JP5215832B2 - Motorcycle seat - Google Patents

Description

The present invention relates to a motorcycle seat, and more particularly to a motorcycle seat used in a state exposed to a hot sun such as a motorcycle or a water bike.

  Conventionally, for example, a motorcycle seat is favorably black in design, and is composed of a synthetic resin, for example, a skin made of polyvinyl chloride, and carbon black as a black pigment dispersed in the skin. .

  The skin using such carbon black as a pigment has the advantage of being inexpensive and chemically stable. However, when a motorcycle is left exposed to hot weather, There was an inconvenience that the skin became hot due to the infrared absorption effect.

Then, the vehicle seat which can prevent heat storage and a temperature rise by mix | blending an infrared reflective pigment with a skin material and reflecting the irradiated infrared rays is proposed (patent document 1).
Moreover, the coloring sheet | seat which can suppress the raise of internal temperature by irradiation of sunlight by reflecting the electromagnetic wave of the infrared wavelength range is proposed (patent document 2).

JP 2001-114149 A JP 2004-314596 A

The vehicle seat described in Patent Document 1 has an effect of suppressing the temperature rise of the vehicle seat left under the sun, but a vehicle seat having a higher effect is desired.
Moreover, although the colored sheet described in Patent Document 2 can be used as a skin material for a vehicle seat, it is insufficient as an effect for suppressing heating of the vehicle seat and has a higher effect. Is desired.

An object of the present invention is to provide a motorcycle seat in which the seating surface of the seat is not easily heated even when exposed to the sun.

The object is achieved, according to the motorcycle seat according to claim 1, the cushion member is disposed on the bottom plate, the cushion material Motorcycle seat formed be coated with an skin material, the skin material an infrared transmission pigment is dispersed, is configured to have either one become more synthetic resin polyvinyl or foamed polyvinyl chloride, with a grain pattern on the seating surface of the skin material, the grain pattern is Consists of a convex part and a concave part, the height difference between the convex part and the concave part is 300 μm or more and 3000 μm or less, and the ratio of the surface area of the convex part to the seating surface of the skin material is 10% or more be solved by der Rukoto 34% or less.

Thus, the skin material is infrared transparent pigment is dispersed, is configured to have either one become more synthetic resin polyvinyl or foamed polyvinyl chloride, with a grain pattern on the seating surface of the skin material, The wrinkle pattern is configured to have a convex part and a concave part, so that the infrared rays irradiated to the skin material of the motorcycle seat are transmitted through the skin material and diffused into the cushion material, and thus are irradiated. The skin material is suppressed from being heated by the infrared rays. In addition, the texture pattern of the skin material has a convex part and a concave part, and the occupant touches only the convex part, thereby reducing the heat flow rate transmitted from the skin material and making it difficult for the occupant to feel hot. doing. Therefore, it is possible to obtain a motorcycle seat that is difficult to feel when the seating surface is hot even when exposed to the sun. Furthermore, by using an infrared transmitting pigment, it is possible to obtain a motorcycle seat in which the effect of reducing the temperature rise on the seating surface and the jetness are improved as compared with the case where an infrared reflecting pigment is used.

Moreover, in this way, the skin material is by Rukoto is configured to have a synthetic resin infrared transmission pigment is dispersed, infrared radiation applied to the skin material for a motorcycle seat is transmitted through the skin material cushion It is suppressed that the skin material is heated by the infrared rays that are diffused and irradiated in the material . Further, difference in height between the raised portion and the depressed portion by the ratio of the surface area of the convex portion 34% or less with respect to and seating surface of the skin material over 300 [mu] m, the heat flux transmitted from the skin material by reducing the area touched occupant directly Decrease, making it difficult for the passengers to feel hot. Therefore, it is possible to obtain a motorcycle seat that is difficult to feel when the seating surface is hot even when exposed to the sun.
Further, as described above, the synthetic resin is made of one of polyvinyl chloride and foamed polyvinyl chloride, so that the infrared transmissive resin can be stably dispersed. The skin material and the two-wheeled vehicle using the skin material The conventional manufacturing method can be used as it is for manufacturing the sheet for use.

In concrete terms, as in claim 2, when the amount of the synthetic resin constituting the surface material and 100, the amount of the infrared transmission pigment is preferable that is 0.3 to 10 .
Thus, when the compounding amount of the synthetic resin constituting the skin material is 100, the infrared ray irradiated to the skin material can be transmitted by setting the compounding amount of the infrared transmitting pigment to 0.3 or more and 10 or less. it can. If the blending amount of the infrared transmitting pigment is less than 0.3, it cannot be colored in a predetermined color, and if the blending amount exceeds 10, the properties of the synthetic resin are greatly changed, resulting in problems in the manufacturing process. The amount is set to 0.3 or more and 10 or less.

According to a third aspect of the present invention, it is preferable that the infrared transmitting pigment comprises at least one of an isoindoline pigment, a beta-type copper phthalocyanine pigment, and a diketopyrrolopyrrole pigment.
As described above, an infrared transmitting pigment is composed of at least one of an isoindoline compound, a beta-type copper phthalocyanine compound, and a diketopyrrolopyrrole compound, thereby obtaining a pigment having excellent infrared transmission characteristics. By coloring with such a pigment, it is possible to obtain a motorcycle seat that is difficult to feel when the seating surface is hot even when exposed to the sun.

According to the present invention, the infrared rays applied to the skin material of the motorcycle seat are transmitted and diffused in the cushion material to prevent the skin material from becoming hot, and the convex portion with respect to the seating surface of the skin material By reducing the ratio of this to a predetermined value or less and reducing the area in direct contact with the occupant, the heat flow transmitted from the skin material is reduced, making it difficult for the occupant to feel hot. Therefore, it is possible to provide a motorcycle seat that is less likely to feel that the seating surface is hot even when exposed to the sun.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. Note that the members, arrangements, and the like described below do not limit the present invention, and various modifications can be made within the scope of the gist of the present invention.

  1 to 8 relate to an embodiment of the present invention. FIG. 1 is a side view of a motorcycle provided with a vehicle seat, FIG. 2 is a perspective view of the vehicle seat, and FIG. AA sectional view, FIG. 4 is a wavelength absorption / transmission characteristic of an infrared absorbing pigment, FIG. 5 is a schematic sectional view of a skin material, FIG. 6 is a measurement result of heat flow velocity, and FIG. is there. FIG. 8 shows the sensory evaluation test results.

  As shown in FIGS. 1 and 2, the vehicle seat S of the present embodiment is a seating seat used for a motorcycle, for example. Note that the vehicle seat S of the present embodiment can be used not only for scooter type motorcycles as shown, but also for large motorcycles. Besides motorcycles, buggies, water bikes, It can be applied as a seat for snowmobiles and open cars. The skin 1 used for the vehicle seat S can also be used as an interior material such as a covering material for a handle of an automobile or a motorcycle or a dashboard of an automobile.

  As shown in FIG. 3, the vehicle seat S includes at least a bottom plate 11, a cushion material 30, and a skin material 40. The vehicle seat S is configured by covering the cushion material 30 disposed on the bottom plate 11 with the skin material 40 and fixing the end of the skin material 40 to the back side of the bottom plate 11. Note that the vehicle seat S is not limited to a single seat as shown in the present embodiment, and may be a seating seat for two people.

  The bottom plate 11 is made of a hard resin in order to obtain a predetermined strength, and is, for example, injection molded with polypropylene. A hinge (not shown) is provided on the back surface of the bottom plate 11 as a connecting portion to the vehicle side. By this hinge part, the vehicle seat S is configured to be openable and closable with respect to a storage part (not shown) provided on the vehicle body side.

  The cushion material 30 is made of a flexible foam material made of, for example, urethane foam, PP (polypropylene) foam, or PE (polyethylene) foam. Moreover, it is good also as a structure using the foam formed from the mixture of a fiber cushion or a urethane chip | tip and a thermosetting binder.

The skin material 40 has a skin 1 disposed on the seating surface side of the vehicle seat S, and a base fabric 8 made of knitted fabric attached to the back side thereof with an adhesive.
On the surface of the skin 1 (the surface on the seating surface side), a texture pattern M is formed by combining the concave portions 4 and the convex portions 5.
Epidermis 1 is a synthetic resins or we constructed a synthetic resin layer to the polyvinyl chloride as a main component. The infrared transmission Pigments are blended in synthesis resins.

Polyvinyl chloride is made from formulations shown in Table 1, which is a reinforcing composition for protection of infrared transmission Pigment. The blending amount means a value proportional to the blended weight. Polyvinyl chloride may be a foam, and a woolen nylon cloth or the like can be used as the base cloth. The polyvinyl chloride and the polyvinyl chloride foam are transparent or white, and both have high infrared transmittance.

Infrared transmission Pigments black is in a black by mixing infrared transmission pigment three primary colors. Specifically, three types of pigments, CROMOPHTAL Yellow 2RLTS (yellow pigment), CROMOPHTAL Blue 4GNP (blue pigment), and IRGAZIN DPP rubine TR (red pigment), manufactured by Ciba Specialty Chemicals Co., Ltd., are mixed to transmit black infrared rays. constitute the face fee. In the present embodiment, the amount of infrared transmission Pigments for polyvinyl chloride 100 is set to 1.

It will now be described infrared transmission pigment three primary colors constituting the infrared transmitting Pigments black.
CROMOPHTAL Yellow 2RLTS, which is a yellow pigment, is a powder pigment whose main component is an isoindolinone pigment, and CROMOPHTAL Blue 4GNP, which is a blue pigment, is a powder pigment whose main component is a beta-type copper phthalocyanine pigment, and a red pigment IRGAZIN DPP Rubin TR is a powder pigment mainly composed of a diketoropyrrolopyrrole pigment. These compounds all belong to polycyclic pigments and have excellent infrared transmission characteristics.

In the present embodiment, the amount of infrared transmission Pigments for polyvinyl chloride 100 a is set to 1, but the amount can be adjusted arbitrarily within a range of 0.3 to 10. Amount of infrared transmission Pigment needs to be 0.3 or more because it becomes difficult to colored black is less than 0.3. On the other hand, if the blending amount exceeds 10, the properties of the polyvinyl chloride change, causing problems in the manufacturing process, so the blending amount is set to 10 or less. In addition, an infrared transmitting pigment having an arbitrary color can be produced by adjusting the blending amounts of the three primary color infrared transmitting pigments.

Showing wavelength absorption / transmission characteristics of the infrared transmission Pigments used in the present embodiment in FIG. For comparison, FIG. 4 also shows the wavelength absorption / transmission characteristics of carbon black and perylene pigment.
From FIG. 4, while the carbon has been used as a conventional pigment black, the transmittance T showed the transmittance T of about 10% or less in the entire wavelength range measured, infrared transmission Pigments is approximately wavelength The transmittance T in the wavelength region of λ = 680 nm or more shows a value of 90% or more. Here, the wavelength λ belonging to the range of about 700 nm to 10,000 nm is infrared.

In addition, perylene pigments conventionally used as polycyclic pigments show good transmittance in the wavelength region of wavelength λ = 750 nm or more, but the infrared transmittance between wavelengths of 680 to 750 nm is low. Show. Accordingly, the infrared transmission Pigments can be transmitted most of the wavelength λ of the infrared region. Of course, it has excellent infrared transmission properties regardless mixing ratio as long as the pigment consisting of infrared transmitting pigment constituting the infrared transmission Pigments.

Moreover, since synthetic resin infrared transmission Pigment is dispersed in a high infrared transmittance, infrared radiation applied to the skin 1 is transmitted through the epidermis 1, and passes between the base cloth 8 made of knitted cushion member 30 To be absorbed. Therefore, since the infrared rays irradiated on the surface of the sheet S pass through the skin 1, the surface of the sheet S is not heated, and it is possible to suppress the surface of the vehicle sheet S left under the hot sun from being heated. . On the other hand, since most of visible light (wavelength λ = 350 to 700 nm) is not transmitted, the sheet S can be colored in an arbitrary color. This is schematically shown in FIG. In the present embodiment using the infrared transmission Pigments black described above.

Since infrared transmission Pigments to confirm the effect of the skin 1 dispersed was measured the amount of heat change transmitted from the epidermis 1. 6, the relationship between the elapsed time and the heat flux from the time of contact, the epidermis 1 infrared transmission Pigment is dispersed (infrared transparent pigment dispersion epidermis) and the conventional skin which carbon black is dispersed (carbon black dispersed epidermis) It is the result of having measured. A contact temperature detection sensor described later was used for the measurement of the heat flow rate. For the measurement, an epidermis in which the texture pattern M was not formed was used. After irradiating the skin with dispersed infrared permeable pigment (infrared transmissive pigment dispersed skin) and the skin with carbon black dispersed (carbon black dispersed skin) for each specified time, the contact temperature detection sensor is brought into contact to determine the heat flow rate. It was measured.

According to the measurement result of the heat flow rate in FIG. 6, both the infrared transmitting pigment dispersed skin and the carbon black dispersed skin are 0.1 to 0.2 seconds after the contact temperature detection sensor comes into contact with the non-measured skin. The heat flow rate Q later shows the maximum value (Q-MAX value). When compared with the Q-MAX value, the infrared transmission pigment dispersion skin is 0.46 [J / cm ² · s], whereas the carbon black dispersion skin is 1.38 [J / cm ² · s]. In addition, the infrared-transmitting pigment-dispersed skin has a Q-MAX value that is reduced to about ３ compared to the conventional skin. That is, the heat flux by dispersing the infrared transmission Pigments in the skin 1 can be reduced greatly, can greatly reduce the heat of the felt by an occupant when touched epidermis 1.

Next, the texture pattern M applied to the surface of the skin 1 will be described.
The wrinkle pattern M expresses a texture by attaching irregularities to the surface of the epidermis 1, and includes a concave portion 4 and a convex portion 5. The weight of the passenger seated on the seat S is supported by the convex portion 5 of the texture pattern M. Therefore, the occupant feels the heat of the sheet S mainly by the heat transmitted from the convex portion 5. On the other hand, when the height difference between the concave portion 4 and the convex portion 5 of the texture pattern M is sufficiently large, the occupant does not come into contact with the concave portion 4, so that the heat inflow from the concave portion 4 is reduced. Therefore, the heat that flows from the convex portion 5 to the passenger side is diffused to a position facing the concave portion 4. That is, the heat perceived by the occupant varies depending on the shapes of the concave portion 4 and the convex portion 5 that form the texture pattern M.

Here, an epidermis 1 having four kinds of grain patterns M (M1, M2, M3, M4) was made as an experiment, and a sensory evaluation test was performed in which the heat perceived by the occupant was measured in a pseudo manner. Epidermis 1 formed with the emboss pattern M is obtained by dispersing an infrared transmission Pigments described above.
FIG. 7 is a schematic diagram of the structural unit of the texture pattern, and FIG. 8 shows the sensory evaluation test results. 7A is a front view of a texture pattern, and FIG. 7B is a cross-sectional view taken along line BB in FIG. 7A.

  The texture pattern M (M1, M2, M3, M4) formed on the surface of the test skin will be described. As shown in FIGS. 7 (a) and 7 (b), the texture pattern M (M1, M2, M3, M4) is configured by arranging the constituent units composed of the convex portions 5 and the concave portions 4 in the vertical and horizontal directions. ing. The structural unit has a size of 3 mm × 3 mm, and includes a substantially square-shaped recess 4 and a protrusion 5 formed continuously on the left and upper sides of the recess 4. In this structural unit, by changing the ratio of the size of the convex portion 5 and the concave portion 4, the area ratio R of the convex portion 5 is changed to form four kinds of embossed patterns M1, M2, M3, and M4. Three types (100, 200, and 300 μm) of different types of wrinkle patterns M1, M2, M3, and M4 having different height differences (texture depths) h between the convex portions 5 and the concave portions 4 were produced.

Each of the embossed patterns M1, M2, M3, and M4 will be specifically described.
The embossed pattern M1 is formed such that the area of the convex part 5 is 6.25 mm ² and the concave part 4 is 2.75 mm ² (approximately 1.66 mm × 1.66 mm). The area of the convex portion 5 in the texture pattern 1M is approximately 70%.
Grain pattern M2 is the area of the projection 5 with respect to 5.94 mm ^2, is formed a recess 4 as 3.06 mm ² (approximately 1.75 mm × 1.75 mm). The area of the convex part 5 in the embossed pattern M2 is approximately 66%.

The embossed pattern M3 is formed such that the area of the convex part 5 is 3.06 mm ² and the concave part 4 is 5.94 mm ² (approximately 2.44 mm × 2.44 mm). The area of the convex part 5 in the embossed pattern M3 is approximately 34%.
Grain pattern M4 is the area of the projection 5 with respect to 2.75 mm ^2, is formed a recess 4 as 6.25mm ² (2.5mm × 2.5mm). The area of the convex portion 5 in the texture pattern M4 is approximately 31%.
For each of the texture patterns M1, M2, M3, and M4, a pattern in which the height difference h between the convex portion 5 and the concave portion 4 is adjusted to 100, 200, and 300 μm is prepared. The epidermis was subjected to a sensory evaluation test.

A contact temperature detection sensor (a finger robot thermolab KES-F7 manufactured by Kato Tech Co., Ltd.) used in the sensory evaluation test will be described.
This contact temperature detection sensor can detect the maximum value (Q-MAX value) of the heat flow rate after the contact sensor portion (measurement surface) is brought into contact with the skin 1 (measurement object). By making the temperature difference between the measurement object and the measurement surface constant, quantitative measurement can be performed. In this embodiment, the measurement object (the surface of the epidermis 1) was irradiated with a light beam equivalent to sunlight, while the contact sensor portion was measured as the surface temperature of the skin.

Since the human body perceives heat by the heat flow rate flowing into the nerve near the skin surface, such measurement can obtain data approximate to the heat perceived by the occupant.
In addition, the measurement surface of the contact temperature detection sensor is a substantially circular shape with a diameter of about 10 mm covered with silicon rubber, and includes a temperature sensor. The maximum value (Q-MAX value) of the heat flow rate can be calculated from the temperature history when the measurement surface is pressed against the non-measurement object (texture pattern M).

According to the Q-MAX value measured by this contact temperature detection sensor, when it is 0.90 or more, it feels “heat that cannot be tolerated”, and if it is 0.65 to 0.90, the passenger can tolerate it. The passenger feels "hot", and if it is 0.50 to 0.65, the passenger perceives it as "warm".
According to the sensory evaluation test results shown in FIG. 8, the Q-MAX value was less than 0.90 in all the test skins even though the temperature of the skin 1 was 70 ° C., and the texture pattern M was formed. The effect is appearing.
Furthermore, with the embossed pattern M3 and the embossed pattern M4, a Q-MAX value of less than 0.65 was recorded in the test epidermis having an embossed depth of 300 μm.

  Since the heat is transmitted from the contacted part, the maximum value (Q-MAX value) of the heat flow rate flowing from the epidermis is considered to be smaller as the proportion of the convex part 5 is smaller or the grain depth is deeper. It is done. In the sensory evaluation test result shown in FIG. 8, since the Q-MAX value of less than 0.65 was measured in the skin 1 with a texture depth of 300 μm of the texture pattern M3, at least the texture depth of 300 μm or more It is considered that the same result is obtained in the skin 1 in which the ratio of the convex portion 5 to the surface of 1 is 34% or less.

That is, in the skin 1 in which the surface depth of the sheet S rises under the hot sun in the skin 1 where the depth of the embossed surface is 300 μm and the ratio of the convex portion 5 to the surface of the skin 1 is 34% or less, the sensible temperature of the passenger is “warm” level. Can be suppressed.
The embossing depth can be further increased according to the thickness of the skin 1, but it is desirable to set the value to 3 mm (3000 μm) or less in consideration of workability in the manufacturing process. Moreover, although the maximum value of a heat flow rate falls, so that the ratio of the convex part 5 is small, since it will become difficult to support a passenger | crew's weight if it is too small, it is desirable to set it as a value about 10% or more.

In sensory evaluation test results of Figure 8, because of the constant surface temperature of the skin 1 and 70 ° C., the effect of infrared transmission Pigments are difficult measurement conditions are exhibited. Therefore, when the sheet S according to the present embodiment is actually left under the hot sun, it is considered that an effect higher than the test result shown in FIG. 8 appears. Specifically, by incorporating the epidermis 1 infrared transmission Pigments as a pigment, for a number of infrared raising the surface temperature of the sheet S can be transmitted to the inner side of the sheet S, the surface temperature of the skin 1 Can be suppressed.

Thus, the formulation to the epidermis 1 of infrared transmitting Pigments, effectively lowering the effect of suppressing the increase in the surface temperature of the skin 1, the heat of the perception of the occupant by the synergistic effect with the effect of reducing the effective temperature by grain pattern M Can be made.
Further, in the present embodiment, the texture pattern M is formed in the shape shown in FIG. 7, but the same effect can be obtained regardless of the shape of the pattern as long as it is a pattern composed of the convex portion 5 and the concave portion 4 such as leather texture. Have. Of course, the same effect can be obtained by forming the texture pattern M not only from the two-layer pattern of the convex portion 5 and the concave portion 4 but also from a pattern composed of multiple stages or a rounded pattern.
As described above, according to the vehicle seat S of the present invention, the surface does not become hot even when left under the hot sun.

Further, by using the infrared transmission Pigments, as compared with the case of using the infrared reflective pigment, they are advantageous in terms of heating reduction. Specifically, the infrared reflective pigments, than ordinary pigment (carbon black), a surface temperature while having an effect of lowering as 10 to 15 ° C., infrared transmission Pigments are the surface temperature decreased 15 to 20 ° C. It has a greater reduction effect.
Furthermore, infrared transmissive Pigments, rather than infrared reflective pigment is easy to increase the absorption of visible light, it is possible to improve the jet-blackness.

1 is a side view of a motorcycle including a vehicle seat according to an embodiment of the present invention. 1 is a perspective view of a vehicle seat according to an embodiment of the present invention. It is AA sectional drawing of FIG. 2 which concerns on one Embodiment of this invention. It is a wavelength absorption / transmission characteristic figure of the infrared absorption pigment which concerns on one Embodiment of this invention. It is a cross-sectional schematic diagram of the skin material which concerns on one Embodiment of this invention. It is a measurement result of the heat flow rate concerning one embodiment of the present invention . It is a schematic diagram of the structural unit of the embossed pattern which concerns on one Embodiment of this invention. It is a sensory evaluation test result concerning one embodiment of the present invention.

S Vehicle seat M, M1, M2, M3, M4 Wrinkle pattern h Wrinkle depth (height difference between convex part and concave part)
1 skin 4 recess 5 protrusions
8 base cloth 11 Bottom plate 30 Cushion material 40 Skin material

Claims (3)

The cushion material is disposed on the bottom plate, the cushion material Motorcycle seat formed be coated with an skin material,
The skin material is configured to have a synthetic resin made of either polyvinyl chloride or foamed polyvinyl chloride in which an infrared transmitting pigment is dispersed, and has a texture pattern on the seating surface of the skin material,
The wrinkle pattern is configured to have a convex portion and a concave portion, the height difference between the convex portion and the concave portion is 300 μm or more and 3000 μm or less, and the surface area of the convex portion with respect to the seating surface of the skin material. ratio of 10% or more, a motorcycle seat, wherein der Rukoto 34% or less. When the amount of the synthetic resin constituting the surface material and 100, a motorcycle seat according to claim 1 in which the amount of the infrared transmission pigment is characterized in that 0.3 to 10. The infrared transmission pigment, isoindoline pigment, beta type copper phthalocyanine pigment, a motorcycle seat according to claim 1 or 2, characterized in that it consists of wearer's own hair Toro pyrrolo pyrrole pigment, any one or more of .

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