Source: https://patents.google.com/patent/CN103496334B/en
Timestamp: 2020-02-18 22:23:56
Document Index: 524866482

Matched Legal Cases: ['Application No. 201080016574', 'Application NO.61', 'application NO.61', 'art 74', 'art 74', 'art 74']

CN103496334B - Including the backrest combined and the seat back strengthening composite bed - Google Patents
Including the backrest combined and the seat back strengthening composite bed Download PDF
CN103496334B
CN103496334B CN201310357377.8A CN201310357377A CN103496334B CN 103496334 B CN103496334 B CN 103496334B CN 201310357377 A CN201310357377 A CN 201310357377A CN 103496334 B CN103496334 B CN 103496334B
CN201310357377.8A
CN103496334A (en
A·库尔卡尼
K·O·格鲁姆
P·A·佐尼
B·德尼斯
P·杜哈梅尔
G·布尔恩西克
2009-03-02 Priority to US20891509P priority Critical
2009-03-02 Priority to US61/208,915 priority
2010-03-02 Application filed by 巴斯夫欧洲公司 filed Critical 巴斯夫欧洲公司
2010-03-02 Priority to CN201080016574.8A priority patent/CN102395297B/en
2014-01-08 Publication of CN103496334A publication Critical patent/CN103496334A/en
2016-08-10 Publication of CN103496334B publication Critical patent/CN103496334B/en
Including the backrest combined and the seat back strengthening composite bed, including the backrest formed by the first polymeric material, it is used for supporting passenger.The bracket formed by the material different from the first polymeric material of backrest is fixed to backrest to couple seat cushion.Strengthen composite bed be attached to backrest and formed by the second polymeric material and a plurality of fiber being inlaid in described second polymeric material.First polymeric material of backrest is mechanically engaged with bracket, and does not has bond vitrified between first polymeric material and described bracket of described backrest.First polymeric material of backrest is melt bonded to strengthen the second polymeric material of composite bed, thus backrest, bracket and enhancing composite bed is combined.
Including the backrest combined and the seat back strengthening composite bed
This divisional application is based on Application No. 201080016574.8, filing date on 03 02nd, 2010, the divisional application of the Chinese patent application of invention entitled " including the backrest combined and the seat back strengthening composite bed ".This Chinese patent application be international application no be the National Phase in China of the international application of PCT/US2010/025858.
U.S. Provisional Patent Application NO.61/208 of patent application claims submission on March 2nd, 2009, the priority of 915 and ownership equity, described patent application NO.61/208, the entire disclosure of 915 is incorporated by reference in the application especially.
Present disclosure relates generally to the seat back of a kind of application seat-assembly in a vehicle.
Seat-assembly for the vehicles includes: seat cushion, and described seat cushion extends generally horizontally；And seat back, described seat back generally vertically extends from seat cushion, is used for supporting passenger.Metal bracket is fixed with bolt, is welded or other method is attached to seat back and seat cushion, in order to seat back is connected to seat cushion.Seat back typically comprises metal framework and covers the wadding of metal framework.Metal bracket and metal framework must sufficiently thick, firmly, the most flexible and reasonable in design, described metal bracket and described metal framework is made to be appropriately attached to the vehicles and be fully supported the power being applied on seat back by passenger, and by required impact test.In addition, in order to other passengers in the passenger sat in seat-assembly and the vehicles provide sufficiently buffering, the wadding covering metal framework is the thickest and heavy.
In current vehicles market, especially automobile market, it is disadvantageous for increasing weight, and among other reasons, this is primarily due to this fuel economy that will reduce vehicle.The heavier weight of the various metal materials owing to being suitable for application in the vehicles, so the weight of metal framework is relatively heavy and be therefore disadvantageous.In addition, formed by metal construction, so bracket is relatively heavy owing to seat back being connected to the bracket self of seat cushion.But, due to the intensity of metal, so in the design of seat back framework in the seat-assembly of current popular and bracket, metal is typically first-selected material, in order to seat-assembly can be fully supported passenger.
Another key factor in current vehicle market is the artistic outward appearance of tool and the sense of touch of the vehicles.The especially internal part of the vehicles, because internal part is often seen, and the passenger of the vehicles usually contacts with described internal part.The artistic outward appearance of gratifying tool not only allows passenger satisfied, and delivers a kind of high-quality and luxurious sensation.But, metal framework and metal bracket that seat back is connected to seat cushion are thick and heavy.This kind of thicker structure of framework and bracket is typically used in the intensity providing enough, but but reduces the aesthetic appearance of seat back, and inconsistent with the contemporary trend that passenger pursues streamlined external form at vehicle interior.And, being not only low-quality and be the sensation of dated technology of the thickness of the wadding of many front seat back and the outward appearance transmission of heaviness.But, owing to knowing wadding and ability that is with low cost and that there is abundant concealed metal framework and do not seen by passenger, so the thickest and heavy wadding is widely used on the vehicles.
Advantageously a kind of seat-assembly of exploitation, described seat-assembly having lighter weight and has the streamlined and gratifying artistic outward appearance of tool, the most also having enough intensity to be fully supported passenger.
Summary of the invention and beneficial effect
A kind of seat back, including backrest, described backrest is formed by the first polymeric material, is used for supporting passenger.Bracket is fixed to backrest to be attached to seat cushion, and described bracket is formed by the second material of the first polymeric material being different from backrest.Strengthen composite bed and be connected to backrest, and formed by the second polymeric material and a plurality of fiber being inlaid in described second polymeric material.Bracket is Overmolded by the first polymeric material, and the first polymeric material is melt bonded to strengthen the second polymeric material of composite bed so that backrest, bracket and enhancing composite bed combine.
Additionally, a kind of method forming seat back, described seat back includes: the backrest formed by the first polymeric material；By the second polymeric material and a plurality of fibroplastic enhancing composite bed being inlaid in described second polymeric material；And bracket, described method includes being placed in mould enhancing composite bed.Described method also includes being placed in mould bracket and makes bracket adjoin enhancing composite bed, and the first polymeric material is heated to molten condition.Described method also includes being incorporated in mould the first polymeric material being in molten condition, described first polymeric material is made to strengthen between composite bed and bracket and contact with described enhancing composite bed and described bracket, so that the second polymeric material bond vitrified making described first polymeric material and strengthen composite bed, and described first polymeric material is made to be mechanically engaged bracket.
By the first polymeric material of backrest, strengthening the seat back that the combination of composite bed and bracket formed and have thin and fairshaped outward appearance, it is joyful that described outward appearance makes that passenger obtains aesthetically.In addition, backrest the first polymeric material, strengthen composite bed and bracket and strengthen each other, in order to provide enough intensity to support passenger.In addition, the first polymeric material and enhancing composite bed relative lightweight, thus advantageously reduce the weight of seat-assembly.
When considered in conjunction with the drawings, by referring to described in detail below, other advantage of the present invention will be easy to understand, and the most also will be better understood when.Wherein:
Fig. 1 is the perspective view of seat-assembly, and described seat-assembly includes that seat cushion and seat back, described seat back include backrest and be installed to the seat cushion of described backrest；
Fig. 2 is the perspective view at the back side of the seat back not having seat cushion；
Fig. 3 is the exploded view of the seat back including backrest, enhancing composite bed and bracket；
Fig. 4 is the sectional view of the seat back along the lines 4-4 in Fig. 2；
Fig. 5 is the perspective view of the bracket before combining with backrest；
Fig. 6 is the perspective view strengthening composite bed before combining with backrest；
Fig. 7 A is the exploded view of the embodiment strengthening composite bed；
Fig. 7 B is the exploded view of another embodiment strengthening composite bed；
Fig. 7 C is the exploded view of another embodiment strengthening composite bed；
Fig. 8 is the perspective view for forming the preforming tool strengthening composite bed；With
Fig. 9 is the sectional view of the mould for forming backrest.
Referring to the drawings, wherein, in all views, identical reference indicates identical part, and seat-assembly integrally illustrates with 20.With reference to Fig. 1, seat-assembly 20 includes: seat cushion 22, and described seat cushion 22 extends generally horizontally；With seat back 24, described seat back 24 generally vertically extends to support passenger's (not shown) from seat cushion 22.Seat-assembly 20 is arranged in (not shown) in the vehicles of such as automobile, aircraft, train, ship etc..
As shown in Figure 2, seat back 24 includes backrest 26.As described further below, wadding 28 can be installed at the front side 30 of backrest 26, and the rear side 32 of backrest is typically not covered with.With reference to Fig. 3, backrest 26 is connected to bracket 34, and described bracket 34 is attached to seat bottom 22, and strengthens composite bed 36 and be connected to backrest 26 to strengthen backrest 26.
With reference to Fig. 4, and as set forth further below, backrest 26, enhancing composite bed 36 and bracket 34 are together with each other to form single global facility.In other words, strengthen composite bed 36 and bracket 34 is all installed to backrest 26 to form single part, i.e. couple in firm and the most permanent mode.It should be appreciated that show enhancing composite bed 36 and bracket 34 with exploded view in figure 3 just to explanation and the purpose of illustration, it practice, after seat back 24 is formed, backrest 26, the composite bed 36 strengthened and bracket 34 are inseparable.
Referring again to Fig. 3, backrest 26 is formed by polymeric material, and for the purpose identified, described polymeric material is hereinafter referred to as the first polymeric material 38.Typically, the first polymeric material 38 is thermoplastic, and under any circumstance, described first polymeric material 38 can be heated to pliable and tough or melted state to shape.Such as, the first polymeric material 38 can be injection molding, in order to described first polymeric material 38 can be molded into various structure and shape.As set forth further below, no matter injection moulding or other method, the first polymeric material 38 of backrest 26 is overmolded bracket 34 and strengthens on composite bed 36 so that the first polymeric material 38 combines with bracket 34 and enhancing composite bed 36.
In the embodiment that the first polymeric material 38 is injection molding, first polymeric material 38 typically such type, described type produces by netted (net-shaped) product produced by injection moulding, i.e. complete when removing from mould 40.In other words, the first polymeric material 38 of backrest 26 removed from mould 40 need not afterwards secondary finishing processing.
Such as, the first polymeric material 38 can be nylon, and for the purpose identified, described nylon hereinafter will be referred to as the first nylon.As an example, the first nylon is fibre-reinforced nylon, and the example of this fibre-reinforced nylon is the nylon of glass fiber reinforcement, and the nylon of this glass fiber reinforcement is commercially available.It should be appreciated that on the premise of without departing substantially from the character of the present invention, backrest 26 can by any kind of enhancing or the suitable polymeric material that do not strengthens formed, such as, acronitrile-butadiene-styrene (ABS).
With reference to Fig. 3, the first polymeric material 38 of backrest 26 defines: the first pillar 42；Second pillar 44, described second pillar 44 is spaced apart with described first pillar 42；With centre portion 46, described centre portion 46 extends to the second pillar 44 from the first pillar 42.First pillar 42 and the second pillar 44 in the vertical direction upwardly extend from seat cushion 22.Centre portion 46 caves in relative to the first pillar 42 and the second pillar 44, in order to support the trunk of passenger between the first pillar 42 and the second pillar 44.
As shown in Figure 4, bracket 34 anchors to backrest 26, and described bracket 34 is attached to seat cushion 22, in order to backrest 26 is connected to seat cushion 22.With reference to Fig. 3, bracket 34 is arranged along the first pillar 42 of backrest 26.In addition, at the second pillar 44, the second bracket 48 can anchor to backrest 26.Second bracket 48 is the mirror image of bracket 34, and described second bracket 48 anchors to backrest 26 in the way of identical with bracket 34.For simplicity, the most detailed description bracket 34, but it is to be understood that, the description to bracket 34 is also applied for the second bracket 48.Alternately, the second bracket 48 can be differently configured from bracket 34 and/or described second bracket 48 can be attached to backrest 26 in the way of different from bracket 34.
With reference to Fig. 5, bracket 34 is formed by the second material 50 of the first polymeric material 38 being different from backrest 26.Typically, the second material 50 of bracket 34 is further defined to metal, such as steel.It is to be understood, however, that on the premise of without departing substantially from the character of the present invention, bracket 34 can be formed by any kind of rigid material.Bracket 34 includes feature, and described feature for being attached to described bracket 34 and being used for described bracket 34 is attached to seat cushion 22 by other parts.
Strengthen composite bed 36 and strengthen the first pillar the 42, second pillar 44 and/or centre portion 46.In the embodiment show in figure 3, strengthen composite bed 36 to be lengthened out to strengthen the first pillar 42 along the first pillar 42 in the vertical direction.Equally, the embodiment shown in Fig. 3 includes the second enhancing composite bed 36 spaced apart with strengthening composite bed 36, and wherein the second enhancing composite bed 36 is lengthened out to strengthen the second pillar 44 along the second pillar 44 in the vertical direction.Another increases Strong composite bed 36 (not shown) can combine with centre portion 46.
With reference to Fig. 7 A-C, strengthen composite bed 36 and be formed by polymeric material (purpose hereinafter this polymeric material in order to identify is referred to as the second polymeric material 52) and a plurality of fiber 54 (that is, multiply) being inlaid in the second polymeric material 52.As described further below, typically, first polymeric material 38 of backrest 26 and the second polymeric material 52 of enhancing composite bed 36 are compatible, in order to the first polymeric material 38 of backrest 26 and the second polymeric material 52 of enhancing composite bed 36 are fused together and are together with each other.
As shown in figures 7 a-c, strengthen composite bed 36 and can include multiple sheet material 56.It should be appreciated that the sheet material 56 shown in Fig. 7 A-C is also formed without the shape into the enhancing composite bed 36 shown in Fig. 6, but the mesh just to illustrating shows sheet material 56.The example strengthening composite bed 36 is the fibre-reinforced thermoplastic of continuous print, and the fibre-reinforced thermoplastic of this continuous print is commercially available.Alternately, such as, a plurality of fiber 54 and the second polymeric material 52 combine with the first polymeric material 38 simultaneously.The various embodiments strengthening composite bed 36 are further described referring to Fig. 7 A-C.As be expanded on further referring to Fig. 8, such as, strengthen composite bed 36 to be prefabricated and be combined with the first polymeric material 38 of backrest 26 subsequently.As substituting of sheet material 56 or supplementing as described sheet material 56, strengthen composite bed 36 and can include band, prepreg etc., and on the premise of without departing substantially from the character of the present invention, strengthening composite bed 36 can be formed by any kind of composite manufacturing method.
The second polymeric material 52 strengthening composite bed 36 can be the material identical or different from the first polymeric material 38 of backrest 26.As an example, the first polymeric material 38 be thermoplastic embodiment in, the second polymeric material 52 strengthening composite bed 36 can be the thermoplastic different from the thermoplastic of backrest 26.It should be appreciated that in this embodiment, the thermoplastic of backrest 26 and the thermoplastic strengthening composite bed 36 can be any kind of thermoplastics.As an example, the second polymeric material 52 of enhancing composite bed 36 is different from the second nylon of the first nylon of backrest 26.
The second polymeric material 52 that instead, can strengthen composite bed 36 can be the material identical with the first polymeric material 38 of backrest 26.As an example of this structure, the second nylon of the first nylon of backrest 26 and enhancing composite bed 36 can be the nylon of same type.It should be appreciated that on the premise of without departing substantially from the character of the present invention, as an alternative, the second polymeric material 52 strengthening composite bed 36 can be thermosets.
With reference to Fig. 4, as set forth above, first polymeric material 38 of backrest 26 is fixed to bracket 34, and described first polymeric material 38 is melt bonded to strengthen the second polymeric material 52 of composite bed 36, in order to backrest 26, bracket 34 and enhancing composite bed 36 are combined together to form single global facility.Similarly, the second enhancing composite bed 36 is melt bonded to the first polymeric material 38 of backrest 26.
First polymeric material 38 of the backrest 26 being attached to each other, enhancing composite bed 36 and the combination of bracket 34 and combination create favourable combination.Specifically, the first polymeric material 38 of backrest 26 self may rupture when bearing load, and strengthen composite bed 36 and self when bearing load may deform and/or rupture.When the first polymeric material 38, enhancing composite bed 36 and the bracket 34 of backrest 26 combine togather, first polymeric material 38 of bracket 34 and backrest 26 supports and strengthens composite bed 36, to prevent from strengthening composite bed 36 deform and/or rupture, i.e. provide torsional rigidity.Enhancing composite bed 36 and bracket 34 enhance the first polymeric material 38 of backrest 26, in order to prevent the first polymeric material 38 of backrest 26 under the effect of load from rupturing.In other words, strengthen composite bed 36 and bracket 34 is rigidity and the impact strength that seat back 24 provides increase.
Strengthen composite bed 36 to combine in many ways with the first polymeric material 38 of backrest 26.In constructing at one, seat back 24 includes that viscous layer (not shown), described viscous layer are arranged between the first polymeric material 38 of backrest 26 and the second polymeric material 52 strengthening composite bed 36.In such structure, select the performance of viscous layer so that described viscous layer contributes to the first polymeric material 38 of backrest 26 and the bond vitrified of both second polymeric materials 52 of enhancing composite bed 36.Such structure adds the range of choice of the material of the first polymeric material 38 of backrest 26 and the second polymeric material 52 of enhancing composite bed 36, because in such structure, first polymeric material 38 and the second polymeric material 52 are without each other can bond vitrified, and the substitute is, described first polymeric material 38 and described second polymeric material 52 can bond vitrified to viscous layer.One example of viscous layer is layer of polyurethane.It is to be understood, however, that on the premise of without departing substantially from the character of the present invention, viscous layer can include any kind of material.
With reference to Fig. 4, backrest 26 and enhancing composite bed 36, all there is abutment surface 58.First polymeric material 38 of the second polymeric material 52 and backrest 26 that strengthen composite bed 36 combines along abutment surface 58, in order to enhancing composite bed 36 and backrest 26 are attached to one another.Backrest 26 extends typically along relatively long continuous print contact surface with strengthening the composite bed 36 combination along abutment surface 58.This continuous print contact surface increases backrest 26 and the bond strength strengthened between composite bed 36.
First polymeric material 38 of backrest 26 and the second polymeric material 52 of enhancing composite bed 36 are along abutment surface 58 bond vitrified each other.Such as, the second polymeric material 52 strengthening composite bed 36 can have the melt temperature being referred to as the second melt temperature at this, and described second melt temperature is lower than the melt temperature being referred to as the first melt temperature at this of the first polymeric material 38 of backrest 26.Such as, the first melt temperature is 560-600 °F, and the second melt temperature is 400-560 °F.It is to be understood, however, that on the premise of without departing substantially from the character of the present invention, the second polymeric material 52 strengthening composite bed 36 can have the melt temperature identical with the first polymeric material 38 of backrest 26.
As bond vitrified replacement or supplement, backrest 26 can with strengthen composite bed 36 mechanically interlock.Such as, strengthen composite bed 36 and can limit hole (not shown) or prodger (not shown), and backrest 26 by hole and/or engages prodger, extends through and engage enhancing composite bed 36.
Bracket 34 is Overmolded by the first polymeric material 38 of backrest 26.In other words, the first polymeric material 38 is formed around the feature of bracket 34, in order to polymeric material 38 is mechanically engaged bracket.Typically, the first polymeric material 38 is mechanically engaged with bracket 34, and does not has any bond vitrified between first polymeric material 38 and the second material 50 of bracket 34 of backrest 26.Typically, the second material 50 of bracket 34 forms the interlocking structure 60 engaged with the first polymeric material 38.For example, referring to Figure 4 and 5, the interlocking structure 60 of bracket 34 can include hole 62 to be mechanically engaged the first polymeric material 38 of backrest 26.As the replacement in hole 62 or supplement, interlocking structure 60 can include other the feature prominent from bracket 34 of such as stud, hook etc..
As set forth above, can be by the first polymeric material 38 being heated to pliable and tough or melted state (such as, by injection moulding, and in such a situation, the first polymeric material 38 can mould around bracket 34) form described backrest 26.In such embodiments, first polymeric material 38 of the backrest 26 being in pliable and tough or molten condition contacts interlocking structure 60, such as, in the first polymeric material 38 ostium 62, so that when, after the first polymeric material 38 solidification, the first polymeric material 38 and bracket 34 mutually mechanically engage.
With reference to Fig. 4, bracket 34 and enhancing composite bed 36, each there is interior surface 64 relative to each other and reverse outer surface 66.Typically, bracket 34 is enhanced composite bed 36 intussusception.With reference to Fig. 2 and 4, first polymeric material 38 covers at least some of of an outer surface in outer surface 66, to form expose attractive in appearance to illustrate surface 68, i.e. by aesthstic industrial standard and be no longer necessary to the surface covered by such as leather, foamed materials etc..Surface 68 industrially can be referred to as " class-A surfaces " in attractive in appearance the illustrating exposed.In the case of needs overcover, backrest 26 can limit the feature for engaging overcover, in order to overcover remains to seat back 24.
As it has been described above, at least one of attractive in appearance typical inaesthetic surface illustrating surface 68, covering bracket 34 and enhancing composite bed 36 exposed of the outer surface covered in outer surface 66.Additionally, as best seen in figure 2, surface 68 can be crossed centre portion 46 and be extended to the second pillar 44 from the first pillar 42 in attractive in appearance the illustrating exposed of the first polymeric material 38.Cross centre portion 46 from the first pillar 42 extend to the second pillar 44 expose attractive in appearance illustrate that surface 68 makes to be no longer necessary on the back of seat back 24 arrange overcover, thus, reduce the material cost relevant with manufacturing seat back 24 and cost of labor.
It should be appreciated that backrest 26, enhancing composite bed 36, bracket 34 and described backrest 26, described enhancing composite bed 36, any combination of described bracket 34 can limit the feature of seat back 24.For example, referring to Fig. 1-3, the first polymeric material 38 of seat back defines the head rest guiding piece 70 leaning on 72 for accepting header.Alternatively or in addition, backrest 26, enhancing composite bed 36 and bracket 34 can be formed: backboard, side bolster, modification adnexa, foam stand, rear back braces, arm supports frame, waist bracket, air bag bracing frame and/or air bag receiving portion, back suspension mounting etc., and their any combination.It is to be further understood that the feature of seat back 24 can limit expose attractive in appearance further and illustrate surface 68.Such as, in the case of backrest 26 is formed by injection-moulding plastic, the feature of seat back 24 can be formed by injection-moulding plastic together with backrest 26.
In an embodiment as shown in Figure 4, at least some of the 74 of the outer surface 66 of bracket 34 do not have the first polymeric material 38, i.e. described at least some of the 74 of the outer surface 66 of bracket 34 are not covered by the first polymeric material 38.Mounting bracket 76 abuts the part 74 exposed of the outer surface 66 of bracket 34.Mounting bracket 76 extends from seat cushion 22 and is connected to bracket 34.Mounting bracket 76 abuts the part 74 of outer surface 66, and does not has the first polymeric material 38 between described mounting bracket 76 and part 74 so that when mounting bracket 76 is connected to bracket 34, promote suitable the taking a seat of described mounting bracket 76.
Such as, mounting bracket 76 can be connected to bracket 34 by securing member 78.As securing member 78 replacement or supplement, mounting bracket 76 can be mechanically engaged with the first polymeric material 38 of backrest 26.In such embodiments, the mechanical engagement between mounting bracket 76 and the first polymeric material 38 can not have bond vitrified between described first polymeric material 38 and described mounting bracket 76.Such as, similar to above with respect to those described by bracket 34, mounting bracket 76 can include hole or further feature parts (not shown), in order to engages the first polymeric material 38 of backrest 26.In such embodiments, the first polymeric material 38 of backrest 26 can be arranged between mounting bracket 76 and bracket 34, to combine mounting bracket 76 and bracket 34.
Mounting bracket 76 can be configured between backrest 26 and seat cushion 22 set up dependence (reclining) and interact, i.e. so that seat back 24 can optionally back rotation and/or described seat back 24 can rotate the most forward relative to seat cushion 22 relative to seat cushion 22.Alternately, mounting bracket 76 can be constructed such that seat back 24 remains fixed in upright position.
As in Fig. 7 A-C best seen from as, typically, each in a plurality of fiber 54 is all further defined as a plurality of continuous fiber, i.e. long fibre, and described long fibre and discontinuous fibre (that is, chopped fiber) are contrasted.It should be appreciated that alternately, a plurality of fiber 54 is discontinuous, i.e. chopped fiber (not shown).Fiber 54 be continuous fiber embodiment in, fiber 54 is elongated, i.e., the most long and thin, and described fiber 54 arranges with being substantially parallel to each other, fiber 54 will to be delivered at the stress strengthened on composite bed 36 from the second polymeric material 52 so that fiber 54 strengthens described second polymeric material 52.In other words, when strengthening composite bed 36 and bearing load, stress is transferred to fiber 54, in order to limit and/or control the deformation of the second polymeric material 52.Although more specifically, load is transferred to strengthen composite bed 36, but still occurring some to deform.
Second polymeric material 52 is embedded in and covers fiber 54.In the case of continuous fiber, such as, every fiber 54 upwardly extends in the side being substantially the same and extends along the length strengthening composite bed 36.In the fiber 54 of enhancing composite bed 36 is the structure of continuous fiber, strengthening composite bed 36 self is flexible around the axis extended along continuous fiber, and deforms when described enhancing composite bed 36 bears load.Backrest 26 supports and strengthens composite bed 36, in order to prevents described enhancing composite bed 36 around axis bending, and prevents from deforming when described enhancing composite bed 36 bears load.Fiber 54 be discontinuous fibre structure in, the second polymeric material 52 deforms around fiber 54, and less stress transfers to fiber 54 from the second polymeric material 52.
Be no matter continuous print, discontinuous or other, the fiber 54 of each enhancement layer extends the most in a same direction.Alternately, the fiber 54 of each sheet material 56 can extend in different directions or can be braiding, i.e. described fiber 54 is interweaved.Strengthen a plurality of fiber 54 preferably glass fibre of composite bed 36.Alternately, each in a plurality of fiber 54 is all carbon fiber；It is to be understood, however, that fiber can be any type known to those skilled in the art of the present technique.
As set forth above, and with reference to Fig. 7 A-C, strengthen composite bed 36 and can include multiple sheet material 56.In such structure, sheet material 56 integrally overlies one another to form single buttress.Strengthen the rigidity of composite bed 36, intensity and impact strength to increase along with the interpolation of each sheet material 56.Each sheet material 56 is relatively thin relative to backrest 26.The thickness of each sheet material 56 can be about 0.1 to 0.5 millimeter.The multiple sheet materials 56 forming single buttress can have the thickness amounting to about 1 to 2 millimeters.It is to be understood, however, that on the premise of without departing substantially from the character of the present invention, strengthen composite bed 36 and can have any thickness.It should also be understood that strengthen composite bed 36 can have the thickness of consistent thickness or change.
Multiple sheet materials 56 can include any combination with the sheet material 56 of continuously or discontinuously fiber 54.Such as, multiple sheet materials 56 may include that the sheet material 56 with continuous fiber；There are multiple sheet materials 56 of braided fiber；Or at least one has the sheet material 56 of continuous fiber and at least one has the combination of sheet material 56 of braided fiber.
Including in the structure of multiple sheet material 56 strengthening composite bed 36, the material of the fiber 54 of each sheet material 56 can be identical with the fiber 54 of each sheet material in other sheet material 56 or not With.Such as, the fiber 54 of each sheet material 56 can be glass fibre, the fiber 54 of each sheet material 56 can be carbon fiber, or multiple sheet material 56 can include the combination of one or more sheet material 56 and one or more sheet material 56 with carbon fiber with glass fibre.
With continued reference to Fig. 7 A-C, in the fiber 54 of each sheet material 56 is the structure of continuous fiber, typically, at least the first sheet material 92 is oriented so that on continuous fiber D in a first direction to extend, and at least the second sheet material 94 is oriented so that continuous fiber angularly extends relative to first direction D.In other words, multiple sheet materials 56 may be disposed so that the fiber 54 of at least one sheet material 56 angularly extends relative to the fiber 54 of other sheet material 56.It should be appreciated that the fiber 54 that sheet material 56 can be oriented so that a sheet material 56 can extend at any angle relative to the fiber 54 of another sheet material 56.Alternately, multiple sheet materials 56 may be disposed so that the continuous fiber of each sheet material 56 is parallel to the fiber 54 of other sheet material 56 and extends.
Several structures of multiple sheet material 56 are shown in Fig. 7 A-C.Specifically, Fig. 7 A shows that multiple sheet material 56 includes that each in six sheet materials 56 and six sheet materials 56 has the exploded view of the structure of continuous fiber.Bottom up from the structure shown in Fig. 7 A, one sheet material 56 has the fiber 54 extended on D in a first direction, ensuing sheet material 56 has relative to first direction D substantially with 90 ° of fibers 54 extended, each of ensuing two sheet materials 56 has the fiber 54 that generally along first direction D extension, ensuing sheet material 56 has relative to first direction D substantially with 90 ° of fibers 54 extended, further, ensuing sheet material 56 has the fiber 54 that D extends along a first direction.
Fig. 7 B shows that multiple sheet material 56 includes that each in six sheet materials 56 and described six sheet materials 56 has the exploded view of another structure being continuous fiber 54.Bottom up from the structure illustrated in figure 7b, each of two sheet materials 56 has the fiber 54 extended on D in a first direction, each in ensuing two sheet materials 56 has relative to first direction D substantially with 90 ° of fibers 54 extended, further, each in ensuing two sheet materials 56 has the fiber 54 extended on D the most in a first direction.
Fig. 7 C shows that multiple sheet material 56 includes that each having in seven sheet materials 56 and described seven sheet materials 56 is the exploded view of another structure of the fiber 54 of continuous fiber.Bottom up from the structure shown in Fig. 7 C, each in three sheet materials 56 has the fiber 54 extended on D in a first direction, ensuing sheet material 56 has relative to first direction D with 90 ° of fibers 54 extended, further, ensuing three sheet materials 56 each has the fiber 54 extended on D in a first direction.
The method that the present invention farther includes to form backrest 26.Mould 40 is used to form backrest 26.With reference to Fig. 9, described method includes enhancing composite bed 36 being placed into the step in mould 40 and adjoining enhancing composite bed 36 bracket 34 is placed into the step in mould 40.In mould 40, strengthen composite bed 36 and bracket 34 can mutually abut or can spaced come.Described method farther includes the first polymeric material 38 of backrest 26 is heated to molten condition and is incorporated in mould 40 by the first polymeric material 38 being in the backrest 26 of molten condition, it is incorporated between enhancing composite bed 36 and bracket 34 and makes the first polymeric material 38 contact with described enhancing composite bed 36 and described bracket 34, the second polymeric material 52 bond vitrified making described first polymeric material 38 and strengthen composite bed 36, and make described first polymeric material 38 be mechanically engaged bracket 34.Typically, the first polymeric material 38 is mechanically engaged bracket 34, and does not has bond vitrified between described first polymeric material 38 and described bracket 34.
Typically, heat the first polymeric material 38 and be further defined as the step that the first polymeric material 38 is incorporated in mould 40 using mould 40 injection moulding.In such structure, include the step that the first polymeric material 38 is incorporated in mould 40 being expelled in mould 40 by first polymeric material 38 under stress.
Mould 40 includes main die cavity 88 and main core rod 90.Main die cavity 88 and main core rod 90 can move the most between the closed position and the open position, and described make position is for by plastic injection to mould 40, and described open position is for removing backrest 26 from mould 40.Mould 40 also includes the first side form core 96 and the second side form core 98.In such structure, preferably landlord's die cavity 88 keeps fixing, and main core rod the 90, first side form core 96 and the second side form core 98 can move between the open and the closed positions.The arrow A that figure 9 illustrates is for representing main core rod the 70, first side form core 72 and the motion of the second side form core 74.
The method of the present invention comprises the following steps: make mould 40 move to open position；Enhancing composite bed 36 and bracket 34 are placed in mould 40；And make mould 40 move to make position.Described method farther includes to be expelled in mould 40 the first polymeric material 38 being used for backrest 26 form backrest 26 and make described backrest 26 and strengthen composite bed 36 and bracket 34 combines the step of (that is, Overmolded) will pass through the first polymeric material 38.In one embodiment, strengthen composite bed 36 and bracket 34 enhancing composite bed 36 spaced apart from each other and described and described bracket 34 is the most spaced apart with mould 40, the first polymeric material 38 for use in backrest 26 can suitably flow between described enhancing composite bed 36 and described bracket 34 and described mould 40 so that formed the most bonding when mould 40 closes.In another embodiment, strengthen composite bed 36 and bracket 34 can mutually abut, and enhancing composite bed 36 and bracket 34 can be wrapped together by the first polymeric material 38.Mould 40 typically comprises feature to guarantee the suitable location strengthening composite bed 36 and bracket 34 in mould 40.Such as, mould 40 can include positioning hole, pattern draft etc..
It should be appreciated that enhancing composite bed 36 and bracket 34 can be placed in mould 40 as single parts, or described enhancing composite bed 36 and described bracket 34 can be attached to each other before being placed in mould 40.Such as, before enhancing composite bed 36 and bracket 34 are put into mould 40, described enhancing composite bed 36 and described bracket 34 can be attached to each other by being mechanically connected or bond connection.Strengthen the example of the mechanical bond between composite bed 36 and bracket 34 include with bolt tighten, compress, riveting etc..Alternately, can be processed by dijection injection (two-shot molding) and introduce the first polymeric material 38, wherein, bracket 34 and strengthened in composite bed 36 are Overmolded by the first injection of the first polymeric material 38, and bracket 34 and strengthen in composite bed 36 another is Overmolded by the second injection of polymeric material 38.
Described method farther includes to promote the interaction between the first polymeric material 38 of backrest 26 and the second polymeric material 52 strengthening composite bed 36 so that backrest 26 and enhancing composite bed 36 combine.The step promoting the interaction between the first polymeric material 38 of backrest 26 and the second polymeric material 52 strengthening composite bed 36 contributes to the first polymeric material 38 and enhancing composite bed 36 is combined into single integral unit.In other words, when the first polymeric material 38 being in molten condition is introduced into and contacts with enhancing composite bed 36, first polymeric material 38 of backrest 26 and the second polymeric material 52 of enhancing composite bed 36 interact, so that after the cooling period, backrest 26 and enhancing composite bed 36 combine togather, that is, it is integrally formed.
As set forth above, promote that the step interacted is further defined as the first polymeric material 38 of bond vitrified backrest 26 and strengthens the second polymeric material 52 of composite bed 36.Specifically, it is at least some of that described method includes that first polymeric material 38 with the backrest 26 being in molten condition of melted the second polymeric material 52 strengthening composite bed 36 contacts, making after the cooling period, bond vitrified strengthens composite bed 36 and the first polymeric material 38 of backrest 26.When the second polymeric material 52 being in first polymeric material 38 of backrest 26 of molten condition and enhancing composite bed 36 interacts and the second polymeric material 52 is in the state of being heated to soften or molten condition simultaneously, there is bond vitrified.First polymeric material 38 of backrest 26 and the second polymeric material 52 strengthening composite bed 36 interact, in order to after the cooling period, and the first polymeric material 38 of backrest 26 and the second polymeric material 52 strengthening composite bed 36 are bonded together.Specifically, heat can transfer to strengthen the second polymeric material 52 of composite bed 36 from the first polymeric material 38 of the backrest 26 being in molten condition.Heat softens or melted second polymeric material 52, and softening or melted polymeric material interact with the first polymeric material 38 being in molten condition.
Backrest 26 the first polymeric material 38 the first melt temperature higher than strengthen composite bed 36 the second polymeric material 52 the second melt temperature structure in, introduce the step of the first polymeric material 38 and include that the first polymeric material 38 of the backrest 26 by being in the first melt temperature is arranged to and strengthens composite bed 36 and contact, make during contacting, reach the second melt temperature, in order to make described first polymeric material 38 and the second polymeric material 52 bond vitrified.When being in first polymeric material 38 of backrest 26 of the first melt temperature and be introduced into and contacting with enhancing composite bed 36, heat transfers to strengthen the second polymeric material 52 of composite bed 36 from the first polymeric material 38 of backrest 26, the temperature strengthening the second polymeric material 52 of composite bed 36 is made to be increased to the first melt temperature, thus at least soften, and typically melted the second polymeric material 52 strengthening composite bed 36.
As heat supplementing from the first polymeric material 38 transfer of backrest 26, can promote to strengthen the second polymeric material 52 melted of composite bed 36 in many ways.Such as, the step of melted second polymeric material 52 is further defined to heat mould 40 so that conductively heating strengthens composite bed 36.Strengthen composite bed 36 and be heated so that the first polymeric material 38 of the backrest 26 having only to be in molten condition provides less heat that the second polymeric material 52 is increased to the second melt temperature.
Described method can be included in the first polymeric material 38 of the backrest 26 by being in molten condition and is arranged to and strengthens before composite bed 36 contacts, and heating strengthens composite bed 36.Such as, described method can be included in before being placed in mould 40 by enhancing composite bed 36, heats described enhancing composite bed 36.Alternately or in addition, while described method can be included in and described enhancing composite bed 36 is placed into mould 40, heating strengthens the step of composite bed 36.
Such as, described method can be included near the contact surface of the first polymeric material 38 and enhancing composite bed 36, makes the step of mould 40 thermal insulation.Specifically, it is further defined in the structure of injection-moulding plastic the first polymeric material 38 is incorporated in mould 40, the process heating mould 40 of injection-moulding plastic, and makes the step of mould 40 thermal insulation be maintained in mould 40 by heat.When the first polymeric material 38 is injected in mould 40, the heat of mould 40 softens the second polymeric material 52 strengthening composite bed 36, in order to promote the bond vitrified between the first polymeric material 38 and the second polymeric material 52 strengthening composite bed 36.
Described method can be included in the first polymeric material 38 and strengthen the step of heating mould 40 near the contact surface of composite bed 36.Such as, mould 40 can include the oil circuit (not shown) of heating, and described oil circuit is conveyed through the oil of heating.Heat is delivered to mould 40 from oil to heat mould 40.When the first polymeric material 38 of backrest 26 is introduced into and contacts with the second polymeric material 52 strengthening composite bed 36, the heat being transferred to mould 40 by oil circuit softens the second polymeric material 52, in order to promote the bond vitrified between the first polymeric material 38 and the second polymeric material 52.
Described method can include blowing to strengthen by the air through heating on composite bed 36 so that heating strengthens the step of composite bed 36.Such as, mould 40 can include airbag (not shown) and when strengthening composite bed 36 and being placed in mould 40, and the air through heating is blown to strengthen on composite bed 36 from airbag.Before the contact surface of the first polymeric material 38 of backrest 26 is incorporated into backrest 26 the first polymeric material 38 and enhancing composite bed 36, at this contact surface, the air through heating directly can be blown and strengthen on composite bed 36.Air through heating softens the second polymeric material 52 strengthening composite bed 36, in order to promote the first polymeric material 38 and the bond vitrified strengthened between composite bed 36 when being introduced by the first polymeric material 38 of backrest 26 and contact with enhancing composite bed 36.
Described method can include enhancing composite bed 36 being carried out Cement Composite Treated by Plasma or flame treatment to alleviate the capillary step strengthening composite bed 36.Before the first polymeric material 38 is incorporated into the contact surface of the first polymeric material 38 and enhancing composite bed 36, at this contact surface, carry out Cement Composite Treated by Plasma or flame treatment (not shown) to strengthening composite bed 36.The Cement Composite Treated by Plasma or the flame treatment that strengthen composite bed 36 reduce surface tension, and promote the first polymeric material 38 and the bond vitrified strengthened between composite bed 36.
Described method can include making enhancing composite bed 36 contact Cement Composite Treated by Plasma insert (plasma treat insert) (not shown) so that heating strengthens the step of composite bed 36.Before the contact surface the first polymeric material 38 being incorporated into the first polymeric material 38 and strengthen composite bed 36, at this contact surface, Cement Composite Treated by Plasma insert contacts with strengthening composite bed 36.Before the first polymeric material 38 is incorporated into this contact surface, remove Cement Composite Treated by Plasma insert from strengthening composite bed 36.Plasma treatment insert softens and strengthens composite bed 36, in order to promote the first polymeric material 38 and the bond vitrified strengthened between composite bed 36 when being introduced by the first polymeric material 38 and contact with enhancing composite bed 36.
Alternately or in addition, promote that the step interacted is further defined as mechanically interlocking backrest 26 and strengthening composite bed 36.Specifically, described step is further defined to the first polymeric material 38 of the backrest 26 by being in molten condition and is introduced through the surface features of the (not shown) such as such as hole, stud, hook, surface profile, to be mechanically engaged backrest 26 after the first polymeric material 38 cooling of backrest 26 and to strengthen composite bed 36.After the cooling period, the first polymeric material 38 mechanically interlocks with strengthening composite bed 36.It should be appreciated that backrest 26 and this mechanical engagement strengthening composite bed 36 can be the replacements of bond vitrified between backrest 26 and the supplementary or backrest 26 strengthening bond vitrified between composite bed 36 and enhancing composite bed 36.The first polymeric material of backrest 26 and strengthen the polymer of composite bed 36 cannot be easily in the case of bond vitrified, such as, the incompatible material of the most different thermoplastics or thermosets etc., incompatible bond vitrified temperature etc., the first polymeric material 38 of backrest 26 can be mechanically engaged to substitute bond vitrified with strengthening composite bed 36.
As bond vitrified and mechanical interlocked replacement or supplement, promote that the step interacted is further defined to before the first polymeric material 38 of the backrest 26 by being in molten condition introduces and contacts with the abutment surface strengthening composite bed 36, (scarify) this abutment surface of swiping.In other words, the abutment surface making enhancing composite bed 36 is roughened, in order to promote to strengthen the melted of composite bed 36 at abutment surface.
Promote that the step interacted is further defined to, before the first composite 38 of the backrest 26 by being in molten condition is arranged to contact with enhancing composite bed 36, be applied to adhesion promotor (not shown) strengthen on composite bed 36.Such as, it is applied to strengthen composite bed 36 by adhesion promotor by sprinkling, brush and/or immersion.Adhesion promotor promotes the bond vitrified between the first polymeric material 38 of backrest 26 and the second polymeric material 52 strengthening composite bed 36.The gamma-aminopropyl-triethoxy-silane (gamma-aminopropyl triethoxysilane) that the example of this adhesion promotor is a commercially available.The acidity two different phenyl methylidene group diisocyanate (methylendiphenylbishexahydroazepincarboxamid) that the example of another this adhesion promotor is a commercially available.
Described method also includes being introduced by the first polymeric material 38 being in molten condition and contacting with the interlocking structure 60 of bracket 34, and cools down the first polymeric material 38, so that the interlocking structure 60 of the first polymeric material 38 and bracket 34 is mechanically engaged.Because the first polymeric material 38 and bracket 34 are fixed to one another and do not have any bond vitrified between described first polymeric material 38 and described bracket 34, the first polymeric material 38 and bracket 34 are combined by the joint between the first polymeric material 38 and interlocking structure 60.
Described method can also be included in and will strengthen in composite bed 36 is placed into mould 40 step that enhancing composite bed 36 is preformed into predetermined shape before.The step of preforming is further defined to hot forming.Alternately, the step of preforming is further defined as compression molding.As set forth above, on the premise of without departing substantially from the character of the present invention, can be formed by any composite manufacturing method and strengthen composite bed 36.In the structure including multiple sheet material 56, each sheet material in multiple sheet materials 56 shaped by the heat of compression or compression molding and be combined into single buttress.Should also be as being understood that, mould 40 can be constructed such that described enhancing composite bed 36 bends or deforms, in order to be maintained in mould 40 by described enhancing composite bed 36 when strengthening composite bed 36 and being placed in mould 40.In such structure, after the first polymeric material 38 combines with enhancing composite bed 36, described enhancing composite bed 36 keeps such bending or deformation.
Preforming tool 80 is typically used to carry out preforming to strengthening composite bed 36.Preforming tool 80 includes: recessed preforming tool halfbody 82, and described recessed preforming tool halfbody 82 has the preforming die cavity 86 corresponding with predetermined shape；The convex preforming tool halfbody 84 corresponding with preforming die cavity 86.Come in the structure of preforming at enhancing composite bed 36 by hot forming, strengthen composite bed 36 to be heated and be placed in preforming die cavity 86, thus, convex preforming tool halfbody 84 exerts a force to strengthen on composite bed 36, in order to make the enhancing composite bed 36 in preforming die cavity 86 for good and all deform.Carrying out in the structure of preforming by compression molding to strengthening composite bed 36, strengthen composite bed 36 to be placed in preforming die cavity 86, and convex preforming tool halfbody 84 exerts a force to strengthen on composite bed 36, in order to make the enhancing composite bed 36 in preforming die cavity 86 for good and all deform.
Described method farther includes to be combined into sheet material 56 step of single buttress.The step combining multiple sheet material 56 includes: positioning the fiber 54 in multiple sheet material 56 is continuous print and at least one sheet extended on D in a first direction；It is continuous print and at least another sheet angularly extended relative to first direction D with the fiber 54 in multiple 56, location.
Describe the present invention in illustrative mode, and it should be appreciated that the term that used be intended to words of description character and without limitation.The present invention can be made multiple adjustment and variation according to above-mentioned teaching, and in addition to specified otherwise, can otherwise implement the present invention.
1. a seat back (24), described seat back includes:
Backrest (26), described backrest is formed by the first polymeric material (38), is used for supporting passenger；
Overall bracket (34), described bracket is fixed to described backrest (26), for being connected to seat cushion (22), and described bracket is formed by the second material (50) different from described first polymeric material (38) of described backrest (26)；
Strengthen composite bed (36), described enhancing composite bed is connected to described backrest (26), and is formed by the second polymeric material (52) and a plurality of fiber (54) being inlaid in described second polymeric material (52)；
Wherein, described bracket (34) is Overmolded by described first polymeric material (38), and wherein, described first polymeric material (38) is melt bonded to described second polymeric material (52) of described enhancing composite bed (36), thus described backrest (26), described bracket (34) and described enhancing composite bed (36) is combined；
Wherein, described bracket (34) limits hole (62), and described first polymeric material (38) is mechanically engaged with described hole (62).
Seat back the most according to claim 1 (24), wherein, described bracket (34) includes that base portion and two supporting legs, described two supporting legs are spaced from each other, and extend from described base portion, to limit U-shape configuration.
Seat back the most according to claim 2 (24), wherein, described hole (62) are defined as along described supporting leg.
Seat back the most according to claim 3 (24), wherein, described bracket (34) is elongated along an axis, and the described hole on described supporting leg is spaced apart along described axis.
Seat back the most according to claim 4 (24), wherein, at least two in described hole (62) is defined as along described base portion, and spaced apart transverse to described axis along described base portion.
Seat back the most according to claim 1 (24), wherein, described first polymeric material (38) of described backrest (26) is mechanically engaged with described bracket (34), and does not has any bond vitrified between described first polymeric material (38) and described second material (50) of described bracket (34) of described backrest (26).
Seat back the most according to claim 1 (24), wherein, described second material (50) of described bracket (34) is further defined as metal, and described bracket (34) limits the interlocking structure (60) engaged with described first polymeric material (38).
8. according to the seat back (24) described in any one in claim 1-7, wherein, described first polymeric material (38) limits the first pillar (42) and second pillar (44) spaced apart with described first pillar (42).
Seat back the most according to claim 8 (24), described seat back farther includes second enhancing composite bed (36) spaced apart with described enhancing composite bed (36), wherein, described second strengthens composite bed (36) extends along described second pillar (44) in the vertical direction, and described second strengthens the composite bed bond vitrified described first polymeric material (38) to described backrest (26).
10. according to the seat back (24) described in any one in claim 1-7, wherein, described first polymeric material (38) of described backrest (26) is formed by the first nylon.
11. seat backs according to claim 10 (24), wherein, described second polymeric material (52) of described enhancing composite bed (36) is formed by the second nylon different from described first nylon.
12. 1 kinds of seat backs (24), described seat back includes:
Wherein, described bracket (34) and described enhancing composite bed (36) each have opposed facing inner surface (64) and back to outer surface (66), and wherein, described first polymeric material (38) covers at least some of of an outer surface in described outer surface (66), in order to what formation was exposed illustrates surface (68).
13. seat backs according to claim 12 (24), wherein, described first polymeric material (38) limits the first pillar (42), second pillar (44) spaced apart with described first pillar (42) and extend to the centre portion (46) of described second pillar (44) from described first pillar (42), described seat back farther includes second enhancing composite bed (36) spaced apart with described enhancing composite bed (36), wherein, described second strengthens composite bed (36) extends along described second pillar (44) in the vertical direction, and described second strengthens the composite bed bond vitrified described first polymeric material (38) to described backrest (26).
14. seat backs according to claim 13 (24), wherein, that exposes described in described first polymeric material (38) illustrates that described centre portion (46) is crossed on surface (68), extends to described second pillar (44) from described first pillar (42).
15. seat backs according to claim 12 (24), wherein, described seat back farther includes mounting bracket (76), described mounting bracket abuts the described outer surface (66) of described bracket (34), so that described bracket (34) is connected to seat cushion (22), and wherein, described back to outer surface (66) not there is the first polymeric material (38).
16. seat backs according to claim 12 (24), wherein, described seat back farther includes mounting bracket (76), described mounting bracket is mechanically engaged with described first polymeric material (38) of described backrest (26), and does not has bond vitrified between first polymeric material (38) and described mounting bracket (76) of described backrest (26).
17. according to the seat back (24) described in any one in claim 12-15, wherein, described first polymeric material (38) of described backrest (26) is mechanically engaged with described bracket (34), and does not has any bond vitrified between described first polymeric material (38) and described second material (50) of described bracket (34) of described backrest (26).
18. according to the seat back (24) described in any one in claim 12-15, wherein, described second material (50) of described bracket (34) is further defined as metal, and described bracket (34) limits the interlocking structure (60) engaged with described first polymeric material (38).
19. according to the seat back (24) described in any one in claim 12-15, and wherein, described first polymeric material (38) of described backrest (26) is formed by the first nylon.
20. seat backs according to claim 19 (24), wherein, described second polymeric material (52) of described enhancing composite bed (36) is formed by the second nylon different from described first nylon.
CN201310357377.8A 2009-03-02 2010-03-02 Including the backrest combined and the seat back strengthening composite bed CN103496334B (en)
US20891509P true 2009-03-02 2009-03-02
US61/208,915 2009-03-02
CN201080016574.8A CN102395297B (en) 2009-03-02 2010-03-02 Including the backrest being combined together and the seat back strengthening composite bed
CN201080016574.8A Division CN102395297B (en) 2009-03-02 2010-03-02 Including the backrest being combined together and the seat back strengthening composite bed
CN103496334A CN103496334A (en) 2014-01-08
CN103496334B true CN103496334B (en) 2016-08-10
ID=42709974
CN201310357377.8A CN103496334B (en) 2009-03-02 2010-03-02 Including the backrest combined and the seat back strengthening composite bed
US (1) US8894154B2 (en)
EP (1) EP2403382B1 (en)
JP (1) JP5362043B2 (en)
KR (1) KR101682543B1 (en)
CN (2) CN103496334B (en)
BR (1) BRPI1006285A2 (en)
WO (1) WO2010101874A1 (en)
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