DE10013492B4 - vehicle seat - Google Patents

Abstract

Vehicle seat, in particular seat for motor vehicles, which has a support structure for at least one seat and a backrest on which a padding facing the seated person is arranged with a solid or detachable cover, wherein for padding and air conditioning of the vehicle seat a spacer fabric with woven or knitted bases and is inserted between these extending spacer threads,
characterized,
- That the spacer textile at least in the region of the seat surface (2.11) is arranged as a padding directly on the support structure (1),
- by extending between the base surfaces (3.1, 3.2),
- In the cross section of goods running diagonally and crossing and / or
- In the longitudinal section diagonal and crossing and / or
- Any direction of manufacture diagonal and intersecting and / or
- Between the base surfaces (3.1, 3.2) approximately perpendicular to this running
Spacer threads load-absorbing, permanently elastic and is provided with continuous rebound properties, and
- a thickness of more than 20 mm ...

Description

The The invention relates to a vehicle seat, in particular a seat for motor vehicles, having the features of the preamble of claim 1.

The Use of this seat is also in air or water vehicles possible.

Vehicle seats, especially seats for Motor vehicles, must high standards sufficient the i. a. be summarized with the term "seating comfort". This counts on the one hand the ergonomic comfort, which solves all problems of mechanical support of the body of the user through the seat, as well as physiological comfort, the ability of the seat, the heat and moisture transport from the body to regulate. Of both factors depend significantly on the well-being and mental and physical performance right through to concentration and responsiveness the user who is responsible for Traffic safety is of enormous importance.

In In both respects, there have been numerous efforts in recent years Vehicle seats under from different application requirements to optimize adult aspects.

to Improvement of ergonomic comfort have been in the last few years Strengthened years ago Molded seats made of foam enforced. These are different adaptable to mechanical requirements and allow a rational Production. The disadvantage of them, however, is under today's waste legislation Considering that foams are not recycled can. This makes the fulfillment of the vehicle manufacturers more difficult and more expensive imposed duty to take back and environmentally friendly Disposal of old vehicles considerably.

One Another disadvantage is the thermophysiological "unfriendliness" of foams, d. H. their lack of Capital, from the body released heat and absorb and dissipate moisture. To remedy this, was previously u. a. tries to find appropriate upholstery coverings. One more way is to introduce through the foam pad "exhaust ducts" up to the reference or between foam pad and cover one by means of fans ventilated To contribute a layer for the removal of heat and the humidity. In the latter variant it is known Spacer textiles with two bases and between them extending spacer threads to use. These spacer textiles (spacer fabric, spacer fabric) However, they are of limited thickness and bearing capacity, so they are below the action of the weight of the person using the seat are compressed and thus the desired Ventilation is impeded or even interrupted. Such seat structures However, there is still the presence of a load-bearing "substructure" made of other materials, in particular foam, ahead, which takes over the task of upholstery. The above-mentioned problem of missing or limited recyclability is thus unchanged.

Of the The invention is therefore based on the object, a vehicle seat, in particular a seat for Motor vehicles, to create a high level of comfort both in ergonomic as well as in physical terms, is inexpensive to produce and can be recycled as far as possible.

These Task is carried out according to the invention solved a vehicle seat, having the features of claim 1.

Further the invention ausgestaltende features are the claims 2 to 13 to remove.

• – gewebte oder gewirkte Grundflächen
• – sich zwischen den Grundflächen erstreckenden Abstandsfäden mit folgenden Erstreckungsrichtungen:
• – im Warenquerschnitt diagonal verlaufende, sich kreuzende Abstandsfäden und/oder
• – im Warenlängsschnitt diagonal verlaufende, sich kreuzende Abstandsfäden und/oder
• – beliebig zur Herstellungsrichtung diagonal verlaufende, sich kreuzende Abstandsfäden und/oder
• – zwischen den Grundflächen annähernd senkrecht zu diesen verlaufende Abstandsfäden.

The spacer fabric suitable for carrying out the invention has the following structure:

• - woven or knitted bases
• - Spacer threads extending between the base surfaces with the following extension directions:
• - In the cross section of goods diagonally extending, intersecting spacer threads and / or
• - In the longitudinal section diagonal, intersecting spacer threads and / or
• - Any distance to the direction of manufacture diagonal, intersecting spacer threads and / or
• - Between the base surfaces approximately perpendicular to these extending spacer threads.

• – keine Parallelverkippung quer zur Herstellungsrichtung bei Flächenbelastung,
• – keine Parallelverkippung längs zur Herstellungsrichtung bei Flächenbelastung,
• – hohe Druckbelastbarkeit.

This essentially causes the following effects:

• No parallel tilting transversely to the direction of production at surface loading,
• No parallel tilting along the direction of production under surface loading,
• - high pressure capacity.

The Spacer textile advantageously has both in peripheral areas as well as in the goods stored areas, in which between the base areas no spacer threads extend. Furthermore, it can be described later will be advantageous if the spacer textile has areas, in which only one of the base areas is available.

The base areas of the spacer textile both parallel to each other (equidistant) as well as different Have distance to each other. The latter includes both the variant that several equidistant ones Areas with different spacing of the bases occur can, as also that the distance of the bases in or between certain Areas steadily or suddenly increases or decreases.

The The invention provides that the filaments forming the spacer textile / filaments preferably made of a single material (eg polyester). This leaves the possibility different fiber types and titers too. It comes especially the later recycling the materials of the vehicle considerably contrary. It is essential continue, that the spacer textile predominantly, but mainly in the spacer threads of the spacer fabric, of threads, preferably monofilaments, with high bending stiffness.

With in such a way designed spacer textile can be combined with a according to trained support structure necessary forms of Realize vehicle seat. So z. B. the opposite midplane (Mirror) clearly raised side cheeks in Sitzflächen- or Backrest region be achieved by the necessary elevation in the supporting structure is included, which then with a consistently equidistant spacer fabric combined. Another possibility consists in a flat or concave support structure with a To combine spacer fabric, in which in a middle area (For example, in the actual seat) the bases of the Spacer fabric have a smaller distance than in the cheeks forming edge regions, in which in turn the bases either equally equidistant run and through a cushion cover in a rounded Be forced to shape or such a rounded shape by one corresponding change the distance between the two base surfaces is generated.

The mentioned above space-free areas are used, inter alia, between with spacer threads occupied areas "joints" to form a better adaptation of the spacer fabric to the shape of the supporting structure as well as the possibility the attachment (eg stapling) of the cover fabric to the upholstery (Spacer textile). Are located If this area is at the edge of the spacer textile, you can be used for its attachment to the support structure.

• – Verlegung von Drähten für Sitzheizungen zwischen oder in den Grundflächen,
• – Nutzung des Raumes zwischen den Grundflächen als Strömungsraumes eines klimatisierenden Luftstromes,
• – bei entsprechender Ausrüstung der Grundflächen Bildung aufblasbarer Bereiche oder
• – Aufnahme sensorischer Elemente zur Ermittlung bestimmter Eigenschaften der den Fahrzeugsitz benutzenden Person (Gewicht, "Anwesenheit" auf dem Sitz etc.).

The spacer fabric can of course be used to achieve previously known effects on vehicle seats, such. B.

• - Laying wires for seat heaters between or in the base areas,
• Use of the space between the bases as the flow space of an air-conditioning air stream,
• - With appropriate equipment of the base areas formation of inflatable areas or
• - Recording sensory elements to determine certain characteristics of the person using the vehicle seat (weight, "presence" on the seat, etc.).

The The invention will be explained in more detail with reference to embodiments. The associated Drawings show in

1 an exploded view of a vehicle seat according to the invention,

2 a top view of the different areas of a seat,

3 a section along section line III-III in 2 .

4a and 4b Sections according to section line IV-IV in 2 .

4c a section along section line IV-IV in 2 for another embodiment of the seat cushion,

5 a section through the seat cushion and seat shell parallel to the x-z plane in 1 .

6a a section through a first embodiment of the seat cushion and seat parallel to the y-z plane in 1 .

6b a section through a second embodiment of the seat cushion and seat parallel to the y-z plane in 1 .

7 a design of a spacer fabric for an alternative embodiment of the seat of a vehicle seat according to the invention and in

8th a schematic representation of the adaptation of the spacer fabric after 7 to a supporting structure.

As for the description of the invention essential elements comprises a vehicle seat, in particular a seat for motor vehicles, a supporting structure 1 with a seat shell 1.1 and a backrest backrest 1.2 on. On this support structure is a padding 2 Applied to a seat pad 2.1 and a backrest cushion 2.2 consists. The seat shell 1.1 is mounted in a known and not shown manner in the vehicle. Likewise, the buildings Elements for the connection and mutual adjustment of seat shell 1.1 and backrest backrest 1.2 not relevant to the invention and therefore not shown.

According to the invention seat cushion 2.1 and backrest cushions 2.2 of a spacer textile, preferably a spacer knitted fabric, with load-bearing properties. It is particularly suitable for picking up a load without being completely compressed. It is also permanently elastic as well as with permanent return characteristics. The latter are properties that are essential for a product such as a vehicle seat, when the seating comfort after a long-term use should be as good as at the beginning. The spacer textile has a thickness of at least 20 mm and at most 80 mm, but preferably at most 60 mm. It is thus able to fulfill the task of upholstery without additional layers.

• – Die Abstandsfäden 4 verlaufen zwischen den Grundflächen 3.1 und 3.2 annähernd senkrecht (4a).
• – Die Abstandsfäden 4 verlaufen zwischen den Grundflächen 3.1 und 3.2 in Warenfortschrittsrichtung (Herstellungsrichtung des Abstandstextils) in einem Winkel, der deutlich von der Senkrechten abweicht (4b).
• – Die Abstandsfäden 4 verlaufen zwischen den Grundflächen 3.1 und 3.2 in Warenquerrichtung in einem Winkel, der deutlich von der Senkrechten abweicht (3).
• – Die Abstandsfäden 4 verlaufen zwischen den Grundflächen 3.1 und 3.2 im Winkel sowohl zur Warenfortschrittsrichtung (Herstellungsrichtung des Abstandstextils) als auch zur Warenquerrichtung in einem Winkel, der deutlich von der Senkrechten abweicht.

The spacer textile has two bases 3.1 and 3.2 (see eg 3 ), between which there are spacer threads 4 extend into the two bases 3.1 and 3.2 are involved. The spacer threads 4 can have different extension directions; spacer threads 4 in turn, with different extension direction can be combined with each other in various ways. The following variants are possible:

• - The spacer threads 4 run between the bases 3.1 and 3.2 almost vertical ( 4a ).
• - The spacer threads 4 run between the bases 3.1 and 3.2 in the direction of product advancement (production direction of the spacer textile) at an angle that deviates significantly from the vertical ( 4b ).
• - The spacer threads 4 run between the bases 3.1 and 3.2 in the transverse direction of the fabric at an angle which deviates significantly from the vertical ( 3 ).
• - The spacer threads 4 run between the bases 3.1 and 3.2 at an angle both to the goods advancing direction (production direction of the spacer textile) and to the transverse direction of the fabric at an angle which deviates significantly from the vertical.

In order to let yourself with appropriate combination of these variants in the spacer textile build up a kind of "framework structure" that suits the Spacer textile gives such a high compressive stiffness that it under load not compressed to zero clearance.

According to the usual seat structure are both seat cushions 2.1 as well as backrest cushions 2.2 divided into different areas. At the seat cushion 2.1 These are the seat 2.11 and the sidewalls arranged laterally therefrom 2.12 , the backrest upholstery 2.2 the mirror 2.21 and the side ridges 2.22 , seat 2.11 and mirrors 2.21 can also be additionally divided into zones. The separation between the different areas are achieved by webs 5 in which are located between the base areas 3.1 and 3.2 no load-bearing spacer threads 4 extend. The bridges 5 thus act between the adjacent areas such as "joints", which allow the areas a mutual change in position. This is for the installation of the spacer textiles in the vehicle seat advantage.

In the 5 . 6a and 6b is the installation of a seat cushion 2.1 in a seat shell 1.1 shown. In a similar way, this could be for the installation of a backrest cushion 2.2 in the back of the backrest 1.2 describe. The spacer fabric from which the seat cushion 2.1 consists, in this case has mutually parallel, so equidistant bases 3.1 and 3.2 on. The later form of the seat is determined by the shape of the seat shell 1.1 modeled. In the seating area 1.11 that with the seat 2.11 the upholstery 2 is occupied, is the seat shell 1.1 formed almost flat or slightly concave. Laterally close the bead areas 1.12 for the side beads 2.12 at the opposite of the seating area 1.11 are clearly sublime. Between seat 2.11 and side ridges 2.12 of the seat cushion 2.1 are webs 5 arranged. These allow for the discontinuous transitions between the seating area 1.11 and bead areas 1.12 the seat shell 1.1 a smooth adjustment of the seat cushion 2.1 to the shape of the seat shell 1.1 ,

To the side beads 2.12 of the seat cushion 2.1 close spacer thread-free edge tabs 6 in at least one of the bases 3.1 and 3.2 on, for the lateral attachment of the seat cushion 2.1 on the seat shell 1.1 can be used. The seat cushion 2.1 is finally covered by a cushion cover 7 , which in the edge area also on the seat shell 1.1 is attached. For the central attachment of the cushion cover 7 with the jetties 5 in the seat cushion 2.1 be braced, which extend in both seat longitudinal and transverse direction (see 2 . 5 and 6 ).

In 6a is clearly seen how a seat cushion 2.1 one in the seat longitudinal direction differently contoured seat shell 1.1 adapts. It is also conceivable, however, to perform the seat in this direction "straight" and to achieve the different height by a spacer fabric, in this direction different distances of the bases 3.1 and 3.2 having. Another variant is a stronger contouring of the seat shell 1.1 by a different distance of the base surfaces 3.1 and 3.2 in the spacer textile to equalize (see 6b ), so that different Ef to achieve perfect effects in the upholstery. A section through the required seat cushion shows 4b ,

The 7 and 8th illustrate an alternative variant of the design of the seat cushion 2.1 (or analogous to the backrest cushion 2.2 ). Again, the seat 2.11 and the side ridges 2.12 through bars 5 separated from each other. In addition, as shown, the seat 2.11 through bars 5 be divided into several areas. The seat 2.11 is again made of a spacer textile, which maintains a constant distance between the base surfaces 3.1 and 3.2 has. This also applies to the Seitenwülste 2.12 too, but there is the distance of the bases 3.1 and 3.2 considerably higher than the seat 2.11 , When installing in the seat shell 1.1 become the side bulges 2.12 to the greatly inflated bead areas 1.12 the seat shell 1.1 created. This can be done either by means of the already mentioned marginal lobes 6 or by acting on the seat pan 1.1 to be fixed upholstery cover 7 respectively.

1

supporting structure

1.1

seat

1.11

sitting area

1.12

bead

1.2

Sit back wall

2

upholstery

2.1

seat cushion

2.11

seat

2.12

side roll

2.2

backrest cushion

2.21

mirror

2.22

side roll

3.1

Floor space

3.2

Floor space

4

spacer thread

5

web

6

peripheral tab

7

cushion cover

Claims (13)

Vehicle seat, in particular seat for motor vehicles, which has a support structure for at least one seat and a backrest on which a padding facing the seated person is arranged with a solid or detachable cover, wherein for padding and air conditioning of the vehicle seat a spacer fabric with woven or knitted bases and is inserted between these extending spacer threads, characterized in that - the spacer textile at least in the region of the seat surface ( 2.11 ) as padding directly on the supporting structure ( 1 ) is arranged, - by itself between the bases ( 3.1 ; 3.2 ) extending, - in the cross-section of goods diagonally extending and intersecting and / or - in the longitudinal section diagonal running and intersecting and / or - to the direction of production diagonal running and intersecting and / or - between the bases ( 3.1 ; 3.2 ) is approximately perpendicular to these extending spacer threads load-absorbing, permanently elastic and provided with lasting return characteristics and - has a thickness of more than 20 mm. Vehicle seat according to claim 1, characterized in that the spacer textile has a thickness of at most 60 mm. Vehicle seat according to claims 1 and 2, characterized in that the spacer textile predominantly, but mainly in the spacer threads ( 4 ) of the spacer fabric, made of threads, preferably monofilaments, with high bending stiffness. Vehicle seat according to one or more of Claims 1 to 3, characterized in that the spacer textile has edge regions and / or regions embedded in the goods, in which between the base surfaces ( 3.1 ; 3.2 ) no load-absorbing spacer threads ( 4 ). Vehicle seat according to one or more of Claims 1 to 4, characterized in that the spacer textile has areas in which only one of the base areas ( 3.1 ; 3.2 ) is available. Vehicle seat according to one or more of claims 1 to 5, characterized in that the base surfaces ( 3.1 ; 3.2 ) of the spacer fabric run parallel to each other. Vehicle seat according to one or more of claims 1 to 6, characterized in that the base surfaces ( 3.1 ; 3.2 ) of the spacer fabric at different distances from each other. Vehicle seat according to one or more of claims 1 to 7, characterized in that the supporting structure ( 1 ) with a spacer textile with equidistant base surfaces ( 3.1 ; 3.2 ) is occupied and raised areas of the vehicle seat by the supporting structure ( 1 ). Vehicle seat according to one or more of claims 1 to 8, characterized in that raised areas of the vehicle seat by areas of the spacer fabric with different spacing of the base areas ( 3.1 ; 3.2 ). Vehicle seat according to one or more of claims 1 to 9, characterized in that curved portions of the seat surface by according contoured areas of the spacer fabric modeled become. Vehicle seat according to one or more of claims 1 to 10, characterized in that arched areas of the seat surface by areas of the spacer fabric with equidistant base areas ( 3.1 ; 3.2 ), to which the final shape through the cushion cover ( 7 ) is abandoned. Vehicle seat according to one or more of claims 1 to 11, characterized in that not by spacer threads ( 4 ) related areas ( 6 ) serve in the edge region of the spacer fabric of the attachment of the spacer fabric to the support structure. Vehicle seat according to one or more of Claims 1 to 12, characterized in that a padding covering covering the spacer textile is preferably provided in areas ( 5 ) is connected to the spacer textile, in which the base surfaces ( 3.1 ; 3.2 ) not by load-absorbing spacer threads ( 4 ) are connected.