Seat pad and vehicle seat

Abstract

To obtain a seat pad which is provided with a hook-and-loop fastener and is easy to manufacture.SOLUTION: A back pad 30 is made of a foam and includes a pad main body 32 constituting a cushioning material for a seat back 14 of a vehicle seat 10, a backing material 36 made of a cloth-like material and attached to the back surface of a pad main body 32 by integral foam molding, and a hook fastener 38 attached to the backing material 36.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present invention relates to a vehicle seat, and more particularly to a seat pad that constitutes a cushion material for a vehicle seat.

Background Art

[0002] Patent Document 1 below discloses a seat cushion pad used for a vehicle seat or the like. A hook-and-loop fastener for locking an outer skin material is provided on the surface of this seat cushion pad. The hook-and-loop fastener is adhered to a base material layer (so-called slab urethane) made of soft polyurethane foam and is integrally foam-molded with the seat cushion pad. The same technology is also disclosed in Patent Document 2 below.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the above prior art, in order to integrally foam-mold the hook-and-loop fastener with the seat cushion pad, it is necessary to prepare a hook-and-loop fastener adhered to the base material layer, so there is room for improvement from the viewpoint of facilitating manufacturing.

[0005] In consideration of the above facts, an object of the present invention is to obtain a seat pad provided with a hook-and-loop fastener and easy to manufacture, and a vehicle seat provided with the seat pad.

Means for Solving the Problems

[0006] The seat pad according to the first aspect is made of a foam, and includes a pad body that constitutes a cushion material for a vehicle seat, a back material made of a cloth-like material and attached to the back surface of the pad body by integral foam molding, and a hook-and-loop fastener as a locking portion attached to the back material.

[0007] According to the seat pad of the first aspect, the pad body made of a foam constitutes a cushion material for a vehicle seat. A back material made of a cloth-like material is attached to the back surface of the pad body by integral foam molding with the pad body. A hook-and-loop fastener as a locking portion is attached to this back material. In this way, since the hook-and-loop fastener is attached to the back material of the pad body, a general hook-and-loop fastener can be used, and there is no need to prepare a hook-and-loop fastener adhered to the base material layer. This facilitates manufacturing.

[0008] The seat pad according to the second aspect is the same as the first aspect, except that the pad body has a suspension groove penetrating from the front surface side to the back surface side of the pad body, and the hook-and-loop fastener is exposed in the suspension groove.

[0009] In the seat pad of the second aspect, the hook-and-loop fastener as a locking portion attached to the back material of the pad body is exposed in a suspension groove penetrating from the front surface side to the back surface side of the pad body. Therefore, by locking the hook-and-loop fastener as a locked portion attached to the trim cover of the vehicle seat to the above hook-and-loop fastener, the trim cover can be suspended on this seat pad.

[0010] The seat pad according to the third aspect is the same as the first aspect or the second aspect, except that the hook-and-loop fastener is sewn to the back material.

[0011] In the seat pad of the third aspect, since the hook-and-loop fastener is sewn to the back material made of a cloth-like material, it is easy to attach the hook-and-loop fastener to the back material.

[0012] The vehicle seat according to the fourth aspect includes a seat pad of any one of the first to third aspects, a trim cover covering the pad body of the seat pad, and a hook-and-loop fastener attached to the trim cover and serving as a locked portion locked to the hook-and-loop fastener.

[0013] According to the vehicle seat of the fourth aspect, a hook-and-loop fastener serving as a locked portion is attached to the trim cover covering the pad body of the seat pad, and the hook-and-loop fastener serving as the locked portion is locked to the hook-and-loop fastener serving as the locking portion attached to the back material of the pad body. Since the above seat pad is of any one of the first to third aspects, the above-described effects can be obtained.

Effects of the Invention

[0014] As described above, the seat pad and the vehicle seat according to the present invention include a hook-and-loop fastener and are easy to manufacture.

Brief Description of the Drawings

[0015]

Figure 1

Figure 2

Modes for Carrying Out the Invention

[0016] Hereinafter, a vehicle seat 10 according to an embodiment of the present invention will be described with reference to FIGS. 1 and 2. Arrows FR, LH, and UP appropriately shown in each figure indicate the front, left, and upper directions of the vehicle seat 10, respectively. Hereinafter, when simply using the front-rear, left-right, and up-down directions for description, it shall indicate the directions with respect to the vehicle seat 10.

[0017] As shown in FIG. 1, the vehicle seat 10 according to the present embodiment includes a seat cushion 12 on which an occupant sits, a seat back 14 that supports the occupant's back, and a headrest 16 that supports the occupant's head. The seat cushion 12 is attached to the floor F of the vehicle via a slide rail 18. The seat back 14 is connected to the seat cushion 12 via a reclining mechanism 20. The headrest 16 is attached to the upper end of the seat back 14 so that its vertical position can be adjusted.

[0018] As shown in FIG. 2, the seat back 14 has a back frame 22 which is a skeletal member, a back pad 30 which is a cushion material attached to the back frame 22, and a trim cover 40 covering the back pad 30. The back pad 30 corresponds to the "seat pad" in the present invention.

[0019] The back frame 22 has left and right side frames 24 (the right side frame 24 is not shown) that extend in the vertical direction of the seat back 14 at the left and right side portions of the seat back 14, an upper frame (not shown) that connects the upper ends of the left and right side frames 24 in the left - right direction, and a lower frame (not shown) that connects the lower ends of the left and right side frames 24 in the left - right direction. The left and right side frames 24 and the lower frame are made of, for example, press - formed metal sheet materials, and the upper frame is made of, for example, a metal pipe material. A spring mat (not shown) is spanned between the left and right side frames 24.

[0020] The back pad 30 has a pad body 32 that constitutes the main body of the cushioning material, a back surface material 36 attached to the back surface of the pad body 32, and left and right hook fasteners 38 (the right hook fastener 38 is not shown) that are male surface fasteners as locking portions sewn to the back surface material 36. The pad body 32 is composed of a foam such as polyurethane foam, and the back surface material 36 is composed of a cloth-like material such as a non-woven fabric. This back surface material 36 is attached to the back surface of the pad body 32 by integral foam molding with the pad body 32.

[0021] The pad body 32 to which the back surface material 36 is attached is covered from the front side and the upper side with respect to the back frame 22, and the portion in contact with the back frame 22 and the spring mat is protected by the back surface material 36. This pad body 32 has a main portion 32A that supports the occupant's back from the rear and left and right side support portions 32B (the right side support portion 32B is not shown) that support the occupant's back from the outer sides in the left and right directions.

[0022] Between the main portion 32A and the left and right side support portions 32B, suspension grooves 34 that penetrate the pad body 32 from the front side (front surface side) to the back side (rear surface side) are respectively formed. The left and right suspension grooves 34 extend in the vertical direction.

[0023] Corresponding to the left and right suspension grooves 34, left and right hook fasteners 38 are attached to the back surface material 36. Each hook fastener 38 is disposed on the front surface (the surface on the pad body 32 side) of the back surface material 36 and is sewn to the back surface material 36 at the sewing portion S1. A large number of hook-shaped hooks are provided on the front surface of each hook fastener 38.

[0024] The trim cover 40 is formed in a bag shape by sewing a plurality of skin pieces including the skin pieces 40A and 40B shown in FIG. 2, and is covered from the upper side with respect to the back pad 30. In the left and right suspension grooves 34 of this trim cover 40, sewing portions S2 (the right sewing portion S2 is not shown) between the skin pieces of the trim cover 40 are respectively inserted.

[0025] On the left and right sewing parts S2, loop fasteners 42, which are female surface fasteners as locking parts, are sewn together. A large number of annular loops are provided on the rear surface and both left and right side surfaces of the loop fastener 42. By engaging a large number of loops of each loop fastener 42 with a large number of hooks of each hook fastener 38, each loop fastener 42 is locked to each hook fastener 38, and the left and right sewing parts S2 are suspended in the back pad 30.

[0026] Next, the operation and effects of this embodiment will be described. In the vehicle seat 10 configured as described above, the back pad 30 of the seat back 14 includes a pad body 32 made of a foam. A back material 36 made of a cloth-like material is attached to the back surface of the pad body 32 by integral foam molding with the pad body 32. A hook fastener 38 is sewn to this back material 36.

[0027] In this way, since the hook fastener is sewn to the back material 36 made of a cloth-like material, a general hook fastener 38 can be used. As a result, there is no need to prepare a hook fastener adhered to a base material layer made of soft polyurethane foam or the like for integral foam molding with the pad body 32. Therefore, the manufacture of the back pad 30 provided with the hook fastener 38 becomes easy, and the manufacturing cost can be reduced.

[0028] Also, in this embodiment, the hook fastener 38 attached to the back material 36 of the pad body 32 is exposed in the suspension groove 34 penetrating from the front surface side to the back surface side of the pad body 32. Then, the loop fastener 42 attached to the trim cover 40 is locked to the hook fastener 38, so that the trim cover 40 is suspended in the back pad 30. Since it is configured in this way, for example, even when the thickness of the back pad 30 in the front-rear direction cannot be ensured and a trim cover suspension structure using hog rings cannot be adopted, the trim cover 40 can be suspended in the back pad 30.

[0029] In addition, when it is not possible to secure the front-back thickness of the back pad 30 as described above, a through hole penetrating the back pad 30 in the front-back direction may be formed, and the trim cover 40 may be fixed to the back frame 22 on the back side of the seat back 14. However, there is a problem that the assembly process of the trim cover 40 becomes complicated. In this regard, in the present embodiment, the trim cover 40 can be fixed to the back pad 30 regardless of the back frame 22.

[0030] Further, in the present embodiment, since the hook fastener 38 is sewn to the back material 36 made of a cloth-like material, the attachment of the hook fastener 38 to the back material 36 is easier compared to a configuration in which the hook fastener 38 is attached to the back material 36 by a method such as adhesion. Furthermore, by setting the back material 36 to which the hook fastener 38 is sewn in the molding die of the pad body 32, it is also possible to position the back material 36 in the molding die.

[0031] In the above embodiment, the case where the back pad 30, which is the cushion material of the seat back 14, is the "seat pad" according to the present invention has been described. However, the present invention is not limited to this, and the cushion pad, which is the cushion material of the seat cushion 12, may be the "seat pad" according to the present invention.

[0032] In the above embodiment, the hook fastener 38 is sewn to the back material 36. However, the present invention is not limited to this, and the method of attaching the surface fastener to the back material can be appropriately changed.

[0033] In addition, the present invention can be implemented with various modifications without departing from the gist thereof. Of course, the scope of the rights of the present invention is not limited to the above embodiment.

Explanation of Reference Numerals

[0034] 10 Vehicle seat 30 Back pad (seat pad) 32 Pad body 34 Suspension groove 36 Inner material 38 Hook fastener (surface fastener as locking part) 40 Trim cover 42 Loop fastener (surface fastener as locked part)

Claims

1. A pad body made of a foam and constituting a cushion material for a vehicle seat, A back material made of a cloth-like material and attached to the back surface of the pad body by integral foam molding, A hook-and-loop fastener as a locking portion attached to the back material, A seat pad provided with the above.

2. The seat pad according to claim 1, wherein the pad body has a suspension groove penetrating from the front surface side to the back surface side of the pad body, and the hook-and-loop fastener is exposed in the suspension groove.

3. The seat pad according to claim 1 or claim 2, wherein the hook-and-loop fastener is sewn to the back material.

4. The seat pad according to claim 1 or claim 2, A trim cover covering the pad body of the seat pad, A hook-and-loop fastener as a locked portion attached to the trim cover and locked to the hook-and-loop fastener, A vehicle seat provided with the above.

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