Seat pad and vehicle seat

Abstract

To suppress damaging of appearance design and comfort of a seated crew member.SOLUTION: A seat cushion pad 20 includes a ventilation member 28 which is formed into a seat shape of a prescribed thickness and allows the air to pass inside. The seat cushion pad 20 is provided with a pad body 26. In the pad body 26, a ventilation member arrangement recess 34 which is formed into a recessed shape with a seated crew member side open and arranges the ventilation member 28 inside is formed. On the bottom of the ventilation member arrangement recess 34, recessed groove parts 38 are formed. The groove parts 38 are formed along inner peripheral surfaces 34B of the ventilation member arrangement recess 34. A dimension of the groove parts 38 is set to one in which end parts of the ventilation member 28 can be pressed.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a seat pad and a vehicle seat. [Background technology]

[0002] To improve the comfort of seated occupants, seats equipped with an internal air-blowing device such as a blower have been developed. For example, Patent Document 1 below discloses an air-conditioned seat in which air-blowing devices are provided on the backside of the seat back and seat cushion. In this seat back and seat cushion, the seat pad serving as cushioning material includes a seating portion for supporting the seated occupant's body and side support portions located on the outer side of the seating portion in the seat width direction and bulging outward toward the seat surface. In this seat pad, a substantially U-shaped suspension groove is formed at the boundary between the seating portion and the side support portions, which is open toward the seat surface in cross section. A suspension wire is provided in this suspension groove.

[0003] The seat cover, which covers the seat back and seat cushion, has a locking device attached to the back surface. The seat cover is pulled into the suspending groove by the locking device being attached to the suspension wire of the seat pad, and is fixed in place while conforming to the shape of the seat pad.

[0004] Between the seat pad and the seat cover, a three-dimensional mesh cushion (ventilation member) made of a fibrous material with a certain degree of elasticity and breathability is disposed. This ventilation member is provided on both the seating portion and the side support portion. Specifically, a ventilation member of approximately the same size as the seating portion is disposed on top of the seating portion of the seat pad. Meanwhile, the ventilation member disposed on the side support portion of the seat pad is disposed so that one end face thereof fits into the hanging groove. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2009-77760 Summary of the Invention [Problem to be solved by the invention]

[0006] However, in the hanging groove of the above-mentioned Patent Document 1, a hanging wire is arranged and the ventilation member on the side support side is pulled in and arranged together with the seat cover. Therefore, the hanging groove needs to be made wider and deeper. In this case, the appearance design of the seat is impaired and the cushioning effect of the hanging groove is reduced, which may impair the comfort of the seated occupant.

[0007] In consideration of the above, an object of the present invention is to provide a seat pad and a vehicle seat that can suppress impairment of the appearance design and the comfort of a seated occupant. [Means for solving the problem]

[0008] The seat pad of the first aspect is formed in a sheet shape of a predetermined thickness, and includes a ventilation member that allows air to pass through the inside thereof, a ventilation member arrangement recess that is formed in a concave shape that is open on the seated occupant side and in which the ventilation member is arranged, and a ventilation member arrangement recess at the bottom of the ventilation member arrangement recess. It Along the inner circumferential surface of the ventilation member arrangement recess The seated passenger side is open and concave and a size set so that the end of the ventilation member can be pushed in. Groove and a pad body having a portion.

[0009] In the seat pad of the first aspect, the ventilation member is disposed in the ventilation member disposing recess of the pad body. Here, the ventilation member disposing recess has a bottom along the inner peripheral surface of the ventilation member disposing recess. , a concave seat with an open occupant sideThe grooves are formed. Therefore, when the size of the ventilation member is larger than the size of the ventilation member placement recess, the ends of the ventilation member can be pushed into the grooves. This prevents the ends of the ventilation member from protruding from the ventilation member placement recess. As a result, it is possible to prevent the exterior design and the comfort of the seated occupant from being impaired.

[0010] The seat pad of the second aspect is the seat pad of the first aspect, in which the end side of the ventilation member is bent toward the groove portion, and the end of the ventilation member is positioned within the groove portion.

[0011] In the seat pad of the second aspect, even if the size of the ventilation member is larger than the size of the ventilation member placement recess, the ventilation member can be accommodated within the ventilation member placement recess.

[0012] The seat pad of the third aspect is the seat pad of the first aspect, in which, when the end of the ventilation member is not positioned inside the groove portion, the end of the ventilation member is spaced apart from or abuts the inner surface of the ventilation member positioning recess.

[0013] In the seat pad of the third aspect, even if the size of the ventilation member is the same as or smaller than the size of the ventilation member placement recess, the ventilation member can be accommodated within the ventilation member placement recess.

[0014] The vehicle seat of the fourth aspect comprises a seat cushion that supports the buttocks of a seated occupant from the underside of the seat, a seat back that supports the back of the seated occupant from the rear side of the seat, and a seat pad of any one of the first to third aspects that forms part of at least one of the seat cushion and the seat back.

[0015] In the vehicle seat of the fourth aspect, by being equipped with a seat pad of any one of the first to third aspects, it is possible to prevent impairment of the external design and the comfort of the seated occupant. [Effects of the Invention]

[0016] As described above, the seat pad and vehicle seat of the present invention have the excellent effect of improving the appearance design of the seat and the comfort of the seated occupant. [Brief explanation of the drawings]

[0017] [Figure 1] 1 is a perspective view showing a vehicle seat according to an embodiment of the present invention; [Figure 2] FIG. 2 is a perspective view showing a seat cushion pad. [Figure 3] FIG. 2 is a perspective view showing a pad body. [Figure 4] 4 is a cross-sectional view showing a cross section of the seat cushion pad taken along line 4-4 shown in FIG. 2. FIG. [Figure 5] 10 is a cross-sectional view schematically showing a seat cushion pad, illustrating a case where the size of the ventilation member is larger than the size of the ventilation member placement recess. FIG. [Figure 6] 10 is a cross-sectional view schematically showing a seat cushion pad, illustrating a case where the size of the ventilation member is smaller than the size of the ventilation member placement recess. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0018] A vehicle seat 10 according to this embodiment will be described with reference to FIGS.

[0019] 1 shows a perspective view of a vehicle seat 10 of this embodiment as seen from the left front side of the seat. In the drawing, the arrow FR indicates the front side of the seat, the arrow UP indicates the upper side of the seat, the arrow RH indicates the right side in the seat width direction, and the arrow LH indicates the left side in the seat width direction. In the following description, unless otherwise specified, when the terms "front-rear," "up-down," and "left-right" are used, they refer to the front-rear direction of the seat, the up-down direction of the seat, and the left-right direction in the seat width direction.

[0020] As shown in FIG. 1, a vehicle seat 10 includes a seat cushion 12 that supports the buttocks of a seated occupant from below, a seat back 14 that supports the back of the seated occupant from the rear side of the seat, and a headrest 16 that supports the head of the seated occupant from the rear side of the seat.

[0021] The seat cushion 12 is configured by attaching a seat cushion pad 20, which serves as a seat pad covered with a skin material 18, to a seat cushion frame (not shown), etc. The seat back 14 is configured by attaching a seat back pad 24, which serves as a seat pad covered with a skin material 22, to a seat back frame (not shown), etc.

[0022] As shown in FIG. 2, the seat cushion pad 20 includes a pad body 26 and a ventilation member 28 attached to the pad body 26.

[0023] 3 and 4, the pad body 26 includes a main portion 30 that forms the left-right central portion of the pad body 26. The pad body 26 also includes a pair of left and right side support portions 32 that form both left and right side portions of the pad body 26. The pair of left and right side support portions 32 protrude upward relative to the main portion 30.

[0024] A ventilation member placement recess 34 is formed in the main part 30 of the pad body 26, and is concave and open on the seated occupant side. When viewed from the seated occupant side (from above), the ventilation member placement recess 34 has a rectangular shape. An area at the bottom of the ventilation member placement recess 34, surrounded by a groove 38 (described later), forms a mounting surface 34A on which the ventilation member 28 is placed. A recessed air passage 36 is formed in a part of the area of ​​the main part 30 corresponding to the mounting surface 34A, for supplying or discharging air passing through the ventilation member 28. A dimension D from the mounting surface 34A to the upper surface 30A of the main part 30 is set to be approximately the same as a thickness dimension T of the ventilation member 28.

[0025] Furthermore, a concave groove 38 that is open toward the seated occupant is formed on the inner circumferential surface 34B of the ventilation member placement recess 34 at the bottom of the ventilation member placement recess 34. This groove 38 is formed along the inner circumferential surface 34B of the ventilation member placement recess 34. As a result, the shape of the groove 38 when viewed from the seated occupant side is a rectangle that surrounds the periphery of the mounting surface 34A. Also, as shown in FIG. 4 , the groove width W of the groove 38 is set to a dimension that allows the end 28A of the ventilation member 28 to be pushed in. Here, the groove width W of the groove 38 may be set to a dimension slightly larger than or equal to the thickness dimension T of the ventilation member 28. In this case, the end 28A of the ventilation member 28 can be easily pushed into the groove 38. Also, the groove width W of the groove 38 may be set to a dimension slightly smaller than the thickness dimension T of the ventilation member 28. In this case, the end 28A of the ventilation member 28 can be pushed into the groove 38 while the groove 38 is being pushed open by the end 28A of the ventilation member 28.

[0026] As shown in FIGS. 2 and 4 , the ventilation member 28 is formed in a sheet shape with a predetermined thickness T and is rectangular when viewed from the seated occupant's side. The ventilation member 28 is formed, for example, by weaving thread-like polyester resin. This allows air to pass through the ventilation member 28. The left-right dimension A1 and the front-rear dimension A2 of the ventilation member 28 are set to correspond to the left-right dimension and the front-rear dimension of the ventilation member placement recess 34. In the example shown in FIG. 4 , the left-right dimension A1 of the ventilation member 28 is the same as the left-right dimension of the ventilation member placement recess 34. Therefore, when the ventilation member 28 is placed in the ventilation member placement recess 34 and placed along the placement surface 34A, both left-right end portions 28A of the ventilation member 28 abut against the inner circumferential surface 34B of the ventilation member placement recess 34.

[0027] (Actions and Effects of This Embodiment) Next, the operation and effects of this embodiment will be described.

[0028] 1, 2, and 4, in the vehicle seat 10 of the present embodiment described above, air supplied from an air supply device (not shown) can flow along the ventilation member 28. This makes it possible to prevent humidity from increasing at the boundary between the seated occupant and the seat cushion 12.

[0029] However, there may be variations in the manufacturing process of the ventilation member 28. Ki etc. As a result, the left-right dimension A1 and the front-rear dimension A2 of the ventilation member 28 may be larger than the left-right dimension and the front-rear dimension of the ventilation member arrangement recess 34. In the example schematically shown in FIG. 5, the left-right dimension A1 of the ventilation member 28 is larger than the left-right dimension of the ventilation member arrangement recess 34. In this case, both left-right end portions 28A of the ventilation member 28 can be pushed into the left and right groove portions 38. Here, when both left-right end portions 28A of the ventilation member 28 are pushed into the left and right groove portions 38, both left-right end portions 28A of the ventilation member 28 are bent toward the groove portions 38, and both left-right end portions 28A of the ventilation member 28 are disposed in the groove portions 38. This prevents both left-right end portions 28A of the ventilation member 28 from protruding from the ventilation member arrangement recess 34 toward the seated occupant. As a result, it is possible to prevent the appearance design of the seat cushion 12 and the comfort of the seated occupant from being impaired.

[0030] Although not shown, even if the dimension A2 of the ventilation member 28 in the front-rear direction is larger than the dimension of the ventilation member arrangement recess 34 in the front-rear direction, both front-rear end portions 28A of the ventilation member 28 can be pushed into the front and rear groove portions 38. This makes it possible to prevent the appearance design of the seat cushion 12 and the comfort of the seated occupant from being impaired.

[0031] 6, the left-right dimension A1 of the ventilation member 28 is smaller than the left-right dimension of the ventilation member arrangement recess 34. In this case, when the ventilation member 28 is placed in the ventilation member arrangement recess 34 and placed along the placement surface 34A, both left-right end portions 28A of the ventilation member 28 are spaced apart from the inner circumferential surface 34B of the ventilation member arrangement recess 34. In other words, gaps 40 are formed between both left-right end portions 28A of the ventilation member 28 and the inner circumferential surface 34B of the ventilation member arrangement recess 34.

[0032] Incidentally, even if the left-right dimension A1 and the front-rear dimension A2 of the ventilation member 28 are larger than the left-right dimension and the front-rear dimension of the ventilation member arrangement recess 34, the end 28A of the ventilation member 28 can be pushed into the groove 38 as described above. Therefore, the left-right dimension A1 and the front-rear dimension A2 of the ventilation member 28 can be set to dimensions close to the left-right dimension and the front-rear dimension of the ventilation member arrangement recess 34. This reduces the gap 40 between the end 28A of the ventilation member 28 and the inner circumferential surface 34B of the ventilation member arrangement recess 34, making it possible to suppress left-right and front-rear misalignment of the ventilation member 28 within the ventilation member arrangement recess 34.

[0033] In the above-described example, the configuration of the present invention is applied to the seat cushion pad 20, but the configuration of the present invention can also be applied to the seat back pad 24.

[0034] The above describes one embodiment of the present invention, but the present invention is not limited to the above, and it goes without saying that it can be implemented in various other modified forms within the scope of the gist of the present invention. [Explanation of symbols]

[0035] 10 Vehicle seats 12 seat cushions 14 Seat back 26 Pad body 20 Seat cushion pad (seat pad) 24 Seat back pad (seat pad) 28 Ventilation components 28A End of ventilation member 34 Ventilation member placement recess 34B Inner surface 38 Groove

Claims

1. a ventilation member formed in a sheet shape having a predetermined thickness and allowing air to pass through the interior thereof; a pad body having a ventilation member placement recess formed in a recessed shape that is open toward the seated occupant and in which the ventilation member is placed, and a groove portion formed in a recessed shape that is open toward the seated occupant along an inner peripheral surface of the ventilation member placement recess at the bottom of the ventilation member placement recess and set to a dimension that allows an end of the ventilation member to be pushed in; Seat pad with.

2. The seat pad according to claim 1 , wherein the end of the ventilation member is bent toward the groove, and the end of the ventilation member is disposed in the groove.

3. 2. The seat pad according to claim 1, wherein when the end of the ventilation member is not positioned inside the groove portion, the end of the ventilation member is spaced apart from or in contact with the inner surface of the ventilation member positioning recess.

4. a seat cushion that supports the buttocks of a seated occupant from below the seat; a seat back that supports the back of a seated occupant from the rear side of the seat; The seat pad according to any one of claims 1 to 3, which constitutes a part of at least one of the seat cushion and the seat back; A vehicle seat comprising:

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