JPH08282293A - Door locking device for vehicle - Google Patents

Abstract

PURPOSE: To restrict the generation of displacement of a door for vehicle to the inside of a cabin when an impact is applied from the side of a vehicle. CONSTITUTION: The lower surface of a door main body 3 for vehicle is formed with a stage part 15, which is provided with the inclined surface 14 inclined inside half downward, and on the other hand, the top surface of a side sill 2 is formed with a stage part 17, which is provided with the inclined surface 16 inclined outside half upward, at the inside of a cabin 4 in relation to the stage part 15.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for suppressing displacement of a vehicle door toward the inside of a vehicle in the event of a vehicle collision or the like.

[0002]

2. Description of the Related Art In a conventional vehicle, as illustrated in FIG. 5, side sills 2 connected to the left and right sides of a floor panel 1 extend in the front-rear direction of the vehicle and are spaced above the side sills 2. Front and rear door bodies 3 placed
The front end edge is supported by the front pillar or the center pillar (not shown) by the upper and lower hinges, and the rear end edge is supported by the center pillar or the striker (not shown) by the latch when closed. When a large impact is applied from one side, the door body 3 is first deformed as shown by the solid line in FIG.
May relatively move inward on the side sill 2 and be displaced inside the passenger compartment 4.

[0003]

SUMMARY OF THE INVENTION The present invention is intended to suppress the displacement of the vehicle door toward the vehicle interior when a large impact is applied from the side of the vehicle.

[0004]

Therefore, a vehicle door locking device according to the present invention is formed on a peripheral portion of a vehicle door body and faces a vehicle interior side when the door body is closed. A stepped portion, and a second stepped portion formed on a vehicle body facing the peripheral edge portion of the closed door body at a distance from the vehicle body in the vehicle width direction of the first stepped portion. ing.

[0005]

[Function] That is, when the vehicle door body is closed,
A first stepped portion formed on a peripheral edge portion of the door body and a second stepped portion formed on a vehicle body facing the peripheral edge portion of the door body at a distance are arranged in the vehicle width direction. Therefore, when the door body is displaced toward the vehicle interior due to a large impact applied from the side of the vehicle, the first stepped portion of the door body and the second stepped portion of the vehicle body engage with each other. Therefore, the peripheral portion of the door body is supported by the vehicle body and the displacement of the door body toward the vehicle interior can be suppressed.

[0006]

Embodiments of the present invention will be described below by assigning the same reference numerals to the parts equivalent to those of the conventional device and the parts equivalent to the respective embodiments. 1 and 2, the front and rear door bodies 3 attached to the left and right side surfaces of the vehicle body 10 have their front end edges supported by the front pillar 11 or the center pillar 12 by means of upper and lower hinges, and the rear end edges when closed. Center pillars 1 by latch
2 or a quarter panel 13, and a door body 3
The lower surface of the stepped portion 1 has an inwardly and downwardly inclined surface 14.
5 is formed.

Below the closed door body 3,
A side sill 2 extending in the front-rear direction of the vehicle is arranged at a distance from the door body 3, and an upper surface of the side sill 2 rises inside the door body stepped portion 15 in the vehicle width direction and has an inclined surface 16 outwardly upward. A stepped portion 17 is formed.

Therefore, when a large impact is applied from the outside of the vehicle body 10, the door body 3 is deformed and at the same time moves relatively inward on the side sill 2 as illustrated in FIG. Then, the inclined surface 14 of the door main body stepped portion 15 becomes the inclined surface 16 of the side sill stepped portion 17.
Since the lower part of the door body 3 is locked to the side sill 2 which is a part of the vehicle body 10, the displacement to the inside of the vehicle compartment 4 is strongly suppressed, and the stepped portions 15 and 17 are Since the inclined surfaces 14 and 16 reliably engage with each other, the reliability of the restraining action against the inward displacement of the door body 3 can be easily enhanced.

Further, when the central portion of the door body 3 is deformed to a relatively large extent inside the vehicle compartment 4 as in the case where a lateral impact is applied to the central portion of the door body 3, the door body is accompanied by this. The lower part of 3 inclines toward the inside of the passenger compartment 4, and therefore the inclined surface 14 of the stepped portion 15 of the door body also inclines toward the inside of the passenger compartment 4,
Although it is pulled to the central portion of the door body 3, since the inclined surface 14 is originally inclined inward and downward, the inclined surface 14 is firmly engaged with the inclined surface 16 of the side sill stepped portion 17 without slipping. As a result, the locked state of both inclined surfaces is hard to come off.

That is, for various collisions from the side,
The inward displacement of the lower portion of the door body 3 is locked to the side sill 2 which is a part of the vehicle body 10, and the input to the door body 3 is supported by the vehicle body 10. As a result, the door body 3 is closed. 4 Inward displacement is always strongly suppressed.

In the above embodiment, the step portion of the side sill is formed inside the step portion formed on the lower surface of the door body in the vehicle width direction. It may be provided between the main body and the front pillar, the center pillar and / or the quarter panel.

That is, a stepped portion having a front inwardly inclined surface is formed on the front end surface of the front and / or rear door body, and the stepped portion is provided on the inner side in the vehicle width direction and on the rear outer side. A stepped portion with an inclined surface is formed on the rear surface of the front pillar and / or the center pillar, respectively, and a stepped portion with an inclined surface toward the rear inward is formed on the front and / or rear of the door body. By forming it on the end face, and inside the vehicle width direction of the stepped part, a stepped part with an inclined surface to the front outside is formed on the front surface of the center pillar and / or the quarter panel, respectively. When the door body is about to be displaced into the vehicle compartment due to a collision from, the inclined surfaces of the facing step portions are engaged with each other, and the front and rear peripheral portions of the door body are locked to the vehicle body, Similar to the above example, the door Body is one that can be reliably prevented from being displaced toward the cabin internal.

Further, as shown in FIG. 4, in place of the inclined surface of the stepped portion in each of the above-mentioned embodiments, a convex portion 20 is formed on the peripheral portion of the door body 3, and the convex portion 20 has a vehicle shape. Inside the width direction, a step portion 21 is formed on the vehicle body 10 of the side sill, front pillar, center pillar and / or quarter panel facing the peripheral edge portion of the door body 3, while a step portion 22 connected to the step portion 21 is formed. The door body convex part 2
0 is provided on the center side of the door body 3 with respect to 0, and when the door body 3 is deformed by a large impact applied from the outside of the door body 3, the door body convex portion 20 is securely engaged with the vehicle body stepped portion 21. In addition, the central portion of the door body 3 is deformed to a relatively large extent inside the vehicle compartment 4, and the peripheral edge portion of the door body 3 tilts toward the center of the door body 3 and is pulled toward the central portion of the door body 3. Even if it is broken, the door body convex portion 20 is locked to the vehicle body stepped portion 22 so that the vehicle body 10 can further securely support the peripheral portion of the door body 3. Is.

[0014]

In the vehicle door locking device according to the present invention, when the vehicle door body is closed, the vehicle door body is formed with the first stepped portion formed on the peripheral portion of the door body and the vehicle body. Since the second stepped portion is arranged in the vehicle width direction, even if the door body is displaced toward the vehicle interior due to a large impact applied from the side of the vehicle, the first stepped portion of the door body And the second stepped portion of the vehicle body are engaged with each other and the peripheral portion of the door body is supported by the vehicle body, so that the door body can be reliably prevented from being displaced toward the vehicle interior.

[Brief description of drawings]

FIG. 1 is a schematic perspective view of an embodiment of the present invention.

2 is an enlarged vertical sectional view taken along line II-II of FIG.

FIG. 3 is an explanatory view of the operation of the above embodiment.

FIG. 4 is a schematic vertical cross-sectional view of a main part in another embodiment of the present invention.

FIG. 5 is a schematic vertical sectional view of a main part of a conventional device.

FIG. 6 is an operation explanatory view of the conventional device.

[Explanation of symbols]

 2 side sill 3 door body 4 vehicle interior 10 vehicle body 14 inclined surface 15 stepped portion 16 inclined surface 17 stepped portion 20 convex portion 21 stepped portion 22 stepped portion

Claims (6)

[Claims] 1. A first stepped portion that is formed on a peripheral portion of a vehicle door body and faces the inside of the vehicle when the door body is closed, and is spaced apart from the closed peripheral portion of the door body. And a vehicle door locking device having a second stepped portion formed on the vehicle body facing each other and arranged inside the first stepped portion in the vehicle width direction. 2. The vehicle door locking device according to claim 1, wherein the vehicle body is a side sill, a front pillar, a center pillar, and / or a quarter panel. 3. The vehicle door locking device according to claim 1 or 2, wherein the first stepped portion has an inclined surface that is inclined outward toward the center side of the door body. 4. The vehicle door locking device according to claim 1, wherein the second stepped portion has an inclined surface that is inclined outward toward the center side of the door body. 5. The stepped portion according to claim 1 or 2, wherein the first stepped portion forms a convex portion toward the interior of the vehicle, and the stepped portion is formed on the vehicle body at a side of the convex portion toward the center of the door body. A door locking device for a vehicle, which is formed with. 6. The vehicle door locking device according to claim 1, wherein the second stepped portion is arranged closer to the center of the door body than the first stepped portion.