Static eliminator of vehicle

Abstract

To provide a static eliminator of a vehicle which can stably and continuously obtain static elimination effect by eliminating electro static charge of air in a cabin.SOLUTION: A static elimination sheet with an outer sheet that has a base material of an unwoven cloth containing a conductive fiber is pasted to an outer face of an air-conditioning duct. Charged air due to discharge from electronic components in a cabin of the vehicle is discharged by the static elimination sheet, consequently the charged air occurred in the cabin of the vehicle can be discharged, though the static elimination sheet is arranged at a portion that an occupant cannot see.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a static eliminator for a vehicle, and more particularly to an improvement in a configuration for suppressing static electricity buildup on a vehicle body. [Background technology]

[0002] Conventionally, it has been known that the charging of a vehicle body (e.g., charging to a positive polarity) is a factor that deteriorates the aerodynamic characteristics of a vehicle. In other words, if the vehicle body and the air flowing around it are both charged to a positive polarity while the vehicle is running, the repulsive force between them causes the air to separate from the surface of the vehicle body, causing turbulence in the air flow, preventing the intended aerodynamic characteristics from being obtained, and thus reducing the driving stability, etc.

[0003] One example of a static eliminator that neutralizes static electricity in a vehicle body is proposed in Patent Document 1. The static eliminator disclosed in Patent Document 1 includes an outer fabric and an inner fabric that are rubbed together by the motion of a vehicle occupant and become frictionally charged, and the negative static electricity generated in the inner fabric as a result of the outer fabric and the inner fabric being rubbed together by the motion of the occupant neutralizes and eliminates static electricity on a positively charged object. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2019-117709 A Summary of the Invention [Problem to be solved by the invention]

[0005] However, the static eliminator disclosed in Patent Document 1 depends on the movement of the occupant, and therefore the static elimination effect varies depending on the magnitude and frequency of the occupant's movement. For this reason, there is room for improvement in order to obtain a stable and continuous static elimination effect.

[0006] Furthermore, the inventors of the present invention have found that when the air in the vehicle cabin is electrically charged, the vehicle body also becomes electrically charged, which is one of the causes of deterioration in driving stability, etc. One of the causes of the air in the vehicle cabin becoming electrically charged is discharge from electronic components (e.g., steering switches, etc.) installed in the vehicle cabin when the electronic components are used.

[0007] The present invention has been made in consideration of the above points, and its object is to propose a vehicle static eliminator that can obtain a stable and continuous static elimination effect by removing the static electricity from the air inside the vehicle cabin. [Means for solving the problem]

[0008] In order to achieve the above-mentioned object, the vehicle static eliminator of the present invention has at least an outer material and an inner material, the outer material having a base material made of nonwoven fabric containing conductive fibers, and is arranged so that the outer material is constantly in contact with the air in the vehicle's interior space or the air in a space communicating with the interior space.

[0009] Examples of spaces that communicate with the interior space referred to here include spaces that are substantially isolated from the outside of the vehicle by a body panel, etc. (e.g., a dash panel or an exterior body panel, etc.), such as the internal space of the instrument panel or the luggage compartment.

[0010] Due to this specification, the static eliminator contains conductive fibers in the nonwoven fabric used as the base material, and thus can remove static electricity from the air inside the vehicle (the space where the surface of the static eliminator is constantly in contact with air, including the vehicle's interior space and the space connected to the interior space). This allows for a stable and continuous static elimination effect. As a result, static electricity buildup on the vehicle body can be suppressed, and a situation in which the aerodynamic characteristics of the vehicle body deteriorate due to static electricity buildup can be avoided, improving the vehicle's handling stability, etc.

[0011] A specific example of the installation form of the static eliminator is that it is installed in an air conditioning duct disposed in a space communicating with the interior space of the room.

[0012] In general, an air conditioning duct is disposed inside an instrument panel in a vehicle cabin and is a member that is invisible to passengers. Since the static eliminator is attached to such a member, the static eliminator is also invisible to passengers, and thus does not deteriorate the appearance of the vehicle cabin. In addition, the inside of the instrument panel is connected to the interior space of the vehicle cabin through a gap between the instrument panel and other members. In other words, the inside of the instrument panel is a space into which air charged by discharge from electronic components in the interior space can flow. Since the static eliminator is disposed in this space, it is possible to eliminate the static electricity of the charged air. In this way, in this solution, the static eliminator is disposed in a position that is invisible to passengers, but by using this static eliminator, it is possible to eliminate the static electricity of air charged by discharge from electronic components in the interior space of the vehicle cabin.

[0013] A more specific example of the arrangement of the static eliminator is that it is arranged in a position where there is a gap of 5 mm or more between the outer material and the components arranged around the static eliminator.

[0014] This allows a sufficiently thick air layer to exist between the surface of the static eliminator and the surrounding members, and the static elimination effect of the air in the vehicle cabin can be fully exerted. Note that, in the present invention, even if the gap between the surface and the surrounding members is less than 5 mm, as long as there is an air layer between the surface and the surrounding members, it is possible to obtain a certain degree of the static elimination effect of the air in the vehicle cabin. Effect of the Invention

[0015] In the present invention, a static eliminator having a surface made of a nonwoven fabric containing conductive fibers is disposed so that the surface is constantly in contact with the air in the vehicle interior space or the air in a space communicating with the interior space. This allows a stable and continuous static elimination effect to be obtained. As a result, the static electricity buildup on the vehicle body can be suppressed, and a situation in which the aerodynamic characteristics of the vehicle body deteriorate due to static electricity buildup can be avoided, thereby improving the vehicle's handling stability, etc. [Brief description of the drawings]

[0016] [Figure 1] 1 is a perspective view showing a state in which an antistatic sheet according to an embodiment is attached to a part of an air conditioning duct. [Diagram 2] 2 is a cross-sectional view taken along line II-II in FIG. 1, showing peripheral members disposed inside the instrument panel. [Diagram 3] FIG. 2 is a perspective view of an antistatic sheet according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0017] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In this embodiment, the static eliminator according to the present invention is configured as a sheet-shaped static eliminator sheet, and the static eliminator sheet is attached to the outer surface of an air conditioning duct.

[0018] -Explanation of the arrangement of antistatic sheets- Before describing the configuration and materials of the charge removing sheet, the arrangement of the charge removing sheet will be described. As described above, the charge removing sheet is attached to the outer surface of the air conditioning duct.

[0019] Fig. 1 is a perspective view showing a state in which an antistatic sheet 1 according to this embodiment is attached to a part of the outer surface of an air conditioning duct 2. In this Fig. 1, an arrow UP indicates the upward direction, an arrow FR indicates the front of the vehicle, an arrow RH indicates the right side in the vehicle width direction, and an arrow LH indicates the left side in the vehicle width direction.

[0020] 1 is a side defroster duct disposed inside an instrument panel (not shown) at a position toward the left in the vehicle width direction. The air conditioning duct to which the antistatic sheet 1 is applied is not limited to this side defroster duct, and the antistatic sheet 1 can be applied to various air conditioning ducts (face duct, foot duct, etc.). The inside of the instrument panel corresponds to the space communicating with the vehicle interior space (space substantially isolated from the outside of the vehicle by a vehicle body panel, etc.) in the present invention.

[0021] The air conditioning duct 2 is molded by blow molding of resin, and is formed by integrally molding a duct main body portion 21 and a mounting flange portion 22.

[0022] The duct body 21 includes a first extension 23 extending along the vehicle width direction, and a second extension 24 extending toward the inside of the vehicle compartment (rear side of the vehicle) from an inner end of the first extension 23 in the vehicle width direction. The tip of the second extension 24 is connected to a register (not shown) arranged on the instrument panel. This allows air whose temperature and air volume have been adjusted by an air conditioning unit (not shown) to be supplied from the register to the inside of the vehicle compartment through the internal space of the first extension 23 and the internal space of the second extension 24.

[0023] The air conditioning duct 2 is supported by screwing the mounting flange 22 to an instrument panel or other vehicle body member (not shown). The air conditioning duct 2 also has mounting flanges other than the mounting flange 22 shown in Fig. 1, and these mounting flanges are also screwed to the instrument panel or other vehicle body members. The reference numeral 4 in Fig. 1 denotes urethane for preventing condensation.

[0024] In this embodiment, a rectangular antistatic sheet 1 is attached to the outer surface of the first extension 23 of the air conditioning duct 2. More specifically, the first extension 23 has a substantially rectangular cross-sectional shape (cross-sectional shape in a direction perpendicular to the air flow direction) and includes an upper plate 23a, a bottom plate 23b, a front plate 23c, and a rear plate 23d. The antistatic sheet 1 is attached from the upper plate 23a to the front plate 23c and the rear plate 23d. In other words, the surface of the antistatic sheet 1 is disposed so as to be in contact with the air above, in front of, and in rear of the first extension 23 of the air conditioning duct 2.

[0025] Fig. 2 is a cross-sectional view taken along line II-II in Fig. 1, and shows other members (such as an instrument panel reinforcement, hereinafter referred to as peripheral members 3) disposed inside the instrument panel. In Fig. 2, the peripheral members 3 are disposed above the upper plate portion 23a of the air conditioning duct 2.

[0026] In this embodiment, the gap dimension (dimension D in FIG. 2) between the surface of the antistatic sheet 1 and the peripheral member 3 is set to 5 mm or more. That is, a sufficient thickness of air layer is present between the surface of the antistatic sheet 1 and the peripheral member 3. In other words, the antistatic sheet 1 is attached to the outer surface of the air conditioning duct 2 at a position where a gap of 5 mm or more can be secured between the surface of the antistatic sheet 1 and the peripheral member 3.

[0027] The size of the antistatic sheet 1 is set in advance through experiments and simulations according to the amount of discharge from electronic components installed in the vehicle cabin, such as steering switches, etc., and is a size that can sufficiently neutralize the air that has become charged by the discharge. In this embodiment, the antistatic sheet 1 is adopted in a size that covers almost the entire surface of the upper plate portion 23a, almost the entire surface of the front plate portion 23c excluding the lower end area, and almost the entire surface of the rear plate portion 23d excluding the lower end area, over almost the entire longitudinal range of the first extension portion 23 of the air conditioning duct 2, and this antistatic sheet 1 is attached to the air conditioning duct 2. One example of the size of this antistatic sheet 1 is 14,250 mm.2 The value is not limited to this.

[0028] For example, when the peripheral member 3 existing around the upper plate portion 23a of the air conditioning duct 2 is close to the first extension portion 23 and the antistatic sheet 1 is attached to this upper plate portion 23a, there may be a case where a gap of 5 mm or more cannot be secured between the surface of the antistatic sheet 1 and the peripheral member 3, or a case where the size of the antistatic sheet 1 that can secure a gap of 5 mm or more between the surface of the antistatic sheet 1 and the peripheral member 3 is smaller than the above-mentioned value (e.g., 14250 mm 2 ) and the surrounding components around the second extension portion 24 are not in close proximity to the second extension portion 24 (when the antistatic sheet 1 is attached to the second extension portion 24, a gap of 5 mm or more can be secured between the surface of the antistatic sheet 1 and the surrounding components), the antistatic sheet 1 will be attached to the second extension portion 24.

[0029] -Explanation of antistatic sheet- The electrostatic charge removing sheet 1 will be described below with reference to Fig. 3. Fig. 3 is a perspective view of the electrostatic charge removing sheet 1. The electrostatic charge removing sheet 1 according to this embodiment has a front surface SU and a back surface LI. Each of these will be described below.

[0030] (Description of the outer material) The surface material SU of the antistatic sheet 1 according to this embodiment is a nonwoven fabric 50 containing conductive fibers 51 as a base material.

[0031] The conductive fiber 51 is a fiber having electrical conductivity. In this embodiment, a core-sheath conductive fiber having an electrical conductivity at the core of the fiber, a metal-plated fiber having an electrical conductivity at the surface of the fiber, a metal fiber having electrical conductivity itself, or the like can be used. As the core-sheath conductive fiber, a general-purpose product can be used, and examples of the general-purpose product include Corebrid (manufactured by Mitsubishi Chemical Corporation) and Clacarbo (manufactured by Kuraray Co., Ltd.). As the metal-plated fiber, a general-purpose product can be used, and examples of the general-purpose product include AGPOS (manufactured by Mitsufuji Co., Ltd.) and Odex (manufactured by Osaka Electric Industry Co., Ltd.). As the metal fiber, a general-purpose product can be used, and examples of the general-purpose product include stainless steel wool (manufactured by Nippon Glass Fiber Industry Co., Ltd.) and metal wool (manufactured by J-W-Tex Co., Ltd.). When the conductive fiber 51 is a core-sheath conductive fiber, the sheath covering the core can have the same composition as the fiber constituting the nonwoven fabric 50, and the conductive fiber 51 can be made inconspicuous, and the antistatic sheet 1 can be made uniform.

[0032] In this embodiment, the thickness of the conductive fiber 51 can be 0.5 to 20 dtex in terms of fineness (dtex) which is the weight of 10,000 m of the fiber. This is because the conductive fiber 51 can have many ends and can have excellent charge removal efficiency. If the fineness of the conductive fiber 51 is less than 0.5 dtex, the conductive fiber 51 can have many ends, but the production efficiency may be poor due to the thinness. On the other hand, if the fineness of the conductive fiber 51 exceeds 20 dtex, the conductive fiber 51 cannot have many ends and can have poor charge removal efficiency. In another embodiment, the fineness of the conductive fiber 51 can be 1 to 10 dtex, and in yet another embodiment, the fineness of the conductive fiber 51 can be 2 to 5 dtex. The fineness of the conductive fiber 51 described above is not limited to this, and even if the fineness is outside these ranges, it is possible to exhibit the charge removal effect.

[0033] In this embodiment, the length of the conductive fiber 51 can be 20 to 100 mm. This is because the efficiency of charge removal can be excellent. If the length of the conductive fiber 51 is less than 20 mm, the nonwoven fabric 50 may not be formed due to the short length. On the other hand, if the length of the conductive fiber 51 exceeds 100 mm, the nonwoven fabric 50 may be difficult to form due to the long length, and the ends of the conductive fiber 51 may become fewer, resulting in poor charge removal efficiency. In another embodiment, the length of the conductive fiber 51 may be 25 to 90 mm, and in yet another embodiment, 30 to 80 mm. The length of the conductive fiber 51 described above is not limited to this, and it is possible to achieve the charge removal effect even if the length is outside these ranges.

[0034] The nonwoven fabric 50 of this embodiment can contain resin fibers 52 in addition to the conductive fibers 51. The resin fibers 52 can be colored with a pigment or the like. If the antistatic sheet 1 is arranged in a position visible to the passenger, the presence of the antistatic sheet 1 can be made difficult to visually recognize by coloring the resin fibers 52 (using a color similar to the background of the position where the antistatic sheet 1 is arranged). In this embodiment, the resin fibers 52 can be polyester fibers, polyolefin fibers, polyamide fibers, acrylic resin fibers, polyvinyl alcohol fibers, or the like. In another embodiment, the resin fibers 52 can be made of polyester resin, which is excellent in strength and water resistance, or in yet another embodiment, PET (polyethylene terephthalate) resin, which is a polyester resin.

[0035] In this embodiment, the thickness of the resin fibers 52 may be 0.5 to 20 dtex in terms of fineness (dtex). This is because the nonwoven fabric 50 formed from the resin fibers 52 can be easily formed. If the fineness of the resin fibers 52 is less than 0.5 dtex, the production efficiency may be poor due to the thinness. On the other hand, if the fineness of the resin fibers 52 exceeds 20 dtex, the texture of the nonwoven fabric 50 may be poor due to the thickness. In another embodiment, the fineness of the resin fibers 52 may be 1 to 10 dtex, and in yet another embodiment, the fineness of the resin fibers 52 may be 2 to 5 dtex. The thickness of the resin fibers 52 described above is not limited to this.

[0036] In this embodiment, the length of the resin fibers 52 may be 20 to 100 mm. This is because the nonwoven fabric 50 can be easily formed. If the length of the resin fibers 52 is less than 20 mm, the nonwoven fabric 50 may not be formed due to the short length. On the other hand, if the length of the resin fibers 52 exceeds 100 mm, the nonwoven fabric 50 may be difficult to form due to the long length. In another embodiment, the length of the resin fibers 52 may be 25 to 90 mm, and in yet another embodiment, 30 to 80 mm. The length of the resin fibers 52 described above is not limited to this.

[0037] The static charge removal sheet 1 of this embodiment may have a resin-impregnated layer 53 on the surface side of the nonwoven fabric 50. This can suppress the surface of the static charge removal sheet 1 from fraying. The resin-impregnated layer 53 can be formed by impregnating the surface side of the nonwoven fabric 50 with a synthetic resin. In this embodiment, the synthetic resin may be an acrylic resin, an epoxy resin, a vinyl acetate resin, or the like, as the composition of the synthetic resin. In another embodiment, the synthetic resin may be an acrylic resin having excellent weather resistance. In this embodiment, the synthetic resin may be in the form of a non-diluted resin, an organic solvent dispersion resin, or a water-dispersed resin (emulsion resin). In another embodiment, the synthetic resin may be a water-dispersed resin that is friendly to the working environment. The resin-impregnated layer 53 formed on the surface side of the static charge removal sheet 1 does not inhibit the conductivity of the static charge removal sheet 1.

[0038] In this embodiment, the Tg (glass transition temperature) of the synthetic resin forming the resin-impregnated layer 53 can be set to -10 to 50°C. This is because the nonwoven fabric 50 having the resin-impregnated layer 53 can be given appropriate flexibility. If the Tg of the synthetic resin is less than -10°C, the nonwoven fabric 50 can be given appropriate flexibility, but the resin-impregnated layer 53 has adhesiveness, and there is a risk that soot or the like will adhere to the resin-impregnated layer 53, making the stains noticeable. On the other hand, if the Tg of the synthetic resin exceeds 50°C, the nonwoven fabric 50 having the resin-impregnated layer 53 becomes hard, and there is a risk that the antistatic sheet 1 cannot be attached to the curved surface of the member to which it is attached (the air conditioning duct 2 in this embodiment). In another embodiment, the Tg of the synthetic resin can be set to 0 to 40°C, and in yet another embodiment, 10 to 30°C. The range of the Tg of the synthetic resin described above is not limited to this.

[0039] (Lining description) The backing LI of the static charge removal sheet 1 according to this embodiment is composed of an adhesive layer 60. The adhesive layer 60 is an adhesive layer for attaching the static charge removal sheet 1 to the surface of the air conditioning duct 2, and may be conductive or non-conductive. If a conductive adhesive is used, if the air conditioning duct 2 is charged, the charge can be discharged from the static charge removal sheet 1 through the adhesive layer 60. The adhesive layer 60 according to this embodiment may be a commercially available product, and examples of commercially available products include conductive double-sided tape CN4490 (manufactured by 3M Japan Ltd.), conductive double-sided tape 9711S (manufactured by 3M Japan Ltd.), conductive aluminum foil double-sided tape 791 (manufactured by Teraoka Seisakusho Co., Ltd.), and conductive copper foil double-sided tape 792 (manufactured by Teraoka Seisakusho Co., Ltd.).

[0040] (Method of manufacturing antistatic sheet) Next, a method for manufacturing the static electricity removing sheet 1 according to this embodiment will be described. The method for manufacturing the static electricity removing sheet 1 includes a carding process in which the fibers (conductive fibers 51, resin fibers 52) used are unraveled to form a web (fibrous sheet), a needle punching process in which the fibers in the formed web are entangled and bonded with tiny needle protrusions to form a nonwoven fabric 50, and a thermocompression process in which an adhesive layer 60 is heat-sealed to the back surface of the formed nonwoven fabric 50. When manufacturing a static electricity removing sheet 1 having a resin-impregnated layer 53 on the front surface side, a resin impregnation process in which a synthetic resin is impregnated into the front surface side of the nonwoven fabric 50 can be provided after the needle punching process or the thermocompression process.

[0041] In the carding process, the raw materials of the nonwoven fabric 50, conductive fibers 51 and resin fibers 52, are mixed in a specific ratio, and the mixed fibers are loosened and arranged in a carding machine to form a sheet-like mass and a web.

[0042] In the needle punching process, needles (a flat plate with countless needles standing at approximately right angles on one side) are pressed against the web formed in the carding process at high speed and repeatedly, and the tiny protrusions of the needles entangle and bond the fibers to form the nonwoven fabric 50. In this embodiment, needle punching can be performed on only one side of the web (the side that will become the back surface of the nonwoven fabric 50). This is because many ends of the conductive fibers 51 are formed on the other side of the web (the side that will become the front surface of the nonwoven fabric 50).

[0043] In the thermocompression bonding step, the adhesive layer 60 is heat-sealed to the back surface of the nonwoven fabric 50, and the adhesive layer 60 is pressure-bonded to the nonwoven fabric 50. The heat sealing can be performed under conditions of a temperature of 90 to 120°C, an actual pressure applied to the sheet of 10 to 100 kPa, and a time of 5 to 60 seconds.

[0044] In the resin impregnation step, a synthetic resin is sprayed onto the surface of the nonwoven fabric 50 that will become the front surface, so that the nonwoven fabric 50 is impregnated with the synthetic resin, thereby forming a resin-impregnated layer 53 .

[0045] The antistatic sheet 1 manufactured in this manner can be easily cut with a cutter knife or the like, and therefore has excellent freedom in shape. When air charged by discharge from electronic components flows into the interior of the vehicle's interior space, the antistatic sheet 1 eliminates static electricity from the air. Specifically, corona discharge occurs between the tip of the conductive fiber 51 contained in the outer material SU (the tip of the conductive fiber 51 protruding from the outer material SU) and the charged air, and electrons (negative polarity) combine with the charge of the air to neutralize the potential. This prevents the vehicle body from becoming charged due to the air being charged in the vehicle interior. In the prior art, while the vehicle is running, both the vehicle body and the air flowing around it are charged with positive polarity, and the repulsive force between them causes the air to peel off from the surface of the vehicle body, causing turbulence in the air flow, which prevents the intended aerodynamic characteristics from being obtained, leading to a deterioration in driving stability, etc. In contrast, in this embodiment, the air inside the vehicle cabin can be de-electrified, thereby suppressing charging of the vehicle body, thereby achieving the intended aerodynamic characteristics, and thereby improving driving stability and fuel consumption rate.

[0046] The antistatic sheet 1 formed from the nonwoven fabric 50 made of fibers can change its shape by elastic deformation and can maintain its original shape unless the elastic limit is exceeded, so it can be repeatedly attached to and detached from the air conditioning duct 2. In other words, the antistatic sheet 1 can be repeatedly attached to and detached from the air conditioning duct 2 while checking the attachment position.

[0047] -Effects of the embodiment- As described above, in this embodiment, the static electricity removing sheet (static eliminator) 1 having a surface material SU made of a nonwoven fabric 50 containing conductive fibers 51 as a base material is disposed so that the surface material SU is constantly in contact with the air inside the instrument panel. Therefore, a large number of terminals of the conductive fibers 51 protrude from the surface material SU, so that a stable and continuous static electricity removing effect can be obtained. As a result, the static electricity of the vehicle body can be suppressed, and a situation in which the aerodynamic characteristics of the vehicle body deteriorate due to static electricity can be avoided, thereby improving the driving stability of the vehicle.

[0048] Furthermore, the inventors of the present invention have already confirmed the above-mentioned effect (improved vehicle handling stability) through sensory tests of driving stability by driving a vehicle with an antistatic sheet 1 attached to the air conditioning duct 2 and a vehicle without an antistatic sheet 1 attached to the air conditioning duct 2.

[0049] In addition, in this embodiment, the antistatic sheet 1 is attached to a part of the outer surface of the air conditioning duct 2. The air conditioning duct 2 is disposed inside the instrument panel, and is a member that is invisible to the passengers. Since the antistatic sheet 1 is attached to such a member, the antistatic sheet 1 is also invisible to the passengers, and thus the appearance of the interior of the vehicle is not deteriorated. Furthermore, the inside of the instrument panel is connected to the interior space of the vehicle through a gap between the instrument panel and other members. In other words, the inside of the instrument panel is a space into which air charged by discharge from electronic components in the interior space can flow. Since the antistatic sheet 1 is disposed in this space, it is possible to eliminate the static electricity of the charged air. Thus, in this embodiment, while the antistatic sheet 1 is disposed in a position that is invisible to the passengers, by using the antistatic sheet 1, it is possible to eliminate the static electricity of the air charged by discharge from electronic components in the interior space of the vehicle, and it is possible to improve the driving stability of the vehicle.

[0050] -Other embodiments- The present invention is not limited to the above-described embodiment, and all modifications and applications within the scope of the claims and equivalents thereto are possible.

[0051] For example, in the above embodiment, the case where the antistatic sheet 1 is attached to a part of the outer surface of the air conditioning duct 2 has been described. The present invention is not limited to this, and the antistatic sheet 1 may be attached to the entire outer surface of the air conditioning duct 2. Furthermore, in addition to the configuration where the antistatic sheet 1 is attached to the outer surface of the air conditioning duct 2, the antistatic sheet 1 may be attached to a part or the entire inner surface of the air conditioning duct 2. When the antistatic sheet 1 is attached to the inner surface of the air conditioning duct 2 in this way, in the inside air circulation mode of the air conditioner, air from the room space is caused to flow into the air conditioning duct 2, so that the amount of contact between the surface material SU of the antistatic sheet 1 and the air per unit time can be increased, and the antistatic effect can be improved.

[0052] In the above embodiment, the antistatic sheet 1 is attached to the air conditioning duct 2, which is a member invisible to the passenger (a member arranged in a space communicating with the passenger compartment). The present invention is not limited to this, and the antistatic sheet 1 may be attached to other members invisible to the passenger, or may be attached to a member visible to the passenger (a member arranged in the passenger compartment). Examples of other members invisible to the passenger include an instrument panel reinforcement and a speaker arranged inside the instrument panel, and the inner surface of the instrument panel. As a result, the surface material SU of the antistatic sheet 1 is constantly in contact with the air in the space communicating with the passenger compartment. Examples of other members invisible to the passenger include the wall material of the luggage compartment, the inner surface of the glove box, and the inner surface of the center console box. In other words, when the antistatic sheet 1 is attached to the inner surface of these boxes, the antistatic sheet 1 is invisible to the passenger when the lid of the box is closed. Examples of members visible to the passenger include members arranged in the passenger compartment of the vehicle (such as interior materials and seats in the passenger compartment). This means that the outer surface SU of the antistatic sheet 1 is in constant contact with the air in the passenger compartment. The antistatic sheet 1 may be attached to both members invisible to the passenger and members visible to the passenger, ensuring a sufficient size for the antistatic sheet 1. [Industrial Applicability]

[0053] INDUSTRIAL APPLICABILITY The present invention is applicable to a static eliminator for a vehicle that can obtain a stable and continuous static elimination effect by removing the static electricity from the air inside a vehicle compartment. [Explanation of symbols]

[0054] 1. Static electricity removal sheet (static eliminator) 2. Air conditioning ducts 3 Peripheral parts 50 Nonwoven fabric 51 Conductive Fiber SU outer material LI Lining

Claims

1. The electrostatic eliminator for a vehicle has at least an outer material and an inner material, the outer material having a base material made of nonwoven fabric containing conductive fibers, and the outer material is arranged so as to be in constant contact with the air in the vehicle's interior space or the air in a space communicating with the interior space.

2. The static eliminator for a vehicle according to claim 1, A static eliminator for a vehicle, which is attached to an air conditioning duct arranged in a space communicating with the passenger compartment.

3. The static eliminator for a vehicle according to claim 1 or 2, A static eliminator for a vehicle, characterized in that the static eliminator is disposed in a position such that a gap of 5 mm or more exists between the outer material and a member disposed around the static eliminator.

Images