JP2002087198A - Air bag module-mounted seat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To form an air bag module-mounted seat allowing an accurate positioning of an air bag module for easy assembly on a side support part, allowing easy repair and replacement at a low cost, and providing a freedom degree in design. SOLUTION: The side support part 1 of a seat back B is formed separately from seat face part 2 at the center thereof, and the air bag module 3 is assembled in the side support part 1 integrally with each other to form a unit. The side support part 1 formed integrally with the air bag module 3 is installed on the side of the seat face part 2 to assemble the seat back B.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in an airbag module-equipped seat in which an airbag is equipped so that it can be inflated and deployed outward from a break provided in a side support portion of a seatback by gas pressure generated from an inflator. Things.

[0002]

2. Description of the Related Art Generally, in order to equip a side support portion of a seat back with an air bag module, the air bag module is attached and fixed to a side plate of a seat back frame, and the air bag module is provided on a side portion of a back pad. Assemble the back pad to the seat back frame by storing it in the cavity, and further, cover the back pad including the cavity with the trim cover,
The airbag module is being assembled while assembling the seat back as a whole.

In the airbag module-equipped seat, the airbag module must be handled as one component during the assembly process of the entire seatback, so that not only is it troublesome to handle, but also the repair and replacement requires the entire seatback. Must be targeted. In addition, since the design is determined by the entire seat back, it is not possible to have a unique degree of freedom as a mounting portion of the airbag module.

[0004]

An object of the present invention is to provide an air bag module in which an air bag module is accurately positioned, easily assembled to a side support portion, can be easily repaired and replaced at a low cost, and has a degree of freedom in design. It is intended to provide a seat equipped with a bag module.

[0005]

In the airbag module-equipped seat according to the first aspect of the present invention, the side support portion of the seat back is formed separately from the central seat surface portion, and the airbag module is formed on the side support portion. The seat back is assembled by integrally assembling the inside into a unit, and attaching a side support portion integrated with the airbag module to a side portion of the seat surface portion.

According to a second aspect of the present invention, there is provided an airbag module-equipped seat, comprising a pad having a hollow portion on a side portion, and a trim cover having a break portion formed by a seam. In addition to assembling into the cavity, the side support part that wraps the pad with the trim cover by matching the inflation and deployment direction of the air bag and the break part of the trim cover is attached to the side of the seat surface as a side support part integrated with the air bag module Have been.

The airbag module-equipped sheet according to the third aspect of the present invention is provided with an exterior frame formed by resin molding into a predetermined three-dimensional shape by providing a broken portion by a thin portion on the inner surface side, and The airbag module is mounted on the side of the seat surface as a side support unit integrated with the airbag module, with the airbag module assembled inside the exterior frame in accordance with the direction of inflation and deployment of the airbag.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to the accompanying drawings, in the illustrated embodiment, a side support portion 1 is separated from a center seat portion 2 as shown in FIG. The airbag module (not shown) is formed in the body, and is pre-assembled inside the side support portion 1 to form a unit. The side support portion 1 integrated with the airbag module is attached to the side portion of the seat surface portion 2 to secure the seat back B. Applied to assemble.

The side support portion 1 includes a front portion 1a which rises upward from a critical portion of the center seat surface portion 2 and an upward slope, a side portion 1b opposed to the vehicle body side portion or located at the center of the vehicle body, and a seat back B. And a back portion 1c that goes around the back side of the vehicle. The illustrated side support portion 1 is formed separately from the central seating surface portion 2 as a mounting portion of the airbag module, with the lower portion from the middle abdomen except for the vicinity of both shoulders of the seat back B.

In the embodiment shown in FIG. 2, the side support portion 3 is assembled from a pad 10 made of urethane foam or the like and a trim cover 11 made of real leather, synthetic leather, fabric or the like, and the airbag module 3 is connected to the pad 1.
1 is assembled.

The airbag module 3 includes an airbag 30 which is folded so as to be inflatable and deployable by gas pressure.
The inflator 31 for gas generation is held by a retainer 32 and integrally assembled inside the air bag 30 near the mounting base, and a tightening bolt 33 of the retainer 32 is protruded to the outside and accommodated in a module case 34, and the entire module is assembled. It is configured by holding with a holder 35.

The pad 10 is provided with a seatback B from a front portion which rises upward from the center seating surface portion 2.
A part which is integrally formed up to a part corresponding to the back part which turns around the back side is attached. The pad 10 is provided with a cavity 12 for accommodating the airbag module 3 in a portion corresponding to a side portion.

The trim cover 11 has a front cover portion 11a.
The pad 10 is sewn so as to entirely cover the pad 10 from the side cover 11b. The trim cover 11 is provided with a break 13 at the seam between the front cover 11a and the side cover 11b. In addition, by sewing separately to the terminals of the front cover portion 11a and the side cover portion 11b, two webbings 14, 15 made of a material having a small expansion are provided inside the trim cover 11.

With these parts, the airbag module 3 is assembled into the cavity 12 of the pad 10 and
By wrapping the pad 10 with the trim cover 11 in accordance with the inflation and deployment direction of the airbag 30 and the break portion 13 of the trim cover 11, the pad 10 is configured as a side support unit 1 integrated with the airbag module 3.

In the construction, the webbings 14 and 15 wrap one side 14 from the front side of the pad 10 into the inside of the cavity 12,
The other 15 is placed on the front side of the airbag module 3 and rolled into the inside of the hollow portion 12 to remove the module holder 35.
By connecting the airbag module 3 to the hooks 36a and 36b provided on the flange portion of the trim cover 11, the airbag module 3 is assembled so as to directly wrap it from the break portion 13 of the trim cover 11.

The trim cover 11 is provided with a pull-in cord 11.
c, 11d to the front cover 11a and the side cover 1
1b, hooks 37a, 37b provided on the side surfaces of the module holder 35 with the front cover portion 11a wrapped from the front side to the inner side of the pad 10 and the side cover portion 11b covered on the back surface of the pad 10. The terminal can be fixed by hooking it with the drop cords 11c and 11d.

[0017] The side support portion 1 configured as described above.
Is the module holder 3
5, the webbings 13 and 14 are connected to the module holder 35 through the cut portion 13 of the trim cover 11, and the front cover portion 11 a and the side cover portion 11 b of the trim cover 11 are fixed to the module holder 35 at the ends. Thereby, it is assembled as a side support part integrated with the airbag module 3 based on the module holder 35.

As shown in FIG. 3, the center seating surface portion 2 has a substantially quadrilateral seat back frame 20 as a base frame, and a side plate 21 provided on a side portion of the seat back frame 20.
The center pad 22 is wrapped with the trim cover 23 and mounted on the tension spring 24 of the seat back frame 20, and at the same time, the terminal of the trim cover 23 is pulled and fastened to the tension spring 24 with the hanging bag 25 so as to be normal. Assembled.

The central seating portion 2 is provided for one side of the airbag module, except for the side support portion 1 on one side opposite to the vehicle body side portion, or for both sides of the airbag module as shown in FIG. Assembling except for the side support portions 1 on both sides.

The center seat surface 2 has a side support.
The first part 1 is provided with the module holder 35 of the airbag module 3 and the side plate 2 of the seat back frame 20.
1, and tighten the nut 36 on the plate surface of the side plate 21 with the tightening bolt 33.
, And is attached to the side surface of the seat surface 2 as a whole. A bag board 4 for enclosing the central seating surface 2 from the rear side together with the side support portion 1.
And is assembled as a seat back B.

In the airbag module-equipped seat configured as described above, the airbag module 3 is assembled in advance and the side support portion 1 is assembled separately from the seat surface portion 2. While the airbag module 10 is handled, the airbag module 10 can be easily assembled to the side pad portion 11 and the entire side support portion 1 can be easily assembled.

Since the side support portion 1 is assembled separately from the center seat surface portion 2, even if the bank portion is high, the airbag module 10 can be assembled at an appropriate position and the shape of the bank portion can be improved. You can freely select your own form including Also, since the side support portion can be easily repaired and replaced as a single unit, it can be configured as an inexpensive airbag module-equipped seat.

The embodiment shown in FIG. 5 is provided with a side support 1 ′ having an exterior frame 5 formed of a synthetic resin such as Po as a base and assembling the airbag module 3 inside the exterior frame 5. Have been. The airbag module 3 is shown in FIG.
Components common to those shown in FIG. 3 are denoted by the same reference numerals.

The side support portion 1 'is formed integrally from a portion corresponding to the front portion which rises upward from the center seating portion 2 to a portion corresponding to the back portion which goes around the back of the seat back B, and is broken by the thin portion. An outer frame 5 having a portion 5a provided on an inner surface thereof;
The airbag module 3 is assembled inside the exterior frame 1a so that the airbag module 3a and the airbag 30 are inflated and deployed in the same direction.

The exterior frame 5 can be formed as a resin single layer body. Alternatively, the trim cover 5b or the front cover film may be wound on the front surface side, adhered, fixed and bonded, or integrally molded to form a laminate.

In the side support portion 1 ′, the internal space of the bulging portion located on the front side of the exterior frame 5 can be used as a housing for the airbag module 3. The exterior frame 1a is provided with frame edges 5c and 5d such as ribs or partition walls on the inner surface to reinforce the entire frame and to hold the airbag module 3 on the flange portion of the module holder 35.
It can be formed so as to be positioned and fixed at a 'and 36b'.

In the side support portion 1 ', since the internal space of the outer frame 5 is used as a space for accommodating the airbag module 3, even if the airbag module 3 does not have the module case 34, the airbag 30 is folded and folded. The module holder 35 can be accommodated in the base by directly supporting the module holder 35.

As the side support portion 1 ′, since the airbag module 3 can be assembled and fixed inside the outer frame 5 by the module holder 35, the module holder 35 is applied to the side plate 21 of the seat back frame 20, and the fastening bolt 33 is used. 2 and 3, it is possible to assemble and fix it to the side surface of the seat surface 2 in the same manner as in the embodiment shown in FIGS.

Although the above-described embodiment has been described based on the seat back having the separately provided headrest, FIG.
As shown in the above, the present invention can be similarly applied to a headrest integrated high back seat. Further, in any of the embodiments, the side support portion 1 is configured to be movable separately from the center seating portion 2, so that the side support function is improved while the side collision buffering function is provided by the airbag. it can.

[0030]

As described above, according to the airbag module-equipped seat according to the present invention, the side support portion of the seat back is formed separately from the center seat portion, and the airbag module is provided inside the side support portion. The airbag module is integrated into a unit, and the airbag module is integrated with the side support section on the side of the seat to assemble the seat back. Easy to assemble, easy to assemble as a side support part, you can freely select your own form as a side support part, you can easily repair and replace it, and it can be inexpensively configured as an airbag module equipment seat it can.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an airbag module-equipped seat according to the present invention, divided into a side support portion and a central seat portion.

FIG. 2 is a cross-sectional view illustrating an example of a side support portion provided in the airbag module-equipped seat according to the present invention.

FIG. 3 is a cross-sectional view showing the airbag module-equipped seat provided with the side support portion of FIG. 2 on one side.

FIG. 4 is an explanatory view showing hatched side support portions provided on the airbag module-equipped seat according to the present invention.

FIG. 5 is a cross-sectional view showing one side of an airbag module-equipped seat having another side support portion of the present invention.

FIG. 6 is an explanatory view showing hatched side support portions in an airbag module-equipped seat according to another example of the present invention.

[Explanation of symbols]

 B Seat back 1 Side support portion 10 Pad 11 Trim cover 12 Cavity portion of pad 13 Break portion of trim cover 1 'Side support portion 5 Exterior frame 5a Break portion of exterior frame 2 Seat portion 3 Airbag module 30 Airbag 31 Inflator

Claims (3)

[Claims] An airbag module-equipped seat in which an airbag is inflatable and deployable outward from a broken portion provided in a side support portion of a seat back by a gas pressure generated from an inflator, wherein the side support portion of the seat back is positioned at a center. The airbag module is formed separately from the seating surface of the seat, and the airbag module is integrally assembled inside the side support to form a unit.The side support integrated with the airbag module is attached to the side of the seating surface to assemble the seat back. A seat equipped with an air bag module. 2. A pad having a cavity provided on a side portion thereof, and a trim cover having a break portion formed by a seam. The airbag module is assembled to the cavity of the pad, and the inflation and deployment direction of the airbag and the trim are adjusted. 2. The airbag module equipment according to claim 1, wherein a side support portion in which the pad is wrapped with the trim cover in accordance with the broken portion of the cover is attached to a side portion of the seat surface portion as a side support portion integrated with the airbag module. Sheet. 3. An airbag module comprising: an exterior frame formed by resin-molding a predetermined three-dimensional shape with a break portion formed by a thin portion provided on an inner surface side; The airbag module-equipped seat according to claim 1, wherein the side support portion assembled inside the frame is attached to a side portion of the seat portion as a side support portion integrated with the airbag module.