JP2002301977A - Mounting structure of seat cushion - Google Patents

Abstract

PROBLEM TO BE SOLVED: To lighten a seat cushion by dispensing with a wire frame, etc., in the seat cushion and to improve workability by mounting the seat cushion on the car body side simultaneously with terminal processing of its surface skin. SOLUTION: In this mounting structure of the seat cushion, the seat cushion 20 is mounted on the car body side as the seat cushion 20 is placed on a frame member of a car body (cross member 12) and a terminal part of the surface skin 24 on the seat cushion 20 (front end part 24a) is connected to the frame member.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for attaching a seat cushion of an automobile rear seat to a vehicle body.

[0002]

2. Description of the Related Art As a technique of this kind, a seat mounting structure disclosed in, for example, Japanese Patent Application Laid-Open No. 7-223468 is known. In this technique, a wire frame provided inside a seat cushion is formed with an insertion portion projecting outside the seat cushion.
The seat cushion is attached to the vehicle body by inserting the insertion portion into a hole formed in the floor of the vehicle body and fixing the seat cushion so as not to come off.

[0003]

In the above technique, since it is essential to provide a wire frame inside the seat cushion, the weight reduction of the seat cushion is hindered, and the work of attaching the seat cushion is complicated. It is. An object of the present invention is to solve the above-mentioned problems, and an object of the present invention is to reduce the weight by eliminating the need for a wire frame or the like in a seat cushion, and to attach a seat cushion to a vehicle body side at the same time as a terminal treatment of a skin thereof. It is to improve sex.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to achieve the above object, and the invention according to claim 1 is a mounting structure of a seat cushion, wherein the seat cushion is mounted on a frame member of a vehicle body. The seat cushion is mounted on the vehicle body side by being placed and a terminal portion of a skin in the seat cushion is coupled to the skeletal member. With this configuration, a wire frame or the like for attaching the seat cushion to the vehicle body side is not required, and not only can the seat cushion be reduced in weight, but also the terminal treatment of the skin and the work of attaching the seat cushion to the vehicle body side can be performed simultaneously. It is advantageous to be done.

According to a second aspect of the present invention, there is provided the seat cushion mounting structure according to the first aspect, wherein a groove is provided in the skeleton member along a longitudinal direction thereof, and the groove is provided in the groove. The ends of the epidermis are joined by plugging. According to this configuration, the terminal processing of the skin is easy and the finished state is good.

According to a third aspect of the present invention, there is provided the seat cushion mounting structure according to the second aspect, wherein a terminal portion of the floor carpet is inserted into a groove of the skeletal member. In this case, the floor carpet is also subjected to the terminal treatment at the same portion as the skin of the seat cushion, and the terminals are in contact with each other on one line, so that the appearance is improved.

According to a fourth aspect of the present invention, there is provided the seat cushion mounting structure according to the third aspect, wherein a clip is attached to one end portion of the skin and the floor carpet. The clip can be connected to the groove of the skeletal member by being inserted, and is set so as to leave a housing space for inserting the other end portion of the skin and the floor carpet inside the groove in the connected state. Thereby, the vertical width of the groove can be set as small as possible, and the strength of the skeletal member can be secured.

According to a fifth aspect of the present invention, there is provided the seat cushion mounting structure according to the third aspect, wherein clips are attached to respective terminal portions of the outer skin and the floor carpet, and these clips are attached. Are inserted into the groove of the skeletal member in a vertical positional relationship, and are individually connected at positions displaced in the depth direction in the groove, whereby the connecting portion of one clip is positioned by the upper and lower walls in the groove. Have been. In this configuration, the clip positioned by the wall inside the groove is inserted first and connected to the groove,
The clip inserted later can be properly connected to the groove without biting or the like.

According to a sixth aspect of the present invention, there is provided the seat cushion mounting structure according to the fifth aspect, wherein the two clips overlap each other at least at a joint portion between the upper and lower surfaces of the groove. Therefore, when both clips are connected to the groove, these clips function so as to maintain the connected state.

The invention described in claim 7 is the second or third invention.
The seat cushion mounting structure described in the above,
The skeleton member is an extruded product, and the groove is formed at the time of extrusion. Thereby, the groove can be easily formed only by changing the extrusion mold of the skeleton member.

The invention described in claim 8 is the second or third invention.
The seat cushion mounting structure described in the above,
The groove is formed integrally with a reinforcing rib located in a closed cross section of the skeleton member. With this configuration, the shape of the groove at the time of extrusion molding of the skeleton member is stabilized, and the rigidity thereof is also increased.

[0012]

Embodiments of the present invention will be described below. FIG. 1 is a perspective view showing a skeleton of a vehicle body 10, and FIG. 2 is a sectional view showing a mounting structure of a rear seat. The center floor cross member 12 and the rear floor cross member 14 shown in these drawings constitute frame members of the vehicle body 10, respectively. Also these cross members 1
Reference numerals 2 and 14 denote extruded products made of an aluminum alloy or the like, each of which has a hollow and rectangular cross section.

As shown in FIG. 2, both cross members 1 are used.
A seat cushion 20 as a rear seat is placed on the upper surface of the cushion panel 16 that is arranged in a bridging manner between the cushion panels 2 and 14. However, the front portion of the seat cushion 20 rests on the center floor cross member 12. Note that the seat cushion 20 has a configuration in which a cushion pad 22 formed of natural fibers, resin fibers, or a mixed fiber thereof is simply covered with an outer skin 24.

FIG. 3 is a perspective view showing the appearance of the seat cushion 20, FIG. 4 is a cross-sectional view showing an enlarged front side mounting portion of the seat cushion 20 in FIG. 2, and FIG. FIG. 6 is an enlarged cross-sectional view of a rear-side mounting portion of the seat cushion 20, and FIG. 6 is a cross-sectional view illustrating a side mounting portion of the seat cushion 20. The structure of the seat cushion 20 will be described in detail with reference to these drawings.

First, the outer skin 24 is made of the cushion pad 2.
2 is attached to a part of the surface (usually the upper surface) with an adhesive. And, in the front end portion 24a of the skin 24,
A clip 26 made of synthetic resin continuous in the width direction is sewn (FIG. 4). A flat fastener 28 is sewn on the back surface of the rear end portion 24b of the skin 24, and the flat fastener 28 is
2 can be entangled with the fibers constituting the pad on the lower rear surface of the pad (FIG. 5).

Flat fasteners 30 and 32 are sewn on the back and front surfaces of both sides 24c of the skin 24, respectively. The flat fasteners 30 on the back side of the both side portions 24c can be entangled with the fibers constituting the pad on the side lower surface of the cushion pad 22, and can be stopped.
The flat fastener 32 on the front side can be stopped by being entangled with the flat fastener 39 on the other side bonded to the side rim 38 (FIG. 6).

As shown in FIGS. 3 and 5, the rear portion of the cushion pad 22 has two holes 23 opened at the lower surface thereof. On the other hand, stud pins 36 are fixed on the upper surface of the cushion panel 16 at locations corresponding to the holes 23 (FIG. 5). When these stud pins 36 fit into the holes 23, the cushion pad 22 is positioned with respect to the cushion panel 16.

As is apparent from FIG. 4, on the front surface of the center floor cross member 12, which is a frame member of the vehicle body 10,
A groove 34 for inserting and connecting the clip 26 is provided continuously in the longitudinal direction (vehicle width direction). Moreover, a synthetic resin clip 42 sewn to the rear end portion of the floor carpet 40 is inserted into and joined to the groove 34. The clip 42 is also formed continuously in the width direction of the floor carpet 40.

FIG. 7 is an enlarged sectional view showing a state in which the clips 26 and 42 have been removed from the grooves 34 of the cross member 12. As is apparent from this drawing, the groove 34 is formed in the reinforcing rib 1 located inside the hollow (in the closed cross section) of the cross member 12.
3 and is formed by a wall. In addition, this groove 34
Is the clip 2 of the skin 24 and the floor carpet 40
6 and 42 are set in a storage space in which the upper and lower positions can be inserted in a vertical positional relationship.

The groove 34 has an engagement recess 34a located on the upper surface side inside the groove 34 and an engagement recess 34b located on the lower surface side inside the groove 34. These engagement recesses 34a, 3
4b is an engagement recess 3 below the upper engagement recess 34a.
The grooves 4b are arranged to be shifted from each other in the depth direction of the groove 34 such that the groove 4b is located at the back. And engaging recess 3
4b, the reinforcing ribs 13 and the grooves 34
The wall 34d is in a state of being extended toward the entrance side of the wall.

The clip 42 of the floor carpet 40
Is inserted into the engagement recess 34b located on the lower side, and then the clip 26 of the skin 24 is inserted into the engagement recess 34a located on the upper side of the groove 34. These two clips 26, 42 are respectively connected to the respective hook tips 26a, 42a.
Are engaged with the engaging recesses 34a and 34b of the groove 34. These hook tip portions 26a, 42a are individually connected to the hook base 2 via the hook curved portions 26b, 42b.
6c, 42c. Therefore, both clips 2
The hooks 6 and 42 have a predetermined elasticity (flexibility) between the hook tip portions 26a and 42a and the hook base portions 26c and 42c.

In the clips 26 and 42, the front end portion 24a of the skin 24 or the floor carpet 40
At the end on the side sewn to the rear end portion, overhanging pieces 26d and 42d are formed respectively. These overhanging pieces 26d, 42d are located outside the groove 34 even when the clips 26, 42 are inserted into the groove 34, and have a function of pushing the skin 24 or the floor carpet 40 in the respective thickness directions at that position. Fulfill.

Next, a procedure for attaching the seat cushion 20 to the vehicle body 10 will be described. First, the rear end portion 24b of the skin 24 in the seat cushion 20
Is fixed to the rear lower surface of the cushion pad 22 by the flat fastener 28 (FIG. 5). In parallel with this, both side portions 24c of the outer skin 24 are respectively fixed to the lower surfaces on both sides of the cushion pad 22 by the flat fasteners 30 on the back surface side (FIG. 6).

Next, as shown in FIG. 2, the seat cushion 20 (cushion pad 22) is placed on the upper surface of the cushion panel 16. At this time, cushion pad 2
2 is the center floor cross member 12
And the rear portion of the cushion pad 22 is positioned by fitting the two stud pins 36 of the cushion panel 16 into the holes 23.
The entrances of the two holes 23 are slopes that open outward as shown in FIG. Therefore, when the cushion pad 22 is placed on the cushion panel 16, even if there is a slight displacement between the hole 23 and the stud pin 36, these can be guided and accurately fitted.

By placing the seat cushion 20 on the vehicle body 10 side as described above, the both sides 2
The flat fastener 32 on the front side of 4c is entangled with the mating flat fastener 39 bonded to the side rim 38 and stopped (FIG. 6). As a result, both sides of the seat cushion 20 are fixed to the vehicle body 10. For fixing the front portion of the seat cushion 20, the clip 42 of the floor carpet 40 is first inserted into the groove 34 of the cross member 12,
Next, the clip 26 of the epidermis 24 is inserted.

The clip 42 of the floor carpet 40
The hook tip 42a is inserted downward into the inside of the groove 34 as described above with the hook tip 42a facing downward. As a result, the hook curved portion 42b of the clip 42 is guided by the arc portion 34c in the lower engaging concave portion 34b,
a enters the engaging recess 34b and engages with each other (FIG. 4). In this state, the position of the clip 42 from the hook tip 42a to the tip of the hook base 42c is regulated by the bottom surface of the engaging recess 34b and the wall 34d from above and below.

The clip 26 of the skin 24 is inserted into the inside of the groove 34 from behind the clip 42 with its hook tip 26a facing upward. This allows clip 2
6, the hook curved portion 26b and the hook base 26c are guided by the hook base 42c of the clip 42, and finally the hook tip 26a enters the upper engaging recess 34a and engages with each other (FIG. 4). When the clip 26 of the skin 24 is inserted into the groove 34, since the clip 42 of the floor carpet 40 is positioned in the vertical direction as described above inside the groove 34, the clip 26 inserted later into the clip 42. Does not cause biting.

The clips 26 and 42 inserted into the grooves 34 as described above are located at positions shifted in the depth direction, and the respective hook bases 26c and 42c are in contact with each other and overlap each other. The elasticity between the hook tip portions 26a, 42a and the hook base portions 26c, 42c functions to hold the clips 26, 42 in the groove 34 with each other. Thus, the clips 26 and 42
Mainly, the hook bases 26c, 4 extend from the hook tip portions 26a, 42a via the hook curved portions 26b, 42b.
The portion leading to 2c functions as a “coupling portion” for the groove 34.

By the above processing, the seat cushion 20
Is attached to the vehicle body 10 side. For the front portion of the seat cushion 20, the terminal treatment of the skin 24 and the work of attaching the seat cushion 20 to the cross member 12 which is a skeleton member of the vehicle body 10 are performed at the same time.
On the front side of the cross member 12, the terminal treatment of the floor carpet 40 is also performed on the same line as the skin 24, so that the skin 24 and the floor carpet 40
The terminals are in contact with each other on one line to improve the appearance.

The two clips 26 and 42 are connected to the projecting piece 2 located on the front side of the cross member 12.
6d and 42d.
The skin 24 and the floor carpet 40 are extruded in the respective thickness directions by d and 42d (FIG. 4). As a result, the terminal portions of the skin 24 and the floor carpet 40 become continuous with no gap therebetween, and the appearance thereof is further improved. The overhanging pieces 26d and 42d also serve to facilitate the work of inserting the clips 26 and 42 into the grooves 34 of the cross member 12.

When the seat cushion 20 is to be detached from the vehicle body for recycling or the like, first, the front end portion 24a of the skin 24 is pulled to pull out the clip 26 from the groove 34, and then the clip 4 of the floor carpet 40.
2 is pulled out of the groove 34. By lifting the seat cushion 20 from the cross member 12 and the cushion panel 16 in this state, the seat cushion 20 can be easily removed from the vehicle body 10 side. Also, regarding disassembly of the seat cushion 20 itself, since a wire frame or the like is not inserted into the cushion pad 22, the work is easy and suitable for recycling.

While the preferred embodiment of the present invention has been described with reference to the drawings, this embodiment can be easily modified or modified without departing from the spirit of the present invention. For example, in order to achieve the purpose of reducing the weight of the seat cushion 20 and improving the workability of mounting the seat cushion 20, the terminal treatment of the floor carpet 40 has no direct relation, and Is sufficient. In addition, the skin 24
When the above-mentioned clips 26 and 42 are used for the terminal portion of the floor carpet 40, these clips 26 and 42
On the other hand, concave and convex portions may be provided which engage with each other when inserted into the groove 34 of the cross member 12. In addition, it is also possible to insert these clips 26 and 42 individually into grooves formed individually on the front surface of the cross member 12 and connect them. Further, both clips 26 and 42 may be connected to a protrusion formed on the front surface of the cross member 12 instead of the groove 34.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a skeleton of a vehicle body.

FIG. 2 is a sectional view showing a mounting structure of a rear seat.

FIG. 3 is a perspective view showing an appearance of a seat cushion.

FIG. 4 is an enlarged cross-sectional view of a front mounting portion of the seat cushion.

FIG. 5 is an enlarged cross-sectional view of a rear mounting portion of the seat cushion.

FIG. 6 is a sectional view showing a side mounting portion of the seat cushion.

FIG. 7 is an enlarged sectional view showing a state where a clip is removed from a groove of a cross member.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Body 12 Cross member (skeletal member) 20 Seat cushion 24 Skin 26 Clip 34 Groove 40 Floor carpet 42 Clip

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Kunio Nishiyama, 25, Kamitoike, Yoshiwara-cho, Toyota-shi, Aichi Prefecture Inside Arako Co., Ltd. (72) Inventor Teruyuki Minami 1-Toyota-cho, Toyota-shi, Aichi Prefecture Toyota Motor Corporation F Term (reference) 3B087 DE03

Claims (8)

[Claims] 1. A seat in which a seat cushion is mounted on a skeletal member of a vehicle body, and a terminal portion of a skin of the seat cushion is coupled to the skeletal member so that the seat cushion is attached to the vehicle body. Cushion mounting structure. 2. The seat cushion mounting structure according to claim 1, wherein a groove is provided in the skeleton member along a longitudinal direction thereof, and a terminal portion of the skin is inserted into the groove. Seat cushion mounting structure combined with. 3. The seat cushion mounting structure according to claim 2, wherein a terminal portion of the floor carpet is connected to the groove of the skeletal member by insertion. 4. The mounting structure for a seat cushion according to claim 3, wherein a clip is mounted on one end portion of the skin and the floor carpet, and the clip is a groove of the skeletal member. And a seat cushion mounting structure which is set in such a manner as to be insertable into the groove and leave a housing space for inserting the other end of the skin and the floor carpet inside the groove in the connected state. 5. The seat cushion mounting structure according to claim 3, wherein clips are attached to respective terminal portions of the outer skin and the floor carpet, and these clips are inserted into grooves of the skeleton member. On the other hand, the seat cushion is inserted in a vertical positional relationship and is individually connected at a position shifted in the depth direction in the groove, whereby the connecting portion of one clip is positioned by the upper and lower walls in the groove. Construction. 6. The seat cushion mounting structure according to claim 5, wherein the clips overlap each other at least at a joint portion between the upper and lower surfaces of the groove. 7. The seat cushion mounting structure according to claim 2, wherein the skeleton member is an extruded product, and the groove is formed at the time of extrusion molding. . 8. The seat cushion mounting structure according to claim 2, wherein the groove is formed integrally with a reinforcing rib located in a closed cross section of the skeletal member. Construction.