be introduced into the pump part through the inlet opening 3 after the manufacture of the mattress.
  • residues and / or sections of the foam processing industry can be used as waste, but also synthetic wool, stuffed animal filling material or the like.
  • the use of colored soft balls is also conceivable, in particular if the object to be inflated is designed to be transparent.
  • An air-permeable wall 39 is arranged in front of the film valve 35 and prevents the small-sized propellant material from entering the film valve.
  • the dimensions of this wall 39 must be such that it does not hinder the movements of the pump part, but prevents the inlet opening of the film valve from opening too large in order to avoid cracks forming on its lateral weld seams or glue points.
  • the air mattress is inflated and deflated in a manner similar to that described above.
  • the pump part 1 is arranged at the lower corner of the lying part.
  • the remaining part of the mattress represents the part 2 to be inflated.
  • an inlet opening 3 which can be closed by a plug 4.
  • the pump part 1 is filled with a propellant 1a having the composition described there.
  • An air-permeable wall 39 which is at a distance from the wall 38 into which the film valve 35 is inserted, is also provided here to prevent access of the propellant 1a to the film valve 35.
  • the wall is provided with a horizontal slot and the edges delimiting this slot are bent up towards the part to be inflated and that the foils forming the foil valve 35 are glued in between these edges.
  • the small opening 37 is arranged, which ensures that the air flows back.
  • the inlet opening 3 does not necessarily have to be arranged on the upper side of the pump part 1, but that the inlet opening 3a shown in dashed lines, which is to be closed by the plug 4a, can also be provided at another location on the pump part , for example on the side.
  • the cross section of the inlet opening 3a must be substantially smaller than the cross section of the film valve 35, so that when it is compressed of the pumping part, most of the air flows through the film valve 35 into the part 2 to be inflated. It is clear that a certain loss of air through the inlet opening 3a cannot be avoided.
  • the air mattress is inflated and deflated in a manner similar to that described for the other exemplary embodiments.
  • the inlet opening 3 or 3a is in the form of one or more perforated plates 46 which are provided with a somewhat smaller bore diameter compared to the plug diameter and relative to the hole in the casing 40.
  • the outlet opening 21 can also be designed in the same way.
  • FIGS. 21 to 23 Another very economical embodiment of the pump part 1 is shown in FIGS. 21 to 23.
  • the partition 44 consists of two film parts 44a connected to one another at the edges, the outer edge of the tapering broad end having to correspond to the entire circumference of the tube 42 forming the pump part 1.
  • the outer edge is connected to the peripheral wall of the tube 42.
  • the extensions 45a form the film valve 35, in front of whose inlet opening there is also an air-permeable wall 39, in order to prevent pieces of the propellant 1a from penetrating into the opening of the film valve 35.
  • In the partition 44 there is a small opening 37 which ensures that the air flows back.
  • the pump part 1 is delimited in one of the tubes 42 arranged longitudinally here, which form the lying part of the mattress, by the partition wall 44 and by the seams 43 separating the tubes 42 from one another.
  • the seams 43 provided on both sides of the pump part 1 cross the lateral corners of the trapezoidal part of the film parts 44a.
  • the air mattress is inflated and deflated in a manner similar to that in the exemplary embodiments described above.

Landscapes

  • Mattresses And Other Support Structures For Chairs And Beds (AREA)
  • Massaging Devices (AREA)
  • Invalid Beds And Related Equipment (AREA)
EP93915813A 1992-08-04 1993-07-06 Aufzupumpender gegenstand, insbesondere luftmatratze, mit einem als pumpe wirkenden teil und einem durch die pumpe aufzupumpenden teil Expired - Lifetime EP0656758B1 (de)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
DE9210427U 1992-08-04
DE9210427U DE9210427U1 (de) 1992-08-04 1992-08-04 Luftmatratze mit einem als Pumpe wirkenden Teil
DE9212489U 1992-09-16
DE9212489U DE9212489U1 (de) 1992-08-04 1992-09-16 Luftmatratze mit einem als Pumpe wirkenden Teil
DE9308870U DE9308870U1 (de) 1992-08-04 1993-06-15 Aufzupumpender Gegenstand, insbesondere Luftmatratze, mit einem als Pumpe wirkenden Teil und einem durch die Pumpe aufzupumpenden Teil
DE9308870U 1993-06-15
PCT/EP1993/001748 WO1994003089A1 (de) 1992-08-04 1993-07-06 Aufzupumpender gegenstand, insbesondere luftmatratze, mit einem als pumpe wirkenden teil und einem durch die pumpe aufzupumpenden teil

Publications (2)

Publication Number Publication Date
EP0656758A1 EP0656758A1 (de) 1995-06-14
EP0656758B1 true EP0656758B1 (de) 1996-11-27

Family

ID=27436460

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93915813A Expired - Lifetime EP0656758B1 (de) 1992-08-04 1993-07-06 Aufzupumpender gegenstand, insbesondere luftmatratze, mit einem als pumpe wirkenden teil und einem durch die pumpe aufzupumpenden teil

Country Status (18)

Country Link
US (1) US5632055A (zh)
EP (1) EP0656758B1 (zh)
JP (1) JPH07509385A (zh)
KR (1) KR950702800A (zh)
CN (1) CN1093250A (zh)
AT (1) ATE145532T1 (zh)
AU (1) AU673182B2 (zh)
CA (1) CA2140867A1 (zh)
CZ (1) CZ23895A3 (zh)
DE (4) DE9210427U1 (zh)
DK (1) DK0656758T3 (zh)
ES (1) ES2097524T3 (zh)
GB (1) GB2269743B (zh)
GR (1) GR3022652T3 (zh)
HK (1) HK193196A (zh)
PL (1) PL307267A1 (zh)
TW (1) TW374011B (zh)
WO (1) WO1994003089A1 (zh)

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DE9210427U1 (de) * 1992-08-04 1992-09-24 Graf, Josef, 8201 Frasdorf Luftmatratze mit einem als Pumpe wirkenden Teil
DE9315105U1 (de) * 1993-10-05 1994-02-17 Graf, Josef, 83112 Frasdorf Aufzupumpender Gegenstand, insbesondere Luftmatratze mit einem als Pumpe wirkenden Teil und einem durch die Pumpe aufzupumpenden Teil
DE9404627U1 (de) * 1994-03-18 1994-05-11 Graf, Josef, 83112 Frasdorf Aufzupumpender Gegenstand, insbesondere Luftmatratze
DE4413445C2 (de) * 1994-04-18 1996-02-01 Josef Graf Verfahren zum Herstellen einer Luftmatratze mit einem als Pumpe wirkenden Teil und einem durch die Pumpe aufzupumpenden Teil
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DE29505621U1 (de) * 1995-03-31 1995-05-18 Graf, Josef, 83112 Frasdorf Aufzupumpender Gegenstand, insbesondere Luftmatratze
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US20150282634A1 (en) * 2014-04-04 2015-10-08 American Recreation Products, LLC. Inflatable device having integrated bellows
US10029745B2 (en) * 2014-06-09 2018-07-24 Wall Global, LLC. Inflatable panel for an aerodynamic fairing assembly
US9848689B2 (en) * 2015-07-31 2017-12-26 Nemo Equipment, Inc. Sleeping bag having waterproof bottom and side walls and enclosure for a sleeping pad
US9949582B2 (en) * 2016-07-09 2018-04-24 Intensive Therapeutics, Inc. Foam cushion cover
AR109220A1 (es) 2016-08-01 2018-11-07 Polygroup Macau Ltd Bvi Sistemas para el control de la presión de colchones de aire
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CN108143563B (zh) * 2017-09-04 2021-04-09 强化治疗学有限公司 泡沫垫套
CN108937326A (zh) * 2018-08-13 2018-12-07 德清星辰户外用品有限公司 一种户外休息垫
CN111802857A (zh) 2019-04-10 2020-10-23 Jd贾科有限公司 可折叠床
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Also Published As

Publication number Publication date
DE9212489U1 (de) 1992-11-19
HK193196A (en) 1996-11-01
GB2269743B (en) 1996-04-17
CA2140867A1 (en) 1994-02-17
ATE145532T1 (de) 1996-12-15
GB9315862D0 (en) 1993-09-15
CN1093250A (zh) 1994-10-12
PL307267A1 (en) 1995-05-15
DK0656758T3 (da) 1997-06-02
TW374011B (en) 1999-11-11
US5632055A (en) 1997-05-27
DE59304629D1 (de) 1997-01-09
DE9308870U1 (de) 1993-09-02
WO1994003089A1 (de) 1994-02-17
AU673182B2 (en) 1996-10-31
CZ23895A3 (en) 1995-08-16
GR3022652T3 (en) 1997-05-31
ES2097524T3 (es) 1997-04-01
EP0656758A1 (de) 1995-06-14
DE9210427U1 (de) 1992-09-24
GB2269743A (en) 1994-02-23
AU4564893A (en) 1994-03-03
JPH07509385A (ja) 1995-10-19
KR950702800A (ko) 1995-08-23

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