US20080309128A1 - Seat Insert, in Particular for a Seat of a Motor Vehicle or an Airplane - Google Patents
Seat Insert, in Particular for a Seat of a Motor Vehicle or an Airplane Download PDFInfo
- Publication number
- US20080309128A1 US20080309128A1 US11/570,573 US57057305A US2008309128A1 US 20080309128 A1 US20080309128 A1 US 20080309128A1 US 57057305 A US57057305 A US 57057305A US 2008309128 A1 US2008309128 A1 US 2008309128A1
- Authority
- US
- United States
- Prior art keywords
- set forth
- seat insert
- approximately
- seat
- covering
- 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.)
- Abandoned
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENTS OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D11/00—Passenger or crew accommodation; Flight-deck installations not otherwise provided for
- B64D11/06—Arrangements of seats, or adaptations or details specially adapted for aircraft seats
- B64D11/0647—Seats characterised by special upholstery or cushioning features
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/56—Heating or ventilating devices
- B60N2/5607—Heating or ventilating devices characterised by convection
- B60N2/5621—Heating or ventilating devices characterised by convection by air
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/56—Heating or ventilating devices
- B60N2/5607—Heating or ventilating devices characterised by convection
- B60N2/5621—Heating or ventilating devices characterised by convection by air
- B60N2/5635—Heating or ventilating devices characterised by convection by air coming from the passenger compartment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/56—Heating or ventilating devices
- B60N2/5607—Heating or ventilating devices characterised by convection
- B60N2/5621—Heating or ventilating devices characterised by convection by air
- B60N2/565—Heating or ventilating devices characterised by convection by air sucked from the seat surface
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/56—Heating or ventilating devices
- B60N2/5607—Heating or ventilating devices characterised by convection
- B60N2/5621—Heating or ventilating devices characterised by convection by air
- B60N2/5657—Heating or ventilating devices characterised by convection by air blown towards the seat surface
Definitions
- the invention relates to a seat insert, in particular for application in an automotive vehicle or aircraft seat.
- the seat insert is provided with a gas-tight covering enclosing a volume at least partly and comprising an inner surface and an outer surface.
- the seat insert comprises a valve through which the amount of gas in the volume can be regulated.
- the covering comprises at least one air conditioning section provided with a perforation.
- the invention relates furthermore to a seat in which one such seat insert to include all kinds of pads serving to support the occupant, particularly also lounger mats.
- the cushion integrated in the seat cushion and/or backrest of the seat or configured as a separate seat pad comprises a covering consisting of two webs of fabric which enclose a volume through which air flows.
- the fabric webs are maintained at a constant spacing away from each other by pile threads running vertically to the fabric webs and are provided at the upper side and underside of the cushion with an elastomeric, air-tight coating. The edges of the fabric webs are hemmed air-tight.
- the coating at the upper side of the cushion is perforated to permit release of the air flow supplied to the cushion via a filler port.
- an air-permeable buffer layer is arranged on the perforation.
- the buffer layer may be formed by a non-woven, an air-permeable foam or an air-permeable cover of the seat.
- To prevent the cushion from being squashed it needs to be pressurized in the range of approximately 10 kPa to approximately 60 kPa.
- the pile threads prevent the cushion from becoming bloated when pressurized.
- One drawback of this known cushion was found to be that although it achieves an even distribution of the pressure when accommodating an occupant, it offers no attenuation. The cushion thus lacks adequate seating or reclining comfort.
- DE 33 06 871 A1 discloses a pad which finds application for an automotive vehicle seat comprising a foamed core made of polyurethane and an air-permeable cover layer.
- the cover layer can be formed either by an air-permeable cover or by a foam laminated non-woven.
- the foamed core features chambers in which half-shells open to the surface of the foamed core are arranged.
- flexible tubes can be foamed in place in the foamed core which are connected to ports joining the surface of the foamed core.
- the half-shells or tubes enable air to be extracted through the air-permeable cover layer to the outer surface of the pad to avoid heat being trapped in a seating surface formed by the pad. Integrating the half-shells or tubes in the foamed core is relatively complicated and costly to fabricate.
- DE 42 11 895 A1 discloses a seat provided with a seat insert concealed by padding.
- the seat insert comprises a pad member made of a porous elastic foam and a cover enclosing the pad member.
- the pad member is defined by the covering it is not connected thereto and thus has less resistance to the pressure exterted by the occupant. This results in hardenings of the seat insert being prevented in use.
- the covering is connected to a pressure generator by means of which the seat insert can be pressurized and depressurized.
- a cover for automotive vehicle seats comprising an air-permeable section made of a woven polyamide yarn reads from EP 0 206 152 B1.
- the cover arranged on a padding of the seats serves to allow air leaving tubes arranged in the padding to flow to the outer surface of the seat to achieve an air conditioning effect.
- the invention is based on the object of sophisticating a seat insert of the aforementioned kind so that a relatively high seating and reclining comfort can now be achieved by comparatively simple and low-cost production.
- a seat is intended to be achieved which now ensures adequate air conditioning for a seat occupant.
- the seat insert in accordance with the invention is the result of having discovered that a pad member made of an open core soft foam, positively material connected to the inner surface of the covering now provides for a relatively high seating and reclining comfort. This is because the soft foam endows the pad member with an elasticity which, for one thing produces an attenuation when supporting an occupant.
- the open core structure of the soft foam ensures an adequate permeability of the pad member which now makes it possible to do away with, for example, air conduit tubes in the pad member as are usual in prior art. A comparatively simple and low-cost production of the seat insert is now assured.
- the soft foam is polyurethane which can be molded hot or cold and also as block foam.
- the soft foam has a specific weight in the range of approximately 15 kg/m3 to approximately 90 kg/m3, preferably approximately 30 kg/m3 to approximately 50 kg/m3.
- the soft foam features a crushing strength in the range of approximately 1.5 kPa to approximately 10 kPa, preferably approximately 2.5 kPa to approximately 5.0 kPa.
- the pad member has a thickness in the range of approximately 3.0 mm to approximately 30.0 mm, preferably approximately 5.0 mm to approximately 15.0 mm, resulting in the seat insert being relatively thin so that it can be directly integrated in a seat or configured as a separate seat cushion.
- the perforation consists of a plurality of holes having a diameter in the range of approximately 0.1 mm to approximately 5.0 mm.
- the holes may be the same in diameter and arranged equispaced to permit particularly simple and low cost production.
- the holes may differ in diameter and be differingly spaced from each other to form a perforation in keeping with physiological and ergonomic requirements.
- the diameter and the number of holes define together with the pressure of the gas in the volume the magnitude of the flow through the seat insert which, as an example, amounts to approximately 100 l/min.
- the pad member can be made of a block foam to achieve relatively low-cost production.
- molding foam offers high flexibility as to shaping the pad member, so that the seat insert, whose contour is mainly determined by the pad member, can be endowed with a design which is also pleasing in appearance.
- it is also of advantage to interconnect the inner surface of the covering and the pad member by back foaming, i.e. positively material connected to the covering resulting from foaming the pad member to enhance flexibility in shaping the pad member and thus the contour of the seat insert.
- the covering is a film preferably made of polyurethane, polyamide or polyethylene.
- a film has sufficient elasticity and can be deep drawn in the foaming mold in which the pad member is foamed to permit professional backfoaming.
- the covering can be a fabric provided with a gas-tight covering as is known from DE 37 05 756 A1.
- the outer surface of the covering is provided with an air-permeable cover.
- the cover made of a textile fabric, for example, enhances the visual appeal of the seat insert so that the seat insert can be designed as a seat cushion which like a slip cover can be arranged on a seat.
- the cover is expediently configured elastic and can be laminated with a foam layer for this purpose.
- the valve is preferably connected to a pump by which the volume is evacuated to a pre-determined vacuum or charged with gas to a predetermined pressure.
- a vacuum is created in the volume which relative to ambient pressure is expediently in the range of approximately 1.0 kPa to approximately 100 kPa, preferably in the range of approximately 5.0 kPa to approximately 30 kPa air is then extracted through the seat insert as described in DE 33 06 871 A1; whereas, if a pressure is generated in the volume which relative to ambient pressure is expediently in the range of approximately 1.0 kPa to approximately 100 kPa, preferably in he range of approximately 5.0 kPa to approximately 30 kPa air is then a gas flow then occurs from the seat insert as described in DE 33 06 871 A1 resulting in air conditioning.
- the flow of gas which in the simplest case is air or a gas scented for example with aromatic substances can then be heated
- the volume is divided into a plurality of chambers each hermetically sealed from the other, a pad member being arranged in each chamber.
- an air conditioning section is assigned to the each chamber so that a volume flow differing in amount and direction can flow through the chambers to result in air conditioning tailored to individual requirements.
- FIG. 1 is a view in perspective of a seat insert
- FIG. 2 is an illustration of a seat in which the seat insert as shown in FIG. 1 is integrated.
- FIG. 2 there is illustrated a seat 30 consisting of a seat cushion 31 and a backrest 32 , each of which comprises a carcass covered by a cover 33 made, for example, of textiles.
- the seat 30 finding application particularly in an automotive vehicle is provided both in the region of the seat cushion 31 and in the region of backrest 32 with a seat insert 10 .
- the seat insert 10 is disposed between the carcass and the air-permeable cover 33 .
- the seat insert 10 is provided with a gas-tight covering 11 comprising an inner surface 12 and an outer surface 13 .
- the covering 11 formed by a film for example of polyurethane or polyethylene or a fabric coated with a gas-tight for example, elastomeric coating encloses a volume 14 in which a pad member 20 is located.
- the pad member 20 positively material connected to the inner surface 12 of the covering 11 is made of an open core soft foam.
- the soft foam is made of polyurethane and has a specific weight in the range of approximately 15 kg/m3 to approximately 90 kg/m3. In the preferred case, the specific weight is, for example, approximately 30 kg/m3.
- the crushing strength is in the range of approximately 1.5 kPa to approximately 10 kPa, preferably approximately 2.5 kPa to approximately 5.0 kPa.
- the pad member 20 whose thickness d is in the range of approximately 3 mm to 30 mm is made of molding foam.
- a film forming the covering 11 can be deep drawn in a foam mold having the contour of the seat insert 10 by means of a vacuum applied to the foam mold. After this, a reaction mixture is filled into the foam mold and the pad member 20 foamed in the foam mold such that the film and covering 11 respectively are backfoamed, the result of which is a reliable positively material connection between the film and the pad member 20 .
- the molding formed by the pad member 20 and the film is removed from the foam mold.
- the seat insert 10 has a relatively complex shape several moldings can be joined together to form the seat insert 10 .
- the films of the moldings forming the covering 11 are welded together along a seam 17 .
- the pad members 20 of the moldings can be bonded together.
- the covering 11 is a coated fabric bonded to the pad member 20 by the inner surface 12 , then it is expedient to additionally seal the two adjoining edge portions of the covering 11 by a tape 18 .
- the seat insert 10 serves to permit air conditioning for the seat occupant supported by the seat 30 .
- the covering 11 features air conditioning sections 15 a , 15 b , 15 c provided with a perforation 16 .
- the perforation 16 is composed of a plurality of holes which depending on the particularly application have a diameter in the range of approximately 0.1 mm to approximately 5.0 mm. The perforation 16 permits a volume flow between the volume 14 and the atmosphere.
- a vacuum of, for example, 50 kPa relative to the ambient pressure or a pressure of, for example, likewise 50 kPa relative to the ambient pressure exists in the volume 14 .
- a valve 40 is arranged in the covering 11 by means of which the amount of air in the volume 14 can be regulated.
- the valve 40 taking the form, for example, of a variable pressure limiting throttle valve is connected to a pump 41 by which the volume is evacuated to a predetermined vacuum or pressurized to a pre-determined pressure.
- a volume flow can be set amounting to 100 l/min, for example.
- the volume 14 When the volume 14 is pressuried in the region of the air conditioning sections 15 a , 15 b , 15 c air flows from the seat insert 10 and through the cover 33 of the seat 30 .
- Comfortable air conditioning can also be achieved by a vacuum being generated in the volume 14 so that air is drawn off from the outer surface of the seat 30 through the seat insert.
- the volume 14 of the seat insert 10 can be divided into a plurality of chambers each hermetically sealed from the other, connected by separate valves 40 , each permitting control independently of the other.
- the seat 30 as described above is characterized by the seat insert 10 creating air conditioning which is simple to manufacture at low-cost and greatly enhances seating and reclining comfort. This is to be attributed particularly to the pad member 20 made of an open core soft foam.
- the open core structure of the soft foam ensures, for one thing, that an amount of air sufficient for generating the desired pressure or vacuum can be stored in the volume 14 and, for another, that the seat insert 10 is sufficiently permeable for the volume flow involved.
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- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Seats For Vehicles (AREA)
- Mattresses And Other Support Structures For Chairs And Beds (AREA)
Abstract
The invention relates to a seat insert (10), in particular for a motor vehicle or an aeroplane seat (30). Said insert is provided with a gas-tight covering (11). The covering (11) at least partially encloses a volume (14) and has an inner surface (12) and an outer surface (13). Also, the seat insert (10) is provided with a valve (40) which can regulate the amount of gas in the volume (14). The covering (11) comprises at least one climatisation section (15 a , 15 b , 15 c) which is provided with a perforation (16). The aim of the invention is to produce a seat insert which very comfortable to sit or lie on and which is comparatively simple and economical to produce. The seat insert is provided with an upholstery element (20) which is made of an open-celled soft foamed material and is connected in a material-fit to the inner surface (12) of the covering (11).
Description
- The invention relates to a seat insert, in particular for application in an automotive vehicle or aircraft seat. The seat insert is provided with a gas-tight covering enclosing a volume at least partly and comprising an inner surface and an outer surface. In addition the seat insert comprises a valve through which the amount of gas in the volume can be regulated. The covering comprises at least one air conditioning section provided with a perforation.
- The invention relates furthermore to a seat in which one such seat insert to include all kinds of pads serving to support the occupant, particularly also lounger mats.
- To avoid heat and moisture becoming trapped between the occupant and the seat supporting the occupant a cushion is known from DE 37 05 756 A1 from which a stream of air flows to cool the occupant and to remove body moisture. The cushion integrated in the seat cushion and/or backrest of the seat or configured as a separate seat pad comprises a covering consisting of two webs of fabric which enclose a volume through which air flows. The fabric webs are maintained at a constant spacing away from each other by pile threads running vertically to the fabric webs and are provided at the upper side and underside of the cushion with an elastomeric, air-tight coating. The edges of the fabric webs are hemmed air-tight. The coating at the upper side of the cushion is perforated to permit release of the air flow supplied to the cushion via a filler port. To achieve an even distribution of the air flow emerging from the cushion an air-permeable buffer layer is arranged on the perforation. The buffer layer may be formed by a non-woven, an air-permeable foam or an air-permeable cover of the seat. To prevent the cushion from being squashed it needs to be pressurized in the range of approximately 10 kPa to approximately 60 kPa. The pile threads prevent the cushion from becoming bloated when pressurized. One drawback of this known cushion was found to be that although it achieves an even distribution of the pressure when accommodating an occupant, it offers no attenuation. The cushion thus lacks adequate seating or reclining comfort.
- By contrast,
DE 33 06 871 A1 discloses a pad which finds application for an automotive vehicle seat comprising a foamed core made of polyurethane and an air-permeable cover layer. The cover layer can be formed either by an air-permeable cover or by a foam laminated non-woven. The foamed core features chambers in which half-shells open to the surface of the foamed core are arranged. As an alternative, flexible tubes can be foamed in place in the foamed core which are connected to ports joining the surface of the foamed core. The half-shells or tubes enable air to be extracted through the air-permeable cover layer to the outer surface of the pad to avoid heat being trapped in a seating surface formed by the pad. Integrating the half-shells or tubes in the foamed core is relatively complicated and costly to fabricate. - Furthermore DE 42 11 895 A1 discloses a seat provided with a seat insert concealed by padding. The seat insert comprises a pad member made of a porous elastic foam and a cover enclosing the pad member. Although the pad member is defined by the covering it is not connected thereto and thus has less resistance to the pressure exterted by the occupant. This results in hardenings of the seat insert being prevented in use. The covering is connected to a pressure generator by means of which the seat insert can be pressurized and depressurized.
- A cover for automotive vehicle seats comprising an air-permeable section made of a woven polyamide yarn reads from EP 0 206 152 B1. Here, the cover arranged on a padding of the seats serves to allow air leaving tubes arranged in the padding to flow to the outer surface of the seat to achieve an air conditioning effect.
- The invention is based on the object of sophisticating a seat insert of the aforementioned kind so that a relatively high seating and reclining comfort can now be achieved by comparatively simple and low-cost production. In addition, a seat is intended to be achieved which now ensures adequate air conditioning for a seat occupant.
- This object is achieved by a seat insert having the features as set forth in claim 1 and by a seat having the features as set forth in claim 21. Further aspects of the seat insert in accordance with the invention and of the claimed seat are defined in claims 2 to 20 and 22 to 24 respectively.
- The seat insert in accordance with the invention is the result of having discovered that a pad member made of an open core soft foam, positively material connected to the inner surface of the covering now provides for a relatively high seating and reclining comfort. This is because the soft foam endows the pad member with an elasticity which, for one thing produces an attenuation when supporting an occupant. For another, the open core structure of the soft foam ensures an adequate permeability of the pad member which now makes it possible to do away with, for example, air conduit tubes in the pad member as are usual in prior art. A comparatively simple and low-cost production of the seat insert is now assured.
- In one preferred aspect of the seat insert in accordance with the invention the soft foam is polyurethane which can be molded hot or cold and also as block foam. To ensure a relatively high shaping compliance of the pad member in contributing towards a high seating and reclining comfort, the soft foam has a specific weight in the range of approximately 15 kg/m3 to approximately 90 kg/m3, preferably approximately 30 kg/m3 to approximately 50 kg/m3. In addition it has been discovered to be an advantage when the soft foam features a crushing strength in the range of approximately 1.5 kPa to approximately 10 kPa, preferably approximately 2.5 kPa to approximately 5.0 kPa.
- It is furthermore of advantage when the pad member has a thickness in the range of approximately 3.0 mm to approximately 30.0 mm, preferably approximately 5.0 mm to approximately 15.0 mm, resulting in the seat insert being relatively thin so that it can be directly integrated in a seat or configured as a separate seat cushion.
- Preferably, the perforation consists of a plurality of holes having a diameter in the range of approximately 0.1 mm to approximately 5.0 mm. The holes may be the same in diameter and arranged equispaced to permit particularly simple and low cost production. As an alternative, the holes may differ in diameter and be differingly spaced from each other to form a perforation in keeping with physiological and ergonomic requirements. The diameter and the number of holes define together with the pressure of the gas in the volume the magnitude of the flow through the seat insert which, as an example, amounts to approximately 100 l/min.
- To achieve a comfort-tailored design of the seat insert it is of advantage to fabricate the pad member of a molding foam. As an alternative the pad member can be made of a block foam to achieve relatively low-cost production. Unlike block foam, molding foam offers high flexibility as to shaping the pad member, so that the seat insert, whose contour is mainly determined by the pad member, can be endowed with a design which is also pleasing in appearance. In this context, it has been discovered, it is also of advantage to interconnect the inner surface of the covering and the pad member by back foaming, i.e. positively material connected to the covering resulting from foaming the pad member to enhance flexibility in shaping the pad member and thus the contour of the seat insert.
- It is of advantage when the covering is a film preferably made of polyurethane, polyamide or polyethylene. Such a film has sufficient elasticity and can be deep drawn in the foaming mold in which the pad member is foamed to permit professional backfoaming. As an alternative the covering can be a fabric provided with a gas-tight covering as is known from DE 37 05 756 A1.
- In a preferred aspect of the seat insert in accordance with the invention the outer surface of the covering is provided with an air-permeable cover. The cover made of a textile fabric, for example, enhances the visual appeal of the seat insert so that the seat insert can be designed as a seat cushion which like a slip cover can be arranged on a seat. The cover is expediently configured elastic and can be laminated with a foam layer for this purpose.
- It is furthermore expedient to arrange the valve replaceable on the covering to make for professional maintenance and facilitated recycling. The valve is preferably connected to a pump by which the volume is evacuated to a pre-determined vacuum or charged with gas to a predetermined pressure. When a vacuum is created in the volume which relative to ambient pressure is expediently in the range of approximately 1.0 kPa to approximately 100 kPa, preferably in the range of approximately 5.0 kPa to approximately 30 kPa air is then extracted through the seat insert as described in
DE 33 06 871 A1; whereas, if a pressure is generated in the volume which relative to ambient pressure is expediently in the range of approximately 1.0 kPa to approximately 100 kPa, preferably in he range of approximately 5.0 kPa to approximately 30 kPa air is then a gas flow then occurs from the seat insert as described inDE 33 06 871 A1 resulting in air conditioning. The flow of gas, which in the simplest case is air or a gas scented for example with aromatic substances can then be heated or cooled for this purpose. - In another preferred aspect of the seat insert in accordance with the invention the volume is divided into a plurality of chambers each hermetically sealed from the other, a pad member being arranged in each chamber. In addition an air conditioning section is assigned to the each chamber so that a volume flow differing in amount and direction can flow through the chambers to result in air conditioning tailored to individual requirements.
- Details and further advantages of the present invention read from the following description of a preferred example embodiment with reference to the drawing illustrating the example embodiment merely diagrammatically in which
-
FIG. 1 is a view in perspective of a seat insert and -
FIG. 2 is an illustration of a seat in which the seat insert as shown inFIG. 1 is integrated. - Referring firstly to
FIG. 2 there is illustrated aseat 30 consisting of aseat cushion 31 and abackrest 32, each of which comprises a carcass covered by acover 33 made, for example, of textiles. Theseat 30 finding application particularly in an automotive vehicle is provided both in the region of theseat cushion 31 and in the region ofbackrest 32 with aseat insert 10. Theseat insert 10 is disposed between the carcass and the air-permeable cover 33. - Referring now to
FIG. 1 there is illustrated how theseat insert 10 is provided with a gas-tight covering 11 comprising aninner surface 12 and anouter surface 13. The covering 11 formed by a film for example of polyurethane or polyethylene or a fabric coated with a gas-tight for example, elastomeric coating encloses avolume 14 in which apad member 20 is located. - The
pad member 20 positively material connected to theinner surface 12 of the covering 11 is made of an open core soft foam. The soft foam is made of polyurethane and has a specific weight in the range of approximately 15 kg/m3 to approximately 90 kg/m3. In the preferred case, the specific weight is, for example, approximately 30 kg/m3. The crushing strength is in the range of approximately 1.5 kPa to approximately 10 kPa, preferably approximately 2.5 kPa to approximately 5.0 kPa. - The
pad member 20 whose thickness d is in the range of approximately 3 mm to 30 mm is made of molding foam. For this purpose a film forming the covering 11 can be deep drawn in a foam mold having the contour of theseat insert 10 by means of a vacuum applied to the foam mold. After this, a reaction mixture is filled into the foam mold and thepad member 20 foamed in the foam mold such that the film and covering 11 respectively are backfoamed, the result of which is a reliable positively material connection between the film and thepad member 20. After backforming, the molding formed by thepad member 20 and the film is removed from the foam mold. When theseat insert 10 has a relatively complex shape several moldings can be joined together to form theseat insert 10. For this purpose the films of the moldings forming the covering 11 are welded together along aseam 17. In addition, thepad members 20 of the moldings can be bonded together. - When, on the other hand, the covering 11 is a coated fabric bonded to the
pad member 20 by theinner surface 12, then it is expedient to additionally seal the two adjoining edge portions of the covering 11 by atape 18. - The
seat insert 10 serves to permit air conditioning for the seat occupant supported by theseat 30. For this purpose, the covering 11 featuresair conditioning sections perforation 16. Theperforation 16 is composed of a plurality of holes which depending on the particularly application have a diameter in the range of approximately 0.1 mm to approximately 5.0 mm. Theperforation 16 permits a volume flow between thevolume 14 and the atmosphere. - For this purpose it is necessary that either a vacuum of, for example, 50 kPa relative to the ambient pressure or a pressure of, for example, likewise 50 kPa relative to the ambient pressure exists in the
volume 14. To produce the difference in pressure between thevolume 14 and the atmosphere avalve 40 is arranged in the covering 11 by means of which the amount of air in thevolume 14 can be regulated. Thevalve 40 taking the form, for example, of a variable pressure limiting throttle valve is connected to apump 41 by which the volume is evacuated to a predetermined vacuum or pressurized to a pre-determined pressure. Depending on the diameter and number of holes of theperforation 16 and difference in pressure between thevolume 14 and the atmosphere a volume flow can be set amounting to 100 l/min, for example. - When the
volume 14 is pressuried in the region of theair conditioning sections seat insert 10 and through thecover 33 of theseat 30. The air flow heated or cooled as required, for example, by means of an air conditioning system of the vehicle permits avoiding heat and moisture being trapped between the seat occupant andseat 30. Comfortable air conditioning can also be achieved by a vacuum being generated in thevolume 14 so that air is drawn off from the outer surface of theseat 30 through the seat insert. In addition it is possible to vary and/or direct the volume flow in the individualair conditioning sections volume 14 of theseat insert 10 can be divided into a plurality of chambers each hermetically sealed from the other, connected byseparate valves 40, each permitting control independently of the other. - The
seat 30 as described above is characterized by theseat insert 10 creating air conditioning which is simple to manufacture at low-cost and greatly enhances seating and reclining comfort. This is to be attributed particularly to thepad member 20 made of an open core soft foam. The open core structure of the soft foam ensures, for one thing, that an amount of air sufficient for generating the desired pressure or vacuum can be stored in thevolume 14 and, for another, that theseat insert 10 is sufficiently permeable for the volume flow involved. -
- 10 seat insert
- 11 covering
- 12 inner surface
- 13 outer surface
- 14 volume
- 15 a air conditioning section
- 15 b air conditioning section
- 15 c air conditioning section
- 16 perforation
- 17 seam
- 18 tape
- 20 pad member
- 30 seat
- 31 seat cushion
- 32 backrest
- 33 cover
- 40 valve
- 41 pump
- d thickness
Claims (24)
1. A seat insert in particular for a seat of an automotive vehicle or aircraft, provided with a gas-tight covering enclosing a volume at least partly and comprising an inner surface and an outer surface and a valve through which the amount of gas in the volume can be regulated, the covering comprising at least one air conditioning section provided with a perforation, characterized by a pad member made of an open core soft foam positively material connected to the inner surface of the covering.
2. The seat insert as set forth in claim 1 , characterized in that the soft foam is made of polyurethane and has a specific weight in the range of approximately 15 kg/m3 to approximately 90 kg/m3 and a crushing strength in the range of approximately 1.5 kPa to approximately 10 kPa.
3. The seat insert as set forth in claim 2 , characterized in that the soft foam has a specific weight in the range of approximately 30 kg/m3 to approximately 50 kg/m3.
4. The seat insert as set forth in claim 2 , characterized in that the soft foam has a crushing strength in the range of approximately 2.5 kPa to approximately 5.0 kPa.
5. The seat insert as set forth in claim 1 , characterized in that the pad member has a thickness (d) in the range of approximately 3.0 mm to approximately 30.0 mm.
6. The seat insert as set forth in claim 5 , characterized in that the pad member has a thickness (d) in the range of approximately 5.0 mm to approximately 15.0 mm.
7. The seat insert as set forth in claim 1 , characterized in that the perforation consists of a plurality of holes having a diameter in the range of approximately 0.1 mm to approximately 5.0 mm.
8. The seat insert as set forth in claim 7 , characterized in that the holes have the same diameter and are arranged equispaced.
9. The seat insert as set forth in claim 1 , characterized in that the pad member is made of a molding foam.
10. The seat insert as set forth in claim 9 , characterized in that the inner surface of the covering is interconnected to the pad member by back foaming.
11. The seat insert as set forth in claim 1 , characterized in that the pad member is made of a block foam.
12. The seat insert as set forth in claim 1 , characterized in that the covering is a film.
13. The seat insert as set forth in claim 12 , characterized in that the film is made of polyurethane, polyamide or polyethylene.
14. The seat insert as set forth in claim 1 , characterized in that the covering is a fabric provided with a gas-tight coating.
15. The seat insert as set forth in claim 1 , characterized in that the outer surface of the covering is provided with an air-permeable cover.
16. The seat insert as set forth in claim 1 , characterized in that the valve is arranged replaceable in the covering.
17. The seat insert as set forth in claim 1 , characterized in that the valve is connected to a pump by which the volume is evacuated to a predetermined vacuum or charged with gas to a predetermined pressure.
18. The seat insert as set forth in claim 17 , characterized in that the vacuum or pressure is in the range of approximately 1.0 kPa to approximately 100 kPa relative to ambient pressure.
19. The seat insert as set forth in claim 18 , characterized in that the vacuum or pressure is in the range of approximately 5.0 kPa to approximately 30 kPa relative to ambient pressure.
20. The seat insert as set forth in claim 1 , characterized in that the volume is divided into a plurality of chambers each hermetically sealed from the other, a pad member being arranged in each chamber, an air conditioning section being assigned to each chamber.
21. A seat, particularly for application in an automotive vehicle or aircraft comprising a seat cushion and a backrest, characterized by a seat insert as set forth in claim 1 .
22. The seat as set forth in claim 21 , characterized in that the seat cushion and/or the backrest (comprises a carcass clad with a cover.
23. The seat as set forth in claim 22 , characterized in that the seat insert is disposed between the carcass and the cover.
24. The seat as set forth in claim 22 , characterized in that the seat insert is arranged on the cover.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004029062.8 | 2004-06-16 | ||
DE102004029062A DE102004029062B3 (en) | 2004-06-16 | 2004-06-16 | Seat insert, comprises a gas tight sleeve with inner and outer surfaces, and a valve which controls the amount of gas in the sleeve |
PCT/EP2005/052749 WO2005123448A1 (en) | 2004-06-16 | 2005-06-14 | Seat insert, in particular for a seat of a motor vehicle or an aeroplane |
Publications (1)
Publication Number | Publication Date |
---|---|
US20080309128A1 true US20080309128A1 (en) | 2008-12-18 |
Family
ID=34833292
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/570,573 Abandoned US20080309128A1 (en) | 2004-06-16 | 2005-06-14 | Seat Insert, in Particular for a Seat of a Motor Vehicle or an Airplane |
Country Status (6)
Country | Link |
---|---|
US (1) | US20080309128A1 (en) |
EP (1) | EP1755919B1 (en) |
AT (1) | ATE461073T1 (en) |
DE (2) | DE102004029062B3 (en) |
ES (1) | ES2341468T3 (en) |
WO (1) | WO2005123448A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20140123462A1 (en) * | 2011-03-22 | 2014-05-08 | Patrick Rollfink | Method and device for assembling at least one seat into an airplane |
US9738186B2 (en) | 2015-06-26 | 2017-08-22 | Oshkosh Defense, Llc | Blast energy attenuating recoverable seat insert |
US20220080869A1 (en) * | 2020-09-15 | 2022-03-17 | Faurecia Sièges d'Automobile | Vehicle seat comprising a support element |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010045729A1 (en) * | 2010-09-15 | 2012-03-15 | Faurecia Innenraum Systeme Gmbh | Composite part and method for producing a composite part |
WO2018075206A1 (en) * | 2016-10-19 | 2018-04-26 | B/E Aerospace, Inc. | Passenger seat having side sleep support assembly |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3137523A (en) * | 1963-09-20 | 1964-06-16 | Karner Frank | Air conditioned seat |
US3872525A (en) * | 1972-01-10 | 1975-03-25 | James M Lea | Inflatable foam pad |
US5597200A (en) * | 1993-11-22 | 1997-01-28 | Amerigon, Inc. | Variable temperature seat |
US5701621A (en) * | 1989-12-04 | 1997-12-30 | Supracor Systems Corporation | Liner for overlaying a mattress |
US5921858A (en) * | 1996-10-07 | 1999-07-13 | Jc Associates Co., Ltd. | Ventilator for use with vehicle seat |
US6273810B1 (en) * | 1999-09-10 | 2001-08-14 | Mccord Winn Textron Inc. | Inflatable air cell having combined pneumatically adjusted occupant support and thermal conditioning |
US20040046437A1 (en) * | 2001-01-05 | 2004-03-11 | Johnson Controls Technology Company | Ventilated seat |
US20050093346A1 (en) * | 2002-11-05 | 2005-05-05 | Witchie Ronald G. | Arrangement and method for providing an air flow within an upholstered seat |
US20070063551A1 (en) * | 2003-11-17 | 2007-03-22 | Kongsberg Automotive Ab | Arrangement for ventilation of a vehicle seat |
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---|---|---|---|---|
DE3119999C2 (en) * | 1981-05-20 | 1984-11-08 | Keiper Recaro GmbH & Co, 7312 Kirchheim | Thermoformable cover material for upholstery |
DE3306871A1 (en) * | 1983-02-26 | 1984-08-30 | Bayer Ag, 5090 Leverkusen | Air-conditionable cushion |
EP0206152B1 (en) * | 1985-06-24 | 1991-01-30 | Adriano Antolini | Perfected cover, particularly for vehicle seats |
DE3617816A1 (en) * | 1986-04-04 | 1987-10-15 | Metzeler Schaum Gmbh | Process for producing an air-permeable upholstery part and upholstery part produced according to the process |
DE3705756A1 (en) * | 1987-02-23 | 1988-10-13 | Metzeler Gmbh | CUSHIONS, IN PARTICULAR FOR SEATS IN MOTOR VEHICLES |
DE4211895A1 (en) * | 1992-04-09 | 1993-10-14 | Daimler Benz Ag | Inflatable car seat - has internal cushion filled with porous foam which can be inflated or deflated by air pump |
DE10023548B4 (en) * | 2000-05-15 | 2004-01-15 | F.S. Fehrer Gmbh & Co. Kg | Air-permeable upholstery element |
-
2004
- 2004-06-16 DE DE102004029062A patent/DE102004029062B3/en not_active Expired - Fee Related
-
2005
- 2005-06-14 EP EP05769816A patent/EP1755919B1/en not_active Not-in-force
- 2005-06-14 ES ES05769816T patent/ES2341468T3/en active Active
- 2005-06-14 US US11/570,573 patent/US20080309128A1/en not_active Abandoned
- 2005-06-14 AT AT05769816T patent/ATE461073T1/en not_active IP Right Cessation
- 2005-06-14 DE DE502005009234T patent/DE502005009234D1/en active Active
- 2005-06-14 WO PCT/EP2005/052749 patent/WO2005123448A1/en active Application Filing
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3137523A (en) * | 1963-09-20 | 1964-06-16 | Karner Frank | Air conditioned seat |
US3872525A (en) * | 1972-01-10 | 1975-03-25 | James M Lea | Inflatable foam pad |
US5701621A (en) * | 1989-12-04 | 1997-12-30 | Supracor Systems Corporation | Liner for overlaying a mattress |
US5597200A (en) * | 1993-11-22 | 1997-01-28 | Amerigon, Inc. | Variable temperature seat |
US5921858A (en) * | 1996-10-07 | 1999-07-13 | Jc Associates Co., Ltd. | Ventilator for use with vehicle seat |
US6273810B1 (en) * | 1999-09-10 | 2001-08-14 | Mccord Winn Textron Inc. | Inflatable air cell having combined pneumatically adjusted occupant support and thermal conditioning |
US20040046437A1 (en) * | 2001-01-05 | 2004-03-11 | Johnson Controls Technology Company | Ventilated seat |
US20050093346A1 (en) * | 2002-11-05 | 2005-05-05 | Witchie Ronald G. | Arrangement and method for providing an air flow within an upholstered seat |
US20070063551A1 (en) * | 2003-11-17 | 2007-03-22 | Kongsberg Automotive Ab | Arrangement for ventilation of a vehicle seat |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20140123462A1 (en) * | 2011-03-22 | 2014-05-08 | Patrick Rollfink | Method and device for assembling at least one seat into an airplane |
US9688420B2 (en) * | 2011-03-22 | 2017-06-27 | Eads Deutschland Gmbh | Method and device for assembling at least one seat into an airplane |
US9738186B2 (en) | 2015-06-26 | 2017-08-22 | Oshkosh Defense, Llc | Blast energy attenuating recoverable seat insert |
US20220080869A1 (en) * | 2020-09-15 | 2022-03-17 | Faurecia Sièges d'Automobile | Vehicle seat comprising a support element |
US11607981B2 (en) * | 2020-09-15 | 2023-03-21 | Faurecia Sièges d'Automobile | Vehicle seat comprising a support element |
Also Published As
Publication number | Publication date |
---|---|
EP1755919B1 (en) | 2010-03-17 |
ES2341468T3 (en) | 2010-06-21 |
DE102004029062B3 (en) | 2005-09-08 |
WO2005123448A1 (en) | 2005-12-29 |
ATE461073T1 (en) | 2010-04-15 |
DE502005009234D1 (en) | 2010-04-29 |
EP1755919A1 (en) | 2007-02-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: METZELER SCHAUM GMBH, GERMANY Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SCHNEIDER, WOLFGANG G.;HEITMANN, ULRICH, DR.;REEL/FRAME:019366/0261 Effective date: 20070312 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |