JP2023059890A - Vehicle interior member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicle interior member comprising a heating member of which a degree-of-freedom of installation location is high, and electric power consumption is suppressed.

SOLUTION: A film heating element 40 is so configured as to cover a surface of a foam 24 with a skin material 26, and is provided between the foam 24 and the skin material 26. The film heating element comprises: a flexible base sheet 42 which has insulation property; plural wiring patterns 44, 46 which are formed on the base sheet 42, are connected to a power supply device, and are separated from each other; and a heating part 48 which is so formed on the base sheet 42 as to connect the plural wiring patterns 44, 46, and has PTC characteristic.

SELECTED DRAWING: Figure 2

COPYRIGHT: (C)2023,JPO&INPIT

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to a vehicle interior member, and more particularly to a vehicle interior member provided with a heating device.

2. Description of the Related Art In general, various automobiles such as passenger cars are provided with a console box as a vehicle interior member between the front seats (driver's seat and front passenger's seat) to store personal items in a detachable manner. This console box consists of a console body, which is a main body in which an article storage section for storing various articles is defined, and an opening/closing member that is supported by a support mechanism on the rear upper part of the main body and opens and closes an upper opening of the article storage section. a lid member; Since such a console box is located on the side of the front seat, it is often installed by adjusting the upper surface of the lid member to a suitable height for use as an armrest ( For example, Patent Document 1).

JP 2013-241040 A

By the way, as disclosed in Patent Document 1, there is a heating device for cold weather in which a nichrome wire heater is built in the cover member or the handle of the console box so as to directly warm the fingers of the driver. However, since such a heating device is inferior in its shape-following property, there is a problem that the place where the heating device is installed is limited. In addition, many automobiles are equipped with an air conditioner such as an air conditioner as a heating device, and are configured to keep the passenger compartment at an appropriate temperature in cold weather. However, such air conditioners and heaters such as nichrome wire heaters consume a large amount of power. For this reason, in a conventional vehicle that uses an internal combustion engine (engine) that obtains power by burning fuel such as gasoline as a power source, such a heating system can be used without problems, but electric vehicles Automobiles such as electric vehicles and hybrid vehicles that use an electric motor alone or in combination as a power source have a limited amount of electric power that can be used for a heating system, and there is a possibility that its use will be restricted.

SUMMARY OF THE INVENTION Accordingly, the present invention has been proposed in view of the above-mentioned problems inherent in the prior art, and has been proposed to preferably solve the problems. An object of the present invention is to provide a vehicle interior member.

In order to solve the above problems and achieve the intended purpose, the first invention is
A vehicle interior member configured to cover the surface of a foam having cushioning properties with a skin material,
a flexible base sheet having insulating properties;
a plurality of mutually separated wiring patterns formed on the base sheet and connected to a power supply;
a heat generating portion having PTC characteristics formed on the base sheet so as to connect the plurality of wiring patterns;
is provided between the foam and the skin material.
In this way, by providing a film heating element with a wiring pattern and a heat generating portion on a flexible base sheet as a heating device between the foam and the skin material, the deformation of the foam can be followed. The film heating element can be easily deformed, and heating can be effectively performed while maintaining a good feeling of use. In other words, the heating device can be preferably installed even on a vehicle interior member requiring cushioning properties for which it has been difficult to install a heating device in the past. Moreover, since the heat-generating part has the PTC characteristic, it is possible to prevent excessive temperature rise autonomously without providing a temperature sensor such as a thermostat or a controller for temperature control, and at the same time, it is possible to suppress power consumption.

The second invention is
The plurality of wiring patterns are formed in a comb shape having a pattern base line extending in a predetermined direction and branch pattern lines provided at predetermined intervals with respect to the extending direction of the pattern base line. The gist is that a branch pattern line of another wiring pattern is positioned between two branch pattern lines.
Thus, by forming the wiring pattern of the film heating element in a comb shape, the distance between the wiring patterns can be set short, so that the electrical conductivity of the heat generating portion is improved, and the heat generating property of the heat generating portion is improved.

The third invention is
The base sheet is made of a thermoplastic elastomer sheet, and the wiring pattern is formed by printing with a silver paste, and the heating portion is formed by printing with a carbon paste.
By forming the film heating element using the thermoplastic elastomer sheet as the base sheet in this way, the film heating element itself has flexibility, and the feeling of use when the passenger touches it can be improved.

The fourth invention is
The film heating element has a connection wiring part connected to the wiring pattern,
A power supply wiring connected to a power supply is provided on the back side of the base material that supports the foam,
The skin material covering the surface of the foam is fixed by winding the end of the skin material on the back side of the base material and extending from the end of the skin material wound on the back side of the base material. The gist is that a terminal of the connection wiring portion is configured to be connected to the power supply wiring.
In this way, by extending the connection wiring part of the film heating element from the end of the skin material wrapped around the back side of the base material, the connection wiring part can be easily connected to the power supply wiring on the back side of the base material. can. In addition, since the film heating element provided between the foam and the skin material can be connected to the power wiring without perforating the foam or the base material, the cushioning properties of the foam can be maintained. A good feeling of use can be realized.

ADVANTAGE OF THE INVENTION According to this invention, the degree of freedom of an installation location is high and power consumption can be suppressed.

(a) is a schematic perspective view showing a console box as a vehicle interior member according to the present invention, and (b) is a schematic perspective view showing a state in which a lid member of the console box is opened. It is a schematic perspective view which decompose|disassembles and shows the cover member of a console box. (a) is a front view showing an enlarged film heating element, and (b) is a cross-sectional view taken along the line AA in (a). FIG. 4 is a schematic cross-sectional view showing the process of attaching the film heating element, where (a) shows the state where the film heating element is attached to the foam fixed to the base material, and (b) shows the state of (a). (c) shows the state where the skin material and the connection wiring part of the film heating element are wrapped around the bottom surface of the base material, (d) shows the state of (c). 1 shows a state in which the cover member is attached to the base material of FIG.

BEST MODE FOR CARRYING OUT THE INVENTION Next, preferred embodiments of a vehicle interior member according to the present invention will be described below with reference to the accompanying drawings. In the embodiment, a console box 10 installed between front seats (driver's seat and front passenger's seat) S, S in a passenger compartment of a vehicle is exemplified as a vehicle interior member, as shown in FIG. 1(a). Further, in the console box 10 of the embodiment, front and rear refers to the front and back direction of the vehicle when installed in the vehicle, and left and right refers to the left and right direction based on the forward direction of the vehicle. In FIG. 1, the lower left side of the drawing is the front side of the vehicle, and the upper right side of the drawing is the rear side of the vehicle.

As shown in FIG. 1, a console box 10 according to the embodiment includes a box body 12 having a storage section 14 for storing personal items such as eyeglasses, and a lid member disposed on the top of the box body 12. 20. In the console box 10, the rear side of the cover member 20 is rotatably supported by a support mechanism (not shown) provided on the rear side of the box body 12, and the cover member 20 is rotatable with respect to the box body 12 using the support mechanism as a rotation fulcrum. It has become. By rotationally displacing the cover member 20, the console box 10 can open and close the opening 16 of the storage section 14 that opens to the top of the box body 12. As shown in FIG.

As shown in FIG. 2, the lid member 20 includes a base material 22 serving as a framework for securing the rigidity of the lid member 20, a foam 24 provided on the upper surface side of the base material 22, and an outer surface of the foam 24. and a covering skin material 26 . In addition, the base material 22 has a cover member 28 (see FIG. 1B) on the lower surface on the storage section 14 side. is decorated with a cover member 28 to maintain good appearance. The base material 22 and the cover member 28 are made of synthetic resin or the like by injection molding or the like. The foam 24 is a member that is provided on the upper surface of the base material 22 and forms the outer shape of the lid member 20, and is made of an elastic and flexible material such as soft urethane foam. The foam 24 is fixed to the upper surface of the base material 22 by adhering it to the upper surface of the base material 22 with an adhesive such as hot melt as fixing means. The fixing means for fixing the foam 24 to the base material 22 is not limited to the adhesive, and it is a matter of course that various conventionally known means can be employed.

The skin material 26 is a member that covers the outer surface of the foam 24 and forms the appearance of the lid member 20, and is made of synthetic leather, fabric, leather, or the like formed of a synthetic resin material such as polyurethane or polyvinyl chloride. It is formed by sewing a skin base material, and is formed into a bag-like shape that can be covered and contained from above the foam 24 fixed to the base material 22 . As shown in FIG. 4(b), the skin material 26 is formed so that the ends of the skin material 26 extend below the foam 24 when the foam 24 is covered from above. The end of the covering material 26 wound on the side is fixed by adhering it to the lower surface of the base material 22 with an adhesive such as hot melt as a fixing means. That is, the end of the skin material 26 is accommodated in the space between the lower surface of the base material 22 and the cover member 28, and the end of the skin material 26 is not exposed to the outside when the lid member 20 is opened, thereby improving the appearance. I try to keep it. The fixing means for fixing the end of the skin material 26 to the base material 22 is not limited to the adhesive, and may be fixed using a hook-shaped engaging portion, a fastener, or the like. Various known means can be employed.

Further, as shown in FIG. 1 , an operating portion 30 is provided substantially in the central portion of the front side of the lid member 20 , and a storage space 34 is provided in the base material 22 corresponding to the mounting position of the operating portion 30 . is defined with an opening in the The operating portion 30 is always urged forward by an unillustrated urging member such as a spring, and a first engaging portion 32 is provided at the lower portion of the operating portion 30 . A second engagement portion 18 is provided on the top surface of the front portion of the box body 12 to engage with the first engagement portion 32 provided on the operation portion 30 when the lid member 20 is closed. The lid member 20 is held in the closed state by the engagement of the first engaging portion 32 and the second engaging portion 18 . By pushing the operating portion 30 backward, the engagement between the first engaging portion 32 and the second engaging portion 18 is released, and the lid member 20 is allowed to open.

As shown in FIGS. 1, 2, and 4, the lid member 20 is provided with a film heating element 40 between the foam 24 and the skin material 26. As shown in FIGS. As shown in FIG. 3, the film heating element 40 includes wiring patterns 44, 46 formed on a flexible base sheet 42 and wiring patterns 44, 46 formed on the base sheet 42 so as to be connected to the wiring patterns 44, 46. The heating portion 48 is configured to generate heat when the wiring patterns 44 and 46 are energized. In this embodiment, a first wiring pattern 44 connected to one electrode (positive electrode) and a second wiring pattern 46 connected to the other electrode (negative electrode) are formed on one surface of the base sheet 42. , the first wiring pattern 44 and the second wiring pattern 46 are connected by the heating portion 48 . The wiring patterns 44 and 46 and the heat generating portion 48 formed on the base sheet 42 are preferably covered with an insulating film 50 equivalent to the base sheet 42 . In the following description, the surface of the base sheet 42 on which the wiring patterns 44 and 46 and the heat generating portion 48 are formed is referred to as the front surface, and the opposite surface is referred to as the back surface. Then, the back surface of the base sheet 42 is fixed to the upper surface of the foam 24 or the inner surface of the skin material 26 facing the foam 24 using a fixing means such as an adhesive, and the foam 24 in this state is fixed to the skin material 26 . The film heating element 40 is positioned between the foam 24 and the skin material 26 by covering with. The position of the film heat generating element 40 with respect to the foam 24 is not particularly limited, but in this embodiment, it is positioned substantially in the center of the left and right at a position biased toward the front side of the upper surface of the foam 24. It is

Here, as the base sheet 42, a flexible insulating film such as polyethylene terephthalate can be used. . In particular, thermoplastics having rubber elasticity at room temperature, such as amide thermoplastic elastomers, ester thermoplastic elastomers, olefin thermoplastic elastomers (TPO), styrene thermoplastic elastomers (TPS), and urethane thermoplastic elastomers (TPU). A thermoplastic elastomer sheet obtained by forming an elastomer (TPE) into a sheet is suitable. Further, the base sheet 42 can be formed in any shape, but in this embodiment, it is formed in a thick T shape with belt-like extending portions 42b, 42b extending from both sides of a rectangular main body portion 42a. The body portion 42a constitutes a heat generating portion 48, and the extension portions 42b, 42b constitute connection wiring portions 52, 54, which will be described later. The thickness of the base sheet 42 is not particularly limited, but a thickness of 1 mm or less provides excellent flexibility and a favorable feel when the passenger touches it.

Each of the first wiring pattern 44 and the second wiring pattern 46 is formed by screen printing a conductive paste such as silver paste on the base sheet 42 . As shown in FIG. 3, the first wiring pattern 44 extends linearly along one edge of the main body portion 42a of the base sheet 42 (left edge in FIG. 3A). It is provided at a predetermined interval with respect to the extending direction of the pattern base line 44a and the first pattern base line 44a, and extends toward the other edge of the base sheet 42 (the right edge in FIG. 3(a)). It is formed in a comb-teeth shape having a plurality of first branch pattern lines 44b, and is configured such that a first connection wiring portion 52, which will be described later, is connected to an end portion of the first pattern base line 44a. Similarly, as shown in FIG. 3, the second wiring pattern 46 is arranged linearly along the other edge (the right edge in FIG. 3(a)) of the main body portion 42a of the base sheet 42. Extending second pattern base line 46a, provided at a predetermined interval in the extending direction of the second pattern base line 46a, to one edge of the base sheet 42 (the left edge in FIG. 3A) It is formed in a comb shape having a plurality of second branch pattern lines 46b extending toward the second branch pattern lines 46b. .

The first wiring pattern 44 and the second wiring pattern 46 are formed on the main body portion 42a of the base sheet 42 with a predetermined space therebetween so that the first wiring pattern 44 and the second wiring pattern 46 do not come into contact with each other. In addition, the second branch pattern lines 46b are alternately formed between the first branch pattern lines 44b. A heat-generating portion 48 is provided so as to fill the space between the first wiring pattern 44 and the second wiring pattern 46 in the body portion 42a of the base sheet 42, and the first wiring pattern 44 and the heat-generating portion 48 pass through the heat-generating portion 48. A second wiring pattern 46 is connected.

The exothermic part 48 is made of a material having a positive temperature characteristic (the characteristic that the resistance increases as the temperature rises: PTC (positive temperature coefficient), and the resistance value increases as the temperature rises due to self-heating due to energization, The heat generation part 48 having such PTC characteristics is configured to autonomously suppress the current and adjust the heat generation temperature.The heat generation part 48 having such a PTC characteristic disperses conductive particles such as carbon particles in urethane resin, polyolefin resin, or the like. In this embodiment, the heat-generating portion 48 is formed by screen-printing a film on the base sheet 42 using carbon ink (carbon paste) containing carbon particles, urethane resin, and wax as main components. Here, if the content of the carbon particles in the heat generating portion 48 exceeds 60% by weight, the PTC characteristic becomes difficult to develop, so the carbon particles are made in the range of 20 to 60% by weight. It is preferable that the urethane resin is 20 to 50% by weight and the wax is 10 to 30% by weight.The thicknesses of the wiring patterns 44 and 46 and the heat generating portion 48 are not particularly limited. It can be formed with a thickness of 7 to 10 μm.

Further, the heat-generating portion 48 of the embodiment is formed on the entire area of the body portion 42a of the base sheet 42 where the first wiring pattern 44 and the second wiring pattern 46 are not formed. In addition, in FIG. 3, the formation range of the heat generating portion 48 is indicated by a dot-like pattern. Note that the heat generating portion 48 may be formed so as to overlap the region in which the first wiring pattern 44 and the second wiring pattern 46 are formed. It may be formed on the entire surface on which the wiring pattern 46 is formed. By increasing the formation area of the heat generating portion 48 in this manner, the heat generating area is increased, which is more preferable. Here, the heat setting temperature (for example, 60° C., 80° C.) of the heat generating portion 48 is determined by the first wiring pattern 44 and the second wiring pattern 46, the compounding amount of the conductive material of the heat generating portion 48, and the amount of heat generation. It can be easily adjusted by changing the film thickness or the like in which the portion 48 is formed by printing.

Further, the film heating element 40 of the embodiment includes a strip-shaped first connection wiring portion 52 extending from one edge of the main body portion 42a of the base sheet 42 and connected to the first wiring pattern 44, and the base sheet 42 and a strip-shaped second connection wiring portion 54 extending from the other edge of the wiring pattern 46 and connected to the second wiring pattern 46 . Here, the connection wiring portions 52 and 54 can be configured with the same configuration as the first wiring pattern 44 and the second wiring pattern 46 . That is, it can be configured by forming a conductive paste material such as silver paste on the extending portion 42b extending from the main body portion 42a of the base sheet 42 by screen printing. By configuring in this way, it is possible to efficiently form the connection wiring portions 52 and 54 and the wiring patterns 44 and 46 in a single printing process.

Here, as shown in FIG. 4(a), each of the connection wiring portions 52 and 54, when the base sheet 42 is laid along the upper surface of the foam 24 to which the base sheet 42 is fixed, the connection wiring portion 52 and 54 , 54 are formed to extend below the foam 24 . Each of the connection wiring portions 52 and 54 is formed to have a length that extends (exposes) outward from the end of the skin material 26 that covers the foam 24 from above. 26 are wound and fixed, each connection wiring part 52, 54 can be wound on the lower surface side of the base material 22. - 特許庁That is, the ends of the connection wiring portions 52 and 54 are accommodated in the space between the lower surface of the base material 22 and the cover member 28, and the terminals of the connection wiring portions 52 and 54 are exposed to the outside when the lid member 20 is opened. I try not to do it to keep it looking good. A power supply wiring 60 is attached to the lower surface of the base material 22 and connected to a power supply device provided in the vehicle. is configured to In this manner, the connection wiring portions 52 and 54 are extended (exposed) outside the ends of the skin material 26 and wound together with the skin material 26 on the lower surface side of the base material 22. It becomes possible to perform the connection work with the power supply wiring 60 disposed on the back side of the base material 22 extremely easily. Here, the power wiring 60 is provided so as to extend in the front-rear direction on the lower surface of the base material 22, and extends from the rear side of the base material 22 where the support mechanism for rotatably supporting the lid member 20 is located to the box main body 12 side. It is configured to be pulled around.

Next, the operation of the vehicle interior member according to the present embodiment described above will be described. As shown in FIG. 4A, the foam 24 is fixed by adhering it to the upper surface of the base material 22 with an adhesive such as hot melt as a fixing means, and the adhesive is applied to the upper surface of the foam 24. As shown in FIG. The base sheet 42 of the film heating element 40 is fixed by using a fixing means such as a fixing means. At this time, the connection wiring portions 52 and 54 of the film heating element 40 are laid along the upper surface of the foam 24 so that the ends of the connection wiring portions 52 and 54 are extended downward from the foam 24, and the surface material 26 is is covered from above the foam 24 (Fig. 4(b)). In this state, the end of the skin material 26 extending downward from the foam 24 and the ends of the connection wiring portions 52 and 54 are wrapped around the lower surface side of the base material 22, and the ends of the skin material 26 are fixed by a fixing means such as hot melt. It is adhered and fixed to the lower surface of the base material 22 with an adhesive as shown in FIG. 4(c). Then, after connecting the connection wiring portions 52 and 54 extending (exposed) outside the terminal of the skin material 26 to the power supply wiring 60 provided on the lower surface of the base material 22, the cover member is attached to the lower surface side of the base material 22. By attaching 28, the cover member 20 of the console box 10 having the film heating element 40 between the foam 24 and the skin material 26 can be formed (Fig. 4(d)). The structure for mounting the cover member 28 on the base material 22 may employ any conventionally known structure, but in FIG. A cover member 28 is attached to the lower surface side of the base material 22 by fitting it into an attachment hole 28a formed in .

In this way, the connection wiring portions 52 and 54 of the film heating element 40 extend from the ends of the skin material 26 wrapped around the back side of the base material 22 , so that the connection wiring portions 52 and 54 are connected to the back side of the base material 22 . can be easily connected to the power supply wiring 60 of . Further, when the film heating element 40 is provided between the foam 24 and the skin material 26, in order to connect the wiring to the film heating element 40, it is necessary to insert the wiring at an appropriate position of the foam 24 or the base material 22. It can also be realized by processing such as forming a general perforation. In this case, the cushioning property of the foam body 24 changes before and after the forming process such as perforation of the foam body 24 and the base material 22, and the repulsive force of the foam body 24 is reduced depending on the position where the perforation or the like is formed. It may also lead to a loss of cushioning properties. On the other hand, in the present embodiment, the film heating element 40 provided between the foam 24 and the skin material 26 is connected to the power wiring 60 without perforating the foam 24 or the base material 22 . , the cushioning property of the foam 24 is not impaired, and a good feeling of use can be realized.

A film heating element 40 having wiring patterns 44 and 46 and a heat generating portion 48 provided on a flexible base sheet 42 is provided as a heating device between the foam 24 and the skin material 26 to provide a console box. The heat is easily transmitted to the hand of the passenger who touches the cover member 20, and the film heating element 40 can easily deform following the deformation of the foam 24 due to contact. That is, the heating device (film heating element 40) can be preferably installed on the cover member 20 of the console box, which requires a cushioning property for which it is difficult to install a heating device in the past, while maintaining a good usability. can be effectively heated. In addition, since the heating portion 48 of the film heating element 40 has a PTC characteristic, it is possible to autonomously prevent an excessive temperature rise without providing a temperature sensor such as a thermostat or a controller for temperature control. Power consumption can be reduced.

Also, the wiring patterns 44 and 46 of the film heating element 40 are formed in a comb shape so that the first branch pattern line 44b of the first wiring pattern 44 and the second branch pattern line 44b of the second wiring pattern 46 are connected. By staggering the wiring patterns 44 and 46 alternately, the distance between the wiring patterns 44 and 46 can be shortened. Therefore, the electrical conductivity of the heat generating portion 48 is improved, and the heat generating property of the heat generating portion 48 is improved.

Furthermore, by using a thermoplastic elastomer sheet for the base sheet 42 of the film heating element 40, the film heating element 40 itself has flexibility, and the feeling of use when the passenger touches it can be improved.

(Change example)
The vehicle interior member according to the present invention is not limited to those exemplified in the above-described embodiments, and various modifications are possible. An example of modification is shown below.
(1) In the present embodiment, the back surface of the base sheet 42 of the film heating element 40 is attached to the top surface of the foam 24. The back surface of the sheet 42 may be attached to cover the foam 24 with the skin material 26 to which the film heating element 40 is attached.
(2) In the present embodiment, the film heating element 40 is provided on the lid member 20 provided as an interior member of the vehicle in the console box 10 installed in the passenger compartment so that it can be opened and closed. may
(3) In the present embodiment, the console box 10 installed in the passenger compartment was exemplified as the vehicle interior member. can be adopted. For example, it may be provided on the seat surface or backrest of the seat on which the passenger sits, or may be applied to an armrest supported by the backrest. Furthermore, it can also be preferably used for a door trim mounted inside a door panel or a glove box in an instrument panel.
(4) In the present embodiment, the wiring patterns 44 and 46 of the film heating element 40 are formed in a comb shape, but they are not limited to this, and can be formed in any shape.
(5) In the present embodiment, the film heating element 40 is formed in a thick T shape with band-like extensions 44b, 44b extending from both sides of the rectangular main body 44a. The shape is not limited to this. For example, the base sheet 42 is formed in a rectangular shape, and the first wiring pattern 44, the second wiring pattern 46, and the heat generating portion 48 are formed on the base sheet 42 in an area spaced apart from the outer peripheral edge to generate heat. A region is provided, and a first connection wiring portion 52 and a second connection wiring portion 54 are formed in a region outside the heat generation region of the base sheet 42 to form a first wiring pattern 44 and a second wiring pattern 46. , the overall shape of the film heating element 40 may be rectangular. In this case, the base sheet 42 is formed so that the region outside the heat generating region extends (exposes) outward from the end of the skin material 26 that covers the foam 24 from above, and the region outside the heat generating region is covered with the skin. It is constructed so that it can be rolled up on the lower surface side of the base material 22 together with the material 26 . In this example, the base sheet 42 has an area (a region outside the heat generating area) where the wiring patterns 44 and 46, the heat generating portion 48, and the connection wiring portions 52 and 54 are not arranged.

24 foam, 26 skin material, 40 film heating element, 42 base sheet 44 first wiring pattern (wiring pattern), 46 second wiring pattern (wiring pattern)
48 heat generating part, 52 first connection wiring part (connection wiring part)
54 Second connection wiring part (connection wiring part)

Claims (4)

A vehicle interior member configured to cover the surface of a foam having cushioning properties with a skin material,
a flexible base sheet having insulating properties;
a plurality of mutually separated wiring patterns formed on the base sheet and connected to a power supply;
a heat generating portion having PTC characteristics formed on the base sheet so as to connect the plurality of wiring patterns;
and a film heating element provided between the foam and the skin material. The plurality of wiring patterns are formed in a comb shape having a pattern base line extending in a predetermined direction and branch pattern lines provided at predetermined intervals with respect to the extending direction of the pattern base line. 2. The vehicle interior member according to claim 1, wherein a branch pattern line of another wiring pattern is positioned between the branch pattern lines. 3. The vehicle interior member according to claim 1, wherein said base sheet is made of a thermoplastic elastomer sheet, and has a wiring pattern printed with silver paste and a heat generating portion printed with carbon paste. The film heating element has a connection wiring part connected to the wiring pattern,
A power supply wiring connected to a power supply is provided on the back side of the base material that supports the foam,
The skin material covering the surface of the foam is fixed by winding the end of the skin material on the back side of the base material and extending from the end of the skin material wound on the back side of the base material. The vehicle interior member according to any one of claims 1 to 3, wherein a terminal of the connection wiring portion is configured to be connected to the power supply wiring.

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