JPH10156072A - Seat for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the degree of fatigue by holding the body of a passenger effectively. SOLUTION: A seat for a vehicle is provided with a seat back 13 in which a seat cushion frame 12a having a seat cushion pad 12b mounted thereon is covered with a first skin 12c and a seat back frame having a seat back pad mounted thereon is covered with a second skin. A fabric 12f with a first core bar 12g is provided on the rear of the first skin 12c across the width thereof and the first core bar 12g is spread on the seat cushion frame 12a to form a first concave thread 12e on the surface of the first skin 12c across the width thereof. The first concave thread 12e is arranged at a position 170mm-180mm ahead of a back surface of the seat back 13. A second concave thread is formed on the surface of the second skin across the width thereof and the second concave thread is preferably provided at a position 330mm-340mm in the direction of a torso from a hip point.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a vehicle seat having a seat cushion and a seat back. More specifically, the present invention relates to a vehicle seat in which a ridge is formed in a width direction on a surface of a skin of a seat cushion and a seat back.

[0002]

2. Description of the Related Art Conventionally, a vehicle seat of this type includes a seat cushion for receiving a rear portion of an occupant and a seatback for receiving a back portion of the occupant. The position of the seat cushion is adjusted in the front-rear direction by a seat track, and the inclination angle of the seat back can be adjusted by a reclining adjuster. By adjusting the inclination angle of the seat back with the reclining adjuster, it is possible to improve the riding comfort of the occupant in a desired posture. In addition, a seat back or a seat cushion is generally formed with a ridge in the width direction on the surface of its skin, and is configured to wrap around the buttocks of the occupant and the back of the occupant. The concave stripe is formed by stretching a cloth provided on the back surface of the skin to a seat frame via a mandrel. On the other hand, such a seat becomes an element constituting the vehicle interior when mounted in the vehicle interior of the vehicle, and occupies an important weight for improving the aesthetic appearance of the vehicle interior. For this reason, the design of the sheet itself has been emphasized along with the improvement of design thinking, and various types have been proposed for the shape of the sheet, the material and pattern of the skin itself to be used, and the sheet is used. The demand for vehicles is stimulated by changing according to the type or use of vehicles.

[0003]

However, in recent years, as described above, as a result of the emphasis on design, design is sometimes emphasized rather than the comfort of the occupant. The concave stripe formed on the cushion may be variously changed from the viewpoint of this design. Explaining in terms of the ridge provided on the seat back, the seat back preferably has a maximum support pressure of 120 mm above the hip point and gradually reduces the peripheral pressure in order to improve the supportability of the third lumbar region. It has been known that there has been a tendency to provide concave streaks regardless of this. Therefore, when an inappropriate concave streak is formed, the seat cannot sufficiently support the occupant's body, and the occupant's body shakes due to the running of the vehicle. In particular, if the driver's body shakes while driving the vehicle, the arm tends to be squeezed and the steering wheel is strongly gripped in order to suppress the shaking as much as possible, increasing the driver's fatigue There was a problem. An object of the present invention is to provide a vehicle seat that effectively holds an occupant's body and reduces the degree of fatigue. Another object of the present invention is to provide a vehicle seat that facilitates the operation of the vehicle by facilitating the movement of the scapula in the average occupant (JM50).

[0004]

The invention according to claim 1 is
As shown in FIGS. 1 and 4, the seat cushion pad 1
The seat cushion 12 is configured by covering the first skin 12c on the seat cushion frame 12a on which the seat cushion 2b is mounted, and the seat is configured by covering the second skin 13c on the seat back frame 13a on which the seat back pad 13b is mounted. A back 13 and the first skin 1
A cloth 12f with a first mandrel 12g is provided on the back surface of 2c in the width direction, and the first mandrel 12g is stretched on the seat cushion frame 12a to form a first concave strip 12e on the surface of the first skin 12c in the width direction. This is an improvement of the vehicle seat on which is formed. The characteristic configuration is that the first concave streak 12 e is provided at a position 170 mm to 180 mm forward from the back surface of the seat back 13.

[0005] In the vehicle seat according to the first aspect, the first concave streak 12 e is set to be 170 mm from the back surface of the seat back 13.
By providing the first concave streak 1
The first skin 12c in front of 2e is inflated to form a bank in front of the occupant's butt to prevent the butt from moving in front of the seat. The first concave stripe 12e is 170 from the back surface.
If it is less than 1 mm, the first concave streak 12e is formed at the place where the buttocks of the average Japanese male (JM50) are received,
Can't effectively support the buttocks. Also, 180
If it exceeds mm, the bulge of the first skin 12c formed by the first concave streak 12e abuts on the thigh and gives the occupant an uncomfortable feeling.

According to a second aspect of the present invention, as shown in FIGS. 2 and 4, a seat cushion 12 and a seat are constructed by covering a first skin 12c on a seat cushion frame 12a on which a seat cushion pad 12b is mounted. A seat back frame 13a on which the back pad 13b is mounted, and a seat back 13 configured by covering the second skin 13c, and a cloth 13f with a second core 13g in the width direction is provided on the back surface of the second skin 13c. This is an improvement of the vehicle seat in which the second recess 13e is formed in the width direction on the surface of the second skin 13c by extending the second mandrel 13g on the seat back frame 13a. The characteristic configuration is that the second concave strip 13e is provided at a position of 330 mm to 340 mm in the torso direction TD from the hip point HP.

[0007] In the vehicle seat according to the second aspect, 330 mm to 34 mm in the torso direction TD from the hip point HP.
By providing the second concave strip 13e at the position B of 0 mm,
Inflating the epidermis 13c below the concave streak 13e to maximize the support pressure at a position generally considered to be preferable for supporting the third lumbar vertebra, that is, a support pressure near 120 mm above the hip point, The support pressure of the occupant is gradually reduced toward the second recess 13e formed above. Further, since the position B between 330 mm and 340 mm in the torso direction TD from the hip point HP substantially coincides with the position of the scapula of an average Japanese man (JM50), the vehicle seat according to claim 2 is a scapula. Minimize nearby support pressure. When the second concave stripe 13e is less than 330 mm, the support pressure in the vicinity of the third lumbar vertebra on the back of the average Japanese male (JM50) decreases, and when it exceeds 340 mm, the third concave ridge 13e becomes third.
The support pressure at the back near the lumbar vertebrae is equalized, which results in a contrary requirement to gradually reduce the support pressure.

[0008]

Embodiments of the present invention will now be described in detail with reference to the drawings. As shown in FIG. 4, the vehicle seat 11 includes a seat cushion 12 that receives the buttocks of the occupant and a seat back 13 that receives the back of the occupant. The seat cushion 12 and the seat back 13 are connected via a reclining adjuster 14, and the vehicle floor panel 1
6 (FIG. 1) via a seat track 17 (FIG. 1) so as to be slidable in the front-rear direction. The reclining adjuster 14 connects the rear end of the seat cushion 12 and the lower end of the seat back 13 so that the inclination angle of the seat back 13 can be adjusted.

As shown in FIG. 1, a seat track 17 extends in the traveling direction of the vehicle via a seat leg 17a, and a fixed rail 17b attached to a floor panel 16 and a seat slidably inserted into the fixed rail 17b. Bracket 1 on seat cushion frame 12a of cushion 12
And a movable rail 17d attached via the base 7c. Although not shown, the seat track 17 is provided with an adjustment lever, and by operating this adjustment lever, the seat 11 can be slid in the front-rear direction to lock the seat 11 at a desired position.

Returning to FIG. 4, the seat cushion 12 includes a seat cushion frame 12a, a seat cushion pad 12b, and a first skin 12c. The seat cushion frame 12a is made of steel and has a seat cushion spring 12d. The seat cushion pad 12b is placed on the frame 12a on which the spring 12d is erected, and the frame 12a and the pad 1
The seat cushion 12 is made by further enclosing the 2b with the first skin 12c. The seat back 13 includes a seat back frame 13a and a seat back pad 13b.
And a second skin 13c, and a seat back spring 13d is installed on the seat back frame 13a. Frame 13a on which this spring 13d is erected
The seat back pad 13b is placed on the
The seat back 13 is made by further enclosing the a and the pad 13b with the second skin 13c.

The seat cushion 12 and the seat back 1
First and second concave stripes 12e, 13e are formed in the width direction on the surfaces of the first and second skins 12c, 13c, respectively. The first and second concave stripes 12e and 13e are shown in FIGS.
As shown in FIG. 3, the cloths 12f, 13f provided on the back surfaces of the first and second skins 12c, 13c are respectively
a, 13a. Cloth 12f provided on the back of the first and second skins 12c, 13c,
Since 13f has the same structure, the cloth 12f of the seat cushion 12 will be described with reference to FIG. 3 as an example. The cloth 12f has both ends folded so as to wrap the first mandrel 12g in the width direction on the back surface of the first skin 12c. The coil spring 18 is stitched between the first mandrel 12g and the frame 12a.
(FIG. 1), the cloth 12f is
a, the first concave stripe is formed on the surface of the first skin 12c.

The feature of the present invention is that the first concave stripe 12e
Is 170 mm to 180 from the back surface of the seat back 13.
mm in the position A in front of the hip point HP and 330 mm to 34 mm in the torso direction TD from the hip point HP.
It is located at a position B of 0 mm. Here, the hip point HP is JIS (Japanese Industrial Standard) D460
7-1977 A point corresponding to the hip joint of the human body, which is the center of rotation between the torso and the thigh of the three-dimensional sitting human body model (3DM-JM50) for measuring the size of the vehicle interior. The torso direction indicates the upward direction of the torso bar, which is a rod for measuring the inclination angle of the back pan, which is a curved plate that has the shape of the back of the torso of the phantom.

In the vehicle seat configured as described above.
The first concave stripe 12e is moved from the back surface of the seat back 13 by 17
By providing 0 mm to 180 mm forward, this first
The bulge of the first skin 12c ahead of the concave stripes 12e forms a bank in front of the occupant's buttocks, and prevents the occupant's buttocks from moving in front of the seat. By providing the second recess 13e at a position B of 330 mm to 340 mm in the torso direction TD from the hip point HP, the bulge of the skin 13c below the recess 13e increases the support pressure of the occupant. That is, the second concave strip 13e maximizes the support pressure in the vicinity of 120 mm above the hip point, which is generally considered to be preferable, and the second recess 13e formed above the support point.
The support pressure of the occupant is gradually reduced toward the concave stripe 13e.

The position B between 330 mm and 340 mm in the torso direction TD from the hip point HP substantially coincides with the position of the scapula in an average Japanese man (JM50). For this reason, the support pressure near the scapula of the occupant is minimized by the second recess 13e, and the movement of the scapula of the occupant is facilitated. In the above-described embodiment, the springs 12d, 12d are attached to the respective frames 12a, 13a.
Although 13d is provided, a vehicle seat having a board provided on a seat frame may be used.

[0015]

As described above, according to the present invention, the first concave stripe is formed at a distance of 170 mm to 18 mm from the back surface of the seat back.
0 mm in front of the first concave streak.
The bulge of the skin constitutes a bank in front of the occupant's buttocks and prevents the occupant's buttocks from moving in front of the seat. In addition, 330mm-340m from the hip point to the torso direction
Since the second concave streak is provided at the position of m, the skin below the concave streak is inflated to maximize the support pressure at a place generally considered to be preferable, and the occupant's support is directed upward. The pressure can be gradually reduced.
As a result, the occupant's body can be held effectively, and the driver's fatigue can be reduced. In addition, 330 mm to 340 m in the torso direction TD from the hip point HP
Since the position B of m substantially matches the position of the scapula in the average Japanese man (JM50), the support pressure near the scapula of the occupant is minimized. As a result, the movement of the scapula of the occupant becomes easy, and the vehicle operation such as the steering wheel operation becomes easy.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing a seat cushion of a vehicle seat according to the present invention.

FIG. 2 is a longitudinal sectional view showing a seat back of the vehicle seat.

FIG. 3 is a perspective view showing a cross section of a part of the seat cushion.

FIG. 4 is a perspective view showing the configuration of the sheet.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Seat 12 Seat cushion 12a Seat cushion frame 12b Seat cushion pad 12c First skin 12e First concave strip 12f, 13f Cloth 12g First mandrel 13 Seat back 13a Seat back frame 13b Seat back pad 13c Second skin 13e Second recess Article 13g Second Mandrel HP Hip Point TD Torso

Claims (2)

[Claims] 1. A seat cushion (12) comprising a first skin (12c) and a seat back pad (13b) are mounted on a seat cushion frame (12a) on which a seat cushion pad (12b) is mounted. And a seat back (13) constituted by covering the second skin (13c) on the seat back frame (13a), and a first mandrel (12g) in the width direction on the back surface of the first skin (12c). Cloth (12f) provided with the first mandrel (12g) on the seat cushion frame (12a) to stretch the first concave (12e) in the width direction on the surface of the first skin (12c). ), Wherein the first concave stripe (12e) is provided at a position 170 mm to 180 mm forward from the back surface of the seat back (13). 2. A seat cushion (12) configured by covering a first skin (12c) and a seat back pad (13b) are mounted on a seat cushion frame (12a) on which a seat cushion pad (12b) is mounted. And a seat back (13) constituted by covering the second skin (13c) on the seat back frame (13a), and a second mandrel (13g) in the width direction on the back surface of the second skin (13c). Cloth (13f) is provided, and the second mandrel (13g) is stretched on the seat back frame (13a), so that the second mandrel (13c) extends in the width direction on the surface of the second skin (13c).
A vehicle seat provided with a concave strip (13e), wherein the second concave strip (13e) is provided at a position of 330 mm to 340 mm in a torso direction (TD) from a hip point (HP). Sheet.