JP2001018849A - Vehicular floor structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicular floor structure capable of transmitting a load of a cross member inside a seat during a collision and providing a flat floor of a degree enabling a walk-through between right and left seats under normal conditions. SOLUTION: Cross members 12 are arranged in a car width direction inside right and left seats 10 mounted on a floor panel 16, a load transmitting member 20 is arranged in a position lower than the cross members 12 inside a recessed part 16a of the floor panel 16 between the right and left seats 10, and a flipping up mechanism 26 expanding the load transmitting member 20 upward and arranging it between the cross members 12 of the right and left seats 10 during a collision is provided inside the recessed part 16a. The load transmitting member 20 expanded upward by the flipping up mechanism 26 during the collision transmits the load between the right and left cross members 12.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle floor structure, and more particularly, to a vehicle floor structure in which cross members are arranged in a vehicle width direction in left and right seats mounted on a vehicle body floor.

[0002]

2. Description of the Related Art Conventionally, as this kind of vehicle floor structure, there is one disclosed in Japanese Utility Model Laid-Open Publication No. 3-26652, for example.

[0003]

However, in the conventional vehicle floor structure described in this publication, the cross member is provided between the left and right seats at a height bridging between the cross members in the left and right seats. Since a load transmitting member for transmitting a load between the members is always provided, there is a problem that the load transmitting member cannot be disposed on a flat floor that enables walk-through or the like.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and the invention according to claims 1 to 8 can transmit the load of a cross member in a seat at the time of a collision, and can walk between the left and right sheets. It is an object of the present invention to provide a vehicle floor structure that can be formed as a flat floor that allows the vehicle to pass through.

[0005]

According to one aspect of the present invention, there is provided a vehicle floor having a cross member disposed in a width direction in left and right seats mounted on a vehicle body floor. In the structure, a load transmitting member is disposed at a position lower than the cross member on the vehicle body floor between the left and right seats, and further, the load transmitting member is deployed upward at the time of a collision to be disposed between the left and right seat cross members. A flip-up mechanism is provided, and a load transmitting member expanded upward by the flip-up mechanism transmits a load between the left and right cross members at the time of a collision.

According to a second aspect of the present invention, in the first aspect of the present invention, the vehicle body floor is provided with a concave portion recessed downward, and the load transmitting member is normally accommodated in the concave portion. .

[0007] The invention described in claim 3 is claim 1 or 2.
A covering cover body is provided above the load transmitting member described above, and the shape of the edge of the cover body is a gentle ridge line continuous to the floor panel.

According to a fourth aspect of the present invention, a floor carpet is laid over the upper surface of the cover body and the upper surface of the floor panel according to the third aspect.
It is characterized by being cut along the periphery of the covering cover body.

[0009] The invention according to claim 5 is the invention according to claims 1 to 4.
The spring-up mechanism for a load transmitting member according to any one of the above, includes a spring that presses the load transmitting member upward, and a wire that is connected to the load transmitting member and regulates a maximum amount of rise of the load transmitting member. It is characterized by the following.

According to a sixth aspect of the present invention, the flip-up mechanism according to the fifth aspect further includes a lock mechanism for holding the load transmitting member in a housed state in a normal state.

The invention according to claim 7 is the invention according to claims 1 to 4.
The flip-up mechanism according to any one of claims 1 to 3, wherein the airbag device presses the load transmitting member upward during a collision, and controls a maximum rising position of the load transmitting member connected to the load transmitting member and the position thereof. Characterized by having a link with a stopper for holding

[0012] The invention according to claim 8 is the invention according to claims 1 to 7.
The load transmitting member and the flip-up mechanism according to any one of the above, are disposed on a vehicle body floor as a module.

[0013]

According to the first aspect of the present invention, the load transmitting member is usually disposed at a position lower than the cross member, and the load transmitting member is expanded upward by the flip-up mechanism in the event of a collision, so that the left and right seats are moved. In the event of a collision, the collision load can be transmitted between the cross members via the load transmission member, and the collision energy can be effectively absorbed. Can be made flat, that is, flat, as compared with the structure described in the conventional publication. Further, since the direction in which the load transmitting member is deployed is different from the direction in which the load is input, it is possible to prevent a nearby object from being pinched when the load transmitting member is deployed.

According to the second aspect of the invention, in addition to the effect of the first aspect, the load transmitting member is normally accommodated in the recess provided on the vehicle body floor, so that the amount of the load transmitting member projecting in the normal state is reduced. Can be smaller. Further, by providing the concave portion on the vehicle body floor, the rigidity of the vehicle body floor and the load transmitting member supporting portion can be improved by the ridge line of the concave portion.

According to the third aspect of the present invention, in addition to the effect of the first or second aspect, a covering cover is provided above the load transmitting member, and the shape of the edge of the cover is continuous with the floor panel. By providing a gentle ridge line, the step of the load transmitting member with respect to the floor panel can be made gentle, and the load transmitting member can be prevented from obstructing movement of an occupant or the like on the vehicle floor.

According to the fourth aspect of the invention, in addition to the effect of the third aspect, the floor carpet is laid over the upper surface of the covering cover and the upper surface of the floor panel, so that the appearance is good and the covering cover is conspicuous. Can not be. Further, since the floor carpet is cut along the periphery of the covering cover body, it is possible to prevent the load transmitting member from being disturbed upward.

According to the fifth aspect of the invention, in addition to the effect of any one of the first to fourth aspects, since the spring-up mechanism has a spring and a wire, the spring pushes the load transmitting member upward. And the amount of lift of the load transmitting member is regulated by the wire,
The deployed position of the load transmitting member can be made to match the height of the cross members of the left and right seats. In addition, by compressing the spring during normal times, the amount of upward and downward protrusion of the flip-up mechanism from the vehicle body floor during normal times can be reduced.

According to the invention described in claim 6, in addition to the effect according to claim 5, in addition to the effect according to claim 5, at normal times,
The housed state of the load transmitting member can be maintained.

According to the seventh aspect of the present invention, in addition to the effects of any one of the first to fourth aspects, since the flip-up mechanism has the airbag device and the link with the stopper, the upward movement of the airbag is achieved. The load transmitting member can be pressed upward by unfolding, and the maximum ascending position of the load transmitting member is regulated by the link with the stopper, and by maintaining the position, the deploying position of the load transmitting member can be adjusted to the right and left sheets. It can be made to match the height of the cross member. In addition, since the airbag is contracted in normal times, the vertical projection amount of the flip-up mechanism from the vehicle body floor in normal times can be reduced.

According to the eighth aspect of the invention, in addition to the effects according to any one of the first to seventh aspects, the load transmitting member and the bouncing mechanism are formed as modules, so that the load transmitting member to the vehicle body and the bouncing mechanism are provided. The mounting operation of the lifting mechanism can be easily performed.

[0021]

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

FIG. 1 to FIG. 3 are views showing a first embodiment of the present invention. In the figure, 10 is a seat back 10
A and a seat comprising a seat cushion 10B,
They are arranged on the left and right on a floor panel 16 constituting the vehicle body floor. Specifically, the seat 10 is provided with a seat rail 10C at a lower portion thereof.
C is attached to the floor panel 16 via a bracket (not shown), and a floor cross member 18 is provided below the floor panel 16.

In the seat 10, a cross member 12 is provided in the vehicle width direction. For example, one or a plurality of cross members 12 are provided below the seat back 10A of the seat 10 or at the rear of the seat cushion 10B.
The floor panel 16 between the left and right seats 10 has a reduced convex portion in order to enable walk-through, and the floor panel 16 has a concave portion 16a that is recessed downward.
Is further provided, and the load transmitting member 20 is normally accommodated in the recess 16a.

The load transmitting member 20 can be, for example, a box-shaped member opened downward, and as shown in FIG.
Ribs 20a, 20a extending in the vehicle width direction as appropriate therein.
Are provided in plural. A covering cover 22 is provided above the load transmitting member 20, and the shape of the edge of the covering cover 22 is a gentle ridge line continuous to the floor panel 16. A floor carpet 24 is laid over the upper surface of the floor panel 16 and the upper surface of the covering cover 22, and the floor carpet 24 is cut along the periphery of the covering cover 22.

In the recess 16a, a load transmitting member 20 is provided.
At the same time, the flip-up mechanism 26 is housed. Bouncing mechanism 2
Reference numeral 6 is for expanding the load transmitting member 20 upward, and mainly includes a spring 28, a wire 30, and a lock mechanism 32. The wire 30 is connected to the load transmitting member 2.
0, one end of each wire 30 is attached to a receiving portion 20b inside the load transmitting member 20, and the other end of the wire 30 is connected to a receiving portion provided in the concave portion 16a. 16b. A spring 28 is provided around the wire 30. In normal times, the spring 28 is compressed in the concave portion 16a.
The load transmitting member 20 is pressed upward. The lock mechanism 32 is composed of a solenoid 36 having a pin 34. In normal times, the pin 34 is fitted into a locking hole 20c provided in one rib 20a of the load transmitting member 20, and The member 20 is prevented from expanding upward. The solenoid 36 is provided with a collision detection sensor 38 provided in a side sill 40 on the side of the vehicle, which is a collision detection means.
When a collision signal is received from the actuator, the pin 34 is excited to pull out the pin 34 from the locking hole 20c and to pull the pin 34 into the solenoid 36.

The operation of the vehicle floor structure configured as described above will be described.

When a side collision occurs and a collision signal is output from the collision detection sensor 38, the collision signal is sent to the solenoid 36, and the pin 34 is retracted and comes out of the locking hole 20c. Thereby, the load transmitting member 20 is released from the floor panel 16 together with the covering cover body 22,
The wire 30 is pressed upward by the spring 28,
When the tension of the wire 30 is balanced with the restoring force of the spring 28 as shown in FIG. 3, the load transmitting member 20 stops. The wire 30 is set in advance so that this position matches the position of the cross member 12 in the seat 10.
By adjusting the length, the load transmitting member 20 can transmit the load of the left and right cross members 12, and can transmit the collision load entering from the side of the vehicle body to the non-collision side. Thus, the collision energy can be effectively absorbed. The upward direction, which is the deployment direction of the load transmitting member 20, is different from the load input direction.
2 can be prevented from being pinched by the load transmitting member 20.

In normal times, since the load transmitting member 20 is housed in the recess 16a of the floor panel 16, the amount of projection of the floor panel 16 from the general surface is not so high. The ridge line of the covering cover body 22 provided on the floor is smoothly continued to the floor panel 16, so that when the occupant, the luggage or the like moves on the floor, the movement is not hindered. Covering cover 2
2 is made to project from the side edge of the seat 10 toward the seat 10 within a range that does not hinder the lift of the cover cover 22 and the load transmitting member 20. The periphery of 22 can be completely unobstructed. Further, since the concave portion 16a is formed in the floor panel 16, the stiffness of the floor panel 16 itself can be improved due to the presence of the ridge line, and the support rigidity of the load transmitting member 20 can be improved. .

Further, in normal times, the spring 28 is compressed, so that the amount of the flip-up mechanism 26 projecting vertically from the general surface of the floor panel 16 can be reduced.

FIGS. 4 to 8 are views showing a second embodiment of the present invention. In the drawing, the same members as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted.

In this embodiment, the load transmitting member 2
The flip-up mechanism 42 for deploying 0 upward has an airbag device 44 and a link 46 with a stopper. The airbag device 44 includes an airbag 48 and an inflator 50 for inflating the airbag 48, and is fixed to the recess 16a so as to be disposed between adjacent ribs 20a inside the load transmitting member 20. Is done. The link 46 with the stopper is connected to the load transmitting member 20.
Links 4 with stoppers
One end of 6 is connected to the inner surface of the load transmitting member 20. For example, as shown in FIG. 7, one end of the link with stopper 46 is hingedly connected to the concave portion 16a and the load transmitting member 20 by a rotation pin, and the other end is hingedly connected to each other by a rotation pin. A stopper 46a for limiting the rotation of the link beyond a predetermined rotation in the vicinity of these two hinge connection points;
46b are formed.

The operation of the vehicle floor structure configured as described above will be described.

When a side collision occurs and a collision signal is output from the collision detection sensor 38, the collision signal is sent to the airbag device 44, and the inflator 50 operates to inflate and inflate the airbag 48. As a result, the load transmitting member 20 rises upward, and at the same time, the link 46 with the stopper.
Also expand (FIG. 6). When the deployment of the airbag 48 is completed, the load transmitting member 20 attempts to descend, but the link with stopper 46 is in the state shown in FIG. 8, and the stopper with link 46a, 46b provided on the link with stopper 46 provides the link with stopper. Since the hinge 46 is prevented from rotating, the load transmitting member 20 is maintained at the predetermined position in FIG. By setting the stoppers 46a and 46b of the link with stopper 46 so that this position matches the position of the cross member 12 in the seat 10, the load transmitting member 2
0 can transmit the load of the left and right cross members 12 and can transmit the collision load entering from the side of the vehicle body to the non-collision side. Thus, the collision energy can be effectively absorbed. Since the upward direction, which is the deployment direction of the load transmitting member 20, is different from the load input direction, it is possible to prevent a nearby object from being pinched between the cross member 12 and the load transmitting member 20.

Further, since the airbag 48 is normally contracted, the amount of vertical projection from the general surface of the floor panel 16 can be reduced.

FIGS. 9 and 10 show a third embodiment of the present invention. In the drawings, the same members as those in the previous embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted.

In this embodiment, the load transmitting member 2
This embodiment differs from the first embodiment in that a module 52 is formed by integrating the flip-up mechanism 26 with the zero. The module 52 has a box-shaped case 54 opened upward,
The box-shaped case 54 has a box-shaped load transmitting member 20 that opens downward, and a spring 2 that is a spring mechanism 26 that jumps up into an internal space surrounded by the box-shaped case 54 and the load transmitting member 20.
8, a wire 30, and a lock mechanism 32 are incorporated.
Although not shown, the solenoid 36 constituting the lock mechanism 32 is externally wired.

Thus, the integrated module 52
Is fixed to the recess 16a of the floor panel 16 by bonding or the like. The covering cover body 22 as in the first embodiment can be omitted.

Even in the case of the module 52 as described above, at the time of collision, it operates in the same manner as in the first embodiment, and the same effect is obtained. Since the whole is a module 52, the work of mounting it on the vehicle body can be easily performed.
It is a matter of course that the flip-up mechanism incorporated in the module 52 may not use the spring 28 or the like, but may use the airbag device 44 or the like.

In each of the above embodiments, the collision detecting means is a collision signal from a collision detecting sensor. However, the present invention is not limited to this. The load transmitting member is moved upward by a link mechanism utilizing body deformation. With this configuration, the link mechanism can have both functions of a collision detection sensor and a flip-up mechanism.

Further, instead of laying the floor carpet 24 on the upper surface of the covering cover 22, a part of the floor mat is covered with the upper surface of the covering cover 22 so as not to hinder the rise of the covering cover 22 and the load transmitting member 20. Can be superimposed on the periphery of

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a floor viewed from the front side of left and right seats showing a first embodiment of a vehicle floor structure of the present invention.

FIG. 2 is an exploded perspective view of a main part of a load transmitting member and a flip-up mechanism on a vehicle body floor between left and right seats in FIG. 1;

FIG. 3 is a diagram corresponding to FIG. 1, showing a state of the vehicle floor structure in the first embodiment at the time of collision.

FIG. 4 is a cross-sectional view of a floor as viewed from the front side of left and right seats showing a second embodiment of the vehicle floor structure of the present invention.

5 is an exploded perspective view of a main part of a load transmitting member and a flip-up mechanism on a vehicle body floor between left and right seats in FIG. 4;

FIG. 6 is a view corresponding to FIG. 3, showing a state at the time of a collision of a vehicle floor structure according to a second embodiment.

FIG. 7 is a side view of the link with stopper shown in FIG. 5;

FIG. 8 is a side view showing a state of a link with a stopper at the time of a collision.

FIG. 9 is a sectional view of a floor as viewed from the front side of left and right seats, showing a third embodiment of the vehicle floor structure of the present invention.

FIG. 10 is an exploded perspective view of a main part of a load transmitting member and a flip-up mechanism on a vehicle body floor between left and right seats in FIG. 9;

[Explanation of symbols]

 REFERENCE SIGNS LIST 10 seat 12 cross member 16 floor panel 16 a recess 20 load transmitting member 22 covering cover body 24 floor carpet 26 spring mechanism 28 spring 30 wire 32 lock mechanism 38 collision detection sensor (collision detection means) 42 spring mechanism 44 airbag device 46 Link with stopper 46a, 46b Stopper 52 module

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) B62D 21/15 B62D 21/15 Z

Claims (8)

[Claims] 1. A vehicle floor structure in which cross members are arranged in a width direction of a vehicle in left and right seats mounted on a vehicle body floor, wherein the cross members are positioned lower than the cross members on the vehicle body floor between the left and right seats. A load transmitting member is arranged, and further, a flip-up mechanism is provided for expanding the load transmitting member upward during a collision and disposing the load transmitting member between the cross members of the left and right seats, and is expanded upward by the flip-up mechanism during a collision. A vehicle floor structure wherein a load transmitting member transmits a load between the left and right cross members. 2. The vehicle floor structure according to claim 1, wherein a recessed portion that is recessed downward is provided in the vehicle body floor, and a load transmitting member is normally accommodated in the recessed portion. 3. A covering cover body is provided above the load transmitting member, and the shape of the edge of the covering body is a gentle ridge line continuous to the floor panel. 2. The vehicle floor structure according to 2. 4. A floor carpet is laid over the upper surface of the cover body and the upper surface of the floor panel, and the floor carpet is cut along an edge of the cover body. Vehicle floor structure as described. 5. A mechanism for lifting a load transmitting member, comprising: a spring for pressing the load transmitting member upward; and a wire connected to the load transmitting member for regulating a maximum amount of rise of the load transmitting member. The vehicle floor structure according to any one of claims 1 to 4, wherein 6. The vehicle floor structure according to claim 5, wherein the flip-up mechanism further includes a lock mechanism for holding the load transmitting member in a housed state in a normal state. 7. The flip-up mechanism includes an airbag device that presses a load transmitting member upward during a collision, and an airbag device that is connected to the load transmitting member to regulate a maximum rising position of the load transmitting member and hold the position. The vehicle floor structure according to any one of claims 1 to 4, further comprising a link with a stopper. 8. The vehicle floor structure according to claim 1, wherein the load transmitting member and the flip-up mechanism are arranged on a vehicle body floor as an integrated module. .