CN116424181A - Heated trim mask, car seat equipped with same, and manufacturing method thereof - Google Patents

Abstract

The present application relates to a heated decorative face mask (100), in particular for a heatable interior trim of a motor vehicle, comprising: a skin layer (101); a sponge layer (102); and a heating layer (103) adhered and fixed between the epidermis layer (101) and the sponge layer (102). The application also relates to a car seat and a car equipped with said heated decorative cover. The application also relates to a method for manufacturing the heating type decorative face mask and the automobile seat.

Description

Heated trim mask, car seat equipped with same, and manufacturing method thereof

This application is a divisional application of Chinese Invention Patent Application No. 201610801626.1 filed on September 2, 2016, entitled "Heated Decorative Mask, Car Seat Equipped with It and Manufacturing Method thereof".

technical field

The present invention generally relates to heated trim visors, automotive seats equipped with such heated trim visors, and methods of making heated trim visors.

Background technique

Generally, a car seat mainly includes a cushion portion and a backrest portion. Each of the seat cushion part or the backrest part includes a frame, a foam body fixed on the frame body, and a decorative cover assembled and covered on the foam body. In recent years, heated car seats have become more widely used in modern cars. For this car seat, it is also necessary to add a heating layer composed of a heating resistor between the foam body and the decorative mask.

The decorative mask includes a skin layer and a sponge layer. During the manufacture of car seats, the fabric or leather used to make the skin layer is usually first cut into facing pieces. The individual facing pieces are then laminated and/or sewn together with matching sized foam layers. The sponge layer plays the role of smoothing the epidermis and improving comfort. Next, the veneer pieces are sewn together to form the decorative face mask. The heating layer is then sewn to the foam layer of the trim mask or bonded to the foam. Finally, the decorative mask is assembled and coated on the foam body to form the seat cushion part or the backrest part of the car seat.

Usually, the supplier will supply the decorative mask and the heating layer separately to the manufacturer. Then, the above-mentioned car seat manufacturing process is completed by the seat manufacturer. Thus, the addition of the heating layer must be done by the seat manufacturer.

In addition, for the sake of aesthetics and human body support, various suture shapes are usually made on the decorative mask. On traditional decorative masks, in order to avoid breaking the heating resistance of the heating layer and affecting the heating effect, this type of stitching can only be sewn on the epidermis and/or sponge layer, but not on the heating layer, affecting It affects the seat manufacturing efficiency, and even affects the optimal design of the stitch shape.

Furthermore, in conventional heated car seats, the heating layer is usually located between the trim cover and the foam. When the seat needs to be heated, the heat generated by the heating layer must pass through the skin layer and the sponge layer of the decorative mask to be released outward. If the decorative mask can be made thinner, the speed of heat release to the outside will be increased, thus improving the heating response speed and efficiency.

Contents of the invention

The present invention seeks to provide an improved heated trim mask. The heated trim visor is supplied by the supplier as a stand-alone product, thereby eliminating the need for car seat manufacturers to add a heating layer in the seat manufacturing process. In addition, compared with the seat equipped with the traditional decorative mask, in the seat equipped with the improved heated decorative mask, the heating layer is closer to the skin layer of the decorative mask, thereby improving the heat conduction efficiency. In addition, this improved heated trim mask can be directly sewn on the mask with seam shapes, which improves the flexibility of seat design and simplifies the manufacturing process.

According to one aspect of the present application, there is provided a heated trim mask, especially for a heated car seat or other interior trim, comprising:

epidermis;

sponge layer; and

A heating layer is bonded and fixed between the skin layer and the sponge layer.

Optionally, the heating layer is formed by an electric heating pad, the electric heating pad has a plurality of strands of heating resistors, and the heating resistors in each strand are in a conductive state, and at least some strands can be connected to a power source in parallel.

Optionally, the heating layer is formed by a heating pad, the heating pad has a plurality of strands of heating resistance, each strand of heating resistance is composed of carbon fibers, and each strand is in a conductive state, at least some strands can be connected to the power supply in parallel .

Preferably, the carbon fiber heating mat is a Carbotex ^™ carbon fiber heating mat.

Optionally, at least one stitch pattern is sewn on the heated decorative mask, and the stitch pattern is formed by stitches passing through the skin layer, the sponge layer, and the heating layer.

Optionally, at least one seam pattern is sewn in at least one region of the heated trim mask except the edges.

Optionally, the suture pattern is formed by sutures passing through the skin layer, the sponge layer, and the heating layer.

In one embodiment, a plurality of perforations are provided in the sponge layer.

In another alternative embodiment, a plurality of perforations are provided on the heated trim mask, the perforations passing through the skin layer, the sponge layer, and the heating layer.

Optionally, at least one support strip is stitched to the sponge layer via stitching through the layers of the heated trim mask.

Optionally, the skin layer is made of natural leather, artificial leather or fabric.

Preferably, the heated interior of the automobile includes a heatable door panel surface or a heatable glove box surface and the like.

According to another aspect of the present invention, there is provided a method of manufacturing the aforementioned heated decorative mask, comprising:

provide the epidermis;

Provide a sponge layer;

providing a heating layer; and

The heating layer is bonded and fixed between the skin layer and the sponge layer with an adhesive.

Preferably, the binder is a polymer binder.

According to another aspect of the present invention, a car seat is provided, comprising:

skeleton;

a foam fixed on the frame; and

In the aforementioned heated decorative mask, the heated decorative mask is assembled and covered on the foam body, so that the sponge layer of the heated decorative mask faces the foam body.

According to another aspect of the present invention, there is also provided a method for manufacturing a car seat using the aforementioned heated trim mask, comprising:

Manufacturing a heated decorative mask using the aforementioned method;

Provide foam for attachment to car seats; and

The heated decorative mask is assembled and covered on the foam body in such a way that the sponge layer of the heated decorative mask faces the foam body.

According to another aspect of the present invention, a car is also provided, which includes the aforementioned car seat.

For the heated decorative mask of the present invention, the heating layer is closer to the skin layer so as to improve the heat conduction efficiency. In addition, stitching patterns and perforations can be placed directly into the trim cover, which generally consists of the skin layer, heating layer, and sponge layer, increasing design flexibility and improving the ventilation performance of the car seat, and reducing the cost of car seat manufacturers. The process to be carried out improves the production efficiency.

Description of drawings

The foregoing and other aspects of the invention will be more fully understood from the following detailed description when taken in conjunction with the following drawings. It should be pointed out that the proportions of the drawings may be different for the purpose of clarity, but this will not affect the understanding of the present invention. In the attached picture:

Figures 1a and 1b schematically show partial sectional exploded views of two car seats assembled according to the prior art;

Fig. 2 schematically shows a partial sectional exploded view of a car seat assembled with a heated trim mask according to the present invention;

Figures 3a and 3b schematically illustrate the manufacturing method of the car seat corresponding to Figure 1a and Figure 1b, respectively;

Fig. 4 schematically shows a method corresponding to Fig. 2 for manufacturing a car seat using a heated trim mask according to the present invention; and

Fig. 5 schematically shows several examples of seam shapes that can be sewn on a heated trim mask according to the invention.

Detailed ways

In the various figures of the application, structurally identical or functionally similar features are indicated by the same reference numerals.

Generally, a car seat mainly includes a cushion portion and a backrest portion. Each of the seat cushion part or the backrest part includes a frame, a foam body fixed on the frame body, and a decorative cover assembled and covered on the foam body.

Figure 1a schematically shows a partial cutaway exploded view of a car seat assembled according to the prior art. In this FIG. 1 a the trim mask is indicated by 10 and the foam by 30 . The decorative mask 10 includes a skin layer 11 and a sponge layer 12 . The skin layer 11 is made of any suitable material such as natural leather, artificial leather, fabric or the like. The sponge layer 12 is generally 3 to 10 mm thick for improving the suppleness of the epidermis 11 . The skin layer 11 and the sponge layer 12 are pressed and/or sewn together to form the decorative mask 10 . The heating layer 20 is provided as a separate product. The heating layer 20 is made of heating resistors, such as electric heating wires. In order to avoid breaking the heating resistors, the heating layer 20 is stitched to the trim mask 10 only at discrete individual locations. Then, the decorative mask 10 with the heating layer 20 is assembled and coated on the foam body 30 to form the seat cushion part or the backrest part of the car seat.

As shown in FIG. 1 a , in the seat cushion part or the backrest part of the assembled car seat, the heating layer 20 is located between the decorative cover 10 and the foam body 30 . When electricity is needed for heating, the heat generated by the heating layer 20 must pass through the sponge layer 12 and the skin layer 11 before being dissipated outward.

Fig. 1b schematically shows a partially sectional exploded view of another car seat assembled according to the prior art. In this figure 1 b, the heating layer 20 is adhered to the foam 30 by means of a double-sided adhesive tape. Then, the decorative mask 10 is assembled and coated on the foam body 30 to form the seat cushion or the backrest of the car seat.

Similar to FIG. 1 a , in the seat cushion portion or the backrest portion of the assembled car seat as shown in FIG. 1 b , the heating layer 20 is located between the trim cover 10 and the foam body 30 . When electricity is needed for heating, the heat generated by the heating layer 20 must pass through the sponge layer 12 and the skin layer 11 before being dissipated outward.

Figures 3a and 3b show the assembly process of the car seat corresponding to Figures 1a and 1b, respectively.

As shown in FIG. 3 a , in step S10 , the quality of the raw materials used to manufacture the skin layer, such as natural leather, artificial leather, fabric, etc., is checked first, and the raw materials are cut into blocks of appropriate size. In the process S20, the sponge is also cut into blocks according to the blocks obtained in the process S10. In step S30, the skin layer block is pressed and/or sewn together with the sponge block to form a decorative block. In step S40, the decorative blocks obtained in step S30 are stitched into an integral decorative cover 10 suitable for installation on a car seat. In step S50, the heating layer 20 matching the decorative mask 10 is provided. In step S70, the foam body 30 for fixing to the car seat is provided. In process S60, the decorative mask 10 is sewn to the heating layer 20, wherein, in order to avoid breaking the heating resistance of the heating layer 20, the sewing is only completed at several connection points. In step S80 , the decorative cover 10 with the heating layer 20 sewn together is assembled and coated on the foam body 30 to obtain a final seat cushion or backrest assembly.

In the assembly process shown in Figure 3b, the steps S10, S20, S30, S40, S50 and S70 are the same as shown in Figure 3a, but in the step S61, the heating layer 20 provided in the step S50 is bonded to the On the foam body 30 provided by S70. Then, in step S80, the decorative mask 10 obtained in step S40 is assembled and covered on the foam body 30 with the heating layer 20 adhered to obtain the final seat cushion part or backrest part assembly.

In the assembly process shown in Figures 3a and 3b, the steps S10, S20, S30, S40, S50 and S70 are usually performed by the supplier. The trim cover 10, the heating layer 20 and the foam 30 are provided to car seat manufacturers as independent products. Then, the processes S60, S61 and S80 are completed by the car seat manufacturer. In this way, the completion of the steps S60 and S61 is indispensable at the car seat manufacturer.

In addition, for functional requirements or aesthetic requirements, it is sometimes necessary to sew various suture shapes on the decorative mask 10 . As far as the prior art is concerned, this can only be done when the decorative mask 10 is prepared in step S40. In addition, for a car seat with a ventilation function, it is necessary to drill a plurality of ventilation holes on the decorative mask 10 . However, since the heating layer 20 is located below the decorative mask 10 and cannot be perforated, ventilation will be affected.

FIG. 2 schematically shows a heated trim mask 100 and its assembly on the foam body 30 of a car seat according to an embodiment of the present invention. It should be clear to those skilled in the art that the heated decorative mask 100 can be used not only in car seats, but also in other occasions that need to be equipped with a heating function.

The heated decorative mask 100 includes a skin layer 101 , a heating layer 103 and a sponge layer 102 . The skin layer 101 and the sponge layer 102 can be prepared in a similar manner as the skin layer 11 and the sponge layer 12 as shown in Figures 1a and 1b.

In one embodiment of the invention, the heating layer 103 is an electric heating pad. The electric heating pad is bonded and fixed between the skin layer 101 and the sponge layer 102 with any suitable adhesive such as polymer adhesive, so that the heated decorative mask 100 can be manufactured as a single product. Preferably, the electric heating pad may have multiple strands of heating resistors, and the heating resistors in each strand are in a conductive state. At the same time, at least some of the strand heating resistors are connected in parallel with the power supply. Individual heating strands may be applied to the heating pad by knitting, sewing, stitching, braiding or felting. Knitting is the preferred way. Each heating strand may be loose. That is, the heating strands may be attached to the heating mat such that the heating strands are allowed to move relative to the heating mat, in particular sideways relative to the plane in which the heating mat lies. Preferably, at least a portion of the heating strands are so movable relative to the heating mat. Alternatively, at least a portion of the heating strand can be so moved. Alternatively, at least 70% of the length of the heating strand can be moved in this way. Alternatively, the heating strands can be attached to the heating mat in a non-linear manner, for example in an inextensible, zigzag or coil manner, allowing the heating strands to respond to mechanical loads by stretching.

In a preferred embodiment of the present invention, the heating layer 103 can be a heating pad, which has multiple heating resistors. Each heating resistor consists of carbon fiber. The heating resistors in each strand or each heating strand are in a conductive state. At the same time, at least some of the strand heating resistors are connected in parallel with the power supply. In this way, the heating layer 103 has good flexibility and air permeability, and it is not easy to break the carbon fiber and affect the heating function when the sewing thread passes through it. Individual heating strands may be applied to the heating pad by knitting, sewing, stitching, braiding or felting. Knitting is the preferred way. Each heating strand may be loose. That is, the heating strands may be attached to the heating mat such that the heating strands are allowed to move relative to the heating mat, in particular sideways relative to the plane in which the heating mat lies. Preferably, at least a portion of the heating strands are so movable relative to the heating mat. Alternatively, at least a portion of the heating strand can be so moved. Alternatively, at least 70% of the length of the heating strand can be moved in this way. Alternatively, the individual heating strands can be attached to the heating pad in a non-linear manner, for example in an inextensible, zigzag or coil fashion, allowing the individual heating strands to adjust to the mechanical load by stretching .

The carbon fiber heating pad has two electrodes, each electrode is also multi-strand loose structure, so it can be sewn. Preferably, the heating layer 103 is made of a carbon fiber heating mat with the trade name Carbotex ^TM of Gentherm Company.

When manufacturing the heating type decorative mask 100, at first provide the skin layer 101, the heating layer 103 and the sponge layer 102 respectively; Between 101 and the sponge layer 102, a decorative mask 100 integrated with a heating layer 103 as shown in FIG. 2 is formed. Such a heated trim cover 100 can be provided by a supplier to a car seat manufacturer as a separate product.

Compared with the prior art, since the heating layer 103 is in direct contact with the epidermis 101, the heat generated by the heating layer 103 will be dissipated more quickly, which improves the heating response speed of the car seat. In addition, as shown in FIG. 2 , the heated decorative mask 100 can be directly sewed with seams to improve design flexibility. Figure 5 shows several examples of seam patterns that can be sewn on a heated trim mask according to the invention. The heated trim mask 100 may be provided with at least one seam pattern. For example, the heated trim mask 100 may be provided with at least one seam molding in at least one area other than the perimeter. In this application, the sutures pass through the skin layer 101 , the heating layer 103 and the sponge layer 102 of the decorative mask 100 at the same time to form a suture shape.

Furthermore, for mounting on a vehicle seat, it is necessary to sew support strips on the side of the trim panel facing the foam. In the prior art, the support strip cannot be directly sewed on the decorative mask with the heating layer, and the support strip can only be sewed on the side where the sponge layer of the decorative mask is, which may affect the installation and fixing strength sometimes. With the heated decorative mask 100 of the present invention, the supporting strip can be directly sewed on the side facing the foam body, which helps to improve the installation and fixing strength of the decorative mask on the car seat.

In addition, a plurality of ventilation holes can be directly drilled on the heated decorative mask 100 of the present invention, and the ventilation holes can pass through the entire heated decorative mask 100 , that is, through the heating layer 103 , which improves the ventilation performance of the car seat. In an alternate embodiment of the present invention, holes may be punched only in the sponge layer 102 of the heated trim mask 100 .

FIG. 4 schematically shows a method corresponding to FIG. 2 for manufacturing a car seat using the heated trim mask according to the invention.

In operation S41 , a decorative block integrated with a heating layer 103 is provided, wherein each decorative block has a skin layer 101 , a sponge layer 102 and a heating layer 103 interposed therebetween. In step S42, each decorative block is sewn into a decorative mask. In the process S70, the foam 30 is provided similarly to that shown in FIGS. 1a and 1b. In step S80, the decorative mask obtained in step S42 is assembled and covered on the foam body 30 with the sponge layer 102 facing the foam body 30 to obtain a final seat cushion or backrest assembly.

Because the supplier directly provides the heated decorative mask and foam prepared in steps S42 and S70 to the car seat manufacturer as independent products, the car seat manufacturer only needs to assemble and coat the two in step S80. Final required components are available. Compared with the manufacturing method of the prior art shown in Fig. 1a and 1b, the steps S60 and S61 are reduced for the car seat manufacturer, the production efficiency of the car seat is improved, and the manufacturing cost is further reduced.

It should be clear to those skilled in the art that the heated trim mask explained in this specification can be used to manufacture heated automotive interiors, including but not limited to heated car seats, heated door panel surfaces, or heated glove box surfaces, etc.

While specific embodiments of the invention have been described in detail, these have been presented for purposes of illustration only and should not be construed as limiting the scope of the invention. Various alternatives, changes and modifications can be devised without departing from the spirit and scope of the invention.

Claims (13)

1. A heated trim mask (100) for a heated car seat or other interior trim, comprising: epidermis (101); sponge layer (102); and A fixed heating layer (103) is bonded between the skin layer (101) and the sponge layer (102), the heating layer is formed by an electric heating pad, and the electric heating pad is sewn with multiple strands of heating resistance to enabling the strands to move relative to the pad and allow adjustment to mechanical loads by stretching, and the heating resistors in each strand are in a conductive state, at least some of the strands can be connected in parallel to a power source, in said heated trim mask There is at least one seam shape sewn on it, and the seam shape is formed by stitches passing through the skin layer, the sponge layer, and the heating layer, and the decorative mask needs to be facing the foaming surface of the car. A support bar is sewn on the body side. 2. A heated trim mask (100) for a heated car seat or other interior trim, comprising: epidermis (101); sponge layer (102); and A fixed heating layer (103) is bonded between the skin layer (101) and the sponge layer (102), the heating layer is formed by a heating pad, and the heating pad is sewn with multiple strands of heating resistance so that each The strands are movable relative to the pad and allow adjustment to the mechanical load by stretching, each strand of heating resistance is composed of carbon fibers, and each strand is in a conductive state, at least some of the strands can be connected in parallel to a power source, in said heating At least one seam shape is sewn on the decorative mask, and the seam shape is formed by stitching through the skin layer, the sponge layer, and the heating layer, and the decorative mask needs to be positioned on its side facing the car. A support strip is sewn on the foam side. 3. The heated decorative mask (100) according to any one of claims 1 to 2, characterized in that at least one seam shape is sewn on at least one region of the heated decorative mask except the edge. 4. The heating type decorative mask (100) according to claim 3, characterized in that, the stitching pattern is formed by passing through the skin layer (101), the sponge layer (102) and the heating layer (103) suture formation. 5. The heating decorative mask (100) according to any one of claims 1-2, characterized in that a plurality of perforations are provided in the sponge layer (102). 6. The heating-type decorative mask (100) according to any one of claims 1 to 2, characterized in that a plurality of perforations are arranged on the heating-type decorative mask, and the perforations pass through the skin layer (101 ), the sponge layer (102), and the heating layer (103). 7. The heated decorative mask (100) according to any one of claims 1 to 2, characterized in that at least one support strip is sewn to the sponge layer via stitches passing through the layers of the heated decorative mask. 8. The heating decorative mask (100) according to any one of claims 1-2, characterized in that, the skin layer (101) is made of natural leather, artificial leather or fabric. 9. The heated decorative mask (100) according to any one of claims 1 to 2, characterized in that, the heated interior of the automobile includes a heatable door panel surface or a heatable glove box surface and the like. 10. A method of manufacturing the heated decorative mask (100) according to any one of claims 1 to 9, comprising: providing an epidermis (101); providing a sponge layer (102); providing a heating layer (103); and The heating layer (103) is bonded and fixed between the skin layer (101) and the sponge layer (102) by an adhesive. 11. A car seat comprising: skeleton; a foam (30) fixed on the frame; and According to the heated decorative mask (100) according to any one of claims 1 to 9, the heated decorative mask (100) is assembled and covered on the foam body (30), so that the heated decorative mask ( 100) of the sponge layer (102) facing the foam (30). 12. A method of manufacturing a car seat utilizing the heated trim mask (100) according to any one of claims 1 to 9, comprising: Utilize the method described in claim 10 to manufacture a heated decorative mask (100); providing a foam (30) for fixing on a car seat; and The heated decorative mask (100) is assembled and covered on the foam body (30) in such a way that the sponge layer (102) of the heated decorative mask (100) faces the foam body (30). 13. A motor vehicle comprising the motor vehicle seat of claim 11.

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