CN219634703U - Durable soft composite leather surface layer structure without bulge of automobile seat - Google Patents
Durable soft composite leather surface layer structure without bulge of automobile seat Download PDFInfo
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- CN219634703U CN219634703U CN202320389372.2U CN202320389372U CN219634703U CN 219634703 U CN219634703 U CN 219634703U CN 202320389372 U CN202320389372 U CN 202320389372U CN 219634703 U CN219634703 U CN 219634703U
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- layer
- leather
- automobile seat
- leather surface
- elastic layer
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- 239000010985 leather Substances 0.000 title claims abstract description 66
- 239000002344 surface layer Substances 0.000 title claims abstract description 43
- 239000002131 composite material Substances 0.000 title claims abstract description 16
- 239000010410 layer Substances 0.000 claims abstract description 116
- 239000004744 fabric Substances 0.000 claims abstract description 44
- 239000004831 Hot glue Substances 0.000 claims abstract description 19
- 238000005187 foaming Methods 0.000 claims abstract description 16
- 239000002245 particle Substances 0.000 claims abstract description 13
- 238000009958 sewing Methods 0.000 claims abstract description 12
- 230000008961 swelling Effects 0.000 claims abstract description 11
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 9
- 238000005485 electric heating Methods 0.000 claims abstract description 6
- 238000000576 coating method Methods 0.000 claims description 11
- 239000011248 coating agent Substances 0.000 claims description 10
- 239000011148 porous material Substances 0.000 claims description 4
- 238000010276 construction Methods 0.000 claims 1
- 238000013461 design Methods 0.000 abstract description 3
- 230000007547 defect Effects 0.000 abstract 1
- 239000006260 foam Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 229920000058 polyacrylate Polymers 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 229920001410 Microfiber Polymers 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003658 microfiber Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
- Y02P70/62—Manufacturing or production processes characterised by the final manufactured product related technologies for production or treatment of textile or flexible materials or products thereof, including footwear
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- Laminated Bodies (AREA)
Abstract
The utility model discloses a durable, non-swelling and soft composite leather surface covering layer structure of an automobile seat, and relates to the technical field of automobile seat design. Comprises a leather surface layer, a reinforced fabric bottom layer, a high-elastic layer and a sponge foaming supporting layer which are sequentially arranged from top to bottom; the upper end of the bottom layer of the reinforced fabric is adhered to the surface layer by a hot melt adhesive layer; the high-elastic layer is made of 3D fabric or a belt Kong Haimian, and the surface of the high-elastic layer is of a micropore structure; a plurality of hard particles are arranged below the reinforced fabric bottom layer, and are embedded into the micropore structure to connect the high elastic layer and the reinforced fabric bottom layer; the sponge foaming supporting layer is internally provided with an electric heating layer at the upper end, and the surface layer, the reinforcing fabric bottom layer and the high elastic layer are sewn and fixed through sewing threads. The utility model overcomes the defects of the prior art, can effectively ensure good touch feeling of the surface layer of the automobile seat, further prevent the bulge of the surface layer and improve the quality of the automobile seat.
Description
Technical Field
The utility model relates to the technical field of automobile seat design, in particular to a durable, non-swelling and soft composite leather surface layer structure of an automobile seat.
Background
With the development of the domestic automobile industry, particularly the addition of new potential of electric automobiles, automobile interiors are increasingly upsized and functionalized, and high-grade interior materials which are originally unique to foreign imported high-grade cars are gradually and rapidly applied to domestic brands. It can be said that the high-grade interior trim is popular, and is one of the mature domestic automobile industry or the powerful competitive mark of domestic automobiles.
Seats are important safety and comfort components in the interior of automobiles, and are also generally the most valuable components of a single piece in automotive upholstery. The passenger car seat mainly comprises a face cover, foam sponge, a framework, a mechanism part, a driving part, an electric and pneumatic system and the like. By using the high-grade fabric, the comfort functions of heating, ventilation, massage, multidirectional adjustment and the like are added, so that the seat value is improved.
The facing refers to the upper layer of the foaming sponge body on the seat framework and the combination layer thereof, is a seat surface layer which is visible and tactile to consumers, and has softness, texture, perceived comfort and functionality, which are important manifestations of the automobile interior trim grade. In general, high-grade automobiles mostly use leather or microfiber leather as a fabric layer. The functions of heating, ventilation, massage and various direction regulation of the seat in the prior high-grade automobile are more and more, so that the punched leather fabric is more common on the high-grade seat, and the punching damages the cohesion among part of fibers, so that the strength and the shape and size restoring capability of the leather fabric are inevitably reduced.
The conventional structure between the leather/leather facing and the foam sponge layer is now as shown in fig. 2: and the leather surface layer and the textile reinforcing layer are perforated after being bonded through the hot melt adhesive coating, and then are bonded with the high-elastic 3D supporting fabric or the perforated sponge layer through the hot melt adhesive film to form the surface sleeve layer. These processing cuts are typically done in a leather mill. The sponge foaming layer with the air holes is provided with an electric heating part, a rear framework, a fan, a motion adjusting control part and other seat bodies. The leather seat with the structure has very good mechanical property and durability, but the layers are bonded together, so that the hand feeling of the leather is seriously deteriorated (the touch sense is not flexible and elastic like single-layer leather any more), the face cover becomes rigid and stiff, and the high-grade feel and grade of the leather are reduced.
To improve this problem of leather covers, some vehicle models have chosen the simplified structure of fig. 3: the perforated leather/leather surface layer and the 3D fabric layer or the perforated sponge layer are sewn together through a wide-distance sewing thread to form a surface sleeve structure. The structure is seemingly perfect to solve the problem of worsening the touch feeling of the leather, but after the leather is loaded, consumers find that the seat surface layer leather has obvious swelling and wrinkling phenomenon after being stressed by sitting and pressing for numerous times, and the reason is that after the leather fabric is stressed by sitting and pressing for numerous times, the total accumulated residual elongation deformation is inconsistent with the subsequent 3D fabric (or the porous sponge layer), so that the soft leather/leather layer with redundant size and the lower layer structure are in void and bubble swelling.
In order to improve the bulge problem, a traditional structure is combined, and a vehicle type is improved by adopting the structure shown in fig. 4, namely, after the leather/leather surface layer and the reinforced fabric substrate layer are bonded and reinforced by the dot-shaped hot melt adhesive layer, the reinforced leather surface layer combination is sewn with the 3D fabric layer or the porous sponge layer by a sewing thread, and then the leather/leather surface layer combination is assembled with the sponge foaming layer 6. The structure improves the touch feeling of the leather surface layer to a certain extent, but because the base fabric is mainly used for reinforcing leather, the leather is stiffer after being bonded, so the touch feeling improvement is limited relative to the leather fabric, and meanwhile, even if the stiff inelastic woven lining is used for helping the leather to bear force, the leather composite body can be quickly grown out due to the fact that the service life is more than ten years and fatigue is repeated for a plurality of times, and the excessive plastic deformation size is free, so that only the bulge is formed. Therefore, even if the improved structure of fig. 4 is adopted, the anti-bulge effect is limited, the hand feeling improvement is limited, and other structures and methods are required to be sought.
Disclosure of Invention
The utility model aims to solve the problem that the automobile seat surface layer is easy to bulge after long-term use in the prior art, and provides a durable soft composite leather surface layer structure without bulge of an automobile seat.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the durable, non-swelling and soft composite leather surface layer structure of the automobile seat is characterized in that the surface layer is integrally sleeved outside a sponge foaming supporting layer (7) of the automobile seat, and the leather surface layer is sequentially provided with a leather surface layer (1), a reinforced fabric bottom layer (3) and a high-elastic layer (5) from top to bottom; the upper end of the reinforcing fabric bottom layer (3) is adhered to the leather surface layer (1) by adopting a hot melt adhesive layer (2); the high-elastic layer (5) is made of a 3D fabric or a belt Kong Haimian, the surface of the high-elastic layer is of a microporous structure, a plurality of hard particles (4) are arranged below the reinforced fabric bottom layer (3), and the hard particles (4) are embedded into the microporous structure to connect the high-elastic layer (5) and the reinforced fabric bottom layer (3); the high-elastic layer (5) is arranged outside the sponge foaming supporting layer (7) and is attached to the sponge foaming supporting layer (7), and the leather surface layer (1), the reinforced fabric bottom layer (3) and the high-elastic layer (5) are sewn and fixed through sewing threads (8).
Preferably, the hot melt adhesive layer (2) is of a dot-shaped hot melt adhesive coating structure.
Preferably, the pore diameter of the micropore structure on the surface of the high elastic layer (5) ranges from 0.25 mm to 0.4mm, and the diameter of the hard particle (4) ranges from 0.4mm to 0.54mm.
Preferably, the hard particles (4) are arranged on the reinforcing fabric bottom layer (3) at a density of 7-40 dots/cm 2 。
Preferably, the sewing thread (8) is used for performing wide-distance sewing with the strong fabric bottom layer (3) and the high elastic layer (5) along the periphery of the leather surface layer (1).
Preferably, an electric heating layer (6) is arranged at the contact position of the upper end of the sponge foaming supporting layer (7) and the high-elastic layer (5).
Compared with the prior art, the utility model provides the durable non-bulge soft composite leather surface covering layer structure of the automobile seat, which has the following beneficial effects:
through the arrangement of the reinforced fabric bottom layer, the service life of the surface layer can be effectively prolonged, meanwhile, under the action of repeated sitting pressure or suction force of a fan, the hard mass points on the back surface of the reinforced fabric bottom layer are extruded and inlaid with micropores on the surface of the high elastic layer to generate mechanical cohesion like a hasp, the soft adhesion is slightly realized, even if the surface layer leather assembly generates fatigue plastic deformation and dimensional change, the surface layer is clung to the high elastic layer, no bubbling bulge exists, and the subsequent stress is more transferred to the high elastic layer and the sponge foaming supporting layer, so that the service life of the seat is prolonged;
the device has the advantages that the design is reasonable, the structure is simple, the good touch feeling of the surface layer of the automobile seat can be effectively ensured, the bulge of the surface layer is further prevented, and the quality of the automobile seat is improved.
Drawings
FIG. 1 is a sectional view showing the structure of a car seat fabric layer according to embodiment 1 of the present utility model;
FIG. 2 is a cross-sectional view of a first conventional automotive seat facing layer structure;
FIG. 3 is a cross-sectional view of a second conventional automotive seat facing layer structure;
fig. 4 is a cross-sectional view of a third conventional car seat cover layer structure.
In the figure: 1. a leather facing; 2. a hot melt adhesive layer; 3. reinforcing the bottom layer of fabric; 4. hard particles; 5. a high-elastic layer; 6. an electric heating layer; 7. a sponge foaming supporting layer; 8. and (5) sewing threads.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Examples:
referring to FIG. 1, a conventional double-point primer polyacrylate primer with a solid content of 22-28% is selected as one side of a reinforcing fabric bottom layer 3, then a cp19 circular screen with a pore diameter of 0.45mm and a wall thickness of 0.17-0.2mm is used for coating thermosetting polyacrylate hard particles by a paste point coating process, after the coating, the hard particles 4 formed by heating, drying, solidifying and cooling are used, the dot diameter is 0.35-0.45mm, and the square gram weight of the coating is 3-4g/m 2 Then turning over the second surface, coating dot-shaped hot melt adhesive on the second surface by a double-dot coater, coating weft yarn surface by double dots of the hot melt adhesive, coating the weft yarn surface by a cylinder cp40, coating the weft yarn surface by a base paste component polyacrylate emulsion with the brand 760, and powdering Co-PA (containing at least 50% of low temperature C)o-PA powder, the balance of medium temperature copolyamide hot melt adhesive powder), and then the powder is blown and sucked into a drying room to be heated and solidified to obtain a hot melt adhesive layer 2 formed by a plurality of point hot melt adhesives, and the hot melt adhesive layer is cooled and rolled.
The leather surface layer 1 is bonded with the hot melt adhesive layer 2 of the reinforced fabric bottom layer 3 and then hot-pressed, so that the hot melt adhesive layer 2 bonds the leather surface layer 1 with the reinforced fabric bottom layer 3, one surface of a hard particle 4 of the reinforced fabric bottom layer 3 is bonded with a high-elastic layer 5 processed by a 3D fabric/porous sponge with a micropore structure on the surface, the pore diameter of the micropore structure is 0.25-0.4mm, after bonding, the hard particle 4 is pressed or sucked to be embedded into the micropore structure to generate mechanical cohesive force similar to a hasp, and the leather surface layer 1 is slightly and flexibly adhered together, even if the leather surface layer 1 generates fatigue plastic deformation and dimensional change, the leather surface layer 1 is also tightly adhered to the high-elastic layer 5 and does not foam and bulge; meanwhile, sewing threads 8 are adopted to carry out wide-distance sewing on the surface layer 1, the reinforced fabric bottom layer 3 and the high elastic layer 5 along the periphery of the leather surface layer 1, so as to obtain a durable soft composite leather surface sleeve layer structure without swelling, and the durable soft composite leather surface sleeve layer structure is sleeved on the sponge foaming supporting layer 7 with the electric heating layer 6.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (6)
1. Durable soft composite leather surface layer structure of not bulging of car seat, the outside of car seat sponge foaming supporting layer (7) is located to the whole cover of surface layer, its characterized in that: the leather surface sleeve layer is sequentially provided with a leather surface layer (1), a reinforced fabric bottom layer (3) and a high-elastic layer (5) from top to bottom;
the upper end of the reinforcing fabric bottom layer (3) is adhered to the leather surface layer (1) by adopting a hot melt adhesive layer (2);
the high-elastic layer (5) is made of a 3D fabric or a belt Kong Haimian, the surface of the high-elastic layer is of a microporous structure, a plurality of hard particles (4) are arranged below the reinforced fabric bottom layer (3), and the hard particles (4) are embedded into the microporous structure to connect the high-elastic layer (5) and the reinforced fabric bottom layer (3);
the high-elastic layer (5) is arranged outside the sponge foaming supporting layer (7) and is attached to the sponge foaming supporting layer (7), and the leather surface layer (1), the reinforced fabric bottom layer (3) and the high-elastic layer (5) are sewn and fixed through sewing threads (8).
2. The durable non-swelling soft composite leather facing layer structure of the automobile seat according to claim 1, wherein the hot melt adhesive layer (2) is a dot-shaped hot melt adhesive coating structure.
3. The durable non-swelling soft composite leather facing layer structure of the automobile seat according to claim 1, wherein the pore diameter of the micropore structure on the surface of the high elastic layer (5) ranges from 0.25 mm to 0.4mm, and the diameter of the hard particles (4) ranges from 0.4mm to 0.54mm.
4. The durable, non-swelling soft composite leather facing construction for car seats according to claim 1, characterized in that the density of the hard spots (4) arranged on the reinforcing fabric base layer (3) is 7-40 spots/cm 2 。
5. The durable non-swelling soft composite leather surface covering structure of the automobile seat according to claim 1, wherein the sewing threads (8) are used for performing wide-distance sewing with the strong fabric bottom layer (3) and the high-elastic layer (5) along the periphery of the leather surface layer (1).
6. The durable, non-swelling and soft composite leather surface covering layer structure of the automobile seat according to claim 1, wherein an electric heating layer (6) is arranged at the contact position of the upper end of the sponge foaming supporting layer (7) and the high-elastic layer (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320389372.2U CN219634703U (en) | 2023-02-28 | 2023-02-28 | Durable soft composite leather surface layer structure without bulge of automobile seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320389372.2U CN219634703U (en) | 2023-02-28 | 2023-02-28 | Durable soft composite leather surface layer structure without bulge of automobile seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219634703U true CN219634703U (en) | 2023-09-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320389372.2U Active CN219634703U (en) | 2023-02-28 | 2023-02-28 | Durable soft composite leather surface layer structure without bulge of automobile seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219634703U (en) |
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2023
- 2023-02-28 CN CN202320389372.2U patent/CN219634703U/en active Active
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