Source: https://patents.google.com/patent/DE102011087054A1/en
Timestamp: 2020-08-12 15:48:20
Document Index: 642244361

Matched Legal Cases: ['arts 5', 'arts 5', 'art 6', 'arts 5', 'art 6', 'arts 5', 'art 6', 'arts 5', 'arts 5']

DE102011087054A1 - Seat for vehicle such as motor car, has back-frame support portions whose side portions are fixedly or detachably connected to rear portion of seat portion at set angular position - Google Patents
Seat for vehicle such as motor car, has back-frame support portions whose side portions are fixedly or detachably connected to rear portion of seat portion at set angular position
DE102011087054A1
DE102011087054A1 DE201110087054 DE102011087054A DE102011087054A1 DE 102011087054 A1 DE102011087054 A1 DE 102011087054A1 DE 201110087054 DE201110087054 DE 201110087054 DE 102011087054 A DE102011087054 A DE 102011087054A DE 102011087054 A1 DE102011087054 A1 DE 102011087054A1
DE201110087054
Tomislav Galesic
Stefanie Behrend
2011-11-24 Application filed by Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG
2011-11-24 Priority to DE201110087054 priority Critical patent/DE102011087054A1/en
2013-05-29 Publication of DE102011087054A1 publication Critical patent/DE102011087054A1/en
239000000835 fibers Substances 0.000 claims abstract description 60
239000004033 plastics Substances 0.000 claims abstract description 20
229920002430 Fibre-reinforced plastic Polymers 0.000 claims description 11
239000011151 fibre-reinforced plastic Substances 0.000 claims description 11
229920002748 Basalt fiber Polymers 0.000 claims description 4
240000000218 Cannabis sativa Species 0.000 claims description 4
239000000806 elastomers Substances 0.000 claims description 4
239000011487 hemp Substances 0.000 claims description 4
229920005372 Plexiglas® Polymers 0.000 claims description 3
229920002292 Nylon 6 Polymers 0.000 description 2
The seat has a backrest (2) which is fixed at seat portion (9). A backrest frame (1) is provided with a through opening (3) in which the spring element (4) is arranged. The backrest frame is made of a reinforced fibers or plastic. The side portions of back-frame support portions (5,6) are fixedly or detachably connected to rear portion of seat portion at set angular position.
The invention relates to a vehicle seat, in particular for a motor vehicle, with the features specified in the preamble of claim 1.
Such a vehicle seat has in the DE 10 2009 016 888 A1 a backrest, which is attached to a seat part angle adjustable. The backrest provides a backrest frame with a passage opening in which a wire mat is arranged. The support of the lateral bars and protective sections on the backrest and the backrest on the seat part of the vehicle seat is the publication can not be removed. The elastically deformable wire mat in the passage opening of the back frame should not or hardly support the spars and protective sections. At least the side areas of the backrest frame each formed by a spar, a protective section and a connecting region should be made of a metal which causes an increase in weight of the vehicle seat and an increase in the fuel consumption of the motor vehicle while driving.
The invention is based on the object to provide a vehicle seat, in particular for a motor vehicle, with the features in the preamble of claim 1, which has a high load capacity and is simpler and less expensive to manufacture and has a low weight.
This task is through the. Features solved in claim 1. Advantageous embodiments of the invention are the dependent claims.
The vehicle seat, in particular for a motor vehicle, has a backrest with a backrest frame, in which a passage opening is formed. In the passage opening at least one spring element is arranged, on which the back of a seat occupant can be indirectly supported at least partially elastically. The backrest frame is essentially made of a fiber-reinforced plastic and each fixed or detachably connected in a side region with a back frame support member. The two back frame support members are each adjustable in angle and locked in the set angular position with an associated rear portion of the seat part of the vehicle seat. With the made of a fiber reinforced plastic back frame and a respective lateral support of the back frame on a back frame support member of the vehicle seat is highly resilient and easier and cheaper to manufacture. He also has a low weight, whereby the fuel consumption is reduced while driving the motor vehicle. The backrest frame may be formed in one piece or in several parts, for example in shell shape. The backrest frame can completely enclose the passage opening. Likewise, the passage opening may be formed open on at least one peripheral region. The made of a plastic and reinforced by fibers back frame can have a high load capacity and at least be slightly elastic deformable, whereby the back frame can be adapted to the body shape of the seat occupant in an accidental load on the backrest of the vehicle seat. The load capacity of the back frame can be adjusted depending on the selected plastic and by a choice and arrangement of the fibers in the plastic to the expected loads that act differently in a normal use of the vehicle seat and in an accident. For example, an accidental load on the backrest of the vehicle seat is introduced into the respectively associated rear area of the seat part via the back frame support parts fixedly or detachably connected in each case in a side region of the back frame. The laterally opposite each connected to the back frame back frame support members that allow angular adjustment and locking the backrest relative to the seat portion of the vehicle seat, for example, can be made of a metal that can absorb a high accident-related stress. For example, made of a metal back frame support parts can also absorb accidental forces of a safety belt, which is supported or deflected, for example, in an upper lateral region of the backrest. The shape and cross section of the back frame support parts can be specified almost arbitrarily. The example of a solid material or tubular back frame support members may, for example, at least partially arbitrarily curved and / or straight in the longitudinal direction and / or be formed in cross section, for example, so variable that its modulus is adapted to the expected load. The fibers in the plastic of the back frame may, for example, at least partially by basalt fibers, boron fibers, glass fibers, ceramic fibers, silica fibers, steel fibers, aramid fibers, carbon fibers, polyester fibers, nylon fibers, polyethylene fibers, Plexiglas fibers, wood fibers, flax fibers , Hemp fibers or sisal fibers may be formed. The fibers may for example at least partially form a woven fabric, scrim, Multiaxialgelege, embroidery, mesh, fleece or a mat or a fine cut and / or at least partially formed by short or long or continuous fibers. For easy stiffening of the backrest frame, the backrest frame may have, at least in some areas, stiffening ribs that are easy to form, that are formed differently and For example, at least in some areas may be connected via transverse ribs. For example, a high load capacity and stiffness of the backrest frame can be achieved in a simple manner, if the stiffening ribs and transverse ribs form at least each on one side open stiffening honeycomb. The load-bearing frame made of fiber-reinforced plastic, which can be made resilient in different ways, is unexpectedly suitable, in particular, for absorbing it in a receiving space in the backrest frame and supporting it in the load case, which is intended to protect the seat occupant in the event of an accident. The fiber-reinforced plastic may be any plastic, such as a thermoplastic or thermoset or elastomer or thermoplastic elastomer. For example, the plastic is the thermoplastic polyamide 6, which, for example, fortification 40% glass fibers are attached.
An embodiment of the invention will be explained in more detail with reference to a drawing. Show it
1 a simplified front view of the left front vehicle seat of a motor vehicle, wherein a back frame of the backrest of the vehicle seat is shown without a foam part and without a reference of the backrest,
2 the in 1 illustrated backrest frame of the backrest of the vehicle seat in a perspective from the right rear.
In 1 a left front vehicle seat of a motor vehicle is shown in a simplified front view, wherein a back frame 1 the backrest 2 the vehicle seat is shown without a foam part used and without a reference to the backrest used. The foam part, not shown, is substantially in front of the back frame 1 arranged and forms an elastic pad. The cover, not shown, of the backrest 2 covers the backrest frame 1 and the foam part at least from the front. For attachment of the cover, a non-illustrated piping is used in the embodiment, which is introduced into a peripheral loop of the cover and after attachment of the cover under tension of the reference in an edge groove on the back of the back frame 1 intervenes.
The backrest frame 1 the backrest 2 has a passage opening 3 on, in the at least one spring element 4 is arranged, on which at least one back region of the seat occupant can be indirectly supported. The backrest frame 1 is essentially made of a fiber reinforced plastic and at its two opposite side portions each with a in 2 illustrated back frame support member 5 . 6 fixed or detachably connected, the bottom over a crossbar 7 are rotatably connected. The backrest frame support parts 5 . 6 are a seat transverse axis 8th adjustable in angle and lockable in the set angular position with the rear area of the seat part nine connected.
In the embodiment, the backrest frame 1 essentially in one piece and over the circumference of the passage opening 3 closed trained. In addition, the backrest frame points 1 in the embodiment at least partially stiffening ribs on its front side 10 on, over the cross ribs 11 are connected such that the stiffening ribs 10 and transverse ribs 11 at least partially, each on one side open stiffening honeycomb 12 form.
To reinforce the plastic of the backrest frame 1 provided fibers may at least partially by basalt fibers, boron fibers, glass fibers, ceramic fibers, silica fibers, steel fibers, aramid fibers, carbon fibers, polyester fibers, nylon fibers, polyethylene fibers, Plexiglas fibers, wood fibers, flax fibers, hemp fibers or Sisal fibers be formed and for example at least partially form a tissue, scrim, Multiaxialgelege, embroidery, braid, fleece or a mat or a fine cut. The fibers may be formed wholly or partially by short or long or continuous fibers.
The backrest frame 1 forms in the embodiment on its near the adjacent vehicle outside frame inside a receiving space 13 for an airbag marked by a dot pattern 14 who is supposed to inflate the seat user by inflating it. Here are the recording room 13 and the airbag 14 in a middle lateral height range of the backrest 2 or the backrest frame 1 formed or arranged and covered by the foam part, not shown, which is at least indirectly covered by a cover, not shown. The cover has in the direction of inflation of the airbag in front of the airbag at least indirectly rupture of the airbag tear seam, which is not shown.
The passage opening 3 in the backrest frame 1 is each side of a longitudinal strut 15 . 16 and above and below each one of the longitudinal struts 15 . 16 at least indirectly connecting cross strut 17 . 18 limited. Here, in the embodiment, the through hole 3 in the backrest frame 1 in a medium height range from the two longitudinal struts 15 . 16 of the backrest frame 1 narrowed laterally.
In addition, in the embodiment with the upper cross member 17 of the backrest frame 1 a headrest support 19 detachably or integrally connected, with which a headrest, not shown, is connected or connectable and / or support.
The headrest support 19 has in the embodiment two with a lateral distance from the upper cross member 17 of the backrest frame 1 upwardly projecting headrest side members 20 . 21 on, each at least indirectly either detachable or integral with a central head restraint plate 22 are connected, at which the headrest, not shown, is supported at least partially.
The backrest frame 1 made of plastic is stiffened in the embodiment of at least one area that is particularly stressed during use of the vehicle seat and / or in an accident, by at least one embedded fiber mat and / or a metal part.
To support the backrest frame 1 on the seat part nine the vehicle seat is the backrest frame 1 each in a side area with the over a lower crossbar 7 non-rotatably cross-linked backrest frame support member 5 . 6 fixed or detachable, for example connected by screws. The backrest frame support parts 5 . 6 are adjustable in angle and lockable in the set angular position with the rear portion of the seat part 6 connected and thereby allow an angular adjustment of the backrest 2 on the seat user and lock in the set angular position.
Made of a plastic and reinforced by fibers back frame 1 On the one hand has a high load capacity and on the other hand, at least somewhat elastic deformability, which in an accidental load on the backrest 2 the vehicle seat an elastic adjustment of the backrest frame 1 to the body shape of the seat occupant allows. The load capacity of the backrest frame 1 may be adapted depending on the plastic chosen and by a choice and arrangement of the fibers in the plastic to the expected loads that act differently in a normal use of the vehicle seat and in an accident. For example, an accidental load on the backrest 2 of the vehicle seat is about each in a side region of the back frame 1 with the backrest frame 1 firmly or releasably connected back frame support parts 5 . 6 in the respectively associated rear portion of the seat part 6 initiated. The laterally opposite each with the backrest frame 1 connected backrest frame support parts 5 . 6 providing an angular adjustment and locking of the backrest 2 opposite the seat part 6 allow the vehicle seat, for example, be made of a metal that can accommodate a high accidental load. The example made of a metal back frame support parts 5 . 6 can also absorb accidental forces of a safety belt, for example, in an upper lateral region of the backrest 2 supported or diverted. The shape and cross section of the back frame support parts 5 . 6 can be specified almost arbitrarily.
The fiber reinforced plastic may be any plastic and thus a thermoplastic or thermoset or elastomer or thermoplastic elastomer. For example, the plastic is the thermoplastic polyamide 6, which, for example, fortification 40% glass fibers are attached.
The invention is of course deviating from the single embodiment executable. The vehicle seat is usable on any vehicle. The backrest of the vehicle seat can be secured in a lockable manner via the laterally symmetrical or asymmetrically arranged backrest frame support parts by means of any mechanism relative to the seat part of the vehicle seat and locked in the set angular position. Each back frame support member may be one or more parts made of at least one material, such as metal. The arranged in the passage opening of the back frame at least one spring element can be arbitrarily formed, for example, by a spring mat and fixed or releasably connected to the back frame. The fiber-reinforced plastic may be any plastic, such as a thermoplastic or thermoset or elastomer or thermoplastic elastomer. The plastic reinforcing fibers may be at least partially covered by basalt fibers, boron fibers, glass fibers, ceramic fibers, silica fibers, steel fibers, aramid fibers, carbon fibers, polyester fibers, nylon fibers, polyethylene fibers, plexiglass fibers, wood fibers, flax fibers, hemp Be formed fibers or sisal fibers. The fibers may at least partially form a fabric, scrim, Multiaxialgelege, Sticke, mesh, fleece or a mat or a fine cut and / or at least partially formed by short or long or continuous fibers. The fibers in the plastic or additional fibers or fiber mats in the plastic can be arranged at particularly stressed points and, for example, reinforced locally by metal parts. The backrest frame can be formed in one piece or in several parts after its manufacture. Preferably, the back frame is formed closed over the circumference of the passage opening. For stiffening the backrest frame, in particular at particularly heavily loaded areas, the backrest frame can at least partially stiffening ribs have, which are possibly at least partially connected via transverse ribs and form, for example with these at least partially open on one side stiffening honeycomb. The stiffening ribs and transverse ribs may have any, for example, at least partially straight, single or multiple angled or curved course. The back frame made of plastic and the back frame support members can be surprisingly designed so resilient that the back frame can support an airbag and / or a safety belt, which is deflected for example in an upper side region of the backrest of the vehicle seat. For example, the airbag can form a receiving space for the airbag on its inner side, which is close to the adjacent vehicle outer side, which can inflate the seat occupant in the event of an accident. The back frame and the at least one spring element in the passage opening of the back frame can be covered at least on the front side in the normal direction of travel of at least one foam part, which is at least indirectly covered by a cover. An at least regional exit of the inflatable in an accident airbag from the receiving space in the backrest frame may be possible in different ways, for example by the formation of at least indirectly rupture of the airbag tear seam in relation. At the upper portion of the back frame, a headrest or a headrest support, to which a headrest is to be fastened or supported, can be detachably or fixed in any manner. The fiber-reinforced plastic may, for example, have a grain on at least one visible surface area. The use of a fiber-reinforced plastic for the backrest frame and the support of the back frame on the seat part on each in a side region connected to the back frame back frame support parts, the vehicle seat has no significant temperature dependence and can be manufactured with low effort in mass production. The vehicle seat is designed in very different forms, for example, similar to a bucket seat, wherein the weight of the vehicle seat can be kept low. With the vehicle seat all current and in the foreseeable future coming legal requirements, for example, crash requirements for whiplash and airbag deployment, can be met. In an accidental impact of, for example, a motor vehicle from behind, the vehicle seat protects the seat occupant, regardless of whether the motor vehicle bounces at a lower or higher speed, characterized in that the seat occupant with a back region against the resistance of the at least one spring element in the through hole to concern other back areas of the seat occupant can at least partially dip into the passage opening in the backrest frame on at least one region of the backrest supported by the backrest frame and the backrest frame thereby elastically adapts to the back area of the seat occupant. In this way it is achieved that in the accidental impact, for example, another motor vehicle from behind the head and upper body of the seat occupant in approximately the same way with an approximately same acceleration and speed against the back of the vehicle seat and possibly catapulted back, so that in the accident Impact a Whiplash effect or a shear stress of the cervical vertebrae of the seat occupant is avoided in a passive manner or substantially reduced, which could cause damage to the cervical vertebrae of the seat occupant or a cervical spine syndrome. By this passive measure a complex active headrest on the vehicle seat to avoid accidental injury in the neck area of a seat occupant is not required. A further energy absorption and forwarding of the impact energy in the seat part of the vehicle seat via the preferably stiffer formed back frame support members which are each connected in a side region with the back frame angle adjustable and lockable in the set angular position.
DE 102009016888 A1 [0002]
Vehicle seat, in particular for a motor vehicle, having a backrest, which is fastened angularly adjustable on a seat part and has a backrest frame with a passage opening in which at least one spring element is arranged, characterized in that the backrest frame ( 1 ) are essentially made of a fiber-reinforced plastic and in each case in a side region with a back frame support part ( 5 . 6 ) is fixed or detachably connected, the angle adjustable and lockable in the set angular position with the rear portion of the seat part ( nine ) connected is.
Vehicle seat according to claim 1, characterized in that the backrest frame ( 1 ) after its manufacture substantially in one piece and over the circumference of the passage opening ( 3 ) is closed.
Vehicle seat according to claim 1 or 2, characterized in that the backrest frame ( 1 ) at least partially stiffening ribs ( 10 ), or additionally the stiffening ribs ( 10 ) at least partially over transverse ribs ( 11 ), or in addition the stiffening ribs ( 10 ) and transverse ribs ( 11 ) at least each on one side open stiffening honeycomb ( 12 ) form.
Vehicle seat according to one of claims 1 to 3, characterized in that the fibers at least partially by basalt fibers, boron fibers, glass fibers, ceramic fibers, silica fibers, steel fibers, aramid fibers, carbon fibers, polyester fibers, nylon fibers, polyethylene fibers, Plexiglas Fibers, wood fibers, flax fibers, hemp fibers or sisal fibers are formed, or additionally at least partially form a fabric, scrim, Multiaxialgelege, embroidery, mesh, fleece or a mat or a fine cut and / or at least partially by short or long or continuous fibers are formed.
Vehicle seat according to one of claims 1 to 4, characterized in that the backrest frame ( 1 ) on its side adjacent to the vehicle exterior side frame inside a receiving space ( 13 ) for an airbag ( 14 ).
Vehicle seat according to claim 5, characterized in that the receiving space ( 13 ) and the airbag ( 14 ) in a middle lateral height range of the backrest ( 2 ) are formed or arranged and are covered by a foam part, which is at least indirectly covered by a cover.
Vehicle seat according to claim 6, characterized in that the cover in the direction of inflation of the airbag ( 14 ) in front of the airbag ( 14 ) one of the airbag ( 14 ) has at least indirectly tear-open tear seam.
Vehicle seat according to one of claims 1 to 7, characterized in that the passage opening ( 3 ) in the backrest frame ( 1 ) each side of a longitudinal strut ( 15 . 16 ) and at the top and bottom of one of the longitudinal struts ( 15 . 16 ) at least indirectly connecting cross strut ( 17 . 18 ) is limited.
Vehicle seat according to claim 8, characterized in that the two longitudinal struts ( 15 . 16 ) of the backrest frame ( 1 ) the passage opening ( 3 ) narrow sideways in a medium height range.
Vehicle seat according to one of claims 1 to 9, characterized in that in each case above the passage opening ( 3 ) with the backrest frame ( 1 ) or optionally with the upper transverse strut ( 17 ) of the backrest frame ( 1 ) a headrest support ( 19 ) is releasably attached or integrally connected to a headrest is connected or connectable.
Vehicle seat according to claim 10, characterized in that the headrest support ( 19 ) two at a lateral distance from the upper transverse strut ( 17 ) of the backrest frame ( 1 ) upwardly projecting headrest side members ( 20 . 21 ), each at least indirectly either detachable or integral with a headrest plate ( 22 ) are connected to the headrest is at least partially supported.
Vehicle seat according to one of claims 1 to 11, characterized in that the backrest frame ( 1 ) made of plastic on at least one area which is particularly stressed when using the vehicle seat and / or in an accident, is stiffened by a metal part.
Vehicle seat according to one of claims 1 to 12, characterized in that the backrest frame ( 1 ) in each case in a side region with a backrest frame supporting part ( 5 . 6 ) is fixed or detachably connected, the angle adjustable and lockable in the set angular position with the rear portion of the seat part ( nine ) connected is.
Vehicle seat according to one of claims 1 to 13, characterized in that the fiber-reinforced plastic is a thermoplastic or thermoset or elastomer or thermoplastic elastomer.
DE201110087054 2011-11-24 2011-11-24 Seat for vehicle such as motor car, has back-frame support portions whose side portions are fixedly or detachably connected to rear portion of seat portion at set angular position Pending DE102011087054A1 (en)
DE201110087054 DE102011087054A1 (en) 2011-11-24 2011-11-24 Seat for vehicle such as motor car, has back-frame support portions whose side portions are fixedly or detachably connected to rear portion of seat portion at set angular position
DE102011087054A1 true DE102011087054A1 (en) 2013-05-29
ID=48287724
DE201110087054 Pending DE102011087054A1 (en) 2011-11-24 2011-11-24 Seat for vehicle such as motor car, has back-frame support portions whose side portions are fixedly or detachably connected to rear portion of seat portion at set angular position
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