JP2000272469A - Seat belt device in automobile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve a restraint performance by a seat belt by improving support strength, when the inertia force of a sitter sit on an intermediate seat is supported to a car body through a seat belt at the collision of an automobile. SOLUTION: Right/left side seats 15, 16 arranged in a car room 10 near a side wall and supported to a car room floor and an intermediate seat 17 arranged between these both side seats 15, 16 and supported to said car room floor are provided. The seat belt device 25 provided on this intermediate seat 17 is provided with a seat belt 29 whose one end 29a is connected to the lower part of one side 17a side out of both sides 17a, 17b of the intermediate seat 17 and whose other end 29b is connected to the upper part of the side seat 16 adjacent to one side 17a of the intermediate seat 17 and locking means 32 for unlockably locking the part 29c on the way of the longitudinal direction of the seat belt 29 to the other side 17b side of the intermediate seat 17.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seat belt device provided for an intermediate seat disposed between left and right side seats in a vehicle compartment.

[0002]

2. Description of the Related Art A conventional seat belt device for an automobile is disclosed in JP-A-6-225821.

According to the above publication, the body of an automobile is composed of a vehicle cabin floor, left and right side walls each having a lower end joined to each side of the vehicle cabin floor, and both side walls above the vehicle cabin floor. And a cabin provided between the two.

[0004] Left and right side seats are disposed in the vehicle cabin near the side walls in the width direction of the vehicle body and supported by the vehicle cabin floor, and are disposed between the both side seats and are mounted on the vehicle cabin floor. A supported intermediate seat is provided, and the intermediate seat is provided with a seat belt device.

[0005] The seat belt device has a seat belt in which one end is connected to a lower portion of one side of both sides of the intermediate seat, and the other end is connected to an upper end of a seat back of the intermediate seat. Locking means for locking the middle part of the seat belt in the longitudinal direction to the other side of the intermediate seat so as to be detachable.

[0006] When the vehicle is running, an intermediate portion in the longitudinal direction of the seat belt is positioned in front of the occupant seated on the intermediate portion seat, and the intermediate portion is positioned on the other side of the intermediate portion seat by the locking means. When the seat belt is locked to the seat, the seated person is restrained by the seat belt in a state of sitting on the intermediate seat.

Therefore, when the occupant is about to be released from the intermediate seat by the inertia force during the collision of the automobile, the inertia force is applied to the vehicle body via the seat belt and the intermediate seat. Supported, so that the seated person is held on the intermediate seat, and release from the intermediate seat is prevented.

[0008]

By the way, each side portion of the vehicle body floor is usually reinforced by coupling with the lower end portion of the side wall and has a large strength.
The central part of the vehicle body floor in the width direction tends to have relatively low strength.

For this reason, the supporting strength of the intermediate seat supported on the middle of the vehicle floor is smaller than the supporting strength of the side seat supported on the vehicle body floor in the vicinity of the side wall. Tends to.

Therefore, when the inertia force of the occupant is supported by the vehicle body via the seatbelt and the intermediate seat at the time of the collision of the automobile, as described above, the support strength of the intermediate seat with respect to the vehicle body floor is increased. Is smaller, the supporting strength of the inertial force with respect to the vehicle body is reduced, that is, the improvement of the restraint performance by the seat belt may be hindered.

Therefore, it is conceivable to improve the supporting strength of the seat belt with respect to the vehicle body by, for example, directly connecting the other end of the seat belt to the vehicle body. There is a possibility that the part side may obstruct occupants other than the occupant sitting on the intermediate part seat.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and is intended to support the inertia force of a occupant seated on an intermediate seat through a seat belt on a vehicle body during a collision of an automobile. An object of the present invention is to further improve the support strength of the seat belt and to further improve the restraint performance of the seat belt, and to prevent the seat belt from interfering with other occupants even in this case. As an issue.

[0013]

A seat belt device for an automobile according to the present invention for solving the above-mentioned problems is as follows.

According to the first aspect of the present invention, the vehicle body 2 includes a vehicle cabin floor 6, left and right side walls 7, 7 each having a lower end coupled to each side of the vehicle cabin floor 6, A vehicle compartment 10 provided between the side walls 7 and 7 at an upper side, and the vehicle compartment 10 is provided near the side wall 7 in the width direction of the vehicle body 2.
And left and right side seats 15 and 16 supported by the vehicle cabin floor 6 and an intermediate seat 17 disposed between the both side seats 15 and 16 and supported by the vehicle cabin floor 6. In the automobile provided with the seat belt device 25 on the intermediate seat 17,

The seat belt device 25 is connected to one of the side portions 17a and 17b of the intermediate portion seat 17.
a seat belt 29 having one end 29a connected to a lower part of the awk and another end 29b connected to an upper portion of the side seat 16 adjacent to one side 17a of the intermediate seat 17;
A locking means 32 is provided for locking the intermediate portion 29c in the longitudinal direction of the seat belt 29 so that the other side portion 17b of the intermediate portion seat 17 can be freely engaged and disengaged.

According to a second aspect of the present invention, in addition to the first aspect, the other end 29b of the seat belt 29 is connected to the intermediate portion seat 17 at the upper end of the seat back 20 of the side seat 15. Is connected to the side part 20a of the.

[0017]

Embodiments of the present invention will be described below with reference to the drawings.

In the drawing, reference numeral 1 denotes an automobile, and an arrow Fr
Indicates the front of the vehicle 1 and the following left and right refer to the width direction of the vehicle body 2 of the vehicle 1 toward the front.

The vehicle body 2 is supported on a traveling road surface 4 by front and rear wheels. The vehicle body 2 is made of sheet metal, and a lower part thereof constitutes a cabin floor 6 extending substantially horizontally, and the left and right sides of the vehicle body 2 constitute left and right sides, and lower ends thereof are formed on the respective side parts of the vehicle floor 6. Left and right side walls 7, 7 joined to the
A roof panel 8 which constitutes an upper portion of the vehicle body 2 and is coupled to each upper end of the left and right side walls 7, 7; I have.

A plurality of (three) seat devices 11 to 13 are arranged in the vehicle compartment 10 so as to be arranged in the front-rear direction. The right seat 14 of the front seat device 11 is a driver seat.

Of the seat devices 11 to 13, the middle seat device 12 includes left and right side seats 15 and 16 which are disposed to be separated from each other in the width direction of the vehicle body 2, and both side seats 15 and 16. Intermediate part sheet 17 arranged between
The seats 15 to 17 are all supported on the vehicle floor 6. The intermediate seat 17 may be supported on the vehicle cabin floor 6 via one of the side seats 15 and 16.

The left and right sides of the cabin floor 6 are reinforced by being connected to the lower ends of the side walls 7, so that the vicinity of the side of the cabin floor 6 is The floor 6 has a greater strength than a central portion in the width direction of the floor 6. Then, each of the side sheets 15, 16
Are arranged near the side walls 7 corresponding to the widths 15 and 16 of the vehicle body 2 in the width direction of the vehicle body 2 and supported by the vehicle floor 6. In other words, the side seats 15 and 16 are firmly supported by the vicinity of the side of the passenger compartment floor 6 having a large strength as described above.

Each of the seats 15 to 17 is supported by the cabin floor 6 and extends substantially horizontally so that a seated person can be seated thereon. The seat back 20 has a rear end protruding from the seat cushion 19 so that a seated person sitting on the seat cushion 19 can rest on the seat cushion 19. An inclination adjusting means 21 for pivotally supporting the upper end side of the upper part 20 forward and downward (arrow A in FIG. 1) and a backward rotation (opposite to A) is provided. The seat back 20 can be held at a desired rotation angle with respect to the seat cushion 19.

The seat back 20 can be superimposed on the upper surface of the seat cushion 19 by the forward rotation (A) about the inclination adjusting means 21 (indicated by a dashed line in FIG. 1). Further, a pivoting means 23 for pivotally supporting the overlapped intermediate portion sheet 17 on one side sheet 16 adjacent to the intermediate portion sheet 17 so as to be vertically rotatable is provided. If the intermediate portion sheet 17 is turned around the pivotal support means 23 so as to be in an upright posture, the intermediate portion sheet 17 is in a "storage state" near the side of the side portion sheet 16 (see FIG. 1). A part of the space between the left and right side seats 15, 16;
The space between the intermediate sheet 17 in the "storage state" and the other side sheet 15 is opened in the front-rear direction, and is used as a passage.

A seat belt device 25 is provided on the intermediate seat 17. This seat belt device 25 is
One of the side portions 17a of both sides 17a and 17b of the intermediate portion sheet 17 is provided with one end 29a at the lower part of the arm.
And the other end 29b is connected to the intermediate sheet 17
The seat belt 2 connected to the upper portion of the one side seat 16 adjacent to the one side portion 17a via a retractor 28
9 and a middle portion 29c in the longitudinal direction of the seat belt 29.
And a locking means 32 for locking the other side 17b of the intermediate sheet 17 to the lower part of the waist so as to be detachable.

The other end 29b of the seat belt 29 is
The intermediate portion seat 17 at the upper end portion of the seat back 20 of the one side seat 16 is connected to the side portion 20a through the retractor 28. The locking means 32 includes a to-be-locked member 33 which is a tongue plate which is slidably attached to the middle part 29c of the seat belt 29 along the longitudinal direction thereof, The other side portion 17b is provided with a locking member 34 which is attached to an alligator and is a buckle which allows the locked member 33 to be freely disengaged.

In the above case, one end 2 of the seat belt 29
9a may be more directly connected to one side 17a of the intermediate seat 17 via an anchor 27, etc., but the passenger compartment floor 6 or the side seat where the one side 17a is located. 16 may be connected. Further, the other end portion 29b of the seat belt 29 may be directly connected to the seat back 20 of the side seat 16 via an anchor 27 without passing through the retractor 28.
Also, the retractor 28 is attached to the rear lower portion of the side seat 16 (including the lower rear surface of the seat cushion 19, the rear surface of the seat back 20, and the passenger cabin floor 6), and the other end portion 29b is moved in the longitudinal direction. The side seat 16 is connected to the side 20a at the upper end of the seat back 20 so as to be slidable, and the end of the other end 29b is extended, and the extended end is connected to the retractor 28. They may be connected. Further, the middle part 2 of the seat belt 29
9c may be more directly connected to the other side portion 17b of the intermediate portion sheet 17 by the locking member 34,
The above-mentioned other side portion 17b may be made detachable by a locking member 34 with respect to the cabin floor 6 or the side seat 15 to which the other side portion 17b is located.

When the seat belt device 25 is not used, the retractor 28 elastically winds the seat belt 29 from the other end 29b, so that the seat belt 29 is moved from one end 29a to the other end 29a. The side seat 16 on which the retractor 28 is attached linearly extends substantially vertically upward toward the side portion 20a of the seat back 20, and thus the one side portion 17a near the one side portion 17a of the intermediate sheet 17 is provided. It is stored along the outer surface.

When the vehicle 1 is running, the occupant seated on the intermediate seat 17 grips the locked member 33 of the locking means 32 and moves the seat belt 29 halfway 29c.
Is pulled out from the retractor 28, the halfway portion 29c is positioned in front of the occupant, and the locked member 33 is locked by the locking member 34, that is, the halfway portion 29c is The side part 17b is locked on the crocodile. Then, the seated person is restrained by the seat belt 29 in a state of sitting on the intermediate seat 17.

For this reason, when the occupant is about to be released from the intermediate portion seat 17 by the inertia force of the vehicle 1 in the collision, the inertia force is reduced by the seat belt 2.
The seat 9 is supported on the cabin floor 6 of the vehicle body 2 via the side seats 16 in addition to the seat 9 and the intermediate seat 17, so that the seated person is held on the intermediate seat 17. Release is prevented.

In the above case, each side of the cabin floor 6 is reinforced by coupling with the lower end of the side wall 7 to have a large strength.
In the vicinity of the vehicle cabin floor 6, that is,
As described above, the side seat 16 is supported in the vicinity of the side of the vehicle floor 6 having high strength, and the supporting strength is set to be large.

Accordingly, as described above, the supporting strength of the side seat 16 with respect to the cabin floor 6 is large, so that a part of the inertial force of the occupant is supported by the cabin floor 6 via the side seat 16. The supporting strength of the seat belt 29 is also increased, and the restraining performance of the seat belt 29 is further improved.

As described above, the other end 29b of the seat belt 29 is connected to the seat back 2 of the side seat 15.
0 at the upper end of the middle sheet 17
0a.

Therefore, the other end 29b of the seat belt 29 is connected to the intermediate seat 17 of the side seat 16.
As the seatbelt 29 is located on the side of the girder, and the seatbelt 29 goes downward from the other end 29b, the intermediate seat 17 on the outer side extends from the side seat 16 toward the girder. .

Accordingly, the seat belt 29 is prevented from interfering with the occupant of the side seat 16, that is, even if the restraining performance of the seat belt 29 is improved as described above, Is prevented from interfering with occupants other than the occupant on the intermediate seat 17.

The other end 29 of the seat belt 29
Since b is connected to the seat back 20 of the side seat 16, it is easy to bring the intermediate seat 17 into the "storage state" without being disturbed by the other end 29b of the seat belt 29. Can be.

[0037]

The effects of the present invention are as follows.

According to the first aspect of the present invention, the vehicle body is provided between a vehicle cabin floor, left and right side walls each having a lower end connected to each side of the vehicle cabin floor, and between the side walls above the vehicle cabin floor. A left and right side seat that is disposed in the passenger compartment near the side wall in the width direction of the vehicle body and is supported by the passenger compartment floor, and is disposed between these two side seats. An intermediate portion seat supported on the floor of the passenger compartment, and an automobile provided with a seat belt device on the intermediate portion seat;

The above-mentioned seat belt device may be configured such that one of the side portions of the both side portions of the intermediate portion seat is connected to a lower portion of one side and the other end portion is adjacent to one side portion of the intermediate portion seat. A seat belt connected to an upper portion of the seat, and locking means for locking a middle portion in the longitudinal direction of the seat belt so that the other side portion of the intermediate seat can be detachably engaged with the other side; The effect occurs.

That is, the occupant seated on the intermediate seat positions the intermediate portion of the seat belt in front of the intermediate seat, and the intermediate portion is connected to the other side of the intermediate seat by the locking means. To stop. Then, the seated person is restrained by the seat belt in a state of sitting on the intermediate seat.

Therefore, when the occupant is about to be released from the intermediate seat by the inertia force during the collision of the automobile, the inertia force is added to the side belt in addition to the seat belt and the intermediate seat. The seat is supported on the passenger compartment floor of the vehicle body via the seat, so that the seated person is held on the intermediate seat, and release from the intermediate seat is prevented.

In the above case, each side portion of the cabin floor is reinforced by coupling with the lower end portion of the side wall to have a large strength, and the side seat is provided near the side wall as described above. The side seat is supported on the cabin floor, that is, the side seat is supported near the side of the strong cabin floor as described above, and the supporting strength is high.

Accordingly, as described above, since the supporting strength of the side seat to the cabin floor is large, the supporting strength when a part of the inertia force of the occupant is supported by the cabin floor via the side seat is also increased. As a result, the seat belt restraint performance is further improved.

According to a second aspect of the present invention, the other end portion of the seat belt is connected to a side portion of the middle seat at an upper end portion of the seat back of the side seat portion.

For this reason, the other end of the seat belt is located at the side of the side seat where the intermediate seat of the side seat is located, and the seat belt moves downward from the other end of the seat belt. , The intermediate sheet on the outer side extends from side to side.

Therefore, the seat belt is prevented from obstructing the occupant of the side seat, that is,
Even when the restraint performance by the seat belt is improved as described above, the seat belt is prevented from obstructing occupants other than the occupant in the intermediate seat.

[Brief description of the drawings]

FIG. 1 is a perspective view of a seat device.

FIG. 2 is an overall plan view of an automobile.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Automobile 2 Body 6 Car cabin floor 7 Side wall 10 Car cabin 12 Seat device 15 Side seat 16 Side seat 17 Intermediate seat 17a One side 17b Other side 19 Seat cushion 20 Seat back 20a Side 21 Inclination adjusting means 23 Pivot means 25 Seat belt device 29 Seat belt 29a One end 29b Other end 29c Midway 32 Locking means

Claims (2)

[Claims] 1. A vehicle body comprising: a vehicle cabin floor; left and right side walls each having a lower end coupled to each side of the vehicle cabin floor; and a vehicle room provided between the side walls above the vehicle cabin floor. And left and right side seats arranged in the cabin near the side walls in the width direction of the vehicle body and supported by the cabin floor, and disposed between the both side seats and provided on the cabin floor. A vehicle provided with an intermediate seat to be supported, and a seat belt device provided on the intermediate seat, wherein the seat belt device has one end on one side of one side of both sides of the intermediate seat. A seatbelt, the other end of which is connected to an upper portion of the side seat adjacent to one side of the intermediate seat, and a middle portion in the longitudinal direction of the seatbelt is connected to the other side of the intermediate seat. Engage and disengage the gaw Seat belt apparatus in the vehicle and a stopping means. 2. The seat belt device for an automobile according to claim 1, wherein the other end of the seat belt is connected to a side of the intermediate seat at an upper end of a seat back of the side seat.