JP7034117B2 - Vehicle seat assembly with aesthetic trim cover assembly - Google Patents

Description

The present application relates to a vehicle seat assembly with an aesthetic trim cover assembly.

The vehicle seat assembly is often fitted with a leather trim cover assembly. Trim cover assemblies made from leather and other materials are often stitched to give the desired appearance. Stitches can be easily unraveled, and stitch patterns limit designability, reducing the durability of joints and the flexibility of designability. In addition, certain materials, such as leather, are typically shunned in the heat pressing process because they shrink upon exposure to heat, are cured by the adhesive and burned, resulting in damage to the fabric.

According to one or more embodiments, the vehicle seat assembly comprises a cushion and a leather trim cover assembly disposed on the cushion. The leather trim cover assembly comprises a leather upper layer and a base layer fixed to the leather upper layer at a high frequency welding point. The high frequency welding point defines at least one design boundary adjacent to the raised portion of the protruding design portion in the leather trim cover assembly.

According to at least one embodiment, the leather trim cover assembly can have a first thickness at the high frequency welding point and a second thickness at the ridge. It is larger than the first thickness. In one or more embodiments, the adhesive layer can join the leather upper layer and the base layer at the high frequency welding point. Further, in certain embodiments, the leather upper layer may not be adhered to the base layer at the raised portion. In another embodiment, the leather upper layer can be adhered to the base layer at the raised portion. In one or more embodiments, the base layer can be a spacer layer. In another embodiment, the base layer can be a foam layer. According to at least one embodiment, the high frequency welding point can define a plurality of design boundaries, each design boundary adjacent to a corresponding ridge of the protruding design. In one or more embodiments, the high frequency weld point can have a width of 0.05 mm to 50 mm. In at least one embodiment, the high frequency weld point can provide a bond strength of at least 2N / 5 cm. According to at least one embodiment, the high frequency welding point can constitute 1% to 80% of the surface of the leather trim cover assembly.

According to one or more embodiments, the trim assembly of the vehicle seat assembly is secured to the trim panel at at least one design boundary so as to form a trim panel and a trim cover assembly that can be mounted on the cushion. It is provided with a base layer. The at least one design boundary is adjacent to the corresponding ridge of the protruding design.

According to at least one embodiment, a high frequency welding point can be arranged between the base layer and the trim panel so as to fix the trim panel to the base layer, and at the high frequency welding point, an adhesive layer can be arranged. Can join the trim panel and the base layer. According to one or more embodiments, the trim assembly can have a first thickness at the high frequency weld point and a second thickness at the ridge, wherein the second thickness is said. Greater than the first thickness. In certain embodiments, the high frequency weld point can have a width of 0.05 mm to 50 mm. In one or more embodiments, the high frequency weld point can impart a bonding strength of at least 2N / 5 cm to the protruding design portion. According to at least one embodiment, the high frequency welding point can constitute 1% to 80% of the surface of the trim assembly. In certain embodiments, the trim panel can include leather, synthetic leather, vinyl, woven fabrics, synthetic suede, non-woven fabrics or other suitable materials, or combinations thereof.

According to one or more embodiments, a method of making a vehicle seat assembly is to provide a cushion and a trim cover assembly comprising a leather trim layer and a base layer disposed inside the leather trim layer. And fixing the leather trim layer and the base layer at a pre-defined high frequency welding point that defines at least one design boundary adjacent to the raised portion of the protruding design portion in the trim cover assembly. Includes placing the trim cover assembly on the cushion. In certain embodiments, the pre-defined high frequency welding points can constitute 1% -80% of the surface of the trim cover assembly.

FIG. 3 is a front perspective view of an exemplary vehicle seat assembly according to one embodiment of the present disclosure. It is sectional drawing along the line 2-2 of the sheet assembly of this disclosure. It is a perspective view of the component of the vehicle seat assembly which concerns on one Embodiment of this disclosure. It is a schematic diagram of the method which can be used to make the component of the sheet assembly which concerns on one Embodiment of this disclosure. It is a perspective view of the component used for making the vehicle seat assembly which concerns on one Embodiment of this disclosure.

If necessary, detailed embodiments of the present disclosure are disclosed herein. However, it is understood that the disclosed embodiments are merely examples of the present disclosure and that the present disclosure can be implemented in various alternative embodiments. The figure is not always drawn to scale. Some features may be exaggerated or reduced as much as possible to show the details of a particular component. Therefore, the details of the particular structure and function disclosed herein should be regarded as merely representative basis of the teachings for those skilled in the art to make various use of the present disclosure, without limitation.

Also, unless otherwise stated, all quantities in this disclosure should be understood to be modified by the word "about". Usually, it is preferable to carry out within the numerical range described. Also, unless explicitly stated otherwise, the description of a group or classification of materials that is suitable or preferred for a given purpose with respect to the present disclosure is any two of the mixed groups or classifications. It is shown that the above factors are equally suitable or may be preferable.

According to embodiments of the present disclosure, a trim cover assembly for a vehicle seat cushion is provided. In at least one embodiment, the trim cover assembly comprises a trim layer (A surface layer), which is integrally formed by high frequency (RF) welding of the trim layer to the base layer via an adhesive. Has a design department. In at least one embodiment, the contact point between the layers is a design boundary adjacent to a ridge defining a protruding design on the surface of the leather layer A. RF welding (also called dielectric seal or radiofrequency welding) uses high frequency energy to cause agitation of molecules in the thermoplastic material, allowing the thermoplastic material to melt and flow together. A magnetic field is generated between the electrodes that penetrates the components and fuses the material layers at the welding point.

With reference to FIG. 1, one embodiment of the sheet assembly 10 is shown. Although the vehicle seat assembly 10 is shown as a bucket seat assembly in FIG. 1, the principles of the present disclosure are applicable to other types of seat assemblies such as bench seat assemblies, captain seat assemblies and other seat assemblies. Should be understood. It should also be understood that the principles of the present disclosure are applicable to other vehicle interior trim components such as leather being components such as backrests, back support pads, armrests and headrests. Furthermore, it should be understood that the principles of the present disclosure are applicable to all types of vehicle seat assemblies and non-vehicle seat assemblies. The seat assembly 10 can be configured to be used in vehicles such as automobiles such as passenger cars or trucks, or for non-vehicle applications. The seat assembly 10 includes a seat seat portion 12 and a seat back portion 14 that is rotatably arranged on the seat seat portion 12. The seat seat portion 12 can be attached to a surface such as the floor of a vehicle.

The seat seat portion 12 and the seat back portion 14 each include a seat foam pad 18 (FIG. 1) supported by a seat frame (not shown). The seat foam pad 18 is arranged under the trim cover assembly 20. The trim cover assembly 20 provides an outer seat surface. The trim cover assembly 20 is made of at least one suitable material, such as, but not limited to, leather, synthetic leather, vinyl, woven, synthetic suede, non-woven or a combination thereof (woven-woven, leather-leather, woven). -It has a trim cover made of leather, leather-woven cloth, etc.). Hereinafter, the trim cover may be referred to as a leather trim cover or a leather layer, but the material of the trim layer may be any suitable material, and the leather is not limited to the trim assembly described herein. It is understood that it is disclosed as an example. It should be understood that the cushion 18 on the seat back 14 may be different from the cushion 18 on the seat seat 12. Similarly, it should be understood that the trim cover assembly 20 of the seat back 14 may be different from the trim cover assembly 20 of the seat seat 12. The trim cover assembly 20 may be readily available in the heating / cooling seat assembly 10, but may be equally usable with other types of seat assemblies such as temperature controlled seat assemblies. The trim cover assembly 20 can include other conventional members such as a thin foam layer and trim attachment, and can be attached to the frame and / or cushion member in any suitable manner, for example, by attaching the seat component (s). Can be attached to).

In at least one embodiment, the trim cover assembly 20 comprises a plurality of trim cover panels, wherein the trim cover assembly 20 inserts a seat seat 12 or a seat back 14 at the open end. They are fixed together so that they have a single opening that allows them to. More specifically, the trim cover assembly 20 comprises a plurality of outer edge panels 22, the plurality of outer edge panels 22 being sewn together at a seam such as a seam 24 or otherwise secured together at a central opening 26. To form. The central panel portion 28 is similarly sewn or otherwise fixed to the outer edge trim panel 22 at the stitch 30 at the opening 26. In at least one embodiment, all of the panels 22 and 28 comprises at least one outer layer of leather.

At least in the illustrated embodiment, the central trim cover panel 28 has a pattern 32 composed of a plurality of rows of protruding design portions, for example, geometrically shaped design portions such as a honeycomb design portion shown as a raised portion 36. To prepare for. Although the geometric design section is shown as a honeycomb design section, it should be understood that any suitable design section and / or shape section can be used. Also, although a plurality of design units 36 of the same shape and size are shown, it should be understood that the design unit 36 can vary in size, shape or appearance. In other words, the design department need not have a uniform or consistent pattern. Further, the central trim cover panel 28 may have one design portion instead of having a plurality of design portions. Although the ridges 36 are referred to herein as having more than one, it is understood that the same description applies equally to the central trim cover panel 28 having a single design part when describing the ridges 36. Should be.

In at least one embodiment, as shown in FIG. 2, the design portion is formed by a raised portion 36 adjacent to a design boundary portion 42 that forms a groove extending around the design portion. In at least one embodiment, each of the raised portions 36 has a maximum thickness (bulkyness) of 50 mm, and in other embodiments, the thickness is 0.25 mm to 10 mm, or 0. It is 5 mm to 5 mm. In another embodiment, the raised portions 36 have independent thicknesses (bulkness) of 1 mm to 7 mm. In some embodiments, the ridges 36 are 1 mm to 12 mm thick in the finished trim cover assembly 20, and in other embodiments, 4 mm to 10 mm, 6 mm to 8 mm, Or it is 2 mm to 5 mm. In some embodiments, the ridge 36 is 0.1 cm to 25 cm in width and / or length, 0.2 cm to 10 cm in some embodiments, and 0. It is 5 cm to 5 cm.

In one embodiment, the design boundaries 42 independently have a width of up to 100 mm between the ridges (eg, for logo or branding on the sheet assembly 10), and in other embodiments, the width is It is 10 mm to 75 mm. In other embodiments, the design boundaries 42 independently have a width between the ridges of 0.05 mm to 50 mm, 0.1 mm to 25 mm, or 0.2 mm to 10 mm. The ridges 36 can be independently separated by any suitable pattern for any suitable distance. In at least one embodiment, the ridges 36 are separated by 0.02 cm to 5 cm, in other embodiments by 0.05 cm to 1.5 cm, and in yet other embodiments, the offset row pattern is 0. . Separated by 1 cm to 1 cm. It should be understood that in certain embodiments, the ridges 36 have an offset row pattern as shown in FIG. 1, but the ridges 36 can have an alignment pattern. .. In one particular embodiment, the average thickness of the raised portion 36 is up to 10 times thicker than the average thickness of the design boundary portion 42, and in other embodiments, it is 1.5 to 4 times thicker.

At least in certain embodiments, the design boundary 42 is an RF welding fusion point or contact point where the material layer of the trim cover assembly 20 is fused via an RF welding process, by selective fusion under pressure. , The raised portion 36 is brought about. In at least one embodiment, the design boundary 42 comprises an adhesive that fuses the layers. In other embodiments, the adhesive can be pre-laminated over the entire base layer prior to RF welding at the design boundaries. Thus, in certain embodiments, the adhesive may be present at the ridges 36, but the base layer is not adhered at the ridges 36 and is only RF welded to the trim layer at the design boundaries. In another embodiment, if an adhesive is present on the raised portion 36, the base layer can also be adhered to the trim layer on the raised portion 36. In certain embodiments, the ridge 36 with the adhesive is further RF welded to the trim layer.

The design boundary 42 may be continuous or discontinuous and may have any shape suitable for the desired surface design. In at least one embodiment, the design boundary 42 can constitute 1% to 80% of the surface area of the leather layer 54. In another embodiment, the design boundary 42 constitutes 10% to 70% of the surface area, and in yet another embodiment, it constitutes 20% to 60% of the surface area. The minimum contact area to be fused depends on the desired surface design of the trim layer or leather layer 54 and the desired strength of the joint. The trim layer and the leather layer are used interchangeably below to illustrate the non-limiting embodiments of the present disclosure, and therefore the trim layer can include any suitable material and is used on the leather. Not necessarily limited. In some embodiments, the minimum contact area can be 5% to achieve a durable joint, in other embodiments 10% to 95%, and in yet another embodiment. It can be 15% to 90%.

The fusion of layers by RF welding results in a durable joint with a high definition aesthetic design. In certain embodiments, the joint or peel strength of the trim cover assembly may vary depending on the characteristics of the design boundary, such as the contact area defined by the design boundary 42 and the spacing between the design boundaries 42. Can be done. Further, the bonding strength or peeling strength can be determined depending on the characteristics of the adhesive such as the density and spacing of the adhesive, and the processing parameters of RF welding. Bond strength can be measured by various test methods. In one or more embodiments, the bond strength between the trim layer and the base layer is at least 2N / 5 cm as measured by the GM test method GMW3220, and in other embodiments at least 5N / 5 cm. be. In one particular embodiment the bond strength is 5N / 5 cm to 100 N / 5 cm, in other embodiments it is 8N / 5 cm to 75 N / 5 cm, yet another embodiment. In form, it is 10N / 5cm to 50N / 5cm. In some other embodiments, the bond strength is 5N / 5cm to 25N / 5cm, or 10N / 5cm to 20N / 5cm. In another embodiment, the bond strength is at least 3N / 25.4cm as measured by the peel test (Toyota test method TSL2105G-4.11). In one particular embodiment, the peel strength is 3N / 25.4cm-80N / 25.4cm, and in other embodiments, it is 5N / 25.4cm-60N / 25.4cm, yet another embodiment. In morphology, it is 8N / 25.4cm to 40N / 25.4cm. In at least one embodiment, the bond strength can be characterized by withstanding at least 30,000 boarding / alighting cycles as defined by ASTM321. In another embodiment, the joint strength can be characterized by withstanding 30,000 to 70,000 boarding and alighting cycles, and in yet another embodiment characterized by withstanding 40,000 to 60,000 boarding and alighting cycles. Can be done.

In another embodiment, the trim cover assembly 20 is shown, as best shown in FIG. The trim cover assembly 20 is an integrally formed design assembly 62. The design assembly 62 is suitably secured to the cushion via the outer edge trim panel 22. The design assembly 62 can include a base layer 60 and a trim layer 54. The base layer 60 can be made of any suitable material, eg, foam, plastic, or spacer material, to name a few. Any suitable foam can be polyurethane foam, reticulated foam, or memory foam. Any suitable spacer material, such as, but not limited to, Mueller Textil type, Guilford Mills, polyester knit, artificial suede, polyester spacer material, or other suitable material can be used. In some embodiments, the spacer layer can have a two-layer structure of scrim or mesh with filaments extending in between. In certain embodiments, the spacer woven fabric can be one layer or multiple layers formed of polyester fleece, reticulated foam, woven fabric, or other suitable material. In one or more embodiments, the adhesive can be pre-laminated on the base layer 60. Although not shown, any of the layers can include scrims, eg scrims with pre-laminated foam. In other embodiments, one of the layers can be a scrim layer that supports the trim cover assembly. Although only one base layer 60 is shown, additional base layers can be stacked and each layer is made of a different material, eg, but not limited to, plus-pad material (eg, foam, space, 3D). It is understood that it can be a knit material). For example, different types of base layers can be used with or without adhesive to improve the bulkiness and definition of the raised protrusion design. In some embodiments, the base layer can contain an adhesive between the layers so that the layers are joined during RF welding. In other embodiments, the adhesive can be pre-laminated on any of the base layers prior to RF welding. For example, the adhesive can be pre-laminated on all layers. According to at least one embodiment, the base layer can be a composite spacer layer, the composite spacer layer in some examples comprising a scrim woven with an adhesive thread, or in some other examples. Includes a layer supported on a separate scrim layer. In embodiments that include a composite spacer layer, the base layer does not require a step of applying adhesive prior to prior laminating or RF welding.

In addition, the spacer woven fabric can be formed from any material with relatively high breathability, allowing air to flow in all directions, thus providing breathability for heating / cooling applications. offer. In certain embodiments, the breathability of the spacer layer can be at least 50 cubic feet per minute (cfm) when using ASTM D737 for breathability of the woven fabric. In some embodiments, the air permeability is 50 cfm to 100 cfm, and in other embodiments, it is 60 cfm to 90 cfm. The base layer 60 can have any suitable thickness, but in at least one embodiment the thickness is up to 50 mm. In some embodiments, the base layer 60 is 1 mm to 15 mm thick, in other embodiments 1.5 mm to 12 mm, and in yet other embodiments 2 mm to 10 mm. In certain other embodiments, the base layer 60 is 5 mm to 20 mm thick and in other embodiments 6 mm to 15 mm. In certain other embodiments, the base layer 60 comprises 20 kg / m ³ to 50 kg / m ³ polyester foam.

As shown in the illustrated embodiment of FIG. 2, a layer or fixing mechanism of glue or other suitable adhesive 56 is placed between the leather 54 and the base layer 60 to form the design assembly. To. In at least one embodiment, the glue 56 is a web adhesive that, when applied with RF welding, dissolves and adheres the base layer 60 to the leather trim cover 54. In another embodiment, the adhesive 56 is pre-laminated on the base layer 60 prior to RF welding. In one particular embodiment, the glue 56 is a polyamide spunfab web adhesive, the weight of which is 0.1 oz / yd ² to 5.0 oz / yd ² , and in other embodiments 0.5 oz /. It is yd ² to 4.0 oz / yd ² , and in some embodiments, the weight is 0.9 oz / yd ² .

Referring to FIG. 3, the trim cover assembly 20 of FIG. 2 is shown in a partial perspective view. In one embodiment, molding of the trim cover assembly 20 can be performed on a radio frequency (RF) mold. The leather layer 54 of the trim cover assembly 20 is RF welded so that the raised portion 36 forms the design portion of the trim cover assembly 20. In at least one embodiment, the design boundary 42 is a high frequency welding point (or contact point or fusion point) for attaching the leather layer 54 to the base layer (not shown). In some embodiments, both the design boundary portion 42 and the raised portion 36 are welding points for attaching the leather layer 54 to the base layer. The welding point joins the layers with design flexibility in forming a decorative surface on the leather that is more durable than traditional quilting methods. Similar to the above, the joint strength or peeling requirements of the trim cover assembly can vary based on the position and pattern of the design boundary 42 and / or the contact area defined by the design boundary 42. Further, the bond strength can be determined depending on the properties of the adhesive such as the amount, spacing, or density of the adhesive, as well as the processing parameters of RF welding. In certain embodiments, the welding point (or design boundary 42) is 1% to 95% of the surface area of the leather layer 54, and in other embodiments 5% to 90% of the surface area of the leather layer 54. In some embodiments, it is 10% to 80%, and in yet another embodiment, it is 15% to 75%. Therefore, in some embodiments, the leather layer 54 and the base layer may not be adhered together by RF welding at the raised portion 36, and thus may not form a welding point. The adhesive may be present on the raised portion 36, i.e., if the base layer is pre-laminated on the raised portion 36, the leather layer 54 and the base layer may not be RF welded on the raised portion 36. Therefore, due to the welding point, the design boundary portion 42 may be harder than the raised portion 36 due to the adhesive. Differences in hardness can vary based on treatment parameters, adhesive strength, base layer selected, layer thickness, or a combination thereof.

As shown in the embodiment of FIG. 3, the leather layer 54, the base layer, or both can include the holes 76. However, it should be understood that the holes 76 can be optionally provided, such as when used with a sheet that is not temperature controlled. Further, it should be understood that the holes 76 may be optionally provided in some or all of the ridges 36 and / or the design boundaries 42 to provide the desired air permeability to the design assembly.

In one embodiment, the trim cover assembly 20 can be made using an RF welding process. When using the RF mold assembly, a magnetic field is generated to melt the adhesive. Referring to FIG. 4, a method of making the trim cover assembly 20 is schematically shown according to one embodiment. A suitable mold assembly 64, for example the illustrated mold assembly 64 with an upper mold half portion 64a and a lower mold half portion 64b, is provided. Also, a suitable patterning tool 70 is provided on the mold assembly 64. The pattern processing tool 70 has a shape portion corresponding to the design portion, and a raised portion is formed according to the shape portion in the pattern processing tool 70. At least in the illustrated embodiment, the components of the trim cover assembly 20 include a leather layer 54 (or A surface material), a base layer 60, and an adhesive 56 between the leather layer 54 and the base layer 60. In certain embodiments, the adhesive can be in one layer and in other embodiments, it can be placed based on the location of the design boundaries of the trim cover assembly. The base layer 60 can be foam, plastic, spacer material, or other suitable material. The adhesive layer 56 can be a glue layer or a web adhesive. The adhesive can be present in the shape (forming the ridges) within the patterning tool, but in some embodiments the layers are fused only at the design boundaries. In other embodiments, the layers are further bonded at the ridges.

The mold assembly 64 includes a cushioning layer 72, which is shown for illustration purposes, and the trim cover assembly 20 can be molded without the cushioning layer 72. The cushioning layer 72 can be a non-adhesive layer, such as, but not limited to, a silicone layer, a Teflon® layer, a Mylar layer, a rubber layer, or any suitable non-adhesive layer. The density or thickness of the cushioning layer can vary based on the molding parameters used to prevent the trim cover assembly 20 from sticking to the upper press plate 64a. In addition, insulating the material and patterning tool helps prevent arcing in the mold during welding.

As best understood with reference to FIG. 4, the trim layer 54, the adhesive 56, the base layer 60 and the patterning tool 70 are placed in the RF mold 64 (with a buffer layer 72 as needed). By being compressed in a magnetic field for a suitable period of time under appropriate conditions, for example at 0.1 amp to 15 amperes, at a pressure of 2000 KG to 50,000 KG, for 0.1 to 300 seconds. The raised portion 36 and the design boundary portion 42 in the trim cover assembly 20 are formed, and the base layer 60 is joined to the trim cover 54. In one embodiment, a magnetic field is applied at 0.6 amps to 10 amps at a pressure of 2000 KG to 50,000 KG for 2 seconds to 300 seconds. The time and conditions used for the RF mold 64 can vary depending on the material and thickness parameters selected and the desired bonding strength / durability of the finished trim cover. The trim layer 54 is placed on the patterning tool 70 and pressed against the design section of the patterning tool 70, thereby forming a design section on the trim layer 54 with glue 56 or any other suitable adhesive. Is adhered to the trim cover assembly 20 to provide the desired shape and depth of the final design portion of the central panel portion 28. Next, the central panel portion 28 is fixed to the panel 22. Alternatively, in certain embodiments, the pattern can be formed over the entire trim cover assembly, including the panel 22, and in some embodiments, the pattern is formed on the panel 22. Different patterns can be formed on the central panel portion 28. In yet another embodiment, only the central panel portion 28, or alternative, only the panel 22 has a pattern. It is understood that the layer 54 can have any suitable shape and / or size, but in at least one embodiment the layer 54 is 0.5 mm to 5 mm thick and in other embodiments. In, it is 0.6 mm to 3 mm, and in still other embodiments, it is 0.7 mm to 2 mm.

With reference to FIG. 5, an exemplary patterning tool 70 is schematically shown. The patterning tool 70 can be made of suitable materials such as aluminum, brass and other metals. As best shown in FIG. 6, the patterning tool 70 includes an opening 52 formed within the aluminum wall member 58. The opening 52 has substantially the same shape as the ridge and is slightly larger than the shape and size of the ridge, eg, 2% to 10%, to accommodate the accumulated material thickness. The wall member 58 is clamped across a layer of trim cover assembly to form an RF weld fusion point corresponding to a design boundary adjacent to a raised portion of the protruding design portion. The patterning tool 70 can have any suitable thickness and, in at least one embodiment, has a thickness of 10 mm to 100 mm. In some embodiments, the patterning tool 70 has a thickness of 12 mm to 30 mm. The patterning tool 70 can be fixed or adjacent to one of the mold halves in the RF welding die. Alternatively, the patterning tool 70 can be integrated with one of the mold halves of the RF welding die. In at least one embodiment, the layer 54 is loosely laid on the design assembly 62.

According to embodiments of the present disclosure, a trim cover assembly for a vehicle seat cushion is provided. In at least one embodiment, the trim cover assembly comprises a trim layer (A surface layer), which is a trim layer by applying a magnetic field to the adhesive between the trim layer and the base layer. Has a design portion integrally formed in the trim layer by high frequency (RF) welding to the base layer. The contact points between the layers form a design boundary adjacent to the ridge, based on the patterning tool in the mold, thereby forming a protruding design on the surface of the leather layer A.

The details, designs, modifications, embodiments and embodiments illustrated and described herein are applicable to automobile seats, other vehicle seats and non-standard seats. Although exemplary embodiments have been described above, these embodiments are not intended to represent all possible embodiments of the present disclosure. For example, a protrusion formed into a leather layer can include a pattern of threads sewn along the contour of the protrusion. Rather, it is understood that the language used herein is not limited, but descriptive, and various changes may be made without departing from the spirit and scope of this disclosure. In addition, the features of the various embodiments can be combined to form further embodiments of the present disclosure. It should be understood that the present disclosure envisions a seat system or chest support seat system that includes any combination of features shown in the drawings and / or described herein.

This application is an application claiming the benefit of U.S. Patent Application No. 16 / 119,074 filed on August 31, 2018, the disclosure of which is hereby incorporated by reference in its entirety. Form a part of.

Claims (19)

With cushions
A vehicle seat assembly comprising a leather trim cover assembly disposed on the cushion.
The leather trim cover assembly comprises an upper layer of leather and a base layer secured to the upper layer of leather at a high frequency welding point.
The leather trim cover assembly comprises a plurality of spaced, elastic, pre- defined geometrically shaped ridges coupled to the leather top layer.
The elastic, pre-defined geometrically shaped ridges are defined by a relatively flat top surface.
The high frequency welding point defines a plurality of design boundaries in the leather trim cover assembly, where each design boundary is adjacent to a corresponding geometrically shaped ridge in the vehicle seat assembly. The leather trim cover assembly has a first thickness at the high frequency welding point and a second thickness at the ridge, wherein the second thickness is greater than the first thickness, claim. The vehicle seat assembly according to 1. The vehicle seat assembly according to claim 1, wherein the adhesive layer joins the leather upper layer and the base layer at the high frequency welding point. The vehicle seat assembly according to claim 1, wherein the leather upper layer is not adhered to the base layer at the raised portion. The vehicle seat assembly according to claim 1, wherein the leather upper layer is adhered to the base layer at the raised portion. The vehicle seat assembly according to claim 1, wherein the base layer is a spacer layer. The vehicle seat assembly according to claim 1, wherein the base layer is a foam layer. The vehicle seat assembly according to claim 1, wherein the high frequency welding point has a width of 0.05 mm to 50 mm. The vehicle seat assembly according to claim 1, wherein the high frequency welding point provides a bonding strength of at least 2N / 5 cm. The vehicle seat assembly according to claim 1, wherein the high frequency welding point constitutes 1% to 80% of the surface of the leather trim cover assembly. With the trim panel,
It comprises a base layer that is secured to the trim panel at at least one design boundary so as to form a trim cover assembly that can be mounted on the cushion.
The trim cover assembly comprises multiple raised, elastic, pre-defined geometrically shaped ridges that are spaced apart.
The elastic, pre-defined geometrically shaped ridges are defined by a relatively flat top surface.
The at least one design boundary is a trim assembly of the vehicle seat assembly adjacent to the corresponding geometrically shaped ridge of the protruding design. A high-frequency welding point is arranged between the base layer and the trim panel so as to fix the trim panel to the base layer, and at the high-frequency welding point, an adhesive layer joins the trim panel and the base layer. The trim assembly according to claim 11. 12. The trim assembly has a first thickness at the high frequency welding point and a second thickness at the ridge, wherein the second thickness is greater than the first thickness, claim 12. The trim assembly described. 12. The trim assembly according to claim 12, wherein the high frequency welding point has a width of 0.05 mm to 50 mm. 12. The trim assembly according to claim 12, wherein the high frequency welding point imparts a bonding strength of at least 2N / 5 cm to the protruding design portion. 12. The trim assembly according to claim 12, wherein the high frequency welding point constitutes 1% to 80% of the surface of the trim assembly. 11. The trim assembly according to claim 11, wherein the trim panel comprises leather, synthetic leather, vinyl, woven fabric, synthetic suede, non-woven fabric or a combination thereof. To provide a cushion and
Provided with a trim cover assembly comprising a leather trim layer and a base layer located inside the leather trim layer.
The leather trim layer and the base layer are relatively raised, elastic, pre- defined geometrically shaped bumps that are spaced apart from each other in the trim cover assembly. Fixing at a pre-defined high frequency welding point that defines at least one design boundary adjacent to the elastic pre-defined geometrical ridge defined by a flat top surface. ,
Placing the trim cover assembly on the cushion and
How to make a vehicle seat assembly, including. 18. The method of claim 18, wherein the pre-defined high frequency welding points make up 1% to 80% of the surface of the trim cover assembly.

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