JP2520503Y2 - Car door structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to an automobile door structure such as a four-door sedan in which a rear edge of a front door and a front end of a rear door are separated from each other and arranged in a butted state. .

(Prior Art) Conventionally, in the 4-door sedan of the above-mentioned example, as shown in FIG. 7, the rear end of the front door 52 is located outside the center pillar 51.
52a and the front end portion 53a of the rear door 53 are arranged so as to be in a butt state in which they are separated from each other.

By the way, when a frontal collision of a vehicle occurs, the front door 52 is retracted by an external force, and the rear end portion 52a of the front door 52 slips into the inside of the rear door 53 as shown by a phantom line in FIG. Front doors 5 interfere with each other
Not only 2 but also the opening operation of the rear door 53 becomes troublesome.

Therefore, conventionally, as described in, for example, Japanese Utility Model Laid-Open No. 61-5265, when the front door is retracted to the front outer surface of the center pillar facing the rear end surface of the front door, the rear end of the front door It has been proposed to provide a sliding guide surface for guiding the portion to the outside of the vehicle to prevent so-called deadlock in which the rear edge of the front door slips into the inside of the rear door, but this structure only prevents a frontal collision. With the configuration taken into consideration, there is a problem that the front edge of the rear door wraps outside the rear edge of the front door when the vehicle is rear-end hit.

Also, conventionally, the rear end of the front door and the front end of the rear door are staggered in the vehicle width direction, and the front end of the rear door is positioned inside the rear end of the front door, thereby deadlocking both doors. Preventive structures have also been proposed.

However, in the above-described conventional structure, the front end of the rear door projects forward longer than the pivot of the rear door with respect to the center pillar, so if the front end of the rear door is located inside,
When the rear door is opened, the front end of the rear door may interfere with the hinge.To prevent this interference, the molding accuracy and assembly accuracy of the door panel must be strictly controlled, which not only results in poor productivity. However, there was a problem that the appearance was impaired.

(Purpose of the Invention) This invention reduces the lap amount between the front door and the rear door at the time of a frontal collision and a rear collision without changing the structure of the door and without changing the structure of the center pillar. An object of the present invention is to provide a vehicle door structure that can facilitate the occupant's escape from the passenger compartment.

(Structure of the Invention) In this invention, in a vehicle in which the rear edge of the front door and the front edge of the rear door are separated from each other and arranged in a butted state, a rigid body is attached to the rear door inner panel at an appropriate position in the vertical direction of the rear door front edge. And a stopper for contacting and supporting the front edge of the rear door when the rear edge of the front door and the front edge of the rear door collide with each other. While being in contact with the front edge of the passenger compartment of the vehicle and provided substantially flush with the front edge,
The vehicle door structure is characterized in that the stopper member is fixed by a fastening member to an inclined portion of the rear door inner panel that is substantially opposed to the rear edge of the front door and is inclined outward in the vehicle width direction.

According to the present invention, when the front edge of the front door and the front edge of the rear door collide with each other, the rear edge of the front door abuts against the supporting portion of the stopper member, thereby wrapping the front door and the rear door. Since the amount is smaller than that of the conventional structure, the door can be opened while deforming the lap portion with a slight force, so that the passenger can easily escape from the passenger compartment in the event of a collision. effective.

Moreover, when the above-mentioned stopper member is fastened to the front edge of the rear door, the mounting portion of the stopper member is so adjusted that the support portion thereof is flush with the end portion of the front edge of the rear door and the position can be adjusted. It is an inclined surface. Further, since the fastening structure as described above (that is, the structure in which the stopper member is fastened to the inclined portion) is used, there is an effect that the load proof stress input to the support portion can be improved. Furthermore, by arranging both the end portion of the front edge of the rear door and the support portion so as to be flush with each other, it is possible to effectively prevent the occurrence of deadlock.

Embodiment An embodiment of the present invention will be described in detail below with reference to the drawings.

The drawings show the door structure of an automobile. In FIGS. 1 and 2, a front door 2 is arranged in the front part of a center pillar 1 and a rear door 3 is arranged in the rear part thereof.

The above-described front door 2 is configured by joining the door outer panel 4 and the door inner panel 5, and at the same time, joining the first member 6 and the second member 7 to a predetermined portion of the door inner panel 5 to form a closed cross section. The impact bar 8 extending in the front-rear direction of the formed vehicle is stretched.

The above-mentioned rear door 3 is constructed by joining a door outer panel 9 and a door inner panel 10, and at a predetermined portion of the door inner panel 10, a first member 11 and a second member 12 are joined to form a closed cross section. An impact bar 13 that extends in the front-rear direction of the vehicle body is stretched.

And the rear edge 2a of the front door 2 and the rear door 3 described above.
The front edge 3a and the front edge 3a of the center pillar 1 are spaced apart from each other on the vehicle exterior side in the front-rear direction and are arranged in a butted state.

The proper position in the vertical direction of the above-mentioned rear door front edge 3a, that is, the first
Position of impact bar 13 shown in the figure and waistline
Stopper members 15 and 16 made of steel plates having a plate thickness of about 2 mm are provided at positions slightly lower than 14.

As shown in FIG. 2, one stopper member 15 of the stopper members 15 and 16 described above is such that the mounting surface of the front end of the first member 11 of the impact bar 13 to the rear door inner panel 10 is directed outward in the vehicle width direction. And the inclined portion 11a that is inclined,
The impact bar joint 10a of the door inner panel 10 joining the inclined portion 11a is fastened and fixed together by using a stat bolt 17 and a nut 18 as fastening members.

The front end of the stopper member 15 is bent into an L shape to form a support portion 15a, and a rubber 19 made of rubber is attached to the support portion 15a.

Here, the above-mentioned supporting portion 15a is the rear edge 2 of the front door 2.
When the a and the front edge 3a of the rear door 3 collide, it is a stopper surface that abuts and supports the rear edge 2a of the front door.
The front end of the a is abutted against the front edge of the rear door front edge 3a on the passenger compartment side and is provided substantially flush with the front edge 3a.
It is almost opposite to 2a.

As shown in FIG. 3, the other stopper member 16 described above uses a stud bolt 20 and a nut 21 as a fastening member on the door inner panel 10 near the hemming joint between the door outer panel 9 and the door inner panel 10. It is fixed.

The front end of the stopper member 16 is bent into an L shape to form a support portion 16a, and a rubber 22 made of rubber is attached to the support portion 16a. This support portion 16a also has a front door rear edge 2a and a rear door front edge 3 as in the previous support portion 15a.
It is a stopper surface that abuts and supports the rear edge 2a of the front door at the time of collision with a. ing.

Incidentally, 23 in FIG. 2 is a weather strip,
As shown in FIG. 4, the front portion of the rear door 3 is supported by the center pillar 1 by a door hinge 25.

The illustrated embodiment is configured as described above, and the operation will be described below.

When a vehicle collides head-on, the front door rear edge 2a collides with the rear door front edge 3a due to the collision force F acting on the vehicle body (see FIG. 5). Are abutted and supported by the support portions 15a, 16a of the stopper members 15, 16.

As a result, the amount of wrapping between the rear edge 2a of the front door and the front edge 3a of the rear door becomes smaller than that of the conventional structure. Therefore, the front door 2 is deformed with a slight force as shown in FIG. Since you can open the rear door 3,
This is effective in facilitating the occupant's escape from the passenger compartment during a collision.

The above-mentioned action at the time of collision between the front door rear edge 2a and the rear door front edge 3a is substantially the same even at the time of rear-end collision, and the front door 2, by the supporting portions 15a, 16a of the stopper members 15, 16 described above.
The lap amount of the rear door 3 can be reduced, and the passenger can easily escape from the vehicle compartment at the time of a collision as described above.

In addition, since the stopper member 15 constituted by a member different from the rear door inner panel 10 is fastened together with the mounting portion 11a of the impact bar 13 via the rear door inner panel 10,
The stopper member 15 can be reinforced by the impact bar 13, and the mounting strength and rigidity of the stopper member 15 can be improved. As a result, at the time of a collision, the stopper member 15 does not deform inward of the vehicle body,
There is an effect that it is possible to effectively prevent the occurrence of deadlock due to the deformation of the stopper member 15 itself.

Further, unlike the conventional structure in which the center pillar structure is changed or the door is formed in a stepped manner, the stopper members 15 and 16 described above are provided in a position apart from the door hinge 25. At the time, when the rear door 3 is opened, there is no possibility that the front end of the rear door 3 interferes with the hinge pillar 1.

Moreover, when the stopper member 15 is fastened to the front edge 3a of the rear door, the support member 15a is flush with the end of the front edge 3a of the rear door, and the position of the stopper member can be adjusted. The mounting part of 15 is an inclined surface. Further, since the fastening structure as described above (that is, the structure that is fastened to the inclined portion of the stopper member 15) is used, there is an effect that the load proof strength input to the support portion 15a can be improved.
Further, by arranging both the end portion of the front edge 3a of the rear door and the support portion 15a so as to be flush with each other, it is possible to effectively prevent the occurrence of deadlock.

In the above embodiment, the above-mentioned stopper members 15 and 16 are provided only at appropriate positions in the vertical direction of the front edge 3a of the rear door, but in addition to these stopper members 15 and 16, as shown in FIG.
Of course, a stopper member 15 'similar to that described above may be provided at an appropriate position in the vertical direction of the front door rear edge 2a, and the front side stopper member 15' and the rear side stopper members 15 and 16 may be arranged to face each other. is there.

In FIG. 6, the upper stopper member is not shown for convenience of illustration.

Further, by providing the above-mentioned stopper member and at least a part of the front edge 3a of the rear door, the amount of retreat of the front door 2 can be greatly reduced compared to that of the conventional structure. Even in the lapped state as shown in, the front door 2 and the rear door 3 can be opened with a slight force, and the passenger can easily escape from the passenger compartment.

Further, the front door 2 and the rear door 3 are formed in a curved shape so that a substantially central portion outside the vehicle as viewed from the front-rear direction of the vehicle body projects outward, and the collision load is generally input three-dimensionally. Therefore, if the stopper members 15 and 16 are attached at appropriate positions in the vertical direction, the wrap amounts of the front and rear doors 2 and 3 at the time of collision are small. In addition, the stopper members 15 and 16 can be attached at the position where the door hinge 25 is arranged so as not to interfere with the hinge 25.

In the correspondence between the configuration of the present invention and the above-described embodiment, the connecting member of the present invention corresponds to the stat bolt 17 and the nut 18 of the embodiment, but the present invention is not limited to the configuration of the above-described embodiment. Not something.

[Brief description of drawings]

The drawings show an embodiment of the present invention, FIG. 1 is a side view of a four-door sedan showing a door structure of an automobile, FIG. 2 is an enlarged sectional view of an essential part taken along line II-II of FIG. 1, and FIG. 1 is an enlarged sectional view of an essential part taken along the line III-III in FIG. 1, FIG. 4 is an enlarged sectional view of an essential part taken along the line IV-IV of FIG. 1, FIG. 5 is an explanatory view at the time of collision, and FIG. FIG. 7 is a partial sectional view showing another embodiment of a vehicle door structure, and FIG. 7 is a partial sectional view showing a conventional vehicle door structure. 2 …… Front door 2a …… Front door rear edge 3 …… Rear door, 3a …… Rear door front edge 10 …… Rear door inner panel 11a …… Inclined part, 13 …… Impact bar 15 …… Stopper member, 15a …… Support Part 17: Stat bolt (fastening member) 18: Nut (fastening member)

Claims (1)

(57) [Scope of utility model registration request] 1. A vehicle in which a rear edge (2a) of a front door (2) and a front edge (3a) of a rear door (3) are separated from each other, and the front edge (3a) of the rear door is A stopper member (15) made of a rigid body is provided on the rear door inner panel (10) at a proper position in the vertical direction, and the stopper member (15) has a front door rear edge (2a).
At the time of collision between the rear door front edge (3a) and the rear door (3a), a support portion (15a) is provided which abuts and supports the front door rear edge (2a). A slope that is in contact with the front edge (3a) and is substantially flush with the front edge (3a), is substantially opposite to the front door rear edge (2a), and is inclined outward in the vehicle width direction of the rear door inner panel (10). Department (11
a) to the stopper member (1) by fastening members (17) (18)
5) Fixed car door structure.