JP2002321592A - Seatbelt device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problem of a conventional device that separation of a seat cushion via a seatbelt is easy to occur due to collision load. SOLUTION: This invention is equipped with a belt tung 14 attached to a side of a seat cushion 13 supported by an auto body floor 10 via a seat leg 12, a first seatbelt 17 rolled and installed on a first retractor 16 fixed on an inner wall of the other side wall of which the seat cushion is attached, a second retractor 18 fixed on the auto body floor 10, and a second seatbelt 19 rolled and installed on the second retractor. At the end of the first seatbelt, a buckle which is attachable/detachable to the belt tung is installed, and the end 19a of the second seatbelt is fixed to around the belt tung of the seat cushion via an anchor section 21.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a so-called seat belt device attached to, for example, an auxiliary seat of a one-box vehicle.

[0002]

2. Description of the Related Art As is well known, a two-point seat is provided on an emergency auxiliary seat provided at a side of a central seat of a one-box vehicle, for example, to ensure the safety of an occupant in a collision or the like. A belt device is installed. As one of them,
For example, there is one as shown in FIGS.

[0003] Briefly, this conventional two-point seat belt device is provided on an auxiliary seat 1 comprising a seat cushion 3 and a seat back 4 on a seat leg 2 fixed to a vehicle body floor. 3, a belt buckle 5 fixed to one side of the seat cushion 3 and a seat cushion 3
Retractor 6 fixed to the seat leg 2 on the other side
And a seat belt 7 wound around the retractor 6 so as to be able to be pulled out. Further, a tongue 8 which can be disengaged from the belt buckle 5 is attached to a front end portion of the seat belt 7.

Therefore, in order to wear the seat belt, the user first holds the tongue 8 of the seat belt 7 and pulls the seat belt 7 upward from the reflector 6, and as shown in FIG. 9, the tongue 8 is passed over the leg of the seated person H from the lateral direction, and the tongue 8 is engaged with the belt buckle 5 as shown in FIG. Complete.

[0005]

[Problems to be solved by the invention]

However, in the conventional seat belt device, the retractor 6 is fixed to the seat leg 2 and the belt buckle 5 is simply fixed to one side of the seat cushion 3. If a large impact load is applied to the front during a vehicle collision or the like and the seat belt 7 is suddenly pulled forward, the seat cushion 3 may be pulled by the seat belt 7 and float.

In addition, since the retractor 6 is merely fixed to the seat leg 2, there is a possibility that the coupling rigidity may not be sufficiently obtained.

Accordingly, the present invention is to provide a highly safe seatbelt device which can sufficiently withstand sudden pulling by a seatbelt and can restrain lifting of a seat cushion.

[0009]

[Means for Solving the Problems]

According to the first aspect of the present invention, there is provided an engaging member attached to one side of a seat cushion supported on a vehicle body floor via a seat leg, and provided on the other side of the seat cushion. A first retractor, a first seat belt wound around the first retractor and having a locking member at its tip end capable of engaging and disengaging with the engaging member, and fixed to a predetermined position of a vehicle body below the seat cushion. It is characterized by comprising a second retractor, and a second seat belt wound around the second retractor and having a front end fixed near the engaging member.

The invention according to a second aspect is characterized in that the first retractor is fixed to a vehicle cabin side wall or a vehicle body floor on the other side of the seat cushion.

The invention according to claim 3 is characterized in that the second retractor is fixed to a vehicle body floor.

According to a fourth aspect of the present invention, while the engaging member is formed by a first tongue or a first buckle, the locking member is disengaged corresponding to the first tongue or the first buckle, respectively. It is characterized by being formed by a second tongue or a second buckle.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, an embodiment in which the seat belt device according to the present invention is applied to an auxiliary seat will be described in detail with reference to the drawings.

That is, as shown in FIGS. 1 and 2, the auxiliary seat 11 is provided on a seat leg 12 fixed on a vehicle body floor 10, and is provided on the seat leg 12 so as to be foldable in the clockwise direction in FIG. Seat cushion 13
And a seat back 4 provided at a rear portion of the seat cushion 13 and foldable forward.

The seat leg 12 is mounted on the vehicle body floor 10.
A bracket 12a fixed thereon,
and a support portion 12b integrally fixed to the side portion a and having an upper end portion bent upward. The seat cushion 13 is mounted and fixed to the supporting portion 12b of the seat leg 12 on the other lower side, that is, on the lower left side.

The seat belt device is provided on a belt tongue 14 which is an engagement member attached to one side of the seat cushion 13 and on a vehicle cabin side wall 15 on the other side of the seat cushion 13. First retractor 16
A first seat belt 17 wound around the first retractor 16 and a vehicle body floor 1 near the seat leg 12.
There is provided a second retractor 18 fixed to 0 and a second seat belt 19 wound around the second retractor 18.

The first seat belt 17 has a buckle 20 at the front end thereof which can be engaged with and disengaged from the belt tongue 14, while the second seat belt 19 has a front end 19 a of the belt tongue 14. It is fixed to the lower portion of the seat cushion 13 via a fixing anchor 21 which is fixedly fastened to the mounting base 14a with a bolt or the like.

The second retractor 18 is substantially L
The seat leg 12 is fixed on the vehicle body floor 10 located inside the bracket 12a of the seat leg 12 via a bracket 22 bent in a letter shape.

Therefore, in order to fasten the first seat belt 17 of the two-point seat belt device, first, for example, a person sitting on the seat cushion 13 is, as shown in FIG. 17 buckles 20
The buckle 20 is pulled upward from the first retractor 16 and wound around the waist of the person sitting on the seat as it is, and the buckle 20 is engaged with the belt tongue 14 held in the right hand. Thereby, the wearing of the first seat belt 20 is easily completed.

The two-point seat belt device is
The front end 19a of the second seat belt 19 wound around the second retractor 18 is connected to one side of the seat cushion 13,
That is, since the seat cushion 13 is fixed to the lower portion of the belt tongue 14 via the anchor portion 21 via the anchor portion 21 even when a sudden impact load is applied to the seat cushion 13 via the first seat belt 17 at the time of a vehicle collision or the like. Since the load can be supported by the second seat belt 19, the occurrence of the floating of the seat cushion 13 can be reliably prevented.

Further, since the first retractor 16 is fixed to the vehicle interior side wall 15 instead of the seat leg as in the prior art, its coupling rigidity is increased, and the first retractor 16 is connected to the seat cushion 13 via the first seat belt 17. Lifting can be further suppressed.

As a result, the respective seat belts 17 and 19 can sufficiently withstand a sudden forward load.
High security can be secured.

The anchor portion 21 is attached to the lower portion of the seat cushion 13 by the support portion 1 of the seat leg 12.
Since it is provided at a position opposite to 2b, the seat cushion 13 can be more effectively prevented from being lifted.

It should be noted that the seat cushion 13 is
b When folded while being raised to the left in FIG. 1 via the hinge at the upper end, the second seat belt 19 is pulled out from the second retractor 18, but the pull-out speed is sufficiently low. The mechanism does not work and can be folded without any resistance.

The position of the second retractor 18 located closer to the position immediately below the anchor portion 21 increases the effect of preventing the seat cushion 13 from being lifted up. Anchor 21
It is desirable to set it to a position close to.

The present invention is not limited to the configuration of the above-described embodiment. For example, the buckle 20 of the first seat belt 17 can be changed to a tongue, and the belt tongue 14 can be changed to a buckle at the same time. is there.

[0029]

【The invention's effect】

As apparent from the above description, according to the seat belt device of the first aspect, the second retractor is fixed to a predetermined position of the vehicle body on the side of the engaging member, and is wound around the second retractor. The front end of the second seat belt is fixed to the vicinity of the engaging member. Therefore, even when a sudden impact load is applied to the seat cushion forward in a vehicle collision or the like, the load is applied by the second seat belt. Since the seat cushion can be supported, it is possible to reliably prevent the seat cushion from floating.

According to the second aspect of the present invention, the first
Since the retractor is not fixed to the seat leg as in the related art but to the vehicle cabin side wall or the vehicle body floor on the other side of the seat cushion, the coupling rigidity is increased, and the floating of the seat cushion can be further suppressed. As a result, each seat belt can sufficiently withstand a sudden forward load, and high safety can be ensured.

According to the third aspect of the present invention, since the second retractor is fixed to the vehicle body floor, the coupling rigidity is increased, and in this respect, the force of suppressing the lifting of the seat cushion can be increased.

According to the fourth aspect of the present invention, the degree of freedom in selecting the locking member and the engaging member is improved.

[Brief description of the drawings]

FIG. 1 is a rear side perspective view showing an embodiment of a seat belt device according to the present invention.

FIG. 2 is a schematic perspective view of the embodiment.

FIG. 3 is a perspective view partially showing a conventional two-point seat belt device.

FIG. 4 is an explanatory diagram showing an operation of the conventional seat belt device.

FIG. 5 is a view taken in the direction of the arrow A in FIG. 4;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Body panel 11 Auxiliary seat 12 Seat leg 13 Seat cushion 14 Belt tongue 15 Vehicle side wall 16 First retractor 17 First seat belt 18 Second retractor 19 Second seat belt 20 Buckle 21 Anchor part

Claims (4)

[Claims] An engaging member attached to one side of a seat cushion supported on a vehicle body floor via a seat leg; a first retractor provided on the other side of the seat cushion; A first seatbelt wound around one retractor and having a locking member at its tip end capable of engaging and disengaging with the engaging member; a second retractor fixed to a predetermined position of a vehicle body below the seat cushion; A second seat belt wound around the retractor and having a front end fixed near the engaging member. 2. The seat belt device according to claim 1, wherein the first retractor is fixed to a vehicle cabin side wall or a vehicle body floor on the other side of the seat cushion. 3. The seat belt device according to claim 1, wherein the second retractor is fixed to a vehicle body floor. 4. The method according to claim 1, wherein the engaging member is a first tongue or a first tongue.
The locking member is formed by a second tongue or a second buckle which is engaged and disengaged corresponding to the first tongue or the first buckle, respectively, while being formed by a buckle. The seatbelt device according to item 1.