JP2007330459A - Vehicle seat pad - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicle seat pad which is excellent in air permeability and comfortableness in seating a person, and which can be easily manufactured. <P>SOLUTION: A cushion pad of the vehicle seat pad 10 is composed of a pad body 20, a filling body 30 fitted to a recess 24 of the pad body 20, and a highly-permeable body 40 disposed inside an empty chamber 35. Both sides of the seat surface of the pad body 20 are provided with vacancies 27, each of which penetrates down to the ceiling surface of the recess 24 from the seat surface. At the center of the filling body 30, a penetration hole 33 is provided as a vertically penetrating part. A warm or cool air can be blown from the vacancies 27. A highly-permeable slab urethane foam or fiber mold can be used as the highly-permeable body 40. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a vehicle seat pad, and more particularly to a vehicle seat pad including a pad body provided with a recess recessed upward from the bottom surface, and an insertion body inserted into the recess. .

  A seat pad such as a vehicle seat pad is generally made of a foamed material such as a flexible polyurethane foam or a semi-rigid polyurethane foam (for example, JP-A-11-34710).

  In order to improve the air permeability in the vicinity of the seat surface of such a seat pad, a groove is provided in the seat surface of the seat pad main body, and a thin foam layer is put on the seat pad main body to form the groove as a tunnel-like air passage. However, if this is done, the air passage is hollow, so when sitting on the seat pad, the air passage near the air passage will be crushed and deformed so that the occupant feels a sense of unevenness. become.

  The applicant of the present application is a seat pad made of foamed resin foam as a seat pad having excellent breathability, sitting comfort, and riding comfort, and has an air passage that communicates with the outside. In the seat pad extended in the above, the air passage has been proposed as a seat pad made of foamed resin foam subjected to film removal treatment. In this seat pad, an air passage made of foamed resin foam subjected to film removal treatment is integrally formed with the seat pad, one end of the air passage faces the seating surface of the seat pad, and the other end of the air passage is It faces the bottom of the seat pad.

Since this seat pad has an air passage communicating with the outside, moisture and heat can be discharged. Since this air passage is not a cavity but is made of a foamed resin foam that has been subjected to film removal treatment, there is no sense of foreign matter when sitting, and the cushioning properties of the seat pad and seat are also good.
JP 11-34710 A JP 2006-42985 A

  The vehicle seat pad disclosed in Japanese Patent Application Laid-Open No. 2006-42985 is manufactured by setting a foamed resin foam for forming an air passage in a mold and molding the vehicle seat pad by urethane foam molding. Since the foam sometimes shifted and moved, it was not easy to manufacture. Further, the foam may be impregnated with urethane during foam molding, and the air permeability of the foam may be impaired.

  An object of the present invention is to solve such problems of the prior art, and to provide a vehicle seat pad that is excellent in air permeability and sitting comfort and that is easy to manufacture.

  The vehicle seat pad according to claim 1 is a vehicle seat pad comprising: a pad main body provided with a recess recessed upward in the bottom surface portion; and an insertion body inserted into the recess. A vacant space is provided between the ceiling surface of the recess and the upper surface of the insertion member, a highly breathable body is disposed in the vacant chamber, and the vacant space is disposed on the pad main body. A vent portion communicating with the seat surface is provided, and a communicating portion is provided in the insertion body for communicating the empty space with the bottom surface of the vehicle seat pad.

  According to a second aspect of the present invention, there is provided a vehicle seat pad comprising: a pad main body provided with a recess recessed downward in the upper surface portion; and an insertion body inserted into the recess. A vacant space is provided between the bottom surface of the recess and the lower surface of the insertion body, and a highly breathable body is disposed in the vacancy chamber, and the vacancy is disposed on the insertion body in the pad main body. A vent portion communicating with the seat surface is provided, and a communicating portion is provided in the pad main body for communicating the empty space with the bottom surface of the vehicle seat pad.

  A vehicle seat pad according to a third aspect of the present invention is the vehicle seat pad according to the first or second aspect, wherein the communication portion is formed of a through hole.

  The vehicle seat pad according to claim 4 is a vehicle seat pad in which a pad body is mounted on a pan frame, and a recess that is recessed upward is provided on a bottom surface portion of the pad body. A highly breathable body is disposed in the interior, and the pad body is provided with a ventilation portion that communicates the inside of the recess with the seating surface of the pad body, and the interior of the recess is disposed on the bottom surface of the vehicle seat pad. A communication portion that communicates is provided.

  The vehicle seat pad according to claim 5 is characterized in that, in claim 4, the communication portion is an opening.

  A vehicle seat pad according to a sixth aspect is the vehicle seat pad according to any one of the first to fifth aspects, wherein a plurality of holes are provided as the ventilation portion.

  A vehicle seat pad according to a seventh aspect of the present invention is the vehicle seat pad according to any one of the first to sixth aspects, wherein the ventilation portion is disposed at a position shifted from a position vertically above the communication portion. is there.

  A vehicle seat pad according to an eighth aspect of the present invention is the vehicle seat pad according to any one of the first to seventh aspects, wherein the highly breathable body is made of a highly breathable slab urethane foam.

  A vehicle seat pad according to a ninth aspect of the present invention is the vehicle seat pad according to any one of the first to seventh aspects, wherein the highly breathable body is formed of a molded body of loop-like fibers.

  A vehicle seat pad according to a tenth aspect is characterized in that, in the ninth aspect, the fibers are made of a thermoplastic elastic resin, and the contact portions of the fibers are heat-sealed.

  The vehicle seat pad according to an eleventh aspect is the vehicle seat pad according to any one of the first to seventh aspects, wherein the highly breathable body is formed of a knitted body in which fibers are knitted in three dimensions.

  A vehicle seat pad according to a twelfth aspect of the present invention is the vehicle seat pad according to any one of the first to eleventh aspects, wherein the vacant space is provided at least below the bottom of the bottom.

  In the vehicle seat pad of the present invention, a highly breathable body is disposed in a vacant chamber formed by a recess in the upper surface or the bottom surface of the pad main body, and the vacant chamber communicates with the seat surface by a vent. Therefore, it is possible to perform heating or cooling by circulating warm air or cold air from the lower side of the seat through the communicating portion, the highly breathable body in the empty room, and the vent portion to the upper surface of the seat.

  In the present invention, since the ventilation portion communicates with the vacant chamber and the highly permeable body is disposed in the vacant chamber, air can be uniformly supplied to each ventilation portion.

If grooves are provided on the ceiling or bottom surface of the recess instead of vacancies, it is necessary to provide a number of grooves in order to supply air to each ventilation section. Although it is necessary to take measures for evenly distributing the air to the end, in the present invention employing the vacant chamber and the highly permeable body arranged in the vacant chamber, a large number of ventilation portions are provided. However, it is possible to reliably supply air uniformly to each ventilation portion. Further, when a groove is provided in a pad of flexible urethane foam, molding defects are likely to occur.
On the other hand, in the present invention, since the highly breathable body is disposed in the vacant room, the air flowing into the vacant room from the communication part is located not only from the ventilation part closest to the communication part but also from the communication part. Air is sufficiently supplied to the ventilation part. In the present invention, it is not necessary to provide a large number of grooves in the pad, and molding defects can be prevented.

  In the present invention, since the highly air-permeable body is disposed in the vacant room, even if the user sits on the area where the vacant room is provided, the vacant room is not deformed so as to be crushed, and the seating feeling is good.

  In the present invention, the highly breathable body is inserted and disposed in the recess, and the highly breathable body is not integrally formed with the pad main body, so that the vehicle seat pad can be easily manufactured.

  Hereinafter, embodiments will be described with reference to the drawings.

  FIG. 1 is a plan view of a vehicle seat pad according to an embodiment, and FIGS. 2 and 3 are sectional views taken along lines II-II and III-III of FIG.

The cushion pad of the vehicle seat pad 10 includes a pad main body 20, an insertion body 30 fitted in the recess 24 of the pad main body 20, and a highly breathable body 40 disposed in the empty space 35. Become. This vacancy is formed between the upper surface of the insert 30 and the ceiling surface of the recess 24. The entire interior of the vacant space 35 is occupied by the highly breathable body 40. This cushion pad is assembled by putting the highly breathable body 40 into the recess 24 of the pad main body 20 and then pushing the insertion body 30 into the recess 24. A vehicle seat pad 10 is configured by attaching an epidermis to the cushion pad.
In addition, the insertion body 30 and the high air permeability body 40, or the high air permeability body 40 and the pad main body 20 may be assembled | attached previously by adhesion | attachment. Moreover, you may provide the uneven | corrugated shaped part for the positioning in the case of this combination.

  The pad main body 20 includes a bottom part 21, a thigh part 22, a side part 23, and a bottom recess 24.

  The recess 24 is recessed upward from the bottom surface of the pad body 20 below the bottom part 21. In this embodiment, the planar view shape of the recess 24, the insertion body 30, and the highly air permeable body 40 is a square, but is not limited thereto.

  On the upper surface of the pad main body 20, there are provided a longitudinal groove 25 and a lateral width 26.

  In the case where a soft urethane having a thickness of 5 mm or more or a similar material is used as a cover material on a vehicle seat pad that places importance on cushioning or a seat pad, the pad body 20 is made of a low-density material and is inserted. It is preferable to use a high performance material as a constituent material of the filler 30.

In that case, as a constituent material of the cushion pad body 20, a polyurethane foam having a core density of 25 to 50 kg / m ³ and a 25% hardness of 15 to 25 kgf / φ200 is desirable, and the insert 30 has a core density of 45 to 70 kg / m ³ , A polyurethane foam having a 25% hardness of 16 to 30 kgf / φ200 is desirable.

On the other hand, in the case of a cushion pad that requires a soft feeling on the surface or a seat pad that aims to improve the initial seating feeling, the constituent material of the pad body 20 includes a core density of 40 to 70 kg / m ³ , 25% hardness 8 A polyurethane foam having a density of ˜20 kgf / φ200 is desirable, and the insert 30 is preferably a polyurethane foam having a core density of 25-55 kg / m ³ and a 25% hardness of 16-30 kgf / φ200.

  As the highly breathable body 40, those having an air permeability measured by the method A of JIS K-6400-7 of 100 mL / sec or more, particularly 500 to 2000 mL / sec are preferable, and specifically, such an air permeability is provided. Suitable slab urethane foam (urethane foam cut out from a foamed urethane foam into a plate shape) and a fiber molded body are suitable.

  In the case of slab urethane foam, the core density and 25% hardness are preferably the same as or intermediate between the values of the pad body 20 and the insert 30.

As a fiber of a fiber molded object, what consists of thermoplastic elastic resins, such as a polyester-type elastomer or a polyurethane-type elastomer which is loop shape with the thickness of about 300-5000 denier, is suitable. As the fiber molded body, a three-dimensional network structure having an apparent density of about 0.005 to 0.20 g / cm ³ by fusing the contact portions between the thermoplastic elastic resin fibers is preferable. .
The fiber molded body may be a fiber knitted body.

  The thickness of the highly air-permeable body 40 (the vertical dimension of the vacant space 35) is preferably about 5 to 40 mm, particularly about 15 to 25 mm.

  In this vehicle seat pad, the length of the recess 24 and the insertion body 30 in the front-rear direction is 150 to 500 mm, particularly 200 to 400 mm, and the depth of the recess 24 is the seat pad 20 in the bottom part 21. The thickness is preferably 30 to 90%, particularly 60 to 80%.

  In this embodiment, the insertion body 30 and the recess 24 have an inversely tapered shape that decreases toward the lower side, whereby the insertion body 30 is firmly held in the recess 24. Note that the insertion member may be formed larger than the recess, and may be elastically contracted and fitted and held in the recess. Moreover, the insertion body 30 may be adhere | attached on the inner surface of the recess 24, and may be fastened with a suitable fastener.

  In this embodiment, the ceiling surface of the recess 24 of the pad main body 20 is flat. Holes 27 penetrating from the seating surface to the ceiling surface of the recess 24 are provided on the left and right sides of the bottom of the pad body 20. In this embodiment, a plurality of holes 27 are provided on each of the left and right of the bottom of the bottom.

  Since the seat pad is a cushion pad with an epidermis attached, the air holes 27 are indicated by broken lines in FIG. This skin is made of a breathable material such as a woven fabric.

A through hole 33 is provided at the center of the insertion body 30 as a communicating portion that penetrates vertically. In this embodiment, only one through hole 33 is provided, but a plurality of through holes 33 may be provided.
In this embodiment, each hole 27 is arranged at a position shifted from a position vertically above the through hole 33.

  In the vehicle seat pad 10 configured as described above, since the highly breathable body 40 is disposed in the entire interior of the vacant space 35, the vacant space 35 is deformed so as to be crushed when a passenger is seated. The seating feeling is good. In addition, since the thickness of the pad main body 20 between the ceiling surface of the recess 24 and the seat surface of the seat pad 10 is sufficiently large, a foreigner feeling of the highly breathable body 40 is not sensed by the seated person, The seating feeling is good.

  In this embodiment, the through hole 33 and the hole 27 communicate with each other through the highly air permeable body 40 in the empty room 35. Therefore, when hot air or cold air is supplied into the through-hole 33 from an air conditioner (not shown) or the like, the hot air or cold air flows upward from the air holes 27, and the passenger can be heated or cooled.

  In this embodiment, since the highly permeable body 40 is disposed in the vacant space 35, the air from the through holes 33 is dispersed by the highly permeable body 40 and is uniformly distributed and supplied to the respective holes 27. The If the highly air permeable body 40 is not present, a large amount of air from the through hole 33 flows out from the hole 27 in the vicinity of the through hole 33, and the air from the hole 27 becomes farther away from the through hole 33. Although the air outflow amount tends to be small, since the highly permeable body 40 is distributed, the difference in the air distribution amount to each hole 27 is small, and air is almost evenly distributed from each hole 27. leak.

In this embodiment, since the highly air permeable body 40 exists over the entire upper surface of the recess 24, the hole 27 can be provided at any position on the ceiling surface of the recess 24. Even if a very large number of air holes are provided, air is uniformly supplied to the air holes 27.
In this embodiment, since each hole 27 is disposed at a position shifted from directly above the through hole 33, the air from the through hole 33 does not directly radiate the hole 27, and the air hole 27 is directed to each hole 27. The air supply is equalized.

  In this embodiment, since the lower surface side of the highly air permeable body 40 is covered with the insertion body 30, the highly air permeable body 40 is not directly touched by the S spring of the sheet or the like.

  FIG. 4 is a longitudinal sectional view in the left-right width direction of a vehicle seat pad 10A according to another embodiment, and FIG. 5 is a sectional view taken along the line V-V in FIG.

  In this embodiment, the insertion body 30 is omitted, and the highly air permeable body 40 </ b> A is disposed in the entire recess 24. A pan frame 50 is disposed along the bottom surface of the pad main body 20 and the highly air-permeable body 40A. That is, the pad main body 20 in which the highly breathable body 40 </ b> A is inserted into the recess 24 is installed on the pan frame 50. In the pan frame 50, an opening 51 as a communication portion is provided at a position facing the vicinity of the center of the bottom surface of the highly breathable body 40A.

  The other configuration of this embodiment is the same as that of the above embodiment. The same reference numerals indicate the same parts. The characteristics and material of the highly breathable body 40A are the same as those of the highly breathable body 40.

  In this embodiment, when air is sent from the opening 51, the air is uniformly supplied to the air holes 27 via the highly breathable body 40A. In this embodiment, the same effect as that of the embodiment shown in FIGS. In addition, since the lower surface of the highly air permeable body 40A is covered with the pan frame 50, the highly air permeable body 40A is not directly touched and caught by the S spring of the sheet.

  FIG. 6 is a longitudinal sectional view in the left-right width direction of a vehicle seat pad 10B according to still another embodiment, and FIG. 7 is a sectional view taken along line VII-VII in FIG.

  This embodiment includes a pad main body 20B having a recess 24B provided at the bottom of the top surface, a highly breathable body 40B disposed on the bottom surface of the recess 24B, and the highly breathable body in the recess 24B. And an insertion body 30B inserted on the upper side of 40B. A space is formed between the insertion body 30B and the bottom surface of the recess 24B, and the highly breathable body 40B occupies the entire space. Holes 27 are provided in the insertion body 30B in the vertical direction. In the pad main body 20B, a through-hole 33 as a communication portion is vertically provided so as to communicate the vicinity of the center of the bottom surface of the recess 24B and the bottom surface of the pad main body 20B.

  The other structure of this embodiment is the same as that of FIGS. 1-3, and the same code | symbol has shown the identical part. The thickness, material, and characteristics of the highly breathable body 40B are the same as those of the highly breathable body 40. The insert 30B has the same material and characteristics as the pad body 20B. The thickness of the insertion body 30B is the same as the thickness between the recessed ceiling surface and the seat surface in FIGS. The arrangement and steps of the air holes 27 are the same as in FIGS.

  In this embodiment, the same effect as that of the embodiment shown in FIGS.

  In the above-described embodiment, the air holes 27 are provided as the ventilation portion, but the lower bottom portion may be formed of a breathable urethane foam.

  Each of the above embodiments is an example of the present invention, and the present invention can take forms other than those shown in the drawings.

It is a top view of the vehicular seat pad concerning an embodiment. It is sectional drawing which follows the II-II line of FIG. It is sectional drawing which follows the III-III line | wire of FIG. It is sectional drawing of the vehicle seat pad which concerns on another embodiment. It is sectional drawing which follows the VV line of FIG. It is sectional drawing of the vehicle seat pad which concerns on another embodiment. It is sectional drawing which follows the VII-VII line of FIG.

Explanation of symbols

10, 10A, 10B Vehicle seat pad 20, 20A, 20B Pad body 24, 24B Recess 27 Air hole (vent)
30, 30B Insertion body 33 Through hole (communication part)
35 Vacancy 40, 40A, 40B Highly breathable body 50 Pan frame 51 Opening (communication part)

Claims (12)

A pad body provided with a recess recessed upward in the bottom surface,
In a vehicle seat pad comprising an insertion body inserted into the recess,
A vacancy is provided between the ceiling surface of the recess and the upper surface of the insert, and a highly breathable body is disposed in the vacancy,
The pad main body is provided with a ventilation portion that communicates the vacancy with the seat surface of the pad main body,
A vehicular seat pad, wherein the insertion member is provided with a communicating portion that communicates the empty space with the bottom surface of the vehicular seat pad. A pad body provided with a recess recessed downward in the upper surface portion;
In a vehicle seat pad comprising an insertion body inserted into the recess,
A vacancy is provided between the bottom surface of the recess and the lower surface of the insertion body, and a highly breathable body is disposed in the vacancy,
The insertion body is provided with a ventilation portion that communicates the vacancy with the seating surface of the pad body,
A vehicle seat pad, wherein the pad main body is provided with a communicating portion that communicates the vacancy with the bottom surface of the vehicle seat pad.   The vehicle seat pad according to claim 1, wherein the communication portion includes a through hole. In the vehicle seat pad in which the pad body is mounted on the pan frame,
The bottom of the pad body is provided with a recess that is recessed upward, and a highly breathable body is disposed in the recess,
The pad body is provided with a ventilation portion that communicates the inside of the recess with the seating surface of the pad body,
A vehicular seat pad, wherein the pan frame is provided with a communicating portion that communicates the inside of the recess with the bottom surface of the vehicular seat pad.   The vehicle seat pad according to claim 4, wherein the communication portion is an opening.   The vehicle seat pad according to any one of claims 1 to 5, wherein a plurality of holes are provided as the ventilation portion.   The vehicle seat pad according to any one of claims 1 to 6, wherein the ventilation portion is arranged at a position shifted from a position vertically above the communication portion.   The vehicle seat pad according to any one of claims 1 to 7, wherein the highly breathable body is made of a highly breathable slab urethane foam.   The vehicle seat pad according to any one of claims 1 to 7, wherein the highly breathable body is formed of a molded body of loop-shaped fibers.   10. The vehicle seat pad according to claim 9, wherein the fibers are made of a thermoplastic elastic resin, and the contact portions of the fibers are heat-sealed.   The vehicle seat pad according to any one of claims 1 to 7, wherein the highly breathable body is a knitted body in which fibers are knitted in three dimensions.   The vehicle seat pad according to any one of claims 1 to 11, wherein the vacant space is provided at least under the bottom of the bottom.

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