JPH0757582B2 - Car seat - Google Patents

Description

TECHNICAL FIELD The present invention relates to an automobile seat, and more particularly to an automobile seat that does not cause fatigue even when riding a long distance.

[Prior art]

As a conventional automobile seat, for example, U.S. Pat.
There is one such as shown in Japanese Patent No. 037.

[Problems to be solved by the invention]

However, such a conventional example has a problem that it is structurally very difficult to get on and off.

Then, this invention is made | formed in view of such a conventional problem, and an object of this invention is to provide the seat for vehicles which satisfy | fills a feeling of fit and is easy to get in and out.

[Means for solving problems]

In order to achieve the above object, the present invention provides a seat back, and a seat including at least a first support part, a second support part, and a third support part that support the seat back and support the waist and thighs of an occupant. The first support portion is a seat that passes through the hip point within a range of 216 mm on each side centering on a seating center line in a cross section perpendicular to a line including the hip point and parallel to the seat slide angle. A first intersection point 18 mm above the horizontal line perpendicular to the center line, and the seating center line passing through the hip point at positions 216, 230 and 229 mm to the left and right of the seating center line, respectively. 2 above the horizontal line perpendicular to
A second straight line connecting the first crossing point and the second crossing point, and a straight line connecting the third crossing point and the fourth crossing point; 60 including the 1st and 4th intersections with the lower side as the center point
The second support is located in an area surrounded by a curve having a curvature of 60 mm and a curve having a curvature of mm and a second and a third intersecting point centered on the lower side of the seat cushion. The section includes a hip point, in a cross section perpendicular to a line parallel to the seat slide angle, within a range of 167 mm to the left and right of the seating center line passing through the hip point, and at a right angle to the seating center line passing through the hip point. A seating center line that passes through the hip point and is located at 169, 187, and 184 millimeters on the left and right, respectively, around the first intersection point that is located 11 mm below the horizontal line and the seating center line that also passes through the hip point. A straight line connecting the 2nd to 4th intersections located 2, 7 and 16 mm below the horizontal line perpendicular to The third support portion is located in a more enclosed area, and the third support portion is also 9 mm to the left and right of the seating center line passing through the hip point in a cross section perpendicular to a line that also includes the hip point and is parallel to the seat slide angle. In the range of, the same should be located in the area surrounded by the straight lines connecting the first to the fourth intersection points, which are respectively 67 and 72 mm below the horizontal line that passes through the hip point and is perpendicular to the seating center line. It is characterized by having done.

[Work]

Since the present invention has such a configuration, since the first support portions on both sleeve portions of the seat cushion are at relatively low positions, the height of both sleeve portions can be lowered, and the occupant can easily get on and off. Further, since the space between the second support portions existing on the left and right is relatively narrow and the positions of the second support portion and the third support portion are deep, it is easy to fit on the body of the occupant.

〔Example〕

1 to 5 are views showing an embodiment of the present invention.
Reference numeral S is a seat of the present invention for supporting an occupant, and the seat S
Includes a seat back 6, and a seat cushion 7 having the first support portion 1, the second support portion 2, and the third support portion 3 and supporting the seat back 6.

Before entering the detailed description, the terms written in this specification will be specified here.

"Seating center line of seat back" means the back pan of JIS (Japanese Industrial Standard) D 4607-1977 three-dimensional sitting human model (3DM-JM50) (hereinafter simply referred to as "human model") for measuring vehicle interior dimensions. (A curved plate that has the shape of the back of the body)
Left and right center plane.

The "hip point" is the center of rotation between the torso and thigh of the "human model" and corresponds to the hip joint of the human body.

The "torso line" is a line (the axis of the body) that is displayed when the torso bar, which is a standard bar for measuring the tilt angle of the back pan, contacts the stopper of the back bracket, and is located behind the normal line of this line ( The tilt angle (direction A) is called the torso angle, which is 26 ° in the embodiment of the present invention.

The intersection is the intersection of the vertical dimension from the hip point HP and the horizontal dimension from the seating center line BC, and identifies the area that supports the lower body of the occupant by the first to fourth intersections. Specifying this area means that the lower half of the occupant can be held in that area even if the entire seat cushion is not a so-called seat cushion.

As shown in FIG. 1, the first supporting portion 1 includes a hip point HP and has a seat slide angle (a value set so that the front of the seat cushion 7 is normally 6 ° above the horizontal line SH). A cross section perpendicular to the parallel line 4 (second
2), as shown in FIG. 2, a horizontal line SH passing through the seating center line BC and passing through the positions 216 mm to the left and right and the hip point HP and being perpendicular to the seating center line BC.
The first intersection 21a with the position of 18 mm above,
Similarly, a position at a position of 216, 230, 229 mm to the left and right of the seating center line BC and a position above the horizontal line SH that passes through the hip point HP and is perpendicular to the seating center line BC is 23, 22, 18 mm, respectively. 2 to 4 intersection 21
A straight line 21W having b to 21d and connecting the first and second intersections 21a and 21b, a straight line 21X similarly connecting the third and fourth intersections 21c and 21d, and a lower side of the seat cushion 7 as a center point. A curve 21Z having a curvature R1 of 60 mm including the first and fourth intersections 21a and 21d, and second and third intersections 21b, which also have the lower side of the seat cushion 7 as a center point.
It is located in an area 1A (hatched display) surrounded by a curve 21Y having a curvature R2 of 60 mm including 21c. TR is the torso line.

As shown in FIG. 2, the second support portion 2 has a hip point.
In a cross section that includes HP and is perpendicular to the line 4 parallel to the seat slide angle, a horizontal line that is 167 mm to the left and right of the seating center line BC that passes through the hip point HP and is also a horizontal line that is perpendicular to the seating center line BC that passes through the hip point HP. SH
The first intersection 22a with the position of 11 mm below,
Similarly, a horizontal line SH that is 169,187,184 mm to the left and right of the seating center line BC that also passes through the hip point HP and that is perpendicular to the seating center line BC that also passes through the hip point HP
It should be located in the area 2A (hatched display) surrounded by the straight lines 22W, 22Y, 22X, 22Z connecting the second to fourth intersections 22b to 22d with the positions of 2, 7 and 16 mm, respectively. ing.

Similarly, as shown in FIG. 2, the third support portion 3 has a cross section perpendicular to the line 4 including the hip point HP and parallel to the seat slide angle. The intersection point with 67,72 mm below the horizontal line SH that is perpendicular to the seating center line BC that passes through the hip point HP as well as the millimeter position 2
Straight line 22W connecting 3a, 23b and 23c, 23d not shown respectively
(Not shown), 23Y, 23X, and 23Z are arranged in an area 3A (hatched display).

In FIG. 1, reference numeral 14 constitutes the back surface of the seat back 6 and the lower surface of the seat cushion 7. In the bread frame made of FRP material, a pipe-shaped frame 9 is supported in a loop shape on the front surface of the bread frame 14, thin side frames 10 and 11 are provided in front of the frame 9, and another side is provided above. Frames 15 are provided respectively.

The seatback 6 includes the pan frame 14 and the frame 9 on the front surface of the pan frame 14 as side frames 10, 1.
1, 1 and 15 are wrapped with a pad material 12 made of a polyurethane foam material, and covered with a skin 13 such as cloth.

In FIG. 2, the reference numeral 7'shown by a broken line along the seat cushion 7 is another embodiment of the line on the front surface side of the seat cushion 7, and the shape shown by the solid line is for an automobile such as a race having a large lateral load. It is preferable to use it, and the shape indicated by the broken line is preferably used for a versatile automobile.

Specifically, the first and second support portions 1 and 2 are fixed to the bent portion 15a and the bent portion 15a in which the side frame 15 is bulged toward the skin 13 side, as shown in FIGS. 3 and 4. Installed bracket 15b
And the pad material 12 arranged on the front side of the bent portion 15a and the bracket 15b. That is, the original thickness of the pad material 12 (for example, 20 mm) is set so that the load required to bend it by 25% (5 mm for 20 mm) is 25 kg. And, the portion of the pad material 12 other than the first and second support portions 1 and 2 is
The load may be 16 to 18 kilograms (for example, in terms of plate thickness, density, etc.). Seating centerline
As shown in FIG. 5, the third supporting portion 3 located on the BC has a structure in which the pan frame 14 is swollen toward the skin 17 side,
Narrow the space between 13 and the bulging portion 14a of the pan frame 14,
The original thickness of the pad material 13 is set to, for example, 20 mm as described above, and the load is specified to be 25 kg.

Although it has been described that the second support portions 1 and 2 include the bent portion 15a and the bracket 15b formed on the side frame 15, and the pad material 12, the present invention is not limited to this. For example, as described above, the bulging portion 14a may be formed on the pan frame 14. Alternatively, a spring may be stretched between the frames 9, a bent portion may be formed in the spring, and the bracket may be fixed. In addition, the side frame 10,11,
A sub-bracket may be installed between 15 and a bent portion may be formed in the sub-bracket to fix the bracket.

Also, the figure discloses a sheet S covered with a uniform skin 13,
Alternatively, only the first, second and third support portions 1, 2, 3 may be formed of a hard resin or the like and arranged on the side portion of the seat cushion 7.

Therefore, according to the present embodiment, since the first support portions 1 on both sleeve portions of the seat cushion 7 are at relatively low positions, the height of both sleeve portions can be lowered, and the occupant can easily get on and off. . In addition, since the space between the second supporting portions 2, 2 existing on the left and right is relatively narrow, and the positions of the second supporting portion 2 and the third supporting portion 3 are deep, the body of the occupant does not fit. easy.

[Effect]

As described above, according to the present invention, the seat back and the first support portion, the second support portion, and the third support portion that support the seat back and support the waist and thighs of the occupant are provided. A seat cushion having at least the first support portion, in a cross section perpendicular to a line including the hip point and parallel to the seat slide angle, the hip point within the range of 216 mm on each side centering on the seating center line. A first intersection point 18 mm above the horizontal line perpendicular to the seating center line passing therethrough, and also at positions 216, 230, 229 mm to the left and right of the seating center line, respectively, passing through the hip point. 2 above the horizontal line perpendicular to the seating center line
A second straight line connecting the first crossing point and the second crossing point, and a straight line connecting the third crossing point and the fourth crossing point; 60 including the 1st and 4th intersections with the lower side as the center point
A curve having a curvature of millimeters, a curve having a curvature of 60 millimeters including the second and third intersections having the lower side of the seat cushion as the center point, and a curve having the lower side of the seat cushion as the center point. 2 and 3
The second support portion is positioned within an area surrounded by a curve having a curvature of 60 mm including the intersection, and the second support portion includes the hip point in a cross section perpendicular to a line parallel to the seat slide angle. A seating center line that passes through the hip point and a first intersection point that is located 11 mm below the horizontal line that also passes through the hip point and is perpendicular to the seating center line that passes through the hip point. The second to fourth intersections at the positions of 169, 187, and 184 mm on the left and right, respectively, and at positions of 2, 7, and 16 mm, respectively, below the horizontal line passing through the hip point and perpendicular to the seating center line. It should be located in the area surrounded by the connecting straight lines, and the third support part also includes the hip points and the seat slats. In a cross section perpendicular to the line parallel to the angle, it is within a range of 9 mm to the left and right from the seating center line passing through the hip point, and 67 and 72 mm below the horizontal line perpendicular to the seating center line also passing through the hip point. It is characterized in that it is located in the area surrounded by the straight lines connecting the first to fourth intersections forming the position No. 1, so that it is possible to provide a seat that is easy to get on and off while satisfying the feeling of fit. The effect is obtained.

[Brief description of drawings]

1 to 5 are views showing an embodiment of the present invention.
1 is a longitudinal sectional view, FIG. 2 is a sectional view taken along line II-II of FIG. 1, FIG. 3 is a longitudinal sectional view of first and second supporting portions, and FIG. 4 is a perspective view thereof. FIG. 5 is a vertical sectional view of the third support portion. S: Automotive seat, 1st support portion, 2nd second
Support part, 3 ... Third support part, 4 ... Line parallel to seat slide angle, 6 ... Seat back, 7 ... Seat cushion, 1A, 2A, 3A ... Area, 21a, 22a, 23a.
1st intersection, 21b, 22b, 23b …… 2nd intersection, 21c, 22c, 23c ……
3rd intersection, 21d, 22d, 23d …… 4th intersection, HP …… hip point, TR …… torso line, BC …… seating center line, SH
……Horizon.

Claims (1)

[Claims] 1. A seat cushion, comprising: a seat back; and a seat cushion having at least a first support portion, a second support portion, and a third support portion that support the seat back and support a waist and a thigh of an occupant. The first support portion is perpendicular to the seating center line passing through the hip point within a range of 216 mm on each side centering on the seating center line in a cross section perpendicular to a line including the hip point and parallel to the seat slide angle. A first intersection point 18 mm above the horizontal line and a horizontal line that is 216, 230, 229 mm to the left and right of the seating center line and that is perpendicular to the seating center line passing through the hip point. 2 upwards each
A second straight line connecting the first crossing point and the second crossing point, and a straight line connecting the third crossing point and the fourth crossing point; 60 including the 1st and 4th intersections with the lower side as the center point
Located in an area surrounded by a curve having a curvature of 60 mm and a curve having a curvature of 60 mm including the second and third intersections whose center points are the lower sides of the seat cushions. In the cross section that includes the hip point and is parallel to the line parallel to the seat slide angle, the support portion is within a range of 167 mm to the left and right of the seating center line passing through the hip point, and is also perpendicular to the seating center line passing through the hip point. The first intersection point 11 mm below the horizontal line and the seating center lines that also pass through the hip point and are 169, 187, and 184 mm left and right, respectively, and also the seating center that passes through the hip point. A straight line connecting the 2nd to 4th intersections below the horizontal line perpendicular to the line, which are located at 2, 7, and 16 mm, respectively. The third support portion is located in an area surrounded by, and the third support portion is also 9 mm to the left and right of the seating center line passing through the hip point in a cross section perpendicular to a line that also includes the hip point and is parallel to the seat slide angle. In the range of, the same should be located in the area surrounded by the straight lines connecting the first to the fourth intersection points, which are respectively 67 and 72 mm below the horizontal line that passes through the hip point and is perpendicular to the seating center line. A car seat characterized by the above.