JPH0757579B2 - Car seat - Google Patents

Description

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

[Prior art]

Examples of conventional automobile seats include, for example, Japanese Utility Model Laid-Open No. 51-1127.
There is one such as shown in Japanese Patent Publication No. 07.

In this automobile seat, the seat cushion and the seat back are flat.

[Problems to be solved by the invention]

However, according to such a conventional example, since the occupant's body is not always supported, the occupant moves left and right, the driving posture is not fixed, the position of the foot becomes unstable, and the position of the brake pedal becomes unclear. In addition to being a cause of erroneous operation, there is a problem that it is easy to get tired.

Therefore, the present invention has been made in view of the above conventional problems, and an object of the present invention is to provide a vehicle seat that can ensure a normal driving posture and is less tired.

[Means for solving problems]

In order to achieve such an object, the present invention provides a first support portion that supports the scapulae of the upper body of the occupant, a second support portion that supports the spine of the upper body, a third support portion that supports the upper back of the latissimus dorsi, and a waist. Fourth to sixth supporting the surroundings
The seat back includes at least a seat back having a support portion, at least a seventh and an eighth support portion for supporting the thigh of the lower body of the occupant, and a ninth support portion for supporting the periphery of the caudal bone of the lower body of the occupant. And a seat cushion supporting the first support portion, and the first support portion is located at a position of 300 mm upward from the hip point along the torso line,
Approximately 55 mm to the rear from the torso line, and to the left and right of the seat back seating center line
The first intersection point at a position of 150 mm, and the position 300 mm upward from the hip point along the torso line, and the distance rearward at a right angle from the torso line is 32, 37, 58 mm and 173, 176, 15 to the left and right of the seating center line of the seat back
A second straight line connecting the first crossing point and the fourth crossing point, a straight line connecting the second crossing point and the third crossing point, and a rear side of the seat back. With a curve having a curvature of 140 mm including the first and second intersections having the center point, and a curve having a curvature of 180 mm including the third and fourth intersections having the rear side of the seat back as the center point. The second support is located within the enclosed area and is located 300 mm above the hip point along the torso line.
Be positioned in an area surrounded by straight sides of 114 mm and 120 mm in a rearward direction at a right angle to the torso line and straight sides of 8 mm to the left and right of the seating center line. The third support portion is located 300 mm upward from the hip point along the torso line,
Approximately 100 mm to the rear of the torso line at a rearward dimension, and 107 mm to the left and right of the seat back seating center line, and the first intersection point of 300 mm upward from the hip point along the torso line.
At the position of millimeter, the rearward dimension of the torso line is approximately 90, 104 mm, and 127, 12 to the left and right of the seat back center line of the seat back, respectively.
A straight line connecting the first intersection and the fourth intersection, and a straight line connecting the second intersection and the third intersection, and the seat back of the seat back. A curve having a curvature of 80 millimeters including the first and second intersections with the front side as the center point and the third and fourth intersections with the front side of the seat back as the center point.
The fourth support portion is located 50 mm above the hip point along the torso line from the seating center line and is located within an area surrounded by a curve having a curvature of millimeter. 151 mm to the left and right, a first intersection point where the dimension of the rear is approximately 64 mm at a right angle from the torso line, and the dimension of 50 mm upward from the hip point along the torso line. Approximately right angle from the line
It has 50, 60, 73 mm and second to fourth intersections at positions 160, 173 and 163 mm to the left and right of the seating center line of the seat back, and is surrounded by straight lines connecting the first to fourth intersections, respectively. The fifth support portion is located 50 mm above the hip point along the torso line from the hip point, is 109 mm to the left and right of the seating center line, and is substantially larger than the torso line. The first intersection point has a dimension of 109 mm in a rearward direction at a right angle, and the dimension is 50 mm upward from the hip point along the torso line. 101, 107, 115 mm, and second to fourth intersections at positions 129, 132, 112 mm to the left and right of the seating center line of the seat back, respectively. Point and the fourth
A straight line connecting the intersections, a straight line similarly connecting the second intersections and the third intersections, and a curve having a curvature of 70 millimeters including the first intersection and the second intersection having the front side of the seat back as the center point, Similarly, the seat back is located in an area surrounded by a curve having a curvature of 70 mm including a third intersection and a fourth intersection with the front side of the seat back as a center point, and the sixth support portion has the hip point. From the seating centerline to the left and right with a dimension of 50 mm on the upper side along the torso line, and a straight line connecting the intersections of the dimensions of 113 mm and 125 mm to the rear approximately perpendicular to the torso line. Located in the enclosed area, the seventh support part includes a line parallel to the seat slide angle including the seat cushion hip point. In a right-angled cross section at a position of 50 mm from the hip point to the rear side along the seat cushion, the seat cushion is positioned 156 mm to the left and right of the seating center line of the seat cushion, and to the seating center line passing through the hip point. The first intersection point, which is located 30 mm below the horizontal line at a right angle, and 160, 175, 16 respectively to the left and right of the seating center line.
The dimensions below the horizontal line that is 9 mm and passes through the hip point and is perpendicular to the seating center line are 17, 24,
A straight line connecting the first and fourth intersections, a straight line connecting the second and third intersections, and an upper side of the seat cushion. 20 including the first and second intersections centered at
A curve having a curvature of 0 mm, and a third intersection point and a fourth intersection point, which are also centered on the upper side of the seat cushion.
It is located in an area surrounded by a curve having a curvature of 200 mm including the intersection, and the eighth support part is located behind the hip point along the line parallel to the seat slide angle including the hip point of the seat cushion. In a cross section at a right angle at a position of 50 mm in the side direction, the seat cushion has a position of 135 mm to the left and right of the seating center line, and 69 mm below the horizontal line passing through the hip point and perpendicular to the seating center line. The first intersection point at the position of millimeter and the left and right sides of the seating center line are 144, 147 and 13 respectively.
6 mm below the horizontal line passing through the hip point and perpendicular to the seating center line, and the dimensions are 62 and 65, respectively.
A second straight line connecting the first crossing point and the fourth crossing point, a straight line connecting the second crossing point and the third crossing point, and an upper side of the seat cushion. A curve having a curvature of 60 mm including a first intersection and a second intersection having a center point, and a curve having a curvature of 60 mm including a third intersection and a fourth intersection having the upper side of the seat cushion as a center point. The ninth support portion is located within an area surrounded by and, and the ninth support portion is located at a position 50 mm in the rearward direction from the hip point along a line including the hip point of the seat cushion and parallel to the seat slide angle. In a right-angled cross section at 11 mm to the right and left of the seating center line of the seat cushion, and water perpendicular to the seating center line passing through the hip point. Characterized in that the intersection position of 75 mm and 80 millimeters substantially perpendicularly downward so as to be positioned within an enclosed area by the respective connecting straight line from the line.

[Work]

Since the present invention has such a configuration, the first to ninth support portions evenly contact and support the back, hips and thighs of the occupant, so that the driving posture is determined and it is hard to get tired even when riding for a long time.

〔Example〕

1 to 7 are views showing an embodiment of the present invention, which is a seat of the present invention for supporting the upper body, waist and thighs of an occupant, the seat S being the first support portion. 1, the second support part 2, the third support part 3, the fourth support part 4, the fifth support part 5,
And a seat back 10 having a sixth supporting portion 6, a seat cushion 11 having a seventh supporting portion 7, an eighth supporting portion 8 and a ninth supporting portion 9 and supporting the seat back 10.

Before going into the detailed description, the terms used in the present 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 reference 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 supporting the upper body of the occupant by the first to fourth intersections. Specifying this area means that the upper half of the occupant can be held in the area even if the entire seat back does not have to be a so-called seat back.

As shown in FIG. 2, the first support portion 1 has an upper dimension of 300 along the torso line TR from the hip point HP.
Seatback centerline BC of seatback 10 in mm position
The first intersection 21a with the position of 300 mm to the left and right, the position of 300 mm, and the position of 55 mm to the rear of the torso line TR passing through the hip point HP, and the seatback 10 also.
The second position is 173,176,153 mm to the left and right from the seating center line BC of the seat and is 300 mm at the same position, and the size is 32,37,58 mm rearward from the torso line TR passing through the hip point HP. ~ Fourth
Intersections 21b, 21c, 21d, and the first and fourth intersections 21a, 2
A straight line 21W connecting between 1d and the second and third intersections 21b, 2
A straight line 21X connecting between 1c, a curve 21Y having a curvature R1 of 140 mm including the first and second intersections 21a and 21b with the rear side of the seat back 10 as a center point, and the rear side of the seat back 10 also Third and fourth intersections with the center point
Curve 21 with a curvature R2 of 180 mm including 21c and 21d
It is located in area 1A (hatched display) surrounded by Z and.

In FIG. 1, reference numeral 12 is a pipe-shaped frame embedded in the seat back 10, and thin side frames 13 and 14 are arranged in front of the frame 12.

The seat back 10 includes the frame 12 and the frame
Bread frame 17 made of FRP material with 12 supported on the back
And the side frames 13 and 14 are wrapped with a pad material 15 made of a polyurethane foam material and covered with a skin 16 such as cloth.

As shown in FIG. 2, the position of the frame 12 is 300 mm from the hip point HP to the upper side along the torso line TR, and is 191 mm to the left and right of the seating center line BC of the seat back 10. The same as the position of 300 mm and the hip point H
Approximately 55 degrees to the rear from the torso line TR passing through P
The center is the intersection 12a at the position of millimeter.

As shown in FIG. 2, the second support portion 2 has a dimension of 30 from the hip point HP to the upper side along the torso line TR.
At the position of 0 mm, the dimension to the rear of the torso line TR passing through the hip point HP at a substantially right angle is 114 mm and 120 mm and the seating center line B
Located in the area 2A (hatched display) surrounded by straight lines 22W, 22X, 22Y (not shown) and 22Z that connect intersections 22a, 22b and 22c, 22d (not shown) with the position 8 mm to the left and right of C I am trying.

As shown in FIG. 2, the third support portion 3 has an upper dimension of 300 from the hip point HP to the torso line TR.
Seatback centerline BC of seatback 10 in mm position
The first intersection point 23a at a position of 300 mm to the left and right and at a position of 300 mm at the same position and at a position approximately 100 mm rearward from the torso line TR passing through the hip point HP, and the seat back 1 similarly.
The second and the positions of 127,129,108 mm to the left and right of the seating center line BC of 0, which are the same as the positions of 300 mm, and the positions at the rear of the torso line TR passing through the hip point HP at a substantially right angle are 88,90,104 mm. 4th intersections 23b-23d, and the first and fourth intersections 23a, 23
A straight line 23W connecting between d and the second and third intersections 23b, 23
A straight line 23X connecting between c, a curve 23Y having a curvature R1 of 80 mm including the first and second intersections 23a, 23b centered on the front side of the seatback 10, and the front side of the seatback 10 as well. 3rd and 4th intersections 23 centered at
It is located in an area 3A (hatched display) surrounded by a curve 23Z having a curvature R2 of 80 mm including c and 23d.

As shown in FIG. 3, the fourth support portion 4 has a dimension of 50 from the hip point HP to the upper side along the torso line TR.
15 mm to the left and right of the seating center line BC at the millimeter position
At the first intersection point 24a at a position of 1 mm and a position of a dimension of 64 mm in the rear approximately right angle from the torso line TR passing through the hip point HP, and at a position of 50 mm, to the left and right of the seating center line BC, respectively. 160,173,163
As with the millimeter position, the dimensions to the rear of the torso line TR passing through the hip point HP are approximately 50 and 6 respectively.
Area 4A surrounded by straight lines 24W, 24X, 24Y, and 24Z that connect the second to fourth intersections 24b to 24d with the position of 0,73 mm
It is located within the (hatched display).

As shown in FIG. 3, the fifth support portion 5 has a dimension of 50 mm on the upper side from the hip point HP along the torso line TR, and is 109 mm to the left and right of the seating center line BC of the seat back 10. The same as the position of 50 mm, and the first intersection point 25a with the position of a size of 109 mm in the rear approximately right angle from the torso line TR passing through the hip point HP and the seat back 10 also.
2nd to 4th intersections with the positions of 129,132,112 mm to the left and right of the seating center line BC of the same, and at the position of 50 mm at the same position and at a position approximately 101,107,115 mm rearward from the torso line TR passing through the hip point HP. 25b to 25d, and the first and fourth intersections 25a, 25
A straight line 25W connecting between d and the second and third intersections 25b, 25
A straight line 25X connecting between c, a curve 25Y having a curvature R1 of 70 mm including the first and second intersection points 25a, 25b centered on the front side of the seat back 10, and the front side of the seat back 10 as well. 3rd and 4th intersections 25 centered at
It is located within an area 5A (hatched display) surrounded by a curve 25Z having a curvature R2 of 70 mm including c and 25d.

As shown in FIG. 3, the sixth support portion 6 is located at a position where the dimension from the hip point HP to the upper side along the torso line TR is 50 mm and is 10 mm to the left and right of the seating center line BC. And a straight line 26W, 26X, 26Y connecting the intersection points 26a, 26b and 26c, 26d not shown in the figure with the positions of the dimension 113 mm and 125 mm rearward from the torso line TR passing through the hip point HP.
(Not shown), it is located in the area 6A (hatched display) surrounded by 26Z.

As shown in FIG. 1, the seventh support portion 7 includes a hip point HP of the seat cushion 10 and a seat slide angle (usually 6 ° with respect to the horizontal line SH so that the front side of the seat cushion 10 is on the upper side). Value) parallel to
In a right-angled cross section at a position of 50 mm from the hip point HP to the rear along 30, as shown in FIG.
The first intersection point 27a between the position of mm and the position 30 mm below the horizontal line SH which is perpendicular to the seating center line BC passing through the hip point HP, and the position of 160,175,169 mm to the left and right of the seating center line BC, respectively. The second to fourth intersection points 27b, 27c, 27d with the position below the horizontal line SH passing through the hip point HP and perpendicular to the seating center line BC are 17, 24, 37 millimeters, respectively, and 1
And a straight line 27W connecting the fourth intersection points 27a, 27d, a straight line 27X similarly connecting the second and third intersection points 27b, 27c, and the first and second intersection points 27 with the upper side of the seat cushion 10 as the center point.
Curve 27Y with a curvature R1 of 200 mm including a and 27b
And a curve 27Z having a curvature R2 of 200 mm including the third and fourth intersection points 27c and 27d centering on the upper side of the seat cushion 10 as well, and located in an area 7A (hatched display). I have to.

As shown in FIG. 1, the eighth supporting portion 8 is located at a position where the rearward dimension from the hip point HP is 50 mm along a line 30 including the hip point HP of the seat cushion 10 and parallel to the seat slide angle. As shown in FIG. 4, in the right-angled cross section at the position of 135 mm on each side and the hip point H about the seating center line BC.
6 below the horizontal line SH passing through P and perpendicular to the seating center line BC
The first intersection 28a with the position of 9 mm and the dimension below the horizontal line SH that passes through the hip point HP and is perpendicular to the seating center line BC passing through the hip point HP are also left and right from the seating center line BC. 62,65,73 respectively
A straight line 28W having second to fourth intersections 28b to 28d with respect to the position of millimeter and connecting the first and fourth intersections 28a and 28d,
Similarly, a straight line 28X connecting the second and third intersections 28b and 28c, and a curve 28Y having a curvature R1 of 60 millimeters including the first and second intersections 28a and 28b centered on the upper side of the seat cushion 10, Similarly, including the third and fourth intersection points 28c and 28d whose center points are on the upper side of the seat cushion 60.
It is positioned within an area 8A (hatched display) surrounded by a curve 28Z having a curvature R2 of millimeters.

As shown in FIG. 1, the ninth support portion 9 is located at a position of 50 mm from the hip point HP along a line 30 including the hip point HP of the seat cushion 10 and parallel to the seat slide angle to the rear side. As shown in FIG. 4, the hip point HP
11mm to the left and right from the seating center line BC passing through and the intersection point 29a with the position of a dimension of 75 mm and 80 mm below the horizontal line SH perpendicular to the seating center line BC passing through the hip point HP. Area 9A (hatched display) surrounded by straight lines 29W, 29X, 29Y (not shown) and 29Z connecting 29b and 29c, 29d not shown in the figure, respectively
To be located in.

2 to 4, reference numeral 10 'indicated by a broken line along the seat back 10 is another embodiment of the line on the front surface side of the seat back 10, and the shape indicated by the solid line is a lateral load such as a race. It is better to use it for a large vehicle, and the shape shown by the broken line is good for a versatile vehicle.

The first to ninth support portions 1 to 9 are specifically the frame 12,
Seat S such as side frames 13 and 14 and pad material 15
It is a constituent member and has a higher hardness than other parts. Furthermore, in detail, the first, third, fourth,
5 Specifically, the support parts 1, 3, 4, 5 are the side frames 13
As shown in Fig. 6 and Fig. 6, the bent portion bulged to the skin 16 side.
13a and a bracket 13b fixed to the bent portion 13a,
The bent portion 13a and the pad material 15 arranged on the front side of the bracket 13b. In other words, the load required to bend the original thickness of the pad material 15 (for example, 20 mm) by 25% (5 mm for 20 mm) is set to be 25 kg. And, the portion of the pad material 15 other than the first, third, fourth and fifth supporting portions 1, 3, 4, 5 is such that the load is 16 to 18 kg (for example, the thickness, density, etc. From) As shown in FIG. 7, the second and sixth support portions 2 and 6 located on the seating center line BC bulge the pan frame 17 toward the skin 16 side, so that the skin 16 and the pan frame 17 bulge. What is specified by narrowing the pad material 15 between the portion 17a and the original thickness of the pad material 15 to be, for example, 20 mm as described above, and setting the load to be 25 kg. Is.

Although it has been described that the first, third, fourth and fifth supporting portions 1, 3, 4, 5 are composed of the bent portion 13a and the bracket 13b formed on the side frame 13, and the pad material 15, the description is not limited thereto. is not. For example, the bulging portion 17a may be formed on the pan frame 17. Alternatively, a spring may be stretched between the frames 12, a bent portion may be formed in the spring, and the bracket may be fixed. Further, a sub bracket may be installed between the side frames 13 and 14, a bent portion may be formed in the sub bracket, and the bracket may be fixed. For the seventh, eighth, and ninth support portions 7, 8, 9 of the seat cushion 11, the pan frame 17 having the bulging portion 17a is also applied.

Also, the figure discloses a sheet S covered with a uniform skin 16,
A member having a higher hardness than the other portions may be used only for the first to ninth support portions 1 to 9.

Therefore, according to the present embodiment, the first to ninth support portions 1 to 9 uniformly contact the back, waist, and thighs of most of the occupants (98% of Japanese according to the measurement results). Because it supports, the driving posture is fixed, the position of the foot is stable, the position of the brake pedal is clear, erroneous operation can be prevented, and even if you ride for a long time, you will not get tired easily.

[Effect]

As described above, according to the present invention, the first support portion that supports the scapula around the upper body of the occupant, the second support portion that supports the spine around the upper body, and the third support that supports around the upper back muscles. 4th to 6th supporting the waist and waist
The seat back includes at least a seat back having a support portion, at least a seventh and an eighth support portion for supporting the thigh of the lower body of the occupant, and a ninth support portion for supporting the periphery of the caudal bone of the lower body of the occupant. And a seat cushion supporting the first support portion, and the first support portion is located at a position of 300 mm upward from the hip point along the torso line,
Approximately 55 mm to the rear from the torso line, and to the left and right of the seat back seating center line
The first intersection point at a position of 150 mm, and the position 300 mm upward from the hip point along the torso line, and the distance rearward at a right angle from the torso line is 32, 37, 58 mm and 173, 176, 15 to the left and right of the seating center line of the seat back
A second straight line connecting the first crossing point and the fourth crossing point, a straight line connecting the second crossing point and the third crossing point, and a rear side of the seat back. With a curve having a curvature of 140 mm including the first and second intersections having the center point, and a curve having a curvature of 180 mm including the third and fourth intersections having the rear side of the seat back as the center point. The second support is located within the enclosed area and is located 300 mm above the hip point along the torso line.
Be positioned in an area surrounded by straight sides of 114 mm and 120 mm in a rearward direction at a right angle to the torso line and straight sides of 8 mm to the left and right of the seating center line. The third support portion is located 300 mm upward from the hip point along the torso line,
Approximately 100 mm to the rear of the torso line at a rearward dimension, and 107 mm to the left and right of the seat back seating center line, and the first intersection point of 300 mm upward from the hip point along the torso line.
At the position of millimeter, the rearward dimension of the torso line is approximately 90, 104 mm, and 127, 12 to the left and right of the seat back center line of the seat back, respectively.
A straight line connecting the first intersection and the fourth intersection, and a straight line connecting the second intersection and the third intersection, and the seat back of the seat back. A curve having a curvature of 80 millimeters including the first and second intersections with the front side as the center point and the third and fourth intersections with the front side of the seat back as the center point.
The fourth support portion is located 50 mm above the hip point along the torso line from the seating center line and is located within an area surrounded by a curve having a curvature of millimeter. 151 mm to the left and right, a first intersection point where the dimension of the rear is approximately 64 mm at a right angle from the torso line, and the dimension of 50 mm upward from the hip point along the torso line. Approximately right angle from the line
It has 50, 60, 73 mm and second to fourth intersections at positions 160, 173 and 163 mm to the left and right of the seating center line of the seat back, and is surrounded by straight lines connecting the first to fourth intersections, respectively. The fifth support portion is located 50 mm above the hip point along the torso line from the hip point, is 109 mm to the left and right of the seating center line, and is substantially larger than the torso line. The first intersection point has a dimension of 109 mm in a rearward direction at a right angle, and the dimension is 50 mm upward from the hip point along the torso line. 101, 107, 115 mm, and second to fourth intersections at positions 129, 132, 112 mm to the left and right of the seating center line of the seat back, respectively. Point and the fourth
A straight line connecting the intersections, a straight line connecting the second intersections and the third intersections, and a curve having a curvature of 70 millimeters including the first intersection and the second intersection with the front side of the seat back as the center point, and The seat back is located within an area surrounded by a curve having a curvature of 70 millimeters including a third intersection and a fourth intersection with the front side of the seat back as a center point, and the sixth support portion is separated from the hip point. Located 50 mm above the torso line, 10 mm to the left and right of the seating center line, and 113 mm and 125 in the rearward direction approximately at right angles to the torso line.
It should be located in the area surrounded by the straight line connecting the intersection points of millimeters, and the 7th support part has a dimension from the hip point to the rear side along the line including the hip point of the seat cushion and parallel to the seat slide angle. In a cross section at a right angle of 50 mm, the seat cushion is positioned 156 mm to the left and right of the seating center line, and 30 mm below the horizontal line passing through the hip point and perpendicular to the seating center line. 160, 175, 16 to the left and right of the seating center line and the first intersection, respectively
The dimensions below the horizontal line that is 9 mm and passes through the hip point and is perpendicular to the seating center line are 17, 24,
A straight line connecting the first and fourth intersections, a straight line connecting the second and third intersections, and an upper side of the seat cushion. 20 including the first and second intersections centered at
A curve having a curvature of 0 mm, and a third intersection point and a fourth intersection point, which are also centered on the upper side of the seat cushion.
It is located in an area surrounded by a curve having a curvature of 200 mm including the intersection, and the eighth support part is located behind the hip point along the line parallel to the seat slide angle including the hip point of the seat cushion. In a cross section at a right angle at a position of 50 mm in the side direction, the seat cushion has a position of 135 mm to the left and right of the seating center line, and 69 mm below the horizontal line passing through the hip point and perpendicular to the seating center line. The first intersection point at the position of millimeter and the left and right sides of the seating center line are 144, 147 and 13 respectively.
6 mm below the horizontal line passing through the hip point and perpendicular to the seating center line, and the dimensions are 62 and 65, respectively.
A second straight line connecting the first crossing point and the fourth crossing point, a straight line connecting the second crossing point and the third crossing point, and an upper side of the seat cushion. A curve having a curvature of 60 mm including a first intersection and a second intersection having a center point, and a curve having a curvature of 60 mm including a third intersection and a fourth intersection having the upper side of the seat cushion as a center point. The ninth support portion is located within an area surrounded by and, and the ninth support portion is located at a position 50 mm in the rearward direction from the hip point along a line including the hip point of the seat cushion and parallel to the seat slide angle. 11 mm to the right and left of the seating center line of the seat cushion at a right angle to the seating center line passing through the hip point. It is characterized in that it is located in an area surrounded by straight lines connecting the intersections of the positions of 75 mm and 80 mm approximately at a right angle downward from the horizontal line, so that a normal driving posture can be secured, It is possible to prevent erroneous operation and to reduce fatigue.

[Brief description of drawings]

1 to 7 are views showing an embodiment of the present invention. FIG. 1 is a longitudinal sectional view, FIG. 2 is a sectional view taken along line II-II of FIG. 1, and FIG. 3 is FIG. III-III line cross section of Figure 4, Figure 4 VI of Figure 1
-VI line sectional view, FIG. 5 is a vertical sectional view of the supporting portions 1, 3, 4, 5
FIG. 6 is a perspective view thereof, and FIG. 7 is a vertical sectional view of the second, sixth, seventh, eighth and ninth supporting portions. S ... Automotive seat, 1-9 ... First support part, 10 ...
Seat back, 11 …… Seat cushion, 1A to 9A …… Area, 21a to 21d ……, 22a to 22d, 23a to 23d, 24a to 24d, 25a
〜25d, 26a〜26d, 27a〜27d, 28a〜28d, 29a〜29d …… Intersection, 30 …… Line parallel to seat slide angle, HP
...... Hip point, TR ...... Torso line, BC ...... Seating center line, SH ...... Horizontal line.

Claims (1)

[Claims] 1. A first support for supporting the upper part of the occupant's upper body around the shoulder blades
A seat back having at least a support part, a second support part for supporting the spine of the upper body, a third support part for supporting the upper part of the latissimus dorsi muscle, and fourth to sixth support parts for supporting the waist, and a lower body of the occupant. A seat cushion that supports at least the seventh and eighth support parts for supporting the circumference of the thigh and the ninth support part for supporting the circumference of the caudal bone of the lower body, and supports the seat back, The support is located 300 mm upward from the hip point along the torso line,
Approximately 55 mm to the rear from the torso line, and to the left and right of the seat back seating center line
The first intersection point at a position of 150 mm, and the position 300 mm upward from the hip point along the torso line, and the distance rearward at a right angle from the torso line is 32, 37, 58 mm and 173, 176, 15 to the left and right of the seating center line of the seat back
A second straight line connecting the first crossing point and the fourth crossing point, a straight line connecting the second crossing point and the third crossing point, and a rear side of the seat back. With a curve having a curvature of 140 mm including the first and second intersections having the center point, and a curve having a curvature of 180 mm including the third and fourth intersections having the rear side of the seat back as the center point. The second support is located within the enclosed area and is located 300 mm above the hip point along the torso line.
Be positioned in an area surrounded by straight sides of 114 mm and 120 mm in a rearward direction at a right angle to the torso line and straight sides of 8 mm to the left and right of the seating center line. The third support portion is located 300 mm upward from the hip point along the torso line,
Approximately 100 mm to the rear of the torso line at a rearward dimension, and 107 mm to the left and right of the seat back seating center line, and the first intersection point of 300 mm upward from the hip point along the torso line.
At the position of millimeter, the rearward dimension of the torso line is approximately 90, 104 mm, and 127, 12 to the left and right of the seat back center line of the seat back, respectively.
A straight line connecting the first intersection and the fourth intersection, and a straight line connecting the second intersection and the third intersection, and the seat back of the seat back. A curve having a curvature of 80 millimeters including the first and second intersections with the front side as the center point and the third and fourth intersections with the front side of the seat back as the center point.
The fourth support portion is located 50 mm above the hip point along the torso line from the seating center line and is located within an area surrounded by a curve having a curvature of millimeter. 151 mm to the left and right, a first intersection point where the dimension of the rear is approximately 64 mm at a right angle from the torso line, and the dimension of 50 mm upward from the hip point along the torso line. Approximately right angle from the line
It has 50, 60, 73 mm and second to fourth intersections at positions 160, 173 and 163 mm to the left and right of the seating center line of the seat back, and is surrounded by straight lines connecting the first to fourth intersections, respectively. The fifth support portion is located 50 mm above the hip point along the torso line from the hip point, is 109 mm to the left and right of the seating center line, and is substantially larger than the torso line. The first intersection point has a dimension of 109 mm in a rearward direction at a right angle, and the dimension is 50 mm upward from the hip point along the torso line. 101, 107, 115 mm, and second to fourth intersections at positions 129, 132, 112 mm to the left and right of the seating center line of the seat back, respectively. Point and the fourth
A straight line connecting the intersections, a straight line similarly connecting the second intersections and the third intersections, and a curve having a curvature of 70 millimeters including the first intersection and the second intersection having the front side of the seat back as the center point, Similarly, the seat back is located in an area surrounded by a curve having a curvature of 70 mm including a third intersection and a fourth intersection with the front side of the seat back as a center point, and the sixth support portion has the hip point. From the seating centerline to the left and right with a dimension of 50 mm on the upper side along the torso line, and a straight line connecting the intersections of the dimensions of 113 mm and 125 mm to the rear approximately perpendicular to the torso line. Located in the enclosed area, the seventh support part includes a line parallel to the seat slide angle including the seat cushion hip point. In a right-angled cross section at a position of 50 mm from the hip point to the rear side along the seat cushion, the seat cushion is positioned 156 mm to the left and right of the seating center line of the seat cushion, and to the seating center line passing through the hip point. The first intersection point, which is located 30 mm below the horizontal line at a right angle, and 160, 175, 16 respectively to the left and right of the seating center line.
The dimensions below the horizontal line that is 9 mm and passes through the hip point and is perpendicular to the seating center line are 17, 24,
A straight line connecting the first and fourth intersections, a straight line connecting the second and third intersections, and an upper side of the seat cushion. 20 including the first and second intersections centered at
A curve having a curvature of 0 mm, and a third intersection point and a fourth intersection point, which are also centered on the upper side of the seat cushion.
It is located in an area surrounded by a curve having a curvature of 200 mm including the intersection, and the eighth support part is located behind the hip point along the line parallel to the seat slide angle including the hip point of the seat cushion. In a cross section at a right angle at a position of 50 mm in the side direction, the seat cushion has a position of 135 mm to the left and right of the seating center line, and 69 mm below the horizontal line passing through the hip point and perpendicular to the seating center line. The first intersection point at the position of millimeter and the left and right sides of the seating center line are 144, 147 and 13 respectively.
6 mm below the horizontal line passing through the hip point and perpendicular to the seating center line, and the dimensions are 62 and 65, respectively.
A second straight line connecting the first crossing point and the fourth crossing point, and a straight line connecting the second crossing point and the third crossing point, and the upper side of the seat cushion. Including the first and second intersections with the center point of 60
Located in an area surrounded by a curve having a curvature of 60 mm and a curve having a curvature of 60 mm including a third intersection and a fourth intersection having the upper side of the seat cushion as a center point, and 9 The support portion has a right-angled cross-section at a position of 50 mm from the hip point along the line parallel to the seat slide angle, including the hip point of the seat cushion, to the rear side, and from the seating center line of the seat cushion. 11 mm to the left and right, approximately 75 mm and 80 mm below the horizontal line that is perpendicular to the seating center line that passes through the hip point, and is located within an area surrounded by straight lines connecting the intersections of the positions of 75 mm and 80 mm. Characteristic automobile seat.